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ESP32-S31-WROOM-3-N16R16V (CONN-SMD_ESP32-S31-WROOM-3) — Symbol, Footprint IPC-7351B & 3D STEP Model

ESP32-S31-WROOM-3-N16R16V

ESPRESSIFID: C55371223CONN-SMD_ESP32-S31-WROOM-3 · 99 Pins · Pitch 0.85mmIPC-7351B Verified5.0 (0)
SYNCHRONIZED 4D CROSS-PROBE MODETouch or hover any pin to highlight concurrently across Symbol, Footprint and 3D
1. SYMBOL
U1 · ESP32-S31-WROOM-3-N16R16V (CONN-SMD_ESP32-S31-WROOM-3)1ANT2VDDA33VDDA44CHIP_PU5XTAL 32K N/G6XTAL 32K P/G7GPIO28GPIO39GPIO410GPIO511VDDPST_112GPIO613GPIO714GPIO815GPIO916GPIO1017GPIO1118VREF_TOUCH19GPIO1220GPIO1321GPIO1422GPIO1523GPIO1624GPIO1725GPIO1826GPIO1927SDIO_DATA028SDIO_DATA129SDIO_DATA230VDD_PSRAM1P831SDIO_DATA332SDIO_CLK33SDIO_CMD34VDD_PSRAM1P835VDD_LDO1P8_36SPICS37SPIQ38SPIWP39VDD_SPI40SPIHD41SPICLK42SPID43VCCA/VDDPST_44USB_DP45USB_DM46GPIO3347GPIO3448GPIO3549GPIO3650GPIO3799GND98GND97GND96GND95GND94GND93GND92GND91NC90GND89GND88GND87GND86GND85GND84GND83GND82GND81GND80VDDA279XTAL_P78XTAL_N77VDDA176GPIO6175GPIO6074GPIO5973GPIO5872MTMS71MTDI70MTCK69MTDO68GPIO5367GPIO5266GPIO5165GPIO5064VDDPST_463VREF_ADC62GPIO4961GPIO4860GPIO4759GPIO4658GPIO4557GPIO4456GPIO4355GPIO4254VDDPST_353GPIO4052GPIO3951GPIO38Grid Pitch = 2.54mm (IEEE-315)-20.3-15.2-10.2-5.105.110.215.220.368.663.558.453.348.343.238.133.027.922.917.812.77.62.5-2.5-7.6-12.7-17.8-22.9-27.9-33.0-38.1-43.2-48.3-53.3-58.4-63.5-68.6mm
2. 2D FOOTPRINT
ANTENNA KEEPOUT (6.3mm)9493929190898887868584838281807978777675747372717069686766656463626160595857565554535251504948474645444342414039383736353433323130292827262524232221201918171615141312111098765432959599195959595969597959598E=22.00mm · Pitch e=0.85mmD=30.00mm-19-17-15-13-11-9-7-5-3-11357911131517192321191715131197531-1-3-5-7-9-11-13-15-17-19-21-23mm
3. 3D CAD MODEL
Package Body: 22.00mm × 30.00mm · Pitch: 0.85mm · Ruler Step: 1.00mmSynced <100ms

Synchronized Pinout (Symbol / 2D / 3D) (99/99)

