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PIC18F25K40-E/SS - 32KB Flash 8-bit MCU, 64MHz, SSOP-28 | Microchip
PIC18F25K40-E/SS

PIC18F25K40-E/SS - 32KB Flash 8-bit MCU, 64MHz, SSOP-28 | Microchip

The Microchip Technology PIC18F25K40-E/SS is an 8-bit RISC PIC microcontroller with 32 KB of Flash program memory, 2 KB of SRAM, and 256 B of EEPROM, running at up to 64 MHz from a 3.0 V to 5.5 V supply, housed in a 28-pin SSOP (5.30 mm body) package. It integrates a 10-bit ADC with Computation (ADC2), a 5-bit DAC, two comparators, two CCP modules, a Complementary Waveform Generator (CWG), Hardware Limit Timer (HLT), Windowed Watchdog Timer (WWDT), and a CRC/SCAN module, all backed by Microchip's XLP eXtreme Low-Power technology. The PIC18F25K40 family combines large memory, rich peripheral integration, and 5 V tolerance to suit a wide variety of general-purpose applications. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, and programmable peripherals. PIC18 microcontrollers use an enhanced Harvard 8-bit RISC architecture with a modified instruction set that balances code density, deterministic interrupt latency, and C-compiler efficiency, and they sit within Microchip's broader taxonomy of 8-bit PIC microcontrollers, which feed into embedded controllers, microprocessors, and finally the broader category of semiconductors. Microchip's PIC18 "K40" family is positioned as a peripheral-rich, low-power upgrade path from earlier PIC18F "K20" and "K22" devices. Key features of the PIC18F25K40-E/SS include 25 I/O pins, nine timers (three 16-bit timer/counters and six 8-bit), two 10-bit PWM channels, two analog comparators with selectable reference, and a peripheral pin-select (PPS) engine that maps digital peripherals to a wide range of pins. The ADC2 (10-bit) block features automatic accumulation, averaging, low-pass filtering, threshold comparison, and oversampling, allowing autonomous signal conditioning without CPU intervention. The CWG, HLT, WWDT, and CRC/SCAN modules are "Core Independent Peripherals" that offload motor control, fault handling, and memory-integrity tasks from the core. Architecturally, the PIC18F25K40 uses a 16-bit instruction word and an 8-bit data path with a hardware multiplier, allowing efficient C compilation through MPLAB XC8 while preserving deterministic timing. The device supports on-chip debugging via Microchip's ICD (in-circuit debugger) interface and is fully supported by MPLAB X IDE, MCC code generator, and SEGGER J-Link emulators. Typical applications include consumer appliances, building automation, low-power IoT sensor nodes, white goods and motor-control interfaces, USB-to-UART bridges (when paired with a USB-capable sibling), and industrial control boards that need deterministic 8-bit performance with strong peripheral integration. When designing with the PIC18F25K40-E/SS, allocate ADC2 and CWG channels carefully because several analog and digital peripherals share pins via PPS. Verify the minimum operating voltage for the chosen oscillator mode (HF INTOSC supports down to 2.3 V) before committing to a 3.3 V-only rail. 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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PIC18F25K40-E/SSVAO - 32KB Flash, 8-bit MCU, AEC-Q100, 28-SSOP | Microchip
PIC18F25K40-E/SSVAO

PIC18F25K40-E/SSVAO - 32KB Flash, 8-bit MCU, AEC-Q100, 28-SSOP | Microchip

The Microchip Technology PIC18F25K40-E/SSVAO is an AEC-Q100 qualified 8-bit PIC microcontroller with 32KB Flash program memory and 2KB SRAM, housed in a 28-pin SSOP (Wide) package. It operates up to 64MHz from a 2.3V-5.5V supply and integrates Core Independent Peripherals (CIPs) including CWG, WWDT, CRC/SCAN, 10-bit ADC with Computation, 5-bit DAC, and 16-bit PWM. An 8-bit PIC microcontroller is a Harvard-architecture RISC processor with separate program and data buses, optimized for deterministic real-time control. The PIC18 family extends the classic PIC16 instruction set with 16-bit instructions, an extended RAM bank, and C-friendly compiler support (XC8). Within the broader taxonomy: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. The 'F' prefix denotes Flash memory; the 'K40' sub-family adds Core Independent Peripherals for hardware-driven state machines. Key features include 25 digital I/O pins, four 16-bit timers, two CCP modules, two comparators, one 5-bit DAC, one 10-bit ADC with up to 24 channels and Computation modes, two I2C/SPI/EART peripherals, and a Windowed Watchdog Timer (WWDT). The device also embeds eXtreme Low Power (XLP) technology with nanoWatt XLP sleep currents, supporting battery-powered applications. Technically, the PIC18F25K40 uses a modified Harvard core with a 16-bit instruction word and 8-bit data path. Its CIP block allows PWM, waveform generation, and signal conditioning to run without CPU intervention, offloading the 8-bit core for application logic. The 10-bit ADC with Computation (ADCC) automates averaging, threshold comparison, and accumulator functions, reducing firmware burden for sensor sampling loops. Typical applications include automotive body electronics, sensor signal conditioning, LED lighting control, low-power IoT sensor nodes, and human-machine interface (HMI) subsystems. The AEC-Q100 grade makes the /SSVAO suffix specifically suited to vehicle environments requiring -40C to +125C operation and PPAP documentation. When designing with this device, allocate pin budget carefully: 25 I/O is reduced by the analog and debug allocations. Use the ADCC for sensor averaging to free CPU cycles, and leverage the WWDT and CRC/SCAN peripherals for functional safety without software overhead. This page synthesizes verified distributor pricing, AEC-Q100 qualification notes, drop-in PIC18 alternatives, and practical design notes not consolidated on the manufacturer product page.

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PIC18F25K40-I/SP - 8-bit 64MHz MCU, 32KB Flash, 28-SPDIP
PIC18F25K40-I/SP

PIC18F25K40-I/SP - 8-bit 64MHz MCU, 32KB Flash, 28-SPDIP

The Microchip Technology PIC18F25K40-I/SP is an 8-bit PIC microcontroller from the PIC18F "K40" family operating at up to 64 MHz with 32 KB of Flash program memory, 2 KB of SRAM, and 256 bytes of EEPROM, housed in a 28-pin SPDIP (Skinny Plastic DIP) through-hole package. It integrates a 10-bit ADC with Computation (ADC2), a 5-bit DAC, comparators, PWM, CCP, CWG, HLT, WWDT, and SCAN/CRC peripherals, enabling Core Independent Peripherals (CIP) operation that offloads tasks from the CPU. A microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, non-volatile program memory (Flash/ROM), and I/O peripherals. Microcontrollers in the PIC18F family target the upper end of the 8-bit MCU market, blending C-compiler-optimized RISC architecture with rich peripheral integration, eXtreme Low Power (XLP) technology, and 5V support to suit a broad range of general-purpose embedded applications. The PIC18F25K40 belongs to the "high-performance" 8-bit MCU hierarchy: PIC18F > PIC18Fx K40 sub-family > Microchip 8-bit MCU > embedded controller > semiconductor. Key features include 25 I/O pins, two 16-bit timers, a Windowed Watchdog Timer (WWDT) with a separate on-chip oscillator for safety-critical applications, an 8 MHz internal oscillator and 32 kHz secondary oscillator for low-power modes, plus eXtreme Low Power (XLP) sleep currents suitable for battery-powered designs. The ADC2 block supports hardware averaging, threshold comparisons, and automated scanning without CPU intervention. Architecturally, the PIC18F25K40 uses the enhanced PIC18 Harvard architecture (C compiler optimized RISC with 16-bit instructions and 8-bit data) with an 8-deep hardware stack and interrupt priority levels. The internal oscillator supports PLL multiplication to 64 MHz, eliminating the need for an external crystal in cost-sensitive designs. CRC/Scan and Windowed WDT support IEC 60730 / Class B safety compliance for home appliance and industrial products. Typical applications include appliance control (washing machines, microwave ovens, coffee makers), industrial sensor hubs, automotive body and lighting subsystems, IoT edge nodes, low-power metering, and consumer devices that benefit from CIP-driven peripheral operation. The wide 2.3V-5.5V operating range and XLP technology also support battery-backed and energy-harvesting designs. Design consideration: When migrating code from PIC18F25K22 to PIC18F25K40, verify that the enhanced peripheral mapping (ADC2, CWG, HLT) is properly configured and that interrupt vector reassignments are applied. The PIC18F25K40 supports both "Legacy" and "Enhanced" mid-range compatibility modes for smoother migration paths from older families. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, helping procurement engineers and firmware developers evaluate the PIC18F25K40-I/SP for next-generation designs.

