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PIC18LF26J53T-I/ML - 64KB Flash USB MCU, 28-QFN | Microchip
PIC18LF26J53T-I/ML

PIC18LF26J53T-I/ML - 64KB Flash USB MCU, 28-QFN | Microchip

The Microchip PIC18LF26J53T-I/ML is a low-power 8-bit PIC microcontroller from the PIC18LFxxJ53 family, featuring 64 KB of Flash program memory, 4 KB of RAM, and an integrated full-speed USB 2.0 transceiver. Housed in a 28-pin QFN package (ML, 6x6 mm), the device operates from 2.0 V to 2.75 V and delivers up to 12 MIPS throughput. The 'LF' prefix denotes the low-voltage/F-range silicon revision optimized for portable and battery-powered designs, while the 'T' suffix indicates tape-and-reel packaging. What is a PIC18 microcontroller? PIC18 microcontrollers are 8-bit RISC microcontrollers from Microchip built on a Harvard architecture with a modified instruction set. They integrate Flash program memory, RAM, EEPROM, peripheral modules, and in many variants a USB transceiver, all on a single die. In the system hierarchy, a PIC18 sits below 16-bit dsPIC and 32-bit SAM/ARM Cortex-M parts but offers excellent code density, mature tooling, and integrated peripherals at very low cost. Key features of the PIC18LF26J53 include a 12-bit A/D converter with up to 10 channels, multiple serial interfaces (I2C/SPI/UART), an Enhanced USART, a 10-bit DAC reference, internal 31 kHz and 8 MHz oscillators, and up to 22 I/O pins. The integrated USB 2.0 full-speed transceiver with on-chip pull-ups simplifies USB device designs by eliminating external transceivers and reducing BOM cost. The 12 MIPS execution rate supports real-time control loops and USB enumeration without bottlenecks. The architecture combines a 16-bit instruction word with an 8-bit data path, an 8x8 hardware multiplier, a 4-deep FIFO for the A/D converter, and a priority interrupt controller. The internal voltage regulator of the J53 family can be configured for 2.5 V or 3.3 V core operation, and the wide I/O tolerance allows direct interface to 5 V peripherals in mixed-voltage systems when the regulator is properly bypassed. Typical applications include USB peripherals (HID, CDC, MSD), battery-powered sensor hubs, home automation controllers, low-cost data loggers, and small industrial HMI panels where the USB interface is the primary desktop-side connection and on-board peripherals drive actuators and displays. The 28-QFN footprint is also footprint-compatible with several other PIC18F2xJ53 variants, enabling easy migration across the family. When designing with this part, ensure the VUSB pin is connected to the USB VBUS through the internal pull-up configuration (per datasheet section 2.0 'Typical Application Connection'), and place the decoupling capacitor on VCAP/VDDCORE within 5 mm of the pin. A pull-up on MCLR is required if the device is used in production; tying MCLR directly to VDD prevents reliable reset behavior.

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PIC18LF26J53T-I/SO - 8-bit USB MCU 64KB Flash 12 MIPS | Microchip
PIC18LF26J53T-I/SO

PIC18LF26J53T-I/SO - 8-bit USB MCU 64KB Flash 12 MIPS | Microchip

The Microchip Technology PIC18LF26J53T-I/SO is a low-power 8-bit microcontroller from the PIC18 LF J53 family, featuring integrated USB 2.0 full-speed peripheral support and 64KB of Flash program memory in a 28-pin SOIC wide (7.50 mm) package. The device operates up to 48 MHz (12 MIPS instruction throughput) from a 2.0V to 3.6V supply and includes 4KB RAM, 12-bit A/D converter with up to 10 channels, multiple timers, and two USART/SPI/I2C peripherals. The "LF" prefix indicates the low-voltage core variant optimized for eXtreme Low Power (XLP) battery applications, while "T" denotes tape-and-reel packaging and "I" denotes the industrial -40C to +85C temperature range. An 8-bit PIC microcontroller is a Harvard-architecture RISC processor designed for embedded control. PIC MCUs sit within the broader microcontroller category, which itself belongs to the integrated circuits > microcontrollers hierarchy in power-managed embedded systems. The LF sub-family extends the legacy PIC18 line with nanoWatt XLP technology, internal voltage regulation, and ultra-low sleep currents that make these parts attractive for handheld, USB-bus-powered, and energy-harvesting designs. Key features include the integrated USB 2.0 full-speed transceiver and SIE, eliminating external USB PHY cost; 64KB self-programmable Flash with 10K erase cycles; 4KB linear RAM and 256-byte EEPROM; 10-bit or 12-bit A/D with auto-acquisition; mTouch capacitive touch support; and on-chip hardware RTCC for real-time clock backup. The CTMU peripheral enables accurate time and charge measurement for proximity sensing and capacitive buttons. The architecture is built on an enhanced PIC18 pipeline with hardware multiplier, 31-level stack, and C-friendly instruction set. The internal 31 kHz to 8 MHz oscillator block plus 48 MHz USB clock source minimize external components, while two comparators and a reference DAC provide analog signal conditioning. XLP nanoWatt technology delivers typical sleep currents below 100 nA with RTCC enabled. Typical applications include USB HID peripherals such as mice, keyboards, and game controllers, low-power sensor hubs, USB-to-UART bridges, and human-interface devices. The combination of integrated USB, ample RAM for USB endpoint buffers, and XLP sleep modes makes the LF26J53 a frequent choice for tethered battery peripherals and bus-powered IoT edge nodes. When designing with this part, allocate enough Flash for the USB stack and CDC/HID class driver (typically 10-14KB), and follow Microchip's USB PCB layout guidelines including a 90-ohm differential impedance on D+/D- and a common-mode choke near the connector. The 28-SOIC wide footprint is the same as PIC18F/LF2553 and PIC18F/LF25K22, simplifying board upgrades. This page synthesizes distributor pricing, same-family pin-compatible alternatives, and practical USB design notes not found in the standalone Microchip datasheet.

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PIC18LF26K22-E/ML - 64KB Flash, 64MHz 8-bit MCU | Microchip
PIC18LF26K22-E/ML

PIC18LF26K22-E/ML - 64KB Flash, 64MHz 8-bit MCU | Microchip

The Microchip Technology PIC18LF26K22-E/ML is an 8-bit high-performance RISC microcontroller belonging to the PIC18F/LF K22 family, integrating 64KB of Flash program memory and 3968 bytes of SRAM in a 28-pin QFN (ML) package with nanoWatt eXtreme Low-Power (XLP) technology. The core runs at up to 64MHz, delivering up to 16 MIPS while operating from a 1.8V to 3.6V supply, which makes it ideal for battery-powered designs that demand both computational throughput and low quiescent current. A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (Flash), volatile data memory (SRAM), and programmable peripherals into one package. The PIC18 family is Microchip's high-pin-count, high-memory 8-bit line; nanoWatt XLP is the marketing label for the power-management features that allow deep-sleep currents in the sub-microamp range. Within the broader taxonomy, the PIC18LF26K22 occupies the LDO-class low-voltage LF slot of Microchip's 8-bit portfolio, sitting between the legacy PIC16 mid-range parts and the 16-bit PIC24/dsPIC families. Key features include 64KB Flash with self-programmability, 3968 bytes of RAM, 1024 bytes of EEPROM, two Enhanced USART modules, two MSSP (SPI/I2C) ports, an Enhanced Capture/Compare/PWM (ECCP) module, a 10-bit ADC with up to 28 analog channels, and nanoWatt XLP sleep currents as low as 30 nA in deep-sleep mode. The wide operating voltage range of 1.8V to 3.6V lets the part run directly from a single Li-Ion cell or two AA batteries, while peripherals like the RTCC and Ultra-Low-Power Wake-up keep standby consumption measured in nanoamps. Architecturally, the PIC18LF26K22 uses a 16-bit modified Harvard architecture with a hardware multiply and 31-level hardware stack, distinguishing it from the 14-bit PIC16 mid-range parts and giving software developers higher code density per instruction. The 28-pin QFN package exposes the full peripheral set including up to 28 ADC channels through digital I/O reassignment, making the silicon equally suited for sensor aggregation, user I/O, and motor control roles in compact layouts. Typical applications include wearable health and fitness devices, low-power wireless sensor nodes, battery-powered metering, USB-to-UART bridge dongles, and general-purpose consumer/industrial control. The combination of 64KB Flash and nanoWatt XLP makes it a frequent choice for designs that need room for a USB stack, a wireless protocol, or a graphical HMI on a long-life battery. When designing with the E temperature grade, observe the -40C to +125C ambient window and follow the in-circuit serial programming (ICSP) timing diagrams from the Microchip datasheet when a debugger/programmer header is added. For engineering reviews, note that the 'LF' prefix indicates 1.8V-3.6V operation; migrating to the PIC18F26K22 version is the standard upgrade path when a 5V-tolerant 1.8V-5.5V supply rail is needed instead. This XAIPART product page synthesizes live distributor pricing, drop-in alternatives within the PIC18 K22 family, AEO-optimized design notes, and a parametric comparison table that goes beyond the manufacturer datasheet front page to speed up your part-selection decision.

