Infineon Technologies MB91F469GBPB-GS-K6

Overview

MB91F469GBPB-GS-K6 from Infineon Technologies (formerly Cypress) is a 32-bit FR60 RISC microcontroller designed for automotive and industrial embedded control. It features a 100 MHz core clock, 6-channel C-CAN controller (up to 1 Mbps), 32-channel 10-bit ADC (1 μs conversion), 205 GPIO, and operates from −40°C to +125°C in a 320-pin BGA package - deployed in engine control units and body electronics.

For engineers reviewing the MB91F469GBPB-GS-K6 datasheet, MB91F469GBPB-GS-K6 pinout, MB91F469GBPB-GS-K6 application, or MB91F469GBPB-GS-K6 equivalent, key selection criteria include CAN/LIN coexistence, real-time interrupt latency (6-cycle save), on-chip voltage supervision, and 1.8 V internal logic with 3–5 V supply tolerance.

Technical Context

The FR60 CPU implements a five-stage pipeline Harvard architecture with 16-bit fixed-length instructions and full 32-bit addressing, enabling deterministic 1-instruction-per-cycle execution. It supports register interlock, C-language function entry/exit, and hardware multiplier (3-cycle 16-bit signed multiply).

Peripheral integration includes dual-clock domain operation (CLKB/CLKP/CLKCAN), dedicated LIN-USART with FIFO (8 channels), I²C (400 kbps, 4 channels), and a 128-message-buffer C-CAN controller with programmable message objects - all synchronized to independent clock sources for mixed-criticality timing.

Key Specifications

Pinout & Package

Package: 320-pin plastic BGA (BGA-320), 17 mm × 17 mm, 0.8 mm pitch, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with RH850/F1K and S32K144, MB91F469GBPB-GS-K6 delivers superior interrupt latency consistency (6 cycles guaranteed) and native LIN/CAN coexistence in a single die - making it optimal for cost-constrained, latency-critical automotive nodes where transceiver count and BOM simplicity matter.

Availability

MB91F469GBPB-GS-K6 is available at Aetrix Electronics and suitable for engine control units, body control modules, and industrial motor drives requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for MB91F469GBPB-GS-K6 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 leader specializing in power management, automotive MCUs, and security ICs - with global manufacturing, R&D, and automotive qualification expertise.

The CY91F469G series was developed by Cypress (now Infineon) to deliver high-speed deterministic control for automotive body and powertrain systems - emphasizing real-time responsiveness, mixed-signal integration, and AEC-Q100 reliability.

FAQ

What is the maximum operating frequency of the MB91F469GBPB-GS-K6 core?

The MB91F469GBPB-GS-K6 FR60 CPU operates at up to 100 MHz when supplied with 1.8 V from its internal step-down regulator. This frequency is achievable across the full −40°C to +125°C temperature range and is validated per AEC-Q100 Grade 1 requirements. The core uses a five-stage pipeline and executes most instructions in a single cycle.

Does this microcontroller support CAN FD or only classical CAN?

The MB91F469GBPB-GS-K6 integrates C-CAN v2.0 controllers supporting only Classical CAN (ISO 11898-1), with a maximum bit rate of 1 Mbps. It does not implement CAN FD features such as flexible data-rate, extended data length, or CRC enhancements. For CAN FD, designers must select Infineon's newer AURIX™ or XMC™ families.

How many independent clock domains does the device support?

The MB91F469GBPB-GS-K6 supports three independent clock domains: CLKB (core/bus clock), CLKP (peripheral clock), and CLKCAN (CAN interface clock). Each domain can be configured with separate dividers and sources (main oscillator, PLL, sub-clock, or RC oscillator), enabling precise timing isolation for real-time peripherals like CAN, ADC, and timers.

Is the on-chip flash memory protected against unauthorized readout?

Yes - the MB91F469GBPB-GS-K6 includes flash protection features including lock bits that prevent external readout via debug interfaces (JTAG/DSU). Once enabled, flash contents cannot be accessed externally, and the protection persists through power cycles. Flash CRC calculation is also supported to verify integrity during boot or firmware updates.