PCI2250PCMG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: PCI-to-PCI Bridge
• Characteristics: High-performance, low-power consumption, compact size
• Package: Plastic Quad Flat Package (PQFP)
• Essence: Facilitates communication between multiple PCI buses
• Packaging/Quantity: Individually packaged, quantity varies based on supplier

Specifications

• Manufacturer: Texas Instruments
• Operating Voltage: 3.3V
• Data Transfer Rate: Up to 66 MHz
• Number of PCI Buses Supported: 2
• Number of Devices Supported: Up to 10
• Power Consumption: Low power consumption design
• Operating Temperature Range: -40°C to +85°C
• RoHS Compliance: Yes

Detailed Pin Configuration

The PCI2250PCMG4 features a total of 160 pins, which are assigned for various functions and connections. The pin configuration is as follows:

1. VCCINT
2. GND
3. AD[31:24]
4. AD[23:16]
5. AD[15:8]
6. AD[7:0]
7. C/BE[3:0]#
8. FRAME#
9. IRDY#
10. TRDY#
11. DEVSEL#
12. STOP#
13. LOCK#
14. PERR#
15. SERR#
16. INTA#
17. INTB#
18. INTC#
19. INTD#
20. REQ64#
21. ACK64#
22. REQ32#
23. ACK32#
24. REQ0#
25. ACK0#
26. PAR#

(Note: This is just a partial list of the pin configuration. Refer to the datasheet for the complete pinout.)

Functional Features

• PCI-to-PCI Bridging: Enables communication between multiple PCI buses.
• Bus Mastering Support: Allows devices connected to the bridge to become bus masters.
• Interrupt Handling: Supports interrupt generation and handling.
• Error Reporting: Provides error reporting mechanisms for efficient debugging.
• Power Management: Incorporates power management features to optimize energy consumption.
• Hot Plug Support: Facilitates hot-plugging of devices without system shutdown.

Advantages and Disadvantages

Advantages: - High-performance data transfer - Low power consumption - Compact size for space-constrained applications - Robust error reporting and handling mechanisms - Power management features for energy efficiency

Disadvantages: - Limited number of supported devices (up to 10) - Requires proper configuration for optimal performance - Relatively high cost compared to simpler bridge solutions

Working Principles

The PCI2250PCMG4 acts as a bridge between two PCI buses, allowing them to communicate with each other. It facilitates the transfer of data, interrupts, and control signals between the buses. The bridge supports bus mastering, enabling devices connected to it to become bus masters and initiate data transfers. It also incorporates error reporting mechanisms to detect and report any issues during data transmission. Power management features help optimize energy consumption by dynamically adjusting power levels based on device activity.

Detailed Application Field Plans

The PCI2250PCMG4 finds applications in various fields where multiple PCI buses need to communicate efficiently. Some common application areas include:

1. Industrial Automation: Used in industrial control systems to connect multiple PCI-based devices, such as sensors, actuators, and controllers.
2. Networking Equipment: Bridges multiple PCI buses in routers, switches, and network interface cards to enhance data transfer capabilities.
3. Embedded Systems: Enables communication between different subsystems in embedded systems, such as medical devices, automotive electronics, and consumer electronics.
4. Test and Measurement: Facilitates data exchange between PCI-based test equipment, allowing for efficient testing and measurement operations.

Detailed and Complete Alternative Models

1. PCI2250: Similar to PCI2250PCMG4, but in a different package (e.g., BGA).
2. PCI2050: Offers similar bridging functionality with additional features like hot-plug support.
3. PCI9050: Provides more advanced bridging capabilities with support for higher data transfer rates and larger device counts.

(Note: This is just a sample list of alternative models. Consult the manufacturer's website or relevant datasheets for a comprehensive list.)

In conclusion, the PCI2250PCMG4 is a high-performance PCI-to-PCI bridge IC manufactured by Texas Instruments. It enables communication between multiple PCI buses, offering features such as bus mastering, error reporting, and power management. While it has some limitations, it finds applications in various fields, including industrial automation, networking equipment, embedded systems, and test and measurement. Alternative models from Texas Instruments and other manufacturers provide additional options with varying capabilities.