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Renesas R5F102AAASP#10
- Part No.:
- R5F102AAASP#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 30-LSSOP (0.240", 6.10mm Width)
- Datasheet:
-
R5F102AAASP#10.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 30LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,235
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Product details
Overview
R5F102AAASP#10 from Renesas Electronics is a 30-pin LSSOP packaged 16-bit RL78/G12 microcontroller designed for ultra-low-power embedded control in consumer-grade applications (–40°C to +85°C). It integrates 16 KB code flash, 2 KB data flash, 2 KB RAM, a 24 MHz high-accuracy on-chip oscillator (±1.0% over –20°C to +85°C), and an 8-channel 10-bit A/D converter - enabling battery-powered sensor nodes and smart home peripherals.
For engineers reviewing the R5F102AAASP#10 datasheet, R5F102AAASP#10 pinout, R5F102AAASP#10 application, or R5F102AAASP#10 equivalent, key selection criteria include its 2 KB data flash with background operation (BGO), dual UART/CSI/I²C serial interfaces, 8-channel TAU timer with PWM capability, DMA support, and CRC hardware acceleration - all within a 1.8–5.5 V single-supply, 63 μA/MHz active power envelope.
Technical Context
The R5F102AAASP#10 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, delivering 31 DMIPS at 24 MHz. Its memory subsystem includes 16 KB code flash (1 KB block size) with self-programming and flash shield window, plus 2 KB data flash rated for 1,000,000 rewrites at full VDD range (1.8–5.5 V).
Peripheral integration centers on flexible timing (8-channel 16-bit TAU, 12-bit interval timer, watchdog), analog sensing (8-channel 10-bit ADC with internal 1.45 V reference and temperature sensor), and communication (UART0/UART1, CSI00/CSI11, IIC00/IIC11, IICA0), all managed via vectored interrupts with up to 26 sources and hardware CRC for data integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space |
| Operating Voltage | 1.8 V to 5.5 V - supports direct Li-ion, 3.3 V, and 5 V system rails without level shifters |
| Flash Memory | 16 KB code flash + 2 KB data flash - enables firmware updates and nonvolatile parameter storage with BGO |
| RAM Size | 2 KB on-chip RAM - sufficient for real-time control stacks and small buffers in sensor fusion |
| ADC Resolution | 10-bit A/D converter with 8 input channels - provides 1 LSB = ~4.9 mV @ 5 V full-scale for precision analog monitoring |
| Timer Resources | 8-channel 16-bit TAU + 12-bit interval timer + watchdog - supports multi-phase motor control and periodic wake-up scheduling |
| Serial Interfaces | 2 UART, 2 CSI, 2 I²C, 1 IICA - allows concurrent communication with BLE modules, displays, and I²C sensors |
| Power Efficiency | 63 μA/MHz active current - extends battery life in always-on IoT endpoints beyond 5 years on coin cells |
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 |
|---|---|---|
| P10/SCK00/SCL00 | Serial clock I/O | Configurable as SPI clock or I²C clock; supports peripheral I/O redirection for flexible board layout |
| P11/SI00/RxD0/SDA00 | Serial data input / UART receive / I²C data | Multi-function pin enabling shared bus routing; default UART0 RX for debug console |
| P12/SO00/TxD0/TOOLTxD | Serial data output / UART transmit / tool interface | Primary debug UART TX; also drives SPI slave-out or I²C data during protocol switching |
| P13/TxD2/SO20/SDAA0 | Secondary UART TX / SPI slave-out / I²C data | Enables independent UART2 for modem control while preserving I²C for sensor hub |
| P14/RxD2/SI20/SDA20 | Secondary UART RX / SPI slave-in / I²C data | Supports full-duplex UART2 + I²C slave mode simultaneously via PIOR register configuration |
| P20/ANI0/AVREFP | Analog input / ADC reference positive | Primary analog channel with dedicated AVREFP - eliminates external reference for single-supply sensor front-ends |
| P21/ANI1/AVREFM | Analog input / ADC reference negative | Paired with P20 to enable differential ADC measurements or ratiometric sensor scaling |
| RESET | Active-low reset input | Accepts standard push-button or supervisor IC reset signals; internal POR/LVD ensures robust startup |
| REGC | Voltage regulator capacitor terminal | Must connect 0.47–1 µF capacitor to VSS - critical for stable internal LDO operation and ADC accuracy |
| VDD / VSS | Power supply / ground | Dual VDD/VSS pair minimizes noise coupling; decoupling required per Renesas layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Background Data Flash Operation (BGO) | Execute code from program memory while rewriting 2 KB data flash - enables seamless OTA parameter updates |
| Hardware CRC Accelerator | Offloads checksum calculation for firmware validation and secure boot - reduces CPU overhead by >95% vs software CRC |
| Low-Power SNOOZE Mode | Retains RAM and peripheral context while disabling CPU - wakes in <1 µs for event-driven sensor sampling |
| Programmable Clock/Buzzer Output (PCLBUZ0/1) | Generates precise 2.44 kHz–10 MHz clocks or audible tones directly from timer - eliminates external oscillators or buzzers |
| Peripheral I/O Redirection (PIOR) | Reassigns up to 12 peripheral functions across 10 pins - simplifies PCB routing and enables pin-compatible variants |
| On-Chip Voltage Detector (LVD) | 12-level programmable threshold (1.88–4.06 V) with interrupt/reset options - prevents brownout corruption in battery systems |
Applications
| Smart Home Sensor Hub | Industrial Remote I/O Module |
|---|---|
Use Scenario: Central node aggregating temperature, humidity, and motion data from multiple wireless sensors before forwarding via UART-to-LoRaWAN bridge. IC Role / Device Role / Timing Role: Main controller executing sensor fusion, data compression, and low-power scheduling using TAU timers and SNOOZE mode. Use Value: 2 KB data flash stores calibrated offsets and network keys; 8-channel ADC reads local environmental sensors without external mux. | Use Scenario: DIN-rail mounted module converting 4–20 mA analog inputs and dry-contact status into Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Isolated field interface MCU handling analog acquisition, digital I/O scanning, and protocol stack execution. Use Value: Dual UARTs enable simultaneous Modbus master/slave operation; hardware CRC ensures packet integrity over noisy industrial buses. |
