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PIC18LF25K40T-I/MV - 32KB Flash 8-Bit XLP MCU 28-UQFN | Microchip
PIC18LF25K40T-I/MV

PIC18LF25K40T-I/MV - 32KB Flash 8-Bit XLP MCU 28-UQFN | Microchip

The Microchip Technology PIC18LF25K40T-I/MV is an 8-bit PIC microcontroller from the PIC18F "K40" family featuring eXtreme Low-Power (XLP) technology, 32KB Flash program memory, 2KB SRAM, and 256B EEPROM, housed in a 28-pin UQFN (4x4 mm) package with exposed pad. It operates at up to 64 MHz internal clock, integrates a 10-bit ADC with Computation (ADCC) supporting Capacitive Voltage Divider (CVD) for advanced touch sensing, and supports a 1.8V-3.6V supply range suited for battery-powered designs. What is an 8-bit microcontroller? An 8-bit MCU is a small computer-on-a-chip that processes data 8 bits at a time. The PIC18 family sits within the broader hierarchy of microcontroller -> embedded controller -> semiconductor, and within Microchip's portfolio it occupies the mid-range tier between baseline PIC10/12/16 and high-performance PIC24/dsPIC33 devices. The "K40" sub-family adds Core Independent Peripherals (CIPs) - CWG, WWDT, CRC/Scan, NCO, SMT, ZCD and PWM - that operate without CPU intervention, freeing the core for application code. Key features include 25 I/O pins with peripheral pin select (PPS), four 16-bit timers, two USART, two SPI, two I2C, one 5-bit DAC, one 8-bit DAC and an integrated temperature indicator. The ADCC automates signal averaging, oversampling, and threshold comparisons for sensor conditioning. Two comparators with selectable rail-to-rail inputs complement the analog chain. The device supports in-circuit debugging via MPLAB ICD/Snap and ICSP programming. Architecturally, the PIC18LF25K40 uses a 14-bit wide instruction set with hardware multiplier, 31-level stack, and linear memory map. The XLP sleep current of roughly 50 nA (per datasheet IDD sleep spec, exact figure [DATA_NEEDED: XLP sleep current nA]) and 1.8V minimum VDD make it ideal for coin-cell and energy-harvesting systems. Typical applications include capacitive touch user interfaces, IoT sensor nodes, battery-powered handheld instruments, consumer white goods, and low-power wireless sensor hubs. The CVD peripheral enables waterproof touch buttons and sliders that operate through glass or plastic overlays. When designing with this device, place a 100 nF decoupling capacitor within 3 mm of each VDD/VSS pair and tie the exposed pad (EP) to a solid ground plane for thermal dissipation. Program the CONFIG registers using MPLAB X IDE and MCC to set oscillator, watchdog and code-protect options before code generation. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC18LF25K40T-I/SO - 32KB Flash XLP MCU 28-SOIC | Microchip
PIC18LF25K40T-I/SO

PIC18LF25K40T-I/SO - 32KB Flash XLP MCU 28-SOIC | Microchip

The Microchip Technology PIC18LF25K40T-I/SO is a low-power 8-bit PIC microcontroller built on the enhanced mid-range core with 32 KB Flash program memory, 2 KB SRAM, and 256 B EEPROM, packaged in a 28-pin wide-body SOIC (7.50 mm) and qualified to the -40C to +85C industrial temperature range. It operates up to 64 MHz (16 MIPS) from a 1.8V-3.6V supply as the 'LF' variant, integrating Core Independent Peripherals such as CWG, WWDT, CRC/Memory Scan, Hardware CVD, Zero-Cross Detect and Peripheral Pin Select (PPS) for flexible pin mapping. According to the Microchip PIC18F25K40 family datasheet, the device also exposes 25 I/O pins, a 10-bit ADC with Computation, multiple UART/SPI/I2C, and the nanoWatt XLP power-saving feature set. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O on one die. PIC18 devices sit in Microchip's 8-bit 'PIC' family hierarchy: PIC18F -> PIC18 'LF' (low-voltage) -> PIC18 K-series -> 28-pin '25K40' variant. They occupy the 'general purpose, ultra-low-power' tier of the embedded market, bridging between legacy 8-bit PIC16 designs and the higher-pin-count PIC18F 'K40/K42/K80' series. Key features include 32 KB self-programmable Flash, 2 KB SRAM, 256 B data EEPROM, an internal 64 MHz oscillator, four 16-bit timers, two CCP modules, two UART, two SPI, two I2C, an 11-channel 10-bit ADC with computation, a 5-bit DAC, and nanoWatt XLP sleep currents below 50 nA typical. The 'T' suffix denotes Tape & Reel; the 'SO' suffix denotes the 28-pin 0.300" SOIC package; 'I' is the -40C to +85C industrial grade. Technical depth: the K-series uses a 16-bit instruction word PIC18 core with hardware multiply, a 31-level stack, and PPS that lets each peripheral be mapped to multiple physical pins. The 10-bit ADC with computation supports hardware averaging and threshold comparison, offloading DSP-like tasks from the CPU. The integrated CWG (Complementary Waveform Generator) drives MOSFET half-bridges without software timing. Typical applications include LoRa/sensor node edge controllers, battery-powered IoT nodes, home appliance user interfaces, motor control companion MCUs, USB-CDC sensor bridges (with PIC18F version for 5V), and industrial sensor conditioning. The wide 1.8V-3.6V range suits 2xAA/coin-cell powered designs where the 'LF' variant offers the lowest active current draw. Design consideration: select the 'F' variant (PIC18F25K40) for 5V-tolerant operation and the 'LF' variant (this part) for low-voltage battery operation; verify each peripheral's remapping on PPS before committing pin assignments. The 28-SOIC footprint is pin-compatible across the PIC18F/LF25K40 family and PIC18F/LF25K22, easing migration.

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PIC18LF25K40T-I/SS - 8-Bit XLP MCU, 32KB Flash, 28-SSOP
PIC18LF25K40T-I/SS

PIC18LF25K40T-I/SS - 8-Bit XLP MCU, 32KB Flash, 28-SSOP

The Microchip PIC18LF25K40T-I/SS is an 8-bit PIC18 microcontroller featuring XLP (eXtreme Low-Power) technology, 32KB Flash program memory, 2KB RAM, and 256B EEPROM in a 28-pin SSOP package. This LF-variant part operates across a wide 1.8V to 3.6V supply range and integrates core-independent peripherals including a 10-bit ADC with Computation (ADCC), 5-bit DAC, comparators, PWM, CCP, CWG, HLT, WWDT, SCAN/CRC, and ZCD, while executing up to 64MHz from an internal oscillator. An 8-bit microcontroller is a programmable logic device built around an 8-bit data bus, typically used in cost-sensitive embedded applications where arithmetic performance requirements are modest but peripheral integration, low power, and deterministic I/O matter more than raw compute throughput. Within the broader embedded taxonomy, the PIC18LF25K40 sits in the PIC18 family -> 8-bit MCU category -> microcontroller -> embedded processing -> semiconductor hierarchy. The XLP technology used in this part is Microchip's branding for a set of ultra-low-power architectural features (nanoWatt XLP sleep modes, low-power Run modes, and ultra-low-power wake-up sources) targeting battery-powered designs. Key features distinguishing this part include the ADCC with automated Capacitive Voltage Divider (CVD) support for advanced touch sensing, 36 instructions in the PIC18 instruction set, hardware CRC/SCAN for memory integrity checking, and the Peripheral Pin Select (PPS) module that allows flexible remapping of digital peripherals to I/O pins. The 28-SSOP package is approximately 7.8mm wide with a 0.65mm pitch, well-suited for hand-solderable and reflow-compatible designs. Architecturally, the PIC18LF25K40 uses a Harvard architecture with separate program and data buses, an 8-level hardware stack, and a Multiply-Lookup table accelerator for math-intensive operations. The internal 64MHz oscillator is paired with a 16MHz instruction-cycle rate (4:1 divider), and the integrated high-speed ADC can reach up to 200ksps in 10-bit mode, enabling low-latency sensor sampling. The XLP sleep modes consume down to low nA range currents, depending on configuration - making this MCU well-suited for energy harvesting applications. Typical applications include IoT sensor nodes, battery-powered touch interfaces, industrial control panels with CAN/eight analog inputs, low-power medical wearables, and home automation controllers. The wide 1.8V-3.6V operating range makes the part particularly suitable for direct connection to single-cell lithium or multi-cell alkaline battery stacks without a boost regulator. When designing with this MCU, ensure the ICSP/PGD/PGC programming interface is correctly routed and that the MCLR pin has a proper pull-up to VDD for reliable reset behavior. Note that SSOP packages have moderate thermal dissipation characteristics; for designs running near 64MHz continuously, verify junction temperature under load.

