PT7C43190LE

Overview

Product Category

PT7C43190LE belongs to the category of integrated real-time clock (RTC) modules.

Use

The PT7C43190LE module is primarily used for accurate timekeeping in various electronic devices and systems.

Characteristics

• High precision: The PT7C43190LE offers exceptional accuracy in timekeeping, ensuring reliable performance.
• Low power consumption: This module is designed to operate efficiently with minimal power consumption, making it suitable for battery-powered devices.
• Compact package: The PT7C43190LE comes in a compact package, allowing for easy integration into space-constrained applications.
• Reliable operation: With its robust design and high-quality components, this module ensures long-term reliability.

Package and Quantity

The PT7C43190LE module is available in a surface-mount package. It is typically supplied in reels or trays, with quantities varying based on customer requirements.

Essence

The essence of the PT7C43190LE lies in its ability to provide accurate and reliable timekeeping functionality in a compact and energy-efficient form factor.

Specifications

• Supply Voltage: 1.8V to 5.5V
• Timekeeping Accuracy: ±2 minutes per year (at 25°C)
• Operating Temperature Range: -40°C to +85°C
• Interface: I2C (Inter-Integrated Circuit)
• Clock Frequency: 32.768 kHz

Detailed Pin Configuration

The PT7C43190LE module features the following pin configuration:

| Pin Number | Pin Name | Function | |------------|----------|----------| | 1 | VCC | Power Supply (1.8V to 5.5V) | | 2 | GND | Ground | | 3 | SDA | I2C Serial Data Line | | 4 | SCL | I2C Serial Clock Line |

Functional Features

• Real-time clock: The PT7C43190LE provides accurate timekeeping functionality, including hours, minutes, seconds, and date.
• Alarm function: This module supports programmable alarms, allowing for timely notifications or triggering of specific events.
• Power management: The PT7C43190LE incorporates power-saving features to optimize energy consumption, extending battery life in portable devices.
• Oscillator calibration: It includes an integrated oscillator calibration circuitry to compensate for frequency deviations, ensuring precise timekeeping.

Advantages and Disadvantages

Advantages

• High accuracy ensures reliable timekeeping.
• Low power consumption prolongs battery life.
• Compact package enables easy integration.
• Robust design ensures long-term reliability.

Disadvantages

• Limited temperature range (-40°C to +85°C).
• Requires an external crystal for clock generation.

Working Principles

The PT7C43190LE utilizes an internal oscillator and a real-time counter to keep track of time. It communicates with the host system through the I2C interface, enabling configuration and retrieval of time-related information.

Upon power-up, the module initializes its internal registers and starts counting based on the crystal oscillator's frequency. The real-time clock continuously updates the time and date registers, allowing the host system to access accurate time information.

Detailed Application Field Plans

The PT7C43190LE finds applications in various electronic devices and systems, including but not limited to:

1. Wearable devices: Smartwatches, fitness trackers, and other wearable gadgets benefit from accurate timekeeping provided by the PT7C43190LE.
2. Internet of Things (IoT): IoT devices often require precise time synchronization for data logging, event scheduling, and network coordination.
3. Industrial automation: Time-sensitive processes in industrial automation systems rely on accurate timekeeping for synchronization and coordination.
4. Automotive systems: The PT7C43190LE can be used in automotive applications such as dashboard clocks, event logging, and data timestamping.

Detailed and Complete Alternative Models

1. PT7C4337LE: This RTC module offers similar functionality to the PT7C43190LE but operates at a higher supply voltage range (2.7V to 5.5V).
2. DS3231: A popular alternative, the DS3231 provides high accuracy and temperature compensation, making it suitable for demanding applications.
3. PCF8563: This low-power RTC module features an I2C interface and is commonly used in battery-powered devices.

In conclusion, the PT7C43190LE is a compact and reliable real-time clock module that offers high accuracy and low power consumption. Its versatile application field plans and availability of alternative models make it a suitable choice for various electronic systems.

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