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Renesas R5F104JCAFA#10
- Part No.:
- R5F104JCAFA#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F104JCAFA#10.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 52LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,010
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Product details
Overview
R5F104JCAFA#10 from Renesas is a 52-pin LQFP-0.65mm-pitch 16-bit RL78/G14 microcontroller with 96 KB flash, 12 KB RAM, and 8 KB data flash, operating from 1.6–5.5 V at -40°C to +85°C (industrial grade D). It delivers 44 DMIPS at 32 MHz, features a 10-bit ADC (16 channels), RTC, UART/SPI/I²C interfaces, and ultra-low-power HALT/STOP/SNOOZE modes - deployed in industrial sensor nodes and programmable logic controllers.
For engineers reviewing the R5F104JCAFA#10 datasheet, R5F104JCAFA#10 pinout, R5F104JCAFA#10 application, or R5F104JCAFA#10 equivalent, key selection criteria include its 52-pin LQFP package, 96 KB code flash with self-programming support, 12 KB RAM allocation, integrated RTC with calendar function, and compatibility with Renesas' CS+ and e² studio toolchains for low-power embedded firmware development.
Technical Context
The R5F104JCAFA#10 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.03125 µs min @ 32 MHz to 30.5 µs @ 32.768 kHz). It integrates a Data Transfer Controller (DTC) supporting normal, repeat, and block transfer modes triggered by 19–26 event sources via the Event Link Controller (ELC).
Its peripheral set includes up to 12× 16-bit timers (TAU, RJ, RD, RG), 1× 12-bit interval timer, 1× real-time clock with alarm/calendar, 1× watchdog timer, and serial interfaces: 3–4 UART/LIN channels, 3–8 CSI (SPI-compatible) channels, and 4–10 I²C/simplified I²C channels - all accessible through flexible I/O redirection registers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC CPU with 3-stage pipeline and multiply/divide/accumulate instructions |
| Max Operating Frequency | 32 MHz delivering 44 DMIPS - enables deterministic real-time control in motor drives and PLCs |
| Memory Configuration | 96 KB code flash (1 KB blocks), 12 KB RAM, 8 KB data flash with background operation (BGO) |
| Power Consumption | 66 μA/MHz active; 0.60 μA in STOP mode with RTC + LVD - supports battery-backed operation >10 years |
| Analog Peripherals | 10-bit ADC (16 input channels, internal 1.45 V reference, temperature sensor), 8-bit DAC (2 channels, 0–VDD output) |
| Operating Voltage & Temp | 1.6–5.5 V supply; -40°C to +85°C ambient (industrial D-grade qualification) |
| Package & Pin Count | 52-pin LQFP, 0.65 mm pitch, 10 × 10 mm body - compatible with standard reflow and AOI inspection |
Pinout & Package
Package: 52-pin LQFP (10 × 10 mm, 0.65 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART transmit; 16-bit timer input; trace clock A - used for debug communication and time-critical signal capture |
| P01 | RxD1 / TO00 / TRGCLKB | Primary UART receive; timer output; trace clock B - pairs with P00 for full-duplex serial and synchronized timing |
| P10–P17 | SPI/I²C/UART/ADC multiplexed I/O | Configurable serial interface pins (SCK11, SI11, SO11, SDA11, etc.) - enable flexible peripheral mapping without PCB redesign |
| P30 | INTP3 / RTC1HZ / SCK00 / SCL00 | RTC 1 Hz output + I²C master clock - provides precise timekeeping and sensor bus control from single pin |
| P60–P61 | SCLA0 / SDAA0 | Dedicated I²C bus pins with internal pull-up capability - simplify external sensor connectivity (e.g., temperature, humidity ICs) |
| RESET | Active-low reset input | Asynchronous reset with internal POR and LVD - ensures reliable startup under brown-out conditions |
| VDD / VSS | Power supply / ground | Separate analog/digital power domains supported; REGC capacitor required for internal regulator stability |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Low-Power Modes | HALT (CPU stop, peripherals active), STOP (all clocks off except RTC/LVD), SNOOZE (selective peripheral wake-up) - extends battery life in portable industrial tools |
| Self-Programming Flash | Boot swapping and flash shield window enable secure firmware updates in-field without external programmer |
| Background Data Flash Rewrite | BGO allows concurrent code execution and 1M-cycle endurance data logging - critical for predictive maintenance edge nodes |
| Flexible Peripheral Routing | Peripheral I/O redirection registers (PIOR0/1) remap UART, SPI, timer, and ADC functions to alternate pins - reduces layout constraints |
| Integrated Safety Functions | On-chip voltage detector (14-level LVD), watchdog timer with dedicated low-speed oscillator - meets IEC 61508 SIL-2 functional safety requirements |
| Dual-Voltage I/O | N-ch open-drain I/O supports 1.8/2.5/3.3 V logic interfacing - simplifies integration with mixed-voltage sensor subsystems |
Applications
| Industrial Sensor Node | Programmable Logic Controller (PLC) I/O Module |
|---|---|
Use Scenario: Battery-powered wireless temperature/humidity node with LoRaWAN backhaul in factory environments. IC Role / Device Role / Timing Role: Main controller executing sensor acquisition, data preprocessing, RTC-scheduled transmission, and low-power state management. Use Value: 0.60 μA STOP mode + RTC enables multi-year battery life; 10-bit ADC with internal reference eliminates external precision references. |
Use Scenario: DIN-rail mounted digital I/O expansion module with isolated inputs/outputs and Modbus RTU communication. IC Role / Device Role / Timing Role: Central MCU handling GPIO scanning, pulse-width modulation for analog outputs, UART-based Modbus protocol stack, and watchdog supervision. Use Value: 44 DMIPS and 12 KB RAM support real-time I/O response <1 ms; multiple UART channels enable simultaneous host and fieldbus communication. |
| Smart Energy Meter Interface | Motor Control Feedback Unit |
