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Renesas R5F104LCAFB#V0
- Part No.:
- R5F104LCAFB#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F104LCAFB#V0.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,154
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Product details
Overview
R5F104LCAFB#V0 from Renesas is a 64-pin LFQFP (10 × 10 mm, 0.5 mm pitch), industrial-grade RL78/G14 16-bit MCU with 192 KB flash, 20 KB RAM, and 8 KB data flash. It operates from 1.6–5.5 V, delivers 44 DMIPS at 32 MHz, and supports ultra-low-power modes (66 μA/MHz active, 0.60 μA RTC+LVD). It targets battery-powered sensor nodes and industrial control interfaces.
For engineers reviewing the R5F104LCAFB#V0 datasheet, R5F104LCAFB#V0 pinout, R5F104LCAFB#V0 application, or R5F104LCAFB#V0 equivalent, key selection criteria include its 64-pin LFQFP-0.5mm package, integrated RTC + LVD + BGO-capable data flash, and support for LIN/UART/SPI/I²C in harsh ambient conditions (−40 to +85°C).
Technical Context
The R5F104LCAFB#V0 implements the RL78 CPU core with 3-stage pipeline, supporting instruction execution times from 0.03125 µs (32 MHz) to 30.5 µs (32.768 kHz). It integrates a Data Transfer Controller (DTC) for autonomous memory transfers triggered by 19–26 event sources via the Event Link Controller (ELC).
Its peripheral set includes an 8/10-bit 20-channel ADC with internal 1.45 V reference and temperature sensor, dual 8-bit DAC outputs (0–VDD), two comparators with window mode, and up to 12× 16-bit timers-including calendar RTC, interval timer, watchdog, and Timer Array Unit (TAU) with capture/compare functionality.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time response and low-energy interrupt handling. |
| Max Clock Speed | 32 MHz (44 DMIPS); sufficient for LIN bus timing, motor control loops, and sensor fusion without external clocking. |
| Flash / Data Flash / RAM | 192 KB code flash / 8 KB data flash / 20 KB SRAM; supports background rewriting (BGO) and boot swapping for field firmware updates. |
| Supply Voltage | 1.6–5.5 V; allows direct interface with 1.8 V, 3.3 V, and 5 V peripherals without level shifters. |
| Operating Temperature | −40 to +85°C (Industrial grade D); qualified for factory automation, HVAC controllers, and metering applications. |
| Low-Power Modes | HALT (66 μA/MHz), STOP (0.60 μA), SNOOZE; enables multi-year battery life in wireless sensor endpoints with periodic wake-up. |
| Analog Peripherals | 20-channel 8/10-bit ADC (1.45 V ref + temp sensor), dual 8-bit DAC (0–VDD output), 2× comparator with window mode; supports closed-loop analog monitoring and actuation. |
Pinout & Package
Package: 64-pin LFQFP (10 × 10 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P121 / X1 | Crystal input (low-speed) | Connects to 32.768 kHz tuning-fork crystal for RTC accuracy and ultra-low-power timekeeping. |
| P122 / X2 / EXCLK | Crystal output / external clock input | Drives 32.768 kHz crystal; also accepts external clock source for synchronous system timing. |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; compatible with external RC or supervisor IC reset assertion. |
| VDD / VSS | Power supply / ground | Dual power pins per side (4× VDD, 4× VSS) minimize IR drop and improve noise immunity in mixed-signal operation. |
| P30 / INTP3 / RTC1HZ / SCK00 | Interrupt / RTC output / SPI clock | Delivers 1 Hz RTC tick for time-slicing; configurable as SPI master clock or general-purpose interrupt source. |
| P14 / RxD2 / SI20 / SDA20 | UART receive / SPI input / I²C data | Multi-function pin supports serial protocol stacking-enables shared physical layer for debug, sensor comms, and bus bridging. |
| P15 / PCLBUZ1 / SCK20 / SCL20 | Buzzer drive / SPI clock / I²C clock | Hardware buzzer PWM generation eliminates MCU overhead; dual-use clock pin reduces pin count in compact designs. |
| REGC | Regulator bypass capacitor terminal | Requires 0.47–1 µF ceramic cap to VSS for stable on-chip voltage regulator operation-critical for ADC/DAC accuracy. |
Key Features
| Feature | Design Value |
|---|---|
| Self-programming flash | Boot swapping and flash shield window enable secure, atomic firmware updates without runtime interruption. |
| Background operation (BGO) | Data flash rewrite proceeds while CPU executes from program memory-no latency penalty during logging or calibration. |
| Event Link Controller (ELC) | Direct hardware linking of 19–26 peripheral events eliminates CPU polling and ISR overhead for time-critical sequences. |
| Peripheral I/O redirection | Dynamic remapping of UART/SPI/I²C functions to alternate pins simplifies PCB layout and enables pin reuse across variants. |
| On-chip voltage detector (LVD) | 14-level programmable reset/interrupt threshold ensures graceful shutdown or brown-out recovery across supply tolerances. |
| Dual DAC with real-time output | Simultaneous 8-bit analog outputs (0–VDD) with independent update triggers support dual-channel actuator control or waveform generation. |
Applications
| Industrial Sensor Node | Smart HVAC Controller |
|---|---|
|
Use Scenario: Battery-powered temperature/humidity/CO₂ sensor node transmitting data over sub-GHz RF or wired RS-485. IC Role / Device Role / Timing Role: Main controller managing ADC sampling, RTC-triggered sleep/wake cycles, LIN/UART communication, and low-power state transitions. Use Value: 0.60 μA STOP mode extends 2xAA battery life beyond 5 years; BGO enables seamless firmware updates during idle periods. |
Use Scenario: Wall-mounted HVAC thermostat with display, relay drivers, and environmental sensing. IC Role / Device Role / Timing Role: System-on-chip handling touch interface, 10-bit ADC for thermistor readings, dual DAC for valve control, and LIN bus to compressor module. Use Value: Integrated LVD prevents erratic behavior during brown-outs; on-chip buzzer driver eliminates external driver IC for user feedback. |
| Factory Automation I/O Module | Energy Meter Communication Hub |
|
