Datasheet > MC33990EFR2

MC33990EFR2

更新时间： 2024-10-02 19:55:23

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恩智浦 - NXP		/
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描述
MC33990EFR2

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技术参数
数据手册

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MC33990EFR2 技术参数

生命周期：	Transferred	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	5.74
Base Number Matches：	1

MC33990EFR2 数据手册

Analog Products Fact Sheet

Networking

MC33990

Enhanced Class B Serial Transceiver

LIN, ISO-9141

J-1850 Physical

Interfaces

33990 SIMPLIFIED APPLICATION DIAGRAM

DESCRIPTION

The 33990 provides bi-directional half-duplex

communication meeting the automotive SAE

Standard J-1850 Class B Data

Communication Network Interface

specification. It interfaces directly to

microcontrollers, serves to transmit and

receive single-wire bus data at 10.4 kB/s

using variable pulse width modulation,

operates from vehicle’s 12 V battery or board

level DC power source, and shifts

33990

V_BAT

+VBAT

Primary

Node

BUS

microcontroller’s 5.0 V CMOS logic level

signals to 0 to 7.0 V reduced radiated EMI

waveshaped signals. A tristateable 4X/Loop

pin invokes Normal or Disabled Waveshaping,

or Looped-Back Tx output to Rx signal after

being waveshaped but not transmitted over

the bus to check bus integrity.

SLEEP

Secondary

Nodes

LOAD

GND

MCU

The 33990 is designed to enhance robustness

to a double fault condition. (Loss and

reconnection of module battery while module

ground is lost.)

4X/LOOP

APPLICATIONS

PERFORMANCE

TYPICAL VALUES

J-1850 V

• Farm Equipment

Bus Output

PWM

• Industrial Equipment

• Robotic Systems

• Automotive Systems

Data Rate

to 20 kB/s

9.0 – 16 V

20 µA

Operating Voltage

Sleep/Stdby Current

ESD

• Applications where Module-to-Module

Communication is Required

± 2000 V

• Marine and Aircraft Networks

Operating Temperature

-40°C ≤ T ≤ 125°C

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