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PIC18F25J11-I/SP - 32KB Flash 8-bit MCU | Microchip | 48MHz
PIC18F25J11-I/SP

PIC18F25J11-I/SP - 32KB Flash 8-bit MCU | Microchip | 48MHz

The Microchip Technology PIC18F25J11-I/SP is a 8-bit PIC18J-series flash microcontroller (MCU) with 32KB program memory and 48 MHz (12 MIPS) performance, housed in a 28-pin SPDIP (SP) package. It is part of the PIC18 J-series low-power, high-performance nanoWatt XLP family and provides 32KB flash, 3.7KB RAM, 256B EEPROM, and 25 I/O pins in the standard 28-pin DIP footprint. What is a PIC18 microcontroller? A PIC18 is an 8-bit RISC microcontroller from Microchip Technology belonging to the PIC (Peripheral Interface Controller) family, executing most instructions in a single clock cycle. It sits within the broader hierarchy: 8-bit microcontroller -> RISC MCU -> embedded controller -> semiconductor IC, and is widely used for cost-sensitive embedded designs that demand low power, flexible peripherals, and easy in-circuit reprogrammability. Key features include 48 MHz operation (12 MIPS throughput), 32KB self-programmable flash program memory, 3.7KB SRAM, 256 bytes of EEPROM, nanoWatt XLP power-saving technology with a deep-sleep mode, and Peripheral Pin Select (PPS) for flexible I/O remapping. Additional peripherals include 2x UART, 2x SPI, 2x I2C, a 10-bit ADC with up to 10 channels, multiple timers, and a 2-channel Capture/Compare/PWM (CCP) module. The 25 digital I/O lines support capacitive touch sensing via the CTMU module. Technically, the PIC18F25J11 uses a 16-bit modified Harvard architecture with an 8-bit data path, allowing C-compiler-efficient operation. Its on-chip 3.3V regulator enables single-supply 2.0V-3.6V operation, while the wide 2.0V-3.6V core voltage (4.2V-5.5V I/O per the datasheet) makes it suitable for both 3.3V and 5V tolerant mixed-signal designs. PPS gives designers the freedom to remap peripheral signals to almost any I/O pin, simplifying PCB routing in space-constrained layouts. Typical applications include low-power sensor nodes, USB HID interfaces, consumer appliance control, industrial sensor conditioning, and battery-powered remote controls. The 28-pin SPDIP package also makes the part ideal for educational and hobbyist prototyping on breadboards and through-hole prototype PCBs. Design considerations: when targeting deep sleep, configure the DS function through the legacy register set rather than newer PPS-based peripherals. Always observe the maximum 48 MHz peripheral clock and derate the I/O pin current to 25 mA per pin / 200 mA per port. This page synthesizes distributor pricing, drop-in pin-compatible alternatives from Microchip's PIC18 J-family, and practical design notes not found in the manufacturer datasheet.

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PIC18F25J11-I/SS - 8-bit 48MHz 32KB Flash MCU 28-SSOP | Microchip
PIC18F25J11-I/SS

PIC18F25J11-I/SS - 8-bit 48MHz 32KB Flash MCU 28-SSOP | Microchip

The Microchip PIC18F25J11-I/SS is an 8-bit PIC18 J-series microcontroller built on a RISC architecture, offering up to 16 MIPS of processing power at 48 MHz internal clock, housed in a 28-pin SSOP package. It integrates 32 KB of Flash program memory (16K x 16), 3.8 KB of RAM, and a 10-bit ADC with up to 10 channels, making it a strong fit for cost-sensitive embedded designs that still require analog and digital peripheral flexibility. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, Flash program memory, and peripherals (ADC, timers, communication ports) into one IC. In the broader taxonomy, the PIC18F25J11 belongs to the hierarchy: microcontroller -> 8-bit MCU -> PIC18 family -> PIC18 J-series -> XLP nanoWatt XLP extreme low power sub-family. The J-series is Microchip's low-power, high-performance branch of the PIC18 line, designed to bring 16 MIPS throughput to portable and battery-driven applications while keeping active current draw in the milliamp range. Key features include Peripheral Pin Select (PPS), which allows remapping of digital peripherals to any I/O pin, dramatically simplifying PCB layout; nanoWatt XLP technology with deep-sleep currents measured in nanoamps; and on-chip 2.5V and 3.3V voltage regulator options that allow single-rail 2.5-3.6V operation or 5V (4.2-5.5V) operation depending on the configuration. The device also integrates multiple communication peripherals (EUSART, SPI, I2C), comparators, PWM modules, and a CTMU for capacitive touch sensing. The 28-SSOP form factor keeps the design surface-mount and compact, suitable for both hand-soldered prototypes and high-volume SMT assembly. Technically, the PIC18F25J11 combines the classic PIC18 instruction set with enhanced peripherals such as the RTCC (Real-Time Clock/Calendar) and extended watchdog timer. The PPS subsystem distinguishes the J-series from earlier PIC18F devices, where peripheral-to-pin mapping was hard-wired. Designers moving from older PIC18F parts gain significant board-routing flexibility, often eliminating the need for trace-layer changes when relocating peripherals. Typical applications include USB Human Interface Devices (HID) such as keyboards and mice, low-power sensor nodes with battery or energy-harvesting supplies, industrial control front-ends, consumer appliances with capacitive touch panels, and portable medical peripherals where nanoWatt XLP deep-sleep currents extend battery life into the year range. The wide operating voltage window (2.0-3.6V F-core / 4.2-5.5V HF-core) lets the same part serve both 3.3V and 5V rails. When designing with this MCU, pay close attention to the configuration bits that select between 2.5V regulator mode (F-core, 2.0-3.6V) and 5V regulator mode (HF-core, 4.2-5.5V). Choosing the wrong mode will prevent the part from running reliably at the intended rail. Also reserve adequate Flash endurance budget; PIC18F25J11 Flash is rated for a minimum of 10,000 erase/write cycles per block.

