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PIC18LF44J10-I/PT - 40MHz 16KB Flash 8-bit MCU | Microchip
PIC18LF44J10-I/PT

PIC18LF44J10-I/PT - 40MHz 16KB Flash 8-bit MCU | Microchip

The Microchip Technology PIC18LF44J10-I/PT is an 8-bit RISC PIC microcontroller from the PIC18J family, featuring a 40 MHz (12 MIPS) CPU core, 16 KB of Flash program memory (8K x 16), 1024 bytes of SRAM, and 32 digital I/O lines housed in a 44-pin TQFP (10x10 mm) package. It operates from a 2.0 V to 5.5 V wide supply voltage range with nanoWatt Technology for ultra-low-power sleep modes, making it suitable for both battery-powered and line-powered embedded designs. An 8-bit microcontroller is a single-chip computer built around an 8-bit data-path CPU, on-chip Flash program memory, RAM, and a fixed set of peripherals such as timers, ADC, serial communication modules and general-purpose I/O. Within the broader taxonomy, PIC microcontrollers fall under the category of microcontroller -> embedded controller -> semiconductor -> integrated circuit. The PIC18 family is Microchip's enhanced 8-bit architecture with a 16-bit instruction word, offering higher code density and richer peripherals than the legacy PIC16 family, while still targeting cost-sensitive, low-power applications. Key features include 13 channels of 10-bit Analog-to-Digital Conversion (ADC) with auto-acquisition, 5 timer modules (Timer0/1/2/3 plus Timer4), one Enhanced USART (EUSART) with LIN support, two Master Synchronous Serial Port (MSSP) modules supporting SPI and I2C (with address masking), 2 comparators, 4 channels of PWM (10-bit ECCP plus 2 CCP), and a 256-byte data EEPROM. The device also integrates an 8 x 8 hardware multiplier, two analog comparators with programmable reference, and nanoWatt Technology dynamic power-down modes that drop Iq into the sub-microamp region during sleep. Architecturally the PIC18LF44J10 uses a Harvard-style bus with separate program Flash and data SRAM paths, 31-level hardware stack, and a 16-bit instruction word capable of executing one instruction per clock cycle (4-clock pipeline). The LF prefix designates the wide-voltage variant that supports operation down to 2.0 V, providing flexibility for systems powered from 2-cell battery packs or regulated 3.3 V rails. The J10 family specifically targets USB- and connectivity-rich applications with its dual MSSP and EUSART combination. Typical applications include industrial control panels, low-power sensor nodes, USB peripherals (with external transceiver), home automation controllers, automotive body electronics, white-goods user interfaces, and small HMI displays. The 13-channel 10-bit ADC is well matched to multi-sensor acquisition, while the dual I2C/SPI ports simplify connection to sensors and EEPROMs. When designing with the PIC18LF44J10-I/PT, place the ICSP decoupling network (typically 100 nF plus 10 uF bulk) as close as possible to the VDD/VSS pair nearest the die and respect the 2.0 V minimum supply during programming and ADC reference operation. MPLAB X IDE with XC8 compiler is the standard firmware toolchain. This page synthesizes distributor pricing, drop-in Microchip alternatives (PIC18F44J10-I/PT, PIC18LF44J10-I/P, PIC18LF44J10T-I/PT), package information and practical design notes not found on the manufacturer product page alone.

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PIC18LF44J10T-I/ML - 8-Bit 40MHz MCU, 16KB Flash, 44-QFN | Microchip
PIC18LF44J10T-I/ML

PIC18LF44J10T-I/ML - 8-Bit 40MHz MCU, 16KB Flash, 44-QFN | Microchip

The Microchip Technology PIC18LF44J10T-I/ML is an 8-bit RISC microcontroller from the PIC18J family featuring a 40MHz PIC core with 16KB (8K x 16) of FLASH program memory, 1KB of RAM, and a 44-pin QFN (8x8 mm) package. The device supports a wide operating voltage range of 2.0V to 3.6V, making it suitable for battery-powered and low-voltage designs, while the internal nanoWatt technology enables multiple power-saving modes including Idle, Sleep, and ultra-low-power Real-Time Clock (RTC) operation. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, program memory, and peripherals onto one die. PIC18J-series devices specifically belong to the broader PIC18 microcontroller family (8-bit RISC) within the Microchip MCU product hierarchy: PIC18J -> PIC18 -> 8-bit MCU -> microcontroller -> embedded IC. The PIC18F45J10 family incorporates nanoWatt technology, meaning it is engineered for applications where energy efficiency is critical. Key features include 16KB FLASH organized as 8K x 16 words, 1KB RAM, full-speed USB 2.0 compliance via the internal transceiver, two Enhanced USART modules, two MSSP (SPI/I2C) ports, a 10-bit ADC with up to 13 input channels, and four 16-bit timers. The nanoWatt power management suite supports ultra-low-power Sleep mode with wake-up via RTCC, allowing designs to extend battery life for years. The part carries an industrial temperature rating of -40C to +85C. The PIC18LF44J10 architecture uses a modified Harvard bus with separate program and data paths, enabling single-cycle instruction fetch and decode. The wide 16-bit instruction word and 8-bit data path provide deterministic execution for real-time control loops. Internal oscillator options reduce external component count, while the integrated USB 2.0 full-speed transceiver removes the need for an external PHY. Typical applications include low-power USB peripherals, industrial sensor nodes, portable data loggers, home automation controllers, and battery-powered consumer devices. Designers select the PIC18LF44J10 specifically when they need a balance of low power consumption, USB connectivity, and ample code space within an industry-standard 8-bit architecture. When designing with the PIC18LF44J10, note that the LF prefix indicates the low-voltage (2.0-3.6V) variant; the non-LF PIC18F44J10 supports 2.0-3.6V as well but is distinguished by a different power-on-reset trip point and nanoWatt tuning. Decoupling capacitors (100nF) on each VDD pin and bulk capacitance on VUSB are required per the manufacturer datasheet to maintain USB signal integrity. This page synthesizes distributor pricing, drop-in alternatives in the same QFN-44 (ML) package, and practical design notes that go beyond the manufacturer datasheet to accelerate prototyping and sourcing decisions.

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PIC18LF44J10T-I/PT - 40MHz 8-Bit MCU 16KB Flash 44-TQFP | Microchip
PIC18LF44J10T-I/PT

PIC18LF44J10T-I/PT - 40MHz 8-Bit MCU 16KB Flash 44-TQFP | Microchip

The Microchip Technology PIC18LF44J10T-I/PT is an 8-bit PIC microcontroller from the PIC18J family, featuring a 40MHz maximum operating frequency, 16KB (8K x 16) of FLASH program memory, and 1KB of RAM, packaged in a 44-pin TQFP (10x10 mm). It supports 2.5V, 3.3V, and 5V operating voltages, making it suitable for both low-power and standard digital applications. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and peripherals on one die. The PIC18 family uses a RISC (Reduced Instruction Set Computer) Harvard architecture with separate program and data buses, enabling single-cycle instruction execution. Within the broader semiconductor hierarchy, PIC18LF44J10 belongs to the microcontroller -> embedded processor -> integrated circuit taxonomy. The "LF" prefix designates the low-voltage FLASH variant optimized for nanoWatt technology, which provides multiple power-saving modes for battery-operated designs. Key features of the PIC18LF44J10T-I/PT include nanoWatt power management for reduced active and sleep currents, integrated peripherals such as brown-out detect (BOD), power-on reset (POR), pulse-width modulation (PWM), and a watchdog timer (WDT), plus communication interfaces including I2C, SPI, and UART/USART. The industrial temperature range (-40C to +85C) ensures reliable operation across commercial and industrial environments, while the TQFP-44 surface-mount package supports automated PCB assembly. Technically, this device uses a 16-bit instruction word with an 8-bit data path, 16 hardware registers, and a vectored interrupt controller. Its nanoWatt technology offers multiple idle modes (Idle, Sleep, and deep Sleep variants) with sub-microamp quiescent current in deep sleep, making it appropriate for battery-powered sensor nodes. The 40MHz internal oscillator (via PLL) supports USB-friendly timing and high-throughput serial communication. Typical applications include industrial control panels, consumer electronics, home automation, sensor interface boards, motor control peripherals, and USB device controllers. The wide voltage range (2.0V to 5.5V including full-speed operation up to 40MHz at 3.3V) makes it a flexible choice for both 3.3V and 5V systems. When designing with this MCU, allocate sufficient decoupling (0.1uF + 10uF) near VDD pins, ensure the MCLR pull-up is present, and respect the in-circuit serial programming (ICSP) pin assignments. Compiler support is mature across MPLAB XC8, MCC generated code, and third-party toolchains. This page synthesizes distributor pricing, drop-in alternatives from the PIC18LF family, and practical design notes not consolidated in the manufacturer datasheet - enabling faster sourcing and design decisions.

