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HomeProductsIntegrated Circuits (ICs)Embedded - MicrocontrollersPIC18F4580T-I/PT
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PIC18F4580T-I/PT - Microchip Technology

Manufacturer Part Number
PIC18F4580T-I/PT
Manufacturer
Microchip Technology
Allelco Part Number
32D-PIC18F4580T-I/PT
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
3,075 pcs available, New & Original
Parts Description
IC MCU 8BIT 32KB FLASH 44TQFP
Package
44-TQFP (10x10)
Data sheet
PIC18F4580T-I/P.pdf
RoHs Status
 
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Specifications

PIC18F4580T-I/PT Tech Specifications
Microchip Technology - PIC18F4580T-I/PT technical specifications, attributes, parameters and parts with similar specifications to Microchip Technology - PIC18F4580T-I/PT

Product Attribute Attribute Value
Manufacturer Microchip Technology
Voltage - Supply (Vcc/Vdd) 4.2V ~ 5.5V
Supplier Device Package 44-TQFP (10x10)
Speed 40MHz
Series PIC® 18F
RAM Size 1.5K x 8
Program Memory Type FLASH
Program Memory Size 32KB (16K x 16)
Peripherals Brown-out Detect/Reset, HLVD, POR, PWM, WDT
Package / Case 44-TQFP
Package Tape & Reel (TR)
Product Attribute Attribute Value
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Number of I/O 36
Mounting Type Surface Mount
EEPROM Size 256 x 8
Data Converters A/D 11x10b
Core Size 8-Bit
Core Processor PIC
Connectivity CANbus, I²C, SPI, UART/USART
Base Product Number PIC18F4580

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status RoHS non-compliant
Moisture Sensitivity Level (MSL) 3 (168 Hours)
REACH Status REACH Unaffected
ECCN 3A991A2
HTSUS 8542.31.0001

Parts Introduction

PIC18F4580T-I/PT Image
PIC18F4580T-I/PT (1)

Manufacturer Part Number

PIC18F4580T-I/PT

Manufacturer

Microchip Technology

Introduction

8-bit microcontroller with enhanced features for embedded control.

Product Features and Performance

8-Bit High-Performance Microcontroller

40MHz Maximum Speed

Integrated CANbus, I2C, SPI, UART/USART Interfaces

Rich Peripherals Including PWM, WDT, Brown-out Detect/Reset

11x10b Analog-to-Digital Converters for precise measurement

Product Advantages

Robust Serial Communication Options

Highly Versatile with 36 I/O Pins

Advanced Peripherals for Complex Applications

Energy-Efficient with Low-Power Features

Key Technical Parameters

Core Processor: PIC

Program Memory: 32KB Flash

RAM: 1.5KB

EEPROM: 256 Bytes

I/O Count: 36

Speed: 40MHz

Voltage Supply: 4.2V to 5.5V

Operating Temperature: -40°C to 85°C

Quality and Safety Features

Extended Operating Temperature Range

Brown-out Detect/Reset for Stable Operation

Power-on Reset (POR) and Watchdog Timer (WDT)

Compatibility

CANbus, I2C, SPI, UART Communication Compatible

Surface Mount, 44-TQFP Package

Application Areas

Automotive Control Systems

Industrial Automation

Robotics

Consumer Electronics

Product Lifecycle

Active Status

Not Nearing Discontinuation

Options for Replacements or Upgrades Available

Several Key Reasons to Choose This Product

Speed and Reliability for Real-Time Applications

Broad Compatibility with Various Serial Buses

Extensive Support from Microchip Technology

Ample Program Memory and RAM for Complex Software

Scalable for Future Expansion and Upgrades

Frequently Asked Questions(FAQ)

