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Renesas R5F103AAASP#50
- Part No.:
- R5F103AAASP#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 30-LSSOP (0.240", 6.10mm Width)
- Datasheet:
-
R5F103AAASP#50.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 30LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,950
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Product details
Overview
R5F103AAASP#50 from Renesas is a 30-pin LSSOP packaged 16-bit RL78/G12 microcontroller for consumer-grade embedded control, featuring 16 KB code flash, 256 B RAM, 8-channel 10-bit A/D converter, 1-channel UART, and ultra-low power consumption (63 μA/MHz) across 1.8–5.5 V operation. It targets battery-powered sensor nodes and appliance control panels requiring compact footprint and deterministic real-time response.
For engineers reviewing the R5F103AAASP#50 datasheet, R5F103AAASP#50 pinout, R5F103AAASP#50 application, or R5F103AAASP#50 equivalent, key selection criteria include its 30-pin LSSOP package, absence of data flash memory, single UART channel, lack of DMA controller, and ±5.0% high-speed on-chip oscillator accuracy over –40°C to +85°C.
Technical Context
The R5F103AAASP#50 implements the RL78 CPU core with 3-stage pipeline CISC architecture, 1 MB address space, and 8-bit register banks. It operates in HS/LS clock modes using either external crystal (1–20 MHz) or internal oscillator (1–24 MHz), with reset sourced from POR, LVD, watchdog, or RESET pin.
Peripheral integration includes TAU timer unit with 8 channels (supporting PWM), 12-bit interval timer, window watchdog, on-chip debug interface, and programmable clock/buzzer output. No CRC, RAM guard, or SFR guard functions are present-distinguishing it from R5F102 variants.
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 connection to Li-ion, AA, or USB-supplied systems without level-shifting |
| Flash Memory | 16 KB code flash - sufficient for firmware with BLE stack or motor control algorithms |
| RAM Size | 256 B - constrains real-time task count and buffer depth in interrupt handlers |
| A/D Converter | 10-bit resolution, 8 input channels - enables simultaneous monitoring of temperature, voltage, and current sensors |
| UART Channels | 1 channel - supports basic host communication or debug console, no dual-serial redundancy |
| Oscillator Accuracy | ±5.0% (–40°C to +85°C) - requires external crystal for time-critical protocols like Modbus RTU |
| Power Consumption | 63 μA/MHz - extends battery life in always-on sensor nodes beyond 5 years on CR2032 |
Pinout & Package
Package: 30-pin plastic LSSOP (7.62 mm, 0.65-mm pitch), RoHS-compliant, surface-mountable with standard reflow profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P20/ANI0/AVREFP | Analog reference positive input | Provides stable reference for A/D conversion; must be decoupled with 0.1 µF capacitor |
| P01/ANI16/TO00/RxD1 | Multi-function I/O (A/D input, timer output, UART receive) | Shared pin requires configuration via PIOR register; default function depends on reset state |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Serial data input / UART receive / I²C data | Enables shared physical layer for debug (TOOLRxD) and peripheral comms (RxD0/SDA00) |
| P12/SO00/TxD0/TOOLTxD | Serial data output / UART transmit / debug output | Supports in-system programming and runtime logging without dedicated debug header |
| RESET | Active-low reset input | Accepts external push-button or supervisor IC signal; internal pull-up enabled by default |
| VDD / VSS | Power supply / ground | Dual VDD/VSS pair ensures noise immunity; requires local 0.1 µF + 4.7 µF decoupling per supply rail |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT/STOP/SNOOZE modes | Reduces active current to sub-μA range during idle, enabling multi-year battery operation in wireless sensors |
| On-chip high-speed oscillator (1–24 MHz) | Eliminates external crystal for cost-sensitive applications where ±5% timing tolerance is acceptable |
| 8-channel 10-bit A/D converter with internal reference | Measures analog signals without external voltage reference, simplifying BOM for HVAC or appliance controls |
| Programmable clock/buzzer output (PCLBUZ0/PCLBUZ1) | Generates audible alerts or precise timing signals directly from GPIO, reducing need for external drivers |
| Key interrupt support (KR0–KR9) | Scans up to 10 mechanical keys with hardware debouncing, ideal for remote controls and panel interfaces |
| On-chip debug interface (via TOOL0/TOOLRxD/TOOLTxD) | Enables full SWD-style debugging using only three pins, eliminating JTAG header footprint |
Applications
| Home Appliance Control | Industrial Sensor Node |
|---|---|
Use Scenario: Microcontroller in washing machine main board managing motor drive, water level sensing, and user interface. IC Role / Device Role / Timing Role: Real-time execution of PID motor control loop at 1 kHz while sampling 6 analog sensors and updating LED display. Use Value: 63 μA/MHz operation extends standby power budget; 16 KB flash accommodates field-upgradable firmware with safety checks. | Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and CO₂ in factory corridors. IC Role / Device Role / Timing Role: Low-power scheduler waking every 30 seconds to sample sensors, process data, and transmit via UART to gateway. Use Value: SNOOZE mode reduces average current to 2.1 μA; integrated A/D eliminates external ADC, cutting PCB area by 25%. |
| Smart Lighting Controller | Consumer Remote Control |
