st10f269z1 STMicroelectronics, st10f269z1 Datasheet - Page 157

• Manufacturer Part Number: st10f269z1
• Description: St10f269 16-bit Mcu With Mac Unit, 256k Byte Flash Memory And 12k Byte Ram
• Manufacturer: STMicroelectronics

ST10F269
Figure 72 : External Memory Cycle: Multiplexed Bus, With / Without Read / Write Delay, Extended ALE
CLKOUT
ALE
CSx
A23-A16
(A15-A8)
BHE
Read Cycle
Address/Data
Bus (P0)
RD
Write Cycle
WR
WRL
WRH
Address/Data
Bus (P0)
t
t
6
t
6
t
6
5
Address
t
38
Address
t
t
9
t
9
17
t
17
t
7
t
t
8
8
Address
t
39
t
16
t
t
11
11
t
t
t
t
13
t
10
15
13
10
t
t
14
12
t
12
t
22
Data Out
Data In
t
18
t
t
27
23
t
t
27
19
t
25
t
40
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