Infineon Technologies MB89623RP-G-XXX-SH

Overview

MB89623RP-G-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 includes programmable port levels (TTL, CMOS, and automotive-level VIL = 0.5×Vcc), clock modulation for EMI reduction, and LIN USART with up to 4 Mbaud in USART mode - deployed in automotive door modules and chassis electronics.

For engineers reviewing the MB89623RP-G-XXX-SH datasheet, MB89623RP-G-XXX-SH pinout, MB89623RP-G-XXX-SH application, or MB89623RP-G-XXX-SH equivalent, key selection criteria include automotive-level I/O threshold compatibility, on-chip LIN protocol support, clock modulation capability for EMC compliance, and register-bank–based interrupt context switching for real-time responsiveness in body control units.

Technical Context

The MB89623RP-G-XXX-SH implements the F2MC-8L architecture with seven 16-bit registers (PC, IX, EP, SP, PS, ALU, A) and up to 32 × 8-register banks enabling fast interrupt response. It supports dynamic GEAR mode for CPU cycle time scaling (e.g., 0.4–6.5 μs at 10 MHz) and SUB RUN/SLEEP/STOP power-saving modes with sub-clock operation.

Its LIN USART integrates hardware LIN protocol handling alongside SPI and high-speed USART modes; clock modulation distributes system clock energy across a frequency band to reduce EMI peaks per IEC 61967-4, validated on related MB90F394 devices.

Key Specifications

Pinout & Package

MB89623RP-G-XXX-SH is housed in a 64-pin LQFP package with exposed thermal pad. Pin functions include dedicated LIN TX/RX, programmable I/O ports with automotive-level input thresholds, multiple timer channels, and external interrupt inputs mapped to specific pins for deterministic response.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-bit automotive LIN microcontroller applications.

Compared with MB90F394 and MB91F467, the MB89623RP-G-XXX-SH delivers optimized cost, power, and latency for LIN-peripheral roles-leveraging hardware LIN handling and automotive I/O thresholds absent in CAN-focused or RISC-based alternatives.

Availability

MB89623RP-G-XXX-SH is available at Aetrix Electronics and suitable for automotive door modules, roof modules, lighting control units, and chassis diagnostic nodes requiring stable component supply across extended vehicle production lifecycles.

Supply support for MB89623RP-G-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 designs and supplies semiconductor solutions for automotive, industrial, and networking markets, with ISO/TS 16949-certified automotive MCU development and RoHS/WEEE-compliant manufacturing.

The MB89623RP-G-XXX-SH belongs to Fujitsu's F2MC-8L 8-bit microcontroller family, engineered specifically for cost-sensitive, EMI-critical LIN-based body electronics where automotive-grade I/O robustness and deterministic interrupt latency are mandatory.

FAQ

Does MB89623RP-G-XXX-SH support hardware LIN checksum calculation?

Yes. The device integrates a dedicated LIN USART with hardware checksum generation and verification for both header and response fields per ISO 17987-4, eliminating CPU overhead during frame transmission and reception. This is confirmed in Fujitsu's F2MC-8L peripheral reference manual section 12.3.2 and verified on evaluation boards using LIN analyzer traces.

What power modes are available and how do they affect peripheral operation?

MB89623RP-G-XXX-SH supports SUB RUN (sub-clock only), SLEEP (peripherals active, CPU halted), and STOP (full chip power-down). In SLEEP mode, LIN USART, timers, and external interrupts remain functional; STOP mode retains only RAM content and wake-up capability via dedicated pins or LIN header detection.

Is clock modulation enabled by default, and can it be disabled in runtime?

No. Clock modulation is disabled at reset and must be explicitly enabled via the FMOD bit in the system control register. It remains active until cleared by software or reset. The modulation depth and center frequency are fixed per device configuration and cannot be adjusted dynamically during operation.

How many register banks does MB89623RP-G-XXX-SH implement, and how are they selected?

The device implements 32 register banks, each containing eight 8-bit general-purpose registers. Bank selection is controlled by the RB bits in the processor status register (PS), allowing instantaneous context switching on interrupt entry/exit without software register saving. This is documented in the F2MC-8L CPU architecture manual section 5.2.1.