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Renesas R5F102A8GSP#10
- Part No.:
- R5F102A8GSP#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 30-LSSOP (0.240", 6.10mm Width)
- Datasheet:
-
R5F102A8GSP#10.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 30LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,664
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Product details
Overview
R5F102A8GSP#10 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 (8 channels), UART/CSI/I²C serial interfaces, 8-channel 16-bit TAU timer, and DMA controller - enabling low-power sensor node and motor control applications.
For engineers reviewing the R5F102A8GSP#10 datasheet, R5F102A8GSP#10 pinout, R5F102A8GSP#10 application, or R5F102A8GSP#10 equivalent, this page delivers verified electrical specs, package mapping, functional pin roles, real-world use cases, and validated alternative parts - all aligned with Rev.2.50 (Jan 2025) official documentation.
Technical Context
The R5F102A8GSP#10 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting 1 MB address space and minimum instruction execution time of 0.04167 µs at 24 MHz (high-speed on-chip oscillator). Its power management includes HALT, STOP, and SNOOZE modes achieving 63 µA/MHz active current consumption.
It features dual-oscillator support: high-accuracy ±1.0% (–20°C to +85°C) 1–24 MHz on-chip oscillator and external crystal/ceramic input (X1/X2) up to 20 MHz. Safety functions include CRC operation, RAM guard, and SFR guard - exclusive to R5F102-series devices and absent in R5F103 variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time control with 31 DMIPS @ 24 MHz |
| Memory Configuration | 8 KB code flash (1 KB block size), 2 KB data flash (1M rewrite cycles), 512 B RAM - supports firmware updates and parameter logging without external storage |
| Operating Voltage | 1.8 V to 5.5 V single supply - interoperable with 1.8 V, 3.3 V, and 5 V logic domains and battery-powered systems |
| Temperature Range | –40°C to +105°C (G-grade industrial) - qualified for under-hood automotive sensors and factory automation controllers |
| Analog Peripherals | 10-bit A/D converter with 8 input channels, internal 1.45 V reference, and integrated temperature sensor - eliminates need for external references in thermal monitoring |
| Serial Interfaces | 1 UART, 1 simplified SPI (CSI), 1 simplified I²C - sufficient for sensor fusion (I²C), host communication (UART), and actuator control (SPI) |
| Timer Resources | 8-channel 16-bit TAU timer with PWM output capability (up to 7 channels), 12-bit interval timer, and window watchdog - suitable for multi-axis motor timing and safety-critical timeout supervision |
Pinout & Package
Package: 30-pin plastic LSSOP (7.62 mm, 0.65-mm pitch), JEDEC MS-012AC compliant, footprint PLSP0030JB-B. Thermal pad not present; REGC pin requires 0.47–1 µF capacitor to VSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | Primary SPI clock / I²C clock | Configurable as master clock for CSI00 or IIC00; supports shared bus routing with software-selectable function |
| P11/SI00/RxD0/SDA00 | SPI input / UART receive / I²C data | Tri-function pin enabling flexible peripheral assignment; default UART0 RX for debug interface |
| P12/SO00/TxD0/TOOLTxD | SPI output / UART transmit / debug TX | Supports simultaneous UART0 TX and tool communication; critical for in-system programming and diagnostics |
| P20/ANI0/AVREFP | Analog input / A/D reference positive | Dual-role pin: primary analog channel 0 input or precision 1.45 V reference source for internal ADC calibration |
| P21/ANI1/AVREFM | Analog input / A/D reference negative | Provides differential reference pair with P20; enables ratiometric sensing and noise-rejecting analog measurements |
| P60/SCLA0 | I²C clock line (open-drain) | 6 V-tolerant N-ch open-drain output; compatible with 1.8 V–5 V I²C slaves without level shifters |
| P61/SDAA0 | I²C data line (open-drain) | 6 V-tolerant N-ch open-drain output; supports standard/fast-mode I²C (100/400 kHz) with external pull-ups |
| RESET | Active-low reset input | Accepts asynchronous reset pulse; also triggered by internal POR, LVD, watchdog, or illegal instruction detection |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power operation | 63 µA/MHz active current; HALT/STOP/SNOOZE modes reduce system standby power to sub-µA levels |
| Data flash with background operation | 2 KB data flash supports BGO - allows program execution from code flash while rewriting non-volatile parameters |
| Hardware safety mechanisms | CRC calculation unit, RAM guard, and SFR guard detect memory corruption and prevent unintended register writes |
| Flexible clock system | High-accuracy ±1.0% on-chip oscillator (1–24 MHz) eliminates external crystal cost in non-precision timing apps |
| Industrial-grade robustness | G-grade qualification (–40°C to +105°C), 6 V-tolerant I/O pins, and 12-level voltage detector enable reliable operation in harsh environments |
Applications
| Smart Thermostat Control | Industrial Motor Drive Interface |
|---|---|
|
Use Scenario: Embedded HVAC controller acquiring ambient temperature/humidity via analog sensors and I²C digital sensors, regulating fan speed and valve position. IC Role / Device Role / Timing Role: Main system MCU executing PID loop, managing UART-based cloud gateway, and driving PWM-controlled actuators. Use Value: Integrated 8-channel 10-bit ADC and 8-channel TAU timer eliminate external signal conditioning and timing ICs; 2 KB data flash stores calibration coefficients across power cycles. |
Use Scenario: BLDC motor driver board performing commutation sequencing, current sensing, and fault reporting in factory automation equipment. IC Role / Device Role / Timing Role: Real-time motion controller synchronizing gate drive signals, sampling shunt resistors, and communicating status over UART. Use Value: 63 µA/MHz efficiency extends thermal margin; hardware CRC validates firmware integrity during OTA updates; 6 V-tolerant I/O interfaces directly with 5 V encoder feedback circuits. |
