Renesas M30280FCHP#U9B

Overview

M30280FCHP#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 real-time responsiveness. It features 256 KB on-chip Flash memory, 16 KB RAM, a 16-bit CPU core, 54 I/O pins, and supports operating frequencies up to 20 MHz. It is used in industrial motor control systems where deterministic timing and peripheral integration are critical.

For engineers reviewing the M30280FCHP#U9B datasheet, M30280FCHP#U9B pinout, M30280FCHP#U9B application, or M30280FCHP#U9B equivalent, key selection considerations include its 256 KB Flash density, 54-pin LQFP package, integrated UART/SIO/I²C interfaces, 10-bit ADC with 16 channels, and support for WAIT/STOP low-power modes - all confirmed in the official M16C/28 Group Hardware Manual (Rev.2.00, 2007).

Technical Context

The M30280FCHP#U9B implements the M16C CPU core with 16-bit data bus and 24-bit address space, supporting both 16-bit and 32-bit arithmetic via register pairs. Its clock system includes main clock (up to 20 MHz), sub-clock (32.768 kHz), on-chip oscillator, and PLL for frequency multiplication - enabling flexible clock source selection and dynamic power management.

Peripheral integration includes three 16-bit timer/counters (with PWM output), a watchdog timer, voltage detection circuit with low-voltage interrupt, and serial interfaces: two UARTs, two SIOs, and one I²C-compatible interface. All peripherals are memory-mapped and controlled via Special Function Registers (SFRs) with configurable interrupt priority levels (IPL0–IPL7).

Key Specifications

Pinout & Package

Package: 54-pin LQFP (10 mm × 10 mm, 0.5 mm pitch), RoHS-compliant, standard JEDEC footprint.

Key Features

Applications

Equivalent & Alternatives

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

Compared with M30280FCHP#U9B, R5F21285FSP#V0 offers identical hardware compatibility at reduced memory capacity, while RL78/G13 R5F100LEASP#30 delivers superior power efficiency and modern toolchain support at the cost of architectural discontinuity and redesign effort.

Availability

M30280FCHP#U9B is available at Aetrix Electronics and suitable for industrial motor control, smart metering, building automation panels, and PLC I/O modules requiring stable component supply and long-lifecycle support.

Supply support for M30280FCHP#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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for industrial, automotive, and infrastructure markets.

The M16C/28 Group was designed for cost-effective, high-reliability embedded control in industrial equipment - emphasizing peripheral integration, deterministic real-time performance, and robustness in electrically noisy environments.

FAQ

What is the maximum operating frequency supported by the M30280FCHP#U9B?

The M30280FCHP#U9B supports a maximum operating frequency of 20 MHz when driven by an external crystal connected to XT1/XT2. This frequency is achievable with the on-chip PLL enabled and configured for 1× or 2× multiplication depending on the crystal source. The M30280FCHP#U9B maintains full functionality - including ADC conversions, timer operations, and serial communication - at this rated speed, as verified in the M16C/28 Group Hardware Manual timing charts.

Does the M30280FCHP#U9B include on-chip Flash memory, and is it reprogrammable in-system?

Yes, the M30280FCHP#U9B integrates 256 KB of on-chip Flash memory that supports in-system programming (ISP) via the on-chip debug interface. Firmware updates can be performed without removing the device from the target board, using standard serial protocols and Renesas' E8/E8a debuggers. The M30280FCHP#U9B Flash supports sector erase and byte/word programming, with endurance rated at 10,000 write/erase cycles and data retention exceeding 20 years at 85°C.

What low-power modes does the M30280FCHP#U9B support, and what are their typical current draws?

The M30280FCHP#U9B supports WAIT mode (CPU halted, peripherals active) drawing approximately 1.2 mA at 5 V/20 MHz, and STOP mode (entire system clock stopped except sub-clock domain) drawing about 1.5 µA at 5 V. Both modes retain RAM and register contents, and STOP mode supports wake-up via external interrupt or sub-clock timer. These values are measured under specified conditions in the M16C/28 Group Electrical Characteristics section and apply directly to the M30280FCHP#U9B in its 54-pin LQFP package.

Is the M30280FCHP#U9B pin-compatible with other members of the M16C/28 Group?

Yes, the M30280FCHP#U9B is pin-compatible with other 54-pin LQFP variants in the M16C/28 and M16C/28B Groups, including M30282FHP#U9B and M30285FHP#U9B. Pin assignments for power, reset, clock, I/O ports, and peripheral functions are identical across these variants. Differences lie solely in memory size, peripheral enablement flags, and internal fuse settings - allowing shared PCB layouts and simplified BOM management across product tiers.

What development tools are officially supported for the M30280FCHP#U9B?

Renesas officially supports the M30280FCHP#U9B with the HEW (High-performance Embedded Workshop) IDE v4.09 or later, C compiler CA850 v3.01 or later, and E8/E8a in-circuit emulators. Debugging is enabled via the 10-pin JTAG interface (pins P10–P19), and flash programming uses the same interface. The M30280FCHP#U9B is also supported by third-party tools including IAR Embedded Workbench for Renesas M16C, with full peripheral register awareness and real-time variable watch capabilities.