ESP8684-MINI-1U-H4 (SMD,13.2x12.5mm) — Schematic Symbol, IPC-7351B Footprint & 3D STEP Model

Pin	Symbol	Type	Function (EN)
1	GND	GND	Ground Reference Pin (GND)
2	GND	GND	Ground Reference Pin (GND)
3	3V3	Power	Power Supply Input (3V3 — 3.0 ~ 3.6 V)
4	NC	I/O	Multiplexed I/O & Peripheral Pin NC (General)
5	IO2	I/O	Multiplexed I/O & Peripheral Pin IO2 (SPI, ADC)
6	IO3	I/O	Multiplexed I/O & Peripheral Pin IO3 (ADC)
7	NC	I/O	Multiplexed I/O & Peripheral Pin NC (General)
8	EN	I	System Enable & Hardware Reset (EN)
9	NC	I/O	Multiplexed I/O & Peripheral Pin NC (General)
10	NC	I/O	Multiplexed I/O & Peripheral Pin NC (General)
11	GND	GND	Ground Reference Pin (GND)
12	IO0	I/O	Multiplexed I/O & Peripheral Pin IO0 (ADC)
13	IO1	I/O	Multiplexed I/O & Peripheral Pin IO1 (ADC)
14	GND	GND	Ground Reference Pin (GND)
15	NC	I/O	Multiplexed I/O & Peripheral Pin NC (General)
16	IO10	I/O	Multiplexed I/O & Peripheral Pin IO10 (SPI)
17	NC	I/O	Multiplexed I/O & Peripheral Pin NC (General)
18	IO4	I/O	Multiplexed I/O & Peripheral Pin IO4 (SPI, ADC, SWD/JTAG)
19	IO5	I/O	Multiplexed I/O & Peripheral Pin IO5 (SPI, SWD/JTAG)
20	IO6	I/O	Multiplexed I/O & Peripheral Pin IO6 (SPI, SWD/JTAG)
21	IO7	I/O	Multiplexed I/O & Peripheral Pin IO7 (SPI, SWD/JTAG)
22	IO8	I/O	Multiplexed I/O & Peripheral Pin IO8 (General)
23	IO9	I/O	Multiplexed I/O & Peripheral Pin IO9 (General)
24	NC	I/O	Multiplexed I/O & Peripheral Pin NC (General)
25	NC	I/O	Multiplexed I/O & Peripheral Pin NC (General)
26	IO18	I/O	Multiplexed I/O & Peripheral Pin IO18 (General)
27	NC	I/O	Multiplexed I/O & Peripheral Pin NC (General)
28	NC	I/O	Multiplexed I/O & Peripheral Pin NC (General)
29	NC	I/O	Multiplexed I/O & Peripheral Pin NC (General)
30	RXD0	I/O	Multiplexed I/O & Peripheral Pin RXD0 (UART)
31	TXD0	I/O	Multiplexed I/O & Peripheral Pin TXD0 (UART)
32	NC	I/O	Multiplexed I/O & Peripheral Pin NC (General)
33	NC	I/O	Multiplexed I/O & Peripheral Pin NC (General)
34	NC	I/O	Multiplexed I/O & Peripheral Pin NC (General)
35	NC	I/O	Multiplexed I/O & Peripheral Pin NC (General)
36	GND	GND	Ground Reference Pin (GND)
37	GND	GND	Ground Reference Pin (GND)
38	GND	GND	Ground Reference Pin (GND)
39	GND	GND	Exposed Thermal & Ground Pad (GND)
40	GND	GND	Ground Reference Pin (GND)
41	GND	GND	Ground Reference Pin (GND)
42	GND	GND	Ground Reference Pin (GND)
43	GND	GND	Ground Reference Pin (GND)
44	GND	GND	Ground Reference Pin (GND)
45	GND	GND	Ground Reference Pin (GND)
46	GND	GND	Ground Reference Pin (GND)
47	GND	GND	Ground Reference Pin (GND)
48	GND	GND	Ground Reference Pin (GND)
49	GND	GND	Exposed Thermal & Ground Pad (GND)
50	GND	GND	Ground Reference Pin (GND)
51	GND	GND	Ground Reference Pin (GND)
52	GND	GND	Ground Reference Pin (GND)
53	GND	GND	Ground Reference Pin (GND)
54	GND	GND	Ground Reference Pin (GND)
55	GND	GND	Ground Reference Pin (GND)
56	GND	GND	Ground Reference Pin (GND)
57	GND	GND	Exposed Thermal & Ground Pad (GND)
58	GND	GND	Ground Reference Pin (GND)
59	GND	GND	Ground Reference Pin (GND)
60	GND	GND	Ground Reference Pin (GND)
61	GND	GND	Ground Reference Pin (GND)

Mechanical Dimensions & Land Pattern (SMD,13.2x12.5mm)

Extracted from Datasheet & IPC-7351B Normalized

Package Body (D × E)Nominal

13.20 × 12.50 mm

Height (A) & Pitch (e)IPC-7351B

A=2.40mm · e=0.80mm

Pad Size (W × L)Level B

0.50 × 1.00 mm

Pins / Total PadsTopology

61P / 61Pad (CASTELLATED_MODULE)

Recommended Companion BOM & Drop-In Equivalents

Passive external components per reference schematic and 1:1 pin-compatible alternatives

DFM READY

Designator / Replacement MPN	Value / Package	Function & PCB Layout Rule
N/A BOM	Per application circuit SMD,13.2x12.5mm	Size power & signal trace widths for rated load current following IPC-2221 clearance rules.

