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Renesas R5F1037ADNA#U0
- Part No.:
- R5F1037ADNA#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
R5F1037ADNA#U0.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 24HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,544
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Product details
Overview
R5F1037ADNA#U0 from Renesas Electronics is a 24-pin HWQFN-packaged RL78/G12 16-bit microcontroller designed for industrial embedded control. It operates from 1.8 V to 5.5 V, delivers 31 DMIPS at 24 MHz, integrates 4 KB code flash and 512 B RAM, and supports UART, CSI, and 10-bit A/D conversion across 8 channels - deployed in smart sensors and programmable logic controllers.
For engineers reviewing the R5F1037ADNA#U0 datasheet, R5F1037ADNA#U0 pinout, R5F1037ADNA#U0 application, or R5F1037ADNA#U0 equivalent, key selection criteria include its industrial-grade temperature range (–40°C to +85°C), absence of data flash memory, single UART channel, and lack of DMA controller compared to R5F1027x variants.
Technical Context
The R5F1037ADNA#U0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, enabling minimum instruction execution time of 0.04167 µs at 24 MHz using the high-speed on-chip oscillator. Its memory map spans 1 MB address space with 4 KB code flash organized in 1 KB blocks.
It features an 8-channel 10-bit A/D converter with internal reference (1.45 V), 4-channel 16-bit timer (TAU0), watchdog timer, and 12-bit interval timer. Peripheral I/O includes one UART channel, one simplified SPI (CSI) channel, no simplified I²C, and 22 GPIO pins - all configured via dedicated peripheral I/O redirection register (PIOR).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space |
| Max Operating Frequency | 24 MHz via high-speed on-chip oscillator (±5% accuracy, –40°C to +85°C) |
| Memory | 4 KB code flash (1 KB block size), 512 B RAM, no data flash |
| A/D Converter | 10-bit resolution, 8 input channels, internal 1.45 V reference, –40°C to +85°C operation |
| Timers | 4-channel 16-bit TAU0, 1-channel 12-bit interval timer, 1-channel window watchdog timer |
| Serial Interfaces | 1 UART channel, 1 simplified SPI (CSI) channel, 0 simplified I²C channels |
| I/O Pins | 22 total I/O (16 CMOS I/O, 4 CMOS input, 2 N-ch open-drain @ VDD tolerance) |
| Supply & Temp | 1.8 V to 5.5 V operation; industrial ambient range: –40°C to +85°C (D-grade) |
Pinout & Package
Package: HWQFN-24 (4 mm × 4 mm, 0.5 mm pitch), exposed die pad recommended to be connected to VSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P03 | Port 0 I/O | General-purpose CMOS I/O with key return (KR6–KR9); P02/P01 support alternate SCL01/SDA01 |
| P10–P14 | Port 1 I/O | Includes UART0 (RxD0/TxD0), CSI00 (SCK00/SI00/SO00), and INTP2/INTP3 interrupt inputs |
| P20–P23 | Analog Input Port | ANI0–ANI3 with AVREFP/AVREFM references; P20/P21 serve as A/D reference voltage terminals |
| P40–P42 | Port 4 I/O | P40 = TOOL0 debug interface; P41/P42 support CSI01 (SO01/SDA01/SCK01) and timer I/O (TI02/TO02, TI03/TO03) |
| P60/P61 | I²C Interface | SCLA0/SDAA0 - open-drain I²C bus pins with 6 V tolerance; usable only as I²C master/slave |
| P121/P122 | Crystal Oscillator | X1/X2 crystal connections for main system clock; also support EXCLK external clock input |
| P125 | Reset & Debug | Active-low RESET input with internal pull-up; also serves as SI01 for CSI01 when not in reset |
| P137 | Interrupt Input | INTP0 - dedicated external interrupt pin with configurable edge sensitivity |
| VDD/VSS | Power Supply | Single 1.8–5.5 V supply; VSS connects to exposed die pad for thermal and noise performance |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power consumption | 63 μA/MHz active current enables battery-powered industrial monitoring nodes with multi-year runtime |
| On-chip oscillator accuracy | ±5% over –40°C to +85°C eliminates need for external crystal in cost-sensitive control applications |
