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Número de pieza | DS38464 | |
Descripción | 3.3V 64K x 40 NV SRAM SIMM | |
Fabricantes | Maxim Integrated Products | |
Logotipo | ||
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FEATURES
· 2Mbits organized as a 64K x 40 memory
· 6 years minimum data retention in the
absence of external power
· Nonvolatile circuitry transparent to and
independent of host system
· Automatic write protection circuitry
safeguards against data loss
· Battery monitor checks remaining capacity
daily
· Fast access time of 70ns
· Operating VCC range of 3.0V to 3.6V
· Employs popular JEDEC standard 72-
position SIMM connector
· Operating temperature: 0oC to +70oC
PIN DESCRIPTION
A0 - A15 -
Address Inputs
DQ0 – DQ39 -
Data Inputs/Outputs
CEA\
- Chip Enable Inputs
WE\ - Write Enable Inputs
OE\ - Output Enable Inputs
VCC
- 3.3V Power Supply
GND
- Ground
DS38464
3.3V 64K x 40 NV SRAM SIMM
PIN ASSIGNMENT
DS38464 72-PIN SIMM
1 of 10
102902
1 page ABSOLUTE MAXIMUM RATINGS*
Voltage on any pin relative to ground
-0.3 to +4.6V
Operating temperature
0°C to 70°C
Storage temperature
-40°C to +85°C
DS38464
*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 TYP
Power Supply Voltage
Logic 1 Input Voltage
Logic 0 Input Voltage
VCC 3.0 3.3
VIH 2.2
VIL 0.0
MAX
3.6
VCC
+0.4
(TA = 0 to 70°C)
UNITS NOTES
V
V
V
DC ELECTRICAL CHARACTERISTICS (TA = 0 to 70°C; VCC = 3.3V ± 0.3V)
PARAMETER
SYMBOL TEST CONDITIONS MIN TYP MAX UNITS
Input Leakage Current
IIL 0V < VIN < VCC
-4
+4 mA
Output Leakage Current
ILO 0V < VOUT < VCC,
all CE \ = VIH
-1
+1 mA
Operating Current
ICCO duty=100%
all CE\ = VIL, II/O=0,
VIN=VIH or VIL
300 mA
Standby Current
ICCS all CE\ = VIH
1 mA
Output High Current
IOH VOH = 2.4V
-1.0
mA
Output Low Current
IOL VOL = 0.4V
2.1
mA
Write Protection voltage
VTP
2.8 2.9 3.0
V
CAPACITANCE
PARAMETER
Input Capacitance
Output Capacitance
SYMBOL
CIN
CI/O
MIN
TYP
MAX
24
10
(TA = 25°C)
UNITS NOTES
pF
pF
5 of 10
5 Page |
Páginas | Total 10 Páginas | |
PDF Descargar | [ Datasheet DS38464.PDF ] |
Número de pieza | Descripción | Fabricantes |
DS38464 | 3.3V 64K x 40 NV SRAM SIMM | Maxim Integrated Products |
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