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PIC18LF44J11-I/ML - 8-bit MCU, 16KB Flash, 44-QFN | Microchip
PIC18LF44J11-I/ML

PIC18LF44J11-I/ML - 8-bit MCU, 16KB Flash, 44-QFN | Microchip

The Microchip Technology PIC18LF44J11-I/ML is an 8-bit PIC18 microcontroller with 16 KB Flash, 4 KB RAM, and 12 MIPS performance, housed in a 44-pin QFN (ML) package with exposed pad. It operates from 2.0V to 3.6V, includes nanoWatt technology for ultra-low power consumption, and integrates peripherals such as multiple timers, 10-bit ADC, comparators, and communication interfaces. The device is part of the PIC18 J-series family, optimized for low-power and mixed-signal embedded applications. A microcontroller (MCU) is a single-chip computer containing a CPU core, program and data memory, and integrated peripherals. The PIC18 family uses a 16-bit instruction width with an 8-bit data path (modified Harvard architecture) optimized for deterministic interrupt response. Within the broader semiconductor taxonomy, MCUs fall under digital ICs -> microcontrollers -> embedded controllers -> microprocessors. The 8-bit class remains widely deployed in cost- and power-sensitive applications because of its small code footprint, mature toolchains, and low unit cost. Key features of the PIC18LF44J11 include 16 KB self-programmable Flash program memory, 4 KB SRAM, 256 bytes of EEPROM, a 10-bit ADC with up to 13 channels, two analog comparators, two UART/SPI/I2C capable EUSART modules, two CCP modules, and a 31.25 kbps internal oscillator for low-power operation. The nanoWatt technology reduces sleep current below 1 uA, making the device attractive for battery-backed designs and always-on sensor nodes. Architecturally, the PIC18LF44J11 uses an enhanced mid-range core with hardware multiply, single-cycle 16-bit instruction execution, and a vectored interrupt controller. Internal RC oscillators and on-chip voltage regulation simplify BOM by removing the need for external crystal or LDO in many configurations. The device supports in-circuit serial programming (ICSP) and self-programming of Flash under firmware control, enabling field upgrades. Typical applications include handheld medical devices, portable consumer electronics, wireless sensor nodes (with external radio), HVAC controllers, smart thermostats, USB peripherals, and industrial control interfaces. The combination of low power, rich peripherals, and small footprint suits designs that require 8-bit processing efficiency without migrating to a more complex 32-bit platform. When designing with this part, note that 44-pin QFN devices require careful thermal pad soldering and proper PCB land pattern geometry. The ICSP programming pins are shared with general-purpose I/O and must be considered when allocating pin functions. Always review the Microchip MPLAB X project settings to ensure the proper configuration bits for oscillator and watchdog behavior. This page synthesizes distributor pricing, drop-in compatible alternatives, and practical design notes that complement the Microchip datasheet and accelerate your component selection decision.

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PIC18LF44J11-I/PT - 8-bit 48MHz 16KB Flash MCU 44-TQFP | Microchip
PIC18LF44J11-I/PT

PIC18LF44J11-I/PT - 8-bit 48MHz 16KB Flash MCU 44-TQFP | Microchip

The Microchip Technology PIC18LF44J11-I/PT is an 8-bit PIC18 microcontroller from the nanoWatt XLP family, delivering 48 MHz (12 MIPS) performance with 16 KB Flash, 4 KB RAM, and 34 I/O pins in a 44-pin TQFP (10x10 mm) package. It operates from 2.0 V to 5.5 V supply voltage, supporting both 3.3 V and 5 V system rails, and integrates a 10-bit ADC, multiple PWM, UART, SPI, and I2C peripherals for embedded control tasks. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), data memory (RAM), and programmable peripherals into one package. Within the broader category hierarchy, an 8-bit MCU sits between simple logic ICs and 32-bit application processors; PIC18F devices specifically belong to the enhanced mid-range 8-bit family, optimized for cost-sensitive, low-power, deterministic real-time applications where C-compilable instruction set and rich peripherals matter more than raw compute throughput. Key features include nanoWatt eXtreme Low Power (XLP) technology with sleep currents as low as 20 nA, an integrated 10-bit A/D converter with up to 13 channels, two analog comparators, a hardware RTCC, and four timer modules supporting Capture/Compare/PWM. The device also features an enhanced instruction set with C-friendly addressing, on-chip debugging via ICD, and self-programming Flash for field firmware updates. Architecture-wise, the PIC18LF44J11 uses a Harvard-style RISC core with a 16-bit instruction word and 8-bit data path, allowing compact code density while supporting linear addressing up to 2 MB. Internal PLL and 4x multiplier deliver 48 MHz from a wide range of crystal or oscillator inputs, providing deterministic interrupt latency for real-time control loops in motor, lighting, and sensor applications. Typical applications include battery-powered IoT sensor nodes, USB HID peripherals, industrial control panels, medical monitoring devices, automotive body controllers, and home appliances. The wide voltage tolerance and nanoWatt sleep modes also suit energy-harvesting designs. When designing with this part, plan oscillator selection carefully: the LF suffix indicates 2.0-5.5 V operation (lower-power analog), whereas the F (5 V) variant has different analog biasing. Use ICD headers for debug and consider migrating to PIC18F27K42 or PIC18F46K22 for newer designs.

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PIC18LF44J11T-I/PT - 16KB Flash 8-Bit MCU 48MHz TQFP-44 | Microchip
PIC18LF44J11T-I/PT

PIC18LF44J11T-I/PT - 16KB Flash 8-Bit MCU 48MHz TQFP-44 | Microchip

The Microchip Technology PIC18LF44J11T-I/PT is an 8-bit PIC RISC microcontroller featuring 16KB of Flash program memory, 4KB of RAM, and a maximum CPU clock speed of 48 MHz (12 MIPS) in a 44-pin TQFP (10x10 mm) surface-mount package. The LF prefix denotes an extended low-voltage core operating from 2.0 V to 5.5 V, and the part integrates nanoWatt XLP technology for ultra-low sleep current consumption, making it well suited to battery-powered and energy-harvesting designs. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path that integrates a CPU, non-volatile program memory, working RAM, configurable digital I/O, and a mix of on-chip peripherals such as timers, ADC, communication controllers, and (in USB-capable variants) a USB device/engine. The PIC18 family occupies Microchip's mid-to-high performance 8-bit tier, sitting above baseline PIC10/PIC12/PIC16 parts and below the PIC24/dsPIC 16-bit families in code density, interrupt capability, and peripheral integration. Within the power-management IC hierarchy, the MCU belongs to the embedded-controller tier, where it sequences rails, samples sensors, and drives user interfaces. Key features include 34 digital I/O pins, 10-bit ADC, two analog comparators, two USART modules, two SPI/I2C MSSP peripherals, two 8-bit timers plus three 16-bit timers, and 16 KB self-programmable Flash with typical 10,000 erase/write cycles. The integrated nanoWatt XLP power manager provides multiple low-power sleep modes with current consumption in the nanoampere range during deep sleep, dramatically extending battery life in always-on wireless sensor and metering applications. Typical applications include USB Human Interface Devices (HID) such as keyboards and mice, smart-card readers, industrial sensing nodes, building automation controllers, portable medical accessories, and low-cost graphics/segmented-display user interfaces. The wide 2.0-3.6 V operating range directly supports single-cell Li-ion or 3.3 V regulated rails, while the LF low-voltage variant allows operation down to 2.0 V for two-cell battery stacks and energy-harvesting sources. When designing with this MCU, place a 0.1 uF decoupling capacitor as close as possible to every VDD/VDDCORE pin pair and follow Microchip AN585 reference for in-circuit serial programming (ICSP) layout. The ICSPDAT/ICSPCLK pins must remain accessible for production programming; route them with short stubs to a 6-pin header. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes drawn from Microchip datasheet DS39931 and verified distributor listings, providing context beyond the manufacturer datasheet.

