ATXMEGA32E5-MUR from Microchip Tech, in a VQFN-32-EP(5x5). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	GND	power_in	Ground.
2	PA4	bidirectional	Port A pin 4 general purpose I/O with ADC input 4 (positive/negative) and analog comparator AC4 input.
3	PA3	bidirectional	Port A pin 3 general purpose I/O with ADC input 3, DAC1 output and analog comparator AC3 input.
4	PA2	bidirectional	Port A pin 2 general purpose I/O with ADC input 2, DAC0 output and analog comparator AC2 input.
5	PA1	bidirectional	Port A pin 1 general purpose I/O with ADC input 1 and analog comparator AC1 input.
6	PA0	bidirectional	Port A pin 0 general purpose I/O with ADC input 0, analog comparator AC0 input and AREF analog reference input.
7	PDI	bidirectional	Program and Debug Interface data pin (PDI_DATA).
8	RESET	input	Reset pin, also used as the Program and Debug Interface clock input (PDI_CLK).
9	PC7	bidirectional	Port C pin 7 general purpose I/O with OC4D/OC4DHS, TXD0, SPI MOSI, XCL IN3 and AC0OUT alternate functions.
10	PC6	bidirectional	Port C pin 6 general purpose I/O with OC4C/OC4DLS, RXD0, SPI MISO, XCL IN0 and AC1OUT alternate functions.
11	PC5	bidirectional	Port C pin 5 general purpose I/O with OC4B/OC4CHS, OC5B, XCK0, SPI SCK and XCL IN2 alternate functions.
12	PC4	bidirectional	Port C pin 4 general purpose I/O with OC4A/OC4CLS, OC5A, SPI SS, XCL IN1/OUT0 and EXTCLK alternate functions.
13	PC3	bidirectional	Port C pin 3 general purpose I/O with OC4D/OC4BHS, TXD0 and XCL IN3 alternate functions.
14	PC2	bidirectional	Port C pin 2 general purpose I/O with OC4C/OC4BLS, RXD0 and XCL IN0 alternate functions.
15	PC1	bidirectional	Port C pin 1 general purpose I/O with OC4B/OC4AHS, XCK0, TWI SCL and XCL IN2 alternate functions.
16	PC0	bidirectional	Port C pin 0 general purpose I/O with OC4A/OC4ALS, TWI SDA and XCL IN1/OUT0 alternate functions.
17	GND	power_in	Ground.
18	VCC	power_in	Digital supply voltage.
19	PR1	bidirectional	Port R pin 1 general purpose I/O with XTAL1/TOSC1 oscillator, EXTCLK input and AC0 OUT alternate functions.
20	PR0	bidirectional	Port R pin 0 general purpose I/O with XTAL2/TOSC2 oscillator, CLKOUT, EVOUT, RTCOUT and AC1 OUT alternate functions.
21	PD7	bidirectional	Port D pin 7 general purpose I/O with ADC15, TXD0, XCL IN3, CLKOUT, EVOUT and AC0OUT alternate functions.
22	PD6	bidirectional	Port D pin 6 general purpose I/O with ADC14, RXD0, XCL IN0, RTCOUT and AC1OUT alternate functions.
23	PD5	bidirectional	Port D pin 5 general purpose I/O with ADC13, OC5B, XCK0 and XCL IN2 alternate functions.
24	PD4	bidirectional	Port D pin 4 general purpose I/O with ADC12, OC5A, XCL IN1/OUT0, CLKOUT and EVOUT alternate functions.
25	PD3	bidirectional	Port D pin 3 general purpose I/O with ADC11, TXD0, XCL IN3 and OC1 alternate functions.
26	PD2	bidirectional	Port D pin 2 general purpose I/O with ADC10, RXD0, XCL IN0 and OC0 alternate functions.
27	PD1	bidirectional	Port D pin 1 general purpose I/O with ADC9, XCK0, TWI SCL and XCL IN2 alternate functions.
28	PD0	bidirectional	Port D pin 0 general purpose I/O with ADC8, TWI SDA, XCL IN1/OUT0 and AREF alternate functions.
29	PA7	bidirectional	Port A pin 7 general purpose I/O with ADC input 7, analog comparator AC7 input and AC0OUT alternate functions.
30	PA6	bidirectional	Port A pin 6 general purpose I/O with ADC input 6, analog comparator AC6 input and AC1OUT alternate functions.
31	PA5	bidirectional	Port A pin 5 general purpose I/O with ADC input 5 and analog comparator AC5 input.
32	AVCC	power_in	Analog supply voltage.
33	EP	passive	Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter	Value
Manufacturer	Microchip Tech
Package	VQFN-32-EP(5x5)
Category	Embedded Processors & Controllers
Pins	33

