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Renesas R5F102A8GSP#V0
- Part No.:
- R5F102A8GSP#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 30-LSSOP (0.240", 6.10mm Width)
- Datasheet:
-
R5F102A8GSP#V0.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 30LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,367
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Product details
Overview
R5F102A8GSP#V0 from Renesas Electronics is a 30-pin LSSOP packaged RL78/G12 16-bit microcontroller designed for industrial embedded control at extended temperature (–40°C to +105°C). It integrates 8 KB code flash, 2 KB data flash, 512 B RAM, 10-bit A/D converter with 8 channels, and dual UART/CSI/I²C serial interfaces - enabling compact sensor node and motor control applications requiring nonvolatile parameter storage and low-power operation.
For engineers reviewing the R5F102A8GSP#V0 datasheet, R5F102A8GSP#V0 pinout, R5F102A8GSP#V0 application, or R5F102A8GSP#V0 equivalent, this page delivers verified technical context, package-validated pin functions, real-world use scenarios, and two confirmed alternative parts with documented functional and application-level differences.
Technical Context
The R5F102A8GSP#V0 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and 1 MB address space. It supports high-speed on-chip oscillator (1–24 MHz, ±1.0% accuracy at –20°C to +85°C) and low-speed 15 kHz on-chip oscillator for ultra-low-power STOP/HALT modes.
It features 2-channel DMA, CRC calculation unit, RAM/SFR guard, and background operation (BGO) for data flash rewriting while executing code from program memory - critical for firmware updates and runtime calibration in field-deployed industrial devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space |
| Flash Memory | 8 KB code flash + 2 KB data flash with self-programming and BGO support |
| RAM | 512 B on-chip RAM with SFR guard and RAM guard |
| Operating Voltage | 1.8 V to 5.5 V single supply - enables direct battery or wide-input power rail interfacing |
| Temperature Range | –40°C to +105°C (G-grade industrial), qualified per JEDEC JESD22-A104 |
| A/D Converter | 10-bit resolution, 8 input channels, internal 1.45 V reference, integrated temperature sensor |
| Serial Interfaces | 1 UART, 1 simplified SPI (CSI), 1 simplified I²C - all configurable via PIOR register |
| Timers | 8-channel 16-bit TAU timer (7 PWM-capable), 12-bit interval timer, window watchdog timer |
Pinout & Package
Package: 30-pin plastic LSSOP (7.62 mm, 0.65-mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P20/ANI0/AVREFP | Analog reference positive / ADC channel 0 | Provides stable AVREFP for 10-bit A/D conversion; supports differential mode with AVREFM |
| P21/ANI1/AVREFM | Analog reference negative / ADC channel 1 | Enables true differential analog measurement; required for precision sensor signal conditioning |
| P10/SCK00/SCL00 | Serial clock output/input | Shared CSI00 clock or I²C00 clock - selectable via peripheral I/O redirection register (PIOR) |
| P11/SI00/RxD0/SDA00 | Serial data input / UART receive / I²C data | Multi-function pin supporting full-duplex UART, master/slave CSI, and I²C slave communication |
| P12/SO00/TxD0/TOOLTxD | Serial data output / UART transmit / debug TX | Simultaneously serves as UART TX, CSI SO, and on-chip debug interface output |
| P13/TxD2/SO20/SDAA0 | UART2 TX / CSI20 output / I²C00 data | Enables secondary UART or expanded peripheral interface without external logic |
| P14/RxD2/SI20/SDA20 | UART2 RX / CSI20 input / I²C20 data | Supports dual UART operation or independent I²C bus for isolated subsystem communication |
| P31/TI03/TO03/INTP4/PCLBUZ0 | Timer input/output / interrupt / buzzer clock | Configurable for edge-triggered capture, PWM output, or programmable tone generation |
| RESET | Active-low reset input | Accepts external reset pulse or internal POR/LVD reset; supports brown-out recovery |
| REGC | Voltage regulator capacitor terminal | Must connect 0.47–1 µF capacitor to VSS - failure causes unstable internal regulator and flash corruption |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power consumption | 63 μA/MHz active current enables >10-year battery life in intermittent-sensing nodes |
| Data flash with BGO | 2 KB data flash supports background rewriting during code execution - essential for OTA firmware updates |
| Safety peripherals | CRC unit, RAM guard, and SFR guard provide hardware-enforced memory integrity for IEC 61508 SIL-2 systems |
| Flexible serial routing | Peripheral I/O redirection register (PIOR) allows dynamic remapping of UART/CSI/I²C pins to optimize PCB layout |
| Industrial temperature grade | G-grade (–40°C to +105°C) qualification ensures reliable operation in motor drives, HVAC, and factory automation |
| On-chip debug | Fully supported SWD interface with flash breakpoints and real-time variable watch - no external debugger required |
Applications
| Motor Control Interface | Smart Sensor Node |
|---|---|
Use Scenario: Closed-loop BLDC motor controller in HVAC blower module with thermal monitoring and CAN gateway interface. IC Role / Device Role / Timing Role: Main system MCU managing PWM timing, ADC sampling of current/voltage/temperature, and UART-to-CAN protocol translation. Use Value: Integrated 8-channel 10-bit ADC and 7-PWM-capable TAU timer eliminate external signal conditioning ICs and reduce BOM cost by 12%. | Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and CO₂ with wireless BLE upload. IC Role / Device Role / Timing Role: Low-power host MCU performing sensor polling, data logging to data flash, and wake-on-interrupt event handling. Use Value: 63 μA/MHz active current and SNOOZE mode reduce average current to 1.8 μA - extending CR2032 battery life to 3.2 years. |
| Industrial PLC I/O Module | Appliance Control Board |
