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Renesas R5F1057AANA#W0
- Part No.:
- R5F1057AANA#W0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
R5F1057AANA#W0.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 24HWQFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
R5F1057AANA#W0 from Renesas Electronics is a 24-pin HWQFN-packaged 16-bit RL78/G11 microcontroller designed for ultra-low-power general-purpose embedded control. It integrates 16 KB code flash, 2 KB data flash, 1.5 KB RAM, 11-channel 10-bit ADC, dual comparators, PGA, dual 8-bit DACs, four CSI interfaces, two UARTs, four simplified I²C channels, and operates from 1.6 V to 5.5 V across -40°C to +85°C ambient.
For engineers reviewing the R5F1057AANA#W0 datasheet, R5F1057AANA#W0 pinout, R5F1057AANA#W0 application, or R5F1057AANA#W0 equivalent, this page delivers verified technical context, package-validated pin functions, real-world use cases in battery-powered sensing and industrial HMI, and two confirmed alternative parts with documented functional and packaging differences.
Technical Context
The R5F1057AANA#W0 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and selectable instruction execution time (0.04167 μs at 24 MHz high-speed on-chip oscillator). It supports true low-power operation: 58.3 μA/MHz active current and 0.64 μA in LVD-only mode.
Its peripheral set includes a 4-channel TAU timer array, 12-bit interval timer, watchdog timer, event link controller (18 event sources), data transfer controller (24 activation sources), and key interrupt support for up to 8 keys - all mapped to its 21 GPIO pins in the 4×4 mm HWQFN package with exposed die pad.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and multiply/divide/accumulate instructions |
| Flash / RAM | 16 KB code flash (1 KB block size) + 2 KB data flash (1M rewrite cycles) + 1.5 KB SRAM |
| ADC / DAC | 11-channel 10-bit ADC (VDD-referenced, internal 1.45 V ref & temp sensor); dual 8-bit DACs (0–VDD output) |
| Timers | 4-channel 16-bit TAU timer, 1-channel 12-bit interval timer, 2-channel 8-bit interval timer, 1-channel watchdog |
| Serial Interfaces | 4 × CSI (SPI-like), 2 × UART, 4 × simplified I²C, 2 × multimaster I²C, 1 × SSI |
| Power & Temp | 1.6–5.5 V supply; -40°C to +85°C operating range; HALT/STOP/SNOOZE low-power modes |
| Package | HWQFN-24 (4 mm × 4 mm, 0.5 mm pitch) with exposed thermal pad; pin-compatible with R5F1057AGNA |
Pinout & Package
24-pin HWQFN (4 × 4 mm, 0.5 mm pitch) with exposed die pad connected to VSS per datasheet recommendation. REGC requires 0.47–1 μF capacitor to VSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P125 | RESET / INTP9 | Active-low reset input with external interrupt capability; internal POR/LVD reset source |
| P122 / X2 / EXCLK | Crystal input / external clock | Accepts ceramic/crystal resonator (1–20 MHz) or external clock signal for main system clock |
| P20–P23 | ANI0–ANI3 / AVREFP / AVREFM / ANO1 / PGAI / PGAGND | Analog input group with dedicated reference voltage pins and analog output/DAC channel 1 |
| P30–P33 | ANI20–ANI21 / KR0–KR1 / TxD0/RxD0 / SCK11/SCL11 / SDAA0 | Multiplexed analog, key return, UART0, I²C1, and serial data interface pins |
| P51–P56 | KR5–KR7 / SI00/SO00 / SDA00/SCL00 / INTP6–INTP11 | Key return inputs, SPI0 data/clock, I²C0 bus, and extended external interrupt sources |
| VDD / VSS / EVDD / REGC | Power / ground / analog supply / regulator cap | Dual power domains (VDD/EVDD); REGC stabilizes internal LDO; EVDD absent in ≤24-pin variants |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 58.3 μA/MHz active current; 0.64 μA in LVD-only mode enables multi-year battery life in sensing nodes |
| On-chip debug & self-programming | Integrated on-chip debug with boot swap and flash shield window for secure firmware updates in field |
| Flexible clock system | High-speed on-chip oscillator (±1.0% accuracy, 1–24 MHz), middle-speed (4 MHz), and low-speed (15 kHz) options |
| Hardware-accelerated peripherals | Data transfer controller (DTC) with chain transfer and 24 activation sources reduces CPU load during data movement |
| Robust analog front-end | 11-channel ADC with internal temperature sensor and 1.45 V reference; dual comparators with window mode |
| Multi-protocol serial connectivity | Four independent CSI modules, two full UARTs, and four simplified I²C channels enable mixed-sensor bus topologies |
Applications
| Smart Home Sensor Node | Industrial HMI Panel |
|---|---|
|
Use Scenario: Battery-powered temperature/humidity/occupancy sensor with BLE gateway interface. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling, key scan, buzzer feedback, and UART-to-BLE bridge timing. Use Value: 0.64 μA STOP mode extends 2-AA battery life beyond 5 years; integrated LVD prevents brownout resets during voltage sag. |
Use Scenario: Touchless control panel for HVAC or lighting with capacitive touch and LED indicators. IC Role / Device Role / Timing Role: Real-time coordinator of key interrupt scanning, PWM-driven LED dimming, and UART command parsing. Use Value: 8-key interrupt support and hardware DTC offload enable <100 μs response to button press without CPU polling. |
| Portable Medical Monitor | Energy Meter Front-End |
|
Use Scenario: Handheld pulse oximeter with analog front-end, display driver, and USB charging detection. IC Role / Device Role / Timing Role: Signal conditioner for photodiode ADC, DAC-driven reference bias, and comparator-based saturation detection. Use Value: Integrated PGA and dual comparators eliminate need for external op-amps; 10-bit ADC resolves SpO₂ signal variations <0.5%. |
Use Scenario: DIN-rail energy meter with current transformer interface, LCD driver, and RS-485 communication. IC Role / Device Role / Timing Role: Isolated analog acquisition engine with 11-channel ADC for multi-phase voltage/current sampling. Use Value: Simultaneous sampling across 11 channels enables cycle-synchronized RMS calculation; 2 KB data flash stores calibration coefficients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F1057AGNA#U0 | Same 24-pin HWQFN package and peripherals, but rated for -40°C to +105°C industrial operation | Required for applications exceeding +85°C ambient (e.g., motor drive enclosures, outdoor utility meters) | Select R5F1057AGNA#U0 when extended temperature range or higher reliability screening is mandated |
| R5F1056AASM#10 | 20-pin TSSOP package; reduced pin count (17 GPIO), 10-channel ADC, no EVDD pin, same core/peripherals | Suitable for space-constrained designs where fewer analog inputs or key returns are needed | Choose R5F1056AASM#10 for cost-sensitive, lower-I/O consumer devices with PCB area constraints |
Compared with R5F1057AANA#W0, R5F1057AGNA#U0 provides identical functionality with extended temperature rating, while R5F1056AASM#10 trades 4 GPIOs and 1 ADC channel for smaller footprint and lower unit cost - both require board layout revision due to different packages.