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PIC18F25J11T-I/ML - 32KB Flash 8-bit MCU 48MHz | Microchip
PIC18F25J11T-I/ML

PIC18F25J11T-I/ML - 32KB Flash 8-bit MCU 48MHz | Microchip

The Microchip Technology PIC18F25J11T-I/ML is an 8-bit PIC18J-series microcontroller featuring 32KB (16K x 16) of Flash program memory, 4KB of RAM, and a 48MHz (12 MIPS) enhanced Harvard architecture CPU core, housed in a 28-pin QFN (6x6 mm) package with an exposed thermal pad. It operates from a 2.0V to 3.6V supply (per Microchip datasheet DS39931B) and integrates 25 I/O pins, two USART, two MSSP (SPI/I2C), one Enhanced USB 2.0 (full-speed), 10-bit ADC, and nanoWatt XLP deep-sleep power management. A PIC18F microcontroller belongs to the 8-bit MCU family from Microchip, which combines a RISC instruction set with a Harvard memory architecture to deliver deterministic, low-power embedded control. The PIC18J sub-family adds Peripheral Pin Select (PPS) for flexible signal routing and Deep Sleep mode with RTCC for sub-uA standby current, making it the bridge between classic PIC16 designs and the higher-tier PIC24/dsPIC controllers. PIC18F MCUs are widely used in cost-sensitive consumer, industrial, and USB-enabled embedded products. Key differentiating features of the PIC18F25J11 include 4.17uV-class noise tolerance on analog rails (via the dedicated analog supply pins), 12 MIPS throughput at 48MHz internal oscillator, two analog comparators with programmable reference, and a Charge Time Measurement Unit (CTMU) for capacitive touch or precise timing. The PPS block remaps digital peripherals to almost any I/O, drastically simplifying PCB routing when a feature is added or removed late in the design cycle. Typical applications for the PIC18F25J11T-I/ML include USB HID/MIDI peripherals, sensor conditioning nodes, low-power remote controls, capacitive-touch user interfaces, and small-form-factor industrial controllers. The exposed-pad QFN-28 package improves thermal dissipation and frees board area compared with the SOIC-28 variant, which is useful when USB or analog subsystems share the same PCB. When designing with this part, use the QFN-28 land geometry exactly per Microchip IPC-7351 land pattern recommendations; the exposed pad MUST be soldered to the ground plane for electrical and thermal performance. MPLAB X IDE with the XC8 compiler and the PICkit 3/4 or Snap debugger are the recommended toolchain for firmware development and in-circuit programming. This page synthesizes distributor pricing (DigiKey, Mouser, LCSC, JLCPCB), drop-in 28-QFN alternatives from the PIC18F family, and practical PCB/toolchain notes that are not consolidated in any single manufacturer document.

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PIC18F25J11T-I/SS - 32KB Flash 8-bit MCU 48MHz | Microchip
PIC18F25J11T-I/SS

PIC18F25J11T-I/SS - 32KB Flash 8-bit MCU 48MHz | Microchip

The Microchip Technology PIC18F25J11T-I/SS is an 8-bit PIC18 RISC microcontroller with 32KB of Flash program memory, 4KB of RAM, and a 48 MHz maximum operating frequency delivering 12 MIPS, housed in a 28-pin SSOP package. It operates from a 2.0V to 3.6V supply and features the nanoWatt XLP (eXtreme Low Power) technology suite, including a Deep Sleep mode that draws nanoamp-level standby current for battery-powered applications. An 8-bit microcontroller (MCU) is a small computer-on-a-chip that integrates a CPU, program memory (Flash), data memory (RAM), and peripherals such as timers, communication interfaces, and analog-to-digital converters on a single silicon die. Within the broader taxonomy, an MCU belongs to microcontrollers -> integrated circuits -> semiconductors. The PIC18 family uses a modified Harvard RISC architecture with a 16-bit instruction word and 8-bit data path, optimized for deterministic real-time control while remaining C-friendly through the MPLAB XC8 toolchain. Key features of the PIC18F25J11 include Peripheral Pin Select (PPS), which allows remapping of digital peripheral I/O to almost any general-purpose I/O pin, providing exceptional PCB layout flexibility. The device integrates a 10-bit ADC with up to 10 channels, multiple Enhanced USART, MSSP (SPI/I2C), two analog comparators, and a charge time measurement unit (CTMU) for capacitive touch sensing. The nanoWatt XLP technology typically achieves less than 20 nA Deep Sleep current and sub-microamp Run/Idle currents, enabling years of operation on a single coin cell. Architecturally, the PIC18F25J11 is built on an enhanced flash cell process and shares its core with the wider PIC18 J-series, supporting on-chip debugging via ICD 3 and the MPLAB X IDE. The 28-pin SSOP (Small Shrink Outline Package, 5.30 mm body width) is a low-profile surface-mount variant suited to compact board layouts where SOIC-28 footprint is too tall. Typical applications include low-power IoT sensor nodes, battery-backed telemetry, USB-to-UART bridges using the on-chip USART, capacitive touch user interfaces (CTMU), portable medical devices, and consumer white goods. The combination of low cost, 12 MIPS throughput, and nanoamp standby makes the part particularly attractive for cost-sensitive edge nodes. When designing with this device, ensure decoupling capacitors of at least 100 nF are placed within 5 mm of each VDD pin, and consider the PPS configuration carefully because misassignment can lock out debug or programming access to the ICSP pins. This page synthesizes distributor pricing, drop-in SSOP alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC18F25J50-I/ML - 48MHz 8-bit MCU, USB 2.0, 32KB Flash | Microchip
PIC18F25J50-I/ML

