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Renesas R5F102A9GSP#X0
- Part No.:
- R5F102A9GSP#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 30-LSSOP (0.240", 6.10mm Width)
- Datasheet:
-
R5F102A9GSP#X0.pdf
- Description:
- IC MCU 16BIT 12KB FLASH 30LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,355
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Product details
Overview
R5F102A9GSP#X0 from Renesas Electronics is a 30-pin LSSOP ultra-low-power 16-bit RL78/G12 microcontroller with 12 KB flash, 2 KB data flash, 768 B RAM, and industrial-grade temperature range (–40°C to +105°C). It integrates a 10-bit 8-channel ADC, UART/CSI/I²C serial interfaces, 8-channel 16-bit TAU timer, DMA controller, and operates from 1.8 V to 5.5 V - used in battery-powered industrial sensors and motor control edge nodes.
For engineers reviewing the R5F102A9GSP#X0 datasheet, R5F102A9GSP#X0 pinout, R5F102A9GSP#X0 application, or R5F102A9GSP#X0 equivalent, key selection criteria include its G-grade thermal rating, on-chip 2 KB data flash for parameter storage, 2-channel DMA for sensor data offload, 8-channel TAU with PWM capability, and support for external crystal up to 20 MHz in HS mode.
Technical Context
The R5F102A9GSP#X0 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and 1 MB address space. It supports dual-clock domains: high-speed on-chip oscillator (1–24 MHz, ±1.0% accuracy at –20°C to +85°C) and main system clock via external crystal (1–20 MHz).
Its peripheral set includes 8-channel 16-bit timer array (TAU), 10-bit 8-channel ADC with internal reference, 3 serial interface units (UART0, CSI00, IICA0), CRC engine, RAM guard, and SFR guard - all enabled for industrial reliability under extended temperature operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline, 31 DMIPS @ 24 MHz |
| Flash Memory | 12 KB code flash + 2 KB data flash (1M rewrite cycles, background operation) |
| RAM | 768 B on-chip RAM with RAM guard for error detection |
| Operating Voltage | 1.8 V to 5.5 V - enables direct interface with 1.8/2.5/3.3/5 V logic and battery systems |
| Temperature Range | –40°C to +105°C (G-grade industrial qualification) |
| ADC | 10-bit resolution, 8 input channels, internal 1.45 V reference, temperature sensor included |
| Timers | 8-channel 16-bit TAU (timer array unit), 12-bit interval timer, window watchdog timer |
| Serial Interfaces | 1 UART, 1 CSI, 1 I²C-compatible interface (IICA0), all configurable via PIOR |
Pinout & Package
Package: 30-pin plastic LSSOP (7.62 mm × 4.4 mm, 0.65 mm pitch), RoHS-compliant, tape-and-reel (#X0 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | Serial clock I/O | Configurable as SPI clock or I²C clock; supports peripheral I/O redirection |
| P11/SI00/RxD0/SDA00 | Serial data input / UART receive / I²C data | Multi-function pin for UART0 RX, CSI00 SI, or IICA0 SDA - selected via PIOR |
| P12/SO00/TxD0/TOOLTxD | Serial data output / UART transmit / debug TX | Drives UART0 TX, CSI00 SO, or tool interface; supports TTL-level debug communication |
| P20/ANI0/AVREFP | Analog input / ADC reference positive | Primary analog input channel and selectable AVREF+ source for 10-bit ADC |
| P21/ANI1/AVREFM | Analog input / ADC reference negative | Secondary analog input and AVREF– source; enables differential ADC measurements |
| REGC | Voltage regulator capacitor terminal | Must connect 0.47–1 µF capacitor to VSS to stabilize internal LDO for analog circuitry |
| RESET | Active-low reset input | Accepts external reset signal; also triggered by POR, LVD, WDT, illegal instruction, or RAM parity error |
| X1/X2 | Crystal oscillator inputs | Supports external crystal/resonator up to 20 MHz for precise timing in HS mode |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power modes | Halt (63 μA/MHz), Stop (0.52 μA), SNOOZE (fast wake-up with peripheral activity) |
| Data flash with BGO | 2 KB data flash supports background operation - execute code while rewriting parameters |
| DMA controller | 2-channel DMA enables zero-CPU-overhead transfers between peripherals and RAM |
| Safety features | CRC calculation unit, RAM guard, and SFR guard for runtime memory integrity checking |
| Flexible I/O | 26 total I/O pins including 9 N-ch open-drain (VDD-tolerant), key interrupt, and different-potential interface |
| On-chip debug | Full on-chip debug interface with flash programming support - for development only (not for production) |
Applications
| Industrial Sensor Node | Smart HVAC Controller |
|---|---|
|
Use Scenario: Battery-powered temperature/humidity/pressure sensor node deployed in factory environments with ambient temperatures up to +105°C. IC Role / Device Role / Timing Role: Main system controller executing sensor acquisition, local calibration, low-power scheduling, and UART-based Modbus RTU communication. Use Value: 2 KB data flash stores calibration coefficients and device history; 63 μA/MHz HALT mode extends 10-year battery life; G-grade rating ensures reliability at elevated ambient temperatures. |
Use Scenario: Embedded controller managing fan speed, valve position, and air quality monitoring in commercial HVAC systems. IC Role / Device Role / Timing Role: Real-time actuator driver with 8-channel TAU generating synchronized PWM outputs for DC fans and stepper drivers. Use Value: 8-channel 16-bit TAU provides independent PWM timing for multiple actuators; 10-bit ADC reads thermistors and CO₂ sensors directly; UART/CSI interfaces connect to display and remote diagnostics modules. |
| Programmable Logic Relay | Industrial Motor Starter |
|
