CD74HC4543 - 用于 LCD 的高速 CMOS 逻辑 BCD 至 7 段锁存器/解码器/驱动器

CD74HC4543是TI德州仪器公司的一款解码器/编码器/多路复用器产品，CD74HC4543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CD74HC4543的封装应用图解、特点和优点、功能等，并给出了与CD74HC4543相关的TI元器件型号供参考。

CD74HC4543 - 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 CD74HC4543 high-speed silicon-gate device is a BCD to 7-segment latch/decoder/driver designed primarily for directly driving liquid-crystal displays. It has an active-high disable input (LD), 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.

This device also can be used, in conjunction with current amplifying devices, for driving LEDs, incandescent, fluorescent, and gas-discharge displays. For these applications the phase input provides a means to obtain active-high or active-low segment outputs. (See the Function Table.)

产品特性

Input Latches for BCD Code Storage
Blanking Capability
Phase Input for Complementing Outputs
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

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