DS12887A Datasheet, PDF (12/19 Pages) Maxim Integrated Products – Real-Time Clock

DS5000(T)
EXPANDED DATA MEMORY WRITE CYCLE
27
ALE
PSEN
21
15
WR
23
25
3
4
24
PORT 0
A7–A0
(Rn OR DPL)
DATA OUT
22
PORT 2
P2.7–P2.0 OR A15–A8 FROM PDH
A7–A0
(PCL)
INSTR
IN
A15–A8 FROM PCH
EXTERNAL CLOCK TIMING
28
29
30
31
1
021998 12/19