mc33902 Freescale Semiconductor, Inc, mc33902 Datasheet
mc33902
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mc33902 Summary of contents
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... Advance Information High Speed CAN Interface with Embedded 5.0 V Supply The MC33902 is a high speed CAN physical interface. The device includes an internal 5.0 V supply for the CAN bus transceiver, and requires only a connection to a battery line. The MC33902 provides 4 operation modes, including low power modes with remote and local wake-up ...
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INTERNAL BLOCK DIAGRAM 5.0 V Regulator VSUP Monitoring VIO Vio TXD RXD EN STBY ERR GND Figure 2. 33902 Simplified Internal Block Diagram 33902 2 INTERNAL BLOCK DIAGRAM INH VDD Detector INH control V SUP Pattern Wake-up Detection Receiver Driver ...
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Table 1. 33902 Pin Definitions Pin Number Pin Name Pin Function 1 TXD Input 2 GND Output 3 VDD Output 4 RXD Output 5 VIO Input 6 EN Input 7 INH Output 8 ERR Output 9 WAKE Input 10 VSUP ...
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ELECTRICAL CHARACTERISTICS MAXIMUM RATINGS Table 2. Maximum Ratings All voltages are with respect to ground, unless otherwise noted. Exceeding these ratings may cause a malfunction or permanent damage to the device. Ratings ELECTRICAL RATINGS DC voltage on VSUP DC voltage ...
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STATIC ELECTRICAL CHARACTERISTICS Table 3. Static Electrical Characteristics Characteristics noted under conditions 5.5 V ≤ V values noted reflect the approximate parameter means at T Characteristic INPUT PIN (VSUP) Nominal voltage range Extended voltage range, fully functional, parametric value(s) not ...
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ELECTRICAL CHARACTERISTICS STATIC ELECTRICAL CHARACTERISTICS Table 3. Static Electrical Characteristics Characteristics noted under conditions 5.5 V ≤ V values noted reflect the approximate parameter means at T Characteristic LOGIC INPUT PINS (EN, STBY, TXD) High Level Input Voltage Low Level ...
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Table 3. Static Electrical Characteristics Characteristics noted under conditions 5.5 V ≤ V values noted reflect the approximate parameter means at T Characteristic LOGIC INPUT/OUTPUT PINS (CANH, CANL) (CONTINUED) CANH output current capability - Dominant state CANL output current capability ...
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ELECTRICAL CHARACTERISTICS DYNAMIC ELECTRICAL CHARACTERISTICS DYNAMIC ELECTRICAL CHARACTERISTICS Table 4. Dynamic Electrical Characteristics Characteristics noted under conditions 5.5 V ≤ V values noted reflect the approximate parameter means at T Characteristic TIMING (REF TO FIG 7) TXD Dominant State Timeout ...
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Table 4. Dynamic Electrical Characteristics Characteristics noted under conditions 5.5 V ≤ V values noted reflect the approximate parameter means at T Characteristic Time from Rising Edge of STBY to ERR valid data Delay Between P_SPI Command and CAN in ...
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ELECTRICAL CHARACTERISTICS TIMING DIAGRAMS TXD 0 DIFF RXD Figure 6. Propagation Delays TXD to CAN and CAN to RXD µF 5.0 V 100 nF 5.0 V Signal generator 15 pF Figure 7. Test Circuit for ...
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TRANSMIT DATA (TXD) This input is the CAN transmit data pin the interface from the MCU to the output on the CAN bus. If TxD is low (dominant), then the signal on the CAN bus will be dominant ...
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FUNCTIONAL DESCRIPTION FUNCTIONAL PIN DESCRIPTION CAN LOW (CANL) This is the CAN Low input/output pin. CANL circuitry is design to work as a low side switch connected to GND. In the recessive state, this switch is turned off and CANL ...
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FUNCTIONAL DEVICE OPERATION STBY and > low threshold IO IO Normal mode (STBY ON, INH Driver ON; Receiver ON, SPLIT 2.5 V ERR report: wake-up source & (7) (V ...
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FUNCTIONAL DEVICE OPERATION OPERATIONAL MODES Table 5. Functional Table STBY EN Mode Standby Sleep OFF sleep Listen Only Normal ON Notes 8. With ...
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DEVICE STATE DESCRIPTION STANDBY MODE Standby mode is a reduced current consumption mode. CANH and CANL lines are terminated to GND, the SPLIT pin is high-impedance. In order to monitor bus activities, the CAN wake-up receiver is ON, INH output ...
