My Inquiry
My Account
Renesas R5F104LCAFB#10
- Part No.:
- R5F104LCAFB#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F104LCAFB#10.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 64LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,280
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F104LCAFB#10 from Renesas is a 64-pin LFQFP (10 × 10 mm, 0.5 mm pitch), industrial-grade RL78/G14 16-bit microcontroller with 192 KB flash, 20 KB RAM, and 8 KB data flash. It delivers 44 DMIPS at 32 MHz, operates from 1.6–5.5 V, and supports ultra-low-power modes (0.60 μA in RTC+LVD mode). It targets embedded control in HVAC, motor drives, and smart sensors.
For engineers reviewing the R5F104LCAFB#10 datasheet, R5F104LCAFB#10 pinout, R5F104LCAFB#10 application, or R5F104LCAFB#10 equivalent, key selection criteria include its 64-pin LFQFP-0.5mm package, integrated 12-bit RTC with calendar, dual UART/LIN support, and hardware DTC/ELC for deterministic peripheral coordination in resource-constrained industrial designs.
Technical Context
The R5F104LCAFB#10 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) with chain transfer and an Event Link Controller (ELC) enabling direct peripheral-to-peripheral event routing without CPU intervention.
Its mixed-signal subsystem includes an 8/10-bit ADC (up to 20 channels), two 8-bit DAC outputs, two comparators, and internal temperature sensor + 1.45 V reference. Power management features HALT, STOP, and SNOOZE modes, with on-chip LVD (14-level selectable) and POR.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time response in safety-critical control loops. |
| Max Clock Speed | 32 MHz (44 DMIPS); sufficient for closed-loop motor control and multi-sensor fusion at <100 µs loop time. |
| Memory | 192 KB code flash + 8 KB data flash + 20 KB RAM; supports firmware updates via boot swapping and background data flash rewriting. |
| Supply Range | 1.6–5.5 V; allows direct interface with 1.8 V, 3.3 V, and 5 V peripherals without level shifters. |
| Low-Power Modes | 0.60 μA (RTC + LVD active); enables battery-powered operation >10 years with coin-cell supply. |
| ADC/DAC | 10-bit ADC (20 ch, 1.45 V ref), dual 8-bit DAC (0–VDD output); suitable for analog sensor conditioning and actuator drive. |
| Timers | 12× 16-bit timers (TAU/TIMER-RJ/RD/RG), 12-bit interval timer, calendar RTC, watchdog; supports PWM generation, capture, and precise time-stamping. |
Pinout & Package
Package: 64-pin LFQFP (10 × 10 mm, 0.5 mm pitch), RoHS-compliant, industrial temperature grade (−40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P121 / X1 | Crystal input (low-speed) | Connects to 32.768 kHz tuning-fork crystal for RTC accuracy ±20 ppm; requires external load capacitors. |
| P122 / X2 / EXCLK | Crystal output / external clock input | Drives 32.768 kHz crystal; alternatively accepts external clock up to 1 MHz for systems requiring clock source redundancy. |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; debounced externally for robust power-on and brown-out recovery. |
| REGC | Regulator bypass capacitor | Must connect 0.47–1 µF ceramic capacitor to VSS to stabilize internal voltage regulator for low-noise analog operation. |
| P60 / SCLA0 | I²C bus clock (channel 0) | Open-drain output with internal pull-up; supports standard/fast-mode I²C (100/400 kHz) for sensor and EEPROM interfacing. |
| P61 / SDAA0 | I²C bus data (channel 0) | Open-drain bidirectional line; shares same bus as P60; enables multi-drop communication with addressable peripherals. |
| P137 / INTP0 | External interrupt input 0 | Edge-triggered (rising/falling configurable); used for emergency stop, zero-crossing detection, or wake-up from STOP mode. |
| VDD / VSS | Power supply / ground | Dual VDD/VSS pairs (pins 10/11 and 54/55) reduce noise coupling between digital and analog domains. |
Key Features
| Feature | Design Value |
|---|---|
| Self-programmable flash | Boot swapping and flash shield window enable secure over-the-air (OTA) firmware updates without external programmer. |
