ZHCSIR4Q July   1995  – September 2018 SN54LVCH245A , SN74LVCH245A

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
      1.      简化原理图
  4. 4 修订历史记录
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
    2.     Pin Assignments: ZQN Package
    3.     Pin Assignments: ZXY Package
  6. 6 Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Recommended Operating Conditions: SN74LVCH245A
    4. 6.4  Recommended Operating Conditions: SN54LVCH245A
    5. 6.5  Thermal Information
    6. 6.6  Electrical Characteristics: SN74LVCH245A
    7. 6.7  Electrical Characteristics: SN54LVCH245A
    8. 6.8  Switching Characteristics: SN74LVCH245A, –40°C TO 85°C
    9. 6.9  Switching Characteristics: SN74LVCH245A, –40°C TO 125°C
    10. 6.10 Switching Characteristics: SN54LVCH245A
    11. 6.11 Operating Characteristics
    12. 6.12 Typical Characteristics
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Balanced High-Drive CMOS Push-Pull Outputs
      2. 8.3.2 Standard CMOS Inputs
      3. 8.3.3 Negative Clamping Diodes
      4. 8.3.4 Bus-Hold Data Inputs
      5. 8.3.5 Partial Power Down (Ioff)
      6. 8.3.6 Over-voltage Tolerant Inputs
      7. 8.3.7 Output Enable
    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. 12器件和文档支持
    1. 12.1 相关链接
    2. 12.2 商标
    3. 12.3 静电放电警告
    4. 12.4 术语表
  13. 13机械、封装和可订购信息

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

5 Pin Configuration and Functions

SN54LVCH245A
20-Pin J or W Package
Top View
SN54LVCH245A SN74LVCH245A po_3_ces008.gif
SN54LVCH245A
20-Pin Count FK Package
Top View
SN54LVCH245A SN74LVCH245A po_1_ces008.gif
SN74LVCH245A
20-Pin Count DB, DGV. DW, NS or PW Package
Top View
SN54LVCH245A SN74LVCH245A PW20_pinout_ces008.gif
SN74LVCH245A
20-Pin Count RGY Package
Top View
SN54LVCH245A SN74LVCH245A po_2_ces008.gif

Pin Functions

PIN I/O DESCRIPTION
NO. NAME
1 DIR I Direction select
2 A1 I/O A1 input or output
3 A2 I/O A2 input or output
4 A3 I/O A3 input or output
5 A4 I/O A4 input or output
6 A5 I/O A5 input or output
7 A6 I/O A6 input or output
8 A7 I/O A7 input or output
9 A8 I/O A8 input or output
10 GND — Ground
11 Y8 I/O Y8 input or output
12 Y7 I/O Y7 input or output
13 Y6 I/O Y6 input or output
14 Y5 I/O Y5 input or output
15 Y4 I/O Y4 input or output
16 Y3 I/O Y3 input or output
17 Y2 I/O Y2 input or output
18 Y1 I/O Y1 input or output
19 OE I Output enable, active low
20 VCC — Positive Supply
SN54LVCH245A SN74LVCH245A pin-zqn.gif

Pin Assignments: ZQN Package

1 2 3 4
A A1 DIR VCC OE
B A3 B2 A2 B1
C A5 A4 B4 B3
D A7 B6 A6 B5
E GND A8 B8 B7
SN54LVCH245A SN74LVCH245A pin-zxy.gif

Pin Assignments: ZXY Package

1 2 3 4 5
A A7 A6 A4 A2 DIR
B A8 A5 A3 A1 VCC
C GND B6 B4 B2 OE
D B8 B7 B5 B3 B1
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