PIC18F25J50-I/ML - 48MHz 8-bit MCU, USB 2.0, 32KB Flash | Microchip

The Microchip Technology PIC18F25J50-I/ML is a high-performance 8-bit PIC18J-series flash microcontroller with integrated full-speed USB 2.0, 32 KB of program flash, and 28 KB of in-circuit self-programmable memory, housed in a 28-pin QFN (ML) package with exposed thermal pad. Operating at up to 48 MHz from a 2.0–3.6 V supply, it delivers 16 MIPS while consuming nanoWatt-class deep-sleep currents. An 8-bit microcontroller (MCU) is a single-chip computer that combines a CPU, RAM, program memory, and peripherals on one die. The PIC18 family uses Microchip's enhanced Harvard RISC architecture with 16-bit opcodes and 8-bit data, placing this part in the broader taxonomy: 8-bit MCU -> microcontroller -> embedded processor -> integrated circuit. The "J" suffix indicates a 3.3 V-only family with deep-sleep nanoWatt technology, distinguishing it from the 5 V-tolerant F-series. The "F" indicates flash program memory, and "50" marks the 48 MHz USB-equipped variant. Key differentiating features of the PIC18F25J50 include the integrated USB 2.0 full-speed (12 Mbps) peripheral with on-chip transceiver, nanoWatt deep-sleep mode drawing under 100 nA, CTMU for capacitive touch and mTouch sensing, and a 10-bit ADC up to 200 ksps. The device exposes 25 digital I/O lines, supports two USART, two MSSP (SPI/I2C) channels, and four timers. With 32 KB flash and 2 KB of general-purpose SRAM, it targets cost-sensitive USB-enabled embedded designs. From a technical perspective, the part uses a 2-stage instruction pipeline with a hardware multiplier and a 32 kHz secondary oscillator for low-power timer operation. The internal 31 kHz and 8 MHz RC oscillators eliminate external crystals in many applications. The ICSP/In-Circuit Serial Programming interface allows field firmware updates without removing the device from the PCB, while IAP supports bootloader development for USB firmware upgrades. Typical applications include USB HID peripherals such as mice, keyboards and game controllers; USB-to-UART bridges and CDC virtual COM ports; capacitive touch (mTouch) user interfaces; portable medical and instrumentation data loggers; and consumer appliances requiring low standby power with USB connectivity. The wide operating range and small QFN-28 footprint suit space-constrained USB dongles. When designing with this MCU, mind the 2.0–3.6 V supply constraint — USB VBUS cannot be tied directly to VDD without a 3.3 V regulator, since USB supplies 5 V. Place the 0.1 µF decoupling capacitor within 5 mm of VDD, reserve D+/D- traces as a 90-ohm differential pair with no stubs, and ensure the internal regulator decoupling capacitor is sized per the datasheet to prevent USB communication errors. This page synthesizes distributor pricing, drop-in PIC18 family alternatives, and practical USB design notes not consolidated on the Microchip product page.

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PIC18F25J50-I/SO - 8-bit USB MCU 48MHz 32KB Flash 28-SOIC
PIC18F25J50-I/SO

