attiny13-20ss ATMEL Corporation, attiny13-20ss Datasheet - Page 13

• Manufacturer Part Number: attiny13-20ss
• Description: 8-bit Microcontroller With 1k Bytes In-system Programmable Flash - Atmel Corporation
• Manufacturer: ATMEL Corporation

AVR Memories
In-System Re-
programmable Flash
Program Memory
2535G–AVR–01/07
This section describes the different memories in the ATtiny13. The AVR architecture
has two main memory spaces, the Data memory and the Program memory space. In
addition, the ATtiny13 features an EEPROM Memory for data storage. All three memory
spaces are linear and regular.
The ATtiny13 contains 1K byte On-chip In-System Reprogrammable Flash memory for
program storage. Since all AVR instructions are 16 or 32 bits wide, the Flash is orga-
nized as 512 x 16.
The Flash memory has an endurance of at least 10,000 write/erase cycles. The
ATtiny13 Program Counter (PC) is nine bits wide, thus addressing the 512 Program
memory locations. “Memory Programming” on page 103 contains a detailed description
on Flash data serial downloading using the SPI pins.
Constant tables can be allocated within the entire Program memory address space (see
the LPM – Load Program memory instruction description).
Timing diagrams for instruction fetch and execution are presented in “Instruction Execu-
tion Timing” on page 10.
Figure 8. Program Memory Map
Program Memory
0x01FF
0x0000
13