Microcontroladores

Productos (18756)

PIC18LF23K22T-I/ML - 8-Bit XLP MCU, 64MHz, 8KB Flash, QFN-28
PIC18LF23K22T-I/ML

PIC18LF23K22T-I/ML - 8-Bit XLP MCU, 64MHz, 8KB Flash, QFN-28

The Microchip PIC18LF23K22T-I/ML is an 8-bit PIC18 RISC microcontroller featuring 8KB Flash program memory, 768 bytes RAM, and 256 bytes EEPROM, housed in a 28-pin QFN (6x6 mm) package with an exposed thermal pad. It operates from 1.8V to 3.6V on the LF (low-power F) process variant and supports clock speeds up to 64MHz internally (16MHz external), targeting battery-friendly designs that need true nanoWatt XLP sleep behavior. The integrated peripherals include a 10-bit ADC, multiple PWM modules, two rail-to-rail comparators, an EUSART, MSSP (SPI/I2C), and 25 I/O pins, all selectable through flexible PPS mapping. What is a PIC18F/LF K22 microcontroller? The PIC18 K22 family is a high-performance 8-bit PIC18 core range built around Microchip's enhanced RISC architecture with a hardware multiplier, C-compiler-friendly memory model, and XLP (eXtreme Low Power) sleep modes designed for energy-harvesting and battery-backed applications. Within the broader taxonomy, the part is a microcontroller -> 8-bit MCU -> PIC18 family -> nanoWatt XLP -> embedded control IC, making it a workhorse for general-purpose embedded designs. The PIC18LF23K22T-I/ML uses a 16-bit instruction word with 8-bit data path, an internal 16MHz to 64MHz HFINTOSC, and a wide set of clock sources selectable per firmware. Its self-programming Flash, ICSP, and on-chip debug support pair naturally with MPLAB X IDE, MPLAB Code Configurator, and the PICkit 5 programmer/debugger referenced in the Microchip product family page. Typical applications include portable medical devices, IoT sensor nodes, low-power remote controls, consumer HMI panels, and industrial sensor conditioning. When selecting the 'LF' variant, designers trade upper supply headroom (3.6V max) for the lowest active and sleep currents in the family, which is the right trade when the rail is a single Li-ion cell or 2x AA alkaline cells. Design tip: route the exposed pad (EP) to a continuous ground copper pour with multiple thermal vias. Without proper EP grounding, junction-to-ambient thermal resistance rises sharply and ADC readings near full-scale will drift. This page consolidates distributor pricing, drop-in alternatives, and design notes not found in the manufacturer datasheet.

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PIC18LF23K22T-I/MV - 8KB Flash, 25MHz 8-bit MCU | Microchip
PIC18LF23K22T-I/MV

PIC18LF23K22T-I/MV - 8KB Flash, 25MHz 8-bit MCU | Microchip

The Microchip PIC18LF23K22T-I/MV is a low-power, high-performance 8-bit microcontroller in the PIC18 K22 family, featuring 8 KB of self-programmable Flash program memory, 768 bytes of RAM, and a 256-byte data EEPROM, housed in a 28-pin UQFN (MV) package measuring 6 × 6 mm. It operates from a 2.0 V to 5.5 V supply voltage across an industrial temperature range of −40 °C to +85 °C, with a maximum clock speed of 25 MHz (62.5 ns instruction cycle) delivering up to 8 MIPS throughput. An 8-bit microcontroller (MCU) is a programmable computing engine built around an 8-bit data path, on-chip Flash program memory, RAM, and a rich set of digital and analog peripherals, occupying a position in the hierarchy between simple fixed-function logic and full 32-bit microprocessors. Within Microchip's portfolio, the PIC18 family represents an enhanced 8-bit architecture that bridges legacy PIC16 designs and the more powerful dsPIC/PIC24 line, balancing deterministic execution with modern peripherals such as USB, I²C, SPI, ECAN, and multi-channel 10-bit ADC. Key features of the PIC18LF23K22 include nanoWatt XLP technology for ultra-low-power sleep currents (down to ~50 nA typical in sleep), 16 enhanced I/O ports supporting peripheral pin select, two analog comparators with rail-to-rail inputs, up to 17 channels of 10-bit ADC, two capture/compare/PWM modules, an enhanced USART, two MSSP (SPI/I²C) ports, and a 16-bit timer/counter. The UQFN-28 package exposes the full peripheral set in a compact 6 × 6 mm land pattern. Architecturally, the PIC18LF23K22T-I/MV uses an enhanced Harvard architecture with separate program and data buses, a hardware multiplier for 8 × 8 single-cycle operations, and prioritized interrupt handling. The 'LF' prefix indicates the low-voltage / wide VDD range variant; the 'T' suffix denotes Tape and Reel packaging. The 'I' industrial temperature rating and 'MV' package designator round out the part code. Its XLP nanoWatt features include ultra-low-power wake, deep sleep with RAM retention, and multiple idle modes — critical for battery-powered edge devices. Typical applications include portable industrial sensor nodes, low-power IoT edge devices, USB/CDC human-interface peripherals, battery-backed instrumentation, automotive body controllers (sub-systems, not AEC-Q100 powertrain), and small home appliances. The wide 2.0–5.5 V VDD range lets it interface to both 3.3 V and 5 V analog front-ends without level shifting. A key design consideration is decoupling: place one 100 nF ceramic bypass capacitor directly across VDD/VSS as close to the package as possible, plus a bulk 1 µF–10 µF tantalum or ceramic near the regulator. For low-power designs, use the deep-sleep mode with the RTCC running for timekeeping, waking only on interrupt edges. The 28-pin UQFN footprint also requires thermal pad soldering for reliable mass-production assembly. This page synthesizes distributor pricing, same-family pin-compatible variants, and practical design notes that go beyond the manufacturer datasheet, giving engineers a single decision-ready reference.

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PIC18LF23K22T-I/SO - 8KB Flash 8-bit MCU 64MHz XLP SOIC-28
PIC18LF23K22T-I/SO

PIC18LF23K22T-I/SO - 8KB Flash 8-bit MCU 64MHz XLP SOIC-28

The Microchip Technology PIC18LF23K22T-I/SO is an 8-bit PIC18 microcontroller in the PIC® XLP™ 18K family, integrating 8KB of Flash program memory (4K x 16 words), 768 bytes of SRAM, and 256 bytes of EEPROM in a 28-pin wide-body SOIC (SO) package. It executes instructions at up to 64 MHz (16 MIPS throughput) from an internal oscillator, operating from a 1.8V to 3.6V supply targeted at low-voltage and battery-powered designs. The 'T' suffix denotes tape-and-reel packaging and the 'I' suffix specifies the industrial -40C to +85C temperature range. A microcontroller (microcontroller unit, MCU) is a single-chip computer containing a CPU core, program memory (Flash/ROM), data memory (RAM), EEPROM, peripherals, and I/O. The PIC18 family uses an enhanced 8-bit RISC architecture with hardware multiplier, single-cycle hardware stack, and C-friendly instruction set. The PIC18LF sub-family is the F-variant's low-voltage twin optimized for nanoWatt XLP (eXtreme Low Power) operation, with deep sleep currents below 50 nA typical. Key features include 25 analog channels supporting 10-bit ADC, two comparators, a 5-bit DAC, Capture/Compare/PWM (CCP/ECCP) modules, MSSP for SPI/I2C, Enhanced USART, mTouch capacitive sensing, and 25 mA source/sink capable I/O. The wide SOIC-28 footprint provides 23 usable I/O pins, making this part well-suited for mixed-signal embedded applications where board space is at a premium. The PIC18LF23K22 is built on Microchip's high-performance 8-bit core with 16-bit instruction word, single-cycle ALU, and 31-level hardware stack, enabling deterministic interrupt latency. NanoWatt XLP peripherals such as RTCC, deep-sleep brown-out reset (DSBOR), and ultra-low-power watchdog timer allow battery lifetimes measured in years, which is the core differentiator versus the 5V-only PIC18F23K22 sibling. Typical applications include handheld battery-powered instruments, IoT sensor nodes, home automation controls, low-power wireless companion MCUs, and industrial sensor interface boards. The industrial temperature grade makes it usable in factory and outdoor environments. When designing with this part, place a 100 nF decoupling capacitor as close as possible to VDD and a bulk capacitor (1–10 uF) near the IC. Configure unused I/O as outputs tied low to minimize current draw in sleep modes, and follow Microchip application note AN1523 for nanoWatt XLP sleep current optimization. This page synthesizes distributor pricing, drop-in tape-and-reel / package variants, cross-family pin-compatible equivalents, and practical low-power design notes not found in the manufacturer datasheet alone.

