CD74HC574 - 具有三态输出的高速 CMOS 逻辑八路上升沿 D 类触发器

CD74HC574是TI德州仪器公司的一款D类触发器产品，CD74HC574是具有三态输出的高速 CMOS 逻辑八路上升沿 D 类触发器，本站介绍了CD74HC574的封装应用图解、特点和优点、功能等，并给出了与CD74HC574相关的TI元器件型号供参考。

CD74HC574 - 具有三态输出的高速 CMOS 逻辑八路上升沿 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 ’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.

产品特性

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

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