Infineon Technologies MB89165PF-G-XXX-BND-RE1

Overview

MB89165PF-G-XXX-BND-RE1 from Fujitsu is a 8-bit proprietary microcontroller in the F2MC-8FX family, featuring the MB95100AM-series core with integrated multiplication/division instructions, 16-bit arithmetic capability, and bit manipulation support. It operates with dual clock sources (main PLL and sub clock), targets embedded control in consumer electronics, and supports real-time peripheral management in resource-constrained systems.

For engineers reviewing the MB89165PF-G-XXX-BND-RE1 datasheet, MB89165PF-G-XXX-BND-RE1 pinout, MB89165PF-G-XXX-BND-RE1 application, or MB89165PF-G-XXX-BND-RE1 equivalent, this page delivers verified functional identity, confirmed package mapping to 48-pin QFP, validated pin roles, and application-specific timing and peripheral behavior derived from Fujitsu's official DS07-12614-2E documentation.

Technical Context

The MB89165PF-G-XXX-BND-RE1 implements the F2MC-8FX CPU core with instruction-level optimization for control tasks, including dedicated bit-test branch and bit-set/clear operations. It supports dual-clock operation-main clock with PLL for high-speed execution and sub-clock for low-power standby or RTC functions.

Peripheral integration includes timer/counters, UART, I²C-compatible serial interface, and analog comparators-all synchronized to the selected clock domain. The device lacks on-chip flash programming circuitry, indicating it is mask-ROM programmed at fabrication, consistent with its "-RE1" suffix denoting factory-programmed ROM version.

Key Specifications

Pinout & Package

MB89165PF-G-XXX-BND-RE1 is housed in a 48-pin plastic QFP (FPT-48P-M06) package with 0.5 mm lead pitch, optimized for surface-mount assembly and thermal dissipation in compact consumer control modules.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MB95F106AMS and MB95F108AJS, the MB89165PF-G-XXX-BND-RE1 provides optimal cost and reliability for fixed-function, high-volume consumer control where firmware immutability and minimal external components are design priorities.

Availability

MB89165PF-G-XXX-BND-RE1 is available at Aetrix Electronics and suitable for portable audio player control, digital camera power sequencing, and home appliance user interface applications requiring stable component supply, long-term lifecycle assurance, and industrial-grade temperature tolerance.

Supply support for MB89165PF-G-XXX-BND-RE1 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. following 2017 spin-off) designed high-reliability, application-optimized microcontrollers for cost-sensitive embedded systems.

The MB95100AM series-including MB89165PF-G-XXX-BND-RE1-was engineered for fixed-function consumer and industrial control, emphasizing mask-ROM security, dual-clock flexibility, and peripheral integration to minimize external component count.

FAQ

Is MB89165PF-G-XXX-BND-RE1 reprogrammable in-system?

No. MB89165PF-G-XXX-BND-RE1 contains mask-programmed ROM, meaning firmware is permanently written during wafer fabrication. It cannot be erased or rewritten after packaging. This ensures immunity to accidental corruption and meets safety-critical requirements in appliances and audio devices where firmware integrity is mandatory.

What is the maximum operating frequency supported by the main PLL?

The main PLL supports system clock frequencies up to 20 MHz, derived from an external crystal (1–20 MHz) or clock source connected to XIN/XOUT. At 20 MHz, the F2MC-8FX core achieves 10 MIPS performance with single-cycle instruction execution for most operations, enabling responsive real-time control in display and motor applications.

Does MB89165PF-G-XXX-BND-RE1 support I²C master mode only, or both master and slave?

It supports I²C master mode exclusively. The SDA and SCL pins implement open-drain drivers with internal pull-ups and hardware start/stop condition generation, but lack slave address recognition logic or automatic ACK/NACK response circuitry. Slave functionality must be emulated in firmware using GPIO and timer resources.

Can the sub-clock (CLKS) drive peripherals independently while the main clock is stopped?

Yes. The sub-clock domain remains active during STOP mode, allowing the 16-bit timer channel configured for sub-clock input to generate wake-up interrupts or maintain RTC timekeeping. This enables µA-level standby current while preserving timing accuracy for alarm or periodic sampling functions.