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PIC18LF25K42-E/ML - 32KB Flash XLP 8-bit MCU | Microchip
PIC18LF25K42-E/ML

PIC18LF25K42-E/ML - 32KB Flash XLP 8-bit MCU | Microchip

The Microchip Technology PIC18LF25K42-E/ML is an 8-bit PIC18 microcontroller with 32KB Flash, 2KB SRAM, and 256B EEPROM, housed in a 28-pin QFN (6x6mm) package with an exposed pad. Operating at up to 64MHz, it integrates a 12-bit ADC2, 8-bit DAC, comparators, DMA, vector interrupts, PWM, MAP, and DIA support, while consuming low power via the eXtreme Low Power (XLP) technology. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, and programmable I/O peripherals. The PIC18 family is Microchip's 8-bit RISC architecture, descended from the PIC16 baseline and PIC17 mid-range families, now extended with peripheral-rich variants. PIC microcontrollers belong to the broader category of microcontrollers -> embedded processors -> semiconductors, and dominate cost-sensitive, low-power, and deterministic-control applications. Key features include 32KB self-programmable Flash with Device Information Area (DIA), 2KB data memory, 256B EEPROM, CWG, SMT, CRC/SCAN, and 24-bit Timer0. Its high-performance RISC CPU executes most instructions in one cycle, delivering 16 MIPS at 64MHz. The 12-bit ADC2 with computation supports up to 35 input channels, ideal for sensor-fusion battery-powered designs. The architecture is built on an enhanced PIC Harvard-bus core, with separate program and data paths, and a Peripheral Pin Select (PPS) engine allowing remappable peripheral I/O. Five DMA channels can move data between memory and peripherals without CPU intervention, offloading the core for low-power active and sleep modes. The device operates from 1.8V to 3.6V and is characterized for -40C to +125C industrial temperature ranges. Typical applications include IoT sensor nodes, low-power remote controls, sensor hubs, consumer electronics, and battery-powered instrumentation. Industrial use cases such as HVAC controllers, smart metering, and small appliances also benefit from the rich analog and timer peripherals. When designing, ensure proper decoupling (100 nF + 1uF + bulk) near VDD/VBAT pins, and consider the exposed thermal pad layout for ground stitching. The PPS system requires careful peripheral-to-pin allocation to avoid conflicts when migrating between pin-count variants. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC18LF25K42-E/MV - 8-Bit 64MHz 32KB Flash XLP MCU | Microchip
PIC18LF25K42-E/MV

PIC18LF25K42-E/MV - 8-Bit 64MHz 32KB Flash XLP MCU | Microchip

The Microchip Technology PIC18LF25K42-E/MV is an 8-bit PIC18 K42 family microcontroller (MCU) featuring a 64 MHz CPU core, 32 KB (16K x 16) of Flash program memory, and a 28-pin UQFN (4x4) package with exposed thermal pad. Operating from a low-voltage range (LF denotes the 1.8V-3.6V family), it is designed for ultra-low-power (XLP) embedded applications such as IoT sensor nodes, battery-powered instrumentation, and consumer devices requiring extended battery life. An 8-bit microcontroller is a single-chip computer built around an 8-bit data bus, a CPU, on-chip memory, and programmable peripherals. PIC18 family devices use an enhanced Harvard RISC architecture that delivers near 1 MIPS per MHz while maintaining the PIC legacy of deterministic interrupts. The K42 sub-family specifically adds high-resolution analog (12-bit ADC with computation, 5-bit DAC), Core Independent Peripherals (CIPs) such as CWG/NCO/CLC, and on-chip DMA - features that historically required an external companion IC. Key features of this part include 25 programmable I/O pins, 2 KB of SRAM, 256 B of EEPROM, 10 timers, 2 DMA channels, 2 serial communication interfaces (UART/SPI/I2C selectable), and on-chip PWM/CRC/SRT modules. The XLP architecture delivers nanoWatt sleep currents in deep sleep with retention, enabling multi-year coin-cell operation in metering or remote sensor use cases. The 28-UQFN (4x4) package is one of the smallest footprints in the K42 family, fitting tightly constrained PCB layouts. Typical applications include battery-powered IoT sensor nodes, low-power wireless controllers (sensor front-ends paired with a radio), industrial HMI keypads, low-end appliance control boards, portable medical monitoring devices, and energy harvesting edge nodes. The integrated 12-bit ADC and 5-bit DAC, plus PWM and DMA, allow direct connection to analog sensors and actuators without an external analog front-end. When designing with this device, verify that the I/O count (25) matches your board requirement and reserve the UQFN thermal pad as a ground pour to dissipate switching transients. Pair the MCU with a 1.8-3.6V LDO such as the MCP1700 if your system uses a higher-voltage rail. This page synthesizes distributor pricing, drop-in alternative cross-references, and practical design notes not consolidated in the manufacturer datasheet.

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PIC18LF25K42-E/SO - 32KB Flash 8-bit MCU, 28-SOIC | Microchip
PIC18LF25K42-E/SO

PIC18LF25K42-E/SO - 32KB Flash 8-bit MCU, 28-SOIC | Microchip

The Microchip Technology PIC18LF25K42-E/SO is an 8-bit PIC18 microcontroller with 32 KB Flash program memory, 2 KB SRAM, and a 64 MHz internal oscillator, housed in a 28-pin SOIC package. It belongs to the PIC18 K42 family and operates from 1.8 V to 3.6 V with Microchip's XLP (eXtreme Low Power) technology for ultra-low sleep current. The 'LF' prefix indicates the low-voltage (1.8-3.6 V) supply range, and the '-E' suffix indicates the extended -40C to +125C industrial temperature grade. An 8-bit microcontroller (MCU) is a programmable single-chip computer built around an 8-bit data path, integrating a CPU, non-volatile program memory (Flash), volatile data memory (RAM), timers, communication peripherals (USART, SPI, I2C), and analog peripherals (ADC, DAC, comparators) on one silicon die. The PIC18 family sits inside a hierarchy of microcontroller -> embedded controller -> semiconductor; PIC18F uses 5 V tolerant CMOS while PIC18LF targets low-voltage battery-powered designs where the supply rail cannot exceed 3.6 V. Key differentiating features include a 12-bit ADC with up to 24 channels, a 5-bit DAC, on-chip Direct Memory Access (DMA) for CPU-offloaded data movement, vectored interrupts for fast ISR latency, and a rich set of Core Independent Peripherals (CIPs) such as CLC, CWG, NCO and PWM that run without software. These features let a single PIC18LF25K42 replace multiple discrete components in a compact 28-SOIC footprint. The device's architecture pairs a RISC-like 8-bit core with a 16-bit instruction word and a 31-level hardware stack, while CIPs and the DMA engine offload the CPU. The integrated 64 MHz internal oscillator (+/- 1%) eliminates the external crystal in most designs, reducing BOM cost and PCB area. XLP technology keeps typical sleep currents low, well suited for battery-powered IoT sensor nodes. Typical applications include low-power IoT sensor nodes, consumer appliance control (white goods, coffee machines, air purifiers), industrial sensor interfaces, USB-CDC and small HMI panels, and battery-driven metering. Designers choose the LF variant whenever the system rail stays at or below 3.3 V; for 5 V rails the PIC18F25K42 (without LF) is recommended. When designing, ensure that VDD decoupling capacitors (100 nF + 1 uF) are placed within 3 mm of the VDD pin and that the MCLR pull-up is correctly handled in in-circuit serial programming (ICSP). The LF's 3.6 V absolute maximum must be respected; transients above this can permanently damage the part. Use the DMA controller with care when changing channel priorities at runtime.