Touch or hover any pin to highlight concurrently across Symbol, Footprint and 3D
PinSymbolTypeFunction (EN)
1ANTI/OMultiplexed I/O & Peripheral Pin ANT (General)
2VDDA3PowerPower Supply Input (VDDA3 — 3.3V VDD3P3 (3.0V ~ 3.6V))
3VDDA4PowerPower Supply Input (VDDA4 — 3.3V VDD3P3 (3.0V ~ 3.6V))
4CHIP_PUISystem Enable & Hardware Reset (CHIP_PU)
5XTAL 32K N/GPIO0__I/OMultiplexed I/O & Peripheral Pin XTAL 32K N/GPIO0__ (RTC/CLK)
6XTAL 32K P/GPIO1__I/OMultiplexed I/O & Peripheral Pin XTAL 32K P/GPIO1__ (RTC/CLK)
7GPIO2I/OMultiplexed I/O & Peripheral Pin GPIO2 (General)
8GPIO3I/OMultiplexed I/O & Peripheral Pin GPIO3 (General)
9GPIO4I/OMultiplexed I/O & Peripheral Pin GPIO4 (General)
10GPIO5I/OMultiplexed I/O & Peripheral Pin GPIO5 (General)
11VDDPST_1PowerPower Supply Input (VDDPST_1 — 3.3V VDD3P3 (3.0V ~ 3.6V))
12GPIO6I/OMultiplexed I/O & Peripheral Pin GPIO6 (General)
13GPIO7I/OMultiplexed I/O & Peripheral Pin GPIO7 (General)
14GPIO8I/OMultiplexed I/O & Peripheral Pin GPIO8 (General)
15GPIO9I/OMultiplexed I/O & Peripheral Pin GPIO9 (General)
16GPIO10I/OMultiplexed I/O & Peripheral Pin GPIO10 (General)
17GPIO11I/OMultiplexed I/O & Peripheral Pin GPIO11 (General)
18VREF_TOUCHAnalogMultiplexed I/O & Peripheral Pin VREF_TOUCH (General)
19GPIO12I/OMultiplexed I/O & Peripheral Pin GPIO12 (General)
20GPIO13I/OMultiplexed I/O & Peripheral Pin GPIO13 (General)
21GPIO14I/OMultiplexed I/O & Peripheral Pin GPIO14 (General)
22GPIO15I/OMultiplexed I/O & Peripheral Pin GPIO15 (General)
23GPIO16I/OMultiplexed I/O & Peripheral Pin GPIO16 (General)
24GPIO17I/OMultiplexed I/O & Peripheral Pin GPIO17 (General)
25GPIO18I/OMultiplexed I/O & Peripheral Pin GPIO18 (General)
26GPIO19I/OMultiplexed I/O & Peripheral Pin GPIO19 (General)
27SDIO_DATA0I/OMultiplexed I/O & Peripheral Pin SDIO_DATA0 (General)
28SDIO_DATA1I/OMultiplexed I/O & Peripheral Pin SDIO_DATA1 (General)
29SDIO_DATA2I/OMultiplexed I/O & Peripheral Pin SDIO_DATA2 (General)
30VDD_PSRAM1P81__PowerPower Supply Input (VDD_PSRAM1P81__ — 3.3V VDD3P3 (3.0V ~ 3.6V))
31SDIO_DATA3I/OMultiplexed I/O & Peripheral Pin SDIO_DATA3 (General)
32SDIO_CLKI/OMultiplexed I/O & Peripheral Pin SDIO_CLK (General)
33SDIO_CMDI/OMultiplexed I/O & Peripheral Pin SDIO_CMD (General)
34VDD_PSRAM1P82__PowerPower Supply Input (VDD_PSRAM1P82__ — 3.3V VDD3P3 (3.0V ~ 3.6V))
35VDD_LDO1P8_PowerPower Supply Input (VDD_LDO1P8_ — 3.3V VDD3P3 (3.0V ~ 3.6V))
36SPICSI/OMultiplexed I/O & Peripheral Pin SPICS (SPI)
37SPIQI/OMultiplexed I/O & Peripheral Pin SPIQ (SPI)
38SPIWPI/OMultiplexed I/O & Peripheral Pin SPIWP (SPI)
39VDD_SPIPowerRegulated Power Output (VDD_SPI — 3.3V VDD3P3 (3.0V ~ 3.6V))
40SPIHDI/OMultiplexed I/O & Peripheral Pin SPIHD (SPI)
41SPICLKI/OMultiplexed I/O & Peripheral Pin SPICLK (SPI)
42SPIDI/OMultiplexed I/O & Peripheral Pin SPID (SPI)
43VCCA/VDDPST_2PowerPower Supply Input (VCCA/VDDPST_2 — 3.3V VDD3P3 (3.0V ~ 3.6V))
44USB_DPI/OMultiplexed I/O & Peripheral Pin USB_DP (USB)
45USB_DMI/OMultiplexed I/O & Peripheral Pin USB_DM (USB)
46GPIO33I/OMultiplexed I/O & Peripheral Pin GPIO33 (General)
