MC74LCX574_05 Datasheet, PDF(2/8 Page) ON Semiconductor – Low-Voltage CMOS Octal D-Type Flip-Flop Flow Through Pinout With 5 V−Tolerant Inputs and Outputs (3−State, Non−Inverting)

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MC74LCX574_05 Datasheet, PDF (2/8 Pages) ON Semiconductor – Low-Voltage CMOS Octal D-Type Flip-Flop Flow Through Pinout With 5 V−Tolerant Inputs and Outputs (3−State, Non−Inverting)

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MC74LCX574

VCC O0 O1 O2 O3 O4 O5 O6 O7 CP

20 19 18 17 16 15 14 13 12 11

nCP

1 2 3 4 5 6 7 8 9 10

OE D0 D1 D2 D3 D4 D5 D6 D7 GND

Figure 1. Pinout: 20âLead (Top View)

nCP

PIN NAMES

Pins

Function

D0âD7

O0âO7

Output Enable Input

Clock Pulse Input

Data Inputs

3âState Outputs

nCP

Figure 2. LOGIC DIAGRAM

TRUTH TABLE

INPUTS

INTERNAL

LATCHES

OUTPUTS

OPERATING MODE

Load and Read Register

Hold and Read Register

Hold and Disable Outputs

Load Internal Register and Disable Outputs

H = High Voltage Level

h = High Voltage Level One Setup Time Prior to the LowâtoâHigh Clock Transition

L = Low Voltage Level

l = Low Voltage Level One Setup Time Prior to the LowâtoâHigh Clock Transition

NC = No Change

X = High or Low Voltage Level and Transitions are Acceptable

Z = High Impedance State

â = LowâtoâHigh Transition

â = Not a LowâtoâHigh Transition; For ICC Reasons, DO NOT FLOAT Inputs

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