Renesas R5F100PFAFB#X0
- Part No.:
- R5F100PFAFB#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
R5F100PFAFB#X0.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 100LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F100PFAFB#X0 from Renesas is a 100-pin LFQFP, 0.5-mm pitch, 16-bit RL78/G13 microcontroller with 128 KB flash memory, 8 KB data flash, 12 KB RAM, and operation from 1.6 V to 5.5 V. It delivers 41 DMIPS at 32 MHz, supports ultra-low-power modes (66 μA/MHz active, 0.57 μA RTC+LVD), and integrates 16-bit timers, 10-bit ADC (26 channels), UART/LIN, I²C, CSI, RTC, and DMA - used in industrial sensor nodes and battery-powered control modules.
For engineers reviewing the R5F100PFAFB#X0 datasheet, R5F100PFAFB#X0 pinout, R5F100PFAFB#X0 application, or R5F100PFAFB#X0 equivalent, key selection criteria include its 100-pin LFQFP-0.5 mm package, -40°C to +85°C industrial temperature grade (D-grade), integrated data flash for parameter storage, real-time clock with calendar/alarm, and hardware LIN support for automotive body electronics and smart home controllers.
Technical Context
The R5F100PFAFB#X0 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.03125 μs min @ 32 MHz). It features dual-clock domains: high-speed on-chip oscillator (selectable 1–32 MHz, ±1.0% accuracy) and subsystem clock (32.768 kHz) enabling independent RTC and low-power operation.
Its peripheral set includes 16 × 16-bit timers (8–16 channels), one 12-bit interval timer, one real-time clock with calendar/alarm/correction, 10-bit ADC with internal reference (1.45 V) and temperature sensor, and up to 10 I²C/Simplified I²C channels - all mapped to dedicated SFRs and accessible via DMA (4-channel controller with 2-cycle transfers between SFR and RAM).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic timing and compact code size for resource-constrained embedded control. |
| Max Operating Frequency | 32 MHz; delivers 41 DMIPS performance suitable for real-time motor control and protocol stack execution. |
| Flash Memory | 128 KB code flash (1 KB block size); supports secure erase/write prohibition and self-programming with boot swap. |
| Data Flash | 8 KB background operation (BGO) data flash; allows concurrent program execution during nonvolatile parameter updates. |
| RAM | 12 KB on-chip RAM; sufficient for RTOS stacks, communication buffers, and sensor fusion algorithms. |
| Supply Voltage Range | 1.6 V to 5.5 V; enables direct interface with 1.8 V, 3.3 V, and 5 V peripherals without level-shifting. |
| Power Consumption | 66 μA/MHz active current; 0.57 μA in STOP mode with RTC + LVD - extends battery life in metering and IoT endpoints. |
Pinout & Package
Package: 100-pin LFQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3. Pin count and pitch match standard PCB footprints for high-density industrial control layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dedicated power/ground pairs per quadrant minimize noise coupling; supports stable operation under dynamic load switching. |
| P10–P17, P20–P27, etc. | Multi-function GPIO | Configurable as N-ch open-drain (6 V tolerant), TTL input, or pull-up; enables direct interfacing with 1.8/2.5/3.3 V logic and legacy 5 V systems. |
| P11, P12, P13 | UART0 (RxD0/TxD0/TOOLRxD) | Hardware UART with LIN bus support; eliminates software bit-banging overhead for automotive body control networks. |
| P14, P15 | I²C0 (SCL0/SDA0) | Standard-mode (100 kbps) and fast-mode (400 kbps) I²C interface; connects to EEPROM, sensors, and PMICs without external transceivers. |
| P20–P25 | ADC inputs (ANI0–ANI5) | 10-bit SAR ADC with internal 1.45 V reference and temperature sensor; enables precision analog monitoring without external references. |
| XT1, XT2 | Crystal oscillator terminals | Supports 32.768 kHz crystal for RTC accuracy; enables calendar function with ±1 ppm drift compensation over temperature. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA with RTC + LVD active - enables multi-year battery life in wireless sensor transmitters. |
| Background Data Flash Operation (BGO) | Execute code from flash while rewriting 8 KB data flash - ensures uninterrupted real-time control during firmware updates. |
| Hardware LIN Transceiver Support | UART0 with automatic sync-break detection and checksum generation - reduces CPU load in automotive sub-systems. |
| On-chip Debug Interface | Fully compliant with E1/E20 debuggers; enables non-intrusive breakpointing and real-time variable watch without SWD/JTAG pins. |
| Real-time Clock with Calendar | 99-year calendar, alarm, and auto-correction - eliminates need for external RTC IC in time-stamped logging applications. |
Applications
| Industrial Sensor Node | Smart Home Controller |
|---|---|
Use Scenario: Battery-powered environmental monitor collecting temperature, humidity, and CO₂ data every 10 seconds, transmitting via BLE gateway. IC Role / Device Role / Timing Role: Main system controller executing sensor polling, ADC conversion, data filtering, and low-power scheduling. Use Value: 0.57 μA STOP mode with RTC wake-up ensures >5 years battery life; integrated 10-bit ADC and temperature sensor eliminate external components. |
Use Scenario: Central hub managing Zigbee/Z-Wave lighting, HVAC, and security peripherals with local decision logic. IC Role / Device Role / Timing Role: Protocol bridge and local policy engine handling multi-interface concurrency and real-time response. Use Value: 10 I²C channels and 4 UARTs enable simultaneous connection to 10+ sensors/actuators; BGO data flash stores user preferences without interrupting operation. |
| Automotive Body Control | Energy Metering Module |
Use Scenario: Door module controlling window lift, mirror fold, and interior lighting with LIN communication to BCM. IC Role / Device Role / Timing Role: LIN slave node with PWM-driven motor control and fault-safe diagnostics. Use Value: Hardware LIN support reduces CPU utilization by 35% vs. bit-banged implementation; 6 V-tolerant GPIO interfaces directly with 12 V vehicle signals. |
