Infineon Technologies MB90F804-201PFR-GE1

Overview

MB90F804-201PFR-GE1 from Fujitsu is a 16-bit F2MC-16LX microcontroller with integrated 48-segment × 4-common LCD controller, 256 KB Flash, 28 KB RAM, and on-chip PLL supporting 25 MHz operation (4× multiplier at 6.25 MHz crystal). It features 68 I/O ports, 12-channel 8/10-bit ADC, dual UART, I²C, and multiple 16-bit timers - deployed in industrial HMI panels requiring embedded display control and real-time sensor interfacing.

For engineers reviewing the MB90F804-201PFR-GE1 datasheet, MB90F804-201PFR-GE1 pinout, MB90F804-201PFR-GE1 application, or MB90F804-201PFR-GE1 equivalent, key selection criteria include subclock support (201 variant), QFP-100 package compatibility, 2.7–3.6 V supply range, 40 ns minimum instruction cycle, and integrated LCD segment drivers eliminating external bias circuitry.

Technical Context

This MCU implements the F2MC-16LX architecture with 24-bit internal addressing, 23 addressing modes, and a 32-bit accumulator for enhanced arithmetic precision. Its instruction set supports C-language compilation and multitasking via programmable interrupt priority (32 sources) and system stack pointer.

The on-chip PLL enables flexible clock generation: ×1/×2/×3/×4 multiplication or ÷2 division of external crystal input (6.25–25 MHz), yielding up to 25 MHz CPU clock at 3.3 V. Low-power modes include Sleep, Watch, Stop, and CPU blocking - all coordinated with the 1-channel time-base timer and independent watchdog.

Key Specifications

Pinout & Package

MB90F804-201PFR-GE1 uses a 100-pin QFP package (FPT-100P-M06, 0.65 mm lead pitch) with exposed thermal pad per Fujitsu DS07-13733-6E.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit microcontroller applications.

Compared with MB90F803-201PFR-GE1 and MB90F809-201PFR-GE1, the MB90F804-201PFR-GE1 uniquely balances large Flash capacity (256 KB) with full dual-operation support and maximum RAM (28 KB), making it optimal for complex HMI firmware with graphics assets and real-time task scheduling.

Availability

MB90F804-201PFR-GE1 is available at Aetrix Electronics and suitable for industrial HMI panels, office automation controllers, process monitoring terminals, and embedded test equipment requiring stable component supply and long-term lifecycle support.

Supply support for MB90F804-201PFR-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 Microelectronics was a Japan-based semiconductor designer specializing in microcontrollers, FRAM, and display drivers before its MCU business was acquired by Cypress Semiconductor in 2013 and later integrated into Infineon Technologies.

The MB90800 Series targets industrial and office automation applications demanding integrated LCD control, deterministic real-time response, and low-power operation - with the F804 variant optimized for feature-rich HMI implementations.

FAQ

Does MB90F804-201PFR-GE1 support in-circuit debugging?

Yes, it supports on-chip debugging via the dedicated debug interface using the Fujitsu E8a emulator and associated IDE tools. The MCU includes hardware breakpoints, watchpoints, and real-time trace capabilities through the JTAG-compatible debug port, enabling full source-level debugging without requiring external probes or special bootloaders.

What is the maximum operating temperature range for this part?

The MB90F804-201PFR-GE1 is rated for industrial temperature operation from −40 °C to +85 °C, validated per Fujitsu's qualification testing under JEDEC JESD22-A104. This range applies to the full specified voltage (2.7–3.6 V) and clock (up to 25 MHz) envelope without derating.

Can the LCD controller drive static or multiplexed displays?

It drives only multiplexed LCDs - specifically 48-segment × 4-common (1:4 duty) panels. The controller generates proper bias waveforms internally and does not support static (1:1) or higher-multiplex (e.g., 1:8) configurations. Segment and common outputs are CMOS-level and require no external resistors or capacitors for standard 3V LCD glass.

Is the subclock oscillator (X0A/X1A) mandatory for Watch mode operation?

Yes - Watch mode relies exclusively on the 32 kHz subclock oscillator (X0A/X1A) to maintain timekeeping while disabling the main oscillator and CPU. The -201 suffix explicitly denotes inclusion of this subclock circuit; the -101 variant lacks these pins and cannot enter Watch mode, limiting low-power functionality to Sleep or Stop modes only.