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Renesas R5F101FGAFP#50
- Part No.:
- R5F101FGAFP#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 44-LQFP
- Datasheet:
-
R5F101FGAFP#50.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 44LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
R5F101FGAFP#50 from Renesas is a 44-pin LQFP-44, 32 MHz RL78/G13 16-bit microcontroller with 96 KB flash, 8 KB RAM, no data flash, and industrial-grade operation (−40°C to +85°C). It integrates 16-bit timer (12 channels), 10-bit ADC (16 channels), UART/SPI/I²C interfaces, RTC, and ultra-low-power modes (0.57 μA in STOP with RTC+LVD) for battery-powered sensor nodes and motor control.
For engineers reviewing the R5F101FGAFP#50 datasheet, R5F101FGAFP#50 pinout, R5F101FGAFP#50 application, or R5F101FGAFP#50 equivalent, key selection criteria include its 44-pin LQFP package, absence of on-chip data flash, −40°C to +85°C industrial temperature rating, 96 KB code flash size, and support for SNOOZE mode with background data flash programming capability in compatible variants.
Technical Context
The R5F101FGAFP#50 implements the RL78 CPU core with 3-stage pipeline, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock). Its memory map includes 1 MB address space, with dedicated SFR regions for peripheral control and 96 KB of code flash organized in 1 KB blocks.
Peripheral integration includes dual UART channels (one LIN-capable), up to 10 I²C/Simplified I²C channels, 2–8 CSI (SPI-compatible) channels, 12-channel 16-bit timer array, and a calendar-mode real-time clock with alarm and auto-correction-enabling time-stamped event logging without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time response in motor control loops. |
| Max Clock Speed | 32 MHz using high-accuracy on-chip oscillator (±1.0% over VDD = 1.8–5.5 V, TA = −20 to +85°C); eliminates need for external crystal in cost-sensitive designs. |
| Flash Memory | 96 KB code flash (1 KB block size); supports self-programming with boot swap and flash shield window for firmware updates. |
| RAM | 8 KB on-chip RAM; sufficient for RTOS stacks, communication buffers, and sensor fusion algorithms. |
| ADC | 10-bit resolution, 16 analog input channels, internal 1.45 V reference; enables direct measurement of thermistors, potentiometers, and current-sense amplifiers. |
| Power Modes | HALT (66 μA/MHz), STOP (0.57 μA with RTC + LVD active), SNOOZE; extends battery life in wireless sensor endpoints beyond 5 years. |
| Operating Temp | −40°C to +85°C (Industrial grade D); qualified for use in HVAC controllers, industrial PLC I/O modules, and factory automation sensors. |
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 VDD pins (Pins 1, 44) and multiple VSS (Pins 2, 22, 43) ensure stable core voltage under dynamic load; decoupling required per Renesas layout guidelines. |
| P10/SCK00/SCL00 | Port 10 / SPI clock / I²C clock | Multi-function pin supporting master/slave SPI clock or I²C bus clock; selectable via PMR register; shared with debug interface TOOLCLK. |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Port 11 / SPI input / UART0 RX / debug RX / I²C data | Enables concurrent use of UART0 for host communication and I²C for sensor interfacing; TOOLRxD allows in-circuit debugging without dedicated JTAG header. |
| P12/SO00/TxD0/TOOLTxD/SDA01 | Port 12 / SPI output / UART0 TX / debug TX / I²C data | Shared UART0 TX and I²C SDA simplifies 2-wire sensor bus design; TOOLTX supports SWD-style programming via single-pin debug. |
| P13/INTP0/ANI3 | Port 13 / external interrupt / analog input 3 | Hardware interrupt trigger for emergency stop signals; also serves as ADC channel for analog monitoring in safety-critical functions. |
| P20/ANI0/AVREFP | Port 20 / analog input 0 / ADC reference positive | Configurable as primary ADC reference voltage source (AVREFP) or analog input; enables ratiometric sensing with external voltage dividers. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA with RTC and LVD active - enables decade-long battery life in smart metering and environmental monitors. |
