PCF85363ATT1/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: TSSOP20
• Essence: The PCF85363ATT1/AJ is a real-time clock/calendar IC used for timekeeping and alarm functions in various electronic devices.
• Packaging/Quantity: Available in tape and reel packaging, with 2500 units per reel.

Specifications

• Supply Voltage: 1.8V to 5.5V
• Clock Frequency: 32.768 kHz
• Time Format: 24-hour or 12-hour format
• Alarm Function: Programmable alarm with interrupt capability
• I2C Interface: Supports I2C-bus interface for communication
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The PCF85363ATT1/AJ has a total of 20 pins. The pin configuration is as follows:

1. VDD - Power supply voltage
2. GND - Ground
3. SDA - Serial data input/output for I2C communication
4. SCL - Serial clock input for I2C communication
5. INT - Interrupt output
6. XOUT - Crystal oscillator output
7. XIN - Crystal oscillator input
8. ALM - Alarm output
9. VBAT - Backup battery input
10. NC - No connection
11. NC - No connection
12. NC - No connection
13. NC - No connection
14. NC - No connection
15. NC - No connection
16. NC - No connection
17. NC - No connection
18. NC - No connection
19. NC - No connection
20. NC - No connection

Functional Features

• Real-time clock/calendar with alarm function
• Low power consumption for extended battery life
• High accuracy timekeeping
• Programmable alarm with interrupt capability
• I2C-bus interface for easy communication with other devices
• Backup battery input for maintaining timekeeping during power loss

Advantages and Disadvantages

Advantages: - Low power consumption extends battery life - High accuracy ensures precise timekeeping - Small package size allows for space-saving designs - Programmable alarm with interrupt capability adds functionality - I2C-bus interface enables easy integration with other devices

Disadvantages: - Limited to a maximum clock frequency of 32.768 kHz - Requires an external crystal oscillator for clock generation

Working Principles

The PCF85363ATT1/AJ operates by receiving power from the supply voltage (VDD) and ground (GND). It utilizes a crystal oscillator connected to the XIN and XOUT pins for generating the clock signal. The IC communicates with other devices through the I2C-bus interface using the SDA and SCL pins.

The real-time clock/calendar keeps track of time and date, while the programmable alarm feature allows users to set specific times for triggering an interrupt. The backup battery input (VBAT) ensures that the clock continues to operate even during power loss.

Detailed Application Field Plans

The PCF85363ATT1/AJ is widely used in various electronic devices that require accurate timekeeping and alarm functionality. Some common application fields include:

1. Consumer Electronics:

   • Smartphones
   • Tablets
   • Digital cameras
   • Portable media players

2. Automotive:

   • Car infotainment systems
   • Dashboard clocks
   • GPS navigation devices

3. Industrial:

   • Programmable logic controllers (PLCs)
   • Industrial automation systems
   • Data loggers

4. Medical:

   • Patient monitoring devices
   • Medical equipment with time-sensitive operations

Detailed and Complete Alternative Models

1. PCF85263A - Real-time clock/calendar IC with alarm function, similar specifications to PCF85363ATT1/AJ.
2. DS3231 - Highly accurate real-time clock module with integrated temperature compensation.
3. MCP7940N - Low-power real-time clock/calendar with battery backup and I2C interface.

These alternative models offer similar functionality and can be considered as alternatives to the PCF85363ATT1/AJ based on specific requirements and design considerations.

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