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邏輯和電壓轉換
正反器、鎖存器和暫存器
D 型鎖存器

SN54ALS873B

現行

具有 3 態輸出的二路 4 位元 D 型鎖存器

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產品規格表

SN54ALS873B

現行
產品規格表 立即訂購

產品詳細資料

Number of channels 8 Technology family ALS Supply voltage (min) (V) 4.5 Supply voltage (max) (V) 5.5 Input type Bipolar Output type 3-State Clock frequency (max) (MHz) 75 IOL (max) (mA) 12 IOH (max) (mA) -1 Supply current (max) (µA) 31000 Features Flow-through pinout, High speed (tpd 10-50ns) Operating temperature range (°C) -55 to 125 Rating Military
Number of channels 8 Technology family ALS Supply voltage (min) (V) 4.5 Supply voltage (max) (V) 5.5 Input type Bipolar Output type 3-State Clock frequency (max) (MHz) 75 IOL (max) (mA) 12 IOH (max) (mA) -1 Supply current (max) (µA) 31000 Features Flow-through pinout, High speed (tpd 10-50ns) Operating temperature range (°C) -55 to 125 Rating Military
CDIP (JT) 24 221.44 mm² 32 x 6.92 LCCC (FK) 28 130.6449 mm² 11.43 x 11.43
  • 3-State Buffer-Type Outputs Drive Bus Lines Directly
  • Bus-Structured Pinout
  • Package Options Include Plastic Small-Outline (DW) Packages, Ceramic Chip Carriers (FK), and Plastic (NT) and Ceramic (JT) DIPs

 
  • 3-State Buffer-Type Outputs Drive Bus Lines Directly
  • Bus-Structured Pinout
  • Package Options Include Plastic Small-Outline (DW) Packages, Ceramic Chip Carriers (FK), and Plastic (NT) and Ceramic (JT) DIPs

 

These dual 4-bit D-type latches feature 3-state outputs designed specifically for bus driving. These devices are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.

The dual 4-bit latches are transparent D-type latches. While the latch-enable (LE) input is high, the Q outputs follow the data (D) inputs in true form, according to the function table. When LE is low, the outputs are latched. When the clear () input goes low, the Q outputs go low independently of LE. The outputs are in the high-impedance state when the output-enable () input is at a high logic level.

The SN54ALS873B and SN54AS873A are characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ALS873B and SN74AS873A are characterized for operation from 0°C to 70°C.

 

 

These dual 4-bit D-type latches feature 3-state outputs designed specifically for bus driving. These devices are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.

The dual 4-bit latches are transparent D-type latches. While the latch-enable (LE) input is high, the Q outputs follow the data (D) inputs in true form, according to the function table. When LE is low, the outputs are latched. When the clear () input goes low, the Q outputs go low independently of LE. The outputs are in the high-impedance state when the output-enable () input is at a high logic level.

The SN54ALS873B and SN54AS873A are characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ALS873B and SN74AS873A are characterized for operation from 0°C to 70°C.

 

 
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類型 標題 日期
* Data sheet Dual 4-Bit D-Type Latches With 3-State Outputs datasheet (Rev. D) 1995年 8月 1日
* SMD SN54ALS873B SMD 84032013A 2016年 6月 21日
Application note Power-Up Behavior of Clocked Devices (Rev. B) PDF | HTML 2022年 12月 15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
Application note Live Insertion 1996年 10月 1日
Application note Advanced Schottky (ALS and AS) Logic Families 1995年 8月 1日

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封裝 針腳 CAD 符號、佔位空間與 3D 模型
CDIP (JT) 24 Ultra Librarian
LCCC (FK) 28 Ultra Librarian
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  • 認證摘要
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