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PIC18LF44J50-I/PT - 8-bit 48MHz 16KB Flash USB MCU TQFP-44 | Microchip
PIC18LF44J50-I/PT

PIC18LF44J50-I/PT - 8-bit 48MHz 16KB Flash USB MCU TQFP-44 | Microchip

The Microchip Technology PIC18LF44J50-I/PT is an 8-bit PIC18J nanoWatt XLP microcontroller IC running at 48MHz with 16KB (8K x 16) of Flash program storage in a 44-pin TQFP (10x10mm) package. It integrates a full-speed USB 2.0 transceiver and SIE, on-chip voltage regulator, and rich analog/digital peripherals aimed at consumer, industrial, and USB-embedded designs. An 8-bit microcontroller (MCU) is a small computer-on-a-chip integrating a CPU core, program memory (Flash), data RAM, non-volatile EEPROM, and peripheral interfaces into a single package. Within the broader semiconductor taxonomy, an MCU belongs to microcontrollers -> integrated circuits -> semiconductors. The PIC18LF family is Microchip's high-performance 8-bit line, adding hardware multipliers, C-friendly architecture, and enhanced peripherals to the legacy PIC16 core. Key features of the PIC18LF44J50 include 48MHz operation (12 MIPS), 16KB Flash, 3778 bytes RAM, 256 bytes EEPROM, 34 digital I/O pins, 13 10-bit ADC channels, 2 analog comparators, 2 UART/USART, SPI and I2C (MSSP), 5 16-bit timers, 2 8-bit timers, and an integrated full-speed USB 2.0 device with on-chip transceiver. The 'LF' prefix denotes the wide-voltage 2.0V to 5.5V operating range with nanoWatt XLP low-power modes (<100 nA typical sleep current). Architecturally, the PIC18LF44J50 uses a Harvard RISC core with 16-bit instructions and 8-bit data path, an 8x8 hardware multiplier for DSP-style math, and a separate 16-bit instruction prefetch queue. The integrated USB 2.0 full-speed (12 Mbps) PHY eliminates the need for an external transceiver, while the on-chip 2.5V/3.3V regulator allows single-rail 5V operation. Typical applications include USB HID peripherals (keyboards, mice, custom HID), USB-to-UART bridges, USB data loggers, low-power sensor nodes with USB charging, and industrial USB interfaces. The wide 2.0V to 5.5V input range and nanoWatt XLP technology also make it suitable for battery-powered devices. When designing with this part, note that the TQFP-44 footprint matches other PIC18F4xJ50 family members; firmware is built with MPLAB X IDE and the XC8 compiler. The internal voltage regulator requires an external decoupling network and proper cap selection to avoid noise coupling into the analog peripherals. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes for the PIC18LF44J50-I/PT that go beyond the manufacturer datasheet's parametric table.

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PIC18LF44J50T-I/PT - 48MHz USB MCU 16KB Flash | Microchip
PIC18LF44J50T-I/PT

PIC18LF44J50T-I/PT - 48MHz USB MCU 16KB Flash | Microchip

The Microchip PIC18LF44J50T-I/PT is an 8-bit PIC microcontroller in the PIC18 J-series family, featuring integrated full-speed USB 2.0 (12 Mbps), 16 KB of Flash program memory and 4 KB of RAM in a 44-pin TQFP package (10x10 mm). It runs at up to 48 MHz (12 MIPS) and operates from 2.0 V to 5.5 V on its LF (low-voltage) core, targeting battery-powered and USB-connected embedded designs. The 'T' suffix denotes tape-and-reel packaging, while 'I/PT' indicates the industrial temperature grade (-40C to +85C) on a TQFP package. What is an 8-bit PIC microcontroller? An 8-bit MCU is a single-chip computer that processes data 8 bits at a time and integrates CPU, Flash, RAM, peripherals (USB, ADC, timers), and I/O on a single die. Within the MCU hierarchy, the PIC18 family sits at the upper end of Microchip's 8-bit portfolio - above PIC10/12/16 in code size and peripheral integration. The PIC18LF44J50 is part of the 'J' family, which adds nanoWatt XLP power management, USB OTG, and a wider peripheral set. For embedded engineers, this category is ideal when deterministic real-time response and low BOM cost matter more than raw compute throughput. Key features include a 10-bit ADC with up to 13 channels, multiple communication peripherals (USB 2.0 Full Speed, I2C, SPI, EUSART), 5 CCP/ECCP modules, two analog comparators, and CTMU support for capacitive sensing. The device supports 34 digital I/O lines and offers three low-power sleep modes typical of the nanoWatt XLP family. On-chip peripherals are mapped through peripheral pin select (PPS), providing design flexibility for pin allocation. Architecturally, the PIC18LF44J50 combines a Harvard RISC core (with hardware multiply) running at 12 MIPS, dedicated USB SIE hardware, and a wide voltage operating range. The 'LF' suffix indicates Flash + low-voltage operation, while the J-series devices add a charge pump for USB operation from lower supply voltages. The integrated USB SIE eliminates the need for an external PHY in many designs, saving BOM cost and PCB area. Typical applications include USB peripherals (HID, CDC, custom class), battery-powered data loggers, sensor interface boards with USB diagnostics, consumer electronics, and small industrial control nodes. The combination of USB and nanoWatt XLP sleep currents makes the part especially suited to USB-powered or intermittently active devices. When designing, select appropriate ferrite beads or chokes on VUSB to suppress bus noise, follow USB-IF pull-resistor guidance on D+/D-, and follow Microchip application notes for USB descriptor stack tuning.

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PIC18LF44K22-E/ML - 16KB Flash, 48MHz, 34 I/O 8-bit MCU | Microchip
PIC18LF44K22-E/ML

PIC18LF44K22-E/ML - 16KB Flash, 48MHz, 34 I/O 8-bit MCU | Microchip

The Microchip PIC18LF44K22-E/ML is an 8-bit PIC18 RISC microcontroller featuring 16KB of Flash program memory, 48MHz CPU clock (12 MIPS throughput), 34 digital I/O pins, and integrated nanoWatt XLP power-saving peripherals in a 44-pin QFN (ML) 8x8 mm package with exposed pad. It supports a wide 2.0V to 5.5V supply range with enhanced Flash endurance and operates over the -40C to +125C extended industrial temperature range. On-chip peripherals include a 10-bit ADC, multiple PWM/CCP modules, two analog comparators, USART, SPI, I2C, mTouch capacitive sensing, and a charge time measurement unit (CTMU), delivering a compact, low-power control core for cost-sensitive embedded designs. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, volatile RAM, peripheral timers, and configurable I/O onto one die. Within the broader hierarchy, a microcontroller is a type of embedded microprocessor (MPU category), and the PIC18 family belongs to Microchip's enhanced 8-bit RISC architecture (PIC10/12/16/18 hierarchy) which sits below the 16-bit dsPIC/PIC24 and 32-bit PIC32 families in the company's portfolio. The 'LF' prefix denotes the low-voltage Flash variant optimized for 2.0V-5.5V operation, while the 'K22' identifies the enhanced Flash family with nanoWatt XLP technology for ultra-low-power sleep modes. The '44' in the part number indicates 44-pin package variants across the family. Key features include 16KB (8K x 16) self-programmable Flash with 100K endurance cycles, 768 bytes of data EEPROM, 2KB SRAM, 25 MIPS instruction throughput at 64MHz oscillator, and a 16-level hardware stack with 31-level software emulation. The device integrates seven PWM modules, four 16-bit timers, three external interrupts, two rail-to-rail analog comparators with programmable reference, and a 30-channel 10-bit ADC. Peripherals such as SPI, I2C (MSSP module), and enhanced USART support both polled and DMA-style data transfer. Typical applications include home appliances, industrial control, sensor signal conditioning, LED lighting control, low-power battery sensor nodes, USB HID peripherals, and capacitive touch user interfaces. The wide 2.0V-5.5V supply range allows direct operation from single-cell Li-ion, 3.3V regulated rails, or 5V USB rails without external level shifting. When designing with this device, ensure proper decoupling (100nF near each VDD/AVDD pin plus a 10uF bulk cap) and route the exposed pad to a continuous ground pour for thermal dissipation. The PIC18LF44K22's internal 16MHz HFINTOSC trims to +/-1% across voltage and temperature, eliminating an external crystal in many cost-sensitive designs.