47GPIO34I/OMultiplexed I/O & Peripheral Pin GPIO34 (General)
48GPIO35I/OMultiplexed I/O & Peripheral Pin GPIO35 (General)
49GPIO36I/OMultiplexed I/O & Peripheral Pin GPIO36 (General)
50GPIO37I/OMultiplexed I/O & Peripheral Pin GPIO37 (General)
51GPIO38I/OMultiplexed I/O & Peripheral Pin GPIO38 (General)
52GPIO39I/OMultiplexed I/O & Peripheral Pin GPIO39 (General)
53GPIO40I/OMultiplexed I/O & Peripheral Pin GPIO40 (General)
54VDDPST_3PowerPower Supply Input (VDDPST_3 — 3.3V VDD3P3 (3.0V ~ 3.6V))
55GPIO42I/OMultiplexed I/O & Peripheral Pin GPIO42 (General)
56GPIO43I/OMultiplexed I/O & Peripheral Pin GPIO43 (General)
57GPIO44I/OMultiplexed I/O & Peripheral Pin GPIO44 (General)
58GPIO45I/OMultiplexed I/O & Peripheral Pin GPIO45 (General)
59GPIO46I/OMultiplexed I/O & Peripheral Pin GPIO46 (General)
60GPIO47I/OMultiplexed I/O & Peripheral Pin GPIO47 (General)
61GPIO48I/OMultiplexed I/O & Peripheral Pin GPIO48 (General)
62GPIO49I/OMultiplexed I/O & Peripheral Pin GPIO49 (General)
63VREF_ADCI/OMultiplexed I/O & Peripheral Pin VREF_ADC (ADC)
64VDDPST_4PowerPower Supply Input (VDDPST_4 — 3.3V VDD3P3 (3.0V ~ 3.6V))
65GPIO50I/OMultiplexed I/O & Peripheral Pin GPIO50 (General)
66GPIO51I/OMultiplexed I/O & Peripheral Pin GPIO51 (General)
67GPIO52I/OMultiplexed I/O & Peripheral Pin GPIO52 (General)
68GPIO53I/OMultiplexed I/O & Peripheral Pin GPIO53 (General)
69MTDOI/OMultiplexed I/O & Peripheral Pin MTDO (SWD/JTAG)
70MTCKI/OMultiplexed I/O & Peripheral Pin MTCK (SWD/JTAG)
71MTDII/OMultiplexed I/O & Peripheral Pin MTDI (SWD/JTAG)
72MTMSI/OMultiplexed I/O & Peripheral Pin MTMS (SWD/JTAG)
73GPIO58I/OMultiplexed I/O & Peripheral Pin GPIO58 (General)
74GPIO59I/OMultiplexed I/O & Peripheral Pin GPIO59 (General)
75GPIO60I/OMultiplexed I/O & Peripheral Pin GPIO60 (General)
76GPIO61I/OMultiplexed I/O & Peripheral Pin GPIO61 (General)
77VDDA1PowerPower Supply Input (VDDA1 — 3.3V VDD3P3 (3.0V ~ 3.6V))
78XTAL_NI/OMultiplexed I/O & Peripheral Pin XTAL_N (RTC/CLK)
79XTAL_PI/OMultiplexed I/O & Peripheral Pin XTAL_P (RTC/CLK)
80VDDA2PowerPower Supply Input (VDDA2 — 3.3V VDD3P3 (3.0V ~ 3.6V))
81GNDGNDGround Reference Pin (GND)
82GNDGNDGround Reference Pin (GND)
83GNDGNDGround Reference Pin (GND)
84GNDGNDGround Reference Pin (GND)
85GNDGNDGround Reference Pin (GND)
86GNDGNDGround Reference Pin (GND)
87GNDGNDGround Reference Pin (GND)
88GNDGNDGround Reference Pin (GND)
89GNDGNDGround Reference Pin (GND)
90GNDGNDGround Reference Pin (GND)
91NCI/OMultiplexed I/O & Peripheral Pin NC (General)
92GNDGNDGround Reference Pin (GND)
93GNDGNDGround Reference Pin (GND)
94GNDGNDGround Reference Pin (GND)
95GNDGNDGround Reference Pin (GND)
96GNDGNDGround Reference Pin (GND)
97GNDGNDGround Reference Pin (GND)
98GNDGNDGround Reference Pin (GND)
99GNDGNDGround Reference Pin (GND)
PIN 1 ANT
I/O
Multiplexed I/O & Peripheral Pin ANT (General)
Design note: Signal terminal ANT (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: ANT. Supported peripheral buses: General.
IPC-7351B Solder Density & Span C/G/Z Tuner

