© Semiconductor Components Industries, LLC, 2010

June, 2010 − Rev. 8

1

Publication Order Number:

NCV7321/D

NCV7321

Stand Alone LIN

Transceiver

Description

The NCV7321 is a fully featured local interconnect network (LIN)

transceiver designed to interface between a LIN protocol controller

and the physical bus. The transceiver is implemented in I3T

technology enabling both high−voltage analog circuitry and digital

functionality to co−exist on the same chip.

The NCV7321 LIN device is a member of the in−vehicle

networking (IVN) transceiver family. It is designed to work in harsh

automotive environment and is qualified following the TS16949 flow.

The LIN bus is designed to communicate low rate data from control

devices such as door locks, mirrors, car seats, and sunroofs at the

lowest possible cost. The bus is designed to eliminate as much wiring

as possible and is implemented using a single wire in each node. Each

node has a slave MCU−state machine that recognizes and translates

the instructions specific to that function. The main attraction of the

LIN bus is that all the functions are not time critical and usually relate

to passenger comfort.

Features

Compatible to Version 1.3) and J2602

$45 V

WAKE Towards Supply and Ground

Automotive Environment

Communication via the LIN Bus is Possible, INH

Switch is On

is Off

power−up or after a wakeup event, INH switch is on

Mode into Standby Mode is Possible either by LIN

Command or a Digital Signal on WAKE Pin (e.g.

External Switch)

http://onsemi.com

PIN ASSIGNMENT

(Top View)

5

6

7

8

1

2

3

4

RxD

TxD

INH

EN

LIN

PC20040918.3

See detailed ordering and shipping information in the package

dimensions section on page 11 of this data sheet.

ORDERING INFORMATION

WAKE

GNI

1

8

SOIC−8

CASE 751