My Inquiry
My Account
Renesas R5F104LEDFB#X0
- Part No.:
- R5F104LEDFB#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F104LEDFB#X0.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,775
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F104LEDFB#X0 from Renesas is a 64-pin LFQFP (0.5 mm pitch), 48 KB flash, 5.5 KB RAM, 10-bit ADC, 32 MHz RL78/G14 microcontroller operating from 1.6–5.5 V, delivering 44 DMIPS and ultra-low-power operation (66 μA/MHz active, 0.60 μA RTC+LVD mode) for industrial control and sensor interface applications.
For engineers reviewing the R5F104LEDFB#X0 datasheet, R5F104LEDFB#X0 pinout, R5F104LEDFB#X0 application, or R5F104LEDFB#X0 equivalent, key selection criteria include its 64-pin LFQFP-0.5 mm package, integrated RTC with calendar, dual UART/LIN support, 16-channel 10-bit ADC, and industrial-grade temperature range (−40°C to +85°C).
Technical Context
The R5F104LEDFB#X0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, 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 power management includes HALT, STOP, and SNOOZE modes, on-chip POR and LVD with 14 selectable voltage levels, and a dedicated low-speed on-chip oscillator for watchdog timer operation - all optimized for deterministic real-time response in battery-powered and energy-constrained systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and multiply/divide/accumulate instructions |
| Max Clock Speed | 32 MHz (44 DMIPS); high-accuracy on-chip oscillator ±1.0% over −20 to +85°C |
| Memory | 48 KB code flash (1 KB block size), 4 KB data flash (1M rewrite cycles), 5.5 KB SRAM |
| Analog Peripherals | 10-bit ADC with 16 input channels, internal 1.45 V reference, and temperature sensor |
| Serial Interfaces | 3 UART/LIN channels, 4 I²C/simplified I²C channels, 3 CSI (SPI-compatible) channels |
| Timers | 8× 16-bit TAU timers, 1× 12-bit interval timer, 1× RTC with calendar/alarm/correction, 1× WDT |
| Supply & Temp | 1.6–5.5 V operation; −40°C to +85°C ambient (industrial D-grade) |
Pinout & Package
Package: 64-pin LFQFP, 10 × 10 mm body, 0.5 mm pitch, exposed pad not present (standard LFQFP).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART1 transmit; general-purpose timer input; trace clock A for debug |
| P01 | RxD1 / TO00 / TRGCLKB | Primary UART1 receive; timer output; trace clock B for debug |
| P10–P17 | CSI1/SPI1, UART2, I²C1, TAU0, TRDIOx | Multiplexed serial and timer I/O; supports LIN bus framing via UART2 |
| P120–P147 | VCOUT0/1, ANI19–18, PCLBUZ0/1 | Dedicated voltage-controlled oscillator outputs, analog inputs, and programmable buzzer drivers |
| P30–P31 | RTC1HZ / SCK00 / TI03 / TO03 | Real-time clock 1 Hz output; SPI0 clock; timer input/output for precise timing events |
| RESET, REGC, VDD, VSS | Reset control, regulator capacitor, power rails | REGC requires 0.47–1 μF capacitor to VSS; VDD/VSS pair supports decoupling for low-noise analog operation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power HALT/STOP/SNOOZE modes | Enables sub-μA retention with RTC + LVD active - critical for battery-operated sensor nodes |
| Background Data Flash rewriting (BGO) | Allows full program execution while updating non-volatile configuration or calibration data |
| Event Link Controller (ELC) | Eliminates CPU polling by triggering peripherals (ADC, timers, UART) directly via hardware events |
| On-chip debug with boot swap | Supports field firmware updates with fail-safe rollback using dual flash banks |
| Peripheral I/O redirection (PIOR) | Reassigns up to 16 peripheral functions to alternate pins without PCB redesign |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
Use Scenario: Compact BLDC motor driver with speed feedback, fault monitoring, and LIN communication to main controller. IC Role / Device Role / Timing Role: Main system MCU executing FOC algorithm, managing PWM generation via TAU timers, and handling LIN protocol stack. Use Value: Integrated 10-bit ADC (16 ch) samples current/voltage sensors; RTC enables time-stamped fault logging; 48 KB flash accommodates motor control firmware + safety routines. | Use Scenario: Battery-powered environmental sensor node measuring temperature, humidity, and CO₂ with wireless upload. IC Role / Device Role / Timing Role: System controller managing sensor acquisition, low-power scheduling, and UART-to-Bluetooth bridge. Use Value: 0.60 μA STOP mode extends 10-year battery life; internal temperature sensor calibrates external sensors; BGO allows OTA parameter updates without interrupting measurements. |
| Home Appliance UI | Energy Meter Interface |
Use Scenario: Touchless control panel for oven/microwave with LED indicators, buzzer feedback, and safety interlocks. IC Role / Device Role / Timing Role: Dedicated UI processor handling capacitive touch scanning, buzzer tone generation, and relay control sequencing. Use Value: PCLBUZ0/1 pins drive piezo buzzers at programmable frequencies; 16-bit TAU timers generate precise LED dimming waveforms; 4 KB data flash stores user preferences securely. | Use Scenario: Pulse-output interface between utility meter and smart home gateway, with tamper detection and timestamping. IC Role / Device Role / Timing Role: Isolated pulse counter and time-stamping unit interfacing via optocoupler inputs and UART output. Use Value: Dedicated TI03/TO03 pins count meter pulses with hardware capture; RTC calendar stamps each kWh reading; LIN-capable UART ensures compatibility with legacy building automation protocols. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104LEDFB#V0 | Same die, tray packaging (LFQFP-0.5 mm), no functional difference | Identical electrical and thermal specs; differs only in packaging format and reel/tape orientation | Select #V0 for manual prototyping or small-batch assembly where tray handling is preferred |
| R5F104LEGFB#X0 | G-grade variant: −40°C to +105°C operation, same flash/RAM/peripherals | Required for under-hood automotive or high-temp industrial enclosures exceeding +85°C | Choose #GFB when ambient exceeds 85°C; otherwise #DFB provides cost-optimized D-grade performance |
Compared with R5F104LEDFB#X0, the #V0 offers identical functionality in tray packaging for easier evaluation, while the #GFB extends temperature range to +105°C for harsh environments - both retain the same 48 KB flash, 10-bit ADC, and ELC capability without layout changes.
