HD74LS374_15 datasheet(5/10 Pages) RENESAS

Part #	HD74LS374

Description	Octal D-type Edge-triggered Flip-Flops (with three-state outputs)

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Manufacturer	RENESAS [Renesas Technology Corp]

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HD74LS374

Rev.2.00, Feb.18.2005, 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

2.4

—

V

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

IOH = –2.6 mA

—

0.4

IOL = 12 mA

Output voltage

VOL

—

0.5

V

IOL = 24 mA

VCC = 4.75 V,

VIH = 2 V, VIL = 0.8 V

IOZH

—

20

VO = 2.7 V

Output current

IOZL

—

–20

µA

VO = 0.4 V

VCC = 5.25 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

Input current

II

—

0.1

mA

VCC = 5.25 V, VI = 7 V

Short-circuit output current

IOS

–30

—

–130

mA

VCC = 5.25 V

Supply current

ICC

—

27

40

mA

VCC = 5.25 V,

VI = 4.5 V (Output control)

Input clamp voltage

VIK

—

–1.5

V

VCC = 4.75 V, IIN = –18 mA

Note:

* VCC = 5 V, Ta = 25°C

Switching Characteristics

(VCC = 5 V, Ta = 25°C)

Item

Symbol

Inputs

Output

min.

typ.

max.

Unit

Condition

Maximum clock frequency

ƒmax

Clock

Q

35

50

—

MHz

tPLH

—

15

28

Propagation delay time

tPHL

Clock

Q

—

19

28

tZH

—

20

28

Output enable time

tZL

OC

Q

—

21

28

CL = 45 pF,

RL = 667

Ω

tHZ

—

12

20

Output disable time

tLZ

OC

Q

—

14

25

ns

CL = 5 pF,

RL = 667

Ω

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HD74LS374 Datasheet(PDF) 5 Page - Renesas Technology Corp

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