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Renesas M30281FCHP#U9B
- Part No.:
- M30281FCHP#U9B
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
M30281FCHP#U9B.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 64LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,026
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Product details
Overview
M30281FCHP#U9B from Renesas Electronics is a 16-bit single-chip microcontroller in the M16C/28 Group, designed for embedded control with on-chip flash memory, 16 KB RAM, and integrated peripherals including UART, I2C-compatible serial interface, 16-bit timer/counters, and 10-bit ADC. It operates at up to 20 MHz CPU clock, supports 2.7–5.5 V supply, and targets industrial motor control and sensor-based automation systems.
For engineers reviewing the M30281FCHP#U9B datasheet, M30281FCHP#U9B pinout, M30281FCHP#U9B application, or M30281FCHP#U9B equivalent, key selection criteria include its 100-pin LQFP package, 128 KB on-chip flash, 16-bit CISC architecture with 16-level priority interrupt support, and built-in voltage detection and watchdog timer for robust real-time operation.
Technical Context
The M30281FCHP#U9B implements the M16C/28 Group instruction set with 16-bit data bus and 24-bit address space, supporting both ROM-less and flash-based execution modes. Its clock system integrates main crystal oscillator (1–20 MHz), sub-oscillator (32.768 kHz), on-chip RC oscillator, and PLL for flexible frequency synthesis up to 20 MHz CPU clock.
Peripheral integration includes three 16-bit timer/counters with capture/compare/PWM capability, one 8-bit reload timer, dual UART channels with framing error detection, and a 10-bit, 16-channel successive-approximation ADC with conversion time of 1.2 µs per channel. Memory protection is enforced via on-chip ROM write protection and flash lock bits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M16C/28 16-bit CISC core with 16-level priority interrupt controller and 24-bit addressing |
| Flash Memory | 128 KB on-chip flash with page erase (1 KB/page) and 100,000 write/erase cycles endurance |
| RAM Size | 16 KB on-chip RAM, accessible in zero-wait-state mode at full CPU speed |
| Max Clock Frequency | 20 MHz CPU clock derived from PLL-multiplied main oscillator or direct external clock input |
| Supply Voltage | 2.7 V to 5.5 V operation range; supports brown-out detection at 2.5 V threshold |
| ADC Resolution | 10-bit SAR ADC with 16 input channels, 1.2 µs conversion time, and internal reference (2.5 V) |
| I/O Pins | 82 programmable CMOS I/O pins with individual pull-up enable and NMI/IRQ inputs |
Pinout & Package
Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dual VCC/VSS pairs ensure stable core and I/O domain decoupling; requires local 0.1 µF ceramic capacitors |
| XIN, XOUT | Main system clock input/output | Connects to 1–20 MHz crystal or external clock source; internal feedback resistor enables crystal oscillation without external components |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; accepts min. 100 ns pulse width; triggers hardware reset sequence including register initialization and stack pointer load |
| P00–P07 | Port 0 bidirectional I/O | 8-bit port with alternate functions including UART0 TX/RX, INT0–INT3, and timer output compare; configurable as open-drain or push-pull |
| AD00–AD15 | Analog input channels | 16-channel ADC input multiplexer; AD00–AD07 mapped to P10–P17, AD08–AD15 mapped to P20–P27; share pins with digital I/O |
Key Features
| Feature | Design Value |
|---|---|
| On-chip debug interface | Fully supported via single-wire FINE interface for non-intrusive real-time debugging, breakpoint setting, and memory inspection without halting CPU |
| Low-power operation modes | WAIT (CPU stop, peripherals active), STOP (all clocks halted except sub-oscillator), and HALT (deep sleep with wake-on-interrupt); current draw as low as 1.2 µA in STOP mode |
| Integrated safety functions | Dedicated voltage detector (VDD monitor), independent watchdog timer with windowed timeout, and oscillation stop detection with automatic reset or interrupt generation |
| Peripheral flexibility | Shared pin mapping allows UART, I2C, and timer outputs on same pins; peripheral function select registers enable dynamic reconfiguration during runtime |
| Flash programming support | In-system programming via on-chip bootloader; supports serial programming through UART0 using standard Renesas Flash Development Toolkit protocol |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
Use Scenario: Closed-loop speed and position control of BLDC motors in HVAC blowers and factory conveyors. IC Role / Device Role / Timing Role: Primary MCU executing PID algorithms, generating 3-phase PWM signals via timer outputs, and sampling current/voltage feedback via ADC. Use Value: 16-bit timer resolution (65,536 counts) and 1.2 µs ADC conversion enable precise 20 kHz PWM carrier synchronization and real-time current loop updates. | Use Scenario: Battery-powered environmental monitoring node measuring temperature, humidity, and CO₂ with wireless telemetry. IC Role / Device Role / Timing Role: System controller managing sensor acquisition, data preprocessing, low-power scheduling, and UART-based communication to LoRaWAN gateway. Use Value: STOP mode current of 1.2 µA extends 2xAA battery life beyond 5 years; integrated voltage detector prevents data corruption during brown-out events. |
| Programmable Logic Controller (PLC) I/O Module | Home Appliance Control Board |
Use Scenario: DIN-rail mounted digital I/O expansion module interfacing with 24 V DC field devices in industrial automation cabinets. IC Role / Device Role / Timing Role: Central processor handling opto-isolated input scanning, relay/driver output control, and Modbus RTU communication over RS-485. Use Value: 82 GPIO pins with programmable pull-up/down and noise filtering support direct connection to industrial sensors/actuators; dual UARTs enable simultaneous host communication and diagnostics. | Use Scenario: Main control unit in premium washing machines managing water valves, drum motor, heater, and user interface. IC Role / Device Role / Timing Role: Real-time coordinator of motor phase sequencing, temperature regulation via PID, and fault-safe shutdown on overtemperature or imbalance detection. Use Value: On-chip 2.5 V ADC reference ensures consistent temperature readings across voltage fluctuations; hardware watchdog prevents runaway code during detergent dispensing sequences. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21282SDFP#V0 | Same M16C/28 Group core but with 64 KB flash, 8 KB RAM, and reduced peripheral count (no second UART, 8-channel ADC) | Suitable for cost-sensitive, lower-feature applications like basic appliance timers or simple power supplies | Select when BOM cost reduction is critical and full 128 KB flash or dual UART is unnecessary |
| RL78/G13 R5F100LEAFP#30 | 16-bit RL78 core, 128 KB flash, 12 KB RAM, 10-bit 26-channel ADC, but no dedicated I2C interface and different interrupt latency model | Better suited for ultra-low-power designs requiring sub-µA STOP mode and advanced power gating | Choose for new designs prioritizing energy efficiency over legacy M16C toolchain compatibility |
Compared with R5F21282SDFP#V0 and RL78/G13 R5F100LEAFP#30, the M30281FCHP#U9B offers higher peripheral integration (dual UART, I2C, 16-channel ADC) and full M16C software compatibility, making it optimal for upgrading existing M16C-based industrial controllers without firmware rewrite.
