attiny167-esxz ATMEL Corporation, attiny167-esxz Datasheet - Page 16

• Manufacturer Part Number: attiny167-esxz
• Description: 8-bit Avr 8-bit Microcontroller Microcontroller With 16k Bytes In-system Programmable Flash And Lin Controller
• Manufacturer: ATMEL Corporation

3.2.1
3.3
3.3.1
16
EEPROM Data Memory
ATtiny167
Data Memory Access Times
EEPROM Read/Write Access
Figure 3-2.
This section describes the general access timing concepts for internal memory access. The
internal data SRAM access is performed in two clk
Figure 3-3.
The ATtiny167 contains EEPROM memory (see “E2 size” in
nized as a separate data space, in which single bytes can be read and written. The EEPROM
has an endurance of at least 100,000 write/erase cycles in automotive range. The access
between the EEPROM and the CPU is described in the following, specifying the EEPROM
Address Registers, the EEPROM Data Register and the EEPROM Control Register.
Section 21. ”Memory Programming” on page 216
programming in SPI or Parallel Programming mode.
The EEPROM Access Registers are accessible in the I/O space.
Address
Data Memory Map
On-chip Data SRAM Access Cycles
clk
Data
Data
WR
CPU
RD
Compute Address
64 I/O Registers
160 Ext I/O Reg.
Internal SRAM
Data Memory
(ISRAM size)
32 Registers
T1
Memory Access Instruction
Address valid
ISRAM end
0x0000 - 0x001F
0x0020 - 0x005F
0x0060 - 0x00FF
ISRAM start
CPU
T2
contains a detailed description on EEPROM
cycles as described in
Table 3-1 on page
Next Instruction
T3
Figure
7728A–AUTO–07/08
14). It is orga-
3-3.