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Renesas R5F101AEASP#X0
- Part No.:
- R5F101AEASP#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 30-LSSOP (0.240", 6.10mm Width)
- Datasheet:
-
R5F101AEASP#X0.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 30LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,733
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Product details
Overview
R5F101AEASP#X0 from Renesas is a 40-pin LSSOP-packaged RL78/G13 16-bit microcontroller with 64 KB flash, 4 KB data flash, 3 KB RAM, and true low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD mode) for battery-powered industrial sensors and metering systems.
For engineers reviewing the R5F101AEASP#X0 datasheet, R5F101AEASP#X0 pinout, R5F101AEASP#X0 application, or R5F101AEASP#X0 equivalent, key selection criteria include its 1.6–5.5 V supply range, integrated 10-bit ADC (26 channels), real-time clock with calendar/alarm, and support for LIN-bus UART communication in compact LSSOP packaging.
Technical Context
The R5F101AEASP#X0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (@32 MHz high-speed oscillator) to 30.5 μs (@32.768 kHz subsystem clock). It integrates DMA (2 channels), multiplier/divider/MAC units, and background data flash rewriting (BGO).
Its peripheral set includes up to 16× 16-bit timers, 1× 12-bit interval timer, 1× real-time clock with calendar and correction, 1× watchdog timer, and serial interfaces: CSI (SPI-like, up to 8 ch), UART/LIN (up to 4 ch), and I²C (up to 10 ch), all configurable via on-chip SFRs without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Flash Memory | 64 KB code flash with 1 KB block size, self-programming, and flash shield window security |
| Data Flash | 4 KB data flash with background operation (BGO), 1M rewrite cycles (TYP), 1.8–5.5 V programming voltage |
| RAM | 3 KB on-chip RAM; flash library uses fixed RAM area starting at FEF00H |
| Power Consumption | 66 μA/MHz active current; 0.57 μA in STOP mode with RTC + LVD enabled |
| ADC | 10-bit resolution A/D converter with 26 analog inputs, internal 1.45 V reference, and temperature sensor |
| Operating Voltage | 1.6 V to 5.5 V single-supply operation across -40°C to +85°C ambient range (A-grade) |
Pinout & Package
Package: 40-pin plastic LSSOP (7.62 mm × 9.9 mm, 0.65-mm pitch), JEDEC MS-013AC compliant, surface-mountable with exposed thermal pad option (not applicable to R5F101AEASP#X0).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | Port 10 / SPI Clock / I²C Clock | Multi-function pin supporting master/slave SPI clock or I²C bus clock; enables dual-protocol serial interface sharing |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Port 11 / SPI Input / UART RX / Debug RX / I²C Data | High-density pin combining debug, communication, and peripheral functions; supports tool connection without dedicated debug header |
| P20/ANI0/AVREFP | Analog Input 0 / ADC Reference Positive | Configurable as first ADC channel or positive reference input; allows ratiometric measurement with external sensor bridges |
| P21/ANI1/AVREFM | Analog Input 1 / ADC Reference Negative | Configurable as second ADC channel or negative reference; enables differential ADC measurements with AVREFP |
| P22/ANI2 | Analog Input 2 | Dedicated analog input channel; usable with internal temperature sensor or external signal conditioning |
| VDD | Positive Power Supply | Primary 1.6–5.5 V supply rail; powers core, flash, RAM, and most peripherals; decoupling required per datasheet layout guidelines |
| VSS | Ground | Digital ground reference; separate analog ground not provided - system-level separation required for precision ADC use |
| RESET | Active-Low Reset Input | Asynchronous reset pin accepting external pushbutton or supervisor IC; internal POR/LVD also asserts reset under fault conditions |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power STOP mode | 0.57 μA retention with RTC + LVD active enables >10-year battery life in gas/water meters |
| On-chip high-accuracy oscillator | +/-1.0% tolerance over 1.8–5.5 V and -20 to +85°C eliminates need for external crystal in cost-sensitive designs |
| Background data flash rewriting | Allows firmware updates or logging while executing application code from main flash - no interrupt latency penalty |
| Integrated LIN-bus UART | Hardware LIN 2.2/SAE J2602 compliance with automatic sync-break detection reduces MCU overhead in automotive body electronics |
| Multi-voltage I/O capability | I/O pins tolerate 1.8 V, 2.5 V, and 3 V logic levels - simplifies interfacing with mixed-voltage sensors and transceivers |
Applications
| Smart Utility Metering | Industrial Sensor Node |
|---|---|
|
Use Scenario: Battery-powered water/gas meter with pulse counting, temperature compensation, and wireless reporting. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling, RTC-based wake-up scheduling, LIN communication to display module, and secure flash logging of consumption data. Use Value: 0.57 μA STOP mode extends CR2450 battery life beyond 12 years; integrated RTC eliminates external timekeeping IC. |
Use Scenario: DIN-rail mounted temperature/humidity sensor with Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Sensor fusion processor acquiring analog signals, performing linearization, and formatting Modbus frames using UART with hardware parity generation. Use Value: 26-channel 10-bit ADC supports multi-sensor analog front-end; 1.6–5.5 V operation accommodates wide-range industrial power supplies. |
| Home Appliance Control | Medical Diagnostic Device |
|
