M30281F6HP#U3B - 16-bit 20MHz M16C/Tiny MCU 48KB Flash | Renesas
MPN: M30281F6HP#U3B ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.45 | $8.45 |
| 10 | $7.62 | $76.20 |
| 100 | $6.35 | $635.00 |
| 500 | $5.4 | $2,700.00 |
| 1,000 | $4.75 | $4,750.00 |
M30281F6HP#U3B Overview
A microcontroller (MCU) is a single integrated circuit containing a CPU core, memory, and programmable peripherals designed for embedded control. The M16C family belongs to the CISC (Complex Instruction Set Computer) class of 16-bit microcontrollers and is part of Renesas's M16C/Tiny sub-series optimized for low-power industrial and consumer applications. The M16C/Tiny architecture is a streamlined variant of the full M16C/60 platform and sits within the broader Renesas MCU hierarchy: M16C/Tiny -> M16C/60 -> M16C -> 16-bit MCU -> embedded microcontroller.
Key features of the M30281F6HP#U3B include 48 KB Flash with 4 KB on-chip RAM, an internal oscillator, a 10-bit A/D converter, multiple timers, and a variety of serial interfaces (UART, I2C-bus-compatible, SPI). The 55 I/O lines support extensive peripheral integration. Industrial temperature grade (-40C to +85C) and Pb-free packaging suit factory and appliance designs requiring long-term reliability.
The architecture uses an enhanced M16C CPU core that delivers deterministic interrupt response, low power consumption, and a rich instruction set with signed multiply/divide. Built-in power management modes, including HALT and STOP, enable low standby current for battery or energy-constrained designs.
Typical applications include industrial control (PLCs, inverters, motor drivers), home appliances (washing machines, microwave ovens, air conditioners), office automation (printers, scanners), and automotive body electronics. The wide 2.7 V to 5.5 V operating range simplifies integration with both 3.3 V and 5 V sensors and actuators.
When designing with this MCU, allocate sufficient decoupling (0.1 uF plus bulk) near each VCC/VSS pair, and reserve the dedicated oscillator pins for an external crystal if higher timing accuracy is required. Designers should also budget Flash endurance of 100 erase/write cycles minimum.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes for the M30281F6HP#U3B that are not found in the manufacturer datasheet alone, supporting faster component selection and BOM decisions.
Drop-in alternatives for M30281F6HP#U3B — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with M30281F6HP#U3B (same form factor and footprint) — differing in Series, RoHS Status, Core Architecture, Operating Temperature, Package / Case.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
M30281F6HP#U5B
✅ Drop-In✓ In Stock
$5.55 / Unit
View Datasheet →M30281F6HP#U9B
✅ Drop-In✓ In Stock
$4.1 / Unit
View Datasheet →M30281F6HP#UFB
✅ Drop-In📋 Reference alternative (not in catalog)
M30281F4HP#U3B
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
M30281F8HP#U3B
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
M30281F6HP#U3B Maximum Ratings & Electrical Characteristics
| Core Architecture | M16C/Tiny (CISC, 16-bit) |
| Series | M16C/60 M16C/Tiny/28 |
| Program Memory (Flash) | 48 KB (48K x 8) |
| RAM Size | 4 KB (4K x 8) |
| Maximum Clock Frequency | 20 MHz |
| Supply Voltage (Vcc/Vdd) | 2.7 V to 5.5 V |
| Number of I/O Pins | 55 |
| Package / Case | 64-LFQFP / 64-LQFP (10x10 mm) |
| Oscillator Type | Internal |
| Operating Temperature | -40C to +85C (I-temp, industrial) |
| Mounting Type | Surface Mount |
| Packaging | Tray |
| Lead-Free / Pb-Free | Yes |
| RoHS Status | Compliant |
| Core Bit Width | 16-bit |
M30281F6HP#U3B Pin Configuration
| Pin 1 | P1_0/AN0 — Port 1_0 / Analog input AN0 |
| Pin 2 | P1_1/AN1 — Port 1_1 / Analog input AN1 |
