ATmega325PA Atmel Corporation, ATmega325PA Datasheet - Page 20

• Manufacturer Part Number: ATmega325PA
• Manufacturer: Atmel Corporation

8.2.1
8285D–AVR–06/11
Data Memory Access Times
ATmega165A/PA/325A/PA/3250A/PA/645A/P/6450A/P
Figure 8-2.
This section describes the general access timing concepts for internal memory access. The
internal data SRAM access is performed in two clk
20.
Figure 8-3.
Address
clk
Data Memory
On-chip Data SRAM Access Cycles
Data
Data
WR
CPU
RD
X 8
160 Ext I/O Reg.
64 I/O Registers
Data Memory
Compute Address
Internal SRAM
32 Registers
(1024 X 8)
(2048 x 8)
(4096 x 8)
T1
Memory Access Instruction
0x04FF/0x08FF/0x10FF
0x0000 - 0x001F
0x0020 - 0x005F
0x0060 - 0x00FF
0x0100
Address valid
CPU
T2
cycles as described in
Next Instruction
T3
Figure 8-3 on page
20