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Renesas R5F103AAASP#70
- Part No.:
- R5F103AAASP#70
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 30-LSSOP (0.240", 6.10mm Width)
- Datasheet:
-
R5F103AAASP#70.pdf
- Description:
- 16-BIT GENERAL MCU RL78/G12 16K
- Quantity:
- Payment:
- Shipping:
Inventory:4,603
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Product details
Overview
R5F103AAASP#70 from Renesas Electronics is a 30-pin LSSOP packaged 16-bit RL78/G12 microcontroller designed for ultra-low-power general-purpose embedded control. It operates from 1.8 V to 5.5 V, delivers 31 DMIPS at 24 MHz, integrates 16 KB code flash and 256 B RAM, and supports 8-channel 10-bit A/D conversion - deployed in battery-powered sensor nodes and industrial HMI panels.
For engineers reviewing the R5F103AAASP#70 datasheet, R5F103AAASP#70 pinout, R5F103AAASP#70 application, or R5F103AAASP#70 equivalent, key selection criteria include its 30-pin LSSOP package, absence of data flash memory, single UART channel, no DMA controller, and ±5.0% high-speed on-chip oscillator accuracy over –40°C to +85°C.
Technical Context
The R5F103AAASP#70 implements the RL78 CPU core with a 3-stage CISC pipeline, 1 MB address space, and selectable instruction execution time (0.04167 µs at 24 MHz). It uses a dedicated low-speed on-chip oscillator (15 kHz) for watchdog operation and supports main system clock sourcing from either external crystal (1–20 MHz) or internal high-speed oscillator (1–24 MHz).
Its peripheral set includes one UART channel, one simplified SPI (CSI) channel, no simplified I²C interface, an 8-channel 10-bit A/D converter with internal reference (1.45 V), and eight 16-bit timer channels - all configured without data flash, DMA, CRC, or RAM/SFR guard functions present in R5F102 variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Max Performance | 31 DMIPS at 24 MHz - enables real-time control loops in sub-100 µs intervals |
| Memory | 16 KB code flash (1 KB block size); no data flash; 256 B RAM - limits firmware update flexibility but reduces cost |
| Supply Voltage | 1.8 V to 5.5 V - supports direct Li-ion, 3.3 V, and 5 V rail operation without level shifting |
| A/D Converter | 10-bit resolution, 8 input channels, internal 1.45 V reference - suitable for analog sensor interfacing without external references |
| Oscillator Accuracy | ±5.0% over –40°C to +85°C (high-speed on-chip oscillator) - requires calibration or external crystal for timing-critical comms |
| Operating Temperature | –40°C to +85°C (A-grade) - qualified for consumer and industrial ambient environments |
Pinout & Package
Package: 30-pin plastic LSSOP (7.62 mm, 0.65-mm pitch), PLSP0030JB-B footprint, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P20/ANI0/AVREFP | Analog input / A/D positive reference | Primary analog input or precision reference source for 10-bit ADC |
| P01/ANI16/TO00/RxD1 | Analog input / Timer output / UART1 receive | Shared function pin supporting sensor input, PWM generation, or secondary UART |
| P00/ANI17/TI00/TxD1 | Analog input / Timer input / UART1 transmit | Enables dual-role use: analog sensing or full-duplex UART1 communication |
| P120/ANI19 | Analog input | Dedicated analog input channel with internal reference support |
| RESET | Active-low reset input | Asynchronous hardware reset with internal pull-up; accepts 1.8–5.5 V logic |
| P137/INTP0 | External interrupt input | Edge-triggered interrupt source for wake-up or event capture |
| P122/X2/EXCLK | Crystal oscillator input / external clock input | Supports 1–20 MHz crystal or buffered clock source for precise timing |
| P121/X1 | Crystal oscillator input | Completes crystal circuit; requires external load capacitors per layout guidelines |
| REGC | Voltage regulator capacitor terminal | Must connect 0.47–1 µF capacitor to VSS for stable internal LDO operation |
| VDD | Power supply | Single 1.8–5.5 V supply powers core, peripherals, and I/O simultaneously |
| VSS | Ground | Reference node for analog/digital domains; decoupling required near VDD pin |
| P60/SCLA0 | I²C clock output | Open-drain output for I²C bus clock; requires external pull-up resistor |
| P61/SDAA0 | I²C data I/O | Open-drain bidirectional I²C data line; shares pin with SCLA0 for bus arbitration |
| P31/TI03/TO03/INTP4/PCLBUZ0 | Timer input/output / interrupt / buzzer clock | Multi-function pin enabling PWM, edge counting, interrupt triggering, or audible feedback |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT/STOP/SNOOZE modes | 63 μA/MHz active current enables multi-year battery life in intermittent-sensing applications |
| On-chip high-speed oscillator (1–24 MHz) | Eliminates external crystal for cost-sensitive designs where ±5% timing tolerance is acceptable |
| 8-channel 10-bit A/D converter with internal 1.45 V reference | Reduces BOM count by removing external voltage reference ICs for basic sensor measurement |
| Programmable clock/buzzer output (PCLBUZ0/PCLBUZ1) | Generates precise audio tones or clock signals directly from timer hardware without CPU overhead |
| 12-bit interval timer + window watchdog timer | Provides deterministic periodic interrupts and fail-safe reset for safety-aware firmware execution |
Applications
| Smart Home Sensor Node | Industrial HMI Panel |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor transmitting data via UART to gateway. IC Role / Device Role / Timing Role: Main system controller executing sensor readout, ADC sampling, UART framing, and low-power state management. Use Value: 63 μA/MHz active current and STOP mode extend CR2032 battery life beyond 2 years; 10-bit ADC meets ±0.5°C accuracy requirement. |
Use Scenario: Local display and button interface for PLC-controlled machinery with LED indicators and buzzer alerts. IC Role / Device Role / Timing Role: Real-time UI coordinator handling touch/button inputs, driving LEDs, generating buzzer tones, and communicating status via UART. Use Value: PCLBUZ0 output drives audible feedback directly; 8 timer channels manage independent LED blink patterns and debounce timers without software polling. |
