Renesas R5F104LCGFA#50
- Part No.:
- R5F104LCGFA#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F104LCGFA#50.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 64LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:1,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F104LCGFA#50 from Renesas is a 64-pin LQFP-0.65 mm pitch, industrial-grade (−40°C to +105°C) RL78/G14 16-bit MCU with 512 KB flash, 48 KB RAM, 8 KB data flash, and integrated RTC, 16-bit timers, 10-bit ADC (20 ch), UART/LIN, I²C, and CSI interfaces. It delivers 44 DMIPS at 32 MHz and operates from 1.6 V to 5.5 V for battery-powered industrial control and sensor hub applications.
For engineers reviewing the R5F104LCGFA#50 datasheet, R5F104LCGFA#50 pinout, R5F104LCGFA#50 application, or R5F104LCGFA#50 equivalent, key selection criteria include its 512 KB code flash with self-programming, ultra-low-power STOP mode (0.60 μA), 20-channel 10-bit ADC with internal temperature sensor, and LIN-compliant UART for automotive body electronics integration.
Technical Context
The R5F104LCGFA#50 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 integrates a Data Transfer Controller (DTC) supporting chain transfer and an Event Link Controller (ELC) enabling direct peripheral-to-peripheral event routing without CPU intervention.
Its power management includes on-chip POR, selectable 14-level LVD with interrupt/reset, HALT/STOP/SNOOZE modes, and a high-accuracy ±1.0% on-chip oscillator (1–64 MHz). The device supports background operation (BGO) during data flash rewriting and uses dedicated low-speed oscillator for watchdog timer operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and multiply/divide instructions |
| Max Clock Speed | 32 MHz (44 DMIPS); supported by ±1.0% accurate on-chip oscillator |
| Memory | 512 KB code flash (1 KB blocks), 48 KB RAM, 8 KB data flash (1M rewrite cycles) |
| ADC | 10-bit resolution, 20 input channels, internal 1.45 V reference and temperature sensor |
| Timers | 12× 16-bit timers (TAU/Timer RJ/RD/RG), 1× 12-bit interval timer, 1× RTC with calendar/alarm |
| Serial Interfaces | 3–4 UART/LIN channels, 4–10 I²C/simplified I²C channels, 3–8 CSI (SPI-compatible) channels |
| Supply & Temp | 1.6–5.5 V operation; industrial grade −40°C to +105°C (G-grade) |
Pinout & Package
Package: 64-pin LQFP, 12 × 12 mm, 0.65 mm pitch, lead-free, RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART transmit; timer input; trace clock A for debug |
| P01 | RxD1 / TO00 / TRGCLKB | Primary UART receive; timer output; trace clock B |
| P10–P17 | CSI1/SI11/SDA11–TRDIOD1, UART2, I²C, DTC triggers | Multiplexed serial and interrupt-capable I/O for peripheral expansion |
| P120–P122 | VCOUT0 / X2 / EXCLK / X1 | Crystal oscillator inputs (32.768 kHz RTC) and external clock input |
| P137 | INTP0 | Non-maskable interrupt input for system reset or critical fault handling |
| P147 | ANI18 / VCOUT1 | Analog input channel 18; secondary voltage-controlled oscillator output |
| RESET | Active-low reset input | Hardware reset with internal pull-up; accepts external debounced signal |
| VDD / VSS | Power supply / ground | Dual power domains support mixed-voltage I/O (1.8/2.5/3.3 V interface capability) |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power STOP mode | 0.60 μA typical current draw with RTC and LVD active - enables multi-year battery life in metering |
| Data flash BGO | Background operation allows full CPU execution while rewriting 8 KB data flash - no firmware stalls during logging |
| Event Link Controller (ELC) | Direct hardware linking of 19–26 peripheral events eliminates CPU polling overhead in real-time control loops |
| On-chip debug & self-programming | Boot swapping and flash shield window enable secure field firmware updates without external programmer |
| Multi-voltage I/O | N-ch open-drain ports tolerate 6 V; configurable TTL input buffers allow safe interfacing with 1.8/2.5/3 V logic |
Applications
| Industrial Sensor Hub | Automotive Body Control Module |
|---|---|
Use Scenario: Centralized acquisition and preprocessing of temperature, humidity, and analog sensor data in factory automation nodes. IC Role / Device Role / Timing Role: Main controller executing sensor fusion algorithms, managing SPI/I²C sensor buses, and timestamping data via integrated RTC. Use Value: 20-channel 10-bit ADC with internal temperature sensor and 0.60 μA STOP mode enable long-life wireless sensor nodes with local edge processing. | Use Scenario: LIN-based door module controlling window lift, mirror adjustment, and interior lighting. IC Role / Device Role / Timing Role: LIN-compliant UART handles master/slave communication; PWM outputs drive motor drivers; GPIOs monitor switch inputs. Use Value: Integrated LIN protocol support, 16-bit timer PWM with dead-time insertion, and −40°C to +105°C operation meet automotive body electronics requirements. |
| Smart Energy Meter | Home Appliance Control Unit |
Use Scenario: Residential electricity meter with tamper detection, pulse counting, and secure data logging. IC Role / Device Role / Timing Role: Real-time energy calculation engine using hardware multipliers; secure flash writes store billing data; RTC maintains accurate time-of-use stamps. Use Value: 8 KB data flash rated for 1 million rewrites ensures reliable lifetime logging; flash shield window prevents unauthorized firmware access. | Use Scenario: Washing machine main board managing motor control, water level sensing, user interface, and safety interlocks. IC Role / Device Role / Timing Role: Executes PID motor control via PWM; reads analog pressure/temperature sensors; drives buzzer and LED indicators via PCLBUZ peripherals. Use Value: On-chip PCLBUZ0/PCLBUZ1 generate precise audio tones; 16-bit TAU timers deliver accurate motor phase timing; 48 KB RAM supports complex UI state machines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104LGFA#50 | Same package and pinout; 384 KB flash, 32 KB RAM, 8 KB data flash | Lower memory footprint suits cost-sensitive industrial controls where full 512 KB is unnecessary | Select when application firmware size is < 384 KB and BOM cost optimization is prioritized over future scalability |
| R5F104LJGFA#50 | Same 512 KB flash, 48 KB RAM, 8 KB data flash; differs in G-grade temp range and LQFP-0.65 mm packaging | Identical functional spec but ordered with different suffix indicating same industrial qualification and packaging | Valid alternative if sourcing flexibility is needed; verify exact suffix compliance with procurement documentation |
Compared with R5F104LCGFA#50, R5F104LGFA#50 reduces flash/RAM capacity for lower unit cost in fixed-function systems, while R5F104LJGFA#50 offers identical specifications under an alternate ordering suffix - both preserve pin compatibility and industrial temperature rating.
