ATXMEGA8E5-M4U (QFN-32-EP(4x4)) — Schematic Symbol, IPC-7351B Footprint & 3D STEP Model

Q: What is the Pinout and operating voltage specification of ATXMEGA8E5-M4U (QFN-32-EP(4x4))?

Manufactured by MICROCHIP, the ATXMEGA8E5-M4U is housed in a QFN-32-EP(4x4) package with 33 pins and a 0.40 mm lead pitch. Key pins include: 1 (GND: Ground Reference Pin (GND)), 2 (PA4: Multiplexed I/O & Peripheral Pin PA4 (General)), 3 (PA3: Multiplexed I/O & Peripheral Pin PA3 (General)), 4 (PA2: Multiplexed I/O & Peripheral Pin PA2 (General)), 5 (PA1: Multiplexed I/O & Peripheral Pin PA1 (General)), 6 (PA0: Multiplexed I/O & Peripheral Pin PA0 (General)).

Q: What are the IPC-7351B PCB Footprint dimensions for ATXMEGA8E5-M4U?

Normalized from the official datasheet mechanical drawing per IPC-7351B (Density Level B Nominal), ATXMEGA8E5-M4U (QFN-32-EP(4x4)) has a nominal body envelope of 4.00 × 4.00 mm, pitch e = 0.40 mm, and 33 copper pads plus a central exposed thermal pad (EPAD) of 2.80 × 2.80 mm with a 60% IPC-7525 windowed solder paste grid.

Q: Where can I download KiCad (.kicad_mod, .kicad_sym), Fusion 360 (.lbr), and 3D STEP models for ATXMEGA8E5-M4U?

You can download the verified open-hardware (CERN-OHL-P-2.0) CAD library bundle for ATXMEGA8E5-M4U (MICROCHIP, QFN-32-EP(4x4)) 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.

1. SYMBOL

2. 2D FOOTPRINT

3. 3D CAD MODEL

Package Body: 4.00mm × 4.00mm · Pitch: 0.40mm · Ruler Step: 1.00mmSynced <100ms

Synchronized Pinout (Symbol / 2D / 3D) (33/33)

Touch or hover any pin to highlight concurrently across Symbol, Footprint and 3D

Pin	Symbol	Type	Function (EN)
1	GND	GND	Ground Reference Pin (GND)
2	PA4	I/O	Multiplexed I/O & Peripheral Pin PA4 (General)
3	PA3	I/O	Multiplexed I/O & Peripheral Pin PA3 (General)
4	PA2	I/O	Multiplexed I/O & Peripheral Pin PA2 (General)
5	PA1	I/O	Multiplexed I/O & Peripheral Pin PA1 (General)
6	PA0	I/O	Multiplexed I/O & Peripheral Pin PA0 (General)
7	PDI	I/O	Multiplexed I/O & Peripheral Pin PDI (General)
8	PDI/RESET#	I	System Enable & Hardware Reset (PDI/RESET#)
9	PC7	I/O	Multiplexed I/O & Peripheral Pin PC7 (General)
10	PC6	I/O	Multiplexed I/O & Peripheral Pin PC6 (General)
11	PC5	I/O	Multiplexed I/O & Peripheral Pin PC5 (General)
12	PC4	I/O	Multiplexed I/O & Peripheral Pin PC4 (General)
13	PC3	I/O	Multiplexed I/O & Peripheral Pin PC3 (General)
14	PC2	I/O	Multiplexed I/O & Peripheral Pin PC2 (General)
15	PC1	I/O	Multiplexed I/O & Peripheral Pin PC1 (General)
16	PC0	I/O	Multiplexed I/O & Peripheral Pin PC0 (General)
17	VCC	Power	Power Supply Input (VCC — 3.3V / 5.0V Standard Logic)
18	GND	GND	Ground Reference Pin (GND)
19	PR1	I/O	Multiplexed I/O & Peripheral Pin PR1 (General)
20	PR0	I/O	Multiplexed I/O & Peripheral Pin PR0 (General)
21	PD7	I/O	Multiplexed I/O & Peripheral Pin PD7 (General)
22	PD6	I/O	Multiplexed I/O & Peripheral Pin PD6 (General)
23	PD5	I/O	Multiplexed I/O & Peripheral Pin PD5 (General)
24	PD4	I/O	Multiplexed I/O & Peripheral Pin PD4 (General)
25	PD3	I/O	Multiplexed I/O & Peripheral Pin PD3 (General)
26	PD2	I/O	Multiplexed I/O & Peripheral Pin PD2 (General)
27	PD1	I/O	Multiplexed I/O & Peripheral Pin PD1 (General)
28	PD0	I/O	Multiplexed I/O & Peripheral Pin PD0 (General)
29	PA7	I/O	Multiplexed I/O & Peripheral Pin PA7 (General)
30	PA6	I/O	Multiplexed I/O & Peripheral Pin PA6 (General)
31	PA5	I/O	Multiplexed I/O & Peripheral Pin PA5 (General)
32	AVCC	Power	Power Supply Input (AVCC — 3.3V / 5.0V Standard Logic)
33	EPAD	GND	Exposed Thermal & Ground Pad (EPAD)