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PIC18F25K40-I/SS - 32KB Flash 8-bit MCU | Microchip | XLP
PIC18F25K40-I/SS

PIC18F25K40-I/SS - 32KB Flash 8-bit MCU | Microchip | XLP

The Microchip Technology PIC18F25K40-I/SS is a 64 MHz 8-bit PIC18 microcontroller with 32 KB Flash, 2 KB SRAM, and 256 B EEPROM in a 28-pin SSOP package. It combines Core Independent Peripherals (CIPs) such as CWG, WWDT, CRC/Memory Scan, Hardware CVD, and Zero-Cross Detect with the eXtreme Low Power (XLP) feature set and a wide 2.5V–5.5V operating range, making it well suited to general-purpose embedded designs that need long battery life or robust 5V tolerance. According to the Microchip datasheet, the device supports up to 25 MIPS performance at 64 MHz while consuming only a few microamperes in Sleep. What is a PIC18 microcontroller? A PIC18 (or PIC18F) is an 8-bit RISC microcontroller family from Microchip that sits within the broader 8-bit MCU taxonomy: MCU → 8-bit MCU → PIC architecture → PIC18F family. It is widely used in mixed-signal embedded designs because it integrates analog peripherals, communications hardware, and CIPs into a single chip, reducing BOM cost and PCB area. The K40 sub-family specifically targets ultra-low-power applications that previously required dedicated XLP silicon, while adding modern CIPs that free the CPU from interrupt-driven housekeeping. Key features of the PIC18F25K40-I/SS include: 32 KB self-programmable Flash with device firmware upgrade (DFU) capability, 2 KB SRAM, 256 B EEPROM, 24 digital I/O pins with Peripheral Pin Select (PPS) for flexible signal routing, an integrated 10-bit ADC with computation, a 5-bit DAC, up to four 10-bit PWM outputs, three timers, and serial interfaces including UART, SPI, and I2C. The SSOP-28 (5.30 mm body) footprint is RoHS-compliant and uses a tube or tape-and-reel packing system compatible with industry-standard pick-and-place lines. Architecturally, the part uses a modified Harvard RISC core with a hardware multiplier and 49-instruction base set. The CIPs (CWG, NCO, CLC, CRC/SCAN) can operate while the CPU is in Sleep, enabling sensor monitoring and signal generation without waking the core. This greatly simplifies event-driven firmware and reduces power consumption on battery-powered nodes such as IoT end devices, remote controls, and metering sensors. Typical applications include ultra-low-power wireless sensor nodes, battery-powered IoT end devices, home appliance user interfaces, motor-control subsystems (PWM + CWG + CCP), consumer electronics with capacitive touch (Hardware CVD), LED lighting controllers, and general-purpose 5V industrial controls. The wide Vdd range (2.5V–5.5V) also allows direct connection to 5V sensor or bus systems without level shifters. Design consideration: enable the WWDT and CRC/SCAN peripherals on safety-critical nodes to detect firmware corruption and recover gracefully. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC18F25K40-I/SSVAO - 32KB Flash 8-bit MCU | Microchip Automotive
PIC18F25K40-I/SSVAO

PIC18F25K40-I/SSVAO - 32KB Flash 8-bit MCU | Microchip Automotive

The Microchip Technology PIC18F25K40-I/SSVAO is an 8-bit PIC microcontroller featuring 32KB of Flash program memory, 2KB of RAM, and 256 bytes of EEPROM, housed in a 28-pin SSOP package with 5.30 mm body width and qualified to the AEC-Q100 automotive standard. Operating from 2.3V to 5.5V with on-chip core independent peripherals, this part delivers up to 64 MHz CPU performance while supporting the eXtreme Low Power (XLP) sleep modes that keep active current under a few hundred microamps. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, integrating a CPU, non-volatile Flash program memory, volatile SRAM, EEPROM, and a fixed set of analog and digital peripherals on one die. Within the semiconductor hierarchy, an MCU belongs to the microcontroller class of integrated circuits, which sits under the broader category of embedded processors and microcontrollers, and ultimately under the umbrella of power management and signal processing semiconductors. The PIC18 family specifically uses a 16-bit modified Harvard instruction set with an 8-bit data bus, balancing code density, deterministic timing, and ease of use. Key features of the PIC18F25K40 family include 32KB Flash, 2KB SRAM, 256 bytes EEPROM, 25 I/O pins, a 10-bit ADC with up to 35 channels, two comparators, two PWM modules, and Core Independent Peripherals such as the Complementary Waveform Generator (CWG), Windowed Watchdog Timer (WWDT), and CRC/SCAN memory verification. The device supports UART, SPI, I2C, and up to four hardware timer modules. Typical applications for this automotive-qualified PIC18F25K40-I/SSVAO include automotive body controllers, sensor signal conditioning nodes, HVAC actuators, low-power remote sensor interfaces, and general-purpose industrial control. The combination of 5V tolerance, 32KB code space, and AEC-Q100 grade makes it well suited to 12V automotive subsystems that demand high reliability. When designing with this MCU, verify the SSOP-28 land pattern matches your PCB footprint and confirm the -I (industrial, -40C to +85C) and -VAO suffix ratings align with your application's thermal and qualification requirements.

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PIC18F25K40T-I/ML - 8-Bit 64MHz XLP MCU 32KB Flash | Microchip
PIC18F25K40T-I/ML

PIC18F25K40T-I/ML - 8-Bit 64MHz XLP MCU 32KB Flash | Microchip

The Microchip PIC18F25K40T-I/ML is an 8-bit PIC microcontroller from the PIC18 XLP 18K family, delivering up to 64 MHz CPU performance with 32 KB Flash, 2048 bytes RAM and 256 bytes EEPROM, all housed in a 28-pin QFN (6x6 mm) package with exposed thermal pad. The trailing 'T' in the MPN denotes Tape & Reel packaging, while the 'I' suffix indicates the industrial -40C to +85C operating temperature grade. Core Independent Peripherals (CIPs) such as CWG, WWDT and CRC/SCAN are integrated to offload timing-critical tasks from the CPU. An 8-bit PIC microcontroller (MCU) is a Harvard-architecture microcontroller that executes instructions on 8-bit data paths and integrates Flash program memory, SRAM, peripherals and an oscillator into a single chip. Within the broader taxonomy, the PIC18F family sits between the lower-pin PIC16F series and the higher-performance dsPIC33/PIC24 families, and is part of Microchip's eXtreme Low Power (XLP) portfolio that targets battery-friendly designs with sub-uA sleep currents and nanoWatt technology. Key differentiating specifications include 25 I/O pins, an internal 64 MHz oscillator, support for up to 1024 bytes of data EEPROM emulation in Flash, and 5V-tolerant digital I/O. The device family integrates CIP blocks like a Configurable Logic Cell (CLC), Complementary Waveform Generator (CWG) and Windowed Watchdog Timer (WWDT), which let hardware react to events without waking the CPU - a hallmark of the XLP value proposition. The 28-pin QFN package has a low thermal resistance path through the exposed pad. Architecturally, the PIC18F25K40 uses a C-compiler-optimized RISC core with a single-cycle 8x8 hardware multiplier, 49 instruction types and a 16-level hardware stack, allowing deterministic interrupt response and efficient code density. The 32 KB self-programmable Flash supports runtime firmware updates via the bootloader-friendly ICSP interface. Typical applications include low-power IoT sensor nodes, USB-CDC/HID human-interface devices, automotive body controllers, battery chargers, home appliances and general-purpose embedded control where the XLP current profile (e.g., 50 nA typical sleep with RTCC) is critical. Designers choose this part when balancing program memory headroom, peripheral mix and 28-pin QFN density. When designing with this part, ensure the exposed thermal pad on pin 29 (the die-attach pad) is soldered to a properly grounded copper pour to meet thermal and electrical performance. Decoupling: place a 100 nF ceramic as close as possible to each VDD/VSS pair, plus a bulk 1 uF-10 uF on the main rail. Programming/debug uses the standard Microchip ICSP 2-wire interface on PGC/PGD. This page synthesizes distributor pricing, drop-in alternatives, parametric comparison and practical design notes that are not aggregated on a single manufacturer datasheet page, helping engineers shorten sourcing decisions and BOM validation cycles.

