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Renesas R5F104LEAFA#30
- Part No.:
- R5F104LEAFA#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F104LEAFA#30.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:519
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Product details
Overview
R5F104LEAFA#30 from Renesas is a 64-pin LQFP-0.65 mm pitch, 48 KB flash, 5.5 KB RAM RL78/G14 16-bit microcontroller operating from 1.6 V to 5.5 V, delivering 44 DMIPS at 32 MHz with ultra-low-power HALT/STOP/SNOOZE modes (66 μA/MHz active, 0.60 μA RTC+LVD), used in industrial sensor nodes and battery-powered control modules.
For engineers reviewing the R5F104LEAFA#30 datasheet, R5F104LEAFA#30 pinout, R5F104LEAFA#30 application, or R5F104LEAFA#30 equivalent, key selection considerations include its 64-pin LQFP-0.65 mm package, 48 KB code flash + 4 KB data flash, 10-bit 20-channel ADC, dual UART/LIN support, and -40°C to +85°C industrial temperature grade (A-field).
Technical Context
The R5F104LEAFA#30 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), and includes multiply/divide/accumulate instructions within a 1 MB address space. It integrates a 12-bit interval timer, real-time clock with calendar/alarm, and watchdog timer driven by dedicated low-speed oscillator.
Peripheral integration includes 8–12 channels of 16-bit timers (TAU, RJ, RD, RG), up to 10-channel I²C/simplified I²C, 3–4 UART/LIN interfaces, 3–8 CSI/SPI channels, and event-link controller (ELC) enabling hardware-triggered peripheral chaining without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline, 44 DMIPS @ 32 MHz |
| Flash / Data Flash | 48 KB code flash + 4 KB data flash with background operation (BGO) and 1M rewrite cycles |
| RAM | 5.5 KB on-chip RAM, including dedicated areas for flash library self-programming |
| ADC | 10-bit resolution, 20 analog input channels, internal 1.45 V reference and temperature sensor |
| Operating Voltage / Temp | 1.6 V to 5.5 V supply; -40°C to +85°C ambient (A-field industrial grade) |
| Low-Power Modes | HALT (66 μA/MHz), STOP (0.60 μA with RTC+LVD), SNOOZE (fast wake-up with peripheral pre-operation) |
| Package | 64-pin LQFP, 12 × 12 mm, 0.65 mm pitch (PLQP0064JA-A code) |
Pinout & Package
64-pin plastic LQFP package (12 × 12 mm, 0.65 mm pitch), RoHS-compliant, with exposed thermal pad option per variant - this R5F104LEAFA#30 uses standard LQFP without exposed pad.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART1 transmit; 16-bit timer input; trace clock A for debug |
| P01 | RxD1 / TO00 / TRGCLKB | Primary UART1 receive; 16-bit timer output; trace clock B for debug |
| P10–P17 | SPI/I²C/UART/Timer I/O group | Configurable multi-function pins supporting CSI0/1/2, I²C0/1/2, UART2, and TAU timer I/O |
| P121 / P122 | X1 / X2 | Crystal oscillator inputs for main system clock (up to 32 MHz) or sub-clock (32.768 kHz) |
| P137 | INTP0 | External interrupt input 0, edge-selectable, supports wake-up from STOP mode |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; accepts external reset signal or POR/LVD assertion |
| VDD / VSS | Power / Ground | Dual VDD/VSS pairs for noise isolation; REGC capacitor required (0.47–1 µF to VSS) |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 66 μA/MHz active current enables >10-year battery life in sensor nodes with periodic wake-up |
| Data flash BGO | Background rewriting allows uninterrupted program execution during firmware updates or parameter logging |
| Event Link Controller (ELC) | Hardware-peripheral chaining eliminates CPU overhead for time-critical sequences (e.g., ADC→DMA→UART) |
| On-chip debug & security | Fully integrated on-chip debug interface with flash shield window and block erase prohibition |
| Multi-voltage I/O | Supports 1.8 V/2.5 V/3.3 V logic interfacing without level shifters via configurable I/O voltage tolerance |
Applications
| Industrial Motor Control | Smart Energy Metering |
|---|---|
|
Use Scenario: Compact BLDC motor driver with Hall-sensor feedback and commutation logic in HVAC blowers. IC Role / Device Role / Timing Role: Main control MCU executing FOC algorithms, managing PWM generation via TAU timers, and handling LIN communication to master controller. Use Value: 44 DMIPS compute headroom and 16-bit timer precision enable <5 µs PWM dead-time control; 0.60 μA STOP mode extends standby duration between cycles. |
Use Scenario: DIN-rail mounted electricity meter with pulse counting, tariff switching, and RS-485 backhaul. IC Role / Device Role / Timing Role: System-on-chip managing metrology ADC sampling, RTC-based tariff scheduling, and isolated UART communication. Use Value: Integrated 10-bit 20-channel ADC with internal reference eliminates external precision references; RTC calendar function supports multi-tariff billing without host processor. |
| Home Appliance UI Controller | Wireless Sensor Node Hub |
|
Use Scenario: Touch-enabled oven control panel with display backlight dimming and safety interlock monitoring. IC Role / Device Role / Timing Role: Dedicated UI MCU scanning capacitive touch keys, driving LED segments, and validating door latch signals via GPIO/interrupts. Use Value: On-chip key interrupt and buzzer output controller reduce BOM count; SNOOZE mode enables <100 µs wake-from-sleep response to touch events. |
Use Scenario: Battery-powered environmental node aggregating temperature/humidity/CO₂ data before BLE transmission. IC Role / Device Role / Timing Role: Central aggregator MCU reading sensors via I²C, logging to data flash, and triggering BLE SoC on threshold breach. Use Value: 4 KB data flash with 1M rewrite cycles supports 5+ years of hourly logging; 66 μA/MHz active power minimizes energy per sample. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104LEAFB#30 | Same core, flash, RAM; LFQFP-0.5 mm (7×7 mm) package instead of LQFP-0.65 mm (12×12 mm) | Requires PCB redesign due to smaller footprint and finer pitch; better for space-constrained designs | Select when board area is critical and re-layout is acceptable; identical firmware compatibility |
| R5F104LGAFP#V0 | 256 KB flash, 24 KB RAM, same 64-pin LQFP-0.8 mm package; higher memory and temp grade (-40°C to +105°C, G-field) | Targeted for extended-temp industrial automation where firmware growth or ambient extremes exceed A-field limits | Choose when future firmware expansion or harsher environments are anticipated; pin-compatible but larger footprint |
Compared with R5F104LEAFA#30, R5F104LEAFB#30 offers identical functionality in a denser package requiring layout change, while R5F104LGAFP#V0 provides scalable memory and extended temperature range in a mechanically distinct LQFP-0.8 mm variant - neither is drop-in compatible, but both share the RL78/G14 toolchain and peripheral register map.
