HD74LS273P datasheet(3/7 Pages) RENESAS

номер детали	HD74LS273P

подробное описание детали	Octal D-type Positive-edge-triggered Flip-Flops (with Clear)

PDF	7 Pages

Scroll/Zoom	100%

производитель	RENESAS [Renesas Technology Corp]

домашняя страница	http://www.renesas.com

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3 / 7 page

HD74LS273

Rev.3.00, Jul.15.2005, page 3 of 6

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

—

0.5

IOL = 8 mA

Output voltage

VOL

—

0.4

IOL = 4 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

Notes: * 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.

Switching Characteristics

(VCC = 5 V, Ta = 25°C)

Item

Symbol

Inputs

min.

typ.

max.

Unit

Condition

Maximum clock frequency

ƒmax

Clock

—

MHz

tPHL

Clear

—

tPLH

—

Propagation delay time

tPHL

Clock

—

CL = 15 pF, RL = 2 k

Ω

Testing Method

Test Circuit

4.5V

Clear

Output

VCC

Input

P.G.

Zout = 50

Ω

Clock

Input

P.G.

Zout = 50

Ω

Notes:

CL includes probe and jig capacitance.

All diodes are 1S2074(H).

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