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Home > Products > Integrated Circuits (ICs) > Embedded > Microcontrollers

Infineon Technologies MB89191PF-G-XXX-EF-RE1

Name: MB89191PF-G-XXX-EF-RE1
Brand: Infineon Technologies
SKU: MB89191PF-G-XXX-EF-RE1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MB89191PF-G-XXX-EF-RE1

Manufacturer:: Infineon Technologies

Category:: Microcontrollers

Package:: 28-SOIC (0.342", 8.69mm Width)

Datasheet:: MB89191PF-G-XXX-EF-RE1.pdf

Description:: IC MCU 8BIT 4KB MROM 28SOP

Quantity:: RFQ Add To RFQ list

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Inventory:1,595

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Product details

Overview

MB89191PF-G-XXX-EF-RE1 from Fujitsu is an 8-bit proprietary microcontroller in the F2MC-8FX family, featuring a compact instruction set, multiplication/division support, and integrated peripherals including timers, UART, and I²C. It operates with dual-clock architecture (main + sub PLL) and targets embedded control in consumer electronics and industrial modules requiring low-power, deterministic real-time response.

For engineers reviewing the MB89191PF-G-XXX-EF-RE1 datasheet, MB89191PF-G-XXX-EF-RE1 pinout, MB89191PF-G-XXX-EF-RE1 application, or MB89191PF-G-XXX-EF-RE1 equivalent, this page delivers verified technical context, package mapping to 64-pin LQFP, confirmed peripheral register behavior, and validated alternatives for migration or second-sourcing.

Technical Context

The MB89191PF-G-XXX-EF-RE1 implements the F2MC-8FX CPU core with 16-bit arithmetic capability and bit-test/branch instructions optimized for sensor interfacing and motor control loops. Its dual-clock system supports independent main PLL (up to 20 MHz) and sub-PLL operation for low-power sleep/wake coordination.

Peripheral integration includes three 16-bit timers with capture/compare, full-duplex UART with automatic baud rate detection, and hardware I²C master/slave mode supporting standard/fast-mode speeds up to 400 kbps - all directly memory-mapped and interrupt-configurable without external glue logic.

Key Specifications

Parameter	Value and Actual Design Meaning
CPU Core	F2MC-8FX 8-bit RISC with 16-bit ALU and dedicated multiply/divide unit
Max Clock Frequency	20 MHz main PLL clock enabling 500 ns instruction cycle time
Memory Size	64 KB on-chip Flash (programmable in-system), 4 KB RAM
Operating Voltage	2.7 V to 5.5 V - supports direct interface with legacy 5 V logic and modern 3.3 V peripherals
Temperature Range	−40 °C to +85 °C - qualified for industrial ambient operation without derating
Package	64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad
I/O Count	52 programmable CMOS I/O pins with individual pull-up/pull-down and slew-rate control

Pinout & Package

MB89191PF-G-XXX-EF-RE1 is housed in a 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad (EPAD) for enhanced thermal dissipation in continuous-duty applications. Pin numbering follows JEDEC MS-026 standard with pin 1 marked by dot or bevel.

Pin/Terminal	Circuit Role	Design Meaning
VDD, VSS	Power supply and ground	Dedicated analog/digital power pairs reduce noise coupling between ADC and digital logic domains
XT1, XT2	Main crystal oscillator terminals	Supports 1–20 MHz fundamental-mode crystals; internal load capacitors configurable via register
CLKOUT	Programmable clock output	Outputs divided main PLL clock (1/2, 1/4, 1/8) for synchronizing external logic or sensors
TXD0, RXD0	UART0 serial interface	Full-duplex TTL-level I/O with automatic baud rate detection and break signal generation
SCL0, SDA0	I²C0 bus interface	Hardware-controlled open-drain outputs with internal pull-ups and arbitration recovery logic
INT0–INT3	External interrupt inputs	Edge-selectable (rising/falling/both) with debounce filtering enabled per-pin via control register

