DS1225AB Maxim, DS1225AB Datasheet - Page 6

• Manufacturer Part Number: DS1225AB
• Description: The DS1225AB and DS1225AD are 65,536-bit, fully static, nonvolatile (NV) SRAMs organized as 8192 words by 8 bits
• Manufacturer: Maxim

POWER-DOWN/POWER-UP CONDITION
SEE NOTE 11
POWER-DOWN/POWER-UP TIMING
WARNING:
Under no circumstance are negative undershoots, of any amplitude, allowed when device is in battery
backup mode.
PARAMETER
V
V
V
V
V
PARAMETER
Expected Data Retention Time
CC
CC
CC
CC
CC
Fail Detect to
slew from V
slew from 0V to V
Valid to
Valid to End of Write Protection
CE
TP
and
CE
to 0V
WE
and
TP
Inactive
WE
Inactive
SYMBOL
t
t
t
REC
t
t
PD
PU
SYMBOL MIN TYP MAX UNITS
F
R
6 of 9
t
DR
MIN
300
300
10
TYP
MAX
125
1.5
2
(T
A
: See Note 10)
UNITS
years
ms
ms
µs
µs
µs
(T
A
DS1225AB/AD
= +25°C)
NOTES
NOTES
9
11