Rochester Electronics AS82527

The 82527 Serial Communications Controller is a highly integrated device that performs serial communications in accordance with the Controller Area Network protocol. It handles all serial communication functions — such as message transmission and reception, message filtering, transmission arbitration, and interrupt handling — with minimal interaction required from the host microcontroller or CPU. The 82527 features a powerful CPU interface that enables direct, flexible connectivity to a wide variety of CPUs. It can be configured to interface with both Intel and non-Intel architecture CPUs using 8-bit multiplexed, 16-bit multiplexed, or 8-bit non-multiplexed address/data buses. A flexible serial interface is also provided for applications where a parallel CPU interface is not required.

• Supports CAN Specification 2.0
• Programmable global mask
• 15 message objects with 8-byte data length
• Flexible CPU interface
• Programmable bit rate
• Programmable clock output
• Flexible interrupt structure
• Flexible status interface
• Configurable output driver
• Configurable input comparator
• Two 8-bit bidirectional I/O ports
• 44-pin plastic leaded chip carrier package
• 44-pin QFP
• Pin-compatible with 82526