My Inquiry
My Account
Renesas R5F1037AANA#U0
- Part No.:
- R5F1037AANA#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
R5F1037AANA#U0.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 24HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,531
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F1037AANA#U0 from Renesas Electronics is a 24-pin HWQFN-packaged RL78/G12 16-bit microcontroller designed for ultra-low-power embedded control in consumer-grade applications (–40°C to +85°C). It integrates 12 KB code flash, 1 KB RAM, 10-bit 11-channel ADC, 4-channel 16-bit timer, UART, CSI, and high-speed on-chip oscillator (up to 24 MHz) with ±5.0% accuracy. It delivers 31 DMIPS at 24 MHz and operates from 1.8 V to 5.5 V.
For engineers reviewing the R5F1037AANA#U0 datasheet, R5F1037AANA#U0 pinout, R5F1037AANA#U0 application, or R5F1037AANA#U0 equivalent, key selection considerations include its 24-pin HWQFN footprint, absence of data flash memory, lack of DMA and safety functions (CRC, RAM/SFR guard), and reduced serial interface count versus R5F1027x variants - all critical for cost-sensitive, battery-powered sensor and appliance control designs.
Technical Context
The R5F1037AANA#U0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting 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 12 KB code flash organized in 1 KB blocks and no data flash - distinguishing it from R5F1027x family members.
Peripheral configuration includes one UART channel, one simplified SPI (CSI) channel, zero simplified I²C channels, and four 16-bit timer output channels (with up to three PWM outputs). It lacks DMA controller, CRC unit, and RAM/SFR guard features present in R5F1027x, confirming its role as a streamlined, entry-level variant within the RL78/G12 family for non-safety-critical applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time control with low gate count and power efficiency. |
| Operating Voltage | 1.8 V to 5.5 V; supports direct interfacing with 1.8/2.5/3.3/5 V logic without level shifters. |
| Flash/RAM | 12 KB code flash (1 KB blocks), 1 KB RAM; sufficient for compact firmware with limited variable storage. |
| ADC | 10-bit resolution, 11 input channels, internal 1.45 V reference; suitable for analog sensor monitoring in home appliances. |
| Timers | 4-channel 16-bit TAU, 1-channel 12-bit interval timer, 1-window watchdog; provides flexible timing, PWM generation, and system supervision. |
| Oscillator Accuracy | ±5.0% over –40°C to +85°C; adequate for non-precision timing but requires external crystal for UART baud rate stability. |
| Serial Interfaces | 1 UART, 1 CSI (SPI-compatible), 0 simplified I²C; limits multi-protocol peripheral connectivity compared to higher-tier variants. |
Pinout & Package
Package: 24-pin HWQFN (4 × 4 mm, 0.5-mm pitch), exposed die pad recommended to be connected to VSS for thermal and electrical stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P03 | Port 0 I/O | General-purpose CMOS I/O with N-ch open-drain option; P02/P03 support SCL01/SDA01 remapping via PIOR. |
| P10–P14 | Port 1 I/O | Primary digital I/O bank; P10–P12 host UART0 (RxD0/TxD0), CSI00 (SCK00/SI00/SO00), and SCL00/SDA00. |
| P20–P23 | Analog Input / Reference | ANI0–ANI3 with AVREFP/AVREFM; supports single-ended or differential ADC measurements with internal reference. |
| P40–P42 | Port 4 I/O | P40 = TOOL0 (debug interface); P41/P42 = ANI22/ANI21 with CSI01/SCL01 remap capability. |
| P60/P61 | I²C Interface | SCLA0/SDAA0 pins; support standard-mode I²C communication (not simplified I²C) - only I²C bus available on this variant. |
| P121/P122 | Crystal Oscillator | X1/X2 inputs for external crystal; required for precise timing when on-chip oscillator accuracy is insufficient. |
| P125 | Reset Input | Active-low RESET pin with internal pull-up; accepts external reset assertion or can be driven by power-on-reset circuit. |
| VDD/VSS | Power Supply | Single 1.8–5.5 V supply; VSS must connect to exposed die pad for optimal thermal performance and noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power consumption | 63 μA/MHz active current enables multi-year battery life in wireless sensors and portable devices. |
| Halt/Stop/Snooze low-power modes | Enables sub-μA sleep states with fast wake-up (<1 μs from Halt), ideal for intermittent sensing applications. |
| On-chip debug function | Integrated E1/E2 emulator interface eliminates need for external debug hardware during development. |
| Self-programming capability | Allows firmware updates in-system via code flash shield window; no external programmer required post-deployment. |
| Different-potential interface support | I/O pins tolerate 1.8/2.5/3.3 V logic levels, simplifying integration with mixed-voltage subsystems. |
Applications
| Home Appliance Control | Industrial Sensor Node |
|---|---|
Use Scenario: Microcontroller in smart thermostat managing temperature sensing, display driving, and HVAC relay control. IC Role / Device Role / Timing Role: Central control unit executing closed-loop PID algorithms, reading 10-bit ADC data from thermistors, and generating PWM for fan speed regulation. Use Value: 12 KB flash accommodates robust control firmware; 11-channel ADC supports multi-zone sensing; ultra-low power extends battery backup runtime during AC loss. | Use Scenario: Standalone environmental monitor logging temperature, humidity, and CO₂ via digital and analog sensors in factory settings. IC Role / Device Role / Timing Role: Data acquisition engine sampling analog sensors at 100 Hz, buffering readings in 1 KB RAM, and transmitting via UART to gateway. Use Value: 1.8–5.5 V operation ensures compatibility with diverse sensor supplies; ±5.0% oscillator accuracy meets UART timing tolerance at 9600 bps. |
| Consumer IoT Remote | White Goods Motor Control |
