MCZ33742SEG

MCZ33742SEG Description

The 33742 and the 33742S SMARTMOS devices are SPI-controlled System Basis Chips (SBCs), combining many frequently used functions, along with a CAN 2.0-compliant 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 prewarning, 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 modes of operation: Normal, Standby, Stop, and Sleep. There is also an internally switched high-side power supply output, four wake- up input pins, a programmable window watchdog, interrupt, reset, and an SPI module for communication and control. For inter-module communication, a high- speed CAN A and B transceiver is available.

MCZ33742SEG Features

• SPI control at frequencies up to 4.0 MHz
• A high side switch output driver for controlling external circuitry
• A second 5.0 V regulator capability using an external series pass transistor
• 1.0 Mbps CAN transceiver bus interface with bus diagnostic capability
• Normal, Standby, Stop, and Sleep modes of operation with low Sleep and Stop mode current
• 5.0 V low dropout voltage regulator with current limiting, overtemperature prewarning, and output monitoring and reset