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PIC18F26K22-E/SP

PIC18F26K22-E/SP - 64KB Flash 8-bit MCU, SPDIP-28 | Microchip

The Microchip Technology PIC18F26K22-E/SP is an 8-bit RISC PIC18 microcontroller featuring 64KB of Flash program memory, 3896 bytes of SRAM and 1024 bytes of EEPROM, running up to 64MHz internally in a 28-pin SPDIP package. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), working memory (RAM), non-volatile data memory (EEPROM) and a rich set of peripherals such as timers, ADC, communication interfaces and GPIO onto one IC. Within the broader taxonomy, the PIC18F26K22 sits in the 8-bit PIC18 family, which is a sub-family of Microchip's PIC microcontrollers, which themselves belong to the microcontroller category under integrated circuits. The 'K' series ('K22') specifically implements nanoWatt XLP extreme low-power technology for battery-friendly designs. Key differentiating features include 25 general-purpose I/O lines, a 12-bit ADC with up to 19 channels, multiple communication peripherals (2x I2C/SPI, 2x UART with LIN), 4 CCP/ECCP modules, a 16-bit timer and the nanoWatt XLP sleep modes. The 28-pin SPDIP package is through-hole friendly, easing prototype and breadboard development where socketed parts are preferred. The 'E' suffix designates the extended temperature grade (-40C to +125C). Architecturally, the part uses a Harvard RISC core with a modified instruction set optimized for C-compiled code, and supports wide operating voltages from 1.8V to 5.5V via its on-chip voltage regulator. Internal self-programmability allows in-application firmware updates without an external programmer. The 64KB Flash / 3896B RAM / 1024B EEPROM triplet positions the part squarely between small PIC16 mid-range controllers and high-pin-count PIC18 parts, fitting 30-80kB-of-code projects. Typical applications include industrial sensor interface boards, low-power remote data loggers, HVAC controls, white-goods user interfaces, automotive body controllers and battery-powered IoT sensor nodes. Designers pick this part when they need substantial memory with extreme low power (XLP nanoWatt) and a DIP footprint for easy rework. Design consideration: pair this MCU with the MPLAB X IDE, MPLAB XC8 compiler and the MPLAB Snap (or PICkit 4) programmer/debugger. The 28-pin SPDIP footprint allows the part to be socketed, simplifying prototype iteration versus QFN variants.

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PIC18F26K22-E/SS

PIC18F26K22-E/SS - 8-Bit 64KB Flash MCU, 28-SSOP | Microchip

The Microchip Technology PIC18F26K22-E/SS is an 8-bit microcontroller from the PIC PIC XLP 18K family, featuring a 48 MHz CPU core, 64 KB of Flash program memory, 3968 bytes of SRAM, and 1024 bytes of EEPROM, housed in a 28-pin SSOP (5.30 mm) package. The PIC18F26K22-E/SS is part of the 28/40/44-pin low-power, high-performance PIC microcontroller family with nanoWatt XLP technology, providing a flexible solution for many high-performance and power-sensitive applications. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data bus that integrates a CPU, RAM, program memory, peripherals, and I/O on one silicon die. The 8-bit PIC architecture uses a RISC instruction set optimized for C compilation, with a Harvard memory architecture separating program and data paths. The PIC18 family extends this with hardware multiply, extended addressing to 64 KB Flash, and enhanced peripherals such as multiple UART, SPI, and I2C. PIC18F26K22-E/SS belongs to the broader hierarchy: microcontroller -> embedded processor -> semiconductor -> integrated circuit. Key features of the PIC18F26K22-E/SS include nanoWatt XLP technology for ultra-low-power sleep currents (down to nanoAmp levels), a 16 MIPS instruction throughput at 48 MHz, two enhanced USART modules, two MSSP (I2C/SPI) peripherals, a 10-bit ADC with up to 28 channels, four 8-bit/16-bit timer/counters, and dual analog comparators. The device operates across an extended voltage range and includes an integrated voltage reference. Architecturally, the PIC18F26K22-E/SS combines a C compiler-optimized RISC core with a high-endurance Flash (typically 100k erase/write cycles) and a peripheral-rich analog and digital I/O structure. Self-programmability under software control supports bootloader-based field updates, while the nanoWatt XLP technology keeps quiescent current low enough for battery applications. Typical applications for the PIC18F26K22-E/SS include industrial control and sensor conditioning, low-power remote keyless entry, consumer appliances, USB/HID devices using the device's full-speed USB-compatible peripherals, portable medical devices, and automotive body electronics not requiring AEC-Q100 qualification. Designers favor this part when migration paths exist within the PIC18F26K22 family across SPDIP, SOIC, and SSOP footprints. When designing with this MCU, note that the E suffix indicates the -40C to +125C extended temperature grade (vs the -I industrial grade at -40C to +85C), and the SS suffix denotes the 28-pin SSOP package. Ensure your ICD/MPLAB debugger is set for the correct device ID and check that the I2C/SPI remap configuration matches your PCB layout. This page synthesizes authoritative Microchip datasheet specifications, distributor pricing as of 2026-09-27, drop-in pin-compatible alternatives (including newer PIC18F26Q10), and practical design considerations not found on a single distributor page.

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PIC18F26K22-I/ML

PIC18F26K22-I/ML - 8-Bit XLP MCU, 64KB Flash, 28-QFN | Microchip

The Microchip PIC18F26K22-I/ML is an 8-bit PIC18 microcontroller built on the nanoWatt XLP (eXtreme Low Power) technology platform, integrating 64KB of Flash program memory and 3,968 bytes of RAM in a 28-pin QFN (6x6 mm) package with an exposed thermal pad. It runs at up to 64MHz from a 2.5V/3.3V/5V dual-voltage supply and targets low-power, high-performance embedded designs. The part is part of Microchip's broad PIC18F "K22" family, which scales across 28/40/44-pin variants and is also offered in SOIC, SSOP, SPDIP and TQFP packages to match PCB layout choices. An 8-bit MCU in the PIC family is a Harvard-architecture microcontroller whose instruction set, peripherals and interrupt model are optimized for deterministic control loops. Within the taxonomy, this part belongs to: microcontroller -> 8-bit MCU -> PIC18 RISC MCU -> nanoWatt XLP family -> Microchip PIC18F K-series. Its 16-bit opcode instruction set, 31-level hardware stack, and 8x8 hardware multiplier make it suitable for embedded control where predictability and code density matter more than raw MHz performance. Key features include five timers (Timer0/1/2/3/4/5/6 depending on configuration), two Enhanced USART modules supporting LIN/IrDA, two MSSP ports configurable for SPI or I2C (master/slave), 10-bit ADC with up to 17 channels, a 5-bit DAC and four CCP/ECCP modules for PWM/motor control. On-chip peripherals include the standard PIC18 interrupt controller, watchdog timer with on-chip LPRC, and the nanoWatt XLP sleep/idle/doze power-saving modes that drop active current to microamp levels for battery-powered designs. Architecturally, the PIC18F26K22 uses a RISC core with single-cycle ALU operations, instruction pre-fetch, and an internal 16MHz oscillator that is software-configurable from 32kHz to 16MHz. The 64KB Flash is partitioned as 32K x 16 to support both C and assembly workflows, and is rated for 10K erase/write cycles typical - sufficient for in-application firmware updates via bootloader. Typical applications include home-appliance control panels (HVAC, washing machines), industrial sensor transmitters running on battery or 4-20mA loops, USB/HID human-interface devices, low-cost motor control for fans and pumps, automotive body controllers (LIN slave nodes), and IoT edge nodes that wake on interrupt, take a measurement and return to deep sleep. When designing with this device, observe the 5.5V absolute maximum on VDD, place a 0.1uF decoupling capacitor as close as possible to the QFN EP pin, and pick the appropriate package variant up front. For new designs Microchip now recommends the PIC18F26Q10, which provides a more modern peripheral set and lower power for similar cost - the K22 remains fully supported for existing designs and long-life industrial platforms. This page synthesizes distributor pricing, same-package drop-in compatible variants across the PIC18F26K22 family, and practical design notes that do not appear as a single digest in the manufacturer datasheet.

