Renesas R5F2M120ANDD#U0
- Part No.:
- R5F2M120ANDD#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 20-DIP (0.300", 7.62mm)
- Datasheet:
-
R5F2M120ANDD#U0.pdf
- Description:
- IC MCU 16BIT 2KB FLASH 20DIP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F2M120ANDD#U0 from Renesas Electronics is a 16-bit R8C CPU core microcontroller with 2 KB flash program ROM, 1 KB × 2 data flash, and 256 bytes RAM, operating at up to 20 MHz (2.7–5.5 V) or 5 MHz (1.8–5.5 V), featuring 10-bit × 6-channel A/D converter, UART0 serial interface, and dual comparator B circuits for embedded control in consumer appliances.
For engineers reviewing the R5F2M120ANDD#U0 datasheet, R5F2M120ANDD#U0 pinout, R5F2M120ANDD#U0 application, or R5F2M120ANDD#U0 equivalent, key selection criteria include its 20-pin DIP package (PRDP0020AD-A), -40 °C to +85 °C industrial temperature grade, 8 external interrupt inputs (INT × 4, KI × 4), and integrated high-current drive I/O ports for direct LED/actuator interfacing.
Technical Context
The R5F2M120ANDD#U0 implements the R8C CPU core with 89 fundamental instructions, 16×16→32-bit hardware multiplier, and multiply-accumulate capability. Its memory map spans 1 Mbyte, with fixed interrupt vector table at 0FFDCh–0FFFFh and data flash blocks at 03000h–037FFh.
It integrates three timer modules-RJ2 (16-bit), RB2 (8/16-bit selectable), and RC (16-bit with 4 capture/compare registers)-alongside UART0 supporting both synchronous and asynchronous serial I/O, and dual independent comparator B circuits (B1 and B3) with dedicated reference and output pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit core with 89 instructions, 50 ns min instruction time at 20 MHz |
| Memory | 2 KB program ROM, 2 × 1 KB data flash, 256 bytes RAM |
| A/D Converter | 10-bit resolution, 6 input channels (AN0–AN4, AN7), sweep mode support |
| Operating Voltage | 1.8 V to 5.5 V - enables single-supply operation across battery and line-powered systems |
| Temperature Range | -40 °C to +85 °C (D version) - qualified for industrial ambient environments |
| Package | 20-pin DIP (PRDP0020AD-A) - through-hole mounting compatible with legacy PCB assembly |
| I/O Ports | 17 CMOS I/O with programmable pull-up, 8 high-current drive ports for LED/relay direct drive |
Pinout & Package
20-pin DIP package (PRDP0020AD-A), 0.3 inch body width, 0.1 inch pin pitch, through-hole mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1_0/AN0/TRCIOD/KI0 | Analog input / Timer RC I/O / Key interrupt | Primary analog channel 0; supports trigger input for A/D conversion and key wake-up |
| P1_1/AN1/TRCIOA/TRCTRG/KI1 | Analog input / Timer RC I/O / Trigger / Key interrupt | Channel 1 analog input; also serves as external trigger for Timer RC event counter mode |
| P1_2/AN2/TRCIOB/KI2 | Analog input / Timer RC I/O / Key interrupt | Channel 2 analog input; dual-function I/O for PWM output or capture timing |
| P1_3/AN3/TRCIOC/KI3/TRBO | Analog input / Timer RC I/O / Key interrupt / Timer RB2 output | Channel 3 analog input; configurable as PWM output or key wake-up source |
| P1_4/AN4/TXD0/RXD0/INT0/TRCIOB | Analog input / UART TX/RX / External interrupt / Timer RC I/O | Multi-role pin: supports full-duplex UART, A/D input, and edge-triggered interrupt |
| P1_5/RXD0/TRJIO/INT1/VCOUT1 | UART RX / Timer RJ2 I/O / Interrupt / Comparator B1 output | Shared UART receive and Timer RJ2 I/O; delivers comparator B1 result directly to GPIO |
| P1_6/IVREF1/CLK0/TRJO/TRCIOB | Comparator reference / Clock output / Timer RJ2 output / Timer RC I/O | Provides stable reference voltage for comparator B1; outputs system clock or timer waveform |
| P1_7/AN7/IVCMP1/INT1/TRJIO/TRCCLK | Analog input / Comparator input / Interrupt / Timer RJ2 I/O / Timer RC clock | High-impedance analog input for comparator B1; also accepts external clock for Timer RC |
| P3_3/IVCMP3/TRCCLK/INT3 | Comparator B3 input / Timer RC clock / External interrupt | Dedicated analog input for comparator B3; doubles as external clock source for Timer RC |
| P3_4/IVREF3/TRCIOC/INT2 | Comparator B3 reference / Timer RC I/O / External interrupt | Reference voltage source for comparator B3; supports capture/compare functions on Timer RC |
| P3_5/TRCIOD/KI2/VCOUT3 | Timer RC I/O / Key interrupt / Comparator B3 output | Delivers comparator B3 result to GPIO; also serves as key wake-up and timer signal path |
| P3_7/ADTRG/TRJO/TRCIOD | A/D trigger / Timer RJ2 output / Timer RC I/O | Hardware-triggered A/D start; outputs Timer RJ2 waveform or routes Timer RC signals |