| Hardware debug interface | Integrated on-chip debug circuit supports full SWD-based programming and real-time trace without external JTAG adapter |
| Peripheral I/O flexibility | PIOR register allows dynamic remapping of UART, CSI, and timer functions to multiple pin groups for PCB layout optimization |
| Robust reset architecture | Combines POR, LVD (12 selectable thresholds), watchdog, and illegal-instruction detection to ensure deterministic startup and fault recovery |
Applications
| Smart Sensor Node | Industrial PLC I/O Module |
|---|---|
Use Scenario: Battery-powered environmental sensor collecting temperature, humidity, and analog signals in factory settings. IC Role / Device Role / Timing Role: Main controller executing sensor acquisition, local filtering, UART-based Modbus RTU communication, and low-power HALT mode scheduling. Use Value: 63 μA/MHz active current and STOP mode extend battery life; 10-bit A/D with internal reference ensures stable measurement without external precision references. | Use Scenario: DIN-rail mounted digital I/O expansion module interfacing with legacy 24 V DC field devices. IC Role / Device Role / Timing Role: Isolated signal conditioning and protocol translation hub managing opto-isolated inputs, relay drivers, and RS-485 UART communication. Use Value: 22 GPIO with N-ch open-drain outputs tolerate 24 V logic levels; industrial temperature rating (–40°C to +85°C) guarantees reliability in uncontrolled cabinet environments. |
| Programmable Power Supply Controller | Home Appliance Motor Driver |
Use Scenario: Digital control unit in benchtop power supplies regulating output voltage/current via feedback loops. IC Role / Device Role / Timing Role: Real-time closed-loop controller sampling ADC inputs, computing PID algorithms, and generating PWM timing via TAU0 channels. Use Value: 4-channel 16-bit TAU0 provides independent PWM outputs with dead-time insertion; 31 DMIPS at 24 MHz enables sub-100 µs control loop execution. | Use Scenario: BLDC motor commutation and protection logic in washing machine drum drives. IC Role / Device Role / Timing Role: Sensorless FOC co-processor acquiring back-EMF via ADC, executing commutation state machine, and driving gate drivers via GPIO-timed outputs. Use Value: 8-channel 10-bit ADC samples motor phase voltages simultaneously; 12-bit interval timer enables precise timing for zero-crossing detection and PWM synchronization. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F1027ADNA#U0 | Includes 2 KB data flash, DMA controller, CRC engine, and ±1% oscillator accuracy; same pinout and package | Required for firmware-over-the-air updates or background data logging; supports safety-critical checksum validation | Select when data retention, background flash writes, or functional safety compliance (IEC 61508) are required |
| R5F1037AGNA#U0 | Same core and peripherals but rated for –40°C to +105°C operation; higher thermal derating limits | Deployed in under-hood automotive ECUs or high-temperature industrial enclosures where ambient exceeds +85°C | Select when extended temperature range is mandatory and industrial-grade D-part does not meet thermal margin requirements |
Compared with R5F1027ADNA#U0, the R5F1037ADNA#U0 reduces BOM cost by omitting data flash and DMA while maintaining identical footprint and core performance; versus R5F1037AGNA#U0, it trades extended temperature capability for lower unit price in standard industrial environments.
Availability
R5F1037ADNA#U0 is available at Aetrix Electronics and suitable for industrial automation, smart sensor systems, and programmable power supplies requiring stable component supply, long-term lifecycle assurance, and Renesas-authorized traceability.
Supply support for R5F1037ADNA#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 Corporation is a Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power management ICs for industrial, automotive, and IoT markets.
