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Renesas R5F1057AANA#U0
- Part No.:
- R5F1057AANA#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
R5F1057AANA#U0.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 24HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,040
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Product details
Overview
R5F1057AANA#U0 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, 2-channel 8-bit DAC, and supports 24 MHz operation delivering 33 DMIPS - deployed in battery-powered sensor nodes, smart home controllers, and industrial I/O modules.
For engineers reviewing the R5F1057AANA#U0 datasheet, R5F1057AANA#U0 pinout, R5F1057AANA#U0 application, or R5F1057AANA#U0 equivalent, key selection criteria include its 1.6–5.5 V wide supply range, STOP mode current of 0.64 μA, 24-pin 4×4 mm HWQFN package with exposed die pad, and full peripheral set including four CSI, two UART, and four simplified I²C channels.
Technical Context
The R5F1057AANA#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 (±1.0% accuracy). Its power management includes HALT, STOP, and SNOOZE modes, with LVD interrupt/reset selectable across 14 voltage levels.
Peripheral integration centers on event-driven operation: the Event Link Controller (ELC) supports 18 configurable event signals linked to peripherals, while the Data Transfer Controller (DTC) handles up to 24 activation sources across normal, repeat, and block transfer modes - eliminating CPU overhead for sensor data acquisition and actuator control sequences.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time response in motor control and timing-critical I/O handling. |
| Max Operating Frequency | 24 MHz (high-speed on-chip oscillator); delivers 33 DMIPS performance for mid-complexity firmware without external clock source. |
| Memory | 16 KB code flash + 2 KB data flash + 1.5 KB RAM; supports background rewriting of data flash during program execution (BGO). |
| ADC | 10-bit resolution, 11 analog inputs (ANI0–ANI22); includes internal 1.45 V reference and temperature sensor for self-calibration. |
| DAC & Comparator | 2-channel 8-bit DAC (0–VDD output); dual comparators with window mode and PGA input for precision analog signal conditioning. |
| Low-Power Modes | STOP mode draws 0.64 μA (LVD only active); HALT mode consumes 58.3 μA/MHz - critical for multi-year battery life in IoT endpoints. |
| Package | HWQFN-24 (4 × 4 mm, 0.5 mm pitch) with exposed die pad; enables compact PCB layout and efficient thermal dissipation in space-constrained designs. |
Pinout & Package
Package: HWQFN-24 (4 × 4 mm, 0.5 mm pitch), RoHS-compliant, with exposed die pad recommended to be connected to VSS for thermal and electrical stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00/P01 | Analog input / Key return / UART/SPI/I²C | Multi-function pins supporting ANI16/ANI17, KR0/KR1, and serial interfaces - enable flexible peripheral mapping via PIOR registers. |
| P20–P23 | Analog I/O / Reference / PGA | Host AVREFP/AVREFM, ANI0–ANI3, PGAI, and ANO1; support precision A/D conversion and programmable gain amplification. |
| P30–P33 | General I/O / UART / SPI / I²C / Timer | Provide TxD0/RxD0, SCK11/SCL11/SDA11, TO00/TI00, and KR0–KR2 - essential for dual UART, I²C master/slave, and keypad scanning. |
| P40 | Tool interface / Clock output / Interrupt flag | Supports TOOL0 programming, PCLBUZ0 clock/buzzer generation, VCOUT0 comparator output, and INTFO signaling - simplifies debug and system monitoring. |
| P51–P56 | Key return / Serial I/O / Timer / Analog input | Deliver KR3–KR7, SO01/SI01, TO02/TI02, and ANI22 - extend key matrix size and add third serial channel (CSI01) and timer resources. |
| P121/P122/P125 | Oscillator / External clock / Reset | X1/X2 crystal inputs, EXCLK external clock, and RESET pin - allow flexible clock sourcing and robust system reset behavior. |
| P137 | External interrupt / SSI chip select | INTP0 and SSI00 functions support wake-up from STOP mode and daisy-chain SPI peripheral control. |
| VDD/VSS/REGC/EVDD | Power / Ground / Regulator capacitor | VDD (1.6–5.5 V), VSS ground, REGC requires 0.47–1 μF capacitor to VSS; EVDD absent - all power routed through VDD per 24-pin configuration. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.64 μA with LVD active - enables decade-scale battery operation in wireless sensor transmitters. |
| Background data flash rewrite | 1,000,000 write cycles with BGO; allows firmware updates and parameter storage without halting application code. |
| Event Link Controller (ELC) | 18 event sources mapped to peripherals without CPU intervention - reduces latency in closed-loop control systems. |
| Hardware CRC and DOC units | On-chip CRC generator and Data Operation Circuit accelerate checksums and 16-bit arithmetic - offloads CPU in communication stacks. |
| Configurable I/O redirection | Peripheral I/O Redirection Registers (PIOR0–PIOR3) remap functions like UART, SPI, and timers to alternate pins - improves PCB routing flexibility. |
Applications
| Smart Home Sensor Hub | Industrial I/O Module |
|---|---|
|
Use Scenario: Central node aggregating temperature, humidity, and motion data from multiple sensors, transmitting via UART-to-LoRa bridge. IC Role / Device Role / Timing Role: Main controller executing sensor fusion, low-power scheduling, and serial protocol translation. Use Value: 11-channel ADC reads multiple analog sensors simultaneously; STOP mode extends coin-cell battery life beyond 5 years. |
Use Scenario: DIN-rail mounted module converting 4–20 mA field signals to Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Signal conditioner, isolation interface manager, and protocol stack executor. Use Value: Dual comparators monitor overcurrent thresholds; 2-channel DAC generates precise 4–20 mA reference currents. |
| Wireless Remote Control | Appliance Motor Driver Interface |
|
Use Scenario: IR/RF remote with capacitive touch keys, buzzer feedback, and battery voltage monitoring. IC Role / Device Role / Timing Role: Keypad scanner, audio tone generator, and system supervisor. Use Value: 8-key interrupt (KR0–KR7) enables instant wake-from-STOP; PCLBUZ0 outputs 2.44–15 kHz tones without timer resource usage. |
Use Scenario: Fan speed controller using PWM output, tachometer feedback, and thermal shutdown protection. IC Role / Device Role / Timing Role: Closed-loop speed regulator with analog sensing and digital actuation. Use Value: TAU 16-bit timers generate precise PWM; PGA amplifies low-level tach pulses; LVD triggers safe shutdown at 1.67 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F1058AALA#U0 | 25-pin WFLGA (3×3 mm), adds EVDD pin and one extra analog input (ANI23), same memory/performance. | Required when board design needs separate analog/digital power domains or additional I/O in ultra-compact footprint. | Select for designs requiring independent EVDD biasing or higher I/O density in <9 mm² area. |
| R5F1056AASM#10 | 20-pin TSSOP, reduced analog inputs (10 channels), no KR5–KR7, lower pin count and cost. | Suitable for simpler sensor nodes or controls with fewer external interfaces and no keypad matrix. | Choose when 20-pin layout suffices and KR expansion or 11th ADC channel is unnecessary. |
Compared with R5F1057AANA#U0, R5F1058AALA#U0 provides enhanced analog domain separation but requires WFLGA rework, while R5F1056AASM#10 trades I/O count and key scan capability for lower assembly cost and legacy TSSOP compatibility.
