DS1225AB-85 Maxim Integrated Products, DS1225AB-85 Datasheet - Page 6

• Manufacturer Part Number: DS1225AB-85
• Description: IC NVSRAM 64KBIT 85NS 28DIP
• Manufacturer: Maxim Integrated Products

Specifications of DS1225AB-85

• Format - Memory: RAM
• Memory Type: NVSRAM (Non-Volatile SRAM)
• Memory Size: 64K (8K x 8)
• Speed: 85ns
• Interface: Parallel
• Voltage - Supply: 4.75 V ~ 5.25 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 28-DIP Module (600 mil), 28-EDIP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: DS1225AB85

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