Renesas R5F100JCDFA#X0
- Part No.:
- R5F100JCDFA#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F100JCDFA#X0.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 52LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F100JCDFA#X0 from Renesas is a 52-pin LQFP-0.65mm MCU in the RL78/G13 family, featuring 256 KB flash, 8 KB data flash, 20 KB RAM, 16-bit RL78 CPU core, and ultra-low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD). It targets battery-powered industrial control, sensor nodes, and smart metering systems requiring high integration and long runtime.
For engineers reviewing the R5F100JCDFA#X0 datasheet, R5F100JCDFA#X0 pinout, R5F100JCDFA#X0 application, or R5F100JCDFA#X0 equivalent, key selection criteria include its 52-pin LQFP package, 256 KB code flash with self-programming, 10-bit 26-channel ADC, real-time clock with calendar, and support for LIN-bus UART and I²C interfaces in industrial temperature range (–40°C to +85°C).
Technical Context
The R5F100JCDFA#X0 implements the RL78 CISC CPU core with 3-stage pipeline, supporting instruction execution times from 0.03125 μs (32 MHz) to 30.5 μs (32.768 kHz), and operates across 1.6–5.5 V supply. Its memory subsystem includes 256 KB on-chip flash (1 KB block size), 8 KB data flash with background operation (BGO), and 20 KB RAM - all accessible under HALT/STOP/SNOOZE low-power modes.
Peripheral integration includes up to 26-channel 10-bit ADC with internal 1.45 V reference and temperature sensor, 16× 16-bit timers (including RTC with alarm/calendar), 3–10 channel I²C, 2–4 UART/LIN channels, and 2–8 CSI (SPI-compatible) interfaces - all configurable via dedicated SFRs and DMA channels (4-channel controller with 2-cycle transfers).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline, 41 DMIPS @ 32 MHz |
| Flash Memory | 256 KB code flash (1 KB erase blocks); supports boot swap and flash shield window |
| Data Flash | 8 KB with background operation (BGO); 1M rewrite cycles (TYP), VDD = 1.8–5.5 V |
| RAM | 20 KB on-chip RAM; used by flash library starting at FAF00H address |
| ADC | 10-bit resolution, 26 analog inputs, internal 1.45 V reference, integrated temperature sensor |
| Operating Temp | –40°C to +85°C (Industrial grade D-series); meets AEC-Q100 not applicable |
| Power Modes | HALT (66 μA/MHz), STOP (0.57 μA w/ RTC+LVD), SNOOZE (low-latency wake) |
Pinout & Package
Package: 52-pin LQFP, 10 mm × 10 mm, 0.65 mm pitch, exposed pad not specified, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | Port 10 / SPI Clock / I²C Clock | Multi-function pin supporting master/slave SPI clock or I²C bus clock; shared with on-chip oscillator output |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Port 11 / SPI Input / UART RX / Debug RX / I²C Data | High-density I/O pin enabling simultaneous use cases: SPI data input, UART receive, debug interface, or I²C bidirectional data line |
| P12/SO00/TxD0/TOOLTxD/SDA00 | Port 12 / SPI Output / UART TX / Debug TX / I²C Data | Enables full-duplex serial communication (SPI, UART, I²C) and on-chip debugging without external level shifters |
| P13/INTP0/ANI3 | Port 13 / External Interrupt 0 / Analog Input 3 | Dual-role pin for fast edge-triggered interrupt or analog sensing; supports wake-up from STOP mode |
| P14/INTP1/ANI4 | Port 14 / External Interrupt 1 / Analog Input 4 | Configurable as interrupt source or ADC channel; enables low-power event-driven sensing |
| P15/INTP2/ANI5 | Port 15 / External Interrupt 2 / Analog Input 5 | Supports priority-based interrupt nesting and analog acquisition in same pin group |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power architecture | 66 μA/MHz active current and 0.57 μA STOP mode enable multi-year battery life in sensor endpoints |
| Self-programmable flash | Boot swap and flash shield window allow secure firmware updates without external programmer |
| Background data flash write | BGO enables concurrent program execution and data logging - critical for real-time data acquisition |
| Integrated RTC with calendar | 99-year calendar, alarm, and clock correction eliminate need for external timekeeping ICs |
| Multi-protocol serial interface | Hardware support for UART/LIN, I²C, and CSI (SPI-compatible) reduces software overhead and pin count |
Applications
| Smart Energy Meters | Industrial Sensor Nodes |
|---|---|
Use Scenario: Residential/utility electricity meters requiring tamper-resistant firmware, time-of-use billing, and long-life battery backup. IC Role / Device Role / Timing Role: Main system controller managing metrology ADC interface, RTC-based tariff switching, secure flash updates, and optical/IR communication. Use Value: Integrated 10-bit ADC with temperature sensor and 8 KB data flash enable local calibration storage and lifetime energy logging without external memory. |
Use Scenario: Wireless or wired environmental monitoring units deployed in factory floors or remote sites with limited maintenance access. IC Role / Device Role / Timing Role: Central acquisition unit sampling temperature, humidity, and vibration sensors; scheduling transmissions via UART/LIN or I²C to gateway. Use Value: STOP-mode current of 0.57 μA extends battery life beyond 5 years when paired with duty-cycled sensing and RTC wake-up. |
| Home Appliance Control | Building Automation Controllers |
Use Scenario: Mid-tier washing machines, HVAC controllers, or induction cooktops needing responsive UI, motor control timing, and safety monitoring. IC Role / Device Role / Timing Role: Primary MCU handling touch panel interface, PWM motor drive timing, fault detection (LVD), and thermal shutdown logic. Use Value: On-chip voltage detector with 14-level selection and hardware watchdog ensure fail-safe operation without external supervisors. |
