Renesas M30280FCHP#U7B

Overview

M30280FCHP#U7B 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, up to 48 MHz operation, and supports IEBus, UART, PWM, and 10-bit ADC - deployed in motor control systems, industrial HMI panels, and factory automation controllers.

For engineers reviewing the M30280FCHP#U7B datasheet, M30280FCHP#U7B pinout, M30280FCHP#U7B application, or M30280FCHP#U7B equivalent, key selection criteria include Flash endurance (10,000 write/erase cycles), operating voltage range (2.7–5.5 V), IEBus interface compliance, real-time interrupt latency (<1.5 µs), and support for STOP/WAIT low-power modes with wake-up via external interrupt or peripheral event.

Technical Context

The M30280FCHP#U7B implements the M16C CPU architecture with 16-bit data bus and 24-bit address space, supporting both CISC instruction set and bit manipulation instructions optimized for real-time control. Its clock system integrates main crystal oscillator (1–20 MHz), sub-oscillator (32.768 kHz), on-chip oscillator, and PLL for flexible frequency synthesis up to 48 MHz.

Peripheral integration includes two 16-bit timer arrays (TAA/TAB) with capture/compare/PWM output, four serial interfaces (UART ×2, CSI ×1, IEBus ×1), 10-bit 16-channel ADC with scan mode, and 80 general-purpose I/O pins with programmable pull-up and CMOS/TTL-compatible levels - all managed via dedicated SFRs and interrupt vectors mapped to fixed priority levels.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, 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 R5F102BAASP#V0 and M30262F8GP#U5, the M30280FCHP#U7B delivers higher Flash/RAM density, faster 48 MHz operation, and full IEBus hardware - making it optimal for new designs requiring robust legacy bus integration and computational headroom for future firmware expansion.

Availability

M30280FCHP#U7B is available at Aetrix Electronics and suitable for industrial motor control, factory automation HMI, and automotive body electronics requiring stable component supply across multi-year production cycles.

Supply support for M30280FCHP#U7B 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 M30280FCHP#U7B, was engineered for cost-effective, high-reliability embedded control in resource-constrained industrial and automotive environments - emphasizing real-time responsiveness, mixed-signal integration, and long-term manufacturability.

FAQ

What is the maximum operating frequency of the M30280FCHP#U7B?

The M30280FCHP#U7B supports a maximum CPU clock frequency of 48 MHz, achieved using its on-chip PLL to multiply an external crystal input (e.g., 8 MHz ×6). This frequency is sustained across the full industrial temperature range (−40°C to +85°C) and supply voltage range (2.7–5.5 V), enabling deterministic real-time execution in demanding control loops. The M30280FCHP#U7B achieves this without external clock buffers or frequency synthesizers.

Does the M30280FCHP#U7B include hardware support for IEBus communication?

Yes, the M30280FCHP#U7B integrates a dedicated IEBus controller compliant with JEIDA-5001, supporting master/slave operation, automatic frame formatting, CRC generation/checking, and collision detection. It uses four dedicated pins (IEBUS0–IEBUS3) for differential signaling and requires only an external transceiver for bus physical layer interfacing. This hardware acceleration eliminates software overhead and ensures timing-critical IEBus timing compliance in automotive and industrial networks - a core capability of the M30280FCHP#U7B.

What low-power modes does the M30280FCHP#U7B support, and how do they differ?

The M30280FCHP#U7B offers three distinct low-power modes: WAIT (CPU halted, peripherals and interrupts active), STOP (all clocks stopped except sub-oscillator, retaining RAM and register contents), and HALT (deep sleep with RTC wake-up capability). Each mode reduces current consumption progressively - from ~15 mA in RUN to ~10 µA in STOP - while preserving specific functionality. Wake-up sources include external interrupts, peripheral events (e.g., UART receive), and the sub-oscillator-based real-time clock. These modes are fully supported in the M30280FCHP#U7B's power control unit and documented in its Hardware Manual Rev.2.00.

How much on-chip memory does the M30280FCHP#U7B provide, and what types are included?

The M30280FCHP#U7B includes 256 KB of on-chip Flash memory for program storage and 16 KB of on-chip SRAM for data and stack operations. The Flash supports 10,000 write/erase cycles with sector protection, and the SRAM operates at full speed with zero wait states up to 48 MHz. Both memory blocks are directly mapped into the 24-bit address space and accessible without external glue logic - a defining feature of the M30280FCHP#U7B's single-chip architecture for embedded control.

Is the M30280FCHP#U7B pin-compatible with other members of the M16C/28 Group?

The M30280FCHP#U7B shares the same 100-pin LQFP package and core pinout layout with other M16C/28 Group devices such as M30281F8HP#U7B and M30282F8HP#U7B, but differences exist in peripheral enablement, memory size, and clock configuration options. While many signals (e.g., power, reset, crystal, I/O ports) align, users must verify compatibility of specific peripheral functions (e.g., IEBus pin assignment, ADC channel mapping) against the target variant's datasheet before substitution. Pin compatibility is not guaranteed across all M16C/28 variants - only confirmed within the same HP-series subfamily.