Use Scenario: Smart washing machine control board requiring motor timing, user interface, and safety monitoring. IC Role / Device Role / Timing Role: Real-time motion controller using 16-bit timers for precise PWM generation, watchdog supervision, and LVD-triggered shutdown on brownout. Use Value: HALT/STOP/SNOOZE modes reduce standby power; on-chip BCD correction accelerates display digit formatting. |
Use Scenario: Portable blood glucose monitor with electrochemical sensor interface and LCD display. IC Role / Device Role / Timing Role: Analog signal conditioner and data logger using internal temperature sensor for calibration compensation and data flash storage of test history. Use Value: Integrated 1.45 V reference ensures stable ADC accuracy across battery discharge; 4 KB data flash stores >1000 test records with wear leveling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100AEASP#X0 | Same package and pinout; includes 4 KB data flash (identical), but adds 8 KB code flash (72 KB total vs. 64 KB) | Higher code density supports larger protocol stacks (e.g., full BLE host stack) or dual-application firmware images | Select when additional flash headroom is needed for field-upgradable features without PCB change |
| RL78/G14 R5F104BAASP#X0 | Same LSSOP-40 package; adds 32-bit multiply/divide unit, enhanced DMA (4 ch), and 16 KB RAM - but requires 2.7–5.5 V supply | Required for computationally intensive tasks like FFT-based vibration analysis or real-time PID tuning with floating-point math | Choose when algorithm complexity exceeds RL78/G13 capabilities and higher VDD minimum is acceptable |
Compared with R5F100AEASP#X0, the R5F101AEASP#X0 trades 8 KB flash for lower cost and identical low-power profile; versus RL78/G14, it delivers better sub-2V operation and smaller memory footprint at the expense of advanced compute features.
Availability
R5F101AEASP#X0 is available at Aetrix Electronics and suitable for smart utility metering, industrial sensor nodes, and home appliance control requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.
Supply support for R5F101AEASP#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 is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G13 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated applications where extended runtime and integration of analog peripherals are critical design requirements.
FAQ
What is the maximum operating frequency of the R5F101AEASP#X0?
The R5F101AEASP#X0 supports up to 32 MHz operation using the high-speed on-chip oscillator. Its minimum instruction execution time is 0.03125 μs at this frequency, delivering 41 DMIPS performance. The oscillator accuracy is ±1.0% across 1.8–5.5 V and -20 to +85°C ambient conditions.
Does the R5F101AEASP#X0 include an integrated temperature sensor?
Yes, the R5F101AEASP#X0 includes an on-chip temperature sensor usable with the 10-bit ADC. It is selectable only in HS (high-speed main) mode and provides calibrated readings referenced to the internal 1.45 V bandgap voltage, enabling ambient temperature monitoring without external components.
Can the R5F101AEASP#X0 operate from a 1.8 V supply?
Yes, the R5F101AEASP#X0 operates across 1.6 V to 5.5 V, making it fully functional at 1.8 V. At this voltage, it maintains full peripheral operation including ADC, UART, timers, and flash programming - critical for single-cell Li-ion or NiMH battery systems.
How many analog input channels does the R5F101AEASP#X0 support?
The R5F101AEASP#X0 supports up to 26 analog input channels for its 10-bit ADC. These include dedicated ANI0–ANI2 pins plus multiplexed port pins; the exact count depends on package variant - the 40-pin LSSOP version (R5F101AEASP#X0) implements 26 channels as confirmed in the RL78/G13 datasheet Section 1.1.
Is data flash rewriting possible while executing code from main flash on the R5F101AEASP#X0?
Yes, the R5F101AEASP#X0 supports background operation (BGO) for data flash rewriting. Instructions can be fetched and executed from code flash memory while simultaneously erasing or programming data flash sectors - enabling seamless firmware updates and data logging without halting application execution.
R5F101AEASP#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 30-LSSOP (0.240", 6.10mm Width)
- Series:
- RL78/G13
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 4K 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:
R5F101AEASP#X0 FAQ
1.How can I place an order for R5F101AEASP#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101AEASP#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 R5F101AEASP#X0 reliable?
The price and inventory of R5F101AEASP#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101AEASP#X0 is usually 5 days.
3.What payment methods are accepted for R5F101AEASP#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101AEASP#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101AEASP#X0?
R5F101AEASP#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101AEASP#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 R5F101AEASP#X0?
For technical support, including R5F101AEASP#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101AEASP#X0 requirements.
6.How does Aetrix verify that R5F101AEASP#X0 is sourced from the original manufacturer or authorized distributors?
All R5F101AEASP#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 R5F101AEASP#X0 meets industry standards.
7.What is the process for return or replacement of R5F101AEASP#X0?
All R5F101AEASP#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101AEASP#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 R5F101AEASP#X0 part is unused and in its original packaging.
Return procedure for R5F101AEASP#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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