CD74HC564 - 具有三态输出的高速 CMOS 逻辑八路上升沿反向 D 类触发器

CD74HC564是TI德州仪器公司的一款D类触发器产品，CD74HC564是具有三态输出的高速 CMOS 逻辑八路上升沿反向 D 类触发器，本站介绍了CD74HC564的封装应用图解、特点和优点、功能等，并给出了与CD74HC564相关的TI元器件型号供参考。

CD74HC564 - 具有三态输出的高速 CMOS 逻辑八路上升沿反向 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 ’HC534, ’HCT534, ’HC564, and ’HCT564 are high speed Octal D-Type Flip-Flops manufactured with silicon gate CMOS technology. They possess the low power consumption of stan-dard CMOS integrated circuits, as well as the ability to drive 15 LSTTL loads. Due to the large output drive capability and the three-state feature, these devices are ideally suited for interfacing with bus lines in a bus organized system. The two types are functionally identical and differ only in their pinout arrangements.

The ’HC534, ’HCT534, ’HC564, and ’HCT564 are positive edge triggered flip-flops. Data at the D inputs, meeting the setup and hold time requirements, are inverted and trans-ferred to the Q outputs on the positive going transition of the CLOCK input. When a high logic level is applied to the OUT-PUT ENABLE input, all outputs go to a high impedance state, regardless of what signals are present at the other inputs and the state of the storage elements.

The HCT logic family is speed, function, and pin compatible with the standard LS logic family.

产品特性

Buffered Inputs
Common Three-State Output-Enable Control
Three-State Outputs
Bus Line Driving Capability
Typical Propagation Delay = 13ns at VCC = 5V, CL = 15pF, TA = 25°C (Clock to Output)
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

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