Table of Contents

1 Features............................................................................1

2 Description.......................................................................1

3 Revision History.............................................................. 2

4 Description (Continued)..................................................3

5 Pin Configuration And Functions.................................. 4

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 I2C Interface Timing Requirements.............................7

6.7 Switching Characteristics............................................7

6.8 Typical Characteristics................................................ 8

7 Parameter Measurement Information.......................... 10

8 Detailed Description......................................................13

8.1 Functional Block Diagram......................................... 13

8.2 Device Functional Modes..........................................14

8.3 Programming............................................................ 15

9 Application Information Disclaimer............................. 21

9.1 Application Information............................................. 21

10 Power Supply Recommendations..............................23

10.1 Power-On Reset Requirements.............................. 23

11 Device and Documentation Support..........................25

11.1 Support Resources................................................. 25

11.2 Trademarks............................................................. 25

11.3 Electrostatic Discharge Caution.............................. 25

11.4 Glossary.................................................................. 25

12 Mechanical, Packaging, and Orderable

Information.................................................................... 25

3 Revision History

Changes from Revision E (May 2014) to Revision F (March 2021)

Page

• Changed the Device Information table............................................................................................................... 1

• Moved the Storage temperature range from the Handling Ratings table to the Absolute Maximum Ratings

table.................................................................................................................................................................... 5

• Moved the Package thermal impedance to the Thermal Information table........................................................ 5

• Changed the VIH High-level input voltage (SDL, SDA) Max value From: 5.5 V To: VCC in the Recommended

Operating Conditions ......................................................................................................................................... 5

• Changed the VIL Low-level input voltage (A2–A0, P7–P0) Max value From: 0.8 V To: 0.3 x VCC in the

Recommended Operating Conditions ................................................................................................................5

• Added the Thermal Information table................................................................................................................. 5

• Changed the VPORR row in the Electrical Characteristics .................................................................................. 6

• Added the VPORF row in the Electrical Characteristics .......................................................................................6

• Changed the ICC Standby mode values in the Electrical Characteristics ...........................................................6

• Changed the Ci SCL Max value From: 5 pF To: 8 pF in the Electrical Characteristics ......................................6

• Changed the Cio SDA Max value From: 6.5 pF To: 9.5 pF in the Electrical Characteristics ..............................6

• Changed the tpv Output data valid MAX values From: 200 ns To 350 ns in the Switching Characteristics ....... 7

• Changed the Typical Characteristics graphs...................................................................................................... 8

• Changed the Power Supply Recommendations .............................................................................................. 23

Changes from Revision D (August 2008) to Revision E (May 2014)

Page

• Added Interrupt Errata section. ........................................................................................................................15

• Added the Power-On Reset Errata section ......................................................................................................23

PCA9554A

SCPS127F – SEPTEMBER 2006 – REVISED MARCH 2021

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