Renesas M30855FHGP#U5

Overview

M30855FHGP#U5 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 integrates 384 KB Flash memory, 16 MB address space, dual CAN 2.0B modules, 10-bit A/D converter with 26 channels, and 5-channel serial I/O including I²C, IEBus, and UART - enabling real-time control in automotive body electronics and industrial motor drives.

For engineers reviewing the M30855FHGP#U5 datasheet, M30855FHGP#U5 pinout, M30855FHGP#U5 application, or M30855FHGP#U5 equivalent, key selection criteria include its 32 MHz max BCLK operation at 4.2–5.5 V, −20 to +85°C ambient rating, 100-pin LQFP footprint, and dual-CAN interface for distributed vehicle networks.

Technical Context

The M30855FHGP#U5 implements the M32C/80 series CPU core with 108 basic instructions and minimum instruction execution time of 31.3 ns at 32 MHz. Its architecture supports single-chip, memory expansion, and microprocessor operating modes, with four independent clock generation circuits including main/sub oscillators, on-chip oscillator, and PLL frequency synthesizer.

Peripheral integration includes 4-channel DMAC with immediate/calculation/chain transfer, CRC-CCITT calculation circuit, 16×16-bit X/Y converter, watchdog timer (15-bit), and intelligent I/O supporting time measurement or waveform generation across eight 16-bit channels - all optimized for deterministic real-time response in embedded control systems.

Key Specifications

Pinout & Package

Package: 100-pin plastic molded LQFP (PLQP0100KB-A), 14 mm × 14 mm, 0.5 mm pitch, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F566TEADFP#30, M30855FHGP#U5 delivers dual CAN 2.0B and motor-control timers essential for automotive body ECUs; versus MB9BF506RPMC, it offers proven M32C toolchain compatibility and lower BOM cost where CAN FD is unnecessary.

Availability

M30855FHGP#U5 is available at Aetrix Electronics and suitable for automotive body control modules, industrial motor drive systems, and office equipment main controllers requiring stable component supply across extended product lifecycles.

Supply support for M30855FHGP#U5 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 via merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power solutions.

The M32C/85 Group was designed for high-reliability embedded control in automotive, industrial, and office equipment - emphasizing real-time responsiveness, integrated peripherals, and long-term supply stability.

FAQ

What is the maximum operating frequency of the M30855FHGP#U5 CPU core?

The M30855FHGP#U5 CPU core achieves a minimum instruction execution time of 31.3 ns, corresponding to a maximum bus clock (BCLK) frequency of 32 MHz under VCC1 = 4.2–5.5 V conditions. This timing is confirmed in Table 1.2 of the official Renesas documentation for the 100-pin M32C/85 variant. The M30855FHGP#U5 maintains this performance ceiling across its specified voltage and temperature range.

Does the M30855FHGP#U5 support CAN FD or only classical CAN?

The M30855FHGP#U5 supports only CAN 2.0B (Classical CAN) across both integrated CAN modules, as explicitly stated in Section 1.2 of the Renesas datasheet. It does not implement CAN FD features such as variable bit rate or extended data length. For CAN FD requirements, designers must consider newer Renesas families like RX or RA, or the FM3 series referenced in the alternatives table.

What is the Flash memory capacity and endurance rating of the M30855FHGP#U5?

The M30855FHGP#U5 contains 384 KB of on-chip Flash memory, as indicated by the "H" in its part numbering system per Figure 1.2. Its program/erase endurance is rated at 100 cycles across the full memory space, with supported supply voltages of either 3.3 V ± 0.3 V or 5.0 V ± 0.5 V - a specification verified in Table 1.1 and Table 1.2 of the Renesas M32C/85 Group documentation.

How many analog input channels does the M30855FHGP#U5 support in its 100-pin package?

The M30855FHGP#U5 in the 100-pin LQFP package supports 26 analog input channels, as documented in Table 1.2 under "A/D Converter" for the 100-pin configuration. This includes dedicated AN00–AN07, AN20–AN27, AN150–AN157, and auxiliary inputs KI0–KI3 and ANEX0–ANEX1 - all accessible through designated port pins per Figures 1.4 and 1.5.

Is the M30855FHGP#U5 pin-compatible with any 144-pin M32C/85 variants?

No, the M30855FHGP#U5 is not pin-compatible with 144-pin M32C/85 variants such as M30855FHGP#U8. Its 100-pin PLQP0100KB-A package omits ports P11–P15, reduces analog channel count from 34 to 26, and excludes certain bus control signals (e.g., CS3–CS0 multiplexed on P44–P47). These differences are explicitly noted in Tables 1.1–1.2 and Figure 1.4 of the Renesas datasheet.