Infineon Technologies MB91F469QAHPB-GSK6E1

Overview

MB91F469QAHPB-GSK6E1 from Fujitsu Semiconductor is a 32-bit FR60 RISC microcontroller with integrated CAN (3-channel C-CAN), LIN-USART (12-channel), and I²C (3-channel) controllers, operating at up to 80 MHz core frequency and supporting −40 °C to +105 °C ambient temperature in BGA-320 package. It targets real-time embedded control in automotive body electronics and industrial automation systems requiring deterministic communication and mixed-signal processing.

For engineers reviewing the MB91F469QAHPB-GSK6E1 datasheet, MB91F469QAHPB-GSK6E1 pinout, MB91F469QAHPB-GSK6E1 application, or MB91F469QAHPB-GSK6E1 equivalent, key selection criteria include its 320-pin BGA footprint, dual 10-bit ADC modules (32+8 channels), 5-channel DMAC with fly-by transfer support, and hardware clock supervision for fail-safe operation in safety-critical environments.

Technical Context

The MB91F469QAHPB-GSK6E1 implements the FR60 CPU core with five-stage pipeline, 16-bit fixed-length instruction set, and instruction-level multiplier (3-cycle 16-bit signed multiply). It features Harvard architecture enabling concurrent program and data access, and supports C-language via function entry/exit and register multi-load/store instructions.

Its peripheral set includes three independent CAN controllers (1 Mbps max), twelve LIN-USART channels (eight with FIFO), and dual 10-bit successive-approximation ADCs with 1 µs minimum conversion time. Clock supervision monitors both 4 MHz main and 32 kHz sub-oscillators, switching to CR oscillator on failure.

Key Specifications

Pinout & Package

MB91F469QAHPB-GSK6E1 uses a 320-pin plastic BGA (BGA-320P-M06) package with 0.8 mm ball pitch and 17 mm × 17 mm body size. Pin functions are defined per JEDEC standard layout with dedicated signal groups for external bus (32-bit address/data), CAN/LIN/I²C interfaces, DMA control, and general-purpose I/O.

Key Features

Applications

Equivalent & Alternatives

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

Compared with RH850/F1L and TC1766, MB91F469QAHPB-GSK6E1 uniquely combines triple CAN, twelve LIN-USART channels, and dual 10-bit ADCs in a single BGA-320 package-enabling consolidated body control without external protocol ICs or ADCs.

Availability

MB91F469QAHPB-GSK6E1 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, and smart power distribution units requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MB91F469QAHPB-GSK6E1 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

Fujitsu Semiconductor (now part of Socionext Inc.) designed high-reliability microcontrollers for automotive and industrial applications, emphasizing functional safety, mixed-signal integration, and real-time determinism.

The MB91460Q Series was developed specifically for embedded control in harsh environments-integrating CAN, LIN, I²C, dual ADCs, and hardware clock supervision into a single 32-bit RISC platform targeting ASIL-B–capable systems.

FAQ

What is the maximum operating frequency of the MB91F469QAHPB-GSK6E1 core?

The MB91F469QAHPB-GSK6E1 operates at a maximum core frequency of 80 MHz (CLKB), achieved using the on-chip PLL with 4 MHz main oscillator input. This frequency is validated across the full −40 °C to +105 °C operating range and supports deterministic execution of real-time control tasks without throttling.

Does MB91F469QAHPB-GSK6E1 support LIN 2.1 protocol natively?

Yes, the MB91F469QAHPB-GSK6E1 includes hardware LIN-USART modules that implement LIN 2.1 physical layer timing and frame formatting in silicon. Eight of the twelve channels feature dedicated FIFO buffers and automatic sync-break detection, eliminating software overhead for LIN master/slave node implementation.

How many external interrupt sources does MB91F469QAHPB-GSK6E1 provide?

The device provides 32 external interrupt input channels, with 12 shared with CAN RX, LIN-USART SIN, or I²C pins, and 16 shared with ADC input pins. Each channel supports configurable priority (16 levels) and vectorized handling, enabling responsive servicing of time-critical events like CAN message arrival or ADC conversion completion.

Is there on-chip flash memory protection for MB91F469QAHPB-GSK6E1?

No, MB91F469QAHPB-GSK6E1 does not include flash memory protection features such as write/erase lock bits or CRC calculation hardware-unlike later variants MB91FV460B and MB91V460A. Secure firmware updates require external supervision or bootloader-level access control.