Code: 12643-103-00a

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AS8221

High Performance Bus Transceiver

PRODUCT BRIEF

Pin Pin Name

Pin Type

Notes

1

INH2

AIO

Inhibit switch floating in standby/sleep mode

2

INH1

AIO

Inhibit switch floating in sleep mode

3

EN

DI_PD

Enable input

4

VIO

S

I/O supply voltage

5

TxD

DI_PD

Transmission data input

6

TxEN

DI_PU

Transmission data enable

7

RxD

DO

Receive data output

8

BGE

DI_PD

Bus guardian enable

9

STBN

DI_PD

Standby input

10

Not used

11

Not used

12

RxEN

DO

Receive data enable output

13

ERRN

DO

Error diagnosis output

14

VBAT

S

Battery supply voltage

15

WAKE

AIO

Local wakeup input

16

GND

S

Ground

17

BM

AIO

Bus line Minus

18

BP

AIO

Bus line Plus

19

VCC

S

Supply voltage

20

Not used

Contact

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Business Unit Automotive

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F. +43 (0) 3136 5692

info@austriamicrosystems.com

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visit: www.austriamicrosystems.com

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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. To the best of its knowledge,

austriamicrosystems.

Pin Description

PIN Types:

S...................supply pad

AIO...............analog I/O

DI .................digital input

DI_PU ..........digital input with pull-up

DI_PD ..........digital input with pull-down

DIO_PU........digital I/O with pull-up

DIO_PD........digital I/O with pull-down

DIO_T ..........digital I/O / tristate

DO................digital output

DO_OD ........digital output open drain