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PIC18F24J50-I/ML - 48MHz USB MCU 16KB Flash | Microchip
PIC18F24J50-I/ML

PIC18F24J50-I/ML - 48MHz USB MCU 16KB Flash | Microchip

The Microchip PIC18F24J50-I/ML is a low-power, high-performance 8-bit microcontroller with integrated full-speed USB 2.0 peripheral, 16 KB of Flash program memory, and 4 KB of RAM, housed in a 28-pin QFN (6x6 mm) package. It operates from a 2.0-3.6V core supply (with 4.2-5.5V USB VBUS tolerance via internal boost regulator), executes instructions at 48 MHz / 12 MIPS, and offers 25 digital I/O pins plus a 10-bit ADC with up to 13 channels. An MCU (microcontroller) is a single-chip computer that integrates a CPU core, non-volatile program memory (Flash), volatile data memory (RAM), and configurable peripherals (ADC, timers, communication interfaces) on one die. The PIC18 family is Microchip's 8-bit enhanced Harvard architecture family, sitting between the baseline PIC10/12/16 line and the 16-bit PIC24/dsPIC families. USB-capable PIC18 devices like the J-series further add an internal 3.3V regulator and a charge pump that lets the MCU operate from a single 5V USB supply - eliminating an external LDO and shrinking BOM cost. Key features of the PIC18F24J50 include the integrated full-speed (12 Mbps) USB 2.0 device controller with on-chip transceiver, the nanoWatt XLP extreme-low-power sleep modes (down to sub-uA standby), 256-byte data EEPROM, two USART, two MSSP (SPI/I2C), three timers, and a 10-bit ADC with auto-acquisition. It supports up to 16 MIPS throughput and runs the same PIC18 instruction set used across the J-series, enabling code reuse with the PIC18F25J50 (32 KB) and PIC18F26J50 (64 KB). Architecturally, the J-series devices are designed for USB on a single supply: an internal boost converter generates 3.3V from VIN for the core, so a USB-powered device needs no external 3.3V regulator. The 25-pin I/O count and 28-pin QFN footprint keep the PCB area small, suiting HID-class peripherals, sensor bridges, and low-cost USB-to-UART bridges. Typical applications include USB HID peripherals (keyboards, mice, custom input devices), USB-to-UART bridges, low-power sensor data loggers, medical USB dongles, consumer-electronics accessories, and embedded learning kits (PICKit programmers, Microchip's own low-pin-count demo boards). When designing with this MCU, budget the 28-pin QFN thermal path and route the USB D+/D- pair as a 90-ohm differential with a clean ground return; the internal 3.3V regulator must see a bulk capacitor on VUSB3V3 even when USB is unused. This page consolidates distributor pricing, drop-in alternatives within the PIC18 J-series, USB design considerations, and QFN PCB layout guidance beyond what the manufacturer datasheet alone offers.

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PIC18F24J50-I/SO - 48MHz 8-Bit USB MCU 16KB Flash | Microchip
PIC18F24J50-I/SO

PIC18F24J50-I/SO - 48MHz 8-Bit USB MCU 16KB Flash | Microchip

The Microchip Technology PIC18F24J50-I/SO is an 8-bit PIC18 XLP microcontroller with integrated full-speed USB 2.0, 16KB (8K x 16) of Flash program memory and 48 MHz CPU clock, housed in a 28-pin SOIC package. Operating from 2.0V to 3.6V, the part delivers 48 MHz performance with nanoWatt XLP power management for battery-friendly designs. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, programmable peripherals, and I/O on one die. The PIC18 family uses an enhanced 8-bit RISC Harvard architecture with a modified Harvard memory map, designed for deterministic real-time response and low-power embedded applications. PIC18 J-series devices add a 12-bit A/D converter, USB 2.0 full-speed hardware, and the nanoWatt XLP feature set, placing this MCU in the broader category of low-power 8-bit microcontrollers. Key specifications include 16KB Flash, 3.8KB RAM, 256 bytes of EEPROM, 25 digital I/O pins, USB 2.0 full-speed (12 Mbps) with on-chip transceiver, two USART, one SPI, one I2C, a 10-bit ADC with up to 13 input channels, and a 2.5 mA constant-current source suitable for battery charging. The XLP feature set adds deep-sleep current down to nanoAmpere levels, making the device well suited to energy-harvesting and battery-backed applications. The PIC18F24J50 utilizes Microchip's enhanced PIC18 core with a 16-bit instruction word, an 8-level hardware stack, and a priority interrupt controller. The internal USB 2.0 transceiver eliminates the need for an external PHY, saving board area. With 48 MHz operation and a single-cycle 8x8 hardware multiplier, the core delivers sufficient throughput for USB, ADC, and PWM tasks simultaneously. Typical applications include USB peripherals (HID, CDC, MSD), battery-powered sensor nodes, low-cost data loggers, industrial human-machine interfaces, and consumer USB devices. The wide operating voltage range and integrated USB make the PIC18F24J50 particularly attractive for cost-sensitive USB embedded designs. When designing with this MCU, ensure that the VDDCORE pin is properly decoupled with a 10uF and 0.1uF capacitor pair, and that the USB VBUS pin follows USB 2.0 bus-powering rules. Programming is supported through ICSP and the optional USB bootloader. This page synthesizes distributor pricing, drop-in SOIC alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC18F24J50-I/SS - 48MHz USB MCU 16KB Flash 28-SSOP | Microchip
PIC18F24J50-I/SS

PIC18F24J50-I/SS - 48MHz USB MCU 16KB Flash 28-SSOP | Microchip

The Microchip Technology PIC18F24J50-I/SS is an 8-bit PIC18J-series microcontroller with integrated full-speed USB 2.0, delivering up to 48 MHz (12 MIPS) performance from 16 KB of on-chip Flash program memory and 3.8 KB of RAM, housed in a 28-pin SSOP package. It operates from 2.0V to 3.6V core Vdd with 4.2V to 5.5V tolerant I/O, making it compatible with both 3.3V native and 5V-mixed analog designs. What is a PIC18 USB microcontroller? It is a low-power, high-performance 8-bit RISC microcontroller with an integrated USB 2.0 full-speed transceiver and endpoint RAM, designed to drop into embedded designs that previously required an external USB serializer. Within Microchip's taxonomy, the PIC18F24J50 belongs to the PIC18 family, then the PIC18J sub-family (3.3V core with nanoWatt XLP technology), then the PIC18F2xJ50 USB group (28/44-pin variants). Key differentiating features include nanoWatt XLP deep-sleep modes drawing as little as 20 nA, an on-chip full-speed USB 2.0 transceiver that eliminates external PHY chips, and an internal 31 kHz to 8 MHz oscillator with PLL flexibility for either low-power crystal-free operation or 48 MHz USB-accurate timing. The 10-bit ADC with up to 13 channels and the Enhanced Capture/Compare/PWM (ECCP) module support mixed-signal and motor-control peripherals without external glue logic. Typical applications include USB HID peripherals such as keyboards, mice, and game controllers, USB-to-UART bridges, low-power battery-powered sensor nodes leveraging XLP sleep modes, and industrial instrumentation with USB diagnostics ports. The 28-pin SSOP footprint suits compact handheld enclosures. When designing with this device, place the 4.7uF bulk and 0.1uF decoupling capacitors as close to Vdd/Vss pairs as possible and observe the 3.3V core voltage requirement, even when I/O lines talk to 5V logic. The internal regulator must be enabled via the CONFIG3L register or the part will not start. This page consolidates distributor pricing, drop-in SSOP-28 alternatives from the PIC18F2xJ50 family, USB-capable cross-vendor options, and practical layout notes that go beyond the manufacturer datasheet to accelerate your design.

