DS1744 Maxim, DS1744 Datasheet - Page 13

• Manufacturer Part Number: DS1744
• Description: The DS1744 is a full-function, year-2000-compliant (Y2KC), real-time clock/calendar (RTC) and 32k x 8 NV SRAM
• Manufacturer: Maxim

POWER-UP/DOWN AC CHARACTERISTICS (5V)
(V
V
V
V
Power-Up Recover Time
Expected Data-Retention Time
(Oscillator ON)
POWER-UP/DOWN TIMING (5V DEVICE)
CE or WE at V
CC
CC
CC
CC
Fall Time: V
Fall Time: V
Rise Time: V
= 5.0V 10%, T
PARAMETER
IH
PF(MAX)
PF(MIN)
PF(MIN)
Before Power-Down
A
= Over the operating range.)
to V
to V
to V
SO
PF(MIN)
PF(MAX)
SYMBOL
DS1744/DS1744P Y2K-Compliant, Nonvolatile Timekeeping RAMs
t
t
t
t
REC
t
t
DR
PD
FB
F
R
13 of 16
MIN
300
10
10
0
0
TYP
MAX
35
UNITS
years
ms
s
s
s
s
NOTES
5, 6