Technical Frequently Asked Questions (FAQ) — ESP8684-MINI-1U-H4 (SMD,13.2x12.5mm)

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 ESP8684-MINI-1U-H4 (SMD,13.2x12.5mm)?

Manufactured by ESPRESSIF, the ESP8684-MINI-1U-H4 is housed in a SMD,13.2x12.5mm package with 61 pins and a 0.80 mm lead pitch, supporting a VCC supply range of 3.0 ~ 3.6 V. Key pins include: 1 (GND: Ground Reference Pin (GND)), 2 (GND: Ground Reference Pin (GND)), 3 (3V3: Power Supply Input (3V3 — 3.0 ~ 3.6 V)), 4 (NC: Multiplexed I/O & Peripheral Pin NC (General)), 5 (IO2: Multiplexed I/O & Peripheral Pin IO2 (SPI, ADC)), 6 (IO3: Multiplexed I/O & Peripheral Pin IO3 (ADC)).

What are the IPC-7351B PCB Footprint dimensions for ESP8684-MINI-1U-H4?

Normalized from the official datasheet mechanical drawing per IPC-7351B (Density Level B Nominal), ESP8684-MINI-1U-H4 (SMD,13.2x12.5mm) has a nominal body envelope of 12.50 × 13.20 mm, pitch e = 0.80 mm, and 61 copper pads.

Where can I download KiCad (.kicad_mod, .kicad_sym), Fusion 360 (.lbr), and 3D STEP models for ESP8684-MINI-1U-H4?

You can download the verified open-hardware (CERN-OHL-P-2.0) CAD library bundle for ESP8684-MINI-1U-H4 (ESPRESSIF, SMD,13.2x12.5mm) 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 (61 pins) & ESP8684-MINI Family VariantsExpand static table

