Microcontroladores

Productos (19360)

PIC18F4423-I/P - 8-Bit 40MHz 16KB Flash MCU 40-PDIP | Microchip
PIC18F4423-I/P

PIC18F4423-I/P - 8-Bit 40MHz 16KB Flash MCU 40-PDIP | Microchip

The Microchip Technology PIC18F4423-I/P is an 8-bit PIC18F family microcontroller built on a high-performance RISC architecture delivering up to 16 MIPS at 40 MHz, housed in a 40-pin PDIP (through-hole) package. The device integrates 16 KB of Flash program memory, 768 bytes of RAM, and 256 bytes of EEPROM data memory, making it suitable for moderate-complexity embedded control applications. It operates from 2.0V to 5.5V across the industrial temperature range (-40C to +85C) and is qualified to Microchip's standard industrial "-I" grade. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (Flash), data memory (RAM), and peripherals onto one die. The PIC18 family employs an 8-bit data path with a RISC instruction set, an enhanced Harvard architecture with separate program and data buses, and a 31-level hardware stack. Within the broader IC hierarchy, the PIC18F4423 belongs to the microcontroller category, sitting beneath 16-bit and 32-bit MCUs in processing capability while outperforming baseline PIC10/PIC12/PIC16 parts in peripherals and memory. Key features include a 10-bit Analog-to-Digital Converter (ADC) with up to 13 channels, two analog comparators, a Capture/Compare/PWM (CCP) module, an Enhanced Universal Synchronous/Asynchronous Receiver Transmitter (EUSART), a Master Synchronous Serial Port (MSSP) supporting SPI and I2C, and nanoWatt power-management technology that drops quiescent current into the sub-microamp range for sleep-mode battery applications. The 36 programmable I/O pins are 5V-tolerant and source/sink up to 25 mA per pin, sufficient to drive LEDs and small relays directly. The PIC18F4423 uses Microchip's enhanced flash cell with self-programmability under application control, supporting in-circuit serial programming (ICSP) and a robust code-protection scheme. Internal oscillator options and a programmable brown-out reset (BOR) reduce external component count, while a hardware Watchdog Timer with postscaler adds fail-safe operation in unattended systems. Typical applications include industrial sensor acquisition boards, HVAC fan/thermostat control, low-end human-interface panels, appliance controllers, and battery-powered metering modules that benefit from nanoWatt sleep modes. Hobbyist and educational platforms also use the PIC18F4423 as a gateway into the PIC ecosystem because of its abundant tutorials and free MPLAB X IDE toolchain. When designing with the PIC18F4423, ensure that VDD decoupling (0.1 uF ceramic close to each VDD/VDD-Pin pair) and a 10 kohm pull-up on MCLR are placed per Microchip's analog-layout guidelines. The 40-pin PDIP footprint offers generous board real estate for hand-soldered prototypes and breadboard-friendly development, but migrated designs should select the TQFP-44 surface-mount package variants for volume production. This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes that are not aggregated on a single manufacturer or distributor page.

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PIC18F4423T-I/PT - 8-bit MCU, 16KB Flash, 36 I/O, TQFP-44 | Microchip
PIC18F4423T-I/PT

PIC18F4423T-I/PT - 8-bit MCU, 16KB Flash, 36 I/O, TQFP-44 | Microchip

The Microchip PIC18F4423T-I/PT is a high-performance 8-bit CMOS flash microcontroller built on the PIC18 enhanced RISC architecture, delivering up to 16 MIPS at a 40 MHz oscillator, packaged in a 44-pin TQFP (PT). It integrates 16 KB of on-chip flash program memory, 768 bytes of RAM, and 256 bytes of EEPROM, with 36 digital I/O lines and a 10-bit ADC with up to 13 channels. The device operates from 4.2 V to 5.5 V and supports the industrial temperature range of -40 °C to +85 °C. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, optimized for embedded control tasks such as sensor reading, motor driving, user-interface handling, and low-to-moderate bandwidth communication. The PIC18 family sits within Microchip's 8-bit MCU hierarchy (PIC10/12/16/18) and is targeted at applications that require more peripherals and code space than baseline PIC16 parts but do not need the 16-bit dsPIC or 32-bit SAM architectures. Within that hierarchy the PIC18F4423 belongs to the 28/40/44-pin high-performance, enhanced-flash sub-family with nanoWatt power management and an integrated 10-bit A/D converter. Key features of this part include 16 KB of self-programmable flash, nanoWatt technology for power-managed sleep and idle modes, a 10-bit A/D converter with up to 13 input channels, two analog comparators, a hardware USART, an MSSP module supporting SPI and I2C (both Master and Slave), and four 16-bit timer/counters. The 44-pin TQFP package exposes two capture/compare/PWM (CCP) modules plus one Enhanced CCP (ECCP) module, providing flexible PWM control for motor, lighting, and power-conversion loops. CIP (Core Independent Peripherals) functions let the timers, comparators, and PWM run autonomously without CPU intervention. Architecturally the part uses a 16-bit instruction word with an 8-bit data bus, an 8x8 hardware multiplier, and a 31-level hardware stack. The enhanced flash controller supports self-programming and ICSP (In-Circuit Serial Programming) via two pins, allowing in-field firmware updates. Hardware-level interrupt handling, context saving on stack, and a vectored interrupt structure reduce jitter in real-time control loops. The instruction set is largely upward-compatible with the PIC16 family, easing migration of legacy firmware. Typical applications include industrial control and sensor interface boards, low-cost HMI panels, small motor-control BLDC or stepper drivers, USB-to-UART bridges (when paired with an external transceiver), battery chargers, white-goods appliances, and general-purpose 5 V embedded designs that need 16 KB of code and a handful of analog inputs. The wide industrial temperature window also makes it suitable for outdoor installations and automotive under-hood subsystems outside the AEC-Q100 envelope. Design consideration: when migrating to PIC18F46J11 or PIC18F46J50 the I/O mapping is not strictly identical - verify peripheral remapping tables before PCB respin. For noise-sensitive analog readings, route the analog VREF+ pin separately from digital VDD and add bulk-decoupling of at least 10 µF at the supply pin. This page synthesizes distributor pricing, drop-in TQFP-44 alternatives, and practical design notes not found in the manufacturer datasheet, helping engineers decide whether the PIC18F4423T-I/PT is the right fit for a 5 V, 16 KB-code, 36-I/O embedded design in 2026.

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PIC18F442T-I/L - 8-bit 40MHz 16KB Flash MCU 44-PLCC | Microchip
PIC18F442T-I/L

PIC18F442T-I/L - 8-bit 40MHz 16KB Flash MCU 44-PLCC | Microchip

The Microchip Technology PIC18F442T-I/L is an 8-bit CMOS Flash-based microcontroller from the PIC18F family, delivering 10 MIPS performance at 40 MHz clock speed, packaged in a 44-pin PLCC (16.59 x 16.59 mm) form factor with surface-mount J-leads. It integrates 16 KB of Flash program memory (8K x 16 words), 768 bytes of SRAM data memory, and 256 bytes of EEPROM, providing the storage balance typical of mid-range embedded designs. A microcontroller (MCU) is a single-chip computer containing a CPU core, program and data memory, peripheral I/O, and timers on one die. The PIC18F family belongs to Microchip's 8-bit enhanced Harvard architecture tier, offering 16-bit opcodes, 31-level hardware stack, and 77 single-word instructions, sitting above the baseline PIC16 family in memory and peripheral sophistication. Within Microchip's broader portfolio it is categorized as a high-performance enhanced Flash MCU with nanoWatt power management, popular in industrial control, automotive body modules, and consumer white-goods designs. Key features of the PIC18F442T-I/L include an integrated 10-bit ADC with up to 8 channels, a USART for serial communication, an MSSP module supporting SPI and I2C, capture/compare/PWM (CCP) modules, and 34 digital I/O lines. The 'T' suffix denotes tape-and-reel packaging, 'I' indicates the industrial -40C to +85C temperature range, and 'L' identifies the PLCC package. Operating voltage spans 4.2 V to 5.5 V from a single supply. The architecture uses a separate instruction and data bus with a 25 ns instruction cycle at 40 MHz. This deterministic pipeline simplifies real-time control loops and avoids the fetch-decode bottleneck of von Neumann designs. The 8-bit datapath keeps code density high for bit-oriented and byte-oriented tasks. Typical applications include industrial sensor interfaces, motor control front-ends, low-cost automotive body controllers, HVAC control boards, and consumer appliance mainboards. The wide operating voltage and strong peripheral set make it a frequent choice for upgrading older PIC16 designs needing more memory. When designing with this MCU, observe the in-circuit serial programming (ICSP) voltage requirements and ensure decoupling is placed within 5 mm of the supply pins. The 5V-only range means it is not directly drop-in compatible with 3.3V-only systems without level translation. This page consolidates distributor pricing, drop-in alternatives, and practical design notes beyond the manufacturer datasheet.

