Analog Products Fact Sheet Networking MC33897
Single Wire CAN Transceiver
DESCRIPTION
The 33897 Series provides a physical layer for digital communications purposes using a Carrier Sense Multiple Access/Collision Resolution (CSMA/ CR) data link operating over a single wire medium. This is more commonly referred to as Single Wire Controller Area Network (CAN). The 33897 Series operates directly from a vehicle's 12 V battery system or a broad range of DC-power sources. It can operate at either low or high (33.33 kbps or 83.33 kbps) data rates. A highvoltage wake-up feature allows the device to control the regulator used in support of the MCU and other logic. The device includes a control terminal that can be used to put the module regulator into Sleep mode. The presence of a defined wake-up voltage level on the bus will reactivate the control line to turn the regulator and the system back on. The device complies with the GMW3089v2.4 General Motors Corporation specification. CAN Physical Interface 33897 SIMPLIFIED APPLICATION DIAGRAM
VCC Power Source VCC Voltage Regulator EN Battery VBATT VCC CNTL TXD RXD MCU MODE0 MODe1 GND 4 BUS LOAD SWC BUS 33897/A/C/T VCC Battery VCC TXD RXD MCU VBATT Freescale recommends the MCZ33897CEF (14-lead) or the MCZ33897DEF (8-lead) for all new designs. BUS LOAD SWC BUS MODE0 MODE1 GND 33897B/D APPLICATIONS · Automotive Networks · Farm Equipment · Industrial Networks · Applications Requiring Module-to-Module Communication · Marine and Aircraft Networks PERFORMANCE Bus Output Data Rate Operating Voltage Sleep/Standby Current (75 µA on 33897T) ESD Bus Terminal All other Terminals Operating Temperature TYPICAL VALUES CAN to 83.33 kbps 7.0 V to 16 V 60 µA (MAX) ±4000 V See Data Sheet -40°C TA 125°C FEATURES · Waveshaping for low electromagnetic interference (EMI) · Detects and automatically handles loss of ground · Worst-case Sleep mode current of only 60 µA (75 µA on the 33897T) · Current limit prevents damage due to bus shorts · Built-in thermal shutdown on bus output · Protected against vehicular electrical transients · Undervoltage lockout prevents false data with low battery · Pb-free packaging designated by suffix code EF · Additional devices available in Analog Product Selector Guide SG1002 and Automotive Product Selector Guide - SG187 SHUT DOWN STATUS REPORTING QUESTIONS · What type of module communications protocol are you using? · Do you need a physical layer part for Single Wire CAN? · Do you need a robust single wire industry standard bus for microprocessor communication? PROTECTION Undervoltage Overcurrent/ Short Circuit Overtemperature Open GND DETECT LIMITING CUSTOMER BENEFITS · Industry standard communication protocol · Small package outline · Compatible with General Motors Specification, GMW3089v2.4 · 8 and 14 Terminal Compatibility ORDERING INFORMATION
Device MC33897D/R2 MC33897EF/R2 MCZ33897EF/R2 MCZ33897TEF/R2 MC33897AD/R2 MC33897AEF/R2 MCZ33897AEF/R2 *MCZ33897CEF/R2 MC33897BEF/R2 MCZ33897BEF/R2 *MCZ33897DEF/R2 Data Sheet Order Number MC33897 *Recommended device for all new designs For Electrical detail, see the data sheet Contact Sales for Evaluation Kit Availability 8 SOICN -40°C to 125°C Temperature Range (TA) Package 14 SOICN 8 SOICN 1.27 mm Pitch 4.9 mm x 3.9 mm Body 14 SOICN 1.27 mm Pitch 8.6 mm x 3.9 mm Body FreescaleTM and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc. 2006. All rights reserved. MC33794FS Rev. 8.0