83C166 Siemens Semiconductor Group, 83C166 Datasheet - Page 45

• Manufacturer Part Number: 83C166
• Description: 16-Bit CMOS Single-Chip Microcontroller
• Manufacturer: Siemens Semiconductor Group

Figure 13-2
External Memory Cycle: Demultiplexed Bus, With Read/Write Delay, Extended ALE
Semiconductor Group
Write Cycle
Read Cycle
(D15-D8)
(D15-D8)
A17-A16
A15-A0
D7-D0
D7-D0
BHE
BUS
BUS
ALE
WR
RD
t
5
t
6
t
t
8
8
t
t
16
17
Address
44
t
t
14
12
t
12
t
22
Data Out
Data In
SAB 80C166/83C166
t
t
t
26
28
t
24
18
t
20