Infineon Technologies CY90387SPMT-GS-239E1

Overview

CY90387SPMT-GS-239E1 from Cypress Semiconductor is a 16-bit F2MC-16LX microcontroller with integrated full-CAN 2.0A/B controller, 64 KB Flash ROM, 2 KB RAM, and 34 general-purpose I/O ports including four high-current outputs. It operates at up to 16 MHz (62.5 ns instruction cycle), supports 8/10-bit A/D conversion across 8 channels (6.125 µs conversion time), and features dual 16-bit reload timers, 4-channel input capture, and low-power sleep/watch/stop modes. Used in real-time process control for consumer appliances requiring CAN-based communication and deterministic timing.

For engineers reviewing the CY90387SPMT-GS-239E1 datasheet, CY90387SPMT-GS-239E1 pinout, CY90387SPMT-GS-239E1 application, or CY90387SPMT-GS-239E1 equivalent, key selection criteria include its LQFP-48 package, built-in PLL clock multiplier (1×–4×), sub-clock operation at 8.192 kHz, 32-bit accumulator for long-word arithmetic, and CAN wake-up capability with external interrupt support on four dedicated pins.

Technical Context

This MCU implements the F2MC-16LX architecture with enhanced C-language compatibility via system stack pointer, barrel shift, and rich bit-processing instructions. Its 24-bit internal addressing enables access to a 16 MB memory space, while the 32-bit accumulator supports native 32-bit arithmetic without software emulation.

The peripheral set includes a UART (SCI) with full-duplex double-buffering, an 8/16-bit PPG timer supporting arbitrary pulse generation, and a dedicated Delay Interrupt Generator Module for RTOS task switching. The CAN controller provides eight message buffers and programmable bit timing for data rates from 10 kbps to 1 Mbps using a 16 MHz machine clock.

Key Specifications

Pinout & Package

LQFP-48 package (0.50 mm pitch), 7 mm × 7 mm body, exposed pad optional. Pin 1 marked by dot; top view shown in official datasheet Figure 4.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit CAN microcontroller applications.

Compared with MB90F387 and MB90387S, CY90387SPMT-GS-239E1 offers field-programmable Flash memory for iterative development and firmware updates, while retaining full hardware compatibility with the MB90387 series - making it optimal for prototyping, small-batch production, and applications requiring post-deployment flexibility.

Availability

CY90387SPMT-GS-239E1 is available at Aetrix Electronics and suitable for home appliance motor control, automotive body electronics, industrial PLC I/O expansion, and smart energy metering gateways requiring stable component supply and long-term lifecycle support.

Supply support for CY90387SPMT-GS-239E1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Cypress Semiconductor (now part of Infineon Technologies) designs high-performance embedded solutions for automotive, industrial, and consumer applications, emphasizing integration, reliability, and developer enablement.

This device belongs to the MB90385 series - a family of 16-bit microcontrollers optimized for real-time process control in cost-sensitive, high-volume consumer electronics where CAN connectivity, analog sensing, and deterministic timing are essential.

FAQ

What is the maximum operating frequency and corresponding instruction cycle time?

The CY90387SPMT-GS-239E1 achieves a maximum machine clock of 16 MHz using its internal PLL (×4 multiplication of a 4 MHz crystal). At this frequency, the minimum instruction execution time is 62.5 ns. This timing is confirmed in the datasheet's "CPU functions" table and applies to basic instructions under ideal pipeline conditions.

Does this MCU support CAN FD or only classical CAN?

This device supports only Classical CAN per ISO 11898-1:2003 (CAN 2.0A/B specifications), with data rates from 10 kbps to 1 Mbps. It does not implement CAN FD features such as flexible data-rate switching, extended data length, or CRC enhancements - those require newer architectures like Infineon's XMC or AURIX families.

How many A/D channels can be converted simultaneously, and what triggers conversion?

The 8/10-bit A/D converter supports sequential conversion across up to eight channels but performs conversions one at a time. Conversion is triggered either by software command, internal timer match, or external signal on the ADTG pin (P37), which latches on rising/falling edge per configuration - enabling synchronization with mechanical or process events.

Is the Flash memory endurance and data retention specified?

Yes: the 64 KB Flash supports a minimum of 10,000 program/erase cycles and guarantees data retention for 20 years at 85°C or 40 years at 25°C. These values are documented in the "Flash Memory Program/Erase Characteristics" section (page 70) of the official datasheet (Doc # 002-07765 Rev. *A).