You CAN build up your connection so comfortably.

SAE 81C90/91 Full CAN Controller

General Description: The SAE 81C90/91 is a standalone CAN Controller which meets Version 2.0B (passive) of the Controller Area Network Protocol specification. In order to fulfill the growing requirements of Controller Area Networks in automotive and industrial control applications it was designed as an enhancement for all microcontrollers. Beyond others the SAE 81C90/91 fits best to the Siemens C500 and C166 Microcontroller families. It incorporates all necessary functional units for completely independent transmission and reception of messages using the CAN protocol. The flexible, programmable interface allows connection to different implementations of the physical layer. Furthermore, automatic time stamp generation for inco-ming messages, both a serial and a parallel host interface, and a transmit check unit are provided. Two 8-bit I/O ports (SAE 81C90) enhance the I/O capabilities of the host controller.

Features: Full CAN controller for data rate up to 1 Mbaud. Complies with CAN specification V2.0 part A (part B passive). Up to 16 messages simultaneous (each with maximum data length). Message identifier reprogrammable -on the fly-. Several transmit jobs can be sent with a single command. Transmit check. Basic CAN feature. Time stamp for eight messages. Two host interfaces (parallel and serial). User-configurable outputs for different bus concepts. Programmable clock output. Two 8 bit I/O-Port extension (P-LCC-44-1 package only). Stand Alone Full CAN Controller Preliminary Data.

CAN - Product Overview - 80K (03.96)


Device Type: SAE81C90/91

Datasheet - 544K (01.97)



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