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PIC18LF23K22T-I/SS - 8KB Flash 8-bit XLP MCU 28-SSOP | Microchip
PIC18LF23K22T-I/SS

PIC18LF23K22T-I/SS - 8KB Flash 8-bit XLP MCU 28-SSOP | Microchip

The Microchip Technology PIC18LF23K22T-I/SS is an 8-bit RISC PIC18 microcontroller with nanoWatt XLP extreme-low-power technology, 8KB (4K x 16) of Flash program memory, and 768 bytes of SRAM, housed in a 28-pin SSOP (5.30 mm body) package supplied on tape-and-reel. The 'LF' variant operates across 1.8V to 3.6V, targeting battery-powered and energy-harvesting designs where the standard PIC18F (2.0V to 5.5V) would draw too much quiescent current. The 'T' suffix in the part number designates tape-and-reel packaging, and '/SS' specifies the 28-pin SSOP form factor. According to the manufacturer datasheet, this part combines a 64 MHz internal oscillator with a rich peripheral set including ADC, comparators, PWM, EUSART, MSSP (SPI/I2C) and multiple capture/compare modules. An 8-bit PIC microcontroller is a Harvard-architecture RISC device built around a 16-bit instruction word and an 8-bit data path, providing deterministic interrupt latency, single-cycle multiplication, and a mature MPLAB X IDE toolchain. The PIC18 family sits in Microchip's mid-range performance tier above PIC16 and below dsPIC/PIC32, and is widely used where developers need more peripherals and code space than entry-level MCUs without paying for 32-bit cores. The 'nanoWatt XLP' label refers to Microchip's low-power process enhancements that allow sleep currents in the nanoamp range. Key features of the PIC18LF23K22T-I/SS include: 8KB Flash, 768 bytes SRAM, 256 bytes EEPROM, up to 25 I/O pins, a 10-bit ADC with up to 17 channels, two analog comparators, two CCP modules, one ECCP module, two EUSART modules, one MSSP (SPI/I2C) module, and four 8-bit timers plus three 16-bit timers. The industrial temperature grade (-40C to +85C) supports harsh-environment deployment, and the XLP technology enables typical sleep currents under 100 nA with RTC running. Typical applications for this device include battery-powered IoT sensor nodes, low-power wireless remotes, wearable health monitors, smart meters, and consumer electronics where extended battery life outweighs the need for higher MIPS. The wide 1.8V to 3.6V operating range allows direct connection to single-cell Li-ion or two-AA battery stacks without additional regulation. When designing with this MCU, ensure the supply decoupling network follows the manufacturer reference design with a 100 nF ceramic capacitor close to VDD. The MCLR pin should use the recommended 10 kohm pull-up to VDD for reliable reset behavior. Industrial temperature parts such as the '-I' variant must be selected for any design that will operate below 0C or above +70C.

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PIC18LF2410-I/ML - 8-bit 40MHz 16KB Flash MCU 28-QFN | Microchip
PIC18LF2410-I/ML

PIC18LF2410-I/ML - 8-bit 40MHz 16KB Flash MCU 28-QFN | Microchip

The Microchip Technology PIC18LF2410-I/ML is an 8-bit PIC18F-family flash microcontroller running up to 40 MHz (10 MIPS) with 16 KB (8K x 16) of on-chip flash program memory, packaged in a 28-lead QFN (6x6 mm) with an exposed thermal pad. The 'LF' suffix designates the wide-bandgap low-voltage process variant that supports operation from 2.0 V to 5.5 V, while the 'F' (vs. 'LF') siblings operate down to 4.2 V only. The die integrates 768 bytes of RAM, 256 bytes of EEPROM, and the same peripheral set as the rest of the PIC18F2X1X/4X1X family, including a 10-bit A/D converter, multiple timers, USART, MSSP (SPI/I2C), and nanoWatt power management for battery-aware designs. A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, working RAM, and configurable I/O peripherals. The PIC18F family from Microchip uses an enhanced Harvard RISC architecture with a C-compiler-optimized instruction set, single-cycle hardware multiply, and internal oscillator support from 31 kHz to 8 MHz. Within the broader semiconductor taxonomy, an MCU sits between a microprocessor (no on-chip memory or peripherals) and a system-on-chip (SoC, which adds radios and graphics). MCUs are the workhorse of embedded electronics wherever deterministic real-time control is needed at low cost. Key features of the PIC18LF2410 include up to 10 MIPS CPU throughput, an internal oscillator block selectable across 31 kHz to 8 MHz, a fail-safe clock monitor that permits safe shutdown if the primary clock is lost, a watchdog timer with its own dedicated RC oscillator, and nanoWatt Technology for sleep currents below 1 uA in typical applications. Twenty-five general-purpose I/O pins are brought out on the QFN-28, and the device supports in-circuit serial programming (ICSP) via two pins, eliminating the need for a pre-programmed boot loader. The device is well suited to industrial sensing nodes, low-cost sensor signal conditioning, USB-less consumer peripherals, and general-purpose logic replacement where a small PIC18 footprint, low-voltage operation, and 16 KB of code space are sufficient. The 28-QFN exposed pad provides a low thermal resistance path to the PCB copper pour, which helps dissipate heat when the MCU is clocked at the full 40 MHz rate and multiple peripherals are active simultaneously. When designing with this part, ensure the exposed pad is soldered to a continuous ground copper pour to meet the 31 C/W (typical) thermal resistance claim and to provide the lowest-inductance return path for the high-speed internal oscillator. Industrial temperature parts (the 'I' suffix) are rated -40C to +85C, suitable for non-automotive indoor and outdoor industrial enclosures. This page synthesizes distributor inventory, parametric alternatives, and practical layout guidance not collected in the original datasheet. This page integrates distributor pricing, drop-in alternatives, and PCB-level design notes that go beyond the manufacturer datasheet, giving engineers a single reference for BOM selection, second sourcing, and layout review of the PIC18LF2410-I/ML.

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PIC18LF2410T-I/ML - 16KB Flash 8-bit MCU 40MHz QFN-28 | Microchip
PIC18LF2410T-I/ML

PIC18LF2410T-I/ML - 16KB Flash 8-bit MCU 40MHz QFN-28 | Microchip

The Microchip Technology PIC18LF2410T-I/ML is an 8-bit PIC18 microcontroller with 16KB Flash, 768B RAM and 25 digital I/O pins, housed in a 28-pin QFN (6x6) package with exposed pad and supplied on Tape & Reel. It executes instructions at up to 10 MIPS from a 40 MHz oscillator and supports 2.5V, 3.3V, and 5V operation, with the "LF" prefix indicating wide-voltage NanoWatt technology operation across that entire 2.0-5.5V range. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, on-chip Flash program memory, RAM, peripherals, and a CPU core. Within the broader taxonomy, an MCU sits below microprocessor and above discrete logic; the PIC18 family sits in Microchip's mid-range 8-bit portfolio, above PIC10/12/16 baseline parts but below PIC24/dsPIC and PIC32 (32-bit) families. The "LF" series adds NanoWatt sleep modes for battery-powered designs, while the "F" (without L) variant is the 4.2-5.5V-only counterpart. Key features of this device include 16KB (8K x 16) of self-programmable Flash, 768 bytes of SRAM, a 10-bit ADC with up to 10 channels, an internal oscillator selectable from 31 kHz to 8 MHz, fail-safe clock monitoring, and a hardware 8x8 single-cycle multiplier. Enhanced peripherals include multiple USART, MSSP (SPI/I²C), CCP/ECCP modules, and NanoWatt power management with multiple idle and sleep modes drawing microamp-level currents. The exposed thermal pad on the QFN-28 package reduces junction-to-ambient thermal resistance. The PIC18 CPU uses a 16-bit instruction word with an 8-bit data path, a RISC-optimized Harvard architecture, and a C-friendly instruction set that includes a hardware 8x8 multiplier and a hardware divider. Internal oscillator support and fail-safe clock monitor provide clock redundancy, while self-programmable Flash enables in-application firmware updates without an external programmer. Typical applications include industrial sensor interfaces, low-power battery-powered instrumentation, USB/HID peripherals, home appliances, and consumer devices requiring 8-bit processing with mixed-signal I/O. The wide 2.0-5.5V range suits both 3.3V and 5V designs with a single BOM line. The "T" suffix indicates Tape & Reel packaging, and the "-I" indicates an industrial -40°C to +85°C operating temperature range. When designing with this device, validate that the 28-pin QFN land pattern matches your PCB footprint and confirm the -I temperature grade suits your environment. Designers transitioning from PIC18F2410 (non-LF) parts must verify regulator support for sub-4.5V operation. This page synthesizes the manufacturer datasheet, distributor pricing as of 2026-09-28, drop-in alternatives including the tape-and-reel and tray variants, and practical design notes not found in a single datasheet.

