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MCZ33742 Datasheet System Basis Chip

Manufacturer: Freescale Semiconductor (now NXP Semiconductors)

Overview: www.DataSheet4U.com Freescale Semiconductor Advance Information Document Number: MC33742 Rev. 10.0, 5/2007 System Basis Chip (SBC) with Enhanced High-Speed CAN Transceiver The 33742 and the 33742S are SPI-controlled System Basis Chips (SBCs) combining many frequently used functions along with a CAN 2.0compliant transceiver, used in many automotive electronic control units (ECUs). The 33742 SBC has a fully protected fixed 5.0 V low dropout internal regulator with current limiting, overtemperature pre-warning, and reset. A second 5.0 V regulator can be implemented using external pass PNP bipolar junction pass transistor driven by the SBC’s external V2 sense input and V2 output drive pins. The SBC has four main operating modes: Normal, Standby, Stop, and Sleep mode. Additionally there is an internally switched high-side power supply output, four wake-up inputs pins, a programmable window watchdog, interrupt, reset, and a SPI module for communication and control. The high-speed CAN A and B transceiver is available for intermodule communication.

Key Features

  • 1.0 Mbps CAN Transceiver Bus Interface with Bus Diagnostic Capability.
  • SPI Control at Frequencies up to 4.0 Mhz.
  • 5.0 V Low Dropout Voltage Regulator with Current Limiting, Overtemperature Pre-Warning, and Output Monitoring and Reset.
  • A Second 5.0 V Regulator Capability using an External Series Pass Transistor.
  • Normal, Standby, Stop, and Sleep Modes of Operation with Low Sleep and Stop Mode Current.
  • A High-Side (HS) Switch Output Driver for C.

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