HD74LS20 datasheet(3/6 Pages) RENESAS

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HD74LS20

Rev.2.00, Feb.18.2005, page 3 of 5

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, VIL = 0.8 V, IOH = –400

µA

—

0.5

IOL = 8 mA

VCC = 4.75 V, VIH = 2 V

Output voltage

VOL

—

0.4

IOL = 4 mA

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

ICCH

—

0.4

0.8

VCC = 5.25 V

Supply current

ICCL

—

1.2

2.2

VCC = 5.25 V

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

min.

typ.

max.

Unit

Condition

tPLH

—

Propagation delay time

tPHL

—

CL = 15 pF, RL = 2 k

Ω

Note:

Refer to Test Circuit and Waveform of the Common Item "TTL Common Matter (Document No.: REJ27D0005-

0100)".

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