Use Scenario: IR remote control with button matrix, LED feedback, and RF transmission module interface. IC Role / Device Role / Timing Role: Input scanner for 10-key matrix using key interrupt function, buzzer output for user feedback, and UART to configure RF transceiver. Use Value: On-chip buzzer/clock output eliminates external driver; N-ch open-drain I/O interfaces directly with IR LED; 24-pin HWQFN enables compact PCB layout. | Use Scenario: Brushless DC motor commutation controller in washing machine drum drive. IC Role / Device Role / Timing Role: Real-time commutation sequencer using 4-channel TAU for six-step timing, ADC for current sensing, and PWM for gate driver modulation. Use Value: 31 DMIPS at 24 MHz provides margin for field-oriented control math; 10-bit ADC resolves motor phase current with 0.5% linearity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F1027AANA#U0 | Includes 2 KB data flash, DMA controller, CRC unit, RAM/SFR guard, and ±1.0% oscillator accuracy. | Required for firmware-over-the-air updates, safety-certified designs, or high-accuracy timing-critical UART/I²C. | Select R5F1027AANA#U0 when data logging, functional safety compliance, or tighter clock tolerance is mandatory. |
| R5F1037ADNA#U0 | Identical silicon but rated for industrial temperature range (–40°C to +85°C with D-grade qualification). | Needed for deployment in environments with extended thermal cycling or higher reliability requirements. | Choose R5F1037ADNA#U0 for industrial equipment where A-grade consumer qualification is insufficient. |
Compared with R5F1027AANA#U0, the R5F1037AANA#U0 reduces BOM cost by omitting data flash and safety peripherals while maintaining identical package and core performance; versus R5F1037ADNA#U0, it trades industrial qualification for lower unit price in consumer-grade applications.
Availability
R5F1037AANA#U0 is available at Aetrix Electronics and suitable for home appliance control, consumer IoT remotes, industrial sensor nodes, and white goods motor control requiring stable component supply across production lifecycles.
Supply support for R5F1037AANA#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 global semiconductor leader headquartered in Japan, specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G12 product line targets cost-sensitive, ultra-low-power general-purpose embedded applications - emphasizing energy efficiency, small footprint, and rapid time-to-market for consumer electronics and industrial controls.
FAQ
What is the maximum operating frequency of the R5F1037AANA#U0?
The R5F1037AANA#U0 supports a maximum high-speed on-chip oscillator frequency of 24 MHz, delivering 31 DMIPS performance. External crystal operation is limited to 20 MHz in HS mode (VDD ≥ 2.7 V) or 16 MHz (VDD ≥ 2.4 V), per the RL78/G12 datasheet. The actual achievable frequency depends on VDD level and oscillator configuration.
Does the R5F1037AANA#U0 include data flash memory?
No, the R5F1037AANA#U0 does not include data flash memory. This is a defining distinction from the R5F1027x series, which integrates 2 KB of data flash. The R5F1037AANA#U0 relies solely on its 12 KB code flash for program storage and non-volatile parameter retention via software-managed flash sectors.
What are the key differences between R5F1037AANA#U0 and R5F1027AANA#U0?
The R5F1037AANA#U0 omits data flash (2 KB), DMA controller (2 channels), CRC unit, RAM guard, and SFR guard - features present in R5F1027AANA#U0. It also has reduced oscillator accuracy (±5.0% vs ±1.0%) and fewer serial interfaces (no simplified I²C, only 1 CSI channel). These differences position R5F1037AANA#U0 as a lower-cost, streamlined variant.
Which package type does the R5F1037AANA#U0 use?
The R5F1037AANA#U0 uses a 24-pin HWQFN package (4 × 4 mm, 0.5-mm pitch) with an exposed die pad. The Renesas part number suffix "NA" explicitly denotes this HWQFN variant, and the #U0 packaging code indicates tray packaging. Thermal design must connect the exposed pad to VSS for optimal performance.
Can the R5F1037AANA#U0 support I²C communication?
Yes, the R5F1037AANA#U0 supports standard-mode I²C communication via dedicated pins P60 (SCLA0) and P61 (SDAA0). However, it does not support simplified I²C (IIC00/IIC01) - a feature reserved for R5F1027x variants. Designers must use the full I²C peripheral, not the simplified version, for slave or master operation.
R5F1037AANA#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:
R5F1037AANA#U0 FAQ
1.How can I place an order for R5F1037AANA#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F1037AANA#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 R5F1037AANA#U0 reliable?
The price and inventory of R5F1037AANA#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F1037AANA#U0 is usually 5 days.
3.What payment methods are accepted for R5F1037AANA#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F1037AANA#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F1037AANA#U0?
R5F1037AANA#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F1037AANA#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 R5F1037AANA#U0?
For technical support, including R5F1037AANA#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F1037AANA#U0 requirements.
6.How does Aetrix verify that R5F1037AANA#U0 is sourced from the original manufacturer or authorized distributors?
All R5F1037AANA#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 R5F1037AANA#U0 meets industry standards.
7.What is the process for return or replacement of R5F1037AANA#U0?
All R5F1037AANA#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F1037AANA#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 R5F1037AANA#U0 part is unused and in its original packaging.
Return procedure for R5F1037AANA#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F1037AANA#U0 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
