HD74LS123RPEL 查看數據表（PDF） - Renesas Electronics

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HD74LS123RPEL

Dual Retriggerable Monostable Multivibrators (with Clear)

Renesas Electronics 

HD74LS123

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

“H”

A, B

“L”

CLR “L”

External timing resistance

External capacitance

Wiring capacitance at Rext/Cext terminal

Symbol

VCC

IOH

IOL

Topr

tw (in)

Rext

Cext

Min

4.75

—

—

–20

40

40

40

5

—

Typ

Max

Unit

5.00

5.25

V

—

–400

µA

—

8

mA

25

75

°C

—

—

ns

—

—

ns

—

—

ns

—

260

kΩ

Non restriction

—

50

pF

Electrical Characteristics

(Ta = –20 to +75 °C)

Item

Symbol

min.

typ.* max.

Unit

Condition

Input voltage

Output voltage

Input current

Short-circuit output

current

VIH

2.0

—

—

V

VIL

—

—

0.8

V

VOH

2.7

—

—

V

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

IOH = –400 µA

VOL

—

—

—

0.4

—

0.5

V

IOL = 4 mA

IOL = 8 mA

VCC = 4.75 V, VIH = 2 V,

VIL = 0.8 V

IIH

—

—

20

µA VCC = 5.25 V, VI = 2.7 V

IIL

—

—

–0.4

mA VCC = 5.25 V, VI = 0.4 V

II

—

—

0.1

mA VCC = 5.25 V, VI = 7 V

IOS

–20

—

–100

mA VCC = 5.25 V

Supply current**

ICC

—

12

20

mA VCC = 5.25 V

Input clamp voltage

VIK

—

—

–1.5

V

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.

Rev.2.00, Feb.18.2005, page 3 of 8

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