Renesas M30291FCVHP#U3A

Overview

M30291FCVHP#U3A 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 controllers. It targets motor control and sensor-based automation where deterministic real-time response and mixed-signal integration are required.

For engineers reviewing the M30291FCVHP#U3A datasheet, M30291FCVHP#U3A pinout, M30291FCVHP#U3A application, or M30291FCVHP#U3A equivalent, key selection criteria include its 100-pin LQFP package, CAN bus support with dedicated message RAM, 5-V tolerant I/Os, and built-in voltage detection circuitry for brown-out protection in unregulated power environments.

Technical Context

The M30291FCVHP#U3A implements the M16C CPU core with 16-bit data path and 24-bit addressing, supporting both CISC instruction set and on-chip debug functionality via JTAG interface. Its peripheral suite includes three 16-bit timer/counters with PWM output capability, a 32-bit watchdog timer with window function, and dual serial interface units (SIO) configurable as UART, clocked synchronous, or I²C master/slave.

It integrates a 5-channel DMA controller with fixed priority arbitration, enabling zero-wait-state data transfers between peripherals and memory without CPU intervention. The on-chip clock generation circuit supports main clock (1–20 MHz crystal), sub-clock (32.768 kHz), and PLL-based CPU clock scaling up to 16 MHz, with automatic oscillation stop detection and recovery interrupt handling.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), thermally enhanced with exposed thermal pad (EP). Pin 1 marked by dot; pin numbering follows counter-clockwise sequence starting from top-left corner.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F102AAASP#30 and MB9BF328RPMC-G-SNE2, the M30291FCVHP#U3A offers balanced integration of CAN, ADC, and motor control peripherals in a mature, production-proven platform-ideal for cost-constrained industrial designs where legacy toolchain compatibility and deterministic real-time behavior are critical.

Availability

M30291FCVHP#U3A is available at Aetrix Electronics and suitable for industrial motor control, home appliance networking, automotive body electronics, and smart sensor hub applications requiring stable component supply and long-term lifecycle support.

Supply support for M30291FCVHP#U3A 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 SoC solutions for industrial, automotive, and infrastructure markets.

The M16C/29 Group was developed for high-reliability embedded control in resource-constrained environments, emphasizing real-time determinism, mixed-signal integration, and long-lifecycle support for industrial and white-goods applications.

FAQ

What is the maximum operating frequency of the M30291FCVHP#U3A?

The M30291FCVHP#U3A supports a maximum CPU clock frequency of 16 MHz, achieved using the on-chip PLL with an external 1–20 MHz crystal connected to XT1/XT2. At this speed, the M30291FCVHP#U3A executes instructions at approximately 16 MIPS, enabling real-time control loops with sub-microsecond latency. The M30291FCVHP#U3A maintains full peripheral functionality-including CAN, ADC, and PWM-at rated frequency under 3.0–5.5 V supply conditions.

Does the M30291FCVHP#U3A include a CAN controller, and what version does it support?

Yes, the M30291FCVHP#U3A integrates a fully compliant CAN 2.0B controller with support for both standard (11-bit) and extended (29-bit) identifier frames. It includes 32 dedicated message objects in on-chip RAM, programmable bit timing registers, and automatic retransmission logic. The M30291FCVHP#U3A requires an external CAN transceiver (e.g., TJA1040) for physical layer compliance but handles all protocol-layer functions-including error framing, acknowledgment, and arbitration-without CPU intervention.

What package type and pin count does the M30291FCVHP#U3A use?

The M30291FCVHP#U3A is housed in a 100-pin LQFP package measuring 14 mm × 14 mm with 0.5 mm lead pitch. This JEDEC-standard footprint provides 82 general-purpose I/O pins, 4 dedicated power/ground pairs, and dedicated pins for crystal, reset, JTAG debug, and CAN physical interface. The package includes an exposed thermal pad for enhanced heat dissipation in continuous motor control or industrial ambient conditions.

Can the M30291FCVHP#U3A operate from a single 3.3 V supply?

Yes, the M30291FCVHP#U3A operates across a 3.0–5.5 V supply range, making it compatible with both 3.3 V and 5 V system rails. At 3.3 V, it delivers full functionality-including 16 MHz CPU operation, CAN communication, and 10-bit ADC conversion-with guaranteed timing margins. I/O pins are 5-V tolerant, allowing direct interfacing with legacy 5 V peripherals without level-shifting circuitry, simplifying mixed-voltage board design for the M30291FCVHP#U3A.

Is on-chip debug supported for the M30291FCVHP#U3A, and what interface is used?

Yes, the M30291FCVHP#U3A supports full on-chip debugging via a 5-pin JTAG interface (TCK, TMS, TDI, TDO, TRST). This enables real-time program execution control, register and memory inspection, hardware breakpoints, and trace buffer capture without requiring external emulators. Renesas' E1/E20 debuggers and CS+ IDE provide native support for the M30291FCVHP#U3A, streamlining firmware development and validation cycles for production-grade embedded applications.