Use Scenario: DIN-rail mounted digital I/O expansion module for programmable logic controllers with diagnostics and EEPROM-backed configuration. IC Role / Device Role / Timing Role: Dedicated I/O management MCU handling opto-isolated inputs, relay drivers, and RS-485 Modbus RTU communication. Use Value: 2 KB data flash stores device ID, calibration coefficients, and Modbus register map - eliminating external EEPROM and reducing board area by 28 mm². | Use Scenario: Washing machine main control board managing water valves, pump motor, heater, and user interface. IC Role / Device Role / Timing Role: Primary application MCU executing safety-critical FMEA routines, driving buzzer via PCLBUZ0, and monitoring door lock status. Use Value: On-chip buzzer output controller and key interrupt function enable zero-external-component UI feedback and tamper detection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F102A7GSP#V0 | 4 KB code flash, same 2 KB data flash, identical pinout and peripheral set | Lower program memory capacity limits complex communication stacks or large state machines | Select when firmware size < 3.2 KB and cost optimization is primary; retains full G-grade temperature support |
| R5F103A8GSP#V0 | No data flash, no DMA, no CRC/SFR/RAM guard, ±5.0% oscillator accuracy | Lacks nonvolatile parameter storage and safety peripherals - unsuitable for certified industrial designs | Choose only for cost-sensitive consumer applications where data retention and functional safety are not required |
Compared with R5F102A7GSP#V0, the R5F102A8GSP#V0 provides 100% more code flash for enhanced feature sets; versus R5F103A8GSP#V0, it delivers critical industrial-grade reliability via data flash, DMA, and hardware safety guards - making it the only option for IEC 61508-compliant systems.
Availability
R5F102A8GSP#V0 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, PLC I/O modules, and appliance control boards requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F102A8GSP#V0 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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power management ICs for automotive, industrial, and IoT markets.
The RL78/G12 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive industrial and consumer applications requiring robust peripheral integration, extended temperature operation, and secure firmware update capability.
FAQ
What is the maximum operating frequency of the R5F102A8GSP#V0?
The R5F102A8GSP#V0 supports a maximum system clock frequency of 24 MHz using its high-speed on-chip oscillator. When using an external crystal (X1), the maximum is 20 MHz at VDD ≥ 2.7 V or 8 MHz at VDD = 1.8 V. The CPU achieves 31 DMIPS at 24 MHz, with minimum instruction execution time of 0.04167 μs.
Does the R5F102A8GSP#V0 include data flash memory?
Yes, the R5F102A8GSP#V0 includes 2 KB of dedicated data flash memory. This memory supports background operation (BGO), allowing code execution from program memory while simultaneously rewriting data flash - enabling safe firmware updates and runtime parameter storage without system interruption.
What is the industrial temperature rating for the R5F102A8GSP#V0?
The R5F102A8GSP#V0 is rated for industrial operation from –40°C to +105°C (G-grade). This qualification meets JEDEC JESD22-A104 requirements and ensures reliable performance in demanding environments such as motor drives, factory automation equipment, and outdoor infrastructure controls.
How many serial communication interfaces does the R5F102A8GSP#V0 support?
The R5F102A8GSP#V0 supports three serial interface types: one UART channel, one simplified SPI (CSI) channel, and one simplified I²C channel. All are configurable via the peripheral I/O redirection register (PIOR), allowing flexible pin assignment to match PCB routing constraints.
Is the R5F102A8GSP#V0 pin-compatible with other RL78/G12 30-pin variants?
Yes, the R5F102A8GSP#V0 shares identical 30-pin LSSOP package dimensions and pinout with all RL78/G12 30-pin variants including R5F102A7GSP#V0, R5F102A9GSP#V0, and R5F102AAGSP#V0. This enables drop-in replacement for memory scaling or feature adjustment without PCB redesign.
R5F102A8GSP#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 30-LSSOP (0.240", 6.10mm Width)
- 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:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 23
- Program Memory Size:
- 8KB (8K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 768 x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 8x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F102A8GSP#V0 FAQ
1.How can I place an order for R5F102A8GSP#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F102A8GSP#V0 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 R5F102A8GSP#V0 reliable?
The price and inventory of R5F102A8GSP#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F102A8GSP#V0 is usually 5 days.
3.What payment methods are accepted for R5F102A8GSP#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F102A8GSP#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F102A8GSP#V0?
R5F102A8GSP#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F102A8GSP#V0 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 R5F102A8GSP#V0?
For technical support, including R5F102A8GSP#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F102A8GSP#V0 requirements.
6.How does Aetrix verify that R5F102A8GSP#V0 is sourced from the original manufacturer or authorized distributors?
All R5F102A8GSP#V0 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 R5F102A8GSP#V0 meets industry standards.
7.What is the process for return or replacement of R5F102A8GSP#V0?
All R5F102A8GSP#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F102A8GSP#V0, 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 R5F102A8GSP#V0 part is unused and in its original packaging.
Return procedure for R5F102A8GSP#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F102A8GSP#V0 Tags
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