HD74LS122 查看數據表（PDF） - Renesas Electronics

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HD74LS122

Retriggerable Monostable Multivibrator (with Clear)

Renesas Electronics 

HD74LS122

Block Diagram

A1

A2

B1

B2

Clear

External parameter

Rect

Cext /Cext Rint

Q

Q

Q

Q

CLR

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

Supply voltage

Item

Output current

Operating temperature

Input pulse width

External timing resistance

External capacitance

Wiring capacitance at Rext/Cext terminal

Symbol

VCC

IOH

IOL

Topr

tw

Rext

Cext

Rext/Cext

Min

4.75

—

—

–20

40

5

—

Typ

Max

Unit

5.00

5.25

V

—

–400

µA

—

8

mA

25

75

°C

—

—

ns

—

260

kΩ

Non restriction

—

50

pF

Rev.2.00, Feb.18.2005, page 3 of 7

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