| Portable Medical Sensor Hub | Energy Meter Communication Module |
|
Use Scenario: Battery-powered wearable device aggregating ECG, SpO₂, and motion data, then transmitting via UART to smartphone. IC Role / Device Role / Timing Role: Low-power sensor aggregator with analog front-end, digital filtering, and serial protocol translation. Use Value: Single-supply 1.8–5.5 V operation enables direct Li-ion battery connection; SNOOZE mode reduces average current to <1 µA during sensor sleep intervals. |
Use Scenario: Smart meter add-on module reading utility meter pulses and transmitting consumption data via RS-485 (UART-driven transceiver). IC Role / Device Role / Timing Role: Isolated communication co-processor handling protocol framing, error checking, and watchdog supervision. Use Value: G-grade temperature rating ensures reliability in outdoor meter enclosures; 12-level LVD detects brown-out conditions before EEPROM corruption occurs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F102A7GSP#10 | 4 KB code flash, 256 B RAM, same 30-pin LSSOP package and G-grade temp range | Limited memory headroom for complex protocols or large lookup tables | Select when firmware size ≤ 3.5 KB and RAM usage < 200 B; lower cost for fixed-function metering |
| R5F103A8GSP#10 | No data flash, no DMA, no CRC/RAM/SFR guard; identical pinout and core performance | Not suitable for field-upgradable firmware or safety-certified designs requiring memory protection | Choose only for cost-sensitive consumer products where data retention and functional safety are non-critical |
Compared with R5F102A8GSP#10, R5F102A7GSP#10 trades memory capacity for cost reduction while retaining all safety features, whereas R5F103A8GSP#10 removes data flash and hardware guards - making it unsuitable for applications requiring parameter persistence or IEC 61508 compliance.
Availability
R5F102A8GSP#10 is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, portable medical devices, and HVAC systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F102A8GSP#10 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 targets cost-sensitive, ultra-low-power embedded applications requiring industrial temperature resilience, integrated analog peripherals, and functional safety features - optimized for sensor nodes, appliance control, and metering.
FAQ
What is the maximum operating frequency of the R5F102A8GSP#10 using its internal oscillator?
The R5F102A8GSP#10 supports a high-speed on-chip oscillator up to 24 MHz with ±1.0% accuracy over –20°C to +85°C ambient. At full 24 MHz operation, it delivers 31 DMIPS performance and achieves 63 µA/MHz active current consumption - confirmed in Section 1.1 and Table 1-1 of R01DS0193EJ0250 Rev.2.50.
Does the R5F102A8GSP#10 support in-application programming (IAP) of its code flash memory?
Yes, the R5F102A8GSP#10 supports self-programming of code flash memory using the RL78 Family Flash Self Programming Library Type01. This requires dedicated library routines and consumes code flash and RAM resources during execution - details are specified in Chapter 3 of the RL78/G12 User's Manual and R01DS0193EJ0250 Section 1.1.
How many analog input channels are accessible on the R5F102A8GSP#10, and what is their resolution?
The R5F102A8GSP#10 provides 8 analog input channels (ANI0–ANI3, ANI16–ANI19) with 10-bit resolution and an internal 1.45 V reference voltage. The A/D converter operates across the full 1.8–5.5 V supply range - as documented in Section 1.1 "A/D converter" and Table 1-1 of R01DS0193EJ0250 Rev.2.50.
Is the R5F102A8GSP#10 pin-compatible with other RL78/G12 30-pin variants like R5F103A8GSP#10?
Yes, the R5F102A8GSP#10 shares identical 30-pin LSSOP pinout and package (PLSP0030JB-B) with R5F103A8GSP#10 and R5F102A7GSP#10. However, functional differences exist: R5F102A8GSP#10 includes data flash, DMA, and CRC/RAM/SFR guard features that R5F103A8GSP#10 lacks - per Section 1.3 of R01DS0193EJ0250 Rev.2.50.
What safety features are implemented in the R5F102A8GSP#10 that distinguish it from R5F103-series MCUs?
The R5F102A8GSP#10 includes CRC operation unit, RAM guard, and SFR guard - hardware mechanisms that detect memory corruption and prevent unauthorized register writes. These features are explicitly absent in all R5F103-series devices, as confirmed in Section 1.3.3 "Peripheral Functions" of R01DS0193EJ0250 Rev.2.50.
R5F102A8GSP#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 30-LSSOP (0.240", 6.10mm Width)
- Series:
- RL78/G12
- Packaging:
- Tray
- 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:
- 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#10 FAQ
1.How can I place an order for R5F102A8GSP#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F102A8GSP#10 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#10 reliable?
The price and inventory of R5F102A8GSP#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F102A8GSP#10 is usually 5 days.
3.What payment methods are accepted for R5F102A8GSP#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F102A8GSP#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F102A8GSP#10?
R5F102A8GSP#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F102A8GSP#10 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#10?
For technical support, including R5F102A8GSP#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F102A8GSP#10 requirements.
6.How does Aetrix verify that R5F102A8GSP#10 is sourced from the original manufacturer or authorized distributors?
All R5F102A8GSP#10 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#10 meets industry standards.
7.What is the process for return or replacement of R5F102A8GSP#10?
All R5F102A8GSP#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F102A8GSP#10, 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#10 part is unused and in its original packaging.
Return procedure for R5F102A8GSP#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F102A8GSP#10 Tags
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ATTINY4-TSHR
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