Renesas R5F100FEAFP#X0
- Part No.:
- R5F100FEAFP#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
R5F100FEAFP#X0.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 44LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:4,049
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Product details
Overview
R5F100FEAFP#X0 from Renesas is a 44-pin LQFP-44, 16-bit RL78/G13 microcontroller with 64 KB flash memory, 4 KB data flash, and 4 KB RAM, operating at up to 32 MHz with 41 DMIPS performance and true low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD mode). It integrates 10-bit ADC (12 channels), UART/SPI/I²C interfaces, RTC, watchdog timer, and DMA for embedded control in battery-powered industrial sensors and smart home actuators.
For engineers reviewing the R5F100FEAFP#X0 datasheet, R5F100FEAFP#X0 pinout, R5F100FEAFP#X0 application, or R5F100FEAFP#X0 equivalent, key selection criteria include its 44-pin LQFP package with 12-channel 10-bit ADC, integrated data flash for parameter storage, ultra-low-power STOP/HALT modes, and support for LIN-bus communication via UART.
Technical Context
The R5F100FEAFP#X0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz) to 30.5 μs (32.768 kHz), and features a unified 1 MB address space. Its power management includes on-chip POR, 14-level LVD, and three low-power modes (HALT, STOP, SNOOZE) optimized for intermittent sensing applications.
Peripherals include dual UART channels (one with LIN support), up to 10 I²C/Simplified I²C channels, 2–8 CSI (SPI-compatible) channels, eight 16-bit timers, one 12-bit interval timer, and one calendar RTC with alarm and clock correction-enabling time-stamped sensor logging and scheduled wake-up without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline, 41 DMIPS @ 32 MHz |
| Flash Memory | 64 KB code flash with 1 KB block erase, self-programming and boot swap |
| Data Flash | 4 KB background operation (BGO) capable, 1M rewrite cycles, VDD = 1.8–5.5 V |
| RAM | 4 KB on-chip SRAM, including dedicated flash library RAM area at FEF00H |
| ADC | 10-bit resolution, 12 analog input channels, internal 1.45 V reference and temp sensor |
| Power Modes | HALT (0.95 μA), STOP (0.57 μA w/ RTC+LVD), SNOOZE (low-latency wake-up) |
| Operating Voltage | 1.6 V to 5.5 V single supply, -40°C to +85°C ambient (A-grade) |
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 |
|---|---|---|
| P10/SCK00/SCL00 | SPI Clock / I²C Clock | Shared function pin supporting master/slave SPI or I²C interface timing |
| P11/SI00/RxD0/TOOLRxD/SDA00 | SPI Input / UART RX / I²C Data | Multi-function pin enabling serial comms flexibility; TOOLRxD supports on-chip debug |
| P12/SO00/TxD0/TOOLTxD/SDA00 | SPI Output / UART TX / I²C Data | Enables full-duplex SPI or UART, plus bidirectional I²C data with open-drain control |
| P13/INTP0/TOOLCLK | External Interrupt / Debug Clock | Hardware interrupt trigger and JTAG/SWD clock input for programming and trace |
| P20/ANI0/AVREFP | Analog Input / ADC Reference+ | Primary ADC channel with selectable AVREFP for precision ratiometric measurements |
| P21/ANI1/AVREFM | Analog Input / ADC Reference− | Second ADC channel and negative reference for differential or buffered ADC use |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.57 μA in STOP mode with RTC + LVD active enables multi-year battery life in sensor nodes |
| Integrated data flash | 4 KB BGO-capable memory allows firmware updates and field calibration storage without halting app execution |
| LIN-bus compatible UART | One UART channel supports LIN 2.2 protocol, eliminating need for external transceiver in automotive body electronics |
| On-chip temperature sensor | Calibrated sensor usable for thermal compensation of analog measurements or system health monitoring |
| Real-time clock with calendar | 99-year calendar, alarm, and auto-correction reduce BOM cost vs. external RTC ICs in time-aware applications |
Applications
| Smart Thermostat Sensor Node | Industrial Motor Control Panel |
|---|---|
|
Use Scenario: Battery-powered wall-mounted thermostat collecting ambient temperature/humidity and controlling HVAC via relay or TRIAC. IC Role / Device Role / Timing Role: Main system controller executing PID loop, managing display, handling wireless comms, and scheduling wake-ups via RTC alarm. Use Value: 0.57 μA STOP mode extends AA battery life beyond 5 years; integrated 10-bit ADC and temp sensor eliminate external signal conditioning. |
Use Scenario: Local HMI and safety logic unit in a 3-phase motor starter cabinet with status LEDs, fault detection, and RS-485 Modbus interface. IC Role / Device Role / Timing Role: Real-time peripheral manager coordinating GPIO, UART (Modbus RTU), ADC (current sense), and PWM timing for LED indicators. Use Value: Dual UART with LIN capability enables direct connection to motor drive diagnostics port; 64 KB flash hosts robust safety firmware with rollback support. |
| Wireless Smart Plug Controller | Medical Infusion Pump UI Module |
|
Use Scenario: AC mains-connected smart plug with energy monitoring, Wi-Fi/BLE co-processor interface, and overload protection. IC Role / Device Role / Timing Role: System supervisor handling power measurement ADC sampling, relay control, co-processor UART bridging, and secure OTA update staging. Use Value: Data flash stores calibration coefficients and usage logs; SNOOZE mode enables sub-10 μs wake latency for fast response to overcurrent events. |
