MC33742SPEG

Overview

The MC33742SPEG is a System Basis Chip (SBC) from NXP Semiconductors, housed in a 28-pin SOICW package. It integrates a high-speed CAN transceiver compliant with CAN 2.0 and an SPI interface operating up to 4.0 MHz. The device features a fixed 5.0 V regulator delivering 200 mA at the VDD pin, alongside a second 5.0 V regulator capability using an external pass transistor. It supports four main modes: Normal, Standby, Stop, and Sleep. Key electrical parameters include a supply voltage range of 5.5 V to 18 V, an operating temperature range of -40 °C to 125 °C, and a typical reset duration of 3.5 ms.

Feature Summary

• Integrates a fully protected 5.0 V low dropout internal regulator with current limiting, overtemperature prewarning, and output monitoring.
• Features a high-speed CAN A and B transceiver supporting bus diagnostic capabilities and communication rates up to 1.0 Mbps.
• Includes four programmable wake-up inputs and a high-side power supply output driver for controlling external circuitry.

Applications

• Automotive electronic control units (ECUs)
• CAN 2.0-compliant intermodule communication systems
• System basis chip implementations requiring integrated power management

Procurement Notes

Verify the specific ordering suffix 'PEG' corresponds to the 28-pin SOICW package variant when sourcing components. Confirm that the 'S' designation indicates the 3.5 ms typical reset duration characteristic, which differs from the standard 15 ms duration found in other variants within the same family. Ensure compatibility with the required thermal and electrical specifications for the target application environment.

Selection Notes

Select this component when a compact 28-pin solution is preferred over the 48-pin QFN option. The S variant provides a shorter reset duration suitable for applications requiring faster system recovery times compared to the standard model. Verify that the external circuitry can support the V2 regulator requirements if a second 5.0 V rail is necessary for the design.

Part Context

This part belongs to the MC33742 series of System Basis Chips designed by Freescale Semiconductor, now NXP Semiconductors. The series combines power management and communication interfaces into a single device. The MC33742SPEG specifically denotes the version with the enhanced short reset duration feature, distinguishing it from the base MC33742 model while sharing the same physical package and core functionality.

Replacement Considerations

The MC33742PEG serves as a functional alternative but exhibits a different reset duration (15 ms vs. 3.5 ms). Substitution requires verifying that the longer reset time does not violate system timing constraints. No other direct substitutes are documented in the provided source material.