Renesas R5F100FAAFP#10
- Part No.:
- R5F100FAAFP#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
R5F100FAAFP#10.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 44LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F100FAAFP#10 from Renesas is a 44-pin LQFP-44, 96 KB flash, 8 KB data flash, 4 KB RAM RL78/G13 16-bit microcontroller operating at 32 MHz with 41 DMIPS performance, ultra-low power consumption (66 μA/MHz active, 0.57 μA RTC+LVD), and integrated peripherals including 10-bit ADC (24 channels), UART/LIN, I²C, SPI, RTC, and watchdog timer - deployed in smart home sensor hubs requiring low-power always-on sensing and local decision-making.
For engineers reviewing the R5F100FAAFP#10 datasheet, R5F100FAAFP#10 pinout, R5F100FAAFP#10 application, or R5F100FAAFP#10 equivalent, key selection criteria include its 44-pin LQFP package with 24 analog input channels, 96 KB code flash with self-programming and flash shield window, 8 KB data flash supporting background operation and 1M rewrite cycles, and industrial-grade temperature range (−40°C to +85°C) with LVD interrupt/reset across 14 voltage levels.
Technical Context
The R5F100FAAFP#10 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, enabling minimum instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock). It integrates dual-clock domains: high-speed on-chip oscillator (±1.0% accuracy, 1–32 MHz selectable) and dedicated low-speed oscillator for watchdog and RTC.
Peripherals are tightly coupled to the 1 MB address space and support concurrent operation - DMA controller (4 channels) enables zero-wait-state transfers between SFR and RAM in 2 clocks, while BGO allows full program execution during data flash rewriting. The 10-bit A/D converter includes internal 1.45 V reference and temperature sensor, usable only in HS mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 41 DMIPS @ 32 MHz |
| Flash Memory | 96 KB code flash with 1 KB block size, security lock, and boot swap function |
| Data Flash | 8 KB with background operation (BGO), 1,000,000 rewrite cycles, 1.8–5.5 V programming |
| RAM | 4 KB on-chip RAM, including dedicated areas for flash library use (start address FEF00H) |
| Power Consumption | 66 μA/MHz active current; 0.57 μA in STOP mode with RTC + LVD enabled |
| Analog Peripherals | 10-bit ADC with 24 input channels, internal 1.45 V reference, and integrated temperature sensor |
| Serial Interfaces | Up to 4 UART/LIN channels, 3–10 I²C/Simplified I²C channels, 2–8 CSI (SPI-compatible) channels |
| Timers & RTC | 8–16 × 16-bit timers, 1 × 12-bit interval timer, 1 × calendar RTC (99-year, alarm, correction), 1 × WDT |
Pinout & Package
Package: 44-pin LQFP (10 × 10 mm, 0.8-mm pitch), RoHS-compliant, plastic body with exposed thermal pad (PLQP0044GC-A).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual 1.6–5.5 V single-supply operation; supports mixed-voltage I/O (1.8/2.5/3 V interface capability) |
| P00–P07, P10–P17, P20–P27, P30–P37, P40–P43 | General-purpose I/O ports | 44 total I/O pins; configurable as N-ch open drain (6 V tolerant), TTL input, or with on-chip pull-up resistors |
| P10/P11 | SPI clock/data (SCK00/SI00), UART0 (RxD0/TxD0), LIN, SDA00/SCL00 | Multi-function pin supporting simultaneous serial protocol selection via software configuration |
| P20/P21 | ADC reference inputs (AVREFP/AVREFM) | Enable precise ratiometric measurement; AVREFP also serves as analog input ANI0 |
| P22–P27, P30–P37, P40–P43 | Analog inputs (ANI2–ANI24) | 24-channel 10-bit ADC support; internal temperature sensor accessible via ANI24 |
| RESET | Active-low reset input | Accepts external reset; internally tied to on-chip POR and LVD circuits with 14-level programmable threshold |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT/STOP/SNOOZE modes | Enables battery-powered operation >5 years in sensor nodes with RTC wake-up and LVD monitoring |
| On-chip debug and self-programming | Eliminates external programmer; flash shield window prevents unauthorized firmware access during field updates |
| Background data flash rewriting (BGO) | Allows real-time control loop execution while logging sensor data to nonvolatile memory without interruption |
| Multi-protocol serial interface flexibility | Single pin set supports UART/LIN for automotive diagnostics, I²C for sensor buses, and CSI for display drivers |
| Integrated RTC with calendar and correction | Reduces BOM by removing external RTC IC; supports timestamped event logging with ±1 ppm correction capability |
| 14-level LVD with interrupt/reset option | Provides graded brown-out response: warn at 2.7 V, reset at 2.2 V - critical for reliable EEPROM write completion |
Applications
| Smart Thermostat Controller | Industrial Motor Monitor |
|---|---|
|
Use Scenario: Local temperature/humidity sensing, HVAC actuation control, and wireless reporting in residential HVAC systems. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling, PID computation, relay/valve drive timing, and UART-based communication to Wi-Fi module. Use Value: 96 KB flash accommodates OTA update stack + control firmware; 24-channel ADC reads multiple sensors simultaneously; ultra-low STOP mode extends battery backup life during power outage. |
Use Scenario: Real-time current/vibration/temperature monitoring of 3-phase AC motors in factory automation panels. IC Role / Device Role / Timing Role: Sensor fusion hub aggregating analog (current shunt), digital (vibration sensor I²C), and pulse (encoder) inputs with deterministic 100 μs interrupt latency. Use Value: 41 DMIPS enables fast FFT-based vibration analysis; 8 KB data flash stores fault logs with timestamps; LVD ensures safe shutdown before undervoltage-induced control corruption. |
| Home Appliance UI Panel | Medical Infusion Pump Controller |
|
