CD74HC597是TI公司的一款移位寄存器产品，CD74HC597是具有输入存储的高速 CMOS 逻辑 8 位移位寄存器，本页介绍了CD74HC597的产品说明、应用、特性等，并给出了与CD74HC597相关的TI元器件型号供参考。
CD74HC597 - 具有输入存储的高速 CMOS 逻辑 8 位移位寄存器 - 移位寄存器 - 触发器/锁存器/寄存器 - TI公司（Texas Instruments，德州仪器）
The ’HC597 and CD74HCT597 are high-speed silicon gate CMOS devices that are pin compatible with the LSTTL 597 devices. Each device consists of an 8-flip-flop input register and an 8-bit parallel-in/serial-in, serial-out shift register. Each register is controlled by its own clock. A "low" on the parallel load input (PL\) shifts parallel stored data asynchronously into the shift register. A "low" master input (MR\) clears the shift register. Serial input data can also be synchronously shifted through the shift register when PL\ is high.
- Buffered Inputs
- Asynchronous Parallel Load
- 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