PIC18F25J50-I/SO - 8-bit USB MCU 48MHz 32KB Flash 28-SOIC

The Microchip Technology PIC18F25J50-I/SO is a high-performance 8-bit PIC18 XLP microcontroller with integrated full-speed USB 2.0, 32KB of Flash program memory, 4KB of RAM, and 48 MHz (12 MIPS) CPU performance, housed in a 28-pin SOIC (0.3 inch body) package. The -I suffix denotes the industrial temperature grade of -40C to +85C, and the part operates from a 2.0V to 3.6V core VDD supply with 5.5V-tolerant I/O for direct interfacing to USB bus-powered rails and 5V logic. The device targets cost-sensitive embedded applications that need native USB connectivity without an external transceiver. A microcontroller (MCU) is a single-chip computer containing a CPU core, non-volatile program memory (Flash), working RAM, peripheral interfaces, and I/O pins. The PIC18 family is Microchip's high-performance 8-bit line, sitting above the PIC16 family in complexity and addressing range. The J-series PIC18FX5J50 family adds native full-speed USB 2.0 peripheral support, making it a popular choice for HID, CDC, and low-bandwidth USB device designs. Within Microchip's catalog, PIC18F25J50 belongs to the broader PIC18J subgroup (3.3V VDD core with 5V tolerant I/O), which is positioned between the legacy PIC18F (5V) family and the newer PIC18F K-series and Q-series devices. Key features include 32KB Flash (16K x 16), 4KB RAM, nanoWatt XLP technology for low-power operation, deep sleep mode, two USART modules, two MSSP (SPI/I2C) modules, 10-bit ADC with up to 13 channels, 10-bit PWM, up to 25 I/O pins, an internal 31 kHz to 8 MHz oscillator, and a 4x PLL for the 48 MHz USB clock. The integrated USB 2.0 full-speed transceiver complies with USB 2.0 specification and supports 12 Mbps operation with on-chip pull-up resistors, eliminating external USB components. Architecture-wise, the PIC18F25J50 uses a RISC-style Harvard architecture with 16-bit instructions and 8-bit data path, a hardware multiplier, and a vectored interrupt controller supporting prioritized interrupts. The 12 MIPS CPU performance comes from the 48 MHz clock feeding the instruction pipeline. The Flash is self-programmable under firmware control, enabling bootloader and field-update use cases. Typical applications include USB HID peripherals (keyboards, mice, custom input devices), USB-to-UART bridges, USB CDC virtual COM ports, low-power sensor nodes with USB charging, industrial data loggers with USB export, and consumer electronics requiring USB device connectivity. The XLP technology is particularly valuable in battery-powered USB designs where the MCU must draw minimal current during suspend. When designing with this device, mind the dual-voltage architecture: VDD must be in the 2.0V-3.6V range for the core, while most I/O are 5.5V tolerant. The USB bus-powered configuration uses the internal 3.3V regulator derived from VBUS. Place the decoupling capacitors as close as possible to VDD/AVDD/VCAP pins, and follow Microchip's AN947 "USB CDC Virtual COM Port on PIC18F" reference design for bus-powered layouts. This page synthesizes DigiKey and Mouser distributor pricing, Microchip datasheet specifications, and parametric drop-in alternatives from the same PIC18J family, plus practical design notes that go beyond the datasheet's typical application circuits.

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PIC18F25J50-I/SP - 8-bit 48MHz USB MCU 32KB Flash | Microchip
PIC18F25J50-I/SP

PIC18F25J50-I/SP - 8-bit 48MHz USB MCU 32KB Flash | Microchip

The Microchip Technology PIC18F25J50-I/SP is an 8-bit PIC18 microcontroller with integrated full-speed USB 2.0, 32KB of Flash program memory and 4KB of RAM, packaged in a 28-pin SPDIP (SP) through-hole form factor. It executes instructions at up to 48MHz (12 MIPS) and operates from a 2.0V to 3.6V supply, making it suited for cost-sensitive embedded designs requiring on-board USB connectivity. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), data memory (RAM), and peripherals such as timers, ADCs, communication interfaces, and I/O. Within Microchip's taxonomy, the PIC18F25J50 belongs to the PIC18 J-series, a low-power, high-performance 8-bit family that bridges traditional PIC16 architectures with USB and nanoWatt XLP power-management features. The 8-bit PIC core executes one instruction per cycle (except branches), with the PIC18 instruction set adding a 16-bit instruction word and linear memory addressing for C-compiled firmware. Key features include a 10-bit ADC with up to 13 channels, two USART modules, two SPI/I2C MSSP peripherals, a full-speed USB 2.0 device/host/OTG controller, 25 digital I/O pins, four timers, and the nanoWatt XLP deep-sleep mode drawing currents in the nanoamp range. The internal 31kHz LFINTOSC, RTCC, and multiple clock sources allow firmware to throttle the core clock dynamically, while the on-chip 3.3V regulator simplifies single-supply designs. The integrated USB transceiver eliminates the external 1.5k pull-up and crystal typically required, reducing BOM cost. Typical applications span USB HID peripherals (keyboards, mice, custom input devices), USB-to-UART bridges, low-cost data loggers, sensor front-ends with USB streaming, point-of-sale terminals, and battery-powered instruments exploiting the deep-sleep mode. The 28-pin SPDIP package eases prototyping on through-hole PCBs and breadboards while remaining production-ready for industrial and consumer products. When designing with this MCU, plan the PCB footprint around the 0.1-inch pin pitch of the SPDIP-28 package, leave the VUSB pin bypassed with a 1uF capacitor if used as a USB power source, and configure the config words to enable the internal regulator and correct clock source. Engineers should consult the Microchip datasheet for full DC characteristics, errata, and USB firmware stack recommendations. This page synthesizes distributor pricing, drop-in same-package alternatives from the PIC18 family, and practical design notes not aggregated on the manufacturer product page.

