Renesas R5F101FADFP#30
- Part No.:
- R5F101FADFP#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
R5F101FADFP#30.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 44LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F101FADFP#30 from Renesas is a 44-pin LQFP-44, 32-bit RL78/G13 microcontroller with 96 KB flash, 4 KB data flash, and 4 KB RAM, operating from 1.6 V to 5.5 V at up to 32 MHz (41 DMIPS), featuring ultra-low-power modes (0.57 μA RTC+LVD), 10-bit ADC (24 channels), and integrated UART/I²C/CSI interfaces - deployed in industrial sensor nodes and battery-powered control modules.
For engineers reviewing the R5F101FADFP#30 datasheet, R5F101FADFP#30 pinout, R5F101FADFP#30 application, or R5F101FADFP#30 equivalent, key selection criteria include its industrial-grade temperature range (–40°C to +85°C), absence of on-chip data flash (distinguishing it from R5F100x series), LQFP-44 package compatibility, and support for background data flash rewriting during program execution.
Technical Context
The R5F101FADFP#30 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting 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 peripheral set includes up to 24-channel 10-bit A/D converter with internal 1.45 V reference and temperature sensor, 2–4 channel DMA controller (2-cycle transfers between SFR and RAM), and serial interfaces: 2–4 UART/LIN channels, 3–10 I²C/Simplified I²C channels, and 2–8 CSI (SPI-compatible) channels - all configurable without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RL78 32-bit CISC with 3-stage pipeline; enables deterministic real-time response and code density advantage over ARM Cortex-M0+ in cost-sensitive embedded control. |
| Max Operating Frequency | 32 MHz (41 DMIPS); delivers sufficient compute headroom for sensor fusion, motor commutation, and protocol stack handling in compact industrial firmware. |
| Memory Configuration | 96 KB code flash + 4 KB RAM + no on-chip data flash; simplifies firmware update architecture where external EEPROM or flash handles non-volatile parameter storage. |
| Power Consumption | 66 μA/MHz active; 0.57 μA in STOP mode with RTC + LVD active; enables multi-year battery life in wireless sensor transmitters and portable diagnostics tools. |
| Analog Peripherals | 24-channel 10-bit ADC with internal 1.45 V reference and temperature sensor; supports direct thermal monitoring and precision analog signal acquisition without external references. |
| Operating Voltage & Temp | 1.6 V to 5.5 V supply; –40°C to +85°C ambient (Industrial D-grade); ensures robust operation across wide input rails and harsh factory-floor environments. |
| Serial Interfaces | 2 UART/LIN, 3 I²C, 2 CSI channels; provides native connectivity to RS-485 transceivers, I²C sensors, and SPI peripherals without glue logic or level shifters. |
Pinout & Package
Package: 44-pin LQFP (10 × 10 mm, 0.8-mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains support separate analog/digital supply routing; decoupling required per Renesas layout guidelines for noise immunity. |
| P00–P07, P10–P17, P20–P27, P30–P37, P40–P43 | General-purpose I/O ports | Configurable as CMOS input/output, N-ch open-drain (6 V tolerant), TTL buffer, or with internal pull-up; enables direct interface to 1.8/2.5/3.3 V logic. |
| P10/P11 | SCK00/SCL00 and SI00/RxD0 | Dual-function pins supporting hardware SPI clock and I²C clock (SCL00), plus SPI input and UART receive (RxD0); shared peripheral mapping reduces pin count overhead. |
| P20/P21 | ANI0/AVREFP and ANI1/AVREFM | Analog input channels 0 and 1, also serve as positive/negative ADC reference inputs; allows ratiometric measurement or external reference biasing. |
| RESET | Active-low reset input | Accepts external reset signal or internal POR/LVD assertion; synchronous deassertion prevents metastability during wake-up from low-power modes. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA with RTC + LVD active - enables decade-scale battery operation in remote monitoring devices without compromising timekeeping or safety supervision. |
| Background Data Flash Operation | Not applicable - R5F101FADFP#30 lacks on-chip data flash; eliminates BGO complexity but requires external non-volatile memory for parameter logging. |
| On-chip Debug Interface | Fully supported via single-wire debug (SWD) using dedicated pins; permits full JTAG-equivalent visibility without dedicated debug header footprint. |
| Hardware Multiply-Accumulate | 16×16→32-bit signed/unsigned multiply + 32-bit add; accelerates PID loop computation and digital filter execution in real-time control applications. |
| Real-Time Clock with Calendar | 99-year calendar, alarm, and clock correction - provides timestamped event logging and scheduled wake-up without external RTC IC or battery backup. |
Applications
| Industrial Sensor Node | Smart Thermostat Controller |
|---|---|
|
Use Scenario: Wireless temperature/humidity/pressure node in HVAC ducts with LoRaWAN backhaul and local display. IC Role / Device Role / Timing Role: Main system controller managing sensor readout, data preprocessing, radio interface timing, and low-power scheduling. Use Value: 0.57 μA STOP mode extends AA battery life beyond 5 years; integrated RTC enables precise reporting intervals; 24-channel ADC supports multi-sensor aggregation. |
Use Scenario: Residential thermostat with touch interface, Wi-Fi connectivity, and adaptive learning algorithms. IC Role / Device Role / Timing Role: Central MCU handling UI rendering, environmental sensing, communication stack, and heating/cooling actuation timing. Use Value: 41 DMIPS at 32 MHz supports responsive GUI and real-time PID control; 96 KB flash accommodates OTA firmware updates and feature-rich UI assets. |
| Programmable Logic Relay | Portable Diagnostic Tool |
|
