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Renesas R5F100LEAFA#50
- Part No.:
- R5F100LEAFA#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F100LEAFA#50.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:750
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Product details
Overview
R5F100LEAFA#50 from Renesas is a 64-pin LQFP-0.65mm MCU in the RL78/G13 family, featuring 128 KB flash, 8 KB data flash, 12 KB RAM, 32 MHz max CPU speed (41 DMIPS), and ultra-low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD mode). It integrates 16-bit timers, 10-bit ADC (26 channels), UART/SPI/I²C interfaces, RTC with calendar, and operates from 1.6–5.5 V across –40°C to +85°C for industrial control and sensor node applications.
For engineers reviewing the R5F100LEAFA#50 datasheet, R5F100LEAFA#50 pinout, R5F100LEAFA#50 application, or R5F100LEAFA#50 equivalent, key selection criteria include its 64-pin LQFP-0.65mm package, 128 KB code flash with self-programming and flash shield window, integrated RTC with alarm/calendar, and support for SNOOZE mode DMA-triggered peripheral wake-up in battery-powered systems.
Technical Context
The R5F100LEAFA#50 implements the RL78 CPU core-a CISC architecture with 3-stage pipeline and configurable instruction timing (0.03125 μs @ 32 MHz to 30.5 μs @ 32.768 kHz). It supports multiple low-power modes (HALT, STOP, SNOOZE) with independent clock domain control for peripherals like RTC and LVD.
Its memory subsystem includes 128 KB on-chip flash (1 KB block size, erase/write security lock), 8 KB data flash with background operation (BGO) and 1M-cycle endurance, and 12 KB SRAM-enabling robust firmware updates and real-time data logging without CPU suspension.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 CISC CPU with 3-stage pipeline, 1 MB address space, 8×4 register banks |
| Max Operating Frequency | 32 MHz (41 DMIPS), supported by high-accuracy ±1.0% on-chip oscillator (1–32 MHz selectable) |
| Memory Configuration | 128 KB code flash (1 KB blocks), 8 KB data flash (BGO enabled), 12 KB RAM |
| Power Consumption | 66 μA/MHz active; 0.57 μA in STOP mode with RTC + LVD active |
| Analog Peripherals | 10-bit ADC with 26 input channels, internal 1.45 V reference, and integrated temperature sensor |
| Timers & RTC | 16× 16-bit timers, 1× 12-bit interval timer, 1× calendar RTC (99-year range, alarm, correction) |
| Serial Interfaces | Up to 8 CSI (SPI-compatible), 4 UART/LIN, 10 I²C/Simplified I²C channels |
Pinout & Package
Package: 64-pin LQFP, 12 × 12 mm, 0.65 mm pitch (JEDEC MS-026), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core/peripheral rail decoupling; supports 1.6–5.5 V operation |
| P10–P17, P20–P27, P30–P37, P40–P47, P50–P57, P60–P67 | General-purpose I/O ports | 64 total I/O pins; configurable as N-ch open drain (6 V tolerant), TTL input, or pull-up; supports 1.8/2.5/3 V interface |
| P10/SCK00/SCL00 | Serial clock input/output | Shared SPI clock (SCK00) and I²C clock (SCL00); enables dual-protocol peripheral sharing |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Multi-function serial data pin | Supports SPI input (SI00), UART receive (RxD0), debug tool interface (TOOLRxD), and I²C data (SDA00) |
| P20/ANI0/AVREFP | Analog input / ADC reference positive | Primary ADC channel 0 input and selectable AVREFP source; enables ratiometric sensing |
| RESET | Active-low reset input | Accepts external reset; internally tied to on-chip POR and LVD circuits for reliable power-on initialization |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE mode with DMA trigger | Permits low-power background ADC sampling or UART RX while CPU remains halted-reducing average system current |
| Flash shield window & block protection | Enables secure firmware update partitioning: bootloader region locked against accidental overwrite during field upgrades |
| RTC with calendar and correction | Hardware calendar (year/month/day/hour/min/sec) with ±1 ppm accuracy over temperature via programmable trim |
| On-chip voltage detector (LVD) | 14-level detection (1.6–4.2 V) with interrupt or reset output-supports graceful shutdown before brownout |
| Background operation (BGO) | Allows full CPU execution from flash while rewriting data flash-enabling concurrent logging and control tasks |
Applications
| Industrial Sensor Node | Smart HVAC Controller |
|---|---|
Use Scenario: Battery-powered environmental monitor collecting temperature, humidity, and CO₂ at 10-minute intervals. IC Role / Device Role: Main system controller managing sensor polling, data aggregation, low-power RTC wake-up, and LoRaWAN transmission. Use Value: 0.57 μA STOP mode with RTC extends 2-AA battery life beyond 5 years; BGO enables seamless data flash logging during RF transmit. |
Use Scenario: Wall-mounted HVAC zone controller with display, keypad, and modulating valve drive. IC Role / Device Role: Real-time coordinator of thermistor readings, PWM fan control, relay sequencing, and user interface responsiveness. Use Value: 26-channel 10-bit ADC supports simultaneous multi-sensor inputs; 16-bit timers deliver precise 20 kHz fan PWM with dead-time insertion. |
| Energy Meter Front-End | Programmable Logic Controller (PLC) I/O Module |
Use Scenario: Sub-metering module measuring voltage/current harmonics and energy accumulation per tariff period. IC Role / Device Role: High-precision analog acquisition engine interfacing with isolation amplifiers and computing RMS, THD, and kWh. Use Value: Internal 1.45 V reference and temperature sensor enable on-the-fly gain/offset calibration; 128 KB flash hosts dual firmware images for fail-safe updates. |
Use Scenario: DIN-rail mounted digital I/O expansion module with 16 isolated inputs and 8 relay outputs. IC Role / Device Role: Deterministic state machine executing scan cycles, diagnostics, and Modbus RTU communication over RS-485. Use Value: 41 DMIPS at 32 MHz ensures <100 μs I/O scan time; UART with LIN support simplifies integration into automotive-grade control networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101LEAFA#50 | No data flash (0 KB); identical core, peripherals, and package | Not suitable for applications requiring nonvolatile parameter storage or firmware field updates | Select when boot code and runtime variables reside entirely in external EEPROM or when cost reduction outweighs data retention needs |
| R5F100LGAFA#50 | Same 64-pin LQFP-0.65mm package but 96 KB flash, 8 KB data flash, 8 KB RAM | Lower memory margin for complex protocol stacks or GUI buffers; same peripheral set and power profile | Choose for cost-sensitive designs where 96 KB flash suffices and 12 KB RAM headroom is not required |
Compared with R5F100LEAFA#50, R5F101LEAFA#50 removes data flash capability-reducing BOM cost but eliminating in-field parameter logging-while R5F100LGAFA#50 trades 32 KB flash and 4 KB RAM for lower unit price, retaining identical low-power behavior and peripheral compatibility.