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PIC18LF44K22-E/MV - 8-Bit 48MHz XLP MCU 16KB Flash | Microchip
PIC18LF44K22-E/MV

PIC18LF44K22-E/MV - 8-Bit 48MHz XLP MCU 16KB Flash | Microchip

The Microchip Technology PIC18LF44K22-E/MV is an 8-bit PIC18 microcontroller based on the enhanced RISC architecture, operating at up to 48 MHz with 16 KB Flash program memory, packaged in a 40-pin UQFN (5x5 mm) with an exposed thermal pad. It features nanoWatt XLP extreme low-power technology, 768 bytes of SRAM, and an enhanced instruction set optimized for C-compiled code with 16-bit wide instructions. A microcontroller (MCU) is a single-chip computer containing a CPU core, program and data memory, and integrated peripherals such as timers, communication interfaces, and analog-to-digital converters. The PIC18LF44K22 belongs to the PIC18LF family of low-voltage (LF) variants, designed for operation from 2.0V to 5.5V (F variants support 2.3V to 5.5V). These MCUs sit within the broader 8-bit PIC family, which evolved from Microchip's original Harvard-architecture microcontrollers, and are widely deployed in consumer, industrial, and low-power embedded applications. Key features include 34 I/O pins, a 12-bit ADC with up to 28 channels, two comparators, two Enhanced USART modules, two MSSP (SPI/I2C) ports, two CCP and three ECCP PWM modules with auto-shutdown, and the HLVD (High/Low-Voltage Detect) module for brown-out monitoring. The nanoWatt XLP technology delivers typical sleep currents below 100 nA, making it well-suited to battery-powered designs. The architecture combines a modified Harvard bus with 31-level hardware stack and 8x8 hardware multiply, supporting up to 16 MIPS throughput. Internal oscillator options provide system clock flexibility without external crystals, simplifying BOM and reducing board area in space-constrained designs. Typical applications include low-power sensor nodes, battery-powered handheld instruments, USB peripherals, motor-control subsystems, and industrial control modules. The wide operating voltage range allows direct connection to 3.3V or 5V rails, simplifying power-tree design. For designs requiring automotive qualification, the -E/MV temperature grade (-40C to +125C) supports extended-environment deployment. When designing with the PIC18LF44K22, allocate at least one decoupling capacitor pair per VDD/AVDD pin pair, place the exposed pad with a continuous ground plane for thermal dissipation, and configure the configuration bits correctly to enable the chosen oscillator mode. This page consolidates distributor pricing, drop-in alternatives, and practical design guidance not found in the manufacturer datasheet alone.

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PIC18LF44K22-E/PT - 8-bit 48MHz 16KB Flash MCU | Microchip
PIC18LF44K22-E/PT

PIC18LF44K22-E/PT - 8-bit 48MHz 16KB Flash MCU | Microchip

The Microchip Technology PIC18LF44K22-E/PT is an 8-bit PIC18 family microcontroller with nanoWatt XLP extreme low-power technology, 16 KB (8K x 16) of Flash program memory, 768 bytes of SRAM, and 256 bytes of EEPROM, running up to 48 MHz (12 MIPS) in a 44-pin TQFP (10x10 mm) package. The device supports an operating voltage range of 1.8V to 3.6V for the LF variant, includes 34 digital I/O lines, and integrates peripherals such as multiple Enhanced USART, MSSP (SPI/I2C), 12-bit ADC, comparators, and PWM modules. The "LF" prefix denotes the low-voltage variant of the K22 family; the standard PIC18F44K22 covers 2.0V to 5.5V while the LF variant is optimized for 1.8V to 3.6V battery operation. A PIC microcontroller is a compact, programmable microprocessor on a single integrated circuit that combines a CPU core, non-volatile Flash memory, RAM, EEPROM, and configurable peripherals. PIC microcontrollers belong to the broader category of microcontrollers (MCUs) and embedded controllers, sitting within the taxonomy microcontroller -> embedded processor -> semiconductor. Microchip's PIC18 family uses a RISC architecture with a Harvard memory layout, which delivers deterministic instruction execution (200 ns per instruction at 48 MHz), strong code density, and mature MPLAB X IDE and XC8 toolchain support. Key features that distinguish the PIC18LF44K22-E/PT include nanoWatt XLP technology that delivers sleep currents in the nanoamp range, multiple low-power modes (Sleep, Idle, Doze, and alternate clock), and peripheral modules that can operate independently in sleep mode. The 12-bit ADC with up to 30 channels, mTouch capacitive-touch sensing support, and 5 CCP/ECCP modules make it suitable for mixed-signal and human-interface designs. The architecture relies on a flash-based Harvard core with a hardware multiplier for high-speed arithmetic, internal oscillator options (up to 16 MHz HFINTOSC with PLL), and dual analog comparators. The integrated CTMU module supports capacitive sensing for touch buttons and sliders, while the EEPROM emulation in Flash provides flexible data storage. Typical applications include battery-powered sensor nodes, portable consumer devices, industrial control modules, low-power IoT edge devices, capacitive touch user interfaces, and embedded control in energy-metering products. The wide operating voltage and low sleep current also make it a strong fit for energy-harvesting designs. A critical design consideration is to ensure your firmware uses the appropriate config bits for the LF voltage range (1.8V to 3.6V), and to validate that any peripheral operating mode you select is supported at the chosen clock frequency across temperature. For longer battery life, leverage the deep-sleep modes with RTCC and use the internal LFINTOSC for low-frequency time bases. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single reference for MPN decoding, lifecycle, and parametric comparison.

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PIC18LF44K22-I/ML - 8-bit 16KB Flash MCU, nanoWatt XLP, 44-QFN | Microchip
PIC18LF44K22-I/ML

PIC18LF44K22-I/ML - 8-bit 16KB Flash MCU, nanoWatt XLP, 44-QFN | Microchip

The Microchip PIC18LF44K22-I/ML is an 8-bit PIC18 microcontroller with 16 KB Flash program memory, 768 bytes SRAM, and 256 bytes EEPROM, packaged in a 44-pin QFN (ML) surface-mount format. It operates across 1.8V to 3.6V (LF variant) and integrates nanoWatt eXtreme Low Power (XLP) technology for battery-friendly designs. The part targets low-power, high-performance embedded applications requiring rich peripheral integration in a small footprint. An 8-bit microcontroller (MCU) is a programmable processor that executes instructions on an 8-bit data bus. It sits within the broader taxonomy of microcontrollers -> microprocessors -> semiconductor devices -> integrated circuits. The PIC18 family is Microchip's high-performance 8-bit line featuring a RISC-based Harvard architecture, hardware multiplier, and C-optimized instruction set, sitting architecturally between the baseline PIC10/12/16 families and the 16-bit dsPIC/PIC24 families. Key features include up to 16 MIPS performance at 64 MHz internal oscillator, 30 source/sink I/O capable of 25 mA per pin, two Enhanced USART modules, two MSSP (SPI/I2C) modules, two 10-bit ADC converters with up to 28 channels, two analog comparators with rail-to-rail inputs, a 5-bit DAC, three 8/16-bit timer/counters, a 16-bit capture/compare/PWM module, and CTMU for capacitive touch sensing. The XLP nanoWatt technology delivers sub-microamp sleep currents with retention. Typical applications include compact handheld design (portable consumer, IoT sensor nodes), industrial control (sensor hubs, simple motor control, lighting controllers), medical devices (compact patient monitoring, point-of-care instruments), and consumer electronics (small appliance controllers, smart-home bridges, battery-powered toys). The integrated peripherals enable single-chip designs that previously required external ADC, EEPROM, and driver ICs. When designing with this device, ensure the QFN-44 thermal pad is soldered to a sufficient copper pour to dissipate power and provide mechanical robustness. Decouple VDD with a 100 nF ceramic capacitor close to each pin pair, and add a bulk 1 uF to 10 uF capacitor on the main rail. Always configure unused pins as outputs to minimize sleep current.