Availability
R5F104LCGFA#50 is available at Aetrix Electronics and suitable for industrial sensor hubs, smart energy meters, and automotive body electronics requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F104LCGFA#50 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 optimized for cost-sensitive, battery-operated, and thermally demanding applications requiring rich analog integration and robust real-time control.
FAQ
What is the operating temperature range for the R5F104LCGFA#50?
The R5F104LCGFA#50 is rated for industrial operation from −40°C to +105°C (G-grade), validated per Renesas specification R01DS0053EJ0370. This makes it suitable for under-hood automotive modules, factory-floor controllers, and outdoor metering equipment where ambient thermal stress exceeds consumer-grade limits. The device maintains full functionality-including 10-bit ADC accuracy and RTC calendar operation-across this full range.
Does the R5F104LCGFA#50 support LIN bus communication?
Yes, the R5F104LCGFA#50 supports LIN bus communication via its UART peripherals, which are explicitly LIN-bus compatible per the RL78/G14 datasheet. UART channels can be configured for LIN 2.2A/2.2B frame formatting, checksum generation, and automatic sync-break detection. This enables direct integration into automotive body electronics such as seat control, lighting modules, and HVAC actuators without external transceivers.
How much data flash does the R5F104LCGFA#50 include, and what is its endurance?
The R5F104LCGFA#50 includes 8 KB of on-chip data flash memory with a guaranteed endurance of 1,000,000 write/erase cycles (typical) at VDD = 1.8–5.5 V. It supports background operation (BGO), allowing CPU code execution from program memory during data flash rewriting - essential for continuous logging in energy meters or firmware update staging in industrial gateways.
What debug and programming interfaces are available on the R5F104LCGFA#50?
The R5F104LCGFA#50 supports on-chip debugging via the single-wire debug interface (SWD) using pins P40 (TOOL0) and P41 (TRJIO0), compliant with Renesas E2 emulator and CS+ IDE. It also features full self-programming capability with boot swapping and flash shield window protection, enabling secure in-system firmware updates without external programmers or JTAG adapters.
Is the R5F104LCGFA#50 pin-compatible with other RL78/G14 variants in the same package?
Yes, all RL78/G14 devices in the 64-pin LQFP-0.65 mm package - including R5F104LCGFA#50, R5F104LGFA#50, and R5F104LJGFA#50 - share identical pinouts and electrical characteristics. This allows hardware reuse across memory variants and simplifies design migration. However, firmware must be verified for memory map alignment, especially when upgrading from 384 KB to 512 KB flash configurations.
R5F104LCGFA#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RL78/G14
- Packaging:
- Tape & Reel (TR)
- 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):
- 2.4V ~ 5.5V
- Data Converters:
- A/D 12x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F104LCGFA#50 FAQ
1.How can I place an order for R5F104LCGFA#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104LCGFA#50 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 R5F104LCGFA#50 reliable?
The price and inventory of R5F104LCGFA#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104LCGFA#50 is usually 5 days.
3.What payment methods are accepted for R5F104LCGFA#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104LCGFA#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104LCGFA#50?
R5F104LCGFA#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104LCGFA#50 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 R5F104LCGFA#50?
For technical support, including R5F104LCGFA#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104LCGFA#50 requirements.
6.How does Aetrix verify that R5F104LCGFA#50 is sourced from the original manufacturer or authorized distributors?
All R5F104LCGFA#50 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 R5F104LCGFA#50 meets industry standards.
7.What is the process for return or replacement of R5F104LCGFA#50?
All R5F104LCGFA#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104LCGFA#50, 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 R5F104LCGFA#50 part is unused and in its original packaging.
Return procedure for R5F104LCGFA#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F104LCGFA#50 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…