Use Scenario: Dimmable LED driver in smart bulb housing with touch slider and Bluetooth co-processor. IC Role / Device Role / Timing Role: PWM generation for TRIAC dimming, capacitive touch sensing, and UART command parsing from BLE module. Use Value: 8-channel A/D supports simultaneous slider position and thermal monitoring; PCLBUZ0 drives piezo feedback tone. | Use Scenario: IR remote for set-top box with button matrix, backlight, and low-battery indicator. IC Role / Device Role / Timing Role: Scanning 12-key matrix, driving 3-digit LED display, encoding NEC protocol bursts, and detecting battery voltage drop. Use Value: Key interrupt hardware reduces CPU load by 70%; 1.8 V minimum operation preserves functionality down to 1.9 V battery voltage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F102AAASP#50 | Includes 2 KB data flash, DMA controller, CRC engine, and ±1.0% oscillator accuracy; same pinout and package | Required for firmware-over-the-air updates or checksum-verified data logging | Select when field firmware updates or high-accuracy timing (e.g., IR carrier generation) are mandatory |
| R5F103AAFSB#50 | Same core and peripherals but in 32-pin HWQFN (4 × 4 mm, 0.5 mm pitch); adds two extra I/O pins and improved thermal dissipation | Suitable for space-constrained designs needing additional GPIO or better power handling | Choose when PCB layout allows smaller footprint and thermal margin exceeds 45°C ambient |
Compared with R5F102AAASP#50, the R5F103AAASP#50 trades data flash and precision timing for lower BOM cost and reduced qualification overhead; versus R5F103AAFSB#50, it offers identical functionality in a larger, more manufacturable LSSOP package suited for wave-soldered assemblies.
Availability
R5F103AAASP#50 is available at Aetrix Electronics and suitable for home appliance control, industrial sensor nodes, smart lighting controllers, and consumer remote controls requiring stable component supply across multi-year production cycles.
Supply support for R5F103AAASP#50 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, battery-operated consumer and industrial control applications where code density, peripheral integration, and energy efficiency outweigh raw performance.
FAQ
What is the maximum operating frequency of the R5F103AAASP#50?
The R5F103AAASP#50 supports a maximum system clock frequency of 24 MHz using its high-speed on-chip oscillator. When driven by an external crystal, the maximum is 20 MHz under 2.7–5.5 V supply conditions. Instruction execution time ranges from 0.04167 μs (24 MHz) to 1 μs (1 MHz), configurable via clock source selection registers.
Does the R5F103AAASP#50 include data flash memory?
No, the R5F103AAASP#50 does not include data flash memory. Unlike the R5F102xx series, all R5F103xx parts omit the 2 KB data flash block. User data storage must be implemented externally or in reserved code flash sectors with appropriate wear-leveling software.
How many UART interfaces does the R5F103AAASP#50 support?
The R5F103AAASP#50 supports exactly one UART interface (UART0). It does not include UART1 or UART2, which are present only in higher-pin-count RL78/G12 variants. This single UART is multiplexed on pins P11 (RxD0) and P12 (TxD0), and supports standard asynchronous communication up to 1 Mbps.
What is the A/D converter resolution and channel count on the R5F103AAASP#50?
The R5F103AAASP#50 integrates an 8-channel, 10-bit successive-approximation A/D converter. It supports both single-ended and differential input modes, uses internal 1.45 V reference or AVREFP/AVREFM inputs, and includes temperature sensor output. Conversion time is 1.1 μs per sample at 10-bit resolution.
Is the R5F103AAASP#50 pin-compatible with other RL78/G12 30-pin variants?
Yes, the R5F103AAASP#50 shares identical pinout and package (30-pin LSSOP) with all other RL78/G12 30-pin parts including R5F102AAASP#50 and R5F103A9ASP#50. Peripheral function allocation follows the same mapping, though feature availability (e.g., data flash, DMA) varies by part number and must be verified in software initialization.
R5F103AAASP#50 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:
- Active
- Programmable:
- Not Verified
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 24MHz
- Connectivity:
- CSI, I2C, UART/USART
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 23
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- 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:
R5F103AAASP#50 FAQ
1.How can I place an order for R5F103AAASP#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F103AAASP#50 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 R5F103AAASP#50 reliable?
The price and inventory of R5F103AAASP#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F103AAASP#50 is usually 5 days.
3.What payment methods are accepted for R5F103AAASP#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F103AAASP#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F103AAASP#50?
R5F103AAASP#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F103AAASP#50 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 R5F103AAASP#50?
For technical support, including R5F103AAASP#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F103AAASP#50 requirements.
6.How does Aetrix verify that R5F103AAASP#50 is sourced from the original manufacturer or authorized distributors?
All R5F103AAASP#50 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 R5F103AAASP#50 meets industry standards.
7.What is the process for return or replacement of R5F103AAASP#50?
All R5F103AAASP#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F103AAASP#50, 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 R5F103AAASP#50 part is unused and in its original packaging.
Return procedure for R5F103AAASP#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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