DS1747 Maxim, DS1747 Datasheet - Page 13

• Manufacturer Part Number: DS1747
• Description: The DS1747 is a full-function, year-2000-compliant (Y2KC), real-time clock/calendar (RTC) and 512k x 8 nonvolatile static RAM
• Manufacturer: Maxim

POWER-UP/DOWN AC CHARACTERISTICS (5V)
(V
POWER-UP/DOWN TIMING (5V DEVICE)
Before Power-Down
V
V
V
V
V
Power-Up Recover Time
VPF to RST High (PowerCap
Only)
Expected Data-Retention Time
(Oscillator ON)
CE or WE at V
CC
CC
PF(MIN)
CC
CC
PF
(
= 5.0V ±10%, T
Fall Time: V
MAX)
Fall Time: V
Rise Time: V
PARAMETER
H
PF(MIN)
PF(MAX)
PF(MIN
A
= Over the Operating Range.)
) to
to V
to
SO
SYMBOL
t
t
t
t
REC
t
t
DR
PD
FB
R
F
13 of 16
MIN
300
10
10
0
0
TYP
MAX
35
UNITS
years
ms
µs
µs
µs
µs
NOTES
5, 6