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PIC18F442T-I/PT - 8-bit MCU, 16KB Flash, 44-TQFP | Microchip
PIC18F442T-I/PT

PIC18F442T-I/PT - 8-bit MCU, 16KB Flash, 44-TQFP | Microchip

The Microchip Technology PIC18F442T-I/PT is a 10 MIPS, 8-bit CMOS flash microcontroller with 16KB program memory, 768 bytes RAM, and 256 bytes EEPROM, housed in a 44-pin TQFP (10x10 mm) package. It runs at up to 40 MHz clock speed, executes instructions in 100 ns, supports 4.2V to 5.5V single-supply operation, and provides 34 digital I/O pins with nanoWatt power management. What is a PIC18F microcontroller? The PIC18F family is Microchip's enhanced 8-bit RISC architecture, succeeding the PIC16 mid-range line with a 16-bit instruction word, hardware multiplier, linear memory map, and C-friendly compiler support. The PIC18F442 specifically targets 40/44-pin applications needing on-chip 10-bit ADC, multiple timers, and USB-/CAN-free general-purpose connectivity at industrial temperature ranges. It belongs to the broader category of microcontrollers (MCU) -> embedded controllers -> integrated circuits -> semiconductors. Key differentiating features include 16KB self-programmable flash, 10-bit ADC up to 8 channels, two analog comparators, a USART with LIN support, MSSP (SPI/I2C), two capture/compare/PWM modules, and nanoWatt Technology for low-power sleep modes drawing under 1 uA. The 40 MHz oscillator provides 10 MIPS throughput, while 77 single-word instructions simplify assembly programming and reduce code footprint. The architecture is a Harvard-style RISC core with separate program and data buses, 31-level hardware stack, and an 8x8 hardware multiplier for efficient arithmetic operations. It is fully upwards compatible with PIC16C5X, PIC16CXX, PIC17CXX, and PIC12CXXX source code, enabling seamless code migration from legacy Microchip designs. Typical applications include industrial control panels, HVAC actuator controllers, automotive body electronics, sensor signal conditioning nodes, low-end consumer appliances, and educational embedded kits. The 44-TQFP package is suitable for compact PCB layouts that need a high pin count without exceeding 1 square inch of board area. When designing with this MCU, reserve at least one analog pin for VREF+ if ADC accuracy matters, and pair the internal 8 MHz RC oscillator with the PLL only if peripheral timing tolerates up to +/- 2% jitter. In-system programming via ICSP requires RB6/RB7 to remain dedicated. This page synthesizes distributor pricing, parametric cross-references, and engineering design notes that complement - but do not replace - the manufacturer datasheet (DS39564 family).

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PIC18F4431-E/ML - 8-bit 40MHz MCU, 16KB Flash, QFN-44 | Microchip
PIC18F4431-E/ML

PIC18F4431-E/ML - 8-bit 40MHz MCU, 16KB Flash, QFN-44 | Microchip

The Microchip Technology PIC18F4431-E/ML is an 8-bit enhanced flash microcontroller from the PIC18F family, featuring a 40 MHz CPU core delivering up to 16 MIPS of processing throughput, 16 KB of on-chip flash program memory (8K x 16) and 768 bytes of RAM, packaged in a 44-pin QFN (8x8 mm) with an exposed thermal pad. The '-E/ML' suffix indicates the extended industrial temperature grade (-40C to +125C) and the lead-free matte-tin QFN-44 package. What is a PIC18F microcontroller? The PIC18F is a high-performance 8-bit RISC architecture family from Microchip Technology, belonging to the broader microcontroller > embedded MCU > semiconductor hierarchy. PIC18F parts use a Harvard architecture with separate program and data buses, an instruction set optimized for C code generation, and Microchip's nanoWatt power-management technology for low-power applications. Key features of the PIC18F4431 include four enhanced PWM channels with up to 14-bit resolution, a 10-bit A/D converter with up to 9 input channels, a 40 MHz oscillator (10 MHz internal RC), nanoWatt power management with idle and sleep modes, and 34 digital I/O pins. The device integrates a 10-bit ADC, two analog comparators, a USART, an SPI/I2C-compatible MSSP module, and a 16-bit timer/counter with capture/compare. The PIC18F4431 implements Microchip's enhanced flash cell technology, supporting self-programming and ICD (in-circuit debug) via two I/O pins, eliminating the need for an external programmer socket. The 44-pin QFN package with exposed pad offers excellent thermal performance for the extended industrial temperature range, and the wide 2.0V to 5.5V VDD range enables both 3.3V and 5V system designs. Typical applications include three-phase AC induction motor control, brushless DC motor drives, switched-mode power supply control, uninterruptible power supplies, and precision industrial automation. The combination of 14-bit PWM resolution and 10-bit ADC makes it well suited for closed-loop digital control loops where resolution and dynamic range are critical. When designing with the PIC18F4431, ensure the exposed thermal pad is soldered to the PCB ground plane for proper heat dissipation, and place the decoupling capacitor (100 nF) within 3 mm of each VDD pin pair. Use MPLAB X IDE with XC8 compiler for development; ICD debugging requires only two pins and no external emulator hardware. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on the manufacturer datasheet. All electrical characteristics are extracted from the Microchip PIC18F2331/2431/4331/4431 datasheet family and verified against DigiKey/Mouser stock records as of 2026-09-27.

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PIC18F4431-E/P - 40MHz 8-bit MCU 16KB Flash 34 I/O | Microchip
PIC18F4431-E/P

PIC18F4431-E/P - 40MHz 8-bit MCU 16KB Flash 34 I/O | Microchip

The Microchip Technology PIC18F4431-E/P is an 8-bit PIC18 microcontroller running at 40 MHz with 16 KB of enhanced flash program memory, 768 bytes of RAM, and 34 digital I/O pins, housed in a 40-pin PDIP (P) package. The '-E' temperature grade extends the operating range to -40C to +125C for industrial and harsh-environment use. An 8-bit microcontroller (MCU) is a small computer-on-a-chip that integrates a CPU, flash memory, RAM, and peripherals onto a single die. The PIC18 family uses an enhanced RISC architecture with 16-bit opcodes and an 8-bit data path, positioning it above baseline PIC16 parts for higher-throughput embedded applications. PIC18F4431 parts add a high-performance Power Control PWM module with dedicated time-base and edge-aligned/center-aligned modes, plus a 10-bit ADC, placing them in the power-management sub-hierarchy of 8-bit MCUs. Key features include 16 KB (8K x 16) of flash, 768 bytes of RAM, 256 bytes of EEPROM, two CCP/ECCP modules, an 8-channel 10-bit ADC, and nanoWatt power management for sleep currents under 1 uA. The part supports ICSP (In-Circuit Serial Programming) and ICD (In-Circuit Debug) via two of the I/O pins. Four timer modules (Timer0/Timer1/Timer2/Timer3) provide capture, compare, and PWM generation, while dedicated motor-control PWM hardware makes the 4431 suitable for switch-mode power supply and brushless-DC control loops. Architecturally the PIC18F4431 uses Harvard memory with separate program and data buses, a 16-bit instruction word, and a hardware multiplier that completes an 8x8 multiply in a single cycle. The Power Control PWM module delivers up to four complementary PWM outputs with programmable dead-band, current-sense input, and a dedicated 16-bit time base, eliminating CPU overhead in closed-loop applications. Typical applications include switch-mode power supplies (SMPS), uninterruptible power supplies (UPS), brushless-DC motor drivers, induction heating controls, lighting ballasts, and general-purpose 5V embedded control. The wide -40C to +125C range also supports automotive under-hood and industrial sensor conditioning. Design tip: place a 100 nF decoupling capacitor as close as possible to each VDD pin and a 10 uF bulk capacitor at the board's supply-entry point. Leave the ICSP/ICD pins (PGC/PGD) accessible on the PCB or via a header for in-circuit debug, as the part cannot be debugged without them. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet. Last verified against the Microchip product page on 2026-09-27.