| On-chip high-accuracy oscillator | ±1.0% tolerance across full voltage (1.8–5.5 V) and temperature (−20 to +85°C) range - eliminates external crystal and reduces BOM cost. |
| Real-time clock with calendar | 99-year calendar, alarm, and auto-correction - supports time-of-use billing, scheduled wake-up, and timestamped data logging without external RTC IC. |
| Multi-protocol serial interfaces | 2 UART (1 LIN-capable), up to 10 I²C, up to 8 CSI channels - allows simultaneous connection to UART-based modems, I²C sensors, and SPI displays. |
| Hardware multiplier/divider | 16×16→32-bit multiply, 32÷32→32-bit divide, MAC unit - accelerates PID calculations, filter coefficients, and motor commutation math in real time. |
| On-chip debug with SWD | Single-wire debug (SWD) via TOOLRxD/TOOLTxD pins - enables full debug and flash programming using only two pins, reducing PCB footprint. |
Applications
| Smart Thermostat Controller | Industrial Motor Drive Interface |
|---|---|
Use Scenario: Programmable HVAC controller managing temperature setpoints, fan speed, and occupancy detection via PIR sensor. IC Role / Device Role / Timing Role: Main system controller executing PID loop, interpreting I²C sensor data (temperature/humidity), driving 7-segment display via GPIO, and managing UART communication with Wi-Fi module. Use Value: 96 KB flash accommodates embedded web server and OTA update logic; STOP mode extends CR2032 battery life to >3 years in battery-backup configuration. |
Use Scenario: Compact BLDC motor driver board requiring position feedback, current sensing, and CAN/LIN communication to main ECU. IC Role / Device Role / Timing Role: Dedicated motor control co-processor handling Hall-effect decoding, PWM generation (via 16-bit timer), and analog current sampling (10-bit ADC). Use Value: Hardware multiplier accelerates Clarke/Park transforms; SNOOZE mode allows background firmware updates while maintaining real-time motor control. |
| Wireless Sensor Node | Factory Automation I/O Module |
Use Scenario: Battery-powered vibration sensor node transmitting FFT data via LoRaWAN gateway using UART-to-LoRa bridge. IC Role / Device Role / Timing Role: Edge-processing MCU acquiring accelerometer data via SPI, performing FFT via hardware MAC, and formatting packets for UART transmission. Use Value: 8 KB RAM holds 2 kB FFT buffer and packet queue; HALT mode draws only 66 μA/MHz during active acquisition, enabling multi-year field deployment. |
Use Scenario: DIN-rail mounted digital I/O expansion module for PLC systems, supporting 16-channel isolated inputs and 8-channel relay outputs. IC Role / Device Role / Timing Role: Isolation interface controller managing optocoupler drivers, reading status via GPIO, and communicating with host PLC via UART or LIN. Use Value: −40°C to +85°C rating ensures reliability in unconditioned factory environments; multiple UART channels enable simultaneous diagnostics and control traffic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100FGAFP#50 | Includes 4 KB data flash; otherwise identical flash/RAM/peripherals/package. | Required for applications needing non-volatile parameter storage (e.g., calibration data, device ID) without external EEPROM. | Select R5F100FGAFP#50 if data flash is needed; R5F101FGAFP#50 reduces cost where parameters are stored externally or are static. |
| R5F101LCAFA#50 | 64-pin LQFP, 128 KB flash, 12 KB RAM, same peripheral set and power specs. | Suitable for designs requiring more GPIO (up to 52), additional UART/I²C channels, or larger firmware image. | Choose R5F101LCAFA#50 when scaling I/O count or firmware complexity; R5F101FGAFP#50 optimizes cost and board area for 44-pin constrained layouts. |
Compared with R5F100FGAFP#50, the R5F101FGAFP#50 removes data flash to reduce cost and die size while retaining identical code flash, RAM, peripherals, and low-power performance-making it optimal for fixed-parameter firmware. Against R5F101LCAFA#50, it trades pin count and memory headroom for smaller footprint and lower component count in space-constrained industrial controls.
