DS12885 Maxim, DS12885 Datasheet - Page 5
DS12885
Manufacturer Part Number
DS12885
Description
The DS12885, DS12887, and DS12C887 real-time clocks (RTCs) are designed to be direct replacements for the DS1285 and DS1287
Manufacturer
Maxim
Datasheet
1.DS12885.pdf
(22 pages)
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RESET
IRQ
DS
AD0–AD7
R/W
AS
DS
CS
IRQ Release Delay Timing
t
t
IRDS
ASD
OUTPUTS
INPUTS
V
V
PF(MAX)
PF(MIN)
V
CC
t
ASD
RECOGNIZED
VALID
PW
_____________________________________________________________________
ASH
t
PW
F
t
ASL
EL
t
t
IRR
RWL
t
t
ASED
CS
t
AHL
DON'T CARE
HIGH-Z
t
CYC
t
DR
Power-Up/Power-Down Timing
t
DDR
PW
Real-Time Clocks
EH
Intel Bus Read Timing
t
R
RECOGNIZED
t
VALID
RPU
t
DHR
t
CH
5