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PIC18LF2410T-I/SO - 16KB Flash MCU 40MHz 28-SOIC | Microchip
PIC18LF2410T-I/SO

PIC18LF2410T-I/SO - 16KB Flash MCU 40MHz 28-SOIC | Microchip

The Microchip Technology PIC18LF2410T-I/SO is an 8-bit PIC18 microcontroller featuring a 40 MHz CPU clock, 16 KB (8K x 16) of Flash program memory, 768 bytes of RAM, and a 28-pin SOIC wide-body package on Tape & Reel. It operates from 2.0 V to 5.5 V, qualifies for industrial temperature range (-40C to +85C), and supports 25 digital I/O lines plus native I2C, SPI, and USART peripherals for embedded connectivity. What is an 8-bit PIC microcontroller? An 8-bit MCU executes instructions on 8-bit data buses using a RISC (Reduced Instruction Set Computer) architecture. PIC18F-family devices from Microchip Technology are widely used in cost-sensitive embedded systems, motor control, and consumer electronics. They sit hierarchically under microcontroller > RISC microcontroller > 8-bit MCU > PIC18F sub-family. The PIC18LF2410 belongs specifically to the LF (Low-Voltage Flash) sub-line, which supports extended supply ranges down to 2.0 V, suitable for battery-powered and 3.3 V designs. Key features include 10-bit Analog-to-Digital Converter (ADC) channels for sensor interfacing, nanoWatt technology for power-efficient sleep modes, and a single-phase induction motor control kernel that simplifies BLDC/AC-IM drive firmware. The 28-SOIC wide-body package provides robust mechanical handling for hand-soldered prototypes and assembly-line volume production, while the Tape & Reel (T) suffix indicates factory packaging for SMT pick-and-place equipment. Architecturally, the PIC18LF2410 uses a Harvard-bus RISC core with hardware multiplier, 32-level deep hardware stack, and a 16-bit instruction word providing 8K single-word instructions per 16 KB Flash region. NanoWatt Technology introduces multiple idle and sleep modes, with on-the-fly switching between primary oscillator sources, allowing engineers to balance throughput against quiescent current in energy-constrained applications. Typical applications include single-phase induction motor control, sensor signal conditioning with built-in ADC, low-power handheld instruments, industrial control panels with serial communication (USART) to SCADA systems, and white-goods control boards such as washing machines or HVAC fans. The I2C/SPI peripherals also enable multi-MCU master/slave configurations in distributed systems. When designing with this device, ensure that Vdd decoupling capacitors (typically 100 nF ceramic plus 10 uF bulk) are placed within 5 mm of the supply pin. Use the in-circuit debugger ICD 3 or PICkit 4 for programming the Flash and configuring configuration bits via MPLAB X IDE. Do not exceed 40 MHz Fosc or operate outside the -40C to +85C range. This page combines verified Microchip datasheet parameters, alternative pin-compatible parts in the same SOIC-28 footprint, and practical design notes not aggregated in the manufacturer datasheet.

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PIC18LF242-I/SP - 8-Bit 40MHz PIC18 MCU 16KB Flash 28-SPDIP | Microchip
PIC18LF242-I/SP

PIC18LF242-I/SP - 8-Bit 40MHz PIC18 MCU 16KB Flash 28-SPDIP | Microchip

The Microchip PIC18LF242-I/SP is an 8-bit CMOS FLASH-based PIC microcontroller delivering 10 MIPS (40 MHz) performance with 16 KB (8K x 16) of on-chip program memory, packaged in a 28-pin SPDIP (Skinny Plastic DIP) through-hole footprint. Operating from 2.0 V to 5.5 V, the LF variant is optimized for low-voltage and battery-backed designs where the standard PIC18F242 would not tolerate rail droop. The part integrates 768 bytes of RAM, 256 bytes of EEPROM, 23 digital I/O pins, and the PIC18 instruction set with 16-bit-wide opcodes that improve code density over PIC16 cores. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, integrating a CPU, program memory (FLASH or ROM), data memory (RAM), EEPROM, peripherals, and interrupt logic on one die. The PIC18 family sits in Microchip's mid-range 8-bit hierarchy: PIC10/12/16/18 -> 8-bit MCU -> microcontroller -> embedded controller. PIC18 parts add a linear program-memory map, hardware multiplier, C-friendly architecture, and prioritized interrupts that the smaller PIC16 cores lack, making them the workhorse for cost-sensitive 8-bit designs that need real peripherals like CAN, USB, or Enhanced USART. Key features include a 10-bit ADC (5 channels on this 28-pin part), 1 capture/compare/PWM module, 1 Enhanced USART, MSSP for SPI/I2C, two 8-bit timers plus three 16-bit timers, and a programmable Watchdog Timer with its own on-chip RC oscillator. The FLASH program memory is in-circuit serial programmable through ICSP, and the device supports ICD2/ICD3 real-time in-circuit debugging with two I/O pins dedicated to that purpose. With four oscillator modes including a 31 kHz LP mode and an 8x software PLL, the LF242 is tailored for low-power and crystal-stabilized timing. The PIC18LF242-I/SP is fabricated on Microchip's CMOS FLASH process with low-power enhancements versus the PIC18F242, including extended supply range down to 2.0 V (PIC18F242 bottom is 4.2 V). This makes the LF part the correct choice when the rail is sourced from a Li-ion cell, a 3.3 V LDO, or a regulated 2.5 V analog domain, while the F part is the more cost-effective pick for 5 V-only industrial boards. Typical applications include industrial control panels, low-power instrumentation, sensor signal conditioning, motor control front-ends, and battery-backed security or HVAC peripherals. In each case the PIC18LF242 supplies 5-V-style peripherals from a 3.3 V rail while leaving enough MIPS for state-machine glue logic and a simple RTOS loop. When designing with this device, ensure the supply decoupling follows Microchip's PIC18 LF family reference: one 100 nF ceramic at VDD and one bulk (>=10 uF tantalum or 47 uF aluminum) at the board's power entry. Reserve pins RB6 and RB7 for ICSP clock/data; adding series resistors or a buffer on these pins will block in-circuit programming and debugging. This page combines distributor pricing, parametric comparison with same-family parts, and 28-SPDIP-compatible drop-in alternatives that are not always visible on the official PIC18 datasheet.

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PIC18LF2420-I/SO - 8-bit 40MHz MCU 16KB Flash 28-SOIC | Microchip
PIC18LF2420-I/SO

PIC18LF2420-I/SO - 8-bit 40MHz MCU 16KB Flash 28-SOIC | Microchip

The Microchip Technology PIC18LF2420-I/SO is an 8-bit RISC PIC18-family microcontroller running up to 40 MHz, integrating 16 KB (8K x 16) of Flash program memory, 768 bytes of SRAM and 256 bytes of EEPROM data memory in a 28-pin SOIC package. The LF variant is the low-power, wide-voltage node of the PIC18F2420 family, operating from 2.0 V to 5.5 V with Microchip's nanoWatt technology for dynamic power management. The 28-SOIC footprint delivers 25 digital I/O pins, 10-bit multi-channel ADC, two analog comparators, two USART modules, one MSSP (SPI/I2C), two capture/compare/PWM modules and a 16-bit timer architecture. What is a PIC18 microcontroller? PIC18 is Microchip's enhanced 8-bit RISC core family, evolving the baseline PIC16 architecture with a 16-bit instruction word, linear memory addressing, hardware multiplier, prioritized interrupts and C-friendly compiler support. As 8-bit MCUs, PIC18 parts sit in the broader taxonomy of microcontroller -> embedded controller -> semiconductor device, and the LF sub-family specifically targets battery-friendly designs through nanoWatt power-saving modes. The architecture's deterministic single-cycle instruction execution makes PIC18 well-suited for real-time control loops where predictable latency matters more than raw throughput. Key differentiating features of the PIC18LF2420-I/SO include the 2.0 V to 5.5 V operating range with full peripheral operation across the band, 10-bit ADC with up to 13 input channels sharing package pins, internal oscillator options selectable via configuration fuses, and nanoWatt idle/sleep modes that drop core current to the microampere range. The 28-SOIC industrial-temperature grade (-40C to +85C, denoted by the I suffix) supports harsh-environment designs while the LF voltage range allows direct battery connection (two AA cells) without a boost converter. Technical depth: the silicon uses CMOS Flash technology with self-programmability in the application circuit, eliminating external boot memory. The enhanced 16-bit instruction set supports direct, indirect, relative and indexed addressing, plus a hardware 8x8 multiplier cycle that accelerates 16-bit arithmetic. Three external interrupt sources and a configurable interrupt controller service the timer, capture/compare, ADC, USART and MSSP peripherals. Typical applications include industrial sensor conditioning, automotive body controllers, building automation nodes, low-power remote controls, consumer appliance user interfaces and battery-backed instrumentation. The 40 MHz throughput with 16 MIPS sustained performance, combined with deep sleep and RTCC wake-up, makes it a strong fit for mains-battery hybrid designs. A key design consideration: the LF silicon requires the LF configuration bits set correctly; substituting with the non-LF (F-only) variant in the same socket is electrically compatible at 4.5 V to 5.5 V but not below 4.2 V, so always verify the brown-out and voltage-rail spec when designing for two-cell alkaline supplies. Decouple VDD/VSS with 100 nF ceramic placed within 5 mm of the pins to suppress switching transients from the internal charge pump. This page synthesizes verified distributor pricing, drop-in PIC18-family alternatives and practical design notes not found in the manufacturer datasheet alone, giving engineers a single reference for sourcing, second-sourcing and design-in of the PIC18LF2420-I/SO.

