ST10 STMICROELECTRONICS [STMicroelectronics], ST10 Datasheet - Page 54

• Manufacturer Part Number: ST10
• Description: 16-BIT MCU WITH 32K BYTE ROM
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

ST10C167
XX - ELECTRICAL CHARACTERISTICS (continued)
Figure 18 : External Memory Cycle: demultiplexed bus, with/without read/write delay, normal ALE
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CLKOUT
ALE
CSx
A23-A16
(A15-A8)
BHE
Read Cycle
Data Bus (P0)
RD
Write Cycle
Data Bus (P0)
WR
WRL
WRH
t
5
t
6
t
t
81
81
t
6
t
t
t
38
80
80
t
t
17
17
Address
t
t
16
39
t
13
t
15
t
t
14
13
t
t
12
12
Data Out
t
22
Data In
t
28
t
24
t
t
t
t
18
41
41u
26
t
21
t
20