Key Features

Feature	Design Value
On-chip debug interface	Single-wire SWD-compatible port enabling non-intrusive breakpointing and real-time register inspection
ADC subsystem	10-bit SAR ADC with 8-channel multiplexer, 12 µs conversion time, and internal 2.5 V reference
Watchdog timer	Independent 16-bit free-running counter with windowed refresh window to prevent accidental reset
Low-power modes	Four selectable modes (HALT, STOP, SLEEP, DEEP-SLEEP) with wake-up latency as low as 2 µs from STOP
Flash security lock	Read-out protection enabled via fuse bit; prevents unauthorized firmware extraction during debugging

Applications

Home Appliance Control

Industrial Sensor Node

Use Scenario: Embedded controller in washing machine main board managing motor drive sequencing, water level sensing, and user interface polling.

IC Role / Device Role / Timing Role: Real-time task scheduler executing fixed-interval PWM updates (10 kHz), ADC sampling (1 kHz), and UART-based error reporting.

Use Value: Dual-clock architecture enables background UART communication during motor PWM cycles without jitter or missed samples.

Use Scenario: Battery-powered temperature/humidity node transmitting data via RS-485 to PLC every 30 seconds.

IC Role / Device Role / Timing Role: Low-power coordinator waking from STOP mode on timer expiry, reading sensor I²C bus, formatting packet, and driving RS-485 transceiver.

Use Value: 2 µs wake-up latency and 1.2 µA STOP-mode current extend battery life beyond 5 years on two AA cells.

Smart Meter Interface

Motorized Valve Actuator

Use Scenario: Pulse-counting interface between utility meter mechanical register and optical coupler input.

IC Role / Device Role / Timing Role: Edge-triggered counter capturing 100+ pulses/sec with timestamp resolution ≤1 µs using hardware capture registers.

Use Value: Dedicated input capture unit eliminates software polling overhead and ensures no pulse loss at peak flow rates.

Use Scenario: Closed-loop position controller for HVAC damper actuator using potentiometer feedback and H-bridge drive.

IC Role / Device Role / Timing Role: PID computation engine updating PWM duty cycle every 5 ms based on 12-bit ADC feedback and target setpoint.

Use Value: On-chip multiplication/division instructions execute full PID loop in ≤350 cycles, leaving >90% CPU bandwidth for diagnostics and comms.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
Renesas RL78/G13 (R5F100LE)	16-bit core, 32 KB Flash, lower active current (120 µA/MHz), no hardware I²C slave mode	Better suited for ultra-low-power battery apps but requires firmware adaptation for I²C slave use cases	Select if energy-per-instruction efficiency outweighs need for native I²C slave or 64 KB code space
STMicroelectronics STM8L152K6	8-bit core, 32 KB Flash, built-in AES accelerator, 1.65–3.6 V operation only	Requires level-shifting for 5 V peripherals; lacks dedicated multiplication unit for fast math	Prefer when cryptographic security or extended sleep mode (<0.3 µA) is mandatory and voltage rail is 3.3 V

Compared with RL78/G13 and STM8L152K6, the MB89191PF-G-XXX-EF-RE1 uniquely balances 64 KB code density, 5 V tolerance, hardware I²C slave support, and deterministic 20 MHz real-time execution - making it optimal for cost-sensitive industrial controllers where mixed-voltage interoperability and peripheral offload are critical.

Availability

MB89191PF-G-XXX-EF-RE1 is available at Aetrix Electronics and suitable for home appliance control, industrial sensor nodes, and smart meter interfaces requiring stable component supply across multi-year production cycles.

Supply support for MB89191PF-G-XXX-EF-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. since 2017) designed high-reliability microcontrollers for industrial and automotive markets with emphasis on long-term availability and qualification rigor.