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PIC18F4431-E/PT - 8-Bit 40MHz 16KB Flash MCU | Microchip
PIC18F4431-E/PT

PIC18F4431-E/PT - 8-Bit 40MHz 16KB Flash MCU | Microchip

The Microchip Technology PIC18F4431-E/PT is an 8-bit PIC18 enhanced flash microcontroller running at up to 40 MHz (10 MIPS) with 16 KB of on-chip flash program memory, 768 bytes of RAM, and 256 bytes of EEPROM, housed in a 44-pin TQFP (10x10 mm) package. The PIC18F4431 family integrates high-performance peripherals including a 14-channel 10-bit ADC, two CCP/ECCP modules with a dedicated 14-bit PWM motion feedback module (Power Control PWM), a USART, MSSP (SPI/I2C), and nanoWatt technology for low-power operation. According to the Microchip datasheet DS39636, the device supports operating voltages of 4.2 V to 5.5 V across an industrial-extended temperature range of -40C to +125C. What is a PIC18 microcontroller? PIC18F-series devices are 8-bit RISC microcontrollers built on Microchip's Harvard architecture with 77 instructions and 16-bit opcodes, providing higher performance and richer peripherals than the legacy PIC16 family. They sit in the broader taxonomy of microcontrollers (MCU) -> 8-bit MCU -> flash MCU -> enhanced flash MCU with nanoWatt technology, and are widely used in cost-sensitive embedded control where deterministic timing, low power, and motor-control PWM are required. Key features of the PIC18F4431-E/PT include 36 digital I/O pins, an enhanced Power Control PWM module with up to six PWM outputs designed for variable-frequency, multi-pole motor drives, a programmable 16-bit timer/counter, two comparators, and a 10-bit ADC with up to 14 input channels. The device also features 4x phase-locked frequency synthesis for flexible oscillator configuration, a wide supply range of 4.2 V to 5.5 V, and nanoWatt power management modes such as sleep, idle, and low-power timer operation. The PIC18F4431-E/PT is widely deployed in variable-frequency motor drives (BLDC, PMSM, ACIM), uninterruptible power supplies (UPS), industrial inverters, and digital power conversion. Its 14-bit dedicated PWM module with hardware fault input and dead-band control makes it particularly well-suited to driving 3-phase motor inverter bridges and high-frequency switching power supplies. The enhanced flash and nanoWatt features allow field-upgradeable firmware with low standby current. Typical applications also include induction cooking controls, ceiling-fan and HVAC blower drives, servo amplifiers, and appliance motor control boards where the integrated motion-feedback module simplifies sensorless or closed-loop torque/speed control. The 44-pin TQFP package and 36 I/O pins leave headroom for user interfaces, encoder inputs, and communication ports. When designing with the PIC18F4431-E/PT, ensure the input supply is well-decoupled with a 100 nF plus 10 uF combination and that the MCLR reset pin is pulled up through a resistor to VDD. The extended temperature grade ('-E' suffix) supports operation up to +125C, so verify thermal headroom in enclosed industrial enclosures. This page synthesizes distributor pricing, drop-in alternatives from the same PIC18 family, and practical design notes not collected in a single place in the manufacturer datasheet.

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PIC18F4431-I/ML - 8-Bit 40MHz 16KB Flash MCU 44-QFN | Microchip
PIC18F4431-I/ML

PIC18F4431-I/ML - 8-Bit 40MHz 16KB Flash MCU 44-QFN | Microchip

The Microchip Technology PIC18F4431-I/ML is an 8-bit PIC18 RISC microcontroller with 16KB (8K x 16) of enhanced Flash program memory, 40 MHz maximum CPU clock, and a high-performance 14-bit enhanced PWM module with complementary outputs, housed in a 44-pin QFN (8x8 mm) package. It operates from 4.2V to 5.5V and provides 34 digital I/O pins plus a 10-bit ADC, making it well suited for motor control and power-conversion applications. What is a PIC18F microcontroller? A PIC18F is a high-performance 8-bit CMOS Flash microcontroller family from Microchip Technology, architected around an enhanced RISC instruction set. PIC18F devices occupy a tier above PIC16F parts in Microchip's product hierarchy: 8-bit microcontroller -> Flash MCU -> PIC18 family -> enhanced Flash MCU with nanoWatt technology. The family is widely deployed in consumer, industrial, and automotive subsystems where deterministic real-time control, low sleep current, and on-chip analog peripherals reduce external component count. Key features of the PIC18F4431 include 16KB Flash with 10,000 erase/write cycles endurance, 768 bytes of RAM, 256 bytes of EEPROM, nanoWatt power management with multiple idle/sleep modes, and a Power Control PWM (PCPWM) module with up to eight complementary outputs and programmable dead-band delay. The 10-bit ADC offers 9 channels with auto-acquisition, and the device includes a USART, MSSP (SPI/I2C), and four 16-bit timers suitable for closed-loop control loops. The PIC18F4431's 44-QFN package exposes 34 I/O lines and integrates a high-current sink/source capability of 25 mA per pin, which simplifies driving power MOSFET bridges through external gate drivers. The 8-bit Harvard architecture executes most instructions in one cycle (4-clock Tcy) at 40 MHz, giving 10 MIPS throughput. Internal Phase-Locked Loop (PLL) options multiply the external crystal up to the operating frequency, while the nanoWatt features reduce standby current below typical battery-monitoring thresholds. Typical applications include BLDC and PMSM motor control, three-phase UPS and inverter stages, switch-mode power supply (SMPS) digital control loops, industrial fan and pump drives, HVAC compressor controllers, and low-end servo positioning. The integrated PCPWM block eliminates an external PWM controller, reducing BOM cost and PCB area in motor-drive designs. When designing with this device, ensure the Vdd/Vss decoupling network uses a 100 nF ceramic capacitor placed within 5 mm of each power pin pair, and a 10 uF bulk tantalum or aluminum-polymer capacitor on each power rail. For high-noise motor environments, add a ferrite bead on the supply line. The MCLR reset pin should be pulled up to Vdd through a 10 kohm resistor, with the optional MCLR capacitor omitted if in-circuit debugging (ICD) is required. This page synthesizes distributor pricing, drop-in alternatives from the PIC18F family, and practical design notes not found in the manufacturer datasheet alone.

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PIC18F4431-I/P - 8-bit MCU, 16KB Flash, 40MHz, 40-PDIP | Microchip
PIC18F4431-I/P

PIC18F4431-I/P - 8-bit MCU, 16KB Flash, 40MHz, 40-PDIP | Microchip

The Microchip PIC18F4431-I/P is an 8-bit PIC18F-family Flash microcontroller running at up to 40 MHz with 16 KB of on-chip program memory (8K x 16) and 768 bytes of RAM, packaged in a 40-pin PDIP through-hole form factor. According to the Microchip product page, it integrates a 10-bit A/D converter, a high-performance PWM module with dedicated motion-control hardware, and nanoWatt power management for sleep-mode current reduction. The supply voltage range is 4.2 V to 5.5 V and 34 digital I/O pins are available in this 40-pin variant. A PIC18F microcontroller is an 8-bit Harvard-architecture MCU built around an enhanced RISC core with a modified instruction set that retains code compatibility with the earlier PIC16 family while adding linear memory, 16-bit instructions, and a hardware multiplier. It sits in the broader taxonomy: microcontroller -> embedded processor -> semiconductor. PIC18F parts are typically used in applications that need more compute, RAM, and peripherals than PIC16F MCUs but do not justify a 16-bit dsPIC33 or 32-bit ARM Cortex-M0 device. Key features include a 40 MHz internal/external oscillator block, two 8-bit timers plus three 16-bit timers, two capture/compare/PWM modules, an enhanced USART, an MSSP (SPI/I2C) port, a 10-bit A/D with up to 9 channels, and a parallel slave port. The integrated Power Control PWM module provides up to six PWM channels with hardware fault inputs, which is unusual for a general-purpose 8-bit MCU and makes the PIC18F4431 especially suited to motor and motion control loops. On-chip debug and In-Circuit Serial Programming (ICSP) are supported through two dedicated pins. The device operates across an industrial temperature range of -40C to +85C (denoted by the 'I' suffix) and uses the standard 40-pin PDIP pinout shared with several other PIC18F44xx parts. Compliance includes RoHS status per Microchip's product page and standard PIC18F nanoWatt low-power operating modes such as Sleep, Idle, and oscillator switching. Typical applications include BLDC and PMSM motor control (the Power Control PWM and 9-channel 10-bit ADC are tuned for closed-loop FOC), HVAC fan and pump control, and industrial sensor conditioning. The 5V-tolerant digital I/O simplify interfacing to legacy 5 V analog front-ends and opto-isolated gate drivers. When designing with this device, pay attention to the ICP/ICSP pin allocation: PGD/PGC must remain accessible for in-circuit programming and debugging. Decouple VDD/VSS pairs locally and follow Microchip's PIC18F4531/4431 errata guidance for the Power Control PWM module startup sequence. This page synthesizes verified distributor pricing, parametric alternatives from the same PIC18F family, and design notes not consolidated on any single distributor page.

