DS1744W-120 查看數據表（PDF） - Unspecified

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DS1744W-120

Y2K-Compliant, Nonvolatile Timekeeping RAMs

Unspecified 

DS1744/DS1744P

Y2K-Compliant, Nonvolatile Timekeeping RAMs

OPERATING RANGE

RANGE

Commercial

Industrial

TEMP RANGE

0℃ to +70℃, Noncondensing

-40℃ to +85℃. Noncondesning

RECOMMENDED DC OPERATING CONDITIONS

(TA=Over the operating range)

PARAMETER

SYMBOL

Logic 1 Voltage (All Inputs)

VIH

VCC = 5V ±10%

VCC = 3.3V ±10%

VIH

Logic 0 Voltage (All Inputs)

VIL

VCC = 5V ±10% VCC = 3.3V ±10%

VIL

MIN

TYP

2.2

2.0

-0.3

0.3

DC ELECTRICAL CHARACTERISTICS

(Vcc =5.0V ±10%, TA=Over the operating range.)

PARAMETER

SYMBOL MIN

TYP

Active Supply Current

ICC

TTL Standby Current (

= VIH)

ICC1

CMOS Standby Current ( ≥ VCC - 0.2V) Icc2

Input Leakage Current (Any Input)

IIL

Output Leakage Current (Any Output)

IOL

Output Logic 1 Voltage (IOUT = -1.0mA)

VOH

Output Logic 0 Voltage (IOUT = +2.1mA)

VOL

Write Protection Voltage

VPF

Battery Switchover Voltage

VSO

-1

-1

2.4

4.25

VBAT

Vcc

3.3V ± 10% or 5V ±10%

3.3V ± 10% or 5V ±10%

MAX

VCC + 0.3V

VCC + 0.3V

0.8

0.6

UNITS

V

V

V

V

NOTES

1

1

MAX

75

6

4

+1

+1

0.4

4.50

UNITS

mA

mA

mA

µA

µA

V

NOTES

2, 3

2, 3

2, 3

1

1

1

1, 4

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