PIN 1 GND

GND

Ground Reference Pin (GND)

Design note: 0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks.

IPC-7351B Solder Density & Span C/G/Z Tuner

Extracted Drawings Gallery (6 Standard Drawings + 7 Extracted Figures)

Read the original datasheet PDF directly or click any drawing to view fullscreen

1. Realistic 3D PackageREPRESENTATIVE

ATXMEGA8E5-M4U (QFN-32-EP(4x4)) - 1. Realistic 3D Package

Detailed solid 3D bodyExpand ›

2. Standard Pinout (Top View)CLEANROOM PINOUT

ATXMEGA8E5-M4U (QFN-32-EP(4x4)) - 2. Standard Pinout (Top View)

True package pinout (33 pins)Expand ›

3. Original Datasheet PinoutPDF PINOUT

ATXMEGA8E5-M4U (QFN-32-EP(4x4)) - 3. Original Datasheet Pinout

Uncropped datasheet pin diagramExpand ›

4. Package Dimensions (D×E×A)PACKAGE DIMENSIONS

ATXMEGA8E5-M4U (QFN-32-EP(4x4)) - 4. Package Dimensions (D×E×A)

QFN-32-EP(4x4) · 4.00×4.00mm · Pitch 0.40mmExpand ›

5. Recommended Land PatternLAND PATTERN

ATXMEGA8E5-M4U (QFN-32-EP(4x4)) - 5. Recommended Land Pattern

IPC-7351B Footprint (33 Pads)Expand ›

6. Application SchematicSCHEMATIC

ATXMEGA8E5-M4U (QFN-32-EP(4x4)) - 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 ATXMEGA8E5 / ATXMEGA32E5

P4 · p04_fig011981×2068px

Notes: 1. For full details on pinout and alternate pin functions refer to “Pinout and Pin Functions” on page 57.

P21 · p21_fig011862×1798px

Figure 11-1. The Clock System, Clock Sources, and Clock Distribution

P21 · p21_fig01P21

Datasheet Page 21 (p21_fig01)

P57 · p57_fig012040×505px

32.1.4 Timer/Counter and WEX Functions

P57 · p57_fig022039×574px

57 XMEGA E5 [DATASHEET]

P68 · p68_fig012038×2425px

68 XMEGA E5 [DATASHEET]

P68 · p68_fig01P68

Datasheet Page 68 (p68_fig01)

Technical Specifications & Part Details (ATXMEGA8E5-M4U)

Summary of electrical parameters, mechanical dimensions, voltage range and peripheral interfaces from Datasheet (EN)

Standard Electronic & Interconnect Component

Detailed Overview:ATXMEGA8E5-M4U (QFN-32-EP(4x4)) is a 32-pin standard electronic & interconnect component featuring a 4.00 × 4.00 × 0.85 mm mechanical envelope (lead pitch e = 0.40 mm). Rated for 1.8V ~ 5.5V (Theo Datasheet) supply operation across -40°C ~ +85°C (Industrial Grade) with integrated UART, SPI, I2C, ADC, PWM interfaces.