How does the PIC18F4580T-I/PT compare to other 8-bit microcontrollers in terms of program memory and I/O availability for industrial control applications?
The PIC18F4580T-I/PT offers 32KB of FLASH program memory, which is sufficient for moderately complex industrial control routines such as motor sequencing or sensor data logging. With 36 general-purpose I/O pins, it supports multiple peripheral interfaces including CANbus, SPI, and UART, making it competitive with other Microchip PIC® 18F series devices like the PIC18F45K22, though the latter trades some I/O count for integrated USB functionality. For designs requiring deterministic timing and moderate code size, the memory-to-pin ratio of this MCU favors scalable system architectures.
What are the key considerations when selecting the PIC18F4580T-I/PT for a battery-powered device operating below 4.2V?
While the PIC18F4580T-I/PT supports supply voltages down to 4.2V, most low-power applications require operation at lower voltages, necessitating an external LDO or buck converter to step down from a higher input rail. The device’s internal oscillator runs reliably across the full voltage range, but analog peripherals such as the 10-bit ADC may exhibit reduced resolution or accuracy below nominal supply. Designers should evaluate leakage current trends and ensure stable reset behavior under brown-out conditions using the built-in BOR circuitry.
Can the PIC18F4580T-I/PT be used in automotive environments given its temperature rating?
The PIC18F4580T-I/PT is rated for -40°C to 85°C, which covers many industrial and commercial applications but falls short of standard automotive AEC-Q100 qualification requirements. While it could function in non-critical automotive subsystems with proper thermal management, prolonged exposure to engine bay temperatures or rapid thermal cycling may compromise long-term reliability. For safety-critical automotive designs, a qualified variant or alternative microcontroller family should be considered.
How does the EEPROM size on the PIC18F4580T-I/PT influence configuration storage in field-deployed systems?
With 256 bytes of EEPROM, the PIC18F4580T-I/PT provides limited non-volatile storage suitable for storing calibration offsets, user preferences, or network identifiers in embedded systems. Each byte can endure approximately 100,000 write cycles, so frequent rewrites—such as logging operational counters—should be avoided. For applications requiring larger parameter sets, external serial EEPROMs via I2C may be necessary, adding component count and firmware complexity.
What trade-offs exist between using the internal oscillator versus an external crystal on the PIC18F4580T-I/PT?
The PIC18F4580T-I/PT includes an internal 16MHz±1% RC oscillator, enabling PCB simplification by eliminating crystal and load capacitors. However, this oscillator drifts with temperature and aging, potentially affecting communication protocols like CANbus that demand tight timing margins. External crystals offer better stability (±20 ppm typical) and are preferred for precision timing applications. The choice depends on whether system tolerance for clock variation outweighs board space and cost savings.
Is the PIC18F4580T-I/PT compatible with modern development tools and IDE workflows?
Yes, the PIC18F4580T-I/PT is supported by MPLAB X IDE and XC8 compiler, allowing integration into standard Microchip toolchains. However, legacy project configurations targeting older versions may encounter linker script adjustments due to changes in memory layout handling. Debugging via ICD 3 requires a compatible programmer/debugger module, and real-time variable monitoring benefits from adequate RAM allocation—1.5KB must be shared among stacks, globals, and runtime buffers.
How should interrupt latency be managed when using multiple peripherals with the PIC18F4580T-I/PT?
As an 8-bit core running at 40MHz, the PIC18F4580T-I/PT has fixed interrupt response times, typically within 3 instruction cycles after flag assertion. With peripherals like UART, SPI, and ADC all capable of generating interrupts, careful priority assignment and ISR minimization are essential to prevent missed events or stack overflow. Using shadow registers and avoiding floating-point operations in handlers helps maintain predictable timing, especially in time-sensitive control loops.
What factors determine whether the PIC18F4580T-I/PT is suitable for CANbus communication in multi-node networks?
The PIC18F4580T-I/PT includes a dedicated CAN module compliant with ISO 11898 standards, supporting baud rates up to 1Mbps. Successful implementation requires matching termination resistors, proper differential signaling, and adherence to arbitration rules. Clock accuracy directly impacts bit timing calculations; therefore, using an external crystal improves network synchronization reliability. Additionally, sufficient RAM must remain available for message buffers, as the 1.5KB limit constrains large FIFO implementations.
How does the RoHS non-compliance status of the PIC18F4580T-I/PT affect manufacturing and end-of-life planning?
The PIC18F4580T-I/PT is RoHS non-compliant due to lead content in packaging materials, which restricts its use in certain regulated markets like the European Union under Directive 2011/65/EU. Manufacturers must verify alternative sourcing options or consider newer variants such as the PIC18F4550T-E/PT if compliance is required. Inventory planning should account for potential phase-out timelines, particularly in consumer electronics where substitution risks supply chain disruption.
