Datasheet > 33889

33889

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
飞思卡尔 - FREESCALE		/
页数	文件大小	规格书
60页	2212K
描述
System Basis Chip with Low Speed Fault Tolerant CAN Interface

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33889 数据手册

Document Number: MC33889

Rev. 12.0, 3/2007

Freescale Semiconductor

Technical Data

System Basis Chip with Low

Speed Fault Tolerant CAN

Interface

33889

An SBC device is a monolithic I^Ccombining many functions

repeatedly found in standard microcontroller-based systems, e.g.,

protection, diagnostics, communication, power, etc. The 33889 is an

SBC having fully protected, fixed 5.0 V low drop-out regulator, with

current limit, over-temperature pre-warning and reset.

SYSTEM BASIS CHIP

An output drive with sense input is also provided to implement a

second 5.0 V regulator using an external PNP. The 33889 has Normal,

Standby, Stop and Sleep modes; an internally switched high-side

power supply output with two wake-up inputs; programmable timeout

or window watchdog, Interrupt, Reset, SPI input control, and a low-

speed fault tolerant CAN transceiver, compatible with CAN 2.0 A and

B protocols for module-to-module communications. The combination

is an economical solution for power management, high-speed

communication, and control in MCU-based systems.

DW SUFFIX

EG SUFFIX (PB-FREE)

PLASTIC PACKAGE

98ASB42345B

28-PIN SOICW

Features

• VDD1: 5.0 V low drop voltage regulator, current limitation,

overtemperature detection, monitoring and reset function with total

current capability 200 mA

• V₂: tracking function of VDD1 regulator; control circuitry for external

bipolar ballast transistor for high flexibility in choice of peripheral

voltage and current supply

ORDERING INFORMATION

Temperature

Device

Package

Range (T )

MC33889BDW/R2

MCZ33889BEG/R2

MC33889DDW/R2

*MCZ33889DEG/R2

• Four operational modes

-40°C to 125°C

28 SOICW

• Low standby current consumption in Stop and Sleep modes

• Built-in low speed 125 kbps fault tolerant CAN physical interface.

• External high voltage wake-up input, associated with HS1 VBAT

switch

*Recommended for new designs

• 150 mA output current capability for HS1 VBAT switch allowing

drive of external switches pull-up resistors or relays

• Pb-Free Packaging Designated by Suffix Code EG

PWR

33889

VDD1

GND

VSUP

5.0 V

V2CTRL

RST

INT

MCU

HS1

Local Module Supply

Wake-Up Inputs

Safe Circuits

SCLK

MOSI

MISO

SCLK

MOSI

MISO

SPI

WDOG

RTH

Twisted

Pair

TXD

RXD

CANH

CANL

CAN Bus

RTL

Figure 1. 33889 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...60

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