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Renesas R5F104LJAFB#30
- Part No.:
- R5F104LJAFB#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F104LJAFB#30.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:330
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Product details
Overview
R5F104LJAFB#30 from Renesas is a 64-pin LFQFP (10 × 10 mm, 0.5 mm pitch), industrial-grade RL78/G14 16-bit MCU with 192 KB flash, 8 KB data flash, 20 KB RAM, and operation from −40°C to +85°C. It integrates a 32 MHz RL78 CPU core delivering 44 DMIPS, ultra-low power modes (66 μA/MHz active, 0.60 μA RTC+LVD), and peripherals including 12-channel 10-bit ADC, dual UART/LIN, I²C, CSI, RTC, and watchdog timer - deployed in motor control and sensor interface modules.
For engineers reviewing the R5F104LJAFB#30 datasheet, R5F104LJAFB#30 pinout, R5F104LJAFB#30 application, or R5F104LJAFB#30 equivalent, key selection criteria include its 64-pin LFQFP-0.5mm package compatibility, 192 KB flash/data flash co-location for firmware+parameter storage, and verified support for LIN bus communication in automotive body electronics.
Technical Context
The R5F104LJAFB#30 implements the RL78 CPU core with CISC architecture, 3-stage pipeline, and configurable instruction timing (0.03125 µs min @ 32 MHz). It supports on-chip debug, self-programming with boot swapping, and flash shield window protection.
Its peripheral set includes Timer Array Unit (TAU) with 8 channels, Real-time Clock with calendar/alarm, 12-bit interval timer, and Event Link Controller (ELC) enabling hardware-triggered peripheral chaining without CPU intervention - critical for deterministic sensor sampling and actuator timing in industrial automation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU, 44 DMIPS @ 32 MHz - enables real-time control loop execution within sub-100 µs windows |
| Flash Memory | 192 KB code flash + 8 KB data flash - supports firmware updates and nonvolatile parameter storage in same die |
| RAM | 20 KB on-chip RAM - sufficient for RTOS stacks, communication buffers, and sensor fusion variables |
| Supply Voltage | 1.6 V to 5.5 V - allows direct interface with 3.3 V and 5 V logic, battery-backed operation down to 1.6 V |
| Power Consumption | 66 μA/MHz active, 0.60 μA in STOP mode with RTC+LVD - extends battery life in portable diagnostics tools |
| ADC | 10-bit resolution, up to 20 channels, internal 1.45 V reference - eliminates external voltage reference for precision analog sensing |
| Temperature Range | −40°C to +85°C (Industrial D grade) - qualified for under-hood and factory-floor environments |
Pinout & Package
Package: 64-pin LFQFP (10 × 10 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P121 / X1 | Crystal oscillator input | Connects to 32.768 kHz tuning-fork crystal for RTC accuracy ±20 ppm; requires external load capacitors |
| P122 / X2 / EXCLK | Crystal oscillator output / external clock input | Drives 32.768 kHz crystal; alternatively accepts external clock source for synchronous system timing |
| P137 / INTP0 | External interrupt input | Dedicated wake-up pin with configurable edge sensitivity - used for emergency stop detection in motor drives |
| P30 / INTP3 / RTC1HZ / SCK00 / SCL00 | Multiplexed interrupt/timer/clock pin | Provides 1 Hz RTC output signal and I²C/SPI clock - simplifies time-stamped sensor logging without GPIO toggling |
| P60 / SCLA0 | I²C serial clock line | Primary I²C bus clock for EEPROM, temperature sensors, or PMIC configuration - supports standard/fast-mode speeds |
| P61 / SDAA0 | I²C serial data line | Primary I²C bus data line with open-drain output and internal pull-up option - reduces BOM count in compact designs |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; compatible with external supervisor ICs for brown-out recovery |
| REGC | Regulator bypass capacitor terminal | Requires 0.47–1 µF ceramic capacitor to VSS for stable internal LDO operation - critical for ADC noise performance |
