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D 型锁存器

SN54BCT373

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具有三态输出的八路透明 D 类锁存器

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数据表

SN54BCT373

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产品详情

Number of channels 8 Technology family BCT Supply voltage (min) (V) 4.5 Supply voltage (max) (V) 5.5 Input type TTL-Compatible CMOS Output type 3-State Clock frequency (max) (MHz) 70 IOL (max) (mA) 48 IOH (max) (mA) -12 Supply current (max) (µA) 60000 Features Ultra high speed (tpd <5ns) Operating temperature range (°C) -55 to 125 Rating Military
Number of channels 8 Technology family BCT Supply voltage (min) (V) 4.5 Supply voltage (max) (V) 5.5 Input type TTL-Compatible CMOS Output type 3-State Clock frequency (max) (MHz) 70 IOL (max) (mA) 48 IOH (max) (mA) -12 Supply current (max) (µA) 60000 Features Ultra high speed (tpd <5ns) Operating temperature range (°C) -55 to 125 Rating Military
CDIP (J) 20 167.464 mm² 24.2 x 6.92 LCCC (FK) 20 79.0321 mm² 8.89 x 8.89
  • Operating Voltage Range of 4.5 V to 5.5 V
  • State-of-the-Art BiCMOS Design Significantly Reduces ICCZ
  • Full Parallel Access for Loading
  • 3-State Outputs Drive Bus Lines or Buffer Memory Address Registers
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
  • Operating Voltage Range of 4.5 V to 5.5 V
  • State-of-the-Art BiCMOS Design Significantly Reduces ICCZ
  • Full Parallel Access for Loading
  • 3-State Outputs Drive Bus Lines or Buffer Memory Address Registers
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)

These 8-bit latches feature 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. They are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.

The eight latches of the ’BCT373 devices are transparent D-type latches. While the latch-enable (LE) input is high, the Q outputs follow the data (D) inputs. When the latch enable is taken low, the Q outputs are latched at the logic levels that were set up at the D inputs.

A buffered output-enable (OE)\ input can be used to place the eight outputs in either a normal logic state (high or low logic levels) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines without interface or pullup components.

To ensure the high-impedance state during power up or power down, OE\ should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

OE\ does not affect the internal operations of the latches. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.

These 8-bit latches feature 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. They are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.

The eight latches of the ’BCT373 devices are transparent D-type latches. While the latch-enable (LE) input is high, the Q outputs follow the data (D) inputs. When the latch enable is taken low, the Q outputs are latched at the logic levels that were set up at the D inputs.

A buffered output-enable (OE)\ input can be used to place the eight outputs in either a normal logic state (high or low logic levels) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines without interface or pullup components.

To ensure the high-impedance state during power up or power down, OE\ should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

OE\ does not affect the internal operations of the latches. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.
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类型 标题 下载最新的英语版本 日期
* 数据表 SN54BCT373, SN74BCT373 数据表 (Rev. D) 2003年 3月 11日
* SMD SN54BCT373 SMD 5962-90746 2016年 6月 21日
应用手册 Power-Up Behavior of Clocked Devices (Rev. B) PDF | HTML 2022年 12月 15日
应用手册 Implications of Slow or Floating CMOS Inputs (Rev. E) 2021年 7月 26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 Bus-Interface Devices With Output-Damping Resistors Or Reduced-Drive Outputs (Rev. A) 1997年 8月 1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 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) 20 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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