Availability
M30281FCHP#U9B is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, PLC I/O modules, and home appliance control boards requiring stable component supply and long-term lifecycle support.
Supply support for M30281FCHP#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 M30281FCHP#U9B, was engineered for deterministic real-time control in resource-constrained industrial equipment, emphasizing high noise immunity, wide supply tolerance, and long-lifecycle reliability.
FAQ
What is the maximum operating frequency of the M30281FCHP#U9B?
The M30281FCHP#U9B supports a maximum CPU clock frequency of 20 MHz, achieved via its on-chip PLL circuit multiplying the main oscillator input (1–20 MHz). This frequency is sustained across the full 2.7–5.5 V supply range and industrial temperature range (−40°C to +85°C), enabling deterministic real-time execution for time-critical control loops in the M30281FCHP#U9B.
Does the M30281FCHP#U9B support in-system programming?
Yes, the M30281FCHP#U9B supports in-system programming via its on-chip bootloader using UART0 and the Renesas Flash Development Toolkit protocol. This allows field firmware updates without removing the device from the PCB, and the bootloader remains protected by flash lock bits to prevent accidental overwrite of the M30281FCHP#U9B application code.
What are the power supply requirements for the M30281FCHP#U9B?
The M30281FCHP#U9B operates from a single 2.7 V to 5.5 V supply, with internal voltage regulation ensuring stable core and I/O operation across this range. It includes a programmable voltage detector that triggers an interrupt or reset at 2.5 V, protecting against data corruption during brown-out conditions - a critical feature for reliable operation of the M30281FCHP#U9B in unregulated industrial environments.
How many analog input channels does the M30281FCHP#U9B ADC support?
The M30281FCHP#U9B integrates a 10-bit successive-approximation ADC with 16 selectable input channels (AD00–AD15), mapped across Port 1 and Port 2 pins. Conversion time is fixed at 1.2 µs per channel, and the ADC uses an internal 2.5 V reference, ensuring consistent measurement accuracy independent of VCC fluctuations in the M30281FCHP#U9B.
Is the M30281FCHP#U9B pin-compatible with other M16C/28 Group devices?
Yes, the M30281FCHP#U9B shares the same 100-pin LQFP package and pin assignment with other members of the M16C/28 Group, including M30282FHP#U9B and M30283FHP#U9B. This enables drop-in replacement within the same family for memory or peripheral scaling, provided firmware accounts for differences in flash size, RAM, or peripheral enablement - a key design advantage of the M30281FCHP#U9B platform.
M30281FCHP#U9B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- M16C™ M16C/Tiny/28
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- M16C/60
- Core Size:
- 16-Bit
- Speed:
- 20MHz
- Connectivity:
- I2C, IEBus, SIO, UART/USART
- Peripherals:
- DMA, POR, PWM, Voltage Detect, WDT
- Number of I/O:
- 55
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 12K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 13x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -20°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
M30281FCHP#U9B FAQ
1.How can I place an order for M30281FCHP#U9B through Aetrix?
Please submit a Request for Quotation (RFQ) for M30281FCHP#U9B on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for M30281FCHP#U9B reliable?
The price and inventory of M30281FCHP#U9B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M30281FCHP#U9B is usually 5 days.
3.What payment methods are accepted for M30281FCHP#U9B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M30281FCHP#U9B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M30281FCHP#U9B?
M30281FCHP#U9B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M30281FCHP#U9B order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for M30281FCHP#U9B?
For technical support, including M30281FCHP#U9B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M30281FCHP#U9B requirements.
6.How does Aetrix verify that M30281FCHP#U9B is sourced from the original manufacturer or authorized distributors?
All M30281FCHP#U9B products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that M30281FCHP#U9B meets industry standards.
7.What is the process for return or replacement of M30281FCHP#U9B?
All M30281FCHP#U9B units undergo pre-shipment inspection (PSI). If there is an issue with M30281FCHP#U9B, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The M30281FCHP#U9B part is unused and in its original packaging.
Return procedure for M30281FCHP#U9B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
M30281FCHP#U9B Tags
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ATTINY4-TSHR
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