ATMEGA644PA-MU

Microchip TechnologyExtended

-40℃~+85℃ 1.8V~5.5V 10bit 20MHz 2KB 32 64KB 8 Bit AVR Built-in FLASH VQFN-44(7x7) Microcontrollers (MCU/MPU/SOC) ROHS

Part id: microchip/ATMEGA644PA-MU
Category: Microcontroller Units (MCUs, MPUs, SOCs)
Package: VQFN-44(7x7)
Pins: 45
In stock: 3 at JLCPCB (C1337454)

Overview

The ATMEGA644PA-MU is a microcontroller Unit made by Microchip Technology in a VQFN-44(7x7) package with 45 pins. -40℃~+85℃ 1.8V~5.5V 10bit 20MHz 2KB 32 64KB 8 Bit AVR Built-in FLASH VQFN-44(7x7) Microcontrollers (MCU/MPU/SOC) ROHS.

PCBKit's library has its KiCad symbol (MCU_Microchip_ATmega:ATmega644PA-M, from KiCad's library) and its footprint (Package_DFN_QFN:QFN-44-1EP_7x7mm_P0.5mm_EP5.2x5.2mm, from KiCad's library), ready for a KiCad board. 3 are in stock at JLCPCB (part C1337454).

Symbol

MCU_Microchip_ATmega:ATmega644PA-MFrom KiCad's library

Footprint

Package_DFN_QFN:QFN-44-1EP_7x7mm_P0.5mm_EP5.2x5.2mmFrom KiCad's library

Pinout

The pins of the ATMEGA644PA-MU
Pin	Name	Type
1	PB5	Input/output
2	PB6	Input/output
3	PB7	Input/output
4	RESET	Input
5	VCC	Power in
6	GND	Power in
7	XTAL2	Output
8	XTAL1	Input
9	PD0	Input/output
10	PD1	Input/output
11	PD2	Input/output
12	PD3	Input/output
13	PD4	Input/output
14	PD5	Input/output
15	PD6	Input/output
16	PD7	Input/output
17	VCC	Passive
18	GND	Passive
19	PC0	Input/output
20	PC1	Input/output
21	PC2	Input/output
22	PC3	Input/output
23	PC4	Input/output
24	PC5	Input/output
25	PC6	Input/output
26	PC7	Input/output
27	AVCC	Power in
28	GND	Passive
29	AREF	Passive
30	PA7	Input/output
31	PA6	Input/output
32	PA5	Input/output
33	PA4	Input/output
34	PA3	Input/output
35	PA2	Input/output
36	PA1	Input/output
37	PA0	Input/output
38	VCC	Passive
39	GND	Passive
40	PB0	Input/output
41	PB1	Input/output
42	PB2	Input/output
43	PB3	Input/output
44	PB4	Input/output
45	GND	Passive

Parameters

ADC (Bit): 10bit
CPU Core: AVR
CPU Maximum Speed: 20MHz
Core Size: 8 Bit
EEPROM: 2KB
Features: Undervoltage detection (BOR/LVD/LVR/LVI)
Number of I/O: 32
Operating Temperature: -40℃~+85℃
Oscillator Type: Built-in
Program Memory Type: FLASH
Program Storage Size: 64KB
RAM Size: 4KB
Voltage - Supply: 1.8V~5.5V

Order codes

ATMEGA644PA-MULCSC C1337454

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Questions

Is there a KiCad symbol and footprint for the ATMEGA644PA-MU?

Yes. The symbol is MCU_Microchip_ATmega:ATmega644PA-M and the footprint Package_DFN_QFN:QFN-44-1EP_7x7mm_P0.5mm_EP5.2x5.2mm, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the ATMEGA644PA-MU?

VQFN-44(7x7), with 45 pins. Its footprint is drawn on this page.

Where is the ATMEGA644PA-MU datasheet?

Microchip Technology publishes it: the Datasheet link on this page opens it.

Where can I order the ATMEGA644PA-MU?

JLCPCB lists it as part C1337454, with 3 in stock; the sellers' links on this page open their listings.

What can replace the ATMEGA644PA-MU?

Parts like it in the library: the ATXMEGA128D4-MH by Microchip Technology, the ATXMEGA16D4-MHA2 by Microchip Technology and the ATXMEGA32D4-MN by Microchip Technology. Check their datasheets: a part that fits the footprint may still differ in its ratings.