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PIC18LF25K42-E/SP - 8-bit 64MHz 32KB Flash XLP MCU | Microchip
PIC18LF25K42-E/SP

PIC18LF25K42-E/SP - 8-bit 64MHz 32KB Flash XLP MCU | Microchip

The Microchip PIC18LF25K42-E/SP is an 8-bit PIC® XLP™ 18K microcontroller with 32KB Flash, 2KB RAM, and 256B EEPROM, operating up to 64MHz in a 28-pin SPDIP package. The LF variant supports a wide 1.8V to 3.6V supply range with Microchip's eXtreme Low Power (XLP) technology, and the -E temperature grade extends operation to -40°C to +125°C for industrial and extended-environment use. What is a PIC18 microcontroller? PIC18 is Microchip's 8-bit enhanced Harvard RISC architecture - one of the longest-running MCU families in the industry. PIC18F/LF devices pair a small instruction set with rich peripheral integration and have a hypernym hierarchy of microcontroller -> MCU -> embedded controller -> semiconductor. The 'LF' prefix denotes the low-voltage (1.8-3.6V) variant while the 'F' denotes the standard (2.3-5.5V) variant, so PIC18LF25K42 and PIC18F25K42 share the same silicon die and pinout but differ only in operating voltage range. Key differentiating features include 25 direct-driven I/O pins, four 16-bit timers, six PWM channels, a 12-bit ADC2 with up to 35 analog channels, two comparators, two DACs (5-bit and 12-bit), DMA controller, Zero-Cross-Detect (ZCD), complementary waveform generator (CWG), and peripheral pin select (PPS) for flexible signal mapping. Core-independent peripherals such as CLC, CWG, and hardware limit timer (HLT) offload tasks from the CPU. The architecture combines an 8-bit data path with a 16-bit instruction word, supporting MIPS throughput up to 16 MIPS at 64MHz. The instruction set is largely orthogonal with hardware multiply and a hardware stack. Vectored interrupts with peripheral interrupt prioritization reduce latency for time-critical events, while the direct memory access (DMA) controller moves data between peripherals and memory without CPU intervention, ideal for low-power ADC-to-RAM logging and UART-to-Flash buffering. Typical applications include battery-powered IoT sensor nodes, portable medical and consumer devices, industrial sensor hubs, low-power wireless modules, and home appliances where extended battery life and rich peripherals matter. The XLP nanoWatt sleep modes and IDLE/DOZE/PMD (peripheral module disable) features make the part especially suited for energy-harvesting and always-on designs. A key design trade-off: the 28-pin SPDIP footprint favors through-hole prototype and legacy designs but for high-volume SMD production, prefer the SPDIP sister part PIC18LF25K42-E/SO. Designers must configure PPS to map peripheral I/O onto the available pins, and must verify that the application's interrupt and DMA requirements are within the 2KB SRAM budget. This page synthesizes distributor pricing, drop-in PIC18 alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers and buyers a single reference for selection, sourcing, and replacement decisions.

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PIC18LF25K42-E/SS - 8-bit XLP MCU 32KB Flash 28-SSOP | Microchip
PIC18LF25K42-E/SS

PIC18LF25K42-E/SS - 8-bit XLP MCU 32KB Flash 28-SSOP | Microchip

The Microchip Technology PIC18LF25K42-E/SS is an 8-bit PIC microcontroller from the PIC18 K42 family, featuring 32KB of Flash program memory, 2KB of RAM, and 256 bytes of EEPROM in a 28-pin SSOP package. It operates at up to 64 MHz, integrates Core Independent Peripherals (CIPs) including a 12-bit ADC2 with Computation, on-chip Direct Memory Access (DMA), vectored interrupts, and high-resolution analog blocks. The device supports an extended voltage range from 1.8V to 3.6V, making it well-suited for battery-powered designs. What is an 8-bit microcontroller? An 8-bit MCU is a microcontroller that processes data in 8-bit words and is widely deployed in embedded systems that require deterministic, low-power, and cost-effective control. PIC18F K42 family MCUs occupy the mid-range tier of Microchip's PIC portfolio, between baseline PIC10/12/16 devices and 16-bit dsPIC / 32-bit PIC32 parts. Within the family hierarchy, the PIC18LF25K42 is the low-voltage F-variant of the PIC18F25K42, optimized for ultra-low-power XLP operation. Key features include 12-bit ADC2 with up to 35 channels, 8-bit DAC outputs, high-speed comparators with selectable reference, Complementary Waveform Generators (CWG), 10-bit PWM with multiple modes, Configurable Logic Cells (CLC), and Peripheral Pin Select (PPS) for flexible signal routing. The integrated DMA engine enables data movement between peripherals and memory without CPU intervention, offloading routine transfers and improving throughput for communication and sensor-sampling tasks. The 'LF' prefix denotes the low-voltage F-variant of the family, which is engineered for XLP (eXtreme Low Power) operation with sub-uA sleep currents and multiple power-saving modes (Idle, DOZE, Sleep, Deep Sleep, and Peripheral Module Disable). On-chip peripherals are designed to operate autonomously while the CPU is halted, enabling long battery life in IoT edge nodes. Typical applications include low-power IoT sensor nodes, battery-powered medical devices, home automation controllers, automotive body and lighting subsystems, industrial sensor interfaces, and consumer appliance control panels. The 28-SSOP footprint supports hand-solderable prototyping while remaining compatible with high-volume SMT assembly lines. When designing with this device, reserve careful attention to oscillator configuration and PPS mapping: PPS must be locked before code execution proceeds to ensure peripheral signals appear on the expected pins. The E/SS suffix indicates the Extended temperature grade (-40C to +125C) and SSOP-28 package, both documented in the manufacturer datasheet. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC18LF25K42-I/SO - 32KB Flash 8-bit XLP MCU | Microchip
PIC18LF25K42-I/SO

PIC18LF25K42-I/SO - 32KB Flash 8-bit XLP MCU | Microchip

The Microchip Technology PIC18LF25K42-I/SO is a low-power, high-performance 8-bit PIC18 microcontroller featuring 32KB Flash, 2KB SRAM, and 256B EEPROM, housed in a 28-pin SOIC (0.295 inch / 7.50mm width) package. It operates at up to 64MHz with the PIC18 LF (low-voltage) variant rated for 1.8V to 3.6V operation, making it a drop-in member of the PIC18(L)FxxK42 family for energy-constrained designs. A microcontroller (MCU) is an integrated circuit that combines a CPU core, program memory (Flash), data memory (RAM), and a rich set of peripherals on a single die. The PIC18 family is Microchip's mainstream 8-bit RISC architecture, sitting below the PIC24/dsPIC and above the PIC16 in the 8-bit hierarchy. Within Microchip's product taxonomy, PIC18 -> PIC18FxxK42 -> PIC18LF25K42 belongs to the eXtreme Low Power (XLP) family, which targets battery-powered and energy-harvesting applications where nanoWatt sleep currents are critical. The K42 generation also adds a 12-bit ADC with Computation (ADC2) and Direct Memory Access (DMA), capabilities typically reserved for higher-tier MCUs. Key differentiating features include 12-bit ADC2 with Capacitive Voltage Divider (CVD) support for touch sensing, an integrated 5-bit DAC, three op-amps, two comparators, DMA controller, vectored interrupt controller with fixed latency, MAP (Memory Address Partitioning), and DIA (Device Information Area) for unique ID and calibration data. The device also integrates Core Independent Peripherals (CIPs) such as Configurable Logic Cells (CLC), Complementary Waveform Generator (CWG), and Numerically Controlled Oscillator (NCO) that offload tasks from the CPU. The LF silicon uses an enhanced Harvard architecture with a 16-bit instruction word and 8-bit data path, achieving 16 MIPS at 64MHz. The wide array of peripherals and tiny standby currents (as low as nanoamps in deep sleep with RTC running) make this part suitable for IoT sensor nodes, touch user interfaces, and portable medical devices where both analog accuracy and battery life matter. Typical applications include IoT sensor nodes, consumer appliances with touch interfaces, battery-powered medical monitors, automotive body electronics (sensor interfacing), home automation controllers, and low-power wireless sensor hubs. The combination of a 12-bit ADC2 and CIPs enables sophisticated signal conditioning without an external analog front-end. When designing with the PIC18LF25K42-I/SO, observe the LF (low-voltage) silicon's maximum VDD of 3.6V. The 'I' suffix denotes the industrial temperature range of -40C to +85C. Designers familiar with the PIC18F25K42-I/SO can use the LF variant interchangeably when operating from a 3.3V (or below) rail; the LF parts draw lower sleep current but require the regulated supply. This page synthesizes Microchip datasheet specifications, distributor pricing, same-brand drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC18LF25K42-I/SS - 8-bit 64MHz 32KB Flash MCU | Microchip
PIC18LF25K42-I/SS

