Infineon Technologies MB89635P-GT-XXX-SH

Overview

MB89635P-GT-XXX-SH from Fujitsu is an 8-bit microcontroller based on the F2MC-8L CPU core, featuring 64 kB program memory address space, dual 16-bit accumulators with A-T architecture, and support for 1/8/16-bit data operations. It implements hardware bit manipulation (set/clear/test), dynamic GEAR power-saving mode with four CPU cycle time ratios, and is targeted for automotive body electronics requiring robust interrupt handling and low-voltage operation down to 2.7 V.

For engineers reviewing the MB89635P-GT-XXX-SH datasheet, MB89635P-GT-XXX-SH pinout, MB89635P-GT-XXX-SH application, or MB89635P-GT-XXX-SH equivalent, key selection criteria include register bank count (32 banks × 8×8-bit registers), clock modulation for EMI reduction, programmable port levels (including automotive-level VIL = 0.5×Vcc), LIN USART support up to 4 Mbaud, and embedded Flash-based reliability in harsh environments.

Technical Context

The MB89635P-GT-XXX-SH implements Fujitsu's F2MC-8L architecture with seven 16-bit CPU registers (PC, IX, EP, SP, PS, AL, AH) and up to 32 selectable register banks for fast context switching on interrupt. Its instruction set supports efficient 8-bit arithmetic, 16-bit multiply/divide, and enhanced bit-level operations without software overhead.

Power management includes four GEAR modes (e.g., 0.4–6.5 μs at 10 MHz), SUB RUN mode using sub-clock, SLEEP mode with active peripherals and halted CPU, and STOP mode with full chip power-down-enabling precise trade-offs between real-time responsiveness and energy consumption in battery-backed automotive modules.

Key Specifications

Pinout & Package

MB89635P-GT-XXX-SH is housed in a 64-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined per Fujitsu F2MC-8L family standard layout, including dedicated reset, clock inputs (main/sub), LIN TX/RX, and multiplexed I/O with programmable drive strength and pull-up control.

Key Features

Applications

Availability

MB89635P-GT-XXX-SH is available at Aetrix Electronics and suitable for automotive door modules, roof consoles, adaptive lighting systems, and chassis gateway applications requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-aligned qualification readiness.

Supply support for MB89635P-GT-XXX-SH 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 Microelectronics Europe GmbH is a semiconductor supplier focused on automotive and industrial markets, delivering MCUs, ASICs, RF devices, and display controllers from design centers in Langen, München, Levallois, and Maidenhead.

The MB89635P-GT-XXX-SH belongs to Fujitsu's F2MC-8L 8-bit microcontroller family, engineered specifically for cost-sensitive, EMI-critical automotive body electronics where interrupt latency, power efficiency, and LIN integration are primary design constraints.

FAQ

What is the maximum operating frequency of the MB89635P-GT-XXX-SH?

The MB89635P-GT-XXX-SH operates with a main crystal oscillator up to 10 MHz, yielding CPU cycle times as low as 0.4 μs in highest GEAR mode. Its sub-clock input supports 32.768 kHz for RTC and wake-up timing independent of main clock stability.

Does MB89635P-GT-XXX-SH include on-chip Flash or ROM?

The MB89635P-GT-XXX-SH integrates mask-programmed ROM-not Flash-for program storage. Fujitsu documentation confirms it is a ROM-based variant within the F2MC-8L family, intended for high-volume, fixed-function automotive applications where field reprogrammability is not required.

Is MB89635P-GT-XXX-SH AEC-Q100 qualified?

While Fujitsu states future automotive MCUs will be fully AEC-Q100 compliant, the MB89635P-GT-XXX-SH datasheet does not list formal AEC-Q100 certification. It is designed to automotive quality standards (ISO/TS 16949 manufacturing) and includes features like clock modulation and programmable I/O levels for automotive EMI and ground-noise resilience.

Can MB89635P-GT-XXX-SH operate from a 3.3 V supply?

Yes, the MB89635P-GT-XXX-SH supports 2.7–5.5 V supply range. At 3.3 V, all I/O ports, LIN interface, and internal peripherals function correctly, and the GEAR power modes remain fully operational-enabling direct integration with 3.3 V automotive domain controllers without level-shifting.