My Inquiry
My Account
Renesas R5F102A9DSP#X0
- Part No.:
- R5F102A9DSP#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 30-LSSOP (0.240", 6.10mm Width)
- Datasheet:
-
R5F102A9DSP#X0.pdf
- Description:
- IC MCU 16BIT 12KB FLASH 30LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,595
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F102A9DSP#X0 from Renesas Electronics is a 30-pin LSSOP packaged RL78/G12 16-bit microcontroller designed for low-power embedded control in consumer and industrial applications. It integrates 16 KB code flash, 2 KB data flash, 2 KB RAM, an 8-channel 10-bit A/D converter, dual UART/CSI/I²C serial interfaces, 8-channel TAU timer, DMA controller, and operates from 1.8 V to 5.5 V at up to 24 MHz - enabling battery-powered sensor nodes and smart appliance control.
For engineers reviewing the R5F102A9DSP#X0 datasheet, R5F102A9DSP#X0 pinout, R5F102A9DSP#X0 application, or R5F102A9DSP#X0 equivalent, key selection criteria include its 2 KB data flash with background operation (BGO), ±1.0% high-speed on-chip oscillator accuracy over –20°C to +85°C, CRC and RAM/SFR guard safety features, and 30-pin LSSOP package with 26 I/Os including 8 analog inputs and 9 N-ch open-drain outputs.
Technical Context
The R5F102A9DSP#X0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, delivering 31 DMIPS at 24 MHz while consuming only 63 μA/MHz in active mode. Its memory subsystem includes 16 KB code flash (1 KB block size) with self-programming and security lock, plus 2 KB data flash supporting 1 million rewrites at full VDD range (1.8–5.5 V) with BGO capability.
Peripherals are optimized for real-time control: 8-channel 16-bit TAU timer with PWM output, dual UART/CSI/I²C channels, 8-channel 10-bit A/D converter with internal reference (1.45 V) and temperature sensor, and 2-channel DMA supporting transfers between SFR and RAM in just 2 clocks - all managed via vectored interrupts with 26 internal sources and 6 external pins.
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 - enables direct interface with 1.8/2.5/3.3/5 V logic and battery operation |
| Max Clock Speed | 24 MHz using high-speed on-chip oscillator - delivers 31 DMIPS performance |
| Memory Resources | 16 KB code flash (1 KB blocks), 2 KB data flash (BGO enabled), 2 KB RAM |
| Analog Peripherals | 8-channel 10-bit A/D converter with internal 1.45 V reference and integrated temperature sensor |
| Digital Peripherals | 8-channel TAU timer, 2-channel DMA, UART ×1, CSI ×1, I²C ×1, CRC engine, RAM/SFR guard |
| Package & I/O | LSSOP-30 (7.62 mm, 0.65 mm pitch); 26 total I/Os including 8 analog inputs and 9 N-ch open-drain outputs |
Pinout & Package
Package: 30-pin plastic LSSOP (7.62 mm × 5.3 mm, 0.65 mm pitch), RoHS-compliant, tape-and-reel (#X0 specification).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply | Main digital supply (1.8–5.5 V); decoupling required per layout guidelines |
| VSS | Ground | Digital ground reference; must be connected to system GND plane |
| REGC | Regulator capacitance | Connect 0.47–1 µF capacitor to VSS to stabilize internal voltage regulator |
| RESET | Reset input | Active-low reset pin; supports external pull-up and debounced reset source |
| X1 / X2 | Crystal oscillator inputs | Supports 1–20 MHz crystal/ceramic resonator for precise timing reference |
| P10 / P11 / P12 | Serial interface I/O | Configurable as SCK00/SCL00, SI00/RxD0/SDA00, SO00/TxD0/TOOLTxD - primary UART/CSI/I²C channel |
| P20 / P21 / P22 / P23 | Analog inputs | ANI0/AVREFP, ANI1/AVREFM, ANI2, ANI3 - support differential A/D measurement with internal references |
| P147 / P120 | Analog inputs | ANI18, ANI19 - extend A/D to 8 channels in 30-pin configuration |
| P13 / P14 / P15 | Secondary serial I/O | Support UART2, CSI20, IIC20 - enables dual independent serial buses |
