My Inquiry
My Account
Renesas R5F101JKAFA#V0
- Part No.:
- R5F101JKAFA#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F101JKAFA#V0.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 52LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,864
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F101JKAFA#V0 from Renesas is a 52-pin LQFP-0.65mm, 16-bit RL78/G13 microcontroller with 256 KB flash, 8 KB data flash, 20 KB RAM, and ultra-low-power operation (66 μA/MHz active, 0.57 μA RTC+LVD mode), designed for battery-powered industrial control and sensor interface applications.
For engineers reviewing the R5F101JKAFA#V0 datasheet, R5F101JKAFA#V0 pinout, R5F101JKAFA#V0 application, or R5F101JKAFA#V0 equivalent, key selection criteria include its 52-pin LQFP package, 256 KB code flash with self-programming, integrated 10-bit ADC (26 channels), real-time clock with calendar, and support for UART/LIN, I²C, and CSI serial interfaces in industrial temperature range (−40°C to +85°C).
Technical Context
The R5F101JKAFA#V0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock), and features a 1 MB address space with four banks of 8-bit general-purpose registers.
It integrates a 12-bit interval timer, 16-bit timers (12 channels), watchdog timer with dedicated low-speed oscillator, and on-chip peripherals including DMA (4 channels), multiplier/divider/MAC unit, and voltage detector with 14-level LVD interrupt/reset selection - all optimized for deterministic real-time control in resource-constrained embedded systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space |
| Flash Memory | 256 KB code flash with 1 KB block size, self-programming and boot swap support |
| Data Flash | 8 KB data flash with background operation (BGO), 1M rewrite cycles (TYP) |
| RAM | 20 KB on-chip RAM, including dedicated areas for flash library use (start address FAF00H) |
| ADC | 10-bit resolution A/D converter with up to 26 analog inputs and internal 1.45 V reference |
| Operating Voltage | 1.6 V to 5.5 V single supply, enabling direct Li-ion or multi-cell battery interfacing |
| Temperature Range | −40°C to +85°C (Industrial grade D-application marking) |
Pinout & Package
Package: 52-pin LQFP (10 × 10 mm, 0.65-mm pitch), RoHS-compliant, tray packaging (#V0 suffix). Pin count and layout conform to PLQP0052JA-A mechanical specification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | Serial Clock Input/Output | Shared SPI clock (CSI) and I²C clock line; supports master/slave modes with programmable polarity and phase |
| P11/SI00/RxD0/TOOLRxD/SDA00 | Serial Data Input / UART RX / I²C Data | Multi-function pin enabling SPI input, UART receive, debug tool interface, and I²C bidirectional data |
| P20/ANI0/AVREFP | Analog Input Channel 0 / ADC Reference Positive | Primary analog input with selectable AVREFP function; enables precise ratiometric measurements using external reference |
| P21/ANI1/AVREFM | Analog Input Channel 1 / ADC Reference Negative | Second analog input with AVREFM capability; supports differential ADC measurements when paired with P20 |
| P147/ANI18 | Analog Input Channel 18 | Dedicated analog input supporting up to 26-channel scan; routed to internal 10-bit ADC with sample-and-hold |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT/STOP/SNOOZE modes | Enables sub-μA system sleep states while retaining RTC and LVD functionality for long-life battery operation |
| On-chip high-accuracy oscillator | ±1.0% tolerance over −20°C to +85°C at 32 MHz, eliminating need for external crystal in cost-sensitive designs |
| Real-time clock with calendar | 99-year calendar, alarm, and clock correction - supports time-stamped logging without external RTC IC |
| Hardware CRC generator | Accelerates firmware integrity checks and secure boot verification in safety-critical firmware updates |
| On-chip BCD correction circuit | Reduces CPU overhead in display-driven applications (e.g., digital panel meters, HVAC controllers) |
Applications
| Smart Sensor Node | Industrial HMI Controller |
|---|---|
|
Use Scenario: Battery-powered environmental sensor node measuring temperature, humidity, and CO₂ with wireless telemetry. IC Role / Device Role / Timing Role: Main system controller executing sensor acquisition, calibration, data preprocessing, and low-power scheduling. Use Value: 0.57 μA STOP mode with RTC wake-up enables multi-year battery life; integrated 10-bit ADC and 26-channel analog front-end eliminate external signal conditioning ICs. |
Use Scenario: Touch-based operator interface for PLC-connected machinery with LED indicators and buzzer feedback. IC Role / Device Role / Timing Role: Human-machine interface processor managing touch scanning, display refresh, audio output, and serial communication to host controller. Use Value: On-chip buzzer output controller and key interrupt function reduce external components; 20 KB RAM supports GUI frame buffers and event queues. |
| Energy Metering Subsystem | Motor Control Monitor |
|
Use Scenario: Secondary metering module in smart electricity meter performing tamper detection, load profiling, and secure data storage. IC Role / Device Role / Timing Role: Secure data logger and anomaly detector interfacing with main metering SoC via UART/LIN. Use Value: 8 KB data flash with 1M write endurance stores 30+ days of minute-level consumption logs; hardware CRC ensures firmware and log integrity. |
Use Scenario: Embedded monitor for BLDC motor drive detecting overcurrent, thermal faults, and commutation timing errors. IC Role / Device Role / Timing Role: Real-time fault supervisor sampling current sense signals and communicating status via UART to motor driver MCU. Use Value: 12-channel 16-bit timers enable precise PWM edge capture and dead-time monitoring; 66 μA/MHz active current minimizes thermal impact in enclosed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100JKAFA#V0 | Same package and pinout, but includes 8 KB data flash (R5F101JKAFA#V0 has no data flash) | Preferred where field firmware updates or parameter storage require persistent nonvolatile memory beyond code flash | Select R5F100JKAFA#V0 if data flash usage is required; otherwise R5F101JKAFA#V0 reduces cost and simplifies flash management |
| R5F101JKDFA#V0 | Identical core and memory configuration, but in 52-pin LQFP-0.65mm with different packaging (tape-and-reel #DFA vs tray #V0) | Same electrical and functional behavior; differs only in logistics handling for automated assembly | Choose R5F101JKDFA#V0 for SMT reel-fed production; R5F101JKAFA#V0 is optimal for prototyping and low-volume manual assembly |
Compared with R5F100JKAFA#V0, the R5F101JKAFA#V0 eliminates data flash to lower cost and simplify firmware design where parameter persistence isn't needed; versus R5F101JKDFA#V0, it provides tray packaging for easier evaluation and small-batch deployment without reel-handling infrastructure.