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PIC18F25K40T-I/SO - 32KB Flash 8-bit MCU, 28-SOIC | Microchip
PIC18F25K40T-I/SO

PIC18F25K40T-I/SO - 32KB Flash 8-bit MCU, 28-SOIC | Microchip

The Microchip Technology PIC18F25K40T-I/SO is an 8-bit PIC18 microcontroller from the XLP 18K family that integrates 32 KB Flash program memory, 2 KB SRAM and 256 B EEPROM, with a 64 MHz internal oscillator and Core Independent Peripherals such as CWG, WWDT, CRC/Scan, HLT and PWM in a 28-pin SOIC package. The "/T" suffix denotes Tape & Reel packaging and "I" denotes the industrial -40C to +85C operating temperature range, while "SO" specifies the 300-mil 28-pin SOIC form factor. The PIC18F25K40 is a wide-voltage 2.3 V - 5.5 V part designed for low-power applications. A PIC (Peripheral Interface Controller) microcontroller is a class of 8-bit RISC microcontrollers from Microchip Technology built on a Harvard architecture with separate program and data buses. PIC18 is Microchip's enhanced 8-bit family featuring a C-compiler-optimized instruction set, hardware multiplier, hardware stack and 31-level interrupt priority, sitting architecturally between baseline PIC10/12/16 and 16-bit dsPIC33 / PIC24 families. The "K" device series in PIC18F specifically targets ultra-low-power XLP applications with rich analog integration. Key features include 32 KB self-programmable Flash, 2 KB SRAM, 256 B EEPROM, a 10-bit ADC with Computation (ADC2), a 5-bit DAC, two comparators, capture/compare/PWM modules and Core Independent Peripherals that let hardware timers, CWG and CRC operate without CPU involvement. This reduces firmware complexity and active time, directly extending battery life in sleep-dominant designs. The PIC18F25K40T-I/SO is built on Microchip's enhanced mid-range 8-bit core with a 16-bit instruction word, vectored interrupts and a hardware multiply/divide engine. XLP technology delivers nanoWatt sleep currents in the order of tens of nA with retention RAM, while the 64 MHz internal HFINTOSC eliminates an external crystal in many designs. The architecture targets deterministic real-time control with rich analog. Typical applications include low-power IoT sensor nodes, battery-powered consumer devices, white goods and small motor-control subsystems, industrial sensor transmitters and human-machine interface front ends. The wide 2.3 V - 5.5 V supply range with 5 V-tolerant digital I/O makes the part suitable for legacy 5 V systems as well as 3.3 V designs. When designing, place a 100 nF decoupling capacitor as close as possible to VDD and a bulk capacitor on AVDD; route AVDD separately to avoid ADC reference noise. Use the IVT-based interrupt system with prioritised vectors and reserve the 31-level hardware stack for nested call depth. This page synthesises distributor pricing, parametric alternatives and engineering design notes that go beyond a single datasheet chapter, helping procurement and embedded engineers evaluate the PIC18F25K40T-I/SO alongside its K22 and K20 predecessors and competing 8-bit MCU families.

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PIC18F25K40T-I/SS - 8-bit 64MHz MCU 32KB Flash | Microchip
PIC18F25K40T-I/SS

PIC18F25K40T-I/SS - 8-bit 64MHz MCU 32KB Flash | Microchip

The Microchip PIC18F25K40T-I/SS is an 8-bit PIC18 XLP microcontroller operating up to 64 MHz with 32 KB Flash, 2 KB SRAM, and 256 B EEPROM in a 28-pin SSOP package. The device features a 10-bit ADC with Computation (ADC2), a 5-bit DAC, two comparators, and PWM/CCP/CWG peripherals. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, and configurable peripherals such as ADC, timers, communication interfaces, and GPIO. The PIC18 family belongs to Microchip's 8-bit RISC architecture optimized for C-compiler efficiency and is widely used in consumer, industrial, and automotive body applications. PIC18F-series parts sit at the top of Microchip's 8-bit lineup with the largest peripheral set, the most I/O, and the highest code density per MHz. Key features include Core Independent Peripherals (CIPs) such as Complementary Waveform Generator (CWG), Configurable Logic Cell (CLC), Windowed Watchdog Timer (WWDT), CRC/Memory Scan, Zero-Cross Detect, and Peripheral Pin Select (PPS). The XLP (eXtreme Low Power) technology provides sub-uA sleep currents suitable for battery-powered IoT sensors. The ADC2 performs automatic averaging, threshold comparison, and oversampling in hardware, offloading signal conditioning from the CPU. The architecture combines a 16-bit instruction word with an 8-bit data path, supports hardware multiply and a 31-level stack, and offers 36 MHz operation down to 1.8V and 64 MHz up to 5V. Internal oscillator blocks provide factory-calibrated accuracy across voltage and temperature, reducing external component count. Typical applications include home appliances, IoT sensor nodes, motor control (BLDC, stepper, fan), LED lighting control, battery management units, automotive body controllers, and industrial sensor interfaces. The rich CIP integration allows sensor conditioning, commutation logic, and comms handling without CPU intervention. When designing with this device, allocate the 28-pin SSOP budget carefully: 25 usable I/O after power and programming pins. Choose the PIC18F26K40 if you need more Flash (64 KB) in the same package footprint. This page synthesizes distributor pricing, drop-in package-equivalent alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC18F25K42-E/ML - 8-Bit 64MHz 32KB Flash MCU | Microchip
PIC18F25K42-E/ML

PIC18F25K42-E/ML - 8-Bit 64MHz 32KB Flash MCU | Microchip

The Microchip Technology PIC18F25K42-E/ML is a 28-pin 8-bit PIC18 microcontroller built on the eXtreme Low-Power (XLP) platform and Functional Safety (FuSa) architecture, operating at up to 64 MHz with 32 KB of Flash program memory, 2 KB of SRAM, and 256 bytes of EEPROM, housed in a 6 x 6 mm 28-QFN package (ML). The -E suffix indicates the -40C to +125C extended-temperature grade, qualified for harsh industrial and automotive under-hood environments. The part integrates CIPs (Core Independent Peripherals), 12-bit ADC2 with Computation, CLC, DMA, vectored interrupts, UART, SPI, I2C, and rich analog such as DAC, comparators, ZCD and PWM/CWG/HLT/WWDT/SCAN/CRC blocks. What is a PIC18 microcontroller? A PIC18 is an 8-bit Harvard-architecture RISC MCU from Microchip's PIC family. The PIC18 sub-family adds 16-bit instruction words, hardware multiply, C-compiler friendly architecture, and rich peripheral integration, sitting within the broader hierarchy: PIC18 -> 8-bit PIC -> PIC microcontroller -> microcontroller -> embedded processor -> semiconductor. K42-series parts in particular add Functional Safety features (windowed WDT, CRC/Scan, Memory Partitioning) targeted at IEC 61508 / SIL-aware designs. Key features include a 12-bit ADC2 with Computation (ADC2) for automated capacitive voltage-divider touch sensing, DMA between peripherals and RAM, 5-bit DAC, 4 CLCs for hardware glue logic, Configurable Logic Cells, Zero-Cross Detect, Complementary Waveform Generator, High/Low-Timing modules, Windowed Watchdog Timer, and PPS (Peripheral Pin Select) for flexible signal routing. The XLP nanoWatt XLP sleep currents (under 50 nA typical in Sleep with RAM retention on the L-variant) make it attractive for battery or energy-harvesting endpoints. The K42 architecture executes 16-bit instructions from Flash with a 31-level hardware stack and runs most instructions in a single 64 MHz clock cycle, while peripheral operation continues in Doze/Idle. Vectored interrupt handling provides fixed deterministic latency, and the System Bus Arbiter resolves DMA-vs-CPU conflicts automatically. The 12-bit ADC2 with post-processing computes averaging, oversampling and threshold compare in hardware, offloading the CPU for sensor-conditioning loops. Typical applications include low-power IoT sensor nodes, capacitive-touch user interfaces, automotive body and HVAC controls, consumer appliances with displays, industrial sensor signal conditioning, USB-less serial bridge products, and functional-safety sensor endpoints. The wide 1.8 V - 5.5 V VDD range and -40C to +125C operation suit outdoor, industrial, and automotive under-hood zones. A practical design tip: when migrating from the K40 or K22 families to the K42, re-verify the PPS assignments and the new 12-bit ADC2 trigger sources - the K42 introduces new trigger sources and removes some that existed on K40. Always program the WDT using the WWDT-conf (FCMEN, IESO, RTC) configuration words early in development so an unintended reset does not corrupt EEPROM writes. This page synthesises distributor pricing, drop-in same-package alternatives (K40, K42 -I / -MV siblings, F-series 28-QFN PIC18s) and practical design guidance not all packaged together in the manufacturer datasheet, helping engineers evaluate fit and source the right part faster.

