MC74LCX374DTR2G ON Semiconductor

MC74LCX374 Low-Voltage CMOS Octal D-Type Flip-Flop With 5 VTolerant Inputs and Outputs (3State, NonInverting) MC74LCX374 1 OE 11 CP 2 CP V O7 D7 D6 O6 O5 D5 D4 O4 CP O0 CC 3 Q D0 D 20 19 18 17 16 15 14 13 12 11 5 CP O1 4 Q D1 D 6 CP O2 7 Q 1 2 3456 7 8 9 10 D2 D OE O0 D0 D1 O1 O2 D2 D3 O3 GND 9 CP Figure 1. Pinout: 20Lead (Top View) O3 8 Q D3 D 12 CP O4 13 Q D4 D PIN NAMES 15 CP Pins Function O5 14 Q D5 D OE Output Enable Input CP Clock Pulse Input 16 CP D0D7 Data Inputs O6 17 Q D6 D O0O7 3State Outputs 19 CP O7 18 Q D7 D Figure 2. LOGIC DIAGRAM TRUTH TABLE INPUTS OUTPUTS OE CP Dn On OPERATING MODE L l L Load and Read Register L h H L X NC Hold and Read Register H X Z Hold and Disable Outputs H l Z Load Internal Register and Disable Outputs H h Z H = High Voltage Level h = High Voltage Level One Setup Time Prior to the LowtoHigh Clock Transition L = Low Voltage Level l = Low Voltage Level One Setup Time Prior to the LowtoHigh Clock Transition NC = No Change, State Prior to LowtoHigh Clock Transition X = High or Low Voltage Level and Transitions are Acceptable Z = High Impedance State = LowtoHigh Transition = Not a LowtoHigh Transition For I Reasons, DO NOT FLOAT Inputs CC