HD74LS640P データシートの表示（PDF） - Renesas Electronics

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HD74LS640P

Octal Bus Transceivers (inverted 3-state outputs)

Renesas Electronics 

HD74LS640

Block Diagram

Enable G

B

Direction

Control DIR

Transceiver (1/8)

A

Absolute Maximum Ratings

Item

Symbol

Ratings

Unit

Supply voltage

VCC

7

V

Input voltage

VIN

7

V

Power dissipation

Storage temperature

PT

Tstg

400

mW

–65 to +150

°C

Note: Voltage value, unless otherwise noted, are with respect to network ground terminal.

Recommended Operating Conditions

Item

Supply voltage

Output current

Operating temperature

Symbol

VCC

IOH

IOL

Topr

Min

4.75

—

—

–20

Typ

5.00

—

—

25

Max

5.25

–15

24

75

Unit

V

mA

mA

°C

Electrical Characteristics

(Ta = –20 to +75 °C)

Item

Symbol min. typ.* max. Unit

Condition

Input voltage

Hysteresis

VIH

2.0

—

—

V

VIL

—

—

0.8

V

VT+ – VT–

0.2

—

—

V

VCC = 4.75 V

Output voltage

VOH

2.4

—

2

—

—

—

V

IOH = –3 mA VCC = 4.75 V,

V

IOH = –15 mA VIH = 2 V, VIL = 0.8 V

VOL

—

—

0.4

V

IOL = 12 mA

VCC = 4.75 V,

—

—

0.5

V

IOL = 24 mA

VIH = 2 V, VIL = 0.8 V

Output current

IOZH

—

—

20

µA VO = 2.7 V

VCC = 5.25 V,

IOZL

—

—

–400

µA VO = 0.4 V

G input = 2 V

IIH

—

—

20

µA VCC = 5.25 V, VI = 2.7 V

Input

IIL

—

—

–400

µA VCC = 5.25 V, VI = 0.4 V

current

A or B

DIR or G

II

—

—

—

—

0.1

mA VI = 5.5 V

0.1

mA VI = 7 V

VCC = 5.25 V

Short-circuit output current

IOS**

–40

—

–225

mA VCC = 5.25 V

ICCH

—

48

70

mA

Supply current

ICCL

—

62

90

mA VCC = 5.25 V, Output open

ICCZ

—

64

95

mA

Input clamp voltage

VIK

—

—

–1.5

V

VCC = 4.75 V, IIN = –18 mA

Notes: * VCC = 5 V, Ta = 25°C

** Not more than one output shall be shorted at a time. the duration of the short circuit shall not exceed one

second.

Rev.2.00, Feb.18.2005, page 2 of 6

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