Renesas R5F100SLDFB#X0
- Part No.:
- R5F100SLDFB#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 128-LQFP
- Datasheet:
-
R5F100SLDFB#X0.pdf
- Description:
- IC MCU 16BIT 512KB FLSH 128LFQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F100SLDFB#X0 from Renesas is a 128-pin, LFQFP (14 × 20 mm, 0.5-mm pitch), industrial-grade RL78/G13 16-bit MCU with 512 KB flash, 32 KB RAM, and 8 KB data flash - delivering 41 DMIPS at 32 MHz while consuming only 66 μA/MHz active current and 0.57 μA in RTC+LVD-only STOP mode. It integrates 16-bit timers (16 channels), 10-bit ADC (26 channels), UART/LIN, I²C, CSI, RTC with calendar, and hardware multiplier/divider for embedded control in battery-powered and thermally constrained systems.
For engineers reviewing the R5F100SLDFB#X0 datasheet, R5F100SLDFB#X0 pinout, R5F100SLDFB#X0 application, or R5F100SLDFB#X0 equivalent, this page provides verified technical context, package mapping, real-world use cases, and validated alternative options - all aligned to Renesas' official RL78/G13 documentation (R01DS0131EJ0380 Rev.3.80).
Technical Context
The R5F100SLDFB#X0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz ultra-low-speed mode). Its memory subsystem includes 512 KB on-chip code flash (1 KB block size), 8 KB data flash with background operation (BGO) and 1M rewrite cycles, and 32 KB RAM - all operating across 1.6–5.5 V supply and −40°C to +105°C ambient (Industrial G-grade).
Peripheral integration includes dual DMA controllers (4 channels), 16-bit timer array (16 channels), 12-bit interval timer, real-time clock with calendar/alarm/correction, watchdog timer, 10-bit ADC with internal reference (1.45 V) and temperature sensor, and multiple serial interfaces: up to 10-channel I²C/Simplified I²C, 4-channel UART/LIN, and 8-channel CSI - all configurable via dedicated SFRs without software overhead.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic timing and low-power interrupt latency. |
| Max Operating Frequency | 32 MHz - delivers 41 DMIPS performance while maintaining 66 μA/MHz active power efficiency. |
| Memory Configuration | 512 KB code flash + 8 KB data flash + 32 KB RAM - supports secure boot, BGO, and flash shield window protection. |
| Power Modes | HALT (0.94 μA), STOP (0.57 μA w/ RTC+LVD), SNOOZE - enables multi-year battery life in metering and sensor nodes. |
| Analog Peripherals | 10-bit ADC (26 channels, 1.45 V internal reference, integrated temperature sensor) - eliminates external references in thermal monitoring. |
| Serial Interfaces | Up to 10 I²C/S-I²C, 4 UART/LIN, 8 CSI channels - supports mixed-protocol communication in industrial HMI and motor control. |
| Operating Temperature | −40°C to +105°C (G-grade) - qualified for under-hood automotive, factory automation, and outdoor infrastructure. |
Pinout & Package
Package: 128-pin LFQFP (14 × 20 mm, 0.5-mm pitch), RoHS-compliant, industrial-grade (G) marking. Pin count and layout conform to PLQP0128KD-A mechanical specification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs per quadrant ensure stable 1.6–5.5 V operation and noise immunity in noisy industrial environments. |
| P10–P17, P20–P27, etc. | Multi-function GPIO | 120 total I/O pins (N-ch open drain, TTL input, pull-up configurable); supports 1.8/2.5/3.0 V level shifting for mixed-voltage system interfacing. |
| XT1, XT2 | Crystal oscillator inputs | Supports 32.768 kHz crystal for RTC accuracy ±20 ppm; enables calendar function with auto-correction. |
| RESET | Active-low reset input | Accepts external reset signal; internally tied to on-chip POR and LVD (14 selectable voltage thresholds). |
| AVREFP/AVREFM | Analog reference inputs | Accept external reference or use internal 1.45 V source - critical for precision ADC measurements in sensor front-ends. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power STOP mode | 0.57 μA with RTC + LVD active - enables decade-scale battery life in wireless sensor transmitters. |
| Data flash BGO | Execute code from flash while rewriting data flash - ensures uninterrupted real-time logging during firmware updates. |
| Hardware multiplier/divider | 16×16→32-bit multiply, 32÷32→32-bit divide, MAC - accelerates PID control and digital filtering without CPU load. |
| On-chip RTC with calendar | 99-year calendar, alarm, and auto-correction - eliminates external RTC IC and reduces BOM cost in time-stamped data loggers. |
| LIN bus support | UART peripheral with LIN 2.2 compliance - enables direct connection to automotive body electronics without transceiver translation. |
| Flash security functions | Block erase prohibition and flash shield window - prevents unauthorized firmware extraction in medical and industrial devices. |
Applications
| Smart Energy Metering | Industrial Motor Control |
|---|---|
|
Use Scenario: Three-phase electricity meter with tariff switching, tamper detection, and wireless data upload. IC Role / Device Role / Timing Role: Main controller managing metrology ADC sampling, RTC-based billing intervals, LIN/UART comms to PLC, and secure flash storage of consumption logs. Use Value: 512 KB flash stores full firmware + encrypted logs; 0.57 μA STOP mode extends battery backup to >10 years during power outage. |
Use Scenario: Brushless DC motor drive with Hall-sensor feedback, thermal monitoring, and CAN/LIN diagnostics. IC Role / Device Role / Timing Role: Real-time motion controller executing PID loops via hardware MAC, reading 10-bit ADC for current/voltage/temperature, and driving gate drivers via PWM timers. Use Value: 16-channel 16-bit timers enable precise 6-step commutation; integrated temperature sensor reduces component count vs. discrete thermal ICs. |
| Building Automation Sensor Node | Medical Portable Monitor |
|
Use Scenario: Battery-powered CO₂/temperature/humidity node with BLE gateway interface and local data buffering. IC Role / Device Role / Timing Role: Low-power sensor aggregator acquiring analog inputs, running RTC-triggered sampling, and managing UART-to-BLE bridge firmware. Use Value: 66 μA/MHz active current + SNOOZE mode cuts average power to <5 μA; 8 KB data flash retains 72 hrs of buffered readings offline. |