What design precautions are necessary to ensure reliable operation during power-up sequences involving the PIC18F4580T-I/PT?
The PIC18F4580T-I/PT incorporates Power-on Reset (POR), Brown-out Detect (BOD), and Low-Voltage Detect (LVD) features, but their effectiveness depends on correct configuration bits and supply ramp characteristics. Sudden power dips may cause unintended resets unless BOD thresholds are set appropriately. Decoupling capacitors near VDD/VSS pins mitigate transient noise, and ensuring a clean power-up slope avoids premature entry into reset mode, which can disrupt initialization routines.
In what scenarios would the PIC18F4580T-I/PT outperform a 32-bit MCU despite its 8-bit architecture?
For applications emphasizing deterministic execution, low interrupt overhead, and efficient bit manipulation—such as simple sensor polling, relay control, or protocol bridging—the PIC18F4580T-I/PT’s streamlined pipeline and direct hardware support for bit-banding operations can yield faster response than a 32-bit MCU burdened by context switching and OS overhead. Its modest resource footprint also reduces total bill of materials cost compared to ARM-based alternatives in volume production.
How does the moisture sensitivity level (MSL) of 3 impact handling and storage of the PIC18F4580T-I/PT?
Classified as MSL 3, the PIC18F4580T-I/PT requires dry packaging within 168 hours after desiccant removal. Exposure beyond this window increases risk of popcorning during reflow soldering unless baked pre-assembly. Standard ESD protocols apply, and reels must be sealed immediately after unpacking. Compliance with IPC/JEDEC J-STD-033 guidelines ensures reliability, especially in high-volume SMT lines where automated handling accelerates exposure.
What limitations exist when using the onboard PWM module of the PIC18F4580T-I/PT for motor control?
The PIC18F4580T-I/PT provides up to 5 PWM channels with adjustable duty cycle and frequency, suitable for basic speed control of brushed DC motors or dimming LEDs. However, resolution is limited to 10-bit, restricting fine speed granularity, and dead-time insertion must be managed manually in software or via CCP/PWM peripheral settings. High-frequency switching (>20kHz) may strain the core due to ISR overhead, potentially introducing jitter unless optimized assembly or timer-driven updates are employed.
How can developers optimize code size when compiling for the PIC18F4580T-I/PT?
To minimize FLASH usage on the PIC18F4580T-I/PT, developers should leverage compiler optimization flags (-O1 or -Os), eliminate redundant library calls, and avoid dynamic memory allocation. Inline assembly for critical loops improves density, and constant propagation reduces literal pool consumption. Monitoring map files reveals unutilized functions, enabling dead code elimination—a crucial step given the 32KB memory ceiling.
What are the implications of using the PIC18F4580T-I/PT in a multi-drop I2C system?
The PIC18F4580T-I/PT’s I2C module supports master and slave modes up to 100kHz (standard mode) and 400kHz (fast mode). In multi-drop configurations, pull-up resistor values must balance bus capacitance and rise time, often necessitating 4.7kΩ resistors for shorter traces. Address conflicts and clock stretching add complexity, requiring robust error handling in firmware. Limited internal buffering means large data transfers benefit from segmented reads/writes.
Why might the PIC18F4580T-I/PT be preferred over newer PIC18F series variants despite similar pin counts?
Although newer PIC18F devices integrate more advanced peripherals like USB or enhanced comparators, the PIC18F4580T-I/PT remains relevant in legacy designs where proven firmware libraries exist, toolchain familiarity is established, or specific analog performance profiles were validated. Its straightforward architecture simplifies debugging, and availability through distributors ensures continuity for mature products nearing end-of-life transitions.
How does the package type (44-TQFP) influence thermal and mechanical design for the PIC18F4580T-I/PT?
The 44-pin TQFP (10x10mm) package offers compact form factor and good electrical performance due to short interconnect lengths, but its exposed pad enhances heat dissipation only if properly soldered to a thermal plane. Mechanical stress during board flexing may crack solder joints, necessitating stiffeners or conformal coating in harsh environments. Automated pick-and-place equipment handles it well, but manual assembly demands precise alignment to avoid tombstoning.
What role does the ECCN classification (3A991A2) play in export compliance for the PIC18F4580T-I/PT?
Assigned ECCN 3A991A2, the PIC18F4580T-I/PT falls under “specially designed microprocessors” not controlled for military end-use, but still subject to U.S. export regulations. Importers must verify destination country eligibility under Wassenaar Arrangement guidelines, particularly for dual-use applications. While generally unrestricted for commercial use, exporters should retain documentation for audits and avoid misclassification during customs declarations.

