74HCT574 Datasheet | Texas Instruments

CD54/74HC374, CD54/74HCT374, CD54/74HC574, CD54/74HCT574 Data sheet acquired from Harris Semiconductor SCHS183C February 1998 - Revised May 2004 High-Speed CMOS Logic Octal D-Type Flip-Flop, 3-State Positive-Edge Triggered [ /Title (CD74 HC374 , CD74 HCT37 4, CD74 HC574 , CD74 HCT57 Features Description - Buffered Inputs - mon Three-State Output Enable Control - Three-State Outputs - Bus Line Driving Capability - Typical Propagation Delay (Clock to Q) = 15ns at VCC = 5V, CL = 15p F, TA = 25o C - Fanout (Over Temperature Range) - Standard Outputs - - - 10 LSTTL Loads - Bus Driver Outputs - - . . . 15 LSTTL Loads - Wide Operating Temperature Range . . . -55o C to 125o C - Balanced Propagation Delay and Transition Times - Significant Power Reduction pared to LSTTL Logic ICs - HC Types - 2-V to 6-V Operation - High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V - HCT Types - 4.5-V to 5.5-V Operation - Direct LSTTL Input Logic patibility, VIL= 0.8V (Max), VIH = 2V (Min) - CMOS Input patibility, Il ≤ 1µA at VOL, VOH The ’HC374, ’HCT374, ’HC574, and ’HCT574 are octal D-type flip-flops with 3-state outputs and the capability to drive 15 LSTTL loads. The eight edge-triggered flip-flops enter data into their registers on the LOW to HIGH transition of clock (CP). The output enable (OE) controls the 3-state outputs and is independent of the register operation. When OE is HIGH, the outputs are in the high-impedance state. The 374 and 574 are identical in function and differ only in their pinout...