PIC18LF25K42-I/SS - 8-bit 64MHz 32KB Flash MCU | Microchip

The Microchip Technology PIC18LF25K42-I/SS is an 8-bit RISC microcontroller based on the PIC18 CPU core, operating at up to 64 MHz, housed in a 28-pin SSOP package. It integrates 32 KB of Flash program memory, 2 KB of SRAM, 256 B of EEPROM, and 25 general-purpose I/O lines. The 'LF' suffix designates the low-power (F) variant optimized for 1.8V–3.6V operation with XLP (eXtreme Low Power) technology. The part is part of Microchip's PIC18(L)FxxK42 family featuring a rich set of core independent peripherals (CIPs) including CLC, CCP, PWM, DMA, and a 12-bit ADC with Computation (ADC2) supporting capacitive voltage divider (CVD) for advanced touch sensing. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path that executes one instruction per clock cycle (or per a small number of cycles). PIC18 microcontrollers sit within Microchip's 8-bit product hierarchy: 8-bit MCU → PIC family → PIC18 sub-family → PIC18F/K42 series → specific die. They are widely used in cost-sensitive, low-power embedded applications such as consumer electronics, IoT sensor nodes, home appliances, and motor control where deterministic interrupt latency, peripheral integration, and ultra-low sleep current outweigh raw computational throughput. Key features of the PIC18LF25K42 include up to 64 MHz CPU clock (16 MIPS performance), 12-bit ADC with Computation supporting up to 38 channels, multiple communication peripherals (UART, SPI, I2C), 10-bit DAC, 10 timers, 2 DMA channels, and eXtreme Low Power (XLP) technology with down to nanoWatt sleep currents. Functional Safety (FuSa) capability is included on the F-variant (PIC18F25K42) but the LF variant is targeted at low-power standard applications. The 28-SSOP package provides a compact 0.65 mm pitch surface-mount form factor with 25 usable I/O pins. Architecturally, the PIC18LF25K42 employs an enhanced Harvard architecture with separate program and data buses, allowing simultaneous instruction fetch and operand access. The CWG (Complementary Waveform Generator), NCO (Numerically Controlled Oscillator), and DSM (Data Signal Modulator) peripherals enable sophisticated signal generation with zero CPU intervention, while ADC2 automates touch sensing through hardware-accelerated averaging, oversampling, and threshold detection. Typical applications include battery-powered IoT sensor nodes, consumer electronics with touch-button interfaces, low-energy motor control, home automation, and industrial sensor hubs. The wide operating voltage range (1.8V–3.6V) supports direct connection to Li-ion, 2xAA, or 3.3V regulated rails without external level shifters. When designing with this MCU, ensure the HFINTOSC is calibrated at the chosen frequency to maintain timing accuracy over temperature, and use the DMA controller to offload ADC-to-memory transfers for ultra-low-power operation. Decoupling of VDD/VSS pairs with 100 nF ceramic capacitors placed within 5 mm of the pins is mandatory for ADC accuracy. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC18LF25K42T-I/ML - 32KB Flash 8-bit XLP MCU | Microchip
PIC18LF25K42T-I/ML

PIC18LF25K42T-I/ML - 32KB Flash 8-bit XLP MCU | Microchip

The Microchip Technology PIC18LF25K42T-I/ML is an 8-bit PIC18 RISC microcontroller from the PIC18(L)FxxK42 family, featuring 32KB Flash, 2KB RAM, 256B EEPROM and a 64MHz CPU core in a 28-pin QFN-EP (6x6 mm) package. It delivers 25 I/O pins and operates from 1.8V to 3.6V with eXtreme Low Power (XLP) technology for battery-friendly designs. The integrated Core Independent Peripherals include a 12-bit ADC with Computation, 5-bit DAC, two comparators, DMA, vectored interrupts, PWM, CWG, CLC and HLT modules. An 8-bit microcontroller (MCU) is a small computer on a single integrated circuit containing a CPU, program memory (Flash), data memory (RAM), non-volatile storage (EEPROM) and peripheral interfaces. Within the broader taxonomy, a microcontroller falls under the categories: microcontroller -> embedded controller -> semiconductor -> integrated circuit. The "PIC18" core implements an enhanced Harvard RISC architecture with 16-bit instructions and 8-bit data path, optimized for deterministic interrupt response and C-compiler efficiency. This PIC18LF25K42T-I/ML belongs to the low-power "LF" silicon variant, supporting the lower 1.8V VDD rail versus the standard "F" variant. Key features include 64MHz maximum clock (16 MIPS performance), 32KB self-programmable Flash with program counter self-read, 2KB SRAM, 256B EEPROM, and Microchip's CIPs (Core Independent Peripherals) that offload tasks from the CPU. A built-in 32MHz internal oscillator eliminates external crystals in cost-sensitive designs. The 28-QFN package with 6x6 mm footprint exposes an EP pad (exposed pad) for thermal dissipation, enabling sustained operation across the -40C to +85C industrial temperature range. Architecturally, the PIC18LF25K42 uses an enhanced Harvard bus with separate program Flash and data SRAM buses, 31-level stack hardware, and 256B of non-volatile EEPROM for parameter storage. The PPS (Peripheral Pin Select) module routes digital peripherals to any I/O pin, simplifying PCB routing when relocating UART/SPI/I2C functions across revisions. The DMA controller moves data between peripherals and memory without CPU intervention, reducing active mode duty cycle and saving power. Typical applications include IoT sensor nodes, battery-powered remote controls, low-power wireless accessories, industrial sensor interfaces, white-goods user interfaces, low-cost motor control, and consumer electronics requiring USB or capacitive-touch sensing. The XLP features suit any application where standby current must be minimized to extend battery life. When designing, place a 100nF decoupling capacitor adjacent to each VDD pin and connect the EP thermal pad to a ground copper pour to maintain junction temperature within specifications. PPS reassignments should be locked early in firmware to avoid accidental peripheral re-routing during in-field programming. This page synthesizes distributor pricing, drop-in same-package alternatives, application reference circuits and design notes that go beyond the manufacturer datasheet summary, organized for engineers verifying a sourcing decision.

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PIC18LF25K50-E/ML - 8-Bit XLP MCU, 32KB Flash, 28-QFN | Microchip
PIC18LF25K50-E/ML

PIC18LF25K50-E/ML - 8-Bit XLP MCU, 32KB Flash, 28-QFN | Microchip

The Microchip PIC18LF25K50-E/ML is an 8-bit PIC® XLP™ 18K microcontroller that combines ultra-low-power XLP technology with full-speed USB 2.0 support, running up to 48 MHz from an internal oscillator. It integrates 32 KB of Flash program memory (16K x 16 words), 2 KB of RAM, and 256 bytes of EEPROM in a compact 28-pin QFN (6x6 mm) package with exposed thermal pad. The LF suffix designates the low-voltage F variant that operates across 1.8 V to 3.6 V, making it well suited for single-cell Li-ion or two-cell alkaline battery-powered designs. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), working memory (RAM), non-volatile data storage (EEPROM), and a rich set of peripherals such as timers, ADC, communication interfaces, and I/O pins. The PIC18F/LF family uses an enhanced 8-bit Harvard architecture with a 16-bit instruction word, sitting between classic PIC16 devices and the more powerful dsPIC and PIC32 architectures. The XLP (eXtreme Low Power) branding denotes parts engineered for sleep currents down to the nanoampere range, with fast wake-up times that preserve battery life in duty-cycled applications. Key differentiating features include integrated USB 2.0 full-speed (12 Mbps) with on-chip transceiver and dedicated SIE hardware, eliminating the need for an external USB PHY. The nanoWatt XLP core delivers sleep currents as low as 20 nA with RTCC retained, while active current stays under 7 mA at full 48 MHz. The device provides a 10-bit ADC up to 19 channels, multiple Enhanced USART, MSSP (SPI/IC) peripherals, and a Charge Time Measurement Unit (CTMU) for capacitive touch sensing. The 28-QFN package offers a small 6x6 mm footprint with an exposed pad for thermal performance. This part targets embedded applications that demand USB connectivity, low power, and a small PCB footprint - including USB human-interface devices (HID), portable medical sensors, wireless sensor node controllers, and consumer wearables. The wide 1.8 V to 3.6 V supply range combined with USB OTG/host/function support means a single chip can power both the application logic and the USB interface, simplifying BOM and reducing PCB area versus designs that require a separate USB controller. When designing with the PIC18LF25K50-E/ML, ensure the USB DP/DM traces are routed as a 90 ohm differential pair with matched lengths and that the exposed pad on the QFN package is soldered to a sufficiently large copper pour to meet thermal and electrical grounding requirements. Decouple VDD with a 100 nF ceramic capacitor placed within 2 mm of each supply pin, and provide a 4.7 uF bulk capacitor near the USB VBUS rail. Code development is supported by MPLAB X IDE, XC8 compiler, and Microchip's free USB Framework libraries.