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PIC18F25J50T-I/SS - 8-bit USB MCU 32KB Flash 48MHz SSOP-28 | Microchip
PIC18F25J50T-I/SS

PIC18F25J50T-I/SS - 8-bit USB MCU 32KB Flash 48MHz SSOP-28 | Microchip

The Microchip Technology PIC18F25J50T-I/SS is a low-power, high-performance 8-bit PIC18J-series microcontroller with integrated full-speed USB 2.0, 32 KB of Flash program memory, 4 KB of RAM, and a 48 MHz internal oscillator, housed in a 28-pin SSOP (SS) package. The "T" suffix indicates Tape and Reel packaging, "I" denotes the -40C to +85C industrial temperature range, and it operates from 2.0 V to 3.6 V. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (RAM), and peripherals such as timers, ADC, communication interfaces, and in this case a USB 2.0 Full-Speed transceiver. The PIC18F25J50 belongs to the PIC18 J-series, which is a low-power CMOS Flash MCU family within Microchip's broader 8-bit PIC taxonomy (PIC10/12/16/18). Its NanoWatt XLP technology adds Deep Sleep and other power-saving modes that drop current consumption to the nanoampere range, making it well-suited for USB-powered and battery-backed designs. Key features include 32 KB (16K x 16) self-programmable Flash, 4 KB RAM, a 10-bit ADC with up to 10 channels, 2 analog comparators, 2 UART/SPI/I2C peripherals, 2 CCP/ECCP modules, a 48 MHz internal oscillator, and an integrated full-speed USB 2.0 device/host/OTG transceiver. The Deep Sleep mode lowers quiescent current dramatically for sleep-dominated applications such as USB suspend, while nanoWatt XLP peripherals and the on-chip RTCC keep wake-up time short. The architecture is a RISC Harvard design with a modified 16-bit instruction word and 8-bit data path, supporting single-cycle instructions and hardware multiply, which delivers 16 MIPS peak throughput at 48 MHz. On-chip peripherals are mapped through Microchip's PMD (Peripheral Module Disable) registers, allowing unused blocks to be turned off for additional power savings. The integrated USB transceiver with on-chip pull-up resistors eliminates the external USB transceiver and pull-up that legacy designs required. Typical applications include USB HID peripherals, USB-to-UART bridge dongles, low-power data loggers, sensor hubs with USB connectivity, and consumer-electronics user interfaces. Its USB On-The-Go capability also enables point-to-point device-to-device links without a host PC, useful for field service tools and embedded diagnostics. When designing with this device, ensure the regulated 3.3 V supply falls within the 2.0-3.6 V operating range and place the decoupling capacitor network close to the VDD/VSS pins as recommended in the datasheet. For low-power sleep, verify that all wake sources are correctly configured and that unused I/O pins are set as outputs to minimize leakage. This page synthesizes distributor pricing for the PIC18F25J50T-I/SS, same-family drop-in alternatives in the same 28-SSOP footprint, and practical design notes not found in the manufacturer datasheet, giving engineers a complete sourcing and design reference.

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PIC18F25K20-E/ML - 32KB Flash, 48MHz 8-bit MCU | Microchip
PIC18F25K20-E/ML

PIC18F25K20-E/ML - 32KB Flash, 48MHz 8-bit MCU | Microchip

The Microchip Technology PIC18F25K20-E/ML is an 8-bit PIC18 microcontroller with 32KB Flash, 1536B RAM, 256B EEPROM, and 25 digital I/O pins, packaged in a 28-pin QFN (6x6 mm) with exposed pad. It runs up to 48MHz (12 MIPS) from a 1.8V to 3.6V supply and integrates a 10-bit ADC, multiple timers, and nanoWatt XLP extreme-low-power technology for battery-driven designs. The '/E' suffix denotes the extended -40C to +125C operating temperature range, and '/ML' is the QFN-28 package code. A PIC18 microcontroller is a Harvard-architecture 8-bit RISC MCU from Microchip's PIC18 family, positioned above PIC10/12/16 in flash and peripheral count while below PIC24/dsPIC in core width. PIC18 devices combine a 16-bit instruction word (improved code density over PIC16) with a rich peripheral set - ADC, PWM, comparators, EUSART, SPI, I2C, USB (in some variants) - and inherit MPLAB X IDE and XC8 compiler support, making them a workhorse for industrial control, sensor hubs, and consumer appliances. Key features of the PIC18F25K20 include 32KB self-programmable Flash, 1536B SRAM, 256B EEPROM, 10-bit ADC with up to 11 channels, two CCP/ECCP modules for PWM, an EUSART, MSSP for SPI/I2C, a 64MHz internal oscillator, nanoWatt XLP modes (sleep current ~100 nA typical), and an ICD-friendly ICSP interface. The QFN-28 (6x6) package exposes an EP pad that must be soldered to the PCB ground pour for thermal dissipation and electrical reference. Internally the PIC18F25K20 uses Microchip's enhanced PIC18 core with an 8-bit ALU, 31-level hardware stack, and a 16-bit wide program memory bus. The 10-bit ADC is successive-approximation with acquisition time programmable up to several microseconds, suitable for sensor front-ends up to ~100 kS/s aggregate. The nanoWat XLP technology supports RTCC, deep sleep, and ultra-low-power wake-on-change for coin-cell applications. Typical applications include battery-powered sensor nodes, HVAC controllers, white-goods user interfaces, low-cost USB-to-UART bridges (companion of the PIC18F25K20 USB variant family), and industrial metering. The wide 1.8-3.6V supply range and low sleep current make it well suited to 2xAA/coin-cell designs. When designing with the PIC18F25K20-E/ML, ensure the exposed pad (EP) is soldered to a continuous ground plane for thermal performance. Decouple VDD with a 100nF ceramic plus 1-10uF bulk capacitor within 3mm of the pins, and keep analog and digital grounds connected only at the EP to avoid ground-loop noise coupling into the ADC. This page consolidates distributor pricing, parametric alternatives, and practical design notes not found in the manufacturer datasheet, helping engineers evaluate the PIC18F25K20-E/ML for both new designs and legacy PIC18 drop-in migrations.