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PIC18LF26K22-E/SO - 64KB Flash 8-bit XLP MCU, 28-SOIC | Microchip
PIC18LF26K22-E/SO

PIC18LF26K22-E/SO - 64KB Flash 8-bit XLP MCU, 28-SOIC | Microchip

The Microchip Technology PIC18LF26K22-E/SO is a 28-pin SOIC, 8-bit PIC18 microcontroller featuring 64KB of Flash program memory, 3968 bytes of RAM, and a maximum CPU clock speed of 40 MHz, designed on the eXtreme Low Power (XLP) nanoWatt architecture. It operates over a supply voltage range of 4.2V to 5.5V, with 34 digital I/O pins, an integrated 10-bit ADC, multiple PWM modules, and standard communication peripherals including UART, SPI, and I2C. A PIC microcontroller (MCU) is a compact programmable processor that integrates CPU, memory, and peripherals on a single silicon die. PIC microcontrollers from Microchip sit at the intersection of 8-bit microcontrollers -> RISC microcontroller -> embedded controller -> semiconductor IC, and have been a foundational building block of embedded systems since the 1990s. They are widely used in applications where deterministic behavior, low power, and a mature toolchain (MPLAB X IDE, XC8 compiler) are valued. Key features of the PIC18LF26K22 family include nanoWatt XLP technology for sleep currents down to the nanoampere range, peripheral flexibility with multiple capture/compare/PWM modules, an enhanced 8/16-bit timer block, and a wide operating temperature range. The 'LF' prefix designates the wide-voltage-range silicon variant, while the 'E' suffix indicates the Extended (industrial) temperature grade of -40C to +125C. The 28-SOIC (SO) package is a JEDEC-standard 300-mil plastic small-outline package suitable for hand-soldering and reflow on conventional PCBs. Typical applications include low-power sensor nodes, battery-operated handheld instruments, industrial control front-ends, automotive body electronics (non-AEC-Q100 grade), USB device interfaces when paired with the PIC18F/K series, and educational/development boards. The on-chip 10-bit ADC and CTMU (Charge Time Measurement Unit) make the device well suited to capacitive touch and analog sensing. When designing with this MCU, ensure decoupling capacitors of 100 nF and 10 uF are placed close to VDD/VSS, that the MCLR pin has a proper pull-up, and that unused I/O are configured as outputs low to minimize current. For migration to smaller packages, the same die is offered in 28-QFN (PIC18LF26K22-E/ML) and 40-PDIP/SPDIP form factors.

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PIC18LF26K22-E/SS - 64KB Flash 8-bit nanoWatt XLP MCU | Microchip
PIC18LF26K22-E/SS

PIC18LF26K22-E/SS - 64KB Flash 8-bit nanoWatt XLP MCU | Microchip

The Microchip PIC18LF26K22-E/SS is a low-power, high-performance 8-bit PIC microcontroller with 64KB Flash, 3,968 bytes of RAM, and a 48 MHz internal oscillator, housed in a 28-pin SSOP package. The LF variant operates from a wide 1.8V to 3.6V supply range and integrates nanoWatt eXtreme Low Power (XLP) technology that drops sleep current to a few tens of nanoamps. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), data memory (RAM), and programmable peripherals on one die. The PIC18 family sits in the 8-bit RISC category of MCUs, which trades raw clock speed for deterministic instruction timing, predictable interrupt latency, and a compact C-friendly instruction set. PIC18 devices are typically chosen over 16-bit and 32-bit parts when BOM cost, code simplicity, and ultra-low sleep current are more important than arithmetic throughput. Within the Microchip portfolio, PIC18 belongs to the larger microcontroller -> embedded MCU -> semiconductor taxonomy. Key features of the PIC18LF26K22-E/SS include 64KB (32K x 16) self-programmable Flash, 256 bytes of EEPROM, a 12-bit ADC with up to 19 channels, two Enhanced USART modules, two MSSP (SPI/I2C) peripherals, and a 5-bit DAC. The device also supports capacitive touch sensing via the mTouch framework and integrates a 16-bit timer/counter with capture/compare. Architecturally the PIC18LF26K22 uses an 8-bit RISC core with hardware multiply, a 16-bit instruction word, and a vectored interrupt controller. The wide operating voltage window (1.8-3.6V) makes it ideal for direct connection to a single-cell Li-ion or 2xAA battery, while the nanoWatt XLP sleep modes extend battery life in intermittently active products. Typical applications include battery-powered sensor nodes, low-cost consumer appliances, touch-interface front panels, industrial control modules, and portable medical devices such as glucose meters or spirometers. The combination of EEPROM, multiple serial interfaces, and rich analog peripherals enables single-chip implementation of many mixed-signal embedded designs. When designing with this part, keep in mind that the "E" suffix denotes the -40C to +125C extended temperature grade and the "LF" prefix denotes the low-voltage core variant. Decoupling the AVDD/AVSS analog rails separately from VDD/VSS reduces ADC noise, and unused I/O pins should be configured as outputs low to minimize sleep current. Designers migrating from the PIC18F26K22 (F = 1.8-5.5V) need to re-validate analog performance, because several analog specs degrade at the LF lower input rail. This page synthesizes distributor pricing, pin-compatible PIC18 alternatives, and practical low-power design notes not found in the bare manufacturer datasheet.

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PIC18LF26K22-I/SO - 64KB Flash 8-bit MCU XLP 28-SOIC | Microchip
PIC18LF26K22-I/SO

PIC18LF26K22-I/SO - 64KB Flash 8-bit MCU XLP 28-SOIC | Microchip

The Microchip Technology PIC18LF26K22-I/SO is a low-power, high-performance 8-bit PIC microcontroller from the PIC18 K22 family with 64KB Flash, 3,968 bytes SRAM and 1,024 bytes EEPROM, housed in a 28-pin SOIC package rated for the industrial -40C to +85C temperature range. The device runs at up to 64 MHz (16 MIPS instruction throughput), integrates a 10-bit ADC up to 17 channels, multiple Enhanced USART, MSSP and CCP/ECCP peripherals, and qualifies for the -LF 1.8V-3.6V voltage variant suited to single-cell Li-Ion designs. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (RAM/EEPROM) and a configurable set of peripherals - ADC, timers, communication interfaces and GPIO - on one piece of silicon. MCUs sit at the lowest tier of the embedded computing hierarchy, below microprocessors (MPU) and far below SoCs, and are the workhorses of embedded designs because they consolidate control logic, I/O and signal conditioning into one programmable part. The PIC18 family is Microchip's 8-bit baseline architecture, and the K22 sub-family specifically targets low-power (nanoWatt XLP) portable and battery applications. Key features include nanoWatt XLP extreme-low-power technology with multiple sleep modes down to sub-microampere leakage, 25 general-purpose I/O pins with interrupt-on-change, two Enhanced USART modules supporting LIN and IrDA, two MSSP ports (I2C/SPI), three CCP plus one ECCP module for PWM/motor control, and a 10-bit ADC with up to 17 channels and automatic acquisition. The -LF voltage variant operates from 1.8V to 3.6V. Architecturally, the PIC18LF26K22 uses a RISC Harvard-style core with a 16-bit instruction word, an 8-bit data path, and a hardware multiplier that simplifies time-critical math versus pure 8-bit accumulator cores. The 64 MHz Fosc derives from an internal 16 MHz HFINTOSC plus a 4x PLL block, allowing firmware to tune CPU speed on the fly via OSCTUNE to trade throughput for current consumption. Typical applications include low-power sensor nodes, handheld instrumentation, USB-to-UART bridges (with a companion MCP2200), small motor control, battery chargers, and industrial control panels that need 5V-tolerant GPIO or XLP sleep profiles. Design consideration: choose the -LF (1.8V-3.3V) variant rather than the -F (1.8V-5.5V) when your design runs from a single Li-Ion or two AA cells; this trade-off costs 5V tolerance but saves tens of microamperes in active run current. This page synthesizes distributor pricing, drop-in same-package alternatives (PIC18LF26K22 family members and PIC18F26K22-I/SO), datasheet-cited electrical parameters, and practical design notes not found in a single distributor listing, giving engineers an AEO-friendly comparison surface for component selection.

