Rainbow Electronics DS1747P - Manual (Page 12)

DS1747/DS1747P
12 of 18
POWER–UP/DOWN AC CHARACTERISTICS
(Over the Operating Range; V
CC
= 5.0V ± 10%)
PARAMETER SYMBOL MIN TYP MAX UNITS NOTES
CE or WE at V
H
Before Power-down
t
PD
0 ms
V
CC
Fall Time: V
PF
(MAX) to
V
PF
(MIN)
t
F
300 ms
V
CC
Fall Time: V
PF
(MIN) to V
SO
t
FB
10 ms
V
CC
Rise Time: V
PF
(MIN) to
V
PF
(MAX)
t
R
0 ms
Power-up Recover Time t
REC
35 ms
Expected Data Retention Time
(Oscillator ON) t
DR
10 years 5,6
POWER–UP/POWER–DOWN TIMING 5 VOLT DEVICE