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The MC68A54P is a Multi-Protocol Communications Controller (MPCC) manufactured by Motorola (MOTO).

Specifications:

• Manufacturer: Motorola (MOTO)
• Part Number: MC68A54P
• Type: Multi-Protocol Communications Controller (MPCC)
• Package: Plastic DIP (Dual In-line Package)
• Operating Voltage: 5V
• Data Rate: Up to 1 Mbps (depending on protocol)
• Interface: Parallel (8-bit data bus)
• Protocol Support:
• Asynchronous (UART)
• Synchronous (Bisync, HDLC, SDLC)
• Byte-oriented and bit-oriented protocols
• Features:
• On-chip baud rate generator
• Programmable interrupt logic
• Full-duplex operation
• Loopback testing capability
• NRZ, NRZI, and FM encoding/decoding
• Temperature Range: Commercial (0°C to +70°C)

Descriptions:

The MC68A54P is a versatile communications controller designed for use in microprocessor-based systems. It supports multiple serial communication protocols, making it suitable for applications such as modems, terminals, and networking equipment.

Features:

• Flexible Protocol Support: Handles both asynchronous and synchronous communications.
• Programmable Options: Configurable data format, baud rate, and control signals.
• Error Detection: Includes CRC generation/checking for reliable data transmission.
• Low Power Consumption: CMOS-compatible design.
• Compatibility: Interfaces with Motorola 6800/68000 family microprocessors.

This component was widely used in industrial and embedded systems requiring robust serial communication capabilities.