74AC244 datasheet(2/8 Pages) STMICROELECTRONICS

부품명	74AC244

상세설명	OCTAL BUS BUFFER WITH 3 STATE OUTPUTS NON INVERTED

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INPUT AND OUTPUT EQUIVALENT CIRCUIT

TRUTH TABLE

INPUT

OUT PUT

GAn

Yn

LL

L

LH

H

HX

Z

X: ”H” or ”L”

Z: High impedance

PIN DESCRIPTION

PIN No

SYMBOL

NAME AND F UNCTIO N

1

1G

Output Enable Input

2, 4, 6, 8

1A1 to 1A4

Data Inputs

9, 7, 5, 3

2Y1 to 2Y4

Data Outputs

11, 13, 15, 17

2A1 to 2A4

Data Inputs

18, 16, 14, 12

1Y1 to 1Y4

Data Outputs

19

2G

Output Enabel Input

10

GND

Ground (0V)

20

VCC

Positive Supply Voltage

ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter

Val ue

Uni t

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

± 400

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

Symbol

Parameter

Value

Un it

VCC

Supply Voltage

2 to 6

V

VI

Input Voltage

0 to VCC

V

VO

Output Voltage

0 to VCC

V

Top

Operating Temperature:

-40 to +85

oC

dt/dv

Input Rise and Fall Time VCC = 3.0, 4.5 or 5.5 V(note 1)

8

ns/V

1) VIN from 30% to 70% of VCC

74AC244

2/8

유사한 부품 번호 - 74AC244

제조업체	부품명	데이터시트	상세설명
Fairchild Semiconductor	74AC244	111Kb / 10P	Octal Buffer/Line Driver with 3-STATE Outputs
ON Semiconductor	74AC244	91Kb / 8P	Octal Buffer/Line Driver with 3-State Outputs May, 2001 ??Rev. 5
ON Semiconductor	74AC244	117Kb / 9P	Octal Buffer/Line Driver with 3?뭆tate Outputs September, 2006 ??Rev. 7
STMicroelectronics	74AC244	202Kb / 9P	OCTAL BUS BUFFER WITH 3 STATE OUTPUTS (NON INVERTED)
ON Semiconductor	74AC244	396Kb / 14P	Octal Buffer/Line Driver with 3-STATE Outputs January 2008 Rev. 1.4.0

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유사한 설명 - 74AC244

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