Availability
R5F101FGAFP#50 is available at Aetrix Electronics and suitable for industrial motor drives, smart building controllers, and wireless sensor networks requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for R5F101FGAFP#50 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 targets cost-sensitive, ultra-low-power general-purpose embedded applications-designed to replace legacy 8-bit MCUs with enhanced performance, integrated peripherals, and simplified power management for industrial and consumer equipment.
FAQ
What is the maximum operating frequency of the R5F101FGAFP#50?
The R5F101FGAFP#50 operates at up to 32 MHz using its high-accuracy on-chip oscillator. This frequency is achievable across the full industrial temperature range (−40°C to +85°C) and supply voltage (1.6–5.5 V), with ±1.0% accuracy-eliminating the need for an external crystal in most applications. The R5F101FGAFP#50 supports clock division and subsystem clocks down to 32.768 kHz for ultra-low-power RTC operation.
Does the R5F101FGAFP#50 include on-chip data flash memory?
No, the R5F101FGAFP#50 does not include on-chip data flash memory. Per Renesas part numbering convention, the "1" in the third digit (R5F101FG...) indicates absence of data flash. This variant provides 96 KB of code flash and 8 KB of RAM only. For designs requiring non-volatile parameter storage, the pin-compatible R5F100FGAFP#50 (with 4 KB data flash) or external EEPROM should be considered.
What debug interface does the R5F101FGAFP#50 support?
The R5F101FGAFP#50 supports single-wire debug (SWD) via the TOOLRxD (Pin 11) and TOOLTxD (Pin 12) pins, which share functions with UART0 and I²C. This eliminates the need for a dedicated debug header and allows full programming, breakpoint setting, and memory inspection using standard Renesas E2 studio and E2 emulator tools. No JTAG pins are required.
Can the R5F101FGAFP#50 drive a 16-segment display directly?
Yes, the R5F101FGAFP#50 can drive multiplexed 16-segment displays directly using its GPIO ports and on-chip clock output/buzzer controller. With up to 36 general-purpose I/O pins (including N-ch open-drain capable of 6 V tolerance), it supports common-anode or common-cathode configurations. The built-in 16-bit interval timer and PWM functionality simplify timing-critical display refresh cycles without CPU overhead.
What is the minimum supply voltage for the R5F101FGAFP#50?
The R5F101FGAFP#50 operates down to 1.6 V, enabling compatibility with single-cell Li-ion (2.5–4.2 V), NiMH (1.2 V × 2), or coin-cell (3 V) power sources when paired with appropriate regulators. At 1.6 V, the maximum clock frequency is reduced per datasheet specifications, but ultra-low-power STOP mode (0.57 μA) remains fully functional with RTC and LVD enabled-critical for energy-harvesting and battery-backed applications.
R5F101FGAFP#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 44-LQFP
- Series:
- RL78/G13
- Packaging:
- Tape & Reel (TR)
- 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:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 12K 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:
R5F101FGAFP#50 FAQ
1.How can I place an order for R5F101FGAFP#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101FGAFP#50 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 R5F101FGAFP#50 reliable?
The price and inventory of R5F101FGAFP#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101FGAFP#50 is usually 5 days.
3.What payment methods are accepted for R5F101FGAFP#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101FGAFP#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101FGAFP#50?
R5F101FGAFP#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101FGAFP#50 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 R5F101FGAFP#50?
For technical support, including R5F101FGAFP#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101FGAFP#50 requirements.
6.How does Aetrix verify that R5F101FGAFP#50 is sourced from the original manufacturer or authorized distributors?
All R5F101FGAFP#50 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 R5F101FGAFP#50 meets industry standards.
7.What is the process for return or replacement of R5F101FGAFP#50?
All R5F101FGAFP#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101FGAFP#50, 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 R5F101FGAFP#50 part is unused and in its original packaging.
Return procedure for R5F101FGAFP#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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