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Renesas R5F104LEAFB#30
- Part No.:
- R5F104LEAFB#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F104LEAFB#30.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:774
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Product details
Overview
R5F104LEAFB#30 from Renesas is a 64-pin LFQFP (10 × 10 mm, 0.5 mm pitch), industrial-grade RL78/G14 16-bit MCU with 48 KB flash, 5.5 KB RAM, and 4 KB data flash. It operates from 1.6–5.5 V, delivers 44 DMIPS at 32 MHz, and supports ultra-low-power modes (0.60 μA in RTC+LVD mode). It targets embedded control in HVAC controllers, smart meters, and industrial sensor nodes.
For engineers reviewing the R5F104LEAFB#30 datasheet, R5F104LEAFB#30 pinout, R5F104LEAFB#30 application, or R5F104LEAFB#30 equivalent, key selection criteria include its 64-pin LFQFP-0.5mm package, integrated 10-bit ADC (16 channels), dual UART/LIN support, and hardware DTC/ELC for deterministic peripheral coordination in resource-constrained real-time systems.
Technical Context
The R5F104LEAFB#30 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), and includes multiply/divide/accumulate instructions. Its memory subsystem integrates 48 KB on-chip code flash (1 KB block size), 5.5 KB RAM, and 4 KB data flash with background operation (BGO) and 1M-cycle rewrite endurance.
Peripheral integration includes Timer Array Unit (TAU) with 8 channels, 1-channel real-time clock with calendar/alarm, 1-channel watchdog timer, 16-channel 10-bit ADC with internal reference, and serial interfaces: 3 UART/LIN channels, 4 CSI (SPI-compatible), and 4 I²C channels - all configurable via Event Link Controller (ELC) for interrupt-free event chaining.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline; enables deterministic timing and low-power mixed-signal control. |
| Max Operating Frequency | 32 MHz (44 DMIPS); sufficient for real-time motor control loops and protocol stacks without external acceleration. |
| Flash / Data Flash / RAM | 48 KB / 4 KB / 5.5 KB; supports secure boot swapping, flash shield window, and BGO for firmware updates during operation. |
| Supply Voltage 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 | HALT (66 μA/MHz), STOP (0.60 μA), SNOOZE; enables battery-powered operation for >10 years in metering applications. |
| Analog Peripherals | 10-bit ADC (16 ch, internal 1.45 V ref), 8-bit DAC (2 ch), 2 comparators; supports closed-loop analog sensing and actuation. |
| Serial Interfaces | 3× UART/LIN, 4× CSI, 4× I²C; provides native LIN bus compliance and multi-drop sensor networking capability. |
Pinout & Package
Package: 64-pin LFQFP, 10 × 10 mm body, 0.5 mm pitch, exposed pad not present (standard LFQFP).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P121 / P122 | Crystal oscillator input/output (X1/X2) | Supports 32.768 kHz RTC crystal or high-speed external clock up to 20 MHz for precise timing. |
| P30 / P31 | INTP3 / INTP4 with TI03/TO03 | Dedicated interrupt-capable timer I/O for encoder quadrature decoding or pulse-width capture. |
| P10–P15 | Multiplexed CSI/I²C/UART pins | Shared serial peripheral functions enable flexible interface assignment without PCB redesign. |
| P20–P27 | ANI0–ANI7 + AVREFP/AVREFM | 8-channel analog input bank with dedicated reference pins for ratiometric sensor measurements. |
| REGC | Internal regulator bypass capacitor terminal | Requires 0.47–1 µF ceramic cap to VSS; stabilizes on-chip voltage regulator for noise-immune analog operation. |
Key Features
| Feature | Design Value |
|---|---|
| Event Link Controller (ELC) | Links 19–26 peripheral events (e.g., ADC EOC → DMA trigger) without CPU intervention, reducing latency and ISR overhead. |
| Data Transfer Controller (DTC) | Hardware-accelerated memory transfers with chain mode; offloads UART/ADC data movement from CPU during active communication. |
| Real-time Clock (RTC) | Full calendar (99-year range), alarm, and clock correction; maintains accurate timekeeping across STOP mode with <0.5 ppm drift. |
| On-chip Debug & Security | Firmware protection via flash block erase prohibition and debug lock; supports production programming with boot swapping. |
| Multi-Voltage I/O | GPIOs tolerate 1.8/2.5/3.0 V logic levels while powered from 1.6–5.5 V supply; eliminates external level translators in mixed-voltage systems. |
Applications
| Smart Energy Metering | HVAC Control Unit |
|---|---|
|
Use Scenario: Residential electricity meter with tariff switching, tamper detection, and RS-485 communication. IC Role / Device Role / Timing Role: Main system controller managing metrology ADC sampling, RTC-based billing cycles, and LIN/UART protocol stacks. Use Value: 4 KB data flash stores 30+ days of consumption logs with BGO; 0.60 μA STOP mode extends battery backup life beyond 10 years. |
Use Scenario: Wall-mounted thermostat with temperature/humidity sensing, fan speed control, and Zigbee coexistence. IC Role / Device Role / Timing Role: Real-time environmental controller coordinating 10-bit ADC reads, PWM fan drive, and UART-to-Zigbee bridge. Use Value: ELC synchronizes ADC conversion completion with DTC-triggered UART transmit, eliminating polling and reducing CPU load by 40%. |
| Industrial Sensor Node | Appliance Motor Control |
|
Use Scenario: Wireless vibration sensor node monitoring pump health in factory automation. IC Role / Device Role / Timing Role: Edge signal processor acquiring accelerometer data via SPI, performing FFT preprocessing, and triggering BLE wake-up. Use Value: SNOOZE mode enables periodic 10 ms wake-ups for sensor readout while consuming <2.5 μA average current. |
Use Scenario: Brushless DC motor driver in washing machine with hall-effect commutation and overcurrent protection. IC Role / Device Role / Timing Role: Timing-critical motor sequencer using TAU timers for 6-step commutation and ADC-based current feedback. Use Value: 32 MHz core + 0.03125 µs min instruction time ensures sub-microsecond PWM dead-time control accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104LGAFB#30 | Same package, 128 KB flash, 12 KB RAM, 8 KB data flash | Higher memory headroom for OTA firmware updates and larger protocol stacks (e.g., Modbus TCP) | Select when future firmware expansion or dual-bank secure boot is required; same pinout and footprint. |
| R5F104LEAFP#30 | LQFP-0.8 mm pitch (14 × 14 mm), identical memory/peripherals | Easier hand-soldering and rework; lower assembly cost in low-volume prototyping | Choose for NPI validation or small-batch production where 0.5 mm pitch assembly is unavailable. |
Compared with R5F104LGAFB#30, the R5F104LEAFB#30 trades flash/RAM capacity for lower BOM cost and smaller PCB area; versus R5F104LEAFP#30, it offers higher board density at the expense of tighter assembly tolerances - both retain identical peripheral sets and software compatibility.
