PCF8584P,112

Overview

• Category: Integrated Circuit
• Use: I2C bus controller
• Characteristics: 8-bit microcontroller compatible, 256 bytes of RAM, 1 MHz clock frequency
• Package: DIP (Dual In-line Package)
• Essence: Control and interface IC for I2C bus systems
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Supply voltage: 2.5V to 6V
• Operating temperature range: -40°C to +85°C
• I2C-bus interface: Compatible with I2C-bus standard mode and fast mode
• Clock frequency: Up to 1 MHz
• RAM: 256 bytes
• General-purpose input/output lines: 16
• Interrupt output line: 1
• Address range: 256 slave addresses

Pin Configuration

The PCF8584P,112 has a total of 20 pins. The pin configuration is as follows:

1. SDA: Serial Data Input/Output
2. SCL: Serial Clock Input
3. INT: Interrupt Output
4. A0: Address Bit 0
5. A1: Address Bit 1
6. A2: Address Bit 2
7. VSS: Ground
8. P0-P7: General Purpose Input/Output Lines
9. VDD: Supply Voltage
10. RESET: Reset Input
11. XTAL1: Crystal Connection
12. XTAL2: Crystal Connection
13. TEST: Test Mode Input
14. OSC: Oscillator Output
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

• I2C-bus controller with 256 bytes of RAM
• Compatible with standard and fast mode I2C-bus
• Supports up to 256 slave addresses
• General-purpose input/output lines for versatile applications
• Interrupt output for event-driven communication
• Reset input for system initialization
• Test mode input for debugging purposes
• Oscillator output for synchronization with external devices

Advantages and Disadvantages

Advantages: - Compact and integrated design - Wide supply voltage range - Versatile I2C-bus compatibility - Ample RAM for data storage - Flexible general-purpose input/output lines

Disadvantages: - Limited number of interrupt output lines - No built-in EEPROM or flash memory - Relatively low clock frequency compared to some modern ICs

Working Principles

The PCF8584P,112 is an I2C-bus controller that operates as a master device in an I2C-bus system. It communicates with other devices on the bus using the I2C protocol, enabling data transfer and control functions. The microcontroller inside the PCF8584P,112 executes instructions and manages the flow of data between the I2C-bus and the connected devices. It utilizes the internal RAM for temporary data storage and supports various input/output operations through its general-purpose lines.

Detailed Application Field Plans

The PCF8584P,112 finds applications in various fields, including:

1. Industrial automation: Control and monitoring systems
2. Consumer electronics: Remote controls, smart home devices
3. Automotive: Vehicle diagnostics, sensor interfaces
4. Medical equipment: Patient monitoring, diagnostic devices
5. Communication systems: Data transmission, network interfaces

Alternative Models

1. PCF8574: 8-bit I/O expander with I2C-bus interface
2. PCF8591: 4-channel, 8-bit analog-to-digital and digital-to-analog converter with I2C-bus interface
3. PCF8563: Real-time clock/calendar with I2C-bus interface
4. PCF8576: LCD driver/controller with I2C-bus interface

These alternative models offer similar functionality and compatibility with the I2C-bus system.

In conclusion, the PCF8584P,112 is an integrated circuit that serves as an I2C bus controller. It offers versatile features, such as general-purpose input/output lines, interrupt output, and a wide supply voltage range. Its compact design and compatibility with the I2C-bus standard make it suitable for various applications in different fields. However, it has limitations in terms of interrupt outputs and clock frequency. Alternative models like PCF8574, PCF8591, PCF8563, and PCF8576 provide similar functionalities and can be considered as alternatives to the PCF8584P,112.