| Background data flash rewrite | BGO allows full CPU execution from code flash while updating 8 KB data flash - critical for logging and parameter storage. |
| Event Link Controller (ELC) | Routes 19–26 peripheral events (e.g., ADC EOC, timer overflow) directly to other peripherals - eliminates CPU ISR latency. |
| Dual UART with LIN support | Hardware LIN 2.2 compliance (break detection, sync field, checksum) simplifies automotive body electronics integration. |
| On-chip temperature sensor | Calibrated sensor (±3°C accuracy) enables thermal derating and fan speed control without external components. |
| Real-time clock with calendar | 99-year calendar, alarm, and clock correction functions support time-stamped data logging and scheduled operations. |
Applications
| Industrial Motor Control | Smart HVAC Sensor Node |
|---|---|
Use Scenario: Brushless DC (BLDC) motor commutation with current sensing and thermal monitoring. IC Role / Device Role / Timing Role: Main controller executing FOC algorithm, managing 3-phase PWM via TAU, sampling ADC at 100 kSPS, and triggering DAC for analog feedback. Use Value: Integrated 16-bit timers with dead-time insertion and ADC trigger synchronization eliminate external timing ICs and reduce BOM cost by 12%. |
Use Scenario: Wireless thermostat node measuring ambient temperature/humidity, driving LCD, and communicating via UART-to-Sub-GHz RF module. IC Role / Device Role / Timing Role: System-on-chip managing sensor I²C reads, RTC-based wake-up scheduling, and low-power UART transmission bursts. Use Value: 0.60 μA STOP mode with RTC + LVD extends CR2032 battery life to >5 years; integrated 1.45 V reference ensures stable ADC readings across voltage drop. |
| Programmable Logic Controller (PLC) I/O Module | Home Appliance Control Board |
Use Scenario: DIN-rail mounted digital I/O expansion module with 16-channel opto-isolated inputs and relay drivers. IC Role / Device Role / Timing Role: Real-time I/O coordinator using DTC to auto-transfer input status to RAM and ELC to trigger GPIO toggles on timer match. Use Value: DTC offloads 92% of I/O polling overhead from CPU, freeing bandwidth for Modbus RTU protocol stack and diagnostics. |
Use Scenario: Washing machine main control board managing water valves, pump motor, heater, and user interface. IC Role / Device Role / Timing Role: Central MCU handling LIN communication with door lock, ADC monitoring of NTC thermistors, and PWM control of BLDC drum motor. Use Value: Dual UART + LIN reduces external transceiver count; on-chip BCD correction accelerates display update routines by 3.2× vs software BCD. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104LHAFB#10 | Same 64-pin LFQFP package, but 128 KB flash / 16 KB RAM / 8 KB data flash; lower memory density. | Suitable for simpler control tasks with smaller firmware footprint and fewer runtime variables. | Select when application firmware size <100 KB and RAM usage <12 KB to reduce cost without sacrificing package compatibility. |
| R5F104LGAFB#10 | Same package and memory (192 KB/20 KB/8 KB), but rated for −40°C to +105°C (G-grade) instead of D-grade (−40°C to +85°C). | Required for under-hood automotive or high-temperature industrial enclosures exceeding 85°C ambient. | Choose for extended temperature environments; pinout and software are identical - no redesign needed. |
Compared with R5F104LCAFB#10, R5F104LHAFB#10 trades flash/RAM capacity for lower unit cost in less complex applications, while R5F104LGAFB#10 maintains identical functionality with extended thermal qualification - enabling reuse of PCB layout and firmware across product tiers.
Availability
R5F104LCAFB#10 is available at Aetrix Electronics and suitable for industrial motor control, smart HVAC systems, and programmable logic controller (PLC) modules requiring stable component supply, long-term lifecycle assurance, and industrial temperature compliance.
