文件:74HC595N.png)
74HC595
8-Bit Shift Registers With Latched 3-State Outputs
FEATURES
- Wide Operating Voltage Range of 2.0V to 6.0V
- 8-Bit Serial-Input, Serial or Parallel-Out Shift
- Outputs Directly Interface to CMOS, NMOS, and TTL
- Low Input Current: 1.0μA
- High Noise Immunity Characteristic of CMOS Devices
APPLICATIONS
- Network Switches
- Power Infrastructure
- LED Displays
- Servers
DESCRIPTION
The 74HC595 devices contain and 8-bit, serial-in, parallel-out shift register that feeds an 8-bit D-type latch with parallel 3-state outputs. Separate clocks are provided for both the shift register and latch. The shift register has a direct overriding clear input, serial input, and serial outputs for cascading. This device also has an asynchronous reset for the shift register.
74HC595
具鎖存式三態輸出的 8 位元移位暫存器
特點
- 工作電壓範圍寬：2.0V 至 6.0V
- 8 位元序列輸入、序列或平行輸出移位
- 輸出可直接介接 CMOS、NMOS 與 TTL
- 低輸入電流：1.0 μA
- 具備 CMOS 元件特有的高抗雜訊能力
應用
說明
74HC595 裝置內含一個 8 位元序列輸入、平行輸出的移位暫存器，並驅動一個具平行三態輸出的 8 位元 D 型鎖存器。移位暫存器與鎖存器各自具有獨立的時脈輸入。
移位暫存器提供具優先權的清除輸入、序列輸入，以及可用於級聯的序列輸出。此外，本裝置亦具備移位暫存器的非同步重置功能。