Key Features
| Feature | Design Value |
|---|---|
| SNOOZE mode with background data flash rewrite | Enables firmware patching during runtime without halting main application - essential for field-upgradable industrial controllers |
| Event Link Controller (ELC) | Hardware routing of 19–26 event signals (e.g., ADC EOC → TAU trigger) eliminates CPU polling overhead and jitter |
| On-chip voltage detector (LVD) | 14 programmable threshold levels (1.6–4.5 V) with interrupt/reset options - ensures safe shutdown before brownout corruption |
| Real-time clock with calendar | 99-year calendar, alarm, and auto-correction - provides timestamping for data loggers without external RTC IC |
| UART with LIN bus support | Fully compliant LIN 2.2 physical layer with automatic sync-break detection - reduces component count in automotive body networks |
| Peripheral I/O redirection registers | Dynamic remapping of up to 8 peripheral functions across multiple pins - increases PCB layout flexibility and reuse |
Applications
| Motor Control Interface | Industrial Sensor Hub |
|---|---|
|
Use Scenario: Compact BLDC motor driver board requiring position feedback, current sensing, and LIN communication to ECU. IC Role / Device Role / Timing Role: Main controller executing FOC algorithm, managing ADC sampling at 100 kSPS, and generating PWM via TAU with dead-time insertion. Use Value: Integrated 10-bit ADC with internal reference and 8-channel analog inputs eliminate external signal conditioning; LIN compliance enables direct connection to vehicle network. |
Use Scenario: DIN-rail mounted environmental monitor collecting temperature, humidity, and CO₂ via I²C sensors and logging data to SPI flash. IC Role / Device Role / Timing Role: Central data aggregator with RTC timestamping, low-power STOP mode between 10-second readings, and UART debug interface. Use Value: 0.60 μA STOP mode with RTC active extends battery life to >5 years on coin cell; 8 KB data flash stores calibration coefficients and event logs. |
| Home Appliance UI Controller | Portable Diagnostic Tool |
|
Use Scenario: Microwave oven control panel with touch keys, display backlight PWM, and safety interlock monitoring. IC Role / Device Role / Timing Role: System manager handling key scan via KR pins, buzzer tone generation via PCLBUZ, and thermal cutoff via LVD interrupt. Use Value: On-chip key interrupt and programmable buzzer output reduce external components; LVD with 14 thresholds enables precise overvoltage/undervoltage response. |
Use Scenario: Handheld OBD-II scanner reading vehicle CAN/LIN messages and displaying fault codes on OLED. IC Role / Device Role / Timing Role: Protocol translator bridging USB-to-LIN/CAN, with UART/LIN peripherals and 192 KB flash storing diagnostic routines and DTC databases. Use Value: Dual UART/LIN support allows simultaneous vehicle bus access; 192 KB flash accommodates multi-protocol firmware and regional DTC tables. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104LHAFB#30 | 128 KB flash, 8 KB data flash, 16 KB RAM - smaller code footprint, identical pinout and peripheral set | Suitable for cost-sensitive designs with fixed firmware and no field updates | Select when application binary fits ≤128 KB and data logging volume is low |
| R5F104LKAFB#30 | 256 KB flash, 8 KB data flash, 24 KB RAM - larger memory, same 64-pin LFQFP-0.5mm package | Required for complex protocol stacks (e.g., CAN FD + OTA update + secure boot) | Choose when future firmware expansion or dual-bank OTA is mandated |
Compared with R5F104LHAFB#30, the R5F104LJAFB#30 provides 64 KB more flash for feature-rich firmware and 4 KB more RAM for larger communication buffers; versus R5F104LKAFB#30, it trades 64 KB flash and 4 KB RAM for lower unit cost while retaining full peripheral compatibility and pin-for-pin layout reuse.
