SN54LS194A 데이터 시트보기 (PDF) - Motorola => Freescale

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SN54LS194A

4-BIT BIDIRECTIONAL UNIVERSAL SHIFT REGISTER LOW POWER SCHOTTKY

Motorola => Freescale 

SN54 / 74LS194A

GUARANTEED OPERATING RANGES

Symbol

Parameter

VCC

Supply Voltage

TA

Operating Ambient Temperature Range

IOH

Output Current — High

IOL

Output Current — Low

Min

Typ

Max

Unit

54

4.5

5.0

5.5

V

74

4.75

5.0

5.25

54

– 55

25

125

°C

74

0

25

70

54, 74

– 0.4

mA

54

4.0

mA

74

8.0

DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)

Limits

Symbol

Parameter

Min Typ Max Unit

Test Conditions

VIH

Input HIGH Voltage

2.0

Guaranteed Input HIGH Voltage for

V All Inputs

54

VIL

Input LOW Voltage

74

0.7

Guaranteed Input LOW Voltage for

0.8

V All Inputs

VIK

VOH

Input Clamp Diode Voltage

– 0.65 – 1.5

V VCC = MIN, IIN = – 18 mA

Output HIGH Voltage

54

2.5

3.5

74

2.7

3.5

V VCC = MIN, IOH = MAX, VIN = VIH

V or VIL per Truth Table

VOL

Output LOW Voltage

54, 74

74

0.25 0.4

0.35 0.5

20

IIH

Input HIGH Current

0.1

IIL

Input LOW Current

– 0.4

IOS

Short Circuit Current (Note 1)

– 20

– 100

ICC

Power Supply Current

23

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

V IOL = 4.0 mA

V IOL = 8.0 mA

VCC = VCC MIN,

VIN = VIL or VIH

per Truth Table

µA VCC = MAX, VIN = 2.7 V

mA VCC = MAX, VIN = 7.0 V

mA VCC = MAX, VIN = 0.4 V

mA VCC = MAX

mA VCC = MAX

AC CHARACTERISTICS (TA = 25°C)

Symbol

fMAX

tPLH

tPHL

tPHL

Parameter

Maximum Clock Frequency

Propagation Delay,

Clock to Output

Propagation Delay,

MR to Output

Limits

Min Typ Max

25

36

14

22

17

26

19

30

Unit

MHz

ns

ns

Test Conditions

VCC = 5.0 V

CL = 15 pF

FAST AND LS TTL DATA

5-362

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