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Renesas M30291FATHP#U3AAJ7
- Part No.:
- M30291FATHP#U3AAJ7
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- -
- Datasheet:
-
M30291FATHP#U3AAJ7.pdf
- Description:
- MCU LQFP
- Quantity:
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Product details
Overview
M30291FATHP#U3AAJ7 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 ROM, 16 KB RAM, a 16-bit CPU core operating at up to 20 MHz, and integrated peripherals including UART, I2C, PWM timers, and 10-bit ADC. It targets motor control, power supply management, and appliance subsystems requiring deterministic real-time response.
For engineers reviewing the M30291FATHP#U3AAJ7 datasheet, M30291FATHP#U3AAJ7 pinout, M30291FATHP#U3AAJ7 application, or M30291FATHP#U3AAJ7 equivalent, key selection criteria include its 100-pin LQFP package, 3.3 V single-supply operation, 10-bit 16-channel ADC with 1.2 µs conversion time, hardware multiplier/divider, and support for both WAIT and STOP low-power modes.
Technical Context
The M30291FATHP#U3AAJ7 implements the M16C CPU architecture with 16-bit data bus and 24-bit address space, enabling direct access to its full 256 KB Flash and 16 KB RAM without banking. Its clock system integrates main (1–20 MHz crystal), sub (32.768 kHz), and on-chip oscillator sources, with PLL support for internal CPU clock multiplication.
Peripheral integration includes three 16-bit timer arrays (each with capture/compare/PWM functions), two serial interface modules (UART + I2C), and a 10-bit successive-approximation ADC with programmable sampling timing and scan mode - all mapped to dedicated SFRs and interrupt vectors with priority-level control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M16C/29 16-bit RISC core with 24-bit addressing, supporting 131 instructions and 16 MB address space |
| Max Operating Frequency | 20 MHz CPU clock (with PLL enabled); enables 1.2 µs instruction cycle for critical real-time loops |
| Memory | 256 KB on-chip Flash ROM (100k erase/write cycles), 16 KB RAM - sufficient for firmware + runtime variables without external memory |
| ADC | 10-bit SAR ADC with 16 input channels, 1.2 µs conversion time, and hardware-triggered scan mode for sensor monitoring |
| I/O Pins | 80 general-purpose CMOS I/O pins (of 100 total), configurable as inputs with pull-up, open-drain outputs, or peripheral function multiplexing |
| Supply Voltage | 3.0 V to 3.6 V operation - compatible with standard 3.3 V logic rails and eliminates level-shifting in mixed-voltage designs |
| Power Modes | Normal, WAIT (CPU halted, peripherals active), and STOP (all clocks halted except sub-clock) - supports <1 µA standby current |
Pinout & Package
Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, surface-mount, with exposed thermal pad for enhanced heat dissipation in motor drive or power-conversion applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dual VCC/VSS pairs per side ensure stable core voltage delivery and reduce ground bounce in high-speed I/O switching |
| P0_0–P0_7 | Port 0 bidirectional I/O | Configurable as general-purpose I/O or alternate functions including UART0 TX/RX and timer output - supports open-drain for wired-AND bus interfaces |
| P1_0–P1_7 | Port 1 bidirectional I/O | Includes ADC input channels AN0–AN7 and external interrupt inputs INT0–INT3 - enables direct analog sensor connection and fast event response |
| XTAL1/XTAL2 | Main crystal oscillator inputs | Supports 1–20 MHz fundamental-mode crystals; internal feedback resistor allows direct crystal connection without external components |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; accepts external debounced signal or microcontroller-initiated reset via watchdog timeout |
| CLKOUT | Clock output | Programmable output of f1, f2, f8, or f32 system clocks - used for trace synchronization or feeding secondary logic |
Key Features
| Feature | Design Value |
|---|---|
| Hardware Multiplier/Divider | 16×16-bit multiply and 32÷16-bit divide in single-cycle execution - accelerates PID loop calculations and digital filter coefficients |
| IEBus Interface Support | Dedicated IEBus controller (ISO 9141 compliant) with automatic frame generation and error detection - simplifies automotive body-control network integration |
| On-chip Debug Support | Fully integrated on-chip debug module with breakpoint registers and real-time trace buffer - enables non-intrusive debugging without ICE or JTAG emulator |
