Overview

The main memories are SRAM data memory, EEPROM data memory, and Flash program memory. In addition, the peripheral registers are located in the I/O memory space.

Table 1. Physical Properties of Flash Memory
Property ATtiny212 ATtiny412
Size 2KB 4KB
Page size 64B 64B
Number of pages 32 64
Start address 0x8000 0x8000
Table 2. Physical Properties of SRAM
Property ATtiny212 ATtiny412
Size 128B 256B
Start address 0x3F80 0x3F00
Table 3. Physical Properties of EEPROM
Property ATtiny212 ATtiny412
Size 64B 128B
Page size 32B 32B
Number of pages 2 4
Start address 0x1400 0x1400