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Renesas R5F100LEGFA#X0
- Part No.:
- R5F100LEGFA#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F100LEGFA#X0.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,344
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Product details
Overview
R5F100LEGFA#X0 from Renesas is a 64-pin LQFP-0.65mm, 128 KB flash, 8 KB data flash, 12 KB RAM RL78/G13 16-bit microcontroller with ultra-low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD), 32 MHz max CPU speed, and integrated peripherals including 16-bit timers, 10-bit ADC (26 channels), UART, I²C, CSI, RTC, and DMA - deployed in industrial sensor nodes and battery-powered control systems.
For engineers reviewing the R5F100LEGFA#X0 datasheet, R5F100LEGFA#X0 pinout, R5F100LEGFA#X0 application, or R5F100LEGFA#X0 equivalent, key selection criteria include its -40°C to +105°C industrial temperature grade (G suffix), LQFP-64 0.65-mm pitch package (FA), on-chip data flash with background operation (BGO), and support for SNOOZE mode for low-latency wake-up in energy-constrained embedded designs.
Technical Context
The R5F100LEGFA#X0 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 high-accuracy ±1.0% on-chip oscillator (1–32 MHz selectable) and dedicated low-speed oscillator for watchdog and RTC operation.
Its peripheral set includes up to 16 × 16-bit timers, one 12-bit interval timer, calendar-based RTC with alarm/correction, 10-bit ADC with internal 1.45 V reference and temperature sensor, and three serial interfaces (CSI, UART/LIN, I²C) - all configurable via register-level control without external timing components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time response and compact code size vs. 8-bit MCUs. |
| Max Operating Frequency | 32 MHz - delivers 41 DMIPS performance while maintaining ultra-low active current (66 μA/MHz). |
| Memory Configuration | 128 KB code flash (1 KB block erase), 8 KB data flash with BGO, 12 KB RAM - supports firmware updates and logging without halting execution. |
| ADC Resolution & Channels | 10-bit resolution, 26 analog input channels, internal 1.45 V reference - enables direct sensing of multiple sensors without external references. |
| Operating Temperature | -40°C to +105°C (G-grade) - qualified for industrial motor drives, HVAC controls, and factory automation equipment. |
| Low-Power Modes | HALT (0.72 μA), STOP (0.57 μA w/ RTC+LVD), SNOOZE - allows rapid wake-up from deep sleep using serial interface events or timer alarms. |
| Serial Interfaces | 2× UART (LIN-capable), 3× I²C/Simplified I²C, 2–8× CSI (SPI-compatible) - supports mixed-protocol communication with displays, EEPROMs, and transceivers. |
Pinout & Package
Package: 64-pin LQFP, 12 × 12 mm, 0.65-mm pitch (FA suffix), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD pins (Pins 1, 64) and multiple VSS (Pins 2, 3, 63) reduce noise and improve decoupling for stable 1.6–5.5 V operation. |
| P10–P17, P20–P27, P30–P37, P40–P47, P50–P57, P60–P63 | General-purpose I/O ports | 64 total I/O (including 26 ADC inputs); configurable as N-ch open-drain, TTL input, or pull-up; supports 1.8/2.5/3.0 V logic interfacing. |
| P10/SCK00/SCL00, P11/SI00/RxD0 | Multi-function serial interface pins | Shared CSI0 clock (SCK00), I²C clock (SCL00), and UART0 receive (RxD0) - enables flexible peripheral mapping with minimal pin count. |
| P30/INTP0, P31/INTP1, P32/INTP2 | External interrupt inputs | Dedicated edge-triggered interrupt pins with debouncing support - used for emergency stop, button wake-up, or encoder zero-crossing detection. |
| P50/RTCCLK, P51/XT1 | Real-time clock inputs | Supports 32.768 kHz crystal (XT1) and optional RTC clock input (RTCCLK) - enables precise timekeeping and calendar functions independent of main clock. |
Key Features
| Feature | Design Value |
|---|---|
| Self-programming with boot swap | Enables safe over-the-air (OTA) firmware updates by swapping active/inactive flash banks without runtime interruption. |
| Data flash background operation (BGO) | Allows CPU to execute code from program memory while rewriting data flash - critical for real-time logging and parameter storage. |
| SNOOZE mode with serial wake-up | Permits UART/I²C/CSI to trigger immediate wake-up from STOP mode with sub-μs latency - ideal for responsive sensor gateways. |
| On-chip voltage detector (LVD) | 14-level programmable reset/interrupt threshold (1.6–4.2 V) - protects against brown-out during battery discharge or power supply sag. |
| Hardware multiplier/divider | 16×16→32-bit multiply, 32÷32→32-bit divide, and MAC operations accelerate motor control algorithms and digital filtering. |
| Key interrupt function | Detects simultaneous press/release of up to 8 I/O pins - eliminates external debounce circuitry in keypad-based HMI designs. |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
|
Use Scenario: Closed-loop control of BLDC fans and pumps in HVAC systems with thermal monitoring and fault reporting. IC Role / Device Role / Timing Role: Main system controller executing FOC algorithms, sampling ADC channels at 100 kSPS, and generating PWM via 16-bit timers with dead-time insertion. Use Value: Integrated 10-bit ADC with internal reference and temperature sensor eliminates external signal conditioning; SNOOZE mode reduces average current to <10 μA during idle periods. |
Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and CO₂ across remote industrial sites. IC Role / Device Role / Timing Role: Data aggregator with RTC timestamping, SPI-connected sensor interface, and UART/LIN output to gateway. Use Value: 0.57 μA STOP mode with RTC+LVD extends 2×AA battery life beyond 5 years; data flash BGO enables seamless local data buffering during wireless transmission gaps. |
| Programmable Logic Controller (PLC) I/O Module | Energy Metering Front-End |
|
Use Scenario: DIN-rail mounted I/O expansion module handling 16 digital inputs and 8 relay outputs in factory automation. IC Role / Device Role / Timing Role: Peripheral manager coordinating GPIO, UART comms to PLC master, and watchdog supervision of safety-critical outputs. Use Value: -40°C to +105°C rating ensures reliability in uncooled enclosures; on-chip LVD prevents erratic behavior during 24 VDC supply fluctuations. |