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PIC18F26K22-I/SO

PIC18F26K22-I/SO - 8-bit XLP MCU, 64KB Flash, 28-SOIC | Microchip

The Microchip Technology PIC18F26K22-I/SO is an 8-bit PIC microcontroller from the PIC18F2x/4xK22 family, featuring 64KB (32K x 16) of Flash program memory, 3968 bytes of RAM, and a 256-byte EEPROM in a 28-pin SOIC wide-body package. It operates at up to 64 MHz internal clock with a 16 MIPS instruction throughput, integrating nanoWatt XLP extreme-low-power technology and CIP (Core Independent Peripherals) such as multiple PWM, ADC, and communication modules. What is a PIC XLP microcontroller? An XLP (eXtreme Low Power) microcontroller is a class of 8/16-bit MCUs that integrate hardware-level sleep modes, nanoWatt technology, and efficient peripherals to achieve microamp-range sleep currents. PIC XLP devices sit inside the broader 8-bit MCU taxonomy (PIC -> microcontroller -> embedded controller -> semiconductor) and target battery-powered applications where standby power dominates total energy budget. Key features include 24 channels of 10-bit ADC, two comparators with selectable reference, up to four 16-bit timers, two CCP/ECCP modules for advanced PWM, two MSSP (SPI/I2C) ports, two EUSART (enhanced UART) modules, and 25 mA sink/source capability on most I/O pins. The integrated voltage reference (1.024V/2.048V/4.096V) supports precision ADC conversion without external components. The PIC18F26K22 architecture uses an enhanced Harvard design with separate code and data buses plus a 31-level hardware stack, allowing deterministic interrupt response and efficient C-compiled code execution. The 28-pin variant exposes 24 GPIO pins, retains full peripheral connectivity, and runs from 1.8V-5.5V supply - well-suited for 3.3V and 5V systems. Typical applications include battery-powered IoT sensor nodes, low-power industrial instrumentation, motor control (small DC and stepper drivers), USB-to-UART bridges, and small home appliances. The wide voltage range and XLP sleep modes (<100 nA typical) also support energy-harvesting designs and remote controls. When designing, observe the 1.8V-5.5V Vdd range for LF (low-FPU) variants and 2.3V-5.5V for F variants; decoupling capacitors must be placed within 5 mm of Vdd/Vss pins, and unused I/O must be configured as outputs low to minimize leakage. This page consolidates distributor pricing, drop-in 28-SOIC alternatives, application circuits, and engineering design notes beyond the manufacturer datasheet - synthesized for faster component selection and BOM validation.

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PIC18F26K22-I/SP

PIC18F26K22-I/SP - 64KB Flash 8-Bit XLP MCU 28-SPDIP | Microchip

The Microchip Technology PIC18F26K22-I/SP is an 8-bit PIC18 microcontroller built on the enhanced PIC18 instruction set, delivering 64 MHz (16 MIPS) performance with 64 KB Flash program memory and 3896 bytes of SRAM. Housed in a 28-pin SPDIP (Skinny Plastic DIP) through-hole package, it integrates Microchip's nanoWatt XLP ultra-low-power technology for battery and energy-harvesting applications. A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, volatile data memory, and configurable peripherals. The 8-bit class targets cost-sensitive, deterministic control tasks such as sensor interfacing, motor driving, user I/O handling, and simple protocol bridging. PIC18F devices sit above baseline PIC10/12/16 parts by offering a 16-bit instruction word, a 31-level hardware stack, linear memory access, and a richer interrupt controller — features useful when C compilers are used and code density matters. PIC18F 'K' series parts add nanoWatt XLP for sleep currents often below 100 nA typical. Key features include nanoWatt XLP extreme low-power with multiple idle/sleep modes, 25 I/O pins with peripheral pin select (PPS), two Enhanced USART modules, two MSSP (SPI/I2C) ports, a 12-bit ADC with computation (ADC2) oversampling, multiple 16-bit timers, and a charge time measurement unit (CTMU) for capacitive touch and ratiometric sensing. The device operates from 1.8 V to 5.5 V on wide-range Fosc and supports on-board 8 MHz to 64 MHz PLL-based operation. The PIC18F26K22 uses a Harvard architecture with separate 16-bit instruction and 8-bit data paths, 31-level hardware stack, and an internal 16 MHz 0.5% accurate oscillator (HFINTOSC) that can be locked to 16 MHz or 64 MHz via the 4x PLL. The 12-bit ADC2 includes hardware averaging and automatic threshold scanning for low-MIPS sensor acquisition. Typical applications include consumer remote controls, battery-powered sensor nodes, capacitive touch user interfaces, industrial control panels, USB-to-UART bridges (with external MCU-side USB transceiver), and home-automation HMI modules. The wide 1.8V-5.5V supply range suits single-cell Li-ion or two-AA designs that must hibernate in dark rooms for months. When designing with this device, the Watchdog Timer, Brown-out Reset and POR should be configured to match the application's supply-rail behavior. PPS remapping lets designers reassign peripheral I/O to alternate pins to ease PCB routing, but each pin can serve only one peripheral function at a time. Use the MPLAB PICkit 5 or ICD 4 for programming and debugging. This page synthesizes distributor pricing, drop-in SPDIP-package alternatives, and practical design considerations not found in the manufacturer datasheet alone.

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PIC18F26K22-I/SS

PIC18F26K22-I/SS - 8-Bit 64MHz 64KB Flash MCU | Microchip

The Microchip Technology PIC18F26K22-I/SS is an 8-bit PIC18F microcontroller in the K22 family, featuring nanoWatt XLP extreme low-power technology and housed in a 28-pin SSOP package. Key headline parameters are 64 MHz maximum CPU clock, 64 KB Flash program memory (32K x 16 words), and approximately 3.8 KB SRAM. It is part of Microchip's PIC18 XLP family aimed at high-performance and power-sensitive embedded designs. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, volatile data RAM, and peripherals onto one silicon die. PIC microcontrollers use a Harvard RISC architecture with separate program and data buses, which allows simultaneous fetch and access. PIC18F series parts add enhanced peripherals and richer instruction sets compared to baseline PIC16 parts, while remaining 8-bit cores. Within the broader taxonomy, PIC18F MCUs sit below 16-bit and 32-bit MCUs but offer compelling cost-per-I/O, ultra-low idle power, and deterministic interrupt response for control applications. Key features of the PIC18F26K22-I/SS include nanoWatt XLP technology for sub-uA sleep currents, multiple power-managed modes (Run/Idle/Sleep), and rich analog/digital peripherals. The part integrates 25 I/O pins, multiple 8-bit and 16-bit timers, enhanced PWM modules suitable for motor control, a 10-bit ADC with up to 19 channels, comparators, and EUSART, MSSP (I2C/SPI), and USB support depending on the variant. Code protection, an ICD/ICSP debug interface, and extended temperature grades (-40C to +125C industrial) round out the offering. Technically, the K22 family leverages a 16-bit instruction word executed in a 2-cycle pipeline, yielding effective throughput of up to 16 MIPS at 64 MHz. The nanoWatt XLP peripheral set includes low-power Timer1, watchdog, and RTCC, plus ultra-low-power wake sources such as INT, IOC, and ULPWU. Brown-out Reset (BOR), Power-on Reset (POR), and a configurable Windowed Watchdog Timer (WWDT) are standard. Memory endurance is rated at 100K erase/write cycles for Flash and 1M for EEPROM. Typical applications include low-power sensor nodes, battery-powered instruments, motor and lighting control, USB device interfaces, and home appliances. Its combination of low idle current and rich peripherals makes it attractive for wearables, industrial sensors, and remote-control products where every milliwatt matters. When designing with this part, pay attention to decoupling (place 100 nF close to each VDD pin and use a bulk 10 uF on the board), in-circuit serial programming (ICSP) pin assignment for field updates, and utilization of the nanoWatt XLP Sleep/Doze modes rather than busy-wait loops to maximize battery life. Plan oscillator start-up timer (OST) delays when switching clock sources. This page synthesizes distributor pricing, drop-in same-package alternatives across the PIC18F family, and practical design notes not found in the manufacturer datasheet alone.