Live Embedded Datasheet PDF & Technical Drawing Gallery (6 Standard Drawings + 7 Extracted Figures)

Read the original datasheet PDF directly or click any drawing to view fullscreen
Open PDF in New Window ↗Read Datasheet PDF (.pdf)
PDF VIEWEROfficial Datasheet Document: ESP32-S31-WROOM-3-N16R16V (ESPRESSIF · CONN-SMD_ESP32-S31-WROOM-3)
Scroll, search text (Ctrl+F), or expand directly inside the embedded PDF reader below
1. Realistic 3D PackageREPRESENTATIVE
ESP32-S31-WROOM-3-N16R16V (CONN-SMD_ESP32-S31-WROOM-3) - 1. Realistic 3D Package
Detailed solid 3D bodyExpand ›
2. Standard Pinout (Top View)CLEANROOM PINOUT
ESP32-S31-WROOM-3-N16R16V (CONN-SMD_ESP32-S31-WROOM-3) - 2. Standard Pinout (Top View)
True package pinout (99 pins)Expand ›
3. Original Datasheet PinoutPDF PINOUT
ESP32-S31-WROOM-3-N16R16V (CONN-SMD_ESP32-S31-WROOM-3) - 3. Original Datasheet Pinout
Uncropped datasheet pin diagramExpand ›
4. Package Dimensions (D×E×A)PACKAGE DIMENSIONS
ESP32-S31-WROOM-3-N16R16V (CONN-SMD_ESP32-S31-WROOM-3) - 4. Package Dimensions (D×E×A)
CONN-SMD_ESP32-S31-WROOM-3 · 22.00×30.00mm · Pitch 0.85mmExpand ›
5. Recommended Land PatternLAND PATTERN
ESP32-S31-WROOM-3-N16R16V (CONN-SMD_ESP32-S31-WROOM-3) - 5. Recommended Land Pattern
IPC-7351B Footprint (107 Pads)Expand ›
6. Application SchematicSCHEMATIC
ESP32-S31-WROOM-3-N16R16V (CONN-SMD_ESP32-S31-WROOM-3) - 6. Application Schematic
Typical Application SchematicExpand ›
Original Datasheet Pinouts & Technical Drawings (7 figures · Page 1/1)
Showing 1–7 of 7 uncropped original figures for ESP32-S31-WROOM
P1 · p01_fig01336×313px
ESP32-S31-WROOM-3-N16R16V (CONN-SMD_ESP32-S31-WROOM-3) — PRELIMINARY
PRELIMINARY
P2 · p02_fig011184×1650px
ESP32-S31-WROOM-3-N16R16V (CONN-SMD_ESP32-S31-WROOM-3) — ESP32-S31 Functional Block Diagram
ESP32-S31 Functional Block Diagram
P2 · p02_fig01P2
ESP32-S31-WROOM-3-N16R16V (CONN-SMD_ESP32-S31-WROOM-3) — Datasheet Page 2 (p02_fig01)
Datasheet Page 2 (p02_fig01)
P17 · p17_fig011803×1981px
ESP32-S31-WROOM-3-N16R16V (CONN-SMD_ESP32-S31-WROOM-3) — Figure 2-1. ESP32-S31 Pin Layout (Top View)
Figure 2-1. ESP32-S31 Pin Layout (Top View)
P17 · p17_fig01P17
ESP32-S31-WROOM-3-N16R16V (CONN-SMD_ESP32-S31-WROOM-3) — Datasheet Page 17 (p17_fig01)
Datasheet Page 17 (p17_fig01)
P104 · p104_fig011961×1412px
ESP32-S31-WROOM-3-N16R16V (CONN-SMD_ESP32-S31-WROOM-3) — Figure 7-1. QFN80 (8×8 mm) Package
Figure 7-1. QFN80 (8×8 mm) Package
P104 · p104_fig01P104
ESP32-S31-WROOM-3-N16R16V (CONN-SMD_ESP32-S31-WROOM-3) — Datasheet Page 104 (p104_fig01)
Datasheet Page 104 (p104_fig01)

