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Renesas R5F101JCAFA#10
- Part No.:
- R5F101JCAFA#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F101JCAFA#10.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 52LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,280
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Product details
Overview
R5F101JCAFA#10 from Renesas is a 52-pin LQFP-0.65mm microcontroller in the RL78/G13 family, featuring 64 KB flash memory, 4 KB data flash, 4 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 interface applications.
For engineers reviewing the R5F101JCAFA#10 datasheet, R5F101JCAFA#10 pinout, R5F101JCAFA#10 application, or R5F101JCAFA#10 equivalent, key selection criteria include its 52-pin LQFP package, absence of on-chip data flash (R5F101x series), -40°C to +85°C industrial temperature grade ('D' suffix), and support for UART/LIN, I²C, CSI, 16-bit timers, and 10-bit ADC with up to 26 channels.
Technical Context
The R5F101JCAFA#10 implements the RL78 CISC CPU core with 3-stage pipeline, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock), and operates across 1.6–5.5 V supply with integrated POR, LVD (14-level selectable), and multiple low-power modes (HALT, STOP, SNOOZE).
It integrates peripherals including up to 4 UART/LIN channels, 10 I²C/Simplified I²C channels, 8–16 CSI channels, 8–16 16-bit timers, real-time clock with calendar/alarm, watchdog timer, 10-bit ADC (26-channel max), and DMA controller with 2/4 channels - all optimized for deterministic real-time control in space-constrained embedded systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Flash Memory | 64 KB code flash (1 KB block size); no on-chip data flash (R5F101x series) |
| RAM | 4 KB on-chip RAM; supports BGO during data flash rewrite (not applicable here) |
| Operating Voltage | 1.6 V to 5.5 V - enables direct interface with 1.8 V, 2.5 V, 3.3 V, and 5 V peripherals |
| Power Consumption | 66 μA/MHz active current; 0.57 μA in STOP mode with RTC + LVD enabled |
| ADC Resolution | 10-bit SAR ADC with up to 26 analog inputs and internal 1.45 V reference |
| Temperature Range | -40°C to +85°C (industrial 'D' grade), qualified per AEC-Q100 not claimed |
Pinout & Package
Package: 52-pin LQFP, 10 mm × 10 mm, 0.65 mm pitch (PLQP0052JA-A / PLQP0052JD-B), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core and I/O rail decoupling; supports single-supply 1.6–5.5 V operation |
| P10/SCK00/SCL00 | Port 10 / SPI clock / I²C clock | Multi-function pin enabling hardware SPI master/slave or I²C bus communication without GPIO bit-banging |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Port 11 / SPI input / UART receive / debug RX / I²C data | Shared serial interface pin supporting concurrent protocol selection via peripheral enable registers |
| P20/ANI0/AVREFP | Analog input 0 / ADC reference positive | Configurable as primary ADC channel or precision AVREFP source; enables ratiometric sensor measurements |
| P21/ANI1/AVREFM | Analog input 1 / ADC reference negative | Provides differential reference capability; allows true differential ADC mode when paired with ANI0 |
| RESET | Active-low reset input | Accepts external reset signal; internally tied to on-chip POR and LVD reset generation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power HALT/STOP/SNOOZE modes | Enables sub-μA system sleep states while retaining RTC, LVD, and wake-up interrupt capability |
| On-chip high-accuracy oscillator | ±1.0% tolerance over 1.8–5.5 V and -20 to +85°C - eliminates need for external crystal in cost-sensitive designs |
| Hardware LIN bus support | UART peripheral includes automatic LIN break detection and sync field generation per LIN 2.x spec |
| Background operation (BGO) | Allows CPU to execute code from flash while data flash is being rewritten - not available on R5F101x (no data flash) |
| Multi-voltage I/O interface | N-ch open-drain and TTL-input configurable pins support safe interfacing with 1.8 V, 2.5 V, and 3 V logic domains |
| Real-time clock with calendar | 99-year calendar, alarm, and auto-correction - enables time-stamped logging without external RTC IC |
Applications
| Industrial Sensor Node | Smart HVAC Controller |
|---|---|
|
Use Scenario: Battery-powered wireless temperature/humidity/CO₂ sensor node with local display and BLE gateway interface. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling, sensor fusion, low-power scheduling, UART-to-BLE bridge, and RTC-based wake-up intervals. Use Value: 0.57 μA STOP mode extends 2xAA battery life beyond 5 years; 10-bit ADC with internal reference ensures stable ratiometric readings across voltage drop. |
Use Scenario: Wall-mounted HVAC zone controller with touch UI, fan speed regulation, and modulating valve control. IC Role / Device Role / Timing Role: Real-time actuator coordinator using PWM timers, LIN bus for communication with main HVAC unit, and UART for service port diagnostics. Use Value: Integrated LIN transceiver support reduces BOM count; 16-bit timers deliver precise 25 kHz fan PWM with <1% duty-cycle jitter. |
| Programmable Logic Relay | Energy Monitoring Module |
|
Use Scenario: DIN-rail mounted programmable relay with 8 digital inputs, 4 relay outputs, and Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Deterministic I/O sequencer executing ladder logic in <100 μs scan time; UART with automatic direction control for half-duplex RS-485. Use Value: 4 KB RAM accommodates runtime ladder logic variables; 64 KB flash stores firmware + user configuration; 16-bit interval timer ensures accurate 1 ms PLC scan timing. |
