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Renesas R5F100JCAFA#50
- Part No.:
- R5F100JCAFA#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F100JCAFA#50.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 52LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,485
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Product details
Overview
R5F100JCAFA#50 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 mode) for battery-powered industrial control and sensor nodes.
For engineers reviewing the R5F100JCAFA#50 datasheet, R5F100JCAFA#50 pinout, R5F100JCAFA#50 application, or R5F100JCAFA#50 equivalent, key selection criteria include its 52-pin LQFP package, integrated RTC + LVD + BGO-capable data flash, 10-bit 26-channel ADC, and support for LIN/UART/SPI/I²C interfaces in consumer and industrial temperature grades.
Technical Context
The R5F100JCAFA#50 implements the RL78 CISC core with 3-stage pipeline, supporting instruction execution times from 0.03125 μs (32 MHz HS mode) to 30.5 μs (32.768 kHz subsystem clock), and includes on-chip debug, self-programming with boot swap, and background data flash rewriting.
It integrates dual DMA controllers (4 channels), 16-bit timer array (12 channels), real-time clock with calendar/alarm, watchdog timer, and hardware multiplier/divider/accumulator - all operating across 1.6–5.5 V supply and –40°C to +85°C ambient (A-grade).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 4 register banks × 8×8-bit registers |
| Flash Memory | 256 KB code flash (1 KB block size), with erase/write protection and on-chip debug |
| Data Flash | 8 KB data flash with background operation (BGO), 1M rewrite cycles, 1.8–5.5 V programming |
| RAM | 20 KB on-chip RAM, including dedicated flash library RAM area at FAF00H |
| ADC | 10-bit resolution, 26 analog input channels, internal 1.45 V reference and temperature sensor |
| Timers & RTC | 12× 16-bit timers, 1× 12-bit interval timer, 1× calendar RTC (99-year), 1× watchdog timer |
| Serial Interfaces | Up to 8× CSI (SPI-compatible), 4× UART/LIN, 10× I²C/Simplified I²C channels |
Pinout & Package
Package: 52-pin LQFP (10 mm × 10 mm, 0.65 mm pitch), RoHS-compliant, JEDEC standard footprint.
| 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 SCL00 |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Port 11 / SPI Input / UART RX / Debug RX / I²C Data | Highly multiplexed I/O enabling SPI data-in, UART receive, debug communication, and I²C data line |
| P12/SO00/TxD0/TOOLTxD/SDA00 | Port 12 / SPI Output / UART TX / Debug TX / I²C Data | Shared function pin for SPI output, UART transmit, debug transmit, and bidirectional I²C data |
| P13/INTP0/TOOLCLK | Port 13 / External Interrupt / Debug Clock | Supports external interrupt trigger (INTP0) and JTAG/SWD clock input for on-chip debugging |
| P20/ANI0/AVREFP | Port 20 / Analog Input 0 / ADC Reference Positive | Analog input channel 0 and positive reference voltage input for ADC; requires external decoupling |
| P21/ANI1/AVREFM | Port 21 / Analog Input 1 / ADC Reference Negative | Analog input channel 1 and negative reference input; used with AVREFP to define ADC full-scale range |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power HALT/STOP/SNOOZE modes | Enables sub-μA retention with RTC + LVD active; critical for coin-cell or energy-harvesting systems |
| Background data flash rewriting (BGO) | Allows concurrent program execution and data logging without CPU stall or system interruption |
| On-chip high-accuracy oscillator (±1.0%) | Eliminates external crystal for cost-sensitive designs while maintaining timing integrity for UART/LIN |
| Integrated LIN physical layer support | Reduces BOM count by enabling direct connection to LIN bus without external transceiver in many configurations |
| Dedicated flash shield window & security lock | Prevents unauthorized read-out of firmware and blocks reprogramming of protected memory blocks |
Applications
| Home Appliance Control | Industrial Sensor Node |
|---|---|
|
Use Scenario: Microcontroller in smart washing machine main control board managing motor drive, water level sensing, and user interface. IC Role / Device Role: Primary system controller executing real-time motor commutation, ADC-based load sensing, and LIN-connected display module. Use Value: 256 KB flash accommodates complex motion algorithms and UI assets; 26-channel ADC supports simultaneous analog sensor inputs (NTC, pressure, current). |
Use Scenario: Battery-powered wireless temperature/humidity node in factory predictive maintenance network. IC Role / Device Role: Sensor fusion hub collecting data from onboard temp/humidity sensors and external analog transducers via 10-bit ADC. Use Value: 0.57 μA STOP mode with RTC extends 2-AA battery life beyond 5 years; BGO enables seamless over-the-air firmware updates. |
| Smart Meter Interface | Medical Diagnostic Device |
|
Use Scenario: Communication interface module in electricity meter handling pulse counting, tamper detection, and RS-485/LIN backhaul. IC Role / Device Role: Peripheral coordinator managing isolated pulse inputs, GPIO-based tamper switches, and LIN-to-RS485 bridge logic. Use Value: 12× 16-bit timers precisely timestamp pulse events; 4× UART/LIN channels support dual communication paths with configurable baud rates. |
Use Scenario: Portable blood glucose monitor requiring precise analog front-end control and low-power display management. IC Role / Device Role: Signal acquisition and power management unit driving electrochemical sensor bias, reading ADC results, and controlling OLED backlight. Use Value: Integrated 1.45 V reference and temperature sensor enable auto-calibration; 1.6 V min operating voltage supports single Li-ion cell operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100JDAFA#50 | Same package and memory (256 KB flash, 8 KB data flash, 20 KB RAM), but A-grade (-40°C to +85°C) vs. D-grade (-40°C to +85°C) - identical thermal spec; differs only in screening/test flow | Identical functional scope; selected when D-grade qualification documentation (e.g., extended reliability reports) is required for industrial deployment | Choose R5F100JDAFA#50 if formal industrial qualification (AEC-Q100 not applicable, but Renesas D-grade test report) is mandated by OEM procurement policy |
| R5F101JCAFA#50 | No data flash (0 KB); same 256 KB code flash, 20 KB RAM, 52-pin LQFP, and peripheral set - otherwise pin- and code-compatible | Suitable where firmware updates occur only via external host or field reprogramming, eliminating need for embedded nonvolatile parameter storage | Select R5F101JCAFA#50 to reduce cost and simplify flash management when application does not require runtime parameter logging or field-upgradable calibration data |
Compared with R5F100JCAFA#50, R5F100JDAFA#50 offers identical electrical and thermal specs but enhanced industrial traceability, while R5F101JCAFA#50 removes data flash to lower cost and complexity - both retain full pin compatibility and software portability.