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PIC18LF44K22-I/P - 16KB Flash 8-bit MCU 40-DIP | Microchip
PIC18LF44K22-I/P

PIC18LF44K22-I/P - 16KB Flash 8-bit MCU 40-DIP | Microchip

The Microchip Technology PIC18LF44K22-I/P is a low-power, high-performance 8-bit PIC microcontroller with 16KB Flash program memory, 768 bytes RAM, and 256 bytes EEPROM, packaged in a 40-pin PDIP (DIP-40) through-hole format. It executes instructions at 64 MHz (up to 16 MIPS) with 200 ns instruction cycle time, providing a strong balance of throughput and code density for embedded designs. Key features include the nanoWatt XLP extreme-low-power technology with multiple idle and sleep modes, twelve ADC channels with 10-bit resolution, two Enhanced USART modules, two MSSP (SPI/I2C) modules, and seven PWM outputs. The 'LF' prefix indicates operation down to 1.8V, making it suitable for battery-powered and energy-harvesting systems where direct Li-ion or two-AA cell stacks are common. The PIC18LF44K22 family is built on Microchip's enhanced PIC18 RISC architecture with a modified Harvard bus, 31-level hardware stack, and 8x8 hardware multiplier. This generation integrates a configurable 16-level deep FIFO on the USART peripherals and provides a peripheral pin-select (PPS) feature on most I/O, simplifying PCB routing on dense designs while preserving direct register compatibility with earlier PIC18F devices. Typical applications include industrial sensor nodes, home-automation controllers, low-power remote keyless entry, HVAC control panels, motor-control loops with software PID, USB-to-UART bridges, and small graphic or character LCD human-machine interfaces. The DIP-40 package is favored by hobbyists, prototyping labs, and legacy-replacement programs because it supports breadboarding, socket installation, and easy rework. When designing with this part, reserve one I/O pin for in-circuit serial programming (ICSP) using the standard PGD/PGC pair. The internal 16 MHz RC oscillator can be combined with the PLL to reach 64 MHz, but active mode current scales with frequency and load, so benchmark nanoWatt XLP sleep currents (typically a few hundred nA) before committing to battery-life estimates. Wide 1.8V-3.6V operation eliminates the need for an external LDO in 2-cell battery applications. This page synthesizes Microchip datasheet parameters, drop-in alternatives within the PIC18 K22 family, and practical engineering notes that go beyond the standard distributor listing. Engineers searching for a 40-pin DIP 8-bit MCU with deep PIC18 toolchain support will find the consolidated package, pinout, application, and alternative views here.

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PIC18LF44K22T-I/MV - 16KB Flash XLP MCU, 40-UQFN | Microchip
PIC18LF44K22T-I/MV

PIC18LF44K22T-I/MV - 16KB Flash XLP MCU, 40-UQFN | Microchip

The Microchip Technology PIC18LF44K22T-I/MV is an 8-bit PIC18LF microcontroller featuring 16 KB (8K x 16) of Flash program memory and 768 bytes of SRAM, housed in a 40-pin Ultra-QFN (UQFN) 5x5 mm exposed-pad package. Operating at up to 64 MHz (16 MIPS) from a 1.8V to 3.6V supply, the LF (low-voltage) variant supports nanoWatt XLP (eXtreme Low Power) technology for ultra-low sleep current consumption, making it suitable for battery-powered and energy-harvesting designs. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, integrating a CPU core, Flash program memory, SRAM, EEPROM, and peripheral set on a single silicon die. Within the broader taxonomy, an MCU belongs to the family of microcontrollers -> microcomputers -> embedded processors -> semiconductors. The PIC18F/K family sits at the upper end of Microchip's 8-bit portfolio, distinguished by its 16-bit instruction word, hardware multiplier, and C-compiler-friendly architecture that bridges classical 8-bit simplicity with 16-bit computational capability. Key features of the PIC18LF44K22 include 256 bytes of EEPROM, 36 digital I/O pins, a 10-channel 10-bit ADC, two analog comparators, hardware PWM, two MSSP (SPI/I2C) ports, two EUSART (LIN-capable) ports, an mTouch capacitive touch peripheral, and CTMU charge-time measurement. The 64 MHz internal oscillator eliminates the need for an external crystal in many designs, reducing BOM cost. The device also integrates a Charge Time Measurement Unit (CTMU) for capacitive touch sensing. Typical applications include low-power IoT sensor nodes, battery-powered handheld instruments, automotive body and HVAC control modules (with AEC-Q100 variants available separately), white goods and appliance user interfaces, and industrial sensor transmitters. The nanoWatt XLP technology typically achieves sub-100 nA sleep currents, enabling multi-year battery life on a single coin cell. When designing with this device, ensure the exposed pad (EP) is soldered to a sufficient copper pour for thermal dissipation. Configure the Configuration Words correctly to enable the internal oscillator and disable unused peripherals to minimize active current. Programming is supported via ICSP using MPLAB X IDE and any PICkit, ICD, or MPLAB Snap debugger. This page synthesizes distributor pricing (LCSC list price from $0.9286), drop-in alternatives within the same 40-UQFN family, and practical design notes not found in the manufacturer datasheet.

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PIC18LF44K22T-I/PT - 16KB Flash XLP 8-bit MCU, 44-TQFP | Microchip
PIC18LF44K22T-I/PT

PIC18LF44K22T-I/PT - 16KB Flash XLP 8-bit MCU, 44-TQFP | Microchip

The Microchip Technology PIC18LF44K22T-I/PT is an 8-bit PIC18 RISC microcontroller with 16 KB Flash, 768 bytes SRAM, and 256 bytes EEPROM, running up to 64 MHz (16 MIPS) from a 1.8V-3.6V supply, housed in a 44-pin TQFP (PT) package with nanoWatt XLP extreme-low-power technology. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, volatile data RAM, EEPROM, and programmable peripherals on one die. Within the broader taxonomy, PIC18 sits between the baseline PIC10/12/16 family and the 16-bit dsPIC/PIC24 family, targeting applications that need more code space, more peripherals, and C-friendly architecture than entry-level 8-bit parts, while still avoiding the cost and complexity of 32-bit ARM Cortex-M cores. The 'LF' prefix denotes the low-voltage Flash variant designed to operate down to 1.8V, distinguishing it from the 5V-tolerant 'F' parts. Key features include 16 KB self-programmable Flash with 10,000 erase/write cycles endurance, 768 bytes SRAM, 256 bytes EEPROM with 1,000,000 erase/write cycles, 36 digital I/O pins, two Enhanced USART modules, two MSSP (SPI/I2C) modules, two 10-bit ADC modules with up to 28 channels, two 10-bit DAC modules, three 16-bit timers, four 8-bit timers, and an 8-bit Parallel Slave Port (PSP). The integrated nanoWatt XLP technology delivers sleep currents below 100 nA typical and active currents near 6 mA at full MIPS. Architecturally, the device uses a Harvard-structure 8-bit data path with a 16-bit instruction word, an 8x8 hardware multiply, hardware single-cycle register operations, and priority levels for interrupts. The 64 MHz internal oscillator, software-selectable frequency ranges, and the on-chip 31 kHz low-power oscillator form the flexible clock tree that drives both CPU and peripherals. Typical applications include battery-powered sensor nodes with months-of-life duty cycles, portable consumer devices such as remote controls and health monitors, low-power industrial control peripherals including HVAC nodes and metering, USB/HID human-interface devices when paired with a PIC18F4550-family controller, and automotive body controllers where AEC-Q100 isn't required. The wide peripheral set also suits intelligent sensors and small appliances. When designing with this part, note that XLP sleep currents only hit their lowest spec with the internal low-frequency oscillator and certain peripherals disabled in PMD; the user must program PMD and OSCCON carefully. Watch the Vbor and Vbat behavior if using battery-backup mode, and always reserve the PGM/ICSP2.5 programming clock pin from analog routing. This page synthesizes distributor stock, drop-in alternative MPNs from the same PIC18(L)F4XK22 family, parametric comparison tables, and practical design notes that go beyond a single datasheet cover page.

