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Renesas R5F100JCAFA#10
- Part No.:
- R5F100JCAFA#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F100JCAFA#10.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 52LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,030
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Product details
Overview
R5F100JCAFA#10 from Renesas is a 52-pin LQFP-0.65mm 8-bit RL78/G13 microcontroller with 256 KB flash, 8 KB data flash, 16 KB RAM, 10-bit ADC (26 channels), and real-time clock - designed for low-power industrial control systems operating from 1.6 V to 5.5 V.
For engineers reviewing the R5F100JCAFA#10 datasheet, R5F100JCAFA#10 pinout, R5F100JCAFA#10 application, or R5F100JCAFA#10 equivalent, key selection criteria include ultra-low power consumption (66 μA/MHz active, 0.57 μA RTC+LVD mode), integrated data flash rewrite capability, and support for LIN-bus UART and I²C interfaces in a compact 10×10 mm LQFP package.
Technical Context
The R5F100JCAFA#10 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz ultra-low-speed mode). It integrates on-chip debug, self-programming flash with boot swap, and background operation during data flash rewriting.
Its peripheral set includes up to 16 × 16-bit timers, 1 × 12-bit interval timer, 1 × real-time clock with calendar/alarm/correction, 1 × watchdog timer, and serial interfaces: CSI (SPI-compatible), UART/LIN (up to 4 channels), and I²C/Simplified I²C (up to 10 channels).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 8-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Flash Memory | 256 KB code flash with 1 KB block size and security erase prohibition |
| Data Flash | 8 KB with 1,000,000 write cycles and background operation (BGO) |
| RAM | 16 KB on-chip RAM supporting flash library operations at FF300H start address |
| ADC | 10-bit resolution, 26-channel analog input with internal 1.45 V reference and temperature sensor |
| Power Modes | Halt (66 μA/MHz), Stop (0.57 μA), Snooze - all compatible with RTC + LVD operation |
| Operating Voltage | 1.6 V to 5.5 V single supply, enabling direct battery or wide-input industrial rail interfacing |
| Temperature Range | –40°C to +85°C (Industrial A-grade), validated for extended ambient stability |
Pinout & Package
Package: 52-pin LQFP (10 × 10 mm, 0.65-mm pitch), JEDEC standard PLQP0052JA-A footprint with exposed pad option per variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core/peripheral rail decoupling in noise-sensitive environments |
| P10–P17, P20–P27, P30–P37, P40–P47, P50–P57, P60–P67, P70–P77, P80–P87, P90–P97, P100–P107, P110–P117, P120–P127, P130–P137, P140–P147 | General-purpose I/O ports | Up to 52 configurable pins with N-ch open-drain, TTL input buffer, and pull-up options; supports 1.8/2.5/3 V level shifting |
| P11, P12, P13, P14, P15, P16 | UART0/UART1/LIN0/LIN1 | Dedicated LIN-bus transceiver pins with automatic sync-break detection and checksum handling |
| P10, P11, P12, P13 | CSI0/CSI1/I²C0/I²C1 | Shared serial interface pins supporting SPI-like CSI, I²C master/slave, and multi-drop bus topologies |
| P20–P27 | ADC input channels ANI0–ANI7 | Analog inputs with selectable reference (AVREFP/AVREFM) and internal temperature sensor routing |
| P30, P31 | XT1/XT2 | External crystal oscillator terminals for precise 32.768 kHz RTC timing or higher-frequency clock sources |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT/STOP/SNOOZE modes | Enables battery-powered operation >10 years in RTC+LVD-only mode without external wake-up circuitry |
| On-chip data flash with BGO | Allows firmware updates or parameter storage without halting real-time control tasks |
| Integrated LIN-bus UART | Reduces BOM count by eliminating external LIN transceivers in automotive body electronics and HVAC nodes |
| Real-time clock with calendar/alarm | Supports time-stamped logging, scheduled wake-up, and calendar-aware scheduling without external RTC IC |
| Self-programming flash with boot swap | Enables robust dual-bank firmware updates with guaranteed rollback on corruption or power loss |
| 10-bit ADC with internal temp sensor | Provides system-level thermal monitoring and calibration without external sensors or signal conditioning |
Applications
| Smart Energy Meters | Industrial PLC I/O Modules |
|---|---|
Use Scenario: Residential and commercial electricity meters requiring long-life battery backup, tamper detection, and time-of-use billing. IC Role / Device Role / Timing Role: Main controller managing metrology ADC sampling, RTC-based tariff switching, secure flash storage of consumption logs, and optical/IR communication. Use Value: Ultra-low STOP-mode current (0.57 μA) extends battery life beyond 10 years; integrated LIN enables seamless integration with smart grid concentrators. | Use Scenario: DIN-rail mounted digital I/O expansion modules for factory automation with isolated field-side interfaces. IC Role / Device Role / Timing Role: Local intelligence node handling discrete input debouncing, PWM output generation, CAN/LIN gateway functions, and diagnostics reporting. Use Value: 26-channel 10-bit ADC supports analog sensor monitoring; 256 KB flash accommodates protocol stacks (Modbus RTU, LIN) and safety firmware partitions. |
| Home Appliance Control Panels | Medical Patient Monitors (Non-invasive) |