Use Scenario: DIN-rail mounted relay module replacing electromechanical timers with programmable delay, counting, and logic functions. IC Role / Device Role / Timing Role: Deterministic real-time sequencer using interval timer and vectored interrupts to execute ladder-logic-equivalent state machines. Use Value: 26 GPIO pins support 12 digital inputs and 8 isolated outputs; RAM guard and CRC ensure firmware integrity during voltage transients; 1.8–5.5 V operation tolerates brown-out conditions. |
Use Scenario: Compact motor starter with overload protection, soft-start ramping, and status reporting for 3-phase induction motors in pump/compressor systems. IC Role / Device Role / Timing Role: Safety-critical motor control unit performing current sampling (via ADC), PWM generation, fault detection, and RS-485 communication. Use Value: On-chip 2 KB data flash retains trip logs and maintenance counters; watchdog timer and SFR guard prevent runaway execution; 12-bit interval timer enables precise soft-start timing control. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F102A8GSP#X0 | 8 KB code flash, 512 B RAM, same package/peripherals/temperature grade | Lower memory footprint suitable for simpler control loops without data logging | Select when application firmware fits within 8 KB and does not require >512 B RAM for buffers or stack |
| R5F103A9GSP#X0 | No data flash, no DMA, no CRC/RAM/SFR guard, ±5.0% oscillator accuracy, same pinout | Limited safety and data retention capability; lower cost for non-critical consumer-grade use | Choose only if data flash, DMA, and industrial safety features are unnecessary and oscillator tolerance >±1.0% is acceptable |
Compared with R5F102A9GSP#X0, R5F102A8GSP#X0 reduces memory capacity but maintains identical safety and timing performance, while R5F103A9GSP#X0 removes critical industrial features - making it unsuitable for applications requiring parameter persistence or runtime memory integrity checks.
Availability
R5F102A9GSP#X0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart HVAC controllers, and programmable logic relays requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for R5F102A9GSP#X0 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 devices 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 battery-operated edge devices - balancing performance, peripheral richness, and energy efficiency.
FAQ
What is the maximum operating frequency of the R5F102A9GSP#X0?
The R5F102A9GSP#X0 supports a maximum high-speed on-chip oscillator frequency of 24 MHz and an external crystal input up to 20 MHz in HS mode. At 24 MHz, it delivers 31 DMIPS performance. The minimum instruction execution time is 0.04167 µs, confirmed in the R01DS0193EJ0220 datasheet Rev.2.20, page 1.
Does the R5F102A9GSP#X0 include data flash memory?
Yes, the R5F102A9GSP#X0 includes 2 KB of data flash memory with background operation (BGO) support, enabling concurrent code execution and data rewriting. It guarantees 1,000,000 rewrite cycles at VDD = 1.8–5.5 V, as specified in the R01DS0193EJ0220 datasheet section 1.1, page 1.
What is the operating temperature range for the R5F102A9GSP#X0?
The R5F102A9GSP#X0 is rated for industrial operation from –40°C to +105°C (G-grade), as indicated by the "G" in its part number per Figure 1-1 of the R01DS0193EJ0220 datasheet. This qualifies it for deployment in harsh thermal environments such as motor drives and outdoor industrial equipment.
How many ADC channels does the R5F102A9GSP#X0 support?
The R5F102A9GSP#X0 integrates a 10-bit successive-approximation ADC with 8 input channels, as confirmed in Table 1-1 and section 1.7 of the R01DS0193EJ0220 datasheet. It includes internal 1.45 V reference voltage and an integrated temperature sensor for system-level thermal monitoring.
Is the R5F102A9GSP#X0 pin-compatible with other RL78/G12 30-pin variants?
Yes, the R5F102A9GSP#X0 shares the identical 30-pin LSSOP package and pin configuration with other RL78/G12 30-pin members (e.g., R5F102AA, R5F102A8, R5F102A7), as shown in Figure 1-4 (page 9) of the R01DS0193EJ0220 datasheet. Peripheral function assignment is consistent across the family when PIOR is set to default values.
R5F102A9GSP#X0 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:
- 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:
- 12KB (12K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 1K 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:
R5F102A9GSP#X0 FAQ
1.How can I place an order for R5F102A9GSP#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F102A9GSP#X0 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 R5F102A9GSP#X0 reliable?
The price and inventory of R5F102A9GSP#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F102A9GSP#X0 is usually 5 days.
3.What payment methods are accepted for R5F102A9GSP#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F102A9GSP#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F102A9GSP#X0?
R5F102A9GSP#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F102A9GSP#X0 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 R5F102A9GSP#X0?
For technical support, including R5F102A9GSP#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F102A9GSP#X0 requirements.
6.How does Aetrix verify that R5F102A9GSP#X0 is sourced from the original manufacturer or authorized distributors?
All R5F102A9GSP#X0 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 R5F102A9GSP#X0 meets industry standards.
7.What is the process for return or replacement of R5F102A9GSP#X0?
All R5F102A9GSP#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F102A9GSP#X0, 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 R5F102A9GSP#X0 part is unused and in its original packaging.
Return procedure for R5F102A9GSP#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F102A9GSP#X0 Tags
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