ATTINY40-MMH View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

ATTINY40-MMH

8-bit Microcontroller with 4K Bytes In-System Programmable Flash

Atmel Corporation 

Figure 5-1. Data Memory Map (Byte Addressing)

I/O SPACE

0x0000 ... 0x003F

SRAM DATA MEMORY

0x0040 ... 0x013F

(reserved)

0x0140 ... 0x3EFF

NVM LOCK BITS

0x3F00 ... 0x3F01

(reserved)

0x3F02 ... 0x3F3F

CONFIGURATION BITS 0x3F40 ... 0x3F41

(reserved)

0x3F42 ... 0x3F7F

CALIBRATION BITS

0x3F80 ... 0x3F81

(reserved)

0x3F82 ... 0x3FBF

DEVICE ID BITS

0x3FC0 ... 0x3FC3

(reserved)

0x3FC4 ... 0x3FFF

FLASH PROGRAM MEMORY 0x4000 ... 0x47FF

(reserved)

0x4800 ... 0xFFFF

5.2.1

Data Memory Access Times

This section describes the general access timing concepts for internal memory access. The

internal data SRAM access is performed in two clkCPU cycles as described in Figure 5-2.

Figure 5-2. On-chip Data SRAM Access Cycles

T1

T2

T3

clk

CPU

Address

Data

WR

Data

RD

Compute Address

Address valid

Memory Access Instruction

Next Instruction

16 ATtiny40

8263A–AVR–08/10

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