HD74LS74ARPEL datasheet(3/8 Pages) RENESAS

Part #	HD74LS74ARPEL

Description	Dual D-type Positive Edge-triggered Flip-Flops (with Preset and Clear)

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Manufacturer	RENESAS [Renesas Technology Corp]

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3 / 8 page

HD74LS74A

Rev.3.00, Jul.22.2005, page 3 of 7

Electrical Characteristics

(Ta = –20 to +75 °C)

Item

Symbol

min.

typ.*

max.

Unit

Condition

VIH

2.0

—

V

Input voltage

VIL

—

0.8

V

VOH

2.7

—

V

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

IOH = –400

µA

—

0.5

IOL = 8 mA

Output voltage

VOL

—

0.4

V

IOL = 4 mA

VCC = 4.75 V, VIL = 0.8 V,

VIH = 2 V

D

—

20

Clear

—

40

Preset

—

40

Clock

IIH

—

20

µA

VCC = 5.25 V, VI = 2.7 V

D

—

–0.4

Clear

—

–0.8

Preset

—

–0.8

Clock

IIL

—

–0.4

mA

VCC = 5.25 V, VI = 0.4 V

D

—

0.1

Clear

—

0.2

Preset

—

0.2

Input

current

Clock

II

—

0.1

mA

VCC = 5.25 V, VI = 7 V

Short-circuit output

current

IOS

–20

—

–100

mA

VCC = 5.25 V

Supply current

ICC**

—

4

8

mA

VCC = 5.25 V

Input clamp voltage

VIR

—

–1.5

V

VCC = 4.75 V, IIN = –18 mA

Notes: * VCC = 5 V, Ta = 25°C

** With all output open, ICC is measured with the Q and Q outputs high in turn. At the time of measurement, the

clock input is grounded.

Switching Characteristics

(VCC = 5 V, Ta = 25°C)

Item

Symbol

Inputs

Outputs

min.

typ.

max.

Unit

Condition

Maximum clock frequency

fmax

25

33

MHz

tPLH

—

13

25

ns

Propagation delay time

tPHL

Clear, Clock

or Preset

Q,

Q

—

25

40

ns

CL = 15 pF,

RL = 2 k

Ω

Timing Definition

Data

Clock

0 V

3 V

0 V

3 V

1.3 V

"H" Data

"L" Data

tw

tsu

th

tsu

th

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