74LCX374TTR(2004) データシートの表示（PDF） - STMicroelectronics

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74LCX374TTR
(Rev.:2004)

OCTAL D-TYPE FLIP FLOP NON-INVERTING (3-STATE) WITH 5V TOLERANT INPUTS AND OUTPUTS

STMicroelectronics 

74LCX374

Figure 2: Input And Output Equivalent Circuit

Table 2: Pin Description

PIN N°

1

2, 5, 6, 9, 12,

15, 16, 19

3, 4, 7, 8, 13,

14, 17, 18

11

10

20

SYMBOL

OE

Q0 to Q7

NAME AND FUNCTION

3 State Output Enable

Input (Active LOW)

3-State Outputs

D0 to D7 Data Inputs

CK

GND

VCC

Clock Input (LOW to HIGH,

edge triggered)

Ground (0V)

Positive Supply Voltage

Figure 3: Logic Diagram

Table 3: Truth Table

INPUT

OE

CK

D

H

X

X

L

X

L

L

L

H

X : Don’t Care

Z : High Impedance

OUTPUT

Q

Z

NO CHANGE

L

H

This logic diagram has not be used to estimate propagation delays

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