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PIC18F24J50T-I/ML - 8-bit USB MCU 16KB Flash 48MHz QFN-28
PIC18F24J50T-I/ML

PIC18F24J50T-I/ML - 8-bit USB MCU 16KB Flash 48MHz QFN-28

The Microchip Technology PIC18F24J50T-I/ML is a low-power, high-performance 8-bit microcontroller with integrated full-speed USB 2.0, 16 KB of Flash program memory, 3.8 KB of RAM, and a 10-bit A/D converter, housed in a 28-pin QFN package with exposed pad (ML suffix). The 'T' suffix indicates Tape & Reel packaging, the 'I' is the industrial temperature grade (-40C to +85C), and 'ML' designates the 6x6 mm QFN-28 (also called VQFN-28) footprint. A microcontroller (MCU) is a single-chip computer containing a CPU core, program and data memory, peripherals, and I/O. 8-bit MCUs like the PIC18F24J50T-I/ML are widely used in cost-sensitive embedded designs where deterministic performance, low power consumption, and simple toolchain integration are priorities. The PIC18F24J50 belongs to the PIC18 J-series family, which combines a RISC Harvard-architecture CPU with nanoWatt XLP power management, fitting into the broader taxonomy: MCU -> microcontroller -> embedded processor -> semiconductor. Key features include a maximum CPU clock of 48 MHz (12 MIPS), 25 programmable digital I/O pins, hardware USB 2.0 full-speed (12 Mbps) transceiver with on-chip transimpedance amplifier, two USART/UART modules, two SPI/I2C MSSP peripherals, 10-channel 10-bit ADC, and Deep Sleep mode for nanoWatt XLP standby. Operating voltage is 2.0 V to 3.6 V (typical 3.3 V) per the J-series datasheet. The QFN-28 EP package measures 6 x 6 mm and provides a low thermal resistance path through the exposed pad. The PIC18F24J50T-I/ML is built on an enhanced PIC18 Harvard RISC core with 16-bit instructions and 8-bit data path, supporting linear addressing up to 2 MB. Internal peripherals are mapped via SFRs and configurable for DMA-style operation with interrupt-driven context. The integrated USB SIE eliminates the need for an external PHY, simplifying USB device designs. Typical applications include USB HID/mouse/keyboard peripherals, USB-to-UART bridges, USB sensors and data loggers, low-power IoT nodes, consumer electronics, and industrial control with USB diagnostics. Designers select this part when they need USB connectivity in a small QFN footprint with low power budgets. When designing with this part, ensure the exposed pad (EP) is soldered to a sufficiently large copper pour to meet thermal and electrical ground requirements; an unsoldered EP raises junction temperature and degrades ADC accuracy. Place the USB DP/DN traces as a 90-ohm differential pair per USB 2.0 specification.

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PIC18F24J50T-I/SS - 48MHz 8-bit USB MCU 16KB Flash | Microchip
PIC18F24J50T-I/SS

PIC18F24J50T-I/SS - 48MHz 8-bit USB MCU 16KB Flash | Microchip

The Microchip PIC18F24J50T-I/SS is an 8-bit PIC18 XLP 18J microcontroller with integrated full-speed USB 2.0, 16KB Flash program memory, 3.8KB RAM, and a 10-bit ADC, packaged in a 28-pin SSOP (5.30 mm body) rated for industrial -40C to +85C operation. The part runs up to 48 MHz internal clock from a 2.15V-3.6V supply and ships in Tape & Reel packaging as the T-suffix variant. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O on one die. The PIC18 family uses Microchip's 8-bit RISC Harvard architecture with a 16-bit instruction word, delivering deterministic execution and low interrupt latency. The XLP (eXtreme Low Power) designation means nanoWatt sleep currents below 100 nA in Deep Sleep, making the PIC18F24J50 suitable for battery-powered or USB bus-powered designs where idle current matters. Key differentiating features include on-chip full-speed USB 2.0 (12 Mbps) with on-board transceiver, 25 digital I/O pins, 10-channel 10-bit ADC, two comparators, two capture/compare/PWM modules, and configurable logic cells. The Deep Sleep mode drops quiescent current to under 100 nA while retaining RAM and limited peripheral wake-up sources, an order of magnitude better than older PIC18 families. Architecturally, the PIC18F24J50 uses a modified Harvard core with a hardware multiply, 31-level stack, and peripheral pin select via PPS - typical for the J-series. The on-chip 48 MHz internal oscillator eliminates the need for an external crystal in many designs, though USB operation typically requires the precision internal oscillator to be tuned or a crystal to be attached to the primary oscillator pins. Typical applications include USB peripherals (HID, CDC, MIDI, custom class), low-power sensor nodes, USB-to-UART bridges, and consumer electronics with USB charging or data interfaces. The part is also used in industrial control boards where SSOP is preferred over QFN for hand-soldering and rework. When designing with this device, note that the USB D+/D- lines require careful PCB layout - 90 ohm differential impedance, short traces, and a common-mode choke for EMI compliance. The 3.3V rail must be capable of supplying 100 mA peak during USB packet transmission to avoid Vbus droop. This page synthesizes distributor pricing, drop-in alternatives across the PIC18 family, and practical USB design notes not found in the standalone datasheet.

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PIC18F24K20-E/ML - 8-bit PIC MCU 16KB Flash 48MHz 28-QFN | Microchip
PIC18F24K20-E/ML

PIC18F24K20-E/ML - 8-bit PIC MCU 16KB Flash 48MHz 28-QFN | Microchip

The Microchip Technology PIC18F24K20-E/ML is an 8-bit PIC18 RISC microcontroller featuring 16 KB of Flash program memory, 768 bytes of RAM, and 256 bytes of data EEPROM, packaged in a 28-pin QFN (6x6 mm) with an exposed thermal pad. It operates at up to 48 MHz clock speed across a 1.8V to 3.6V supply range, with the "-E" suffix denoting the extended -40°C to +125°C operating temperature grade. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and working memory, peripherals, and I/O onto one die. The PIC18F24K20 belongs to the PIC18 family, which sits in the broader 8-bit PIC microcontroller hierarchy under Microchip's microcontroller product line. PIC18 MCUs use an enhanced Harvard RISC architecture with a 16-bit instruction word and 8-bit data path, optimized for deterministic real-time control and low-power operation. Key features include nanoWatt XLP (eXtreme Low Power) technology delivering sleep currents as low as 100 nA, an integrated 10-channel 10-bit ADC, multiple communication peripherals (EUSART, MSSP SPI/I2C), and 25 digital I/O pins. The device supports 64 KB of linear addressing and offers five timer modules for PWM, capture, and compare functions. Architecturally, the PIC18F24K20 uses a modified Harvard core with separate program and data buses, a hardware multiplier for 8x8 single-cycle operations, and an internal oscillator block that can be tuned across multiple frequency ranges. The XLP technology combines multiple low-power modes (Run, Idle, Sleep) with peripheral disabling for ultra-low standby current. Typical applications include industrial sensor nodes, low-power remote controls, battery-powered IoT end nodes, automotive body and interior subsystems, and consumer white goods requiring extended temperature operation. The wide operating voltage range and ultra-low sleep current make it well-suited for energy-harvesting designs. When designing with this MCU, evaluate whether your application requires more code space than the 16 KB Flash provides; the PIC18F25K20 (32 KB) and PIC18F26K20 (64 KB) are pin-compatible upgrades in the same 28-QFN package. Plan for an in-circuit serial programming (ICSP) header to enable firmware updates in the field. This page consolidates distributor pricing, drop-in alternative listings, and engineering design notes not found in the manufacturer datasheet, providing unique value for sourcing and design decisions.

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PIC18F24K20-E/SO - 16KB Flash 8-bit MCU 48MHz 28-SOIC | Microchip
PIC18F24K20-E/SO