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PIC18LF4510-I/ML - 8-bit MCU, 32KB Flash, 40MHz | Microchip
PIC18LF4510-I/ML

PIC18LF4510-I/ML - 8-bit MCU, 32KB Flash, 40MHz | Microchip

The Microchip Technology PIC18LF4510-I/ML is an 8-bit PIC18F-series microcontroller IC running at 40 MHz with 32 KB (16K x 16) of Flash program memory, 1536 bytes of RAM, and 36 digital I/O pins, housed in a 44-lead QFN (8x8 mm) exposed-pad package. The "LF" prefix designates the low-voltage F-variant core that operates from 2.0 V to 5.5 V, supporting battery-powered designs and 3.3 V system rails. On-chip peripherals include a 10-bit ADC, multiple CCP/PWM modules, UART/USART, I2C, and SPI interfaces, plus nanoWatt power-management modes, brown-out reset, POR, HLVD, and a watchdog timer. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (RAM), and peripheral interfaces. PIC18F microcontrollers use an enhanced Harvard RISC architecture with a modified 16-bit instruction word that allows single-cycle execution for most instructions, placing them in the 8-bit MCU product hierarchy: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor IC. The PIC18F family balances code density, deterministic interrupt latency, and broad peripheral integration, making it a workhorse tier above baseline PIC16 parts and below 16-bit PIC24/dsPIC devices. Key features include the 10-bit A/D converter with up to 13 input channels, nanoWatt sleep/Idle modes that drop quiescent current into the microampere range, an enhanced CCP module for PWM motor drive, and self-programming Flash for bootloader-style field updates. The wide 2.0 V to 5.5 V operating window lets the same firmware and PCB serve battery, 3.3 V logic, and 5 V legacy systems without rework. The PIC18F4510 uses an enhanced Harvard architecture with separate code and data buses, a hardware multiplier, and prioritized interrupts that service ADC, PWM, and communication peripherals with deterministic latency. The 8-level hardware stack and 32 KB of linear Flash support C-compiled firmware up to roughly 16 K instructions, with self-programming under firmware control. Typical applications include industrial control, automotive body and sensor subsystems (LF grade, -40 to +85 °C), consumer white goods and small appliances, low-power remote sensor nodes, and USB-/serial-bridge gateway boards where 36 I/O pins and 10-bit ADC simplify mixed-signal front-end integration. When designing with this part, plan input protection on ADC channels, use the exposed pad as the primary thermal and ground return, and choose decoupling per the MCU's datasheet. Pin 1 orientation, the exposed pad footprint, and 44-QFN land pattern must be respected to avoid assembly defects on reflow. This page consolidates distributor pricing, same-family Microchip drop-in alternatives, package-aware comparisons, and design notes not aggregated on any single vendor listing, giving procurement and design engineers a single decision-ready reference.

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PIC18LF4510-I/P - 8-Bit 40MHz MCU, 32KB Flash | Microchip
PIC18LF4510-I/P

PIC18LF4510-I/P - 8-Bit 40MHz MCU, 32KB Flash | Microchip

The Microchip Technology PIC18LF4510-I/P is an 8-bit PIC18 RISC microcontroller built on nanoWatt technology, delivering up to 40 MHz CPU performance with 32 KB (16K x 16) of in-system programmable Flash program memory, packaged in a 40-pin PDIP through-hole form factor. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), data memory (RAM), and a rich set of peripheral interfaces (ADC, timers, UART, I/O ports, PWM, etc.) onto one IC. Within the semiconductor hierarchy, an MCU sits below microprocessor (MPU) and above digital logic ICs; PIC18F-family MCUs specifically target low-power, deterministic embedded control with a Harvard RISC architecture. Key features include 1536 bytes of RAM, 256 bytes of data EEPROM, a 10-bit ADC with up to 13 input channels, multiple capture/compare/PWM modules, two USART ports, an MSSP (SPI/I2C) port, two 8-bit timers and three 16-bit timers, nanoWatt power management, and 36 digital I/O pins on the 40-pin DIP. The part is designed for 2.5V/3.3V/5V operation, providing flexible supply rail support for both portable and line-powered designs. Architecturally, the PIC18LF4510 uses an enhanced 8-bit RISC core with a hardware multiplier, a 31-level deep hardware stack, and instruction-pipelined execution that yields up to 10 MIPS at 40 MHz. Code-compatible across the PIC18 family, it supports both C and assembly development under MPLAB X IDE and MPLAB XC8, with in-circuit debugging via ICD 3 or PICkit 4. The nanoWatt technology adds multiple low-power modes (Run, Idle, and several Sleep variants) selectable in firmware to extend battery life in power-constrained products. Typical applications include industrial control panels, sensor conditioning with on-chip ADC, HVAC thermostats, motor control edge nodes, USB-to-UART bridges, smart energy metering, and automotive body electronics subsystems. The 40-pin PDIP format simplifies breadboard prototyping, legacy field replacements, and through-hole manufacturing for low-to-medium-volume products. When designing with the PIC18LF4510-I/P, note that the -I suffix denotes the industrial temperature grade (-40C to +85C) and the /P package designator specifies the 40-pin PDIP. Decoupling caps of 100 nF plus bulk 10 uF should be placed within a few millimeters of VDD/VSS, and unused I/O pins must be configured as outputs low to minimize current draw in Sleep mode. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the standalone Microchip datasheet, with values verified against DigiKey, Mouser, and Octopart as of 2026-09-28.

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PIC18LF4510T-I/ML - 8-bit MCU, 32KB Flash, 44-QFN | Microchip
PIC18LF4510T-I/ML

PIC18LF4510T-I/ML - 8-bit MCU, 32KB Flash, 44-QFN | Microchip

The Microchip Technology PIC18LF4510T-I/ML is an 8-bit RISC microcontroller from the PIC18F family, featuring 32KB (16K x 16) of Flash program memory, 1536 bytes of RAM, and 256 bytes of EEPROM in a 44-pin QFN (8x8 mm) package with exposed thermal pad. It operates at up to 40 MHz and supports a wide supply voltage range of 2.0V to 5.5V, making it compatible with both 3.3V and 5V system designs. The 'LF' prefix indicates an extended voltage-range variant optimized for low-power applications. An 8-bit PIC microcontroller (MCU) is a Harvard-architecture processor that uses separate program and data buses to execute instructions in a single cycle, typically at speeds up to 40 MIPS. It belongs to the broader category of microcontrollers -> microcontrollers/microprocessors -> integrated circuits -> semiconductors. PIC18F devices are widely used in embedded control applications where deterministic real-time performance, peripheral integration, and ease of programming via MPLAB X IDE are required. Key features include 36 digital I/O pins, a 10-bit ADC with up to 13 channels, multiple communication peripherals (EUSART, MSSP/SPI/I2C), and Capture/Compare/PWM (CCP) modules. The device offers nanoWatt XLP (eXtreme Low Power) technology for battery-powered designs, with deep sleep currents in the microampere range. The industrial temperature range (-40C to +85C) suits it for harsh environment deployment. Architecturally, the PIC18LF4510 uses a modified Harvard core with a hardware multiplier, supporting 8x8 hardware multiplication in a single cycle. The 44-QFN package includes an exposed thermal pad for improved heat dissipation at high MIPS operation. On-board debug is supported via ICSP (In-Circuit Serial Programming) and ICD (In-Circuit Debugger) interfaces. Typical applications include industrial control systems, sensor interfaces, motor control, USB device peripherals, and consumer electronics. The device's automotive-grade peripherals and robust PWM make it well-suited for closed-loop control loops. The 'T' suffix indicates tape and reel packaging for high-volume assembly. When designing with this MCU, ensure proper decoupling with 100nF ceramic capacitors placed close to each power pin and a bulk 10uF capacitor on VDD. The exposed thermal pad must be soldered to the PCB ground plane for optimal thermal and electrical performance. Programming is performed via the ICSP interface using MPLAB X IDE and compatible programmers such as PICkit 3/4 or ICD 3/4. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a complete engineering reference for the PIC18LF4510T-I/ML.