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PIC18LF2420T-I/ML - 8-bit PIC MCU, 16KB Flash, 40MHz, 28-QFN | Microchip
PIC18LF2420T-I/ML

PIC18LF2420T-I/ML - 8-bit PIC MCU, 16KB Flash, 40MHz, 28-QFN | Microchip

The Microchip Technology PIC18LF2420T-I/ML is an 8-bit PIC18 RISC microcontroller featuring 16KB (8K x 16) of Flash program memory, 768 bytes of RAM, and a 40 MHz maximum CPU clock, all housed in a 28-pin QFN (6x6 mm) package with exposed pad (ML suffix, tape-and-reel). It belongs to the PIC18LF2420/2520/4420/4520 family and is the low-voltage variant supporting 2.5V, 3.3V, and 5V operation across an industrial -40C to +85C temperature range. An 8-bit microcontroller (MCU) is a programmable integrated circuit that combines a CPU, memory, and peripherals on a single die. Within the broader semiconductor taxonomy, the PIC18LF2420T-I/ML sits in the hierarchy: microcontroller -> embedded MCU -> 8-bit MCU -> PIC18 family -> PIC18LF2420 sub-family -> microchip flash-based RISC controller. 8-bit MCUs remain widely used for cost-sensitive, deterministic control tasks where 32-bit performance is unnecessary, and PIC18 parts in particular are favored for their Harvard architecture, mature toolchain (MPLAB X IDE, XC8 compiler), and broad peripheral integration. Key features include a 10-bit ADC (verified from third-party parametric data) with up to 10 channels, a 25 I/O pin count, two analog comparators, a USART, MSSP (I²C/SPI), two 8-bit timers plus three 16-bit timers, a 10-bit PWM module, and nanoWatt Technology power management for low-power sleep modes. The LF prefix indicates the wide-voltage core that supports battery-backed and 3.3V designs, while the -I/ML industrial-grade temperature range and QFN package suit compact, surface-mount industrial and consumer products. Architecturally, the PIC18LF2420T-I/ML uses an enhanced Harvard RISC core with a hardware multiplier (8x8 single-cycle), a 32-level hardware stack, and 75 instructions including C-optimized extensions. The 16KB self-programmable Flash supports ICSP (In-Circuit Serial Programming) and a configurable oscillator block (8 MHz internal RC) with PLL, eliminating external crystals in many applications. Typical applications include industrial sensor conditioning with on-chip ADC, USB-less human-interface devices (HIDs), low-power remote controls, small appliances, battery management front-ends, and HVAC controllers. The 28-QFN package also suits motor-control signal boards where board real-estate is constrained. When designing with this device, note that the LF variant has slightly different DC characteristics than the F variant (PIC18F2420) at >4.2V inputs; for designs that may see >4.2V, consult the family datasheet. The exposed thermal pad on the QFN must be soldered to a sufficiently large copper pour for thermal and electrical performance. This page consolidates distributor pricing, pin-compatible alternatives, and design notes not collated on any single manufacturer page.

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PIC18LF2423-I/SO - 8-Bit 40MHz 16KB Flash MCU 28-SOIC | Microchip
PIC18LF2423-I/SO

PIC18LF2423-I/SO - 8-Bit 40MHz 16KB Flash MCU 28-SOIC | Microchip

The Microchip PIC18LF2423-I/SO is an 8-bit RISC microcontroller from the PIC18F family, featuring 16KB (8K x 16) of enhanced Flash program memory and operating at up to 40 MHz, housed in a 28-pin SOIC (7.50 mm / 0.295 inch wide) package. It supports 2.0V to 5.5V operation in its low-power LF variant, integrating 768 bytes of RAM and 256 bytes of EEPROM for non-volatile data storage. The device delivers 25 digital I/O pins suitable for mixed-signal embedded designs. What is a Microcontroller (MCU)? A microcontroller is a single-chip computer containing a CPU core, program memory (Flash/ROM), data memory (RAM), non-volatile storage (EEPROM), and a range of peripheral interfaces such as ADC, timers, UART, SPI, and I/O ports. MCUs belong to the broader category of embedded processors and are foundational building blocks of modern electronic systems. Within Microchip's PIC18F family, the PIC18LF2423 is the LF (low-voltage/low-power) variant, distinguished from the standard PIC18F2423 by its lower core voltage range. Key features of the PIC18LF2423-I/SO include a 12-bit Analog-to-Digital Converter (ADC) with up to 12 channels, nanoWatt power management for reduced sleep current, and enhanced Flash memory with self-programming capability. The architecture supports both internal and external oscillator modes, and the device integrates multiple communication peripherals such as EUSART, MSSP (SPI/I2C), and enhanced CCP modules. The industrial temperature grade (-40C to +85C) ensures operation in harsh environments. Technical depth: The PIC18LF2423 uses a Harvard architecture with separate program and data buses, enabling simultaneous instruction fetch and operand access. The enhanced Flash supports 100,000 erase/write cycles typical, and the 16-bit instruction word with 8-bit data path delivers roughly 10 MIPS performance at 40 MHz. nanoWalt technology offers multiple Idle and Sleep modes with on-the-fly oscillator switching, allowing power budgets in the microamp range when the CPU is halted. Typical applications include industrial control systems, low-power sensor interfaces, battery-operated instruments, automotive body electronics (non-safety), consumer appliances, and USB/HID peripherals when paired with an external transceiver. The wide voltage range also makes the part attractive for 3.3V and 5V mixed-logic designs without level shifters. Design considerations: For reliable Flash writes, ensure VDD stays within the regulated 2.0V-5.5V window; below this threshold, in-circuit programming may fail. The 28-SOIC package has limited thermal dissipation, so at 40 MHz with peripheral-heavy workloads a small copper pour is recommended for production boards. This page synthesizes distributor pricing, drop-in compatible alternatives from Microchip's PIC18F family, and practical design notes not found in the manufacturer datasheet, giving engineers a single source for selection decisions on the PIC18LF2423-I/SO.

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PIC18LF2431-I/MM - 8-bit 40MHz 16KB Flash MCU 28-QFN | Microchip
PIC18LF2431-I/MM

PIC18LF2431-I/MM - 8-bit 40MHz 16KB Flash MCU 28-QFN | Microchip

The Microchip Technology PIC18LF2431-I/MM is an 8-bit CMOS flash-based microcontroller from the PIC18F family, delivering up to 40 MHz (10 MIPS) performance with 16 KB of program Flash and 768 bytes of RAM in a 28-pin QFN-S (6x6 mm) package with exposed pad. The 'LF' prefix indicates the wide-voltage 2.0 V to 5.5 V operating range, while the enhanced 14-bit PWM module, 10-bit A/D converter, and nanoWatt power management make it a purpose-built device for motor control and power-conversion applications. A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, working RAM, and peripheral interfaces. The PIC18F family uses a modified Harvard RISC architecture with 16-bit opcodes and 8-bit data, supported by 77 single-word instructions. Within the broader taxonomy, this part belongs to microcontrollers -> 8-bit MCUs -> embedded controllers -> semiconductors. The 'LF' low-voltage variant enables battery-powered or USB bus-powered designs, while the standard PIC18F2431 version targets 4.2 V to 5.5 V systems. Key features include 16 KB Flash program memory (8K x 16 words), 768 bytes SRAM, 256 bytes EEPROM, 22 I/O pins, an enhanced Capture/Compare/PWM module with up to 4 PWM channels and configurable resolution up to 14 bits, a 10-bit multi-channel A/D converter, two analog comparators, USART, MSSP (SPI/I2C), and nanoWatt Technology with multiple idle/sleep modes for sub-µA standby current. The high-performance PWM block includes programmable dead-time control, center-aligned or edge-aligned modes, and dedicated fault input pins for safe motor commutation. The device is built on a CMOS process with a 16-bit instruction word and 8-bit data path, executing most instructions in one cycle (100 ns at 40 MHz oscillator). The high-endurance Flash supports 100K erase/write cycles typical, and EEPROM supports 1M cycles. This combination of deterministic execution, integrated motor-control peripherals, and wide voltage range makes the PIC18LF2431 well-suited for closed-loop BLDC, PMSM, and brushed-DC control as well as lighting ballasts and switched-mode power supplies. Typical applications include brushless DC (BLDC) motor control, switched-mode power supplies (SMPS), uninterruptible power supplies (UPS), HVAC fan/blower control, ceiling fans and pumps, LED lighting ballasts, and industrial drives that require high-resolution PWM and ADC feedback in a compact footprint. When designing with this part, choose the 'LF' variant (2.0 V to 5.5 V) for USB or battery-powered operation, or the standard PIC18F2431 (4.2 V to 5.5 V) for fixed 5 V industrial rails. Provide a clean VDD decoupling network (10 µF + 100 nF), respect the exposed-pad (EP) thermal/ground connection, and verify that the chosen oscillator mode and PLL configuration stay within the 40 MHz maximum operating frequency. This page synthesizes distributor pricing, drop-in same-family alternatives (PIC18LF2331-I/MM, PIC18F2431-I/MM), parametric comparison, and practical design notes not found in the bare datasheet, giving procurement and engineering teams an actionable single-source reference.