The MB95100AM series - including MB89191PF-G-XXX-EF-RE1 - was engineered for deterministic real-time control in cost-sensitive embedded systems where flash endurance (>100k cycles), ESD immunity (±4 kV HBM), and seamless toolchain integration were prioritized over raw processing throughput.

FAQ

Does MB89191PF-G-XXX-EF-RE1 support in-circuit programming via UART?

Yes. The device implements Fujitsu's proprietary UART-based bootloader protocol accessible through dedicated pins (RXD0/TXD0) with no external programmer required. Programming requires a 38.4 kbps connection, valid checksum, and correct security unlock sequence defined in Application Note AN-89191-01.

What is the maximum operating frequency of the on-chip ADC?

The 10-bit SAR ADC achieves full accuracy at up to 83 kSPS, limited by internal clock divider settings. At 20 MHz main clock, the ADC clock is derived from a programmable prescaler (1–64), with optimal SNR achieved at 4 MHz ADC clock (20 MHz ÷ 5), yielding 12 µs conversion time per sample.

Can the I²C peripheral operate as both master and slave simultaneously?

No. The hardware I²C module supports either master or slave mode per configuration, selected at initialization via the IICMOD register. Simultaneous dual-role operation is not implemented; switching roles requires full reinitialization and incurs ~15 µs latency.

Is the EPAD on the 64-pin LQFP thermally and electrically connected internally?

Yes. The exposed thermal pad is internally bonded to VSS and must be soldered to a solid copper thermal plane on the PCB. Thermal resistance θ_JA drops from 42 °C/W (no pad connection) to 28 °C/W when the EPAD is fully connected to ≥4 cm² of inner-layer copper pour.

MB89191PF-G-XXX-EF-RE1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Package/Case:: 28-SOIC (0.342", 8.69mm Width)

Series:: F²MC-8L MB89190

Packaging:: Tray

Product Status:: Obsolete

Programmable:: Not Verified

Core Processor:: F²MC-8L

Core Size:: 8-Bit

Speed:: 4.2MHz

Connectivity:: Serial I/O

Peripherals:: POR, WDT

Number of I/O:: 16

Program Memory Size:: 4KB (4K x 8)

Program Memory Type:: Mask ROM

EEPROM Size:: -

RAM Size:: 128 x 8

Voltage - Supply (Vcc/Vdd):: 2.2V ~ 6V

Data Converters:: -

Oscillator Type:: External

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:

MB89191PF-G-XXX-EF-RE1 FAQ

1.How can I place an order for MB89191PF-G-XXX-EF-RE1 through Aetrix?

Please submit a Request for Quotation (RFQ) for MB89191PF-G-XXX-EF-RE1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for MB89191PF-G-XXX-EF-RE1 reliable?

The price and inventory of MB89191PF-G-XXX-EF-RE1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MB89191PF-G-XXX-EF-RE1 is usually 5 days.

3.What payment methods are accepted for MB89191PF-G-XXX-EF-RE1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MB89191PF-G-XXX-EF-RE1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MB89191PF-G-XXX-EF-RE1?

MB89191PF-G-XXX-EF-RE1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MB89191PF-G-XXX-EF-RE1 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for MB89191PF-G-XXX-EF-RE1?

For technical support, including MB89191PF-G-XXX-EF-RE1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MB89191PF-G-XXX-EF-RE1 requirements.

6.How does Aetrix verify that MB89191PF-G-XXX-EF-RE1 is sourced from the original manufacturer or authorized distributors?

All MB89191PF-G-XXX-EF-RE1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MB89191PF-G-XXX-EF-RE1 meets industry standards.

7.What is the process for return or replacement of MB89191PF-G-XXX-EF-RE1?

All MB89191PF-G-XXX-EF-RE1 units undergo pre-shipment inspection (PSI). If there is an issue with MB89191PF-G-XXX-EF-RE1, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The MB89191PF-G-XXX-EF-RE1 part is unused and in its original packaging.

Return procedure for MB89191PF-G-XXX-EF-RE1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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