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PIC18LF26K22-I/SS - 8-bit XLP MCU, 64KB Flash, 28-SSOP | Microchip
PIC18LF26K22-I/SS

PIC18LF26K22-I/SS - 8-bit XLP MCU, 64KB Flash, 28-SSOP | Microchip

The Microchip PIC18LF26K22-I/SS is an 8-bit PIC18 microcontroller built on the nanoWatt XLP low-power platform, offering 64KB of Flash program memory and 3968 bytes of RAM in a 28-pin SSOP package. It operates across a wide 1.8V to 3.6V supply range with up to 64MHz CPU performance (16 MIPS at 64MHz internal), making it suitable for both battery-powered and line-powered embedded designs. The "LF" prefix designates the low-voltage F-variant with extended nanoWatt XLP features. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O into one package. The PIC18 family uses Microchip's enhanced 8-bit RISC architecture with hardware multiplier and C-friendly design. Within the broader taxonomy, the PIC18LF26K22 sits as: microcontroller -> 8-bit MCU -> PIC18 family -> PIC18 "K22" sub-family -> PIC18LF26K22 (low-voltage, 28-pin, 64KB Flash). It is the foundation of millions of embedded products in consumer, industrial, and automotive-grade (with Q-graded parts) applications. Key differentiating features of the PIC18LF26K22 include the nanoWatt XLP technology with deep-sleep current in the nanoamp range, integrated mTouch capacitive sensing peripherals, two Enhanced USART modules, two MSSP (SPI/I2C) ports, two CCP/ECCP modules, a 12-channel 10-bit ADC, and four 8-bit timers plus five 16-bit timers. The CTMU peripheral enables capacitive touch and time measurement without external components. The on-chip 64MHz internal oscillator reduces BOM by eliminating an external crystal in many designs. Typical applications include low-power battery sensor nodes, USB HID peripherals (when paired with the F-variant's USB module), home appliances, motor-control BLDC/PMSM drivers using ECCP, capacitive touch keypads with mTouch, and industrial IoT edge nodes. The wide operating voltage (1.8V-3.3V typical, 3.6V max) lets a single part cover 2xAA, Li-ion, and 3.3V regulated rails. A key design consideration: at 64MHz and 3.3V the core draws ~10mA (typical), so coin-cell designs must use nanoWatt XLP sleep modes (down to ~20nA). For multi-rail systems, the brown-out reset (BOR) and PWRT timers should be enabled to ensure deterministic startup. The I/SS package is the industrial (-40C to +85C) temperature grade with SSOP-28 footprint.

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PIC18LF26K22T-I/SO - 8-bit XLP MCU 64KB Flash 28-SOIC | Microchip
PIC18LF26K22T-I/SO

PIC18LF26K22T-I/SO - 8-bit XLP MCU 64KB Flash 28-SOIC | Microchip

The Microchip Technology PIC18LF26K22T-I/SO is an 8-bit PIC18 XLP microcontroller with 64KB Flash, 3.9KB RAM, and a 64MHz CPU, housed in a 28-pin SOIC package. It is the LF (low-voltage) variant of the PIC18F26K22 family, supporting operation from 1.8V to 3.6V. The 'T' suffix denotes Tape & Reel packaging, and the 'I' is the industrial temperature grade (-40C to +85C). A microcontroller (MCU) is a single-chip computer containing a CPU, Flash program memory, RAM, and configurable peripherals such as ADC, UART, I2C, SPI, timers, and PWM. PIC18 XLP parts add nanoWatt XLP technology for ultra-low sleep currents below 50 nA typical. Within the broader taxonomy, MCUs sit at the embedded controller level - above 8-bit processors but below application processors and microprocessors. Key features include nanoWatt XLP extreme low-power technology, an integrated 10-bit A/D converter with up to 19 channels, multiple communication peripherals (UART, SPI, I2C), PWM modules, and the standard PIC18 peripheral set. The CPU executes instructions at 64MHz (16 MIPS) thanks to a 4-cycle pipeline, while flexible oscillator options include internal 16MHz HF and 31kHz LF sources. Architecturally, the PIC18LF26K22 uses an enhanced Harvard architecture with separate program and data buses, a 16-bit instruction word, and a rich instruction set. The LF process is optimized for low-voltage operation, which is why the datasheet specifies 1.8V-3.6V (compared to the F variant's 2.3V-5.5V range). Peripherals XLP variants reduce active current below typical PIC18 levels, making them ideal for battery-powered applications. Typical applications include IoT sensor nodes, battery-powered metering devices, low-power remote controls, HVAC thermostats, and portable industrial instruments. Anywhere a coin-cell or two-AA battery must last years, this MCU's XLP features become attractive. When designing with this device, choose the LF variant (1.8V-3.6V) if the system is battery-powered or uses a regulated 3.3V rail; choose the F variant if a 5V rail is available without regulation. The 'T' suffix only affects packaging - the die is identical to the non-T version, so firmware developed on PIC18LF26K22-I/SO ports directly to the T variant. This page synthesizes distributor pricing from DigiKey, Mouser, and LCSC, plus drop-in SOIC alternatives and practical design notes not aggregated on a single manufacturer datasheet page.

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PIC18LF26K40-E/ML - 64KB Flash XLP 8-bit MCU 28-QFN | Microchip
PIC18LF26K40-E/ML

PIC18LF26K40-E/ML - 64KB Flash XLP 8-bit MCU 28-QFN | Microchip

The Microchip PIC18LF26K40-E/ML is an 8-bit PIC18 RISC microcontroller delivering 64KB Flash and 64MHz core speed in a 28-pin QFN (6x6 mm) package with exposed pad. The device supports a wide 1.8V to 3.6V operating voltage range and includes Microchip's eXtreme Low-Power (XLP) technology for battery-friendly applications. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (Flash), data memory (RAM), peripherals, and I/O into one package. PIC18-series MCUs add 16-bit wide instruction paths and hardware multiply to the classic 8-bit PIC architecture, occupying the layer: PIC18 -> PIC microcontroller -> 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. The PIC18LF26K40 sits inside Microchip's mid-density "K40" sub-family, balancing high computational performance with rich Core Independent Peripherals. Key features include 64KB (32K x 16) Flash program memory, 3,584 bytes of RAM, 1KB of EEPROM, an internal 64MHz oscillator, and a 10-bit ADC with Computation (ADCC) that automates Capacitive Voltage Divider (CVD) operations for advanced touch and sensing tasks. The device also integrates Complementary Waveform Generator (CWG), Windowed Watchdog Timer (WWDT), CRC/Memory Scan, Zero-Cross Detect, Peripheral Pin Select (PPS), and up to 25 I/O pins. Five packages (28/40/44-pin) form the PIC18(L)F26K40 family. Typical applications include low-power IoT sensor nodes, consumer appliances with touch interfaces, battery-powered handheld instrumentation, automotive body and HVAC control modules, and industrial control panels. The XLP sleep currents below 50 nA make it especially suitable for energy-harvesting or always-on designs where battery lifetime is critical. When designing with the PIC18LF26K40-E/ML, note that the "-E" suffix denotes the Extended temperature grade (-40C to +125C), while "-I" denotes Industrial (-40C to +85C). The exposed thermal pad on the QFN package must be soldered to a ground copper pour for both thermal dissipation and electrical performance; omitting this typically degrades ADC noise and may exceed datasheet thermal limits. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, including a curated replacement list drawn from Microchip's own FFF (Form-Fit-Function) alternate catalogue.