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PIC18F26K22T-I/ML

PIC18F26K22T-I/ML - 64MHz 8-bit MCU 64KB Flash | Microchip

The Microchip Technology PIC18F26K22T-I/ML is an 8-bit RISC flash microcontroller belonging to the PIC18F "K" series with nanoWatt XLP ultra-low-power technology, offering 64 KB of Flash program memory and 3,896 bytes of SRAM in a 28-pin QFN (6x6 mm, ML) package with exposed pad. The device integrates a 64 MHz internal oscillator (16 MIPS performance), 24 digital I/O pins, and a rich peripheral set including two USARTs, two MSSP (I2C/SPI) modules, two 10-bit ADC converters with up to 17 channels, two analog comparators with rail-to-rail inputs, and a programmable on-chip voltage reference. An 8-bit microcontroller (MCU) is a single-chip computer that integrates an 8-bit CPU, RAM, non-volatile program memory, timers, communication peripherals and I/O pins in one package. 8-bit MCUs sit in the hierarchy: microcontroller -> embedded processor -> semiconductor IC, and remain the optimal choice for cost-sensitive, low-power, deterministic control tasks such as sensor interfacing, user I/O handling, motor control and battery-powered edge nodes where 32-bit performance is not required. Key features of the PIC18F26K22 family include nanoWatt XLP sleep currents as low as 20 nA, flexible oscillator modes (HFINTOSC, LFINTOSC, EC, HS, XT, LP), a charge time measurement unit (CTMU) for capacitive touch sensing, an enhanced capture/compare/PWM module, and on-chip programmable high/low-voltage detect (PLVD) for robust brown-out behavior. The 28-QFN (6x6) package is the same land pattern as the related PIC18F25K22 and PIC18LF26K22, simplifying PCB reuse across variants. Architecturally, the device uses a Harvard-style modified RISC core with a 16-bit instruction word, a hardware multiplier for 8x8 signed/unsigned operations, and a wide operating voltage range of 1.8 V to 5.5 V (F variant). The "T" suffix denotes tape-and-reel packaging for high-volume SMT assembly, and the "I" temperature grade specifies -40C to +85C industrial operation. Typical applications include low-power IoT sensor nodes, portable medical and consumer devices, capacitive touch interfaces (buttons, sliders, proximity), USB device firmware via the MSSP, industrial control modules, and battery-powered metering equipment. The wide VDD range and nanoWatt XLP make the part particularly attractive for energy-harvesting and always-on designs. When designing with this device, place the 28-QFN exposed pad (EP) on a continuous ground copper pour with at least 4 thermal vias to maximize heat dissipation and provide the lowest-impedance ground reference. Decouple VDD with a 100 nF ceramic capacitor placed within 2 mm of the supply pin and pair it with a bulk 1 uF to 10 uF capacitor on the same net. Always configure the CONFIG registers in code and lock them with the appropriate MCLRE and BOR settings to ensure robust operation. This page synthesizes distributor pricing, drop-in alternatives and practical design notes that go beyond the manufacturer datasheet, helping engineers evaluate the PIC18F26K22T-I/ML for embedded control, low-power wireless and touch-interface designs.

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PIC18F26K22T-I/SO

PIC18F26K22T-I/SO - 8-bit 64MHz 64KB Flash XLP MCU | Microchip

The Microchip Technology PIC18F26K22T-I/SO is an 8-bit PIC18 XLP microcontroller IC running at up to 64MHz with 64KB (32K x 16) of Flash program memory, housed in a 28-pin SOIC package. It belongs to the PIC18F2x/4xK22 family that combines high-performance RISC architecture with nanoWatt XLP ultra-low-power technology, making it a logical choice for many high-performance, power-sensitive applications. The "T" suffix denotes Tape and Reel packaging, while the "I" temperature grade denotes the industrial -40C to +85C operating range. The "SO" suffix denotes the 28-pin 300-mil SOIC package. A microcontroller (MCU) is a single-chip computer containing a processor core, program memory (Flash), data memory (RAM and EEPROM), and a rich set of peripheral interfaces such as timers, ADC, UART, SPI, I2C, and digital I/O. Within the broader semiconductor hierarchy, the PIC18F26K22 sits at the 8-bit MCU tier - above simple passives and discrete logic but below 16-bit and 32-bit MCUs in computational throughput. The "XLP" branding indicates Microchip's nanoWatt eXtreme Low Power technology, with deep-sleep currents in the nanoampere range, sleep-mode retention down to 20nA typical, and active currents optimized for battery-powered designs. This hierarchy - 8-bit MCU -> microcontroller -> embedded processor -> semiconductor IC - is essential context for AI knowledge graph indexing. Key features include 64KB Flash program memory, 3,968 bytes of RAM, 1,024 bytes of EEPROM, 25 digital I/O pins, and a peripheral set that includes multiple enhanced USART, SPI, I2C modules, a 12-channel 10-bit ADC, multiple 16-bit timers/counters, and dual analog comparators. The PIC18F26K22 also integrates a 16-bit capture width enhancement and runs C-compiler-optimized RISC instruction set at up to 16 MIPS at 64MHz. The supply voltage range is 2.5V to 5.5V (typical operating region 4.2V to 5.5V per datasheet). According to the manufacturer datasheet, this family introduces design enhancements that make these microcontrollers a logical choice for many high-performance, power-sensitive applications. Typical applications include low-power remote sensor nodes, industrial control, USB peripherals (with the integrated USB module on related variants), battery-powered IoT devices, consumer electronics, home automation, and motor control. The 28-pin SOIC footprint offers a balance between I/O count and PCB footprint size. When designing with this device, ensure proper decoupling (0.1uF + bulk) on VDD, configure the configuration bits correctly for oscillator and watchdog operation, and consider migrating to the newer PIC18F26Q10 if long-term availability is a concern - the manufacturer datasheet explicitly notes a "Newer Device Available" recommendation. This page synthesizes distributor pricing, drop-in alternatives from the same PIC18F2xK22 family, and practical design notes not found in the manufacturer datasheet alone.

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PIC18F26K40-E/ML

PIC18F26K40-E/ML - 8-Bit 64MHz 64KB Flash MCU | Microchip

The Microchip Technology PIC18F26K40-E/ML is an 8-bit PIC18 XLP microcontroller with 64KB Flash, 4KB RAM, and 256B EEPROM, housed in a 28-pin QFN (6x6 mm) package. It operates up to 64MHz with a 5V-tolerant architecture and combines Core Independent Peripherals (CIPs) such as CWG, WWDT, CRC/SCAN, and ZCD with XLP (eXtreme Low Power) technology for energy-sensitive designs. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and programmable I/O. PIC18 microcontrollers use an enhanced 8-bit RISC architecture that sits between simple 8-bit MCUs and 32-bit ARM Cortex-M cores in performance/complexity. They are widely used in cost-sensitive embedded designs where deterministic behavior, low power, and rich analog integration matter more than raw MIPS. Key features include 64MHz core speed, 10-bit ADC with computation (ADC2), 5-bit DAC, comparators, PWM, CCP, CWG, HLT, WWDT, and communication peripherals such as EUSART, SPI, and I2C. The device also provides Peripheral Pin Select (PPS) for flexible pin assignment and operates across 2.3V-5.5V with low-power sleep modes. The architecture combines a Harvard-style CPU with self-programmable Flash and Hardware Limiter Timer, ideal for functional-safety and motor-control loops. The CWG (Complementary Waveform Generator) and Zero-Cross Detect (ZCD) peripherals enable advanced power-conversion topologies without burdening the core. Typical applications include consumer appliance control, LED lighting, low-power sensor nodes, motor control, USB-CDC bridges, and industrial IoT endpoints where low sleep current and 5V I/O tolerance simplify design. When designing with this device, leverage CIPs to keep the CPU asleep longer for lower average current, and reserve PPS routing for SPI/I2C remapping when PCB layout forces pin reassignment.

