產品詳細資料

Technology family F Number of channels 1 Operating temperature range (°C) -55 to 125 Rating Military Supply current (max) (µA) 20000
Technology family F Number of channels 1 Operating temperature range (°C) -55 to 125 Rating Military Supply current (max) (µA) 20000
CDIP (J) 16 135.3552 mm² 19.56 x 6.92 CFP (W) 16 69.319 mm² 10.3 x 6.73 LCCC (FK) 20 79.0321 mm² 8.89 x 8.89
  • Designed Specifically for High-Speed Memory Decoders and Data Transmission Systems
  • Incorporates Three Enable Inputs to Simplify Cascading and/or Data Reception
  • Package Options Include Plastic Small-Outline Packages, Ceramic Chip Carriers, and Standard Plastic and Ceramic 300-mil DIPs
  • Designed Specifically for High-Speed Memory Decoders and Data Transmission Systems
  • Incorporates Three Enable Inputs to Simplify Cascading and/or Data Reception
  • Package Options Include Plastic Small-Outline Packages, Ceramic Chip Carriers, and Standard Plastic and Ceramic 300-mil DIPs

The ´F138 is designed to be used in high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders can be used to minimize the effects of system decoding. When employed with high-speed memories utilizing a fast enable circuit, the delay times of this decoder and the enable time of the memory are usually less than the typical access time of the memory. This means that the effective system delay introduced by the decoder is negligible.

The conditions at the binary-select inputs and the three enable inputs select one of eight output lines. Two active-low and one active-high enable inputs reduce the need for external gates or inverters when expanding. A 24-line decoder can be implemented without external inverters and a 32-line decoder requires only one inverter. An enable input can be used as a data input for demultiplexing applications.

The SN54F138 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74F138 is characterized for operation from 0°C to 70°C.

 

 

The ´F138 is designed to be used in high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders can be used to minimize the effects of system decoding. When employed with high-speed memories utilizing a fast enable circuit, the delay times of this decoder and the enable time of the memory are usually less than the typical access time of the memory. This means that the effective system delay introduced by the decoder is negligible.

The conditions at the binary-select inputs and the three enable inputs select one of eight output lines. Two active-low and one active-high enable inputs reduce the need for external gates or inverters when expanding. A 24-line decoder can be implemented without external inverters and a 32-line decoder requires only one inverter. An enable input can be used as a data input for demultiplexing applications.

The SN54F138 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74F138 is characterized for operation from 0°C to 70°C.

 

 

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類型 標題 日期
* Data sheet 3-Line To 8-Line Decoders/Demultiplexers datasheet (Rev. B) 1996年 7月 1日
* SMD SN54F138 SMD 5962-97582 2016年 6月 21日
Selection guide Logic Guide (Rev. AB) 2017年 6月 12日
Application note Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) 2015年 12月 2日
User guide LOGIC Pocket Data Book (Rev. B) 2007年 1月 16日
Application note Semiconductor Packing Material Electrostatic Discharge (ESD) Protection 2004年 7月 8日
Application note TI IBIS File Creation, Validation, and Distribution Processes 2002年 8月 29日
Application note Bus-Interface Devices With Output-Damping Resistors Or Reduced-Drive Outputs (Rev. A) 1997年 8月 1日
Application note Designing With Logic (Rev. C) 1997年 6月 1日
Application note Input and Output Characteristics of Digital Integrated Circuits 1996年 10月 1日

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封裝 針腳 CAD 符號、佔位空間與 3D 模型
CDIP (J) 16 Ultra Librarian
CFP (W) 16 Ultra Librarian
LCCC (FK) 20 Ultra Librarian

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