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D 型锁存器

74ACT16841

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具有三态输出的 20 位总线接口 D 类锁存器

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74ACT16841

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产品详情

Number of channels 20 Technology family ACT 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) 90 IOL (max) (mA) 24 IOH (max) (mA) -24 Supply current (max) (µA) 80 Features Balanced outputs, Flow-through pinout, High speed (tpd 10-50ns), Positive input clamp diode Operating temperature range (°C) -40 to 85 Rating Catalog
Number of channels 20 Technology family ACT 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) 90 IOL (max) (mA) 24 IOH (max) (mA) -24 Supply current (max) (µA) 80 Features Balanced outputs, Flow-through pinout, High speed (tpd 10-50ns), Positive input clamp diode Operating temperature range (°C) -40 to 85 Rating Catalog
SSOP (DL) 56 190.647 mm² 18.42 x 10.35
  • Members of the Texas Instruments WidebusTM Family
  • Inputs Are TTL-Voltage Compatible
  • 3-State Outputs Drive Bus Lines Directly
  • Provide Extra Bus Driving/Latches Necessary for Wider Address/Data Paths or Buses With Parity
  • Flow-Through Architecture Optimizes PCB Layout
  • Distributed VCC and GND Pin Configuration Minimizes High-Speed Switching Noise
  • EPICTM (Enhanced-Performance Implanted CMOS) 1-m Process
  • 500-mA Typical Latch-Up Immunity at 125°C
  • Package Options Include Plastic Thin Shrink Small-Outline (DGG) Packages, 300-mil Shrink Small-Outline (DL) Packages Using 25-mil Center-to-Center Pin Spacings, and 380-mil Fine-Pitch Ceramic Flat (WD) Packages Using 25-mil Center-to-Center Pin Spacings

 

EPIC and Widebus are trademarks of Texas Instruments Incorporated.
  • Members of the Texas Instruments WidebusTM Family
  • Inputs Are TTL-Voltage Compatible
  • 3-State Outputs Drive Bus Lines Directly
  • Provide Extra Bus Driving/Latches Necessary for Wider Address/Data Paths or Buses With Parity
  • Flow-Through Architecture Optimizes PCB Layout
  • Distributed VCC and GND Pin Configuration Minimizes High-Speed Switching Noise
  • EPICTM (Enhanced-Performance Implanted CMOS) 1-m Process
  • 500-mA Typical Latch-Up Immunity at 125°C
  • Package Options Include Plastic Thin Shrink Small-Outline (DGG) Packages, 300-mil Shrink Small-Outline (DL) Packages Using 25-mil Center-to-Center Pin Spacings, and 380-mil Fine-Pitch Ceramic Flat (WD) Packages Using 25-mil Center-to-Center Pin Spacings

 

EPIC and Widebus are trademarks of Texas Instruments Incorporated.

These 20-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 'ACT16841 can be used as two 10-bit latches or one 20-bit latch. The 20 latches are transparent D-type. While the latch-enable (1LE or 2LE) input is high, the Q outputs of the corresponding 10-bit latch follow the data (D) inputs. When LE is taken low, the Q outputs are latched at the levels that were set up at the D inputs.

A buffered output-enable (1 or 2) input can be used to place the outputs of the corresponding 10-bit latch in either a normal logic state (high or low logic levels) or a high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly.

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

The 74ACT16841 is packaged in TI's shrink small-outline package (DL), which provides twice the I/O pin count and functionality of standard small-outline packages in the same printed-circuit-board area.

The 54ACT16841 is characterized for operation over the full military temperature range of -55°C to 125°C. The 74ACT16841 is characterized for operation from -40°C to 85°C.

 

 

These 20-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 'ACT16841 can be used as two 10-bit latches or one 20-bit latch. The 20 latches are transparent D-type. While the latch-enable (1LE or 2LE) input is high, the Q outputs of the corresponding 10-bit latch follow the data (D) inputs. When LE is taken low, the Q outputs are latched at the levels that were set up at the D inputs.

A buffered output-enable (1 or 2) input can be used to place the outputs of the corresponding 10-bit latch in either a normal logic state (high or low logic levels) or a high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly.

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

The 74ACT16841 is packaged in TI's shrink small-outline package (DL), which provides twice the I/O pin count and functionality of standard small-outline packages in the same printed-circuit-board area.

The 54ACT16841 is characterized for operation over the full military temperature range of -55°C to 125°C. The 74ACT16841 is characterized for operation from -40°C to 85°C.

 

 
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类型 标题 下载最新的英语版本 日期
* 数据表 20-Bit Bus Interface D-Type Latches With 3-State Outputs 数据表 (Rev. A) 1996年 4月 1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 选择正确的电平转换解决方案 (Rev. A) 英语版 (Rev.A) 2006年 3月 23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 CMOS Power Consumption and CPD Calculation (Rev. B) 1997年 6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 Using High Speed CMOS and Advanced CMOS in Systems With Multiple Vcc 1996年 4月 1日

设计和开发

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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

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