PCA85063ATT/AJ

Product Overview

• Category: Integrated Circuit (IC)
• Use: Real-time clock/calendar with alarm function
• Characteristics: Low power consumption, high accuracy, small package size
• Package: TSSOP-20
• Essence: Provides accurate timekeeping and alarm functionality in various electronic devices
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Supply Voltage: 1.8V to 5.5V
• Timekeeping Accuracy: ±3 minutes per year at 25°C
• Operating Temperature Range: -40°C to +85°C
• Clock Frequency: Programmable from 32.768 kHz to 1 MHz
• Alarm Function: Configurable with multiple interrupt outputs
• I2C Interface: Supports communication up to 400 kHz
• Battery Backup: Integrated trickle charger for backup power supply

Detailed Pin Configuration

The PCA85063ATT/AJ IC has a total of 20 pins. The pin configuration is as follows:

1. VDD - Power supply voltage
2. GND - Ground
3. SDA - Serial data line for I2C communication
4. SCL - Serial clock line for I2C communication
5. INT - Interrupt output
6. X1 - Crystal oscillator input
7. X2 - Crystal oscillator output
8. CLKOUT - Clock output
9. VBAT - Battery backup input
10. NC - No connection
11. A0 - Address bit 0
12. A1 - Address bit 1
13. A2 - Address bit 2
14. AD0 - Alarm output 0
15. AD1 - Alarm output 1
16. AD2 - Alarm output 2
17. AD3 - Alarm output 3
18. AD4 - Alarm output 4
19. AD5 - Alarm output 5
20. RESET - Reset input

Functional Features

• Accurate Timekeeping: The PCA85063ATT/AJ provides precise timekeeping with a low deviation of ±3 minutes per year.
• Alarm Functionality: It offers multiple configurable alarm outputs, allowing for various alarm applications in electronic devices.
• Low Power Consumption: The IC is designed to operate with minimal power consumption, making it suitable for battery-powered devices.
• I2C Interface: The integrated I2C interface enables easy communication and control of the device.
• Battery Backup: The trickle charger ensures continuous operation during power outages by utilizing an external backup battery.

Advantages and Disadvantages

Advantages

• High accuracy in timekeeping
• Flexible alarm configuration
• Low power consumption
• Compact package size
• Easy integration with I2C interface

Disadvantages

• Limited number of alarm outputs
• Requires an external crystal oscillator for clock generation

Working Principles

The PCA85063ATT/AJ utilizes an internal oscillator or an external crystal oscillator to generate the clock signal. It keeps track of time using a counter that increments based on the clock frequency. The device also allows the user to set alarms at specific times, triggering the corresponding alarm outputs when activated. The I2C interface facilitates communication with the host microcontroller, enabling configuration and control of the real-time clock functionality.

Detailed Application Field Plans

The PCA85063ATT/AJ is widely used in various electronic devices that require accurate timekeeping and alarm functionality. Some common application fields include:

1. Consumer Electronics: Clock radios, digital watches, home automation systems
2. Automotive: Car audio systems, dashboard clocks
3. Industrial Automation: Programmable logic controllers (PLCs), data loggers, industrial timers
4. Medical Devices: Patient monitoring systems, medical equipment with time-sensitive operations
5. Internet of Things (IoT): Smart home devices, wearable technology

Detailed and Complete Alternative Models

1. DS3231 - Real-time clock module with temperature compensation
2. PCF8563 - Low-power real-time clock/calendar IC
3. MCP7940N - I2C real-time clock/calendar with SRAM
4. DS1307 - Serial real-time clock IC with battery backup
5. RV-8803-C7 - Ultra-low power real-time clock module

These alternative models offer similar functionality to the PCA85063ATT/AJ and can be considered as alternatives based on specific requirements and preferences.

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