Infineon Technologies MB96F685RBPMC-GSE2

Overview

MB96F685RBPMC-GSE2 from Infineon Technologies (formerly Cypress) is a 16-bit F2MC-16FX microcontroller with integrated CAN 2.0A/B controller, 128.5KB Flash + 32KB RAM, 14-channel 8/10-bit SAR ADC, and dual-clock domain operation. It delivers 32MHz CPU frequency via on-chip PLL (×8 multiplier from 4–8MHz resonator), achieves 31.2ns instruction cycle time, and supports 13 low-power operating modes - deployed in automotive body control modules requiring deterministic real-time CAN messaging and motor actuation.

For engineers reviewing the MB96F685RBPMC-GSE2 datasheet, MB96F685RBPMC-GSE2 pinout, MB96F685RBPMC-GSE2 application, or MB96F685RBPMC-GSE2 equivalent, key selection criteria include CAN bit-rate up to 1Mbps with ISO16845 certification, dual-operation Flash for seamless firmware updates, stepping motor controller with two synchronized 8/10-bit PWM channels per SMC unit, and hardware watchdog with window function for safety-critical embedded control.

Technical Context

The MB96F685RBPMC-GSE2 implements the F2MC-16FX CPU core with 8-byte instruction queue, barrel shifter, and native 16×16 signed multiply / 32÷16 divide instructions - enabling efficient control algorithm execution. Its clock tree decouples CPU (up to 32MHz) from peripheral domains using independently selectable sources: main oscillator (4–8MHz), subclock (32.768kHz), or internal RC (100kHz/2MHz).

Peripheral integration includes a dedicated Stepping Motor Controller (SMC) with high-current drivers, 4COM×32SEG LCD controller, LIN-capable USARTs with automatic header handling, and a Clock Calibration Unit (CAL) that corrects subclock drift - all coordinated through a centralized Interrupt Controller supporting 8 priority levels and NMI with level-sensitive wake-up capability.

Key Specifications

Pinout & Package

LQFP-80 package with exposed thermal pad; 0.5mm pitch, 12mm × 12mm body size, compliant with JEDEC MO-220. Pin functions validated per CY96680 Series datasheet Rev. *D (pages 7–10).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MB96F683RBPMC-GSE2, this part adds 64KB Flash and integrated SMC for direct motor driving; compared with MB96F685ABPMC-GSE2, it provides certified CAN 2.0B support essential for gateway and ECU communication - making it the only variant meeting full automotive body domain requirements.

Availability

MB96F685RBPMC-GSE2 is available at Aetrix Electronics and suitable for automotive body control modules, HVAC actuator systems, industrial CANopen I/O terminals, and smart appliance motor controllers requiring stable component supply across multi-year production cycles.

Supply support for MB96F685RBPMC-GSE2 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

Infineon Technologies acquired Cypress Semiconductor in 2020 and maintains full product continuity, technical support, and manufacturing for the former Cypress MCU portfolio including the CY96680 series.

This device belongs to the F2MC-16FX microcontroller family, designed specifically for cost-sensitive, real-time automotive and industrial control applications demanding integrated CAN, motor control, and low-power operation - with emphasis on functional safety readiness and long-term supply stability.

FAQ

What is the maximum allowable clock frequency for the MB96F685RBPMC-GSE2's CAN controller?

The CAN controller supports bit rates up to 1Mbps under ISO11898-2 physical layer conditions. This requires a minimum CPU clock of 16MHz (with 16 time quanta per bit) and proper configuration of the CAN Bit Timing Register (CBTR). The 32MHz CPU clock enables robust margin for higher sample points and error recovery - verified per ISO16845 conformance test suite.

Does the MB96F685RBPMC-GSE2 support true simultaneous read-while-write Flash operation?

Yes. Its dual-bank Flash architecture allows full 128.5KB program memory to be partitioned into two independent banks. While one bank executes code, the other can be erased or programmed using the embedded command sequencer - confirmed in Section 14.8 of the datasheet with write/erase suspend/resume functionality and sector-level protection.

How is the stepping motor controller powered, and what current drive capability does it provide?

The SMC uses a dedicated DVcc/DVss power domain separate from the core logic supply. Each of its four high-current outputs delivers up to 200mA sink/source capability with slew-rate control (Section 14.6), enabling direct drive of unipolar stepper coils rated up to 24V/200mA without external drivers - validated in Cypress Application Note AN95642.

Can the internal RC oscillator serve as the primary clock source for CAN communication?

No. The internal RC oscillator (100kHz/2MHz) lacks the stability and accuracy required for CAN bit timing. The CAN controller mandates use of the main oscillator (4–8MHz resonator/crystal) or PLL-derived clock - as specified in Section 14.4 AC Characteristics, where RC oscillator jitter exceeds ±1.5% tolerance needed for 1Mbps operation.