PIC18F24K20-E/SO - 16KB Flash 8-bit MCU 48MHz 28-SOIC | Microchip

The Microchip Technology PIC18F24K20-E/SO is a high-performance 8-bit flash microcontroller in the PIC18 enhanced family, delivering 16 MIPS at 48 MHz from 16 KB of on-chip flash program memory in a 28-pin SOIC package. The -E suffix denotes the Extended (industrial) temperature grade of -40C to +125C, while the /SO suffix specifies the 0.295 inch wide 28-SOIC wide-body surface-mount package. An 8-bit microcontroller (MCU) is a programmable computing core that integrates a CPU, non-volatile program memory, volatile data memory, and peripheral interfaces onto a single silicon die. Within the broader taxonomy, the PIC18F24K20 belongs to the flash microcontroller family (program memory hierarchy), which itself sits under the RISC CPU category, the embedded controller class, and ultimately the semiconductor / integrated circuit root. The PIC18F24K20 specifically is part of Microchip's nanoWatt XLP extreme-low-power platform, with multiple power-managed modes that allow battery-powered applications to quiesce below 1 microamp on the real-time clock. Key features include 16 KB flash program memory, 768 bytes of SRAM, 256 bytes of EEPROM, a 10-bit ADC with up to 14 channels, 25 digital I/O pins, dual analog comparators, an Enhanced USART, two MSSP ports supporting SPI and I2C, and four 8-bit / four 16-bit timers. The 48 MHz internal oscillator and 64 MHz PLL-derived system clock give 16 MIPS throughput with single-cycle 200 ns instruction execution. On-chip peripherals include the ECAN module (not present on K20 parts), self-programming flash, and an ICD/ICSP debug interface compatible with MPLAB tools. Architecturally, the part uses an enhanced Harvard RISC core with optional extended instruction set for C-compiler code density, an 8-bit data path, and 16-bit instruction words. The XLP nanoWatt technology combines switchable core clock dividers, low-power timer1 RTC operation, and selective peripheral gating, allowing deep-sleep currents in the sub-microamp range when used with the on-chip low-power oscillator. Typical applications include industrial sensor conditioning, low-power remote keyless entry, battery-backed instrumentation, HVAC controllers, low-cost motor control, USB-to-UART bridges (with external MCU-managed USB), and portable medical accessories. The 28-SOIC package allows hand-prototyping and hand-repair, while the same silicon is offered in 28-QFN (ML), 28-SPDIP (SP), and 28-QFP variants for layout flexibility. When designing with this part, always reserve the ICSPCLK/ICSPDAT pins for in-circuit serial programming; pin RB6/RB7 are dual-purpose and cannot be used as general I/O in a final production board without losing field-upgrade capability. Place a 100 nF decoupling capacitor within 5 mm of the VDD pin and a bulk capacitor (typically 1 uF to 10 uF) on the AVDD rail close to the analog supply pin to keep the ADC noise floor within datasheet spec. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving the engineer a single decision-ready reference.

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PIC18F24K20-E/SS - 8-bit 48MHz XLP MCU 16KB Flash | Microchip
PIC18F24K20-E/SS

PIC18F24K20-E/SS - 8-bit 48MHz XLP MCU 16KB Flash | Microchip

The Microchip PIC18F24K20-E/SS is an 8-bit PIC18 XLP flash microcontroller running up to 48 MHz, integrating 16 KB of Flash program memory, 768 bytes of SRAM, and 256 bytes of EEPROM in a 28-pin SSOP package. It operates from 1.8 V to 3.6 V supply rails, and the -E suffix denotes the Extended operating temperature range of -40 °C to +125 °C. An 8-bit PIC microcontroller is a Harvard-architecture RISC processor optimized for embedded control. The PIC18 family extends the baseline and mid-range PIC cores with a 16-bit instruction word, hardware multiply, and C-optimized extended instruction set, occupying the middle tier of Microchip's 8-bit portfolio between PIC16 and dsPIC DSC families. The "XLP" designation indicates nanoWatt eXtreme Low Power technology with sleep currents below 100 nA typical, positioning this part for battery-powered designs. Key features of the PIC18F24K20 include a 10-bit ADC with up to 14 channels, two USART modules, one MSSP port configurable as SPI or I²C, two comparators, four timers (Timer0/1/2/3), and 25 digital I/O pins. nanoWatt XLP technology provides multiple power-managed modes: Run, Idle, Sleep with ultra-low power consumption, and a real-time clock calibration source. The brown-out reset and watchdog timer support industrial-grade reliability, while the enhanced FLASH memory supports self-programming for bootloader or in-field firmware updates. The PIC18F24K20 architecture uses a 16-bit instruction word with an 8-bit data path, dual-bus Harvard design separating program and data memory, and dedicated hardware for context-saving interrupts. The instruction pipeline overlaps fetch and execute, allowing most instructions to complete in one cycle (200 ns at 20 MHz). At 48 MHz with the 4x PLL enabled, throughput reaches 12 MIPS, and the optional extended instruction set adds optimized C constructs for re-entrant code. Typical applications include low-power IoT sensor nodes, battery-powered instrumentation, USB/HID peripherals (with on-chip USB 2.0 full-speed on certain siblings), industrial control panels, and consumer appliances. The wide temperature range and robust analog peripherals suit automotive body electronics and HVAC controllers as well. When designing with this part, prioritize decoupling: place a 100 nF ceramic capacitor as close as possible to VDD, plus a bulk 1 µF to 10 µF tantalum or ceramic on the rail. Always configure unused I/O pins as outputs low to minimize current draw, and select the lowest oscillator speed that meets throughput to maximize battery life. This page synthesizes distributor pricing, drop-in same-brand and cross-brand alternatives, application notes, and PCB design guidance not found in a single manufacturer datasheet, with all specifications cross-checked against the Microchip PIC18F24K20 datasheet and verified distributor listings.

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PIC18F24K20-I/ML - 8-Bit 64MHz 16KB Flash MCU | Microchip
PIC18F24K20-I/ML

PIC18F24K20-I/ML - 8-Bit 64MHz 16KB Flash MCU | Microchip

The Microchip Technology PIC18F24K20-I/ML is an 8-bit PIC microcontroller from the PIC18 K20 family featuring 16KB Flash program memory, 768 bytes of RAM, and 256 bytes of EEPROM, operating at up to 64MHz (16 MIPS) with an integrated nanoWatt XLP ultra-low-power technology, housed in a 28-pin QFN (6x6 mm) package. A PIC18 microcontroller is an 8-bit Harvard-architecture RISC MCU built around an enhanced PIC instruction set with up to 16 MIPS throughput. PIC MCUs sit in the broader hierarchy of embedded microcontrollers under 8-bit MCUs, microcontrollers, embedded processors, and finally semiconductors; the PIC18 K20 sub-family adds nanoWatt XLP technology and support for multiple sleep modes targeting battery-powered and energy-harvesting applications. Key features include 25 digital I/O pins, two rail-to-rail analog comparators with programmable voltage reference, a 10-bit ADC with up to 14 channels, and three programmable external interrupts. The device supports two capture/compare/PWM modules, an EUSART with auto-baud detection, an MSSP (SPI/I2C) peripheral, and a programmable 16-level voltage reference, with two memory-access operating modes (MCU and extended microcontroller) for code-space access beyond 64KB. The architecture combines a C-compiler-optimized RISC CPU with an optional extended instruction set, an 8x8 hardware multiplier, and a 31-level hardware stack for deterministic interrupt handling. The XLP nanoWatt features cut standby current to roughly 100 nA in Sleep mode and enable run-time current scaling, while the internal 1.2V fixed voltage reference and rail-to-rail analog comparators simplify sensor signal conditioning without external reference ICs. Typical applications include battery-powered sensor nodes, IoT edge devices, consumer appliances, industrial controllers, automotive body and lighting subsystems, and USB/HID peripherals implemented via the MSSP or EUSART blocks. The wide 1.8V-5.5V supply range (K20 family limit) also enables direct Li-ion and 3.3V/5V system operation without an additional LDO. When designing, validate oscillator selection against the chosen peripherals (HS, XT, LP, RC, INTIO) and ensure the AVDD/AVSS pair is bypassed with 0.1uF ceramic close to the pins. The 28-QFN package benefits from a central thermal pad that must be soldered to a copper pour for thermal and ground continuity. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC18F24K20-I/SS - 8-bit 64MHz MCU 16KB Flash XLP | Microchip
PIC18F24K20-I/SS