The RL78/G12 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive industrial control, sensor nodes, and appliance applications - balancing performance, integration, and energy efficiency.
FAQ
What is the maximum operating frequency and oscillator accuracy of the R5F1037ADNA#U0?
The R5F1037ADNA#U0 achieves a maximum operating frequency of 24 MHz using its high-speed on-chip oscillator, with frequency accuracy of ±5.0% over the industrial temperature range (–40°C to +85°C). This specification eliminates the need for an external crystal in many cost-sensitive applications while maintaining sufficient timing stability for UART communication and sensor sampling. The R5F1037ADNA#U0 does not support the tighter ±1.0% accuracy offered by the R5F1027x series.
Does the R5F1037ADNA#U0 include data flash memory?
No, the R5F1037ADNA#U0 does not include data flash memory. Per Renesas documentation, R5F103x products omit the 2 KB data flash found in R5F102x variants. This affects applications requiring nonvolatile parameter storage or firmware update staging - those use cases require selecting an R5F1027ADNA#U0 or implementing external EEPROM. The R5F1037ADNA#U0 retains 4 KB of code flash with 1 KB erase blocks and self-programming capability.
How many serial communication interfaces does the R5F1037ADNA#U0 support?
The R5F1037ADNA#U0 supports one UART channel (UART0), one simplified SPI (CSI) channel (CSI00), and zero simplified I²C channels. It does include dedicated I²C pins (P60/SCLA0 and P61/SDAA0), but these operate only in standard I²C mode - not simplified I²C - and require software bit-banging or peripheral configuration per the RL78/G12 User's Manual. This differs from R5F1027x parts, which offer two CSI and two simplified I²C channels.
What is the A/D converter configuration on the R5F1037ADNA#U0?
The R5F1037ADNA#U0 integrates an 8-channel, 10-bit successive-approximation A/D converter with internal 1.45 V reference voltage and support for AVREFP/AVREFM analog reference terminals. Input channels include ANI0–ANI3 and ANI16–ANI19. Unlike 30-pin RL78/G12 variants, the 24-pin R5F1037ADNA#U0 does not support temperature sensor readout or additional analog inputs beyond these eight channels.
Is the R5F1037ADNA#U0 pin-compatible with other RL78/G12 24-pin variants?
Yes, the R5F1037ADNA#U0 is pin-compatible with all other HWQFN-24 RL78/G12 variants including R5F1027x, R5F1037x, and R5F1027x-D/G grades. Pin functions are identical across the 24-pin family, though peripheral availability (e.g., data flash, DMA, simplified I²C) varies by part number. This allows direct substitution during prototyping or design reuse, provided firmware accounts for missing hardware features in the R5F1037ADNA#U0.
R5F1037ADNA#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 24-WFQFN Exposed Pad
- Series:
- RL78/G12
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 24MHz
- Connectivity:
- CSI, I2C, UART/USART
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 18
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 1.5K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 11x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F1037ADNA#U0 FAQ
1.How can I place an order for R5F1037ADNA#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F1037ADNA#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 R5F1037ADNA#U0 reliable?
The price and inventory of R5F1037ADNA#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F1037ADNA#U0 is usually 5 days.
3.What payment methods are accepted for R5F1037ADNA#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F1037ADNA#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F1037ADNA#U0?
R5F1037ADNA#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F1037ADNA#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 R5F1037ADNA#U0?
For technical support, including R5F1037ADNA#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F1037ADNA#U0 requirements.
6.How does Aetrix verify that R5F1037ADNA#U0 is sourced from the original manufacturer or authorized distributors?
All R5F1037ADNA#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 R5F1037ADNA#U0 meets industry standards.
7.What is the process for return or replacement of R5F1037ADNA#U0?
All R5F1037ADNA#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F1037ADNA#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 R5F1037ADNA#U0 part is unused and in its original packaging.
Return procedure for R5F1037ADNA#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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