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PIC18LF26K40-E/MV - 64KB Flash 8-bit MCU, 28-UQFN | Microchip
PIC18LF26K40-E/MV

PIC18LF26K40-E/MV - 64KB Flash 8-bit MCU, 28-UQFN | Microchip

The Microchip Technology PIC18LF26K40-E/MV is an 8-bit PIC® XLP™ microcontroller running up to 64 MHz with 64 KB Flash, 3720 bytes of RAM, and 1 KB data EEPROM, packaged in a 28-pin UQFN (4x4 mm) with exposed pad. It supports an extended operating voltage range down to 1.8 V (LF variant) up to 3.6 V, making it well-suited for battery-powered and energy-harvesting designs. The MCU integrates rich on-chip peripherals including a 10-bit ADC with computation (ADC2), a 5-bit DAC, comparators, PWM, CCP, CWG, HLT, WWDT, CRC/SCAN, ZCD, and Peripheral Pin Select (PPS), plus dual I²C, dual SPI, and dual EUSART interfaces. An 8-bit microcontroller (MCU) is a small computer-on-a-chip that integrates a CPU, program memory (Flash), data memory (RAM/EEPROM), and peripherals on a single die. 8-bit MCUs sit below 16-bit and 32-bit devices in raw compute throughput but win on cost, deterministic interrupt latency, and ultra-low sleep current. PIC18 (8-bit) MCUs from Microchip form the upper end of the 8-bit tier, offering high peripheral integration and XLP (eXtreme Low Power) technology with sleep currents in the nanoamp range for IoT and battery applications. Key differentiating specifications include the 10-bit ADC2 with automatic averaging and threshold comparison, CWG (Complementary Waveform Generator) for hardware dead-band control, 5-bit DAC for analog setpoints, ZCD (Zero-Cross Detect) for AC line control, and CRC/SCAN for memory integrity. Core Independent Peripherals allow hardware state machines to run without waking the CPU, reducing average power dramatically. Typical applications include IoT sensor nodes, industrial sensor conditioning, LED lighting controllers, AC line power control (using ZCD + CWG), battery chargers, and compact consumer appliances that need USB-style connectivity without a USB PHY (via the dual EUSART/SPI bridging). The 28-UQFN 4x4 mm package makes it ideal for space-constrained PCBs. When designing, place a 100 nF decoupling capacitor on each VDD pin and connect the exposed pad (EP) to a solid ground plane for thermal dissipation. The PPS system lets you remap most digital peripherals to almost any I/O, simplifying PCB layout. Use the ADC2 computation mode to offload averaging and threshold detection from the CPU. This page synthesizes XAIPART distributor pricing, drop-in pin-compatible alternatives within the PIC18 LF family, and practical design notes not bundled in the manufacturer datasheet.

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PIC18LF26K40-E/SP - 8-Bit 64MHz XLP MCU 64KB Flash | Microchip
PIC18LF26K40-E/SP

PIC18LF26K40-E/SP - 8-Bit 64MHz XLP MCU 64KB Flash | Microchip

The Microchip Technology PIC18LF26K40-E/SP is an 8-bit RISC microcontroller based on the PIC18 enhanced CPU core, delivering up to 64 MHz of computational performance with 64 KB of Flash program memory in a 28-pin SPDIP (0.300" through-hole) package. It integrates 4 KB of data RAM, 256 bytes of EEPROM, and a rich analog/digital peripheral set including a 10-bit ADC with Computation (ADC2), a 5-bit DAC, comparators, multiple PWM/CCP/CWG channels, HLT, WWDT, CRC/SCAN, and ZCD peripherals that target low-power and functional-safety-oriented designs. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, non-volatile program memory, and peripherals onto one silicon die; the PIC18 architecture sits within Microchip's hierarchy of 8-bit microcontrollers (PIC10/12/16/18) -> RISC MCU -> microcontroller -> embedded processor -> semiconductor. The "LF" prefix denotes the extended low-power (XLP) family, optimized for battery-operated and energy-harvesting designs where quiescent current in nanoampere ranges is mandatory. The device operates from 1.8 V to 3.6 V (LF variant) and supports up to 16 MIPS at 64 MHz. It features Core Independent Peripherals (CIPs) such as the Complementary Waveform Generator (CWG), Windowed Watchdog Timer (WWDT), and Cyclic Redundancy Check with Memory Scan (CRC/SCAN) that offload tasks from the CPU and improve deterministic real-time response. The 10-bit ADC2 includes hardware accumulation, averaging, threshold detection, and automatic channel scanning, reducing firmware overhead for sensor-array applications. Typical applications include IoT sensor nodes, battery-powered instrumentation, home automation controllers, low-power wireless sensor platforms, and consumer appliances. The integrated ZCD, CWG, and analog peripherals make it well suited for SMPS control loops and motor/lighting control where deterministic hardware response is required. Designers should review the device's power-budget calculator and clock-tree configuration in MPLAB X IDE to balance active current, sleep current, and wake-up latency. The 28-pin SPDIP footprint supports breadboard and through-hole prototyping, while surface-mount variants (SOIC/SSOP/QFN/ML) of the same die are available for production reflow assembly. This page synthesizes distributor pricing, drop-in same-family alternatives from Microchip, and practical design notes that supplement - but do not replace - the manufacturer datasheet and the MPLAB XC8 compiler documentation.

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PIC18LF26K40-E/SS - 64KB Flash XLP 8-bit MCU, SSOP-28 | Microchip
PIC18LF26K40-E/SS

PIC18LF26K40-E/SS - 64KB Flash XLP 8-bit MCU, SSOP-28 | Microchip

The Microchip Technology PIC18LF26K40-E/SS is a 28-pin, ultra-low-power (XLP) 8-bit PIC microcontroller built on the enhanced mid-range PIC18 core, integrating 64KB of Flash program memory, 4KB of SRAM, and 256 bytes of EEPROM in a 28-SSOP package. It executes instructions at up to 64 MHz from a 1.8V-3.6V supply, with peripheral-rich integration including a 10-bit ADC with computation (ADC2), a 5-bit DAC, comparators, configurable logic cells (CLC), complementary waveform generator (CWG), windowed watchdog timer (WWDT), CRC/SCAN, zero-cross detect (ZCD), and peripheral pin select (PPS) for flexible signal routing. An 8-bit microcontroller (MCU) is a single-chip processor with an 8-bit data bus width, internal program memory, RAM, and integrated peripherals like ADC, timers, and communication interfaces. Within the MCU taxonomy, the PIC18LF26K40 belongs to the PIC18 family -> 8-bit PIC microcontrollers -> microcontrollers -> microcontrollers and processors -> semiconductor ICs, positioning it for general-purpose embedded control rather than high-performance DSP workloads. Key differentiating features include nanoWatt XLP technology for sub-µA sleep currents that extend battery life, eXtreme Low-Power (XLP) modes with typical <100 nA sleep draw, PPS for remapping digital peripherals to nearly any I/O pin (reducing PCB layout constraints), and Core Independent Peripherals (CIPs) such as CWG and WWDT that operate without CPU intervention. The 'LF' prefix denotes the low-voltage (1.8V-3.6V) variant designed for battery-powered and energy-harvesting systems. Architecturally, the device uses a 16-bit instruction word with an 8-bit data path, hardware multiply, and a vectored interrupt controller supporting prioritized interrupts. The integrated high-frequency oscillator and PLL eliminate external crystals for many timing needs, while the IDLE/DOZE/PMD power-management modes let developers trade peripheral activity against current draw at runtime. Typical applications include IoT sensor nodes, battery-powered remote controls, low-end consumer electronics, industrial sensor interfaces, and automotive body controllers. Designers select this MCU when they need generous Flash/RAM, robust I/O count, and proven low-power PIC18 toolchain support. Design consideration: leverage PPS to remap EUSART/SPI/I2C to any available pin, simplifying PCB routing; always place the ICSPDAT/ICSCLK pins to accessible test points for in-circuit programming and debugging. This page consolidates distributor pricing tiers (as of 2026-09-28), verified drop-in alternatives (same SSOP-28 package), and practical design notes synthesized from Microchip datasheets not commonly seen on distributor listings.

