Datasheet

DS12885/DS12887/DS12887A/DS12C887/DS12C887A
Real-Time Clocks
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t
CS
t
AHL
t
ASL
t
CYC
PW
ASH
PW
EL
PW
EH
CS
R/W
AS
DS
AD0–AD7
t
ASD
t
ASD
t
ASED
t
DDR
t
DHR
t
CH
Intel Bus Read Timing
t
RWL
t
IRR
t
IRDS
DS
RESET
IRQ
IRQ Release Delay Timing
OUTPUTS
INPUTS
HIGH-Z
DON'T CARE
VALID
RECOGNIZED
RECOGNIZED
VALID
V
CC
t
F
V
PF(MAX)
V
PF(MIN)
t
RPU
t
R
t
DR
Power-Up/Power-Down Timing