SCPS131J
August 2005 – March 2021
PCA9555
PRODUCTION DATA
1
Features
2
Applications
3
Description
4
Revision History
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
I2C Interface Timing Requirements
6.7
Switching Characteristics
6.8
Typical Characteristics
7
Parameter Measurement Information
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Device Features
8.3.1
Power-On Reset (POR)
8.3.2
I/O Port
8.4
Device Functional Modes
8.4.1
Interrupt ( INT) Output
8.4.1.1
Interrupt Errata
8.4.1.1.1
INT Description
8.4.1.1.2
System Impact
8.4.1.1.3
System Workaround
8.5
Programming
8.5.1
I2C Interface
8.5.2
Register Map
8.5.2.1
Device Address
8.5.2.2
Control Register And Command Byte
8.5.2.3
Register Descriptions
8.5.2.4
Bus Transactions
8.5.2.4.1
Writes
8.5.2.4.2
Reads
9
Application Information Disclaimer
9.1
Application Information
9.1.1
Typical Application
9.1.1.1
Design Requirements
9.1.1.2
Design Requirements
9.1.1.2.1
Minimizing ICC When I/O Is Used To Control Led
9.1.1.3
Application Curves
10
Power Supply Recommendations
10.1
Power-On Reset Requirements
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
Device and Documentation Support
12.1
Receiving Notification of Documentation Updates
12.2
Support Resources
12.3
Trademarks
12.4
Electrostatic Discharge Caution
12.5
Glossary
13
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
DGV|24
MPDS006C
PW|24
MPDS363A
DBQ|24
MPDS211A
RGE|24
MPQF124G
DW|24
MPDS174A
DB|24
MPDS509
Thermal pad, mechanical data (Package|Pins)
RGE|24
QFND008AA
Orderable Information
scps131j_oa
scps131j_pm
1
Features
Low Standby-Current Consumption of 1 μA Max
I
2
C to Parallel Port Expander
Open-Drain Active-Low Interrupt Output
5-V Tolerant I/O Ports
Compatible With Most Microcontrollers
400-kHz Fast I
2
C Bus
Address by Three Hardware Address Pins for Use of up to Eight Devices
Polarity Inversion Register
Latched Outputs With High-Current Drive Capability for Directly Driving LEDs
Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
ESD Protection Exceeds JESD 22
2000-V Human-Body Model (A114-A)
200-V Machine Model (A115-A)
1000-V Charged-Device Model (C101)