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PIC18LF26K40-I/MV - 64KB Flash 8-Bit XLP MCU | Microchip
PIC18LF26K40-I/MV

PIC18LF26K40-I/MV - 64KB Flash 8-Bit XLP MCU | Microchip

The Microchip Technology PIC18LF26K40-I/MV is an 8-bit PIC18 microcontroller built on the eXtreme Low-Power (XLP) platform, delivering up to 64 MHz operation with 64 KB of Flash program memory, 4 KB of SRAM, and 256 bytes of EEPROM in a compact 28-pin UQFN (MV) package measuring 4x4 mm. A microcontroller is a single-chip computer that integrates a CPU, memory, and programmable I/O peripherals; the PIC18 family is Microchip's 8-bit architecture that combines RISC-like efficiency with rich on-chip peripherals for embedded control. Within that hierarchy, the LF variant denotes the low-voltage core (1.8 V to 3.6 V operation), the K40 generation adds Core Independent Peripherals and 5 V tolerant I/O, and the "26" pin-count signals a 28-pin package option. This positions the LF26K40 as a power-aware general-purpose MCU spanning the PIC18 -> 8-bit MCU -> microcontroller -> embedded IC taxonomy. Key specifications include a 64 MHz internal oscillator (16 MIPS instruction throughput), a 10-bit ADC with up to 24 channels, a 5-bit DAC, complementary waveform generators (CWG), hardware limit timers (HLT), windowed watch-dog timer (WWDT), zero-cross detection (ZCD), CRC/SCAN, and peripheral pin select (PPS) for flexible signal routing. The device operates from 1.8 V to 3.6 V with nanoWatt XLP sleep currents that suit battery-powered designs. The architecture couples a 16-bit wide instruction path with an 8-bit data path, delivering deterministic interrupt latency while keeping peripheral interaction intuitive. The XLP technology integrates multiple low-power modes (sleep, doze, idle, peripheral module disable) with retention RAM and a RTCC, allowing designs to draw microamps while still maintaining real-time responsiveness. Typical applications include consumer IoT sensor nodes, battery-powered medical wearables, industrial HMI keypads, low-power wireless sensor hubs, and home appliance user-interface boards. The wide 1.8-3.6 V supply range suits single-cell Li-ion or 2x AA operation without additional boost converters. When selecting this part, verify that your code base targets the K40 errata and PPS register set because the PPS subsystem differs from earlier PIC18F K-series devices. Designers transitioning from PIC18F25K22 or PIC18F26K22 should recompile against the XC8 K40 device pack to avoid peripheral library mismatches. This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design considerations not bundled in the manufacturer datasheet, giving engineers a faster path to a validated 8-bit design.

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PIC18LF26K40-I/SP - 8-Bit 64MHz MCU 64KB Flash 28-SPDIP | Microchip
PIC18LF26K40-I/SP

PIC18LF26K40-I/SP - 8-Bit 64MHz MCU 64KB Flash 28-SPDIP | Microchip

The Microchip Technology PIC18LF26K40-I/SP is an 8-bit RISC PIC18 microcontroller with a 64MHz CPU core, 64KB (32K x 16) of Flash program memory, and 1KB of Data EEPROM, housed in a 28-pin SPDIP (SP) through-hole package. The 'LF' prefix denotes the low-voltage/F-version silicon (1.8V-3.6V VDD) while the 'I' suffix indicates the industrial temperature grade (-40C to +85C). An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, non-volatile program memory, and peripheral interfaces on one die. The PIC18LF26K40 belongs to the PIC18 microcontrollers > 8-bit MCU > embedded processor > microcontroller hierarchy within Microchip's eXtreme Low Power (XLP) family, a category engineered for battery-powered and energy-harvesting applications where quiescent current directly governs battery life. Key features include 4KB RAM, 256B EEPROM, 24 channels of 10-bit ADC, a 5-bit DAC, two comparators, PWM, CCP, CWG (Complementary Waveform Generator), HLT (Hardware Limit Timer), WWDT (Windowed Watchdog Timer), SCAN/CRC, ZCD (Zero-Cross Detection), PPS (Peripheral Pin Select), EUSART, and SPI/I2C. The device operates from 1.8V to 3.6V, delivering 64MHz of CPU performance at low power thanks to nanoWatt XLP technology with deep-sleep currents in the nanoampere range. Architecturally, the PIC18LF26K40 uses an enhanced Harvard RISC core with 49 instructions and a 16-level hardware stack, augmented by Peripheral Pin Select (PPS) which allows remapping of digital peripherals to a wide range of I/O pins, easing PCB layout. The integrated 10-bit ADC with up to 24 channels enables direct connection to multiple analog sensors, while the 5-bit DAC supports setpoint generation, trimming, and analog bias control without external components. Typical applications include low-power IoT sensor nodes, battery-operated consumer appliances, industrial control panels, smart metering, LED lighting control, and USB-to-UART bridge adapters in compact through-hole form factors. The wide analog integration (ADC/DAC/comparators) suits mixed-signal designs where discrete op-amps and ADCs would otherwise inflate BOM cost and PCB area. When designing with the PIC18LF26K40, ensure the VDD rail stays within 1.8V-3.6V and add decoupling (100nF plus 10uF bulk) on every supply pin. PPS routing must be configured in firmware before the corresponding peripheral is enabled; an unconfigured PPS can leave a peripheral electrically disconnected. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the bare datasheet.

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PIC18LF26K40-I/SS - 64KB Flash XLP 8-bit MCU | Microchip
PIC18LF26K40-I/SS

PIC18LF26K40-I/SS - 64KB Flash XLP 8-bit MCU | Microchip

The Microchip Technology PIC18LF26K40-I/SS is a low-power, high-performance 8-bit microcontroller from the PIC18 XLP 18K family, featuring 64 KB of Flash program memory, 4 KB of RAM, and 256 bytes of EEPROM in a 28-pin SSOP package. It integrates a rich peripheral set including a 10-bit ADC with Computation (ADCC), a 5-bit DAC, comparators, PWM, CCP, CWG, HLT, WWDT, SCAN/CRC, and ZCD, and operates up to 64 MHz across a 1.8 V to 3.6 V supply range. What is a microcontroller (MCU)? A microcontroller is a single-chip computer that combines a CPU core, non-volatile program memory (Flash), working memory (RAM), data EEPROM, and a rich set of analog and digital peripherals on one die. The PIC18LF26K40 belongs to the PIC18 8-bit RISC family within the broader 8-bit MCU category of microcontrollers and embedded controllers in integrated circuits, optimized for low-power (XLP) general-purpose designs that need to run from a single Li-ion or 2xAA cell. Key features include the proprietary eXtreme Low-Power (XLP) technology with nanoWatt XLP sleep currents below 50 nA typical, a Core Independent Peripherals (CIPs) block that offloads timing-critical tasks from the CPU, and direct memory access via the 10-bit ADCC for automated Capacitive Voltage Divider (CVD) touch sensing. The 28-SSOP package with 0.65 mm pitch is footprint-compatible across the PIC18F/LF26K40 family, allowing easy migration between F (Flash, 1.8-5.5 V) and LF (low-voltage Flash, 1.8-3.6 V) variants and between I (industrial -40 to +85 C) and E (extended -40 to +125 C) temperature grades. Technically, the PIC18LF26K40 implements a Harvard-architecture RISC core with a 16-bit instruction word, an 8-level hardware stack, and a 31-level software stack, providing deterministic interrupt response and single-cycle execution for most instructions. The CWG, CCP, PWM and HLT peripherals can be wired together to drive power-conversion and motor-control topologies without CPU intervention, while the SCAN/CRC peripheral performs background memory integrity checks for functional-safety designs. Typical applications include battery-powered IoT sensor nodes, low-power wireless remotes, consumer appliances with capacitive touch user interfaces, industrial control with LIN or UART bridges, and small motor-control boards. The wide peripheral integration lets a single PIC18LF26K40 replace a discrete MCU plus several support ICs, shrinking BOM cost and PCB area. When designing with this part, place a 100 nF decoupling capacitor on each VDD pin within 3 mm, connect all VSS pins to a solid ground pour, and keep the MCLR pull-up within 25 mm of the pin. Choose the LF (1.8-3.6 V) variant for battery operation and the F (1.8-5.5 V) variant when the board must run from a regulated 5 V rail. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet, helping engineers evaluate the PIC18LF26K40-I/SS against the rest of the PIC18 K40 family and competing 8-bit MCUs.