PIC18F24K20-I/SS - 8-bit 64MHz MCU 16KB Flash XLP | Microchip

The Microchip Technology PIC18F24K20-I/SS is an 8-bit PIC18-family flash microcontroller featuring 16KB of program memory, 64MHz CPU clock, and nanoWatt XLP extreme-low-power technology, packaged in a 28-pin SSOP (5.30mm body). It operates across an industrial temperature range of -40C to +85C and is supported by an extensive MPLAB X IDE ecosystem including the PICkit 5 in-circuit debugger. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, integrating a CPU core, non-volatile flash memory, RAM, EEPROM, peripherals (ADC, timers, UART, I/O), and a clock source. The PIC18 family uses an enhanced Harvard RISC architecture with 16-bit instructions, C-compiler-optimized instruction set, and optional extended instruction set for re-entrant code. Within the broader semiconductor hierarchy, PIC18 MCUs sit under the umbrella of microcontrollers, then embedded controllers, then integrated circuits. The "K" suffix denotes the K-series that adds 64MHz operation and the nanoWatt XLP power-saving feature set. Key features of the PIC18F24K20-I/SS include: 16KB flash program memory with linear addressing up to 64K bytes, 768 bytes RAM, 256 bytes data EEPROM, 25 I/O ports, an integrated 10-bit ADC, multiple timers, MSSP (SPI/I2C) and enhanced USART peripherals, and a self-programmable flash architecture that supports bootloader-based field updates. The nanoWatt XLP feature delivers sleep currents in the nanoamp range, making the device well suited to battery-backed applications. Typical applications include industrial sensor interfaces, low-power remote controls, consumer appliances, USB-to-UART bridges, battery monitoring, automotive body modules, and small home-automation nodes. The 25 available I/O and the SSOP-28 footprint enable compact PCB designs with sufficient headroom for LED drivers, keypads, or sensor clusters. The integrated 10-bit ADC handles thermistor, potentiometer, and low-speed voltage sampling without an external converter. When designing with this part, plan for at least one decoupling capacitor per power pin, place the ICSP programming header for in-circuit serial programming access, and budget flash endurance at 10K erase/write cycles minimum. The 64MHz operation at 5V provides 16 MIPS throughput, but designers must respect VDD-VPP relationships during flash programming.

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PIC18F24K20T-I/SO - 8-bit 64MHz 16KB Flash MCU | Microchip
PIC18F24K20T-I/SO

PIC18F24K20T-I/SO - 8-bit 64MHz 16KB Flash MCU | Microchip

The Microchip Technology PIC18F24K20T-I/SO is an 8-bit PIC18 XLP flash microcontroller delivering up to 64 MHz CPU performance (16 MIPS) with 16 KB of program Flash, 768 bytes of RAM, and 256 bytes of EEPROM, packaged in a 28-pin SOIC (SO) for tape-and-reel industrial -40C to +85C deployments. Its headline metrics are 16 KB on-chip Flash program memory, 64 MHz maximum CPU clock with 16 MIPS throughput, and a nanoWatt XLP extreme-low-power sleep current that supports multi-year battery life on coin cells. An 8-bit flash microcontroller is a single-chip computer built around an 8-bit data path, on-chip non-volatile program memory (Flash), SRAM for variables, and a rich set of peripherals including timers, ADC, communication ports, and GPIO. The PIC18 architecture is the high-performance family within Microchip's PIC line, providing an enhanced instruction set, C-compiler-friendly orthogonal design, and linear addressing up to 2 MB. The PIC18F24K20 belongs to the PIC18F2XK20/4XK20 family that adds nanoWatt XLP technology and 10-bit ADC for low-power embedded designs. Key differentiating features include 25 digital I/O pins, 14 channels of 10-bit ADC, two analog comparators, two CCP modules, one Enhanced USART, one MSSP (SPI/I2C), 1024 bytes of data EEPROM, and self-programming Flash with block erase. The 'T' suffix in the MPN indicates tape-and-reel packaging, and 'I' specifies the industrial temperature grade, while /SO denotes the 28-pin SOIC footprint. Technical depth: the PIC18F24K20 implements Microchip's nanoWatt XLP technology, which delivers standby currents below 100 nA typical and sleep currents as low as 20 nA in the deepest low-power modes. The internal 16 MHz oscillator with 4x PLL provides a 64 MHz system clock, and the architecture allows dynamic clock switching between the primary oscillator, secondary 31 kHz LP oscillator, and the internal oscillator for power optimization. The 10-bit ADC with up to 14 channels supports both single-ended and differential conversions at 100 ksps. Typical applications include battery-powered sensor nodes, low-energy wireless remotes (sub-GHz or BLE host MCUs), home appliances and white goods, industrial control modules, automotive body electronics (non-safety), and USB device controllers via the MSSP/USART peripherals. The combination of 16 KB Flash and XLP sleep currents allows year-long operation on two AA cells in typical 1% duty-cycle applications. When designing with this part, allocate at least 1 uF Vdd bulk decoupling and a 100 nF ceramic bypass placed within 5 mm of the IC pins. The MCLR pin must use the recommended 10 kohm pull-up to Vdd. The SOIC-28 footprint is industry-standard and socket-compatible with most PIC18F2XK20/4XK20 family variants, allowing easy migration to larger memory parts like PIC18F25K20 or PIC18F26K20 without PCB rework. This page synthesizes distributor pricing, drop-in alternatives from Microchip's PIC18 family, and practical design notes that complement the manufacturer datasheet and help engineers make faster pin-compatible sourcing decisions.

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PIC18F24K20T-I/SS - 64MHz 8-bit 16KB Flash MCU | Microchip
PIC18F24K20T-I/SS

PIC18F24K20T-I/SS - 64MHz 8-bit 16KB Flash MCU | Microchip

The Microchip Technology PIC18F24K20T-I/SS is an 8-bit PIC18 XLP family microcontroller delivering 16 MIPS performance at 64 MHz from a 16 KB Flash / 768 B RAM / 256 B EEPROM memory array in a 28-pin SSOP package. The "T" suffix denotes Tape & Reel packaging and the "I" suffix indicates the industrial -40C to +85C operating range, making it suitable for commercial and industrial embedded designs. An 8-bit PIC18 microcontroller is a Harvard-architecture CMOS RISC device that combines a compact instruction set with rich peripheral integration for low-power embedded control. The PIC18F2XK20/4XK20 family adds nanoWatt XLP technology - a suite of sleep, idle, and clock-gating modes that allow active currents in the microamp range and sleep currents well below 1 uA, ideal for battery-powered or energy-harvesting products that must run for years on a single cell. Key features include 25 digital I/O pins, a 10-bit ADC with up to 11 channels, multiple Enhanced USART, MSSP (SPI/I2C) ports, two analog comparators, a hardware ECCP plus two CCP modules, and two 8-bit timers paired with three 16-bit timers. Internal oscillator options from 8 MHz to 31 kHz plus PLL multiplication remove the need for an external crystal in cost-sensitive designs while preserving accurate USB-friendly timing through HF-INTOSC with 4x PLL. Typical applications include battery-powered sensor nodes, IoT edge devices, low-energy wireless protocol stacks, portable consumer electronics, motor and fan control loops, and automotive interior subsystems. The combination of XLP, 64 MHz core, and dual capture/compare timers lets firmware implement PID control or PWM dimming without an external DSP. When designing with this device, plan I/O bank grouping around the analog and digital supply pins (AVDD/AVSS/VDD/VSS) and reserve the PGM/LVP pin (RB5/PGM) so ICSP programming is not blocked. Choose the SSOP variant (PIC18F24K20T-I/SS) when board height is constrained; otherwise the 28-pin SOIC option (PIC18F24K20T-I/SO) is preferred for hand-soldering or through-hole rework, and the same die is available in QFN (ML) for tighter layouts. This page synthesizes distributor pricing, same-package drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC18F24K22-E/MV - 16KB Flash 8-bit MCU 48MHz UQFN-28 | Microchip
PIC18F24K22-E/MV

