HD74LS138FPEL datasheet(5/10 Pages) RENESAS

5 / 10 page

HD74LS138

Rev.3.00, Jul.13.2005, page 3 of 7

Electrical Characteristics

(Ta = –20 to +75 °C)

Item

Symbol

min.

typ.*

max.

Unit

Condition

VIH

2.0

—

Input voltage

VIL

—

0.8

VOH

2.7

—

VCC = 4.75 V, VIH = 2 V, VIL = 0.8 V,

IOH = –400

µA

—

0.4

IOL = 4 mA

Output voltage

VOL

—

0.5

IOL = 8 mA

VCC = 4.75 V, VIH = 2 V,

VIL = 0.8 V

IIH

—

µA

VCC = 5.25 V, VI = 2.7 V

IIL

—

–0.4

VCC = 5.25 V, VI = 0.4 V

Input current

—

0.1

VCC = 5.25 V, VI = 7 V

Short-circuit output

current

IOS

–20

—

–100

VCC = 5.25 V

Supply current

ICC

—

6.3

VCC = 5.25 V, Outputs enabled and open

Input clamp voltage

VIK

—

–1.5

VCC = 4.75 V, IIN = –18 mA

Note:

* VCC = 5 V, Ta = 25°C

Switching Characteristics

(VCC = 5 V, Ta = 25°C)

Item

Symbol

Inputs

Output

Levels

of delay

min.

typ.

max.

Unit

Condition

tPLH

—

tPHL

—

tPLH

—

tPLH

Binary

select

A, B, C

—

tPLH

—

tPHL

Enable

G2A, G2B

—

tPLH

—

Propagation

delay time

tPLH

Enable

—

CL = 15 pF,

RL = 2 k

Ω

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