Technical Specifications & Part Details (ESP32-S31-WROOM-3-N16R16V)

Summary of electrical parameters, mechanical dimensions, voltage range and peripheral interfaces from Datasheet (EN)
Wireless Wi-Fi / Bluetooth LE SoC Module
Detailed Overview:ESP32-S31-WROOM-3-N16R16V (CONN-SMD_ESP32-S31-WROOM-3) is a 99-pin wireless wi-fi / bluetooth le soc module featuring a 30.00 × 22.00 × 3.10 mm mechanical envelope (lead pitch e = 0.85 mm). Rated for 3.0V ~ 3.6V (Typ 3.3V) supply operation across -40°C ~ +85°C (Industrial Grade) with integrated Wi-Fi, Bluetooth / BLE, USB, UART, SPI, I2C, I2S, ADC, DAC, PWM, JTAG / SWD, RTC/CLK, SWD/JTAG interfaces.
Operating Supply VoltageV_CC / V_DD
3.0V ~ 3.6V (Typ 3.3V)
Place 100nF + 10µF X7R decoupling capacitors < 2mm from supply pins
Ambient Operating TemperatureT_A
-40°C ~ +85°C (Industrial Grade)
Industrial temperature grade; T_J(max) = +125°C
Clock / RF Operating Frequencyf_CLK / f_RF
2.4 GHz
Extracted from authoritative PDF specification tables
Current & Power RatingI_OUT / I_CC
I_TX(peak) ≈ 310 mA @ 3.3V | Deep-Sleep ≈ 10 µA | I_GPIO(max) = 40 mA
Observe per-pin absolute maximum current limits
Package Envelope (D × E × A)D × E × A
30.00 × 22.00 × 3.10 mm (A1=0.00 mm)
Package family: CASTELLATED_MODULE (CONN-SMD_ESP32-S31-WROOM-3)
Pin Count & Lead PitchN / e
99 Pins | Pitch e = 0.85 mm (33.5 mil)
Normalized to Center-to-Center Span C per IPC-7351B
Integrated Peripheral InterfacesBuses
Wi-Fi, Bluetooth / BLE, USB, UART, SPI, I2C, I2S, ADC, DAC, PWM, JTAG / SWD, RTC/CLK, SWD/JTAG
Cross-linked with 4D Pinout & Schematic Symbol
Reflow & Moisture SensitivityIPC / MSL
IPC-7351B Level B | J-STD-020 (Peak 260°C) | MSL-3
60% windowed solder paste stencil on thermal EPAD
Engineering Safety Alert: Boot Strapping Pin Alert (MTDO, MTDI): Do not force conflicting external pull-ups/pull-downs during POR reset.
Engineering Safety Alert: Connect exposed thermal pad (if present) to internal ground plane via 0.3mm stitched thermal vias.

5-Point Standards Verification

Automated compliance checks prior to export
5/5 PASS
IEEE-315 Symbol99 auto-grouped pins
OK
IPC-7351B Land Pattern107 pads · Pitch 0.85mm
OK
IPC-7525 60% Solder PasteEPAD 9.19×9.19mm windowed grid
OK
DFM Rules JLCPCB / PCBWayMin pad clearance: 0.25mm
OK
3D STEP AP214 & GLBAligned coordinate origin (0,0,0)
OK

Hardware Verification & Community Engineering Reviews

Summary of electrical parameters, mechanical dimensions, voltage range and peripheral interfaces from Datasheet
5.00 PCB Verified

Mechanical Dimensions & Land Pattern (CONN-SMD_ESP32-S31-WROOM-3)

Extracted from Datasheet & IPC-7351B Normalized
mm
Package Body (D × E)Nominal
30.00 × 22.00 mm
Height (A) & Pitch (e)IPC-7351B
A=3.10mm · e=0.85mm
Pad Size (W × L)Level B
0.40 × 0.80 mm
Pins / Total PadsTopology
99P / 107Pad (CASTELLATED_MODULE)