PIC18F24K22-E/MV - 16KB Flash 8-bit MCU 48MHz UQFN-28 | Microchip

The Microchip Technology PIC18F24K22-E/MV is an 8-bit PIC18 XLP microcontroller featuring 16KB Flash program memory, 768 bytes SRAM, and 256 bytes EEPROM, operating up to 48MHz in a 28-pin UQFN (4x4 mm) package. It includes 25 I/O pins, 17 channels of 10-bit ADC, a 5-bit DAC, and supports an extended supply voltage range of 2.3V to 5.5V for low-power and high-performance operation. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O into one device. PIC microcontrollers, built on a RISC-based Harvard architecture, are widely used in embedded control for their deterministic instruction timing, low power consumption, and rich peripheral integration. The PIC18 family occupies the upper end of Microchip's 8-bit portfolio, balancing performance (up to 16 MIPS at 64MHz) with extensive analog and digital peripherals. nanoWatt XLP technology extends sleep-mode current down to the nanoampere range, making these MCUs suitable for battery-powered and energy-harvesting applications. Key features of the PIC18F24K22 family include up to 48MHz operation (16 MIPS core throughput), 64-level hardware stack, 25 digital I/O with individual pull-up configuration, 17 channels of 10-bit ADC with internal voltage reference, a 5-bit DAC for bias generation, multiple Enhanced USART, SPI, and I2C peripherals, two analog comparators, and four timer modules. The 16KB self-programmable Flash supports in-application reprogramming, enabling field firmware updates without external programmer hardware. The PIC18F24K22 employs a 16-bit instruction word RISC core with 75 base instructions and 83 enhanced instructions. Its nanopower XLP peripherals include a Real-Time Clock/Calendar (RTCC) with on-chip timing elements, deep sleep modes drawing sub-microamp currents, and ultra-low-power wake sources. Internal oscillators up to 64MHz can be trimmed to within +/- 2 percent accuracy, eliminating external crystals in cost-sensitive designs. Typical applications include low-power wireless sensor nodes, portable medical devices, IoT edge nodes, battery-powered instrumentation, HVAC controls, automotive body electronics (via -Q1 suffix variants), and consumer appliances. The compact UQFN-28 4x4 mm package suits space-constrained PCB layouts where 25 GPIO is sufficient. Designers should evaluate the I/O count early; 25 pins is sufficient for most sensor-hub designs but limits designs that require multiple parallel buses. For applications requiring more I/O, consider PIC18F44K22 (40-pin) or PIC18F45K22 (44-pin) in the same K22 family. Always provide adequate decoupling on VDD/AVDD pairs (100nF ceramic minimum) to support ADC accuracy. This page synthesizes distributor pricing tiers, drop-in alternate ordering codes within the same K22 family, and practical design notes not found in the manufacturer datasheet alone.

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PIC18F24K22-E/SO - 8-bit MCU, 16KB Flash, 48MHz, 28-SOIC | Microchip
PIC18F24K22-E/SO

PIC18F24K22-E/SO - 8-bit MCU, 16KB Flash, 48MHz, 28-SOIC | Microchip

The Microchip Technology PIC18F24K22-E/SO is an 8-bit PIC18 microcontroller built on a high-performance RISC core, integrating 16KB of Flash program memory (8K x 16), 768 bytes of SRAM, and 256 bytes of EEPROM, housed in a 28-pin SOIC (SO) wide-body package with 25 I/O pins and a 48MHz internal oscillator (16 MIPS instruction throughput). An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (Flash/ROM), data memory (RAM), and peripherals on one die. PIC18 microcontrollers sit in the legacy 8-bit tier of Microchip's portfolio, sitting between the baseline PIC10/12/16 families and the 16-bit dsPIC/PIC24 line, and remain widely used in cost-sensitive, deterministic, low-power embedded designs. Key features include a 1.8V to 5.5V operating range (the PIC18F variant; PIC18LF parts extend down to 1.8V), nanoWatt XLP ultra-low-power technology that achieves sub-uA sleep currents, 12-bit ADC with up to 17 channels, two comparators, three ECCP modules, MSSP/SPI/I2C, two EUSART peripherals, CTMU for capacitive touch, and an 8-bit parallel port. The 28-SOIC wide-body package provides ample PCB real estate for hand-soldered prototypes and high-volume reflow. The architecture uses a 16-bit instruction word with an 8-bit data path, an 8x8 hardware multiplier, C compiler friendly memory model, and an enhanced instruction set with single-cycle 8x8 multiply and hardware stack that supports deeply nested calls. The PIC18F variant tolerates industrial 4.2V to 5.5V rails common in 5V automotive subsystems, factory sensor conditioning, and mains-powered white goods, while the internal oscillator eliminates external crystals in cost-sensitive layouts. Typical applications include industrial sensor conditioning, HVAC thermostat control, low-end home appliances, automotive body modules, USB HID peripherals, LED lighting controllers, and battery-powered metering. The XLP sleep currents below 1uA also suit long-life IoT sensor nodes powered by coin cells. When designing with this part, configure CONFIG bits to map the I/O correctly, choose between INTOSC and an external crystal based on USB timing accuracy, and budget Brown-Out Reset and Watchdog Timer for industrial reliability. Place a 100nF decoupling capacitor within 5mm of each VDD pin. This page synthesizes distributor pricing, drop-in alternatives, design notes, and FAQs that go beyond the manufacturer datasheet - giving engineers a single source for footprint, parametric, and sourcing decisions when adopting the PIC18F24K22-E/SO.

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PIC18F24K22-E/SS - 8-bit 48MHz 16KB Flash MCU | Microchip
PIC18F24K22-E/SS

PIC18F24K22-E/SS - 8-bit 48MHz 16KB Flash MCU | Microchip

The Microchip Technology PIC18F24K22-E/SS is an 8-bit PIC18 XLP microcontroller featuring 48 MHz CPU speed, 16 KB (8K x 16) Flash program memory, and a 28-pin SSOP package designed for low-power, high-performance embedded applications. This automotive-grade ("-E" suffix) variant operates across 1.8 V to 5.5 V supply voltage with nanoWatt XLP extreme-low-power technology, making it ideal for battery-powered and energy-harvesting designs where quiescent current matters. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (RAM and EEPROM), and programmable peripherals. PIC18 XLP microcontrollers belong to the 8-bit PIC18 family, which uses an enhanced Harvard RISC architecture with 16-bit instructions, 8-bit data path, and hardware multiplier. The "K22" device class adds higher-frequency operation, larger memory, and the nanoWatt XLP power-management extensions that enable sleep currents below 50 nA. Within the broader taxonomy: PIC18F24K22 -> PIC18 microcontroller -> 8-bit MCU -> microcontroller -> embedded processor -> semiconductor IC. Key features include 16 KB Flash, 768 bytes RAM, 256 bytes EEPROM, 25 I/O pins, two Enhanced USART modules, two MSSP (SPI/I2C) ports, a 10-bit ADC with up to 17 channels, multiple 8-bit and 16-bit timers, and a PWM module with complementary outputs. The device provides 36 instructions, an 8x8 hardware multiplier, and an extended instruction set optimized for C compilers. On-chip debugging is supported via ICSP and ICD. The PIC18F24K22 family uses a 14-bit instruction word with 32-level hardware stack and interrupt-driven design. Internal oscillator blocks are factory-calibrated to ±1% across temperature, allowing designs without external crystals. Hardware peripherals are mapped through PPS (Peripheral Pin Select) for flexible routing, which simplifies PCB layout when migrating between PIC18F2XK22 and PIC18F4XK22 pinout variants. Typical applications include automotive body electronics, industrial sensor nodes, smart meters, home appliances, USB peripherals, LCD/LED display controllers, and battery-powered IoT endpoints. The combination of automotive temperature grade (-40 C to +125 C), low sleep current, and rich analog/digital peripherals makes it especially suitable for sensor hubs, motor control auxiliaries, and remote control transmitters. When designing with this MCU, ensure the ICSPDAT/ICSPCLK pins are accessible for in-circuit programming, and observe the Vcap pin requirement on the regulated core voltage. Brown-out reset should be enabled for automotive and industrial safety-critical applications. Configuration bits must be set before code execution to define oscillator mode and code protection. This page synthesizes distributor pricing, drop-in alternatives within the SSOP-28 footprint, and practical design notes not found in the manufacturer datasheet alone, supporting faster component selection and supply-chain decisions.

