SN74LS290D 查看數據表（PDF） - ON Semiconductor

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SN74LS290D

DECADE COUNTER; 4-BIT BINARY COUNTER

ON Semiconductor 

SN74LS290

DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)

Limits

Symbol

VIH

Parameter

Input HIGH Voltage

Min Typ Max Unit

Test Conditions

2.0

V

Guaranteed Input HIGH Voltage for

All Inputs

54

VIL

Input LOW Voltage

74

0.7

0.8

V

Guaranteed Input LOW Voltage for

All Inputs

VIK

Input Clamp Diode Voltage

−0.65 −1.5

V

VCC = MIN, IIN = − 18 mA

54

2.5

3.5

VOH

Output HIGH Voltage

74

2.7

3.5

V

VCC = MIN, IOH = MAX, VIN = VIH

V

or VIL per Truth Table

54, 74

VOL

Output LOW Voltage

74

0.25 0.4

0.35 0.5

V

IOL = 4.0 mA

VCC = VCC MIN,

VIN = VIL or VIH

V

IOL = 8.0 mA

per Truth Table

IIH

Input HIGH Current

20

μA VCC = MAX, VIN = 2.7 V

0.1

mA VCC = MAX, VIN = 7.0 V

Input LOW Current

MS, MR

IIL

CP0

CP1 (LS290)

CP1 (LS293)

−0.4

−2.4

−3.2

−1.6

mA VCC = MAX, VIN = 0.4 V

IOS

Short Circuit Current (Note 1)

−20

−100 mA VCC = MAX

ICC

Power Supply Current

15

Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.

mA VCC = MAX

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