ATmega88

The ATmega88 is an electronic integrated circuit microcontroller produced by the Atmel corporation. It has the basic Atmel AVR instruction set. One of the packaging configurations is the dual in-line package (DIP). It has 23 I/O pins and operates at up to 20 MHz for clock speed. It has an 8-bit core and 8K flash (program) memory. ^[1]

Atmel Mega88V with 8 KB Flash memory

Variant ATmega168 with 16 KB Flash memory

Many of Atmel's microcontrollers in this line have similar instruction sets, so if an engineer learns the instruction set from one of their microprocessors, this knowledge is transferable to other microcontrollers in the line.

The ATmega168 is a variant with 16 KB Flash memory.^[2]

Features

Parameter	ATmega88	ATmega168
CPU type	8-bit AVR	8-bit AVR
Performance	20 MIPS at 20 MHz[3]	20 MIPS at 20 MHz[3]
Flash memory	8 KB	16 KB
SRAM	1 KB	1 KB
EEPROM	512 B	512 B
Pin count	28 or 32 pin:	28 or 32 pin:
Maximum operating frequency	20 MHz	20 MHz
Hardware QTouch Acquisition	No	20 MHz
Maximum I/O pins	23	23
External interrupts	2	2
USB Interface	No	No
USB Speed	–	–