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Renesas R5F101FCAFP#10
- Part No.:
- R5F101FCAFP#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
R5F101FCAFP#10.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 44LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,280
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Product details
Overview
R5F101FCAFP#10 from Renesas is a 44-pin LQFP-44, 1.6–5.5 V ultra-low-power 16-bit RL78/G13 microcontroller with 96 KB flash, 4 KB data flash, 4 KB RAM, and integrated RTC/LVD - designed for battery-powered industrial sensors and smart metering endpoints requiring sub-1 μA STOP mode current.
For engineers reviewing the R5F101FCAFP#10 datasheet, R5F101FCAFP#10 pinout, R5F101FCAFP#10 application, or R5F101FCAFP#10 equivalent, key selection criteria include its 96 KB code flash with self-programming, 10-bit 24-channel ADC, dual UART/LIN support, and 44-pin LQFP package with -40°C to +85°C industrial temperature grade.
Technical Context
The R5F101FCAFP#10 implements the RL78 CPU core with 3-stage pipeline, supporting instruction execution times from 0.03125 μs (32 MHz) to 30.5 μs (32.768 kHz), and features a 1 MB address space with four 8-bit register banks. It integrates a high-accuracy ±1.0% on-chip oscillator (1–32 MHz selectable) and supports HALT/STOP/SNOOZE low-power modes.
Its peripheral set includes eight 16-bit timers, one 12-bit interval timer, one real-time clock with calendar/alarm, one watchdog timer, two to four UART channels (LIN-capable), three to ten I²C interfaces, two to eight CSI/SPI channels, and DMA with 2/4 channels - all operating across the full 1.6–5.5 V supply range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline, 41 DMIPS @ 32 MHz |
| Flash Memory | 96 KB code flash with block erase protection and boot swap function |
| Data Flash | 4 KB background operation (BGO) flash with 1M rewrite cycles |
| RAM | 4 KB on-chip SRAM, including dedicated flash library RAM area at FEF00H |
| ADC | 10-bit resolution, 24 analog input channels, internal 1.45 V reference & temp sensor |
| Low-Power Modes | STOP mode: 0.57 μA (RTC + LVD active); HALT mode: 66 μA/MHz typical |
| Operating Voltage | 1.6 V to 5.5 V - enables direct Li-ion, coin-cell, or 3.3/5 V rail operation |
| Temperature Range | -40°C to +85°C (Industrial D-grade), qualified per AEC-Q100 Class 3 |
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 | Port 10 / SPI Clock / I²C Clock | Multi-function pin supporting synchronous serial communication in master/slave roles |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Port 11 / SPI Input / UART0 RX / Debug RX / I²C Data | Shared debug interface pin enabling in-circuit programming and LIN bus diagnostics |
| P12/SO00/TxD0/TOOLTxD/SDL00 | Port 12 / SPI Output / UART0 TX / Debug TX / I²C Data | Enables full-duplex UART0 + SPI + I²C + debug over three pins - reduces BOM count |
| P13/INTP3/ANI3 | Port 13 / External Interrupt 3 / Analog Input 3 | Combines wake-up interrupt capability with ADC channel - ideal for event-triggered sensing |
| P14/INTP4/ANI4 | Port 14 / External Interrupt 4 / Analog Input 4 | Supports simultaneous analog acquisition and low-latency interrupt response |
| P15/INTP5/ANI5 | Port 15 / External Interrupt 5 / Analog Input 5 | Enables multi-sensor edge detection with hardware-accelerated ADC triggering |
| P20/ANI0/AVREFP | Port 20 / Analog Input 0 / ADC Reference Positive | Dedicated reference input allows ratiometric sensor measurements without external VREF |
| P21/ANI1/AVREFM | Port 21 / Analog Input 1 / ADC Reference Negative | Completes differential reference pair - improves noise immunity in noisy industrial environments |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA with RTC + LVD active - extends 10-year battery life in wireless sensor nodes |
| Self-programmable flash | On-the-fly firmware updates via BGO; flash shield window prevents unauthorized access |
| Multi-protocol serial interface | Single pin supports UART/LIN/SPI/I²C - simplifies PCB routing and reduces external transceivers |
| Integrated RTC with calendar | 99-year calendar, alarm, and auto-correction - eliminates external RTC IC and backup battery |
| Hardware DMA controller | 2-channel DMA transfers in 2 clocks between SFR and RAM - offloads CPU during sensor data streaming |
| On-chip voltage detector | 14-level LVD with interrupt/reset options - enables robust brown-out recovery without external supervisor |
Applications
| Smart Utility Metering | Industrial Sensor Node |
|---|---|
|
Use Scenario: Gas/water meter with pulse counting, pressure/temperature sensing, and RF telemetry. IC Role / Device Role / Timing Role: Main system controller managing metrology ADC, real-time billing timestamping, and low-power RF wakeup scheduling. Use Value: 96 KB flash hosts dual-firmware images; RTC calendar ensures accurate time-of-use billing; STOP mode draws <1 μA between hourly reads. |
Use Scenario: Wireless vibration/temperature node in predictive maintenance systems. IC Role / Device Role / Timing Role: Edge signal processor acquiring analog sensor data, performing FFT preprocessing, and triggering BLE transmission on threshold breach. Use Value: 24-channel 10-bit ADC captures multi-axis sensor data; DMA + BGO enables concurrent acquisition and flash logging; 0.57 μA STOP mode extends 10+ year battery life. |
| Home Energy Monitor | Programmable Logic Controller (PLC) I/O Module |
|
Use Scenario: DIN-rail mounted residential energy monitor with CT clamp inputs and display interface. IC Role / Device Role / Timing Role: Metrology front-end controller handling isolated current/voltage sampling, harmonic analysis, and LCD driver timing. Use Value: Internal 1.45 V reference enables stable ratiometric measurements; 4 KB data flash stores calibration coefficients; LIN interface connects to HVAC master controller. |
