DS1554-100 DALLAS [Dallas Semiconductor], DS1554-100 Datasheet - Page 16

• Manufacturer Part Number: DS1554-100
• Description: 256K NV Y2KC Timekeeping RAM
• Manufacturer: DALLAS [Dallas Semiconductor]

POWER-UP/DOWN CHARACTERISTICS
POWER-UP/DOWN WAVEFORM TIMING 3.3-VOLT DEVICE Figure 9
CAPACITANCE
PARAMETER
Power-Down
V
V
V
V
V
Expected Data Retention Time
(Oscillator On)
CE
PARAMETER
Capacitance on all input pins
Capacitance on
and DQ pins
CC
PF(Min)
CC
PF(MAX)
PF
or
to
Fall Time: V
Rise Time: V
RST
WE
at V
High
IH
IRQ
PF(MAX)
PF(MIN)
, Before
/FT,
to
to
RST
,
SYMBOL
SYMBOL
t
C
t
C
t
REC
t
t
DR
PD
R
F
IN
IO
16 of 21
MIN
MIN
300
40
10
0
0
TYP
TYP
(0 C to 70 C; V
MAX
MAX
200
10
7
UNITS
CC
UNITS
years
ms
pF
pF
= 3.3V 10%)
s
s
s
(T
A
NOTES
NOTES
= 25 C)
6, 7
DS1554
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