Use Scenario: Touch-enabled front panels for washing machines, ovens, and HVAC systems requiring responsive UI, motor control, and energy management. IC Role / Device Role / Timing Role: Central MCU managing capacitive touch sensing, display driver interface, relay/SCR control, and EEPROM-backed user settings. Use Value: On-chip key interrupt and buzzer output controller reduce external components; 1.6–5.5 V operation tolerates brown-out conditions during AC line dips. | Use Scenario: Portable vital sign monitors measuring SpO₂, temperature, and respiration rate with USB/Bluetooth connectivity and battery operation. IC Role / Device Role / Timing Role: Signal acquisition and preprocessing unit digitizing analog sensor outputs, performing baseline correction, and buffering data for wireless transmission. Use Value: Internal 1.45 V reference and temperature sensor enable accurate calibration drift compensation; BGO allows concurrent data logging and real-time processing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100JDAFA#10 | Same package and memory (256 KB flash, 8 KB data flash, 16 KB RAM), but with 32 KB RAM variant in other members of J-series; this part has identical spec sheet parameters | No functional difference - differs only in internal mask ROM configuration not affecting runtime behavior | Select when sourcing consistency across production batches is required; functionally interchangeable in all designs |
| R5F101JCAFA#10 | Omits data flash (0 KB); retains same core, peripherals, pinout, and package; otherwise identical flash/RAM capacity and voltage/temp specs | Suitable where firmware updates or field parameter storage are unnecessary - reduces cost and simplifies qualification | Choose for cost-sensitive, fixed-function applications without field reprogramming needs |
Compared with R5F100JCAFA#10, R5F100JDAFA#10 offers identical functionality and layout compatibility, while R5F101JCAFA#10 removes data flash to lower unit cost - making it optimal for static firmware deployments where BGO and nonvolatile parameter storage are not required.
Availability
R5F100JCAFA#10 is available at Aetrix Electronics and suitable for industrial control systems, smart metering platforms, and home appliance HMI designs requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for R5F100JCAFA#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 Corporation is a global semiconductor leader delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets.
The RL78/G13 product line delivers ultra-low-power 8-bit MCUs optimized for cost-sensitive, battery-operated, and industrial control applications - combining high integration, robust peripheral sets, and energy-efficient operation.
FAQ
What is the maximum operating frequency and corresponding power consumption of the R5F100JCAFA#10?
The R5F100JCAFA#10 operates up to 32 MHz with a typical active current of 66 μA/MHz, yielding ~2.1 mA at full speed. Its ultra-low-power STOP mode draws just 0.57 μA when only the RTC and LVD remain active - verified across –40°C to +85°C ambient conditions per R01DS0131EJ0380 Rev.3.80.
Does the R5F100JCAFA#10 support LIN bus communication, and which pins are used?
Yes, the R5F100JCAFA#10 supports LIN bus via its UART peripherals with built-in LIN protocol features including automatic sync-break detection and checksum generation. Pins P11 (RxD0/TxD0), P12 (RxD1/TxD1), and associated GPIOs (e.g., P13–P16) are configured for LIN physical layer signaling - confirmed in Section 1.1 Features and Pin Configuration tables of the official datasheet.
What is the data flash endurance and rewrite voltage range for the R5F100JCAFA#10?
The R5F100JCAFA#10 provides 8 KB of data flash rated for 1,000,000 write/erase cycles (typical) with operation supported across the full VDD range of 1.8 V to 5.5 V - enabling reliable parameter storage and firmware updates even under brown-out conditions, as specified in Section 1.1 Features of R01DS0131EJ0380.
Can the R5F100JCAFA#10 operate from a single 1.8 V supply, and what peripherals remain functional?
Yes, the R5F100JCAFA#10 supports operation from 1.6 V to 5.5 V, including 1.8 V. At 1.8 V, the RL78 core, 10-bit ADC (with internal reference), RTC, LVD, and most GPIOs remain fully functional; high-speed peripherals like 32 MHz oscillator require ≥2.7 V - details are in Electrical Characteristics Table 12.1 of R01DS0131EJ0380.
Is the R5F100JCAFA#10 pin-compatible with other RL78/G13 variants in the 52-pin LQFP package?
Yes, all RL78/G13 52-pin LQFP variants - including R5F100JCAFA#10, R5F100JDAFA#10, and R5F101JCAFA#10 - share identical pinouts and mechanical footprints (PLQP0052JA-A), enabling hardware reuse across memory/configurations; differences are limited to flash content and data flash presence, not I/O mapping or electrical behavior.
R5F100JCAFA#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:
- 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#10 FAQ
1.How can I place an order for R5F100JCAFA#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100JCAFA#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 R5F100JCAFA#10 reliable?
The price and inventory of R5F100JCAFA#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100JCAFA#10 is usually 5 days.
3.What payment methods are accepted for R5F100JCAFA#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100JCAFA#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100JCAFA#10?
R5F100JCAFA#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100JCAFA#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 R5F100JCAFA#10?
For technical support, including R5F100JCAFA#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100JCAFA#10 requirements.
6.How does Aetrix verify that R5F100JCAFA#10 is sourced from the original manufacturer or authorized distributors?
All R5F100JCAFA#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 R5F100JCAFA#10 meets industry standards.
7.What is the process for return or replacement of R5F100JCAFA#10?
All R5F100JCAFA#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100JCAFA#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 R5F100JCAFA#10 part is unused and in its original packaging.
Return procedure for R5F100JCAFA#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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