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PIC18F25K20-E/SO - 8-Bit 48MHz 32KB Flash MCU | Microchip
PIC18F25K20-E/SO

PIC18F25K20-E/SO - 8-Bit 48MHz 32KB Flash MCU | Microchip

The Microchip Technology PIC18F25K20-E/SO is an 8-bit PIC18 XLP nanoWatt flash microcontroller running at 48 MHz with 32 KB of program memory, 1536 B of RAM, and 256 B of EEPROM in a 28-pin SOIC package. It delivers up to 16 MIPS throughput using the enhanced PIC18 RISC architecture with 200 ns instruction execution, and operates from 1.8 V to 5.5 V with nanoWatt XLP extreme-low-power technology for battery-friendly designs. The device integrates a 10-bit ADC, multiple timers, EUSART, MSSP (SPI/I2C), and 25 digital I/O pins. A PIC18 XLP (eXtreme Low Power) microcontroller is an 8-bit CMOS flash MCU from Microchip's PIC18 family, which sits within the broader category of microcontrollers, then ICs, then semiconductors. XLP technology adds deep-sleep and sleep current modes in the nanoampere range, allowing battery-powered products to extend operating life by orders of magnitude over conventional 8-bit MCUs. The PIC18F25K20-E/SO sits in the high-performance branch of this family, with 32 KB of self-programmable flash, ample RAM for protocol stacks, and rich analog/peripheral integration. Key features include 32 KB flash, 1536 B RAM, 256 B EEPROM, a 10-bit A/D converter with up to 14 channels, two analog comparators, four timers (Timer0/Timer1/Timer2/Timer3), enhanced CCP, EUSART with auto-baud, MSSP for SPI/I2C master-slave operation, and 25 I/O capable of sourcing/sinking 25 mA per pin. The 'E' suffix indicates the extended (-40C to +125C) operating temperature grade required for industrial and automotive-grade end equipment. Typical applications include industrial sensor interfaces, USB/serial bridging nodes (with external transceiver), home-automation controllers, low-power wireless sensor endpoints, white-goods and HVAC control panels, and consumer appliance user interfaces. The 25 I/O and 10-bit ADC suit systems that read multiple analog sensors while driving relays, keypads, or LED matrices. When designing with this part, place a 0.1 uF decoupling capacitor close to VDD/VSS and consider the in-circuit serial programming (ICSP) header layout for production programming. For very low-power designs, use the nanoWatt XLP sleep modes and gate unused peripherals before entering deep sleep. This page synthesizes distributor pricing, pin-compatible PIC18F family alternatives, and practical design notes not found in the standalone manufacturer datasheet.

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PIC18F25K20-E/SP - 8-bit 48MHz 32KB Flash MCU | Microchip
PIC18F25K20-E/SP

PIC18F25K20-E/SP - 8-bit 48MHz 32KB Flash MCU | Microchip

The Microchip Technology PIC18F25K20-E/SP is an 8-bit PIC18 microcontroller running at up to 48 MHz delivering 16 MIPS, integrating 32 KB of Flash program memory, 1536 bytes of RAM and 256 bytes of EEPROM, and packaged in a 28-pin SPDIP (0.300", 7.62 mm body). The "E" temperature suffix extends the operating range from -40°C to +125°C, making this part suitable for industrial and harsh-environment designs while the /SP package code identifies the 28-pin Skinny Plastic DIP tube format. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, RAM, EEPROM, peripherals and I/O into one package. The PIC18F25K20 belongs to the 8-bit RISC PIC18 family within Microchip's nanoWatt XLP extreme-low-power portfolio, sitting in the broader hierarchy: PIC microcontroller -> Microchip 8-bit MCU -> Microcontroller -> Embedded Processor IC -> Semiconductor. The XLP designation indicates sub-µA sleep currents and multiple power-managed modes, enabling battery-powered designs that survive years on a single cell. Key features include a 10-bit ADC with up to 14 input channels, two 8-bit timers plus three 16-bit timers, two capture/compare/PWM modules, an enhanced CCP, an 8-bit parallel master port, an MSSP module supporting SPI and I²C (including master I²C), an enhanced USART with auto-baud detect, two analog comparators, an internal 16 MHz oscillator with PLL, and 25 digital I/O pins. nanoWatt XLP technology keeps typical sleep current below 100 nA with retention and below 100 nA in real-time-clock mode from a 3V supply. Architecturally, the PIC18F25K20 uses a 16-bit instruction word, eight-level hardware stack and 32 interrupt sources. The CPU is built on an enhanced Harvard architecture with separate program and data buses, providing deterministic interrupt latency. The 10-bit ADC delivers up to 30 ksps and can reference VDD or an external pin, and the internal 16 MHz oscillator with 4x PLL generates the 64 MHz system clock while remaining tolerant of ±2% accuracy across temperature. Typical applications include industrial sensor nodes, low-power remote controls, battery-powered instrumentation, smart metering, HVAC controls, automotive body modules (non-safety) and white-goods user interfaces. The wide operating voltage of 1.8V to 5.5V and extended temperature range make it a flexible drop-in choice for cost-sensitive embedded products. When designing with the PIC18F25K20-E/SP, place a 100 nF decoupling capacitor adjacent to every VDD/AVDD pin, keep analog and digital ground returns separated, and follow Microchip's AN585 and TB077 guidelines for in-circuit serial programming and ICSP layout. Use MPLAB X IDE with the XC8 compiler for code development. This page synthesizes distributor stock, pricing tier, 5-8 drop-in SPDIP alternatives, and application guidance not found in any single manufacturer document, giving procurement and firmware engineers a single decision-ready reference.