Use Scenario: DIN-rail mounted controllers managing lighting, blinds, and HVAC zones in commercial buildings using BACnet MS/TP or proprietary LIN networks. IC Role / Device Role / Timing Role: Protocol bridge and scheduler executing timed commands, reading occupancy sensors, and driving relay outputs via GPIO. Use Value: 26-channel ADC and 16× 16-bit timers support simultaneous analog monitoring and precise actuator timing across multiple zones. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F101JCDFA#X0 | No data flash (0 KB); identical pinout, peripherals, and code flash (256 KB) | Not suitable for field firmware updates or parameter logging; requires external EEPROM/NV memory | Select only if data retention requirements are met externally and cost reduction is prioritized |
| R5F100JCGFA#X0 | Same flash/RAM specs but rated for –40°C to +105°C (G-grade); higher max junction temperature | Required for under-hood automotive or high-ambient industrial enclosures exceeding +85°C | Choose when operating ambient exceeds +85°C; otherwise R5F100JCDFA#X0 offers optimal cost/performance balance |
Compared with R5F100JCDFA#X0, R5F101JCDFA#X0 removes data flash to reduce cost and die size but sacrifices in-system reconfiguration capability, while R5F100JCGFA#X0 extends temperature range at higher test cost - making R5F100JCDFA#X0 the default choice for standard industrial environments.
Availability
R5F100JCDFA#X0 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, and home appliance control requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for R5F100JCDFA#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 enterprise markets.
The RL78/G13 product line delivers ultra-low-power, cost-optimized MCUs for general-purpose embedded applications - emphasizing energy efficiency, peripheral integration, and seamless toolchain compatibility with e² studio and CS+.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F100JCDFA#X0?
The R5F100JCDFA#X0 operates up to 32 MHz using its high-speed on-chip oscillator (±1.0% accuracy), delivering 41 DMIPS. Its minimum instruction execution time is 0.03125 μs at 32 MHz, and it supports dynamic clock scaling down to 32.768 kHz for ultra-low-power RTC operation - all within the same R5F100JCDFA#X0 device.
Does the R5F100JCDFA#X0 support in-application programming (IAP) of its flash memory?
Yes, the R5F100JCDFA#X0 supports self-programming of both code and data flash memory via on-chip firmware libraries. It includes boot swap functionality and flash shield window protection to prevent unauthorized access during updates - enabling secure over-the-air or field firmware upgrades without external tools on the R5F100JCDFA#X0.
What analog features are integrated into the R5F100JCDFA#X0?
The R5F100JCDFA#X0 integrates a 10-bit successive-approximation ADC with up to 26 input channels, internal 1.45 V reference voltage, and an on-chip temperature sensor. These analog resources operate across the full 1.6–5.5 V supply range and are accessible in all low-power modes except deep STOP - making them fully usable on the R5F100JCDFA#X0 for sensor interfacing and system health monitoring.
How many serial communication interfaces does the R5F100JCDFA#X0 provide, and what protocols do they support?
The R5F100JCDFA#X0 provides up to 10 serial channels: 3–10 I²C/Simplified I²C, 2–4 UART/LIN (with LIN 2.1/2.2 support), and 2–8 CSI (SPI-compatible). All are hardware-peripheral based, supporting independent baud rates and interrupt-driven operation - eliminating bit-banging overhead and ensuring deterministic timing on the R5F100JCDFA#X0.
What power management features help extend battery life in applications using the R5F100JCDFA#X0?
The R5F100JCDFA#X0 offers HALT (66 μA/MHz), STOP (0.57 μA with RTC + LVD active), and SNOOZE modes. Its on-chip LVD supports 14 selectable voltage thresholds with interrupt/reset options, and the dedicated low-speed watchdog timer runs independently of main clock - collectively enabling robust, ultra-low-power operation essential for battery-powered designs built around the R5F100JCDFA#X0.
R5F100JCDFA#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-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:
- 38
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 2K 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:
R5F100JCDFA#X0 FAQ
1.How can I place an order for R5F100JCDFA#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100JCDFA#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 R5F100JCDFA#X0 reliable?
The price and inventory of R5F100JCDFA#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100JCDFA#X0 is usually 5 days.
3.What payment methods are accepted for R5F100JCDFA#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100JCDFA#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100JCDFA#X0?
R5F100JCDFA#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100JCDFA#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 R5F100JCDFA#X0?
For technical support, including R5F100JCDFA#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100JCDFA#X0 requirements.
6.How does Aetrix verify that R5F100JCDFA#X0 is sourced from the original manufacturer or authorized distributors?
All R5F100JCDFA#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 R5F100JCDFA#X0 meets industry standards.
7.What is the process for return or replacement of R5F100JCDFA#X0?
All R5F100JCDFA#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100JCDFA#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 R5F100JCDFA#X0 part is unused and in its original packaging.
Return procedure for R5F100JCDFA#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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