Maker : austriamicrosystems AG
Part No. : AS8220A

Datasheet PDF : AS8220A.pdf
Cross Reference : AS8220A Cross Reference
Buy Component : AS8220A Find Stock and Price

Shortcut : AS8220A 

Product Information

www.DataSheet4U.com AS8220A F l e x R a y TM B a s i s Tra n s c e i v e r O bj e c t i v e D a ta S h e e t 1 General Description This objective data sheet describes the intended functionality of the AS8220A bus transceiver. As long the device is not fully qualified, the parameters are not characterized in the means that parameters may change or can be updated during final product qualification and characterization. This document shows the objective of the AS8220A and this document is subjected to change without notice. The AS8220A is a high-speed automotive transceiver for fault tolerant and high speed applications, operating as the bi-directional interface between a generic communication controller and the twisted pair copper wires. The device enables two-way communication with the microcontroller with full mode handling, including the low-power modes. The transmission rates up to 10Mbps as well as the implemented Bus Guardian interface enables this transceiver the usage in fault tolerant and hard real-time applications in the stringent automotive environment. An extended diagnostic interface, offers advanced busfailure detection capabilities with the intelligent combination of bus-current measurement and logical comparators. A thermal sensor circuit with an integral shutdown mechanism prevents damage to the device in extreme temperature conditions. The symmetrical transient control for the high- and low-side driver for both the busminus and bus-plus line allows an ideal balance of communications over different network topologies, with excellent EMC performance. The product is available in SSOP14 package. Figure 1. Block Diagram VIO STBN ERRN VIO 2 Key Features Data transfer up to 10 Mbps Compliant with FlexRay Electrical Physical Layer Specification V2.1 Rev. B Excellent EMC performances. High common mode range insure excellent EMI Enable pin for an optional bus guardian Automatic thermal shutdown protection Low standby current Supports 2.5, 3, 3.3, 5 V micro controllers and automatically adapts to interface levels Protection against damage due to short circuit conditions on the bus (positive and negative battery voltage) Operating temperature range -40ºC to +125ºC 3 Applications The device is ideal for high speed automotive bus systems, backbone bus and gateways, X-by-wire systems, redundant bus systems, bus topologies with Active Stars, and safety critical applications. Designed for FlexRay, where the basic features are demanded. AS8220A Host Controller Interface Bus Failure Detector BP BM RxD TxD TxEN BGE Communication Controller Interface Digital Logic Transmitter Bus Guardian Interface Receiver Power Supply Interface VIO VCC GND www.austriamicrosystems.com Revision 17920-001-10a 1 - 33 AS8220A Objective Data Sheet - Applications www.DataSheet4U.com Contents 1 General Description ............................................................................................................................... 1 2 Key Features ...........................................................................................................................................1 3 Applications ............................................................................................................................................ 1 4 Pin Assignments .................................................................................................................................... 4 4.1 Pin Descriptions ................................................................................................................................................4 5 Absolute Maximum Ratings .................................................................................................................. 5 6 Electrical Characteristics....................................................................................................................... 6 7 Typical Operating Characteristics ...............................................

Link URL