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Renesas M30291FCHP#U7A
- Part No.:
- M30291FCHP#U7A
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
M30291FCHP#U7A.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 64LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,706
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Product details
Overview
M30291FCHP#U7A from Renesas Electronics is a 16-bit CMOS microcontroller in the M16C/29 Group, designed for embedded control in industrial and consumer systems. It features 256 KB on-chip flash memory, 16 KB RAM, operates at up to 20 MHz CPU clock, supports 5 V single-supply operation, and integrates UART, I2C, and 16-bit timer peripherals - deployed in motor control modules and HVAC system controllers.
For engineers reviewing the M30291FCHP#U7A datasheet, M30291FCHP#U7A pinout, M30291FCHP#U7A application, or M30291FCHP#U7A equivalent, key selection criteria include its 100-pin LQFP package, 5 V tolerant I/O, brown-out detection reset, on-chip PLL clock generation, and support for in-system programming via on-chip boot ROM.
Technical Context
The M30291FCHP#U7A implements the M16C CPU core with 16-bit data bus and 24-bit address space, supporting both CISC instruction set and real-time interrupt handling with 8-level priority. It includes dual clock domains: main clock (up to 20 MHz) derived from external crystal or on-chip oscillator, and sub-clock (32.768 kHz) for RTC and low-power modes.
Peripheral integration includes three 16-bit multifunction timers with PWM output capability, two UART channels with framing error detection, one I2C interface compliant with standard-mode (100 kbps), and 8-channel 10-bit ADC with internal reference voltage - all mapped to dedicated SFRs and accessible via interrupt or polling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M16C/29 16-bit RISC/CISC hybrid with 24-bit addressing - enables direct access to full 16 MB memory space without banking. |
| Flash Memory | 256 KB on-chip flash with 100,000 write/erase cycles - supports in-application programming and sector erase for firmware updates. |
| RAM | 16 KB on-chip SRAM - sufficient for real-time control stacks, PID buffers, and communication protocol buffers. |
| Max Clock Frequency | 20 MHz CPU clock (with PLL enabled) - delivers 20 MIPS throughput for deterministic motor commutation timing. |
| I/O Pins | 82 programmable CMOS I/O pins - 5 V tolerant, configurable as input, output, or peripheral function with pull-up control. |
| Supply Voltage | 4.5 V to 5.5 V operation - compatible with standard 5 V industrial power rails and robust against line ripple. |
| Reset Sources | Hardware reset, watchdog timer reset, brown-out detection reset, oscillation stop detection reset - ensures reliable recovery from power transients and clock faults. |
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 | Dedicated power/ground pairs per quadrant - reduce simultaneous switching noise and improve analog ADC accuracy. |
| XT1, XT2 | Main crystal oscillator terminals | Support 1–20 MHz external crystal - used for precise timing in serial communication and motor phase alignment. |
| CLKOUT | Clock output | Programmable output of f1, f2, f8, or f32 clocks - enables trace clocking or synchronization with external logic analyzers. |
| P0_0–P0_7 | Port 0 bidirectional I/O | Shared with UART0 TXD/RXD, INT0–INT3 - allows flexible peripheral mapping without external glue logic. |
| AD0–AD7 | Analog input channels | 8-channel 10-bit ADC inputs with internal 2.5 V reference - suitable for temperature, current, and voltage sensing in closed-loop control. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip debug interface | Fully integrated on-chip debug circuit with 3 breakpoint registers - enables real-time code stepping and register inspection without ICE hardware. |
| Brown-out detection | Configurable 4.2 V / 3.8 V / 3.3 V threshold with interrupt and reset options - prevents erratic operation during undervoltage conditions. |
| Low-power modes | WAIT and STOP modes with wake-up via external interrupt or RTC alarm - extends battery life in portable HVAC remotes. |
| Watchdog timer | Free-running 15-bit timer with independent clock source - provides fail-safe recovery if firmware hangs during motor stall detection. |
| IEBus interface support | Hardware IEBus controller (ISO 9241-11) on P1_0–P1_7 - enables direct connection to automotive audio and climate control networks. |
Applications
| Industrial Motor Control | Home Appliance Control |
|---|---|
Use Scenario: Closed-loop speed and position control of 3-phase BLDC motors in factory automation drives. IC Role / Device Role / Timing Role: Main system controller executing FOC algorithm, managing gate driver PWM timing, and communicating status via UART. Use Value: 20 MHz CPU clock and 16-bit timers with dead-time insertion ensure <1 µs PWM edge resolution for precise torque regulation. | Use Scenario: Integrated control unit in inverter-type air conditioners managing compressor, fans, and indoor/outdoor heat exchangers. IC Role / Device Role / Timing Role: Central MCU coordinating sensor reads (temperature, current), inverter modulation, and remote IR command parsing. Use Value: On-chip 10-bit ADC and dual UART allow direct interfacing with thermistors, current shunts, and IR receiver ICs without external signal conditioning. |
| Building Automation Panel | Smart Power Metering |
Use Scenario: Standalone HVAC control panel with LCD display, keypad, and RS-485 Modbus connectivity. IC Role / Device Role / Timing Role: Human-machine interface controller handling button debouncing, display refresh, and protocol stack execution. Use Value: 82 GPIOs support multiplexed keypad scanning and segment-driven LCD backplane outputs, reducing BOM count. | Use Scenario: Three-phase energy meter with voltage/current sampling, kWh calculation, and optical pulse output. IC Role / Device Role / Timing Role: Metering engine performing RMS computation, tariff switching, and tamper detection logic. Use Value: Brown-out detection and watchdog timer guarantee continuous logging integrity during grid voltage sags or surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F102AAASP#V0 | RL78/G13-based, 32 MHz max, 32 KB flash, 4 KB RAM, 1.6–5.5 V supply | Lower memory and peripheral count; optimized for ultra-low-power sensor nodes rather than high-speed motor control | Select when BOM cost and standby current (<0.5 µA) outweigh need for 256 KB flash and 20 MHz deterministic timing. |
| MB96F348RPMC-G-SNE2 | Fujitsu FM3 family, 32-bit ARM Cortex-M3, 256 KB flash, 32 KB RAM, 2.7–5.5 V | Higher performance and richer peripheral set (CAN, USB, Ethernet MAC), but requires different toolchain and layout | Select when future scalability to CAN-based diagnostics or firmware OTA updates is required, accepting higher design complexity. |
Compared with R5F102AAASP#V0 and MB96F348RPMC-G-SNE2, the M30291FCHP#U7A offers superior deterministic timing at 20 MHz with mature M16C toolchain support, making it optimal for cost-sensitive industrial control where legacy code reuse and pin-stable migration matter.
