AS8222-HSSP

AS8222-HSSP Datasheet

Datasheet AS8222 Enhanced FlexRay Standard Transceiver

Part	Datasheet
AS8222-HSSP	AS8222-HSSP (pdf)

Related Parts	Information
AS8222-HSSM	AS8222-HSSM

PDF Datasheet Preview
high performance needs great design. Datasheet AS8222 Enhanced FlexRay Standard Transceiver Please be patient while we update our brand image as austriamicrosystems and TAOS are now ams. AS8222 Enhanced FlexRay Standard Transceiver 1 General Description The AS8222 is a high-speed fault tolerant device operating as interface between a generic FlexRay Communication Controller and the copper wiring. This device is the first FlexRay certified Transceiver for temperature ranges up to 150°C ambient temperature. For bare-die deliveries please contact ams for more information. The AS8222 provides a host controller interface consisting of Enable EN and Standby STBN input pins for mode handling by the microcontroller and the Error ERRN output pin, signalling failures and status information. The device supports the NORMAL mode with activated FlexRay bus transmitter and receiver, the RECEIVE_ONLY mode with activated receiver only to avoid unwanted disturbances while listening to the communication and the low-power modes STANDBY and SLEEP with very low power consumption. In case of undervoltage at one of the supply voltages VBAT, VCC, and VIO the device will change its mode to a low-power mode either STANDBY or SLEEP mode and the device will signal an error accordingly. In case of low voltage is detected on both VBAT and VCC the device will enter the POWER-OFF mode. Ensuring application in safety critical environments a two wire busguardian interface is implemented where additional redundant circuitries on the electronic-control-unit can monitor the communication on the receive enable output RxEN and can activate and deactivate through the bus guardian enable input BGE the transmitter. Additionally in low-power modes the wake conditions at the RxEN pin can be monitored. A thermal sensor circuit with an integral shutdown mechanism prevents damage to the device in extreme temperature conditions. 2 Key Features transfer up to 10 Mbps operating ambient temperature range -40°C to +150°C EMC performance common mode range insures excellent EMI immunity with optional bus guardian for bus supervision thermal shutdown protection 12, 24V systems with low sleep current consumption power management system INH pins for the external voltage regulators control wake-up input wake-up capability via FlexRay bus in sleep mode 3, 5 V microcontrollers and automatically adapts to interface levels not disturb the bus line if not powered against damage due to short circuit conditions on the bus positive and negative battery voltage Pb-free package SSOP-20 qualified to AEC-Q100, grade 0 bare-die deliveries please contact us. 3 Applications The AS8222 FlexRay Standard Transceiver is best fitting for automotive FlexRay nodes where bus wake-up and voltage regulator control for voltage supplies is needed. The device addresses all ECUs connected to the permanent battery supply terminal The device is best suited for high temperature applications with up to 150°C. 1 - 42 AS8222 Datasheet - Applications Figure AS8222 Enhanced FlexRay Standard Transceiver Block Diagram STBN EN ERRN AS8222 Host Controller Interface Bus Failure Detector Communication Controller Digital Logic Transmitter TxEN Interface BGE RxEN INH1 INH2 VBAT Undervoltage Detected VBAT Flag 27 Undervoltage Detected VIO Flag 27 Undervoltage Detected VCC 27 Bus 27 Bus Open Line 27 BP Short Circuit to 27 BP Short Circuit to GND 28 BM Short Circuit to VCC 28 BM Short Circuit to 28 Short Circuit between BP and BM 28 Over-temperature 28 TxEN_BGE Timeout 28 Error 28 STATUS Flags Description 28 Local and Remote Wake Flag 28 Power on 28 BGE Status 28 Error and Status Flags Read Out 29 8 Bus Driver 30 AS8222 Bus States 30 Transceiver Timing 30 31 Receiver 33 Bus activity and idle detection only in NORMAL and RECEIVE ONLY 33 Bus Data Detection Only in NORMAL and RECEIVE ONLY Mode 34 Receiver Test 35 9 Test circuits 36 ISO7637-2 Test Pulses - Class D 36 Application 37 10 38 FlexRay Functional Classes 38 FlexRay Parameter Comparison 38 11 Package Drawings and 39 12 Ordering 40 4 - 42 AS8222 Datasheet - Pin Assignments 4 Pin Assignments The AS8222 is available in SSOP-20 5.3mm. Figure Pin Assignments Top View INH2 1 INH1 2 TxD 5 TxEN 6 RxD 7 BGE 8 STBN 9 AS8222 SSOP20 18 BP 17 BM 16 GND 15 WAKE 14 VBAT 13 ERRN 12 RxEN Pin Descriptions Table SSOP-20 Pin Descriptions Pin Name INH2 INH1 EN VIO TxD TxEN RxD BGE STBN Pin Number 1 2 3 4 5 6 7 8 9 Reserved Not used RxEN ERRN VBAT WAKE Not used Pin Type Analog I/O Digital Input with Pull-down Supply Digital Input with Pull-down Digital Input with Pull-up Digital Output Digital Input with Pull-down Analog/digital Input/output with Pull-down - Digital Output Supply Analog I/O Datasheet - Ordering Information 12 Ordering Information Table Ordering Information Ordering Code Marking AS8222-HSSP AS8222 AS8222-HSSM AS8222 Description AS8222 Enhanced FlexRay Standard Transceiver AS8222 Enhanced FlexRay Standard Transceiver Delivery Form Tape & Reel in Dry Pack 1 reel = 2000 units Tape & Reel in Dry Pack 1 reel = 500 units For bare die deliveries please contact ams customer service. Note All products are RoHS compliant and ams green. Buy our products or get free samples online at Technical Support is available at For further information and requests, email us at or find your local distributor at Package SSOP-20 SSOP-20 40 - 42 AS8222 Date 11 Dec, 2012 Owner hgl Description Initial version 41 - 42 AS8222 Datasheet - Copyrights Copyrights Copyright 1997-2012, ams AG, Tobelbaderstrasse 30, 8141 Unterpremstaetten, Austria-Europe. Trademarks Registered All rights reserved. The material herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. All products and companies mentioned are trademarks or registered trademarks of their respective companies. Disclaimer Devices sold by ams AG are covered by the warranty and patent indemnification provisions appearing in its Term of Sale. ams AG makes no warranty, express, statutory, implied, or by description regarding the information set forth herein or regarding the freedom of the described devices from patent infringement. ams AG reserves the right to change specifications and prices at any time and without notice. Therefore, prior to designing this product into a system, it is necessary to check with ams AG for current information. This product is intended for use in normal commercial applications. Applications requiring extended temperature range, unusual environmental requirements, or high reliability applications, such as military, medical life-support or life-sustaining equipment are specifically not recommended without additional processing by ams AG for each application. For shipments of less than 100 parts the manufacturing flow might show deviations from the standard production flow, such as test flow or test location. The information furnished here by ams AG is believed to be correct and accurate. However, ams AG shall not be liable to recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of profits, loss of use, interruption of business or indirect, special, incidental or consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the technical data herein. No obligation or liability to recipient or any third party shall arise or flow out of ams AG rendering of technical or other services. Contact Information Headquarters ams AG Tobelbaderstrasse 30 A-8141 Unterpremstaetten, Austria Tel +43 0 3136 500 0 Fax +43 0 3136 525 01 For Sales Offices, Distributors and Representatives, please visit: 42 - 42