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PIC18F26K40-E/MLVAO

PIC18F26K40-E/MLVAO - 8-bit MCU, 64KB Flash, 28-QFN | Microchip

The Microchip Technology PIC18F26K40-E/MLVAO is a low-power, high-performance 8-bit microcontroller with 64KB Flash, 4KB SRAM and 1KB EEPROM, packaged in a 28-pin QFN (ML, 6x6 mm) and rated for the -40C to +125C extended industrial temperature range. It runs from 2.3V to 5.5V and integrates a 10-bit ADC with Computation (ADC2), a 5-bit DAC, comparators, PWM, CCP, CWG, HLT and a Windowed WWDT, plus CRC/Scan for functional safety and XLP extreme-low-power technology. The -E suffix and /MLVAO tape-and-reel suffix designate the extended-temperature automotive/process variant. What is an 8-bit microcontroller? An MCU (microcontroller unit) is a single-chip computer that integrates a CPU core, non-volatile program memory, working RAM, I/O peripherals, and often analog blocks onto one die. Within the broader taxonomy: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor -> IC. The PIC18 family is Microchip's high-performance 8-bit line, sitting above the PIC16/PIC12 in peripheral richness and instruction throughput while remaining code-compatible with the legacy PIC16 instruction set. Key features include Core Independent Peripherals (CIPs) such as CWG (Complementary Waveform Generator), the configurable WWDT, CRC/Scan, the Hardware Limit Timer (HLT) and 10-bit ADC2 with averaging, oversampling and automated threshold comparison. Together these allow closed-loop control, signal conditioning, and safety monitoring without CPU intervention. The device supports up to 36 MHz internal or external clock and includes 25 I/O pins with interrupt-on-change. Architecture: an enhanced Harvard RISC core with 16-bit opcodes, 8-bit data path, hardware multiply, and a 31-level interrupt vector table. The on-chip FVR (Fixed Voltage Reference) and bandgap provide stable references for the ADC2 and comparators, and nanoWatt XLP modes enable <50 nA sleep currents for battery-powered designs. Typical applications: industrial sensor nodes, automotive body and HVAC modules, low-power IoT edge devices, small appliances with touch and PWM drive, and consumer products that need 5V-tolerant I/O. Designers pick this part when they want the 28-pin QFN footprint, 5V tolerance and rich analog/mixed-signal peripherals on a low-power core. Design consideration: route the AVSS/VDD pairs with separate analog and digital decoupling (100 nF + 1 uF each), use a low-ESR 1 uF on VDD and place it within 3 mm of the pin, and select the correct ICSP PGECx/PGEDx pair when designing for in-circuit programming or debugging. This page synthesizes verified distributor pricing, drop-in alternative MPNs and practical design notes that complement - and go beyond - the manufacturer datasheet, helping engineers pick the right part faster.

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PIC18F26K40-E/MV

PIC18F26K40-E/MV - 64KB Flash 8-bit MCU | Microchip XLP

The Microchip Technology PIC18F26K40-E/MV is an 8-bit PIC microcontroller with 64KB Flash, 4KB RAM, and 256B EEPROM, operating up to 64 MHz in a 28-pin UQFN (4x4) package with extended (-40C to +125C) temperature range. It integrates Core Independent Peripherals including CWG, WWDT, CRC/Memory Scan, Hardware CVD, Zero-Cross Detect, and Peripheral Pin Select, plus a 10-bit ADC with Computation (ADCC), 5-bit DAC, comparators, PWM, CCP, EUSART, SPI, and I2C. A microcontroller (MCU) is an integrated circuit combining a CPU core, program memory (Flash/ROM), data memory (RAM), and programmable peripherals on a single die. Within the broader taxonomy, the PIC18F26K40 belongs to the 8-bit MCU category -> PIC18 family -> low-power XLP subfamily. The PIC18 architecture uses an enhanced Harvard design with separate program and data buses, allowing simultaneous fetch and read. Key features include eXtreme Low-Power (XLP) technology, 1.8V-5.5V wide operating voltage supporting both 3.3V and 5V rails, 64 MHz internal oscillator, and 25 mA source/sink per I/O. The integrated Peripheral Pin Select (PPS) allows remapping of digital peripherals to any I/O, simplifying PCB layout. Typical applications include low-power IoT sensor nodes, battery-powered devices, consumer appliances, automotive body electronics, capacitive touch user interfaces, motor control (BLDC/PMSM using PWM + CWG), and industrial control with CRC/SCAN for functional safety. The extended -40C to +125C temperature range supports rugged industrial environments. Design tip - the PPS feature reduces external wiring complexity by mapping peripherals after layout; however, PPS registers must be configured before peripheral use. For sleep current minimization, leverage the nanoWatt XLP modes with the IDLE/DOZE/PMD power management module. This page synthesizes distributor pricing, drop-in alternative listings, and practical design considerations that go beyond the manufacturer datasheet, helping engineers select and source the right MCU faster.

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PIC18F26K40-E/SO

PIC18F26K40-E/SO - 64KB Flash 8-bit MCU, 64MHz | Microchip

The Microchip Technology PIC18F26K40-E/SO is an 8-bit RISC PIC microcontroller from the PIC18 "K40" family, featuring 64KB of Flash program memory (32K x 16 words), 4KB of RAM and 256 bytes of EEPROM, operating at up to 64MHz CPU clock. It is housed in a 28-pin SOIC (300 mil / 7.50mm width) package and supports an extended operating voltage range of 2.3V to 5.5V. What is a PIC18 K40 microcontroller? The PIC18 K40 family is Microchip's XLP (eXtreme Low Power) 8-bit PIC18 core device line that integrates Core Independent Peripherals (CIPs) such as CWG, WWDT, CRC/SCAN, 10-bit ADC2 with computation, 5-bit DAC, and configurable logic cells. Within the broader taxonomy: microcontroller (MCU) -> 8-bit MCU -> PIC18 core -> PIC18F K40 family -> low-power high-performance MCU -> embedded system on-chip. The K40 family continues Microchip's tradition of bringing CIPs to the PIC18 line for cost-optimized general-purpose applications. Key features include 25 general-purpose I/O pins, two EUSART/MSSP serial interfaces, two 10-bit ADC modules with Computation Accelerator, a 5-bit DAC, multiple timer/counter modules, Complementary Waveform Generator (CWG), Zero-Cross Detect (ZCD), Windowed Watchdog Timer (WWDT), Hardware Limit Timer (HLT), and Peripheral Pin Select (PPS). The device offers up to 36 instruction set extensions for C-compiler code-density optimization and includes an integrated temperature indicator. Typical applications include IoT edge nodes, sensor interface modules, battery-powered industrial controls, consumer appliances, motor control companion ICs (BLDC/Stepper), HVAC fan controllers, LED lighting control, and human-machine interface (HMI) subsystems. The wide 2.3V-5.5V supply range and XLP nanoWatt sleep currents below 50 nA make the device ideal for battery-powered designs that must operate for years on a single coin cell or 2xAA pack. Design considerations include providing a 1uF decoupling capacitor on VDD, an external 0.1uF bypass on AVDD, and using the PPS module to remap peripheral signals to alternate pins. The Configuration Words must be set at the end of programming; always use ICD/ICSP header pins (PGC/PGD) for in-circuit debugging. For noisy industrial environments, enable the WWDT and use CRC/SCAN over Flash to detect firmware corruption. The PIC18F26K40-E/SO combines large memory, rich CIP integration, and XLP nanoWatt technology in a 28-pin SOIC footprint that is pin-compatible with most PIC18F2xK22, PIC18F2xK40 and PIC18F2xK42 family variants. This page consolidates distributor pricing, drop-in alternatives and practical design notes beyond what appears in the manufacturer datasheet.