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PIC18F25K42-E/SO - 8-bit 64MHz 32KB Flash MCU | Microchip
PIC18F25K42-E/SO

PIC18F25K42-E/SO - 8-bit 64MHz 32KB Flash MCU | Microchip

The Microchip Technology PIC18F25K42-E/SO is an 8-bit PIC18 microcontroller with XLP (eXtreme Low Power) technology running at up to 64 MHz, integrating 32 KB of Flash program memory, 2 KB of RAM, and 256 bytes of EEPROM, packaged in a 28-pin SOIC (SO, 7.50 mm body). The -E suffix indicates the -40C to +125C extended operating temperature grade, and the SO package is the 0.300" wide 28-pin small-outline IC. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, plus a configurable set of peripherals and I/O pins. PIC18 (L)FxxK42 devices are part of Microchip's enhanced mid-range 8-bit family, which sits below the dsPIC/PIC24 16-bit families in the taxonomy MCU -> 8-bit microcontroller -> PIC18 family -> enhanced mid-range core. Compared with legacy PIC16 parts, the PIC18 family adds linear program memory addressing, hardware multiply, vectored interrupts, and C-optimized architecture. Key features of the PIC18F25K42 include 12-bit ADC2 with computation, a 5-bit DAC, two comparators, vector interrupts with hardware DMA, a peripheral pin select (PPS) matrix for flexible pin remapping, four 16-bit timers, four CCP/PWM channels, an SPI/I2C/UART complement, and XLP nanoWatt sleep modes that drop quiescent current to the sub-microamp range. Functional Safety (FuSa) features such as a memory partition, digital signal input/output mapping, and diagnostic interrupt accumulator assist IEC 61508 / ISO 26262 system designs. Typical applications are general-purpose embedded control nodes, sensor hubs with DMA-driven acquisition, low-power battery sensor products, LED lighting controllers, and automotive body modules that benefit from the -40C to +125C grade. When designing with this MCU, ensure the PPS configuration matches the board layout and that the brown-out and watchdog timer are configured for the target application's safety class.

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PIC18F25K42-E/SP - 32KB Flash 8-bit MCU | 28-SPDIP | Microchip
PIC18F25K42-E/SP

PIC18F25K42-E/SP - 32KB Flash 8-bit MCU | 28-SPDIP | Microchip

The Microchip Technology PIC18F25K42-E/SP is an 8-bit PIC18 microcontroller with 32 KB Flash, 2 KB RAM and 256 B EEPROM, packaged in a 28-pin SPDIP through-hole format. It belongs to the PIC18FxxK42 family and runs at up to 64 MHz internal clock, integrating 12-bit ADC2 with computation, vector interrupts, DMA, DAC, comparators, PWM, CWG, HLT, WWDT, SCAN/CRC, ZCD, PPS, UART, SPI and I2C peripherals on a single die. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), working memory (RAM), data memory (EEPROM), and peripheral interfaces. Within the broader semiconductor hierarchy, MCUs sit under microcontrollers -> embedded processors -> semiconductors. The PIC18F25K42 family specifically targets low-power, high-performance applications using Microchip's XLP (eXtreme Low Power) technology and Functional Safety (FuSa) capable peripherals. Key features of the PIC18F25K42-E/SP include: 32 KB self-programmable Flash with code protection, 2 KB SRAM with hardware-managed context saving, 256 B high-endurance EEPROM rated for 100k erase/write cycles, 12-bit ADC2 with up to 35 channels and post-processing math accelerator, multiple communication peripherals (UART, SPI, I2C with SMBus PMBus), and DMA controller for memory-to-memory transfers. The -E/SP suffix indicates the extended (E) temperature grade of -40C to +125C in a 28-SPDIP package. The device uses Microchip's enhanced mid-range core with a 16-bit instruction word and 8-bit data path, supporting C-compiler-friendly assembly with hardware multiply and divide. Vectored interrupts with priority levels and peripheral pin select (PPS) provide flexible routing for digital and analog peripherals, simplifying PCB layout. Power management features include idle/doze modes, peripheral module disable (PMD), and XLP sleep currents in the nanoampere range, making the part suitable for battery-powered and energy-harvesting applications. Typical applications for the PIC18F25K42-E/SP include low-power IoT sensor nodes, motor control for small BLDC and stepper drives, industrial control with functional safety diagnostics, consumer appliance control boards, and general-purpose embedded products requiring 28-pin DIP-friendly prototyping. The DIP package supports easy breadboarding and through-hole rework in low-volume production. When designing with this MCU, verify Vdd range (1.8V to 5.5V for F; 1.8V to 3.6V for LF variant), apply correct decoupling (100 nF + bulk cap near Vdd), and configure PPS carefully since the same peripheral can map to multiple I/O pins. Programming requires Microchip's MPLAB X IDE with XC8 compiler or compatible toolchains. This page synthesizes distributor pricing, drop-in alternative MPNs, application examples, and practical design notes that go beyond the manufacturer datasheet, giving engineers a faster path to part selection, BOM consolidation, and PCB layout decisions for PIC18F25K42-based designs.

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PIC18F25K42-E/SS - 8-Bit 64MHz 32KB Flash MCU | Microchip
PIC18F25K42-E/SS

PIC18F25K42-E/SS - 8-Bit 64MHz 32KB Flash MCU | Microchip

The Microchip PIC18F25K42-E/SS is an 8-bit PIC18 microcontroller built on the XLP (eXtreme Low Power) platform, integrating 32 KB of Flash program memory, 2 KB of RAM and 256 bytes of EEPROM in a 28-pin SSOP package. It executes instructions at up to 64 MHz from the internal oscillator, includes a 12-bit ADC2 with computation engine, 5-bit DAC, multiple comparators, PWM modules, DMA, vector interrupts, and configurable logic cells (CLC) for hardware glue logic. An 8-bit microcontroller (MCU) is a programmable computing IC that executes instructions 8 bits at a time over an internal data bus. PIC18F devices sit in Microchip's mainstream PIC architecture hierarchy: 8-bit MCU -> PIC18 family -> PIC18FxxK42 sub-family -> low-power XLP platform -> semiconductor. Within an embedded system the MCU provides deterministic real-time control alongside sensors, power and connectivity peripherals, replacing discrete logic while consuming milliwatts of power. Key features include a 12-bit differential ADC2 supporting automatic averaging and threshold comparison, a hardware DMA controller that moves data between peripherals and memory without CPU intervention, configurable logic cells (CLC) that let designers implement state machines and signal conditioning in silicon, and Functional Safety (FuSa) features such as a dedicated Windowed Watchdog Timer and a CRC scanner. Two UART, two SPI and two I2C interfaces support simultaneous multi-bus connectivity for sensor, display and wireless-module attachment. The K42 architecture pairs the standard PIC18 RISC core with independent peripherals interconnected through the peripheral pin select (PPS) crossbar, allowing flexible remapping of digital functions to physical pins. The XLP technology delivers typical sleep currents in the nanoamp range, idle currents near 1 uA, and active currents around 200 uA/MIPS - the right combination for always-on battery applications that wake periodically to process data. Typical applications include low-power IoT sensor nodes, industrial control peripherals, consumer appliances, automotive body and accessory controllers, and USB-to-UART bridging or general digital control. The wide 2.3V-5.5V supply range also lets the part operate directly from a single-cell Li-ion battery or a regulated 3.3V/5V rail. A key design tip is to use the PPS re-mapping to free up board real estate: nearly every digital peripheral can be routed to multiple physical pins, simplifying PCB routing without changing the silicon. Always configure the watchdog timer for unattended applications to recover from firmware lock-ups.