Pin #	Signal Name	Electrical Type	Functional Description & Design Notes
1	GND	GND	0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks.
2	GND	GND	0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks.
3	3V3	Power_In	Primary positive power supply input (3V3) operating in the 3.0 ~ 3.6 V domain (Max rating: 3.6V).
4	NC	NC	Signal terminal NC (I/O, 3.0 ~ 3.6 V domain). Multiplexed alternate functions: NC. Supported peripheral buses: General.
5	IO2	Digital_IO	Signal terminal IO2 (I/O, 3.0 ~ 3.6 V domain). Multiplexed alternate functions: GPIO2, ADC1_CH2, FSPIQ. Supported peripheral buses: SPI, ADC.
6	IO3	Digital_IO	Signal terminal IO3 (I/O, 3.0 ~ 3.6 V domain). Multiplexed alternate functions: GPIO3, ADC1_CH3. Supported peripheral buses: ADC.
7	NC	NC	Signal terminal NC (I/O, 3.0 ~ 3.6 V domain). Multiplexed alternate functions: NC. Supported peripheral buses: General.
8	EN	Digital_IO	Chip enable and power-on reset control input (EN): High enables the SoC; Low powers down the chip into reset.
9	NC	NC	Signal terminal NC (I/O, 3.0 ~ 3.6 V domain). Multiplexed alternate functions: NC. Supported peripheral buses: General.
10	NC	NC	Signal terminal NC (I/O, 3.0 ~ 3.6 V domain). Multiplexed alternate functions: NC. Supported peripheral buses: General.
11	GND	GND	0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks.
12	IO0	Digital_IO	Signal terminal IO0 (I/O, 3.0 ~ 3.6 V domain). Multiplexed alternate functions: GPIO0, ADC1_CH0. Supported peripheral buses: ADC.
13	IO1	Digital_IO	Signal terminal IO1 (I/O, 3.0 ~ 3.6 V domain). Multiplexed alternate functions: GPIO1, ADC1_CH1. Supported peripheral buses: ADC.
14	GND	GND	0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks.
15	NC	NC	Signal terminal NC (I/O, 3.0 ~ 3.6 V domain). Multiplexed alternate functions: NC. Supported peripheral buses: General.
16	IO10	Digital_IO	Signal terminal IO10 (I/O, 3.0 ~ 3.6 V domain). Multiplexed alternate functions: GPIO10, FSPICS0. Supported peripheral buses: SPI.
17	NC	NC	Signal terminal NC (I/O, 3.0 ~ 3.6 V domain). Multiplexed alternate functions: NC. Supported peripheral buses: General.
18	IO4	Digital_IO	Signal terminal IO4 (I/O, 3.0 ~ 3.6 V domain). Multiplexed alternate functions: GPIO4, ADC1_CH4, FSPIHD, MTMS. Supported peripheral buses: SPI, ADC, SWD/JTAG.
19	IO5	Digital_IO	Signal terminal IO5 (I/O, 3.0 ~ 3.6 V domain). Multiplexed alternate functions: GPIO5, FSPIWP, MTDI. Supported peripheral buses: SPI, SWD/JTAG.
20	IO6	Digital_IO	Signal terminal IO6 (I/O, 3.0 ~ 3.6 V domain). Multiplexed alternate functions: GPIO6, FSPICLK, MTCK. Supported peripheral buses: SPI, SWD/JTAG.
21	IO7	Digital_IO	Signal terminal IO7 (I/O, 3.0 ~ 3.6 V domain). Multiplexed alternate functions: GPIO7, FSPID, MTDO. Supported peripheral buses: SPI, SWD/JTAG.
22	IO8	Digital_IO	Signal terminal IO8 (I/O, 3.0 ~ 3.6 V domain). Multiplexed alternate functions: GPIO8. Supported peripheral buses: General.
23	IO9	Digital_IO	Signal terminal IO9 (I/O, 3.0 ~ 3.6 V domain). Multiplexed alternate functions: GPIO9. Supported peripheral buses: General.
24	NC	NC	Signal terminal NC (I/O, 3.0 ~ 3.6 V domain). Multiplexed alternate functions: NC. Supported peripheral buses: General.
25	NC	NC	Signal terminal NC (I/O, 3.0 ~ 3.6 V domain). Multiplexed alternate functions: NC. Supported peripheral buses: General.
26	IO18	Digital_IO	Signal terminal IO18 (I/O, 3.0 ~ 3.6 V domain). Multiplexed alternate functions: GPIO18. Supported peripheral buses: General.
27	NC	NC	Signal terminal NC (I/O, 3.0 ~ 3.6 V domain). Multiplexed alternate functions: NC. Supported peripheral buses: General.
28	NC	NC	Signal terminal NC (I/O, 3.0 ~ 3.6 V domain). Multiplexed alternate functions: NC. Supported peripheral buses: General.
29	NC	NC	Signal terminal NC (I/O, 3.0 ~ 3.6 V domain). Multiplexed alternate functions: NC. Supported peripheral buses: General.
30	RXD0	Digital_IO	Signal terminal RXD0 (I/O, 3.0 ~ 3.6 V domain). Multiplexed alternate functions: GPIO19, U0RXD. Supported peripheral buses: UART.
31	TXD0	Digital_IO	Signal terminal TXD0 (I/O, 3.0 ~ 3.6 V domain). Multiplexed alternate functions: GPIO20, U0TXD. Supported peripheral buses: UART.
32	NC	NC	Signal terminal NC (I/O, 3.0 ~ 3.6 V domain). Multiplexed alternate functions: NC. Supported peripheral buses: General.
33	NC	NC	Signal terminal NC (I/O, 3.0 ~ 3.6 V domain). Multiplexed alternate functions: NC. Supported peripheral buses: General.
34	NC	NC	Signal terminal NC (I/O, 3.0 ~ 3.6 V domain). Multiplexed alternate functions: NC. Supported peripheral buses: General.
35	NC	NC	Signal terminal NC (I/O, 3.0 ~ 3.6 V domain). Multiplexed alternate functions: NC. Supported peripheral buses: General.
36	GND	GND	0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks.
37	GND	GND	0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks.
38	GND	GND	0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks.
39	GND	GND	Bottom exposed die attach pad (GND) providing primary thermal conduction path to the PCB and low-inductance 0V ground return.
40	GND	GND	0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks.
41	GND	GND	0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks.
42	GND	GND	0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks.
43	GND	GND	0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks.
44	GND	GND	0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks.
45	GND	GND	0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks.
46	GND	GND	0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks.
47	GND	GND	0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks.
48	GND	GND	0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks.
49	GND	GND	Bottom exposed die attach pad (GND) providing primary thermal conduction path to the PCB and low-inductance 0V ground return.
50	GND	GND	0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks.
51	GND	GND	0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks.
52	GND	GND	0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks.
53	GND	GND	0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks.
54	GND	GND	0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks.
55	GND	GND	0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks.
56	GND	GND	0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks.
57	GND	GND	Bottom exposed die attach pad (GND) providing primary thermal conduction path to the PCB and low-inductance 0V ground return.
58	GND	GND	0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks.
59	GND	GND	0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks.
60	GND	GND	0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks.
61	GND	GND	0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks.

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ESP8684-MINI-1U-H4

Synchronized Pinout (Symbol / 2D / 3D) (61/61)

Live Embedded Datasheet PDF & Technical Drawing Gallery (6 Standard Drawings + 19 Extracted Figures)

Technical Specifications & Part Details (ESP8684-MINI-1U-H4)

5-Point Standards Verification

Hardware Verification & Community Engineering Reviews