| P31 / P30 / P50 / P51 | Timer/interrupt I/O | TI03/TO03/INTP4, INTP3, INTP1, INTP2 - support multi-channel PWM and external event capture |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT/STOP/SNOOZE modes | Enables sub-μA sleep current - critical for coin-cell or energy-harvesting systems |
| 2 KB data flash with background operation (BGO) | Allows firmware updates or logging without halting CPU execution |
| ±1.0% high-speed on-chip oscillator accuracy | Eliminates need for external crystal in cost-sensitive applications while maintaining UART timing integrity |
| CRC engine + RAM/SFR guard | Provides hardware-level memory integrity checking for functional safety compliance (IEC 61508 SIL2) |
| 8-channel 10-bit A/D with temperature sensor | Enables closed-loop thermal management and sensor fusion without external components |
| 2-channel DMA with 2-clock transfer latency | Reduces CPU load during high-speed peripheral data movement (e.g., UART-to-RAM buffering) |
Applications
| Smart Home Sensor Hub | Industrial Motor Controller |
|---|---|
Use Scenario: Central node aggregating temperature, humidity, and motion data from multiple sensors, transmitting via UART to gateway. IC Role / Device Role / Timing Role: Main system controller executing sensor polling, data preprocessing, and serial protocol handling with precise timing via TAU and internal oscillator. Use Value: Integrated 8-channel A/D, 2 KB data flash for local logging, and ultra-low power modes extend battery life beyond 2 years on AA cells. | Use Scenario: Closed-loop speed and current control of BLDC motors in HVAC blowers or conveyor drives. IC Role / Device Role / Timing Role: Real-time motor commutation controller using PWM outputs from TAU channels synchronized to A/D sampling of current feedback. Use Value: 8-channel TAU with complementary PWM, 10-bit A/D with temperature sensor, and CRC guard ensure deterministic timing and functional safety compliance. |
| White Goods Control Panel | Medical Diagnostic Device |
Use Scenario: User interface and system management for washing machines, including keypad scanning, display driving, and cycle sequencing. IC Role / Device Role / Timing Role: General-purpose MCU managing key interrupt matrix, buzzer output (PCLBUZ0/1), and serial communication with main processor. Use Value: On-chip key interrupt, programmable clock/buzzer outputs, and 26 GPIOs eliminate external interface ICs and reduce BOM count. | Use Scenario: Portable blood glucose meter requiring accurate analog measurement, secure firmware updates, and long battery life. IC Role / Device Role / Timing Role: Precision A/D acquisition engine with internal 1.45 V reference and temperature compensation, plus secure data flash storage for calibration coefficients. Use Value: 10-bit A/D with internal reference and 2 KB data flash rated for 1M rewrites enable field calibration and regulatory-compliant data retention. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F102AAASP#V0 | Same 30-pin LSSOP package, identical 16 KB code flash and 2 KB RAM, but lacks data flash memory | Not suitable for applications requiring non-volatile parameter storage or firmware updates in field | Select only if data flash functionality is unnecessary and cost reduction is prioritized |
| R5F103A9DSP#X0 | Same pinout and package, but no data flash, no DMA, no CRC/RAM guard, and ±5.0% oscillator accuracy | Lower safety and timing precision - acceptable for basic control where BGO or functional safety not required | Choose when design constraints exclude data flash use and oscillator tolerance >±1.0% is acceptable |
Compared with R5F102AAASP#V0 and R5F103A9DSP#X0, the R5F102A9DSP#X0 uniquely provides 2 KB data flash with BGO, ±1.0% oscillator accuracy, and hardware safety features - making it the only option among the three for applications demanding field-upgradable firmware, precise serial timing, and memory integrity assurance.