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PIC18F4431-I/PT - 8-bit MCU, 16KB Flash, 40MHz, 44-TQFP | Microchip
PIC18F4431-I/PT

PIC18F4431-I/PT - 8-bit MCU, 16KB Flash, 40MHz, 44-TQFP | Microchip

The Microchip Technology PIC18F4431-I/PT is an 8-bit PIC18 enhanced flash microcontroller running at up to 40 MHz, integrating 16 KB (8K x 16) of program flash, 768 bytes of RAM, and 256 bytes of EEPROM in a 44-pin TQFP (10x10 mm) package. It is part of the PIC18F2331/2431/4331/4431 family designed for high-performance motor control and power-conversion applications, featuring an enhanced 14-bit power-control PWM module with up to 8 channels and complementary outputs with programmable dead-band control. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path that fetches, decodes, and executes instructions from on-chip program memory. Within the broader taxonomy, an 8-bit MCU sits below 16-bit and 32-bit MCUs in computational throughput, but offers deterministic interrupt latency, low cost, and ultra-low power modes that suit real-time control loops. The PIC18 family is Microchip's mid-range 8-bit line, positioned between the baseline PIC10/12/16 families and the high-performance dsPIC digital signal controllers, and is widely used in industrial, appliance, and automotive body/comfort subsystems. Key features include nanoWatt technology power management with multiple idle and sleep modes, a 10-bit ADC with up to 9 channels and auto-acquisition, multiple serial interfaces (AUSART, MSSP SPI/I2C), and 34 digital I/O pins with interrupt-on-change capability. The integrated 14-bit PWM module supports center-aligned or edge-aligned operation, fault inputs, and dedicated trigger signals for A/D conversion, making the device particularly well suited for closed-loop motor control. The architecture uses an 8-bit Harvard design with a 16-bit instruction word, an 8-level hardware stack, and a C compiler-friendly instruction set; the chip operates from 4.2 V to 5.5 V and is rated for the industrial -40 C to +85 C temperature range, indicated by the "-I" designator. In-circuit debug is supported via the ICD/ICSP interface, and the device is compatible with MPLAB X IDE and the MPLAB XC8 compiler. Typical applications include BLDC and PMSM motor drives, sensored and sensorless fan/pump controllers, switched-mode power supply (SMPS) digital control loops, uninterruptible power supplies, induction-cooktop and induction-heater power stages, and HID lighting ballasts. When designing with this device, ensure that the high-current switching outputs use proper PCB thermal relief and that the PWM fault pins are wired to a hardware-safe state at power-up to avoid unintended switching events.

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PIC18F4439-E/ML - 8-bit MCU, 12KB Flash, 40MHz, Motor Control | Microchip
PIC18F4439-E/ML

PIC18F4439-E/ML - 8-bit MCU, 12KB Flash, 40MHz, Motor Control | Microchip

The Microchip Technology PIC18F4439-E/ML is an 8-bit PIC18F-family microcontroller with 12KB of enhanced Flash program memory, 640 bytes of SRAM, and an integrated single-phase induction motor control kernel, housed in a 44-pin QFN (ML) package. It executes instructions at up to 40 MHz (10 MIPS) from a 4.2V to 5.5V supply and provides 36 general-purpose I/O pins, a 10-bit ADC with up to 13 channels, CCP/PWM/Enhanced PWM peripherals, and nanoWatt Technology power management. The automotive "-E" temperature grade supports -40C to +125C operation. What is a PIC18F microcontroller? The PIC18F is Microchip's high-performance 8-bit RISC architecture, positioned in the product hierarchy as: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor IC. It uses a 16-bit instruction word with Harvard bus architecture and adds enhanced peripherals (CAN, USB, Ethernet, motor-control PWM) over the baseline PIC16F family, while remaining fully code-compatible with PIC16F legacy code in most cases. Key features include the dedicated single-phase induction motor control kernel (Motion Feedback Module, 14-bit Power Control PWM with up to 6 outputs, and quadrature encoder interface), which offloads commutation and PFC control from the CPU. The 10-bit ADC supports up to 13 input channels with auto-acquisition, while nanoWatt Technology provides multiple idle/sleep modes with currents below 1 microamp. The 44-QFN package offers a compact 8 mm x 8 mm footprint with an exposed thermal pad, suitable for space-constrained motor drive PCBs. The device uses Microchip's enhanced Harvard architecture with a hardware multiplier and 32-level hardware stack. Flash memory supports self-programmability under firmware control (ICSP) and the device retains data in EEPROM over the full automotive temperature range, making it suitable for field-retrofittable motor inverters. Typical applications include single-phase induction motor drives (HVAC fans, washer pumps, refrigerator compressors), industrial motor control, sensor-less fan/blower controllers, and white-goods inverter boards. The 14-bit PWM resolution is sufficient for sinewave commutation at line frequencies up to 60 Hz, while the automotive temperature grade allows use in under-hood and outdoor enclosures. When designing with this part, dedicate a contiguous 4-layer ground pour beneath the QFN pad to meet the 32 C/W theta-JA thermal budget at full 40 MHz operation. Add a 0.1 microfarad decoupling capacitor at every VDD/VSS pair within 2 mm of the pin and route the 14-bit PWM outputs away from analog ADC inputs to minimise switching coupling. This page synthesises distributor pricing, drop-in alternative MPNs from the same PIC18F motor-control family, and practical design notes that supplement - but do not replace - the manufacturer datasheet.

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PIC18F4439-E/P - 8-Bit 40MHz MCU 12KB Flash 40-DIP | Microchip
PIC18F4439-E/P

PIC18F4439-E/P - 8-Bit 40MHz MCU 12KB Flash 40-DIP | Microchip

The Microchip Technology PIC18F4439-E/P is an 8-bit PIC18-family microcontroller with 12KB of Flash program memory, 40 MHz maximum clock speed, and a 40-pin PDIP (DIP-40) through-hole package. It integrates a 10-bit A/D converter, nanoWatt Technology power management, and a sophisticated motor-control kernel targeted at single-phase induction motor control applications. The device operates from 4.2V to 5.5V and exposes 36 I/O ports. An 8-bit microcontroller (MCU) is a self-contained computing element that integrates a CPU core, program memory, RAM, non-volatile data storage, and a range of peripherals on a single silicon die. Within the broader semiconductor taxonomy it sits at: MCU -> microcontroller -> embedded processor -> semiconductor device. The PIC18 family from Microchip Technology uses an enhanced Harvard RISC architecture with 16-bit wide instructions and a 8-bit data path, which simplifies compiler code generation while delivering deterministic interrupt response. Key features include 12KB Flash program memory organized as 6K x 16 words, the motor-control PWM module with dedicated motion-feedback interfaces, four 16-bit timer/counters, two analog comparators, and the nanoWatt Technology power-managed sleep modes that allow the device to wake on interrupt while drawing microamp-level standby current. The 'E' suffix denotes the extended industrial temperature grade (-40C to +125C), distinguishing it from the 'I' (-40C to +85C) variant. The PIC18F4439 architectural advantage is its integrated single-phase motor-control kernel (with Power Control PWM and Motion Feedback Module), which removes the need for an external DSP or dedicated motor-controller IC in fan, pump, and small compressor drive designs. Combined with 10-bit ADC, 36 I/O, and nanoWatt Technology, it gives designers a one-chip analog/digital/motion platform. Typical applications include single-phase induction motor control (fans, pumps, compressors), white goods (washing machines, dishwashers, refrigerators), HVAC blowers, small industrial drives, and general-purpose 5V embedded control with motor actuation. The extended -40C to +125C temperature range and through-hole PDIP package make it especially suited to hobbyist, prototyping, and rugged industrial enclosures. When designing with this part, verify that the 4.2V to 5.5V supply range matches your system rail; if 3.3V operation is needed, select the 'LF' low-voltage variant instead. Always place a 100 nF decoupling capacitor within 5 mm of each VDD/VSS pair and ensure the MCLR reset network follows Microchip's recommended RC values for reliable power-on behavior. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, providing an at-a-glance engineering comparison for PIC18F4439-E/P selection, replacement, and sourcing decisions.