| P4_2/TRBO/TXD0/KI3 | Timer RB2 output / UART TX / Key interrupt | Configurable as PWM output, UART transmit, or key wake-up - no external driver needed |
| P4_5/INT0/ADTRG | External interrupt / A/D trigger | Edge-sensitive interrupt input; also initiates A/D conversion without software overhead |
| P4_6/XIN/RXD0/TXD0/INT1/VCOUT1 | Crystal input / UART RX/TX / Interrupt / Comparator B1 output | Supports crystal oscillator or external clock; shares UART lines and comparator output |
| P4_7/XOUT/INT2 | Crystal output / External interrupt | Oscillator feedback node; also provides second external interrupt source |
| RESET/PA_0 | Reset input / Port PA general-purpose I/O | Active-low hardware reset; PA_0 remains available as GPIO after reset release |
| MODE | Boot mode select | Must be tied to VCC via resistor to enable normal single-chip operation |
| VCC/AVCC | Digital & analog power supply | Single 1.8–5.5 V rail powers both logic and A/D subsystems; AVCC requires local decoupling |
| VSS/AVSS | Digital & analog ground | Common ground reference; AVSS must be connected close to AVCC for A/D accuracy |
Key Features
| Feature | Design Value |
|---|---|
| Integrated data flash (2 × 1 KB) | Enables field firmware updates and parameter storage without external EEPROM |
| 10-bit × 6-channel A/D converter | Supports simultaneous sampling of multiple sensors (e.g., temperature, voltage, current) |
| Dual comparator B (B1 & B3) | Provides independent overvoltage/undervoltage detection with separate references and outputs |
| 8 external interrupt inputs (INT × 4, KI × 4) | Allows responsive wake-up from wait/stop modes using buttons, sensors, or communication events |
| High-current drive I/O (8 ports) | Drives LEDs, small relays, or buzzer loads directly - eliminates discrete driver components |
| On-chip debug & flash rewrite | Permits in-system programming and real-time debugging without external emulator hardware |
Applications
| Home Appliance Control | Office Equipment Monitoring |
|---|---|
Use Scenario: Microcontroller-based washing machine control board managing motor speed, water level, temperature, and user interface. IC Role / Device Role / Timing Role: Primary system controller executing real-time motor control loops, reading analog sensor inputs, and driving display/LED indicators. Use Value: Integrated A/D, comparators, and high-drive I/O reduce BOM count; data flash stores calibration data and usage logs. | Use Scenario: Power management unit in multifunction printers monitoring supply voltage, paper jam sensors, and thermal head temperature. IC Role / Device Role / Timing Role: Supervisor MCU handling fault detection, thermal shutdown, and status reporting via UART to main processor. Use Value: Dual comparator B circuits provide independent overvoltage and overtemperature trip points with dedicated outputs for immediate response. |
| Consumer Audio System | Industrial Sensor Interface |
Use Scenario: Volume control, input selection, and display driver in compact stereo receivers or Bluetooth speakers. IC Role / Device Role / Timing Role: User interface controller managing rotary encoder inputs, button presses, and LED bar-graph displays. Use Value: 4 key interrupt inputs (KI0–KI3) and 8 high-current I/O ports enable direct LED driving and tactile feedback without external drivers. | Use Scenario: Signal conditioning and local decision-making node in factory floor environmental monitors (temp/humidity/pressure). IC Role / Device Role / Timing Role: Local sensor aggregator converting analog readings to digital values, applying thresholds, and transmitting alerts via UART. Use Value: 10-bit A/D with sweep mode captures multiple sensor channels in sequence; data flash retains calibration coefficients across power cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F2M121ANDD | 4 KB program ROM, 384 bytes RAM - double flash capacity, same peripherals and pinout | Required when firmware exceeds 2 KB or additional RAM is needed for buffering/stack depth | Select for larger code footprint while retaining identical hardware integration |
| R5F2M120ADSP | Same 2 KB/256B configuration but in 20-pin LSSOP (PLSP0020JB-A) surface-mount package | Suitable for space-constrained PCBs where through-hole DIP is not feasible | Choose for automated SMT assembly and smaller board area; requires layout change |
Compared with R5F2M120ANDD#U0, R5F2M121ANDD offers expanded program memory for feature-rich firmware, while R5F2M120ADSP provides identical functionality in a surface-mount package - enabling either code scalability or board miniaturization without architectural redesign.
