CD74HCT4543是TI公司的一款解码器/编码器/多路复用器产品，CD74HCT4543是用于 LCD 的高速 CMOS 逻辑 BCD 至 7 段锁存器/解码器/驱动器，本页介绍了CD74HCT4543的产品说明、应用、特性等，并给出了与CD74HCT4543相关的TI元器件型号供参考。
CD74HCT4543 - 用于 LCD 的高速 CMOS 逻辑 BCD 至 7 段锁存器/解码器/驱动器 - 解码器/编码器/多路复用器 - 特殊逻辑 - TI公司（Texas Instruments，德州仪器）
The CD74HCT4543 high-speed silicon-gate is a BCD-to-7 segment latch/decoder/driver designed primarily for directly driving liquid-crystal displays. While the latch enable (LD) is low, the latches are enabled to store the BCD inputs. When the latch enable is high, the latches are disabled, making the outputs transparent to the BCD inputs. The device has an active-high blanking input (BI) and a phase input (PH) to which a square wave is applied for liquid-crystal applications. This square wave also is applied to the backplane of the liquid-crystal display.
- 4.5-V to 5.5-V VCC Operation
- Input Latches for BCD Code Storage
- Blanking Capability
- Phase Input for Complementing Outputs
- Fanout (Over Temperature Range)
- Standard Outputs - 10 LSTTL Loads
- Balanced Propagation Delay and Transition Times
- Significant Power Reduction Compared to LSTTL Logic ICs
- Direct LSTTL input logic compatibility, VIL=0.8 V Maximum, VIH=2 V Minimum
- CMOS Input Compatibility, II 1µA @ VOL, VOH