Recommended Companion BOM & Drop-In Equivalents

Passive external components per reference schematic and 1:1 pin-compatible alternatives
DFM READY
Designator / Replacement MPNValue / PackageFunction & PCB Layout Rule
C1, C2
BOM
22µF (or 10µF) X5R + 100nF X7R
0805 + 0402
3V3 supply decoupling for ~500mA Wi-Fi TX bursts — place closest to 3V3 pin; supply must deliver >= 600mA.
R_en + C_en
BOM
R = 10kΩ to 3V3 + C = 1µF to GND
0402 / 0603
Power-On Reset RC delay at EN (CHIP_PU) — 1µF capacitor at EN is REQUIRED for reliable cold boot.
R_boot + SW1
BOM
10kΩ Pull-up + BOOT button
0402 + SMD
Firmware boot-mode strap (IO0 on ESP32/S2/S3, IO9 on ESP32-C3) — on C3 pull IO8 high via 10kΩ for UART/USB download.
D_esd
BOM
USBLC6-2SC6 / LESD5D5.0CT1G
SOT-23-6 / SOD-523
ESD surge protection on USB D+/D- — place right next to USB Type-C connector before IO18/IO19/IO20.
ESP32-S3-MINI-1-N8 / 1U-N4R2
Espressif
100% Drop-inSame 15.4×15.4mm 65-pad footprint as ESP32-S2-MINI-2 — verify USB GPIO 19/20 pin mapping.

Technical Frequently Asked Questions (FAQ) — ESP32-S31-WROOM-3-N16R16V (CONN-SMD_ESP32-S31-WROOM-3)

Quick answers covering Pinout, IPC-7351B Land Pattern dimensions, and CAD export formats
IPC-7351B / IEEE-315

What is the Pinout and operating voltage specification of ESP32-S31-WROOM-3-N16R16V (CONN-SMD_ESP32-S31-WROOM-3)?

Manufactured by ESPRESSIF, the ESP32-S31-WROOM-3-N16R16V is housed in a CONN-SMD_ESP32-S31-WROOM-3 package with 99 pins and a 0.85 mm lead pitch. Key pins include: 1 (ANT: Multiplexed I/O & Peripheral Pin ANT (General)), 2 (VDDA3: Power Supply Input (VDDA3 — 3.3V VDD3P3 (3.0V ~ 3.6V))), 3 (VDDA4: Power Supply Input (VDDA4 — 3.3V VDD3P3 (3.0V ~ 3.6V))), 4 (CHIP_PU: System Enable & Hardware Reset (CHIP_PU)), 5 (XTAL 32K N/GPIO0__: Multiplexed I/O & Peripheral Pin XTAL 32K N/GPIO0__ (RTC/CLK)), 6 (XTAL 32K P/GPIO1__: Multiplexed I/O & Peripheral Pin XTAL 32K P/GPIO1__ (RTC/CLK)).

What are the IPC-7351B PCB Footprint dimensions for ESP32-S31-WROOM-3-N16R16V?

Normalized from the official datasheet mechanical drawing per IPC-7351B (Density Level B Nominal), ESP32-S31-WROOM-3-N16R16V (CONN-SMD_ESP32-S31-WROOM-3) has a nominal body envelope of 22.00 × 30.00 mm, pitch e = 0.85 mm, and 107 copper pads plus a central exposed thermal pad (EPAD) of 9.19 × 9.19 mm with a 60% IPC-7525 windowed solder paste grid.

Where can I download KiCad (.kicad_mod, .kicad_sym), Fusion 360 (.lbr), and 3D STEP models for ESP32-S31-WROOM-3-N16R16V?

You can download the verified open-hardware (CERN-OHL-P-2.0) CAD library bundle for ESP32-S31-WROOM-3-N16R16V (ESPRESSIF, CONN-SMD_ESP32-S31-WROOM-3) directly on this page, including KiCad 8 Footprints (.kicad_mod), Schematic Symbols (.kicad_sym), Autodesk Fusion 360 / Eagle (.lbr), and 3D STEP AP214 / WebGL GLB models.

