Datasheet Microchip ATmega644PA
| Manufacturer | Microchip |
| Series | ATmega644PA |
The high-performance Microchip picoPower 8-bit AVR RISC-based microcontroller combines 64KB ISP flash memory with read-while-write capabilities, 2KB EEPROM, 4KB SRAM, 32 general purpose I/O lines, 32 general purpose working registers, a real time counter, three flexible timer/counters with compare modes and PWM, two USARTs, a byte oriented 2-wire serial interface, an 8-channel 10-bit A/D converter with optional differential input stage with programmable gain, programmable watchdog timer with internal oscillator, SPI serial port, a JTAG (IEEE 1149
Datasheets
ATmega644PA - Complete Datasheet
PDF, 5.5 Mb, File published: Dec 10, 2016
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ATmega644PA - Summary Datasheet
PDF, 410 Kb, File published: Dec 10, 2016
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Prices
Packaging
| ATMEGA644PA-AN | ATMEGA644PA-ANR | ATMEGA644PA-AU | ATMEGA644PA-AUR | ATMEGA644PA-MN | ATMEGA644PA-MNR | ATMEGA644PA-MU | ATMEGA644PA-MUR | ATMEGA644PA-PU | |
|---|---|---|---|---|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| Package | TQFP | TQFP | TQFP | TQFP | VQFN | VQFN | VQFN | VQFN | PDIP |
Parametrics
| Parameters / Models | ATMEGA644PA-AN | ATMEGA644PA-ANR | ATMEGA644PA-AU | ATMEGA644PA-AUR | ATMEGA644PA-MN | ATMEGA644PA-MNR | ATMEGA644PA-MU | ATMEGA644PA-MUR | ATMEGA644PA-PU |
|---|---|---|---|---|---|---|---|---|---|
| ADC Input | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
| ADC with Computation | No | No | No | No | No | No | No | No | No |
| Angular Timer | No | No | No | No | No | No | No | No | No |
| Architecture | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
| CPU Type | 8-bit AVR | 8-bit AVR | 8-bit AVR | 8-bit AVR | 8-bit AVR | 8-bit AVR | 8-bit AVR | 8-bit AVR | 8-bit AVR |
| CRC | No | No | No | No | No | No | No | No | No |
| Class B Hardware | No | No | No | No | No | No | No | No | No |
| Emulated EEPROM in Flash | 2048 | 2048 | 2048 | 2048 | 2048 | 2048 | 2048 | 2048 | 2048 |
| High Voltage Capable | No | No | No | No | No | No | No | No | No |
| I2C | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Internal Oscillator | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Internal Voltage Reference, Bandgap | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Lead Count | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 40 |
| Math Accelerator | No | No | No | No | No | No | No | No | No |
| Max 16-Bit Digital Timers | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Max 8-Bit Digital Timers | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Max ADC Resolution, Bits | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| Max CPU Speed, MHz | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 |
| Max PWM outputs, including complementary | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
| Number of Comparators | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Operation Voltage Max, V | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 |
| Operation Voltage Min, V | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 |
| Package Width | 10x10x1mm | 10x10x1mm | 10x10x1mm | 10x10x1mm | 7x7x1mm | 7x7x1mm | 7x7x1mm | 7x7x1mm | .600in |
| Peripheral Pin Select / Pin Muxing | No | No | No | No | No | No | No | No | No |
| Pin count | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 44 |
| Program Memory Size, KB | 64 | 64 | 64 | 64 | 64 | 64 | 64 | 64 | 64 |
| SPI | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| SRAM, Bytes | 4096 | 4096 | 4096 | 4096 | 4096 | 4096 | 4096 | 4096 | 4096 |
| Temp Range Max | 85 | 85 | 85 | 85 | 85 | 85 | 85 | 85 | 85 |
| Temp Range Min | -40 | -40 | -40 | -40 | -40 | -40 | -40 | -40 | -40 |
| UART | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Zero Cross detect | No | No | No | No | No | No | No | No | No |
Model Line
Series: ATmega644PA (9)
Manufacturer's Classification
- Microcontrollers > 8-bit Microcontrollers
