PCF8575CPWR
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Texas Instruments PCF8575CPWR

Manufacturer No:
PCF8575CPWR
Manufacturer:
Texas Instruments
Package:
Tape & Reel (TR)
Description:
IC I/O EXPANDER I2C 16B 24TSSOP
Delivery:
Payment:
iso14001
iso45001
iso9001
iso13485

Product Introduction

Overview

The PCF8575CPWR, produced by Texas Instruments, is a 16-bit I2C and SMBus I/O expander designed to provide general-purpose remote I/O expansion for most microcontroller families. This device operates within a voltage range of 2.5 to 5.5 volts and is known for its low standby current consumption of up to 10 μA. It features a quasi-bidirectional 16-bit I/O port, allowing each pin to be used as either an input or an output without the need for a data-direction control signal. The PCF8575CPWR is particularly useful in applications requiring additional I/O ports, such as in industrial control, consumer electronics, and automotive systems.

Key Specifications

Parameter Value Unit
Operating Voltage Range 2.5 to 5.5 V
Standby Current Consumption Up to 10 μA
I2C Bus Frequency Up to 400 kHz
I/O Port Configuration 16-bit quasi-bidirectional
Addressing Three hardware address pins for up to eight devices
Output Drive Capability High-current drive for directly driving LEDs
ESD Protection Exceeds JESD 22
Operating Temperature Range –40 to 85 °C

Key Features

  • I2C to parallel-port expander with a 16-bit quasi-bidirectional I/O port.
  • Low standby current consumption of up to 10 μA, making it energy-efficient.
  • High-current drive capability for directly driving LEDs.
  • ESD protection exceeding JESD 22 standards.
  • Open-drain interrupt output.
  • Three hardware address pins allowing up to eight devices to be connected on the same bus.
  • Compatible with most microcontroller families via the I2C interface).

Applications

  • Industrial control systems: For expanding I/O capabilities in industrial automation and control systems.
  • Consumer electronics: In devices such as set-top boxes, DVD players, and other consumer electronics requiring additional I/O ports.
  • Automotive systems: For use in automotive applications where additional I/O expansion is necessary.
  • Medical devices: In medical equipment where low power consumption and reliable I/O expansion are critical.

Q & A

  1. What is the operating voltage range of the PCF8575CPWR?

    The operating voltage range is from 2.5 to 5.5 volts.

  2. What is the maximum standby current consumption of the PCF8575CPWR?

    The maximum standby current consumption is up to 10 μA.

  3. What is the maximum frequency of the I2C bus for the PCF8575CPWR?

    The maximum frequency of the I2C bus is up to 400 kHz.

  4. How many devices can be connected on the same I2C bus using the PCF8575CPWR?

    Up to eight devices can be connected using the three hardware address pins.

  5. What is the output drive capability of the PCF8575CPWR?

    The device has high-current drive capability for directly driving LEDs.

  6. Does the PCF8575CPWR have ESD protection?

    Yes, it exceeds JESD 22 ESD protection standards.

  7. What is the operating temperature range of the PCF8575CPWR?

    The operating temperature range is from –40 to 85 °C.

  8. Can the PCF8575CPWR be used as both an input and an output without a data-direction control signal?

    Yes, each quasi-bidirectional I/O can be used as either an input or an output without the need for a data-direction control signal.

  9. What type of interrupt output does the PCF8575CPWR have?

    The device features an open-drain interrupt output.

  10. Is the PCF8575CPWR compatible with most microcontroller families?

    Yes, it is compatible with most microcontroller families via the I2C interface.

Product Attributes

Number of I/O:16
Interface:I²C, SMBus
Interrupt Output:Yes
Features:POR
Output Type:Open Drain
Current - Output Source/Sink:10mA, 25mA
Clock Frequency:400 kHz
Voltage - Supply:4.5V ~ 5.5V
Operating Temperature:-40°C ~ 85°C
Mounting Type:Surface Mount
Package / Case:24-TSSOP (0.173", 4.40mm Width)
Supplier Device Package:24-TSSOP
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Similar Products

Part Number PCF8575CPWR PCF8575PWR PCF8575CDWR PCF8575CPW
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Product Status Active Active Active Active
Number of I/O 16 16 16 16
Interface I²C, SMBus I²C, SMBus I²C, SMBus I²C, SMBus
Interrupt Output Yes Yes Yes Yes
Features POR POR POR POR
Output Type Open Drain Push-Pull Open Drain Open Drain
Current - Output Source/Sink 10mA, 25mA 1mA, 25mA 10mA, 25mA 10mA, 25mA
Clock Frequency 400 kHz 400 kHz 400 kHz 400 kHz
Voltage - Supply 4.5V ~ 5.5V 2.5V ~ 5.5V 4.5V ~ 5.5V 4.5V ~ 5.5V
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Package / Case 24-TSSOP (0.173", 4.40mm Width) 24-TSSOP (0.173", 4.40mm Width) 24-SOIC (0.295", 7.50mm Width) 24-TSSOP (0.173", 4.40mm Width)
Supplier Device Package 24-TSSOP 24-TSSOP 24-SOIC 24-TSSOP

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