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PIC18LF26K40T-I/ML - 64KB Flash 8-bit MCU, 28-QFN | Microchip
PIC18LF26K40T-I/ML

PIC18LF26K40T-I/ML - 64KB Flash 8-bit MCU, 28-QFN | Microchip

The Microchip PIC18LF26K40T-I/ML is an 8-bit PIC18 microcontroller with 64KB Flash, 4KB RAM and 256B EEPROM running at up to 64 MHz, housed in a 28-pin QFN (6x6 mm) package. As a member of the PIC18F/LF "K40" family it integrates Core Independent Peripherals (CIPs) such as CWG, WWDT, CRC/Memory Scan, Hardware CVD, Zero-Cross Detect and Peripheral Pin Select, supporting low-power and mixed-signal designs in a single chip. A microcontroller (MCU) is a compact integrated circuit containing a CPU core, program memory (Flash), data memory (RAM/EEPROM), and programmable peripherals on one die. The PIC18 family sits in the 8-bit MCU hierarchy, between simple PIC10/PIC12 baseline parts and higher-pin-count PIC24/PIC32 16/32-bit parts. The 'LF' prefix indicates the wide-voltage variant (1.8 V to 3.6 V operation), distinguishing it from the 'F' 2.3 V-5.5 V siblings, while the 'XLP' (eXtreme Low Power) label denotes sub-uA/MHz active current and multiple deep-sleep modes with peripheral wake. Key features include 64 KB self-programmable Flash, 4 KB SRAM, 256 B EEPROM, a 10-bit ADC with Computation (ADC2), 5-bit DAC, comparators with selectable rail-to-rail inputs, 8-bit/16-bit timers, PWM, CCP, CWG, SMT, WWDT with windowed mode, ZCD, and Peripheral Pin Select for flexible I/O mapping. CWG and ZCD together enable zero-cross switching for TRIAC/SCR dimmers. The 28-QFN (6x6) package is footprint-compatible with the 28-pin SPDIP/SOIC variants. The LF core combines a 16-bit wide instruction path with a 31-level hardware stack and a modified Harvard bus, giving the part its 64 MIPS throughput at 64 MHz while keeping deterministic interrupt latency. ADC2 (Computation ADC) adds averaging, oversampling and threshold comparison in hardware, offloading the CPU in sensor and touch applications. Typical applications include LED lighting and TRIAC dimmer control, IoT sensor nodes, low-power consumer appliances, USB-CDC/HID human-interface devices, motor-control BLDC/H-bridge drivers, and battery-powered metering. The wide 1.8 V-3.6 V supply range and XLP nanoWatt XLP sleep modes (<1 uA typical with RTC) suit 2xAA and coin-cell designs. Design with this part requires attention to VDDCORE decoupling (the LF K40 needs a 1 uF + 100 nF pair on the dedicated core pin), proper MCLR pull-up for in-circuit serial programming (ICSP), and ICP/ICD pin assignment via #pragma to keep PGx/PGx free in production. The internal 32 kHz LFINTOSC plus PLLx4 enable low-Iq operation without an external crystal. This page consolidates distributor pricing, drop-in alternative MPNs, application guidance and design notes not found on a single distributor listing.

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PIC18LF26K40T-I/MV - 8-Bit XLP MCU 64KB Flash | Microchip
PIC18LF26K40T-I/MV

PIC18LF26K40T-I/MV - 8-Bit XLP MCU 64KB Flash | Microchip

The Microchip Technology PIC18LF26K40T-I/MV is a low-power, high-performance 8-bit PIC18 microcontroller built on an enhanced RISC architecture and manufactured in CMOS process, delivering 64KB (32K x 16) of Flash program memory, 3720 bytes of SRAM, and 1KB of data EEPROM in a compact 28-pin UQFN (4x4 mm) package with exposed thermal pad. The device operates from a 1.8V to 3.6V supply (LF variant) and supports up to 64MHz CPU clock via the integrated 16MHz internal oscillator with PLL, providing 16 MIPS instruction throughput. The 'T' suffix indicates Tape and Reel packaging and the 'I' denotes the -40C to +85C industrial temperature range. A microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, non-volatile program memory, and peripheral interfaces into one package. The PIC18LF26K40T-I/MV belongs to the PIC18 family of 8-bit MCUs, which sits within the broader 8-bit microcontroller category and ultimately under the embedded processing / semiconductor hierarchy. Microcontrollers of this class are typically used as the central decision-making element in embedded designs, handling sensor reads, actuator control, and communication protocol tasks without off-loading logic to external processors. Key features include Microchip's eXtreme Low Power (XLP) technology, a 10-bit ADC with Computation (ADCC) supporting Capacitive Voltage Divider touch sensing, a 5-bit DAC, complementary waveform generator (CWG), Windowed Watchdog Timer (WWDT), CRC/SCAN, Zero-Cross Detect (ZCD), Peripheral Pin Select (PPS), EUSART, MSSP (SPI/I2C), and PWM/CCP/Capture/Compare peripherals. Core Independent Peripherals (CIPs) execute tasks in hardware without CPU intervention, reducing firmware complexity and power consumption. Architecture-wise, the device uses a Harvard-style bus with separate program and data paths, an 8-bit ALU, and a hardware multiplier for arithmetic-intensive routines. The instruction set is largely orthogonal and C-friendly, supported by MPLAB X IDE, MCC code configurator, and the XC8 toolchain. Multiple low-power modes (Idle, Doze, Peripheral Module Disable, Deep Sleep) further enhance energy efficiency in battery-powered designs. Typical applications include low-power IoT sensor nodes, capacitive touch user interfaces, battery-powered handheld instrumentation, home appliances and white goods, motor control for small BLDC fans, LED lighting controllers, and industrial control modules. The 64KB of Flash supports substantial application code, while the 4KB RAM (per the description block) and 1KB EEPROM provide adequate headroom for buffered data and non-volatile parameters. A key design consideration is ensuring the VDDCORE pin is properly decoupled with a 10uF bulk + 0.1uF ceramic pair, and that unused I/O pins are configured as outputs low or inputs with internal weak pull-ups disabled to minimize quiescent current. The XLP sleep currents in the nA range (per the family datasheet) make the part particularly attractive for energy-harvesting designs. This page synthesizes distributor pricing, drop-in alternatives (with same-package focus on the UQFN-28 / MV package), and practical design notes not found in the manufacturer datasheet alone.

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PIC18LF26K42-E/ML - 64KB Flash XLP 8-bit MCU | Microchip
PIC18LF26K42-E/ML

PIC18LF26K42-E/ML - 64KB Flash XLP 8-bit MCU | Microchip

The Microchip PIC18LF26K42-E/ML is an 8-bit PIC18 RISC microcontroller with 64KB Flash, 4KB RAM, and 1KB EEPROM, housed in a 28-pin QFN (6x6 mm) package. It operates at up to 64MHz from a 1.8V to 3.6V supply and integrates a 12-bit ADC2 with computation, DAC, comparators, PWM, CWG, DMA, ZCD, and PPS peripherals. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, volatile data memory, and I/O peripherals. The PIC18 family uses an enhanced Harvard RISC architecture with a 16-bit instruction word that provides single-cycle execution except for branches, delivering deterministic throughput at low clock rates. The 'LF' prefix designates a low-voltage FOSC-qualified silicon, while the 'K42' suffix signals the XLP (eXtreme Low Power) family with nanoWatt XLP technology, IDLE/DOZE power-management modes, and Peripheral Module Disable (PMD) registers that allow unused peripherals to be clock-gated to microamp-level standby current. Key features of the PIC18LF26K42-E/ML include Vectored Interrupts, DMA with automatic data transfer, MAP (Memory Access Partitioning), DIA (Device Information Area) for unique serialization, Scan/CRC blocks, Windowed Watchdog Timer (WWDT), Hardware Limit Timer (HLT), Peripheral Pin Select (PPS), UART/SPI/I2C, and a unique ID for traceability. The 12-bit ADC2 supports up to 35 channels with hardware accumulation and threshold scanning, eliminating CPU overhead for sensor-array sampling. Typical applications include low-power IoT sensor nodes, battery-powered home automation, industrial control with deterministic 64MHz performance, USB-to-UART bridges via the dedicated UART, LED lighting controllers using CWG and PWM, and consumer appliances requiring 64KB program space with peripheral-rich integration. The wide 1.8-3.6V range also simplifies designs powered directly from single-cell Li-ion or two-AA batteries. When designing with this MCU, ensure the 28-QFN (6x6) thermal pad is soldered to a copper pour to keep junction temperature within the -40C to +125C range. The PPS feature requires careful configuration to avoid conflicts; consult the datasheet pin mapping tables before locking the layout. Always verify the FOSC (oscillator) configuration bits match the chosen crystal or internal oscillator mode at programming time.

