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SN54LVCH245A
,
SN74LVCH245A
ZHCSIR4Q –JULY 1995–REVISED SEPTEMBER 2018
www.ti.com.cn
Copyright © 1995–2018, Texas Instruments Incorporated
目目录录
1 特特性性.......................................................................... 1
2 应应用用.......................................................................... 1
3 说说明明.......................................................................... 1
4 修修订订历历史史记记录录 ........................................................... 2
5 Pin Configuration and Functions......................... 4
6 Specifications......................................................... 7
6.1 Absolute Maximum Ratings ..................................... 7
6.2 ESD Ratings.............................................................. 7
6.3 Recommended Operating Conditions:
SN74LVCH245A ....................................................... 8
6.4 Recommended Operating Conditions:
SN54LVCH245A ....................................................... 9
6.5 Thermal Information.................................................. 9
6.6 Electrical Characteristics: SN74LVCH245A............ 10
6.7 Electrical Characteristics: SN54LVCH245A............ 11
6.8 Switching Characteristics: SN74LVCH245A, –40°C
TO 85°C ................................................................... 12
6.9 Switching Characteristics: SN74LVCH245A, –40°C
TO 125°C................................................................. 12
6.10 Switching Characteristics: SN54LVCH245A......... 13
6.11 Operating Characteristics...................................... 13
6.12 Typical Characteristics.......................................... 13
7 Parameter Measurement Information ................ 14
8 Detailed Description ............................................ 16
8.1 Overview ................................................................. 16
8.2 Functional Block Diagram ....................................... 16
8.3 Feature Description................................................. 16
8.4 Device Functional Modes........................................ 18
9 Application and Implementation ........................ 19
9.1 Application Information............................................ 19
9.2 Typical Application ................................................. 19
10 Power Supply Recommendations ..................... 20
11 Layout................................................................... 21
11.1 Layout Guidelines ................................................. 21
11.2 Layout Example .................................................... 21
12 器器件件和和文文档档支支持持 ..................................................... 22
12.1 相关链接................................................................ 22
12.2 商标 ....................................................................... 22
12.3 静电放电警告......................................................... 22
12.4 术语表 ................................................................... 22
13 机机械械、、封封装装和和可可订订购购信信息息....................................... 22
4 修修订订历历史史记记录录
Changes from Revision P (July 2014) to Revision Q Page
• 已更改 更改了器件型号列以包括特定可订购器件。................................................................................................................ 1
• Removed package name GQN. ............................................................................................................................................ 6
• Added ZXY package pinout section. ..................................................................................................................................... 6
• Changed Handling Ratings to ESD ratings. .......................................................................................................................... 7
• Deleted storage temperature from ESD Ratings table........................................................................................................... 7
• Changed only include commercial device specifications in this table. ................................................................................. 10
• Added new table for military device specifications. ............................................................................................................. 11
• 已删除 bulleted list of features. ............................................................................................................................................ 16
• 已添加 Output Types, Input Types, Clamp Diode Structure, and Special Features sections. ............................................ 16
Changes from Revision O (December 2005) to Revision P Page
• 将文档更新成了新的 TI 数据表标准。..................................................................................................................................... 1
• 已删除 订购信息表。 .............................................................................................................................................................. 1
• 更新了 I
off
特性项目符号。 ...................................................................................................................................................... 1
• 已添加 将“军用免责声明”添加到 特性 列表的顺序。............................................................................................................... 1
• 已添加 应用............................................................................................................................................................................. 1
• 已添加 添加了器件信息表. ...................................................................................................................................................... 1
• Added Handling Ratings table................................................................................................................................................ 7
• Changed MAX operating temperature to 125°C. ................................................................................................................... 8
• Added Thermal Information table. .......................................................................................................................................... 9
• Added –40°C TO 125°C to Electrical Characteristics table.................................................................................................. 10
• Added data to –40°C TO 85°C Switching Characteristics table........................................................................................... 12
• Added Switching Characteristics table for –40°C to 125°C for SN74LVCH245A. ............................................................... 12
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