atmega32u4-16mu ATMEL Corporation, atmega32u4-16mu Datasheet - Page 409

• Manufacturer Part Number: atmega32u4-16mu
• Description: Atmega32u4 8-bit Avr Microcontroller With 32k Bytes Of Isp Flash And Usb Controller
• Manufacturer: ATMEL Corporation

7766A–AVR–03/08
Figure 30-8. External Memory Timing (SRWn1 = 0, SRWn0 = 1)
Figure 30-9. External Memory Timing (SRWn1 = 1, SRWn0 = 0)
System Clock (CLK
System Clock (CLK
DA7:0 (XMBK = 0)
DA7:0 (XMBK = 0)
DA7:0
A15:8
CPU
ALE
WR
RD
DA7:0
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
4
2
XX
7
8
5
T2
6
13
3a
3b
10
XX
7
8
T3
13
10
Address
T3
Data
Address
12
Data
16
15
9
T4
Data
15
Data
16
12
9
T4
T5
ATmega32U4
11
11
T5
14
T6
14
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