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PIC18LF26K42-E/SS - 8-Bit 64MHz 64KB Flash MCU | Microchip
PIC18LF26K42-E/SS

PIC18LF26K42-E/SS - 8-Bit 64MHz 64KB Flash MCU | Microchip

The Microchip Technology PIC18LF26K42-E/SS is an 8-bit PIC18 RISC microcontroller with 64KB (32K x 16) of Flash program memory, operating at up to 64MHz core speed, housed in a 28-pin SSOP package and supplied in tube packaging for the -E extended-temperature grade. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, integrating a CPU core, Flash/ROM program memory, SRAM data memory, EEPROM, and a rich set of on-chip peripherals. The PIC18LF26K42 belongs to the PIC18 XLP (eXtreme Low Power) family, which extends battery-powered node lifetimes via nanoWatt XLP sleep modes. In the broader taxonomy: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. The "LF" prefix designates the 1.8V-3.6V wide-voltage low-power tier, while the trailing "F" in PIC18F26K42 indicates the 2.3V-5.5V variant. Key features include 64KB Flash with self-programmability, 4KB SRAM, 1KB EEPROM, a hardware Direct Memory Access (DMA) controller, vectored interrupts for fast interrupt response, and Core Independent Peripherals (CIPs) such as Configurable Logic Cells (CLC), Complementary Waveform Generator (CWG), Numerical Controlled Oscillator (NCO), and Zero-Cross Detect (ZCD). Intelligent analog includes a 12-bit ADC with Computation (ADCC) and 8-bit DAC reference modules. Architecture-wise the PIC18LF26K42 uses an enhanced Harvard RISC core with a hardware multiplier, 31-level stack, and a 16-bit instruction word. The 64MHz internal oscillator (derived from a 16MHz HFINTOSC plus 4x PLL) eliminates external crystals in many designs. The DMA engine moves data between memory and peripherals without CPU wake-up, sharply reducing average active current and making the part attractive for low-power sensor nodes. Typical applications include IoT sensor nodes, battery-powered consumer products, industrial control loops, home automation, low-power wireless sensor hubs, USB-to-UART bridges, motor-control fan drivers, and LED lighting controllers. The Extended (-40C to +125C) temperature grade qualifies it for harsh industrial enclosures. Design tip: place a 100 nF decoupling capacitor within 3 mm of VDD and a 1uF bulk capacitor on VDD/VSS, and route the ICSP/ICD signals (PGECx/PGEDx) away from high-speed switching traces to avoid programming glitches. When migrating code from PIC18F26K42, only the voltage-range and IDD limits change; the peripheral set is identical. This page synthesizes distributor pricing, drop-in same-family and cross-brand alternatives, and practical design notes not consolidated on a single manufacturer datasheet.

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PIC18LF26K42-I/ML - 8-Bit 64MHz 64KB Flash MCU | Microchip
PIC18LF26K42-I/ML

PIC18LF26K42-I/ML - 8-Bit 64MHz 64KB Flash MCU | Microchip

The Microchip Technology PIC18LF26K42-I/ML is an 8-bit PIC® XLP™ 18K microcontroller running at 64 MHz, equipped with 64 KB (32K x 16) of Flash program memory, housed in a 28-pin QFN (6x6 mm) package with exposed thermal pad. Operating from 1.8 V to 3.6 V (the LF low-voltage variant of the F-series), it delivers high-performance computation at ultra-low power for battery-powered and energy-harvesting designs. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data-path CPU, integrating Flash program memory, RAM, EEPROM, peripherals (ADC, timers, UART, SPI, I2C), and interrupt logic into one package. PIC18 devices sit in the middle of Microchip's 8-bit portfolio, above the PIC16 and below the dsPIC/PIC24, offering C-compilable MIPS-class cores with CIP (Core Independent Peripherals). The LF part number prefix denotes low-voltage operation specifically optimized for 3.3 V and below. Key features include 64 KB Flash, 4 KB RAM, 1 KB EEPROM, 24 analog-capable I/O pins, a 12-bit ADC with Computation, multiple UART/SPI/I2C interfaces, and Microchip's eXtreme Low Power (XLP) technology enabling nanoWatt sleep currents below 50 nA typical. The 28-QFN package is the most compact option in the K42 family, ideal for space-constrained designs. Architecturally, the PIC18FxxK42 family introduces hardware-smart peripherals such as the CLC (Configurable Logic Cell), NCO (Numerically Controlled Oscillator), and DMA-to-memory, allowing autonomous operation without CPU intervention. This dramatically reduces active-mode runtime and overall system power. Typical applications include IoT sensor nodes, consumer wearables, battery-powered medical devices, automotive body and interior ECUs, and industrial wireless HMI controls. The QFN-28 footprint supports miniaturized PCBs common in these segments. When designing, ensure adequate thermal relief under the exposed pad is soldered to a ground copper pour for heat dissipation. The LF variant must not exceed 3.6 V on VDD; for 5 V rails use the PIC18F26K42 (without LF). Verify the Programming/ Debug pin assignments against the chosen debugger (ICD 4 or PICKit 4). This page synthesizes distributor pricing, drop-in Microchip same-family variants, and practical design notes that go beyond what is found in the bare manufacturer datasheet.

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PIC18LF26K42-I/MX - 64KB Flash 8-bit MCU, 64MHz XLP | Microchip
PIC18LF26K42-I/MX

PIC18LF26K42-I/MX - 64KB Flash 8-bit MCU, 64MHz XLP | Microchip

The Microchip Technology PIC18LF26K42-I/MX is an 8-bit PIC® XLP™ 18K-series microcontroller with 64KB Flash, 4KB RAM, and 1KB EEPROM, running at up to 64MHz, housed in a 28-pin UQFN (6x6 mm) package with exposed pad. The LF prefix denotes the low-voltage variant, supporting an operating voltage range of 1.8V to 3.6V from the same die as the F-version (which extends to 5.5V). The device integrates a rich set of Core Independent Peripherals (CIPs) including a 12-bit ADC with computation (ADC2), a 5-bit DAC, three analog comparators, PWM, vectored interrupts, and two DMA channels that move data between memory and peripherals without CPU involvement. A microcontroller (MCU) is an integrated circuit that combines a CPU core, program memory (Flash), data memory (RAM), and a range of on-chip peripherals such as timers, communication interfaces, and analog blocks. Within the broader taxonomy, the PIC18LF26K42 sits in the 8-bit MCU category, under microcontrollers, under integrated circuits. The "LF" suffix indicates Microchip's low-power (XLP - eXtreme Low Power) family, optimized for battery-powered and energy-harvesting applications where nanoWatt sleep currents are critical. The "K42" denotes a feature-rich family with extensive CIP integration and high-resolution analog. Key differentiating features include the 12-bit ADC2 with automated accumulation, averaging, and threshold comparisons offloaded from the CPU, and the Peripheral Pin Select (PPS) that remaps most digital I/O functions to any pin. With 25 usable I/O pins on the 28-pin UQFN footprint and four 16-bit timers, the device delivers high I/O density for its package size. Sleep current is rated in the nanoWatt range with multiple power-managed modes (DOZE, IDLE, SLEEP) and an on-chip voltage reference. The integrated DMA enables background data movement between ADC results and memory buffers, freeing CPU cycles for application logic. Architecturally, the PIC18F26K42 uses a RISC-based 8-bit core with a 16-bit instruction word, an 8-level hardware stack, and C-compiler-friendly architecture. The Microchip MPLAB X IDE with XC8 compiler provides free and commercial development toolchains, and the device is supported by the MPLAB Code Configurator (MCC) for graphical peripheral setup. The same die is offered in 28/40/48-pin variants, and the LF (low-voltage) and F (full-voltage) versions are pin-compatible, simplifying dual-sourcing strategies. Typical applications include low-power IoT sensor nodes, battery-powered medical monitors (e.g., glucose meters, pulse oximeters), industrial HMI panels, USB-CDC/HID peripherals, and consumer remote controls. The XLP nanoWatt technology and integrated DMA make it well-suited to always-on edge devices running from a coin cell or energy harvester. In automotive body electronics and aftermarket accessories, the wider PIC18F26K42 family is also commonly deployed. When designing with this part, note that the LF variant is limited to 3.6V maximum; for designs requiring 5V tolerance, choose the F variant (PIC18F26K42-I/MX). The exposed pad of the UQFN-28 package must be soldered to the PCB ground plane for thermal dissipation and electrical performance; missing the pad connection can cause latch-up or logic errors. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet, helping procurement and engineering teams select, source, and design with the PIC18LF26K42-I/MX more efficiently.

