ZHCSJI7 March   2019 SN74AXCH4T245

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     功能方框图
  4. 4 修订历史记录
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 6 Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Recommended Operating Conditions
    4. 6.4  Thermal Information
    5. 6.5  Electrical Characteristics
    6. 6.6  Switching Characteristics, VCCA = 0.7 ± 0.05 V
    7. 6.7  Switching Characteristics, VCCA = 0.8 ± 0.04 V
    8. 6.8  Switching Characteristics, VCCA = 0.9 ± 0.045 V
    9. 6.9  Switching Characteristics, VCCA = 1.2 ± 0.1 V
    10. 6.10 Switching Characteristics, VCCA = 1.5 ± 0.1 V
    11. 6.11 Switching Characteristics, VCCA = 1.8 ± 0.15 V
    12. 6.12 Switching Characteristics, VCCA = 2.5 ± 0.2 V
    13. 6.13 Switching Characteristics, VCCA = 3.3 ± 0.3 V
    14. 6.14 Operating Characteristics: TA = 25°C
    15. 6.15 Typical Characteristics
  7. 7 Parameter Measurement Information
    1. 7.1 Load Circuit and Voltage Waveforms
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1  Standard CMOS Inputs
      2. 8.3.2  Balanced High-Drive CMOS Push-Pull Outputs
      3. 8.3.3  Partial Power Down (Ioff)
      4. 8.3.4  VCC Isolation
      5. 8.3.5  Over-voltage Tolerant Inputs
      6. 8.3.6  Glitch-free Power Supply Sequencing
      7. 8.3.7  Negative Clamping Diodes
      8. 8.3.8  Fully Configurable Dual-Rail Design
      9. 8.3.9  Supports High-Speed Translation
      10. 8.3.10 Bus-Hold Data Inputs
    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 Curve
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12器件和文档支持
    1. 12.1 相关文档　
    2. 12.2 接收文档更新通知
    3. 12.3 社区资源
    4. 12.4 商标
    5. 12.5 静电放电警告
    6. 12.6 术语表
  13. 13机械、封装和可订购信息

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

5 Pin Configuration and Functions

PW Package
16-Pin TSSOP
Top View
SN74AXCH4T245 PW_PackageDrawing.gif
RSV Package
16-Pin UQFN
Transparent Top View
SN74AXCH4T245 RSV_PackageDrawing.gif

Pin Functions

PIN NO. TYPE DESCRIPTION
NAME PW RSV
1A1 4 6 I/O Input/output 1A1. Referenced to VCCA.
1A2 5 7 I/O Input/output 1A2. Referenced to VCCA.
1B1 13 15 I/O Input/output 1B1. Referenced to VCCB.
1B2 12 14 I/O Input/output 1B2. Referenced to VCCB.
1DIR 2 4 I Direction-control input for ‘1’ ports
1OE 15 1 I Tri-state output-mode enable. Pull OE high to place ‘1’ outputs in tri-state mode. Referenced to VCCA.
2A1 6 8 I/O Input/output 2A1. Referenced to VCCA.
2A2 7 9 I/O Input/output 2A2. Referenced to VCCA.
2B1 11 13 I/O Input/output 2B1. Referenced to VCCB.
2B2 10 12 I/O Input/output 2B2. Referenced to VCCB.
2DIR 3 5 I Direction-control input for ‘2’ ports
2OE 14 16 I Tri-state output-mode enable. Pull OE high to place ‘2’ outputs in tri-state mode. Referenced to VCCA.
GND 8, 9 10, 11 — Ground
VCCA 1 3 — A-port power supply voltage. 0.65 V ≤ VCCA ≤ 3.6 V
VCCB 16 2 — B-port power supply voltage. 0.65 V ≤ VCCB ≤ 3.6 V