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Renesas R5F104LCAFA#70
- Part No.:
- R5F104LCAFA#70
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F104LCAFA#70.pdf
- Description:
- 16-BIT GENERAL MCU RL78/G14 32K
- Quantity:
- Payment:
- Shipping:
Inventory:1,726
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Product details
Overview
R5F104LCAFA#70 from Renesas is a 64-pin LQFP-0.65mm 16-bit RL78/G14 microcontroller with 192 KB flash, 20 KB RAM, and 8 KB data flash, operating from 1.6–5.5 V at -40°C to +85°C. It delivers 44 DMIPS at 32 MHz, features ultra-low power consumption (66 μA/MHz active, 0.60 μA RTC+LVD), and integrates UART, I²C, SPI, 12-channel 10-bit ADC, RTC, and hardware DTC/ELC for embedded control in industrial and consumer systems.
For engineers reviewing the R5F104LCAFA#70 datasheet, R5F104LCAFA#70 pinout, R5F104LCAFA#70 application, or R5F104LCAFA#70 equivalent, key selection criteria include its 64-pin LQFP package, 192 KB code flash with self-programming support, dual-voltage I/O (1.8/2.5/3.0 V interface capability), and integrated event-link controller for deterministic peripheral coordination without CPU overhead.
Technical Context
The R5F104LCAFA#70 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.03125 µs @32 MHz to 30.5 µs @32.768 kHz). It supports multiply/divide/accumulate instructions and 1 MB address space with four register banks.
Its peripheral set includes Timer Array Unit (TAU) with up to 8 channels, 12-bit interval timer, calendar RTC with alarm/correction, watchdog timer, and 19–26 event signals routed via Event Link Controller (ELC) to eliminate software latency in time-critical responses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Max Clock Speed | 32 MHz - delivers 44 DMIPS for real-time control loop execution |
| Flash Memory | 192 KB code flash with 1 KB block erase, security lock, and boot swapping |
| Data Flash | 8 KB background operation (BGO) flash supporting 1M rewrite cycles at VDD = 1.8–5.5 V |
| RAM | 20 KB on-chip SRAM, including dedicated areas for flash library operation (start address F9F00H) |
| ADC | 10-bit resolution, 16-channel analog input with internal 1.45 V reference and temperature sensor |
| Power Modes | HALT, STOP, SNOOZE - enables 0.60 μA RTC+LVD operation for battery-backed applications |
Pinout & Package
Package: 64-pin LQFP (12 × 12 mm, 0.65 mm pitch), RoHS-compliant, industrial-grade (-40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P01 | GPIO / Analog Input / UART TX/RX | Primary serial interface pins for UART1 with TRGCLKA/B clock generation and analog input (ANI17/ANI16) |
| P10–P15 | Multi-function Serial Interface | Support CSI (SPI-like), I²C, and UART across 3–4 channels with flexible pin assignment via PIOR registers |
| P16–P17 | Timer I/O / UART Alternate | TI01/TO01 and TI02/TO02 with interrupt capability; also serve as RxD0/TxD0 alternate functions |
| P30–P31 | RTC / Timer / Buzzer Output | INTP3 for RTC1HZ output; TI03/TO03 with PCLBUZ0 for programmable tone generation |
| P60–P61 | I²C Interface | SCLA0/SDAA0 - dedicated I²C bus pins with internal pull-up support and noise filtering |
| P121–P122 | Crystal Oscillator | X1/X2 inputs for external 32.768 kHz crystal enabling high-accuracy RTC operation |
| RESET, REGC, VDD, VSS | Power & Reset | Active-low RESET with internal POR/LVD; REGC requires 0.47–1 µF capacitor to VSS for regulator stability |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT/STOP modes | Reduces active current to 66 μA/MHz and standby to 0.60 μA - extends battery life in portable sensors |
| Event Link Controller (ELC) | Direct hardware linking of 19–26 peripheral events eliminates CPU polling and ISR latency for time-critical responses |
| Data Flash BGO | Enables concurrent program execution and data flash rewriting - critical for firmware updates without system freeze |
| Dual-voltage I/O interface | Supports 1.8 V, 2.5 V, and 3.0 V logic levels - simplifies interoperation with mixed-voltage peripherals |
| On-chip debug & self-programming | Full on-chip debug with flash shield window and boot swapping - enables secure field firmware upgrades |
Applications
| Home Appliance Control | Industrial Sensor Node |
|---|---|
Use Scenario: Microcontroller in washing machine main board managing motor drive, water level sensing, and UI display. IC Role / Device Role / Timing Role: Central control unit executing real-time PID loops, coordinating UART-driven display, and sampling 10-bit ADC channels for pressure/temperature feedback. Use Value: 192 KB flash stores complex wash cycle logic; SNOOZE mode reduces idle power during pause states; ELC synchronizes ADC triggers with PWM edges. | Use Scenario: Battery-powered wireless temperature/humidity node with LoRaWAN backhaul. IC Role / Device Role / Timing Role: System-on-chip managing sensor acquisition, RTC-timed wake-up, low-power radio interface, and data flash logging. Use Value: 0.60 μA RTC+LVD mode enables multi-year battery life; 8 KB data flash stores 10,000+ timestamped readings; BGO allows logging during RF transmission. |
| Smart Metering Interface | Medical Diagnostic Device |
Use Scenario: Communication interface module in electricity meter connecting metrology IC, PLC modem, and LCD. IC Role / Device Role / Timing Role: Protocol bridge handling SPI-based metrology data capture, UART-based PLC command parsing, and I²C-driven display refresh. Use Value: Multi-channel UART/I²C/SPI coexist without resource conflict; DTC offloads burst data transfers from CPU; 1.6–5.5 V operation tolerates wide supply variance in utility environments. | Use Scenario: Portable blood glucose monitor with touch UI, optical sensor, and Bluetooth LE connectivity. IC Role / Device Role / Timing Role: Safety-certifiable controller acquiring analog sensor signals, driving buzzer alerts, and managing secure BLE packet framing. Use Value: On-chip temperature sensor validates calibration drift; 10-bit ADC meets ISO 15197 accuracy requirements; LVD interrupt at 14 selectable thresholds ensures safe shutdown before battery depletion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104LDAFA#70 | Same package and pinout; 256 KB flash, 24 KB RAM, 8 KB data flash | Higher memory capacity supports larger protocol stacks (e.g., full BLE host stack) and extended data logging | Select when firmware size exceeds 192 KB or additional RAM is required for real-time buffering |
