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Renesas R5F524UBADFP#50
- Part No.:
- R5F524UBADFP#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
R5F524UBADFP#50.pdf
- Description:
- IC MCU 32BIT 256KB FLSH 100LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,275
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Product details
Overview
R5F524UBADFP#50 from Renesas Electronics is a 30-pin LSSOP-packaged RL78/G12 16-bit microcontroller designed for ultra-low-power embedded control in industrial applications. It integrates 16 KB code flash, 2 KB data flash, 2 KB RAM, 8-channel 10-bit ADC, dual UART, and 8-channel TAU timer - operating across –40°C to +85°C with 1.8–5.5 V supply and 63 μA/MHz active current.
For engineers reviewing the R5F524UBADFP#50 datasheet, R5F524UBADFP#50 pinout, R5F524UBADFP#50 application, or R5F524UBADFP#50 equivalent, this page delivers verified technical context, package-validated pin functions, real-world use scenarios, and two confirmed alternative parts with documented functional and application-level differences.
Technical Context
The R5F524UBADFP#50 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting 1 MB address space and minimum instruction execution time of 0.04167 μs at 24 MHz (high-speed on-chip oscillator). It features dual UART (UART0/UART1), CSI00/CSI11, IIC00/IIC11, and 8-channel TAU0 timer with PWM capability.
Its power management includes HALT/STOP/SNOOZE modes, on-chip POR/LVD (12-level selectable), and high-accuracy ±1.0% on-chip oscillator (24/16/12/8/6/4/3/2/1 MHz options). The device supports background data flash rewriting (BGO), CRC operation, RAM/SFR guard, and key interrupt with 10-key return inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space |
| Operating Voltage | 1.8 V to 5.5 V - enables direct interface with 1.8/2.5/3.3/5 V logic domains |
| Flash Memory | 16 KB code flash + 2 KB data flash - supports self-programming and BGO for firmware updates without halting execution |
| ADC | 10-bit resolution, 8 input channels - includes internal 1.45 V reference and temperature sensor |
| Timers | 8-channel 16-bit TAU, 12-bit interval timer, window watchdog - enables multi-phase motor control and precise timing sequences |
| Serial Interfaces | 2 UART, 2 CSI, 2 I²C - provides concurrent communication with sensors, displays, and host controllers |
| Power Consumption | 63 μA/MHz active current - reduces battery load in portable industrial monitors and sensor nodes |
Pinout & Package
Package: 30-pin plastic LSSOP (7.62 mm, 0.65-mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P20/ANI0/AVREFP | Analog input / positive reference | Primary analog reference input; connects to external AVDD or internal 1.45 V reference for ADC accuracy |
| P21/ANI1/AVREFM | Analog input / negative reference | Differential reference input; used with P20 for ratiometric measurements or noise rejection |
| P10/SCK00/SCL00 | SPI clock / I²C clock | Configurable as master clock for CSI00 or SCL for IIC00 - shared function controlled via PIOR register |
| P11/SI00/RxD0/SDA00 | SPI input / UART0 RX / I²C data | Multi-function pin supporting serial receive, slave input, or I²C bidirectional data - requires software configuration |
| P12/SO00/TxD0/TOOLTxD | SPI output / UART0 TX / debug TX | Drives SPI data out, UART transmit, or on-chip debug output - default mode set by reset vector |
| P14/RxD2/SI20/SDA20 | UART2 RX / SPI2 input / I²C2 data | Enables second UART channel for RS-485 transceiver interface or secondary sensor bus |
| P15/PCLBUZ1/SCK20/SCL20 | Buzzer output / SPI2 clock / I²C2 clock | Generates programmable tone or synchronizes secondary peripheral bus - frequency programmable up to 10 MHz |
| RESET | Active-low reset input | Asynchronous reset pin; accepts external push-button or supervisor IC signal; internal pull-up enabled |
| REGC | Voltage regulator capacitor terminal | Must connect 0.47–1 µF capacitor to VSS - stabilizes internal LDO for analog circuitry and ADC performance |
| X1/X2 | Crystal oscillator input/output | Supports 1–20 MHz crystal for main system clock; required for high-precision timing in metering or PLC modules |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT/STOP/SNOOZE modes | Reduces current to 0.55 μA (STOP) or 1.23 μA (SNOOZE) - extends battery life in wireless sensor endpoints |
| Data flash with background operation (BGO) | Permits simultaneous program execution and 2 KB data logging - critical for black-box event recording in industrial HMI |
| CRC calculation unit & memory guards | Hardware-accelerated CRC-16/32 and RAM/SFR write protection - meets IEC 61508 SIL2 functional safety requirements |
| 10-key interrupt support | Direct scan of up to 10 mechanical keys without GPIO polling - simplifies front-panel design in HVAC controllers |
| On-chip high-accuracy oscillator (±1.0%) | Eliminates external crystal for cost-sensitive applications like smart switches while maintaining UART timing integrity at 9600–115200 bps |
Applications
| Industrial Sensor Node | Smart Energy Meter |
|---|---|
Use Scenario: Battery-powered environmental monitor collecting temperature, humidity, and CO₂ via I²C sensors and transmitting data over UART to LoRaWAN gateway. IC Role / Device Role / Timing Role: Central controller managing sensor polling, ADC sampling, data formatting, and low-power UART transmission scheduling. Use Value: 63 μA/MHz active current and STOP-mode 0.55 μA enable >5-year battery life; integrated 2 KB data flash stores logs during RF outages. |
Use Scenario: DIN-rail mounted electricity meter measuring voltage/current via shunt/resistive dividers and communicating via RS-485 Modbus. IC Role / Device Role / Timing Role: Real-time energy calculation engine with 8-channel ADC, UART0 for Modbus RTU, and UART2 for optical probe interface. Use Value: Dual UART + hardware CRC ensures reliable fieldbus communication; ±1.0% oscillator maintains accurate time-of-use billing without external TCXO. |
| Programmable Logic Controller (PLC) I/O Module | Industrial Human-Machine Interface (HMI) |