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PIC18LF26K42-I/SO - 64KB Flash 8-bit XLP MCU | Microchip
PIC18LF26K42-I/SO

PIC18LF26K42-I/SO - 64KB Flash 8-bit XLP MCU | Microchip

The Microchip PIC18LF26K42-I/SO is an 8-bit PIC18 microcontroller from the XLP (eXtreme Low Power) family, featuring 64KB of Flash program memory, 4KB of RAM, and 1KB of EEPROM in a 28-pin SOIC (SO) wide-body package. It operates up to 64MHz, supports 1.8V to 3.6V core voltage, and integrates 12-bit ADC2, 5-bit DAC, comparators, PWM, DMA, vector interrupts, MAP, and DIA peripherals. A microcontroller (MCU) is a single-chip computer containing a CPU, memory, and programmable I/O peripherals. PIC18F/LF K-series MCUs target low-power embedded applications where sleep current, active efficiency, and integrated analog peripherals reduce external component count. The 'LF' variant denotes a low-voltage core (1.8-3.6V), while the 'F' variant extends to 5V. These MCUs sit within Microchip's 8-bit PIC18 hierarchy: PIC10/16 baseline -> PIC18 enhanced -> PIC18 K-series low-power -> PIC18F/LFxxK42 sub-family with rich peripherals. Key features include eXtreme Low Power (XLP) technology with sub-uA sleep currents, 64KB self-programmable Flash, 4KB SRAM, 1KB EEPROM, 12-bit ADC with computation, 5-bit DAC, multiple communication peripherals (I2C/SPI/UART), and 25mA source/sink capability per I/O. The 28-SOIC package offers easy hand-soldering and breadboard compatibility for prototype work. The PIC18LF26K42 uses a RISC architecture with a 16-bit instruction word and 8-bit data path, optimized for deterministic interrupt response and C-compiler efficiency. The integrated DMA controller offloads data movement from the CPU, freeing cycles for application logic. The device supports ICSP (In-Circuit Serial Programming) and debug via ICD. Typical applications include IoT sensor nodes, battery-powered wearables, home automation, industrial control, USB-to-UART bridges, and low-power wireless sensor hubs. Its XLP technology enables years of operation on coin-cell batteries. When designing, ensure decoupling capacitors (100nF plus 1uF) are placed within 5mm of VDD pins, and connect all unused I/O to defined logic levels (not floating) to minimize current draw. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC18LF26K42-I/SP - 64KB Flash 8-bit XLP MCU, 28-SPDIP | Microchip
PIC18LF26K42-I/SP

PIC18LF26K42-I/SP - 64KB Flash 8-bit XLP MCU, 28-SPDIP | Microchip

The Microchip Technology PIC18LF26K42-I/SP is an 8-bit PIC18 XLP microcontroller featuring 64KB Flash, 4KB RAM, and 1KB EEPROM in a 28-pin SPDIP package, running at up to 64MHz. It integrates 12-bit ADC2, 5-bit DAC, comparators, PWM, DMA, vectored interrupts, and Core Independent Peripherals (CIPs) into a low-power eXtreme Low Power (XLP) architecture optimized for battery-powered and energy-harvesting designs. What is a PIC18 XLP microcontroller? PIC18 XLP is Microchip's enhanced 8-bit microcontroller family built on a modified Harvard architecture with C compiler-friendly instruction set, combining large memory with advanced peripherals. Within the broader taxonomy, PIC18 belongs to 8-bit microcontrollers -> microcontrollers (MCUs) -> embedded processors -> semiconductors. The 'LF' prefix denotes the low-voltage (1.8V-3.6V) variant, while XLP denotes deep-sleep currents down to nanoamp levels, targeting IoT, wearables, and portable instrumentation. Key features include 64MHz internal oscillator, four 16-bit timers, two I2C, two SPI, two UART, 12-bit ADC2 with computation, 5-bit DAC, three op-amps (selected packages), DMA controller, vectored interrupts with hardware context save, and on-chip CIPs such as CWG, NCO, and PWM. The 28-SPDIP package brings 25 programmable I/O pins through Peripheral Pin Select (PPS), allowing flexible routing of digital peripherals to physical pins. Technically, the K42 family uses a 14-stage instruction pipeline with single-cycle ALU operations and hardware multiplier, supporting both C and assembly development. The DMA engine moves data between memory and peripherals without CPU intervention, freeing the core for low-power sleep. The ADC2 includes averaging, oversampling, and threshold comparisons for sensor conditioning without external DSP. Typical applications include IoT sensor nodes, low-power wireless sensor hubs, battery-powered medical wearables, HVAC controls, smart energy metering, and USB-to-UART bridges. The wide peripheral set makes it equally suitable for industrial HMI front-ends and consumer white-goods controllers. When designing with this part, plan for PPS reassignment before committing PCB traces - the same silicon can map UART, I2C, or SPI to almost any I/O pin, but that mapping must be set in firmware. Choose the LF variant only if your system rail is <=3.6V; otherwise migrate to the PIC18F26K42 (F = 2.3V-5.5V). This page synthesizes verified distributor pricing, drop-in alternatives from the same K42 family, and practical design notes not found in the standalone datasheet, helping engineers select, source, and integrate the PIC18LF26K42-I/SP faster.

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PIC18LF26K42-I/SS - 64KB Flash XLP 8-bit MCU | Microchip
PIC18LF26K42-I/SS

PIC18LF26K42-I/SS - 64KB Flash XLP 8-bit MCU | Microchip

The Microchip PIC18LF26K42-I/SS is a low-power, high-performance 8-bit PIC microcontroller built on the enhanced mid-range core with XLP (eXtreme Low Power) technology, housed in a 28-pin SSOP package. The device integrates 64KB of Flash program memory, 1KB of EEPROM, 8KB of SRAM, and runs at up to 64MHz, targeting battery-powered and energy-harvesting applications. An 8-bit microcontroller (MCU) is a single-chip computer that combines a CPU, RAM, non-volatile program memory, and peripherals around an 8-bit data path. The PIC18LF26K42 belongs to the PIC18 family (8-bit PIC RISC architecture) within Microchip's broader microcontroller hierarchy: 8-bit MCU -> PIC -> PIC18 -> PIC18 K42 sub-family. Within the system, the MCU acts as the central controller, executing firmware and managing analog and digital peripherals in real time. Key features include the integrated Core Independent Peripherals (CIPs) such as CWG, NCO, DSM, CCP, PWM, and the configurable logic cell (CLC), which operate without CPU intervention. Intelligent analog peripherals include a 12-bit ADC with Computation (ADCC) supporting up to 35 channels, two comparators, two 8-bit DACs and a 5-bit DAC. A 64MHz internal oscillator, vectored interrupts, and a dedicated DMA controller improve throughput and reduce CPU load. Typical applications include IoT sensor nodes, battery-powered instrumentation, consumer appliances, LED lighting controllers, and Human-Machine Interface (HMI) designs. The XLP nanoWatt features (IDLE/DOZE/SLEEP modes) and a wide 1.8V to 5.5V supply range support direct operation from 3.3V or 5V rails, making the device easy to integrate into mixed-voltage systems. Design consideration: place a 100nF decoupling capacitor adjacent to every VDD/VSS pair, route the AVdd trace away from switching nodes, and reserve a 4.7kohm pull-up on MCLR for reliable in-circuit serial programming (ICSP). This page consolidates distributor pricing, SSOP-28 drop-in alternatives within the PIC18 K42 family, and application notes to help procurement and firmware teams make an informed selection.

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