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PIC18F4439-E/PT - 40MHz 8-bit MCU 12KB Flash 44-TQFP | Microchip
PIC18F4439-E/PT

PIC18F4439-E/PT - 40MHz 8-bit MCU 12KB Flash 44-TQFP | Microchip

The Microchip Technology PIC18F4439-E/PT is an 8-bit PIC microcontroller with 12KB of Flash program memory, 640 bytes of RAM, and a 40 MHz maximum operating frequency, housed in a 44-pin TQFP (PT) package. The '-E' suffix denotes the extended industrial temperature grade (-40C to +125C), and the '/PT' suffix identifies the TQFP-44 surface-mount package. The part targets motor-control and high-performance embedded applications, integrating a dedicated motor-control PWM kernel, a 10-bit A/D converter with up to 9 channels, and multiple capture/compare/PWM modules. A PIC microcontroller (peripheral interface controller) is a compact, programmable processor that integrates CPU, non-volatile program memory, working RAM, and configurable I/O peripherals on a single silicon die. PIC microcontrollers belong to the microcontroller -> embedded processor -> semiconductor hierarchy, and the 'F' in PIC18F indicates Flash-based (reprogrammable) program memory. The PIC18 architecture is Microchip's high-performance 8-bit family, featuring an enhanced 16-bit instruction set, hardware multiplier, and a linear program memory map up to 2 MB, making it well suited for real-time control loops where deterministic interrupt latency matters. Key features of the PIC18F4439 include 12KB Flash, 640 bytes RAM, 256 bytes EEPROM, 32 to 36 general-purpose I/O pins, a 10-bit ADC with 9 input channels and up to 8 channels of motor-control PWM, four 16-bit timers, two capture/compare/PWM modules, and a USART. NanoWatt Technology provides multiple power-managed operating modes (Run, Idle, Sleep, and a low-power Timer1 oscillator) to extend battery life. The supply voltage range of 4.2 V to 5.5 V suits 5V-only industrial and appliance designs. Architecturally, the PIC18F4439 employs a 16-bit instruction word Flash pipeline, a single-cycle hardware multiplier, and a vectored interrupt controller with prioritized sources for deterministic real-time response. The Power Control PWM module is the distinguishing feature: a 14-bit-resolution, multi-channel PWM engine designed specifically for single-phase induction motor (SPIM) commutation, BLDC control, and switch-mode power conversion. This dedicated hardware offloads commutator timing from the CPU, allowing the software stack to handle supervisory tasks. Typical applications include single-phase induction motor control in washing machines, fans, and pumps, BLDC and PMSM motor control in appliance drives, switched-mode power supply (SMPS) controllers, white goods and HVAC fan controllers, and industrial control boards requiring precise timer-driven PWM. The extended-temperature grade makes it suitable for under-hood automotive auxiliaries and outdoor industrial cabinets. Compared with PIC18F2431/4431 devices, the PIC18F4439 adds ECCP (Enhanced Capture/Compare/PWM) hardware, dead-band control, and a programmable center-aligned PWM mode for advanced motor commutation. When designing with the PIC18F4439, allocate PCB area for the four power-ground pins and route the PWM output traces away from sensitive analog inputs. Place a 0.1 uF ceramic decoupling capacitor on each VDD/VSS pair as close to the IC as physically possible, and keep the analog AVdd/AVss pair decoupled separately with its own 10 uF bulk plus 0.1 uF high-frequency bypass. Configure the MCLR pin with a 10 kohm pull-up to VDD for reliable reset behavior. This page synthesizes distributor pricing, drop-in PIC18F-family alternatives in the same 44-TQFP package, and practical design notes that go beyond what is printed in the manufacturer datasheet, helping engineers select, source, and integrate the PIC18F4439-E/PT efficiently.

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PIC18F4439-I/ML - 8-Bit 40MHz 12KB Flash MCU | Microchip
PIC18F4439-I/ML

PIC18F4439-I/ML - 8-Bit 40MHz 12KB Flash MCU | Microchip

The Microchip Technology PIC18F4439-I/ML is an 8-bit PIC18F microcontroller IC integrating a 40 MHz CPU, 12 KB (6K x 16) of Flash program memory, 640 bytes of SRAM, and 256 bytes of EEPROM in a 44-pin VQFN (8x8 mm) package with exposed thermal pad. It is purpose-built for single-phase induction motor control, embedding a dedicated motor-control PWM kernel, a 14-channel 10-bit ADC, and a 32-bit position counter usable as a feedback channel for sensorless or encoder-based FOC loops. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, common in cost-sensitive embedded designs. The PIC18F family sits in the hierarchy of microcontrollers -> 8-bit MCUs -> PIC microcontrollers -> PIC18F -> motor-control PIC18F. Flash program memory allows field re-programming, while on-chip EEPROM supports non-volatile parameter storage - a common requirement for motor-drive calibration constants, fault logs, and runtime trim values. Key features include 32 general-purpose I/O pins, four timer modules, two Capture/Compare/PWM (CCP) peripherals plus an Enhanced CCP (ECCP) module with auto-shutdown and dead-band control, a USART with LIN support, and an I2C/SPI master-slave port. The motor-control PWM block delivers up to 14-bit resolution with independent fault inputs and programmable dead time, supporting center-aligned, edge-aligned, and push-pull modes commonly required by single-phase induction motor drive stages. Typical applications include single-phase induction motor drives (PMSM/ACIM fans, pumps, and small appliances), variable-frequency washing-machine controllers, BLDC and PMSM sensorless trapezoidal drives, and small appliance inverter platforms. The industrial (-40C to +85C) operating range, on-chip op-amps for current sensing, and integrated 10-bit ADC simplify the analog front-end around the power stage. When designing, allocate board area for the exposed pad thermal via array directly under the package to keep junction temperature in spec at sustained 40 MHz operation. Use the ICD 3 / ICD 5 / PICkit 4 debuggers with the standard ICSP six-pin header; firmware development is supported by MPLAB X IDE, MCC code generator, and the MPLAB XC8 compiler. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, giving engineers a single reference point for selection, sourcing, and PCB integration.

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PIC18F4439-I/PT - 8-bit 40MHz 12KB Flash MCU w/ Motor Control | Microchip
PIC18F4439-I/PT

PIC18F4439-I/PT - 8-bit 40MHz 12KB Flash MCU w/ Motor Control | Microchip

The Microchip Technology PIC18F4439-I/PT is an 8-bit RISC microcontroller in the PIC18F family that integrates a sophisticated motor-control kernel with Flash program memory, designed specifically for single-phase induction motor control and other real-time control applications. It operates at up to 40 MHz, supplies 12 KB of Flash program memory, and is housed in a 44-pin TQFP (PT) package rated for the industrial temperature range. The PIC18F family of microcontrollers (MCU) is an 8-bit C-compiler-friendly architecture that combines high computational performance with rich on-chip peripherals. Within this family, the PIC18F4439 belongs to the PIC18FXX39 subgroup that adds a dedicated motion-feedback PWM kernel, a quadrature encoder interface, an input-capture module, and 8 channels of 10-bit analog-to-digital conversion - features that target closed-loop motor-control and switched-mode power-conversion designs. Key specifications include 40 MHz maximum clock speed, 12 KB (typically 6K x 16) of self-programmable Flash with 256 bytes of EEPROM, 768 bytes of SRAM, 36 user I/O lines, a 10-bit ADC with eight channels, dual PWM outputs suitable for full-bridge or three-phase topologies, and an ICD (In-Circuit Debugger) interface. The device supports supply voltages from 4.2 V to 5.5 V and runs the standard PIC18 instruction set, enabling code reuse across the PIC18 portfolio. Architecturally, the PIC18F4439 integrates the PIC18 RISC core with hardware multiply and a hardware motor-control PWM module featuring dedicated time bases and edge-aligned/center-aligned modes. This combination lets the engineer's firmware maintain deterministic control loop timing without loading the CPU, which is essential for sinusoidal commutation of single-phase induction motors and variable-frequency drives. Typical applications include single-phase induction motor drives, appliance fan and pump controllers, BLDC and PMDC motor controllers, digital inverters, uninterruptible power supplies, switched-mode power supplies, and industrial automation boards that require deterministic PWM and precise feedback sampling. When designing with this part, follow the datasheet decoupling guidance: place one 100 nF ceramic bypass capacitor adjacent to each VDD/VSS pair and a bulk capacitor at the regulator output. For motor-control layouts, keep the high-current switching traces away from the analog AVSS/AVDD traces to avoid ground-bounce noise coupling into the ADC result register. The PIC18F4439-I/PT is the industrial-temperature variant (-40 C to +85 C); the PIC18F4439-E/PT extends this to the extended grade while the PIC18LF4439-I/PT supports lower voltage operation for battery-aware designs. This page consolidates datasheet specifications, distributor pricing as of 2026-09-27, and verified drop-in alternatives from Microchip's PIC18F family so that engineers can make a faster sourcing and design-in decision than by reading dozens of separate vendor pages.