Use Scenario: Touchless button interface, LED backlight dimming, buzzer feedback, and BLE connectivity in washing machine control panels. IC Role / Device Role / Timing Role: Peripheral manager handling capacitive touch scan, PWM-driven LED brightness control, and UART-to-BLE bridge with LIN-compatible diagnostics. Use Value: On-chip key interrupt reduces polling overhead; buzzer output controller eliminates external driver; 44-pin LQFP fits compact front-panel PCB layout. |
Use Scenario: Safety-critical flow rate calculation, motor control, alarm generation, and tamper detection in portable infusion pumps. IC Role / Device Role / Timing Role: Primary safety controller executing dual-redundant flow algorithms, driving stepper motor via PWM, and validating sensor inputs against LVD thresholds. Use Value: Flash shield window prevents malicious firmware injection; RTC calendar enables audit-trail timestamping; 0.57 μA STOP mode preserves clock during battery swap without losing dose history. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100FAAFP#50 | Identical silicon, embossed tape packaging instead of tray; same electrical specs and pinout | No functional difference; selected for automated SMT line compatibility with tape-and-reel feeders | Choose #50 for high-volume production; #10 preferred for prototyping and small-batch assembly |
| R5F101FAAFP#10 | Omits 8 KB data flash; retains 96 KB code flash, same core, peripherals, and package | Not suitable for applications requiring nonvolatile parameter storage or firmware update rollback; lower cost where BGO logging is unnecessary | Select when data logging is handled externally or via external EEPROM; reduces BoM cost by ~12% |
Compared with R5F100FAAFP#10, the #50 variant offers identical functionality in tape format for volume manufacturing, while R5F101FAAFP#10 removes data flash to cut cost and simplify qualification - making it viable only where background reprogramming and embedded parameter storage are not required.
Availability
R5F100FAAFP#10 is available at Aetrix Electronics and suitable for smart home controllers, industrial motor monitors, appliance UI panels, and medical infusion pump controllers requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for R5F100FAAFP#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, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G13 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and industrial control applications demanding high integration, robustness, and long-term supply assurance.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F100FAAFP#10?
The R5F100FAAFP#10 operates at up to 32 MHz using its high-speed on-chip oscillator and delivers 41 DMIPS performance. This metric reflects actual integer compute throughput under benchmark conditions defined in the RL78 architecture specification, and is validated across the full −40°C to +85°C industrial temperature range specified for this part.
Does the R5F100FAAFP#10 support background data flash rewriting (BGO) while executing application code from main flash?
Yes, the R5F100FAAFP#10 supports background operation (BGO) for its 8 KB data flash memory. During data flash rewriting, the CPU can continue executing instructions from code flash without interruption - a capability confirmed in Section 1.1 Features and verified in the Flash Self-Programming Library documentation (R20UT2944) for RL78 family devices.
How many analog input channels does the R5F100FAAFP#10 provide, and what is the ADC resolution?
The R5F100FAAFP#10 provides 24 analog input channels with 10-bit resolution. These channels map to pins P22–P27, P30–P37, and P40–P43, and include dedicated AVREFP/AVREFM pins (P20/P21) for precision ratiometric measurements. The internal 1.45 V reference and temperature sensor are accessible only in HS (high-speed main) mode.
What is the industrial temperature grade and supply voltage range supported by the R5F100FAAFP#10?
The R5F100FAAFP#10 is rated for industrial operation from −40°C to +85°C and supports a single supply voltage range of 1.6 V to 5.5 V. Its on-chip voltage detector (LVD) offers 14 programmable threshold levels, enabling precise brown-out detection and reset/warning behavior across this full voltage span.
Is the R5F100FAAFP#10 pin-compatible with other RL78/G13 variants in the same 44-pin LQFP package?
Yes, all RL78/G13 devices in the 44-pin LQFP package (e.g., R5F100FAAFP#10, R5F100FGAFP#10, R5F101FAAFP#10) share identical pinouts and mechanical footprint (PLQP0044GC-A). Functional differences - such as flash size, data flash presence, or peripheral enablement - are implemented in silicon and configured via software, not pin assignment.
R5F100FAAFP#10 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:
- 4K x 8
- 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:
R5F100FAAFP#10 FAQ
1.How can I place an order for R5F100FAAFP#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100FAAFP#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 R5F100FAAFP#10 reliable?
The price and inventory of R5F100FAAFP#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100FAAFP#10 is usually 5 days.
3.What payment methods are accepted for R5F100FAAFP#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100FAAFP#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100FAAFP#10?
R5F100FAAFP#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100FAAFP#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 R5F100FAAFP#10?
For technical support, including R5F100FAAFP#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100FAAFP#10 requirements.
6.How does Aetrix verify that R5F100FAAFP#10 is sourced from the original manufacturer or authorized distributors?
All R5F100FAAFP#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 R5F100FAAFP#10 meets industry standards.
7.What is the process for return or replacement of R5F100FAAFP#10?
All R5F100FAAFP#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100FAAFP#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 R5F100FAAFP#10 part is unused and in its original packaging.
Return procedure for R5F100FAAFP#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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