Availability
R5F104LEAFA#30 is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, and home appliance UI applications requiring stable component supply across multi-year production cycles.
Supply support for R5F104LEAFA#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, 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 industrial and consumer applications demanding long battery life, robust peripherals, and seamless toolchain integration.
FAQ
What is the maximum operating frequency and corresponding performance of the R5F104LEAFA#30?
The R5F104LEAFA#30 achieves a maximum operating frequency of 32 MHz using the high-speed on-chip oscillator, delivering 44 DMIPS of processing performance. Its minimum instruction execution time is 0.03125 µs at this speed, and it supports dynamic clock scaling down to 32.768 kHz for ultra-low-power RTC operation with 30.5 µs instruction time. This flexibility enables precise trade-offs between throughput and energy consumption in real-time control loops.
Does the R5F104LEAFA#30 support LIN bus communication, and how is it implemented?
Yes, the R5F104LEAFA#30 supports LIN bus communication through its UART peripherals - specifically UART0, UART1, and UART2 - all of which include built-in LIN-break detection and sync-byte handling per LIN 2.x specifications. The UART modules can operate in LIN master or slave mode, and the Event Link Controller (ELC) allows automatic frame transmission triggered by timer or ADC events without CPU involvement.
What are the flash memory configuration and programming capabilities of the R5F104LEAFA#30?
The R5F104LEAFA#30 contains 48 KB of code flash memory organized in 1 KB blocks and 4 KB of data flash memory. It supports self-programming with boot swapping, flash shield window protection, and block erase prohibition for security. Data flash supports background operation (BGO), allowing code execution from program memory while rewriting - essential for over-the-air updates and nonvolatile parameter storage with 1,000,000 write cycles rated.
How does the R5F104LEAFA#30 manage power in battery-operated systems?
The R5F104LEAFA#30 employs multiple low-power states: HALT mode draws 66 μA/MHz, STOP mode consumes just 0.60 μA while maintaining RTC and LVD operation, and SNOOZE mode enables selective peripheral activation before full wake-up. Its 1.6 V to 5.5 V operating range supports direct alkaline or Li-ion battery input, and the on-chip voltage detector (LVD) provides 14 selectable reset/interrupt thresholds for brown-out protection without external components.
Is the R5F104LEAFA#30 pin-compatible with other RL78/G14 variants, and what package options exist?
The R5F104LEAFA#30 uses a 64-pin LQFP package with 0.65 mm pitch (PLQP0064JA-A). It is not pin-compatible with RL78/G14 variants in LFQFP-0.5 mm or LQFP-0.8 mm packages - e.g., R5F104LEAFB#30 (LFQFP) and R5F104LGAFP#V0 (LQFP-0.8 mm) have different pinouts and mechanical dimensions. However, all RL78/G14 devices share identical peripheral register mapping and software compatibility within the same memory/peripheral configuration group.
R5F104LEAFA#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:
R5F104LEAFA#30 FAQ
1.How can I place an order for R5F104LEAFA#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104LEAFA#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 R5F104LEAFA#30 reliable?
The price and inventory of R5F104LEAFA#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104LEAFA#30 is usually 5 days.
3.What payment methods are accepted for R5F104LEAFA#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104LEAFA#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104LEAFA#30?
R5F104LEAFA#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104LEAFA#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 R5F104LEAFA#30?
For technical support, including R5F104LEAFA#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104LEAFA#30 requirements.
6.How does Aetrix verify that R5F104LEAFA#30 is sourced from the original manufacturer or authorized distributors?
All R5F104LEAFA#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 R5F104LEAFA#30 meets industry standards.
7.What is the process for return or replacement of R5F104LEAFA#30?
All R5F104LEAFA#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104LEAFA#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 R5F104LEAFA#30 part is unused and in its original packaging.
Return procedure for R5F104LEAFA#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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