Renesas M30280FAHP#U9B

Overview

M30280FAHP#U9B from Renesas Electronics is a 16-bit single-chip microcontroller in the M16C/28 Group, designed for embedded control applications requiring integrated peripherals, low-power operation, and industrial-grade reliability. It features 256 KB on-chip flash memory, 16 KB RAM, a 16-bit CPU core operating at up to 20 MHz, and supports multiple clock sources including main crystal, sub-clock, and on-chip oscillator.

For engineers reviewing the M30280FAHP#U9B datasheet, M30280FAHP#U9B pinout, M30280FAHP#U9B application, or M30280FAHP#U9B equivalent, key selection criteria include flash endurance (10,000 write/erase cycles), operating voltage range (2.7–5.5 V), built-in voltage detection circuitry, and support for WAIT/STOP low-power modes with fast wake-up capability.

Technical Context

The M30280FAHP#U9B implements the M16C CPU architecture with 16-bit data bus and 24-bit address space, enabling direct access to its full 256 KB flash and 16 KB RAM. It integrates system-level peripherals including a 10-bit ADC (16 channels), three 16-bit timer/counters (with PWM output), UART/SIO serial interfaces, and an IEBus controller for industrial equipment networking.

Its clock generation circuit supports flexible configuration: main clock (1–20 MHz), sub-clock (32.768 kHz), on-chip oscillator (1 MHz), and PLL-based CPU clock multiplication. Reset management includes hardware reset, watchdog timer reset, oscillation stop detection, and low-voltage detection interrupt - all configurable via dedicated SFR bits.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, standard industrial temperature grade (−40°C to +85°C).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit microcontroller applications.

Compared with M30280FAHP#U9B, R5F102BAASP#30 offers better energy efficiency but sacrifices IEBus integration and flash endurance, while MB95560PFT-G-SNE1 delivers higher processing headroom at the cost of increased design complexity and loss of drop-in compatibility with existing M16C toolchains and firmware.

Availability

M30280FAHP#U9B is available at Aetrix Electronics and suitable for industrial motor control, building automation panels, PLC I/O modules, and medical diagnostic equipment interface applications requiring stable component supply and long-term lifecycle support.

Supply support for M30280FAHP#U9B 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 automotive, industrial, and IoT markets.

The M16C/28 Group, including M30280FAHP#U9B, was engineered for cost-sensitive, high-reliability industrial control applications where deterministic real-time response, integrated peripherals, and long-lifecycle availability are critical.

FAQ

What is the maximum operating frequency of the M30280FAHP#U9B?

The M30280FAHP#U9B supports a maximum CPU clock frequency of 20 MHz, achievable either directly from the main crystal oscillator or via its on-chip PLL circuit. This frequency enables 20 MIPS performance for real-time control tasks such as motor commutation and sensor data acquisition. The actual system clock is configured through the CKC register, and timing constraints for peripheral clocks (e.g., ADC, UART) must be observed per the hardware manual's timing charts.

Does the M30280FAHP#U9B include an integrated IEBus controller?

Yes, the M30280FAHP#U9B includes a fully integrated IEBus (Inter-Equipment Bus) controller compliant with JEITA RC-5237 standards. This allows direct connection to IEBus networks without external transceivers, supporting master/slave configurations and automatic frame arbitration. The controller is accessible via dedicated SFRs and supports both normal and test modes for development and diagnostics.

What low-power modes does the M30280FAHP#U9B support, and what is the minimum current draw?

The M30280FAHP#U9B supports WAIT and STOP low-power modes. In STOP mode with sub-clock active and all peripherals disabled, typical current consumption is 1.2 µA at 25°C. Wake-up is possible via external interrupt, internal timer match, or oscillation restart detection. WAIT mode retains RAM and register contents while halting the CPU clock, drawing ~200 µA under similar conditions.

Is the M30280FAHP#U9B pin-compatible with other members of the M16C/28 Group?

Yes, the M30280FAHP#U9B is pin-compatible with other 100-pin LQFP variants in the M16C/28 Group, including M30281FAXP#U9B and M30282FAXP#U9B. Pin assignments for power, reset, clock, and primary I/O ports are identical across this package variant. Differences lie in internal memory size and peripheral enablement, which are controlled by on-chip fuse settings and software configuration.

What development tools are officially supported for the M30280FAHP#U9B?

Renesas provides official support for the M30280FAHP#U9B through the HEW (High-performance Embedded Workshop) IDE with C compiler, and the E8a/E10A-USB on-chip debug emulators. Flash programming is supported via on-chip debug interface using Renesas Flash Programmer software. Application notes and peripheral driver libraries are available in the M16C/28 Group Hardware Manual (Rev.2.00) and associated software manuals.