Datasheet

2. Configuration Summary
The table below compares the device series of feature and pin compatible devices, providing a seamless
migration path.
Table 2-1. Configuration Summary and Device Comparison
Features ATmega164PA ATmega324PA ATmega644PA ATmega1284P
Pin Count 40/44/49 40/44/49 40/44 40/44
Flash (Bytes) 16K 32K 64K 128K
SRAM (Bytes) 1K 2K 4K 16K
EEPROM (Bytes) 512 1K 2K 4K
General Purpose
I/O Lines
32 32 32 32
SPI 1 1 1 1
TWI (I
2
C) 1 1 1 1
USART 2 2 2 2
ADC 10-bit 15ksps 10-bit 15ksps 10-bit 15ksps 10-bit 15ksps
ADC Channels 8 8 8 8
Analog Comparator 1 1 1 1
8-bit Timer/
Counters
2 2 2 2
16-bit Timer/
Counters
1 1 1 2
PWM channels 6 6 6 8
Packages PDIP
TQFP
VQFN/QFN
DRQFN
VFBGA
PDIP
TQFP
VQFN/QFN
DRQFN
VFBGA
PDIP
TQFP
VQFN/QFN
PDIP
TQFP
VQFNQFN
Atmel ATmega1284P [DATASHEET]
Atmel-42719C-ATmega1284P_Datasheet_Summary-10/2016
5