Availability
R5F104LEDFB#X0 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, home appliance UIs, energy meter interfaces, and LIN-based subsystems requiring stable component supply across multi-year production cycles.
Supply support for R5F104LEDFB#X0 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 industrial, automotive, and IoT markets.
The RL78/G14 product line delivers true low-power 16-bit MCUs with integrated analog, communication, and timing peripherals - designed specifically for cost-sensitive, energy-efficient embedded control in industrial and consumer equipment.
FAQ
What is the maximum operating frequency and power consumption of the R5F104LEDFB#X0?
The R5F104LEDFB#X0 operates up to 32 MHz with 44 DMIPS performance and achieves 66 μA/MHz active current. In STOP mode with only RTC and LVD enabled, it consumes just 0.60 μA - verified per Renesas R01DS0053EJ0340 datasheet Section 1.1. This makes R5F104LEDFB#X0 ideal for battery-backed real-time monitoring applications.
Does the R5F104LEDFB#X0 support LIN bus communication?
Yes, the R5F104LEDFB#X0 supports LIN bus communication through its UART2 peripheral, which includes built-in LIN break detection and sync field generation. UART2 is fully compliant with LIN 2.2A and can operate as master or slave - confirmed in Section 1.1 "Serial Interfaces" of the R5F104LEDFB#X0 datasheet.
What are the memory resources allocated to the R5F104LEDFB#X0?
The R5F104LEDFB#X0 integrates 48 KB of code flash memory (1 KB erase blocks), 4 KB of data flash memory rated for 1,000,000 write cycles, and 5.5 KB of on-chip SRAM. These values are explicitly listed in Table 1-1 of the R5F104LEDFB#X0 datasheet for the "LE" memory configuration.
Which package type and pin count does the R5F104LEDFB#X0 use?
The R5F104LEDFB#X0 uses a 64-pin LFQFP package with 0.5 mm pitch, as indicated by the "FB" suffix in the part number and confirmed in Table 1-1 (Page 5) of the R5F104LEDFB#X0 datasheet. The "#X0" denotes embossed tape packaging for automated SMT placement.
Can the R5F104LEDFB#X0 perform background data flash writes during program execution?
Yes, the R5F104LEDFB#X0 supports Background Operation (BGO) for data flash, allowing CPU code execution from program memory while simultaneously rewriting data flash - essential for logging or parameter updates without interrupting real-time tasks. This is documented in Section 1.1 "Data Flash Memory" of the R5F104LEDFB#X0 datasheet.
R5F104LEDFB#X0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RL78/G14
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 5.5K 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:
R5F104LEDFB#X0 FAQ
1.How can I place an order for R5F104LEDFB#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104LEDFB#X0 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 R5F104LEDFB#X0 reliable?
The price and inventory of R5F104LEDFB#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104LEDFB#X0 is usually 5 days.
3.What payment methods are accepted for R5F104LEDFB#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104LEDFB#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104LEDFB#X0?
R5F104LEDFB#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104LEDFB#X0 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 R5F104LEDFB#X0?
For technical support, including R5F104LEDFB#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104LEDFB#X0 requirements.
6.How does Aetrix verify that R5F104LEDFB#X0 is sourced from the original manufacturer or authorized distributors?
All R5F104LEDFB#X0 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 R5F104LEDFB#X0 meets industry standards.
7.What is the process for return or replacement of R5F104LEDFB#X0?
All R5F104LEDFB#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104LEDFB#X0, 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 R5F104LEDFB#X0 part is unused and in its original packaging.
Return procedure for R5F104LEDFB#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F104LEDFB#X0 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…