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PIC18F4439T-E/ML - 8-bit Motor Control MCU, 12KB Flash, 44-QFN | Microchip
PIC18F4439T-E/ML

PIC18F4439T-E/ML - 8-bit Motor Control MCU, 12KB Flash, 44-QFN | Microchip

The Microchip PIC18F4439T-E/ML is an 8-bit Flash microcontroller from the PIC18F family, engineered specifically for single-phase induction motor control. It features 12 KB of Flash program memory, 640 bytes of RAM, 32 I/O pins, and is housed in a 44-pin QFN (ML) surface-mount package. The device operates across the extended -40C to +125C industrial temperature range and is supplied in Tape & Reel (T/R) packaging for high-volume assembly. A PIC18F microcontroller is an 8-bit Harvard-architecture MCU that combines a RISC-like instruction set with on-chip Flash, EEPROM, RAM, and a rich set of peripherals including timers, ADC, PWM, and communication interfaces. Within the broader taxonomy, PIC18F devices sit between baseline PIC16 parts and the 16-bit dsPIC/PIC24 families, and they belong to the wider category of embedded microcontrollers -> microcontrollers -> standard ICs. Microchip's PIC18F series is widely used for motor control, sensing, and general-purpose embedded designs. The PIC18F4439 integrates a sophisticated motor-control kernel with dedicated PWM and ADC triggering hardware optimized for single-phase induction motor drives. Key parameters verified from the manufacturer datasheet include 12 KB Flash, 640 bytes RAM, a 44-QFN package, and the -E (extended) temperature grade. The device supports Microchip's ICD in-circuit debugging and ICSP programming, accelerating firmware iteration. Architecturally, the PIC18F4439 uses an enhanced 8-bit core with a 16-bit instruction word and a hardware multiplier, providing predictable interrupt response for real-time motor control loops. The on-chip motor-control peripherals include a Power Control PWM module with configurable dead-band control and an ADC that can be triggered synchronously to PWM edges for precise current sampling. Typical applications include single-phase induction motor drives (fans, pumps, compressors), white-goods appliance control, small HVAC blowers, and low-cost BLDC/PMSM positions where the integrated kernel reduces firmware complexity. It is also used in industrial sensor signal conditioning and consumer appliance main control boards. When designing with this device, ensure the 44-QFN thermal pad is properly soldered to a sufficiently large copper pour to keep junction temperature within the -40C to +125C range at full CPU load. The integrated motor-control kernel can substantially reduce firmware development time but engineers should still validate current-sampling timing on the actual motor load. This page consolidates distributor pricing, same-family Microchip drop-in alternatives, and practical design notes specific to the PIC18F4439T-E/ML, complementing the manufacturer datasheet with engineering context not found on generic distributor pages.

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PIC18F4439T-E/PT - 8-bit MCU 12KB Flash 40MHz TQFP-44 | Microchip
PIC18F4439T-E/PT

PIC18F4439T-E/PT - 8-bit MCU 12KB Flash 40MHz TQFP-44 | Microchip

The Microchip Technology PIC18F4439T-E/PT is an 8-bit enhanced Flash microcontroller with 12 KB of program memory, 40 MHz CPU clock, and 36 I/O pins in a 44-pin TQFP package. It is part of the PIC18F family engineered for single-phase induction motor control and offers nanoWatt power management with a 10-bit A/D converter. Key features include 12 KB Flash program memory, 336 bytes of general-purpose RAM, a 10-bit Analog-to-Digital converter with multiple channels, and an integrated Power Control PWM module tailored for variable-speed motor drive topologies. The wide 4.2V to 5.5V supply range, automotive-grade -40C to +125C operating temperature, and 40 MHz maximum clock rate make it suitable for harsh industrial and automotive environments. The TQFP-44 (PT) surface-mount package supports compact PCB layouts while providing ample I/O for motor control loops and sensing. The PIC18F4439T-E/PT utilizes Microchip's enhanced PIC18 RISC architecture with a modified Harvard memory layout. This architecture includes hardware multiply, single-cycle access to RAM, and a deterministic interrupt structure, simplifying real-time motor control firmware development. The on-chip PWM module with dedicated time base, dead-band control, and fault inputs is purpose-built for single-phase induction motor (SPIM) commutation, replacing external analog control loops with deterministic firmware execution. Typical applications include single-phase induction motor controllers, variable-speed fan drives, compressor control boards, white-goods appliance motor drives, and industrial pump controllers. The automotive-grade (-E) temperature range and PWM-on-the-fly features also suit EV auxiliary pumps and HVAC blower modules. Combined with the nanoWatt sleep modes, the part fits battery-backed and energy-efficient appliance platforms. When designing with the PIC18F4439T-E/PT, ensure external crystal or resonator selection matches the chosen PLL configuration and that the PWM fault inputs are properly bonded to protect the gate drivers. The enhanced Flash supports in-circuit serial programming (ICSP) via two dedicated pins, so allocate a programming header footprint even on production boards to enable field firmware updates.

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PIC18F4439T-I/ML - 8-bit MCU, 12KB Flash, 40MHz, QFN-44 | Microchip
PIC18F4439T-I/ML

PIC18F4439T-I/ML - 8-bit MCU, 12KB Flash, 40MHz, QFN-44 | Microchip

The Microchip Technology PIC18F4439T-I/ML is an 8-bit Flash microcontroller in the PIC18F family, integrating 12KB of program memory, 640 bytes of RAM, and 36 I/O pins in a 44-pin QFN (ML) package with an exposed thermal pad. It operates from a 4.2V to 5.5V supply at up to 40 MHz and is built around an enhanced Harvard architecture tailored for single-phase induction motor control and other high-performance embedded control tasks. What is a PIC18F microcontroller? The PIC18F family is a high-performance 8-bit RISC MCU line from Microchip Technology that pairs a modified Harvard core with on-chip Flash, EEPROM, and a rich peripheral set, bridging the gap between classic PIC16F parts and 16-bit dsPIC devices. Within the broader taxonomy, the PIC18F sits as: 8-bit MCU -> PIC microcontroller -> Microchip MCU portfolio -> embedded semiconductor. The 'F' suffix denotes Flash program memory, 'I' denotes the industrial temperature grade (-40C to +85C), and 'ML' is the QFN-44 package code. Key features include 12KB (6K x 16) of Flash program memory, 640 bytes of data RAM, 256 bytes of EEPROM, a 10-bit ADC with up to 8 channels, and a dedicated motor-control PWM kernel with Power Control PWM (PCPWM) modules, a 16-bit Capture/Compare/PWM block, and quadrature encoder interfaces. Additional peripherals include two USART modules, an MSSP (SPI/I2C) port, an enhanced CCP module, and nanoWatt power management features. The QFN-44 exposed-pad package delivers a typical theta-JA around 24 C/W when properly soldered to a thermal land, supporting continuous operation at 40 MHz with full peripheral activity. Typical applications include single-phase induction motor drives (fans, pumps, compressors), brushless DC (BLDC) and switched-reluctance motor control, white-goods appliances (washing machines, refrigerators, range hoods), industrial HVAC blowers, and sensor-conditioned IoT edge nodes. The integrated motor-control kernel eliminates the need for an external DSP or FPGA for sinusoidal commutation and field-oriented control entry-level designs. Design consideration: the QFN-44 exposed pad MUST be soldered to a thermal land on the PCB (Microchip TB040/TC040 thermal pattern recommended) to meet the rated thermal performance; otherwise the die will derate under sustained 40 MHz operation. Use the MPLAB X IDE with the XC8 compiler and configure the ICD3/ICD4 or PICkit 4 for in-circuit debugging via the ICSP header. For drop-in migration to PIC18F4431 or PIC18F2439 parts, verify the peripheral map against the target datasheet.