Use Scenario: Handheld pulse oximeter with optical sensing, display driver, and USB charging management. IC Role / Device Role / Timing Role: System-on-chip managing photodiode ADC acquisition, OLED SPI interface, LVD monitoring for battery safety, and USB enumeration. Use Value: −40°C to +105°C rating ensures reliability during sterilization cycles; internal 1.45 V reference guarantees consistent SpO₂ ADC accuracy across battery voltage range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101SLDFB#X0 | No data flash (0 KB); same 512 KB code flash, 32 KB RAM, and peripherals. | Suitable where firmware updates do not require field data retention - e.g., fixed-function controllers with read-only configuration. | Select when data logging or parameter storage is handled externally or unnecessary. |
| R5F100PLAFB#X0 | 100-pin LFQFP, 384 KB flash, 24 KB RAM, 8 KB data flash - smaller footprint, reduced memory. | Fits space-constrained designs like compact HVAC controllers or portable test equipment requiring fewer I/Os. | Choose for cost-optimized or size-limited implementations where 128-pin I/O headroom is excessive. |
Compared with R5F100SLDFB#X0, R5F101SLDFB#X0 removes data flash to reduce cost and complexity in static deployments, while R5F100PLAFB#X0 trades pin count and memory for compactness - enabling tiered design scaling without architectural rework.
Availability
R5F100SLDFB#X0 is available at Aetrix Electronics and suitable for smart energy metering, industrial motor control, and building automation sensor nodes requiring stable component supply, long-term industrial qualification, and guaranteed lifecycle continuity.
Supply support for R5F100SLDFB#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 enterprise markets.
The RL78/G13 product line targets cost-sensitive, ultra-low-power embedded control applications - balancing performance, energy efficiency, and integration for metering, home appliances, and factory equipment.
FAQ
What is the maximum operating frequency and corresponding power consumption of the R5F100SLDFB#X0?
The R5F100SLDFB#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 (32 MHz × 66 μA/MHz), verified per R01DS0131EJ0380 Rev.3.80 Section 1.1. This enables high responsiveness in real-time control while preserving battery life in intermittent-use applications.
Does the R5F100SLDFB#X0 include an integrated temperature sensor, and how is it calibrated?
Yes, the R5F100SLDFB#X0 includes an on-chip temperature sensor usable only in HS (high-speed main) mode, with output referenced to the internal 1.45 V bandgap. Calibration is factory-trimmed; raw ADC readings require linear conversion using slope/offset values stored in ROM - detailed in Section 24.3.3 of R01DS0131EJ0380 Rev.3.80. The sensor supports thermal monitoring in motor drives and medical devices.
How many serial communication interfaces does the R5F100SLDFB#X0 support, and which protocols are hardware-accelerated?
The R5F100SLDFB#X0 supports up to 10 I²C/Simplified I²C channels, 4 UART/LIN channels (with LIN 2.2 frame generation/detection), and 8 CSI (SPI-compatible) channels - all implemented in dedicated hardware with independent baud rate generators and FIFOs. No software bit-banging is required, freeing CPU bandwidth for application logic in multi-protocol gateways.
What packaging and temperature grade does the R5F100SLDFB#X0 carry, and how is this indicated in the part number?
The R5F100SLDFB#X0 uses a 128-pin LFQFP package (14 × 20 mm, 0.5-mm pitch) and is rated for −40°C to +105°C industrial operation (G-grade). This is encoded in the part number: "S" = 128-pin, "L" = 512 KB flash, "D" = data flash included, "F" = LFQFP, "B" = 0.5-mm pitch, and "G" implied by the "D" data flash + industrial temp spec per Figure 1-1 in R01DS0131EJ0380 Rev.3.80.
Can the R5F100SLDFB#X0 perform flash self-programming while executing code from memory?
Yes, the R5F100SLDFB#X0 supports self-programming of both code and data flash with boot swap and flash shield window functions. Code execution continues from protected flash blocks during data flash rewriting - enabled via Background Operation (BGO) mode. The flash library reserves specific RAM regions (e.g., F7F00H for "SL" variants) as documented in R01DS0131EJ0380 Rev.3.80 Section 1.6 and R20UT2944.
R5F100SLDFB#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 128-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:
- 110
- Program Memory Size:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 26x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F100SLDFB#X0 FAQ
1.How can I place an order for R5F100SLDFB#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100SLDFB#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 R5F100SLDFB#X0 reliable?
The price and inventory of R5F100SLDFB#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100SLDFB#X0 is usually 5 days.
3.What payment methods are accepted for R5F100SLDFB#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100SLDFB#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100SLDFB#X0?
R5F100SLDFB#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100SLDFB#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 R5F100SLDFB#X0?
For technical support, including R5F100SLDFB#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100SLDFB#X0 requirements.
6.How does Aetrix verify that R5F100SLDFB#X0 is sourced from the original manufacturer or authorized distributors?
All R5F100SLDFB#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 R5F100SLDFB#X0 meets industry standards.
7.What is the process for return or replacement of R5F100SLDFB#X0?
All R5F100SLDFB#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100SLDFB#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 R5F100SLDFB#X0 part is unused and in its original packaging.
Return procedure for R5F100SLDFB#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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