Availability
R5F1057AANA#U0 is available at Aetrix Electronics and suitable for smart home sensor hubs, industrial I/O modules, wireless remote controls, appliance motor driver interfaces, and battery-powered telemetry systems requiring stable component supply across production lifecycles.
Supply support for R5F1057AANA#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, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G11 product line delivers true low-power embedded control with integrated analog peripherals and flexible clocking - engineered for cost-sensitive, battery-operated, and industrial-grade applications demanding reliability and long-term supply.
FAQ
What is the maximum operating frequency and associated performance of the R5F1057AANA#U0?
The R5F1057AANA#U0 operates at up to 24 MHz using its high-speed on-chip oscillator, achieving 33 DMIPS performance. This frequency is supported across the full 1.6–5.5 V supply range, with oscillator accuracy of ±1.0% at −20 to +85°C. The R5F1057AANA#U0 maintains this performance while consuming only 58.3 μA per MHz in active mode - making it suitable for compute-intensive yet power-constrained applications such as sensor fusion and protocol bridging.
Does the R5F1057AANA#U0 support background data flash rewriting during program execution?
Yes, the R5F1057AANA#U0 supports Background Operation (BGO) for data flash memory, allowing instructions to execute from program memory while rewriting the 2 KB data flash. This feature enables seamless firmware updates, logging, or parameter storage without interrupting real-time tasks. The R5F1057AANA#U0 guarantees 1,000,000 rewrite cycles at VDD = 1.8–5.5 V, with dedicated flash library support starting at RAM address FF900H.
How many analog input channels does the R5F1057AANA#U0 provide, and what reference options are available?
The R5F1057AANA#U0 provides 11 analog input channels (ANI0–ANI22), with dedicated AVREFP and AVREFM pins for external reference voltage sourcing. It also includes an internal 1.45 V reference and an integrated temperature sensor for calibration. The 10-bit A/D converter operates across the full 1.6–5.5 V supply range, supporting simultaneous sampling and conversion trigger via ELC-linked events - critical for synchronized multi-sensor acquisition in the R5F1057AANA#U0.
What low-power modes are available on the R5F1057AANA#U0, and what is the lowest achievable current draw?
The R5F1057AANA#U0 offers HALT, STOP, and SNOOZE modes. In STOP mode with only the Low-Voltage Detector (LVD) active, it draws just 0.64 μA - the lowest current state. HALT mode consumes 58.3 μA/MHz, and SNOOZE enables selective peripheral operation during sleep. All modes retain RAM content and support wake-up via external interrupts, timer events, or comparator outputs - ensuring rapid resumption in the R5F1057AANA#U0 without full system restart.
Can the R5F1057AANA#U0 drive standard 4–20 mA current loops directly, and if so, how?
The R5F1057AANA#U0 cannot drive 4–20 mA loops directly but provides the necessary analog building blocks: its 2-channel 8-bit DAC outputs 0–VDD voltage, which - when combined with an external op-amp and transistor current sink - forms a precision current source. Paired with its dual comparators for overcurrent detection and 11-channel ADC for loop diagnostics, the R5F1057AANA#U0 serves as the intelligent controller in industrial 4–20 mA transmitter designs.
R5F1057AANA#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 24-WFQFN Exposed Pad
- Series:
- RL78/G11
- 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, 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#U0 FAQ
1.How can I place an order for R5F1057AANA#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F1057AANA#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 R5F1057AANA#U0 reliable?
The price and inventory of R5F1057AANA#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F1057AANA#U0 is usually 5 days.
3.What payment methods are accepted for R5F1057AANA#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F1057AANA#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F1057AANA#U0?
R5F1057AANA#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F1057AANA#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 R5F1057AANA#U0?
For technical support, including R5F1057AANA#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F1057AANA#U0 requirements.
6.How does Aetrix verify that R5F1057AANA#U0 is sourced from the original manufacturer or authorized distributors?
All R5F1057AANA#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 R5F1057AANA#U0 meets industry standards.
7.What is the process for return or replacement of R5F1057AANA#U0?
All R5F1057AANA#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F1057AANA#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 R5F1057AANA#U0 part is unused and in its original packaging.
Return procedure for R5F1057AANA#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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