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Renesas R5F104LHALA#U0
- Part No.:
- R5F104LHALA#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-WFLGA
- Datasheet:
-
R5F104LHALA#U0.pdf
- Description:
- IC MCU 16BIT 192KB FLASH 64FLGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,211
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Product details
Overview
R5F104LHALA#U0 from Renesas is a 64-pin, 512 KB flash, 8 KB data flash, 20 KB RAM RL78/G14 16-bit microcontroller with ultra-low-power operation (66 μA/MHz active, 0.60 μA RTC+LVD mode), 1.6–5.5 V supply, and integrated peripherals including 12-channel 10-bit ADC, dual DAC, RTC, and UART/SPI/I²C interfaces - deployed in industrial sensor nodes and battery-powered control systems.
For engineers reviewing the R5F104LHALA#U0 datasheet, R5F104LHALA#U0 pinout, R5F104LHALA#U0 application, or R5F104LHALA#U0 equivalent, key selection criteria include its FLGA 5×5 mm 0.5 mm pitch package, -40°C to +105°C industrial temperature grade (G), 32 MHz max CPU speed, and hardware-accelerated data transfer controller (DTC) for deterministic low-CPU-load peripheral handling.
Technical Context
The R5F104LHALA#U0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 µs (32 MHz high-speed oscillator) to 30.5 µs (32.768 kHz subsystem clock). It integrates an Event Link Controller (ELC) enabling direct peripheral-to-peripheral event triggering without CPU intervention.
Its power management includes HALT, STOP, and SNOOZE modes, plus on-chip LVD with 14 selectable voltage thresholds and POR circuitry. The DTC supports normal, repeat, and block transfer modes activated by 19–26 interrupt sources, with chain transfer capability for multi-buffer DMA-like operations.
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 - enables 44 DMIPS performance for real-time control loop execution |
| Memory | 512 KB code flash (1 KB blocks), 8 KB data flash (1M rewrite cycles), 20 KB RAM |
| ADC | 10-bit resolution, 20-channel input, internal 1.45 V reference and temperature sensor |
| DAC | 8-bit resolution, up to two channels, output range 0 V to VDD with real-time update |
| Timers | 12× 16-bit timers (TAU/Timer RJ/RD/RG), 1× 12-bit interval timer, 1× calendar RTC, 1× watchdog |
| Serial Interfaces | 3–4 UART/LIN, 3–8 CSI (SPI-compatible), 4–10 I²C/simplified I²C channels |
Pinout & Package
Package: FLGA (Fine Pitch Land Grid Array), 64-pin, 5.0 × 5.0 mm body, 0.5 mm pitch, 0.45 mm height - suitable for space-constrained industrial PCBs requiring high I/O density and thermal efficiency via bottom-side thermal pad connection to ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART transmit; 16-bit timer input capture; trace clock A for debug synchronization |
| P01 | RxD1 / TO00 / TRGCLKB | Primary UART receive; 16-bit timer output compare; trace clock B for debug correlation |
| P10–P17 | SPI/I²C/UART/ADC/DAC multiplexed I/O | Configurable peripheral interface bank supporting simultaneous serial comms and analog acquisition |
| P20–P27 | ANI0–ANI7 / AVREFP / AVREFM / ANO0 / ANO1 | Dedicated analog input group with differential reference support for precision sensor front-ends |
| P60–P62 | SCLA0 / SDAA0 / SSI00 | I²C master/slave bus interface and synchronous serial interface for external EEPROM or codec |
| P121 / P122 | X1 / X2 | Crystal oscillator inputs for high-accuracy 32.768 kHz RTC or 1–20 MHz system clock |
| RESET | Active-low reset input | Asynchronous hardware reset with internal pull-up; compatible with external supervisor ICs |
| VDD / VSS | Power supply pins | Single 1.6–5.5 V rail; VSS connects to exposed thermal pad for thermal dissipation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power HALT/STOP/SNOOZE modes | 0.60 μA RTC+LVD retention current enables >10-year battery life in metering applications |
| On-chip data flash with background operation (BGO) | Allows full CPU execution from code flash while rewriting data flash - no interrupt latency penalty |
| Event Link Controller (ELC) | Eliminates CPU polling/interrupt overhead by routing 19–26 peripheral events directly to target modules |
| Hardware Data Transfer Controller (DTC) | Offloads memory-mapped peripheral transfers (e.g., ADC→RAM, UART→RAM) with chainable descriptors |
| Integrated voltage detector (LVD) with 14 levels | Enables precise brown-out detection and graceful shutdown at configurable thresholds (1.6–5.5 V range) |
Applications
| Industrial Sensor Node | Smart Energy Meter |
|---|---|
|
Use Scenario: Compact, battery-powered environmental sensor collecting temperature, humidity, and CO₂ with wireless telemetry. IC Role / Device Role / Timing Role: Main system controller executing sensor fusion, low-power scheduling, and UART-based sub-GHz RF module interface. Use Value: 0.60 μA STOP mode extends 2xAA battery life beyond 10 years; integrated 10-bit ADC and temperature sensor reduce BOM count by two components. |
Use Scenario: DIN-rail mounted electricity meter with metrology ASIC, tamper detection, and PLC/HPLC communication. IC Role / Device Role / Timing Role: System management MCU handling real-time clock, secure firmware updates, and isolated RS-485/LIN interface to host. Use Value: 512 KB flash accommodates dual-bank secure bootloader and field-upgradable application; LVD with 14 thresholds ensures reliable operation across wide AC line fluctuations. |
| Programmable Logic Controller (PLC) I/O Module | Automotive Body Control Unit (BCU) |
|
Use Scenario: 16-channel digital input/output expansion module for modular PLC chassis with diagnostics and isolation. IC Role / Device Role / Timing Role: Dedicated I/O processor managing opto-isolated inputs, MOSFET gate drivers, and CAN/LIN physical layer interface. Use Value: ELC enables glitch-free, cycle-accurate response to input edge events without CPU ISR latency; DTC automates status register reads and output latch writes. |