| Pin 3 | P1_2/AN2 — Port 1_2 / Analog input AN2 |
| Pin 4 | P1_3/AN3 — Port 1_3 / Analog input AN3 |
| Pin 5 | VSS — Digital ground |
| Pin 6 | P1_4/AN4 — Port 1_4 / Analog input AN4 |
| Pin 7 | P1_5/AN5 — Port 1_5 / Analog input AN5 |
| Pin 8 | P1_6/AN6 — Port 1_6 / Analog input AN6 |
| Pin 9 | P1_7/AN7 — Port 1_7 / Analog input AN7 |
| Pin 10 | AVSS — Analog ground |
| Pin 11 | P3_0/DA0 — Port 3_0 / D/A output |
| Pin 12 | P3_1/DA1 — Port 3_1 / D/A output |
| Pin 13 | P3_2 — Port 3_2 |
| Pin 14 | P3_3 — Port 3_3 |
| Pin 15 | P3_4 — Port 3_4 |
| Pin 16 | P3_5 — Port 3_5 |
| Pin 17 | P3_6 — Port 3_6 |
| Pin 18 | P3_7 — Port 3_7 |
| Pin 19 | VREF — ADC reference voltage |
| Pin 20 | AVCC — Analog supply |
| Pin 21 | P4_0 — Port 4_0 |
| Pin 22 | P4_1 — Port 4_1 |
| Pin 23 | P4_2 — Port 4_2 |
| Pin 24 | P4_3 — Port 4_3 |
| Pin 25 | P4_4 — Port 4_4 |
| Pin 26 | P4_5 — Port 4_5 |
| Pin 27 | P4_6 — Port 4_6 |
| Pin 28 | P4_7 — Port 4_7 |
| Pin 29 | P5_0 — Port 5_0 |
| Pin 30 | P5_1 — Port 5_1 |
| Pin 31 | P5_2 — Port 5_2 |
| Pin 32 | P5_3 — Port 5_3 |
| Pin 33 | P5_4 — Port 5_4 |
| Pin 34 | P5_5 — Port 5_5 |
| Pin 35 | P5_6 — Port 5_6 |
| Pin 36 | P5_7 — Port 5_7 |
| Pin 37 | VSS — Digital ground |
| Pin 38 | P6_0 — Port 6_0 |
| Pin 39 | P6_1 — Port 6_1 |
| Pin 40 | P6_2 — Port 6_2 |
| Pin 41 | P6_3 — Port 6_3 |
| Pin 42 | P6_4 — Port 6_4 |
| Pin 43 | P6_5 — Port 6_5 |
| Pin 44 | P6_6 — Port 6_6 |
| Pin 45 | P6_7 — Port 6_7 |
| Pin 46 | P7_0 — Port 7_0 |
| Pin 47 | P7_1 — Port 7_1 |
| Pin 48 | P7_2 — Port 7_2 |
| Pin 49 | P7_3 — Port 7_3 |
| Pin 50 | P7_4 — Port 7_4 |
| Pin 51 | P7_5 — Port 7_5 |
| Pin 52 | P7_6 — Port 7_6 |
| Pin 53 | P7_7 — Port 7_7 |
| Pin 54 | VCC — Digital supply |
| Pin 55 | XIN — Crystal oscillator input |
| Pin 56 | XOUT — Crystal oscillator output |
| Pin 57 | RESET — Reset input (active low) |
| Pin 58 | MODE — Mode select (program/debug) |
| Pin 59 | P8_0 — Port 8_0 |
| Pin 60 | P8_1 — Port 8_1 |
| Pin 61 | P8_2/TXD — Port 8_2 / UART TXD |
| Pin 62 | P8_3/RXD — Port 8_3 / UART RXD |
| Pin 63 | P8_4/CLK — Port 8_4 / external clock |
| Pin 64 | P8_5 — Port 8_5 |
Typical Applications
M30281F6HP#U3B is suitable for 6 applications: Industrial Control (PLCs, Inverters, Motor Drivers), Home Appliances (Washing Machines, Microwave Ovens, Air Conditioners), Office Automation (Printers, Scanners, Multifunction Devices), Automotive Body Electronics (Non-Safety), Smart Sensor Hubs and IoT Edge Nodes, Power Conversion and Smart Inverters.
Industrial Control (PLCs, Inverters, Motor Drivers)
The M30281F6HP#U3B fits industrial PLC and motor-driver applications because of its 16-bit M16C core with deterministic interrupt response, 48 KB Flash for protocol/firmware, and 55 I/O lines for sensor and actuator interfacing. Operating from 2.7 V to 5.5 V at 20 MHz, the MCU handles PWM generation, encoder feedback, and fieldbus I/O within tight control loops. The industrial -40C to +85C temperature grade supports factory-floor deployment, while the 64-LFQFP package enables compact, vibration-resistant PCB layouts for inverter and servo amplifier boards.
Recommended
Home Appliances (Washing Machines, Microwave Ovens, Air Conditioners)
In washing machines, microwave ovens, and air conditioners, the M30281F6HP#U3B provides the 16-bit processing headroom needed for motor control algorithms, sensor fusion, and user-interface handling. The 48 KB Flash stores control firmware plus diagnostic logs, while 4 KB RAM supports real-time task scheduling. With 55 I/O pins, the MCU connects directly to keypad inputs, LED/LCD displays, triac drivers, and temperature/humidity sensors - reducing external logic and BOM cost. The Pb-free 64-LFQFP package meets appliance safety and environmental compliance requirements.
