DS1250Y/AB

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PACKAGES

The DS1250 is available in two packages: 32-pin DIP and 34-pin PowerCap Module (PCM). The 32-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 DS1250 PCM

device to be surface mounted without subjecting its lithium backup battery to destructive high-

temperature reflow soldering. After a DS1250 PCM module base is reflow soldered, a DS9034PC

PowerCap is snapped on top of the PCM to form a complete Nonvolatile SRAM module. The DS9034PC

is keyed to prevent improper attachment. DS1250 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 +7.0V

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

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

NOTES

DS1250AB Power Supply Voltage

4.75

5.0

5.25

V

DS1250Y Power Supply Voltage

4.5

5.0

5.5

V

Logic 1

2.2

V

Logic 0

0.0

+0.8

V

DC ELECTRICAL

±=5% for DS1250AB)

CHARACTERISTICS

±=10% for DS1250Y)

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

NOTES

Input Leakage Current

-1.0

+1.0

µA

≥ V

IH

≤ V

CC

-1.0

+1.0

µA

Output Current @ 2.2V

-1.0

mA

Output Current @ 0.4V

2.0

mA

5.0

10.0

mA

3.0

5.0

mA

Operating Current

85

mA

Write Protection Voltage (DS1250AB)

4.50

4.62

4.75

V

Write Protection Voltage (DS1250Y)

4.25

4.37

4.5

V