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Renesas R5F101JKAFA#30
- Part No.:
- R5F101JKAFA#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F101JKAFA#30.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 52LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:320
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Product details
Overview
R5F101JKAFA#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 R5F101JKAFA#30 datasheet, R5F101JKAFA#30 pinout, R5F101JKAFA#30 application, or R5F101JKAFA#30 equivalent, key selection criteria include its 52-pin LQFP package with 36 I/Os, integrated 10-bit 26-channel ADC, real-time clock with calendar/alarm, and support for LIN-bus UART - all within a -40°C to +85°C industrial temperature range.
Technical Context
The R5F101JKAFA#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 ultra-low-speed mode), and includes on-chip debug, self-programming flash with boot swap, and background operation during data flash rewriting.
It integrates dual serial interfaces (2–4 UART/LIN channels, 3–10 I²C/Simplified I²C channels), up to 16× 16-bit timers including a calendar-capable RTC, and an 8/10-bit A/D converter with internal 1.45 V reference and temperature sensor - all operating across 1.6–5.5 V supply and compliant with industrial ambient conditions (-40°C to +85°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC CPU with 3-stage pipeline and variable instruction timing (0.03125–30.5 μs) |
| Flash Memory | 64 KB code flash with 1 KB block size, security lock, and self-programming with boot swap |
| Data Flash | 4 KB data flash supporting background operation (BGO) and 1M write cycles (typ.) |
| RAM | 4 KB on-chip RAM, with dedicated flash library usage areas starting at FEF00H |
| ADC | 10-bit resolution A/D converter with 26 input channels, internal 1.45 V reference, and temperature sensor |
| Operating Voltage | 1.6 V to 5.5 V supply range, enabling direct interface with 1.8/2.5/3.0 V logic systems |
| Power Modes | HALT, STOP, and SNOOZE modes; 0.57 μA RTC+LVD only mode for extended battery life |
Pinout & Package
Package: 52-pin LQFP (10 × 10 mm, 0.65-mm pitch), RoHS-compliant, industrial-grade plastic body with exposed pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | Serial Clock Input/Output | Shared SPI clock (CSI) or I²C clock line; enables synchronous peripheral communication or two-wire bus interfacing |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Serial Data Input / UART RX / I²C Data | Multi-function pin supporting SPI master/slave data input, UART receive, debug tool interface, or I²C bidirectional data |
| P20/ANI0/AVREFP | Analog Input / Positive Reference | Primary analog channel 0 input and selectable positive reference for ADC voltage measurement accuracy |
| P21/ANI1/AVREFM | Analog Input / Negative Reference | Analog channel 1 input and selectable negative reference to enable differential ADC measurements |
| P147/ANI18 | Analog Input Channel 18 | Dedicated 10-bit ADC input supporting temperature sensing or external sensor signal acquisition |
| VDD, VSS | Power Supply / Ground | Primary 1.6–5.5 V power and ground connections; decoupling required per layout guidelines for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Low-Power Operation | 66 μA/MHz active current and 0.57 μA RTC+LVD retention mode extend battery life in portable and remote sensors |
| Integrated Real-Time Clock | Calendar function (99-year range), alarm, and clock correction eliminate need for external RTC IC and reduce BOM count |
| LIN-Bus UART Support | Hardware LIN protocol compliance enables direct connection to automotive body electronics and industrial sub-nodes without transceiver translation |
| Background Data Flash Rewrite | Code execution continues from flash while rewriting data flash - critical for firmware-over-the-air (FOTA) updates in field-deployed devices |
| Dual-Voltage Interface Capability | I/O pins support different potential interfaces (1.8/2.5/3.0 V), simplifying integration with mixed-voltage peripherals and legacy subsystems |
Applications
| Smart Sensor Node | Industrial HMI Panel |
|---|---|
Use Scenario: Battery-powered environmental sensor collecting temperature, humidity, and pressure data at 10-second intervals with local logging and periodic wireless upload. IC Role / Device Role / Timing Role: Main system controller executing sensor polling, ADC conversion, RTC-timestamped data storage in data flash, and low-power state management. Use Value: 0.57 μA RTC+LVD mode enables >5-year coin-cell operation; integrated 26-channel ADC eliminates external signal conditioning ICs. |
Use Scenario: Touch-enabled front-panel interface for PLC-controlled HVAC systems requiring button debounce, LED status indication, and serial communication with main controller. IC Role / Device Role / Timing Role: Dedicated UI processor handling capacitive touch scanning, buzzer feedback, real-time display updates, and UART-based command/response with host PLC. Use Value: On-chip key interrupt and clock output/buzzer controller reduce external components; 36 GPIOs support full keypad + LED matrix without expanders. |
| Home Appliance Control | Energy Metering Subsystem |
Use Scenario: Washing machine main control board managing motor drive sequencing, water valve actuation, temperature monitoring, and user interface feedback. IC Role / Device Role / Timing Role: Primary MCU coordinating PWM motor control via timer outputs, reading thermistor/NTC inputs via ADC, and driving relay/LED outputs. Use Value: 16× 16-bit timers provide precise motor phase timing and watchdog supervision; 1.6–5.5 V operation supports direct 3.3 V or 5 V rail use. |