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FUNCTIONAL DEVICE OPERATION OPERATIONAL MODES The flag is cleared by leaving the Normal mode P_SPI reading. WAKE Pin - Local Wake-up (WU) From the Standby Sleep or Sleep mode, this flag is set if a ...
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Figure 11 shows the meaning of the ERR pin versus the device state, the state transition and the events on TXD. DEVICE MODE NORMAL Local Wake-up => ERR low; CAN Wake-up => ERR high STBY = ...
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... CANH-CANL CANL CANL-DOM RXD 2.5 V SPLIT MC33902: bus driver Normal or Listen Only mode Figure 12. Bus Signal in Normal and Low Power Mode Wake-up When the CAN interface is in Sleep mode with wake-up enabled, the CAN bus traffic is detected. The CAN bus wake- up signal is a pattern wake-up. CAN wake-up cannot be disabled ...
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CAN BUS DIAGNOSTIC The aim is to implement a diagnostic of bus short-circuit to GND, VBAT, and the internal application circuit board 5.0 V. Several comparators are implemented on the CANH and TX Logic Diag Figure 14. CAN Bus Simplified ...
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FUNCTIONAL DEVICE OPERATION OPERATIONAL MODES communication, and thus a proper failure identification (requires 5 pulses on TXD). The bus dominant clamp circuit will help to determine such failure situation. RX Permanent Recessive Failure The aim of this detection is to ...
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Important Information for Bus Driver Reactivation RXD The driver stays disabled until the failure is cleared ( longer permanent recessive). One transition on the CAN bus (internal differential receiver transition), and the bus driver is activated by entering ...
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FUNCTIONAL DEVICE OPERATION OPERATIONAL MODES Distinction Between P_SPI and Traditional Operation. The distinction between static device control and control via P_SPI is performed by the duration of the EN and STBY level. If the EN and STBY levels change before ...
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Description Set LxWU Reset Action Description Set CANWU Reset Action Description Set In normal and listen only modes VMONF Reset Entering low power mode or (Failure removed + P_SPI reading (Listen Only and Normal mode)) ERR Action ...
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FUNCTIONAL DEVICE OPERATION OPERATIONAL MODES Description CANSR (1,0) Configure Reset Action Description Configure CAN WU - pattern Reset Action When high wake-up occurs after 1 pulse of a minimum of 4.0 μs (parameter). When low, (default) wake- Description When this ...
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Description Set In Normal and Listen Only modes, if the RXD permanent recessive condition is detected RX-PR Reset Entering low power mode, the RXD recovery condition reached + P_SPI reading (Listen Only and Normal Action Set the local failure flag, ...
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FUNCTIONAL DEVICE OPERATION OPERATIONAL MODES Description Set In Normal and Listen Only modes, if the V V Reset Entering low power mode, V SUV Action When V Description Set V low Reset Entering low power mode Action After ...
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... ERR SPLIT 30 Ω TXD CANL GND RXD Supported CAN terminations Standard termination CANH C4 No SPLIT 60 Ω CAN bus connect CANL C5 MC33902: WAKE Pin Configurations Switch to V BAT V BAT Rb R1 WAKE C4 S TYPICAL APPLICATIONS V BAT component list: Rb D1: 1N4004 type R1 C1: >=100 nF C2: > ...
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... COMPARISON WITH COMPETITION 14 PIN HIGH SPEED CAN TRANS- CEIVER COMPARISON WITH COMPETITION 14 PIN HIGH SPEED CAN TRANSCEIVER The table below is a comparison between the MC33902 and the competition 14 pin high speed CAN transceiver having no embedded power supply. Item V pin Output. Requires local decoupling capacitor(s). No extra DD load should be connected ...
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For the most current package revision, visit www.freescale.com and perform a keyword search using the 98ASB42565B listed below. Analog Integrated Circuit Device Data Freescale Semiconductor PACKAGING PACKAGE DIMENSIONS EF-PIN (PB-FREE) 98ASB42565B ISSUE H PACKAGING PACKAGE DIMENSIONS 33902 29 ...
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REVISION HISTORY REVISION DATE DESCRIPTION OF CHANGES • Initial Release 8/2009 3.0 33902 30 REVISION HISTORY Analog Integrated Circuit Device Data Freescale Semiconductor ...
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... Freescale Semiconductor was negligent regarding the design or manufacture of the part. Freescale™ 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. 2009. All rights reserved. MC33902 Rev. 3.0 8/2009 ...