Operating Supply VoltageV_CC / V_DD

1.8V ~ 5.5V (Theo Datasheet)

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

8MHz

Extracted from authoritative PDF specification tables

Current & Power RatingI_OUT / I_CC

I_GPIO(max) = ±20 mA / pin | I_VDD(total) ≤ 150 mA

Observe per-pin absolute maximum current limits

Package Envelope (D × E × A)D × E × A

4.00 × 4.00 × 0.85 mm (A1=0.03 mm)

Package family: QFN (QFN-32-EP(4x4))

Pin Count & Lead PitchN / e

32 Pins | Pitch e = 0.40 mm (15.7 mil)

Normalized to Center-to-Center Span C per IPC-7351B

Integrated Peripheral InterfacesBuses

UART, SPI, I2C, ADC, PWM

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: Verify Pin-1 chamfer orientation on Top Silkscreen prior to SMT pick-and-place assembly.

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 Symbol33 auto-grouped pins

IPC-7351B Land Pattern33 pads · Pitch 0.40mm

IPC-7525 60% Solder PasteEPAD 2.80×2.80mm windowed grid

DFM Rules JLCPCB / PCBWayMin pad clearance: 0.25mm

3D STEP AP214 & GLBAligned coordinate origin (0,0,0)

Hardware Verification & Community Engineering Reviews

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

5.00 PCB Verified

IPC-7351B

Family Variants & Same Datasheet Chips — ATXMEGA8E5 / ATXMEGA32E5 (2)

Select package variant or sibling MPN sharing this datasheet

QFN-32-EP(4x4) · 33P

ATXMEGA8E5-M4U

MICROCHIP·QFN-32-EP(4x4)

IPC-7351B

33P4.0×4.0×0.85mmP=0.4mm

ATXMEGA8E5 / ATXMEGA32E5 (QFN-32-EP(4x4))

QFN-32-EP(5x5) · 33P

ATXMEGA32E5-M4U

MICROCHIP·QFN-32-EP(5x5)

IPC-7351B

33P5.0×5.0×1.00mmP=0.5mm

ATXMEGA8E5 / ATXMEGA32E5 (QFN-32-EP(5x5))

Mechanical Dimensions & Land Pattern (QFN-32-EP(4x4))

Extracted from Datasheet & IPC-7351B Normalized

Package Body (D × E)Nominal

4.00 × 4.00 mm

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

A=0.85mm · e=0.40mm

Pad Size (W × L)Level B

0.22 × 0.80 mm

Pins / Total PadsTopology

33P / 33Pad (QUAD_ROW)

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 QFN-32-EP(4x4)	Size power & signal trace widths for rated load current following IPC-2221 clearance rules.

Technical Frequently Asked Questions (FAQ) — ATXMEGA8E5-M4U (QFN-32-EP(4x4))

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 ATXMEGA8E5-M4U (QFN-32-EP(4x4))?

Manufactured by MICROCHIP, the ATXMEGA8E5-M4U is housed in a QFN-32-EP(4x4) package with 33 pins and a 0.40 mm lead pitch. Key pins include: 1 (GND: Ground Reference Pin (GND)), 2 (PA4: Multiplexed I/O & Peripheral Pin PA4 (General)), 3 (PA3: Multiplexed I/O & Peripheral Pin PA3 (General)), 4 (PA2: Multiplexed I/O & Peripheral Pin PA2 (General)), 5 (PA1: Multiplexed I/O & Peripheral Pin PA1 (General)), 6 (PA0: Multiplexed I/O & Peripheral Pin PA0 (General)).

What are the IPC-7351B PCB Footprint dimensions for ATXMEGA8E5-M4U?