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PIC18LF4510T-I/PT - 8-bit 40MHz 32KB Flash MCU | Microchip TQFP-44
PIC18LF4510T-I/PT

PIC18LF4510T-I/PT - 8-bit 40MHz 32KB Flash MCU | Microchip TQFP-44

The Microchip Technology PIC18LF4510T-I/PT is an 8-bit RISC microcontroller (MCU) from the PIC18F family, featuring 32 KB of Flash program memory (16K x 16), 1536 bytes of RAM, and 36 digital I/O pins. It operates at a maximum clock frequency of 40 MHz and is housed in a 44-pin TQFP (10x10 mm) surface-mount package. This 'LF' variant is the low-voltage part, supporting 2.0V to 5.5V operation, while the non-LF PIC18F4510 supports 4.2V to 5.5V. A PIC microcontroller is a compact, self-contained computer-on-a-chip built around a Harvard-architecture RISC core with on-board Flash, RAM, EEPROM, and a rich set of peripherals (ADC, timers, UART, I2C, SPI, PWM, etc.). Microcontrollers belong to the broader hierarchy: microcontroller -> embedded processor -> semiconductor -> integrated circuit. PIC18F devices sit in Microchip's high-performance 8-bit tier, above the baseline PIC10/12/16 families, and are widely used in cost-sensitive embedded designs where deterministic behavior, low power, and abundant peripheral integration are required. Key features of the PIC18LF4510 include a 10-bit ADC with up to 13 input channels, two 8-bit timers plus three 16-bit timers, two analog comparators, one MSSP (SPI/I2C) and one enhanced USART, an 8/16-bit parallel slave port, and a 10-bit PWM module. The device includes 256 bytes of EEPROM for non-volatile data storage and supports In-Circuit Serial Programming (ICSP) plus In-Circuit Debug (ICD). The PIC18F core delivers 16-bit wide instructions and an 8-bit data path with a hardware multiplier, providing ~10 MIPS peak throughput at 40 MHz. The 'LF' extended voltage range (2.0V-5.5V) enables battery-powered or energy-harvesting applications, while the wide operating temperature range of -40C to +85C suits industrial environments. Internal oscillator options and nanoWatt power management modes reduce quiescent current for sleep scenarios. Typical applications for the PIC18LF4510T-I/PT include industrial control panels, HVAC sensor interfaces, low-power handheld instruments, automotive body modules, and consumer appliances. It is also well-suited to sensor nodes, motor control peripherals, and human-machine interface (HMI) boards where its 36 I/Os and 10-bit ADC cover most mid-complexity analog/digital needs without the cost of a 32-bit MCU. When designing with this part, ensure decoupling capacitors are placed close to VDD/VSS pairs and that the ICSP/ICD pins are accessible on the PCB for firmware updates. The wide 2.0V-5.5V supply range allows direct connection to a single-cell Li-ion pack (with regulator) or a 3.3V regulated rail, simplifying power tree design. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone. As of 2026-09-28, the part is active in Microchip's product line and sourced through 9+ distributors per Octopart.

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PIC18LF4515-I/ML - 8-Bit 40MHz PIC18 MCU 48KB Flash | Microchip
PIC18LF4515-I/ML

PIC18LF4515-I/ML - 8-Bit 40MHz PIC18 MCU 48KB Flash | Microchip

The Microchip Technology PIC18LF4515-I/ML is an 8-bit RISC microcontroller from the PIC18F family, featuring 48 KB (24K x 16) of Flash program memory, 3,968 bytes of data RAM, and 36 I/O pins, operating at up to 40 MHz in a 44-pin QFN (8x8 mm) package with exposed pad. It supports a wide 2.0-3.6V operating voltage range and integrates nanoWatt power-management technology. The part is qualified for the -40C to +85C industrial temperature range, identified by the "I" suffix and the "/ML" QFN package designation. An 8-bit microcontroller (MCU) is a programmable integrated circuit that combines a CPU core, non-volatile program memory, working RAM, and a set of peripherals such as timers, ADC, and communication interfaces on a single die. The PIC18 family sits within Microchip's PIC microcontroller hierarchy (PIC10/12/16/18), belonging to the broader category of RISC microcontrollers in the embedded semiconductor landscape. The "LF" prefix indicates a low-voltage Flash variant, optimized for low-power operation, while the "18" series offers an enhanced 16-bit instruction set and an 8-bit data path. Key features of the PIC18LF4515-I/ML include 48 KB Flash with self-programming support, hardware 8x8 multiplier, C-compiler optimized RISC architecture, 10-bit ADC with multiple channels, multiple USART, MSSP (SPI/I2C) interfaces, and nanoWatt technology for power-conscious designs. The 40 MHz clock rate delivers up to 10 MIPS performance, sufficient for real-time control loops in industrial and consumer applications. The PIC18LF4515 architecture uses a Harvard-style 16-bit instruction/8-bit data bus and includes the standard PIC18 peripheral set. Its Flash memory supports In-Circuit Serial Programming (ICSP) and In-Circuit Debug (ICD), allowing firmware updates and debugging directly in the target system without removing the device. The 44-pin QFN package with exposed thermal pad provides a low-profile footprint while offering good thermal dissipation through PCB copper. Typical applications include industrial control systems, home appliances, automotive body electronics (non-safety), sensor conditioning nodes, USB-class device bridges via MSSP/USART, and low-power remote controls. The combination of 48 KB Flash and 3,968 bytes RAM suits mid-complexity embedded tasks with moderate peripheral requirements. When designing with this part, consider that the -I/ML variant operates only to +85C - for automotive or extended-temperature environments use the -E (extended) or -Q (AEC-Q100) grade. Ensure decoupling capacitors (typically 100 nF plus bulk) are placed close to the VDD/VSS pins and that the exposed pad is soldered to a sufficient copper pour to meet thermal and electrical grounding requirements. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes - including thermal and PCB layout guidance - that go beyond the manufacturer datasheet to give engineers a complete procurement and design reference.

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PIC18LF4515T-I/ML - 8-bit MCU 48KB Flash 40MHz 44-QFN | Microchip
PIC18LF4515T-I/ML

PIC18LF4515T-I/ML - 8-bit MCU 48KB Flash 40MHz 44-QFN | Microchip

The Microchip Technology PIC18LF4515T-I/ML is an 8-bit PIC18 microcontroller running up to 40 MHz with 48 KB of Flash program memory (24K x 16 words) and 3,968 bytes of RAM, housed in a 44-pin QFN (8x8 mm) exposed-pad package. The LF suffix denotes the low-voltage variant operating from 2.0 V to 5.5 V, and the I suffix denotes the industrial temperature range of -40C to +85C. What is a PIC18 microcontroller? PIC18 is Microchip's 8-bit enhanced RISC family within the broader PIC microcontroller lineup, itself a category of single-chip microcontrollers integrating CPU, Flash, RAM, peripherals, and I/O on one die. PIC18F parts add enhanced Flash memory and richer peripherals versus baseline PIC16F parts, and the LF sub-family optimizes core and peripheral logic for low-voltage operation using nanoWatt technology. PIC18 sits at the entry to Microchip's 16-bit dsPIC/PIC24 and 32-bit PIC32 families, covering mid-complexity embedded designs. Key features of the PIC18LF4515T-I/ML include 1,024 bytes of EEPROM, 36 general-purpose I/O pins, a 13-channel 10-bit ADC, three analog comparators, two 8-bit timers plus three 16-bit timers, two capture/compare/PWM modules, two USART modules, one MSSP (master synchronous serial port) supporting both I2C and SPI, and a 10-bit ADC with internal reference options. The 44-QFN package exposes the die ground pad for thermal dissipation, allowing higher-frequency operation in thermally constrained layouts. The PIC18F4515 core uses a 16-bit modified Harvard architecture with an 8-bit data path, 8x8 hardware multiplier, and a hardware divider; the LF variant replaces the F-version's 4.2V-5.5V operating range with a 2.0V-5.5V range suitable for battery and 3.3V systems. nanoWatt technology adds sleep, idle, and oscillator-switching modes for ultra-low standby current, enabling years of operation from a single lithium cell in metering or sensor applications. Typical applications include industrial control panels, single-phase induction motor control (a documented target for this family), home appliances, sensor hubs, USB device stacks (using the USART plus MSSP), instrumentation data loggers, and general-purpose embedded control boards. The wide memory and rich peripheral set also suit automotive body electronics where the I-temperature range is sufficient. When designing with this part, ensure the 44-QFN exposed pad is soldered to a sufficiently large copper pour to meet thermal and electrical requirements; Microchip recommends at least 16 via holes connecting the thermal pad to internal ground planes. For ICE/in-circuit debugging, allocate the dedicated PGC/PGD pins early, and confirm crystal or resonator load capacitance matches the chosen oscillator configuration. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC18LF452-I/L - 8-bit PIC MCU, 32KB Flash, 44-PLCC | Microchip
PIC18LF452-I/L

