74ACT125(1997) 查看數據表（PDF） - STMicroelectronics

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74ACT125
(Rev.:1997)

QUAD BUS BUFFERS (3-STATE)

STMicroelectronics 

74ACT125

INPUT AND OUTPUT EQUIVALENT CIRCUIT

PIN DESCRIPTION

PIN No

1, 4, 10, 13

2, 5, 9, 12

3, 6, 8, 11

7

14

SYMBOL

G1 to G4

A1 to A4

Y1 to Y4

GND

VCC

NAME AND FUNCTION

Output Enable Inputs

Data Inputs

Data Outputs

Ground (0V)

Positive Supply Voltage

TRUTH TABLE

A

G

Y

X

H

Z

L

L

L

H

L

H

ABSOLUTE MAXIMUM RATINGS

Sy mb o l

Parameter

Value

Unit

VCC Supply Voltage

-0.5 to +7

V

VI

DC Input Voltage

-0.5 to VCC + 0.5

V

VO

DC Output Voltage

-0.5 to VCC + 0.5

V

IIK

DC Input Diode Current

± 20

mA

IOK

DC Output Diode Current

± 20

mA

IO

DC Output Current

± 50

mA

ICC or IGND DC VCC or Ground Current

± 200

mA

Tstg Storage Temperature

-65 to +150

oC

TL

Lead Temperature (10 sec)

300

oC

Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied.

RECOMMENDED OPERATING CONDITIONS

Sy mb o l

P a ra met er

VCC Supply Voltage

VI

Input Voltage

VO

Output Voltage

Top Operating Temperature:

dt/dv Input Rise and Fall Time VCC = 4.5 to 5.5V (note 1)

1) VIN from 0.8 V to 2.0 V

V alu e

4.5 to 5.5

0 to VCC

0 to VCC

-40 to +85

8

Unit

V

V

V

oC

ns/V

2/8

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