Datasheet

DS12885/DS12887/DS12887A/DS12C887/DS12C887A
Real-Time Clocks
4 _____________________________________________________________________
PW
ASH
PW
EL
t
ASED
t
CYC
t
RWS
t
CS
t
RWH
t
CH
PW
EH
t
ASD
AD0–AD7
READ
CS
R/ W
AS
DS
AD0–AD7
WRITE
t
DHW
t
DHR
t
DDR
t
AHL
t
ASL
t
DSW
Motorola Bus Read/Write Timing
Intel Bus Write Timing
PW
ASH
PW
EL
PW
EH
t
CS
t
AHL
t
ASL
t
DSW
t
DHW
t
CH
t
ASD
t
ASD
t
CYC
CS
R/W
AS
DS
AD0–AD7
WRITE
t
ASED