HD74LS373FPEL 查看數據表（PDF） - Renesas Electronics

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HD74LS373FPEL

Octal D-type Transparent Latches (with three-state outputs)

Renesas Electronics 

HD74LS373

Function Table

Inputs

Output control

Enable G

D

L

H

H

L

H

L

L

L

X

H

X

X

Notes: H; high level, L; low level, X; irrelevant

Q0; level of Q before the indicated steady-state input conditions were established

Z; off (high-impedance) state of a three-state output

Block Diagram

1Q

2Q

3Q

4Q

5Q

6Q

7Q

Output

Q

H

L

Q0

Z

8Q

Q

Q

Q

Q

Q

Q

Q

Q

DG

DG

DG

DG

DG

DG

DG

DG

Output 1D

2D

3D

4D

5D

6D

7D

8D Enable

Control

G

Absolute Maximum Ratings

Item

Symbol

Ratings

Supply voltage

VCC

7

Input voltage

VIN

7

Power dissipation

PT

400

Storage temperature

Tstg

–65 to +150

Note: Voltage value, unless otherwise noted, are with respect to network ground terminal.

Recommended Operating Conditions

Item

Symbol

Min

Typ

Max

Supply voltage

VCC

4.75

5.00

5.25

Output voltage

VOH

—

—

5.5

Output current

IOH

—

IOL

—

—

–2.6

—

24

Operating temperature

Topr

–20

25

75

“H” Level

15

—

—

Enable pulse width

“L” Level

tw

15

—

—

Data setup time

Data hold time

tsu

5↓

—

—

th

20↓

—

—

Unit

V

V

mW

°C

Unit

V

V

mA

mA

°C

ns

ns

ns

ns

Rev.2.00, Feb.18.2005, page 2 of 7

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