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Renesas R5F104LHAFB#V0
- Part No.:
- R5F104LHAFB#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F104LHAFB#V0.pdf
- Description:
- IC MCU 16BIT 192KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,696
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Product details
Overview
R5F104LHAFB#V0 from Renesas is a 64-pin LFQFP (10 × 10 mm, 0.5 mm pitch), industrial-grade RL78/G14 microcontroller with 128 KB flash, 16 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 industrial sensors and motor control interfaces requiring integrated analog peripherals and LIN-capable UART.
For engineers reviewing the R5F104LHAFB#V0 datasheet, R5F104LHAFB#V0 pinout, R5F104LHAFB#V0 application, or R5F104LHAFB#V0 equivalent, key selection criteria include its 64-pin LFQFP-0.5mm package, 128 KB/16 KB/8 KB memory partitioning, 20-channel 10-bit ADC with internal reference, dual UARTs (one LIN-compliant), and real-time clock with calendar function.
Technical Context
The R5F104LHAFB#V0 implements the RL78 CPU core-a CISC architecture 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 interrupt-triggered memory transfers and an Event Link Controller (ELC) enabling hardware-triggered peripheral chaining without CPU intervention.
Its analog subsystem includes a 10-bit ADC with 20 input channels, internal 1.45 V reference, and temperature sensor; an 8-bit DAC with two output channels; and up to two comparators with window/high-speed/low-speed modes. Serial connectivity comprises three CSI (SPI-compatible), four UART/LIN channels, and up to ten I²C interfaces-configured via peripheral I/O redirection registers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 44 DMIPS @ 32 MHz |
| Flash / RAM / Data Flash | 128 KB code flash, 16 KB on-chip RAM, 8 KB data flash with 1M rewrite cycles |
| Supply Voltage | 1.6–5.5 V operation enables direct battery interface (e.g., 2×AA, Li-ion, or 3.3 V rail) |
| ADC | 10-bit resolution, 20-channel input, internal 1.45 V reference, and integrated 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× CSI (SPI-compatible), 4× UART (1× LIN-compliant), 10× I²C/simplified I²C |
| Power Modes | HALT (core stop), STOP (peripherals off), SNOOZE (selective peripheral wake-up), 0.60 μA RTC+LVD |
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 oscillator input | Connects to 32.768 kHz tuning-fork crystal for RTC accuracy and low-power clock source |
| P122 / X2 / EXCLK | Crystal oscillator output / external clock input | Drives 32.768 kHz crystal; also accepts external clock signal for bypass mode |
| P137 / INTP0 | External interrupt input | Dedicated edge-sensitive interrupt pin for fast system wake-up or event capture |
| P16 / TI01/TO01/INTP5/TRDIOC0/IVREF0/(RXD0) | Multi-function I/O | Configurable as timer input/output, interrupt, DTC trigger, ADC reference, or UART RX (shared) |
| P17 / TI02/TO02/TRDIOA0/TRDCLK/IVCMP0/(TXD0) | Multi-function I/O | Supports timer I/O, DTC trigger, DAC clock, comparator input, or UART TX (shared) |
| P60 / SCLA0 | I²C bus clock line | Primary I²C channel clock; supports standard/fast-mode (100/400 kHz) and multi-master arbitration |
| P61 / SDAA0 | I²C bus data line | Primary I²C channel data; open-drain, compatible with 1.8–5.5 V logic levels |
| REGC | Regulator capacitor terminal | Must connect 0.47–1 μF capacitor to VSS for internal voltage regulator stability |
Key Features
| Feature | Design Value |
|---|---|
| Self-programming flash | Boot swap and flash shield window functions enable secure firmware updates without external programmer |
| Background data flash rewrite | BGO allows full CPU execution from program memory while rewriting 8 KB data flash (1M cycle endurance) |
| Peripheral I/O redirection | PIOR0/PIOR1 registers remap up to 12 peripheral functions to alternate pins-reducing PCB layout constraints |
| Low-voltage detection (LVD) | 14 programmable threshold levels (1.6–4.5 V) with selectable interrupt or reset response |
| Real-time clock (RTC) | Calendar function (99-year range), alarm, and automatic clock correction-operates in STOP mode |
| Event Link Controller (ELC) | Hardware linking of 19–26 event sources to peripherals eliminates CPU polling overhead and latency |
Applications
| Industrial Sensor Node | Smart Thermostat Control |
|---|---|
|
Use Scenario: Battery-powered wireless temperature/humidity/pressure node with local display and BLE gateway interface. IC Role / Device Role / Timing Role: Main system controller managing sensor acquisition (ADC), display driver (PWM buzzer/LED), serial comms (UART to BLE module), and RTC-based wakeup scheduling. Use Value: 0.60 μA STOP mode extends 2×AA battery life beyond 5 years; 10-bit ADC with internal reference eliminates external precision voltage source. |
Use Scenario: Residential HVAC control panel with touch interface, ambient sensing, and modulating valve actuation. IC Role / Device Role / Timing Role: Central MCU handling capacitive touch scan (comparator + ADC), fan speed control (16-bit PWM), and communication with furnace via LIN bus. Use Value: Integrated LIN-compliant UART reduces BOM count; 20-channel ADC supports multiple thermistors and air quality sensors without multiplexer. |
| Motor Drive Interface | Programmable Logic Controller (PLC) I/O Module |
|
Use Scenario: Compact BLDC motor controller for small appliances with hall-effect commutation and current monitoring. IC Role / Device Role / Timing Role: Real-time motor timing engine using TAU timers for precise 6-step commutation, ADC for phase current sampling, and DAC for analog setpoint reference. Use Value: 44 DMIPS at 32 MHz ensures sub-μs loop timing; SNOOZE mode enables fast wake-on-fault while minimizing idle power. |