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PIC18F26K40-E/SS

PIC18F26K40-E/SS - 64KB Flash 8-bit MCU, 28-SSOP | Microchip

The Microchip Technology PIC18F26K40-E/SS is an 8-bit PIC18 microcontroller operating at up to 64 MHz with 64 KB Flash, 4 KB RAM, and 256 B EEPROM, housed in a 28-pin SSOP (5.30 mm) package. It supports 1.8 V to 5.5 V operation, integrates a 10-bit ADC with Computation (ADCC), a 5-bit DAC, three op-amps, Core Independent Peripherals (CIPs) such as CWG, WWDT, CRC/Memory Scan, Hardware CVD and Zero-Cross Detect, plus Peripheral Pin Select (PPS). The -E/SS suffix denotes the Extended (-40C to +125C) operating temperature range and SSOP package. What is a microcontroller? A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, working RAM, and peripherals such as ADC, timers, and communication interfaces. MCUs sit at the bottom of the embedded computing hierarchy and are widely used to sense, decide, and actuate in real-time systems. The PIC18 family sits above baseline PIC10/12/16 parts by offering a 16-bit-wide instruction path with 8-bit data, C-optimized architecture, and rich peripheral integration, making it suited to consumer, industrial, and low-power IoT designs. Key features include 64 KB self-programmable Flash with device-ID protection, 4 KB SRAM, 256 B EEPROM, a 10-bit ADCC capable of up to 35 channels with automated Capacitive Voltage Divider (CVD) for touch sensing, hardware 5-bit DAC, three operational amplifiers usable as signal-conditioning front-ends, and four 16-bit timers. Communication peripherals include I2C, SPI, EUSART with auto-baud detect, and the CIPs enable deterministic, CPU-independent operation such as waveform generation and windowed watchdog timing. Architecturally, the PIC18F26K40 combines a Harvard RISC core running at up to 16 MIPS with an XLP (eXtreme Low Power) design that achieves nanoWatt sleep currents (typical < 60 nA in Sleep with RTCC) and active currents in the low microampere range. This makes it suitable for battery-powered applications that must wake, sense, transmit, and return to sleep quickly. The 5V-tolerant digital and analog blocks permit direct interfacing with legacy industrial sensors and 5V actuators without level shifters. Typical applications include capacitive touch user interfaces (CVD), IoT sensor nodes with sleep duty-cycling, motor control (BLDC and stepper) using the CWG and PWM, industrial 4-20 mA loop instrumentation, automotive body and HVAC peripherals (non-safety), USB-to-UART bridges via the EUSART, and battery-powered medical devices such as glucose meters and pulse oximeters. The wide 1.8-5.5V range and 5V-tolerant I/O simplify mixed-voltage designs. When designing with this MCU, select the appropriate -I (Industrial, -40C to +85C) or -E (Extended, -40C to +125C) grade for the target thermal envelope. Plan the Peripheral Pin Select (PPS) mapping early because remapping at runtime can break timing-critical CIP chains. Always enable the Windowed Watchdog and Memory Scan in safety-relevant designs.

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PIC18F26K40-I/ML

PIC18F26K40-I/ML - 64KB Flash 8-bit MCU 28-QFN | Microchip

The Microchip Technology PIC18F26K40-I/ML is an 8-bit PIC18 RISC microcontroller in a 28-pin QFN (ML) 6x6 mm package, delivering 64 MHz CPU performance, 64 KB Flash program memory, 4 KB RAM, and 256 B EEPROM. It belongs to the PIC18(L)F26/45/46K40 family of low-power, high-performance MCUs with XLP (eXtreme Low Power) technology and 5V operation. 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 configurable peripherals such as ADC, PWM, timers, and communication interfaces. Within the broader semiconductor hierarchy, the PIC18F26K40 sits in the 8-bit MCU class, beneath 16-bit dsPIC and 32-bit ARM Cortex-M families, and is designed for cost-sensitive, deterministic, low-power embedded control. Key features include a 10-bit ADC with up to 24 channels, a 5-bit DAC, two comparators, multiple PWM/CWG/CCP/SMT modules, a windowed watchdog (WWDT), a CRC/SCAN memory integrity block, and Core Independent Peripherals (CIPs) that offload tasks from the CPU. The device operates across 2.3V to 5.5V, supports the nanoWatt XLP sleep modes, and provides 25 general-purpose I/O pins on this 28-pin variant. Typical applications include consumer appliance control, IoT sensor nodes, low-power wireless remote controls, LED lighting controllers, motor control loops, and battery-powered instrumentation. The combination of 5V tolerance, large memory, and rich analog integration makes the part well suited for both retrofit legacy 5V designs and modern mixed-signal products. When designing with this MCU, allocate the 64 KB Flash carefully between bootloader, application, and configuration words; verify VDDCORE decoupling against the datasheet, and use the dedicated ICSP pins (ICSPCLK/ICSPDAT) for production programming. The ML package has an exposed thermal pad that must be soldered to the ground plane for thermal and electrical performance. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC18F26K40-I/MV

PIC18F26K40-I/MV - 8-Bit 64MHz MCU 64KB Flash 28-UQFN | Microchip

The Microchip PIC18F26K40-I/MV is an 8-bit PIC microcontroller based on the enhanced mid-range PIC18 core running up to 64 MHz, integrating 64 KB of Flash program memory, 4 KB of RAM, and 256 bytes of EEPROM in a 28-pin UQFN (MV) 4x4 mm package. It operates from 2.3 V to 5.5 V with XLP (eXtreme Low Power) technology, providing nanowatt sleep currents for battery-friendly designs. What is a PIC18 microcontroller? A PIC18 is Microchip's 8-bit RISC Harvard-architecture microcontroller family belonging to the broader category of microcontrollers (MCU) inside integrated circuits. Microcontrollers sit within the system hierarchy of embedded computing -> MCU -> 8-bit MCU -> PIC18 family, and they integrate CPU, non-volatile program memory, working RAM, EEPROM, ADCs, timers, and communication peripherals onto a single die to replace multi-chip discrete designs. The PIC18 series adds hardware multiply, linear memory, and C-friendly architecture on top of the legacy PIC16 core, while the K40 sub-family specifically adds Core Independent Peripherals (CIPs). Key differentiating features of the PIC18F26K40-I/MV include 10-bit ADC with Computation (ADC2), 5-bit DAC, two comparators, 2 CCP, 3 PWM, Complementary Waveform Generator (CWG), Windowed Watchdog Timer (WWDT), CRC/Memory Scan, Zero-Cross Detect, Hardware CVD (Capacitive Voltage Divider), Peripheral Pin Select (PPS), and 25 I/O pins. The 28-UQFN 4x4 mm package includes an exposed pad for improved thermal performance in space-constrained layouts. The PIC18F26K40 uses Microchip's enhanced mid-range core with a hardware 8x8 multiplier, 31-level hardware stack, and a vectored interrupt controller. The XLP technology provides typical sleep currents below 50 nA with RTC and below 100 nA with Watchdog Timer active, enabling years of battery life on coin cells. Typical applications include IoT sensor nodes, low-power battery-powered measurement, capacitive touch user interfaces (via Hardware CVD), LED lighting and signage control, appliance control boards, USB-to-UART bridge co-processors, automotive body electronics, and general-purpose 5V embedded control. The wide 2.3 V to 5.5 V range allows direct operation from a single Li-ion cell or a regulated 5V rail. Designers should pair this MCU with a 100 nF decoupling capacitor on each VDD pin plus a bulk 10 uF capacitor at the regulator. The PPS peripheral allows remapping of digital I/O functions to pins after PCB layout, which simplifies routing but requires that the PPSLOCK register be unlocked only during configuration changes. This page synthesizes distributor pricing, drop-in alternatives from the same PIC18F K40 family, and practical design notes not found in the manufacturer datasheet.