Static Reference Appendix: Pinout Table (99 pins) & ESP32-S31-WROOM Family VariantsExpand static table
Pin #Signal NameElectrical TypeFunctional Description & Design Notes
1ANTRF_50OhmSignal terminal ANT (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: ANT. Supported peripheral buses: General.
2VDDA3Power_InPrimary positive power supply input (VDDA3) operating in the 3.3V VDD3P3 (3.0V ~ 3.6V) domain (Max rating: 3.6V).
3VDDA4Power_InPrimary positive power supply input (VDDA4) operating in the 3.3V VDD3P3 (3.0V ~ 3.6V) domain (Max rating: 3.6V).
4CHIP_PUDigital_IOChip enable and power-on reset control input (CHIP_PU): High enables the SoC; Low powers down the chip into reset.
5XTAL 32K N/GPIO0__Digital_IOSignal terminal XTAL 32K N/GPIO0__ (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: XTAL 32K N/GPIO0__. Supported peripheral buses: RTC/CLK.
6XTAL 32K P/GPIO1__Digital_IOSignal terminal XTAL 32K P/GPIO1__ (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: XTAL 32K P/GPIO1__. Supported peripheral buses: RTC/CLK.
7GPIO2Digital_IOSignal terminal GPIO2 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO2. Supported peripheral buses: General.
8GPIO3Digital_IOSignal terminal GPIO3 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO3. Supported peripheral buses: General.
9GPIO4Digital_IOSignal terminal GPIO4 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO4. Supported peripheral buses: General.
10GPIO5Digital_IOSignal terminal GPIO5 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO5. Supported peripheral buses: General.
11VDDPST_1Power_InPrimary positive power supply input (VDDPST_1) operating in the 3.3V VDD3P3 (3.0V ~ 3.6V) domain (Max rating: 3.6V).
12GPIO6Digital_IOSignal terminal GPIO6 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO6. Supported peripheral buses: General.
13GPIO7Digital_IOSignal terminal GPIO7 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO7. Supported peripheral buses: General.
14GPIO8Digital_IOSignal terminal GPIO8 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO8. Supported peripheral buses: General.
15GPIO9Digital_IOSignal terminal GPIO9 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO9. Supported peripheral buses: General.
16GPIO10Digital_IOSignal terminal GPIO10 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO10. Supported peripheral buses: General.
17GPIO11Digital_IOSignal terminal GPIO11 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO11. Supported peripheral buses: General.
18VREF_TOUCHAnalogSignal terminal VREF_TOUCH (Analog, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: VREF_TOUCH. Supported peripheral buses: General.
19GPIO12Digital_IOSignal terminal GPIO12 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO12. Supported peripheral buses: General.
20GPIO13Digital_IOSignal terminal GPIO13 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO13. Supported peripheral buses: General.
21GPIO14Digital_IOSignal terminal GPIO14 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO14. Supported peripheral buses: General.
22GPIO15Digital_IOSignal terminal GPIO15 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO15. Supported peripheral buses: General.
23GPIO16Digital_IOSignal terminal GPIO16 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO16. Supported peripheral buses: General.
24GPIO17Digital_IOSignal terminal GPIO17 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO17. Supported peripheral buses: General.
25GPIO18Digital_IOSignal terminal GPIO18 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO18. Supported peripheral buses: General.
26GPIO19Digital_IOSignal terminal GPIO19 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO19. Supported peripheral buses: General.
27SDIO_DATA0Digital_IOSignal terminal SDIO_DATA0 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: SDIO_DATA0. Supported peripheral buses: General.
28SDIO_DATA1Digital_IOSignal terminal SDIO_DATA1 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: SDIO_DATA1. Supported peripheral buses: General.
29SDIO_DATA2Digital_IOSignal terminal SDIO_DATA2 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: SDIO_DATA2. Supported peripheral buses: General.
30VDD_PSRAM1P81__Power_InPrimary positive power supply input (VDD_PSRAM1P81__) operating in the 3.3V VDD3P3 (3.0V ~ 3.6V) domain (Max rating: 3.6V).
31SDIO_DATA3Digital_IOSignal terminal SDIO_DATA3 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: SDIO_DATA3. Supported peripheral buses: General.
