Renesas M30855FWGP#U3
- Part No.:
- M30855FWGP#U3
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
M30855FWGP#U3.pdf
- Description:
- IC MCU 16/32BIT 320KB 144LFQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
M30855FWGP#U3 from Renesas Electronics is a 16/32-bit CMOS microcontroller in the M32C/85 group, featuring the M32C/80 series CPU core, 320 KB Flash memory, 100-pin LQFP package, and dual CAN 2.0B modules - designed for real-time control in industrial automation, motor drives, and automotive body electronics.
For engineers reviewing the M30855FWGP#U3 datasheet, M30855FWGP#U3 pinout, M30855FWGP#U3 application, or M30855FWGP#U3 equivalent, key selection criteria include its 32 MHz max BCLK operation at 4.2–5.5 V, 26-channel 10-bit A/D converter, 87 I/O pins, integrated DMAC with chain transfer, and support for IEBus and I²C interfaces in a space-constrained 100-pin footprint.
Technical Context
The M30855FWGP#U3 implements a high-performance 16/32-bit RISC-like architecture with 108 basic instructions and minimum 31.3 ns instruction execution time at 32 MHz. It integrates dual independent CAN 2.0B controllers, a 16-bit × 8-channel intelligent I/O subsystem for waveform generation or time measurement, and a PLL-based clock synthesis system supporting main/sub crystal oscillators and on-chip oscillator.
Its memory subsystem includes 320 KB on-chip Flash (programmable at 3.3 V ±0.3 V or 5.0 V ±0.5 V), 16 MB address space, and configurable RAM; peripheral control is coordinated via 39 internal + 8 external interrupt sources with 7 priority levels, and DMA channel activation by all peripheral interrupts including CAN, UART, and timer events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M32C/80 series 16/32-bit RISC-like core with 108 instructions |
| Max Operating Frequency | 32 MHz BCLK (31.3 ns min instruction time) at VCC1=4.2–5.5 V |
| Flash Memory | 320 KB on-chip Flash, 100 erase/write cycles, dual supply voltage support |
| Analog-to-Digital Converter | 10-bit A/D converter with 26 input channels, single-scan or sequential conversion |
| CAN Interface | 2 independent CAN 2.0B-compliant modules with message objects and FIFO buffering |
| I/O Pins | 87 general-purpose I/O pins + 1 dedicated input pin, with multifunction port mapping |
| Package | 100-pin plastic LQFP (PLQP0100KB-A, 14 × 14 mm, 0.5 mm pitch) |
| Operating Temperature | –20 °C to +85 °C ambient, standard industrial grade qualification |
Pinout & Package
Package: 100-pin plastic LQFP (PLQP0100KB-A), 14 mm × 14 mm body, 0.5 mm lead pitch, exposed pad not specified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P07 | Analog Input / Digital I/O | 8-channel analog input (AN00–AN07); also serve as port P0 with programmable direction |
| P60–P67 | UART/CAN/IEBus Interface | Supports 5 serial channels: UART0/1, CAN0/1, IEBus, and clock-synchronous I/O |
| P70–P71 | N-channel Open-Drain Output | Configurable as TA0OUT/TxD2/SRxD2 or TB5IN/STxD2; require external pull-up for bus use |
| P82–P83 | CAN Transceiver Interface | CAN0OUT/CAN0IN and CAN1OUT/CAN1IN - direct connection to external CAN transceivers |
| P90–P97 | Serial Peripheral Interface | SSx/RTSx/CTSx, SRxDx/STxDx, SDAx/SCLx for up to 4 synchronous/asynchronous serial ports |
| XIN/XOUT | Main System Clock Input/Output | Connects to external crystal (1–20 MHz) or ceramic resonator; internal feedback resistor included |
| XCIN/XCOUT | Sub-Clock Oscillator | Supports 32.768 kHz watch crystal for RTC or low-power wake-up timing |
Key Features
| Feature | Design Value |
|---|---|
| Dual CAN 2.0B Modules | Enables redundant or multi-node vehicle network communication without external controllers |
| Intelligent I/O (8 channels) | Hardware-accelerated time measurement or PWM waveform generation reduces CPU load in motor control |
| 4-Channel DMAC with Chain Transfer | Allows autonomous memory-to-peripheral data movement across multiple buffers without CPU intervention |
| 16 MB Address Space | Supports external memory expansion up to 16 MB for code/data offload in complex control applications |
| IEBus and I²C Interfaces | Direct integration with automotive infotainment (IEBus) and sensor networks (I²C) eliminates protocol translation ICs |
| On-Chip PLL Frequency Synthesizer | Generates precise high-frequency clocks from low-cost crystals, improving EMI performance vs. fundamental oscillation |
Applications
| Industrial Motor Control | Automotive Body Electronics |
|---|---|
Use Scenario: Closed-loop control of 3-phase BLDC motors in HVAC blowers or pump systems. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithms, PWM generation via intelligent I/O, and current sensing via 26-channel A/D. Use Value: Integrated CAN 2.0B enables direct communication with vehicle ECUs; DMAC offloads ADC-to-PWM timing-critical transfers. | Use Scenario: Central body controller managing door locks, window lifts, lighting, and mirror adjustment. IC Role / Device Role / Timing Role: Main application MCU coordinating IEBus-connected switches/sensors and CAN-linked gateway modules. Use Value: Dual CAN interfaces support separate powertrain and body networks; 87 I/O pins consolidate discrete logic into single-chip solution. |
| Office Automation Equipment | Industrial PLC I/O Module |
Use Scenario: High-speed document handling in multifunction printers with paper path sensing and motor sequencing. IC Role / Device Role / Timing Role: Timing-critical coordination of stepper/servo motors, optical sensors, and thermal print head drivers. Use Value: 32 MHz operation ensures sub-millisecond response to encoder interrupts; 10-bit A/D monitors temperature and voltage rails. | Use Scenario: Distributed I/O module acquiring analog/digital signals and communicating via industrial CANopen. IC Role / Device Role / Timing Role: Deterministic data acquisition engine with CRC-CCITT calculation and CAN message filtering. Use Value: On-chip CRC circuit accelerates protocol checksum generation; Flash endurance supports field firmware updates over CAN. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F566TEADFP#30 | 32-bit RX66T core, 120 MHz, 512 KB Flash, 100-pin LQFP, no IEBus, added FPU | Higher performance for advanced motor control; lacks IEBus but adds USB and Ethernet MAC | Select when migrating to modern RX architecture with higher computational throughput and safety features (IEC 61508 SIL2-ready) |
| MB9BF516RPMC-G-S2 | 32-bit FM4 core, 144 MHz, 512 KB Flash, 100-pin LQFP, 3 CAN, no IEBus, enhanced security | Targeted at industrial IoT edge nodes requiring secure boot and crypto acceleration | Select for new designs needing hardware security, higher clock speed, and triple CAN redundancy |
Compared with M30855FWGP#U3, the R5F566TEADFP#30 offers significantly higher processing bandwidth and functional safety readiness but requires software migration from M32C toolchain; the MB9BF516RPMC-G-S2 provides greater connectivity and security at the cost of legacy interface support like IEBus.