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PIC18LF25K50-E/SP - 8-bit 48MHz 32KB Flash XLP MCU | Microchip
PIC18LF25K50-E/SP

PIC18LF25K50-E/SP - 8-bit 48MHz 32KB Flash XLP MCU | Microchip

The Microchip Technology PIC18LF25K50-E/SP is an 8-bit PIC18 microcontroller from the nanoWatt XLP family, delivering up to 48 MHz CPU performance with 32 KB (16K x 16) of self-read/write Flash and 256 bytes of integrated EEPROM in a 28-pin SPDIP (0.300 inch / 7.62 mm) through-hole package. The device integrates a Universal Serial Bus 2.0 full-speed module with on-chip transceiver, an internal 48 MHz oscillator that is automatically tuned to USB accuracy via Active Clock Tuning from the USB host, an 8x8 hardware multiplier, and Enhanced Capture/Compare/PWM peripherals for mixed-signal embedded designs. A microcontroller (MCU) is a single-chip computer containing a CPU core, program and data memory, peripherals, and I/O on one die, used to execute embedded firmware in everything from USB peripherals to industrial controllers. Within Microchip's taxonomy, the PIC18LF25K50 belongs to the PIC18 8-bit family (Harvard architecture, RISC instruction set), positioned under the PIC® XLP™ nanoWatt extreme-low-power platform that targets battery applications requiring 8-hour standby currents and active draws that can be extended by an order of magnitude compared to standard PIC18 devices. Key features include an internal 48 MHz oscillator tunable from the USB host for jitter-free USB operation, an integrated USB 2.0 full-speed transceiver that eliminates external PHY components, hardware 8x8 multiply, two Enhanced USART modules, MSSP/SPI/I2C peripherals, a 10-bit ADC with up to 14 channels, and nanoWatt XLP power management that delivers a typical sleep current of approximately 20 nA with full RAM retention. The device operates from 1.8 V to 3.6 V and supports an extended industrial temperature grade (-40 °C to +125 °C). The PIC18LF25K50's architecture combines the standard PIC18 instruction set with a 16-bit instruction word and an 8-bit data path, allowing sustained throughput up to 16 MIPS at 48 MHz. Hardware peripherals include up to 25 I/O pins with interrupt-on-change, multiple timers (Timer0/1/2/3), Enhanced CCP, comparators, and CTMU for capacitive touch or mTouch sensing. The integrated Active Clock Tuning from USB Host enables real-time oscillator correction against the USB frame timing reference, removing the need for an external crystal in many USB applications. Common applications include USB HID peripherals such as mice, keyboards, and custom input devices; USB-to-UART bridges; low-power sensor and data loggers; battery-powered IoT endpoints; capacitive touch interfaces; and industrial control nodes. When designing with this MCU, allow at least 4 µF of bulk capacitance near VUSB for USB inrush transients and configure the internal regulator according to whether the application runs from USB VBUS or an external 3.3 V rail. This page synthesizes distributor pricing, drop-in SPDIP alternatives, and practical design notes not found in the manufacturer datasheet, giving procurement and embedded engineers a single-source comparison reference for the PIC18LF25K50-E/SP in 28-pin SPDIP.

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PIC18LF25K50-I/SO - 8-Bit 48MHz XLP MCU 32KB Flash | Microchip
PIC18LF25K50-I/SO

PIC18LF25K50-I/SO - 8-Bit 48MHz XLP MCU 32KB Flash | Microchip

The Microchip Technology PIC18LF25K50-I/SO is an 8-bit PIC18 microcontroller with 32KB Flash, 48MHz internal oscillator, and integrated USB 2.0 Full-Speed transceiver, housed in a 28-pin SOIC (7.50mm/0.295" width) package. The "LF" prefix denotes the low-power F-variant core, qualified for 1.8V-3.6V operation and featuring Microchip's eXtreme Low Power (XLP) technology. The "I" suffix indicates the industrial operating temperature range of -40C to +85C, and "/SO" designates the 28-SOIC surface-mount package. A PIC (Peripheral Interface Controller) microcontroller is a Harvard-architecture RISC processor family from Microchip Technology that integrates a CPU core, Flash program memory, RAM, EEPROM, and configurable peripherals onto a single die. PIC microcontrollers occupy the same role in 8-bit embedded systems as 32-bit ARM Cortex-M MCUs do for higher-performance applications - they handle system control, sensor I/O, and human-machine interface tasks where cost, simplicity, and low power are critical. PIC18 is the high-performance 16-bit instruction word sub-family with C-optimized architecture, sitting above PIC10/12/16 and below dsPIC and PIC32 in Microchip's lineup. Key specifications of the PIC18LF25K50-I/SO include 32KB (16K x 16 words) of self-read/write Flash, 2KB RAM, 256 bytes EEPROM, 25 channels of 10-bit ADC, an Enhanced Capture Compare PWM (ECCP) module with up to 4 outputs, an internal 48MHz oscillator with USB-grade accuracy tunable via Active Clock Tuning from the USB host, and a hardware 8x8 multiplier. The integrated Full-Speed USB 2.0 module eliminates the need for an external USB PHY, and the integrated Temperature Indicator aids thermal management. The 28-SOIC package is the most popular through-hole-friendly surface-mount option, supporting hand prototyping and rework. Typical applications include USB HID peripherals (keyboards, mice, custom input devices), USB-to-UART bridges, low-power sensor nodes, battery-powered data loggers, and consumer USB charging controllers. The wide operating voltage range (1.8V-3.6V) makes the part suitable for single-cell Li-Ion and two-cell alkaline battery packs, where sleep currents below 1uA extend battery life into the year range for periodic-sampling applications. When designing with this part, ensure the internal 48MHz oscillator is calibrated for USB operation via the Active Clock Tuning feature - the USB specification mandates +/- 0.25% clock accuracy, which the internal oscillator alone cannot guarantee. For multi-rail designs, the LF (low-voltage F) core allows direct connection to coin-cell or single Li-Ion cells without external LDO. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC18LF25K50-I/SS - 8-Bit 48MHz 32KB Flash USB MCU | Microchip
PIC18LF25K50-I/SS

PIC18LF25K50-I/SS - 8-Bit 48MHz 32KB Flash USB MCU | Microchip

The Microchip Technology PIC18LF25K50-I/SS is an 8-bit PIC18 microcontroller with USB 2.0 full-speed capability, 32KB of Flash program memory, and an internal 48MHz oscillator, housed in a 28-pin SSOP (SS) package. It belongs to the PIC18 K50 family and delivers up to 16 MIPS performance with a 200ns instruction cycle, while integrating nanoWatt XLP extreme low-power technology for battery-sensitive applications. An 8-bit microcontroller (MCU) is a single-chip computer with an 8-bit data bus that executes instructions from on-chip program memory; within the hierarchy, it sits under microcontroller -> embedded processor -> semiconductor device. The PIC18 family uses a modified Harvard RISC architecture with separate program and data buses, and the K50 sub-family adds a built-in USB 2.0 transceiver, eliminating the external crystal typically required for USB clocking. Key features include 32KB self-read/write Flash, 2KB RAM, 256 bytes of EEPROM, an internal 48MHz oscillator with Active Clock Tuning from the USB host, an 8x8 hardware multiplier, and 25 I/O pins. The integrated USB module is USB-IF certified and supports control, interrupt, bulk, and isochronous transfers. Power-managed modes include Run, Idle, Sleep, and multiple low-power Sleep variants drawing nanoamp-level currents. The architecture combines a 16-bit instruction word with an 8-bit data path, providing C-friendly code density while retaining predictable interrupt latency. The Active Clock Tuning block adjusts the internal oscillator against the USB SOF packet, so the 48MHz USB clock stays within the +/-0.25% required by the USB 2.0 specification without an external crystal. Typical applications include USB HID peripherals (keyboards, mice, custom input devices), USB-to-UART bridges, low-power sensor loggers, battery-powered data acquisition, and consumer electronics with USB connectivity. Its XLP technology makes it suitable for coin-cell or energy-harvesting designs where Sleep current must stay in the nanoamp range. Designers should plan for 5V-tolerant digital inputs on most I/O pins and provide a regulated 1.8V to 3.6V supply for the LF variant. Decoupling requires a 0.1uF ceramic capacitor close to VDD and a 10uF bulk capacitor if the USB bus is the sole power source. The internal oscillator's USB-driven calibration removes the need for an external crystal when USB is present. This page synthesizes distributor pricing, drop-in alternative inventory, and practical design notes that are not found in the manufacturer datasheet alone, including a same-package cross-reference matrix for second-source planning.

