SN74LS156 datasheet(4/4 Pages) ONSEMI

номер детали	SN74LS156

подробное описание детали	Dual 1-of-4 Decorder/Demultiplexer

PDF	4 Pages

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производитель	ONSEMI [ON Semiconductor]

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SN74LS156

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113

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

All Inputs

VIL

Input LOW Voltage

0.8

Guaranteed Input LOW Voltage for

All Inputs

VIK

Input Clamp Diode Voltage

– 0.65

– 1.5

VCC = MIN, IIN = – 18 mA

IOH

Output HIGH Current

100

µA

VCC = MIN, VOH = MAX

Output LOW Voltage

0.25

0.4

IOL = 4.0 mA

VCC = VCC MIN,

VIN =VIL or VIH

VOL

Output LOW Voltage

0.35

0.5

IOL = 8.0 mA

VIN = VIL or VIH

per Truth Table

Input HIGH Current

µA

VCC = MAX, VIN = 2.7 V

IIH

Input HIGH Current

0.1

VCC = MAX, VIN = 7.0 V

IIL

Input LOW Current

– 0.4

VCC = MAX, VIN = 0.4 V

ICC

Power Supply Current

VCC = MAX

AC CHARACTERISTICS (TA = 25°C)

Limits

Symbol

Parameter

Min

Typ

Max

Unit

Test Conditions

tPLH

tPHL

Propagation Delay

Address, Ea or Eb to Output

Figure 1

tPLH

tPHL

Propagation Delay

Address to Output

Figure 2

VCC = 5.0 V

CL = 15 pF

RL = 2.0 kΩ

tPLH

tPHL

Propagation Delay

Ea to Output

Figure 1

2.0 k

Ω

AC WAVEFORMS

Figure 1.

Figure 2.

VIN

VOUT

1.3 V

tPHL

1.3 V

tPLH

1.3 V

VIN

VOUT

1.3 V

tPHL

1.3 V

tPLH

1.3 V

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