HD74LS122P datasheet(4/8 Pages) RENESAS

номер детали	HD74LS122P

подробное описание детали	Retriggerable Monostable Multivibrator (with Clear)

PDF	8 Pages

Scroll/Zoom	100%

производитель	RENESAS [Renesas Technology Corp]

домашняя страница	http://www.renesas.com

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4 / 8 page

HD74LS122

Rev.2.00, Feb.18.2005, page 4 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

—

VCC = 5.25 V

Input clamp voltage

VIK

—

–1.5

VCC = 4.75 V, IIN = –18 mA

* VCC = 5 V, Ta = 25°C

** With all outputs open and 4.5 V applied to all data and clear inputs, ICC is measured after a momentary ground, then

4.5 V, is applied to clock.

Note:

To measure VOH at Q, VOL at Q, or IOS at Q, ground Rext / Cext, apply 2 V to B and clear, and pulse A from

2 V to 0 V.

Switching Characteristics

(VCC = 5 V, Ta = 25°C)

Item

Symbol

Inputs

Outputs

min.

typ.

max.

Unit

Condition

tPLH

—

tPHL

—

tPLH

—

tPHL

—

tPLH

—

Propagation delay

time

tPHL

Clear

—

Cext = 0, Rext = 5 k

Ω, CL

= 15 pF, RL = 2 k

Ω

t(out)min

—

116

200

Output pulse width

t(out)

A or B

4.5

µs

Cext = 1000 pF,

Rext = 10 k

Ω,

CL = 15 pF, RL = 2 k

Ω

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