SAB80C166W Datasheet, PDF (56/67 Pages) Siemens Semiconductor Group – C16x-Family of High-Performance CMOS 16-Bit Microcontrollers

SAB 80C166W/83C166W
ALE
A17-A16
(A15-A8)
BHE
Read Cycle
BUS
RD
t₅
t₁₆
t₁₇
Address
t₆
t₇
Address
t₉
t₁₁
t₁₅
t₁₃
t₂₅
t₂₇
t₁₉
t₁₈
Data In
Write Cycle
BUS
Address
t₂₃
Data Out
WR
t₉
t₁₁
t₂₂
t₁₃
Figure 12-4
External Memory Cycle: Multiplexed Bus, No Read/Write Delay, Extended ALE
Semiconductor Group
56