Renesas M30291FAHP#U9A

Overview

M30291FAHP#U9A from Renesas Electronics is a 16-bit CMOS microcontroller in the M16C/29 Group, designed for embedded control in industrial and consumer systems. It features 256 KB on-chip flash memory, 16 KB RAM, a 16-MHz max CPU clock, 8-channel 10-bit ADC, and integrated UART, I²C, and CAN 2.0B controller. It operates from 2.7 V to 5.5 V and supports single-cycle instruction execution for real-time motor control and sensor interfacing.

For engineers reviewing the M30291FAHP#U9A datasheet, M30291FAHP#U9A pinout, M30291FAHP#U9A application, or M30291FAHP#U9A equivalent, key selection criteria include its 100-pin LQFP package, CAN bus support with programmable bit timing, 16-bit timer array with PWM output capability, and built-in voltage detection circuit for brown-out reset - all critical for automotive body electronics and factory automation designs.

Technical Context

The M30291FAHP#U9A implements the M16C CPU core with 16-bit data path, 24-bit address space, and Harvard architecture for simultaneous instruction/data access. It integrates a PLL-based clock generator supporting main clock (1–10 MHz), sub-clock (32.768 kHz), and on-chip oscillator modes, enabling flexible low-power operation with WAIT/STOP modes.

Its peripheral set includes dual CAN controllers (CAN0/CAN1), three serial interface modules (UART/I²C/IEBus), 16-bit multifunction timers with dead-time insertion, and a 10-bit ADC with sample-and-hold and scan conversion. All peripherals are memory-mapped and controlled via dedicated SFRs with interrupt vectoring support.

Key Specifications

Pinout & Package

The M30291FAHP#U9A is housed in a 100-pin LQFP package with exposed thermal pad, rated for industrial temperature range (−40°C to +85°C). Pin assignments follow the M16C/29 Group standard layout with dedicated power/ground pairs, configurable I/O ports (P0–P15), and function-multiplexed peripheral pins.

Key Features

Applications

Equivalent & Alternatives

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

Compared with M30291FAHP#U9A, the R5F102AAASP#30 offers lower active power but lacks CAN and flash capacity, while the MB9BF506RPMC-G-JNE1 delivers significantly higher compute headroom and dual CAN at the cost of increased code size and toolchain complexity - making M30291FAHP#U9A optimal for mature CAN-based industrial designs requiring proven reliability and minimal migration effort.

Availability

M30291FAHP#U9A is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, factory automation I/O modules, and smart home energy monitors requiring stable component supply and long-term lifecycle support.

Supply support for M30291FAHP#U9A 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 specializing in microcontrollers, analog, power, and connectivity solutions for industrial, automotive, and IoT markets.

The M16C/29 Group was engineered for deterministic real-time control in resource-constrained embedded systems, emphasizing robust peripheral integration, low-power operation, and long-lifecycle availability for industrial automation and automotive subsystems.

FAQ

What is the maximum operating frequency of the M30291FAHP#U9A?

The M30291FAHP#U9A supports a maximum CPU clock frequency of 16 MHz when using the PLL clock source. This is achieved by multiplying the main crystal input (1–10 MHz) via an on-chip PLL with selectable division ratios. The actual achievable frequency depends on supply voltage and ambient temperature, with guaranteed operation up to 16 MHz at 2.7–5.5 V and −40°C to +85°C. The M30291FAHP#U9A datasheet specifies timing parameters for all supported clock configurations.

Does the M30291FAHP#U9A include a hardware CAN controller?

Yes, the M30291FAHP#U9A integrates two independent CAN 2.0B-compliant controllers (CAN0 and CAN1) with full protocol handling including message transmission, reception, filtering, error detection, and bus-off recovery. Each controller supports programmable bit timing up to 1 Mbps and includes 32 message object buffers. These controllers operate without CPU intervention once configured, making the M30291FAHP#U9A suitable for real-time CAN network nodes.

What package type and pin count does the M30291FAHP#U9A use?

The M30291FAHP#U9A is supplied in a 100-pin LQFP package measuring 14 mm × 14 mm with 0.5 mm lead pitch and an exposed thermal pad. This package is RoHS-compliant and rated for industrial temperature range (−40°C to +85°C). Pin assignments match the M16C/29 Group standard, including dedicated power/ground pairs, 82 general-purpose I/O lines across 16 ports, and function-multiplexed peripheral signals such as CAN, UART, and ADC inputs.

Can the M30291FAHP#U9A operate from a 3.3 V supply?

Yes, the M30291FAHP#U9A operates across a supply voltage range of 2.7 V to 5.5 V, fully supporting 3.3 V nominal systems. At 3.3 V, it maintains full functionality including 16 MHz CPU operation, CAN communication, and ADC conversion, with specified electrical characteristics verified per the M16C/29 Group hardware manual. System designers must ensure stable 3.3 V rail regulation and proper decoupling per Renesas layout guidelines to guarantee reliable M30291FAHP#U9A operation.

Is on-chip debug capability available for the M30291FAHP#U9A?

Yes, the M30291FAHP#U9A includes a full-featured on-chip debug interface compliant with Renesas' E8/E8a debug standard. It supports breakpoints, watchpoints, real-time variable monitoring, and trace buffer capture without requiring external emulators. Debug access uses dedicated pins (BKGD, RESET, and CLK) and is enabled via the on-chip debug control register. This capability is integral to the M30291FAHP#U9A silicon and requires no additional hardware beyond a standard Renesas debug probe.