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Renesas R5F101JCAFA#30
- Part No.:
- R5F101JCAFA#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F101JCAFA#30.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 52LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,280
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Product details
Overview
R5F101JCAFA#30 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#30 datasheet, R5F101JCAFA#30 pinout, R5F101JCAFA#30 application, or R5F101JCAFA#30 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 integrated peripherals including 10-bit ADC (26 channels), RTC, UART/LIN, I²C, and 16-bit timers.
Technical Context
The R5F101JCAFA#30 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). It integrates a 10-bit A/D converter with up to 26 input channels, real-time clock with calendar and alarm, and multiple serial interfaces including UART/LIN, I²C, and CSI (SPI-compatible).
Power management includes HALT, STOP, and SNOOZE low-power modes, on-chip POR and LVD (14-level selectable), and DMA controller with 2/4 channels. The device operates from 1.6 V to 5.5 V and supports background data flash rewriting via BGO functionality - though this variant lacks data flash per R5F101x designation.
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 data flash (R5F101x series) |
| RAM | 4 KB on-chip RAM for variables, stack, and peripheral buffers |
| Operating Voltage | 1.6 V to 5.5 V single supply - enables direct interfacing with 1.8 V, 2.5 V, 3.3 V, and 5 V logic |
| Power Consumption | 66 μA/MHz active current; 0.57 μA in STOP mode with RTC + LVD enabled |
| ADC Resolution | 10-bit A/D converter with 26 analog input channels and internal 1.45 V reference |
| Temperature Range | -40°C to +85°C (industrial-grade D-suffix part) |
Pinout & Package
Package: 52-pin LQFP (10 × 10 mm, 0.65-mm pitch), RoHS-compliant, tray packaging (#30 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | SPI Clock / I²C Clock | Shared pin for master clock output in CSI or SCL signal in I²C mode |
| P11/SI00/RxD0/TOOLRxD/SDA00 | SPI Input / UART RX / I²C Data | Multi-function pin supporting serial data input across three protocols |
| P12/SO00/TxD0/TOOLTxD | SPI Output / UART TX | Full-duplex serial transmit path; supports debug communication via TOOL interface |
| P20/ANI0/AVREFP | Analog Input 0 / ADC Reference Positive | Primary analog input channel; doubles as positive reference for ADC measurements |
| P21/ANI1/AVREFM | Analog Input 1 / ADC Reference Negative | Secondary analog input; serves as negative reference for differential ADC operation |
| P22/ANI2 | Analog Input 2 | Dedicated analog input channel usable with internal temperature sensor |
| P147/ANI18 | Analog Input 18 | High-numbered analog input accessible only on 52-pin and larger packages |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.57 μA retention current with RTC and LVD active - extends battery life in always-on sensing nodes |
| Multi-protocol serial interface | Hardware support for UART/LIN, I²C, and CSI (SPI-compatible) on shared pins - reduces external component count |
| On-chip RTC with calendar | 99-year calendar, alarm, and clock correction - eliminates need for external real-time clock IC |
| 10-bit ADC with 26 channels | Simultaneous sampling capability across multiple inputs - suitable for multi-sensor monitoring systems |
| Integrated voltage detector (LVD) | 14 programmable threshold levels - enables precise brown-out detection and system-safe shutdown |
| 32 MHz high-accuracy oscillator | +/-1.0% accuracy over -20°C to +85°C at VDD = 1.8–5.5 V - eliminates external crystal for many timing-critical applications |
Applications
| Industrial Sensor Node | Smart HVAC Controller |
|---|---|
Use Scenario: Battery-powered environmental sensor collecting temperature, humidity, and CO₂ data every 10 seconds for wireless transmission. IC Role / Device Role / Timing Role: Main system controller executing sensor polling, ADC conversion, RTC-timed wake-up, and UART-based data framing. Use Value: 0.57 μA STOP mode current and integrated RTC enable >5-year battery life using CR2032 cells without external timing components. |
Use Scenario: Wall-mounted HVAC control unit managing fan speed, valve position, and zone temperature feedback. IC Role / Device Role / Timing Role: Central MCU coordinating PWM fan control, analog sensor reads, LIN bus communication with actuators, and user interface updates. Use Value: 26-channel 10-bit ADC and LIN-capable UART allow direct connection to multiple analog sensors and automotive-grade actuators without level-shifting or protocol translation ICs. |
| Programmable Logic Relay | Energy Metering Subsystem |
Use Scenario: DIN-rail mounted relay module accepting digital inputs, executing configurable logic, and driving solid-state outputs. IC Role / Device Role / Timing Role: Real-time decision engine processing opto-isolated inputs, executing Boolean logic, and controlling MOSFET gate drivers with precise timing. Use Value: HALT/STOP mode transitions and 66 μA/MHz active power permit thermal-constrained enclosures while maintaining sub-millisecond I/O response. |
Use Scenario: Secondary microcontroller in a smart electricity meter handling pulse counting, tamper detection, and secure data logging. IC Role / Device Role / Timing Role: Dedicated metering co-processor managing isolated pulse inputs, LVD-triggered event logging, and RTC-stamped fault records. Use Value: On-chip LVD with 14 thresholds and non-volatile code flash enable reliable tamper-response logging even during brown-out conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100JCAFA#30 | Same 52-pin LQFP package and 64 KB flash, but includes 4 KB data flash and BGO support | Required where field firmware updates or parameter storage in data flash is needed | Select R5F100JCAFA#30 if non-volatile parameter retention or background flash programming is required |
| R5F101JDAFA#30 | Identical package and memory configuration, but with 48 KB flash instead of 64 KB | Suitable for cost-optimized designs with reduced firmware footprint and lower memory overhead | Choose R5F101JDAFA#30 when application code fits in 48 KB and BOM cost reduction is prioritized |
Compared with R5F101JCAFA#30, R5F100JCAFA#30 adds data flash for runtime parameter storage but increases cost and complexity, while R5F101JDAFA#30 reduces flash capacity by 16 KB - enabling smaller die size and lower unit price without sacrificing pin compatibility or peripheral set.
