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33742 Dataheets PDF



Part Number 33742
Manufacturers Motorola Inc
Logo Motorola  Inc
Description System Basis Chip (SBC)
Datasheet 33742 Datasheet33742 Datasheet (PDF)

Freescale Semiconductor, Inc. MOTOROLA SEMICONDUCTOR TECHNICAL DATA Document order number: MC33742 Rev 2.0, 10/2004 Advance Information System Basis Chip (SBC) with Enhanced High-Speed CAN Transceiver The 33742 and the 33742S are monolithic integrated circuits combining many functions frequently used by automotive environmental control units (ECUs). The 33742 is an SBC having a fully protected fixed 5.0 V low-drop regulator with current limit, overtemperature pre-warning, and reset. An output d.

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Freescale Semiconductor, Inc. MOTOROLA SEMICONDUCTOR TECHNICAL DATA Document order number: MC33742 Rev 2.0, 10/2004 Advance Information System Basis Chip (SBC) with Enhanced High-Speed CAN Transceiver The 33742 and the 33742S are monolithic integrated circuits combining many functions frequently used by automotive environmental control units (ECUs). The 33742 is an SBC having a fully protected fixed 5.0 V low-drop regulator with current limit, overtemperature pre-warning, and reset. An output drive with sense input is also provided to implement a second 5.0 V regulator, using an external PNP bipolar junction transistor. The 33742 has normal, standby, stop, and sleep modes, an internally switched high-side power supply output with four wake-up inputs, programmable window watchdog, interrupt, reset, SPI input control, and a high-speed CAN transceiver compatible with CAN 2.0 A and B protocols for module-to-module communication. Features • High-Speed 1.0 Mbps CAN Interface with Bus Diagnostic Capability (Detection of CANH and CANL Short to Ground, to VDD, and to VSUP) • Low-Drop Voltage 5.0 V, 200 mA VDD Regulator with Current-Limiting, Overtemperature Pre-Warning, and Output Monitoring with Reset • Additional 5.0 V Regulator with External Series Pass Transistor • Normal, Standby, Stop, and Sleep Modes with Low Sleep and Stop Mode Current • 150 mA High-Side Switch Output for Control of External Circuitry • Four External Wake-Up Inputs • Software-Programmable Watchdog Window, Interrupt, and Reset 33742 33742S SYSTEM BASIS CHIP WITH ENHANCED HIGH-SPEED CAN Freescale Semiconductor, Inc... DW SUFFIX CASE 751F-05 28-TERMINAL SOICW ORDERING INFORMATION Device MC33742DW/R2 MC33742SDW/R2 Temperature Range (TA) -40°C to 125°C Package 28 SOICW 33742 Simplified Application Diagram VPWR 33742 33742 5.0 V MCU RST VDD VSUP V2 V2CTRL V2 VPWR CS SCLK MOSI MISO SPI CS SCLK MOSI MISO INT L0 L1 L2 L3 WDOG HS CANH CANL GND Safe Circuitry ECU Local Supply Twisted Pair CAN Bus TXD RXD GND This document contains certain information on a new product. Specifications and information herein are subject to change without notice. © Motorola, Inc. 2004 For More Information On This Product, Go to: www.freescale.com Freescale Semiconductor, Inc. Table 1. Significance Device Differences Motorola Part No. 33742 Reset Duration 15 ms (typical) Device Differences The duration of the reset mode, in which the RST terminal is asserted low, is 15 ms typical. Reset mode is entered after device power up, when a VDD undervoltage condition occurred and if the watchdog register is not properly triggered. The duration of the reset mode, in which the RST terminal is asserted low, is 3.5 ms typical. Reset mode is entered after device power up, when a VDD undervoltage condition occurred and if the watchdog register is not properly triggered. See Page 15 33742S 3.5 ms (typical) 15 Freescale Semiconductor, Inc... V2CTRL V2 VSUP VSUP Monitor CAN Dual Voltage Regulator 5.0 V/200 mA Supply VDD Monitor HS Control Mode Control Oscillator Interrupt Watchdog Reset VDD HS L0 L1 L2 L3 Programmable Wake-Up Input INT WDOG RST SPI V2 MOSI SCLK MISO CS CANH CANL High-Speed 1.0 Mbps CAN Physical Interface TXD RXD GND Figure 1. 33742 Simplified Internal Block Diagram 33742 2 For More Information On This Product, Go to: www.freescale.com MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA Freescale Semiconductor, Inc. RXD TXD VDD RST INT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 WDOG CS GND GND GND GND V2 V2CTRL VSUP HS L0 MOSI MISO SCLK GND GND GND GND CANL CANH L3 L2 L1 Freescale Semiconductor, Inc... TERMINAL DEFINITIONS A functional description of each terminal can be found in the System/Application Information section beginning on page 18. Terminal 1 2 3 4 5 6–9 20–23 10 11 12 13 14–17 Terminal Name RXD TXD VDD RST Formal Name Receive Data Transmit Data Voltage Digital Drain Reset Output (Active LOW) Interrupt Output (Active LOW) Ground Voltage Source 2 Voltage Source 2 Control Voltage Supply High-Side Output Level 0 –3 Inputs CAN bus receive data output CAN bus transmit data input 5.0 V regulator output terminal. Definition This is the device reset output whose main function is to reset the MCU. This terminal has an internal pull-up current source to VDD This output is asserted LOW when an enabled interrupt condition occurs. The output is a push-pull structure. Ground of the IC. These terminals are connected to the package lead frame in order to provide a thermal path. Sense input for V2 regulator using external ballast. V2 is also the internal supply for the CAN cell. Output driver for the external ballast transistor. Supply input for the complete device. Output of internal high-side switch. Current capability is internally limited to 150 mA. Input interfaces to external circuitry (switched or ICs). Levels at these terminals can be read by SPI and input can be used as programmable wake-up input .


33702 33742 33742S


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