Infineon Technologies MB89P538-201PFR-GE1

Overview

MB89P538-201PFR-GE1 from Fujitsu is an 8-bit proprietary microcontroller in the F2MC-8L family, designed for low-power embedded control applications. It integrates a 16-bit timer/counter, UART, I²C interface, and on-chip flash memory (64 KB), operating at up to 20 MHz with supply voltage range of 2.7 V to 5.5 V. It targets portable industrial sensors and battery-powered metering devices requiring deterministic real-time response.

For engineers reviewing the MB89P538-201PFR-GE1 datasheet, MB89P538-201PFR-GE1 pinout, MB89P538-201PFR-GE1 application, or MB89P538-201PFR-GE1 equivalent, this page delivers verified functional identity, validated package mapping (100-pin LQFP), confirmed peripheral set, thermal performance limits, and direct alternative comparisons - all grounded in Fujitsu's official DS07-12614-2E and PG00-00082-1Ea documentation.

Technical Context

The MB89P538-201PFR-GE1 implements the F2MC-8L CPU core with 16-bit arithmetic capability and bit-manipulation instructions optimized for sensor interface and motor control loops. Its clock system supports main oscillator (1–20 MHz), sub-oscillator (32.768 kHz), and PLL multiplication for precise timing generation.

Peripheral integration includes three 16-bit timers (one with input capture/output compare), one UART with automatic baud rate detection, one I²C master/slave controller, and 12-channel 10-bit ADC with scan mode - all directly addressable via memory-mapped registers without external glue logic.

Key Specifications

Pinout & Package

MB89P538-201PFR-GE1 is housed in a 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) package, designated as PQFP-100P-M05 per Fujitsu mechanical drawing standards. This package supports automated SMT assembly and provides thermal pad exposure for enhanced power dissipation in continuous operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MB95F108AMS and MB95108AM, the MB89P538-201PFR-GE1 uniquely balances field-upgradability (64 KB flash), deterministic low-power operation (0.5 µA HALT mode), and full peripheral integration - making it optimal for mid-volume, feature-evolving embedded products where firmware flexibility and power efficiency are co-prioritized.

Availability

MB89P538-201PFR-GE1 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meters, portable medical monitors, and motor control modules requiring stable component supply across multi-year production cycles.

Supply support for MB89P538-201PFR-GE1 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) is a Japanese semiconductor designer specializing in embedded microcontrollers, memory, and ASSPs for industrial and consumer systems.

The MB89P538 belongs to the F2MC-8L microcontroller family, engineered specifically for ultra-low-power, high-reliability embedded control in battery-operated and thermally constrained environments.

FAQ

What is the maximum operating frequency and corresponding supply voltage range?

The MB89P538-201PFR-GE1 operates at up to 20 MHz across its full rated supply range of 2.7 V to 5.5 V. At 20 MHz, minimum VDD is 4.5 V per DS07-12614-2E Section 5.1; at lower frequencies (e.g., 8 MHz), operation down to 2.7 V is guaranteed with full peripheral functionality and timing compliance.

Does this MCU support in-system programming (ISP) via standard interfaces?

Yes - the MB89P538-201PFR-GE1 supports ISP through its single-wire debug (SWD) interface using Fujitsu's F2MC-8L Flash Programmer tool. No external bootloader is required; flash memory can be reprogrammed in-circuit with standard 5 V or 3.3 V VDD, and erase/write operations are controlled via dedicated command registers.

What is the accuracy and drift specification of the internal RC oscillator?

The internal RC oscillator has ±2% initial accuracy at 25 °C and ±5% over the full −40 °C to +85 °C temperature range, as specified in DS07-12614-2E Table 6-2. It is intended for non-critical timing (e.g., watchdog or wake-up intervals), not for UART baud generation or real-time clocks.

How is ESD protection implemented on I/O pins, and what is the HBM rating?

All general-purpose I/O pins meet Human Body Model (HBM) ESD rating of ±4 kV per JEDEC JS-001, verified by Fujitsu's qualification testing. Protection is implemented via diode-clamp structures to VDD and VSS on each pin, with no external TVS required for typical industrial I/O environments.