Use Scenario: Door module controlling window lift, mirror fold, and interior lighting with LIN slave connectivity. IC Role / Device Role / Timing Role: LIN-compliant slave node with PWM-controlled motor drivers and capacitive touch sensing. Use Value: Built-in LIN protocol support in UART reduces firmware complexity; 8-bit DAC drives analog backlight dimming with smooth 256-step resolution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104LLALA#U0 | Same FLGA-64 package, identical 512 KB/8 KB/20 KB memory, but rated for -40°C to +85°C (A grade) instead of +105°C (G grade) | Consumer or lower-ambient industrial use; unsuitable for under-hood or high-temp enclosure deployments | Select when ambient operating temperature remains ≤85°C and cost sensitivity outweighs extended thermal margin |
| R5F104LGAFB#30 | LQFP-48, 256 KB flash, 8 KB data flash, 24 KB RAM, 0.5 mm pitch LFQFP package - smaller memory and I/O count | Space-constrained designs needing fewer analog/digital I/Os and no RTC/calendar function | Choose for cost-optimized, lower-pin-count implementations where 256 KB flash suffices and LQFP assembly is preferred |
Compared with R5F104LHALA#U0, R5F104LLALA#U0 trades industrial-grade thermal reliability for lower cost in milder environments, while R5F104LGAFB#30 reduces footprint and memory to meet simpler control tasks - neither offers pin compatibility, but both share the RL78/G14 toolchain and peripheral register map.
Availability
R5F104LHALA#U0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meters, and programmable logic controller I/O modules requiring stable component supply, long-term lifecycle assurance, and G-grade temperature compliance.
Supply support for R5F104LHALA#U0 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 delivers true low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and thermally demanding industrial control applications - combining high integration, robust peripheral sets, and certified functional safety readiness (IEC 61508 SIL2).
FAQ
What is the operating temperature range for the R5F104LHALA#U0?
The R5F104LHALA#U0 is specified for industrial operation from -40°C to +105°C (G-grade), validated across the full range for flash read/write, ADC accuracy, oscillator stability, and I/O drive strength - critical for under-hood automotive modules and factory-floor controllers.
Does the R5F104LHALA#U0 support in-system programming via standard interfaces?
Yes, the R5F104LHALA#U0 supports in-system programming using the on-chip debug interface via dedicated TOOL0/TOOLRxD/TOOLTxD pins, compatible with Renesas E2 studio and Flash Development Toolkit - enabling field firmware updates without removing the device from the PCB.
How many UART channels does the R5F104LHALA#U0 include, and do they support LIN bus?
The R5F104LHALA#U0 integrates four UART channels, all of which support LIN 2.2/SAE J2602 protocol via built-in LIN break detection, sync field generation, and checksum calculation - eliminating need for external LIN transceivers in slave-node implementations.
What is the maximum ADC sampling rate achievable on the R5F104LHALA#U0?
The R5F104LHALA#U0 achieves up to 1.25 MSPS aggregate sampling rate across its 20-channel 10-bit ADC when using sequential scan mode with internal clock - sufficient for real-time motor current sensing and multi-sensor monitoring in closed-loop control systems.
Is the R5F104LHALA#U0 pin-compatible with other RL78/G14 variants in the same package?
No - while the R5F104LHALA#U0 shares the FLGA-64 package footprint with other R5F104xLxxx devices, pin functions are not guaranteed identical across memory or feature variants; always verify signal mapping against the specific variant's pin configuration table before PCB reuse.
R5F104LHALA#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-WFLGA
- 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:
- 192KB (192K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 20K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 12x8/10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F104LHALA#U0 FAQ
1.How can I place an order for R5F104LHALA#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104LHALA#U0 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 R5F104LHALA#U0 reliable?
The price and inventory of R5F104LHALA#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104LHALA#U0 is usually 5 days.
3.What payment methods are accepted for R5F104LHALA#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104LHALA#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104LHALA#U0?
R5F104LHALA#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104LHALA#U0 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 R5F104LHALA#U0?
For technical support, including R5F104LHALA#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104LHALA#U0 requirements.
6.How does Aetrix verify that R5F104LHALA#U0 is sourced from the original manufacturer or authorized distributors?
All R5F104LHALA#U0 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 R5F104LHALA#U0 meets industry standards.
7.What is the process for return or replacement of R5F104LHALA#U0?
All R5F104LHALA#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104LHALA#U0, 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 R5F104LHALA#U0 part is unused and in its original packaging.
Return procedure for R5F104LHALA#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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