Availability
R5F101JKAFA#V0 is available at Aetrix Electronics and suitable for industrial HMI, smart sensor nodes, energy metering subsystems, and motor control monitors requiring stable component supply across extended product lifecycles.
Supply support for R5F101JKAFA#V0 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 family delivers ultra-low-power 16-bit MCUs targeting cost-sensitive, battery-operated, and industrial control applications requiring high integration and long-term reliability.
FAQ
What is the flash memory configuration of the R5F101JKAFA#V0?
The R5F101JKAFA#V0 contains 256 KB of code flash memory with 1 KB erase blocks and no data flash. It supports self-programming with boot swap and flash shield window functions, enabling secure firmware updates without external programming hardware. The flash library uses RAM starting at address FAF00H during rewriting operations.
Does the R5F101JKAFA#V0 support hardware debugging?
Yes, the R5F101JKAFA#V0 includes an on-chip debug function compatible with Renesas E2 emulator and CS+ IDE. It supports breakpoints, watchpoints, and real-time variable monitoring via the single-wire debug interface (SWD), eliminating the need for dedicated JTAG pins and preserving I/O resources for application use.
What serial communication interfaces are available on the R5F101JKAFA#V0?
The R5F101JKAFA#V0 integrates multiple serial interfaces: up to 8 CSI (SPI-compatible) channels, 4 UART/LIN channels, and up to 10 I²C/Simplified I²C channels. These are configurable per pin, with shared functions like P10/SCK00/SCL00 and P11/SI00/RxD0/SDA00 enabling flexible peripheral routing in constrained PCB layouts.
How does the R5F101JKAFA#V0 achieve ultra-low power consumption?
The R5F101JKAFA#V0 achieves 66 μA/MHz active current and 0.57 μA STOP mode via RL78's scalable clock system, multiple low-power modes (HALT, STOP, SNOOZE), and segmented peripheral clock gating. Its 1.6–5.5 V operating range allows direct connection to primary batteries or energy harvesters without external regulators.
Is the R5F101JKAFA#V0 pin-compatible with other RL78/G13 variants?
The R5F101JKAFA#V0 is pin-compatible with all 52-pin LQFP-0.65mm RL78/G13 variants (e.g., R5F100JKAFA#V0, R5F101JKDFA#V0), sharing identical mechanical footprint and signal mapping. However, functional differences exist - notably, R5F101JKAFA#V0 omits data flash, and R5F101JKDFA#V0 uses tape-and-reel packaging instead of tray.
R5F101JKAFA#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-LQFP
- Series:
- RL78/G13
- Packaging:
- Tray
- Product Status:
- Discontinued at Digi-Key
- 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#V0 FAQ
1.How can I place an order for R5F101JKAFA#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F101JKAFA#V0 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#V0 reliable?
The price and inventory of R5F101JKAFA#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F101JKAFA#V0 is usually 5 days.
3.What payment methods are accepted for R5F101JKAFA#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F101JKAFA#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F101JKAFA#V0?
R5F101JKAFA#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F101JKAFA#V0 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#V0?
For technical support, including R5F101JKAFA#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F101JKAFA#V0 requirements.
6.How does Aetrix verify that R5F101JKAFA#V0 is sourced from the original manufacturer or authorized distributors?
All R5F101JKAFA#V0 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#V0 meets industry standards.
7.What is the process for return or replacement of R5F101JKAFA#V0?
All R5F101JKAFA#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F101JKAFA#V0, 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#V0 part is unused and in its original packaging.
Return procedure for R5F101JKAFA#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F101JKAFA#V0 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