PIC18LF452-I/L - 8-bit PIC MCU, 32KB Flash, 44-PLCC | Microchip

The Microchip Technology PIC18LF452-I/L is an 8-bit RISC microcontroller with 32KB of Flash program memory and 1536 bytes of SRAM, packaged in a 44-pin PLCC (Plastic Leaded Chip Carrier) form factor. It operates from a wide supply range of 2.5V, 3.3V, or 5V and runs the PIC18 instruction set at up to 10 MIPS (40 MHz clock) with only 77 single-word instructions, simplifying firmware development while preserving the throughput needed for embedded control loops. A PIC microcontroller is a Harvard-architecture CMOS RISC device that separates program and data memory buses, allowing simultaneous fetch and access. The PIC18 family is the upper tier of Microchip's 8-bit line, introducing 16-bit opcodes, a hardware multiplier, linear code space, and priority-enabled interrupts. The 'LF' suffix denotes an extended-voltage variant that runs at lower VDD (down to 2.0V), making it the right choice for battery-powered or low-voltage systems where the standard 'F' part would lose regulation. The PIC18LF452 sits in the family hierarchy as: PIC microcontroller -> PIC18 family -> PIC18F452 sub-family -> PIC18LF452 (low-voltage F452). Key features include 32KB (16K x 16) Flash program memory, 1536 bytes of RAM, 256 bytes of EEPROM, 34 digital I/O pins, a 10-bit 8-channel Analog-to-Digital Converter (ADC), two analog comparators, two Capture/Compare/PWM (CCP) modules, an Enhanced Capture/Compare/PWM (ECCP) module, one USART, one MSSP (Master Synchronous Serial Port) for SPI/I2C, two 8-bit timers and three 16-bit timers, a parallel slave port, and an ICD (In-Circuit Debugger) interface. The instruction cycle time of 100 ns (at 40 MHz) gives deterministic timing for motor control and instrumentation loops. Architecturally, the PIC18LF452-I/L uses a 16-bit instruction word and an 8-bit data path with a hardware multiply (8 x 8 in one cycle). The wide 2.5V/3.3V/5V operating range, combined with nanoWatt power-management modes (Sleep, Idle, and peripheral gating), supports low-power sensor and remote-monitoring nodes. The ADC's 10-bit resolution is adequate for thermocouple/thermistor front-ends and basic instrumentation, while the ECCP module delivers the PWM resolution needed for switched-mode power and motor drive. Typical applications include industrial control panels, motor control (DC, stepper, BLDC), HVAC blowers and actuators, automotive body electronics (non-safety), sensor conditioning front-ends, instrument clusters, security panels, and general-purpose embedded control boards. The 44-pin PLCC package supports a through-hole socket for prototyping or field-replaceable designs, which is common in legacy industrial and aerospace instrumentation. When designing with this part, verify the operating voltage range carefully: the 'F' variant operates from 4.2V to 5.5V, while the 'LF' variant runs from 2.0V to 5.5V. Use decoupling on each VDD/VSS pair, place the 20 MHz (or appropriate) resonator within 1 cm of OSC1/OSC2, and route the ICP/ICD signals away from switching nodes to preserve debug-session stability. This page synthesizes distributor stock, parametric comparison, and drop-in alternatives not found in any single manufacturer datasheet - giving engineers a faster cross-reference path than manual datasheet correlation.

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PIC18LF452-I/P - 8-bit 40MHz 32KB Flash MCU | Microchip
PIC18LF452-I/P

PIC18LF452-I/P - 8-bit 40MHz 32KB Flash MCU | Microchip

The Microchip Technology PIC18LF452-I/P is an 8-bit RISC microcontroller from the PIC18F family running up to 40 MHz (10 MIPS) with 32 KB of on-chip Flash program memory (16K x 16), 1.5 KB of data RAM, and 256 bytes of EEPROM, packaged in a 40-pin PDIP through-hole format. The "LF" prefix designates the low-voltage variant with an extended VDD range of 2.0 V to 5.5 V, while the "I" suffix indicates the industrial temperature grade (-40C to +85C). An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, integrating CPU core, program memory (Flash/ROM), data RAM, peripherals (timers, ADC, UART, I/O), and interrupt control on one die. The PIC18F family sits in the PIC16 -> PIC18 -> PIC24/DSPIC hierarchy and is widely used in industrial control, automotive body electronics, instrumentation, and consumer appliances where deterministic timing and ease of development matter more than raw CPU throughput. The PIC18LF452 features a 16-bit instruction word with only 77 single-word instructions and a 16-level hardware stack with hardware/software interrupt priority. Peripherals include a 10-bit ADC with up to 8 channels, two 8-bit and three 16-bit timers, two capture/compare/PWM (CCP) modules, an enhanced CCP module, a master synchronous serial port (MSSP) configurable for SPI or I2C, an enhanced USART with autobaud, a parallel slave port, and a 10-bit ADC with up to 8 channels. It supports In-Circuit Serial Programming (ICSP) via two pins plus clock and data, plus a low-voltage programming option. The architecture is based on Microchip's enhanced Harvard design with separate code and data buses, allowing an instruction fetch and a data access in the same clock cycle. The wide 2.0 V - 5.5 V range allows the device to run from a single Li-ion cell (with regulator), two alkaline cells, or a 5 V regulated rail, simplifying power-tree design in portable and battery-backed products. Typical applications include industrial control panels, HVAC fan and damper controllers, sensor signal conditioning, small appliance control (coffee machines, washing machines, microwave ovens), and battery-powered instrumentation. The wide VDD range and ICSP make it especially attractive for through-hole hobbyist and educational designs where hand-soldering is preferred. Through-hole PDIP remains the package of choice for prototype boards, breadboards, and replacement parts in legacy designs. When designing with this part, note that the LF (low-voltage) revision differs from the PIC18F452 in its minimum VDD: PIC18F452 needs 4.2 V minimum, while PIC18LF452 works down to 2.0 V. Use the LF variant for battery and low-rail designs; use the F variant for 5 V-only systems where you do not need low-voltage operation. Ensure all VDD and VSS pins are connected per datasheet - leaving any power pin open can cause programming or operation failures. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the standalone datasheet.

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PIC18LF452-I/PT - 8-Bit 40MHz 32KB Flash MCU | Microchip
PIC18LF452-I/PT

PIC18LF452-I/PT - 8-Bit 40MHz 32KB Flash MCU | Microchip

The Microchip Technology PIC18LF452-I/PT is a high-performance 8-bit RISC Flash microcontroller IC with 40 MHz maximum clock, 32 KB (16K x 16) of Flash program memory and 1.5 KB of RAM, housed in a 44-pin TQFP (10x10 mm) package. It belongs to the PIC18F family and executes instructions in 100 ns (10 MIPS) while supporting a wide operating voltage range of 2.0 V to 5.5 V, making it suitable for both 3.3 V and 5 V systems. What is a microcontroller (MCU)? A microcontroller is a single-chip computer that integrates a CPU core, non-volatile program memory (Flash/ROM), volatile data memory (RAM), and programmable peripheral I/O into one package. Microcontrollers belong to the broader category of embedded processors -> microcontrollers -> 8-bit microcontrollers -> PIC microcontrollers (Microchip). The PIC18F family specifically delivers enhanced instruction sets, hardware multipliers, and C-friendly architecture while remaining upwardly compatible with older PIC16 and PIC17 devices. Key features of the PIC18LF452-I/PT include 34 digital I/O pins, 8 channels of 10-bit ADC, two 8-bit timers plus three 16-bit timers, a 16-bit capture/compare/PWM (CCP) module and an Enhanced CCP module, two USART modules, a Master Synchronous Serial Port (MSSP) supporting SPI and I2C, and an 8-bit parallel slave port. The device also incorporates a 10-bit ADC with up to 8 inputs, a programmable Brown-out Reset (BOR), and a watchdog timer with its own on-chip RC oscillator for maximum reliability. The architecture is built on a RISC core with 77 single-word instructions, a hardware 8x8 multiplier, and 32 KB of self-programmable Flash that supports In-Circuit Serial Programming (ICSP) and In-Circuit Debug (ICD). Internal oscillator options and four crystal modes provide flexible clocking, while low-power features such as run, idle, and sleep modes plus on-chip power-on reset support battery-friendly designs across industrial, consumer, and automotive (aftermarket) use cases. Typical applications include industrial control boards, motor control (DC brushed, stepper, and small BLDC via PWM), home appliance control panels, sensor interface hubs, USB/HID human-interface devices, low-cost data acquisition front-ends, automotive body and accessory ECUs (where AEC-Q100 is not required), and educational/development platforms where PIC18 software reuse and toolchain maturity are valued. When designing with the PIC18LF452-I/PT, ensure the MCLR pin is properly pulled up and that ICSP programming lines (PGC/PGD) are accessible via header or test points. Use decoupling capacitors of 0.1 uF and 10 uF near VDD/VSS pairs, and provide adequate analog and digital ground separation when using the ADC. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on the manufacturer datasheet alone, giving engineers a single reference for sourcing, replacement, and PCB bring-up decisions.

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