Use Scenario: Secondary processing unit in smart electricity meter performing tamper detection, pulse counting, and secure data logging independent of main metrology ASIC. IC Role / Device Role / Timing Role: Secure co-processor validating meter events, storing encrypted logs in protected data flash, and communicating via isolated UART to host MCU. Use Value: Flash security lock prevents unauthorized access to stored tamper records; 1M-cycle data flash endurance ensures 10+ years of daily logging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100JKAFA#30 | Same package and pinout, but includes 4 KB data flash (vs. none in R5F101JKAFA#30); identical 64 KB code flash and 4 KB RAM | Required where persistent non-volatile parameter storage (e.g., calibration data, device ID) is needed alongside program code | Select R5F100JKAFA#30 when data flash functionality is mandatory; R5F101JKAFA#30 reduces cost where only code flash suffices |
| R5F101JKDFA#30 | Identical core specs and memory map, but uses D-grade (-40°C to +85°C) qualification instead of A-grade; same 52-pin LQFP-0.65mm package | Targeted at industrial environments requiring extended reliability validation under thermal stress | Choose R5F101JKDFA#30 for designs requiring formal industrial qualification; R5F101JKAFA#30 meets consumer-grade A-spec requirements |
Compared with R5F100JKAFA#30, the R5F101JKAFA#30 omits data flash to lower unit cost and simplify firmware update architecture, while retaining identical code flash, RAM, peripherals, and packaging - making it ideal for fixed-function embedded controllers where runtime parameter persistence is unnecessary. Against R5F101JKDFA#30, it trades formal industrial qualification for reduced procurement complexity in A-grade applications.
Availability
R5F101JKAFA#30 is available at Aetrix Electronics and suitable for industrial control panels, smart sensor nodes, and home appliance mainboards requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for R5F101JKAFA#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 automotive, industrial, and IoT markets.
The RL78/G13 product line delivers ultra-low-power, cost-optimized 16-bit MCUs targeting general-purpose embedded applications - emphasizing energy efficiency, integrated peripherals, and simplified development for resource-constrained designs.
FAQ
What is the maximum operating frequency of the R5F101JKAFA#30?
The R5F101JKAFA#30 supports up to 32 MHz operation using the high-speed on-chip oscillator with ±1.0% accuracy across 1.8–5.5 V and -20°C to +85°C. Its RL78 CPU core achieves 41 DMIPS at this frequency, with minimum instruction time of 0.03125 μs. The device also supports ultra-low-speed operation down to 32.768 kHz for RTC and low-power wake-up functions.
Does the R5F101JKAFA#30 include data flash memory?
No, the R5F101JKAFA#30 does not include data flash memory. Per Renesas part numbering convention, the "101" prefix indicates no data flash, distinguishing it from "100"-series variants like R5F100JKAFA#30 which integrate 4 KB of data flash. The R5F101JKAFA#30 provides 64 KB of code flash and 4 KB of RAM only.
What package type and pin count does the R5F101JKAFA#30 use?
The R5F101JKAFA#30 uses a 52-pin LQFP package with 0.65-mm pitch, measuring 10 mm × 10 mm. This is confirmed by the "FA" suffix in the part number (denoting LQFP-0.65mm) and "J" in the memory/feature code (indicating 52-pin variant), matching Renesas' RL78/G13 ordering matrix and mechanical drawings.
What is the operating temperature range for the R5F101JKAFA#30?
The R5F101JKAFA#30 is rated for an operating ambient temperature range of -40°C to +85°C, corresponding to Renesas' "A" grade qualification for consumer and general industrial applications. It is not rated for the extended -40°C to +105°C ("G" grade) or enhanced reliability "D" grade variants.
Which serial communication interfaces are supported by the R5F101JKAFA#30?
The R5F101JKAFA#30 supports multiple serial interfaces: up to 4 UART/LIN channels (with hardware LIN bus support), up to 10 I²C/Simplified I²C channels, and up to 8 CSI (SPI-compatible) channels. These are configurable per pin mapping and enable concurrent connectivity to displays, sensors, transceivers, and debug tools without external bridging logic.
R5F101JKAFA#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:
- 384KB (384K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 24K 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:
R5F101JKAFA#30 FAQ
1.How can I place an order for R5F101JKAFA#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101JKAFA#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 R5F101JKAFA#30 reliable?
The price and inventory of R5F101JKAFA#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101JKAFA#30 is usually 5 days.
3.What payment methods are accepted for R5F101JKAFA#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101JKAFA#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101JKAFA#30?
R5F101JKAFA#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101JKAFA#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 R5F101JKAFA#30?
For technical support, including R5F101JKAFA#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101JKAFA#30 requirements.
6.How does Aetrix verify that R5F101JKAFA#30 is sourced from the original manufacturer or authorized distributors?
All R5F101JKAFA#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 R5F101JKAFA#30 meets industry standards.
7.What is the process for return or replacement of R5F101JKAFA#30?
All R5F101JKAFA#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101JKAFA#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 R5F101JKAFA#30 part is unused and in its original packaging.
Return procedure for R5F101JKAFA#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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