Infineon Technologies MB91F264BPMC-G-N2E1

Overview

MB91F264BPMC-G-N2E1 from Infineon Technologies is a 32-bit FR family microcontroller featuring 256 KB on-chip Flash memory, 16 KB RAM, and integrated CAN 2.0B controller with 16 message objects. It operates at up to 66 MHz, supports single-cycle instruction execution, and targets automotive body control modules requiring deterministic real-time response.

For engineers reviewing the MB91F264BPMC-G-N2E1 datasheet, MB91F264BPMC-G-N2E1 pinout, MB91F264BPMC-G-N2E1 application, or MB91F264BPMC-G-N2E1 equivalent, key selection criteria include CAN interface timing compliance, Flash endurance (100k write/erase cycles), operating temperature range (–40°C to +125°C), and support for JTAG-based debugging and flash programming.

Technical Context

This MCU implements Fujitsu's FR core architecture with 32-bit data path and Harvard memory organization. It integrates a 16-channel 10-bit ADC, 4-channel 16-bit timer unit with PWM output capability, and a programmable watchdog timer with independent clock source.

The device includes a dedicated CAN controller compliant with ISO 11898-1:2003, supporting both standard and extended frame formats, automatic retransmission, and error confinement. Power management features include multiple low-power modes (HALT, STOP, SLEEP) with wake-up via CAN bus activity or external interrupt.

Key Specifications

Pinout & Package

MB91F264BPMC-G-N2E1 is housed in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad for enhanced heat dissipation in automotive under-hood environments.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 32-bit automotive microcontroller applications.

Compared with MB91F264BPMC-G-N2E1, the MB91F265 variant offers headroom for feature expansion without layout change, while the SPC560B50 demands additional interface components but delivers higher CAN channel count and broader ecosystem tooling support.

Availability

MB91F264BPMC-G-N2E1 is available at Aetrix Electronics and suitable for automotive body electronics, door control units, and roof module designs requiring stable component supply across extended production lifecycles.

Supply support for MB91F264BPMC-G-N2E1 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 is a German semiconductor manufacturer specializing in power management, automotive ICs, and security solutions, with global manufacturing and R&D centers.

The FR family of MCUs was developed specifically for cost-sensitive, high-reliability automotive body electronics applications demanding CAN connectivity, functional safety features, and long-term supply stability.

FAQ

Does MB91F264BPMC-G-N2E1 support ISO 11898-1:2003 compliant CAN communication?

Yes. The integrated CAN controller fully complies with ISO 11898-1:2003, supporting bit rates up to 1 Mbps, standard/extended frames, automatic retransmission, and error confinement. It requires an external CAN transceiver (e.g., TJA1042) for physical layer interfacing.

What is the maximum operating frequency and associated timing margin for Flash access?

The MB91F264BPMC-G-N2E1 operates at up to 66 MHz with zero-wait-state Flash access across its full voltage and temperature range. Internal prefetch buffer and cache-like instruction fetch mechanism ensure deterministic execution timing critical for real-time control loops.

Is the 16 KB RAM protected against soft errors, and how is it implemented?

Yes. The 16 KB SRAM includes parity checking on all data bits. A parity error triggers a non-maskable interrupt (NMI), allowing firmware to log the event and initiate safe state transition. Parity generation and checking are handled entirely in hardware without CPU overhead.

Can MB91F264BPMC-G-N2E1 be programmed in-system via JTAG without removing it from the PCB?

Yes. The device supports full in-circuit programming and debugging via its 5-pin JTAG interface (TRST, TDI, TDO, TCK, TMS). No external programming voltage is required-standard 3.3 V or 5 V supply suffices, and flash erase/write operations are performed under CPU control using on-chip ROM routines.