DS1647 View Datasheet(PDF) - Dallas Semiconductor -> Maxim Integrated

Part Name

Description

Manufacturer

DS1647

Nonvolatile Timekeeping RAM

Dallas Semiconductor -> Maxim Integrated 

ABSOLUTE MAXIMUM RATINGS*

Voltage on Any Pin Relative to Ground

Storage Temperature

Soldering Temperature

DS1647/DS1647P

-0.3V to +7.0V

-40°C to +85°C

260°C for 10 seconds (DIP Package) (See Note 7)

See IPC/JEDEC Standard J-STD-020A for

Surface Mount Devices

* 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.

OPERATING RANGE

Range

Commercial

Temperature

0°C to +70°C

VCC

5V ± 10%

RECOMMENDED DC OPERATING CONDITIONS

(Over the Operating Range)

PARAMETER

SYMBOL MIN TYP MAX UNITS NOTES

Supply Voltage

Logic 1 Voltage All Inputs

Logic 0 Voltage All Inputs

VCC

4.5 5.0

5.5

V

1

VIH

2.2

VCC+0.3 V

VIL

-0.3

0.8

V

DC ELECTRICAL CHARACTERISTICS

PARAMETER

SYMBOL

Average VCC Power Supply Current

ICC1

TTL Standby Current ( CE =VIH)

ICC2

CMOS Standby Current

ICC3

( CE =VCC-0.2V)

Input Leakage Current (any input)

IIL

Output Leakage Current

IOL

Output Logic 1 Voltage

VOH

(IOUT = -1.0 mA)

Output Logic 0 Voltage

VOL

(IOUT = +2.1 mA)

Write Protection Voltage

VPF

MIN

-1

-1

2.4

4.0

(Over the Operating Range)

TYP

3

MAX

85

6

UNITS NOTES

mA

2, 3

mA

2, 3

2

4.0

mA

2, 3

+1

mA

+1

mA

V

0.4

V

4.5

V

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