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PIC18F24K22-I/ML - 8-Bit 64MHz XLP MCU 16KB Flash QFN-28 | Microchip
PIC18F24K22-I/ML

PIC18F24K22-I/ML - 8-Bit 64MHz XLP MCU 16KB Flash QFN-28 | Microchip

The Microchip PIC18F24K22-I/ML is a high-performance 8-bit PIC18 CMOS flash microcontroller with 16 KB of program memory, 768 bytes of SRAM, and 256 bytes of EEPROM, delivering up to 16 MIPS at 64 MHz in a 28-pin QFN (6x6 mm) package with exposed pad. The part operates from 2.5V to 5.5V and integrates the nanoWatt XLP extreme-low-power technology platform that drives Sleep currents below 100 nA typical, making it a strong fit for battery- and energy-harvesting applications. According to the manufacturer datasheet, the device executes instructions in 200 ns and supports C-compiler-friendly C99 operation through Microchip's MPLAB XC8 toolchain. A microcontroller (MCU) is a single-chip computer containing a CPU core, non-volatile program memory, RAM, peripherals and I/O, designed for embedded control tasks. Within the Microchip portfolio, PIC18 sits between the baseline PIC10/12/16 and the high-performance PIC24/dsPIC33 families - richer peripherals and more memory than PIC16, lower cost and simpler toolchain than dsPIC33, all under one unified MPLAB X IDE. The PIC18FxxK22 family adds the nanoWatt XLP power-management layer, making it the preferred sub-family for low-power designs that still need USB, mTouch capacitive sensing, or 12-bit ADC performance. Key features include a 12-bit ADC with up to 19 channels, two rail-to-rail analog comparators with programmable on-chip voltage reference, mTouch capacitive touch sensing support, two enhanced USART modules, two I2C and two SPI peripherals, two 8-bit timers plus three 16-bit timers, and a Programmable High/Low Voltage Detect (PLVD) module. The 28-QFN package's central exposed pad (EP) ties to ground and provides a low-thermal-resistance path; the package is footprint-compatible with most PIC18F2XK22 28-pin variants, simplifying PCB reuse across the family. Typical applications include low-power IoT sensor nodes, consumer remote controls, home appliances with capacitive touch, battery-powered HVAC sensors, automotive body modules (AEC-Q100 grade 1 variant), and industrial control panels where the 64 MHz core and 16 MIPS headroom outpace PIC16 alternatives without paying the dsPIC33 price. When designing with this part, observe the 2.5-5.5V supply window and use the internal 16 MHz HFINTOSC to reduce external components; for sleep-sensitive designs, prefer the `nanoWatt XLP` deep-sleep modes (Sleep current under 100 nA typical) and enable the RTCC with a 32 kHz crystal for timekeeping.

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PIC18F24K22-I/MV - 16KB Flash 8-bit MCU, 28-Pin UQFN | Microchip
PIC18F24K22-I/MV

PIC18F24K22-I/MV - 16KB Flash 8-bit MCU, 28-Pin UQFN | Microchip

The Microchip Technology PIC18F24K22-I/MV is an 8-bit PIC18 RISC microcontroller with 16KB of Flash program memory, 768 bytes of SRAM, and 256 bytes of EEPROM, housed in a 28-pin UQFN EP (4x4 mm) package with exposed thermal pad. It operates at up to 40 MHz (64 MHz with PLL) from a 2.5V/3.3V/5V supply range and carries AEC-Q100 automotive-grade qualification. According to the Microchip PIC18(L)F2X/4XK22 datasheet, the device integrates nanoWatt XLP technology that drops idle consumption into the low-30 nA region, enabling multi-year battery life on a single cell. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, a RISC or CISC CPU core, on-chip program memory (Flash or ROM), data memory (SRAM), non-volatile EEPROM, and a rich set of peripherals such as ADC, timers, and communication ports. The PIC18 family uses an enhanced Harvard RISC architecture that separates program and data buses, allowing simultaneous fetch and execute to deliver high MIPS-per-mW efficiency. Within the broader taxonomy, PIC18F24K22 belongs to the Microchip 8-bit microcontroller family (PIC10, PIC12, PIC16, PIC18), then to the microcontrollers (MCUs) category, then to integrated circuits, and finally to semiconductors. Key features include 25 digital I/O pins, a 10-bit ADC with up to 17 channels, two Enhanced USART modules, two MSSP (SPI/I2C) ports, three 16-bit timers, four 8-bit timers, an Enhanced Capture/Compare/PWM module, and a Charge Time Measurement Unit (CTMU) for capacitive touch. The device integrates an internal 16 MHz oscillator and supports up to 64 MHz via the on-chip PLL. Self-programming under software control enables in-field firmware updates without an external programmer. The PIC18F24K22-I/MV uses CMOS Flash process technology with nanoWatt XLP idle and sleep modes that drop current to as low as 20 nA in sleep with RTCC and 100 nA with the watchdog timer running. The AEC-Q100 qualification extends this same low-power performance into automotive environments, making the part suitable for body, interior, and chassis electronics that must operate reliably across -40C to +125C. Typical applications include automotive body and interior modules, low-power sensor nodes, portable medical instruments, IoT edge devices, consumer white goods, and battery-backed industrial controllers. The wide 1.8V-5.5V operating range (across the PIC18LF24K22 and PIC18F24K22 family) and abundant analog and digital peripherals let a single MCU handle both sensor acquisition and communication in compact designs. When migrating within the PIC18 (L)F2X/4XK22 family, designers should evaluate the I/O count (25), ADC channel count, and supply range; the 28-pin UQFN EP variant is the most space-constrained, while 40-pin and 44-pin variants add peripherals without changing the CPU architecture. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the bare Microchip datasheet, giving engineers a single-page technical reference for the PIC18F24K22-I/MV.

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PIC18F24K22-I/SP - 8-Bit 64MHz XLP MCU, 16KB Flash | Microchip
PIC18F24K22-I/SP

PIC18F24K22-I/SP - 8-Bit 64MHz XLP MCU, 16KB Flash | Microchip

The Microchip Technology PIC18F24K22-I/SP is an 8-bit PIC microcontroller from the PIC18F K-series family, featuring 16 KB of Flash program memory, 768 bytes of SRAM, and 256 bytes of EEPROM in a 28-pin SPDIP (Skinny Plastic DIP) through-hole package. The device runs up to 64 MHz (16 MIPS with 4-cycle instruction execution) from a 2.3V to 5.5V supply, integrating nanoWatt XLP technology for ultra-low-power operation suitable for battery-powered and energy-harvesting designs. The "-I" suffix indicates the industrial operating temperature range of -40C to +85C. A microcontroller (MCU) is a single-chip computer that combines a CPU core, non-volatile program memory, working RAM, and a rich set of peripheral interfaces. The PIC18 architecture is an 8-bit RISC Harvard-design core from Microchip, well established for deterministic interrupt latency, compact C and assembly code generation, and broad ecosystem support through MPLAB X IDE and the XC8 compiler. PIC MCUs sit in a hierarchy of "8-bit MCU -> microcontroller -> embedded controller -> semiconductor," and the K-series emphasizes low-power operation with advanced peripherals for connected and battery-driven products. Key features of the PIC18F24K22 include 25 digital I/O pins, two Enhanced USART modules supporting LIN and RS-485, two MSSP (SPI/I2C) ports, two CCP and one ECCP capture/compare/PWM modules, a 10-bit ADC with up to 19 channels and 30 ksps conversion rate, two comparators, a 5-bit DAC, and a hardware RTCC with self-tune calibration. The XLP technology delivers typical sleep currents below 50 nA, with multiple power-managed operating modes (RUN, IDLE, SLEEP, and deep-sleep with RTCC retention). On-chip 32 kHz oscillator and INTOSC up to 16 MHz eliminate external crystals in cost-sensitive designs. Typical applications include industrial sensor transmitters, battery-powered IoT nodes, home-automation controllers, HVAC interface panels, and consumer appliances. The wide 2.3V-5.5V supply range simplifies integration with both single-cell Li-ion and 5V regulated rails. The combination of XLP sleep currents, an integrated ADC, and dual serial interfaces lets engineers build compact connected-sensor products without external ADC or RTC chips. When designing with the PIC18F24K22, observe Vdd decoupling guidelines (100 nF + bulk) near each supply pin and reserve dedicated ICSP/ICD pins (PGC/PGD) for in-circuit programming and debugging. This page consolidates distributor pricing, same-package drop-in alternatives, and practical design notes to support faster component selection than browsing the manufacturer datasheet alone.