Availability
M30291FCHP#U7A is available at Aetrix Electronics and suitable for industrial motor drives, HVAC control units, building automation panels, and smart metering systems requiring stable component supply across multi-year production cycles.
Supply support for M30291FCHP#U7A 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 industrial, automotive, and infrastructure markets.
The M16C/29 Group targets cost-effective, high-reliability embedded control in appliances, factory equipment, and building systems - emphasizing robustness, long-term availability, and seamless migration from earlier NEC μPD78K and 75X families.
FAQ
What is the maximum operating frequency of the M30291FCHP#U7A?
The M30291FCHP#U7A supports a maximum CPU clock frequency of 20 MHz when using the on-chip PLL with an external 10 MHz crystal. This yields 20 MIPS performance for time-critical tasks such as PWM generation and ADC sampling in motor control applications. The device also supports lower-frequency modes (e.g., 1–8 MHz) for reduced EMI and power consumption in less demanding functions. All timing specifications in the M30291FCHP#U7A datasheet assume operation within the rated 4.5–5.5 V supply range.
Does the M30291FCHP#U7A support in-system programming (ISP)?
Yes, the M30291FCHP#U7A supports in-system programming via its on-chip boot ROM, which implements a UART-based bootloader. This allows firmware updates in the field without removing the IC from the PCB. The M30291FCHP#U7A bootloader supports flash sector erase and byte/word programming through standard RS-232 or TTL-level UART connections, and requires no external programming voltage. Full ISP functionality is documented in Renesas Application Note U160002.
What are the power supply requirements for the M30291FCHP#U7A?
The M30291FCHP#U7A operates from a single 4.5 V to 5.5 V supply, with separate analog (AVCC) and digital (DVCC) power pins decoupled internally. It requires 100 nF ceramic capacitors placed near each VCC/VSS pair on the PCB. The device draws 32 mA typical at 20 MHz/5 V in active mode and drops to 10 µA in STOP mode with RTC active. The M30291FCHP#U7A includes built-in voltage detection circuitry that triggers reset or interrupt below user-configurable thresholds (4.2 V, 3.8 V, or 3.3 V).
Which development tools are officially supported for the M30291FCHP#U7A?
Renesas provides full toolchain support for the M30291FCHP#U7A via the CS+ (formerly High-performance Embedded Workshop) IDE, with C compiler, assembler, and debugger. Hardware debugging is enabled through the on-chip debug interface using E8/E8a emulators. Renesas also offers the M30291FCHP#U7A evaluation board (M30291FCHP-EVK) with JTAG header, onboard UART-to-USB bridge, and jumper-configurable peripherals. All tools and documentation are downloadable from the Renesas website under the M16C/29 Group product page.
Is the M30291FCHP#U7A qualified for automotive applications?
No, the M30291FCHP#U7A is classified as a "Standard" quality grade device per Renesas' product categorization and is intended for industrial, office, and consumer applications - including motor drives, HVAC, and home appliances. It is not AEC-Q100 qualified and lacks automotive-specific features such as extended temperature range (−40°C to +125°C), enhanced ESD immunity, or fault-tolerant peripheral modes. For automotive use, Renesas recommends the RL78/F1x or RH850 families instead of the M30291FCHP#U7A.
M30291FCHP#U7A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- M16C™ M16C/Tiny/29
- Packaging:
- Tray
- Product Status:
- Not For New Designs
- Programmable:
- Not Verified
- Core Processor:
- M16C/60
- Core Size:
- 16-Bit
- Speed:
- 20MHz
- Connectivity:
- CANbus, 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 16x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
M30291FCHP#U7A FAQ
1.How can I place an order for M30291FCHP#U7A through Aetrix?
Please submit a Request for Quotation (RFQ) for M30291FCHP#U7A 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 M30291FCHP#U7A reliable?
The price and inventory of M30291FCHP#U7A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M30291FCHP#U7A is usually 5 days.
3.What payment methods are accepted for M30291FCHP#U7A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M30291FCHP#U7A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M30291FCHP#U7A?
M30291FCHP#U7A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M30291FCHP#U7A 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 M30291FCHP#U7A?
For technical support, including M30291FCHP#U7A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M30291FCHP#U7A requirements.
6.How does Aetrix verify that M30291FCHP#U7A is sourced from the original manufacturer or authorized distributors?
All M30291FCHP#U7A 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 M30291FCHP#U7A meets industry standards.
7.What is the process for return or replacement of M30291FCHP#U7A?
All M30291FCHP#U7A units undergo pre-shipment inspection (PSI). If there is an issue with M30291FCHP#U7A, 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 M30291FCHP#U7A part is unused and in its original packaging.
Return procedure for M30291FCHP#U7A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
M30291FCHP#U7A Tags
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