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PIC18LF2431-I/SO - 8-Bit 40MHz 16KB Flash MCU | Microchip
PIC18LF2431-I/SO

PIC18LF2431-I/SO - 8-Bit 40MHz 16KB Flash MCU | Microchip

The Microchip PIC18LF2431-I/SO is an 8-bit CMOS flash-based microcontroller from the PIC18 family, operating at up to 40 MHz (10 MIPS) and integrating 16 KB of program Flash, 768 bytes of RAM, and 256 bytes of EEPROM in a 28-pin SOIC package. The 'LF' prefix denotes the low-voltage variant that operates across 2.0V to 5.5V, making it well suited to battery-powered designs where the standard PIC18F2431 (4.2V-5.5V) cannot reach. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, integrating a CPU, RAM, non-volatile program memory, peripherals, and I/O on one die. 8-bit MCUs sit at the entry level of the microcontroller taxonomy - between fixed-function logic ICs and 32-bit Cortex-M microcontrollers - and remain dominant in cost-sensitive, deterministic control applications such as motor control, sensor interfaces, and appliance electronics. The PIC18 family in particular is known for its 77 single-word instruction set, 16-bit instructions, and on-chip peripherals like the enhanced Capture/Compare/PWM (ECCP) module that this part uses for power-conversion and motor-control loops. The PIC18LF2431's headline features are the integrated 14-bit Enhanced Power Control PWM (with up to 6 PWM outputs), a 10-bit A/D converter with up to 9 channels, nanoWatt technology for power-managed idle/sleep modes, and an enhanced USART. The ECCP module provides hardware dead-band control, auto-shutdown, and complementary outputs - features that simplify half-bridge and full-bridge driver designs without software overhead. Architecturally, the device uses a 16-bit instruction word with Harvard busing, an 8-bit data path, and a hardware multiplier (8x8 single-cycle). The 'LF' low-voltage silicon supports an extended VDD range down to 2.0V; this is the principal parametric difference from the PIC18F2431, which requires 4.2V minimum. Both parts share the same 28-SOIC pinout, allowing a one-line BOM swap when a design needs to migrate between the two voltage windows. Typical applications include sensorless BLDC motor control (the integrated 14-bit PWM is purpose-built for this), switch-mode power supply (SMPS) digital control loops, industrial fan/pump controllers, and battery-powered sensor signal-conditioning front-ends. Industrial-grade (-40C to +85C) operation is preserved through the 'I' suffix in the part number. Designers should note that the 28-SOIC variant is the right choice when 22 I/O pins suffice; the PIC18LF2431 family is also available in 40-pin PDIP and 44-pin TQFP packages if more I/O are needed. The nanoWatt modes (Idle, Sleep, and Timer1/RTCC oscillator) reduce quiescent current below 1 uA in typical Sleep conditions, which is the primary lever for extending battery life in portable designs. This page synthesizes distributor pricing, drop-in package alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC18LF2431-I/SP - 8-Bit 40MHz 16KB Flash MCU | Microchip
PIC18LF2431-I/SP

PIC18LF2431-I/SP - 8-Bit 40MHz 16KB Flash MCU | Microchip

The Microchip Technology PIC18LF2431-I/SP is an 8-bit PIC18 microcontroller with 16KB (8K x 16) of Flash program memory, 768 bytes of RAM, and 256 bytes of EEPROM, operating at up to 40 MHz from a 2.0 V to 5.5 V supply in a 28-pin SPDIP package. It belongs to the PIC18F2431/4331 family of enhanced flash microcontrollers featuring nanoWatt technology, 10-bit A/D conversion, and high-performance PWM peripherals aimed at motor and power-control applications. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O on one die. Within the broader power-management and embedded-control taxonomy, the PIC18LF2431 sits in the 8-bit RISC MCU class (8-bit MCU -> microcontroller -> embedded processor -> semiconductor). The LF variant specifically targets low-voltage (2.0 V to 5.5 V) operation, making it compatible with both 3.3 V and 5 V rails found in industrial and consumer designs. Key features include 22 I/O pins, two 8-bit timers and three 16-bit timers, a 10-bit A/D converter with up to 5 analog inputs, two capture/compare/PWM modules, two comparators, a USART, and an MSSP (SPI/I2C). The nanoWatt power-managed modes provide idle, sleep, and ultra-low-power operation, suiting battery-powered and energy-conscious applications. The high-performance PWM module supports center-aligned and complementary outputs for driving three-phase motor stages. Architecturally, the device is built on an enhanced Harvard RISC core with a 16-bit instruction word and 8-bit data path, allowing single-cycle execution for most instructions at 40 MHz (10 MIPS). The integrated 10-bit ADC and configurable PWM make it a strong fit for closed-loop motor control, switch-mode power supply (SMPS) feedback, and other real-time embedded applications. Typical applications include brushless DC (BLDC) and permanent-magnet synchronous motor (PMSM) control, uninterruptible power supplies, induction cooking, fan and pump controllers, and LED lighting power-conversion stages. Its 28-pin SPDIP footprint suits through-hole prototyping and industrial modules where robust mechanical connections are required. When designing with this device, ensure decoupling capacitors are placed close to VDD/VSS pairs and that the MCLR reset line is pulled high through a 10 kohm resistor for reliable startup. For noise-sensitive analog readings, dedicate an AVSS/AVDD pair and avoid routing PWM signals adjacent to the ADC inputs. This page synthesizes distributor pricing, drop-in alternatives drawn from Microchip's PIC18 family, and practical design notes not found in the manufacturer datasheet alone.

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PIC18LF2431T-I/ML - 8-Bit 40MHz PIC MCU 16KB Flash 28-QFN | Microchip
PIC18LF2431T-I/ML

PIC18LF2431T-I/ML - 8-Bit 40MHz PIC MCU 16KB Flash 28-QFN | Microchip

The Microchip Technology PIC18LF2431T-I/ML is an 8-bit PIC18F-family microcontroller IC running at up to 40MHz, integrating 16KB (8K x 16) of FLASH program memory, 768 bytes of SRAM and 256 bytes of EEPROM in a 28-pin QFN (6x6mm) package. The "LF" prefix denotes the low-voltage F variant (2.0V-3.3V core operation), the "T" suffix indicates tape-and-reel packaging, and the "I" temperature grade spans -40C to +85C industrial. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, integrating a CPU core, non-volatile program memory (FLASH/ROM), volatile data memory (RAM), EEPROM for user data, and a rich set of on-chip peripherals. MCUs sit within the broader hierarchy of: microcontroller -> embedded processor -> semiconductor IC -> integrated circuit. PIC microcontrollers from Microchip use a Harvard-architecture RISC core, distinguishing them from von-Neumann CISC designs and making PIC MCUs popular for deterministic real-time control with predictable interrupt latency. The PIC18LF2431 belongs to Microchip's PIC18F2331/2431/4331/4431 family, which adds dedicated peripherals targeted at motor-control and power-conversion applications: a Power Control PWM module with up to 8 PWM channels, a 10-bit ADC with up to 9 input channels, a quadrature encoder interface (QEI) for rotor position sensing, and a 16-bit Capture/Compare/PWM module. These dedicated hardware blocks differentiate this family from generic PIC18F MCUs and enable closed-loop BLDC, PMSM and AC-induction motor control without external DSP chips. Communication interfaces include I2C, SPI and UART/USART, enabling the device to serve as a peripheral controller in larger systems or as a standalone control node with sensor and actuator I/O. The wide operating voltage range (typically 2.0V to 3.6V for the LF variant) and 40MHz clock make the part suitable for battery-powered and industrial 3.3V systems. Typical applications include sensored and sensorless BLDC/PMSM motor drives (fans, pumps, drones, e-bikes), small appliance control (mixers, vacuum cleaners, washing machines), HVAC fan and damper actuators, three-phase PFC and inverter stages, and general-purpose 8-bit embedded control with PWM-heavy I/O. The dedicated QEI and Power Control PWM blocks make it particularly attractive when BLDC commutation must be done in hardware rather than software. When designing with this device, allocate PCB area for the QFN exposed thermal pad (EP) and stitch its via array to the ground plane for thermal dissipation and low-impedance analog references. Use Microchip's MPLAB X IDE with the XC8 compiler and MPLAB ICD 5 in-circuit debugger for development; the same ICD 5 supports PIC, AVR and SAM devices, allowing a single debug probe across heterogeneous designs. This page synthesizes distributor stock, parametric drop-in alternatives from the same PIC18 family, and practical PCB layout notes not found in the manufacturer datasheet.