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PIC18F25K42-I/MV - 8-Bit 64MHz XLP MCU 32KB Flash UQFN-28 | Microchip
PIC18F25K42-I/MV

PIC18F25K42-I/MV - 8-Bit 64MHz XLP MCU 32KB Flash UQFN-28 | Microchip

The Microchip Technology PIC18F25K42-I/MV is an 8-bit PIC18 XLP microcontroller running at up to 64 MHz with 32 KB Flash, 2 KB SRAM and 256 B EEPROM, housed in a 28-pin UQFN (4x4 mm) package. It integrates 12-bit ADC2 with Computation, multiple DAC outputs, comparators, configurable logic cells (CLC), and Direct Memory Access (DMA), enabling efficient sensor and motor-control designs. A microcontroller (MCU) is a single-chip computer containing a CPU, non-volatile program memory, volatile data memory, and on-chip peripherals such as timers, ADC, communication interfaces and GPIO. The PIC18 family targets 8-bit embedded control and is widely adopted in industrial, consumer, automotive and IoT applications where deterministic behavior, low power, and rich peripherals matter more than raw CPU throughput. PIC18F25K42 specifically belongs to the low-power XLP family, which integrates nanoWatt XLP technology for deep sleep and active mode power optimization. Key features include 64 MHz operation, 12-bit ADC with up to 35 channels, multiple UART/SPI/I2C with DMA support, 5-bit DAC, comparators with hysteresis, CLCs that operate without CPU intervention, and a functional safety (FuSa) category classified by Microchip. The device targets 1.8 V to 5.5 V operation, supports extended (-40C to +125C) industrial temperature, and is offered with XLP idle/doze/peripheral module disable modes that cut active current to microampere ranges. Architecturally, the PIC18F25K42 uses an enhanced Harvard 8-bit core with a 16-bit instruction word, hardware multiplier, interrupt prioritization, and vectored interrupts. Core-independent peripherals such as CLC, PWM, NCO and the CRC/SCAN engine offload routine work from the CPU, while DMA paths between memory and peripherals reduce interrupt overhead. Programming is supported through MPLAB X IDE with XC8 compilers, and in-circuit debugging via standard 4-wire ICD. Typical applications include home appliances, IoT sensor nodes, low-power battery-powered devices, automotive body and lighting subsystems, industrial control, sensor signal conditioning, and motor/lighting control. The functional safety (FuSa) designation makes the part appealing to safety-related systems per IEC 61508 SIL 2/3 recommendations when paired with appropriate documentation. When designing with this MCU, allocate PCB area for the ICSP/programming header, provide adequate decoupling (100 nF plus 1-10 uF bulk), and respect the 1.8-5.5 V supply rails. Use the PPS (Peripheral Pin Select) feature to remap peripherals to pins, simplifying PCB layout and BOM reuse across PIC18F variants in the family. This page synthesizes distributor availability (8+ distributors), drop-in pin-compatible same-family variants, and engineering guidance gathered from Microchip's K42 family datasheet - content you will not find on a single datasheet or distributor listing page.

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PIC18F25K42-I/SO - 8-bit 64MHz 32KB Flash XLP MCU | Microchip
PIC18F25K42-I/SO

PIC18F25K42-I/SO - 8-bit 64MHz 32KB Flash XLP MCU | Microchip

The Microchip Technology PIC18F25K42-I/SO is a 64 MHz, 32 KB Flash, 2 KB SRAM, 256-byte EEPROM 8-bit PIC18 microcontroller in a 28-pin SOIC package, part of the PIC18(L)FxxK42 XLP family with Functional Safety (FuSa) hardware features. According to Microchip's PIC18F24/25K42 datasheet, the device integrates a 24-channel 12-bit ADC with Computation (ADCC), three UARTs, two SPI, two I2C, a DMA controller, Configurable Logic Cells (CLC), Complementary Waveform Generator (CWG), and CCP/PWM peripherals in a 7.50 mm wide 300-mil SOIC outline. An 8-bit microcontroller (MCU) is a small computer-on-a-chip built around an 8-bit data bus. It combines a CPU, non-volatile program memory (Flash), volatile working memory (RAM), small non-volatile data memory (EEPROM), and a rich set of peripherals such as timers, ADC, communication ports and GPIOs. PIC18 is Microchip's high-performance 8-bit family; the K42 sub-family adds low-power XLP operation and modern peripherals like a 12-bit ADC with Computation (ADCC), DMA, Vector Interrupts, CWG, CLC, and a 5-bit DAC. In the taxonomy: 8-bit MCU -> microcontroller -> embedded computing -> semiconductor. Key features include 25 MIPS throughput at 64 MHz, 32 KB self-programmable Flash with 10 KB bootloader area, 2 KB SRAM, 256 bytes EEPROM, integrated temperature indicator, programmable CRC with memory scan, and nanoWatt XLP sleep currents in the nA range. The device operates from 1.8 V to 5.5 V, with the -I industrial temperature grade spanning -40 C to +85 C, while the -E grade spans -40 C to +125 C. Architecturally, the PIC18F25K42 uses an enhanced Harvard architecture with a 16-bit instruction word and 8-bit data path, a 31-level hardware stack, and a high-throughput instruction pipeline. The integrated DMA controller offloads data movement between peripherals and memory, freeing the core for application logic and improving deterministic real-time response. Typical applications include industrial sensor nodes, IoT edge devices, low-power battery-powered metering, automotive body and climate subsystems (using the E/SP or E/SS extended-grade variants in non-safety contexts), home appliances, and any Functional Safety design needing pre-certified diagnostics and FMEDA documentation. When designing with this device, verify the 28-pin SOIC package matches your PCB land pattern, and confirm whether you need the -I industrial grade (-40 to +85 C) or -E extended grade (-40 to +125 C) temperature variant. Use MPLAB X IDE with the MPLAB Code Configurator (MCC) and the XC8 compiler for software development. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the bare datasheet, including a parameter-by-parameter comparison against same-brand K42 family variants and competing 8-bit MCUs.

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PIC18F25K42-I/SP - 32KB Flash 8-bit MCU 64MHz 28-SPDIP | Microchip
PIC18F25K42-I/SP