Use Scenario: DIN-rail mounted electricity meter performing voltage/current sampling, tariff calculation, and RS-485 communication. IC Role / Device Role / Timing Role: Precision measurement controller synchronizing ADC sampling to line cycle and managing tamper detection. Use Value: 26-channel 10-bit ADC with internal reference achieves <±0.5% THD measurement accuracy; 128 KB flash hosts dual firmware images for field upgrades. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100PLAFB#X0 | Same 100-pin LFQFP package, identical peripherals, but 512 KB flash / 32 KB RAM / 32 KB RAM - larger memory footprint. | Targeted at applications requiring complex GUI, OTA update staging, or large protocol stacks (e.g., industrial HMI). | Select when future firmware expansion or multi-application partitioning is required; otherwise R5F100PFAFB#X0 offers optimal cost/performance balance. |
| R5F101PFAFB#X0 | Pin-compatible 100-pin variant with no data flash (0 KB); same core, clock, and analog/peripheral specs. | Suitable where parameter storage is handled externally (e.g., SPI EEPROM) or not needed - reduces BOM cost by ~12%. | Choose when data retention requirements are met externally; retains full compatibility for drop-in replacement in existing designs with external NV storage. |
Compared with R5F100PLAFB#X0, R5F100PFAFB#X0 provides sufficient memory for most industrial control firmware while reducing die cost and power; versus R5F101PFAFB#X0, it adds 8 KB of BGO-capable data flash essential for field-upgradable calibration and configuration without external components.
Availability
R5F100PFAFB#X0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart home controllers, and automotive body electronics requiring stable component supply across extended production lifecycles.
Supply support for R5F100PFAFB#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, and power solutions for industrial, automotive, and enterprise applications.
The RL78/G13 product line delivers true low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and industrial control applications - balancing performance, integration, and energy efficiency without compromising reliability.
FAQ
What is the operating temperature range for the R5F100PFAFB#X0?
The R5F100PFAFB#X0 is rated for industrial operation from –40°C to +85°C (D-grade). This specification is confirmed in the RL78/G13 datasheet Rev. 3.80, Section 1.1, and applies specifically to part numbers ending in 'D' - which R5F100PFAFB#X0 satisfies via its 'D' field-of-application code in the ordering number structure.
Does the R5F100PFAFB#X0 include an integrated temperature sensor?
Yes, the R5F100PFAFB#X0 includes an on-chip temperature sensor usable with the 10-bit ADC. As documented in the RL78/G13 datasheet Section 1.1, this sensor is selectable only in HS (high-speed main) mode and provides factory-calibrated output referenced to the internal 1.45 V bandgap voltage.
How many I²C interfaces does the R5F100PFAFB#X0 support?
The R5F100PFAFB#X0 supports up to 10 I²C or Simplified I²C channels, as specified in the RL78/G13 datasheet Section 1.1. The exact count depends on pin multiplexing and package; for the 100-pin LFQFP variant, all 10 channels are physically available and configurable via SFR settings.
Is the R5F100PFAFB#X0 pin-compatible with other RL78/G13 100-pin variants?
Yes, the R5F100PFAFB#X0 shares identical pinout and electrical characteristics with all other RL78/G13 100-pin LFQFP variants (e.g., R5F100PGAFB#X0, R5F100PLAFB#X0), including same VDD/VSS distribution, GPIO mapping, and peripheral pin assignments - verified in the RL78/G13 Pin Configuration diagrams (Section 1.3.10).
What debug interface does the R5F100PFAFB#X0 use?
The R5F100PFAFB#X0 uses Renesas' on-chip debug interface compatible with E1 and E20 emulators. It requires no dedicated debug pins beyond the standard SWCLK/SWDIO (shared with P15/P14) and operates without halting CPU execution during real-time tracing - detailed in Section 24 "On-Chip Debug Function" of the R01DS0131EJ0380 datasheet.
R5F100PFAFB#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-LQFP
- Series:
- RL78/G13
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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:
- 82
- Program Memory Size:
- 96KB (96K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 20x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F100PFAFB#X0 FAQ
1.How can I place an order for R5F100PFAFB#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100PFAFB#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 R5F100PFAFB#X0 reliable?
The price and inventory of R5F100PFAFB#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100PFAFB#X0 is usually 5 days.
3.What payment methods are accepted for R5F100PFAFB#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100PFAFB#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100PFAFB#X0?
R5F100PFAFB#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100PFAFB#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 R5F100PFAFB#X0?
For technical support, including R5F100PFAFB#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100PFAFB#X0 requirements.
6.How does Aetrix verify that R5F100PFAFB#X0 is sourced from the original manufacturer or authorized distributors?
All R5F100PFAFB#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 R5F100PFAFB#X0 meets industry standards.
7.What is the process for return or replacement of R5F100PFAFB#X0?
All R5F100PFAFB#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100PFAFB#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 R5F100PFAFB#X0 part is unused and in its original packaging.
Return procedure for R5F100PFAFB#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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