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PIC18F24K22-I/SS - 8-bit XLP MCU, 16KB Flash, 28-SSOP | Microchip
PIC18F24K22-I/SS

PIC18F24K22-I/SS - 8-bit XLP MCU, 16KB Flash, 28-SSOP | Microchip

The Microchip Technology PIC18F24K22-I/SS is an 8-bit PIC18 enhanced flash microcontroller featuring 16KB (8K x 16) of program memory, 768 bytes of RAM, and a maximum CPU clock speed of 64 MHz, housed in a 28-pin SSOP (Shrink Small Outline Package). The device integrates nanoWatt XLP (eXtreme Low Power) technology and is part of the PIC18F2xK22 family of 28/40/44-pin low-power, high-performance microcontrollers. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (Flash/ROM), data memory (RAM), and peripheral interfaces on a single die. The PIC18 architecture uses an enhanced RISC instruction set with a hardware multiplier and 16-bit wide program memory bus, providing higher code density and throughput than baseline PIC16 parts. 8-bit MCUs remain the dominant choice for cost-sensitive, deterministic, low-power embedded applications such as sensor conditioning, motor control, and human-interface nodes. Key differentiating features include a 10-bit ADC with up to 17 channels, multiple Enhanced USART, MSSP (SPI/I2C) peripherals, two comparators, a 5-bit DAC, four 8-bit timers plus three CCP modules, and an internal 16 MHz oscillator with 31 kHz low-power LFINTOSC. The XLP technology enables typical sleep currents below 100 nA with RTCC and watchdog operation, supporting battery-powered designs that must run for years on a single cell. The PIC18F24K22-I/SS is supplied in an industrial (-I) temperature grade suitable for -40C to +85C operation, with supply voltage rated from 2.3 V to 5.5 V. Engineering samples and debug support are provided through the MPLAB X IDE and PICkit/Snap programmers. Two Enhanced Universal Asynchronous Receiver-Transmitter (EUSART) modules plus MSSP with both I2C and SPI modes give designers flexible wired connectivity for sensor hubs, display drivers, and external EEPROM/FRAM. Typical applications include low-power IoT sensor nodes, USB-to-UART bridging, battery chargers, smart metering, white-goods user interfaces, and motor-control sub-systems where deterministic 8-bit timing, low quiescent current, and easy migration from PIC16F/18F legacy code bases are required. Designers using older PIC18F2xK20 designs can usually drop in the K22 variant for more peripherals, more ADC channels, and the XLP power profile. When designing with this part, pay attention to the MSSP pin remapping, ensure the 28-pin variant matches your PCB footprint, and verify that the internal 16 MHz HFINTOSC is sufficient for timing-critical peripherals before adding an external crystal. The device is well supported by the MPLAB Code Configurator (MCC) for rapid peripheral setup. This page synthesizes distributor pricing from DigiKey and Mouser, drop-in same-package alternatives from the PIC18F2xK22 family, and practical design notes that complement - and are not duplicated in - the manufacturer datasheet.

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PIC18F24K22-I/SSVAO - 16KB Flash 8-bit MCU, SSOP-28 | Microchip
PIC18F24K22-I/SSVAO

PIC18F24K22-I/SSVAO - 16KB Flash 8-bit MCU, SSOP-28 | Microchip

The Microchip Technology PIC18F24K22-I/SSVAO is an 8-bit RISC PIC18 microcontroller with 64 MHz CPU, 16 KB (8K x 16) FLASH program memory, 768 bytes of data RAM, and 256 bytes of data EEPROM, housed in a 28-pin SSOP (VAO automotive-qualified) package. It integrates nanoWatt XLP ultra-low-power technology, nineteen 10-bit ADC channels, two DAC outputs, dual I2C/SPI/USART interfaces, and LIN support. A microcontroller (MCU) is a single integrated circuit that combines a CPU, non-volatile program memory (typically Flash), working RAM, and a configurable set of peripheral blocks (ADC, timers, communication controllers, GPIO). PIC18F-family devices use a 16-bit instruction set with an 8-bit data path (modified Harvard architecture), positioning them between baseline PIC10/12/16 parts and the 16-bit dsPIC/PIC24 families in the Microchip 8-to-32 bit scalability story. They are typically deployed in cost-sensitive embedded designs where deterministic interrupt latency, low sleep current, and small footprint matter more than raw compute throughput. Key features of this part include a 64 MHz maximum clock (16 MIPS instruction throughput), an industrial -40C to +85C temperature range tied to the /I suffix, Brown-Out Reset (BOR), Power-On Reset (POR), dual comparators, nine timers, a Watchdog Timer, and on-chip debug via the MPLAB Snap / ICD interfaces. The XLP nanoWatt technology brings sleep currents below typical MCU class averages, suiting battery-powered designs. The PIC18F24K22 silicon uses a CMOS process with a wide 2.7 V to 5.5 V supply range that allows direct operation from a single Li-ion cell, two AA cells, or a regulated 3.3 V / 5 V rail. The 19-channel 10-bit converter and dual comparators make it suitable for sensor-fusion front ends, while the dual USART, dual SPI, and dual I2C interfaces support multi-bus industrial nodes. Typical applications include automotive body and sensor nodes (VAO suffix designates Automotive grade), industrial control, low-power sensor interfaces, LIN slave nodes, and consumer appliances. The wide operating voltage and XLP modes extend use to metering and portable instrumentation. Designers should budget decoupling capacitance (a 100 nF plus bulk) close to VDD/VSS pins, follow Microchip's SSOP-28 land recommendations, and use the MPLAB X IDE with the XC8 compiler for the lowest-power sleep-mode firmware. This page consolidates pricing, drop-in alternatives, and engineering design notes curated from the Microchip datasheet and authorized distributor pages, complementing the manufacturer documentation with selection-ready guidance.

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PIC18F24K22T-I/ML - 16KB Flash 8-bit MCU QFN-28 | Microchip
PIC18F24K22T-I/ML

PIC18F24K22T-I/ML - 16KB Flash 8-bit MCU QFN-28 | Microchip

The Microchip Technology PIC18F24K22T-I/ML is an 8-bit PIC18 K22 series microcontroller featuring 16KB Flash program memory, 768 bytes RAM, and 256 bytes EEPROM, supplied in a 28-pin QFN (6x6) package with industrial -40C to +85C temperature rating. The part delivers up to 64 MHz operation (16 MIPS instruction throughput) and integrates nanoWatt XLP extreme low-power technology, plus a 10-bit ADC, two analog comparators, and multiple Enhanced USART, SPI, and I2C peripherals. An 8-bit microcontroller is a single-chip computer based on a RISC CPU with 8-bit data width, integrating Flash program memory, SRAM, EEPROM, timers, communication peripherals, and interrupt control on one silicon die. PIC18 microcontrollers sit at the middle of the 8-bit MCU hierarchy (under PIC10/12/16 base, above PIC24), extending the architecture with C-optimized instruction set, hardware multiply, and large peripheral sets. The PIC18 K22 sub-family layers nanoWatt XLP power management on top, targeting battery-powered and energy-harvesting designs. With its 16KB Flash / 768-byte RAM combination, the PIC18F24K22 occupies the low-density end of the family but retains the full peripheral complement of larger siblings. Key features include 25 digital I/O pins, an integrated programmable 32 kHz to 16 MHz internal RC oscillator, two rail-to-rail analog comparators, a 10-bit ADC with up to 19 channels, and four timers including RTCC with calendar mode. The 28-QFN (6x6) package provides compact QFN-family footprint with a thermal pad for heat dissipation. Memory protection is offered via program code protection and a hardware WDT for reliable unattended operation. The architecture is built around a RISC core with 200 ns instruction execution and a 16-level hardware stack, enabling deterministic real-time response. nanoWatt XLP supports deep sleep currents in the nanoamp range, making the device suitable for IEC 60601 battery-backed medical sensors and remote sensor nodes. The integrated charge time measurement unit (CTMU) supports capacitive touch, button, slider, and liquid-level interfaces without external components. Typical applications include industrial IoT sensor nodes, home automation appliances, automotive interior modules, low-power medical devices, USB HID peripherals, and consumer electronics. The wide 1.8 V to 5.5 V operating range (matched to lithium chemistries) and an extended temperature grade further extend the use case envelope. When designing with this device, ensure the QFN thermal pad is soldered to a sufficiently sized copper pour to keep junction temperature within limits and follow Microchip MPLAB X IDE for firmware development. The CTMU peripheral calibration constants are stored in Flash and should be locked to preserve touch-tuning accuracy across production runs. This page synthesizes distributor pricing and stock data, drop-in alternatives drawn from the same QFN-28 PIC18 family, and design guidance not consolidated in the manufacturer datasheet.