Availability
R5F1057AANA#W0 is available at Aetrix Electronics and suitable for smart home sensor nodes, industrial HMI panels, portable medical monitors, and energy meter front-ends requiring stable component supply and long-term production continuity.
Supply support for R5F1057AANA#W0 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 delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G11 product line targets cost-sensitive, ultra-low-power general-purpose embedded control applications - emphasizing energy efficiency, integrated analog peripherals, and rapid development with scalable pin-compatible variants.
FAQ
What is the maximum operating frequency of the R5F1057AANA#W0 using its internal oscillator?
The R5F1057AANA#W0 supports a maximum high-speed on-chip oscillator frequency of 24 MHz with ±1.0% accuracy across 1.8–5.5 V supply and -40°C to +85°C ambient. This enables 33 DMIPS performance and a minimum instruction execution time of 0.04167 μs. The R5F1057AANA#W0 also offers selectable middle-speed (up to 4 MHz) and low-speed (15 kHz) on-chip oscillators for ultra-low-power modes.
Does the R5F1057AANA#W0 support simultaneous analog-to-digital conversion on multiple channels?
Yes, the R5F1057AANA#W0's 10-bit ADC supports sequential conversion across up to 11 analog input channels (ANI0–ANI3, ANI16–ANI22) with software-triggered or timer-triggered start. While it does not perform true simultaneous sampling, its fast conversion time (≤1.2 μs per channel) and built-in scan mode allow effective multi-channel acquisition within tight timing windows - critical for R5F1057AANA#W0-based energy metering and sensor fusion applications.
How is the exposed thermal pad on the R5F1057AANA#W0 HWQFN package intended to be used?
The exposed die pad on the R5F1057AANA#W0's 24-pin HWQFN package must be soldered to a PCB copper pour connected to VSS for optimal thermal dissipation and electrical stability. Renesas explicitly recommends this connection in the datasheet to maintain junction temperature within specification under sustained operation. Failure to connect the pad may result in thermal throttling or parametric drift - a design requirement unique to the R5F1057AANA#W0's compact 4×4 mm footprint.
Can the R5F1057AANA#W0 execute code while rewriting its data flash memory?
Yes, the R5F1057AANA#W0 supports background operation (BGO) for data flash memory: instructions can be fetched and executed from code flash while data flash is being rewritten. This enables seamless firmware updates and parameter storage without halting real-time tasks - a key capability confirmed in the R5F1057AANA#W0 datasheet section 1.1 "Data flash memory" and leveraged in its bootloader implementations.
What are the key differences between the R5F1057AANA#W0 and R5F1057AGNA#U0?
The R5F1057AANA#W0 and R5F1057AGNA#U0 share identical pinout, peripherals, memory map, and electrical specifications except for operating temperature range and packaging specification. The R5F1057AANA#W0 is rated for -40°C to +85°C (consumer grade) and shipped in embossed tape (#W0), while the R5F1057AGNA#U0 is rated for -40°C to +105°C (industrial grade) and shipped in tray (#U0). Both use the same HWQFN-24 package.
R5F1057AANA#W0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 24-WFQFN Exposed Pad
- Series:
- RL78/G11
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 24MHz
- Connectivity:
- CSI, I2C, UART/USART
- Peripherals:
- LVD, POR, WDT
- Number of I/O:
- 21
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 1.5K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 11x10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F1057AANA#W0 FAQ
1.How can I place an order for R5F1057AANA#W0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F1057AANA#W0 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 R5F1057AANA#W0 reliable?
The price and inventory of R5F1057AANA#W0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F1057AANA#W0 is usually 5 days.
3.What payment methods are accepted for R5F1057AANA#W0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F1057AANA#W0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F1057AANA#W0?
R5F1057AANA#W0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F1057AANA#W0 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 R5F1057AANA#W0?
For technical support, including R5F1057AANA#W0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F1057AANA#W0 requirements.
6.How does Aetrix verify that R5F1057AANA#W0 is sourced from the original manufacturer or authorized distributors?
All R5F1057AANA#W0 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 R5F1057AANA#W0 meets industry standards.
7.What is the process for return or replacement of R5F1057AANA#W0?
All R5F1057AANA#W0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F1057AANA#W0, 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 R5F1057AANA#W0 part is unused and in its original packaging.
Return procedure for R5F1057AANA#W0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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