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PIC18F26K40-I/SO

PIC18F26K40-I/SO - 64KB Flash 8-bit MCU, 28-SOIC | Microchip

The Microchip Technology PIC18F26K40-I/SO is an 8-bit PIC microcontroller from the PIC18 K40 family, featuring 64KB Flash program memory, 4KB SRAM, 256B EEPROM, and a 64MHz internal oscillator core housed in a 28-pin SOIC (SO) package. It integrates rich Core Independent Peripherals (CIPs) including CWG, WWDT, CRC/SCAN memory scanner, 10-bit ADC2 with computation, 5-bit DAC, multiple comparators, CCP and PWM modules, and supports eXtreme Low Power (XLP) operation across a wide 1.8V-5.5V supply range. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (Flash), data memory (RAM), non-volatile EEPROM, and multiple I/O peripherals. Within the broader semiconductor taxonomy, MCUs are classified as embedded processors under microcontrollers, and the PIC18 family is Microchip's mid-range 8-bit architecture optimized for cost-effective deterministic control. The PIC18F26K40 specifically targets general-purpose applications needing large memory and rich analog/peripheral integration in a small footprint. Key features of the PIC18F26K40 include 25-channel 10-bit ADC, multiple communication peripherals (I2C, SPI, UART with LIN), 36 I/O pins, hardware 5-bit DAC, dual comparators, and on-chip 32kHz oscillator for low-power RTC-style operation. Its XLP technology delivers nanoWatt sleep currents suitable for battery-powered edge devices, while the 64MHz core (16 MIPS) handles real-time control loops and serial protocol stacks with deterministic interrupt latency. The device utilizes an enhanced Harvard architecture with 16-bit instruction width and an 8-bit data path, supported by Microchip's MPLAB X IDE and XC8 compiler. The 28-SOIC package provides industry-standard pin compatibility with previous PIC18 K-series devices and supports hand-soldering or reflow for prototypes and production runs. Typical applications include industrial sensor conditioning, IoT sensor nodes, home appliances, motor control auxiliary boards, battery management secondary supervision, and low-power metering. When laying out a board with the PIC18F26K40, ensure decoupling caps are within 5mm of VDD pins, route the ICSP clock/data pair as a short guarded pair, and observe the 1.8V minimum supply during ADC reference calibration for specified linearity.

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PIC18F26K40-I/SS

PIC18F26K40-I/SS - 8-Bit 64MHz 64KB Flash MCU 28-SSOP | Microchip

The Microchip Technology PIC18F26K40-I/SS is an 8-bit PIC18 family microcontroller integrating a 64 MHz internal CPU (up to 16 MIPS), 64 KB of Flash program memory, 4 KB of SRAM, and 256 bytes of EEPROM, all housed in a 28-pin SSOP (Small-Outline Shrink Small-Outline Package) specified across the -40°C to +85°C industrial temperature range under the -I operating suffix and carrying Microchip's PIC XLP 18K branding. What is an 8-bit PIC microcontroller? An 8-bit MCU (microcontroller) is a single-chip computer with an 8-bit data path that integrates CPU, non-volatile program memory (Flash), working RAM, EEPROM, and a set of on-chip peripherals (ADC, timers, PWM, communication ports). The PIC18 family is Microchip's high-end 8-bit line, sitting at the top of the 8-bit hierarchy (PIC10/12/16/18) and below the 16-bit dsPIC/PIC24 and 32-bit PIC32 families. The PIC18FxxK40 sub-family adds Core Independent Peripherals (CIPs) - hardware blocks that operate without CPU intervention - which is the primary design differentiator versus older PIC18FxxK20/K22 parts. Key features include a 10-bit ADC with up to 35 channels, a 5-bit DAC, two comparators with 9-bit references, four 10-bit PWM outputs, three CCP modules, the Complementary Waveform Generator (CWG), the Hardware Limit Timer (HLT), a windowed watchdog timer (WWDT) and a Cyclic Redundancy Check/Scan (CRC/SCAN) module. The XLP (eXtreme Low-Power) technology supports deep-sleep currents in the nanoampere range, making the part suitable for battery-powered and energy-harvesting designs that must extend operating life between cell replacements. Architecturally, the PIC18F26K40 uses a 16-bit modified Harvard core with separate program and data paths and a hardware multiplier, giving a sustained 16 MIPS throughput at 64 MHz. Peripherals are interconnected via Microchip's PPS (Peripheral Pin Select) routing fabric, which allows most digital I/O and analog functions to be remapped to a wide choice of pins - significantly simplifying PCB layout versus fixed-pin PIC18 predecessors. Typical applications include home appliances, industrial control panels, IoT sensor nodes, LED lighting controllers, battery-powered metering, low-cost motor control, and consumer electronics that require a generous mix of analog and digital peripherals in a small 28-pin outline. The wide 2.3 V-5.5 V supply range also supports 5 V-tolerant industrial backplanes. Designers should note that the I-suffix denotes the industrial -40°C to +85°C operating range, while an E-suffix indicates -40°C to +125°C. The /SS package suffix denotes SSOP-28; the PIC18F26K40 is also available in /SO (SOIC-28), /SP (SPDIP-28), /ML (QFN-28) and /MV (UQFN-28) packages from the same die. This page synthesizes distributor pricing, drop-in alternatives in the same 28-SSOP footprint and practical design notes not present in the standalone datasheet, enabling side-by-side comparison against PIC18F25K40, PIC18F25K42, PIC18F25Q43 and newer PIC18F26K83 family devices.

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PIC18F26K40T-E/MLVAO

PIC18F26K40T-E/MLVAO - 64KB Flash, 28-QFN 8-bit MCU | Microchip

The Microchip Technology PIC18F26K40T-E/MLVAO is an 8-bit PIC18 microcontroller with 64KB Flash, 4KB RAM, and 1KB EEPROM, operating at up to 64 MHz, housed in a 28-pin QFN (6x6 mm) package with exposed pad. It integrates rich analog peripherals including a 10-bit ADC with Computation (ADC2), 5-bit DAC, comparators, and Core Independent Peripherals such as CWG, WWDT, and CRC/Scan. The device supports XLP (eXtreme Low Power) operation and 5V supply, suitable for general-purpose embedded applications. An 8-bit microcontroller (MCU) is a programmable integrated circuit that combines a CPU, memory (Flash for program storage, SRAM for data, EEPROM for non-volatile data), and peripherals (ADC, timers, communication interfaces) on a single silicon die. MCUs belong to the broader category of microcontrollers, which are a sub-category of embedded processors within the semiconductor device hierarchy. PIC18F-series MCUs use a modified Harvard architecture with 16-bit instructions and 8-bit data paths, optimized for deterministic real-time control and low-power operation. Key features include 64 MHz internal oscillator operation, 36 instruction cycles per ADC conversion, peripheral pin select (PPS) for flexible I/O mapping, and zero-cross detection capability. The device offers eXtreme Low Power (XLP) technology with sub-µA sleep currents, making it suitable for battery-powered applications. It also provides hardware CRC with memory scan, Windowed Watchdog Timer (WWDT), and 2x CWG (Complementary Waveform Generator) for power conversion control. The PIC18F26K40T-E/MLVAO belongs to the K40 sub-family of PIC18F devices, which emphasizes Core Independent Peripherals (CIPs) that can operate without CPU intervention, offloading tasks like signal generation, motion control, and safety monitoring. CIPs reduce firmware complexity and enable deterministic real-time responses. The device uses a 5V-tolerant I/O structure and supports a wide operating voltage range from 1.8V to 5.5V, accommodating both 3.3V and 5V system designs. Typical applications include IoT sensor nodes, industrial control systems, motor control, LED lighting controllers, and consumer electronics. In IoT nodes, the XLP sleep current below 50 nA enables multi-year battery life on a single coin cell. For motor control, the CWG and PWM peripherals can drive half-bridges with dead-band control without CPU intervention, reducing firmware overhead. Design consideration: The exposed pad (EP) on the QFN package must be soldered to the PCB ground plane to achieve the rated thermal performance. Improper soldering of the EP can lead to junction temperature rise and premature device failure under load. PPS reassignment should be carefully managed to avoid conflicts with default peripheral mappings. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC18F26K40T-E/SSVAO

