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DS1245W Datasheet(PDF) 3 Page - Dallas Semiconductor

Part # DS1245W
Description  3.3V 1024k Nonvolatile SRAM
Download  11 Pages
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Manufacturer  DALLAS [Dallas Semiconductor]
Direct Link  https://www.maximintegrated.com/en.html
Logo DALLAS - Dallas Semiconductor

DS1245W Datasheet(HTML) 3 Page - Dallas Semiconductor

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memory and nonvolatile control into a module base along with contacts for connection to the lithium
battery in the DS9034PC PowerCap. The PowerCap Module package design allows a DS1245W PCM
device to be surface mounted without subjecting its lithium backup battery to destructive high-
temperature reflow soldering. After a DS1245W module base is reflow soldered, a DS9034PC PowerCap
is snapped on top of the base to form a complete Nonvolatile SRAM module. The DS9034PC is keyed to
prevent improper attachment. DS1245W module bases and DS9034PC PowerCaps are ordered separately
and shipped in separate containers. See the DS9034PC data sheet for further information.
ABSOLUTE MAXIMUM RATINGS*
Voltage on Any Pin Relative to Ground
-0.3V to +4.6V
Operating Temperature
0°C to 70°C, -40°C to +85°C for Ind parts
Storage Temperature
-40°C to +70°C, -40°C to +85°C for Ind parts
Soldering Temperature
260°C for 10 seconds
*
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
(tA: See Note 10)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Power Supply Voltage
VCC
3.0
3.3
3.6
V
Logic 1
VIH
2.2
VCC
V
Logic 0
VIL
0.0
0.4
V
DC ELECTRICAL CHARACTERISTICS
(tA: See Note 10) (VCC=3.3V
±=0.3V)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Input Leakage Current
IIL
-1.0
+1.0
µA
I/O Leakage Current CE
≥ V
IH
≤ V
CC
IIO
-1.0
+1.0
µA
Output Current @ 2.2V
IOH
-1.0
mA
Output Current @ 0.4V
IOL
2.0
mA
Standby Current CE =2.2V
ICCS1
50
250
µA
Standby Current CE =VCC-0.2V
ICCS2
30
150
µA
Operating Current
ICCO1
50
mA
Write Protection Voltage (DS1245AB)
VTP
2.8
2.9
3.0
V
CAPACITANCE
(tA=25
°C)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Input Capacitance
CIN
510
pF
Input/Output Capacitance
CI/O
510
pF


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