Availability
R5F101JCAFA#30 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart HVAC controllers, and programmable logic relays requiring stable component supply, long-term lifecycle support, and guaranteed traceability.
Supply support for R5F101JCAFA#30 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 infrastructure markets.
The RL78/G13 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and thermally constrained industrial control applications - balancing performance, integration, and energy efficiency.
FAQ
What is the flash memory configuration of the R5F101JCAFA#30?
The R5F101JCAFA#30 contains 64 KB of on-chip code flash memory and no data flash memory. This aligns with the R5F101x series designation indicating "data flash not provided." The flash is organized in 1 KB blocks and supports self-programming with boot swap and flash shield window functions. Code flash is used exclusively for program storage and firmware execution in the R5F101JCAFA#30.
Does the R5F101JCAFA#30 support real-time clock functionality?
Yes, the R5F101JCAFA#30 integrates a full-featured real-time clock (RTC) with calendar support for 99 years, alarm interrupt capability, and hardware clock correction. It operates independently in STOP mode with only 0.57 μA current draw when powered by VDD, enabling timekeeping during ultra-low-power sleep states without external components.
What is the operating temperature range for the R5F101JCAFA#30?
The R5F101JCAFA#30 is rated for industrial operation from -40°C to +85°C, indicated by the "D" suffix in its part number. This temperature grade ensures reliable performance in demanding environments such as factory automation, building controls, and outdoor sensor deployments where ambient conditions exceed commercial limits.
Which serial communication interfaces are available on the R5F101JCAFA#30?
The R5F101JCAFA#30 provides UART/LIN (2–4 channels), I²C/Simplified I²C (3–10 channels), and CSI (SPI-compatible serial interface, 2–8 channels). These interfaces share pins dynamically - for example, P10/P11/P12 support SCK/SI/SO for CSI, SCL/SDA for I²C, and TxD/RxD for UART - enabling flexible peripheral routing without additional glue logic.
How does the R5F101JCAFA#30 achieve ultra-low power consumption?
The R5F101JCAFA#30 achieves ultra-low power through multiple hardware features: HALT mode (core stopped, peripherals active), STOP mode (0.57 μA with RTC + LVD), and SNOOZE mode (peripheral-triggered wake-up without full CPU restart). Its 66 μA/MHz active current and 1.6–5.5 V wide supply range allow efficient operation across battery, energy-harvesting, and line-powered systems.
R5F101JCAFA#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-LQFP
- Series:
- RL78/G13
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- 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#30 FAQ
1.How can I place an order for R5F101JCAFA#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101JCAFA#30 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#30 reliable?
The price and inventory of R5F101JCAFA#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101JCAFA#30 is usually 5 days.
3.What payment methods are accepted for R5F101JCAFA#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101JCAFA#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101JCAFA#30?
R5F101JCAFA#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101JCAFA#30 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#30?
For technical support, including R5F101JCAFA#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101JCAFA#30 requirements.
6.How does Aetrix verify that R5F101JCAFA#30 is sourced from the original manufacturer or authorized distributors?
All R5F101JCAFA#30 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#30 meets industry standards.
7.What is the process for return or replacement of R5F101JCAFA#30?
All R5F101JCAFA#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101JCAFA#30, 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#30 part is unused and in its original packaging.
Return procedure for R5F101JCAFA#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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