DS1747 Maxim, DS1747 Datasheet - Page 14

• 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 CHARACTERISTICS (3.3V)
(V
Power-Down
V
V
V
V
Power-Up Recover Time
V
Only)
Expected Data-Retention Time
(Oscillator ON)
POWER-UP/DOWN WAVEFORM TIMING (3.3V DEVICE)
CAPACITANCE
(T
Capacitance on All Input Pins
Capacitance on All Output Pins
CE or WE at V
CC
PF(MIN)
CC
PF(MAX)
PF
A
CC
= +25°C)
to RST High (PowerCap
Fall Time: V
Rise Time: V
= 3.3V ±10%, T
PARAMETER
PARAMETER
H
PF(MAX)
, Before
PF(MIN)
A
= Over the Operating Range.)
to
to
SYMBOL
SYMBOL
C
C
t
t
t
REC
IN
t
O
t
DR
PD
R
F
14 of 16
MIN
MIN
300
10
0
0
TYP
TYP
MAX
MAX
35
14
10
UNITS
UNITS
years
ms
µs
µs
µs
pF
pF
NOTES
NOTES
5, 6