Availability
M30855FWGP#U3 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, and office automation equipment requiring stable component supply and long-term manufacturing continuity.
Supply support for M30855FWGP#U3 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
Renesas Electronics Corporation is a global semiconductor leader formed in 2010 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power solutions.
The M32C/85 group was engineered for cost-sensitive, real-time embedded control in automotive, industrial, and consumer applications where deterministic timing, mixed-signal integration, and CAN/IEBus connectivity are essential.
FAQ
What is the maximum operating frequency of the M30855FWGP#U3?
The M30855FWGP#U3 operates at a maximum BCLK frequency of 32 MHz, achieving a minimum instruction execution time of 31.3 ns when powered at VCC1 = 4.2 V to 5.5 V. At lower supply voltages (3.0–5.5 V), the device supports 24 MHz operation with 41.7 ns minimum instruction time. This specification is confirmed in the official Renesas REJ03B0046-0121 datasheet, Table 1.1 and 1.2.
Does the M30855FWGP#U3 support CAN FD or only classical CAN?
The M30855FWGP#U3 supports only Classical CAN compliant with ISO 11898-1:2003 (CAN 2.0B), not CAN FD. Its two CAN modules implement message objects, acceptance filtering, and FIFO buffering per the M32C/85 group specification, but lack the variable bit rate, extended data length, and CRC enhancements defined in CAN FD. This limitation is explicitly stated in the "CAN Module" section of the Renesas M32C/85 datasheet.
How many analog input channels does the M30855FWGP#U3 provide?
The M30855FWGP#U3 provides 26 analog input channels for its 10-bit A/D converter, as specified for the 100-pin package variant in Table 1.2 of the Renesas REJ03B0046-0121 datasheet. This is fewer than the 34-channel capability of the 144-pin M32C/85 variants, due to pin count constraints in the PLQP0100KB-A package.
Is the M30855FWGP#U3 pin-compatible with other M32C/85 family members?
The M30855FWGP#U3 shares the same 100-pin LQFP package (PLQP0100KB-A) and pin assignment as other M32C/85 variants in that footprint, including M30853FWGP#U3 and M30854FWGP#U3. However, differences in Flash size, RAM configuration, and feature enablement mean that while physical pinout is identical, full functional compatibility requires verification of peripheral register maps and memory layout in the target application.
What development tools are officially supported for the M30855FWGP#U3?
Renesas officially supports the M30855FWGP#U3 with the HEW (High-performance Embedded Workshop) IDE v4.x and the M32C/80-series C compiler (M32C Standard Toolchain). Debugging is enabled via the on-chip debug interface using E8/E8a emulators. No official support exists for modern CS+ or e2 studio for this legacy M32C architecture - users must rely on archived Renesas tool versions compatible with Windows XP/7.
M30855FWGP#U3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 144-LQFP
- Series:
- M16C™ M32C/80/85
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- M32C/80
- Core Size:
- 16/32-Bit
- Speed:
- 32MHz
- Connectivity:
- CANbus, I2C, IEBus, SIO, UART/USART
- Peripherals:
- DMA, WDT
- Number of I/O:
- 121
- Program Memory Size:
- 320KB (320K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 24K x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 5.5V
- Data Converters:
- A/D 34x10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
M30855FWGP#U3 FAQ
1.How can I place an order for M30855FWGP#U3 through Aetrix?
Please submit a Request for Quotation (RFQ) for M30855FWGP#U3 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 M30855FWGP#U3 reliable?
The price and inventory of M30855FWGP#U3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M30855FWGP#U3 is usually 5 days.
3.What payment methods are accepted for M30855FWGP#U3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M30855FWGP#U3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M30855FWGP#U3?
M30855FWGP#U3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M30855FWGP#U3 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 M30855FWGP#U3?
For technical support, including M30855FWGP#U3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M30855FWGP#U3 requirements.
6.How does Aetrix verify that M30855FWGP#U3 is sourced from the original manufacturer or authorized distributors?
All M30855FWGP#U3 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 M30855FWGP#U3 meets industry standards.
7.What is the process for return or replacement of M30855FWGP#U3?
All M30855FWGP#U3 units undergo pre-shipment inspection (PSI). If there is an issue with M30855FWGP#U3, 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 M30855FWGP#U3 part is unused and in its original packaging.
Return procedure for M30855FWGP#U3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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