MC33742PEPR2

Overview

The MC33742PEPR2 is a System Basis Chip (SBC) from the MC33742 series, manufactured by NXP Semiconductors. It integrates an enhanced high-speed CAN transceiver with multiple power management functions for automotive environmental control units. The device supports CAN 2.0 A and B protocols at data rates up to 1 Mb/s. It features two 5.0 V/200 mA LDO regulators, four external wake-up inputs, and a 15 ms reset duration. Operating parameters include a supply voltage range of 5.5 V to 18 V, a maximum power dissipation of 1 W, and an operating temperature range from -40°C to +125°C. The component utilizes an SPI interface for configuration and is housed in a QFN-48 package.

Feature Summary

• Integrates a high-speed CAN transceiver with bus diagnostic capabilities for short-to-ground, short-to-VDD, and short-to-VSUP detection.
• Provides dual 5.0 V low-drop regulators with current limiting, overtemperature pre-warning, and output monitoring.
• Supports multiple operational modes including normal, standby, stop, and sleep with low current consumption.
• Includes a software-programmable window watchdog, interrupt, and reset functionality controlled via SPI.

Applications

• Automotive environmental control units
• Module-to-module communication systems requiring CAN 2.0 compatibility
• Electronic control units needing integrated power management and CAN interface

Procurement Notes

Verify the manufacturer designation as NXP Semiconductors, as the MC33742 family was acquired from Freescale Semiconductor. Confirm the suffix PEPR2 indicates the specific QFN-48 tape and reel packaging variant. Check for end-of-life status, as related MC33742 variants are noted as obsolete or transitioning. Ensure compliance with RoHS directives and moisture sensitivity levels before procurement.

Selection Notes

Select this component when a combined SBC and CAN transceiver solution is required for automotive applications. The MC33742PEPR2 is suitable for designs needing dual 5V regulation and multiple wake-up sources. Compare against other MC33742 variants based on package type (QFN vs SOIC) and reeling requirements. Ensure the system design accommodates the 15 ms reset duration and 1 W power dissipation limits within the specified thermal environment.

Part Context

The MC33742 belongs to a family of System Basis Chips designed for robust automotive environments. Originally developed by Motorola/Freescale, the product line is now managed by NXP Semiconductors. This specific part number represents the QFN-48 packaged version with tape-and-reel delivery, distinguishing it from SOIC-28 variants like the MC33742PEG. The series is characterized by its integration of power management and high-speed communication interfaces.

Replacement Considerations

Direct replacements within the same package and pinout include other MC33742 variants such as MC33742PEP. Verify functional equivalence regarding regulator outputs and CAN transceiver specifications. Cross-reference with NXP's official substitution guides for any updated revisions or discontinued suffixes.