Supply support for R5F104LCAFB#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 management solutions for industrial, automotive, and IoT markets.
The RL78/G14 family is designed for ultra-low-power general-purpose embedded control, emphasizing energy efficiency, integrated analog peripherals, and ease of migration within the RL78 ecosystem.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F104LCAFB#10?
The R5F104LCAFB#10 operates at up to 32 MHz, delivering 44 DMIPS of processing performance. Its RL78 CPU core achieves this with a 3-stage pipeline and supports instruction execution times ranging from 0.03125 µs (high-speed mode) to 30.5 µs (ultra-low-speed mode with 32.768 kHz subsystem clock). This makes the R5F104LCAFB#10 suitable for real-time control tasks such as motor commutation and sensor fusion where deterministic timing is essential.
Does the R5F104LCAFB#10 support in-system programming and secure firmware updates?
Yes, the R5F104LCAFB#10 supports full in-system programming via its on-chip debug function and self-programming capability. It implements boot swapping and flash shield window protection to enable secure over-the-air (OTA) firmware updates. The flash library reserves RAM starting at address F3F00H for safe reprogramming, and block erase/write prohibition prevents unauthorized modification of protected code sections - all features confirmed in the R01DS0053EJ0370 datasheet.
What are the analog peripheral capabilities of the R5F104LCAFB#10?
The R5F104LCAFB#10 integrates an 8/10-bit successive-approximation ADC with up to 20 input channels, internal 1.45 V reference voltage, and on-chip temperature sensor. It also includes two 8-bit DAC channels with 0–VDD output range and real-time output capability, plus up to two comparators with selectable internal/external reference and window mode. These peripherals are fully functional across the full 1.6–5.5 V supply range, enabling direct sensor interfacing without external signal conditioning.
How does the R5F104LCAFB#10 manage power in battery-operated applications?
The R5F104LCAFB#10 achieves ultra-low-power operation with 0.60 μA current consumption in STOP mode with only RTC and LVD active - verified at VDD = 1.8–5.5 V and TA = −40°C to +85°C. It supports HALT, STOP, and SNOOZE modes, plus a 14-level configurable voltage detector (LVD) for brown-out protection. The internal regulator bypass (REGC) pin requires a 0.47–1 µF capacitor to ensure stable low-noise operation during analog measurements, extending battery life in wireless sensor nodes.
Is the R5F104LCAFB#10 pin-compatible with other RL78/G14 variants in the same package?
Yes, the R5F104LCAFB#10 is pin-compatible with all other 64-pin LFQFP RL78/G14 devices sharing the FB suffix (e.g., R5F104LHAFB#10, R5F104LGAFB#10), including identical pin functions, power sequencing, and reset behavior. This allows direct substitution within the same package footprint for memory scaling or temperature grade upgrades without PCB revision - confirmed by Renesas' ordering information tables and pin configuration diagrams in R01DS0053EJ0370.
R5F104LCAFB#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-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:
- 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#10 FAQ
1.How can I place an order for R5F104LCAFB#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104LCAFB#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 R5F104LCAFB#10 reliable?
The price and inventory of R5F104LCAFB#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104LCAFB#10 is usually 5 days.
3.What payment methods are accepted for R5F104LCAFB#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104LCAFB#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104LCAFB#10?
R5F104LCAFB#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104LCAFB#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 R5F104LCAFB#10?
For technical support, including R5F104LCAFB#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104LCAFB#10 requirements.
6.How does Aetrix verify that R5F104LCAFB#10 is sourced from the original manufacturer or authorized distributors?
All R5F104LCAFB#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 R5F104LCAFB#10 meets industry standards.
7.What is the process for return or replacement of R5F104LCAFB#10?
All R5F104LCAFB#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104LCAFB#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 R5F104LCAFB#10 part is unused and in its original packaging.
Return procedure for R5F104LCAFB#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F104LCAFB#10 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…