Availability
R5F104LJAFB#30 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, home appliance UI, and portable diagnostic equipment requiring stable component supply and long-term manufacturing continuity.
Supply support for R5F104LJAFB#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, energy-constrained applications requiring rich analog integration and robust industrial qualification.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F104LJAFB#30?
The R5F104LJAFB#30 operates at up to 32 MHz with its on-chip high-speed oscillator, achieving 44 DMIPS performance. This is measured using the EEMBC CoreMark benchmark and reflects real-world throughput for control-loop execution, not theoretical peak. The RL78 core's 3-stage pipeline and CISC instruction set enable efficient code density, making the R5F104LJAFB#30 particularly effective in deterministic real-time tasks where instruction cycles per function matter more than raw clock speed.
Does the R5F104LJAFB#30 support LIN bus communication, and which pins are dedicated to it?
Yes, the R5F104LJAFB#30 supports LIN 2.2-compliant communication via its UART peripherals. Pins P13/TxD2 and P14/RxD2 are configured as the primary LIN transceiver interface, with built-in sync-break detection and checksum generation. These pins are multiplexed and require external LIN transceiver IC (e.g., TLE7259) for physical layer compliance. The R5F104LJAFB#30 handles protocol framing and scheduling entirely in hardware, reducing CPU load during bus arbitration and message transmission.
What are the flash memory organization and write endurance specifications for the R5F104LJAFB#30?
The R5F104LJAFB#30 contains 192 KB of code flash organized in 1 KB blocks and 8 KB of data flash with background operation (BGO) capability. Data flash supports 1,000,000 write/erase cycles (typical) at VDD = 1.8–5.5 V, enabling reliable parameter storage across product lifetime. Code flash block erase prohibition and flash shield window features prevent unauthorized firmware modification, satisfying basic security requirements for industrial firmware integrity.
How does the R5F104LJAFB#30 manage ultra-low-power operation, and what modes are available?
The R5F104LJAFB#30 offers HALT, STOP, and SNOOZE low-power modes. In STOP mode with only RTC and LVD active, it draws just 0.60 μA - verified at VDD = 3.3 V, TA = 25°C. SNOOZE mode allows data flash rewriting while CPU remains halted, enabling seamless firmware updates. Power gating, clock gating, and peripheral-specific stop controls let designers tailor current consumption precisely to system state, making the R5F104LJAFB#30 ideal for battery-powered equipment with intermittent sensing duty cycles.
Is the R5F104LJAFB#30 pin-compatible with other RL78/G14 variants in the same 64-pin LFQFP package?
Yes, all RL78/G14 devices in the 64-pin LFQFP-0.5mm package - including R5F104LJAFB#30, R5F104LKAFB#30, and R5F104LLAFB#30 - share identical pinouts, electrical characteristics, and peripheral mappings. This allows direct substitution within the same footprint for memory-scaling design variants. No PCB changes are required when migrating between these parts, provided software accounts for differences in flash/RAM size and associated linker configurations.
R5F104LJAFB#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:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 24K 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:
R5F104LJAFB#30 FAQ
1.How can I place an order for R5F104LJAFB#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104LJAFB#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 R5F104LJAFB#30 reliable?
The price and inventory of R5F104LJAFB#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104LJAFB#30 is usually 5 days.
3.What payment methods are accepted for R5F104LJAFB#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104LJAFB#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104LJAFB#30?
R5F104LJAFB#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104LJAFB#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 R5F104LJAFB#30?
For technical support, including R5F104LJAFB#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104LJAFB#30 requirements.
6.How does Aetrix verify that R5F104LJAFB#30 is sourced from the original manufacturer or authorized distributors?
All R5F104LJAFB#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 R5F104LJAFB#30 meets industry standards.
7.What is the process for return or replacement of R5F104LJAFB#30?
All R5F104LJAFB#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104LJAFB#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 R5F104LJAFB#30 part is unused and in its original packaging.
Return procedure for R5F104LJAFB#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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