Datasheet > MC33990_08

MC33990_08

更新时间： 2024-09-30 11:55:27

品牌	Logo	应用领域
飞思卡尔 - FREESCALE		/
页数	文件大小	规格书
16页	1100K
描述
Enhanced Class B Serial Transceiver

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MC33990_08 数据手册

Document Number: MC33990

Rev 4.0, 10/2008

Freescale Semiconductor

Technical Data

Enhanced Class B Serial

Transceiver

33990

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 true 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.

J-1850 SERIAL TRANSCEIVER

D SUFFIX

EF SUFFIX (PB-FREE)

98ASB42564B

Features

8-PIN SOICN

• Designed for SAE J-1850 Class B Data Rates

• Full Operational Bus Dynamics Over a Supply Voltage of 9.0 V

to 16 V

• Ambient Operating Temperature of -40°C to 125°C

• Interfaces Directly to Standard 5.0 V CMOS Microcontroller

• BUS Pin Protected Against Shorts to Battery and Ground

• Thermal Shutdown with Hysteresis

ORDERING INFORMATION

Temperature

Device

Package

Range (T )

MC33990D/DR2

MCZ33990EF/R2

-40°C to 125°C

8 SOICNN

• Voltage Waveshaping of Bus Output Driver

• Internally Reverse Battery Protected

• 40 V Max V_BATCapability

• Pb-Free Packaging Designated by Suffix Code EF

33990

V_BAT

+VBAT

Primary

Node

BUS

SLEEP

Secondary

Nodes

LOAD

GND

MCU

4X/LOOP

Figure 1. 33990 Simplified Application Diagram

Freescale Semiconductor, Inc. reserves the right to change the detail specifications,

as may be required, to permit improvements in the design of its products.

12 3 4 5 6 7...16

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