SN74HC148 - 8 线路至 3 路线优先级编码器

SN74HC148是TI德州仪器公司的一款解码器/编码器/多路复用器产品，SN74HC148是8 线路至 3 路线优先级编码器，本站介绍了SN74HC148的封装应用图解、特点和优点、功能等，并给出了与SN74HC148相关的TI元器件型号供参考。

SN74HC148 - 8 线路至 3 路线优先级编码器 - 解码器/编码器/多路复用器 - 特殊逻辑 - 德州仪器

产品描述

The ’HC148 devices feature priority decoding of the inputs to ensure that only the highest-order data line is encoded. These devices encode eight data lines to 3-line (4-2-1) binary (octal). Cascading circuitry (enable input EI and enable output EO) has been provided to allow octal expansion without the need for external circuitry. Data inputs and outputs are active at the low logic level.

产品特性

Wide Operating Voltage Range of 2 V to 6 V
Outputs Can Drive Up To 10 LSTTL Loads
Low Power Consumption, 80-µA Max ICC
Typical tpd = 16 ns
±4-mA Output Drive at 5 V
Low Input Current of 1 µA Max
Encode Eight Data Lines to 3-Line Binary (Octal)
Applications Include:
- n-Bit Encoding
- Code Converters and Generators

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