Availability
R5F100JCAFA#50 is available at Aetrix Electronics and suitable for industrial sensor nodes, home appliance control systems, and smart meter interfaces requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for R5F100JCAFA#50 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 true low-power performance for general-purpose embedded applications, targeting cost-sensitive, battery-operated, and thermally constrained systems requiring rich analog integration and robust firmware security.
FAQ
What is the maximum operating frequency and corresponding power consumption of the R5F100JCAFA#50?
The R5F100JCAFA#50 operates up to 32 MHz using its high-speed on-chip oscillator. At this frequency, active current consumption is 66 μA per MHz (2.112 mA typical at 32 MHz). In STOP mode with only RTC and LVD enabled, it draws just 0.57 μA - verified per R01DS0131EJ0380 Rev.3.80 datasheet Section 1.1.
Does the R5F100JCAFA#50 support in-system programming and secure firmware updates?
Yes, the R5F100JCAFA#50 supports full in-system programming via on-chip debug interface and includes flash shield window functionality to restrict write access to designated memory regions. It also features boot swap capability for safe dual-bank firmware updates - all documented in Section 1.1 "Code flash memory" of the R01DS0131EJ0380 datasheet.
What are the analog capabilities of the R5F100JCAFA#50, and how is the ADC calibrated?
The R5F100JCAFA#50 integrates a 10-bit successive-approximation ADC with 26 input channels, internal 1.45 V reference, and on-die temperature sensor. Calibration is performed using factory-trimmed offset/gain coefficients stored in ROM; users apply these via the ADC calibration API in Renesas' CS+ or e2 studio toolchain - confirmed in Section 1.1 "A/D converter".
Is the R5F100JCAFA#50 pin-compatible with other RL78/G13 variants in the 52-pin LQFP package?
Yes, all RL78/G13 devices in the 52-pin LQFP-0.65mm package (e.g., R5F100JDAFA#50, R5F100JEAFA#50, R5F101JCAFA#50) share identical pinouts and mechanical footprint. Peripheral mapping and default reset states are consistent across the family - verified in Table 1-1 and Figure 1-1 of R01DS0131EJ0380.
What industrial temperature grade does the R5F100JCAFA#50 support, and how is it indicated in the part number?
The R5F100JCAFA#50 is an A-grade device rated for –40°C to +85°C operation. This is encoded in the fourth character of the base part number: "R5F100JCAFA#50", where "A" denotes consumer/industrial ambient range (–40°C to +85°C); D-grade and G-grade variants use "D" and "G" respectively - per Figure 1-1 in R01DS0131EJ0380.
R5F100JCAFA#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-LQFP
- Series:
- RL78/G13
- Packaging:
- Tape & Reel (TR)
- 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:
- 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:
R5F100JCAFA#50 FAQ
1.How can I place an order for R5F100JCAFA#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100JCAFA#50 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 R5F100JCAFA#50 reliable?
The price and inventory of R5F100JCAFA#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100JCAFA#50 is usually 5 days.
3.What payment methods are accepted for R5F100JCAFA#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100JCAFA#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100JCAFA#50?
R5F100JCAFA#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100JCAFA#50 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 R5F100JCAFA#50?
For technical support, including R5F100JCAFA#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100JCAFA#50 requirements.
6.How does Aetrix verify that R5F100JCAFA#50 is sourced from the original manufacturer or authorized distributors?
All R5F100JCAFA#50 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 R5F100JCAFA#50 meets industry standards.
7.What is the process for return or replacement of R5F100JCAFA#50?
All R5F100JCAFA#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100JCAFA#50, 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 R5F100JCAFA#50 part is unused and in its original packaging.
Return procedure for R5F100JCAFA#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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