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D 型触发器

SN54LS74A

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具有预设和清零功能的双通道 D 类上升沿触发器

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数据表

SN54LS74A

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产品详情

Number of channels 2 Technology family LS Supply voltage (min) (V) 4.5 Supply voltage (max) (V) 5.5 Input type Bipolar Output type Push-Pull Clock frequency (max) (MHz) 25 IOL (max) (mA) 8 IOH (max) (mA) -0.4 Supply current (max) (µA) 8000 Features High speed (tpd 10-50ns) Operating temperature range (°C) -55 to 125 Rating Military
Number of channels 2 Technology family LS Supply voltage (min) (V) 4.5 Supply voltage (max) (V) 5.5 Input type Bipolar Output type Push-Pull Clock frequency (max) (MHz) 25 IOL (max) (mA) 8 IOH (max) (mA) -0.4 Supply current (max) (µA) 8000 Features High speed (tpd 10-50ns) Operating temperature range (°C) -55 to 125 Rating Military
CDIP (J) 14 130.4652 mm² 19.56 x 6.67 CFP (W) 14 58.023 mm² 9.21 x 6.3 LCCC (FK) 20 79.0321 mm² 8.89 x 8.89
  • Package Options Include Plastic “Small Outline" Packages, Ceramic Chip Carriers and Flat Packages, and Plastic and Ceramic DIPs
  • Dependable Texas Instruments Quality and Reliability

 
  • Package Options Include Plastic “Small Outline" Packages, Ceramic Chip Carriers and Flat Packages, and Plastic and Ceramic DIPs
  • Dependable Texas Instruments Quality and Reliability

 

These devices contain two independent D-type positive-edge-triggered flip-flops. A low level at the preset or clear inputs sets or resets the outputs regardless of the levels of the other inputs. When preset and clear are inactive (high), data at the D input meeting the setup time requirements are transferred to the outputs on the positive-going edge of the clock pulse. Clock triggering occurs at a voltage level and is not directly related to the rise time of the clock pulse. Following the hold time interval, data at the D input may be changed without affecting the levels at the outputs.

The SN54' family is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74' family is characterized for operation from 0°C to 70°C.

 

These devices contain two independent D-type positive-edge-triggered flip-flops. A low level at the preset or clear inputs sets or resets the outputs regardless of the levels of the other inputs. When preset and clear are inactive (high), data at the D input meeting the setup time requirements are transferred to the outputs on the positive-going edge of the clock pulse. Clock triggering occurs at a voltage level and is not directly related to the rise time of the clock pulse. Following the hold time interval, data at the D input may be changed without affecting the levels at the outputs.

The SN54' family is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74' family is characterized for operation from 0°C to 70°C.

 
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类型 标题 下载最新的英语版本 日期
* 数据表 Dual D-Type Positive-Edge -Triggered Flip-Flops With Preset And Clear 数据表 1988年 3月 1日
应用手册 Power-Up Behavior of Clocked Devices (Rev. B) PDF | HTML 2022年 12月 15日
选择指南 Logic Guide (Rev. AB) 2017年 6月 12日
应用手册 Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) 2015年 12月 2日
选择指南 逻辑器件指南 2014 (Rev. AA) 最新英语版本 (Rev.AB) 2014年 11月 17日
用户指南 LOGIC Pocket Data Book (Rev. B) 2007年 1月 16日
应用手册 Semiconductor Packing Material Electrostatic Discharge (ESD) Protection 2004年 7月 8日
应用手册 TI IBIS File Creation, Validation, and Distribution Processes 2002年 8月 29日
应用手册 使用逻辑器件进行设计 (Rev. C) 1997年 6月 1日
应用手册 Designing with the SN54/74LS123 (Rev. A) 1997年 3月 1日
应用手册 Input and Output Characteristics of Digital Integrated Circuits 1996年 10月 1日
应用手册 Live Insertion 1996年 10月 1日

设计和开发

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封装 引脚 CAD 符号、封装和 3D 模型
CDIP (J) 14 Ultra Librarian
CFP (W) 14 Ultra Librarian
LCCC (FK) 20 Ultra Librarian
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订购和质量

包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

支持和培训

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