PDF Datasheet Preview

high performance needs great design.

Datasheet AS8222 Enhanced FlexRay Standard Transceiver

Please be patient while we update our brand image as austriamicrosystems and TAOS are now ams.

AS8222

Enhanced FlexRay Standard Transceiver
1 General Description

The AS8222 is a high-speed fault tolerant device operating as interface between a generic FlexRay Communication Controller and the copper wiring.

This device is the first FlexRay certified Transceiver for temperature ranges up to 150°C ambient temperature. For bare-die deliveries please contact ams for more information.

The AS8222 provides a host controller interface consisting of Enable EN and Standby STBN input pins for mode handling by the microcontroller and the Error ERRN output pin, signalling failures and status information.

The device supports the NORMAL mode with activated FlexRay bus transmitter and receiver, the RECEIVE_ONLY mode with activated receiver only to avoid unwanted disturbances while listening to the communication and the low-power modes STANDBY and SLEEP with very low power consumption.

In case of undervoltage at one of the supply voltages VBAT, VCC, and VIO the device will change its mode to a low-power mode either STANDBY or SLEEP mode and the device will signal an error accordingly. In case of low voltage is detected on both VBAT and VCC the device will enter the POWER-OFF mode.

Ensuring application in safety critical environments a two wire busguardian interface is implemented where additional redundant circuitries on the electronic-control-unit can monitor the communication on the receive enable output RxEN and can activate and deactivate through the bus guardian enable input BGE the transmitter. Additionally in low-power modes the wake conditions at the RxEN pin can be monitored.

A thermal sensor circuit with an integral shutdown mechanism prevents damage to the device in extreme temperature conditions.
2 Key Features
transfer up to 10 Mbps
operating ambient temperature range -40°C to +150°C

EMC performance
common mode range insures excellent EMI immunity
with optional bus guardian for bus supervision thermal shutdown protection 12, 24V systems with low sleep current consumption power management system INH pins for the external voltage regulators control wake-up input wake-up capability via FlexRay bus in sleep mode 3, 5 V microcontrollers and automatically
adapts to interface levels not disturb the bus line if not powered against damage due to short circuit conditions on the
bus positive and negative battery voltage Pb-free package SSOP-20 qualified to AEC-Q100, grade 0 bare-die deliveries please contact us.
3 Applications

The AS8222 FlexRay Standard Transceiver is best fitting for automotive FlexRay nodes where bus wake-up and voltage regulator control for voltage supplies is needed. The device addresses all ECUs connected to the permanent battery supply terminal The device is best suited for high temperature applications with up to 150°C.
1 - 42

