English
Language : 

DS1251Y Datasheet, PDF (5/12 Pages) Dallas Semiconductor – 4096K NV SRAM with Phantom Clock
DS1251Y
ABSOLUTE MAXIMUM RATINGS*
Voltage on Any Pin Relative to Ground
Operating Temperature
Storage Temperature
Soldering Temperature
–0.3V to +7.0V
0°C to 70°C
–40°C to +70°C
260°C for 10 seconds (See Note 13)
* This is a stress rating only and functional operation of the device at these or any other conditions above those
indicated in the operation sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods of time may affect reliability.
RECOMMENDED DC OPERATING CONDITIONS
PARAMETER
SYMBOL MIN
Power Supply Voltage
Input Logic 1
Input Logic 0
VCC
4.5
VIH
2.2
VIL
–0.3
DC ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL MIN
Input Leakage Current
I/O Leakage Current
CE  VIH  VCC
Output Current @ 2.4 volts
Output Current @ 0.4 volts
Standby Current CE = 2.2 volts
Standby Current CE =
VCC – 0.5 volts
Operating Current tCYC = 200 ns
IIL
IIO
IOH
IOL
ICCS1
ICCS2
ICC01
–1.0
–1.0
–1.0
2.0
DC TEST CONDITIONS
Outputs are open; all voltages are referenced to ground.
CAPACITANCE
PARAMETER
Input Capacitance
Input/Output Capacitance
SYMBOL MIN
CIN
CI/O
(0°C to 70°C)
TYP
MAX
UNITS NOTES
5.0
5.5
V
VCC+0.3
V
+0.8
V
(0°C to 70°C; VCC = 5V ± 10%)
TYP
MAX
UNITS NOTES
+1.0
µA
12
+1.0
µA
mA
mA
5.0
10
mA
3.0
5.0
mA
85
mA
(tA = 25°C)
TYP
MAX
UNITS NOTES
5
10
pF
5
10
pF
032697 5/12