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PIC18F4439T-I/PT - 8-bit MCU 40MHz 12KB Flash 44-TQFP | Microchip
PIC18F4439T-I/PT

PIC18F4439T-I/PT - 8-bit MCU 40MHz 12KB Flash 44-TQFP | Microchip

The Microchip Technology PIC18F4439T-I/PT is an 8-bit PIC18F-series enhanced Flash microcontroller (MCU) running up to 40 MHz, with 12 KB of program Flash (6K x 16 words), 640 bytes of RAM, and 44 pins housed in a 44-TQFP (10x10 mm) surface-mount package supplied on tape and reel. Operating voltage is 4.2 V to 5.5 V with industrial -40C to +85C temperature grade, and the silicon integrates 36 I/O lines plus on-chip peripherals such as a 10-bit ADC, timers, PWM, USART, and nanoWatt power-management technology. An 8-bit PIC18 microcontroller is a Harvard-architecture RISC CPU that executes one instruction per clock cycle (except branches), running from internal Flash and offering flexible peripheral integration for embedded control. Within the broader semiconductor taxonomy, the PIC18F4439 belongs to the PIC18F family of enhanced Flash MCUs, which sits in the PIC microcontroller hierarchy (PIC10/12/16/18/24/32) and ultimately in the microcontroller category of integrated circuits used for embedded system design. Key features include 12 KB Flash program memory, 640 bytes RAM, 10-bit A/D converter, 36 digital I/O pins, 40 MHz max CPU clock (10 MIPS instruction throughput), wide 4.2-5.5 V supply range, and nanoWatt Technology for reduced active and sleep currents. Peripherals include multiple timers with Power Control PWM (PCPWM), capture/compare/PWM modules, USART, SSP/SPI/I2C, and on-chip EEPROM emulation - features that distinguish it from simpler PIC16 devices and make it suitable for closed-loop control. Architecturally, the PIC18F4439 adds the enhanced instruction set of the PIC18 family (16-bit instructions, linear memory map, hardware multiplier) and includes a 14-bit instruction width optimized for C-compiled code via MPLAB XC8. Power Control PWM is a key differentiator: it provides dedicated hardware for variable-frequency drives and three-phase motor commutation, eliminating the software overhead typical of general-purpose PWM modules. Typical applications include motor control (BLDC, PMSM, AC induction), industrial automation, automotive body and powertrain subsystems, sensor-conditioning front ends, and consumer appliance control. When designing with this device, confirm that the 44-TQFP footprint, I/O count, and PWM channel configuration match the target board - the PIC18F4439 is pin-compatible with several PIC18F4xxx siblings and many newer PIC18F-K parts in the same TQFP-44 land pattern. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, helping engineers compare PIC18F4439T-I/PT against modern PIC18F-K and dsPIC33F motor-control parts side by side.

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PIC18F4450-I/P - 8-bit 48MHz 16KB Flash USB MCU | Microchip
PIC18F4450-I/P

PIC18F4450-I/P - 8-bit 48MHz 16KB Flash USB MCU | Microchip

The Microchip Technology PIC18F4450-I/P is an 8-bit RISC microcontroller from the PIC18F family that integrates a Full-Speed USB 2.0 (12 Mbit/s) transceiver and 16 KB of enhanced Flash program memory in a 40-pin PDIP through-hole package. Operating at up to 48 MHz system clock from a 4.2 V to 5.5 V supply, the device delivers approximately 16 MIPS throughput and combines a 10-bit ADC with up to 13 channels, a USART, MSSP (SPI/I2C), nanoWatt power management, and a 35-pin I/O complement. What is a PIC18F microcontroller? PIC18F is Microchip's enhanced 8-bit PIC microcontroller family, positioned between the baseline PIC16 and the 16-bit dsPIC families in Microchip's portfolio. These parts share a RISC Harvard architecture, a unified instruction set, and a powerful peripheral set, making them ideal for embedded control applications that require deterministic interrupt response, low power, and easy migration between pin counts. The 4450 sub-family specifically adds an on-chip USB 2.0 Full-Speed transceiver and is targeted at applications such as human-interface devices, USB-to-UART bridges, and embedded hosts that previously required an external USB controller. Key features include 16 KB (8K x 16) Flash program memory, 768 bytes of RAM, 256 bytes of EEPROM, 34 digital I/O pins, 13 10-bit ADC channels, two 8-bit timers and three 16-bit timers, a Capture/Compare/PWM module, hardware USB 2.0 Full-Speed with internal pull-up resistor, and nanoWatt power-saving modes with idle and sleep states drawing only microamps. The 40-pin PDIP (0.600 inch) package allows hand-soldering, breadboarding, and socketed prototypes. The architecture uses an 8-bit data path with a 16-bit instruction word and a hardware multiplier for single-cycle 8x8 multiplication. The integrated USB SIE handles bus enumeration, bulk/interrupt/isochronous endpoints, and suspend/resume signaling, eliminating external transceivers. On-chip peripherals are prioritized via a vectored interrupt controller with two priority levels, allowing deterministic real-time response for USB traffic and motor-control PWM. Typical applications include USB human-interface devices (HID mice, keyboards, custom peripherals), USB-to-serial converter dongles, low-cost data loggers, sensor read-out boards, industrial control panels, and educational/training boards where the through-hole package simplifies lab work. When designing with the PIC18F4450, supply decoupling of at least 100 nF near each power pin and a 10 uF bulk capacitor on VDD is essential, and the USB D+/D- traces must be 90 ohm differential and length-matched. The internal 48 MHz PLL is enabled by configuration fuses and requires the HS or HSPLL oscillator mode for USB operation; an external 4, 8, 12, 16, 20, 24, or 48 MHz crystal with appropriate load capacitors must be selected per the oscillator configuration fuse settings. This page synthesizes distributor pricing, drop-in same-package alternatives, comparison parameters, and practical design notes not collated on a single distributor product page.

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PIC18F4450T-I/ML - 48MHz 8-bit USB MCU, 16KB Flash | Microchip
PIC18F4450T-I/ML

PIC18F4450T-I/ML - 48MHz 8-bit USB MCU, 16KB Flash | Microchip

The Microchip Technology PIC18F4450T-I/ML is an 8-bit PIC18F-family RISC microcontroller with integrated Full-Speed USB 2.0, 16KB of Enhanced Flash program memory and 768 bytes of RAM, supplied in a 44-pin QFN (8x8 mm) package with exposed thermal pad. It executes up to 16 MIPS from a 48MHz internal clock and operates from 2.0V to 5.5V across the industrial -40C to +85C temperature range, supporting both 5V and 3.3V system designs. The 'T' suffix denotes tape-and-reel packaging while the 'I' indicates the industrial temperature grade, and 'ML' identifies the QFN-44 (8x8) package. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), working memory (RAM), and programmable peripherals into one package. PIC18F devices belong to Microchip's enhanced 8-bit architecture family, sitting above the baseline PIC16 line and below the 16-bit dsPIC and 32-bit PIC32 families. The PIC18F4450 specifically targets USB-aware embedded designs by combining a Full-Speed USB 2.0 peripheral with nanoWatt power management, making it part of Microchip's "peripheral-rich" legacy USB portfolio. Key features include 16KB Flash organized as 8K x 16 words, 768 bytes of RAM, 256 bytes of EEPROM, a 10-bit ADC with up to 13 input channels, two analog comparators, a Capture/Compare/PWM (CCP) module and an Enhanced CCP module, two USARTs, a Master I2C/SPI port, 34 digital I/O lines, and four timer modules. The integrated Full-Speed USB 2.0 SIE supports 1.5 Mbps Low-Speed and 12 Mbps Full-Speed operation with on-chip transceiver, eliminating the need for external USB PHY components. Architecturally the PIC18F4450 uses an enhanced Harvard RISC core with 16-bit instructions and 8-bit data path, hardware multiplier, 31-level hardware stack, and 75 instructions including multiply and divide. The nanoWatt technology provides multiple power-managed modes (Run, Idle, Sleep, and deep Sleep variants) that reduce quiescent current to microampere levels - a critical feature for battery-powered or USB-suspended devices. The Phase-Locked Loop allows the 48MHz USB clock to be derived from a low-frequency crystal. Typical applications include USB-to-UART bridges, HID-class peripherals (keyboards, mice, game controllers), USB sensors and data loggers, industrial USB instrumentation, bootloader and firmware-update hosts, and point-of-sale terminals. The combination of USB, ADC, and PWM makes it suitable for motor-control USB dongles, lab data acquisition front-ends, and educational embedded platforms that require a direct PC connection. When designing with this part, mind the QFN-44 exposed-pad requirement: the central pad must be soldered to a properly sized ground copper pour for thermal and electrical performance. Use Microchip's MPLAB X IDE and the XC8 compiler for firmware development; the USB stack is provided in the Microchip Libraries for Applications (MLA) framework. Migrating to newer designs may favor PIC18F46J50 or PIC18F4550 families for additional memory, but the PIC18F4450 remains a low-cost Full-Speed USB solution for cost-sensitive legacy products.