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PIC18F25K20-E/SS - 8-bit 48MHz 32KB Flash MCU | Microchip
PIC18F25K20-E/SS

PIC18F25K20-E/SS - 8-bit 48MHz 32KB Flash MCU | Microchip

The Microchip Technology PIC18F25K20-E/SS is an 8-bit PIC microcontroller with 48MHz CPU speed, 32KB (16K x 16) Flash program memory and 1.5KB SRAM, packaged in a 28-pin SSOP (5.30mm body width). It belongs to the PIC18F2XK20/4XK20 family and features nanoWatt XLP extreme-low-power technology for battery-friendly designs. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), data memory (RAM), and programmable peripherals on one die. Within the broader semiconductor taxonomy, microcontrollers sit under microcontrollers -> embedded processors -> logic ICs -> integrated circuits. The PIC18 family uses a RISC-based 8-bit core optimized for deterministic execution, low power, and easy C/assembly development with Microchip's MPLAB X IDE and XC8 compiler. Key features of the PIC18F25K20 include 25 I/O pins, a 10-bit ADC, on-chip EEPROM (256 bytes), PWM modules, multiple communication peripherals (UART, SPI, I2C), and four timer modules. The XLP nanoWatt technology typically delivers sub-uA sleep currents, enabling coin-cell battery lifetimes measured in years. The 48MHz internal oscillator and 64MHz performance (when using PLL) deliver up to 16 MIPS throughput, sufficient for sensor fusion, simple motor control, and human-interface applications. Technically, the PIC18F25K20-E/SS operates from 1.8V to 3.6V (extended temp variant 'E'), includes 256 bytes of data EEPROM for non-volatile parameter storage, and uses Microchip's ICD/ICSP debug interface. The 28-SSOP package supports hand-soldering and standard 0.65mm-pitch PCB layouts. Hardware multipliers, nested interrupts, and 31-level stack are standard PIC18 features used here. Typical applications include battery-powered sensor nodes, low-energy IoT edge devices, consumer remote controls, HVAC sensor interfaces, educational development kits, and industrial telemetry modules. The combination of XLP low-power modes, 10-bit ADC, and ample Flash makes it a strong fit for energy-harvesting applications where every microamp counts. Designers should plan around the 28-SSOP footprint, decoupling strategy (100nF close to VDD + bulk), and use MPLAB X with XC8 for firmware. The ICSP pins (PGD/PGC) must remain accessible for in-circuit programming and debug; tying them to PORTB pins requires care so that pull-ups do not interfere with programming. This page synthesizes distributor pricing, drop-in alternatives within the PIC18F2XK20 family and across brands, and practical design notes not found in the manufacturer datasheet alone.

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PIC18F25K20-I/SO - 8-bit 64MHz 32KB Flash MCU 28-SOIC | Microchip
PIC18F25K20-I/SO

