Renesas R5F100JDDFA#V0
- Part No.:
- R5F100JDDFA#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F100JDDFA#V0.pdf
- Description:
- IC MCU 16BIT 48KB FLASH 52LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:3,459
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F100JDDFA#V0 from Renesas is a 52-pin LQFP-0.65mm, industrial-grade RL78/G13 16-bit MCU with 256 KB flash, 8 KB data flash, 20 KB RAM, and ultra-low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD mode) for embedded control in HVAC, motor drives, and smart sensors.
For engineers reviewing the R5F100JDDFA#V0 datasheet, R5F100JDDFA#V0 pinout, R5F100JDDFA#V0 application, or R5F100JDDFA#V0 equivalent, key selection criteria include its 32 MHz max CPU speed, integrated 10-bit 26-channel ADC, real-time clock with calendar/alarm, and support for LIN-bus UART and I²C interfaces in a compact 10×10 mm package.
Technical Context
The R5F100JDDFA#V0 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, enabling instruction execution times from 0.03125 μs (32 MHz HS mode) to 30.5 μs (32.768 kHz subsystem clock). It integrates a 12-bit interval timer, 16-bit timers (12 channels), and a dedicated watchdog timer with low-speed on-chip oscillator.
It features dual memory architecture: 256 KB code flash (1 KB block size, self-programming with boot swap) and 8 KB data flash supporting background operation (BGO) and 1M write cycles. Power management includes HALT/STOP/SNOOZE modes, on-chip POR, and 14-level LVD with selectable interrupt/reset.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Max Clock Speed | 32 MHz using high-accuracy ±1.0% on-chip oscillator (1.8–5.5 V, –20 to +85°C) |
| Memory | 256 KB code flash (1 KB blocks), 8 KB data flash (BGO enabled), 20 KB RAM |
| ADC | 10-bit resolution, 26 analog inputs, internal 1.45 V reference and temperature sensor |
| Timers | 12 × 16-bit timers, 1 × 12-bit interval timer, 1 × real-time clock (99-year calendar + alarm) |
| I/O & Interfaces | 44 programmable I/O pins; 3 × I²C, 4 × UART/LIN, 2 × CSI (SPI-compatible), DMA (4 channels) |
| Power | 1.6–5.5 V supply; 66 μA/MHz active current; 0.57 μA in RTC+LVD-only mode |
Pinout & Package
Package: 52-pin LQFP (10 × 10 mm, 0.65 mm pitch), industrial temperature grade (–40°C to +85°C), tray packaging (#V0).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | Serial clock input/output | Shared SPI clock (CSI0) and I²C clock (SCL0); supports master/slave modes |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Serial data input / UART receive / debug RX / I²C data | Multi-function pin enabling SPI input, UART receive, on-chip debug communication, and I²C bidirectional data |
| P12/SO00/TxD0/TOOLTxD/SDA00 | Serial data output / UART transmit / debug TX / I²C data | Enables full-duplex serial comms (SPI/UART/I²C) and debug interface without external level shifters |
| P13/INTP0/ANI3 | External interrupt / analog input | Dual-role pin for edge-triggered wake-up from STOP mode and ADC channel 3 input |
| P20/ANI0/AVREFP | Analog input / ADC reference positive | Primary analog input channel 0 and selectable positive reference for ADC voltage measurement |
| P21/ANI1/AVREFM | Analog input / ADC reference negative | Analog input channel 1 and selectable negative reference-enables ratiometric or differential ADC configurations |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.57 μA RTC+LVD retention enables battery-powered operation >10 years on coin cell |
| Self-programmable flash | Boot swap and flash shield window allow safe field firmware updates without external programmer |
| Background data flash writes | BGO enables concurrent program execution and data logging-no CPU stall during flash writes |
| Multi-protocol serial support | Hardware-peripheral sharing across UART (LIN), I²C, and CSI reduces firmware complexity and pin count |
| Temperature sensor & reference | Integrated 1.45 V reference and calibrated temperature sensor eliminate external components for thermal monitoring |
Applications
| Smart Thermostats | Industrial Motor Controllers |
|---|---|
|
Use Scenario: Embedded HVAC control unit managing temperature sensing, relay actuation, display, and wireless communication. IC Role / Device Role / Timing Role: Main system controller executing PID loops, reading thermistor/RTD inputs via 10-bit ADC, driving triac/relay outputs, and maintaining real-time scheduling via RTC calendar. Use Value: Ultra-low standby current extends battery life in wireless thermostats; integrated LIN UART simplifies connection to HVAC bus networks. |
Use Scenario: Compact BLDC motor drive for pumps, fans, or conveyors requiring closed-loop commutation and fault protection. IC Role / Device Role / Timing Role: Real-time motor control unit generating PWM signals, sampling current/voltage feedback, detecting overcurrent via comparator interrupts, and executing FOC algorithms. Use Value: 12-channel 16-bit timers provide precise phase timing; 26-channel ADC enables simultaneous current, voltage, and temperature monitoring. |
| Smart Energy Meters | Medical Diagnostic Sensors |
|
Use Scenario: DIN-rail mounted electricity meter performing energy calculation, tamper detection, and RS-485 communication. IC Role / Device Role / Timing Role: System-on-chip handling metrology ADC sampling, pulse counting, secure firmware updates via data flash BGO, and time-stamped event logging. Use Value: 8 KB data flash with 1M write endurance stores decades of billing history; LVD interrupt detects brown-out for graceful shutdown and data integrity. |
