SN74LS348中文资料8 线至 3 线优先级编码器数据手册TI规格书

描述 Description

These TTL encoders feature priority decoding of the inputs to ensure that only the highest-order data line is encoded. The 'LS348 circuits encode eight data lines to three-line (4-2-1) binary (octal). Cascading circuitry (enable input EI and enable output EO) has been provided to allow octal expansion. Outputs A0, A1, and A2 are implemented in three-state logic for easy expansion up to 64 lines without the need for external circuitry. See Typical Application Data.  

特性 Features

• 3-State Outputs Drive Bus Lines Directly
• Applications Include:
• Code Converters and Generators
• Typical Data Delay … 15 ns
• Typical Power Dissipation … 60 mW