PCF2129AT/2,518

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PCF2129AT/2,518

IC RTC CLK/CAL I2C/SPI 20-SOIC

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規格

Package Tape & Reel (TR),Cut Tape (CT),Bulk
ProductStatus Active
Type Clock/Calendar
Features Alarm, Leap Year, Square Wave Output, TCXO/Crystal, Watchdog Timer
TimeFormat HH:MM:SS (12/24 hr)
DateFormat YY-MM-DD-dd
Interface I²C, 2-Wire Serial
Voltage-Supply 1.8V ~ 4.2V
Voltage-SupplyBattery 1.8V ~ 4.2V
Current-Timekeeping(Max) 1.5µA @ 3.3V
OperatingTemperature -40°C ~ 85°C
MountingType Surface Mount
Package/Case 20-SOIC (0.295, 7.50mm Width)

概述

Description

The PCF2129AT/2,518 is a real-time clock (RTC) integrated circuit (IC) designed for low-power applications. It provides precise timekeeping and includes features such as a programmable alarm, a programmable square wave output, and I²C communication for easy integration with microcontrollers.
Key features of the PCF2129AT include:
1. Timekeeping Accuracy: Maintains accurate time with a built-in oscillator and temperature compensation.
2. Low Power Consumption: Designed to operate efficiently, making it suitable for battery-powered devices.
3. Data Retention: Retains time and configuration settings even during power loss, thanks to a backup battery option.
4. Alarms and Interrupts: Supports multiple alarms to trigger events or wake-up signals.
5. Flexible Interface: Communicates via I²C, allowing easy integration into various electronic systems.
Overall, the PCF2129AT/2,518 is ideal for consumer electronics, industrial applications, and any device requiring accurate timekeeping in a compact and energy-efficient form.

Features

The PCF2129AT/2,518 is a real-time clock (RTC) with the following key features:
1. I2C Interface: Supports a standard I2C communication protocol for easy integration with microcontrollers.
2. Timekeeping Accuracy: Maintains accurate timekeeping with an integrated temperature-compensated crystal oscillator.
3. Low Power Consumption: Designed for battery-operated devices, it features low power consumption in both active and standby modes.
4. Alarm Functionality: Includes programmable alarms for time-based interrupts.
5. Registers: Offers a range of registers for time, date, and control settings.
6. Leap Year Handling: Automatically manages leap years for accurate date calculation.
7. Wide Operating Voltage: Operates from 1.8V to 5.5V, accommodating various power supply levels.
8. Temperature Compensation: Ensures stable timekeeping across a range of temperatures.
9. Battery Backup: Supports battery backup for continuous operation during power outages.
These features make the PCF2129AT/2,518 suitable for a variety of applications including consumer electronics, industrial devices, and IoT solutions.

Package

The PCF2129AT/2,518 is available in a TSSOP (Thin Shrink Small Outline Package) with 8 pins. This compact package type is designed for space-efficient applications in electronic circuits.

Pinout

The PCF2129AT/2,518 is a real-time clock (RTC) integrated circuit (IC) with a total of 8 pins. The pin configuration and functions are as follows:
1. VDD: Power supply input (1.8V to 5.5V).
2. VSS: Ground reference.
3. SDA: Serial Data Line for I2C communication.
4. SCL: Serial Clock Line for I2C communication.
5. SQW: Square Wave Output, provides a clock pulse output.
6. OUT: Alarm output.
7. X1/X2: Crystal oscillator connections for an external 32.768 kHz crystal.
8. ALM: Alarm function pin (used for alarm settings).
The PCF2129AT/2,518 is designed for low power consumption and is widely used in battery-operated devices to keep track of time and date.

Manufacturer

The PCF2129AT/2,518 is manufactured by NXP Semiconductors, a global semiconductor company based in the Netherlands. NXP specializes in designing and manufacturing a wide range of products, including microcontrollers, sensors, RF components, and secure connectivity solutions. The company focuses on automotive, industrial, mobile, and consumer markets, providing innovative solutions for IoT (Internet of Things) applications and smart devices. NXP is known for its commitment to advancing technology and enhancing the performance and efficiency of electronic systems.

Application

The PCF2129AT/2,518 is a real-time clock (RTC) with an I2C interface, commonly used in applications such as battery-backed timekeeping in embedded systems, consumer electronics, industrial automation, and IoT devices. It can be utilized in systems requiring accurate timekeeping for data logging, scheduling tasks, timestamping events, and maintaining time in low-power environments. Its features include an alarm function, temperature compensation, and power-saving modes, making it ideal for various time-sensitive applications.

Equivalent

The PCF2129AT/2,518 is a real-time clock (RTC) chip. Equivalent products include:
1. DS3231 - High accuracy RTC with temperature compensation.
2. MCP7940N - RTC with EEPROM and battery backup.
3. M41T00 - I2C RTC with low power consumption.
4. RTC8564 - I2C RTC with integrated oscillator.
Always check specific features and compatibility for your application.

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