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PIC18LF2431T-I/SO - 8-bit 40MHz MCU 16KB Flash 28-SOIC | Microchip
PIC18LF2431T-I/SO

PIC18LF2431T-I/SO - 8-bit 40MHz MCU 16KB Flash 28-SOIC | Microchip

The Microchip PIC18LF2431T-I/SO is a low-voltage 8-bit PIC18 microcontroller built on a RISC architecture, offering 40 MHz (10 MIPS) performance, 16 KB of Flash program memory and 768 bytes of SRAM in a 28-pin SOIC package. The "LF" prefix indicates the wide 2.0V to 5.5V VDD operating range required for low-power (F) designs, while the "T" suffix denotes Tape & Reel packaging and the "I" temperature grade covers the industrial -40C to +85C range. An 8-bit PIC microcontroller is a single-chip computer integrating a CPU core, Flash program memory, RAM, EEPROM, peripherals and I/O on one die. The PIC18 family extends Microchip's baseline 8-bit portfolio with a 16-bit instruction word, hardware multiply, C-friendly architecture and a 10 MIPS CPU, positioning it between entry-level PIC16 devices and the 16-bit dsPIC/PIC24 line. The PIC18LF2431 in particular is designed for cost-sensitive motor-control and power-conversion applications because it integrates a dedicated 14-bit Power Control PWM module with dedicated time-base and duty-cycle registers, plus a 10-bit ADC and analog comparators. Key features of the PIC18LF2431T-I/SO include 16 KB (8K x 16) of self-programmable Flash, 768 bytes of SRAM, 256 bytes of EEPROM, a 10-bit ADC with up to 9 channels, two analog comparators, two CCP modules, the motor-control Power Control PWM with up to 6 channels, a master synchronous serial port (MSSP) configurable as SPI or I2C, an Enhanced USART, two 8-bit timers plus three 16-bit timers, a 22-strong digital I/O set, and an internal 31 kHz to 8 MHz oscillator block with PLL support. The integrated 5V tolerant I/O and rich analog front-end reduce external component count in BLDC, brushed DC and PFC designs. Typical applications span consumer and industrial three-phase and single-phase motor control, switched-mode power supplies with power-factor correction, UPS systems, induction heating and digital lighting ballasts. The 28-SOIC package is suitable for hand-soldered prototypes, through-hole adapter boards and cost-optimised production where the 40-pin variants (PIC18F2431-I/P, PIC18F4431-I/P) are not required. When designing with this part, take care that any code developed for the F variant (4.2V-5.5V) is checked for the lower LF voltage window. In-circuit serial programming (ICSP) and the standard 5-wire ICD header can be used without any external reset supervisor thanks to the integrated brown-out and power-on reset blocks. For new designs Microchip recommends migrating to the PIC18F/K-series K22 family where pin-compatible equivalents are available.

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PIC18LF2439-I/SO - 8-bit MCU, 12KB Flash, 40MHz, 28-SOIC | Microchip
PIC18LF2439-I/SO

PIC18LF2439-I/SO - 8-bit MCU, 12KB Flash, 40MHz, 28-SOIC | Microchip

The Microchip Technology PIC18LF2439-I/SO is an 8-bit PIC microcontroller with 12KB Flash program memory, 640 bytes of RAM, and 256 bytes of EEPROM, running at up to 40MHz and housed in a 28-pin SOIC package. It is a member of the PIC18F family, offering enhanced flash memory architecture and 21 digital I/O pins for embedded designs. A PIC18 microcontroller is an 8-bit RISC device built on Harvard architecture that separates program and data memory for faster instruction throughput. Within the broader taxonomy, PIC18 belongs to the 8-bit microcontroller -> microcontroller -> embedded processor -> semiconductor hierarchy. The 'LF' prefix denotes low-voltage operation (typically 2.0V to 3.3V) suitable for battery-powered and portable designs, while the 'I' suffix indicates the industrial operating temperature grade (-40C to +85C). Key features of the PIC18LF2439 include an enhanced flash memory cell supporting 100k erase/write cycles typical, an internal 8x8 hardware multiplier, an enhanced CCP module, multiple timer modules, a 10-bit ADC, and on-chip oscillator options. The 21 I/O pins support digital I/O, analog input, and peripheral functions including SPI, I2C, and USART, enabling flexible interfacing with sensors, actuators, and external memory. The device uses a 16-bit instruction word with an 8-bit data path, executes most instructions in a single cycle, and supports linear program memory addressing up to 2MB. Its nanopower features include low-power sleep modes, an ultra-low-power watchdog timer, and an oscillator fail trap for mission-critical firmware reliability. Typical applications include motor control (the PIC18F2439/4439 family was designed with power conversion peripherals), industrial automation controllers, low-power sensor nodes, white goods and HVAC user interfaces, and battery-powered instrumentation. The 28-SOIC package provides easy hand-soldering and breadboard-friendly prototyping while still being compatible with automated SMT lines. When designing with this part, ensure the firmware uses the configuration bits correctly for the chosen oscillator source, and place decoupling capacitors within 5mm of the VDD/VSS pairs to minimize digital switching noise. Code-compatible migration paths within the PIC18 family simplify field upgrades. This page synthesizes distributor pricing, pin-compatible alternatives drawn from the Microchip PIC18 family, and practical design notes not collected in the manufacturer datasheet.

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PIC18LF2439-I/SP - 8-bit 40MHz MCU, 12KB Flash, 28-SPDIP
PIC18LF2439-I/SP

PIC18LF2439-I/SP - 8-bit 40MHz MCU, 12KB Flash, 28-SPDIP

The Microchip Technology PIC18LF2439-I/SP is an 8-bit PIC18 microcontroller built around a RISC architecture running at up to 40 MHz, integrated with 12 KB of Flash program memory (6K x 16 words), 640 bytes of SRAM, and 256 bytes of EEPROM, all housed in a 28-pin SPDIP (Skinny Plastic DIP) through-hole package. The part operates across 2.0 V to 5.5 V supply rails with the LF (low-voltage/F-series) silicon, supporting 2.5 V / 3.3 V / 5 V designs and exposing up to 21 general-purpose I/O pins, including motor-control peripherals such as a power-control PWM module and a 14-bit-resolution motion-feedback channel typical of the PIC18F2439/4439 family. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, working RAM, data EEPROM, and peripheral IP such as timers, capture/compare/PWM channels, ADC, and communication controllers. PIC18F-family MCUs sit in the middle of Microchip's 8-bit hierarchy - above PIC10/PIC12/PIC16 baseline parts in code density and peripheral richness, below the PIC24/dsPIC and PIC32 16-/32-bit families in raw performance. They target cost-sensitive, deterministic, low-power embedded designs where an 8-bit instruction set and Harvard bus keep firmware development simple and toolchain license fees at zero. Key features of the PIC18LF2439-I/SP include 8 MIPS peak throughput at 40 MHz, 10-bit ADC, three timer modules, two capture/compare/PWM modules optimized for switched-mode and motor control, an Enhanced USART, an I2C/SPI master/slave port, and a 10-bit PWM with complementary outputs for driving half-bridges. Hardware math acceleration (8x8 hardware multiply in one cycle) and a vectored interrupt controller with 17 sources reduce firmware complexity for closed-loop applications such as brushless DC (BLDC) and switched-reluctance motor (SRM) drives. The PIC18LF2439 uses a 16-bit instruction word with a 32 KB linear code space - of which 12 KB is implemented in this die - and a 16-level hardware stack with software-pushable return addresses. The Harvard bus architecture decouples program fetch from data access, and the 8-bit data path keeps arithmetic unit area and power dissipation minimal. The "LF" prefix denotes the wide-range F-variant silicon (2.0-5.5 V), distinguishing it from non-LF members that require 4.2-5.5 V. Typical applications for the PIC18LF2439-I/SP include 3-phase BLDC motor commutation, sensorless BLDC pumps and fans, switched-reluctance drives, low-end servo control, and ceiling-fan / appliance variable-frequency drives. The 28-SPDIP package suits through-hole manufacturing, hobbyist prototypes, and harsh-environment industrial boards where leaded parts survive thermal and vibration stress better than leadless QFN packages. The PIC18F2439/4439 family is one of Microchip's classic 8-bit motor-control families; engineers who design firmware on this die typically use the MPLAB XC8 toolchain, MPLAB Code Configurator (MCC), and the application note AN1079 (sensorless BLDC with back-EMF). When designing with this part, take care to respect the absolute maximum VDD of 7.0 V and to clamp motor back-EMF events that can ride on the supply rail. Brown-out-reset (BOR) and the configurable low-voltage-detect (LVD) thresholds must be enabled during the configuration-word programming step - leaving BOR disabled can result in corrupted EEPROM during supply dips. Always program the CONFIG registers with the values from the latest Microchip datasheet before loading application firmware. This page synthesizes distributor pricing (as of 2026-09-28), drop-in same-package alternatives, and practical design notes not consolidated in the manufacturer datasheet.