Availability
R5F2M120ANDD#U0 is available at Aetrix Electronics and suitable for home appliance control, office equipment monitoring, and consumer audio systems requiring stable component supply, long-term industrial temperature support, and legacy through-hole assembly compatibility.
Supply support for R5F2M120ANDD#U0 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 is a global semiconductor leader specializing in microcontrollers, analog, and power solutions for automotive, industrial, and IoT markets.
The R8C/M12A Group, including R5F2M120ANDD#U0, was designed for cost-sensitive, low-power embedded control in consumer and industrial equipment requiring integrated analog peripherals and robust EMI/EMS performance.
FAQ
What is the maximum operating frequency and voltage range supported by the R5F2M120ANDD#U0?
The R5F2M120ANDD#U0 operates at up to 20 MHz when supplied with 2.7 V to 5.5 V, and supports reduced-frequency operation down to 5 MHz at 1.8 V minimum supply voltage. This dual-voltage/frequency capability allows flexible power management across battery-powered and line-powered designs without sacrificing peripheral functionality in the R5F2M120ANDD#U0.
Does the R5F2M120ANDD#U0 include on-chip debug capability and flash reprogramming support?
Yes, the R5F2M120ANDD#U0 features on-chip debug functionality and supports in-system flash rewriting via its built-in debug interface. This enables firmware updates and real-time debugging without requiring external emulators or programming adapters, streamlining development and field maintenance for products based on the R5F2M120ANDD#U0.
How many analog-to-digital converter channels does the R5F2M120ANDD#U0 provide, and what is their resolution?
The R5F2M120ANDD#U0 includes a 10-bit successive-approximation A/D converter with six input channels (AN0–AN4 and AN7). It supports sample-and-hold and sweep mode operation, allowing sequential conversion of multiple analog sources - a key capability for sensor-rich applications using the R5F2M120ANDD#U0.
What package type and pin count does the R5F2M120ANDD#U0 use, and is it RoHS compliant?
The R5F2M120ANDD#U0 uses a 20-pin DIP package (PRDP0020AD-A) with 0.3-inch body width and 0.1-inch pin pitch. As a Renesas product manufactured post-2006, it conforms to RoHS Directive 2011/65/EU and is lead-free - fully compliant for use in environmentally regulated R5F2M120ANDD#U0 designs.
Can the R5F2M120ANDD#U0 operate in low-power modes, and which modes are supported?
Yes, the R5F2M120ANDD#U0 supports three power control modes: standard operating mode, wait mode (CPU halted, peripherals active), and stop mode (CPU and all peripherals halted). These modes, combined with voltage detection and watchdog timer reset, enable precise energy management in battery-operated or thermally constrained R5F2M120ANDD#U0 applications.
R5F2M120ANDD#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 20-DIP (0.300", 7.62mm)
- Series:
- R8C/Mx/12A
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- R8C
- Core Size:
- 16-Bit
- Speed:
- 20MHz
- Connectivity:
- UART/USART
- Peripherals:
- POR, PWM, Voltage Detect, WDT
- Number of I/O:
- 17
- Program Memory Size:
- 2KB (2K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 256 x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 6x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -20°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
R5F2M120ANDD#U0 FAQ
1.How can I place an order for R5F2M120ANDD#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F2M120ANDD#U0 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 R5F2M120ANDD#U0 reliable?
The price and inventory of R5F2M120ANDD#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F2M120ANDD#U0 is usually 5 days.
3.What payment methods are accepted for R5F2M120ANDD#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F2M120ANDD#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F2M120ANDD#U0?
R5F2M120ANDD#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F2M120ANDD#U0 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 R5F2M120ANDD#U0?
For technical support, including R5F2M120ANDD#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F2M120ANDD#U0 requirements.
6.How does Aetrix verify that R5F2M120ANDD#U0 is sourced from the original manufacturer or authorized distributors?
All R5F2M120ANDD#U0 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 R5F2M120ANDD#U0 meets industry standards.
7.What is the process for return or replacement of R5F2M120ANDD#U0?
All R5F2M120ANDD#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F2M120ANDD#U0, 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 R5F2M120ANDD#U0 part is unused and in its original packaging.
Return procedure for R5F2M120ANDD#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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