PIC18F26K40T-E/SSVAO - 64KB Flash 8-bit MCU, Automotive | Microchip

The Microchip Technology PIC18F26K40T-E/SSVAO is a 28-pin SSOP-packaged 8-bit PIC18 microcontroller with 64KB Flash, 4KB RAM, and 1KB EEPROM, qualified to the automotive AEC-Q100 standard. It integrates a 10-bit ADC with Computation (ADC2), a 5-bit DAC, comparators, PWM, CWG, HLT, WWDT, and CRC/Scan peripherals in a single low-power XLP device. The "T" suffix denotes tape-and-reel packaging and the "E" denotes the extended automotive temperature grade of -40C to +125C. An 8-bit microcontroller (MCU) is a microprocessor integrated with Flash program memory, RAM, EEPROM, and digital/analog peripherals on one CMOS die. The PIC18F family uses Microchip's enhanced RISC architecture and is positioned in the broader PIC microcontroller hierarchy as PIC10/12/16/18 -> 8-bit MCU -> microcontroller -> embedded processor. The "F" indicates Flash program memory and "K40" identifies the family's specific peripheral set within the XLP (eXtreme Low Power) product line targeting battery-friendly applications. Key features include a 64MHz internal oscillator, 36 instructions with 8-bit data path, 1024 bytes of data EEPROM, and 4KB SRAM. Core-Independent Peripherals such as Configurable Logic Cells, Complementary Waveform Generator, Windowed Watchdog Timer, and Cyclic Redundancy Check enable offloading of tasks from the CPU. The 10-bit ADC with computation automates signal averaging, oversampling, and threshold comparisons. Typical applications include automotive body electronics (BCM, lighting, HVAC actuators), sensor signal conditioning, IO-Link sensor nodes, low-power industrial controllers, and battery-powered IoT end-nodes. AEC-Q100 Grade 1 qualification makes this part the preferred choice when the design must operate reliably across the full automotive temperature range and survive stringent EMC and ESD requirements. When designing with this device, allocate the SSOP-28 PCB land pattern carefully and observe the recommended decoupling capacitor placement near VDD pins. Use the ICD 3 or Curiosity HPC development board with MPLAB X IDE for code development; the device is supported by the free MPLAB XC8 compiler. This page synthesizes distributor pricing, AEC-Q100 automotive-grade alternatives, and practical SSOP-28 design notes not consolidated in the manufacturer datasheet alone.

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PIC18F26K40T-I/SS

PIC18F26K40T-I/SS - 64KB Flash 8-Bit MCU | Microchip

The Microchip Technology PIC18F26K40T-I/SS is an 8-bit PIC microcontroller from the PIC18 XLP family operating at up to 64 MHz, with 64 KB of Flash program memory, 1 KB of EEPROM, and approximately 3.6 KB of SRAM, housed in a 28-pin SSOP package. It combines large memory, Core Independent Peripherals (CIPs) and eXtreme Low Power (XLP) technology to suit a wide variety of 8-bit general-purpose applications. A PIC microcontroller is a compact CMOS microcontroller based on Microchip's PIC18 Harvard-architecture RISC core, used as a complete embedded controller that combines CPU, non-volatile Flash, RAM, EEPROM, and configurable peripherals on a single die. It belongs to the hierarchy: microcontroller -> embedded MCU -> 8-bit MCU -> PIC18 -> PIC18 XLP family, and is widely adopted for cost-sensitive, low-power, and deterministic real-time applications. Key features include 25 general-purpose I/O pins, a 10-bit ADC with up to 47 channels, multiple Enhanced USART, SPI, and I2C serial interfaces, up to four 10-bit PWM outputs, a 5-bit DAC, comparators, a Complementary Waveform Generator (CWG), Hardware Limit Timer (HLT), Windowed Watchdog Timer (WWDT), and a CRC/SCAN module. Operating voltage spans 2.3 V to 5.5 V with nanoWatt XLP sleep currents, enabling battery-powered designs with long standby time. Architecturally the PIC18F26K40 uses a 16-bit instruction word with an 8-bit data path, a hardware multiply, a 31-level stack, and a flexible internal oscillator block with PLL (up to 64 MHz). Core Independent Peripherals such as CWG, WWDT, and CRC operate without CPU intervention, freeing the core for application logic and improving deterministic response. Typical applications include consumer appliances, IoT sensor nodes, low-power wireless sensor hubs, industrial control boards, motor-control companion MCUs, USB HID interfaces, and general-purpose embedded platforms where 64 KB Flash and SSOP-28 footprint are required. The wide 2.3V-5.5V range and on-chip peripherals reduce external component count. When designing with this device, ensure VDD decoupling follows the manufacturer's 100 nF + bulk capacitor guidance, place analog/digital grounds correctly, and use ICSP programming header keep-out for in-circuit debugging. Migrate firmware using MPLAB X IDE with the XC8 compiler and MCC code configurator for peripheral setup. This page combines distributor pricing, drop-in alternatives, and design notes that go beyond the manufacturer brief, helping engineers quickly decide whether PIC18F26K40T-I/SS is the right 8-bit MCU for their next design.

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PIC18F26K42-E/MX

PIC18F26K42-E/MX - 8-Bit 64MHz MCU, 64KB Flash | Microchip

The Microchip Technology PIC18F26K42-E/MX is an 8-bit PIC18 XLP microcontroller with 64KB Flash, 4KB RAM and 1KB EEPROM, housed in a 28-pin UQFN 6x6mm package with an industrial -40C to +125C operating range. It executes instructions at up to 64MHz, integrates a 12-bit ADC with Computation (ADC2), a 5-bit DAC, multiple comparators, DMA, vector interrupts, and a Core Independent Peripherals (CIP) block including CWG, PWM, SMT and CCP. The -E temperature suffix denotes the extended industrial grade, while the /MX package code identifies the lead-free 28-UQFN 6x6mm option. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (SRAM), non-volatile storage (EEPROM), and a rich set of peripheral interfaces into one IC. Within the broader taxonomy it sits as: PIC18 core -> 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. Microchip's PIC18 architecture uses an enhanced RISC instruction set with hardware multiplier, 31-level stack, and C-friendly addressing, sitting between simpler PIC16 parts and the 16-bit dsPIC/PIC24 families. Key features include 25mA source/sink per I/O, a 4x Direct Memory Access controller that offloads data movement between peripherals and memory, vectored interrupts for deterministic latency, and Microchip's eXtreme Low Power (XLP) technology with deep-sleep currents measured in nanoamps. The CIP block lets designers build state machines, waveform generation, and signal conditioning without CPU intervention, freeing the core for application code. CRC/Scan, windowed watchdog, and a 32kHz low-power oscillator round out the safety and clocking features. Typical applications include industrial sensor nodes, IoT edge devices, low-power battery-powered instrumentation, motor control (BLDC, stepper) using the PWM/CWG/CCP trio, touch/Proximity UI with the analog helper peripherals, and home appliances requiring long battery life and field-upgradable firmware. Designers use the MPLAB X IDE with the free XC8 compiler; code is debugged via ICD4 or PKOB4. The same K42 family offers 40/44/48-pin variants, allowing seamless migration when extra I/O is needed.

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PIC18F26K42-E/SO

PIC18F26K42-E/SO - 64KB Flash 8-bit XLP MCU 28-SOIC | Microchip

The Microchip Technology PIC18F26K42-E/SO is an 8-bit PIC® XLP™ microcontroller delivering 64 MHz CPU performance, 64 KB Flash, 4 KB SRAM and 1 KB EEPROM in a 28-pin SOIC package. It integrates core-independent peripherals (CIPs) such as a 12-bit ADC with Computation (ADC2), a 5-bit DAC, comparators, PWM, CWG, and DMA, giving designers a high degree of functional integration without CPU involvement. An 8-bit microcontroller (MCU) is a small computer-on-a-chip built around an 8-bit data bus and Harvard architecture. PIC18F-series parts sit in Microchip's mid-range 8-bit portfolio, hierarchically classified as MCU -> 8-bit MCU -> PIC18 -> PIC18FxxK42 family. They typically serve low-power, mixed-signal embedded roles where deterministic behavior, long battery life, and rich on-chip peripherals outweigh raw compute throughput. Key features of the PIC18F26K42 include XLP (eXtreme Low Power) technology with nanoWatt sleep currents, hardware CVD for capacitive touch sensing, vector interrupts with two-level priority, and a Memory Access Partition (MAP) feature for bootloader write protection. The device supports an operating voltage range of 2.3 V to 5.5 V and is qualified for the extended -40 °C to +125 °C industrial temperature range (E suffix). The integrated charge pump allows ADC operation below 1.5 V, broadening battery-powered use cases. Architecturally, the PIC18F26K42 uses an enhanced Harvard core with a modified RISC instruction set, hardware multiply, and a C-compiler-friendly instruction set. Core-independent peripherals (CLC, NCO, PWM, CWG) can run without the CPU, enabling deterministic timing in motor control, lighting, and sensor signal-conditioning designs while the CPU remains in sleep, drawing only nanoWatt-level currents. Typical applications include IoT sensor nodes, capacitive touch user interfaces, low-power wireless sensor platforms, building automation, battery chargers, and small BLDC/PMSM motor control. It is also well suited as a companion MCU to a Wi-Fi/BLE module (e.g., Microchip RN4870 or external ESP32) for command translation in connected products. When designing with this part, ensure that the ICSP/ICD pins (PGx, PGCx) are not loaded down by external circuitry that would prevent in-circuit programming or debugging. Decoupling should follow Microchip's AN583 recommendation: one 100 nF per VDD pin and a bulk 10 µF near the regulator. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, organized for engineers who need a quick, citable comparison across the PIC18 K-series portfolio.

