DS1743 Datasheet, PDF (11/17 Pages) Dallas Semiconductor – Y2KC Nonvolatile Timekeeping RAM

DS1743/DS1743P
POWER-UP/DOWN CHARACTERISTICS
(Over the Operating Range; V_CC = 5.0V ± 10%)
PARAMETER
SYMBOL MIN TYP MAX UNITS NOTES
CE or WE at V_IH , CE2 at V_IL,
Before Power-Down
t_PD
0
V_CC Fall Time: V_PF(MAX) to
V_PF(Min)
t_F
300
V_CC Fall Time: V_PF(MIN) to V_SO
t_FB
10
V_CC Rise Time: V_PF(MIN) to
V_PF(MAX)
t_R
0
Power-up Recover Time
t_REC
Expected Data Retention Time
(Oscillator On)
t_DR
10
µs
µs
µs
µs
35
ms
years
6, 7
POWER-UP/POWER-DOWN TIMING 5-VOLT DEVICE
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