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PIC18LF2439T-I/SO - 8-Bit 40MHz 12KB Flash MCU | Microchip
PIC18LF2439T-I/SO

PIC18LF2439T-I/SO - 8-Bit 40MHz 12KB Flash MCU | Microchip

The Microchip Technology PIC18LF2439T-I/SO is an 8-bit PIC18F-family microcontroller (MCU) operating at up to 40 MHz, integrating 12 KB of FLASH program memory (6K x 16 words), 640 bytes of SRAM, and 256 bytes of EEPROM in a 28-pin SOIC (7.50 mm / 0.295") wide-body package. As the LF variant of the PIC18F2439, it is designed for low-voltage operation while preserving the PIC18 enhanced instruction set and the integrated motor-control PWM peripherals that distinguish the PIC18F2439 sub-family. An 8-bit microcontroller is a single-chip computer whose ALU, registers, and data bus are 8 bits wide, executing one byte per instruction cycle. Within the broader semiconductor taxonomy it belongs to the microcontroller class (MCU), which itself sits under microcontrollers and processors (MPU) and ultimately under digital semiconductors. The PIC18F family specifically targets applications requiring deterministic real-time control, mid-range code density, and rich on-chip peripherals, occupying the middle ground between baseline PIC10/12/16 parts and the 16-bit dsPIC/PIC24 families. Key features of the PIC18LF2439T-I/SO include a 40 MHz maximum oscillator (10 MIPS instruction throughput), 21 digital I/O pins, 8-channel 10-bit ADC, two USART modules, and dedicated motor-control PWM with complementary outputs and programmable dead time. The LF suffix indicates a wide VDD operating range typically spanning 2.0 V to 5.5 V, making it suitable for battery-powered motor control. Tape-and-reel ('T') packaging supports high-volume SMT assembly, and the industrial '-I' temperature grade covers -40 C to +85 C operation. The architecture combines a 16-bit instruction word with an 8-bit data path and a hardware multiply, giving C-compiler efficiency close to 16-bit parts. The integrated motor-control PWM module (six channels with complementary outputs and dead-band control) eliminates the need for an external PWM controller, while the 10-bit ADC with up to 8 input channels enables closed-loop current and voltage sensing. Typical applications include BLDC and PMSM motor drives, sensored or sensorless fan and pump controllers, small appliance inverters, HVAC damper and valve actuators, and low-voltage DC motor control boards. Its wide VDD range also supports USB-free tethered designs and 3.3 V system rails. When designing with this MCU, allocate the analog and digital supply pins (AVDD/AVSS) correctly and bypass them with 100 nF capacitors placed within 3 mm of the pins. Configure the motor-control PWM dead-time registers in firmware rather than relying on hardware defaults to prevent shoot-through in the inverter stage. This page synthesizes distributor pricing, same-family Microchip drop-in alternatives, and practical motor-control design notes not found in the manufacturer datasheet itself.

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PIC18LF2450-I/ML - 8-Bit 48MHz 16KB Flash USB MCU | Microchip
PIC18LF2450-I/ML

PIC18LF2450-I/ML - 8-Bit 48MHz 16KB Flash USB MCU | Microchip

The Microchip Technology PIC18LF2450-I/ML is a low-power 8-bit PIC18 microcontroller with integrated USB 2.0 Full-Speed peripheral, 16 KB of Flash program memory, 768 bytes of RAM, and 256 bytes of EEPROM, delivered in a 28-pin QFN (6x6 mm) package with exposed thermal pad. It operates from 2.0V to 5.5V (LF variant), runs the PIC18 instruction set at up to 48 MHz (12 MIPS), and provides 23 general-purpose I/O pins plus a 10-channel 10-bit ADC. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, a CPU core, program and data memory, and a set of on-chip peripherals such as timers, ADC, communication ports, and (in this case) a USB device controller. The PIC18 family is Microchip's high-performance 8-bit line that adds C-friendly architectural extensions, a 16-bit instruction word, hardware multiplier, and linear program memory up to 2 MB. The LF prefix denotes the extended low-voltage process that allows operation down to 2.0V, which is critical for battery-powered and energy-harvesting designs. Key features include hardware USB 2.0 Full-Speed (12 Mbps) device/OTG support with on-chip transceiver, 16 KB self-programmable Flash, 768 B SRAM, 256 B EEPROM, 10-bit ADC with 10 channels, two analog comparators, two CCP modules, one Enhanced USART, one MSSP (SPI/I2C), and four timer modules. The 28-QFN package reduces PCB footprint by approximately 60% versus a 28-SOIC footprint while exposing a thermal pad that lowers theta-JA and improves high-current I/O performance. Architecturally, the part uses a Harvard cache architecture with separate program and data buses, a 32-level hardware stack, and an 8x8 hardware multiply that accelerates 16-bit math in a single cycle. The integrated USB SIE handles NRZI encoding, bit stuffing, and CRC5/CRC16 in hardware, eliminating external PHY chips for low-speed and full-speed USB. Typical applications include USB HID peripherals (keyboards, mice, gamepads), USB-to-UART bridges, low-voltage sensor nodes, industrial data loggers, and consumer electronics that need a low-pin-count USB device interface. The LF voltage range (2.0-5.5V) makes the part a strong fit for single-cell Li-ion powered devices as well as 3.3V and 5V industrial buses. Design consideration: the QFN package requires a via-array thermal pad soldered to a copper pour for the datasheet-specified thermal performance. Programming/debug is supported natively by Microchip's MPLAB X IDE, MPLAB XC8 compiler, and PICkit or ICD tools. This page synthesizes verified distributor pricing, same-family drop-in alternatives in the same 28-QFN footprint, and practical design notes not consolidated on the manufacturer datasheet.

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PIC18LF2450-I/SP - 8-bit 48MHz USB MCU 16KB Flash | Microchip
PIC18LF2450-I/SP

PIC18LF2450-I/SP - 8-bit 48MHz USB MCU 16KB Flash | Microchip

The Microchip Technology PIC18LF2450-I/SP is an 8-bit PIC18 microcontroller IC operating at up to 48MHz (12 MIPS), integrating 16KB (8K x 16) of Enhanced Flash program memory and 768 bytes of SRAM in a 28-pin SPDIP through-hole package. It is part of the PIC18F2450 family, designed for compact, single-chip Full-Speed USB 2.0 (12 Mbit/s) applications where on-board USB connectivity eliminates the need for an external transceiver IC. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), working memory (RAM), and programmable peripherals (I/O, timers, ADC, communication interfaces) into one IC. The PIC18LF2450 belongs to the PIC18 8-bit RISC family -> Microchip 8-bit MCU -> microcontroller -> embedded controller hierarchy, optimized for low-cost, low-power embedded designs with USB connectivity. The 'LF' prefix designates the low-voltage (2.0V-5.5V) variant, enabling battery-powered and 3.3V system designs without level shifters. Key features include 23 general-purpose I/O pins, a 10-bit ADC with up to 10 channels, two 8-bit and three 16-bit timers, a Full-Speed USB 2.0 device peripheral (12 Mbit/s), one USART, one MSSP (SPI/I2C), nanoWatt Technology power management, and a 10 MHz internal oscillator. The Enhanced Flash memory supports self-programming and field firmware upgrades directly via the USB port - a defining capability for USB-embedded products. The PIC18LF2450 architecture uses a 16-bit instruction word with an 8-bit data path, Harvard memory architecture, and a hardware multiplier, delivering 12 MIPS at 48MHz. The integrated SIE (Serial Interface Engine) handles USB protocol automatically, freeing the CPU from bit-banging. Compared to discrete USB implementations, this single-chip approach reduces BOM cost, PCB area, and firmware complexity for low-speed USB HID, CDC, and custom-class devices. Typical applications include USB Human Interface Devices (HID mice, keyboards, game controllers), USB-to-UART bridge dongles, CDC virtual COM port devices, USB flash drive emulators, embedded data loggers, low-cost instrumentation, and industrial sensor interfaces. The 23 I/O and 10 ADC channels support multi-signal acquisition designs. Design consideration: the SPDIP package (28-pin, 0.1 inch pitch) simplifies hand-prototyping and breadboarding but requires through-hole PCB manufacturing; for volume SMT production, select the SOIC-28 (PIC18LF2450-I/SO) or QFN-28 (PIC18LF2450-I/ML) variants. The USB D+/D- pins require 27-ohm series resistors and a 1.5 kohm pull-up on D- for Full-Speed device enumeration. This page synthesizes distributor pricing, pin-compatible drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC18LF2455-I/SO - 8-bit USB MCU, 24KB Flash, 28-SOIC | Microchip
PIC18LF2455-I/SO

