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Renesas R5F1037AANA#25
- Part No.:
- R5F1037AANA#25
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
R5F1037AANA#25.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 24HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,570
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Product details
Overview
R5F1037AANA#25 from Renesas Electronics is a 24-pin RL78/G12 16-bit microcontroller designed for ultra-low-power general-purpose embedded control, featuring 12 KB code flash, 1 KB RAM, 8-channel 10-bit A/D converter, and 1 UART channel - deployed in battery-powered sensor nodes and industrial HMI front-ends.
For engineers reviewing the R5F1037AANA#25 datasheet, R5F1037AANA#25 pinout, R5F1037AANA#25 application, or R5F1037AANA#25 equivalent, key selection criteria include its 24-pin HWQFN package, -40°C to +85°C consumer-grade temperature range, absence of data flash memory, and simplified SPI/I²C omission versus R5F102 variants - critical for cost-sensitive, low-complexity control tasks requiring minimal peripheral overhead.
Technical Context
The R5F1037AANA#25 implements the RL78 CPU core with 3-stage pipeline CISC architecture, delivering 31 DMIPS at 24 MHz while maintaining true low-power operation (63 μA/MHz). It operates from a single 1.8–5.5 V supply and supports HALT, STOP, and SNOOZE low-power modes.
Its peripheral set includes four 16-bit timer channels, one 12-bit interval timer, one window watchdog timer, and an on-chip high-speed oscillator selectable from 1–24 MHz with ±5.0% accuracy over -40°C to +85°C - but excludes DMA, CRC, RAM/SFR guard, and data flash memory found in R5F1027x counterparts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time control with 0.04167 µs min instruction time @24 MHz |
| Memory | 12 KB code flash + 1 KB RAM; no data flash - simplifies firmware update logic and reduces BOM cost for fixed-function applications |
| Operating Voltage | 1.8 V to 5.5 V single supply; supports direct interface with 1.8/2.5/3.3/5 V peripherals without level shifters |
| A/D Converter | 10-bit resolution, 8 input channels, internal 1.45 V reference; suitable for analog sensor monitoring in HVAC and appliance controls |
| Timers | Four 16-bit TAU channels + one 12-bit interval timer + one window watchdog; provides PWM generation, timing capture, and system safety supervision |
| Serial Interfaces | One UART channel only; no CSI, I²C, or simplified I²C - targets point-to-point host communication, not multi-device bus systems |
| Power Consumption | 63 μA/MHz active current; HALT/STOP/SNOOZE modes enable sub-μA sleep states for energy harvesting and battery longevity |
Pinout & Package
Package: 24-pin HWQFN (4 × 4 mm, 0.5-mm pitch), exposed die pad (to be connected to VSS), RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P125/KR1/SI01/RESET | Reset input / Serial data input | Active-low reset with internal pull-up; dual-function pin allows shared PCB routing with debug tooling or external SPI slave |
| P10/ANI16/PCLBUZ0/SCK00/SCL00 | Port 1 bit 0 / Analog input / Clock output / SPI clock / I²C clock | Multi-function pin configurable via PIOR; default use as analog input or programmable buzzer clock avoids external oscillator |
| P11/ANI17/SI00/RxD0/SDA00/TOOLRxD | Port 1 bit 1 / Analog input / SPI data in / UART receive / I²C data / Debug RX | Enables unified debug and application serial interface; eliminates need for separate UART and SWD headers in space-constrained designs |
| P12/ANI18/SO00/TxD0/TOOLTxD | Port 1 bit 2 / Analog input / SPI data out / UART transmit / Debug TX | Shared UART TX and debug TX reduces pin count; supports bootloader updates and runtime diagnostics over same physical line |
| P20/ANI0/AVREFP | Analog input / Positive reference voltage | Dedicated AVREFP pin enables ratiometric A/D measurements with external sensors, improving accuracy vs. VDD-referenced conversion |
| P21/ANI1/AVREFM | Analog input / Negative reference voltage | Paired with P20 to support differential analog sensing; essential for precision current/voltage monitoring in power supplies |
