DS1250AB_99 查看數據表（PDF） - Dallas Semiconductor -> Maxim Integrated

零件编号

产品描述 (功能)

生产厂家

DS1250AB_99

4096k Nonvolatile SRAM

Dallas Semiconductor -> Maxim Integrated 

DS1250Y/AB

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

Operating Temperature

Storage Temperature

Soldering Temperature

-0.3V to +7.0V

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

DS1250AB Power Supply Voltage

VCC

4.75 5.0

DS1250Y Power Supply Voltage

VCC

4.5 5.0

Logic 1

VIH

2.2

Logic 0

VIL

0.0

(tA: See Note 10)

MAX UNITS NOTES

5.25

V

5.5

V

VCC

V

+0.8

V

DC ELECTRICAL

CHARACTERISTICS

PARAMETER

Input Leakage Current

I/O Leakage Current CE ≥ VIH ≤ VCC

Output Current @ 2.2V

Output Current @ 0.4V

Standby Current CE =2.2V

Standby Current CE =VCC-0.5V

Operating Current

Write Protection Voltage (DS1250AB)

Write Protection Voltage (DS1250Y)

(VCC=5V ±=5% for DS1250AB)

(tA: See Note 10) (VCC=5V ±=10% for DS1250Y)

SYMBOL MIN TYP MAX UNITS NOTES

IIL

-1.0

+1.0

µA

IIO

-1.0

+1.0

µA

IOH

-1.0

mA

IOL

2.0

mA

ICCS1

5.0 10.0

mA

ICCS2

3.0

5.0

mA

ICCO1

85

mA

VTP

4.50 4.62 4.75

V

VTP

4.25 4.37 4.5

V

3 of 11

Share Link: