Renesas M30855FJGP#U3

Overview

M30855FJGP#U3 from Renesas Electronics is a 16/32-bit single-chip microcontroller based on the M32C/80 CPU core, housed in a 100-pin plastic molded LQFP (PLQP0100KB-A) package. It features 512 KB Flash memory, 26-channel 10-bit A/D converter, dual CAN 2.0B modules, and operates at up to 32 MHz with 31.3 ns minimum instruction execution time. It targets industrial motor control and automotive body electronics requiring real-time I/O and robust communication.

For engineers reviewing the M30855FJGP#U3 datasheet, M30855FJGP#U3 pinout, M30855FJGP#U3 application, or M30855FJGP#U3 equivalent, key selection criteria include its 100-pin LQFP footprint, dual CAN interface support, 26-channel analog input capability, and compatibility with -40°C to +85°C ambient operation in T-version variants.

Technical Context

The M30855FJGP#U3 implements the M32C/80 series CPU core with 108 basic instructions and supports single-chip, memory expansion, and microprocessor operating modes. Its 16-Mbyte address space enables scalable system design while integrated peripherals-including five serial I/O channels (IEBus, I²C, UART, clock-synchronous/asynchronous), DMAC II with chain transfer, and CRC-CCITT calculation-support complex embedded control tasks.

It integrates two independent CAN 2.0B modules for fault-tolerant vehicle network communication, a 15-bit watchdog timer with prescaler, and four clock generation circuits (main/sub oscillators, on-chip oscillator, PLL synthesizer). The device uses separate VCC1 (4.2–5.5 V) and VCC2 (3.0–VCC1) supply domains, with voltage detection available as an option.

Key Specifications

Pinout & Package

Package: 100-pin plastic LQFP (PLQP0100KB-A), 14 mm × 14 mm body, 0.5 mm lead pitch, exposed pad not specified.

Key Features

Applications

Equivalent & Alternatives

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

Compared with M30855FJGP#U3, R5F566TEADFP#30 offers CAN FD and faster execution but drops IEBus and dual CAN 2.0B; MB9BF516RPMC-G-SNE2 delivers higher clock rate and ADC precision but omits intelligent I/O and IEBus-making M30855FJGP#U3 uniquely suited for cost-sensitive, IEBus-dependent automotive body ECUs.

Availability

M30855FJGP#U3 is available at Aetrix Electronics and suitable for automotive body control units, industrial motor drives, office equipment controllers, and communications infrastructure gateways requiring stable component supply across extended product lifecycles.

Supply support for M30855FJGP#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, power, and SoC solutions.

The M32C/85 Group was designed for high-reliability embedded control in automotive, industrial, and office automation systems-emphasizing real-time responsiveness, integrated communication (CAN, IEBus, I²C), and mixed-signal capability in compact packages.

FAQ

What is the maximum operating frequency of the M30855FJGP#U3?

The M30855FJGP#U3 supports a maximum BCLK frequency of 32 MHz, achieving a minimum instruction execution time of 31.3 ns when VCC1 is 4.2 V to 5.5 V. At lower supply voltages (e.g., VCC1 = 3.0 V), the maximum clock drops to 24 MHz with 41.7 ns minimum execution time. These values are confirmed in the official Renesas REJ03B0046-0121 datasheet for the M32C/85 Group.

Does the M30855FJGP#U3 support CAN FD or only classical CAN 2.0B?

The M30855FJGP#U3 supports only CAN 2.0B-not CAN FD-as explicitly stated in the "CAN Module" section of the M32C/85 Group datasheet (REJ03B0046-0121, p.2). It integrates two fully independent CAN 2.0B-compliant controllers with message object RAM, error counters, and bus-off recovery, but lacks the bit-rate switching and extended data length features of CAN FD.

What package type and pin count does the M30855FJGP#U3 use?

The M30855FJGP#U3 uses a 100-pin plastic LQFP package designated PLQP0100KB-A (14 mm × 14 mm, 0.5 mm pitch), as defined in the M32C/85 Group product numbering system (Figure 1.2, p.6) and confirmed in Table 1.3 and Figure 1.4 of the Renesas datasheet REJ03B0046-0121.

How many analog input channels does the M30855FJGP#U3 provide?

The M30855FJGP#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 (p.3) of the Renesas M32C/85 Group datasheet REJ03B0046-0121. This is fewer than the 34-channel capability of the 144-pin version but sufficient for mid-tier motor control and sensor aggregation applications.

Is the M30855FJGP#U3 qualified for automotive underhood applications?

The M30855FJGP#U3 is rated for –20°C to +85°C operation per standard specification, placing it in Renesas' "Standard" quality grade. For underhood use requiring –40°C to +125°C, the T-version (e.g., M30855FJGPT#U3) is required-but even that is limited to –40°C to +85°C per Table 1.2. True underhood qualification would require additional thermal derating analysis and is not guaranteed by default rating.