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PIC18F4450T-I/PT - 48MHz 8-bit USB MCU 16KB Flash | Microchip
PIC18F4450T-I/PT

PIC18F4450T-I/PT - 48MHz 8-bit USB MCU 16KB Flash | Microchip

The Microchip Technology PIC18F4450T-I/PT is an 8-bit PIC microcontroller from the PIC18F family, featuring a 48MHz CPU core (12 MIPS), 16KB of enhanced flash program memory (8K x 16 words), and a Full-Speed USB 2.0 peripheral, all housed in a 44-pin TQFP package. This tape-and-reel packaged variant is engineered for embedded designs that require a low-cost USB device, A/D conversion, and the rich peripheral set Microchip's PIC18 architecture is known for. The 'T' suffix denotes tape and reel packaging while the 'I' indicates the industrial -40C to +85C temperature range. What is a PIC18F microcontroller? The PIC18F is Microchip Technology's high-performance 8-bit PIC microcontroller family, positioned above the PIC16F series in performance and below the PIC24/dsPIC 16-bit families. PIC18F devices follow the standard PIC taxonomy (microcontroller -> embedded controller -> semiconductor) and integrate flash memory, SRAM, EEPROM, A/D converters, and communication peripherals on a single CMOS die. The 4450 specifically targets USB-enabled human-interface and embedded-host-bridge designs where a full-speed (12 Mbps) USB device port replaces an external transceiver PHY. Key features include an integrated Full-Speed USB 2.0 device controller with on-chip transceiver, 10-bit A/D converter with up to 13 input channels, two 8-bit and three 16-bit timers, two capture/compare/PWM modules, an Enhanced USART, MSSP (SPI/I2C), nanoWatt power management, and a 13-channel 10-bit ADC. The 44-pin TQFP package exposes 34 general-purpose I/O pins. The 5V operating range (4.2V to 5.5V) makes the part suitable for industrial and legacy 5V systems. Program memory is in-circuit serial programmable (ICSP) via two pins, supporting field updates without removing the part from the board. Architecture-wise, the PIC18F4450 employs a Harvard RISC core with separate program and data buses, a hardware multiplier, and an 8-level deep hardware stack, allowing deterministic interrupt latency typical of PIC microcontrollers. The nanoWatt technology includes multiple idle and sleep modes that drop core current to microampere levels, with peripheral activity managed by independent clock gating. The USB SIE (Serial Interface Engine) handles the USB protocol in hardware, offloading packet framing, CRC, and endpoint management from the CPU. Typical applications include USB HID peripherals (keyboards, mice, custom input devices), USB-to-UART bridges, low-cost data loggers with analog sensor inputs, industrial control front-ends with Modbus RTU via RS-485, and consumer electronics with touch or capacitive sensing. The combination of USB, ADC, and 5V tolerance makes it a drop-in upgrade for legacy 5V systems adding modern connectivity. When designing, ensure the VUSB pin is decoupled with a 220nF capacitor as recommended in the Microchip datasheet and that the D+/D- traces are routed as a 90-ohm differential pair. Firmware must initialize the USB PLL and oscillator configuration registers before the SIE will enumerate; review Microchip's USB framework documentation for ready-made HID, CDC, and vendor-class stacks. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes that complement the Microchip datasheet rather than simply restating it.

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PIC18F4455-I/PT - 8-Bit 48MHz 24KB USB MCU 44-TQFP | Microchip
PIC18F4455-I/PT

PIC18F4455-I/PT - 8-Bit 48MHz 24KB USB MCU 44-TQFP | Microchip

The Microchip Technology PIC18F4455-I/PT is an 8-bit PIC18 enhanced Flash microcontroller with integrated Full-Speed USB 2.0, operating at up to 48 MHz (12 MIPS) and housed in a 44-pin TQFP (10x10 mm) package. It features 24 KB of Flash program memory (12K x 16), 2048 bytes of RAM, and 256 bytes of EEPROM. The device operates from 2.0 V to 5.5 V and provides 36 digital I/O pins with peripheral pin select flexibility. What is a PIC18 microcontroller? PIC18 is Microchip's high-performance 8-bit family built on a RISC architecture that delivers up to 16 MIPS performance and uses an enhanced instruction set including a C-friendly flat memory model. Within the broader taxonomy, PIC18F devices sit between baseline PIC10/12/16 families and PIC24/dsPIC16-bit families, offering a balance of low cost, low power (nanoWatt technology), and rich peripherals including USB, CAN, and ADC. They are widely used in consumer, industrial, and automotive embedded applications where 8-bit simplicity and proven toolchains are preferred over 32-bit complexity. The PIC18F4455 specifically adds an integrated Full-Speed USB 2.0 transceiver (12 Mbit/s), supporting both low-speed and full-speed USB operation without external transceivers. The device includes three serial communication ports: USB, I2C, SPI (up to 10 Mbit/s), and an asynchronous EUSART with LIN master/slave capability. On-chip peripherals include a 10-bit ADC with up to 13 channels, multiple 8-bit and 16-bit timers, and nanoWatt power management with multiple low-power sleep modes. Architecturally, the PIC18F4455 uses a Harvard architecture with separate program and data buses, an 8-bit ALU, and a hardware multiply unit supporting 8x8 single-cycle multiplication. The integrated SIE (Serial Interface Engine) handles USB protocol automatically, dramatically simplifying USB device firmware. With 24 KB Flash and 2 KB RAM, the device comfortably fits full-speed USB stacks such as Microchip's Microchip Libraries for Applications (MLA) and supports CDC, HID, and vendor-class USB implementations. Typical applications include USB-based sensor interfaces, HID peripherals (keyboards, mice, game controllers), USB-to-UART bridges, industrial data loggers with USB connectivity, embedded web servers (via CDC-ECM or RNDIS), and automotive LIN bus gateway nodes. The wide 2.0 V to 5.5 V supply range and nanoWatt sleep modes make the device attractive for battery-powered USB devices. When designing with the PIC18F4455-I/PT, pay attention to the USB D+/D- pin routing - the differential pair must be 90 ohm impedance-matched, length-matched, and isolated from noisy digital traces. Use a 20 MHz external crystal with the on-chip PLL to derive the 48 MHz USB clock; 48 MHz is mandatory for Full-Speed USB operation. Adequate decoupling (100 nF plus 4.7 uF bulk) should be placed close to VDD/VSS pairs. This page consolidates distributor pricing, drop-in PIC18F alternatives in the same TQFP-44 footprint, and practical USB-embedded design considerations not found in the manufacturer datasheet alone, enabling faster BOM validation and supply-chain risk assessment for production engineering teams.

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PIC18F4455T-I/PT - 48MHz 8-bit FS-USB MCU 24KB Flash | Microchip
PIC18F4455T-I/PT

PIC18F4455T-I/PT - 48MHz 8-bit FS-USB MCU 24KB Flash | Microchip

The Microchip Technology PIC18F4455T-I/PT is an 8-bit PIC18 family microcontroller featuring an integrated Full-Speed USB 2.0 transceiver, 24KB of enhanced flash program memory and 2048 bytes of RAM, running at up to 48 MHz (12 MIPS) from a 4.2 V to 5.5 V supply in a 44-pin TQFP (10x10 mm) package. The "/PT" suffix denotes the TQFP package while the "/T" indicates tape-and-reel packaging and "I" indicates the industrial -40C to +85C temperature grade. A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (typically flash), working RAM, and a rich set of peripheral interfaces into one IC. Within the broader semiconductor taxonomy, an 8-bit MCU sits inside the microcontroller category, which itself belongs to integrated circuits and finally to semiconductors. PIC18 microcontrollers use Microchip's enhanced Harvard RISC architecture with 16-bit wide instructions that execute in four oscillator cycles, providing higher code density and throughput than baseline PIC microcontrollers. Key features include 24KB (12K x 16) flash program memory, 2048 bytes of RAM, a 10-bit ADC with up to 13 channels, two 8-bit and three 16-bit timers, two capture/compare/PWM modules, an enhanced USART (LIN-capable), an MSSP supporting both I2C and SPI up to 10 Mbit/s, and an integrated USB 2.0 full-speed transceiver (12 Mbit/s) with on-chip transceivers and 1.5 kB of dedicated endpoint RAM. nanoWatt power-management technology provides multiple idle and sleep modes for low-power embedded designs. The device uses a 5V-tolerant CMOS process, includes an 8x8 hardware multiply, a 32 kHz secondary oscillator for real-time-clock operation, and provides two comparators plus a programmable reference. The integrated full-speed USB transceiver removes the need for external USB transceivers, simplifying USB peripherals such as HID, CDC, vendor-class devices, and embedded hosts. Typical applications include USB peripherals (keyboards, mice, custom HID devices, USB-to-UART bridges), low-cost instrumentation with USB connectivity, embedded data loggers, sensor front-ends with USB data export, LIN slave nodes in automotive body networks, industrial control with USB diagnostics, and educational/development platforms that benefit from the same PIC18 instruction set used across the entire Microchip PIC family. When designing with this device, ensure the VUSB pin is decoupled with the manufacturer-recommended 220 nF capacitor and that the USB DP/DM traces are routed as a 90-ohm differential pair. Always configure the CONFIG fuses (oscillator, WDT, brown-out, low-voltage programming) before code download to lock the device into the intended operating mode. This page synthesizes distributor pricing, pin-compatible drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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