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Renesas R5F1057AGNA#W0
- Part No.:
- R5F1057AGNA#W0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
R5F1057AGNA#W0.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 24HWQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,853
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Product details
Overview
R5F1057AGNA#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, and 1.5 KB RAM; operates from 1.6 V to 5.5 V; delivers 33 DMIPS at 24 MHz; and supports true low-power modes including STOP (0.64 μA) and HALT (58.3 μA/MHz), targeting battery-powered sensor nodes and industrial control interfaces.
For engineers reviewing the R5F1057AGNA#W0 datasheet, R5F1057AGNA#W0 pinout, R5F1057AGNA#W0 application, or R5F1057AGNA#W0 equivalent, this page provides verified technical context, validated pin functions, real-world use cases in industrial temperature sensing and motor control, and two confirmed alternative parts with documented functional and packaging differences.
Technical Context
The R5F1057AGNA#W0 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction execution time (0.04167 μs at 24 MHz high-speed on-chip oscillator). It features a 1 Mbyte address space, four 16-bit timer channels (TAU), dual UART, four CSI/SPI channels, four simplified I²C interfaces, and an 11-channel 10-bit A/D converter with internal reference and temperature sensor.
Power management includes on-chip POR, 14-level LVD with interrupt/reset selection, and three oscillator sources: high-speed on-chip (up to 24 MHz ±1.0%), middle-speed (4/2/1 MHz), and low-speed (15 kHz). The device supports background data flash rewriting (1M write cycles), event link controller (18 event inputs), and DTC with 24 activation sources - enabling deterministic peripheral coordination without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and multiply/divide/accumulate instructions |
| Operating Voltage | 1.6 V to 5.5 V - enables direct interface with 1.8 V, 2.5 V, 3.0 V, and 5 V logic domains |
| Flash Memory | 16 KB code flash (1 KB block size) + 2 KB data flash with background operation and 1M rewrite cycles |
| ADC | 10-bit resolution, 11 analog input channels, internal 1.45 V reference, and integrated temperature sensor |
| Low-Power Modes | STOP mode draws 0.64 μA (LVD only active); HALT mode consumes 58.3 μA/MHz - critical for battery life extension |
| Package & Pins | 24-pin HWQFN (4 × 4 mm, 0.50-mm pitch) with exposed die pad; 21 GPIO including 11 analog-capable pins |
| Peripherals | 2 UART, 4 CSI/SPI, 4 simplified I²C, 2 comparators, 1 PGA, 2 DAC outputs, ELC (18 events), DTC (24 sources) |
Pinout & Package
24-pin HWQFN package (4 × 4 mm, 0.50-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 |
|---|---|---|
| P00/P01 | Analog input / key return / serial I/O | Supports ANI16/ANI17, KR0/KR1, SI10/RxD1, SDA10 - enables multi-function pin reuse via PIOR registers |
| P20–P23 | Analog I/O group | ANI0–ANI3, AVREFP/AVREFM, PGAI/PGAGND, SO10/TxD1 - dedicated analog front-end with reference and PGA |
| P30–P33 | General-purpose I/O with serial & timer | ANI20–ANI21, KR0–KR1, TxD0/RxD0, SCK11/SCL11, TKBO0/TKBO1 - supports LIN-compliant UART0 and hardware timer KB outputs |
| P40 | Tool interface & serial clock | TOOL0, TO03, SCK10, VCOUT0/VCOUT1, INTFO - enables in-circuit debugging and comparator flag output |
| P51–P56 | Key return & serial I/O expansion | KR5–KR7, SI00/SO00, SDA00/SDA01, TOOLRXD/TOOLTXD - extends key matrix and dual SPI/I²C slave interfaces |
| VDD/VSS/REGC/EVDD | Power & regulation | VDD (1.6–5.5 V), VSS (ground), REGC (regulator bypass cap node), EVDD (separate 1.6–5.5 V supply for port 0/5 - present on 24-pin+ devices) |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.64 μA current draw with only LVD active - extends coin-cell battery life to years in wake-on-interrupt applications |
| Background data flash rewrite | Executes program code while rewriting 2 KB data flash - enables seamless firmware updates and parameter logging |
| Event Link Controller (ELC) | Routes 18 peripheral events (e.g., timer overflow, ADC end-of-conversion) directly to target peripherals without CPU ISR overhead |
| Hardware DTC with chain transfer | Automates memory-to-peripheral transfers across up to 24 sources - reduces CPU load by >70% in sensor data acquisition |
| Multi-voltage I/O capability | GPIOs tolerate 1.8 V, 2.5 V, and 3.0 V logic levels - eliminates level shifters when interfacing with mixed-supply sensors and transceivers |
Applications
| Industrial Temperature Monitoring | Smart Appliance Motor Control |
|---|---|
|
Use Scenario: Real-time ambient and component temperature tracking in HVAC controllers using on-chip temperature sensor and external thermistors. IC Role / Device Role / Timing Role: Central sensor hub acquiring 11-channel analog inputs, performing linearization via DOC, and transmitting alerts over UART/LIN. Use Value: Eliminates external ADC and voltage reference; 0.64 μA STOP mode enables monthly battery replacement interval in wireless sensor nodes. |
Use Scenario: Closed-loop speed and current control of BLDC motors in washing machines using hall-effect feedback and PWM generation. IC Role / Device Role / Timing Role: Real-time motor commutation controller generating precise 3-phase PWM via TAU timers and monitoring current sense via 10-bit ADC. Use Value: Integrated 24 MHz oscillator accuracy (±1.0%) ensures consistent PWM frequency; ELC synchronizes ADC sampling with commutation edges. |
| Energy Metering Interface | IoT Edge Node Sensor Aggregator |
|
Use Scenario: Isolated metering front-end collecting voltage/current waveforms and computing RMS, THD, and energy counters. IC Role / Device Role / Timing Role: High-precision analog acquisition engine with 10-bit ADC, PGA, and 1.45 V internal reference - calibrated against shunt resistor signals. Use Value: On-chip BCD correction accelerates kWh calculation; data flash stores calibration coefficients with 1M-cycle endurance for field recalibration. |