| Brown-out Detection | Programmable 2.7 V / 3.13 V / 4.2 V thresholds with interrupt or reset assertion - prevents erratic operation during power sag in industrial environments |
| Flash Security Protection | Three-level security lock (read protection, write protection, debug disable) controlled by dedicated SFR bits - prevents firmware reverse engineering and unauthorized reprogramming |
Applications
| Industrial Motor Control | Smart Power Supply |
|---|---|
Use Scenario: Closed-loop speed and torque regulation in BLDC fans, pumps, and compressors using hall-effect or encoder feedback. IC Role / Device Role / Timing Role: Real-time execution of FOC (Field-Oriented Control) algorithms with synchronized PWM generation and ADC sampling triggered by timer events. Use Value: 20 MHz CPU clock and hardware multiplier enable sub-10 µs vector rotation calculations; 16-bit timers provide precise 15.6 ns PWM resolution for smooth commutation. | Use Scenario: Digital control of isolated DC-DC converters and AC-DC PFC stages in telecom and server PSUs. IC Role / Device Role / Timing Role: Primary controller managing voltage/current regulation, fault protection, and communication via PMBus/I2C. Use Value: 10-bit 16-channel ADC supports simultaneous voltage/current sensing; dual UARTs allow local console and remote PMBus host interface without external bridging. |
| Home Appliance Subsystem | Building Automation Node |
Use Scenario: Cooktop temperature monitoring, induction heating control, and user interface management in smart ovens and hobs. IC Role / Device Role / Timing Role: Sensor fusion hub aggregating thermistor, touch panel, and relay driver signals while maintaining safety-critical thermal shutdown response. Use Value: Brown-out detection at 2.7 V ensures fail-safe shutdown during brownouts; Flash security prevents tampering with safety firmware parameters. | Use Scenario: Distributed HVAC zone controllers collecting temperature/humidity data and actuating dampers or valves via PWM or relay outputs. IC Role / Device Role / Timing Role: Edge node processor handling local closed-loop control, scheduled ventilation, and LonWorks/IEBus communication with central BMS. Use Value: Integrated IEBus controller eliminates external transceiver IC; 80 GPIOs support direct connection to multiple sensors and actuators without port expansion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F102BAASP#30 | RL78/G13-based 16-bit MCU with 128 KB Flash, 12 KB RAM, and lower max frequency (24 MHz CPU but 16 MHz effective due to wait states) | Lacks IEBus support; offers higher ADC resolution (12-bit) but slower conversion (6.5 µs) | Preferred for cost-sensitive, non-automotive applications where IEBus is unnecessary and higher-resolution ADC suffices |
| MB9BF518RPMC-G-SNE2 | ARM Cortex-M3 MCU with 512 KB Flash, 64 KB RAM, and floating-point unit - significantly higher performance and memory capacity | Requires external level shifters for 3.3 V I/O; no native IEBus but supports CAN 2.0B and USB | Selected when migrating to scalable platform with RTOS support, Ethernet connectivity, or advanced math-intensive tasks beyond M16C capability |
Compared with M30291FATHP#U3AAJ7, R5F102BAASP#30 offers lower system cost and improved ADC linearity but sacrifices automotive bus compatibility and Flash endurance; MB9BF518RPMC-G-SNE2 delivers architectural scalability and peripheral breadth at the expense of legacy code compatibility and higher BOM complexity.
Availability
M30291FATHP#U3AAJ7 is available at Aetrix Electronics and suitable for industrial motor control, smart power supply design, and home appliance subsystem development requiring stable component supply and long-term manufacturing continuity.
Supply support for M30291FATHP#U3AAJ7 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/29 Group was engineered for deterministic real-time control in resource-constrained embedded systems - emphasizing low-latency interrupt response, integrated analog/mixed-signal peripherals, and robust Flash reliability for industrial and white-goods applications.
FAQ
What is the maximum operating frequency of the M30291FATHP#U3AAJ7?
The M30291FATHP#U3AAJ7 supports a maximum CPU clock frequency of 20 MHz when using the on-chip PLL with an external crystal. This enables a 1.2 µs instruction cycle time for time-critical control loops. The device also supports direct crystal operation (1–20 MHz) and sub-clock (32.768 kHz) for low-power RTC functions. All timing specifications in the M30291FATHP#U3AAJ7 hardware manual assume operation within the rated 3.0–3.6 V supply range.
