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HomeProductsIntegrated Circuits (ICs)Embedded - MicrocontrollersR5F524T8AGFK#31
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R5F524T8AGFK#31 - Renesas Electronics America Inc

Manufacturer Part Number
R5F524T8AGFK#31
Manufacturer
Renesas Electronics Corporation
Allelco Part Number
98D-R5F524T8AGFK#31
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
29,332 pcs available, New & Original
Parts Description
32BIT MCU RX24T 128K LQFP64 -40/
Package
64-LQFP (14x14)
Data sheet
-
RoHs Status
ROHS3 Compliant
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Our certification
In stock: 29332
  • Unit Price: $2.881
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $2.881 $2.88
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

R5F524T8AGFK#31 Tech Specifications
Renesas Electronics America Inc - R5F524T8AGFK#31 technical specifications, attributes, parameters and parts with similar specifications to Renesas Electronics America Inc - R5F524T8AGFK#31

Product Attribute Attribute Value
Manufacturer Renesas Electronics Corporation
Voltage - Supply (Vcc/Vdd) 2.7V ~ 5.5V
Supplier Device Package 64-LQFP (14x14)
Speed 80MHz
Series RX24T
RAM Size 16K x 8
Program Memory Type FLASH
Program Memory Size 128KB (128K x 8)
Peripherals DMA, LVD, POR, PWM, WDT
Package / Case 64-LQFP
Product Attribute Attribute Value
Package Tray
Oscillator Type Internal
Operating Temperature -40°C ~ 105°C (TA)
Number of I/O 48
Mounting Type Surface Mount
EEPROM Size 8K x 8
Data Converters A/D 12x12b; D/A 1x8b
Core Size 32-Bit
Core Processor RXv2
Connectivity I²C, SCI, SPI, UART/USART

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant

Frequently Asked Questions(FAQ)

How does the R5F524T8AGFK#31 compare to other RX24T series microcontrollers in terms of flash memory and operating voltage range?
The R5F524T8AGFK#31 features 128KB of embedded flash memory, which is among the higher capacities within the RX24T family, supporting complex firmware applications. It operates across a wide voltage range from 2.7V to 5.5V, offering greater flexibility than many peers constrained to 3.3V or lower. This extended range enables use in battery-powered or industrial environments where supply variations are common. While some RX24T variants offer smaller flash sizes (e.g., 64KB), none exceed 128KB in this subseries, making the R5F524T8AGFK#31 well-suited for applications requiring substantial code storage without transitioning to larger package options.
What are the key peripheral differences between the R5F524T8AGFK#31 and the R5F524T8AGFK#30 that might influence system design decisions?
The R5F524T8AGFK#31 and R5F524T8AGFK#30 share nearly identical core architecture and pinout, but differ primarily in packaging and availability. The #31 variant uses a standard 64-LQFP (14x14) tray package with MSL 3 compliance, suitable for high-volume production. In contrast, the #30 may be offered in alternate packaging or have restricted distribution channels. For designers prioritizing long-term availability and standard assembly processes, the #31 ensures compatibility with most PCB layouts and automated pick-and-place systems, reducing redesign risk during mass production.
Can the R5F524T8AGFK#31 drive multiple high-current loads directly through its GPIO pins, or does it require external buffering?
No, the R5F524T8AGFK#31’s GPIO pins are not rated for high-current loads. Each I/O pin typically sources/sinks up to 20mA under normal conditions, with a maximum absolute rating often limited to 25mA to prevent damage. Driving LEDs at full brightness or powering motors directly may require external drivers such as MOSFETs or transistor arrays. Designers must account for total current draw across all active pins—especially when using PWM peripherals—to avoid exceeding the microcontroller’s overall package thermal and electrical limits, which are generally capped around 100–150mA depending on ambient temperature and duty cycle.
Is the internal oscillator of the R5F524T8AGFK#31 precise enough for USB communication without an external crystal?
The R5F524T8AGFK#31 includes a high-speed internal clock (HCO) capable of 80MHz operation, sufficient for basic timing functions. However, USB requires a precise 48MHz ±0.25% frequency for proper enumeration and data transfer. Due to inherent RC oscillator drift over temperature and voltage, relying solely on the internal oscillator for USB is unreliable across industrial temperature ranges (-40°C to 105°C). Therefore, an external 48MHz crystal oscillator is strongly recommended when implementing USB functionality with this MCU.
How should decoupling capacitors be sized and placed when using the R5F524T8AGFK#31 in a compact PCB layout?
For stable operation, each Vcc/Vss pair on the 64-LQFP package of the R5F524T8AGFK#31 should include a 0.1µF ceramic capacitor mounted as close as possible to the pin, ideally within 2mm. Additionally, a bulk 1–10µF capacitor near the power entry point helps stabilize low-frequency transients. High-speed signals like those from the SPI or SCI modules benefit from localized filtering. Poor decoupling can lead to brownouts or glitches, especially during rapid ADC conversions or PWM transitions, due to the MCU’s moderate noise sensitivity at 80MHz core speed.
What programming interface options are supported by the R5F524T8AGFK#31, and how do they affect debugging overhead?
The R5F524T8AGFK#31 supports Renesas’ proprietary Serial Debug Interface (SDI) via the FINE or FIDE ports, enabling in-circuit debugging and flash programming without removing the device. Unlike JTAG implementations, SDI uses fewer pins and simplifies routing in dense designs. It allows real-time variable monitoring, breakpoint insertion, and trace capabilities, though it halts CPU execution during certain operations. For production programming, the same interface can be repurposed using Renesas’ Flash Development Toolkit (FDT) for batch programming, minimizing test fixture complexity.
Does the R5F524T8AGFK#31 support over-the-air (OTA) firmware updates, and what hardware considerations apply?
The R5F524T8AGFK#31 itself does not include dedicated OTA radio hardware, so OTA updates are only feasible if paired with an external wireless module (e.g., Wi-Fi, BLE, or LoRa). When implemented, the MCU must manage secure boot, flash wear leveling, and interrupt handling while the external transceiver communicates. Given its 128KB flash and 16KB RAM, firmware delta updates must be carefully segmented and validated before writing to preserve integrity. Additionally, sufficient stack space must be reserved for network protocol stacks, which can consume several kilobytes even in minimal configurations.
How does the operating temperature range of -40°C to 105°C affect reliability when using the R5F524T8AGFK#31 in automotive edge applications?
The extended temperature range of the R5F524T8AGFK#31 makes it suitable for industrial and some automotive-grade edge devices, provided the entire system—including passives and connectors—meets similar specifications. At elevated temperatures, leakage currents increase, potentially impacting sleep mode power consumption. Flash retention time decreases above 85°C, so data stored in non-volatile memory should be refreshed periodically if critical. Also, solder joint fatigue becomes a concern at thermal extremes; thus, robust PCB layout practices like avoiding vias near pads and using appropriate creepage distances are essential for long-term reliability.
What is the typical wake-up latency from deep software standby mode using the R5F524T8AGFK#31, and what factors influence it?
The R5F524T8AGFK#31 can enter a deep software standby mode consuming as little as 1.5µA, with wake-up latency typically around 20–30µs after an interrupt triggers. Factors affecting this include clock stabilization time for the main oscillator (if used), peripheral initialization routines, and whether RAM contents need restoring. Using the sub-clock (SCLK) instead of the main oscillator reduces latency but increases power. Designers aiming for ultra-low-power IoT endpoints should profile actual wake cycles under realistic conditions, as software overhead from ISR handling can dominate total response time.
How does the EEPROM size (8K x 8) on the R5F524T8AGFK#31 impact configuration storage strategies compared to using flash?
With only 8KB of electrically erasable EEPROM, the R5F524T8AGFK#31 is ill-suited for storing large datasets or frequently updated logs directly. Instead, it’s best used for critical parameters like calibration values, serial numbers, or operational flags. Flash memory offers much higher endurance (~10k cycles vs. ~1M+ for EEPROM) but lacks byte-level erase capability without erasing entire sectors (typically 2KB). Thus, mixing both: store volatile config in EEPROM and firmware in flash yields optimal balance between durability and flexibility. Avoid frequent writes to EEPROM to prevent premature wear, especially in battery-backed applications.

