SCPS133K December   2005  – December 2024 PCA9557

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 I2C Interface Timing Requirements
    7. 5.7 Reset Timing Requirements
    8. 5.8 Switching Characteristics
    9. 5.9 Typical Characteristics
  7. 6 Parameter Measurement Information
  8. 7 Detailed Description
    1. 7.1 Functional Block Diagram
    2. 7.2 Feature Description
      1. 7.2.1 RESET
        1. 7.2.1.1 RESET Errata
          1. 7.2.1.1.1 System Impact
          2. 7.2.1.1.2 System Workaround
      2. 7.2.2 Power-On Reset
    3. 7.3 Programming
      1. 7.3.1 I2C Interface
    4. 7.4 Register Maps
      1. 7.4.1 Device Address
      2. 7.4.2 Control Register And Command Byte
      3. 7.4.3 Register Descriptions
        1. 7.4.3.1 Bus Transactions
          1. 7.4.3.1.1 Writes
          2. 7.4.3.1.2 Reads
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Detailed Design Procedure
        1. 8.2.1.1 Minimizing ICC when I/O is Used to Control LED
    3. 8.3 Power Supply Recommendations
      1. 8.3.1 Power-On Reset Errata
        1. 8.3.1.1 System Impact
  10. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

5.5 Electrical Characteristics

over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS VCC MIN TYP(1) MAX UNIT
VIK Input diode clamp voltage II = –18mA 2.3V to 5.5V –1.2 V
VPOR Power-on reset voltage VI = VCC or GND, IO = 0 VPOR 1.65 2.1 V
VOH P-port high-level output voltage (3) IOH = –8mA 2.3V 1.8 V
3V 2.6
4.5V 3
4.75V 4.1
IOH = –10mA 2.3V 1.5
3V 2.5
4.5V 3
4.75V 4
IOL SDA VOL = 0.4V 2.3V to 5.5V 3 mA
P port (2) VOL = 0.5V 2.3V to 5.5V 8 20
VOL = 0.55V 8 20
VOL = 0.7V 10 24
IOH P port, except for P0(2) VOH = 2.3V 2.3V to 5.5V –4 mA
P0 (2) VOH = 4.6V 4.6V to 5.5V 1 μA
VOH = 3.3V 3.3V to 5.5V 1
II SCL, SDA VI = VCC or GND 2.3V to 5.5V ±1 μA
A2–A0, RESET ±1
IIH P port VI = VCC 2.3V to 5.5V 1 μA
IIL P port VI = GND 2.3V to 5.5V 1 μA
ICC Operating mode VI = VCC or GND, IO = 0, I/O = inputs, fSCL = 400 kHz 5.5V 19 25 μA
3.6V 12 22
2.7V 8 20
VI = VCC or GND, IO = 0, I/O = inputs, fSCL = 100 kHz 5.5V 1.5 5
3.6V 1 4
2.7V 0.6 3
Standby mode VI = VCC or GND, IO = 0, I/O = inputs, fSCL = 0 kHz 5.5V 0.25 1
3.6V 0.25 0.9
2.7V 0.2 0.8
ΔICC Additional current in standby mode One input at VCC – 0.6 V, Other inputs at VCC or GND 2.3V to 5.5V 0.2 mA
Every LED I/O at VI = 4.3 V, fSCL = 0 kHz 5.5V 0.4
CI SCL VI = VCC or GND 2.3V to 5.5 V 4 6 pF
Cio SDA VIO = VCC or GND 2.3V to 5.5V 5.5 8 pF
P port 7.5 9.5
(1) All typical values are at nominal supply voltage (2.5, 3.3, or 5V VCC) and TA = 25°C.
(2) Each I/O must be externally limited to a maximum of 25mA, and the P port (P7–P0) must be limited to a maximum current of 200mA.
(3) The total current sourced by all I/Os must be limited to 85mA per bit.