Availability
R5F102A9DSP#X0 is available at Aetrix Electronics and suitable for smart home sensor hubs, industrial motor controllers, white goods control panels, and portable medical devices requiring stable component supply across extended production lifecycles.
Supply support for R5F102A9DSP#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 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 was engineered specifically for ultra-low-power general-purpose embedded control - balancing performance, integration, and energy efficiency for cost-sensitive, battery-operated, and safety-aware applications.
FAQ
What is the maximum operating frequency and power consumption of the R5F102A9DSP#X0?
The R5F102A9DSP#X0 operates at up to 24 MHz using its high-speed on-chip oscillator and achieves 31 DMIPS performance while consuming only 63 μA/MHz in active mode. At 24 MHz and 3.3 V, typical active current is approximately 1.5 mA. Its HALT, STOP, and SNOOZE modes reduce current to sub-μA levels, enabling multi-year battery life in sensor applications.
Does the R5F102A9DSP#X0 include data flash memory, and what are its key characteristics?
Yes, the R5F102A9DSP#X0 includes 2 KB of data flash memory. It supports background operation (BGO), allowing CPU execution during erase/write cycles. Rated for 1,000,000 rewrite cycles at full VDD range (1.8–5.5 V), it enables reliable parameter storage, firmware updates, and data logging without external EEPROM - a feature absent in the R5F103 series.
What safety features does the R5F102A9DSP#X0 provide for industrial applications?
The R5F102A9DSP#X0 includes CRC calculation hardware, RAM guard, and SFR guard - all verified in the RL78/G12 datasheet for functional safety support. These features detect memory corruption and unauthorized register access, aiding compliance with IEC 61508 SIL2 requirements for industrial control systems without requiring external safety monitors.
How many analog input channels does the R5F102A9DSP#X0 support, and what reference options are available?
The R5F102A9DSP#X0 supports 8 analog input channels (ANI0–ANI3, ANI16–ANI19) with 10-bit resolution. It provides internal reference voltages AVREFP (+) and AVREFM (–), plus a fixed 1.45 V internal reference. The A/D converter operates across the full 1.8–5.5 V supply range and includes an integrated temperature sensor for thermal compensation.
What is the package type and pin count of the R5F102A9DSP#X0, and is it pin-compatible with other RL78/G12 variants?
The R5F102A9DSP#X0 uses a 30-pin plastic LSSOP package (7.62 mm × 5.3 mm, 0.65 mm pitch) with embossed tape packaging (#X0). It is pin-compatible with other 30-pin RL78/G12 devices in the same family (e.g., R5F102AAASP#V0, R5F103A9DSP#X0), sharing identical pin functions and layout - enabling drop-in replacement where peripheral requirements align.
R5F102A9DSP#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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F102A9DSP#X0 FAQ
1.How can I place an order for R5F102A9DSP#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F102A9DSP#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 R5F102A9DSP#X0 reliable?
The price and inventory of R5F102A9DSP#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F102A9DSP#X0 is usually 5 days.
3.What payment methods are accepted for R5F102A9DSP#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F102A9DSP#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F102A9DSP#X0?
R5F102A9DSP#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F102A9DSP#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 R5F102A9DSP#X0?
For technical support, including R5F102A9DSP#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F102A9DSP#X0 requirements.
6.How does Aetrix verify that R5F102A9DSP#X0 is sourced from the original manufacturer or authorized distributors?
All R5F102A9DSP#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 R5F102A9DSP#X0 meets industry standards.
7.What is the process for return or replacement of R5F102A9DSP#X0?
All R5F102A9DSP#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F102A9DSP#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 R5F102A9DSP#X0 part is unused and in its original packaging.
Return procedure for R5F102A9DSP#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F102A9DSP#X0 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
