Capacitance (t, 25°c), Ac electrical characteristics (0°c to 70°c) – Rainbow Electronics DS1384 User Manual
Page 13
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DS1384
13 of 17
CAPACITANCE
(t
A
= 25°C)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Capacitance on all pins
(except DQ)
C
I
7
15
pF
Capacitance on DQ pins
C
DQ
7
15
pF
AC ELECTRICAL CHARACTERISTICS
(0°C to 70°C)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
CE
at V
IH
before Power
Down
t
PD
0
µs
V
PF
(Max) to V
PF
(Min)
V
CC
Fall Time
t
F
300
µs
V
PF
(Min) to V
SO
V
CC
Fall
Time
t
FB
10
µs
V
PF
(Min) to V
PF
(Max)
V
CC
Rise Time
t
R
0
µs
Power Up
t
REC
10
150
ms
Expected Data Retention
Time (Oscillator On)
t
DR
10
years
7
READ CYCLE TIMING: RTC AND EXTERNAL SRAM CONTROL SIGNALS
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