Flash Memory  128 kB
EEPROM Data Memory  4096 B
SRAM Data Memory  8192 B
General Purpose Registers (Accumulators)  32
External data memory interface (64kB)  Yes

Clock Frequency  0 - 16 MHz
Supply Voltage  2.7 - 5.5 V
Sleep Modes  6
Hardware Multiplier  Yes
I/O Pins  86
On Chip Oscillator  Yes
Interrupts  57
Interrupts, External pins  32
Interrupt or Wake-up on Pin Change  Yes
Brown-out Detection  Yes
Power-on Reset  Yes
Fully Static Operation  Yes
On-Chip Debug support via JTAG port  Yes
IEEE 1149.1 (JTAG) Boundary Scan  Yes

Timer/Counters (8-bit)  2
Watchdog Timer with On-chip Oscillator  Y (extended)
Real Time Counter  Yes
Timer/Counters (16-bit)  4
Pulse Width Modulator  16 ch

Analog Comparator  Yes
Analog-to-Digital Converter (10-bit)  16 ch
Analog Gain Stage  2 ch

In-System Programming via SPI Port  Yes
High Voltage Parallel Programming (12V)  Yes
Self-Programming via on-chip Boot Program  Yes
In-System Programming via JTAG port  Yes

Full Duplex Serial Peripheral Interface (SPI)  Yes
2-wire Serial Interface (I2C compatible)  Yes
Full Duplex USART  4

Read-While-Write Flash memory  Yes

EEPROM preserved through chip erase  Yes
Divide external clock by 8  Yes
System Clock Prescaler  Yes