PIC18LF2455-I/SO - 8-bit USB MCU, 24KB Flash, 28-SOIC | Microchip

The Microchip Technology PIC18LF2455-I/SO is a low-voltage 8-bit PIC18 microcontroller featuring 24KB (12K x 16) of Flash program memory, 2048 bytes of RAM, and 256 bytes of EEPROM, integrated with a Full-Speed USB 2.0 transceiver in a 28-pin SOIC package. It operates up to 48 MHz from a 2.0V to 5.5V supply, making it the LF variant of the PIC18F2455 family designed for battery-powered and low-voltage applications. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, non-volatile program memory, and peripherals. The PIC18 family belongs to Microchip's enhanced Harvard-architecture 8-bit MCU line (PIC MCU -> 8-bit microcontroller -> microcontroller -> semiconductor IC), offering higher performance than baseline PIC16 parts through a 16-bit instruction word and a hardware multiplier. The "LF" prefix indicates an extended low-voltage operating range, distinguishing it from the standard PIC18F2455 (which targets 4.2V-5.5V nominal). Key features include Full-Speed USB 2.0 (12 Mbit/s) with on-chip transceiver, three serial ports (FS-USB, I²C, SPI up to 10 Mbit/s, and EUSART with LIN capability), nanoWatt power management for sleep currents below 1 µA, 10-bit ADC up to 13 channels, and Capture/Compare/PWM modules. The 28-SOIC package provides a through-hole-replacement-friendly surface-mount footprint with 0.3-inch row spacing, suitable for hand-soldering and standard 28-pin DIP development boards via adapters. Internally, the PIC18LF2455 uses a modified Harvard architecture with separate program Flash and data RAM buses, a 16-bit instruction set, and a hardware 8x8 multiplier that delivers ~10 MIPS at 48 MHz. The on-chip USB SIE handles Full-Speed USB signaling, frame generation, and endpoint management without external components, reducing BOM cost for HID, CDC, and vendor-class USB applications. Typical applications include low-voltage USB peripherals (mouse, keyboard, custom HID devices), battery-powered data loggers with USB charging, industrial sensor nodes with LIN bus, and consumer electronics requiring embedded USB. The 2V minimum VDD makes it suitable for single-cell Li-ion or two-AA-cell designs. When designing with this part, note that the LF grade requires careful attention to the VDD range - operation below 4.2V disables some USB transceiver parameters, and Flash programming voltage must be within the specified range. Use MPLAB X IDE with XC8 compiler and MPLAB SNAP or PICkit programmers for development. This page synthesizes distributor pricing, same-family drop-in alternatives (PIC18F2455-I/SO, PIC18LF2550-I/SO), and practical design notes not found in the manufacturer datasheet alone.

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PIC18LF2455-I/SP - 8-bit MCU 48MHz 24KB Flash FS-USB SPDIP-28
PIC18LF2455-I/SP

PIC18LF2455-I/SP - 8-bit MCU 48MHz 24KB Flash FS-USB SPDIP-28

The Microchip Technology PIC18LF2455-I/SP is an 8-bit PIC18 family microcontroller featuring an integrated Full-Speed USB 2.0 transceiver, 24 KB of Flash program memory, 2048 bytes of RAM, and a 48 MHz internal oscillator, all housed in a 28-pin SPDIP (SPDIP-28 / /SP) through-hole package. It operates from 2.0 V to 5.5 V and is the "LF" low-voltage variant of the PIC18F2455, optimized for battery-friendly designs while retaining the same peripheral set. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, Flash program memory, RAM, EEPROM, and peripherals on one die. The PIC18 family uses an enhanced RISC architecture with 16-bit instructions and 8-bit data paths, positioned between PIC16 mid-range parts and PIC32 32-bit parts in Microchip's portfolio. Microcontrollers sit below microprocessors in the compute hierarchy, providing deterministic, low-power embedded control for appliances, sensors, and USB peripherals. Key specifications include 48 MHz maximum CPU clock (12 MIPS), 24 KB Flash (12K x 16 words), 2048 bytes SRAM, 256 bytes EEPROM, 16-bit digital I/O, 10-channel 10-bit ADC, two analog comparators, one Enhanced USART, one MSSP (I2C/SPI), a Full-Speed USB 2.0 SIE (12 Mbit/s), and 5 PWM/CCP/ECCP channels. NanoWatt power management offers idle, sleep, and ultra-low-power wake features. Internal oscillator accuracy is typically within +/-2% across voltage and temperature. The architecture combines a Harvard bus with on-chip hardware multiply, allowing single-cycle math operations on 8-bit data. The integrated USB transceiver eliminates external PHY/clock components; firmware implements the USB stack via the Microchip USB framework, supporting HID, CDC, MSD, and custom classes. The device is industrial-grade (-40C to +85C, "I" suffix) and is a popular choice for legacy and hobby-grade USB peripherals. Typical applications include low-cost USB HID peripherals (keyboards, mice, game controllers), USB-to-UART bridges, CDC virtual COM ports, sensor data loggers, educational development boards (such as PICDEM FSUSB), and industrial HMI panels. The wide 2.0-5.5 V supply range simplifies integration into both 3.3 V and 5 V systems without level shifters. When designing with this part, ensure USB DP/DM trace impedance matches 90 ohm differential and that the VUSB pin is tied to the internal 3.3 V regulator output or a clean external 3.3 V rail. Firmware must drive the UCREGEN and UTRDIS bits correctly and provide adequate bulk capacitance on VUSB. This page synthesizes verified distributor pricing, same-brand drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC18LF2455T-I/SO - 48MHz 24KB Flash USB MCU 28-SOIC | Microchip
PIC18LF2455T-I/SO

PIC18LF2455T-I/SO - 48MHz 24KB Flash USB MCU 28-SOIC | Microchip

The Microchip Technology PIC18LF2455T-I/SO is a low-power 8-bit CMOS flash microcontroller based on the PIC18 enhanced RISC architecture, featuring 24KB of flash program memory, 2048 bytes of SRAM, and an integrated Full-Speed USB 2.0 transceiver, housed in a 28-pin SOIC package (7.50 mm / 0.295" width) supplied on Tape & Reel. A PIC18 microcontroller is an 8-bit Harvard-architecture MCU from Microchip's PIC family that combines a rich peripheral set (USB, I2C, SPI, USART, ADC, PWM) with very low power nanoWatt technology. The PIC18 LF series (Low-Voltage/Frequency) operates across 2.0V to 5.5V and supports full-speed operation up to 48 MHz internal clock (12 MIPS throughput), making it a workhorse for cost-sensitive embedded designs that need USB connectivity. Key features of the PIC18LF2455T-I/SO include a 48 MHz maximum operating frequency, 24KB (12K x 16) flash program memory, 256 bytes of EEPROM data memory, 2 KB of SRAM, a 10-bit ADC with up to 13 channels, two 8-bit and three 16-bit timers, a Full-Speed USB 2.0 (12 Mbit/s) transceiver, MSSP (SPI / I2C), EUSART (LIN-capable), nanoWatt power management with multiple idle/sleep modes, and an industrial -40C to +85C operating range. The device uses a modified Harvard architecture with separate program and data buses, a hardware multiplier (8x8 in one cycle), and Microchip's nanoWatt Technology dynamic power switching. The integrated SIE (Serial Interface Engine) handles USB protocol framing and CRC in hardware, allowing the CPU to focus on application code rather than USB stack overhead. Typical applications include USB HID peripherals (keyboards, mice, custom input devices), USB-to-UART bridge dongles, low-cost data loggers with USB mass storage, sensor interface boards with USB diagnostic ports, industrial control nodes requiring firmware updates over USB, and educational/development boards for embedded USB learning. When designing with this part, ensure that the USB D+/D- traces are routed as a 90 ohm differential pair, that VDDA/VUSB decoupling uses both bulk and high-frequency ceramics, and that the VUSB pin is properly bypassed with a 0.47uF capacitor per the datasheet. This page synthesizes XAIPART distributor pricing, validated drop-in alternatives from Microchip's PIC18 family, and practical design notes not consolidated in the manufacturer datasheet.

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