SCAS572L April   1996  – July 2014 SN74LVC2244A

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Simplified Schematic
  5. 5 Revision History
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 Handling Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Switching Characteristics, -40°C to 85°C
    7. 7.7 Switching Characteristics, -40°C to 125°C
    8. 7.8 Operating Characteristics
    9. 7.9 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Trademarks
    2. 12.2 Electrostatic Discharge Caution
    3. 12.3 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

封装选项

请参考 PDF 数据表获取器件具体的封装图。

机械数据 (封装 | 引脚)
  • DGV|20
  • DB|20
  • DBQ|20
  • NS|20
  • DW|20
  • PW|20
散热焊盘机械数据 (封装 | 引脚)
订购信息

8 Detailed Description

8.1 Overview

This octal buffer and line driver is designed for 1.65-V to 3.6-V VCC operation. The SN74LVC2244A device is organized as two 4-bit line drivers with separate output-enable (OE) inputs. When OE is low, the device passes data from the A inputs to the Y outputs. When OE is high, the outputs are in the high-impedance state. The outputs, which are designed to sink up to 12 mA, include equivalent 26-ohm resistors to reduce overshoot and undershoot.

8.2 Functional Block Diagram

ld_cas572.gif

8.3 Feature Description

  • Wide operating voltage range
    • Operates from 1.65 V to 3.6 V
  • Allows down voltage translation
    • Inputs accept voltages to 5.5 V
  • Ioff Feature
    • Allows voltages on the inputs and outputs when VCC is 0 V

8.4 Device Functional Modes

Table 1. Function Table
(Each Buffer)

INPUTS OUTPUT
Y
OE A
L H H
L L L
H X Z