Use Scenario: DIN-rail energy metering module measuring voltage, current, and power factor for commercial building submeters. IC Role / Device Role / Timing Role: Signal acquisition engine synchronizing 10-bit ADC sampling to zero-crossing detection via timer-triggered conversion. Use Value: 26-channel ADC supports simultaneous voltage/current/temperature sensing; internal 1.45 V reference provides stable scaling independent of VDD drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100JCAFA#10 | Same 52-pin LQFP package and pinout; includes 4 KB data flash (R5F100x series) vs. none on R5F101JCAFA#10 | Required where background data flash writes (BGO) or EEPROM-like nonvolatile storage is needed | Select R5F100JCAFA#10 if firmware must store calibration data or logs without external memory |
| R5F101JDAFA#10 | Identical package, core, and memory sizes; differs only in flash content (48 KB vs. 64 KB) and part number suffix | Used when reduced code footprint allows smaller flash allocation and lower cost | Choose R5F101JDAFA#10 only if application fits within 48 KB flash and requires identical peripheral set |
Compared with R5F101JCAFA#10, R5F100JCAFA#10 adds data flash for field-updatable calibration but increases cost and complexity; R5F101JDAFA#10 offers 16 KB less flash at marginally lower price but constrains firmware scalability.
Availability
R5F101JCAFA#10 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart HVAC controllers, programmable logic relays, and energy monitoring modules requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for R5F101JCAFA#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 automotive, industrial, and IoT markets.
The RL78/G13 product line delivers ultra-low-power, cost-optimized 16-bit MCUs targeting battery-operated sensors, appliance controls, and industrial HMI - balancing performance, integration, and energy efficiency.
FAQ
Does R5F101JCAFA#10 include on-chip data flash memory?
No, R5F101JCAFA#10 does not include on-chip data flash memory. The '101' in the part number explicitly denotes the R5F101x series, which omits data flash - unlike the R5F100x series (e.g., R5F100JCAFA#10) that includes 4 KB data flash. This simplifies firmware updates but requires external nonvolatile storage for parameter retention.
What is the maximum operating frequency and corresponding current consumption of R5F101JCAFA#10?
R5F101JCAFA#10 operates up to 32 MHz using the high-speed on-chip oscillator, delivering 41 DMIPS performance. At this frequency, typical active current is 66 μA/MHz (≈2.1 mA total), measured at VDD = 3.3 V and TA = 25°C. Current scales linearly with frequency in active mode.
Which communication interfaces are supported by R5F101JCAFA#10, and how many channels are available?
R5F101JCAFA#10 supports UART/LIN (up to 4 channels), I²C/Simplified I²C (up to 10 channels), and CSI (SPI-compatible, up to 8 channels). All interfaces are hardware-peripheral based with independent clock sources and dedicated register sets - no software bit-banging required.
Is R5F101JCAFA#10 pin-compatible with other RL78/G13 devices in the same package?
Yes, R5F101JCAFA#10 is pin-compatible with all RL78/G13 52-pin LQFP variants (e.g., R5F100JCAFA#10, R5F101JDAFA#10) sharing the PLQP0052JA-A / PLQP0052JD-B footprint. Pin functions are identical across the family; differences are limited to memory size, data flash presence, and factory-programmed options.
What development tools and debug interfaces are supported for R5F101JCAFA#10?
R5F101JCAFA#10 supports Renesas E2 emulator Lite and E2 emulator via SWD (Single-Wire Debug) interface using the TOOLRxD/TOOLTxD pins (P11/P12). It is fully compatible with CS+ (CubeSuite+) IDE, e² studio, and GNU GCC toolchain with RL78-specific libraries and HAL drivers.
R5F101JCAFA#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:
- -
- 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:
R5F101JCAFA#10 FAQ
1.How can I place an order for R5F101JCAFA#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101JCAFA#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 R5F101JCAFA#10 reliable?
The price and inventory of R5F101JCAFA#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101JCAFA#10 is usually 5 days.
3.What payment methods are accepted for R5F101JCAFA#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101JCAFA#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101JCAFA#10?
R5F101JCAFA#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101JCAFA#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 R5F101JCAFA#10?
For technical support, including R5F101JCAFA#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101JCAFA#10 requirements.
6.How does Aetrix verify that R5F101JCAFA#10 is sourced from the original manufacturer or authorized distributors?
All R5F101JCAFA#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 R5F101JCAFA#10 meets industry standards.
7.What is the process for return or replacement of R5F101JCAFA#10?
All R5F101JCAFA#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101JCAFA#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 R5F101JCAFA#10 part is unused and in its original packaging.
Return procedure for R5F101JCAFA#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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