AS8222

Datasheet - Applications

Figure AS8222 Enhanced FlexRay Standard Transceiver Block Diagram

STBN EN

ERRN

AS8222

Host Controller Interface

Bus Failure Detector

Communication

Controller

Digital Logic

Transmitter

TxEN

Interface

BGE RxEN

INH1 INH2

VBAT
Undervoltage Detected VBAT Flag 27 Undervoltage Detected VIO Flag 27 Undervoltage Detected VCC 27 Bus 27 Bus Open Line 27 BP Short Circuit to 27 BP Short Circuit to GND 28 BM Short Circuit to VCC 28 BM Short Circuit to 28 Short Circuit between BP and BM 28 Over-temperature 28 TxEN_BGE Timeout 28 Error 28 STATUS Flags Description 28 Local and Remote Wake Flag 28 Power on 28 BGE Status 28 Error and Status Flags Read Out 29 8 Bus Driver 30 AS8222 Bus States 30 Transceiver Timing 30 31 Receiver 33 Bus activity and idle detection only in NORMAL and RECEIVE ONLY 33 Bus Data Detection Only in NORMAL and RECEIVE ONLY Mode 34 Receiver Test 35 9 Test circuits 36 ISO7637-2 Test Pulses - Class D 36 Application 37 10 38 FlexRay Functional Classes 38 FlexRay Parameter Comparison 38 11 Package Drawings and 39 12 Ordering 40
4 - 42

AS8222

Datasheet - Pin Assignments
4 Pin Assignments

The AS8222 is available in SSOP-20 5.3mm. Figure Pin Assignments Top View

INH2 1

INH1 2

TxD 5

TxEN 6

RxD 7

BGE 8

STBN 9

AS8222

SSOP20
18 BP
17 BM
16 GND
15 WAKE
14 VBAT
13 ERRN
12 RxEN

Pin Descriptions

Table SSOP-20 Pin Descriptions

Pin Name INH2 INH1 EN VIO TxD TxEN RxD BGE STBN

Pin Number 1 2 3 4 5 6 7 8 9

Reserved

Not used

RxEN

ERRN

VBAT

WAKE

Not used

Pin Type

Analog I/O

Digital Input with Pull-down Supply

Digital Input with Pull-down Digital Input with Pull-up Digital Output

Digital Input with Pull-down

Analog/digital Input/output with Pull-down -

Digital Output

Supply Analog I/O
Datasheet - Ordering Information
12 Ordering Information
Table Ordering Information
Ordering Code

Marking

AS8222-HSSP

AS8222

AS8222-HSSM

AS8222

Description AS8222 Enhanced FlexRay Standard

Transceiver AS8222 Enhanced FlexRay Standard

Transceiver

Delivery Form Tape & Reel in Dry Pack
1 reel = 2000 units Tape & Reel in Dry Pack
1 reel = 500 units

For bare die deliveries please contact ams customer service.

Note All products are RoHS compliant and ams green. Buy our products or get free samples online at

Technical Support is available at

For further information and requests, email us at or find your local distributor at

Package SSOP-20 SSOP-20
40 - 42

AS8222

Date 11 Dec, 2012

Owner hgl

Description Initial version
41 - 42

AS8222

Datasheet - Copyrights

Copyrights

Copyright 1997-2012, ams AG, Tobelbaderstrasse 30, 8141 Unterpremstaetten, Austria-Europe. Trademarks Registered All rights reserved. The material herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. All products and companies mentioned are trademarks or registered trademarks of their respective companies.

Disclaimer

Devices sold by ams AG are covered by the warranty and patent indemnification provisions appearing in its Term of Sale. ams AG makes no warranty, express, statutory, implied, or by description regarding the information set forth herein or regarding the freedom of the described devices from patent infringement. ams AG reserves the right to change specifications and prices at any time and without notice. Therefore, prior to designing this product into a system, it is necessary to check with ams AG for current information. This product is intended for use in normal commercial applications. Applications requiring extended temperature range, unusual environmental requirements, or high reliability applications, such as military, medical life-support or life-sustaining equipment are specifically not recommended without additional processing by ams AG for each application. For shipments of less than 100 parts the manufacturing flow might show deviations from the standard production flow, such as test flow or test location. The information furnished here by ams AG is believed to be correct and accurate. However, ams AG shall not be liable to recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of profits, loss of use, interruption of business or indirect, special, incidental or consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the technical data herein. No obligation or liability to recipient or any third party shall arise or flow out of ams AG rendering of technical or other services.

Contact Information

Headquarters ams AG Tobelbaderstrasse 30 A-8141 Unterpremstaetten, Austria Tel +43 0 3136 500 0 Fax +43 0 3136 525 01

For Sales Offices, Distributors and Representatives, please visit:
42 - 42

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived AS8222-HSSP Datasheet file may be downloaded here without warranties.

Datasheet ID: AS8222-HSSP 519772