CD74HCT374 High Speed CMOS Logic Octal Positive-Edge Triggered D-Type Flip-Flops with 3-State Outputs | TI.com

CD74HCT374 (ACTIVE) High Speed CMOS Logic Octal Positive-Edge Triggered D-Type Flip-Flops with 3-State Outputs

 

Description

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 arrangements.

Features

  • Buffered Inputs
  • Common Three-State Output Enable Control
  • Three-State Outputs
  • Bus Line Driving Capability
  • Typical Propagation Delay (Clock to Q) = 15ns at VCC = 5V, CL = 15pF, TA = 25°C
  • Fanout (Over Temperature Range)
    • Standard Outputs...10 LSTTL Loads
    • Bus Driver Outputs...15 LSTTL Loads
  • Wide Operating Temperature Range...–55°C to 125°C
  • Balanced Propagation Delay and Transition Times
  • Significant Power Reduction Compared to LSTTL Logic ICs
  • HC Types
    • 2V to 6V Operation
    • High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V
  • HCT Types
    • 4.5V to 5.5V Operation
    • Direct LSTTL Input Logic Compatibility, VIL = 0.8V (Max), VIH = 2V (Min)
    • CMOS Input Compatibility, Il 1µA at VOL, VOH

Data sheet acquired from Harris Semiconductor

Parametrics

Compare all products in D-type flip-flop Email Download to Excel
Part number Order Technology Family VCC (Min) (V) VCC (Max) (V) Bits (#) Voltage (Nom) (V) F @ nom voltage (Max) (MHz) ICC @ nom voltage (Max) (mA) tpd @ nom Voltage (Max) (ns) IOL (Max) (mA) IOH (Max) (mA) 3-state output Rating Operating temperature range (C)
CD74HCT374 Order now HCT     4.5     5.5     8     5     25     0.08     41     6     -6     Yes     Catalog     -55 to 125    
CD54HCT374 Samples not available HCT     4.5     5.5     8     5     25     0.08     41     6     -6     Yes     Military     -55 to 125