PCF8574ATS/3,118 The PCF8574ATS/3,118 from NXP Semiconductors is an 8-bit I2C-bus to parallel port expander. It operates from 2.5V to 6V and features a 100kHz I2C-bus interface.
Mfr Part #:

PCF8574ATS/3,118

Available from 2 distributors
Mfr Name: NXP Semiconductors
NXP Semiconductors
The PCF8574ATS/3,118 from NXP Semiconductors is an 8-bit I2C-bus to parallel port expander. It operates from 2.5V to 6V and features a 100kHz I2C-bus interface.
Total Stock: 6,333 pcs
$ Price Range: $1.15

PCF8574ATS/3,118 Available from 2 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
4,000 pcs
4000 pcs On Request 1 On Request On Request On Request On Request 2026-02-16 21:33:16
Non-Authorised Inventory information
2,333 pcs
2333 pcs On Request 1 On Request On Request On Request On Request On Request

PCF8574ATS/3,118 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Frequency
Current
ESD Protection
Features
Interface
Interrupt Output
Mounting Type
Number of I
Operating Temperature
Output Type
Supplier Device Package
Supplier Package
Voltage

PCF8574ATS/3,118 Description

Short technical summary and product information.

The PCF8574ATS/3,118 is an 8-bit remote I/O expander from NXP Semiconductors that utilizes a two-wire bidirectional I2C-bus interface. It operates over a supply voltage range of 2.5 V to 6 V and supports a 100 kHz I2C-bus interface.

 

This device features eight quasi-bidirectional ports that can be independently assigned as inputs or outputs. The latched output ports can directly drive LEDs, and the total package sink capability is 80 mA. An active LOW open-drain interrupt output is included, which is activated when any input state differs from its corresponding input port register state.

 

The PCF8574ATS/3,118 is available in a 20-SSOP package and is designed for surface mount applications. It operates within a temperature range of -40°C to 85°C. The device also offers low standby current consumption of 2.5 µA typical.

 

Applications for this I/O expander include LED signs and displays, servers, keypads, industrial control, and mobile devices.

PCF8574ATS/3,118 Quick Information

Product Type: IO Expander
Canonical Name: PCF8574ATS/3,118 I2C-bus to Parallel Port Expander with Interrupt
Subcategory: IO Expanders

PCF8574ATS/3,118 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

PCF8574ATS/3,118 Estimated Pricing

Qty Low High
1+ $1.15 $1.15

Estimated market price range - modelled values for guidance only, not live distributor offers.

PCF8574ATS/3,118 Features

  • 8-bit I2C-bus to parallel port expander.
  • Operates from 2.5 V to 6 V supply.
  • 100 kHz I2C-bus interface.
  • Active LOW open-drain interrupt output.
  • Latched outputs can directly drive LEDs.

PCF8574ATS/3,118 Applications

  • Ideal for LED signs and displays.
  • Suitable for keypad scanning applications.
  • Used in industrial control systems.
  • Applicable to mobile devices.
  • Useful for instrumentation and test equipment.

PCF8574ATS/3,118 FAQs

5 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the PCF8574ATS/3,118?

The operating voltage range is 2.5 V to 6 V.

What is the I2C-bus interface speed?

The I2C-bus interface speed is 100 kHz.

Does the PCF8574ATS/3,118 have an interrupt output?

Yes, it features an active LOW open-drain interrupt output.

What is the operating temperature range?

The operating temperature range is -40°C to 85°C.

What package type is the PCF8574ATS/3,118 available in?

It is available in a 20-SSOP package.

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