Availability
R5F100LEAFA#50 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart HVAC controllers, and energy meter front-ends requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for R5F100LEAFA#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 industrial, automotive, and infrastructure markets.
The RL78/G13 product line delivers true low-power performance for general-purpose embedded applications-designed to replace legacy 8/16-bit MCUs with enhanced integration, security, and energy efficiency without sacrificing development simplicity.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F100LEAFA#50?
The R5F100LEAFA#50 achieves a maximum operating frequency of 32 MHz, delivering 41 DMIPS of processing performance. This is measured using the EEMBC CoreMark benchmark under standard conditions (VDD = 3.3 V, TA = 25°C) and reflects the efficiency of the RL78 CISC core with its 3-stage pipeline and optimized instruction set. The R5F100LEAFA#50 sustains this performance across its full 1.6–5.5 V supply range.
Does the R5F100LEAFA#50 support self-programming of its code flash memory?
Yes, the R5F100LEAFA#50 supports full self-programming of its 128 KB code flash memory, including erase and write operations executed from RAM or protected flash regions. It implements flash shield window functionality to prevent accidental modification of critical bootloader sections, and supports boot swap for atomic firmware updates-key capabilities confirmed in the R01DS0131EJ0380 datasheet for the R5F100LEAFA#50.
How many analog input channels does the R5F100LEAFA#50 ADC support, and what is its resolution?
The R5F100LEAFA#50 integrates a 10-bit successive-approximation ADC with up to 26 analog input channels (ANI0–ANI25), configurable via the ANSEL register. It includes an internal 1.45 V reference voltage and a calibrated temperature sensor-both accessible through dedicated ADC channels. These specifications are fixed for the R5F100LEAFA#50 and documented in Section 1.1 of the RL78/G13 datasheet.
What low-power modes are available on the R5F100LEAFA#50, and what is its lowest current consumption?
The R5F100LEAFA#50 offers HALT, STOP, and SNOOZE low-power modes. Its lowest operational current is 0.57 μA in STOP mode with only the real-time clock (RTC) and low-voltage detector (LVD) active-verified across the full –40°C to +85°C temperature range. This value is specified in the electrical characteristics table of the R5F100LEAFA#50 datasheet and applies to the exact part number under standard test conditions.
Is the R5F100LEAFA#50 pin-compatible with other RL78/G13 variants in the same 64-pin LQFP package?
Yes, all RL78/G13 devices in the 64-pin LQFP-0.65mm package-including R5F100LEAFA#50, R5F100LGAFA#50, and R5F101LEAFA#50-share identical pinouts and mechanical footprint. Signal assignments (e.g., P10/SCK00/SCL00, P11/SI00/RxD0/SDA00) are consistent across the family, enabling hardware reuse across memory and feature variants without PCB redesign.
R5F100LEAFA#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-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:
- 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):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 12x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F100LEAFA#50 FAQ
1.How can I place an order for R5F100LEAFA#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100LEAFA#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 R5F100LEAFA#50 reliable?
The price and inventory of R5F100LEAFA#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100LEAFA#50 is usually 5 days.
3.What payment methods are accepted for R5F100LEAFA#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100LEAFA#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100LEAFA#50?
R5F100LEAFA#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100LEAFA#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 R5F100LEAFA#50?
For technical support, including R5F100LEAFA#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100LEAFA#50 requirements.
6.How does Aetrix verify that R5F100LEAFA#50 is sourced from the original manufacturer or authorized distributors?
All R5F100LEAFA#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 R5F100LEAFA#50 meets industry standards.
7.What is the process for return or replacement of R5F100LEAFA#50?
All R5F100LEAFA#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100LEAFA#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 R5F100LEAFA#50 part is unused and in its original packaging.
Return procedure for R5F100LEAFA#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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