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Renesas R5F102AADSP#50
- Part No.:
- R5F102AADSP#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 30-LSSOP (0.240", 6.10mm Width)
- Datasheet:
-
R5F102AADSP#50.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 30LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,504
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Product details
Overview
R5F102AADSP#50 from Renesas Electronics is a 30-pin LSSOP packaged 16-bit RL78/G12 microcontroller designed for industrial embedded control. It integrates 16 KB code flash, 2 KB data flash, 2 KB RAM, 8-channel 10-bit A/D converter, and dual-channel DMA - operating across 1.8–5.5 V at –40°C to +85°C for low-power sensor interface and motor control applications.
For engineers reviewing the R5F102AADSP#50 datasheet, R5F102AADSP#50 pinout, R5F102AADSP#50 application, or R5F102AADSP#50 equivalent, key selection criteria include its industrial-grade temperature range (–40°C to +85°C), on-chip data flash with 1M rewrite cycles, high-accuracy ±1.0% on-chip oscillator, and support for UART/CSI/I²C serial interfaces in a 30-pin LSSOP package.
Technical Context
The R5F102AADSP#50 implements the RL78 CPU core with 3-stage pipeline CISC architecture, delivering 31 DMIPS at 24 MHz. Its memory subsystem includes 16 KB code flash with 1 KB block erase, 2 KB data flash supporting background operation (BGO), and 2 KB RAM - enabling firmware updates and real-time data logging without halting execution.
Peripherals include an 8-channel 10-bit A/D converter with internal 1.45 V reference and temperature sensor, 8-channel TAU timer with PWM capability, watchdog and interval timers, and safety features including CRC, RAM guard, and SFR guard - all enabled by default in the R5F102 series but absent in R5F103 variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 31 DMIPS @ 24 MHz |
| Memory | 16 KB code flash (1 KB blocks), 2 KB data flash (1M rewrites), 2 KB RAM |
| Operating Voltage | 1.8 V to 5.5 V - supports direct interfacing with 1.8/2.5/3.3 V logic |
| Temperature Range | –40°C to +85°C (Industrial D-grade) - qualified for factory automation and HVAC |
| A/D Converter | 10-bit resolution, 8 input channels, internal 1.45 V reference, integrated temperature sensor |
| Oscillator Accuracy | ±1.0% @ –20°C to +85°C using high-speed on-chip oscillator (1–24 MHz selectable) |
| Serial Interfaces | 1 × UART, 1 × simplified SPI (CSI), 1 × simplified I²C - all configurable via PIOR register |
| Safety Features | CRC calculation unit, RAM guard, SFR guard - hardware-enforced memory protection |
Pinout & Package
Package: 30-pin plastic LSSOP (7.62 mm, 0.65-mm pitch), RoHS-compliant, moisture sensitivity level (MSL) 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | Serial clock I/O | Configurable as CSI00 clock or I²C00 clock; supports peripheral I/O redirection |
| P11/SI00/RxD0/SDA00 | Serial data input / UART receive | Primary UART0 RX and CSI00 data input; also serves as I²C00 data line |
| P12/SO00/TxD0/TOOLTxD | Serial data output / UART transmit | Primary UART0 TX and CSI00 data output; used for on-chip debug communication |
| P13/TxD2/SO20/SDAA0 | Secondary UART / CSI20 / I²C addressable slave | Enables dual-serial operation; SDAA0 supports multi-master I²C addressing |
| P20/ANI0/AVREFP | Analog input / A/D reference positive | Primary analog channel input and positive reference for internal 10-bit A/D converter |
| P21/ANI1/AVREFM | Analog input / A/D reference negative | Second analog channel and negative reference - enables differential measurement mode |
| RESET | Active-low reset input | Asynchronous external reset; also triggered internally by POR, LVD, watchdog, or illegal instruction |
| REGC | Voltage regulator capacitor terminal | Must connect 0.47–1 µF capacitor to VSS - critical for stable internal voltage regulation |
| X1/X2 | Crystal oscillator inputs | Supports 1–20 MHz crystal/ceramic resonator for precise timing-critical applications |
| VDD/VSS | Power supply / ground | Dual power pins ensure noise isolation between analog and digital domains |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power consumption | 63 μA/MHz active current enables battery-powered operation up to 10+ years in sleep modes |
| Data flash with BGO | Background operation allows concurrent program execution and nonvolatile data storage - no CPU stall during writes |
| Hardware safety mechanisms | CRC engine, RAM guard, and SFR guard detect and prevent memory corruption in safety-critical firmware |
| Flexible serial routing | Peripheral I/O redirection register (PIOR) enables dynamic remapping of UART/CSI/I²C functions to alternate pins |
| Integrated analog subsystem | 8-channel 10-bit A/D with internal reference and temperature sensor eliminates need for external components |
| Industrial temperature qualification | –40°C to +85°C operation validated per JEDEC JESD22-A108 - suitable for uncontrolled environments |
Applications
| Motor Control Interface | Smart Sensor Node |
|---|---|
Use Scenario: Brushless DC motor commutation in HVAC blowers and industrial fans. IC Role / Device Role / Timing Role: Real-time PWM generation via TAU timer channels, analog feedback acquisition via 10-bit A/D, and UART-based host command parsing. Use Value: Integrated 8-channel A/D and 8-channel TAU eliminate external ADC and timer ICs; 2 KB data flash stores calibration coefficients across motor lifetime. |
Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and CO₂ via analog and I²C sensors. IC Role / Device Role / Timing Role: Low-power sensor polling, data preprocessing, and UART/CSI transmission to gateway MCU. Use Value: 63 μA/MHz active current and STOP/HALT modes extend coin-cell life; on-chip temperature sensor enables self-compensation of analog readings. |
| Industrial PLC I/O Module | Energy Metering Subsystem |