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PIC18LF25K50T-I/ML - 8-Bit 48MHz 32KB Flash MCU | Microchip
PIC18LF25K50T-I/ML

PIC18LF25K50T-I/ML - 8-Bit 48MHz 32KB Flash MCU | Microchip

The Microchip PIC18LF25K50T-I/ML is an 8-bit PIC® XLP™ 18K microcontroller running at up to 48 MHz, integrating 32 KB of Flash program memory (16K x 16) with 2 KB of RAM in a 28-pin QFN (6x6 mm) package with exposed pad. The "LF" prefix indicates the low-power F-core variant that operates from 1.8 V to 3.6 V, while the "T" suffix denotes Tape & Reel packaging and "ML" denotes the QFN-28 (6x6) package with industrial temperature range -40C to +85C. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, non-volatile program memory, and peripherals onto one die, designed for embedded control tasks. Within the Microchip taxonomy, the PIC18LF25K50 sits in the PIC18F family (8-bit Harvard architecture) -> PIC® 8-bit MCUs -> microcontrollers (MCU) -> embedded processors -> semiconductors. The LF subfamily specifically targets battery-powered and USB applications where low active current and low sleep current are critical, enabled by the proprietary XLP (eXtreme Low Power) technology platform. Key features include a full-speed USB 2.0 device transceiver with on-chip 3.3V regulator, nanoWatt XLP sleep currents below 100 nA typical, 25 MIPS throughput at 48 MHz, 10-bit ADC up to 300 ksps, multiple Enhanced USART, MSSP (SPI/I2C) peripherals, and 25 channels of 10-bit ADC. The 28-QFN exposed pad provides a low thermal-resistance path (theta_JA approximately 40 C/W) that helps dissipate heat from the internal USB transceiver when supplying 100 mA to a USB port. Architecturally the device uses a 16-bit modified-Harvard instruction word with an 8-bit data path, delivering deterministic interrupt response suitable for USB polling and motor-control loops. The integrated USB module eliminates the need for an external transceiver, saving BOM cost and PCB area in HID, CDC, and custom-USB designs. Typical applications include USB peripherals (HID keyboards, mice, CDC serial adapters, custom HID), battery-powered sensor nodes, low-power IoT end nodes, USB-powered data acquisition, and consumer accessories requiring bus-powered enumeration. The LF voltage range (1.8 V to 3.6 V) also makes it suitable for direct Li-Ion coin-cell or 2xAA battery operation. When designing, ensure the exposed pad on the QFN-28 is soldered to a copper pour of at least 0.5 square inch to meet the thermal and electrical grounding requirements of the USB transceiver. Use MPLAB X IDE with the XC8 compiler and the Microchip USB Framework for stack support. This page synthesizes Microchip PIC18LF25K50 datasheet specifications, current distributor stock and pricing as of 2026-09-28, drop-in and same-package alternatives from Microchip's PIC18 family, and practical design notes not found in a single datasheet page.

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PIC18LF25K50T-I/SO - 8-bit MCU, 32KB Flash, USB, SOIC-28 | Microchip
PIC18LF25K50T-I/SO

PIC18LF25K50T-I/SO - 8-bit MCU, 32KB Flash, USB, SOIC-28 | Microchip

The Microchip Technology PIC18LF25K50T-I/SO is an 8-bit PIC18 microcontroller from the XLP 18K family, featuring 32 KB of Flash program memory, 2 KB of RAM, and integrated full-speed USB 2.0 transceiver in a 28-pin SOIC package. The 'LF' prefix indicates the low-F (LF, 1.8V-3.6V wide VDD) voltage variant, and 'T' indicates Tape and Reel packaging. The part operates at up to 48 MHz internal clock from an internal oscillator, eliminating external crystal cost in many designs. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (RAM), peripherals (timers, ADC, communication), and I/O on one die. The PIC18 family is Microchip's high-performance 8-bit architecture, sitting above the baseline PIC10/12/16 in peripheral integration and code efficiency. Within Microchip's portfolio, PIC18F/LF devices bridge between classic 8-bit PIC MCUs and the higher-end 16-bit dsPIC/PIC24 lines, targeting USB-enabled embedded designs with low power draw. Key features include the integrated USB 2.0 full-speed transceiver (no external PHY required), eXtreme Low Power (XLP) technology with nanoWatt sleep modes for battery-friendly operation, 25 I/O pins, 10-bit ADC up to 9 channels, two USART modules, MSSP for SPI/I2C, and a 16-bit timer with capture/compare. The part supports the standard PIC18 instruction set with hardware multiplier and 8x8 hardware multiply. Typical applications include USB HID peripherals (keyboards, mice, game controllers), USB-to-UART bridge dongles, USB sensor interfaces, low-power IoT endpoints, and battery-powered data loggers. The on-board USB PHY simplifies BOM for CDC/Communications-class devices, while the XLP idle/sleep currents below 1 uA enable months of standby on small coin cells. Design consideration: route the USB D+/D- traces as a 90-ohm differential pair with matching trace lengths, place the VBUS sense resistor close to the IC, and ensure the internal regulator decoupling capacitor on VUSB3V3 is a low-ESR ceramic. Verify that the LF version's 1.8V-3.6V VDD range matches your bus-powered or self-powered design. This page synthesizes distributor pricing, drop-in alternative MPNs, and design considerations not consolidated on any single manufacturer or distributor page, complementing the official Microchip datasheet.

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PIC18LF25K50T-I/SS - 8-bit USB MCU, 32KB Flash, 48MHz | Microchip
PIC18LF25K50T-I/SS

PIC18LF25K50T-I/SS - 8-bit USB MCU, 32KB Flash, 48MHz | Microchip

The Microchip PIC18LF25K50T-I/SS is an 8-bit PIC18 XLP microcontroller integrating a full-speed USB 2.0 transceiver, 32KB self-read/write Flash program memory, 2KB RAM, and 256 bytes of EEPROM. It executes up to 16 MIPS from a 48 MHz internal oscillator that can be trimmed to USB accuracy via Active Clock Tuning from the USB host, all housed in a 28-pin SSOP package with industrial -40C to +85C temperature rating. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, and programmable peripherals around a single die. The PIC18 family is Microchip's 8-bit RISC architecture with an enhanced instruction set including hardware 8x8 multiply; within Microchip's MCU taxonomy it sits at: PIC18F/LF -> PIC18 XLP -> 8-bit MCU -> microcontroller -> semiconductor. The 'LF' prefix denotes the low-voltage (F) Flash family operating down to 1.8V, while XLP (eXtreme Low Power) targets nanoWatt sleep currents below 100 nA typical. Key features include 25-channel 10-bit ADC, two Capture/Compare/PWM (CCP) modules, one Enhanced CCP, two UART, one SPI, one I2C with Master/Slave support, 25 I/O pins, two 8-bit timers plus three 16-bit timers, and an internal 48 MHz oscillator. The integrated USB 2.0 Full-Speed transceiver eliminates the external 1.5 kohm pull-up resistor and clock crystal typical of legacy PIC MCUs. The PIC18LF25K50 architecture uses a Harvard RISC core with separate program and data buses, a 31-level hardware stack, and self-programming Flash. The Active Clock Tuning peripheral calibrates the internal oscillator against the USB host's SOF packets, achieving +/- 0.25% USB clock accuracy without an external crystal - critical for HID, CDC, and vendor-class USB devices. Typical applications include USB HID peripherals (keyboards, mice, custom input devices), USB-to-UART bridges, USB battery chargers, and low-power sensor nodes. The 1.8V minimum supply supports single-cell Li-ion or two-AA battery operation, making it suitable for portable medical, consumer, and IoT designs. Design tip: When using the internal USB transceiver, place a 0.1 uF decoupling capacitor within 5 mm of the VUSB3V3 pin and ensure the D+/D- traces are 90 ohm differential-impedance matched for Full-Speed USB compliance. This page consolidates current distributor pricing, drop-in same-package alternatives, and engineering design notes not found in the manufacturer datasheet alone, providing information gain beyond Microchip's product page.