Use Scenario: DIN-rail mounted relay module with configurable I/O, Modbus RTU, and LED status indicators. IC Role / Device Role / Timing Role: Deterministic I/O scheduler and protocol engine executing ladder logic scans and serial communication state machines. Use Value: RL78 CISC architecture delivers predictable 1–2 μs instruction latency critical for sub-10 ms scan cycles; 1.6–5.5 V operation tolerates brown-out conditions in industrial power rails. |
Use Scenario: Handheld automotive OBD-II scanner with Bluetooth, LCD, and button interface. IC Role / Device Role / Timing Role: Host processor managing USB/Bluetooth bridging, display refresh, button debouncing, and CAN message parsing. Use Value: Integrated UART/LIN and CSI interfaces eliminate external transceivers for OBD-II and display drivers; 4 KB RAM suffices for dual-buffered CAN message queues. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100FADFP#30 | Same package and pinout; includes 8 KB on-chip data flash and 8 KB RAM (vs. 4 KB RAM, no data flash in R5F101FADFP#30). | Preferred when firmware requires frequent parameter logging or field-upgradable calibration tables without external memory. | Select R5F100FADFP#30 if data flash persistence is mandatory; otherwise R5F101FADFP#30 reduces BOM cost and simplifies memory management. |
| RL78/G14 R5F11FADFP#30 | Enhanced RL78/G14 variant with 128 KB flash, 12 KB RAM, and additional peripherals including capacitive touch sensing and enhanced EMI immunity. | Suitable for next-generation designs requiring larger code space, more RAM, or human-interface features like proximity detection. | Choose RL78/G14 only when scaling firmware complexity or adding capacitive touch; R5F101FADFP#30 remains optimal for cost- and power-constrained legacy-compatible upgrades. |
Compared with R5F100FADFP#30, R5F101FADFP#30 trades data flash and extra RAM for lower unit cost and reduced power in STOP mode; versus RL78/G14, it offers proven reliability and smaller footprint for stable, volume-production industrial control.
Availability
R5F101FADFP#30 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostats, and programmable logic relays requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.
Supply support for R5F101FADFP#30 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 industrial, automotive, and IoT markets.
The RL78/G13 product line targets cost-sensitive, ultra-low-power general-purpose embedded control - delivering optimized balance of performance, energy efficiency, and integration for factory automation, home appliances, and building systems.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F101FADFP#30?
The R5F101FADFP#30 operates at up to 32 MHz with a measured performance of 41 DMIPS. This rating reflects its RL78 CPU core's 3-stage pipeline efficiency and is validated under standard test conditions (VDD = 3.3 V, TA = 25°C) per Renesas R01DS0131EJ0380 datasheet Section 1.1.
Does the R5F101FADFP#30 include on-chip data flash memory?
No, the R5F101FADFP#30 does not include on-chip data flash memory. As confirmed in the RL78/G13 datasheet Section 1.2 and part numbering scheme ('101' prefix denotes no data flash), this variant relies on external non-volatile memory or code flash emulation for parameter storage.
What is the industrial temperature grade and supply voltage range supported by the R5F101FADFP#30?
The R5F101FADFP#30 is rated for industrial operation from –40°C to +85°C (D-grade) and supports a wide supply voltage range of 1.6 V to 5.5 V. These specifications enable deployment in unregulated power environments such as 24 V DC industrial buses with local LDO regulation.
Which serial communication interfaces are integrated into the R5F101FADFP#30?
The R5F101FADFP#30 integrates two UART/LIN channels, three I²C/Simplified I²C channels, and two CSI (SPI-compatible) channels. All are implemented in hardware with independent baud rate generators and interrupt-capable status registers, eliminating software bit-banging overhead.
How many analog input channels and what ADC resolution does the R5F101FADFP#30 provide?
The R5F101FADFP#30 features a 10-bit successive-approximation ADC with up to 24 analog input channels (ANI0–ANI23), including dedicated AVREFP/AVREFM pins. It supports internal 1.45 V reference and on-die temperature sensor - both accessible without external components.
R5F101FADFP#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 44-LQFP
- 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:
- 31
- 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 10x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F101FADFP#30 FAQ
1.How can I place an order for R5F101FADFP#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101FADFP#30 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 R5F101FADFP#30 reliable?
The price and inventory of R5F101FADFP#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101FADFP#30 is usually 5 days.
3.What payment methods are accepted for R5F101FADFP#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101FADFP#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101FADFP#30?
R5F101FADFP#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101FADFP#30 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 R5F101FADFP#30?
For technical support, including R5F101FADFP#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101FADFP#30 requirements.
6.How does Aetrix verify that R5F101FADFP#30 is sourced from the original manufacturer or authorized distributors?
All R5F101FADFP#30 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 R5F101FADFP#30 meets industry standards.
7.What is the process for return or replacement of R5F101FADFP#30?
All R5F101FADFP#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101FADFP#30, 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 R5F101FADFP#30 part is unused and in its original packaging.
Return procedure for R5F101FADFP#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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