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PIC18F26K42-I/MX

PIC18F26K42-I/MX - 8-Bit 64MHz 64KB Flash MCU | Microchip XLP 18K

The Microchip Technology PIC18F26K42-I/MX is an 8-bit PIC18 microcontroller from the XLP (eXtreme Low Power) 18K family, delivering 64 MIPS performance at 64 MHz from a 64 KB Flash program store in a compact 28-pin UQFN (6x6 mm) package. The part integrates core-independent peripherals (CIPs) such as CLC, PWM, UART/SPI/I2C and a 12-bit ADC with computation (ADC2), making it well-suited for real-time control loops without CPU intervention. A microcontroller (MCU) is a single-chip computer that combines a CPU core, program memory, RAM, EEPROM and a wide set of peripheral interfaces in one IC. The PIC18 family is Microchip's mid-range 8-bit architecture, sitting between baseline PIC10/12/16 and 16-bit PIC24/dsPIC parts. Within that hierarchy, the K42 sub-family adds aggressive low-power modes (XLP technology with nanoWatt sleep), richer CIP analog and timing blocks, and substantially larger memory than its K22/K20 predecessors, while retaining instruction-set compatibility with legacy PIC18 code. Key headline specifications include 64 KB (64K x 8) Flash, 4 KB SRAM and 1 KB EEPROM, an internal 64 MHz oscillator with PLL, a 12-bit ADC with up to 35 external channels and hardware post-processing, up to four 16-bit PWM outputs, two I2C/SPI and two UART modules, and a wide 2.3 V to 5.5 V operating supply range with active current below 200 µA/MHz. CIPs such as CLCs (Configurable Logic Cells), DSM, NCO and zero-cross detection let designers implement mixed-signal glue logic in hardware, offloading the CPU. The device targets applications that demand deterministic 8-bit control with strict energy budgets: battery-powered IoT nodes, sensor signal conditioning, BLDC/PMSM fan and pump control, household appliances, low-cost medical peripherals, USB-HID bridges (via MSSP/USB bridges), lighting ballasts, and automotive body/comfort subsystems (using Q-grade variants). When routing PCB, place a 100 nF decoupling capacitor within 2 mm of every VDD/AVDD pin and a 1 µF bulk capacitor near the MCU, keep the analog AVSS/AGND star-ground separate from digital GND, and reserve the ICSP programming header footprint for production-line flashing. For sleep-mode designs, confirm all CIPs can still trigger wake-up events before locking down the firmware.

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PIC18F26K42-I/SO

PIC18F26K42-I/SO - 64KB Flash 8-bit MCU 28-SOIC | Microchip

The Microchip Technology PIC18F26K42-I/SO is an 8-bit PIC18 microcontroller featuring 64KB of Flash program memory, 4KB of RAM, 1KB of EEPROM, and a 64MHz internal oscillator housed in a 28-pin SOIC (300 mil) package with XLP (eXtreme Low-Power) technology. It operates across a 2.3V to 5.5V supply range and integrates rich core-independent peripherals (CIPs) such as Configurable Logic Cells (CLC), Complementary Waveform Generator (CWG), Numerically Controlled Oscillator (NCO) and Direct Memory Access (DMA), allowing hardware-based state-machine operation without CPU intervention. A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (typically Flash), volatile data memory (RAM), and a configurable set of digital and analog peripherals on a single die. PIC18 microcontrollers use an 8-bit modified Harvard RISC architecture with a 16-bit instruction word, balancing code density against throughput at clock rates up to 64MHz. The K42 family advances this architecture with up to 15 PPS (Peripheral Pin Select) remappable I/O, enabling flexible PCB layout and reduced trace congestion. Key specifications of the PIC18F26K42-I/SO include 24 ADC channels with 12-bit resolution and up to 100 ksps conversion rate, two I2C/SPI/I2S-capable MSSP peripherals, two UART modules with LIN/IrDA support, a 10-bit PWM with multiple complementary outputs, and 25 general-purpose I/O pins. The device also features a 5-bit DAC, four 8-bit timers and four 16-bit timers, plus a windowed watchdog timer for safety-critical applications. The PIC18F26K42 family is built on Microchip's enhanced mid-range core with a 16-bit instruction path, hardware multiplier, and 32-level stack, supporting C-compiled code from MPLAB XC8. XLP technology delivers nanoWatt sleep currents below 50 nA, making the part well suited to battery-powered sensor nodes. According to the Microchip datasheet, the device achieves typical active current of 1.4 mA at 4 MHz and idle mode current under 1 µA. Typical applications include industrial sensor conditioning, building automation, low-power IoT edge nodes, consumer appliance control, USB-to-UART bridges, and small motor drives via the CWG and PWM peripherals. The wide 2.3V-5.5V supply range allows direct Li-ion battery or USB-bus operation without additional regulators. When designing with this device, ensure the MSSP peripherals are configured for the desired SPI/I2C mode before assigning pin functions through PPS. Use the on-board 64MHz HFINTOSC or an external crystal for time-critical peripherals such as UART or PWM. 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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PIC18F26K22-E/SP - 64KB Flash 8-bit MCU, SPDIP-28 | Microchip

PIC18F26K22-E/SS - 8-Bit 64KB Flash MCU, 28-SSOP | Microchip

PIC18F26K22-I/ML - 8-Bit XLP MCU, 64KB Flash, 28-QFN | Microchip

PIC18F26K22-I/SO - 8-bit XLP MCU, 64KB Flash, 28-SOIC | Microchip

PIC18F26K22-I/SP - 64KB Flash 8-Bit XLP MCU 28-SPDIP | Microchip

PIC18F26K22-I/SS - 8-Bit 64MHz 64KB Flash MCU | Microchip

PIC18F26K22T-I/ML - 64MHz 8-bit MCU 64KB Flash | Microchip

PIC18F26K22T-I/SO - 8-bit 64MHz 64KB Flash XLP MCU | Microchip

PIC18F26K40-E/ML - 8-Bit 64MHz 64KB Flash MCU | Microchip

PIC18F26K40-E/MLVAO - 8-bit MCU, 64KB Flash, 28-QFN | Microchip

PIC18F26K40-E/MV - 64KB Flash 8-bit MCU | Microchip XLP

PIC18F26K40-E/SO - 64KB Flash 8-bit MCU, 64MHz | Microchip

PIC18F26K40-E/SS - 64KB Flash 8-bit MCU, 28-SSOP | Microchip

PIC18F26K40-I/ML - 64KB Flash 8-bit MCU 28-QFN | Microchip

PIC18F26K40-I/MV - 8-Bit 64MHz MCU 64KB Flash 28-UQFN | Microchip

PIC18F26K40-I/SO - 64KB Flash 8-bit MCU, 28-SOIC | Microchip

PIC18F26K40-I/SS - 8-Bit 64MHz 64KB Flash MCU 28-SSOP | Microchip

PIC18F26K40T-E/MLVAO - 64KB Flash, 28-QFN 8-bit MCU | Microchip

PIC18F26K40T-E/SSVAO - 64KB Flash 8-bit MCU, Automotive | Microchip

PIC18F26K40T-I/SS - 64KB Flash 8-Bit MCU | Microchip

PIC18F26K42-E/MX - 8-Bit 64MHz MCU, 64KB Flash | Microchip

PIC18F26K42-E/SO - 64KB Flash 8-bit XLP MCU 28-SOIC | Microchip

PIC18F26K42-I/MX - 8-Bit 64MHz 64KB Flash MCU | Microchip XLP 18K

PIC18F26K42-I/SO - 64KB Flash 8-bit MCU 28-SOIC | Microchip