32SDIO_CLKDigital_IOSignal terminal SDIO_CLK (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: SDIO_CLK. Supported peripheral buses: General.
33SDIO_CMDDigital_IOSignal terminal SDIO_CMD (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: SDIO_CMD. Supported peripheral buses: General.
34VDD_PSRAM1P82__Power_InPrimary positive power supply input (VDD_PSRAM1P82__) operating in the 3.3V VDD3P3 (3.0V ~ 3.6V) domain (Max rating: 3.6V).
35VDD_LDO1P8_Power_InPrimary positive power supply input (VDD_LDO1P8_) operating in the 3.3V VDD3P3 (3.0V ~ 3.6V) domain (Max rating: 3.6V).
36SPICSDigital_IOSignal terminal SPICS (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: SPICS. Supported peripheral buses: SPI.
37SPIQDigital_IOSignal terminal SPIQ (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: SPIQ. Supported peripheral buses: SPI.
38SPIWPDigital_IOSignal terminal SPIWP (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: SPIWP. Supported peripheral buses: SPI.
39VDD_SPIPower_OutRegulated power output rail (VDD_SPI) operating in the 3.3V VDD3P3 (3.0V ~ 3.6V) domain (Max rating: 3.6V).
40SPIHDDigital_IOSignal terminal SPIHD (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: SPIHD. Supported peripheral buses: SPI.
41SPICLKDigital_IOSignal terminal SPICLK (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: SPICLK. Supported peripheral buses: SPI.
42SPIDDigital_IOSignal terminal SPID (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: SPID. Supported peripheral buses: SPI.
43VCCA/VDDPST_2Power_InPrimary positive power supply input (VCCA/VDDPST_2) operating in the 3.3V VDD3P3 (3.0V ~ 3.6V) domain (Max rating: 3.6V).
44USB_DPDigital_IOSignal terminal USB_DP (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: USB_DP. Supported peripheral buses: USB.
45USB_DMDigital_IOSignal terminal USB_DM (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: USB_DM. Supported peripheral buses: USB.
46GPIO33Digital_IOSignal terminal GPIO33 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO33. Supported peripheral buses: General.
47GPIO34Digital_IOSignal terminal GPIO34 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO34. Supported peripheral buses: General.
48GPIO35Digital_IOSignal terminal GPIO35 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO35. Supported peripheral buses: General.
49GPIO36Digital_IOSignal terminal GPIO36 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO36. Supported peripheral buses: General.
50GPIO37Digital_IOSignal terminal GPIO37 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO37. Supported peripheral buses: General.
51GPIO38Digital_IOSignal terminal GPIO38 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO38. Supported peripheral buses: General.
52GPIO39Digital_IOSignal terminal GPIO39 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO39. Supported peripheral buses: General.
53GPIO40Digital_IOSignal terminal GPIO40 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO40. Supported peripheral buses: General.
54VDDPST_3Power_InPrimary positive power supply input (VDDPST_3) operating in the 3.3V VDD3P3 (3.0V ~ 3.6V) domain (Max rating: 3.6V).
55GPIO42Digital_IOSignal terminal GPIO42 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO42. Supported peripheral buses: General.
56GPIO43Digital_IOSignal terminal GPIO43 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO43. Supported peripheral buses: General.
57GPIO44Digital_IOSignal terminal GPIO44 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO44. Supported peripheral buses: General.
58GPIO45Digital_IOSignal terminal GPIO45 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO45. Supported peripheral buses: General.
59GPIO46Digital_IOSignal terminal GPIO46 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO46. Supported peripheral buses: General.
60GPIO47Digital_IOSignal terminal GPIO47 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO47. Supported peripheral buses: General.
61GPIO48Digital_IOSignal terminal GPIO48 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO48. Supported peripheral buses: General.
62GPIO49Digital_IOSignal terminal GPIO49 (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: GPIO49. Supported peripheral buses: General.
63VREF_ADCAnalogSignal terminal VREF_ADC (I/O, 3.3V VDD3P3 (3.0V ~ 3.6V) domain). Multiplexed alternate functions: VREF_ADC. Supported peripheral buses: ADC.
64VDDPST_4Power_InPrimary positive power supply input (VDDPST_4) operating in the 3.3V VDD3P3 (3.0V ~ 3.6V) domain (Max rating: 3.6V).
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