Renesas R5F100JDAFA#10
- Part No.:
- R5F100JDAFA#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F100JDAFA#10.pdf
- Description:
- IC MCU 16BIT 48KB FLASH 52LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:1,280
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Product details
Overview
R5F100JDAFA#10 from Renesas is a 52-pin LQFP-0.65mm 8-bit RL78/G13 microcontroller with 128 KB flash, 8 KB data flash, 12 KB RAM, 10-bit ADC (26 channels), and real-time clock - designed for industrial sensor nodes and low-power HMI control requiring -40°C to +85°C operation.
For engineers reviewing the R5F100JDAFA#10 datasheet, R5F100JDAFA#10 pinout, R5F100JDAFA#10 application, or R5F100JDAFA#10 equivalent, key selection criteria include its 66 μA/MHz active current, 0.57 μA RTC+LVD standby mode, integrated LIN-capable UART, and hardware multiplier/divider supporting deterministic motor control loops.
Technical Context
The R5F100JDAFA#10 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz HS mode) to 30.5 μs (32.768 kHz subsystem clock). It integrates dual-clock domains: high-speed on-chip oscillator (±1.0% accuracy, 1–32 MHz selectable) and dedicated low-speed oscillator for watchdog and RTC.
Its peripheral set includes 8× 16-bit timers, 1× 12-bit interval timer, 1× calendar RTC with alarm/correction, 2–4-channel DMA, and serial interfaces comprising up to 8 CSI/SPI, 4 UART/LIN, and 10 I²C channels - all configurable via register-based control without external glue logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 8-bit CISC with 3-stage pipeline, 41 DMIPS @ 32 MHz |
| Flash / Data Flash / RAM | 128 KB code flash, 8 KB data flash (1M rewrite cycles), 12 KB SRAM |
| Supply Voltage | 1.6 V to 5.5 V - enables direct interface with 1.8/2.5/3.3/5 V peripherals |
| Power Modes | HALT (66 μA/MHz), STOP (0.57 μA), SNOOZE - supports battery-powered field devices |
| ADC | 10-bit resolution, 26 input channels, internal 1.45 V reference and temperature sensor |
| Timers & RTC | 8× 16-bit timers, 1× 12-bit interval timer, 1× calendar RTC (99-year range, alarm, correction) |
| Serial Interfaces | Up to 8 CSI/SPI, 4 UART/LIN, 10 I²C - LIN support enables automotive body electronics integration |
Pinout & Package
Package: 52-pin LQFP, 10 × 10 mm, 0.65 mm pitch, exposed pad (PLQP0052JA-A).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | Port 10 / SPI Clock / I²C Clock | Multi-function pin supporting synchronous serial master/slave operation and I²C bus timing |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Port 11 / SPI Input / UART RX / Debug RX / I²C Data | Shared debug, communication, and peripheral interface pin - simplifies PCB routing in space-constrained designs |
| P20/ANI0/AVREFP | Analog Input 0 / ADC Reference Positive | Configurable as analog input or precision ADC reference voltage source - improves measurement stability |
| P21/ANI1/AVREFM | Analog Input 1 / ADC Reference Negative | Enables differential ADC measurements or ratiometric sensing when used with AVREFP |
| P50/INTP0/TOOLn | External Interrupt 0 / Debug Reset Input | Dual-role pin for wake-up from STOP mode and hardware debugger reset - reduces BOM count |
Key Features
| Feature | Design Value |
|---|---|
| Self-programming flash | Boot swap and flash shield window enable secure firmware updates without external programmer |
| Background data flash rewrite | BGO allows full CPU operation during 4–8 KB data flash rewrites - critical for logging applications |
| Hardware multiplier/divider | 16×16→32-bit multiply, 32÷32→32-bit divide, and MAC - accelerates PID and filter calculations |
| On-chip voltage detector | 14-level LVD with interrupt/reset selection - ensures reliable brown-out recovery in industrial environments |
| Different-potential I/O | N-ch open drain ports tolerate 6 V and support 1.8/2.5/3 V logic interfacing - eliminates level shifters |
Applications
| Industrial Sensor Node | Smart Thermostat HMI |
|---|---|
Use Scenario: Battery-powered temperature/humidity/pressure sensor with wireless telemetry. IC Role / Device Role / Timing Role: Main controller executing sensor acquisition, calibration, low-power scheduling, and UART-to-Sub-GHz radio handoff. Use Value: 0.57 μA STOP mode with RTC wake-up extends 2xAA battery life beyond 5 years; 10-bit ADC with internal reference ensures ±1°C thermal accuracy. |
Use Scenario: Wall-mounted HVAC controller with capacitive touch, display, and relay drivers. IC Role / Device Role / Timing Role: System-on-chip managing UI responsiveness, environmental monitoring, and safety-critical relay sequencing. Use Value: 26-channel ADC supports multi-sensor fusion; hardware multiplier enables real-time dew-point calculation; LIN UART interfaces with HVAC zone controllers. |
| Programmable Logic Relay | Energy Meter Front-End |
Use Scenario: DIN-rail mounted I/O module with configurable digital inputs/outputs and Modbus RTU. IC Role / Device Role / Timing Role: Deterministic state machine executor with precise 1 ms timer interrupts for scan-cycle timing. Use Value: 8× 16-bit timers provide independent PWM and capture for pulse counting; 4 KB data flash stores configuration and event logs across power cycles. |