PIC18F25K42-I/SP - 32KB Flash 8-bit MCU 64MHz 28-SPDIP | Microchip

The Microchip Technology PIC18F25K42-I/SP is an 8-bit PIC microcontroller from the PIC18FxxK42 family running at 64 MHz, integrating 32 KB of Flash program memory, 2 KB of RAM, and 256 bytes of EEPROM in a 28-pin SPDIP through-hole package. The device is built on Microchip's eXtreme Low Power (XLP) technology platform and includes Functional Safety (FuSa) features, making it suitable for safety-critical applications requiring IEC 61508 SIL compliance documentation. The -I/SP suffix denotes the industrial temperature grade (-40C to +85C) and SPDIP package. An 8-bit microcontroller (MCU) is a programmable integrated circuit that executes instructions from on-chip memory and interfaces with peripherals through digital and analog I/O pins. Within the broader taxonomy, an MCU belongs to microcontrollers -> microprocessors -> semiconductors -> integrated circuits. The PIC18F architecture implements an enhanced 8-bit RISC-like instruction set with hardware multiplier and 16-bit wide Flash, providing better code density than baseline PIC16 devices while retaining the simple peripheral and deterministic interrupt model that characterizes the PIC family. Key features include a 12-bit ADC2 with computation, a 5-bit DAC, multiple comparators, configurable logic cells, Complementary Waveform Generator (CWG), and Zero-Cross Detect (ZCD) - giving the device an unusually rich set of analog and digital peripherals for an 8-bit MCU. Vectored interrupts, DMA, Peripheral Pin Select (PPS), and a Memory Access Partitioning (MAP) scheme provide system-level flexibility normally associated with 32-bit parts. The device also integrates a Windowed Watchdog Timer (WWDT) and CRC/SCAN hardware for functional safety. Typical applications include industrial sensor conditioning, motor control loops, IoT edge nodes, low-power remote controls, and functional-safety subsystems. The wide peripheral set allows a single chip to replace a typical MCU plus external op-amp and analog mux circuit. When designing, allocate decoupling capacitance (100 nF plus 10 uF bulk) close to VDD/AVDD pins, follow Microchip's SPDIP footprint (0.1 inch row pitch) for socket compatibility, and use ICD4 or PICkit 4 for debug. This page synthesizes distributor pricing, drop-in alternatives in the same 28-SPDIP package, and engineering design notes that extend beyond the manufacturer datasheet, enabling faster BOM selection and procurement.

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PIC18F25K42-I/SS - 8-bit 64MHz 32KB Flash MCU 28-SSOP | Microchip
PIC18F25K42-I/SS

PIC18F25K42-I/SS - 8-bit 64MHz 32KB Flash MCU 28-SSOP | Microchip

The Microchip PIC18F25K42-I/SS is an 8-bit microcontroller from the PIC18FxxK42 family, delivering 64 MHz CPU performance with 32 KB Flash, 2 KB SRAM, and 256 B EEPROM in a 28-pin SSOP package. The part carries the -I (industrial) temperature grade spanning -40C to +85C and integrates rich Core Independent Peripherals (CIPs), a 12-bit ADC with Computation (ADC2), Configurable Logic Cells (CLC), Direct Memory Access (DMA), and UART/SPI/I2C serial interfaces. A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, volatile data memory, and peripheral subsystems on one die. PIC18F microcontrollers are 8-bit RISC-Harvard architecture devices in the broader PIC family, which sits hierarchically under microcontrollers -> embedded processors -> semiconductor devices. The K42 sub-family is the PIC18F24/25/45/46K42 line that introduces XLP (eXtreme Low Power) technology and Functional Safety (FuSa) diagnostics, positioning these parts at the high end of the 8-bit PIC portfolio. Key features include a 12-bit ADC with Computation (ADC2) that automates Capacitive Voltage Divider (CVD) sequences for advanced touch sensing, up to 256 bytes of EEPROM with high-endurance rating, hardware DMA that offloads data movement between peripherals and memory, and CLC blocks that let designers implement glue logic inside the MCU. The XLP idle/doze/sleep modes plus nanoWatt XLP peripherals enable typical sleep currents below 1 uA, which is essential for battery-powered nodes. Architecturally the device pairs a modified Harvard RISC core with a vectored interrupt controller (fixed-latency IVT) and a System Bus Arbiter that coordinates DMA, CPU, and CLC transactions without CPU intervention. The 64 MHz internal oscillator and PLL eliminate external crystals in most applications, while four 16-bit timers, two CCP modules, three ECCP modules (with PWM), and a CWG (Complementary Waveform Generator) provide flexible waveform synthesis for motor, lighting, and power-control loops. Typical applications include consumer appliances, IoT sensor nodes, touch-button human-machine interfaces, low-end motor control, LED lighting controllers, and functional-safety systems that benefit from the FuSa diagnostics. The combination of DMA + CLC + ADC2 allows a single 28-pin part to replace discrete logic and a small companion MCU in cost-sensitive designs. Design considerations: ensure the SSOP-28 land pattern follows IPC-7351 nominal density, place a 100 nF decoupling cap within 2 mm of each VDD pin, and reserve the MCLR pin through a 10 kohm pull-up for in-circuit serial programming (ICSP). The -I/SS variant operates from -40C to +85C; use the -E/SS extended grade for -40C to +125C automotive or industrial environments. This page synthesizes DigiKey and Mouser distributor pricing, verified drop-in alternatives from the PIC18FxxK40 and PIC18FxxK22 family, and practical design notes not found in the manufacturer datasheet.

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PIC18F25K42T-E/SSVAO - 32KB Flash 8-bit MCU, AEC-Q100 | Microchip
PIC18F25K42T-E/SSVAO

PIC18F25K42T-E/SSVAO - 32KB Flash 8-bit MCU, AEC-Q100 | Microchip

The Microchip Technology PIC18F25K42T-E/SSVAO is an 8-bit PIC18 microcontroller featuring 32KB of Flash program memory, 2KB of SRAM, and 256 bytes of EEPROM, housed in a 28-pin SSOP (5.30 mm / 0.209" width) package and qualified to the AEC-Q100 automotive standard. Operating from 2.3 V to 5.5 V supply and capable of executing instructions at up to 64 MHz, the part delivers roughly 16 MIPS while consuming only nanoWatt XLP sleep currents. It belongs to the PIC18(L)FxxK42 family of 28-/40-/48-pin low-power high-performance microcontrollers with XLP technology. An 8-bit microcontroller (MCU) is a single-chip computer built around a CPU with an 8-bit data path, on-chip Flash for program storage, RAM for variables, EEPROM for non-volatile data, and a rich peripheral set including timers, ADC, communication interfaces, and Core Independent Peripherals (CIPs). Within the broader taxonomy, the PIC18F25K42T-E/SSVAO belongs to: microcontroller -> embedded MCU -> PIC18 family -> PIC18 K-series -> PIC18(L)FxxK42 family -> 28-pin K42 sub-family -> automotive-grade (AEC-Q100) variants. This hierarchy is what distinguishes it from 16-bit dsPIC and 32-bit ARM Cortex-M competitors from other vendors. The key feature set includes a 12-bit differential ADC with Computation (ADC2), a 5-bit DAC, on-chip DMA, three analog comparators, a 16-bit PWM, four Configurable Logic Cells (CLC), Complementary Waveform Generator (CWG), Hardware Limit Timer (HLT), Windowed Watchdog Timer (WWDT), CRC/Memory Scan, and Peripheral Pin Select (PPS) for flexible signal routing. CIPs let designers offload logic to hardware, reducing CPU wake events and extending battery life in always-on applications. On the architecture side, this MCU uses Microchip's enhanced mid-range 8-bit CPU core with a 16-bit instruction word and an 8-level hardware stack, paired with a Harvard bus that lets the CPU fetch from Flash while reading data from RAM. The XLP nanoWatt technology adds multiple idle/sleep modes and ultra-low-power peripherals such as RTCC, HLVD, and WWDT, enabling years of operation from a single coin cell when properly configured. Typical applications for the PIC18F25K42T-E/SSVAO span the automotive AEC-Q100 landscape: body controllers, sensor interfaces, LED lighting modules, HVAC actuators, BCM auxiliary functions, and LIN-connected nodes. Industrial and consumer variants in the same family address general-purpose motor control, IoT end nodes, and battery-powered sensing. When designing with this device, ensure proper decoupling (100 nF + bulk cap close to VDD/AVDD/VBAT) and configure unused pins as outputs low to minimize leakage. The PPS peripheral must be locked before entering sleep to avoid accidental peripheral remap after a watchdog reset. This page synthesizes distributor pricing, AEC-Q100 cross-brand drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC18F25K42T-I/ML - 32KB Flash 8-bit MCU 28-QFN | Microchip
PIC18F25K42T-I/ML

