Renesas R5F101AAASP#10
- Part No.:
- R5F101AAASP#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 30-LSSOP (0.240", 6.10mm Width)
- Datasheet:
-
R5F101AAASP#10.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 30LSSOP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F101AAASP#10 from Renesas is a 30-pin, 16 KB flash, data-flash-free RL78/G13 16-bit microcontroller with ultra-low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD mode), 1.6–5.5 V supply, and integrated 10-bit ADC (6 channels), UART, I²C, and 16-bit timers - deployed in battery-powered sensor nodes and industrial control interfaces.
For engineers reviewing the R5F101AAASP#10 datasheet, R5F101AAASP#10 pinout, R5F101AAASP#10 application, or R5F101AAASP#10 equivalent, key selection criteria include its LSSOP-30 package, absence of on-chip data flash, -40°C to +85°C industrial-grade temperature range, and support for SNOOZE mode wake-up via peripheral interrupts.
Technical Context
The R5F101AAASP#10 implements the RL78 CPU core with 3-stage pipeline CISC architecture, enabling instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock). It integrates a 12-bit interval timer, real-time clock with calendar/alarm, and watchdog timer driven by dedicated low-speed oscillator.
Its memory subsystem includes 16 KB code flash (1 KB block size), 2 KB RAM, and no data flash - distinguishing it from R5F100x variants. Power management features HALT, STOP, and SNOOZE modes, with on-chip POR and 14-level LVD supporting robust reset and voltage monitoring in variable-supply environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic timing and low-energy per instruction. |
| Max Operating Frequency | 32 MHz - delivers 41 DMIPS performance while maintaining sub-100 μA/MHz active current. |
| Flash Memory | 16 KB code flash (1 KB erase blocks); supports self-programming with boot swap and flash shield window. |
| RAM Size | 2 KB on-chip RAM - sufficient for real-time control stacks and small buffer applications without external memory. |
| ADC Resolution & Channels | 10-bit SAR ADC with 6 analog input channels and internal 1.45 V reference - suitable for precision sensor interfacing. |
| Supply Voltage Range | 1.6 V to 5.5 V - enables direct interface with Li-ion, alkaline, and industrial 3.3/5 V rails without level-shifting. |
| Operating Temperature | -40°C to +85°C (Industrial A-grade) - qualified for deployment in HVAC controls, smart meters, and factory automation. |
Pinout & Package
Package: 30-pin plastic LSSOP (7.62 mm, 0.65-mm pitch), JEDEC MS-013AC compliant, 1.27 mm height - optimized for space-constrained industrial PCBs with hand-soldering compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10 | SCK00 / SCL00 | Shared SPI clock or I²C clock line - enables dual-interface peripheral connectivity with software-configurable function. |
| P11 | SI00 / RxD0 / TOOLRxD / SDA00 | Multi-function pin supporting SPI data-in, UART receive, debug serial input, and I²C data - simplifies board routing and reduces pin count. |
| P20 | ANI0 / AVREFP | Analog input channel 0 and positive ADC reference voltage input - allows ratiometric sensing or external reference biasing. |
| P21 | ANI1 / AVREFM | Analog input channel 1 and negative ADC reference voltage input - supports differential measurement or ground-referenced inputs. |
| P22 | ANI2 | Analog input channel 2 - expands sensor interface capability without external multiplexers. |
| VDD | Power Supply | Main digital supply (1.6–5.5 V); decoupling required within 5 mm for stable 32 MHz operation. |
| VSS | Ground | Digital ground reference; must be connected to low-impedance plane to minimize noise coupling into ADC/timers. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA typical current with RTC + LVD active - extends battery life to years in periodic wake-up sensor applications. |
| SNOOZE mode operation | Permits UART/I²C/SPI peripherals to operate autonomously while CPU remains halted - reduces firmware overhead for polling tasks. |
| On-chip high-accuracy oscillator | +/-1.0% tolerance over -20°C to +85°C at 32 MHz - eliminates need for external crystal in cost-sensitive designs. |
| Hardware DMA controller | 2-channel DMA with 2-clock transfer between SFR and RAM - enables zero-CPU-cycle data movement for ADC-to-memory or UART buffering. |
| Integrated real-time clock (RTC) | Calendar function (99-year range), alarm, and clock correction - provides time-stamped logging without external RTC IC. |
Applications
| Smart Thermostat Interface | Industrial Sensor Node |
|---|---|
|
Use Scenario: Local temperature/humidity sensing with wireless uplink and display control in residential HVAC systems. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling, LCD driver timing, UART-based Zigbee/NB-IoT module interface, and RTC-based scheduling. Use Value: 16 KB flash accommodates protocol stacks and UI logic; SNOOZE mode enables background UART receive while CPU sleeps, reducing average power to <10 μA. |
Use Scenario: Battery-powered vibration/temperature monitor mounted on rotating machinery in predictive maintenance systems. IC Role / Device Role / Timing Role: Data acquisition engine capturing accelerometer samples via ADC, timestamping with RTC, and triggering BLE transmission on threshold events. Use Value: 0.57 μA STOP mode with RTC active ensures multi-year battery life; 10-bit ADC resolution captures subtle amplitude changes in mechanical signatures. |
| Programmable Logic Controller (PLC) I/O Module | Energy Meter Communication Hub |
|
Use Scenario: DIN-rail-mounted digital input/output expansion module for compact PLCs handling 24 V DC field signals. IC Role / Device Role / Timing Role: Isolation interface manager translating optocoupler outputs to SPI/I²C bus, performing debounce, and reporting status via RS-485. Use Value: 66 μA/MHz active current enables thermal design without heatsinking; LVD with 14 selectable thresholds protects against brown-out during industrial transients. |