Parts with Similar Specifications

The three parts on the right have similar specifications to Microchip Technology PIC18F4580T-I/PT

Product Attribute PIC18F4580-I/PT PIC18F4580-I/P PIC18F458-I/PT PIC18F4580T-I/ML
Part Number PIC18F4580-I/PT PIC18F4580-I/P PIC18F458-I/PT PIC18F4580T-I/ML
Manufacturer Microchip Technology Microchip Technology Microchip Technology Microchip Technology
Oscillator Type - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Connectivity - - - -
Data Converters - - - -
Core Size - - - -
Number of I/O - - - -
Speed - - - -
Voltage - Supply (Vcc/Vdd) - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Series - - - -
RAM Size - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Core Processor - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Program Memory Size - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Base Product Number - DAC34H84 MAX500 ADS62P42
Peripherals - - - -
EEPROM Size - - - -
Program Memory Type - - - -

PIC18F4580T-I/PT Datasheet PDF

Download PIC18F4580T-I/PT pdf datasheets and Microchip Technology documentation for PIC18F4580T-I/PT - Microchip Technology.

Datasheets
PIC18F(2, 4)zzz Programming Specification.pdf PIC18F2x80, 4x80 Data Sheet.pdf
PCN Packaging
Label and Packing Changes 23/Sep/2015.pdf Reel Design Update 07/May/2015.pdf
PCN Design/Specification
New DeviceDoc 23/May/2016.pdf TQFP-44L Palladium Coated Copper Wire 17/Dec/2013.pdf
Errata
PIC18Fxx80 Revision A1 Errata.pdf
PCN Assembly/Origin
Qualification Lead-Frame 03/Jun/2014.pdf

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Customer Reviews

Evaluation: 10 Articles

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

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Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

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.
  • QC (Quality Warranty)
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  • Certifications & Memberships

QC (Quality Warranty)

Allelco is committed to exceeding customer expectations through customer service excellence, order accuracy, and on-time delivery.
This is achieved through our commitment to the continual improvement of our processes, services, and products.


Strict quality inspection builds a solid foundation for electronic component quality.
  1. Visual inspection
  2. Performance testing and reliability verification
  3. Standardized full-process testing
  4. Precise control of every parameter
We eliminate defective components and ensure the stable operation of electronic devices through professional quality standards.
Quality Inspection
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The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.
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Contact us if you have any questions.

Packaging

Electrostatic Discharge Protection and Handling

All electrostatic-sensitive components are handled in accordance with electrostatic discharge control procedures. The products are hermetically sealed in anti-static safe packaging to prevent electrostatic damage. Appropriate labeling is also applied for identification and traceability. This ensures product integrity during storage, handling and transportation.


ESD

Certifications & Memberships

Third-party certified, strict quality control. Our certification
  • ISO 9001: 2015
  • ISO 13485: 2016
  • ISO 14001: 2015
  • ISO 28000: 2007
  • ISO 45001: 2018
  • GB/T 27922-2011
  • SMTA
  • IPC
  • ESD
  • PSMA
PIC18F4580T-I/PT Image

PIC18F4580T-I/PT

Microchip Technology
32D-PIC18F4580T-I/PT

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