Recommended
Office Automation (Printers, Scanners, Multifunction Devices)
Office printers and multifunction peripherals benefit from the M30281F6HP#U3B's balance of 48 KB Flash for firmware, 4 KB RAM for buffer management, and 20 MHz M16C CPU throughput for image processing and motor control. The 55 I/O lines drive stepper motors, paper sensors, and communication ports (UART, I2C, SPI), while the wide 2.7 V to 5.5 V supply simplifies integration with 3.3 V logic and 5 V actuator drivers. The 64-LFQFP package supports dense PCB designs in compact printer mainboards.
Recommended
Automotive Body Electronics (Non-Safety)
For non-safety automotive body applications such as seat controllers, mirror adjusters, and HVAC panels, the M30281F6HP#U3B offers robust 16-bit processing, 48 KB Flash, and industrial-grade temperature operation suitable for cabin environments. The M16C CISC architecture delivers deterministic interrupt handling for body-control communication stacks (LIN/CAN software layers), and the 55 I/O lines interface with multiple sensor and actuator channels. Designers should verify specific OEM automotive qualifications before deployment.
Recommended
Smart Sensor Hubs and IoT Edge Nodes
In sensor-hub and IoT edge-node designs, the M30281F6HP#U3B combines low-power HALT/STOP modes with 48 KB Flash for over-the-air update staging and sensor-processing firmware. The wide 2.7 V to 5.5 V supply range supports direct battery connection, and 55 I/O lines accommodate multiple I2C/SPI sensor buses plus analog inputs via the on-chip ADC. The 64-LFQFP package is suited to small-form-factor sensor modules deployed in industrial IoT and building-automation gateways.
Recommended
Power Conversion and Smart Inverters
The M30281F6HP#U3B serves as a control MCU for low-to-medium power inverters and DC-DC converters, leveraging its 16-bit CISC performance for fast PID loops, PWM generation, and fault handling. With 48 KB Flash and 4 KB RAM, the device stores control algorithms and protection firmware, while 55 I/O pins interface to gate drivers, current shunts, and isolated communication links. The industrial temperature grade and 64-LFQFP package fit compact power-stage control boards operating in harsh thermal environments.
Recommended
Recommended Products Summary
Engineering reference data for M30281F6HP#U3B — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | M30281F6HP#U5B | M30281F6HP#U9B | M30281F6HP#UFB | M30281F4HP#U3B | M30281F8HP#U3B |
|---|---|---|---|---|---|---|
| Brand | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics |
| Package | 64-LFQFP (10x10 mm) | 64-LFQFP (10x10 mm) - same | 64-LFQFP (10x10 mm) - same | 64-LFQFP (10x10 mm) - same | 64-LFQFP (10x10 mm) - same | 64-LFQFP (10x10 mm) - same |
| Core / Architecture | M16C/Tiny/28 (16-bit CISC) | M16C/Tiny/28 (16-bit CISC) | M16C/Tiny/28 (16-bit CISC) | M16C/Tiny/28 (16-bit CISC) | M16C/Tiny/28 (16-bit CISC) | M16C/Tiny/28 (16-bit CISC) |
| Flash Program Memory | 48 KB | 48 KB | 48 KB | 48 KB | 32 KB (-33%) | 64 KB (+33%) |
| RAM Size | 4 KB | 4 KB | 4 KB | 4 KB | 4 KB | 4 KB |
| Maximum Clock Frequency | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Supply Voltage | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Key Differentiators
- Mature M16C/Tiny/28 architecture with broad industrial install base (vs M30281F4HP#U3B)
- Pin-compatible with U3B/U5B/U9B/UFB suffix options (vs M30281F8HP#U3B)
- Industrial temperature grade and Pb-free compliance (vs Generic M16C/60 series)
Design Notes
Decouple each VCC/AVCC pin with a 0.1 uF ceramic capacitor placed as close as possible to the package, plus a 10 uF bulk capacitor near the MCU. Use separate analog and digital ground planes joined at a single point near the MCU to minimize ADC reference noise. The wide 2.7 V to 5.5 V supply range allows direct 3.3 V or 5 V operation, but verify regulator transient response for high-speed digital switching loads.
Route the crystal traces (XIN/XOUT) short and symmetric, with a guard ground around them to reduce noise coupling. Place the RESET line pull-up resistor close to the MCU and avoid routing it near switching signals. For 55 I/O lines in a 64-LFQFP, use at least 4 inner PCB layers to fan out the signals without congestion; ensure ESD protection diodes are placed near external connectors.
Do not exceed 5.5 V on VCC or AVCC - damage is permanent. Ensure MODE pin configuration matches the boot mode (single-chip vs. serial programming) before power-up, or the MCU may enter an unexpected state. Verify ADC VREF decoupling to avoid conversion noise, and confirm that interrupt vector addresses match the linker script when migrating firmware between M16C family variants.
Compliance Information
RoHS compliant and Pb-free per Mouser listing ('Pb-free 64-QFP'). Industrial temperature grade (-40C to +85C). AEC-Q100 not explicitly stated for this part - contact Renesas for automotive qualification status.