Use Scenario: Sub-metering unit monitoring HVAC power consumption with kWh calculation and tamper detection. IC Role / Device Role / Timing Role: Energy metering co-processor acquiring current/voltage samples via ADC, computing RMS values, and managing secure data flash storage. Use Value: Background data flash rewrite (BGO) enables continuous energy logging during firmware updates; 8 KB data flash sustains >10 years of 15-minute interval records. |
Use Scenario: Brushless DC motor feedback board measuring rotor position (Hall sensors), phase current (shunt + ADC), and thermal status. IC Role / Device Role / Timing Role: Real-time motor control companion MCU generating PWM triggers, sampling analog feedback, and communicating fault status to main controller. Use Value: 16-bit TAU timers with dead-time insertion support precise 3-phase gate drive; 16-channel ADC enables simultaneous current/temperature/Hall sampling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104JDAFA#10 | Same package and pinout; 128 KB flash, 16 KB RAM, 8 KB data flash - higher memory headroom | Preferred for firmware with large protocol stacks (e.g., CANopen, EtherCAT) or extended data logging | Select when future firmware growth or dual-application partitioning (e.g., secure boot + application) is required |
| R5F104JEAFA#10 | Same package and pinout; 48 KB flash, 5.5 KB RAM, 4 KB data flash - reduced memory footprint | Targeted at cost-sensitive, fixed-function devices with minimal feature set (e.g., simple relay controllers) | Choose for high-volume production where BOM cost reduction outweighs memory scalability needs |
Compared with R5F104JCAFA#10, R5F104JDAFA#10 offers scalable firmware capacity without layout change, while R5F104JEAFA#10 reduces silicon cost and power in static-function deployments - enabling tiered product families from a single PCB design.
Availability
R5F104JCAFA#10 is available at Aetrix Electronics and suitable for industrial sensor nodes, programmable logic controller I/O modules, and smart energy meter interfaces requiring stable component supply across multi-year production cycles.
Supply support for R5F104JCAFA#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, and power solutions for industrial, automotive, and IoT markets.
The RL78/G14 family targets cost-sensitive, ultra-low-power general-purpose embedded applications - balancing performance, energy efficiency, and peripheral richness for industrial automation and sensing.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F104JCAFA#10?
The R5F104JCAFA#10 operates at up to 32 MHz and delivers 44 DMIPS (Dhrystone MIPS) under benchmark conditions. This performance level supports real-time control loops in motor drives and fast-response industrial I/O processing, validated per Renesas' RL78/G14 datasheet Rev. 3.70.
Does the R5F104JCAFA#10 support background data flash rewriting while executing application code?
Yes, the R5F104JCAFA#10 supports Background Operation (BGO) for data flash, allowing instruction execution from program memory during data flash rewrite. This enables uninterrupted logging or parameter updates - critical for R5F104JCAFA#10 deployments in predictive maintenance gateways.
What is the ADC resolution, channel count, and reference voltage option on the R5F104JCAFA#10?
The R5F104JCAFA#10 integrates a 10-bit successive-approximation ADC with 16 analog input channels and selectable reference: external (AVREFP/AVREFM) or internal 1.45 V. This configuration eliminates need for external voltage references in most industrial sensor interfaces using the R5F104JCAFA#10.
Is the R5F104JCAFA#10 qualified for industrial temperature range, and what is its operating voltage window?
Yes, the R5F104JCAFA#10 is rated for -40°C to +85°C (industrial D-grade) and operates from 1.6 V to 5.5 V. Its wide voltage range supports direct battery operation (e.g., 2× LiSOCl₂) and compatibility with legacy 5 V industrial buses - confirmed in R5F104JCAFA#10's official ordering information table.
Which development tools are officially supported for firmware development on the R5F104JCAFA#10?
Renesas officially supports CS+ (formerly CubeSuite+) and e² studio IDEs for R5F104JCAFA#10 development, with compiler toolchains including CC-RL and GCC-RL78. Debugging is enabled via on-chip FINE v2 interface using E2 emulator Lite or E2 emulator, as documented in the R5F104JCAFA#10 hardware manual.
R5F104JCAFA#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-LQFP
- Series:
- RL78/G14
- 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:
- 4K 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:
R5F104JCAFA#10 FAQ
1.How can I place an order for R5F104JCAFA#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104JCAFA#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 R5F104JCAFA#10 reliable?
The price and inventory of R5F104JCAFA#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104JCAFA#10 is usually 5 days.
3.What payment methods are accepted for R5F104JCAFA#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104JCAFA#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104JCAFA#10?
R5F104JCAFA#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104JCAFA#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 R5F104JCAFA#10?
For technical support, including R5F104JCAFA#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104JCAFA#10 requirements.
6.How does Aetrix verify that R5F104JCAFA#10 is sourced from the original manufacturer or authorized distributors?
All R5F104JCAFA#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 R5F104JCAFA#10 meets industry standards.
7.What is the process for return or replacement of R5F104JCAFA#10?
All R5F104JCAFA#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104JCAFA#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 R5F104JCAFA#10 part is unused and in its original packaging.
Return procedure for R5F104JCAFA#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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