PCF8573P

Timer or RTC, Volatile, CMOS, PDIP16,
3,556 Effective Inventory

PCF8573P

Effective Inventory3,556

Timer or RTC, Volatile, CMOS, PDIP16,

  • Manufacturer Part # : PCF8573P

  • Package/Case: DIP-16

  • Brand: NXP

  • Product Categories : Programmable Timers and Oscillators

Quality Assurance

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Certification

We have successfully obtained various certification standards and have established our own professional testing laboratory. This ensures that every product we supply to our customers meets the highest quality standards. We adhere to strict testing protocols to maintain the consistency and accuracy of our products. To ensure that our products are original and genuine, we also collaborate with reputable third-party testing facilities to conduct rigorous quality testing. Our commitment to quality extends to meeting industry, legal, regulatory, and ISO 9001:2015 requirements.

Shipping & Payment

Shipping & Payment

About Shipping

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Service & Packaging

Service & Packaging

About After Sales Service

All Parts Extended Quality Guarantee

Initiate the application within 90 days from the shipment date.

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About packaging

Regarding packaging, our products are carefully packed in anti-static bags to provide ESD anti-static protection. The outer packaging is durable with secure closure. We support various packaging methods such as Tape and Reel, Cut Tape, Tube, or Tray.

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PCF8573P DataSheet
no-price

Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!

Rapid Quote

Please submit RFQ for PCF8573P or email to us: Email: [email protected], we will contact you in 12 hours.

Details

GENERAL DESCRIPTION The PCF8573 is a low threshold, CMOS circuit that functions as a real time clock/calendar. Addresses and data are transferred serially via the two-line bidirectional I2C-bus.FEATURES • Serial input/output I2C-bus interface for minutes, hours, days and months • Additional pulse outputs for seconds and minutes • Alarm register for presetting a time for alarm or remote switching functions • On-chip power fail detector • Separate ground pin for the clock allows easy implementation of battery back-up during supply interruption • Crystal oscillator control (32.768 kHz) • Low power consumption.

Key Features

  • Serial input/output I2C-bus interface for minutes, hours, days and months
  • Additional pulse outputs for seconds and minutes
  • Alarm register for presetting a time for alarm or remote switching functions
  • On-chip power fail detector
  • Separate ground pin for the clock allows easy implementation of battery back-up during supply interruption
  • Crystal oscillator control (32.768 kHz)
  • Low power consumption.

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Rohs Code Yes Part Life Cycle Code Transferred
Reach Compliance Code ECCN Code EAR99
HTS Code ! 8542.39.00.01 Information Access Method SERIAL, 2 WIRE/I2C
Interrupt Capability ! Y JESD-30 Code R-PDIP-T16
JESD-609 Code e4 Number of Terminals 16
Operating Temperature-Max 85 °C Operating Temperature-Min -40 °C
Package Body Material PLASTIC/EPOXY Package Code DIP
Package Equivalence Code DIP16,.3 Package Shape RECTANGULAR
Package Style IN-LINE Power Supplies ! 5 V
Qualification Status ! Not Qualified Supply Voltage-Nom 5 V
Surface Mount ! NO Technology CMOS
Temperature Grade ! INDUSTRIAL Terminal Finish Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal Form ! THROUGH-HOLE Terminal Pitch ! 2.54 mm
Terminal Position DUAL Time-Min MINUTES
Volatile YES

Datasheet PDF

Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.

Preliminary Specification PCF8573P PDF Download

FAQs

What is PCF8573P?

The PCF8573P is an I2C-bus controlled 16-bit I/O expander designed by NXP Semiconductors. It is commonly used to provide additional input/output ports in microcontroller-based systems, such as embedded applications, industrial control, and automotive electronics.

How Does PCF8573P Work?

The PCF8573P functions as an I/O expander by communicating with a microcontroller through the I2C serial interface. It expands the number of available I/O ports by providing 16 additional bidirectional I/O pins that can be configured as inputs or outputs. The device allows for easy expansion of I/O capacity in systems with limited GPIO pins on the microcontroller.

How Many Pins does PCF8573P have and What are the Functions of the Pinout Configuration?

The PCF8573P is housed in a 24-pin DIP (Dual Inline Package) package. The pinout configuration includes:

  • SDA, SCL: I2C-bus serial data and clock input pins, respectively.
  • A0, A1, A2: Address selection pins for I2C address configuration.
  • GND: Ground pin.
  • VCC: Supply voltage pin.
  • P0-P7: Bidirectional I/O pins.

What are the Pros and Cons of PCF8573P?

Pros:

  • Increased I/O Capability: Expands the number of available I/O ports in a cost-effective manner.
  • I2C Interface: Allows easy communication with microcontrollers via the I2C serial protocol.
  • Flexible Configuration: Each I/O pin can be individually configured as input or output.
  • Low Power Consumption: Operates with low power, suitable for battery-powered applications.

Cons:

  • Speed Limitation: I2C communication may introduce latency for high-speed applications.
  • Complexity: Requires understanding of I2C protocol and addressing for proper integration.
  • External Components: May need pull-up resistors on SDA and SCL lines for reliable operation.

Are There Any Equivalents/Alternatives to PCF8573P for Recommendation?

  • The MCP23017 from Microchip offers similar I/O expansion capabilities with I2C interface.
  • Alternatives to the PCF8573P include the SX1509 from Semtech and the PCA9555 from NXP Semiconductors.

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