DS1230W Datasheet, PDF (3/11 Pages) Dallas Semiconductor – 3.3V 256k Nonvolatile SRAM

DS1230W
PACKAGES
The DS1230W is available in two packages: 28-pin DIP and 34-pin PowerCap Module (PCM). The 28-
pin DIP integrates a lithium battery, an SRAM memory and a nonvolatile control function into a single
package with a JEDEC-standard, 600-mil DIP pinout. The 34-pin PowerCap Module integrates SRAM
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 DS1230W to be
surface mounted without subjecting its lithium backup battery to destructive high-temperature reflow
soldering. After a DS1230W 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. DS1230W 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
-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
* 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
V_CC
3.0 3.3
Logic 1
V_IH
2.2
Logic 0
V_IL
0.0
(t_A: See Note 10)
MAX UNITS NOTES
3.6
V
V_CC
V
0.4
V
DC ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL
Input Leakage Current
I_IL
I/O Leakage Current CE ≥ V_IH ≤ V_CC
I_IO
Output Current @ 2.2V
I_OH
Output Current @ 0.4V
I_OL
Standby Current CE =2.2V
I_CCS1
Standby Current CE =V_CC-0.2V
I_CCS2
Operating Current
I_CCO1
Write Protection Voltage
V_TP
(t_A: See Note 10) (V_CC=3.3V ±=3.0V)
MIN TYP MAX UNITS NOTES
-1.0
+1.0
V
-1.0
+1.0
µA
-1.0
mA
2.0
mA
50
250
µA
30
150
µA
50
mA
2.8 2.9
3.0
V
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