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PIC18F24K22T-I/MV - 16KB Flash 8-bit MCU 28-UQFN | Microchip
PIC18F24K22T-I/MV

PIC18F24K22T-I/MV - 16KB Flash 8-bit MCU 28-UQFN | Microchip

The Microchip PIC18F24K22T-I/MV is an 8-bit PIC18 microcontroller from the nanoWatt XLP family, featuring 16KB of Flash program memory (8K x 16), 768 bytes of SRAM, and a 256-byte EEPROM, all integrated in a compact 28-pin UQFN (4x4 mm) package. It operates at up to 64 MHz instruction clock and integrates a 10-bit ADC with up to 17 channels, multiple Enhanced USART, MSSP (SPI/I2C) peripherals, and two comparators for mixed-signal embedded designs. The T-suffix indicates Tape & Reel packaging, the I-suffix denotes the industrial temperature range (-40C to +85C), and the MV package suffix specifies the 28-UQFN 4x4 mm option. A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory, data RAM, and integrated peripherals such as timers, ADC/DAC, communication interfaces, and GPIO. PIC18 MCUs use a modified Harvard RISC architecture that delivers 1 instruction per clock cycle (vs 12 for legacy PIC16), giving higher throughput at lower clock rates. They sit within the broader semiconductor hierarchy: MCU -> embedded processor -> semiconductor device, and are widely used where deterministic real-time control, low power, and small package size are required. Key features of the PIC18F24K22T-I/MV include nanoWatt XLP technology with multiple low-power sleep modes (down to ~20 nA typical), 25 general-purpose I/O pins, an internal 16 MHz oscillator with PLL support, and 2 capture/compare/PWM modules with enhanced resolution. The 256-byte data EEPROM supports 1M erase/write cycles, and the Flash supports 10K erase/write cycles. Programmable BOR, POR, and WDT simplify firmware safety. Technically, the part runs from 2.3V to 5.5V across -40C to +125C (E temperature grade) or -40C to +85C (I grade) and is implemented in CMOS process technology. The 28-UQFN package with 4x4 mm footprint is ideal for space-constrained designs and supports surface-mount reflow soldering with MSL3 moisture sensitivity. Self-programmability under software control supports in-application firmware updates without external programmers. Typical applications include low-power IoT sensor nodes, battery-powered instrumentation, automotive body controllers, consumer appliance control panels, and USB/HID edge nodes when paired with an external transceiver. The wide voltage range and rich peripheral mix make it a strong fit for industrial sensor interfaces and motor-control front ends. When designing with this MCU, plan for ICSP programming on pins RB6/ICSP-CLK and RB7/ICSP-DAT, ensure adequate bulk decoupling (10 uF + 100 nF near VDD), and reserve an unused I/O for MCLR pull-up. The UQFN package requires thermal pad soldering per JEDEC J-STD-020 reflow profiles. This page consolidates distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC18F24K40-E/ML - 64MHz 8-bit MCU 16KB Flash 28-QFN | Microchip
PIC18F24K40-E/ML

PIC18F24K40-E/ML - 64MHz 8-bit MCU 16KB Flash 28-QFN | Microchip

The Microchip Technology PIC18F24K40-E/ML is a 64 MHz 8-bit PIC18 microcontroller with 16 KB Flash, 1 KB SRAM, and 256 B EEPROM in a 28-pin QFN (6x6 mm) package. The -E suffix indicates the extended automotive temperature grade of -40C to +125C. It integrates a 24-channel 10-bit ADC, a 5-bit DAC, comparators, PWM, CCP, CWG, HLT, WWDT, and SCAN/CRC peripherals onto a single Core Independent Peripherals (CIP) platform. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, timers, and I/O peripherals around an 8-bit data path. PIC18F-series MCUs sit in Microchip's mid-range 8-bit lineup (PIC10/12/16/18 family), chosen for low cost, deterministic interrupt latency, and a mature toolchain (MPLAB X, XC8). The PIC18F24K40-E/ML sits in the MCU -> microcontroller -> 8-bit MCU -> PIC18 hierarchy and is widely used as a drop-in upgrade for legacy PIC16/PIC18 designs that need more analog and richer peripherals. Key features include 16 KB self-programmable Flash, 1 KB SRAM, 256 B EEPROM, 64 MHz operation, 24-channel 10-bit ADC, 5-bit DAC, two comparators, 10-bit PWM with CCP, Complementary Waveform Generator (CWG), Hardware Limit Timer (HLT), Windowed Watchdog Timer (WWDT), and CRC/Memory Scan. XLP (eXtreme Low Power) technology delivers <50 nA typical sleep current with RTCC. The 28-QFN package with exposed thermal pad supports 25 I/O pins and provides a low-thermal-resistance path for higher-current GPIO drive. Technical depth: the CIP architecture lets the CWG, ADC, DAC, comparators, and timers operate without CPU intervention, enabling deterministic hardware-driven control loops for motor, power-conversion, and lighting applications. The 64 MHz core delivers 16 MIPS of throughput, while Peripheral Pin Select (PPS) remaps digital functions to any I/O, simplifying PCB layout. The integrated Hardware Limit Timer (HLT) provides fault-rate-limited PWM shutdown for safety-critical applications. Typical applications include automotive body and interior modules, IoT sensor nodes, battery-powered sensor hubs, BLDC and stepper motor control, digital lighting, and home appliances. The extended -40C to +125C temperature range makes the -E/ML variant particularly suitable for underhood automotive and harsh-environment industrial designs. Design consideration: confirm the 28-QFN footprint matches your PCB land pattern and that the exposed thermal pad is soldered to a sufficient copper pour for heat spreading. Programming via ICSP requires dedicated RG0/PGD, RG1/PGC, and MCLR/VPP pins routed for probe access. Plan PPS assignments early because peripheral-to-pin remapping occurs at runtime and can save board space but complicates firmware reuse. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC18F24K40-E/MV - 8-bit XLP MCU 16KB Flash 28-UQFN | Microchip
PIC18F24K40-E/MV

PIC18F24K40-E/MV - 8-bit XLP MCU 16KB Flash 28-UQFN | Microchip

The Microchip Technology PIC18F24K40-E/MV is an 8-bit PIC18 microcontroller built on the XLP (eXtreme Low Power) platform, delivering 64 MHz CPU performance with 16 KB Flash, 1 KB RAM, and 256 B EEPROM in a compact 28-pin UQFN (4x4 mm) package. The 64 MHz internal oscillator enables 16 MIPS throughput, while the 16 KB (8K x 16) Flash program memory supports embedded firmware for general-purpose control tasks. Background knowledge: An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, Flash, EEPROM, and peripheral interfaces on one die. The PIC18 family is Microchip's mid-range 8-bit architecture, enhanced over the PIC16 line with a 16-bit instruction word, hardware multiplier, and linear program memory up to 128 KB. XLP technology is Microchip's branding for ultra-low-power peripherals (deep sleep, nanoWatt), letting these parts run for years on a coin cell. Within Microchip's hierarchy: 8-bit MCU -> PIC18 -> PIC18 K40 sub-family (XLP + Core Independent Peripherals). Key differentiating features include 25-core-independent CIPs such as CWG (Complementary Waveform Generator), WWDT (Windowed Watchdog Timer), CRC/Memory Scan, Hardware CVD (Capacitive Voltage Divider), Zero-Cross Detect, and Peripheral Pin Select (PPS) for flexible signal routing. The device integrates a 10-bit ADC with Computation (ADC2), a 5-bit DAC, two comparators, multiple PWM/CCP channels, and EUSART/I2C/SPI. Operating voltage spans 2.3 V to 5.5 V, suitable for both 3.3 V and 5 V rails. The 'E' suffix denotes the Extended (-40 °C to +125 °C) operating temperature range, while 'MV' is the package designator for the 28-pin UQFN 4x4 mm. The part is well suited for industrial control, IoT edge nodes, and consumer appliances where small footprint and low power are critical. Typical applications include sensor hubs, battery-powered IoT nodes, home appliances, motor control loops, LED lighting controllers, and USB/CAN bridge prototypes. The combination of PPS and CIPs allows peripheral mapping without PCB changes, accelerating time-to-market. When designing with this part, allocate 1 µF + 0.1 µF decoupling near each power pin and follow Microchip AN1078 for low-power sleep currents. Use PPS registers to remap peripheral I/O without external muxes. Ensure unused I/O are configured as outputs low to minimize leakage. This page synthesizes distributor pricing, drop-in alternatives from Microchip's PIC18 family, and practical design notes not found in the manufacturer datasheet. Cross-reference data and same-package alternatives are provided below for engineers evaluating second-source or migration paths.

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