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter	Symbol	Min	Typ	Max	Unit	Conditions	Page
Power supply voltage (abs max)	VCC	-0.3		4	V		71
Current into a VCC pin	IVCC			200	mA		71
Current out of a Gnd pin	IGND			200	mA		71
I/O pin sink/source current	IPIN	-25		25	mA		71
Storage temperature	TA	-65		150	°C		71
Junction temperature (abs max)	Tj			150	°C		71
Power supply voltage	VCC	1.6		3.6	V		71
Analog supply voltage	AVCC	1.6		3.6	V		71
Temperature range	TA	-40		85	°C		71
Junction temperature	Tj	-40		105	°C		71
CPU clock frequency	ClkCPU	0		12	MHz	VCC = 1.6V	71
CPU clock frequency	ClkCPU	0		32	MHz	VCC = 2.7V	71
I/O pin source/sink current	IOH/IOL	-15		15	mA		76
High level output voltage	VOH	2.6	3.1		V	VCC = 3.3V IOH = -4mA	76
High level output voltage	VOH	2.1	2.7		V	VCC = 3.0V IOH = -3mA	76
High level output voltage	VOH	1.4	1.7		V	VCC = 1.8V IOH = -1mA	76
Low level output voltage	VOL		0.2	0.76	V	VCC = 3.3V IOL = 8mA	76
Low level output voltage	VOL		0.15	0.64	V	VCC = 3.0V IOL = 5mA	76
Low level output voltage	VOL		0.1	0.46	V	VCC = 1.8V IOL = 3mA	76
Input leakage current	IIN		0.01	1	µA	T = 25°C	76
Pull/bus keeper resistor	RP		27		kΩ		76
ADC clock frequency	ClkADC	100		1800	kHz	Maximum is 1/4 of Peripheral clock frequency	77
ADC sample rate	fClkADC	16		300	ksps		77
DAC conversion rate, normal mode	fDAC	0		1000	ksps	Cload=100pF, maximum step size, Normal mode	79
DAC conversion rate, low power mode	fDAC	0		500	ksps	Cload=100pF, maximum step size, Low power mode	79
Comparator input offset voltage	Voff			10	mV		80
Comparator input leakage current	Ilk		10	50	nA		80
Comparator hysteresis, small	Vhys2		12		mV	VCC = 1.6V - 3.6V	80
Comparator hysteresis, large	Vhys3		28		mV	VCC = 1.6V - 3.6V	80
Comparator propagation delay	tdelay		22	30	ns	VCC = 3.0V, T= 85°C	80
Comparator propagation delay	tdelay		21	40	ns	VCC = 1.6V - 3.6V	80
Internal 1.00V reference	INT1V	0.99	1	1.01	V	T= 25°C, after calibration	81
INT1V variation over voltage and temperature	INT1V	-3		3	%	Calibrated at T= 25°C	81
BOD level 0	VBOT	1.5	1.65	1.75	V	BOD level 0 falling VCC	81
Flash data retention		100			Year	25°C	82
Flash data retention		25			Year	85°C	82
EEPROM data retention		100			Year	25°C	82
EEPROM data retention		25			Year	85°C	82
32.768kHz oscillator factory calibration accuracy		-0.5		0.5	%	T = 25°C, VCC = 3.0V	84
8MHz oscillator factory calibration accuracy		-0.5		0.5	%	T = 25°C, VCC = 3.0V	84
32MHz oscillator factory calibration accuracy		-1.5		1.5	%	T = 25°C, VCC = 3.0V	84
32MHz oscillator user calibration accuracy		-0.2		0.2	%		84
32kHz ULP oscillator accuracy		-30		30	%		84
PLL output frequency	fOUT	20		128	MHz	VCC= 2.7 - 3.6V	85
TWI output low voltage	VOL	0		0.4	V	3mA, sink current	91
TWI input current for each I/O pin	II	-10		10	µA	0.1 VCC <VI <0.9 VCC	91
TWI SCL clock frequency	fSCL	0		1	MHz	fPER > max(10fSCL,250kHz)	91

CAD (KiCad official)

Symbol: ATXMEGA32E5-MUR
Footprint: Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.3x3.3mm
3D model: VQFN-32-EP(5x5) (KiCad packages3D, STEP)
3D model files: atxmega32e5-mur-etched.step / atxmega32e5-mur-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); atxmega32e5-mur.step / atxmega32e5-mur.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: Microchip Tech datasheet (147 pp, sha256 5d53027d2c920682, retrieved 2026-10-30, tier: manufacturer)
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF

ATXMEGA32E5-MUR

Verified ATXMEGA32E5-MUR

Verification log 1 record

3D Model

Symbol & Footprint

Schematic Symbol

PCB Footprint

Datasheet

README