CD74HCT563是TI公司的一款D类锁存器产品，CD74HCT563是具有三态输出的高速 CMOS 逻辑八路透明反向锁存器，本页介绍了CD74HCT563的产品说明、应用、特性等，并给出了与CD74HCT563相关的TI元器件型号供参考。
CD74HCT563 - 具有三态输出的高速 CMOS 逻辑八路透明反向锁存器 - D类锁存器 - 触发器/锁存器/寄存器 - TI公司（Texas Instruments，德州仪器）
The ’HC533, ’HCT533, ’HC563, and CD74HCT563 are high speed Octal Transparent Latches manufactured with silicon gate CMOS technology. They possess the low power con-sumption of standard CMOS integrated circuits, as well as the ability to drive 15 LSTTL devices.
The outputs are transparent to the inputs when the latch enable (LE\) is high. When the latch enable (LE\) goes low the data is latched. The output enable (OE\) controls the three-state outputs. When the output enable (OE\) is high the outputs are in the high impedance state. The latch operation is independent of the state of the output enable.
The ’HC533 and ’HCT533 are identical in function to the ’HC563 and CD74HCT563 but have different pinouts. The ’HC533 and ’HCT533 are similar to the ’HC373 and ’HCT373; the latter are non-inverting types.
- Common Latch-Enable Control
- Common Three-State Output Enable Control
- Buffered Inputs
- Three-State Outputs
- Bus Line Driving Capacity
- Typical Propagation Delay = 13ns at VCC = 5V, CL = 15pF, TA = 25°C (Data 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
