Rainbow Electronics DS1747P - Manual (Page 13)

DS1747/DS1747P
13 of 18
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
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
Rise Time: V
PF
(MIN) to
V
PF
(MAX)
t
R
0 ms
V
PF
to RST High
t
REC
35 ms
Expected Data Retention Time
(Oscillator ON) t
DR
10 years 5,6
POWER–UP/DOWN WAVEFORM TIMING 3.3 VOLT DEVICE
CAPACITANCE (t A = 25 °C)
PARAMETER SYMBOL MIN TYP MAX UNITS NOTES
Capacitance on all input pins C
IN
7 pF
Capacitance on all output pins C
O
10 pF