MC33665ATS4AE

Overview

The MC33665ATS4AE is a general-purpose battery management communication gateway and Transformer Physical Layer (TPL) transceiver manufactured by NXP Semiconductors. It routes messages from TPL ports to standard protocols including SPI, CAN FD, and UART. The device features four independent TPL daisy chain ports supporting up to 2 Mbit/s data rates. It provides an SPI interface to the MCU with a maximum data rate of 10 Mbit/s and supports message buffering for traffic handling. The component operates within a temperature range of -40°C to +125°C and is housed in an LQFP-48 package.

Feature Summary

• Supports SPI, CAN FD, and UART interfaces for microcontroller connectivity
• Features four independent TPL daisy chain ports for scalable network topology
• Includes internal message buffering and synchronization capabilities
• Compatible with MC33771C and MC33772C battery cell controllers

Applications

• Automotive Battery Management Systems (BMS)
• Industrial Data Buses and Battery Management
• E-bikes and E-scooters
• Energy Storage Systems (ESS)

Procurement Notes

Verify end-of-life status as the product may be obsolete or subject to discontinuation. Confirm availability through authorized distributors as stock levels vary. Ensure compliance with RoHS directives and check for specific automotive qualification requirements such as AEC-Q100 before procurement.

Selection Notes

Select this variant when SPI interface and four TPL ports are required without CAN FD gateway functionality. Compare with MC33665ATF4AE if CAN FD support is necessary. Consider MC33664 for legacy single-port applications. Verify package compatibility and operating temperature ranges against system design constraints.

Part Context

Part of the MC33665A series designed for high-speed isolated communication in battery management systems. It serves as a bridge between proprietary TPL networks and standard microcontroller interfaces. The series supports various configurations to accommodate different BMS architectures and scalability needs.

Replacement Considerations

MC33665ATF4AE offers similar TPL port count but includes CAN FD gateway functionality. MC33664 provides a single TPL port with dual SPI architecture. Evaluate functional differences and pin compatibility before substitution.