Use Scenario: DIN-rail mounted digital I/O expansion module for industrial PLCs with isolated inputs/outputs and Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Protocol handler and isolation interface controller managing RS-485 transceiver (UART), opto-isolator drivers (GPIO), and watchdog supervision. Use Value: Dual UARTs allow simultaneous Modbus RTU and debug port; 64-pin LFQFP provides ample GPIO for LED status indicators and configuration jumpers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104LGAFB#V0 | Same 64-pin LFQFP package, but 96 KB flash, 12 KB RAM, 8 KB data flash | Suitable for cost-sensitive designs with reduced firmware footprint and fewer runtime variables | Select when application code size stays under 96 KB and RAM usage remains ≤12 KB |
| R5F104LJAFB#V0 | Same package and memory (128 KB/16 KB/8 KB), but rated for −40°C to +105°C (G-grade) | Required for under-hood automotive or high-temperature industrial enclosures | Choose only if ambient operating temperature exceeds +85°C; otherwise, R5F104LHAFB#V0 offers identical functionality at lower cost |
Compared with R5F104LGAFB#V0, the R5F104LHAFB#V0 provides 32 KB more flash and 4 KB more RAM for complex control algorithms or larger protocol stacks; compared with R5F104LJAFB#V0, it trades extended temperature rating for lower unit cost in standard industrial environments.
Availability
R5F104LHAFB#V0 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat control systems, and motor drive interfaces requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for R5F104LHAFB#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, power, and SoC solutions for industrial, automotive, and enterprise applications.
The RL78/G14 family is designed for ultra-low-power general-purpose embedded control-balancing performance, integration, and energy efficiency in space-constrained industrial and consumer devices.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F104LHAFB#V0?
The R5F104LHAFB#V0 achieves a maximum operating frequency of 32 MHz using its high-speed on-chip oscillator, delivering 44 DMIPS of processing performance. This rating is measured per the EEMBC CoreMark benchmark and reflects sustained throughput under typical code execution patterns-not peak burst capability.
Does the R5F104LHAFB#V0 support LIN bus communication, and which UART channel implements it?
Yes, the R5F104LHAFB#V0 supports LIN bus communication via its UART2 channel (pins P13/TxD2 and P14/RxD2). The hardware includes LIN-specific features such as automatic sync field detection, checksum calculation, and break signal generation-enabling compliance with LIN 2.2A specifications without software overhead.
How many analog input channels does the 10-bit ADC in the R5F104LHAFB#V0 support, and are internal references available?
The R5F104LHAFB#V0 integrates a 10-bit successive-approximation ADC with up to 20 analog input channels. It provides an internal 1.45 V reference voltage and an integrated temperature sensor, eliminating the need for external reference ICs in most precision sensing applications.
What packaging and temperature grade does the R5F104LHAFB#V0 use, and what does the "#V0" suffix indicate?
The R5F104LHAFB#V0 uses a 64-pin LFQFP package with 0.5 mm pitch and is qualified for industrial temperature operation (−40°C to +85°C). The "#V0" suffix denotes tray packaging per Renesas specification, indicating standard bulk shipment format for surface-mount assembly lines.
Can the R5F104LHAFB#V0 perform background data flash writes while executing application code from main flash memory?
Yes, the R5F104LHAFB#V0 supports Background Operation (BGO) for data flash. While rewriting its 8 KB data flash memory-including wear-leveling and erase/write sequences-the CPU can concurrently execute instructions from the main code flash memory without interruption or performance penalty.
R5F104LHAFB#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RL78/G14
- Packaging:
- Tray
- 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:
- 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:
R5F104LHAFB#V0 FAQ
1.How can I place an order for R5F104LHAFB#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104LHAFB#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 R5F104LHAFB#V0 reliable?
The price and inventory of R5F104LHAFB#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104LHAFB#V0 is usually 5 days.
3.What payment methods are accepted for R5F104LHAFB#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104LHAFB#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104LHAFB#V0?
R5F104LHAFB#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104LHAFB#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 R5F104LHAFB#V0?
For technical support, including R5F104LHAFB#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104LHAFB#V0 requirements.
6.How does Aetrix verify that R5F104LHAFB#V0 is sourced from the original manufacturer or authorized distributors?
All R5F104LHAFB#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 R5F104LHAFB#V0 meets industry standards.
7.What is the process for return or replacement of R5F104LHAFB#V0?
All R5F104LHAFB#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104LHAFB#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 R5F104LHAFB#V0 part is unused and in its original packaging.
Return procedure for R5F104LHAFB#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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