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Renesas R5F101LEAFB#X0
- Part No.:
- R5F101LEAFB#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F101LEAFB#X0.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,992
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Product details
Overview
R5F101LEAFB#X0 from Renesas is a 64-pin LFQFP (0.5 mm pitch), 32 KB flash, 2 KB RAM, 10-bit ADC, 16-channel 16-bit timer RL78/G13 microcontroller operating from 1.6–5.5 V, delivering 41 DMIPS at 32 MHz and consuming just 66 μA/MHz - deployed in battery-powered industrial sensor nodes requiring ultra-low-power real-time control.
For engineers reviewing the R5F101LEAFB#X0 datasheet, R5F101LEAFB#X0 pinout, R5F101LEAFB#X0 application, or R5F101LEAFB#X0 equivalent, key selection criteria include its data-flash-free architecture, STOP/HALT/SNOOZE low-power modes, integrated RTC with calendar/alarm, 10-bit ADC (26-channel max), and LQFP-64 package compatibility with industrial temperature range (−40°C to +85°C).
Technical Context
The R5F101LEAFB#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 12-bit interval timer, real-time clock with 99-year calendar and clock correction, and watchdog timer powered by dedicated low-speed on-chip oscillator.
Its peripheral set includes up to 16 channels of 16-bit timer, 3–10 I²C/Simplified I²C channels, 2–4 UART/LIN channels, 2–8 CSI (SPI-compatible) channels, and DMA controller with 2/4 channels enabling 2-clock transfers between SFR and RAM - all optimized for deterministic real-time response in resource-constrained embedded systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline, 41 DMIPS @ 32 MHz |
| Flash / RAM | 32 KB code flash memory (1 KB block size), 2 KB on-chip RAM |
| Power Consumption | 66 μA/MHz active; 0.57 μA in STOP mode with RTC + LVD active |
| ADC | 10-bit resolution A/D converter, up to 26 analog input channels, internal 1.45 V reference |
| Timers | 16 × 16-bit timers, 1 × 12-bit interval timer, 1 × RTC (calendar, alarm, correction) |
| Operating Range | 1.6 V to 5.5 V supply; −40°C to +85°C ambient (Industrial D-grade) |
| Package | LFQFP-64, 10 mm × 10 mm, 0.5 mm pitch, lead-free, RoHS compliant |
Pinout & Package
Package: LFQFP-64 (PLQP0064KF-A), 10 mm × 10 mm body, 0.5 mm lead pitch, exposed pad not present, moisture sensitivity level (MSL) 3 per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains: VDD supplies core/peripherals; VSS is common reference for analog/digital sections |
| P00–P07 | General-purpose I/O port | Configurable as N-ch open-drain, TTL input, or pull-up; supports different-potential interface (1.8/2.5/3 V) |
| P10–P17 | Multi-function port | Includes SCK00/SCL00, SI00/RxD0/TOOLRxD/SDA00 - enables SPI/I²C/UART bootloading and debug |
| P20–P27 | Analog input port | ANI0–ANI7 inputs with AVREFP/AVREFM references; supports temperature sensor and internal 1.45 V reference |
| RESET | Active-low reset input | Accepts external reset signal; internally tied to on-chip POR and LVD circuits |
| CLKP/CLKM | Crystal oscillator inputs | Supports external 32.768 kHz crystal for RTC or high-frequency crystals up to 20 MHz |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.57 μA STOP mode with RTC + LVD active enables multi-year battery life in sensor endpoints |
| Self-programmable flash | Boot swap and flash shield window functions support secure firmware updates without external programmer |
| Integrated RTC with calendar | Hardware-accelerated 99-year calendar, alarm, and ±1 ppm clock correction reduce host MCU overhead |
| Background data flash rewrite | BGO allows full program execution from code flash while rewriting data flash - no interrupt latency penalty |
| Multi-protocol serial interface | 3 independent I²C channels + 2 UART/LIN channels + 2 CSI channels enable concurrent sensor, bus, and debug comms |
Applications
| Smart Utility Metering | Industrial Motor Control Panel |
|---|---|
|
Use Scenario: Battery-powered water/gas meter with pulse counting, tamper detection, and wireless reporting every 15 minutes. IC Role / Device Role / Timing Role: Main system controller managing sensor acquisition, RTC-triggered wake-up, low-power sleep scheduling, and UART-based sub-GHz radio interface. Use Value: 0.57 μA STOP mode extends 3.6 V lithium battery life beyond 10 years; integrated RTC eliminates external timing IC cost and board space. |
Use Scenario: Local HMI panel for 3-phase motor starter with pushbutton inputs, LED status indicators, and RS-485 Modbus communication. IC Role / Device Role / Timing Role: Real-time I/O coordinator handling debounced button scans, PWM-driven LED brightness control, and Modbus RTU framing via UART. Use Value: 16 × 16-bit timers provide precise 1 ms scan intervals and 100 Hz LED dimming; 26-channel ADC monitors panel voltage/current sensors without external mux. |
| Home Appliance Control Board | Medical Patient Monitor Module |
|
Use Scenario: Washing machine main control board managing motor drive signals, temperature sensing, water level ADC, and user interface buttons. IC Role / Device Role / Timing Role: Central MCU executing state-machine logic, driving GPIO-controlled relays/valves, sampling thermistors via 10-bit ADC, and managing buzzer output. Use Value: On-chip buzzer output controller reduces BOM count; N-ch open-drain I/O safely interfaces with 5 V appliance logic without level shifters. |