| VDD / VSS | Power supply / Ground | Single 1.8–5.5 V rail; exposed thermal pad must be soldered to ground plane for thermal stability and EMI reduction |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 63 μA/MHz active current + SNOOZE mode enables <1 μA sleep with wake-on-peripheral-event - extends coin-cell life to >5 years in wireless sensors |
| On-chip high-speed oscillator | 24 MHz max frequency with ±5.0% accuracy over full temp range - eliminates external crystal for cost-sensitive timing-critical applications like motor control |
| Hardware-assisted debugging | Integrated on-chip debug circuit with TOOL0/TOOLRxD/TOOLTxD pins - enables full JTAG/SWD emulation without external debugger hardware |
| Flexible I/O configuration | 22 total I/O pins including N-ch open-drain (VDD-tolerant) and TTL-input buffers - supports mixed-voltage interfacing with legacy 5 V logic and modern 1.8 V sensors |
| Temperature sensor | On-die thermal sensor with factory calibration - provides system-level thermal monitoring for fan control or overtemperature shutdown without external components |
Applications
| Smart Appliance Control | Industrial Sensor Node |
|---|---|
|
Use Scenario: Embedded controller in washing machine main board managing motor drive, water valve actuation, and user interface. IC Role / Device Role / Timing Role: Real-time execution of PID motor control loops, ADC sampling of current/voltage feedback, and UART-based communication with display module. Use Value: 31 DMIPS performance at 24 MHz ensures deterministic loop timing; 12 KB flash accommodates field-upgradable firmware with safety checksums. |
Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and CO₂ in factory floor zones. IC Role / Device Role / Timing Role: Low-power sensor acquisition hub with wake-on-interrupt A/D sampling, UART telemetry to gateway, and SNOOZE-mode scheduling. Use Value: 63 μA/MHz active current + sub-μA STOP mode extends 2000 mAh Li-SOCl₂ battery life beyond 10 years per replacement cycle. |
| Consumer HMI Front-End | LED Lighting Controller |
|
Use Scenario: Touch-button and LED status panel for HVAC remote control unit with IR transmission. IC Role / Device Role / Timing Role: Key interrupt handling, LED PWM dimming via TAU timers, IR carrier generation using PCLBUZ0 output, and UART command parsing. Use Value: On-chip buzzer/clock generator eliminates external 32.768 kHz crystal; 8-channel A/D supports resistive touch overlay without external ADC. |
Use Scenario: Constant-current LED driver for commercial downlight with thermal foldback and DALI interface. IC Role / Device Role / Timing Role: Closed-loop current regulation using analog feedback, thermal shutdown via on-die sensor, and DALI message decoding via UART. Use Value: Single-supply 1.8–5.5 V operation interfaces directly with DALI bus transceivers; 1 KB RAM suffices for DALI stack and lighting scene storage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F1027AANA#25 | Includes 2 KB data flash, DMA controller, CRC engine, and ±1.0% oscillator accuracy - adds 0.3 mm² die area and $0.12 BOM cost | Required for field firmware updates with background data logging; unsuitable where cost or security certification restricts flash write cycles | Select when persistent parameter storage or safety-critical CRC validation is mandatory; avoid if application uses static configuration only |
| R5F1037ADNA#25 | Identical silicon but rated for -40°C to +85°C industrial grade (D suffix); same pinout, memory, and peripherals | Qualified for extended temperature operation in motor drives or outdoor enclosures where ambient exceeds 70°C | Choose for industrial environments requiring guaranteed operation at 85°C junction; no design change needed beyond qualification testing |
Compared with R5F1037AANA#25, R5F1027AANA#25 adds data flash and safety features at higher cost and power, while R5F1037ADNA#25 offers identical functionality with extended temperature qualification - enabling seamless migration from consumer to industrial deployment without layout revision.
