Renesas M30280F8HP#U3B

Overview

M30280F8HP#U3B from Renesas Electronics is a 16-bit single-chip microcontroller in the M16C/28 Group, featuring 128 KB on-chip flash memory, 8 KB RAM, and operation at up to 20 MHz CPU clock. It integrates UART, I²C-compatible serial interface, 16-bit timer/counters, and 10-bit ADC with 16 channels - deployed in industrial motor control, HVAC system management, and appliance main control units.

For engineers reviewing the M30280F8HP#U3B datasheet, M30280F8HP#U3B pinout, M30280F8HP#U3B application, or M30280F8HP#U3B equivalent, key selection considerations include flash endurance (10,000 write/erase cycles), operating voltage range (2.7–5.5 V), and support for low-power STOP/WAIT modes with fast wake-up (<10 µs from STOP).

Technical Context

The M30280F8HP#U3B implements the M16C CPU core with 16-bit data bus and 24-bit address space, supporting both CISC instruction set and on-chip debug functionality via dedicated pins. It features dual clock sources - main crystal oscillator (1–20 MHz) and sub-oscillator (32.768 kHz) - with PLL-based clock multiplication enabling flexible peripheral clock derivation (f1, f2, f8, f32, fAD).

Reset architecture includes hardware reset (active-low /RES), watchdog timer reset, oscillation stop detection reset, and low-voltage detection interrupt. Memory protection is enforced via ROM/RAM write-protection bits and reserved address access prohibition, ensuring deterministic behavior in safety-critical embedded environments.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, standard JEDEC MO-220 footprint.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F102AAASP#V0 and MB95560PFT-G-SNE1, the M30280F8HP#U3B delivers optimal balance of analog integration, real-time determinism, and debug visibility for cost-sensitive industrial control - without requiring layout changes or toolchain migration.

Availability

M30280F8HP#U3B is available at Aetrix Electronics and suitable for industrial motor control, HVAC system management, and home appliance main control requiring stable component supply across long-lifecycle production programs.

Supply support for M30280F8HP#U3B 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 headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and enterprise markets.

The M16C/28 Group, including the M30280F8HP#U3B, was engineered for deterministic real-time control in cost-sensitive industrial equipment - emphasizing peripheral integration, low-power operation, and field-proven reliability over 15+ years of deployment.

FAQ

What is the maximum operating frequency of the M30280F8HP#U3B?

The M30280F8HP#U3B supports a maximum CPU clock frequency of 20 MHz, achievable via its on-chip PLL when driven by a 1–20 MHz main crystal oscillator. This yields 1.25 MIPS per MHz, delivering 25 MIPS peak performance for real-time control tasks. The M30280F8HP#U3B maintains full peripheral functionality-including ADC sampling and UART transmission-at this maximum clock rate.

Does the M30280F8HP#U3B support in-circuit debugging without external tools?

Yes, the M30280F8HP#U3B includes a single-wire background debug mode (BDM) that enables full in-circuit debugging-including breakpoints, register inspection, and real-time memory access-using only the dedicated BKGD pin. No external JTAG emulator is required, reducing development cost and board space. The M30280F8HP#U3B retains debug capability even during low-power STOP mode entry and wake-up sequences.

What are the power supply requirements for reliable operation of the M30280F8HP#U3B?

The M30280F8HP#U3B operates reliably across a supply voltage range of 2.7 V to 5.5 V, supporting both 3.3 V and 5 V system designs without level-shifting components. Its internal voltage detection circuit generates an interrupt at programmable thresholds (e.g., 2.8 V) and can trigger hardware reset below 2.5 V. The M30280F8HP#U3B maintains full functionality-including ADC accuracy and flash programming-across this entire range.

How many analog-to-digital converter channels does the M30280F8HP#U3B provide?

The M30280F8HP#U3B integrates a 10-bit successive approximation ADC with 16 selectable input channels (AD0–AD15), mapped to dedicated pins on Port 1 and Port 2. Conversion time is fixed at 1.2 µs per sample, and the ADC supports software/start-triggered and timer-triggered modes. The M30280F8HP#U3B allows simultaneous sampling of up to four channels using internal sample-and-hold circuitry for multi-sensor synchronization.

Is the M30280F8HP#U3B qualified for industrial temperature operation?

Yes, the M30280F8HP#U3B is rated for continuous operation from –40°C to +85°C ambient temperature and classified under Renesas' "Standard" quality grade - explicitly approved for industrial robots, HVAC equipment, office machinery, and factory automation systems. Its electrical characteristics, including ADC linearity and flash endurance, are guaranteed across this full range, and the M30280F8HP#U3B undergoes extended burn-in and screening per industrial reliability standards.