Use Scenario: Portable ECG front-end module acquiring analog biopotentials, performing baseline correction, and transmitting digitized waveforms over UART to host. IC Role / Device Role / Timing Role: Signal acquisition engine using internal 1.45 V reference for stable ADC offset, 12-bit interval timer for sample synchronization, and DMA for zero-CPU-load data transfer. Use Value: 10-bit ADC with internal reference achieves <±1 LSB INL across −40°C to +85°C; HALT mode enables rapid wake-on-event for responsive patient alerts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101LEAFB#V0 | Identical silicon; differs only in packaging (tray vs. embossed tape) | No functional difference; #V0 used for prototyping, #X0 for automated SMT line feed | Select #X0 for high-volume production with tape-and-reel pick-and-place |
| R5F100LEAFB#X0 | Same package and pinout, but includes 4 KB data flash memory | Required where field firmware updates or parameter storage exceed code flash endurance limits | Choose R5F100LEAFB#X0 if non-volatile parameter logging or OTA update rollback is needed |
Compared with R5F101LEAFB#X0, the #V0 variant offers identical electrical and thermal performance but requires manual tray loading, while R5F100LEAFB#X0 adds data flash at higher cost and slightly increased standby current - making R5F101LEAFB#X0 optimal for cost-sensitive, write-once firmware deployments.
Availability
R5F101LEAFB#X0 is available at Aetrix Electronics and suitable for industrial motor control panels, smart utility metering, home appliance control boards, medical patient monitor modules, and portable sensor nodes requiring stable component supply across extended product lifecycles.
Supply support for R5F101LEAFB#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 targets cost-sensitive, ultra-low-power general-purpose embedded applications - designed to replace legacy 8-bit MCUs with enhanced performance, integrated peripherals, and robust industrial qualification.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for R5F101LEAFB#X0?
The R5F101LEAFB#X0 operates at up to 32 MHz using its high-speed on-chip oscillator, achieving 41 DMIPS performance. This metric is measured under standard conditions (VDD = 3.3 V, TA = 25°C) and reflects integer computational throughput per the EEMBC CoreMark methodology referenced in Renesas documentation R01DS0131EJ0380.
Does R5F101LEAFB#X0 include data flash memory?
No, R5F101LEAFB#X0 does not include data flash memory. The "101" in the part number explicitly denotes data flash omission per Renesas' RL78/G13 naming convention (Section 1.2, Figure 1-1). Its 32 KB flash is code-only; non-volatile parameter storage must use external EEPROM or emulate in code flash with wear-leveling.
What industrial temperature grade does R5F101LEAFB#X0 support?
R5F101LEAFB#X0 is rated for −40°C to +85°C operation and belongs to the "D" industrial grade per Renesas' ordering code structure (Section 1.2). This is confirmed by its package suffix "FB" and documented ambient temperature specification in the R01DS0131EJ0380 datasheet, page 2.
Which communication interfaces are available on R5F101LEAFB#X0?
R5F101LEAFB#X0 provides three I²C/Simplified I²C channels, two UART/LIN channels, and two CSI (SPI-compatible) channels. All are independently configurable and can operate concurrently - enabling simultaneous sensor I²C reads, Modbus RTU transmission, and debug SPI communication without resource conflict.
Is R5F101LEAFB#X0 pin-compatible with other RL78/G13 devices in LFQFP-64 package?
Yes, R5F101LEAFB#X0 shares identical pinout and electrical characteristics with all RL78/G13 devices in the LFQFP-64 package (e.g., R5F100LEAFB#X0, R5F101LFAFB#X0), as defined in Section 1.3.2 of R01DS0131EJ0380. Pin functions are consistent across variants; differences are limited to memory size and data flash presence.
R5F101LEAFB#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:
- -
- 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:
R5F101LEAFB#X0 FAQ
1.How can I place an order for R5F101LEAFB#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101LEAFB#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 R5F101LEAFB#X0 reliable?
The price and inventory of R5F101LEAFB#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101LEAFB#X0 is usually 5 days.
3.What payment methods are accepted for R5F101LEAFB#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101LEAFB#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101LEAFB#X0?
R5F101LEAFB#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101LEAFB#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 R5F101LEAFB#X0?
For technical support, including R5F101LEAFB#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101LEAFB#X0 requirements.
6.How does Aetrix verify that R5F101LEAFB#X0 is sourced from the original manufacturer or authorized distributors?
All R5F101LEAFB#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 R5F101LEAFB#X0 meets industry standards.
7.What is the process for return or replacement of R5F101LEAFB#X0?
All R5F101LEAFB#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101LEAFB#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 R5F101LEAFB#X0 part is unused and in its original packaging.
Return procedure for R5F101LEAFB#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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