Table of Contents
1 特性................................................................................... 1
2 应用................................................................................... 1
3 说明................................................................................... 1
4 Revision History.............................................................. 2
5 Pin Configuration and Functions...................................3
6 Specifications.................................................................. 5
6.1 Absolute Maximum Ratings........................................ 5
6.2 ESD Ratings............................................................... 5
6.3 Recommended Operating Conditions.........................5
6.4 Thermal Information....................................................5
6.5 Electrical Characteristics.............................................6
6.6 I
2
C Interface Timing Requirements.............................8
6.7 Reset Timing Requirements........................................9
6.8 Switching Characteristics............................................9
6.9 Typical Characteristics.............................................. 10
7 Parameter Measurement Information.......................... 11
8 Detailed Description......................................................13
8.1 Overview................................................................... 13
8.2 Functional Block Diagram......................................... 14
8.3 Feature Description...................................................14
8.4 Device Functional Modes..........................................15
8.5 Programming............................................................ 15
8.6 Register Maps...........................................................16
9 Application Information Disclaimer............................. 20
9.1 Application Information............................................. 20
9.2 Typical Application.................................................... 20
10 Power Supply Recommendations..............................24
10.1 Power-On Reset Requirements.............................. 24
11 Layout........................................................................... 26
11.1 Layout Guidelines................................................... 26
11.2 Layout Example...................................................... 27
12 Device and Documentation Support..........................28
12.1 Related Documentation.......................................... 28
12.2 Receiving Notification of Documentation Updates..28
12.3 Support Resources................................................. 28
12.4 Trademarks............................................................. 28
12.5 Electrostatic Discharge Caution..............................28
12.6 Glossary..................................................................28
13 Mechanical, Packaging, and Orderable
Information.................................................................... 28
4 Revision History
注：以前版本的页码可能与当前版本的页码不同
Changes from Revision F (April 2019) to Revision G (March 2021) Page
• Changed the PW and RGE package values in the Thermal Information. ..........................................................5
• Changed the V
PORR
row in the Electrical Characteristics .................................................................................. 6
• Added V
PORF
row to the Electrical Characteristics ............................................................................................ 6
• Changed the I
CC
Low inputs and High inputs values in the Electrical Characteristics .......................................6
• Changed the Power Supply Recommendations .............................................................................................. 24
Changes from Revision E (February 2015) to Revision F (April 2019) Page
• 更新了
节
3 部分.................................................................................................................................................. 1
• Changed the Pin Configuration images.............................................................................................................. 3
• Updated Pin Name for Pin 8 From: SC2 To: SD2 in the Pin Functions table..................................................... 3
• Added the Typical Characteristics section........................................................................................................ 10
Changes from Revision D (June 2014) to Revision E (February 2015) Page
• 更改了首页图...................................................................................................................................................... 1
• Added Thermal Information. .............................................................................................................................. 5
• Changed Note
(2)
in the Electrical Characteristics ............................................................................................. 6
• Added Layout Example.....................................................................................................................................27
Changes from Revision C (June 2007) to Revision D (June 2014) Page
• Added RESET Errata section........................................................................................................................... 15
• Updated Typical Application schematic. .......................................................................................................... 20
PCA9548A
ZHCSJK4G – JUNE 2009 – REVISED MARCH 2021
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