Use Scenario: Sub-metering gateway aggregating consumption data from multiple CT sensors and forwarding via HAN (Home Area Network) protocols. IC Role / Device Role / Timing Role: Central coordinator synchronizing ADC sampling across 6 current/voltage channels, computing RMS values, and managing secure DLMS/COSEM messaging. Use Value: Integrated 10-bit ADC with internal reference eliminates external precision references; 32 MHz operation ensures real-time computation of harmonic content up to 50th order. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100AAASP#10 | Identical package and pinout, but includes 4 KB data flash and 2 KB RAM (vs. R5F101AAASP#10's 2 KB RAM only, no data flash). | Required where firmware requires non-volatile parameter storage (e.g., calibration data, metering tariffs) without external EEPROM. | Select R5F100AAASP#10 if data flash is needed; otherwise R5F101AAASP#10 reduces BOM cost and simplifies flash programming flow. |
| RL78/G14 R5F104BAASP#10 | Same LSSOP-30 package, 32 KB flash, 4 KB RAM, adds capacitive touch sensing and enhanced EMI immunity - but consumes ~10% higher active current. | Suitable for human-interface-rich devices (touch buttons, LED dimming) where added peripherals justify power trade-off. | Choose R5F104BAASP#10 only when touch I/O or extended memory is mandatory; R5F101AAASP#10 remains optimal for pure control/sensing roles. |
Compared with R5F100AAASP#10, the R5F101AAASP#10 eliminates data flash to reduce cost and simplify qualification, while retaining identical low-power modes and peripheral set; versus R5F104BAASP#10, it trades touch capability and memory headroom for lower static power and smaller footprint in resource-constrained embedded nodes.
Availability
R5F101AAASP#10 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat interfaces, and programmable logic controller I/O modules requiring stable component supply and long-term production continuity.
Supply support for R5F101AAASP#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 is a global semiconductor leader specializing in microcontrollers, analog, and power solutions for automotive, industrial, and IoT markets.
The RL78/G13 product line delivers true low-power 16-bit MCUs targeting cost-sensitive, battery-operated, and industrial control applications - emphasizing energy efficiency, integrated peripherals, and simplified development.
FAQ
Does R5F101AAASP#10 include on-chip data flash memory?
No, R5F101AAASP#10 does not include data flash memory. It is part of the "101" series designation indicating data flash omission, unlike the "100" series (e.g., R5F100AAASP#10) which integrates 4 KB data flash. This makes R5F101AAASP#10 ideal for applications storing configuration externally or using code flash for infrequent updates.
What is the maximum operating frequency and associated current consumption of R5F101AAASP#10?
R5F101AAASP#10 operates up to 32 MHz with 41 DMIPS performance and typical active current of 66 μA/MHz at VDD = 3.0 V and TA = 25°C. Its ultra-low-power design maintains this efficiency across the full 1.6–5.5 V supply range, enabling consistent performance in varying battery conditions.
Which communication interfaces are supported by R5F101AAASP#10?
R5F101AAASP#10 supports UART (with LIN-bus capability), I²C (Simplified I²C), and CSI (Renesas' SPI-compatible interface) - with 2 UART channels, up to 3 I²C channels, and up to 2 CSI channels available depending on pin mapping. All are configurable in software and share pins with GPIO functions.
Is R5F101AAASP#10 pin-compatible with any other RL78/G13 variants?
Yes, R5F101AAASP#10 is pin-compatible with all 30-pin LSSOP RL78/G13 variants sharing the PLSP0030JB-B package, including R5F100AAASP#10 and R5F101AGASP#10. Pin functions match exactly; differences lie solely in memory configuration and temperature grade - enabling drop-in replacement where data flash is unused.
What debug and programming interfaces does R5F101AAASP#10 support?
R5F101AAASP#10 supports on-chip debugging via the single-wire debug (SWD) interface using the TOOL0/TOOL1 pins, compatible with Renesas E2 emulator and CS+ IDE. It also supports self-programming of code flash through user firmware, with boot swap and flash shield window functions enabled for secure firmware updates.
R5F101AAASP#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 30-LSSOP (0.240", 6.10mm Width)
- Series:
- RL78/G13
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 32MHz
- Connectivity:
- CSI, I2C, LINbus, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 21
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 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:
R5F101AAASP#10 FAQ
1.How can I place an order for R5F101AAASP#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101AAASP#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 R5F101AAASP#10 reliable?
The price and inventory of R5F101AAASP#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101AAASP#10 is usually 5 days.
3.What payment methods are accepted for R5F101AAASP#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101AAASP#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101AAASP#10?
R5F101AAASP#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101AAASP#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 R5F101AAASP#10?
For technical support, including R5F101AAASP#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101AAASP#10 requirements.
6.How does Aetrix verify that R5F101AAASP#10 is sourced from the original manufacturer or authorized distributors?
All R5F101AAASP#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 R5F101AAASP#10 meets industry standards.
7.What is the process for return or replacement of R5F101AAASP#10?
All R5F101AAASP#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101AAASP#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 R5F101AAASP#10 part is unused and in its original packaging.
Return procedure for R5F101AAASP#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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