Use Scenario: Residential smart meter front-end performing voltage/current sampling, RMS calculation, and tamper detection. IC Role / Device Role / Timing Role: Precision measurement engine using 10-bit ADC with internal 1.45 V reference and hardware multiplier for real-time power computation. Use Value: Hardware MAC unit accelerates 3-phase power calculations; 128 KB flash accommodates dual firmware images for secure field upgrades. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100LEGFB#X0 | Same core, memory, and peripherals; differs only in package - LFQFP-64 (0.5-mm pitch, FB suffix) instead of LQFP-64 (0.65-mm pitch, FA suffix). | Requires PCB redesign due to finer pitch and different land pattern; suited for space-constrained layouts where 0.5-mm pitch is preferred. | Select R5F100LEGFB#X0 only when board layout prioritizes footprint density over assembly yield and rework simplicity. |
| R5F101LEGFA#X0 | Omits 8 KB data flash and BGO functionality; retains identical code flash (128 KB), RAM (12 KB), peripherals, and package. | Not suitable for applications requiring nonvolatile parameter storage or background logging; appropriate for cost-sensitive fixed-function controllers. | Choose R5F101LEGFA#X0 when data flash is unnecessary and BOM cost reduction is critical - e.g., simple appliance timers or LED drivers. |
Compared with R5F100LEGFB#X0, the R5F100LEGFA#X0 offers easier manufacturability via 0.65-mm pitch; compared with R5F101LEGFA#X0, it adds essential data retention capability for field-upgradable firmware and runtime configuration persistence.
Availability
R5F100LEGFA#X0 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, and programmable logic controller (PLC) I/O modules requiring stable component supply, long-term lifecycle assurance, and automotive-grade traceability.
Supply support for R5F100LEGFA#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 industrial, automotive, and IoT markets.
The RL78/G13 family targets cost-sensitive, ultra-low-power general-purpose embedded applications - delivering high integration, robust industrial qualification, and toolchain compatibility with Renesas CS+ and e2 studio.
FAQ
What is the maximum operating frequency and corresponding power consumption of the R5F100LEGFA#X0?
The R5F100LEGFA#X0 operates at up to 32 MHz with 41 DMIPS performance and consumes 66 μA per MHz in active mode. At full speed, typical active current is ~2.1 mA (VDD = 3.3 V, TA = 25°C), dropping to 0.57 μA in STOP mode with RTC and LVD enabled - verified in Section 1.1 of R01DS0131EJ0380.
Does the R5F100LEGFA#X0 support in-system programming and secure firmware updates?
Yes, the R5F100LEGFA#X0 supports in-system programming via on-chip debug interface and includes boot swap functionality in its self-programming flash library. This enables secure dual-bank firmware updates without external programmers - confirmed in Section 1.1 "Code flash memory" and Flash Self-Programming Library documentation (R20UT2944).
What serial communication interfaces are available on the R5F100LEGFA#X0, and how many instances does it support?
The R5F100LEGFA#X0 integrates 2 UART/LIN channels, 3 I²C/Simplified I²C channels, and 2–8 CSI (SPI-compatible) channels - exact count depends on pin multiplexing. All interfaces support independent clock sources and DMA-triggered transfers, enabling concurrent multi-protocol communication as documented in Section 1.1 "Serial interface".
Is the R5F100LEGFA#X0 qualified for industrial temperature range, and what does the 'G' suffix indicate?
Yes, the 'G' in R5F100LEGFA#X0 denotes industrial temperature grade: -40°C to +105°C ambient operation. This qualification covers extended thermal cycling, voltage tolerance, and long-term reliability testing per JEDEC JESD22 standards - specified in Section 1.1 "Operating ambient temperature" and Figure 1-1 of the datasheet.
How does the data flash memory in the R5F100LEGFA#X0 differ from standard code flash, and what is its endurance?
The R5F100LEGFA#X0 includes 8 KB dedicated data flash memory rated for 1,000,000 write/erase cycles (typical), supporting background operation (BGO) so CPU execution continues during rewrites. Unlike code flash, data flash uses separate erase blocks and voltage regulation - detailed in Section 1.1 "Data Flash Memory" and R20UT2944 flash library specification.
R5F100LEGFA#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-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:
- 48
- 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):
- 2.4V ~ 5.5V
- Data Converters:
- A/D 12x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F100LEGFA#X0 FAQ
1.How can I place an order for R5F100LEGFA#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100LEGFA#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 R5F100LEGFA#X0 reliable?
The price and inventory of R5F100LEGFA#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100LEGFA#X0 is usually 5 days.
3.What payment methods are accepted for R5F100LEGFA#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100LEGFA#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100LEGFA#X0?
R5F100LEGFA#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100LEGFA#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 R5F100LEGFA#X0?
For technical support, including R5F100LEGFA#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100LEGFA#X0 requirements.
6.How does Aetrix verify that R5F100LEGFA#X0 is sourced from the original manufacturer or authorized distributors?
All R5F100LEGFA#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 R5F100LEGFA#X0 meets industry standards.
7.What is the process for return or replacement of R5F100LEGFA#X0?
All R5F100LEGFA#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100LEGFA#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 R5F100LEGFA#X0 part is unused and in its original packaging.
Return procedure for R5F100LEGFA#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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