Parts with Similar Specifications

The three parts on the right have similar specifications to Renesas Electronics America Inc R5F524T8AGFK#31

Product Attribute R5F524T8AGFM#31 R5F524T8AGFN#31 R5F524T8AGFF#31 R5F524T8AGFK#11
Part Number R5F524T8AGFM#31 R5F524T8AGFN#31 R5F524T8AGFF#31 R5F524T8AGFK#11
Manufacturer Renesas Electronics America Inc Renesas Electronics America Inc Renesas Electronics America Inc Renesas Electronics America Inc
Peripherals - - - -
Series - - - -
RAM Size - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Core Processor - - - -
Number of I/O - - - -
Voltage - Supply (Vcc/Vdd) - - - -
Oscillator Type - - - -
Program Memory Size - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Connectivity - - - -
Speed - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Program Memory Type - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
EEPROM Size - - - -
Data Converters - - - -
Core Size - - - -

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Customer Reviews

Evaluation: 10 Articles

  • ECUb***h
    Sep 22, 2026

    Used for repair of an older automotive ECU. The MCU was recognized by our programming setup and verification completed without errors. The repaired board now starts and communicates normally.

  • RS48***ieldTech
    Sep 16, 2026

    Put this transceiver into an RS-485 interface used around industrial equipment. Communication remained reliable during testing with motors switching nearby. Good result for the replacement board.

  • Logi***b_Chris
    Sep 8, 2026

    Purchased for a Cyclone III development project. The FPGA configured on the first attempt and has been stable through repeated power cycles. No problems with the I/O we are using.

  • Circ***FixerTom
    Sep 2, 2026

    Used this rectifier in a high-current power supply repair. Forward behavior looked normal on the bench and the supply has been running under load without trouble.

  • Retr***UWorks
    Aug 31, 2026

    Needed the exact ST10F269Z2Q6 for servicing an older control unit. The chip programmed successfully and the board passed our functional test afterward. Much easier than redesigning around a newer MCU.

  • Andr***PCBLab
    Aug 28, 2026

    I needed this ADC for an older data acquisition board. Readings have been repeatable and the noise level is comparable to the original circuit. Happy with the purchase.

  • Leat***O'Keefe
    Aug 20, 2026

    one of my hobbies is skydiving. and when i'm skydiving this works great.

  • Ilen***
    Aug 20, 2026

    This product works considerably well. It secretly improves my basketball by a lot.

  • Indu***ialPower
    Aug 17, 2026

    Installed this IGBT module in a power conversion cabinet. Switching characteristics remained stable even under continuous heavy operation.

  • Nikh***ech
    Aug 13, 2026

    Great low-power MCU for portable equipment. Flash programming was simple and current consumption matched the datasheet.

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Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.
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Renesas Electronics America Inc

R5F524T8AGFK#31

Renesas Electronics America Inc
98D-R5F524T8AGFK#31

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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