M54HC240 查看數據表（PDF） - STMicroelectronics

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M54HC240

HC240: INVERTED - HC241/244 NON INVERTED OCTAL BUS BUFFER WITH 3 STATE OUTPUTS

STMicroelectronics 

M54/M74HC240/241/244

CHIP CARRIER

HC240

HC241

HC244

INPUT AND OUTPUT EQUIVALENT CIRCUIT

PIN DESCRIPTION (HC241)

PIN No

1

2, 4, 6, 8

9, 7, 5, 3

11, 13, 15,

17

18, 16, 14,

12

19

10

20

SYMBOL

1G

1A1 to 1A4

2Y1 to 2Y4

2A1 to 2A4

1Y1 to 1Y4

2G

GND

VCC

NAME AND FUNCTION

Output Enable Input

Data Inputs

Data Outputs

Data Inputs

Data Outputs

Output Enabel Input

Ground (0V)

Positive Supply Voltage

PIN DESCRIPTION (HC240)

PIN No

1

2, 4, 6, 8

9, 7, 5, 3

11, 13, 15,

17

18, 16, 14,

12

19

10

20

SYMBOL

1G

1A1 to 1A4

2Y1 to 2Y4

2A1 to 2A4

1Y1 to 1Y4

2G

GND

VCC

NAME AND FUNCTION

Output Enable Input

Data Inputs

Data Outputs

Data Inputs

Data Outputs

Output Enabel Input

Ground (0V)

Positive Supply Voltage

PIN DESCRIPTION (HC244)

PIN No

1

2, 4, 6, 8

9, 7, 5, 3

11, 13, 15,

17

18, 16, 14,

12

19

10

20

SYMBOL

1G

1A1 to 1A4

2Y1 to 2Y4

2A1 to 2A4

1Y1 to 1Y4

2G

GND

VCC

NAME AND FUNCTION

Output Enable Input

Data Inputs

Data Outputs

Data Inputs

Data Outputs

Output Enabel Input

Ground (0V)

Positive Supply Voltage

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