Use Scenario: DIN-rail mounted digital I/O expansion unit with opto-isolated inputs and MOSFET outputs. IC Role / Device Role / Timing Role: Real-time I/O manager using DTC for high-speed GPIO state capture and ELC-triggered PWM output updates. Use Value: Hardware-peripheral chaining reduces CPU load below 5%, freeing resources for Modbus RTU protocol stack execution. |
Use Scenario: Smart electricity meter with PLC or RF mesh backhaul, tamper detection, and tariff switching. IC Role / Device Role / Timing Role: Secure metering co-processor managing AES encryption, RTC calendar, tamper-interrupt service, and isolated UART to metrology ASIC. Use Value: 192 KB flash hosts dual-application image (metering + comms); data flash endurance (1M cycles) supports daily tariff log storage for 10+ years. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104LHAFB#V0 | Same 64-pin LFQFP package, but 128 KB flash / 16 KB RAM / 8 KB data flash; lower memory density. | Suitable where firmware footprint < 128 KB and BOM cost reduction is prioritized over future scalability. | Select when application code size is confirmed ≤120 KB and long-term feature expansion is not required. |
| R5F104LGAFB#V0 | Same package, 96 KB flash / 12 KB RAM / 8 KB data flash; reduced peripheral count (e.g., fewer UART channels). | Fits simpler control tasks like basic relay logic or single-sensor monitoring without LIN or dual DAC needs. | Choose for cost-sensitive, functionally constrained designs where full RL78/G14 peripheral complement is unnecessary. |
Compared with R5F104LHAFB#V0 and R5F104LGAFB#V0, the R5F104LCAFB#V0 provides 64 KB more flash and 4–8 KB more RAM-enabling larger protocol stacks (e.g., full Modbus TCP offload), extended data logging, and dual-application partitioning without external memory.
Availability
R5F104LCAFB#V0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart HVAC controllers, and factory automation I/O modules requiring stable component supply across multi-year production cycles.
Supply support for R5F104LCAFB#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, and power solutions for automotive, industrial, and IoT markets.
The RL78/G14 product line delivers true low-power 16-bit performance for cost-sensitive industrial and consumer applications, emphasizing energy efficiency, integrated analog, and robust peripheral flexibility.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F104LCAFB#V0?
The R5F104LCAFB#V0 achieves a maximum operating frequency of 32 MHz, delivering 44 DMIPS (Dhrystone MIPS) performance. This is measured under standard conditions with the high-speed on-chip oscillator enabled and reflects real-world throughput for mixed C/assembly workloads including interrupt handling and peripheral access.
Does the R5F104LCAFB#V0 support background data flash rewriting while executing code from main flash memory?
Yes, the R5F104LCAFB#V0 supports Background Operation (BGO) for data flash. Instructions can be fetched and executed from program memory during data flash erase/write cycles, enabling uninterrupted real-time operation-for example, logging sensor data while maintaining control loop execution in the R5F104LCAFB#V0.
What are the supported low-power modes and their typical current consumption for the R5F104LCAFB#V0?
The R5F104LCAFB#V0 supports HALT (66 μA/MHz), STOP (0.60 μA with RTC + LVD active), and SNOOZE modes. STOP mode current is measured at VDD = 3.0 V, TA = 25°C, with only RTC and LVD enabled-making it ideal for battery-backed timekeeping and wake-on-event applications using the R5F104LCAFB#V0.
How many serial communication interfaces does the R5F104LCAFB#V0 integrate, and what protocols do they support?
The R5F104LCAFB#V0 integrates up to 3 UART/LIN channels, 3–8 CSI (SPI-compatible) channels, and 4–10 I²C/simplified I²C channels. All UART modules support LIN 2.2 compliance, and CSI channels offer master/slave operation with programmable clock polarity and phase-providing flexible connectivity for sensors, displays, and bus bridges in the R5F104LCAFB#V0.
What is the ADC resolution, input channel count, and reference voltage options for the R5F104LCAFB#V0?
The R5F104LCAFB#V0 features an 8/10-bit successive-approximation ADC with up to 20 analog input channels. It supports external reference voltage or internal 1.45 V reference, and includes an on-die temperature sensor calibrated across −40 to +85°C-enabling accurate environmental monitoring without external components in the R5F104LCAFB#V0.
R5F104LCAFB#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RL78/G14
- 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:
- 48
- 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:
R5F104LCAFB#V0 FAQ
1.How can I place an order for R5F104LCAFB#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104LCAFB#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 R5F104LCAFB#V0 reliable?
The price and inventory of R5F104LCAFB#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104LCAFB#V0 is usually 5 days.
3.What payment methods are accepted for R5F104LCAFB#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104LCAFB#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104LCAFB#V0?
R5F104LCAFB#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104LCAFB#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 R5F104LCAFB#V0?
For technical support, including R5F104LCAFB#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104LCAFB#V0 requirements.
6.How does Aetrix verify that R5F104LCAFB#V0 is sourced from the original manufacturer or authorized distributors?
All R5F104LCAFB#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 R5F104LCAFB#V0 meets industry standards.
7.What is the process for return or replacement of R5F104LCAFB#V0?
All R5F104LCAFB#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104LCAFB#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 R5F104LCAFB#V0 part is unused and in its original packaging.
Return procedure for R5F104LCAFB#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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