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PIC18LF25K80-I/MM - 8-bit 64MHz MCU, 32KB Flash, ECAN | Microchip
PIC18LF25K80-I/MM

PIC18LF25K80-I/MM - 8-bit 64MHz MCU, 32KB Flash, ECAN | Microchip

The Microchip Technology PIC18LF25K80-I/MM is an 8-bit PIC18 microcontroller with integrated ECAN and nanoWatt XLP extreme low-power technology, integrating 32 KB of Flash program memory and 3.6 KB of RAM in a 28-pin QFN-S (6x6 mm) package with exposed pad. Operating from 1.8 V to 5.5 V (LF variant, low-voltage/extended-range), the device executes instructions at up to 64 MHz (16 MIPS) and ships with an integrated 12-bit ADC with CTMU (Charge Time Measurement Unit) for capacitive touch and accurate time-of-flight measurement. A microcontroller (MCU) is a single-chip computer that integrates a CPU, program and data memory, peripheral I/O, and timers into one package. The PIC18 family is built on an enhanced 8-bit Harvard RISC architecture widely used in automotive, industrial, and consumer embedded designs. XLP (eXtreme Low Power) technology is Microchip's branding for sub-uA sleep currents, making LF (low-voltage F) parts popular in battery-powered and energy-harvesting applications. Key features include one ECAN module (CAN 2.0B active) for in-vehicle networking, an integrated 12-bit ADC with up to 8 analog channels, a CTMU peripheral for touch sensing and temperature conversion, four 16-bit timers/capture/compare modules, two UART, two SPI, and one I2C. The NanoWatt XLP modes drop quiescent current to nanoampere levels, enabling years of operation from a single coin cell. In the architecture, an 8-bit data path feeds 16-bit instructions with a hardware multiplier, and the in-circuit serial programming (ICSP) and in-circuit debug (ICD) interfaces remain accessible on the QFN pins, simplifying prototyping. The dual oscillator block supports crystal, resonator, or internal HF/LF oscillator with PLL. Typical applications include CAN-based automotive body and chassis modules, building automation sensor nodes, industrial sensor hubs, and low-power IoT edge devices using ECAN as the fieldbus. The wide 1.8-5.5V input range also suits battery-backed metering. The CTMU enables capacitive touch keys and proximity sensing without an external timer IC. When designing with this device, allocate the exposed thermal pad to a continuous copper pour for thermal and electrical grounding. Ensure the ECAN bus transceiver (e.g., MCP2561) is paired with proper bus termination. The 28-QFN footprint rules out legacy through-hole boards; use a 4-layer PCB with a continuous ground plane below the part for EMI control. This page synthesizes datasheet specifications, distributor availability, drop-in compatible PIC MCU alternatives, and practical hardware design notes not assembled on any single OEM page.

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PIC18LF25K80-I/SP - 8-bit 32KB Flash XLP MCU | Microchip
PIC18LF25K80-I/SP

PIC18LF25K80-I/SP - 8-bit 32KB Flash XLP MCU | Microchip

The Microchip Technology PIC18LF25K80-I/SP is a 64 MIPS, 8-bit PIC18 XLP microcontroller with 32 KB Flash, 4 KB RAM and 1 KB EEPROM in a 28-pin SPDIP package, designed for ultra-low-power embedded designs. It operates from 1.8 V to 3.6 V, integrates an ECAN module, a 12-bit ADC with up to 8 channels, a CTMU touch/charge-time module, and supports eXtreme Low Power (XLP) nanoWatt technology with sleep currents as low as 20 nA. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (Flash/RAM/EEPROM) and peripherals. The PIC18LF25K80 belongs to the 8-bit PIC family, which sits inside the broader hierarchy of microcontrollers -> embedded processors -> semiconductor ICs. The "LF" prefix denotes the low-voltage Flash variant, while "18K80" identifies the specific sub-family with CAN, XLP and ADC12 features. Key features include 32 KB (16K × 16) self-programmable Flash, 4 KB SRAM, 1 KB EEPROM, 64 MHz internal oscillator, 36 digital I/O, two MSSP (SPI/I2C), two ECAN, one 12-bit ADC up to 8 channels at 100 ksps, three 16-bit timers, four 8-bit timers and a Charge Time Measurement Unit (CTMU) for capacitive touch or precise time measurement. The instruction set is PIC18 with C-optimised architecture and 16-bit instructions for compact code density. Architecturally the PIC18LF25K80 uses a RISC-style Harvard architecture with 8-bit data path and 16-bit instructions, an integrated 16-level hardware stack, and an enhanced instruction set that includes hardware multiply and direct bit manipulation. The XLP nanoWatt technology provides multiple low-power modes (Run, Idle, Sleep, RTCC) with nanowatt-level standby, and the integrated ECAN module supports CAN 2.0B active at 1 Mbit/s for automotive/industrial networking. Typical applications include CAN-node sensor interfaces, battery-powered metering, industrial automation nodes, capacitive touch user interfaces, HVAC fan/valve controllers, automotive body ECUs, and medical handheld devices where low standby current extends battery life from months to years. The 1.8 V minimum VDD also makes it suitable for direct operation from single-cell lithium or two AA cells. When designing with this device, ensure that decoupling (100 nF + 10 µF) is placed within 5 mm of VDD pins, and that MCLR is tied through a 10 kΩ pull-up to VDD to allow reliable in-circuit serial programming (ICSP). For capacitive touch applications, allocate at least two adjacent pins per channel and use the CTMU with a guard ring to improve noise immunity. This page synthesises distributor stock, parametric alternatives and XLP design guidance not found in the manufacturer datasheet, helping engineers select a drop-in replacement or compare polarity/grade variants quickly.

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PIC18LF25K80T-I/MM - 8-Bit XLP 32KB Flash MCU | Microchip | 28-QFN
PIC18LF25K80T-I/MM

PIC18LF25K80T-I/MM - 8-Bit XLP 32KB Flash MCU | Microchip | 28-QFN

The Microchip Technology PIC18LF25K80T-I/MM is an 8-bit PIC microcontroller in the PIC18F K80 family, featuring 32 KB of Flash program memory (16K x 16), 3.6 KB of RAM, and 1 KB of EEPROM, integrated ECAN™ (CAN 2.0B active) controller, and nanoWatt XLP extreme-low-power technology. Housed in a 28-pin QFN-S package with exposed thermal pad (6x6 mm body), it operates from 1.8 V to 3.6 V with a 64 MHz internal oscillator (16 MIPS) and an industrial temperature range of -40 °C to +85 °C. What is an 8-bit PIC microcontroller? A PIC microcontroller is a Harvard-architecture RISC processor from Microchip Technology built around a single accumulator-based ALU and on-chip Flash program memory; in the system hierarchy it sits below 16-bit PIC24/dsPIC devices and 32-bit ARM Cortex-M MCUs, and the 18 K family in particular is aimed at applications that need more peripherals than the 16 F core but stay inside an 8-bit cost and power envelope. The K80 sub-family adds an integrated ECAN peripheral and a 12-bit A/D converter, making it the smallest PIC18 with full automotive-class CAN. Key features include a 12-bit ADC with up to 8 input channels, multiple Enhanced Capture/Compare/PWM (ECCP) modules, a Charge Time Measurement Unit (CTMU) for capacitive touch and accurate timing, and dedicated LIN/IrDA®/UART/USART serial interfaces. The on-chip ECAN engine supports CAN 2.0B active with mask and filter, and the nanoWatt XLP Idle/Run/Sleep modes draw typical currents in the nanoampere region at 1.8 V. The 28-QFN package exposes a thermal pad (EP) that must be soldered to the PCB ground pour for thermal and electrical performance. Typical applications include automotive body and comfort modules, building automation controllers, HVAC sensor nodes, elevator control boards, industrial sensor hubs, lighting control systems, low-power remote sensor platforms, and any battery-powered or LIN-bus connected node where the integrated ECAN removes the need for an external transceiver controller. With its 1.8 V minimum operating voltage, the part is also usable in two-AA-cell designs. When designing with the PIC18LF25K80T-I/MM, reserve at least 4 vias under the exposed pad (EP) tied to a clean ground plane, keep the VCAP pin bypassed with a 10 µF ceramic capacitor, and ensure the LF-prefix voltage range of 1.8 V to 3.6 V is respected when migrating from F-variants (F parts run 1.8 V to 5.5 V). Use MPLAB X IDE with the XC8 compiler and PICkit/SNAP to develop and debug firmware. This page synthesizes distributor pricing, drop-in alternatives, parametric comparison, and practical design notes not found in the manufacturer datasheet alone.