| White Goods Control Board | Energy Meter Front-End |
Use Scenario: Motor speed control and user interface in washing machine control module. IC Role / Device Role / Timing Role: Closed-loop motor controller using TO00/TO01 PWM outputs and ANI0–ANI3 analog inputs for current/voltage sensing. Use Value: Eight 16-bit timer channels support simultaneous PWM generation, input capture, and interval timing - eliminating need for external timer ICs. |
Use Scenario: AC voltage/current sampling and local display in residential electricity meter. IC Role / Device Role / Timing Role: Analog front-end processor acquiring 8-channel sensor data, computing RMS values, and updating LCD via parallel port emulation. Use Value: Internal 1.45 V reference ensures stable ADC performance across 1.8–5.5 V supply range; 16 KB flash accommodates metrology algorithm and communication stack. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F102AAASP#70 | Includes 2 KB data flash, DMA controller, CRC, RAM/SFR guard, ±1.0% oscillator accuracy, and simplified I²C interface | Required for field firmware updates, safety-critical checksumming, or higher-precision serial comms | Select when data logging, secure boot, or tighter timing tolerance is mandatory |
| R5F103A9ASP#70 | Same package and core, but with 12 KB code flash and identical peripheral set (no data flash, no DMA, ±5.0% oscillator) | Suitable for smaller firmware footprints where 16 KB is excessive and cost reduction is prioritized | Choose for cost-optimized designs with <12 KB application code and no runtime reprogramming needs |
Compared with R5F103AAASP#70, R5F102AAASP#70 adds data flash and safety features at higher cost and power, while R5F103A9ASP#70 reduces flash capacity for lower unit price - both retain the same 30-pin LSSOP footprint and core functionality.
Availability
R5F103AAASP#70 is available at Aetrix Electronics and suitable for smart home sensor nodes, industrial HMI panels, white goods control boards, and energy meter front-ends requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for R5F103AAASP#70 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 control applications - delivering optimized performance-per-milliwatt for battery-operated and energy-harvesting systems.
FAQ
What is the maximum operating frequency and performance of the R5F103AAASP#70?
The R5F103AAASP#70 achieves a maximum operating frequency of 24 MHz using its high-speed on-chip oscillator and delivers 31 DMIPS of processing performance. Its minimum instruction execution time is 0.04167 µs under these conditions, enabling responsive real-time control in applications such as motor drive and sensor fusion.
Does the R5F103AAASP#70 include data flash memory?
No, the R5F103AAASP#70 does not include data flash memory. This distinguishes it from the R5F102xx series, which integrates 2 KB of data flash. The absence of data flash simplifies firmware architecture but precludes in-field parameter storage or over-the-air update capability without external memory.
What are the key differences between R5F103AAASP#70 and R5F102AAASP#70?
The R5F103AAASP#70 lacks data flash, DMA controller, CRC unit, RAM/SFR guard, and simplified I²C interface present in R5F102AAASP#70. Its high-speed on-chip oscillator accuracy is ±5.0% versus ±1.0% in the R5F102 variant, making it suitable for less timing-critical applications where cost and power efficiency are prioritized.
Which communication interfaces are supported by the R5F103AAASP#70?
The R5F103AAASP#70 supports one UART channel, one simplified SPI (CSI) channel, and one I²C bus (SCLA0/SDAA0 pins). It does not include simplified I²C or additional UART/CSI channels found in R5F102 variants - limiting multi-interface concurrent operation but reducing pin count and complexity.
What is the analog input capability of the R5F103AAASP#70?
The R5F103AAASP#70 features an 8-channel, 10-bit A/D converter with internal 1.45 V reference voltage and support for AVREFP/AVREFM differential reference inputs. It accepts analog signals from 0 V to VDD or referenced to internal 1.45 V, enabling accurate sensor measurements without external reference components.
R5F103AAASP#70 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:
- -
- 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:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F103AAASP#70 FAQ
1.How can I place an order for R5F103AAASP#70 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F103AAASP#70 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#70 reliable?
The price and inventory of R5F103AAASP#70 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F103AAASP#70 is usually 5 days.
3.What payment methods are accepted for R5F103AAASP#70?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F103AAASP#70 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F103AAASP#70?
R5F103AAASP#70 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F103AAASP#70 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#70?
For technical support, including R5F103AAASP#70 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F103AAASP#70 requirements.
6.How does Aetrix verify that R5F103AAASP#70 is sourced from the original manufacturer or authorized distributors?
All R5F103AAASP#70 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#70 meets industry standards.
7.What is the process for return or replacement of R5F103AAASP#70?
All R5F103AAASP#70 units undergo pre-shipment inspection (PSI). If there is an issue with R5F103AAASP#70, 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#70 part is unused and in its original packaging.
Return procedure for R5F103AAASP#70:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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