U74HCT374

UNISONIC TECHNOLOGIES CO., LTD U74HCT374 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS „ DESCRIPTION CMOS IC The U74HCT374 is a octal edge-triggered D-type flip-flops with 3-state outputs and it has 8 channels. When the OE input is low, on the positive transition of the clock (CLK) input, the Q outputs are set to the logic levels of the data (D) inputs. When the OE input is high, the outputs are in the high-impedance. To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pull-up resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. TSSOP-20 „ FEATURES * Inputs are TTL-Voltage Compatible * Operate from 4.5V to 5.5V * Inputs Accept Voltages to 5.5V * Max tpd of 25ns at VCC=5.5V, CL=50pF * Typ VOL< 0.26V at VCC=4.5V, IOL=6mA, TA=25°C * Typ VOH> 3.98V at VCC=4.5V, IOH=-6mA, TA=25°C www.DataSheet.net/ „ ORDERING INFORMATION Ordering Number Lead Free Halogen Free U74HCT374L-P20-R U74HCT374G-P20-R U74HCT374L-P20-T U74HCT374G-P20-T Package TSSOP-20 TSSOP-20 Packing Tape Reel Tube www.unisonic.com.tw Copyright © 2011 Unisonic Technologies Co., Ltd 1 of 6 QW-R502-646.A Datasheet pdf - http://www.DataSheet4U.co.kr/ U74HCT374 „ PIN CONFIGURATION CMOS IC „ FUNCTION TABLE INPUTS( OE ) L L L H INPUTS(CLK) ↑ ↑ H or L X INPUTS(D) H L X X OUTPUT(Q) H L Q0 Z „ LOGIC SYMBOL OE 1 CLK 11 1D 3 2D 3D 4D 4 7 8 EN C1 1D 2 1Q 5 2Q 6 3Q 9 4Q www.DataSheet.net/ 5D 13 6D 14...