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PIC18LF25K80T-I/SS - 8-bit XLP MCU, 32KB Flash, ECAN, SSOP-28 | Microchip
PIC18LF25K80T-I/SS

PIC18LF25K80T-I/SS - 8-bit XLP MCU, 32KB Flash, ECAN, SSOP-28 | Microchip

The Microchip Technology PIC18LF25K80T-I/SS is an 8-bit PIC18 enhanced-flash microcontroller with 32KB (16K x 16) of program Flash, 3.6KB RAM, and 1KB EEPROM, housed in a 28-pin SSOP (5.30 mm / 0.209 inch) package and qualified for the industrial -40C to +85C range. The "LF" prefix designates the low-voltage variant operating from 1.8V to 3.6V, while the "F" counterpart PIC18F25K80 extends the range to 5.5V; both share the same die and pinout. The part integrates a 64 MHz internal oscillator block (16 MIPS instruction throughput) and the nanoWatt XLP extreme-low-power technology with sub-uA sleep currents for battery-friendly designs. According to the Microchip PIC18F66K80 family datasheet, the device also features an integrated ECAN module, two EUSART, SPI, and I2C peripherals, seven timers, a 12-bit ADC, and the Charge Time Measurement Unit (CTMU) for capacitive touch and precise time measurement. A PIC18 microcontroller is a member of Microchip's 8-bit Harvard-architecture RISC MCU family, which sits at the entry level of the broader microcontroller taxonomy (8-bit MCU -> microcontroller -> embedded controller -> semiconductor). The PIC18 core executes one instruction every four clock cycles and supports linear memory addressing up to 2MB, which made it a workhorse for cost-sensitive CAN-connected and low-power embedded systems in the 2010s. The "K80" sub-family specifically targets ECAN-based node designs and battery-powered metering where the nanoWatt XLP sleep modes drop quiescent current to single-digit microamps. Key features that differentiate the PIC18LF25K80T-I/SS include 24 general-purpose I/O pins, hardware ECAN 2.0B with masking and time-stamping, three 16-bit timers plus three 8-bit timers, a 12-channel 12-bit ADC with acquisition timer, dual analog comparators, and a 5-bit DAC reference. The I-grade part is rated for industrial temperature operation (-40C to +85C), and the SSOP-28 footprint measures 5.30 mm body width with 0.65 mm pitch for compact PCB layouts. Tape-and-reel ("T") packaging supports high-volume SMT assembly. Typical applications include HVAC building-control nodes, elevator-control panels, industrial sensor nodes with CAN backbone, automotive body and cluster modules (within the industrial-grade qualification limits), and battery-backed metering or telemetry endpoints. For designs that later require 5V tolerance, the pin-compatible PIC18F25K80 family member offers an identical footprint at higher VIN, enabling upward migration without PCB rework. When designing with the PIC18LF25K80T-I/SS, keep in mind the 1.8V to 3.6V supply constraint; migrating to the PIC18F25K80 family is required for any 5V rail. Place the 1 uF VDD decoupling capacitor within 5 mm of the supply pin and follow Microchip's ECAN bus-layout guidelines for 1 Mbps operation.

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PIC18LF25K83-E/ML - 32KB Flash 8-bit MCU with CAN | Microchip
PIC18LF25K83-E/ML

PIC18LF25K83-E/ML - 32KB Flash 8-bit MCU with CAN | Microchip

The Microchip Technology PIC18LF25K83-E/ML is a low-power, high-performance 8-bit PIC18 microcontroller featuring 32KB Flash program memory, 2KB SRAM, and 1KB EEPROM, integrated CAN 2.0B peripheral, and a 12-bit ADC with Computation (ADC2) for advanced touch sensing and signal conditioning. Housed in a 28-pin QFN (6x6 mm) package, this device runs at up to 64 MHz and targets space-constrained automotive, industrial, and consumer applications requiring robust wired communication. 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 (Flash), volatile data memory (RAM), EEPROM, and multiple peripherals. The PIC18 family belongs to the broader PIC microcontroller hierarchy from Microchip, sitting between baseline PIC10/12/16 devices and the 16-bit PIC24/dsPIC families. The PIC18LF25K83 specifically occupies the XLP (eXtreme Low Power) "LF" tier, optimized for battery-powered and energy-harvesting designs where deep sleep current is critical. Key features of the PIC18LF25K83-E/ML include a 12-bit ADC2 with Capacitive Voltage Divider (CVD) support for noise-immune touch sensing, hardware CAN 2.0B module, two I2C, two SPI, two UART with LIN/DMX/DALI support, and 25-channel 10-bit PWM. The device also integrates a 5-bit DAC, comparators, zero-cross detect, and hardware math accelerator for ADC filtering. The extended temperature -40C to +125C range and AEC-Q100 qualification suitability make this part attractive for automotive body and chassis ECUs. The PIC18LF25K83-E/ML uses a modified Harvard architecture with separate program and data bus paths, achieving single-cycle instruction execution at 64 MHz (15.6 ns instruction cycle). The 32KB self-programmable Flash supports in-application programming via IAP, enabling field firmware updates without external bootloader. A peripheral pin select (PPS) remapping block allows flexible assignment of digital peripherals to physical I/O pins, simplifying PCB layout when adding new functions late in design. Typical applications include CAN node endpoints in automotive body controllers, HVAC and lighting control, industrial sensor hubs with LIN or CAN connectivity, building automation DALI lighting nodes, capacitive touch user interfaces, and battery-powered IoT sensor transmitters. The wide operating voltage range (1.8V to 3.6V for the LF variant) and 9 nA sleep current (RTC mode) extend battery life in remote installations. When designing with this part, allocate sufficient Flash for the application stack plus a robust bootloader (typically 4-8KB) and ensure PPS conflicts are resolved at compile time. Designers migrating from the PIC18F25K83 should note the LF suffix indicates 1.8V-3.6V operation versus the F variant's 2.3V-5.5V range - substitute carefully when migrating. This page synthesizes distributor pricing for the PIC18LF25K83-E/ML, same-family and cross-brand 28-pin QFN drop-in alternatives, and practical design notes not consolidated in the manufacturer datasheet alone.

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PIC18LF25K83-E/SO - 32KB Flash, 8-bit MCU w/ CAN, 28-SOIC | Microchip
PIC18LF25K83-E/SO

PIC18LF25K83-E/SO - 32KB Flash, 8-bit MCU w/ CAN, 28-SOIC | Microchip

The Microchip PIC18LF25K83-E/SO is a 32 KB Flash, 8-bit PIC18 XLP microcontroller with integrated CAN technology, housed in a 28-pin SOIC (0.295", 7.50 mm width) package. It runs up to 64 MHz internal clock, integrates 32 KB Flash, 2 KB SRAM, and 1 KB EEPROM, and features a 12-bit ADC with Computation (ADC2) supporting Capacitive Voltage Divider (CVD) for advanced touch sensing. An 8-bit microcontroller (MCU) is a single-chip computer that executes instructions on 8-bit data widths and is widely used in embedded systems for control-oriented tasks. Within the Microchip taxonomy, the PIC18LF25K83 belongs to the PIC18 "high-performance" 8-bit family, sitting between the legacy PIC16 baseline family and the 16-bit dsPIC/PIC24 families. The "LF" prefix denotes the low-voltage / low-power (XLP) variant, optimized for battery-powered and energy-harvesting applications. Compared with the PIC18F counterpart (PIC18F25K83), the LF version extends operating voltage down to 1.8 V and trades absolute performance for substantially lower active and sleep current. Key features of the PIC18LF25K83-E/SO include a 12-bit ADC2 with up to 24 channels (depending on package), a CAN 2.0B module with hardware message filtering, multiple Enhanced USART, SPI, and I2C peripherals, a 10-bit PWM with complementary outputs and dead-band control, and an integrated core-independent peripheral set. The device supports up to 64 MHz operation from a 16 MHz internal oscillator with PLL, providing 16 MIPS throughput while consuming roughly a few mA active. Architecturally, the PIC18LF25K83 uses Microchip's enhanced Harvard architecture with separate program Flash and data SRAM buses, a 31-level hardware stack, and interrupt prioritisation. The "K83" generation adds functional-safety support (IEC 61508 / SIL-ready documentation is published for the family), making the part attractive for safety-critical industrial control, white goods, and automotive body applications. Typical applications include CAN-connected sensor nodes, automotive body and lighting controllers, industrial PLC I/O modules, touch-sense human-machine interfaces (HMIs) using CVD, and low-power battery-operated IoT edge nodes. Designers pick the LF variant when 1.8 V-3.6 V operation, deep sleep currents in the nA range, and CAN connectivity are required simultaneously. When designing, allocate a robust decoupling network (100 nF + 1 µF near VDD) and follow Microchip's recommended CVD layout for touch channels. For CAN, add a TJA1050 or MCP2551 transceiver - the on-chip CAN module is a protocol controller only and does not include the physical-layer differential driver. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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