| Portable Medical Monitor | White Goods Control Board |
Use Scenario: Battery-powered pulse oximeter acquiring photodiode signals, computing SpO₂, and displaying results on segmented LCD. IC Role / Device Role / Timing Role: Signal processor running real-time filtering algorithms and driving buzzer alerts via PCLBUZ0. Use Value: 10-bit ADC with internal reference achieves ±1% measurement accuracy; 63 μA/MHz extends 2-week runtime on CR2032. | Use Scenario: Washing machine main control unit managing motor drive, water valve sequencing, and user interface feedback. IC Role / Device Role / Timing Role: System orchestrator coordinating PWM motor control, relay timing, and touch-key scanning via KR inputs. Use Value: Key interrupt function detects button presses with zero CPU polling; 8-channel TAU generates precise motor phase timing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F102A7ASP#10 | 4 KB code flash, 512 B RAM, same 30-pin LSSOP package and peripheral set | Limited firmware complexity and smaller data buffers; suitable for cost-sensitive fixed-function devices | Select when application firmware fits ≤4 KB and requires no data logging or complex UI state management |
| R5F103AAASP#10 | No data flash, no DMA, no CRC, reduced serial interface count (1 UART, 1 CSI, 0 I²C), same 16 KB flash and 2 KB RAM | Lower security and data persistence requirements; acceptable for simple control-only tasks | Select when background flash writes, hardware CRC, or dual-protocol communication are unnecessary |
Compared with R5F102A7ASP#10, the R5F102AAASP#10 provides 4× more code space and 4× more RAM for feature-rich firmware; compared with R5F103AAASP#10, it adds critical data retention, data integrity, and communication flexibility essential for connected edge devices.
Availability
R5F102AAASP#10 is available at Aetrix Electronics and suitable for smart home sensor hubs, portable medical monitors, and white goods control boards requiring stable component supply across multi-year production cycles.
Supply support for R5F102AAASP#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 delivers true low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and energy-efficient embedded control applications - balancing performance, integration, and power consumption.
FAQ
What is the maximum operating frequency of the R5F102AAASP#10?
The R5F102AAASP#10 supports a maximum system clock frequency of 24 MHz using its high-speed on-chip oscillator. This yields 31 DMIPS of processing performance while maintaining ultra-low power consumption of 63 μA/MHz. External crystal operation is also supported up to 20 MHz in HS mode, with oscillator stabilization managed via the OSTC register.
Does the R5F102AAASP#10 include data flash memory?
Yes, the R5F102AAASP#10 includes 2 KB of dedicated data flash memory. It supports background operation (BGO), allowing instruction execution from program memory during erase/write cycles. The data flash is rated for 1,000,000 rewrite cycles across the full 1.8–5.5 V VDD range and includes flash shield window protection against unauthorized access.
How many UART interfaces does the R5F102AAASP#10 provide?
The R5F102AAASP#10 provides two independent UART interfaces: UART0 and UART1. UART0 is accessible on pins P11 (RxD0) and P12 (TxD0); UART1 uses P00 (TxD1) and P01 (RxD1). Both support standard asynchronous communication and can operate concurrently, enabling simultaneous debug logging and host communication.
What is the purpose of the REGC pin on the R5F102AAASP#10?
REGC is the voltage regulator capacitor terminal for the internal LDO. It must be connected to VSS via a 0.47–1 µF ceramic capacitor to stabilize the internal analog supply. Failure to properly decouple REGC degrades ADC accuracy, increases power supply noise, and may cause erratic reset behavior - this connection is mandatory per Renesas layout guidelines.
Can the R5F102AAASP#10 operate from a 1.8 V supply?
Yes, the R5F102AAASP#10 operates across a 1.8 V to 5.5 V supply range. At 1.8 V, it supports LS (low-speed main) mode up to 8 MHz and retains full functionality including ADC, timers, and serial interfaces. The 10-bit ADC maintains specified accuracy down to 1.8 V, and the high-speed on-chip oscillator remains functional at reduced frequencies.
R5F102AAASP#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:
- 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:
R5F102AAASP#10 FAQ
1.How can I place an order for R5F102AAASP#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F102AAASP#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 R5F102AAASP#10 reliable?
The price and inventory of R5F102AAASP#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F102AAASP#10 is usually 5 days.
3.What payment methods are accepted for R5F102AAASP#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F102AAASP#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F102AAASP#10?
R5F102AAASP#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F102AAASP#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 R5F102AAASP#10?
For technical support, including R5F102AAASP#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F102AAASP#10 requirements.
6.How does Aetrix verify that R5F102AAASP#10 is sourced from the original manufacturer or authorized distributors?
All R5F102AAASP#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 R5F102AAASP#10 meets industry standards.
7.What is the process for return or replacement of R5F102AAASP#10?
All R5F102AAASP#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F102AAASP#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 R5F102AAASP#10 part is unused and in its original packaging.
Return procedure for R5F102AAASP#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F102AAASP#10 Tags
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