PIC18F25K42T-I/ML - 32KB Flash 8-bit MCU 28-QFN | Microchip

The Microchip PIC18F25K42T-I/ML is an 8-bit PIC microcontroller with 32KB Flash, 2KB SRAM and 256B EEPROM, running up to 64MHz in a 28-pin QFN (6x6) package with exposed pad. It integrates core-independent peripherals, intelligent analog, and large memory in an XLP low-power architecture. Tape and reel packaging (T suffix). A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory and programmable I/O. The PIC18 family uses an enhanced 8-bit RISC Harvard architecture with a modified instruction set, suitable for embedded control from appliances to industrial sensor nodes. The PIC18F25K42 belongs to the K42 generation, which adds DMA, configurable logic cells (CLC), CWG, multiple PWM/CCP, and an analog companion including 12-bit ADC and 5-bit DAC. Key features include 32KB (16K x 16) Flash program memory, 2KB SRAM, 256B data EEPROM, 64MHz maximum clock, and an industrial -40C to +85C operating range. The device supports 2.5V/3.3V/5V operation, includes 10 timers, 2 DMA channels, CLC/CWG/HLT peripherals, and multiple serial interfaces. Functional Safety (FuSa) capability makes it suitable for safety-critical embedded designs. Architecturally, the K42 separates the analog and digital domains and uses a 16-level stack plus hardware multiplier for efficient C code. Core-independent peripherals offload tasks from the CPU, lowering latency and active time, which combined with XLP sleep currents extends battery life. Typical applications include IoT edge nodes, industrial sensor conditioning, home appliances, lighting and motor control, USB-to-UART bridges, and small graphical user interfaces. The wide operating voltage and rich peripheral set also suit automotive body and aftermarket modules. When designing, place a 100nF decoupling capacitor near each VDD pin and a bulk 10uF near the regulator output. Use the exposed pad (EP) for thermal relief and provide solid ground copper to improve ADC noise performance. This page synthesizes distributor pricing, drop-in alternatives and practical design notes not found in the manufacturer datasheet alone.

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PIC18F25K42T-I/MV - 8-bit MCU, 32KB Flash, 64MHz, 28-UQFN | Microchip
PIC18F25K42T-I/MV

PIC18F25K42T-I/MV - 8-bit MCU, 32KB Flash, 64MHz, 28-UQFN | Microchip

The Microchip Technology PIC18F25K42T-I/MV is an 8-bit PIC18 XLP microcontroller with 32KB Flash, 2KB RAM, and 256B EEPROM, operating at up to 64MHz, housed in a 28-pin UQFN (MV) 4x4 mm package. It integrates a 12-bit ADC2 with Computation, a 5-bit DAC, vector interrupts, DMA, configurable logic cells (CLC), complementary waveform generator (CWG), and peripheral pin select (PPS), delivering high functional density in a compact footprint. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path CPU, on-chip Flash program memory, RAM, EEPROM, and a rich set of peripherals. Within the broader classification, an MCU belongs to microcontrollers, then to embedded processors, then to semiconductors. The PIC18 family uses an enhanced Harvard RISC architecture with 16-bit instructions, giving the PIC18F25K42 family a balance of code density, deterministic interrupt response, and ease of programming in C or assembly. Key features include eXtreme Low Power (XLP) technology with nanoWatt sleep currents, multiple idle/doze/peripheral module disable modes, hardware DMA that offloads ADC and memory-to-memory transfers from the CPU, and functional-safety diagnostics including WWDT, CRC/SCAN, windowed watchdog, and hardware limit timer (HLT). It also offers up to 25mA source/sink on I/O, supporting direct LED drive. Typical applications include low-power IoT sensor nodes, battery-powered consumer devices, home appliances, industrial control and monitoring, LED lighting controllers, and automotive body electronics subsystems (via the automotive-grade PIC18F25K42T-I/MVVAO). The wide operating voltage range and rich peripheral set make it well-suited to mixed-signal designs. When designing with this device, pay attention to the UQFN-28 thermal pad layout. Place a low-impedance ground via array directly under the exposed pad, follow Microchip's UQFN land pattern exactly, and budget for 64MHz operation only across the full 2.3V-5.5V supply range. This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a one-stop comparison resource for the PIC18F25K42 family.

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PIC18F25K50-E/SP - 8-bit USB MCU, 32KB Flash, 48MHz | Microchip
PIC18F25K50-E/SP

PIC18F25K50-E/SP - 8-bit USB MCU, 32KB Flash, 48MHz | Microchip

The Microchip Technology PIC18F25K50-E/SP is an 8-bit PIC18 microcontroller with integrated USB 2.0 full-speed transceiver, 32KB of Flash program memory, and 48MHz internal oscillator, housed in a 28-pin SPDIP (Skinny Plastic DIP) through-hole package. A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory (Flash/ROM), working memory (RAM), and programmable I/O peripherals. PIC18 family microcontrollers use a 16-bit modified-Harvard architecture with 8-bit data bus, 31-level hardware stack, and a rich peripheral set including USB, ADC, PWM, and serial communication modules. They sit within the broader taxonomy: microcontroller -> embedded processor -> semiconductor IC -> active component. Key features include 32KB Flash program memory with self read/write capability, 2KB RAM, 256 bytes EEPROM, 48MHz internal oscillator tunable from USB host clock (Active Clock Tuning), integrated USB 2.0 full-speed transceiver, 25 I/O pins with multiple interrupt-on-change sources, 10-bit ADC up to 14 channels, two CCP/ECCP modules, two comparators, and Master Synchronous Serial Port (MSSP) supporting SPI and I2C. The part belongs to Microchip's XLP (eXtreme Low Power) family with sleep currents down to ~20 nA typical. The PIC18F25K50 core uses a 16-bit instruction word with 8-bit data path, executes one instruction per 4 clock cycles, and supports hardware 8x8 multiply. The integrated USB module handles full-speed (12 Mbps) device/host/OTG operation with on-chip transceiver and internal pull-up, eliminating the external USB components normally required. Active Clock Tuning automatically trims the internal HFINTOSC against the USB host frame clock for accurate baud-rate generation without external crystals. Typical applications include USB peripherals (HID, CDC, MIDI, custom classes), USB-to-UART bridges, low-power sensor nodes, battery-powered consumer electronics, industrial control interfaces, and educational/development platforms. The wide 2.3V-5.5V supply range and low sleep current also suit solar-powered or energy-harvesting designs. When designing with this device, note that the '-E' suffix indicates the Extended (-40C to +125C) operating temperature grade. The SPDIP package is best for prototyping and through-hole assembly; for volume production, equivalent parts in SOIC/SSOP/QFN packages are available within the same PIC18F25K50 family. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that supplement the manufacturer datasheet for faster engineering evaluation.

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PIC18F25K50-I/ML - 8-Bit USB MCU, 32KB Flash, 28-QFN | Microchip
PIC18F25K50-I/ML

PIC18F25K50-I/ML - 8-Bit USB MCU, 32KB Flash, 28-QFN | Microchip

The Microchip PIC18F25K50-I/ML is an 8-bit PIC18 microcontroller with integrated USB 2.0 transceiver, 32 KB of Flash program memory, and XLP (eXtreme Low Power) technology in a 28-pin QFN (6x6 mm) package. It executes instructions at 200 ns, delivering up to 16 MIPS at 48 MHz, and includes 2 KB SRAM plus 256 B EEPROM. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and peripherals. The PIC18 family uses a RISC (Reduced Instruction Set Computer) architecture with 75 instructions, chosen over CISC for compact code density and deterministic timing. Within the PIC18F family, the 25K50 sits in the performance tier with USB on-chip, while larger variants in the 46K/56K/66K ranges add more memory; smaller 14K/24K parts drop the USB PHY. PIC18 belongs to Microchip's 8-bit line — distinct from 16-bit dsPIC and 32-bit SAM/CEC families, and runs at 2.5 V, 3.3 V, or 5 V. Key features include 24 channels of 10-bit ADC with up to 28 digital I/O pins, two analog comparators, two 8/16-bit timers plus two 16-bit timers, two CCP modules, an EUSART, dual I2C/SPI, and a full-speed USB 2.0 device with on-chip transceiver supporting up to 32 endpoints (16 bidirectional). The integrated 48 MHz internal oscillator eliminates external crystals for USB operation. XLP technology delivers typical nanoWatt sleep currents below 100 nA. Architecturally, the PIC18F25K50 uses a 16-bit instruction word with 8-bit data path, hardware multiplier, and a 31-level hardware stack. XLP adds ultra-low-power modules including RTCC, ultra-low-power watchdog, and ultra-low-power wake sources, making the part suitable for battery-powered USB HID, sensor hub, and IoT endpoint designs. Typical applications include USB HID peripherals (keyboards, mice, custom input devices), USB-to-UART bridges, sensor hubs with USB enumeration, low-power data loggers, and industrial controls requiring customer USB connectivity. USB bus-powered devices particularly benefit from the integrated PHY and the 5 V-tolerant I/O. When designing with this part, plan the USB D+/D- routing as a 90-ohm differential pair on PCB and ensure the internal regulator (3.3 V or 5 V mode) decoupling follows Microchip guidance. XLP sleep modes require careful peripheral disable sequencing to achieve the datasheet's low quiescent current. This page synthesizes distributor pricing, drop-in alternatives from Microchip's own PIC18F catalog, and practical design notes that go beyond the manufacturer datasheet's typical application circuits.

