MC33990D Datasheet

IC型號(hào)：
MC33990D
PDF描述：
Freescale Semiconductor, Inc [Enhanced Class B Serial Trans...
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FREESCALE

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Freescale Semiconductor, Inc.

MOTOROLA

SEMICONDUCTOR TECHNICAL DATA

Document order number: MC33990/D

Rev 1.0, 2/2003

Advance Information

Enhanced Class B Serial

Transceiver

The 33990 is a serial transceiver designed to provide bi-directional half-

duplex communication meeting the automotive SAE Standard J-1850 Class B

Data Communication Network Interface specification. It is designed to

interface directly to on-board vehicle microcontrollers and serves to transmit

and receive data on a single-wire bus at data rates of 10.4 kbps using Variable

Pulse Width Modulation (VPWM). The 33990 operates directly from a vehicle's

12 V battery system and functions in a logic fashion as an I/O interface

between the microcontroller's 5.0 V CMOS logic level swings and the required

0 V to 7.0 V waveshaped signal swings of the bus. The bus output driver is

short circuit current limited.

Features

鈥?Designed for SAE J-1850 Class B Data Rates

鈥?Full Operational Bus Dynamics Over a Supply Voltage of 9.0 V to 16 V

鈥?Ambient Operating Temperature of -40擄C to 125擄C

鈥?Interfaces Directly to Standard 5.0 V CMOS Microcontroller

鈥?BUS Pin Protected Against Shorts to Battery and Ground

鈥?Thermal Shutdown with Hysteresis

鈥?Voltage Waveshaping of Bus Output Driver

鈥?Internally Reverse Battery Protected

鈥?40 V Max V

BAT

Capability

33990

J-1850 SERIAL TRANSCEIVER

Freescale Semiconductor, Inc...

D SUFFIX

PLASTIC PACKAGE

CASE 751

(8-LEAD SOICN)

ORDERING INFORMATION

Device

MC33990D/DR2

Temperature

Range (T

)

-40 to 125擄C

Package

8 SOICN

33990 Simplified Application Diagram

BAT

BUS

470 pF

10.6 k鈩?/div>

33990

47 碌H

Primary

Node

SLEEP

MCU

LOAD

Secondary

Nodes

GND

4X/LOOP

This document contains certain information on a new product.

Specifications and information herein are subject to change without notice.

漏 Motorola, Inc. 2003

For More Information On This Product,

Go to: www.freescale.com

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