Availability
R5F104LEAFB#30 is available at Aetrix Electronics and suitable for smart metering, HVAC control, and industrial sensor node designs requiring stable component supply, long-term lifecycle assurance, and industrial-temperature (-40°C to +85°C) operation.
Supply support for R5F104LEAFB#30 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 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 energy-regulated applications - combining ultra-low active/idle current with rich analog and communication peripherals.
FAQ
What is the maximum operating frequency and core performance of the R5F104LEAFB#30?
The R5F104LEAFB#30 operates at up to 32 MHz with the RL78 CPU core, delivering 44 DMIPS. Its 3-stage pipeline supports minimum instruction execution times from 0.03125 µs (at 32 MHz with high-speed oscillator) down to 30.5 µs (at 32.768 kHz), enabling both high-speed control loops and ultra-low-power RTC operation. This performance is fully specified across the full -40°C to +85°C industrial temperature range.
Does the R5F104LEAFB#30 support LIN bus communication, and how is it implemented?
Yes, the R5F104LEAFB#30 supports LIN bus communication through its UART peripherals - specifically UART0, UART1, and UART2 - all of which include LIN break-detection and sync-field generation hardware. The device meets ISO 17987-4 physical layer requirements when paired with an external LIN transceiver, and its ELC allows automatic frame transmission/reception without CPU involvement, reducing jitter and ISR latency in automotive body-control modules.
What are the memory configuration and data retention specifications for the R5F104LEAFB#30?
The R5F104LEAFB#30 integrates 48 KB of code flash memory (1 KB erase blocks), 4 KB of data flash memory, and 5.5 KB of RAM. The data flash supports background operation (BGO), allowing program execution during write/erase cycles, and guarantees 1,000,000 write/erase cycles at VDD = 1.8–5.5 V. Data retention is rated for 20 years at +85°C and indefinite at lower temperatures per JEDEC JESD22-A117.
How does the R5F104LEAFB#30 achieve ultra-low power consumption in STOP mode?
The R5F104LEAFB#30 achieves 0.60 μA typical current in STOP mode by powering down the CPU, flash, and most peripherals while retaining operation of the real-time clock (RTC), low-voltage detector (LVD), and RAM contents. This mode is enabled via software control and supports wake-up via external interrupt, RTC alarm, or LVD threshold crossing - making it ideal for infrequent-event applications like utility meter wake-on-pulse.
Is the R5F104LEAFB#30 pin-compatible with other RL78/G14 variants in the same package?
Yes, the R5F104LEAFB#30 is pin-compatible with all other RL78/G14 devices in the 64-pin LFQFP-0.5 mm package (e.g., R5F104LGAFB#30, R5F104LHAFB#30), sharing identical pin functions, electrical characteristics, and thermal behavior. Firmware and PCB layouts can be reused across this package family, enabling scalable memory selection without hardware revision.
R5F104LEAFB#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RL78/G14
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- 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:
R5F104LEAFB#30 FAQ
1.How can I place an order for R5F104LEAFB#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104LEAFB#30 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 R5F104LEAFB#30 reliable?
The price and inventory of R5F104LEAFB#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104LEAFB#30 is usually 5 days.
3.What payment methods are accepted for R5F104LEAFB#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104LEAFB#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104LEAFB#30?
R5F104LEAFB#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104LEAFB#30 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 R5F104LEAFB#30?
For technical support, including R5F104LEAFB#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104LEAFB#30 requirements.
6.How does Aetrix verify that R5F104LEAFB#30 is sourced from the original manufacturer or authorized distributors?
All R5F104LEAFB#30 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 R5F104LEAFB#30 meets industry standards.
7.What is the process for return or replacement of R5F104LEAFB#30?
All R5F104LEAFB#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104LEAFB#30, 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 R5F104LEAFB#30 part is unused and in its original packaging.
Return procedure for R5F104LEAFB#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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