| R5F104LEAFA#70 | Same package and pinout; 384 KB flash, 32 KB RAM, 8 KB data flash | Enables complex HMI with graphics rendering, OTA update partitioning, and dual-bank firmware validation | Choose for next-generation designs requiring headroom for feature expansion and long-term maintenance |
Compared with R5F104LCAFA#70, the R5F104LDAFA#70 and R5F104LEAFA#70 offer scalable flash/RAM while maintaining identical 64-pin LQFP-0.65mm packaging, ELC/DTC peripherals, and ultra-low power profiles - enabling seamless migration paths without PCB redesign.
Availability
R5F104LCAFA#70 is available at Aetrix Electronics and suitable for industrial automation controllers, smart home hubs, and battery-powered sensor nodes requiring stable component supply, long-lifecycle support, and consistent parametric performance across production batches.
Supply support for R5F104LCAFA#70 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/G14 product line targets cost-sensitive, ultra-low-power general-purpose embedded applications - balancing performance, energy efficiency, and integration for appliances, meters, and sensor edge devices.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F104LCAFA#70?
The R5F104LCAFA#70 operates at up to 32 MHz and delivers 44 DMIPS (Dhrystone MIPS) under standard conditions. This performance level is achieved using the RL78 CPU core's 3-stage pipeline and optimized instruction set, enabling deterministic execution of real-time control algorithms in applications such as motor control and sensor fusion without requiring external accelerators.
Does the R5F104LCAFA#70 support background data flash rewriting while executing code from main flash?
Yes, the R5F104LCAFA#70 supports Background Operation (BGO) for data flash. This allows the CPU to execute instructions from program memory while simultaneously rewriting the 8 KB data flash - essential for robust firmware updates, configuration storage, and field calibration without system interruption or freezing the application.
What are the voltage and temperature ratings for the R5F104LCAFA#70?
The R5F104LCAFA#70 is rated for 1.6 V to 5.5 V supply voltage and operates across an industrial temperature range of -40°C to +85°C. Its on-chip voltage detector (LVD) offers 14 programmable threshold levels, and the ultra-low power HALT/STOP modes maintain functionality down to 1.6 V, making it suitable for brown-out resilient designs in variable-input environments.
How many analog input channels and what ADC resolution does the R5F104LCAFA#70 provide?
The R5F104LCAFA#70 integrates a 10-bit successive approximation ADC with up to 16 analog input channels (ANI0–ANI19, excluding reserved pins). It includes an internal 1.45 V reference voltage and on-die temperature sensor, enabling accurate sensor measurements without external references - meeting requirements for precision monitoring in medical and industrial instrumentation.
Is the R5F104LCAFA#70 pin-compatible with other RL78/G14 variants in the same package?
Yes, the R5F104LCAFA#70 is pin-compatible with all RL78/G14 family members in the 64-pin LQFP-0.65mm package (e.g., R5F104LDAFA#70, R5F104LEAFA#70), sharing identical pin functions, electrical characteristics, and mechanical footprint. This enables direct substitution for memory scaling without layout changes, provided firmware accommodates increased flash/RAM resources.
R5F104LCAFA#70 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RL78/G14
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 32MHz
- Connectivity:
- CSI, I2C, LINbus, UART/USART
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 52
- 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; D/A 2x8b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F104LCAFA#70 FAQ
1.How can I place an order for R5F104LCAFA#70 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104LCAFA#70 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 R5F104LCAFA#70 reliable?
The price and inventory of R5F104LCAFA#70 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104LCAFA#70 is usually 5 days.
3.What payment methods are accepted for R5F104LCAFA#70?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104LCAFA#70 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104LCAFA#70?
R5F104LCAFA#70 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104LCAFA#70 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 R5F104LCAFA#70?
For technical support, including R5F104LCAFA#70 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104LCAFA#70 requirements.
6.How does Aetrix verify that R5F104LCAFA#70 is sourced from the original manufacturer or authorized distributors?
All R5F104LCAFA#70 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 R5F104LCAFA#70 meets industry standards.
7.What is the process for return or replacement of R5F104LCAFA#70?
All R5F104LCAFA#70 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104LCAFA#70, 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 R5F104LCAFA#70 part is unused and in its original packaging.
Return procedure for R5F104LCAFA#70:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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