Infineon Technologies MB91305PMC-G-BNDK5E1

Overview

MB91305PMC-G-BNDK5E1 from Fujitsu Microelectronics is a 32-bit FR60 RISC microcontroller with 64 MHz CPU operation (48 MHz crystal × 4/3 or 16 MHz × 4), 64 KB on-chip RAM, 10-bit 10-channel ADC, USB 2.0 full-speed interface, and 98 I/O ports in LQFP-176 package. It targets high-throughput embedded control in DVD players, printers, TVs, and plasma display panels.

For engineers reviewing the MB91305PMC-G-BNDK5E1 datasheet, MB91305PMC-G-BNDK5E1 pinout, MB91305PMC-G-BNDK5E1 application, or MB91305PMC-G-BNDK5E1 equivalent, key selection criteria include external bus timing (32 MHz max), dual-voltage supply (3.3 V ±0.3 V / 1.8 V ±0.15 V), FR-family instruction compatibility, and integrated USB/UART/I²C peripherals for multimedia system control.

Technical Context

The MB91305PMC-G-BNDK5E1 implements the FR60 CPU core - a 32-bit RISC architecture with 5-stage pipeline, 16-bit fixed-length instructions, and Harvard memory organization enabling simultaneous program/data access. It supports both big- and little-endian byte ordering, with CS0 area restricted to big-endian mode.

Its external bus interface delivers up to 32 MHz operation with programmable wait cycles per chip-select area (CS0–CS7), 24-bit address output, 8/16/32-bit data width, and support for SDRAM, burst-mode Flash, and page-mode ROM. CS2 is reserved for USB function; CS3 is unused.

Key Specifications

Pinout & Package

LQFP-176 package, 0.5 mm pitch, 24 mm × 24 mm footprint, CMOS 0.18 µm process.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 32-bit embedded microcontroller applications.

Compared with MB91F305PMC-G-BNDK5E1, this part offers identical functionality with earlier silicon revision; compared with R5F563TEBDFP, it avoids ISA migration cost but lacks FPU and advanced motor control peripherals - making it optimal for cost-sensitive, USB-connected consumer control where FR toolchain maturity matters.

Availability

MB91305PMC-G-BNDK5E1 is available at Aetrix Electronics and suitable for DVD player manufacturing, printer engine control, flat-panel TV UI management, and plasma display panel timing systems requiring stable component supply over extended production lifecycles.

Supply support for MB91305PMC-G-BNDK5E1 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 Limited was a Japanese semiconductor company specializing in high-performance microcontrollers and ASICs for consumer and industrial applications before its semiconductor business was acquired by Spansion (now Cypress Semiconductor, part of Infineon).

The MB91305 series belongs to Fujitsu's FR60 microcontroller product line, designed specifically for high-speed embedded control in multimedia consumer electronics requiring integrated USB, rich I/O, and deterministic real-time response.

FAQ

What is the default reset configuration for MB91305PMC-G-BNDK5E1?

The INIT pin serves as the primary hardware reset input, active-low, and must be held low for ≥100 ns after power stabilization. Internal power-on reset circuitry asserts reset until VDDI and VDDE reach valid thresholds. Watchdog timer and software-initiated resets also trigger full system initialization, preserving register states per datasheet DS07-16703-2E Section 18.

Does MB91305PMC-G-BNDK5E1 support external SDRAM directly?

Yes - the external bus interface supports SDRAM with programmable CAS latency (1–8), 2/4 bank configuration, and address/data multiplexing. Required control signals (RAS, CAS, WE, DQM) are provided on dedicated pins (e.g., P45/SRAS, P46/SCAS), and MCLK/MCLKE outputs drive SDRAM clock and enable timing.

How is USB functionality enabled or disabled on this microcontroller?

USB is controlled by the MOD pins (MD0–MD3) at reset: MOD = 0000B enables USB function with 48 MHz crystal × 4/3; MOD = 0010B disables USB and runs at 16 MHz × 4. Pin states are latched at power-on reset and cannot be changed dynamically during operation.

Can the instruction cache be used as general-purpose RAM?

Yes - the 4 KB instruction cache supports "instruction RAM" mode: unused cache blocks can be repurposed as executable RAM. This is configured via cache control registers and allows dynamic code loading into cache-resident memory while retaining cache coherency for active routines.