Does the M30291FATHP#U3AAJ7 support in-circuit debugging without external tools?
Yes, the M30291FATHP#U3AAJ7 includes a fully integrated on-chip debug module accessible via the single-wire SWD interface. It supports breakpoints, watchpoints, real-time variable monitoring, and trace buffer capture without requiring an external ICE or JTAG emulator. Debug access remains functional even when Flash security is partially enabled, provided read-protection is not activated - a key capability for field firmware updates and validation of the M30291FATHP#U3AAJ7 in production environments.
What are the ADC capabilities of the M30291FATHP#U3AAJ7?
The M30291FATHP#U3AAJ7 integrates a 10-bit successive-approximation ADC with 16 input channels, selectable reference voltages (VREF+ and VREF−), and hardware-triggered scan mode. Conversion time is fixed at 1.2 µs per channel, and results are stored in dedicated SFRs with automatic channel sequencing. The ADC supports both single-shot and continuous conversion modes, and its inputs are mapped to Port 1 pins (P1_0–P1_7) and dedicated analog pins - making it suitable for multi-sensor monitoring in motor control and power supply applications using the M30291FATHP#U3AAJ7.
Is the M30291FATHP#U3AAJ7 qualified for automotive applications?
No, the M30291FATHP#U3AAJ7 is classified as a "Standard" quality grade device per Renesas documentation and is intended for industrial, office, and consumer equipment - not automotive or safety-critical systems. While it includes IEBus interface support (used historically in automotive body networks), it lacks AEC-Q100 qualification, extended temperature range (-40°C to +125°C), and the failure-in-time (FIT) rate validation required for automotive deployment. For automotive use, Renesas recommends the RH850 or RL78/F1x families instead of the M30291FATHP#U3AAJ7.
How is Flash memory protected against unauthorized access on the M30291FATHP#U3AAJ7?
The M30291FATHP#U3AAJ7 provides three-tier Flash security: read protection (prevents external readout via debug interface), write protection (blocks programming/erasing of designated Flash blocks), and debug disable (locks the on-chip debug module). These are controlled by dedicated bits in the Flash control register (FCTL) and become active after reset. Once enabled, security settings persist until a full chip erase - which requires physical connection to a Renesas PG-FP5 programmer and valid security key. This ensures firmware IP protection in deployed M30291FATHP#U3AAJ7 units.
M30291FATHP#U3AAJ7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- -
- Series:
- -
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- -
- Core Size:
- -
- Speed:
- -
- Connectivity:
- -
- Peripherals:
- -
- Number of I/O:
- -
- Program Memory Size:
- -
- Program Memory Type:
- -
- EEPROM Size:
- -
- RAM Size:
- -
- Voltage - Supply (Vcc/Vdd):
- -
- Data Converters:
- -
- Oscillator Type:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
M30291FATHP#U3AAJ7 FAQ
1.How can I place an order for M30291FATHP#U3AAJ7 through Aetrix?
Please submit a Request for Quotation (RFQ) for M30291FATHP#U3AAJ7 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 M30291FATHP#U3AAJ7 reliable?
The price and inventory of M30291FATHP#U3AAJ7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M30291FATHP#U3AAJ7 is usually 5 days.
3.What payment methods are accepted for M30291FATHP#U3AAJ7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M30291FATHP#U3AAJ7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M30291FATHP#U3AAJ7?
M30291FATHP#U3AAJ7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M30291FATHP#U3AAJ7 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 M30291FATHP#U3AAJ7?
For technical support, including M30291FATHP#U3AAJ7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M30291FATHP#U3AAJ7 requirements.
6.How does Aetrix verify that M30291FATHP#U3AAJ7 is sourced from the original manufacturer or authorized distributors?
All M30291FATHP#U3AAJ7 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 M30291FATHP#U3AAJ7 meets industry standards.
7.What is the process for return or replacement of M30291FATHP#U3AAJ7?
All M30291FATHP#U3AAJ7 units undergo pre-shipment inspection (PSI). If there is an issue with M30291FATHP#U3AAJ7, 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 M30291FATHP#U3AAJ7 part is unused and in its original packaging.
Return procedure for M30291FATHP#U3AAJ7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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