Use Scenario: Digital input/output expansion module in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: Isolated GPIO management, status reporting via UART, and watchdog supervision of fieldbus communication. Use Value: N-ch open-drain I/O pins tolerate 6 V transients; RAM guard and SFR guard prevent configuration corruption during EMI events. |
Use Scenario: Secondary metering unit in smart electricity meters performing auxiliary voltage/current sampling and tamper detection. IC Role / Device Role / Timing Role: High-accuracy analog acquisition (10-bit A/D with internal reference), secure firmware update via data flash, and UART-based firmware patching. Use Value: ±1.0% oscillator accuracy ensures reliable time-stamping of energy events; 1M data flash rewrite cycles support 10+ years of daily firmware updates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F102A9DSP#50 | Same package and pinout; 12 KB code flash, 2 KB data flash, 768 B RAM | Lower memory capacity suits simpler control tasks with smaller firmware footprints | Select when application firmware size is under 12 KB and RAM usage remains below 768 B |
| R5F103AADSP#50 | No data flash; no DMA; no CRC/RAM/SFR guard; ±5.0% oscillator accuracy | Lacks nonvolatile data storage and hardware safety features - unsuitable for firmware update or safety-critical use | Choose only for cost-sensitive consumer applications where data logging and memory protection are unnecessary |
Compared with R5F102AADSP#50, R5F102A9DSP#50 reduces code density while retaining identical peripherals and safety features, whereas R5F103AADSP#50 omits data flash, DMA, and all hardware safety mechanisms - making it incompatible for industrial firmware update or fault-tolerant designs.
Availability
R5F102AADSP#50 is available at Aetrix Electronics and suitable for industrial automation, smart sensor nodes, and energy metering applications requiring stable component supply, long-term lifecycle support, and guaranteed industrial temperature performance.
Supply support for R5F102AADSP#50 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 industrial control, sensor interfacing, and appliance applications - balancing performance, integration, and energy efficiency.
FAQ
What is the maximum operating frequency of the R5F102AADSP#50?
The R5F102AADSP#50 supports a maximum system clock frequency of 24 MHz using the high-speed on-chip oscillator. When using an external crystal (X1), the maximum frequency is 20 MHz. Instruction execution achieves 31 DMIPS at 24 MHz, with minimum instruction time of 0.04167 µs. The device maintains full functionality across its 1.8–5.5 V supply range at these speeds.
Does the R5F102AADSP#50 include data flash memory?
Yes, the R5F102AADSP#50 includes 2 KB of dedicated data flash memory. This memory supports background operation (BGO), allowing program execution to continue while data is written or erased. It is rated for 1,000,000 rewrite cycles at VDD = 1.8–5.5 V and is used for storing calibration data, configuration parameters, or event logs without requiring external EEPROM.
What safety features are implemented in the R5F102AADSP#50?
The R5F102AADSP#50 integrates three hardware safety features not present in the R5F103 series: a CRC calculation unit for data integrity verification, RAM guard to detect unauthorized memory access, and SFR guard to prevent accidental modification of special function registers. These features are enabled by default and support functional safety requirements in industrial control applications.
Can the R5F102AADSP#50 operate from a 1.8 V supply?
Yes, the R5F102AADSP#50 operates across a wide supply range of 1.8 V to 5.5 V. At 1.8 V, it supports low-speed main (LS) mode up to 8 MHz and retains full peripheral functionality including the 10-bit A/D converter, UART, and timers. This enables direct interfacing with 1.8 V logic families and extends battery life in portable industrial devices.
What is the purpose of the REGC pin on the R5F102AADSP#50?
The REGC pin on the R5F102AADSP#50 connects to an external 0.47–1 µF capacitor tied to VSS. This capacitor stabilizes the internal voltage regulator that powers the analog circuitry, including the A/D converter and internal reference. Failure to connect this capacitor results in unstable analog measurements and potential malfunction of the 10-bit A/D subsystem.
R5F102AADSP#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 30-LSSOP (0.240", 6.10mm Width)
- Series:
- RL78/G12
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 24MHz
- Connectivity:
- CSI, I2C, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 23
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 8x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F102AADSP#50 FAQ
1.How can I place an order for R5F102AADSP#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F102AADSP#50 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 R5F102AADSP#50 reliable?
The price and inventory of R5F102AADSP#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F102AADSP#50 is usually 5 days.
3.What payment methods are accepted for R5F102AADSP#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F102AADSP#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F102AADSP#50?
R5F102AADSP#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F102AADSP#50 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 R5F102AADSP#50?
For technical support, including R5F102AADSP#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F102AADSP#50 requirements.
6.How does Aetrix verify that R5F102AADSP#50 is sourced from the original manufacturer or authorized distributors?
All R5F102AADSP#50 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 R5F102AADSP#50 meets industry standards.
7.What is the process for return or replacement of R5F102AADSP#50?
All R5F102AADSP#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F102AADSP#50, 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 R5F102AADSP#50 part is unused and in its original packaging.
Return procedure for R5F102AADSP#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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