Availability
R5F1037AANA#25 is available at Aetrix Electronics and suitable for smart appliance control, industrial sensor nodes, consumer HMI front-ends, LED lighting controllers, and battery-powered IoT edge devices requiring stable component supply across multi-year production cycles.
Supply support for R5F1037AANA#25 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 headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G12 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and general-purpose embedded control applications - balancing performance, integration, and energy efficiency without external memory or complex toolchains.
FAQ
What is the maximum operating frequency and instruction throughput of the R5F1037AANA#25?
The R5F1037AANA#25 achieves a maximum system clock of 24 MHz using its on-chip high-speed oscillator, delivering 31 DMIPS of processing performance. Its minimum instruction execution time is 0.04167 µs under high-speed oscillator conditions, enabling deterministic real-time response for motor control and sensor fusion algorithms within the R5F1037AANA#25's 12 KB code flash footprint.
Does the R5F1037AANA#25 include data flash memory, and what are the implications for firmware updates?
No, the R5F1037AANA#25 does not include data flash memory - unlike R5F1027x variants which integrate 2 KB. This means firmware updates must rely solely on code flash reprogramming via the on-chip debug interface or bootloader, with no dedicated non-volatile parameter storage. Applications requiring field-updatable calibration tables or event logs should select R5F1027AANA#25 instead of R5F1037AANA#25.
What serial communication interfaces are supported by the R5F1037AANA#25, and how do they differ from R5F1027x?
The R5F1037AANA#25 supports exactly one UART channel (UART0), with no simplified SPI (CSI), simplified I²C, or full I²C interfaces - a deliberate reduction from R5F1027x's dual CSI and dual simplified I²C channels. This simplifies PCB routing and reduces software stack complexity for point-to-point host communication, making R5F1037AANA#25 ideal for applications where only basic command/response telemetry is required.
What is the temperature grade and packaging specification of the R5F1037AANA#25?
The R5F1037AANA#25 is specified for consumer-grade operation from -40°C to +85°C (A-suffix) and housed in a 24-pin HWQFN package (4 × 4 mm, 0.5-mm pitch) with exposed thermal pad. The #25 suffix denotes tray packaging per Renesas standard - compatible with automated SMT placement and reflow profiles defined in JEDEC J-STD-020 for moisture sensitivity level 3.
How does the R5F1037AANA#25 handle analog inputs and reference voltages?
The R5F1037AANA#25 integrates an 8-channel, 10-bit A/D converter with dedicated AVREFP and AVREFM pins (P20 and P21), supporting both single-ended and differential measurement modes. It includes an internal 1.45 V reference and on-die temperature sensor - enabling accurate ratiometric sensing of resistive sensors or thermistors without external voltage references, all within the R5F1037AANA#25's 1 KB RAM constraint.
R5F1037AANA#25 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 24-WFQFN Exposed Pad
- Series:
- RL78/G12
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- 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:
R5F1037AANA#25 FAQ
1.How can I place an order for R5F1037AANA#25 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F1037AANA#25 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 R5F1037AANA#25 reliable?
The price and inventory of R5F1037AANA#25 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F1037AANA#25 is usually 5 days.
3.What payment methods are accepted for R5F1037AANA#25?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F1037AANA#25 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F1037AANA#25?
R5F1037AANA#25 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F1037AANA#25 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 R5F1037AANA#25?
For technical support, including R5F1037AANA#25 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F1037AANA#25 requirements.
6.How does Aetrix verify that R5F1037AANA#25 is sourced from the original manufacturer or authorized distributors?
All R5F1037AANA#25 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 R5F1037AANA#25 meets industry standards.
7.What is the process for return or replacement of R5F1037AANA#25?
All R5F1037AANA#25 units undergo pre-shipment inspection (PSI). If there is an issue with R5F1037AANA#25, 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 R5F1037AANA#25 part is unused and in its original packaging.
Return procedure for R5F1037AANA#25:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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