CD74HC74 - 具有设置和复位功能的高速 CMOS 逻辑双路上升沿 D 类触发器

CD74HC74是TI德州仪器公司的一款D类触发器产品，CD74HC74是具有设置和复位功能的高速 CMOS 逻辑双路上升沿 D 类触发器，本站介绍了CD74HC74的封装应用图解、特点和优点、功能等，并给出了与CD74HC74相关的TI元器件型号供参考。

CD74HC74 - 具有设置和复位功能的高速 CMOS 逻辑双路上升沿 D 类触发器 - D类触发器 - 触发器/锁存器/寄存器 - 德州仪器

产品描述

The ’HC74 and ’HCT74 utilize silicon gate CMOS technology to achieve operating speeds equivalent to LSTTL parts. They exhibit the low power consumption of standard CMOS integrated circuits, together with the ability to drive 10 LSTTL loads.

This flip-flop has independent DATA, SET\, RESET\ and CLOCK inputs and Q and Q\ outputs. The logic level present at the data input is transferred to the output during the positive-going transition of the clock pulse. SET\ and RESET\ are independent of the clock and are accomplished by a low level at the appropriate input.

The HCT logic family is functionally as well as pin compatible with the standard LS logic family.

产品特性

Hysteresis on Clock Inputs for Improved Noise Immunity and Increased Input Rise and Fall Times
Asynchronous Set and Reset
Complementary Outputs
Buffered Inputs
Typical fMAX = 50MHz 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

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