Use Scenario: Portable patient monitor measuring ECG, SpO₂, and temperature with low-power wireless telemetry. IC Role / Device Role / Timing Role: Signal acquisition controller interfacing analog front-end, running digital filters, managing Bluetooth LE connectivity, and maintaining accurate timestamps. Use Value: Integrated temperature sensor and 1.45 V reference enable calibration-free analog measurements; SNOOZE mode reduces power during idle sensing intervals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100JDFB#V0 | Same RL78/G13 core, identical memory (256 KB/8 KB/20 KB), but in 52-pin LFQFP (0.5 mm pitch, 7×7 mm) | Requires PCB redesign due to smaller footprint and finer pitch; better suited for space-constrained portable designs | Select when board area is critical and re-layout is feasible; verify thermal derating at 105°C if used in extended temp environments |
| R5F101JDDFA#V0 | Same package and pinout, but lacks data flash (0 KB); retains 256 KB code flash and 20 KB RAM | Not suitable for applications requiring nonvolatile parameter storage or firmware update logging | Choose only if data flash functionality is unnecessary-reduces cost and simplifies flash management, but eliminates BGO and field update capability |
Compared with R5F100JDDFA#V0, R5F100JDFB#V0 offers identical functionality in a smaller 7×7 mm LFQFP, while R5F101JDDFA#V0 removes data flash entirely-making it unsuitable for systems needing runtime parameter persistence or secure firmware updates.
Availability
R5F100JDDFA#V0 is available at Aetrix Electronics and suitable for HVAC control systems, industrial motor drives, and smart energy meters requiring stable component supply, long-term lifecycle support, and industrial-temperature reliability.
Supply support for R5F100JDDFA#V0 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 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and industrial embedded applications requiring robust peripheral integration and long-term supply assurance.
FAQ
What is the operating temperature range for R5F100JDDFA#V0?
The R5F100JDDFA#V0 is rated for industrial operation from –40°C to +85°C, as indicated by the 'D' suffix in its part number. It does not support the extended +105°C range (which requires 'G' suffix variants like R5F100JDGFA#V0). This makes R5F100JDDFA#V0 suitable for factory automation, motor drives, and building control systems where ambient temperatures remain within this envelope.
Does R5F100JDDFA#V0 include an integrated temperature sensor?
Yes, the R5F100JDDFA#V0 includes a factory-calibrated on-chip temperature sensor usable via the 10-bit ADC. It is accessible through the ANI19 channel and operates across the full –40°C to +85°C range with typical accuracy of ±3°C. This eliminates the need for external thermal sensors in applications such as thermal throttling, ambient monitoring, or system health diagnostics.
Can R5F100JDDFA#V0 execute code while writing to data flash memory?
Yes, the R5F100JDDFA#V0 supports Background Operation (BGO) for data flash writes. This allows the CPU to continue executing instructions from program memory while the data flash is being rewritten-enabling seamless data logging, configuration updates, or firmware patching without interrupting real-time tasks or introducing latency spikes.
What debug interface does R5F100JDDFA#V0 support?
The R5F100JDDFA#V0 supports on-chip debugging via the single-wire SWD (Serial Wire Debug) interface using dedicated TOOLRxD and TOOLTxD pins (P11 and P12). It is compatible with Renesas E2 emulator and standard ARM Cortex-M debug tools, enabling full breakpoint, watchpoint, and memory inspection capabilities without requiring JTAG pins or additional hardware.
Is R5F100JDDFA#V0 pin-compatible with other RL78/G13 52-pin variants?
Yes, all RL78/G13 52-pin LQFP variants-including R5F100JCAFA#V0, R5F100JEAFA#V0, and R5F100JGAFA#V0-share identical pinouts and package dimensions. The R5F100JDDFA#V0 differs only in memory configuration (256 KB flash / 8 KB data flash / 20 KB RAM) and industrial temperature rating, allowing drop-in replacement within the same family for design reuse and scalability.
R5F100JDDFA#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-LQFP
- Series:
- RL78/G13
- Packaging:
- Tray
- 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:
- 48KB (48K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 3K 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:
R5F100JDDFA#V0 FAQ
1.How can I place an order for R5F100JDDFA#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100JDDFA#V0 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 R5F100JDDFA#V0 reliable?
The price and inventory of R5F100JDDFA#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100JDDFA#V0 is usually 5 days.
3.What payment methods are accepted for R5F100JDDFA#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100JDDFA#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100JDDFA#V0?
R5F100JDDFA#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100JDDFA#V0 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 R5F100JDDFA#V0?
For technical support, including R5F100JDDFA#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100JDDFA#V0 requirements.
6.How does Aetrix verify that R5F100JDDFA#V0 is sourced from the original manufacturer or authorized distributors?
All R5F100JDDFA#V0 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 R5F100JDDFA#V0 meets industry standards.
7.What is the process for return or replacement of R5F100JDDFA#V0?
All R5F100JDDFA#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100JDDFA#V0, 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 R5F100JDDFA#V0 part is unused and in its original packaging.
Return procedure for R5F100JDDFA#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F100JDDFA#V0 Tags

-
ATTINY4-TSHR
Microchip Technology

-
ATTINY10-TSHR
Microchip Technology

-
ATTINY10-TS8R
Microchip Technology

-
ATTINY202-SSNR
Microchip Technology

-
ATTINY202-SSFR
Microchip Technology

-
ATTINY402-SSNR
Microchip Technology

-
PIC16F15213T-I/MF
Microchip Technology

-
PIC16F15213-E/MF
Microchip Technology

-
PIC10F200T-I/OT
Microchip Technology

-
ATTINY412-SSNR
Microchip Technology

-
PIC10F202T-I/OT
Microchip Technology

-
ATTINY404-SSNR
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

