DS1245 DALLAS [Dallas Semiconductor], DS1245 Datasheet - Page 3

• Manufacturer Part Number: DS1245
• Description: 3.3V 1024k Nonvolatile SRAM
• Manufacturer: DALLAS [Dallas Semiconductor]

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
Operating Temperature
Storage Temperature
Soldering Temperature
* This is a stress rating only and functional operation of the device at these or any other conditions
RECOMMENDED DC OPERATING CONDITIONS
DC ELECTRICAL CHARACTERISTICS
CAPACITANCE
PARAMETER
Power Supply Voltage
Logic 1
Logic 0
PARAMETER
Input Leakage Current
I/O Leakage Current
Output Current @ 2.2V
Output Current @ 0.4V
Standby Current
Standby Current
Operating Current
Write Protection Voltage (DS1245AB)
PARAMETER
Input Capacitance
Input/Output Capacitance
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.
CE
CE
=2.2V
=V
CE
CC
-0.2V
V
IH
V
CC
SYMBOL
SYMBOL
SYMBOL
I
I
I
V
C
V
V
CCO1
C
V
I
CCS1
CCS2
I
I
I
OH
OL
IO
IL
CC
I/O
TP
3 of 11
IH
IN
IL
-0.3V to +4.6V
0°C to 70°C, -40°C to +85°C for Ind parts
-40°C to +70°C, -40°C to +85°C for Ind parts
260°C for 10 seconds
MIN
MIN
MIN
-1.0
-1.0
-1.0
3.0
2.2
0.0
2.0
2.8
(t
A
: See Note 10) (V
TYP
TYP
TYP
3.3
2.9
50
30
5
5
MAX
MAX
MAX
+1.0
+1.0
V
250
150
3.6
0.4
3.0
50
10
10
CC
(t
CC
A
: See Note 10)
UNITS
UNITS
UNITS
=3.3V =0.3V)
mA
mA
mA
pF
pF
V
V
V
V
A
A
A
A
(t
A
=25 C)
NOTES
NOTES
NOTES
DS1245W