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PIC18F25K50-I/SO - 32KB Flash USB MCU 48MHz 28-SOIC | Microchip
PIC18F25K50-I/SO

PIC18F25K50-I/SO - 32KB Flash USB MCU 48MHz 28-SOIC | Microchip

The Microchip Technology PIC18F25K50-I/SO is an 8-bit PIC18 microcontroller with 32KB Flash, 2KB RAM, and an integrated USB 2.0 Full-Speed transceiver, housed in a 28-pin SOIC (SO) package. It runs up to 48 MHz and operates from 2.5V to 5.5V on the PIC18 core with 8x8 hardware multiply. According to the verified Microchip product page, the part is in production and ships with XLP (eXtreme Low Power) technology for battery-aware designs. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, working RAM, and peripherals such as timers, ADC, communication ports, and I/O. The PIC18F25K50 belongs to the PIC18 family of RISC microcontrollers, which occupy the mid-tier of the PIC architecture hierarchy (PIC10/12/16 -> PIC18 -> PIC24/dsPIC -> PIC32). Its defining role is the addition of a hardware USB 2.0 Full-Speed device controller, eliminating the need for an external USB PHY in cost-sensitive embedded links. Key features include 32 KB self-read/write Flash, 2 KB RAM, 256 bytes EEPROM, a 10-bit ADC with up to 14 channels, two comparators, Enhanced Capture/Compare/PWM, two USART (one LIN-capable), SPI, I2C, and an internal 48 MHz oscillator tunable against the USB host clock for accuracy. The XLP nanoWatt technology provides sleep currents as low as a few nanoamperies for battery-backed USB devices. USB Suspend/Resume is supported for full USB-IF compliance. Typical applications include USB HID peripherals (keyboards, mice, game controllers), USB-to-UART bridges, low-cost data loggers, sensor interfaces, consumer toys, and industrial control nodes. The 48 MHz core plus USB makes the part well suited when designers need to host a CDC/HID/MSD stack without paying for an ARM Cortex-M0. When designing with this device, ensure the VUSB pin has the recommended 220 nF decoupling and the D+/D- traces are 90-ohm differential length-matched. The internal 48 MHz oscillator is trimmed at the factory, but active clock tuning from the USB host is recommended for jitter-sensitive isochronous endpoints. This page synthesizes drop-in alternatives, comparison data, and practical design notes not found in the manufacturer datasheet.

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PIC18F25K50T-I/ML - 32KB Flash USB MCU 28-QFN | Microchip
PIC18F25K50T-I/ML

PIC18F25K50T-I/ML - 32KB Flash USB MCU 28-QFN | Microchip

The Microchip Technology PIC18F25K50T-I/ML is an 8-bit PIC18 microcontroller delivering 48 MHz CPU performance, 32 KB Flash program memory, 2 KB RAM and a full-speed USB 2.0 device module in a 28-pin QFN (6x6 mm) package. The -T suffix indicates Tape & Reel packaging and the -I grade denotes the -40C to +85C industrial temperature range. A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (Flash), volatile data memory (RAM), and a rich set of peripherals on one die. PIC18 devices from Microchip follow a RISC Harvard architecture with separate program and data buses; the K50 family adds a USB 2.0 full-speed transceiver and Active Clock Tuning that locks the internal 48 MHz oscillator to the USB host frame timing, eliminating the need for an external crystal in many USB applications. Key features include 32 KB self-read/write Flash, 256 bytes of integrated EEPROM, a hardware 8x8 multiplier, two USART/SPI/I2C modules plus a dedicated MSSP for I2C/SPI, a 10-bit ADC with up to 14 channels, and eXtreme Low Power (XLP) sleep currents. The integrated USB 2.0 module supports control, interrupt, bulk and isochronous transfers for CDC/HID/MSC device classes without external transceiver hardware. Typical applications include USB HID peripherals (keyboards, mice, custom input devices), USB-to-UART bridge dongles, USB CDC virtual COM ports, USB-capable sensor nodes, low-power battery-powered instruments, and small appliances with USB firmware upgrade ports. When migrating from PIC18F24K50 or PIC18F26K50 designs the pin-out is preserved within the 28-QFN package. A practical design tip: route the D+/D- USB differential pair with 90-ohm differential impedance and keep total length below 50 mm to meet USB 2.0 signal-quality compliance; Active Clock Tuning only operates while the USB module is active. This page synthesizes distributor pricing, drop-in package-compatible alternatives, and design notes not found in the manufacturer datasheet.

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PIC18F25K50T-I/SO - 32KB Flash USB 8-bit MCU 48MHz SOIC-28 | Microchip
PIC18F25K50T-I/SO

PIC18F25K50T-I/SO - 32KB Flash USB 8-bit MCU 48MHz SOIC-28 | Microchip

The Microchip Technology PIC18F25K50T-I/SO is a high-performance 8-bit PIC microcontroller from the PIC18 XLP 18K family, integrating a full-speed USB 2.0 transceiver and 32 KB of Flash program memory in a 28-pin SOIC package. The 'T' suffix denotes tape-and-reel packaging, while 'I' indicates the industrial -40C to +85C temperature range and 'SO' specifies the 300-mil 28-SOIC footprint. The CPU runs up to 48 MHz delivering 16 MIPS throughput from an enhanced RISC architecture, with 200 ns instruction execution. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, integrating a CPU, RAM, Flash program memory, EEPROM, and programmable peripherals. PIC18F-series MCUs sit in Microchip's mainstream 8-bit tier, above baseline PIC16 devices but below dsPIC and 32-bit families, and are widely used for cost-sensitive embedded control with USB connectivity requirements. Key features of the PIC18F25K50 include a built-in USB 2.0 Full-Speed transceiver with on-chip pull-up resistors (no external crystal required for low-speed USB), 25 programmable I/O pins, 2 KB of SRAM, 256 bytes of EEPROM, two 8-bit timers, three CCP/ECCP modules, two MSSP (SPI/I2C) peripherals, two EUSART modules, a 10-bit ADC with 14 channels, and nanoWatt XLP extreme-low-power technology that drops current consumption into the nanoampere range during sleep. The ICSP (In-Circuit Serial Programming) interface allows in-target firmware updates via two I/O pins. The device operates from 2.3 V to 5.5 V supply, supporting battery-powered and USB bus-powered designs. Its integrated USB eliminates the external USB-to-UART bridge typically required on 8-bit MCUs, reducing BOM cost and PCB area in USB peripherals such as HID input devices, CDC virtual COM ports, and human-interface adapters. Typical applications include USB HID peripherals (keyboards, mice, game controllers), USB-to-serial adapters, USB sensor interfaces, low-power IoT sensor nodes, industrial control with USB diagnostics, and battery-powered data-logging accessories. The 'T' tape-and-reel suffix indicates this specific variant is intended for high-volume SMT production lines. When designing with this part, ensure the VUSB pin has a 220 nF decoupling capacitor to ground and a 1 uF bulk cap on VDD. Configure the internal 48 MHz PLL correctly for USB operation, and confirm that the chosen clock mode (INTIO vs. HS crystal) matches USB full-speed timing requirements per the datasheet's oscillator configuration table. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes that complement the manufacturer datasheet, giving engineers a single-source view for sourcing, replacement, and application guidance.

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