Use Scenario: Multi-sensor fusion node aggregating data from humidity, pressure, and motion sensors before edge processing and LoRaWAN transmission. IC Role / Device Role / Timing Role: Low-power coordinator managing I²C/SPI sensor reads, DTC-driven DMA transfers, and deep-sleep wake-up via key interrupt or timer. Use Value: 21 GPIO support 8-key matrix + 4 I²C + 2 SPI buses; HALT mode at 58.3 μA/MHz minimizes active power during sensor polling intervals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F1057AANA#W0 | Same RL78/G11 core, identical pinout and memory (16 KB flash/2 KB data flash/1.5 KB RAM), but rated for consumer temp range (-40 to +85°C) instead of industrial (-40 to +105°C) | Not qualified for extended-temperature industrial environments requiring >85°C ambient operation | Select R5F1057AANA#W0 only for cost-sensitive consumer designs operating within -40 to +85°C ambient |
| R5F1058AGLA#W0 | 25-pin WFLGA package (3 × 3 mm), adds one additional analog input (11 → 11 still, but different channel mapping), same flash/RAM/peripherals; no EVDD pin | Enables higher I/O density in space-constrained layouts; lacks separate EVDD rail - limits mixed-voltage I/O flexibility vs. R5F1057AGNA#W0 | Choose R5F1058AGLA#W0 when PCB area is critical and EVDD decoupling is unnecessary; verify pin compatibility for existing layout reuse |
Compared with R5F1057AGNA#W0, R5F1057AANA#W0 sacrifices industrial temperature rating for lower cost, while R5F1058AGLA#W0 trades EVDD-supported multi-voltage I/O for smaller footprint - both retain identical core performance and peripheral set.
Availability
R5F1057AGNA#W0 is available at Aetrix Electronics and suitable for industrial temperature monitoring, smart appliance motor control, energy metering interfaces, and IoT edge node sensor aggregation requiring stable component supply across automotive-grade lifecycle planning.
Supply support for R5F1057AGNA#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 Corporation is a global semiconductor leader specializing in microcontrollers, analog, and power management ICs for industrial, automotive, and IoT applications.
The RL78/G11 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and industrial control systems requiring robust analog integration and long-term reliability.
FAQ
What is the maximum operating frequency and accuracy of the on-chip oscillator in R5F1057AGNA#W0?
The R5F1057AGNA#W0 supports a high-speed on-chip oscillator up to 24 MHz with ±1.0% accuracy across VDD = 1.8–5.5 V and TA = −20 to +85°C. This oscillator serves as the default system clock after reset and enables 33 DMIPS performance without external crystals - reducing BOM cost and board space in timing-tolerant applications.
Does R5F1057AGNA#W0 support simultaneous operation of multiple serial interfaces?
Yes, R5F1057AGNA#W0 natively supports concurrent operation of two UARTs, four CSI/SPI channels, and four simplified I²C interfaces. Its ELC and DTC allow autonomous handshaking and data movement between these peripherals - for example, triggering ADC conversions on UART receive completion and storing results directly to RAM via DTC without CPU involvement.
How does the data flash memory in R5F1057AGNA#W0 differ from standard code flash in terms of usage and endurance?
R5F1057AGNA#W0 includes 2 KB of dedicated data flash memory rated for 1,000,000 write cycles (typical) and supporting background operation - meaning code execution continues from main flash while data flash is rewritten. This enables reliable nonvolatile storage of calibration data, device configuration, or usage logs without halting application execution.
What power-saving modes are available in R5F1057AGNA#W0, and what is the lowest achievable current draw?
R5F1057AGNA#W0 offers HALT, STOP, and SNOOZE modes. STOP mode achieves 0.64 μA (typical) with only the low-voltage detector (LVD) active - the lowest current state suitable for wake-on-interrupt applications. HALT mode draws 58.3 μA/MHz, balancing responsiveness and efficiency for periodic sensor polling tasks.
Can R5F1057AGNA#W0 directly interface with 1.8 V I/O devices without level shifters?
Yes, R5F1057AGNA#W0 supports different-potential interface operation: its GPIOs (including P00, P01, P30–P33, P40, P51–P56) tolerate 1.8 V, 2.5 V, and 3.0 V logic levels when powered from VDD = 1.6–5.5 V. This eliminates external level shifters when connecting to common low-voltage sensors and communication ICs.
R5F1057AGNA#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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F1057AGNA#W0 FAQ
1.How can I place an order for R5F1057AGNA#W0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F1057AGNA#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 R5F1057AGNA#W0 reliable?
The price and inventory of R5F1057AGNA#W0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F1057AGNA#W0 is usually 5 days.
3.What payment methods are accepted for R5F1057AGNA#W0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F1057AGNA#W0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F1057AGNA#W0?
R5F1057AGNA#W0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F1057AGNA#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 R5F1057AGNA#W0?
For technical support, including R5F1057AGNA#W0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F1057AGNA#W0 requirements.
6.How does Aetrix verify that R5F1057AGNA#W0 is sourced from the original manufacturer or authorized distributors?
All R5F1057AGNA#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 R5F1057AGNA#W0 meets industry standards.
7.What is the process for return or replacement of R5F1057AGNA#W0?
All R5F1057AGNA#W0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F1057AGNA#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 R5F1057AGNA#W0 part is unused and in its original packaging.
Return procedure for R5F1057AGNA#W0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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