DS1743 Datasheet, PDF (12/17 Pages) Dallas Semiconductor – Y2KC Nonvolatile Timekeeping RAM

DS1743/DS1743P
POWER-UP/DOWN CHARACTERISTICS
(Over the Operating Range; V_CC = 3.3V ± 10%)
PARAMETER
SYMBOL MIN TYP MAX UNITS NOTES
CE or WE at V_IH , Before
Power-Down
V_CC Fall Time: V_PF(MAX) to
V_PF(Min)
V_CC Rise Time: V_PF(MIN) to
V_PF(MAX)
V_PF to RST High
Expected Data Retention Time
(Oscillator On)
t_PD
0
t_F
300
t_R
0
t_REC
t_DR
10
µs
µs
µs
35
ms
years
6, 7
POWER-UP/DOWN WAVEFORM TIMING 3.3-VOLT DEVICE
CAPACITANCE
PARAMETER
Capacitance on all input pins
Capacitance on all output pins
SYMBOL
C_IN
C_O
MIN
TYP
MAX
7
10
(t_A = 25°C)
UNITS NOTES
pF
pF
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