CD74HCT4543 - 用于 LCD 的高速 CMOS 逻辑 BCD 至 7 段锁存器/解码器/驱动器

CD74HCT4543是TI德州仪器公司的一款解码器/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，本站介绍了CD74HCT4543的封装应用图解、特点和优点、功能等，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 - 德州仪器

产品描述

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.

产品特性

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

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