Use Scenario: Residential electricity meter measuring voltage/current/energy via shunt or CT sensors. IC Role / Device Role / Timing Role: Metrology co-processor handling ADC sampling, RMS calculation, and tamper detection logic. Use Value: 10-bit ADC with 26 channels accommodates auxiliary sensors; RTC with calendar enables time-of-use billing; 128 KB flash hosts certified metrology firmware. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100JDGFA#10 | Same core, package, and memory; rated for -40°C to +105°C industrial operation | Required for extended-temperature environments (e.g., outdoor utility meters, engine bay controls) | Select when ambient operating temperature exceeds +85°C |
| R5F101JDAFA#10 | Identical pinout and peripherals but lacks data flash (0 KB); reduced code flash (96 KB) | Suitable for cost-sensitive, fixed-function applications where field firmware updates or parameter storage are unnecessary | Choose when data flash persistence is not required and BOM cost reduction is prioritized |
Compared with R5F100JDAFA#10, R5F100JDGFA#10 delivers extended thermal reliability without sacrificing features, while R5F101JDAFA#10 trades data flash and code size for lower unit cost - enabling tiered product variants from a single PCB design.
Availability
R5F100JDAFA#10 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat HMIs, programmable logic relays, and energy meter front-ends requiring stable component supply across multi-year production cycles.
Supply support for R5F100JDAFA#10 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 family targets cost-sensitive, ultra-low-power general-purpose embedded systems - balancing performance, integration, and energy efficiency for battery-operated and mains-powered industrial controls.
FAQ
What is the maximum operating frequency and corresponding power consumption of the R5F100JDAFA#10?
The R5F100JDAFA#10 operates at up to 32 MHz using its high-speed on-chip oscillator, delivering 41 DMIPS with 66 μA/MHz active current. At 32 MHz and 3.3 V supply, typical active current is 2.1 mA. Its STOP mode draws just 0.57 μA with RTC and LVD enabled - verified per R01DS0131EJ0380 Rev.3.80, Section 1.1.
Does the R5F100JDAFA#10 support in-system programming and secure firmware updates?
Yes, the R5F100JDAFA#10 supports full in-system programming via on-chip debug interface and includes boot swap functionality plus flash shield window protection. These features allow safe over-the-air or field firmware updates while preventing unauthorized access to protected code sections - confirmed in Section 1.1 "Code flash memory" of the datasheet.
How many analog input channels does the R5F100JDAFA#10 ADC support, and what reference options are available?
The R5F100JDAFA#10 integrates a 10-bit successive-approximation ADC with up to 26 analog input channels. It supports external VDD/VSS references, internal 1.45 V bandgap reference, and differential measurement using AVREFP/AVREFM pins - all detailed in Section 1.1 "A/D converter" and Table 1-1 pin configuration.
What serial communication interfaces are integrated into the R5F100JDAFA#10, and which support LIN bus protocol?
The R5F100JDAFA#10 includes up to 8 CSI/SPI channels, 4 UART channels, and 10 I²C channels. Among these, the UART modules explicitly support LIN 2.2 protocol (including break detection, sync field, and checksum generation) - specified in Section 1.1 "Serial interface" and confirmed by functional description of UART/LIN in the RL78/G13 overview.
What is the industrial temperature grade and package type of the R5F100JDAFA#10?
The R5F100JDAFA#10 is rated for industrial operation from –40°C to +85°C (denoted by 'D' in the part number suffix) and housed in a 52-pin LQFP package with 0.65 mm pitch (PLQP0052JA-A), as defined in Figure 1-1 and Table 1-1 of R01DS0131EJ0380 Rev.3.80.
R5F100JDAFA#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-LQFP
- Series:
- RL78/G13
- Packaging:
- Tray
- Product Status:
- Active
- 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:
R5F100JDAFA#10 FAQ
1.How can I place an order for R5F100JDAFA#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100JDAFA#10 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 R5F100JDAFA#10 reliable?
The price and inventory of R5F100JDAFA#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100JDAFA#10 is usually 5 days.
3.What payment methods are accepted for R5F100JDAFA#10?
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R5F100JDAFA#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100JDAFA#10 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 R5F100JDAFA#10?
For technical support, including R5F100JDAFA#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100JDAFA#10 requirements.
6.How does Aetrix verify that R5F100JDAFA#10 is sourced from the original manufacturer or authorized distributors?
All R5F100JDAFA#10 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 R5F100JDAFA#10 meets industry standards.
7.What is the process for return or replacement of R5F100JDAFA#10?
All R5F100JDAFA#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100JDAFA#10, 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 R5F100JDAFA#10 part is unused and in its original packaging.
Return procedure for R5F100JDAFA#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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