Use Scenario: Front-panel controller for an infusion pump with touch buttons, LCD backlight control, audio alerts, and dose tracking. IC Role / Device Role / Timing Role: Dedicated UI processor managing capacitive touch scan, buzzer tone generation, RTC-based dose logging, and I²C display interface. Use Value: On-chip BCD correction simplifies time/date display formatting; 4 KB RAM accommodates GUI frame buffer and audit trail buffers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100FFAFP#X0 | 96 KB flash, 8 KB RAM, same 44-pin LQFP package and peripheral set | Higher firmware complexity, larger GUI or protocol stacks (e.g., BLE host stack) | Select when >64 KB code space required; identical pinout and power profile simplify upgrade path |
| R5F101FEAFP#X0 | No data flash (0 KB), otherwise identical flash/RAM/peripherals/package | Cost-sensitive designs where parameter storage handled externally or not required | Choose for lower BOM cost where EEPROM or external flash suffices for configuration storage |
Compared with R5F100FFAFP#X0, the R5F100FEAFP#X0 trades flash/RAM headroom for cost efficiency in fixed-function devices; versus R5F101FEAFP#X0, it adds 4 KB data flash for field calibration and firmware parameter retention without external components.
Availability
R5F100FEAFP#X0 is available at Aetrix Electronics and suitable for industrial motor control panels, smart thermostat sensor nodes, wireless smart plug controllers, and medical infusion pump UI modules requiring stable component supply across long production lifecycles.
Supply support for R5F100FEAFP#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 family delivers ultra-low-power 16-bit MCUs targeting cost-sensitive, battery-operated, and industrial control applications where reliability, code density, and mixed-signal integration are critical.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F100FEAFP#X0?
The R5F100FEAFP#X0 operates at up to 32 MHz using its high-speed on-chip oscillator and delivers 41 DMIPS performance. This benchmark reflects real-world instruction throughput under typical compiler-optimized code, validated per Renesas' R01DS0131EJ0380 datasheet section 1.1.
Does the R5F100FEAFP#X0 include on-chip debug capability, and what interface does it use?
Yes, the R5F100FEAFP#X0 includes full on-chip debug functionality accessible via the TOOLRxD/TOOLTxD/TOOLCLK pins (P11/P12/P13), supporting standard SWD/JTAG protocols. This eliminates need for external debug probes during development and field firmware updates.
How many analog input channels does the R5F100FEAFP#X0 support, and what is the ADC resolution?
The R5F100FEAFP#X0 features a 10-bit successive-approximation ADC with 12 configurable analog input channels (ANI0–ANI11), plus internal references (1.45 V) and temperature sensor. Channel mapping and sampling rate are programmable via SFR registers per section 1.1 of the datasheet.
What low-power modes are available on the R5F100FEAFP#X0, and what is the lowest current consumption?
The R5F100FEAFP#X0 supports HALT, STOP, and SNOOZE modes. In STOP mode with only RTC and LVD active, it consumes 0.57 μA (typical) at VDD = 3.0 V and TA = 25°C - confirmed in Section 1.1 "Ultra-low power consumption technology" of R01DS0131EJ0380.
Is the R5F100FEAFP#X0 pin-compatible with other RL78/G13 variants in the same 44-pin LQFP package?
Yes, all RL78/G13 44-pin LQFP variants - including R5F100FAAFP#X0 through R5F100FLAFP#X0 - share identical pinouts and footprint. Peripheral assignment and default functions are consistent; differences are limited to memory size and data flash presence, verified in Table 1-1 of R01DS0131EJ0380.
R5F100FEAFP#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 44-LQFP
- 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:
- 31
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 4K 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:
R5F100FEAFP#X0 FAQ
1.How can I place an order for R5F100FEAFP#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100FEAFP#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 R5F100FEAFP#X0 reliable?
The price and inventory of R5F100FEAFP#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100FEAFP#X0 is usually 5 days.
3.What payment methods are accepted for R5F100FEAFP#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100FEAFP#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100FEAFP#X0?
R5F100FEAFP#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100FEAFP#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 R5F100FEAFP#X0?
For technical support, including R5F100FEAFP#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100FEAFP#X0 requirements.
6.How does Aetrix verify that R5F100FEAFP#X0 is sourced from the original manufacturer or authorized distributors?
All R5F100FEAFP#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 R5F100FEAFP#X0 meets industry standards.
7.What is the process for return or replacement of R5F100FEAFP#X0?
All R5F100FEAFP#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100FEAFP#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 R5F100FEAFP#X0 part is unused and in its original packaging.
Return procedure for R5F100FEAFP#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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