ATMEGA128-16AU SL383 Atmel, ATMEGA128-16AU SL383 Datasheet - Page 331

• Manufacturer Part Number: ATMEGA128-16AU SL383
• Manufacturer: Atmel

2467S–AVR–07/09
Figure 157. External Memory Timing (SRWn1 = 0, SRWn0 = 0
Figure 158. External Memory Timing (SRWn1 = 0, SRWn0 = 1)
System Clock (CLK
System Clock (CLK
DA7:0 (XMBK = 0)
DA7:0 (XMBK = 0)
DA7:0
A15:8
CPU
ALE
WR
DA7:0
RD
A15:8
CPU
ALE
)
WR
RD
Prev. addr.
)
Prev. data
Prev. addr.
Prev. data
T1
T1
1
Address
Address
4
2
5
T2
6
1
3a
3b
Address
Address
XX
7
4
2
8
13
5
T2
6
3a
3b
10
XX
Address
7
8
T3
13
10
Data
Address
15
16
Data
12
9
T3
15
12
Data
Data
16
9
T4
11
11
ATmega128
T4
14
T5
14
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