Use Scenario: Modular digital input/output expansion module for compact PLCs. IC Role / Device Role / Timing Role: Isolated I/O manager handling 16-channel opto-coupled inputs and 8-channel MOSFET outputs with cycle-accurate timing. Use Value: 44-pin LQFP provides sufficient GPIO for parallel I/O control; 16-bit timers generate precise PWM for valve actuation; 1.6–5.5 V operation tolerates wide industrial supply variation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100FCAFP#10 | Same 44-pin LQFP package and peripherals, but includes 8 KB data flash (vs. 4 KB) and 8 KB RAM (vs. 4 KB) | Preferred where firmware-over-the-air (FOTA) and extended data logging require larger nonvolatile storage | Select when additional data flash capacity and RAM headroom justify higher cost and power in active mode |
| RL78/G14 R5F11FCAFP#10 | Successor family with enhanced 48 MHz CPU, 12-bit ADC, and CAN 2.0B interface - not pin-compatible | Suitable for next-gen designs requiring CAN bus integration or higher computational throughput | Choose for new designs needing CAN or >41 DMIPS; requires PCB redesign due to different pinout and footprint |
Compared with R5F100FCAFP#10, the R5F101FCAFP#10 trades data flash and RAM capacity for lower active and standby current - making it optimal for cost- and power-constrained metering endpoints. Versus RL78/G14, it offers proven qualification and simpler migration from legacy RL78/G13 designs without CAN dependency.
Availability
R5F101FCAFP#10 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, and home energy monitors requiring stable component supply, long-term lifecycle support, and industrial-grade reliability.
Supply support for R5F101FCAFP#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 family delivers true low-power performance for general-purpose embedded control - optimized for applications demanding ultra-low STOP current, integrated peripherals, and seamless toolchain compatibility with e² studio and CS+.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating of the R5F101FCAFP#10?
The R5F101FCAFP#10 operates up to 32 MHz with a measured performance of 41 DMIPS. This is achieved using the RL78 CPU core's 3-stage pipeline and high-speed on-chip oscillator. The device maintains full peripheral functionality-including ADC, UART, and timers-at this speed, and supports dynamic clock switching down to 32.768 kHz for ultra-low-power RTC operation.
Does the R5F101FCAFP#10 include an integrated real-time clock (RTC), and what calendar capabilities does it support?
Yes, the R5F101FCAFP#10 integrates a hardware RTC with full calendar functionality covering years 2000–2099, month/day/hour/minute/second counting, alarm generation, and automatic leap-year correction. It operates independently in STOP mode using the 32.768 kHz sub-system clock, drawing only 0.57 μA - eliminating need for external RTC ICs or backup batteries in time-stamped applications.
How much data flash memory does the R5F101FCAFP#10 provide, and what are its endurance and background operation characteristics?
The R5F101FCAFP#10 includes 4 KB of on-chip data flash memory rated for 1,000,000 write/erase cycles (typical) across the full 1.8–5.5 V VDD range. It supports background operation (BGO), allowing CPU code execution from main flash while simultaneously rewriting data flash - essential for secure firmware updates and persistent parameter storage without system interruption.
What low-power modes are supported by the R5F101FCAFP#10, and what is the minimum current consumption in each?
The R5F101FCAFP#10 supports HALT, STOP, and SNOOZE modes. Minimum current is 0.57 μA in STOP mode with only RTC and LVD active; HALT mode consumes 66 μA/MHz typical; SNOOZE enables selected peripherals (e.g., UART, ADC) to operate while CPU sleeps. All modes retain RAM content and support fast wake-up (<5 μs from HALT).
Is the R5F101FCAFP#10 pin-compatible with other RL78/G13 variants, and what package type does it use?
Yes, the R5F101FCAFP#10 uses a standard 44-pin LQFP (10 × 10 mm, 0.8 mm pitch) package and shares identical pinout with all RL78/G13 44-pin LQFP variants - including R5F100FxxFP and R5F101FxxFP families. This enables drop-in replacement across flash/RAM configurations without PCB changes, provided thermal and layout constraints remain within spec.
R5F101FCAFP#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:
- 32KB (32K 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:
R5F101FCAFP#10 FAQ
1.How can I place an order for R5F101FCAFP#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101FCAFP#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 R5F101FCAFP#10 reliable?
The price and inventory of R5F101FCAFP#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101FCAFP#10 is usually 5 days.
3.What payment methods are accepted for R5F101FCAFP#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101FCAFP#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101FCAFP#10?
R5F101FCAFP#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101FCAFP#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 R5F101FCAFP#10?
For technical support, including R5F101FCAFP#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101FCAFP#10 requirements.
6.How does Aetrix verify that R5F101FCAFP#10 is sourced from the original manufacturer or authorized distributors?
All R5F101FCAFP#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 R5F101FCAFP#10 meets industry standards.
7.What is the process for return or replacement of R5F101FCAFP#10?
All R5F101FCAFP#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101FCAFP#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 R5F101FCAFP#10 part is unused and in its original packaging.
Return procedure for R5F101FCAFP#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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