M74HCT574C1R 查看數據表（PDF） - STMicroelectronics

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M74HCT574C1R

HCT564 INVERTING - HCT574 NON INVERTING OCTAL D-TYPE FLIP FLOP WITH 3 STATE OUTPUT

STMicroelectronics 

M54/M74HCT564/574

INPUT AND OUTPUT EQUIVALENT CIRCUIT

PIN DESCRIPTION (HCT564)

PIN No

1

2, 3, 4, 5,

6, 7, 8, 9

12, 13, 14,

15, 16, 17,

18, 19

11

10

20

SYMBOL

OE

D0 to D7

Q0 to Q7

CLOCK

GND

VCC

NAME AND FUNCTION

3 State output Enable

Input (Active LOW)

Data Inputs

3 State outputs

Clock Input (LOW to

HIGH, edge triggered)

Ground (0V)

Positive Supply Voltage

IEC LOGIC SYMBOLS

HCT564

PIN DESCRIPTION (HCT574)

PIN No

1

2, 3, 4, 5,

6, 7, 8, 9

12, 13, 14,

15, 16, 17,

18, 19

11

10

20

SYMBOL

OE

D0 to D7

Q0 to Q7

CLOCK

GND

VCC

NAME AND FUNCTION

3 State output Enable

Input (Active LOW)

Data Inputs

3 State outputs

Clock Input (LOW to

HIGH, edge triggered)

Ground (0V)

Positive Supply Voltage

HCT574

2/13

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