Normalized from the official datasheet mechanical drawing per IPC-7351B (Density Level B Nominal), ATXMEGA8E5-M4U (QFN-32-EP(4x4)) has a nominal body envelope of 4.00 × 4.00 mm, pitch e = 0.40 mm, and 33 copper pads plus a central exposed thermal pad (EPAD) of 2.80 × 2.80 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 ATXMEGA8E5-M4U?

You can download the verified open-hardware (CERN-OHL-P-2.0) CAD library bundle for ATXMEGA8E5-M4U (MICROCHIP, QFN-32-EP(4x4)) 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 (33 pins) & ATXMEGA8E5 / ATXMEGA32E5 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	PA4	Digital_IO	Signal terminal PA4 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PA4. Supported peripheral buses: General.
3	PA3	Digital_IO	Signal terminal PA3 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PA3. Supported peripheral buses: General.
4	PA2	Digital_IO	Signal terminal PA2 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PA2. Supported peripheral buses: General.
5	PA1	Digital_IO	Signal terminal PA1 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PA1. Supported peripheral buses: General.
6	PA0	Digital_IO	Signal terminal PA0 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PA0. Supported peripheral buses: General.
7	PDI	Digital_IO	Signal terminal PDI (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PDI. Supported peripheral buses: General.
8	PDI/RESET#	Digital_IO	Active-low hardware reset terminal (PDI/RESET#): pulling this pin Low resets the processor core and peripherals.
9	PC7	Digital_IO	Signal terminal PC7 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PC7. Supported peripheral buses: General.
10	PC6	Digital_IO	Signal terminal PC6 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PC6. Supported peripheral buses: General.
11	PC5	Digital_IO	Signal terminal PC5 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PC5. Supported peripheral buses: General.
12	PC4	Digital_IO	Signal terminal PC4 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PC4. Supported peripheral buses: General.
13	PC3	Digital_IO	Signal terminal PC3 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PC3. Supported peripheral buses: General.
14	PC2	Digital_IO	Signal terminal PC2 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PC2. Supported peripheral buses: General.
15	PC1	Digital_IO	Signal terminal PC1 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PC1. Supported peripheral buses: General.
16	PC0	Digital_IO	Signal terminal PC0 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PC0. Supported peripheral buses: General.
17	VCC	Power_In	Primary positive power supply input (VCC) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V).
18	GND	GND	0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks.
19	PR1	Digital_IO	Signal terminal PR1 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PR1. Supported peripheral buses: General.
20	PR0	Digital_IO	Signal terminal PR0 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PR0. Supported peripheral buses: General.
21	PD7	Digital_IO	Signal terminal PD7 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PD7. Supported peripheral buses: General.
22	PD6	Digital_IO	Signal terminal PD6 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PD6. Supported peripheral buses: General.
23	PD5	Digital_IO	Signal terminal PD5 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PD5. Supported peripheral buses: General.
24	PD4	Digital_IO	Signal terminal PD4 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PD4. Supported peripheral buses: General.
25	PD3	Digital_IO	Signal terminal PD3 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PD3. Supported peripheral buses: General.
26	PD2	Digital_IO	Signal terminal PD2 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PD2. Supported peripheral buses: General.
27	PD1	Digital_IO	Signal terminal PD1 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PD1. Supported peripheral buses: General.
28	PD0	Digital_IO	Signal terminal PD0 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PD0. Supported peripheral buses: General.
29	PA7	Digital_IO	Signal terminal PA7 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PA7. Supported peripheral buses: General.
30	PA6	Digital_IO	Signal terminal PA6 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PA6. Supported peripheral buses: General.
31	PA5	Digital_IO	Signal terminal PA5 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PA5. Supported peripheral buses: General.
32	AVCC	Power_In	Primary positive power supply input (AVCC) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V).
33	EPAD	GND	Bottom exposed die attach pad (EPAD) providing primary thermal conduction path to the PCB and low-inductance 0V ground return.

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