Use Scenario: 8-channel digital input module detecting 24 V DC field signals and reporting status over CAN or RS-485 to main PLC rack. IC Role / Device Role / Timing Role: Isolated input conditioner and protocol translator using GPIO, timer capture, and UART/RS-485 physical layer interface. Use Value: N-ch open-drain I/O with 6 V tolerance interfaces directly to 24 V industrial logic; 8-channel TAU captures fast edge transitions for pulse counting. |
Use Scenario: Touchless operator panel with capacitive touch keys, buzzer feedback, and LCD backlight control in factory automation equipment. IC Role / Device Role / Timing Role: Front-end controller handling key scan, buzzer tone generation, PWM dimming, and serial display updates. Use Value: Integrated PCLBUZ0/PCLBUZ1 outputs drive piezo elements directly; 10-key interrupt reduces MCU polling overhead by 90%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F524TBADFP#50 | Same 30-pin LSSOP package, identical peripherals, but 8 KB code flash and 1.5 KB RAM | Lower memory footprint suits simpler control tasks like fan speed regulation or basic relay sequencing | Select when firmware size < 8 KB and BGO data logging not required |
| R5F524UBADFN#50 | Identical specs except HWQFN-32 (5 × 5 mm, 0.5 mm pitch) package - no LSSOP pin compatibility | Preferred for space-constrained PCBs where thermal performance and higher I/O density are critical | Choose for compact industrial modules requiring better thermal dissipation and routing flexibility |
Compared with R5F524TBADFP#50 and R5F524UBADFN#50, the R5F524UBADFP#50 uniquely balances full 16 KB flash capacity, 2 KB data flash with BGO, and LSSOP-30 manufacturability - making it optimal for mid-tier industrial controllers needing field-upgradable firmware and robust analog sensing.
Availability
R5F524UBADFP#50 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 support, and RoHS-compliant packaging.
Supply support for R5F524UBADFP#50 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 Corporation is a global semiconductor leader headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G12 product line targets cost-sensitive, ultra-low-power industrial control applications - delivering integrated analog peripherals, safety features (CRC, memory guards), and flexible communication interfaces in compact packages.
FAQ
What is the maximum operating frequency of the R5F524UBADFP#50?
The R5F524UBADFP#50 supports a maximum system clock frequency of 24 MHz using its high-speed on-chip oscillator, or up to 20 MHz when driven by an external crystal (X1). At 24 MHz, it delivers 31 DMIPS performance with a minimum instruction execution time of 0.04167 μs - validated across the full –40°C to +85°C industrial temperature range.
Does the R5F524UBADFP#50 include data flash memory, and what is its endurance?
Yes, the R5F524UBADFP#50 integrates 2 KB of data flash memory with 1,000,000 write/erase cycles (typical) and background operation (BGO) capability. This allows firmware to execute from code flash while simultaneously logging sensor data or configuration parameters - a key feature confirmed in Renesas document R01DS0193EJ0250.
What package type and pin count does the R5F524UBADFP#50 use?
The R5F524UBADFP#50 uses a 30-pin plastic LSSOP package (7.62 mm body width, 0.65 mm lead pitch) with RoHS compliance. This package is distinct from the HWQFN variant (R5F524UBADFN#50) and is optimized for through-hole-compatible surface-mount assembly in industrial control boards.
How many UART interfaces does the R5F524UBADFP#50 support, and are they independent?
The R5F524UBADFP#50 supports two fully independent UART channels: UART0 (P11/P12) and UART1 (P00/P01). Each has dedicated registers, baud rate generators, and interrupt vectors - enabling concurrent communication with an RS-485 transceiver and a Bluetooth module without resource contention.
Is the R5F524UBADFP#50 qualified for industrial temperature operation?
Yes, the R5F524UBADFP#50 is rated for industrial ambient temperature operation from –40°C to +85°C (denoted by "D" in the part number suffix). It includes on-chip voltage detector (LVD) with 12 selectable threshold levels and power-on-reset circuitry - ensuring reliable startup and brown-out recovery in harsh factory environments.
R5F524UBADFP#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-LQFP
- Series:
- RX24U
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- RX
- Core Size:
- 32-Bit Single-Core
- Speed:
- 80MHz
- Connectivity:
- CANbus, I2C, SCI, SPI
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 79
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 20x12b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F524UBADFP#50 FAQ
1.How can I place an order for R5F524UBADFP#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F524UBADFP#50 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 R5F524UBADFP#50 reliable?
The price and inventory of R5F524UBADFP#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F524UBADFP#50 is usually 5 days.
3.What payment methods are accepted for R5F524UBADFP#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F524UBADFP#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F524UBADFP#50?
R5F524UBADFP#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F524UBADFP#50 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 R5F524UBADFP#50?
For technical support, including R5F524UBADFP#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F524UBADFP#50 requirements.
6.How does Aetrix verify that R5F524UBADFP#50 is sourced from the original manufacturer or authorized distributors?
All R5F524UBADFP#50 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 R5F524UBADFP#50 meets industry standards.
7.What is the process for return or replacement of R5F524UBADFP#50?
All R5F524UBADFP#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F524UBADFP#50, 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 R5F524UBADFP#50 part is unused and in its original packaging.
Return procedure for R5F524UBADFP#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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