PIC18F25K20-I/SO - 8-bit 64MHz 32KB Flash MCU 28-SOIC | Microchip

The Microchip Technology PIC18F25K20-I/SO is an 8-bit PIC® microcontroller from the PIC18 XLP family, delivering 64 MHz (16 MIPS) performance from 32 KB of on-chip Flash program memory and 1536 bytes of SRAM. The /SO suffix denotes a 28-pin SOIC (300 mil) industrial-temperature package (-40°C to +85°C). It features 25 digital I/O pins, a 10-bit ADC with up to 11 input channels, enhanced PWM, CCP and ECCP modules, two comparators, MSSP (SPI/I2C) and EUSART peripherals, plus nanoWatt XLP extreme-low-power technology for battery-friendly designs. What is an 8-bit microcontroller? An 8-bit microcontroller (MCU) is a small computer on a single integrated circuit that processes data in 8-bit chunks, integrating a CPU, RAM, non-volatile program memory (Flash), and peripherals such as ADC, timers, and communication interfaces. Within the broader semiconductor taxonomy, 8-bit MCUs sit beneath microcontrollers and digital ICs, and remain the lowest-cost choice for deterministic, low-power embedded control. The PIC18F25K20 belongs to Microchip's PIC18 XLP family, a family that pairs a RISC core with nanoWatt XLP power management to deliver long battery life in always-on applications. Key features include 64 MHz operation yielding 16 MIPS throughput, 32 KB self-programmable Flash, 1536 bytes SRAM, 256 bytes EEPROM, 25 digital I/O, a 10-bit ADC with up to 11 channels, two analog comparators, two 8-bit timers and three 16-bit timers, MSSP (SPI/I2C), enhanced USART, two capture/compare/PWM modules plus one enhanced CCP, and nanoWatt XLP technology offering sub-µA sleep currents. The wide 1.8 V to 3.6 V core voltage range (verified by the 4.2 V to 5.5 V datasheet VDD range for this variant) plus nanoWatt modes enables coin-cell and energy-harvesting designs. The architecture uses an enhanced PIC18 Harvard RISC core with a hardware multiplier, 31-level stack, and C-friendly instruction set, allowing developers to program in C18/XC8 with predictable interrupt response. On-chip debug via ICSP and ICD support simplifies in-circuit emulation for prototype development. Typical applications include industrial sensor nodes, low-power remote controls, battery-powered instrumentation, HVAC controllers, automotive body modules, and consumer appliances. The SOIC-28 footprint gives generous PCB escape room compared with QFN alternatives, simplifying hand-soldering and rework in low-volume builds. A primary design consideration is that the PIC18F25K20 operates from 1.8 V to 3.6 V core logic and the -I version supports the industrial -40°C to +85°C range; if your rail is 5 V you need a different PIC18 K-series variant. Use an external supervisor/reset IC for noisy industrial environments, and add 100 nF + 10 µF decoupling close to VDD/AVDD/VSS/AVSS pairs. This page consolidates distributor pricing, parametric cross-references, drop-in alternatives, and practical PCB design notes that go beyond the manufacturer datasheet, helping engineers select, source, and lay out the PIC18F25K20-I/SO with confidence.

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PIC18F25K20-I/SP - 8-bit 64MHz 32KB Flash MCU | Microchip
PIC18F25K20-I/SP

PIC18F25K20-I/SP - 8-bit 64MHz 32KB Flash MCU | Microchip

The Microchip Technology PIC18F25K20-I/SP is an 8-bit PIC microcontroller from the PIC18F "K" series with nanoWatt XLP extreme-low-power technology, delivering up to 64 MHz (16 MIPS) CPU performance with 32 KB of Flash program memory and 1.5 KB of RAM. The "-I/SP" suffix indicates the industrial temperature grade (-40C to +85C) and a 28-pin SPDIP through-hole package, which remains popular for hobbyist, educational, and legacy industrial designs. An 8-bit PIC microcontroller (MCU) is a single-chip computer built on Microchip's enhanced PIC18 RISC architecture, integrating a CPU, Flash program memory, SRAM, EEPROM, and a rich set of peripherals (ADC, comparators, PWM, timers, UART, SPI, I2C) on one piece of silicon. PIC18F MCUs sit between the smaller PIC16F family and the 16-bit dsPIC/PIC24 families in Microchip's portfolio, targeting general-purpose embedded control in industrial, automotive aftermarket, appliance, and consumer products. Within the PIC18F "K" sub-family, the "K" suffix denotes the nanoWatt XLP generation, which uses Dynamic Power Switching, ultra-low-power Sleep, and oscillator management to reach sub-uA standby currents for battery-powered applications. Key features include 25 I/O pins (three 8-bit I/O ports with individual weak pull-ups), an internal 16 MHz/64 MHz HFINTOSC selectable via software, an internal 31 kHz LF oscillator for low-power Sleep, two 8-bit timers plus three 16-bit timers, two analog comparators, an Enhanced Capture/Compare/PWM (ECCP) module, a 10-bit ADC with up to 11 input channels, four hardware USART/AEC modules (LIN-capable), and Master I2C/SPI. Optional features available on related parts include mTouch capacitive touch, a 4x PLL, and an RTCC with calendar/alarm - engineering manuals should be cross-checked against the device's silicon revision. Architecturally, the PIC18F25K20 employs an 8-bit Harvard bus, 16-bit-wide instructions, and an 8-level hardware stack. Code is executed from Flash through a 31-level deep instruction queue, and self-programmability is supported via ICSP. The Enhanced Universal Synchronous/Asynchronous Receiver/Transmitter (EUSART) supports RS-232, RS-485, and LIN master/slave modes; the MSSP peripheral supports both SPI and I2C (master/slave with 7-bit/10-bit addressing). Cycle-accurate instruction execution makes deterministic interrupt and timing behavior predictable for control loops. Typical applications include industrial sensor conditioning and serial-sensor hubs, low-power remote controls (where XLP sleep current of ~100 nA matters), automotive aftermarket accessories running from 12 V (subject to input-voltage design), small appliances, educational boards (Arduino-style replacements), RS-485 / LIN slave nodes, and battery-powered instruments where quiescent current dominates. The 28-pin SPDIP form factor is especially convenient for through-hole prototyping and for field-replaceable modules. When designing with this MCU, ensure the oscillator configuration bits are chosen to match the system clock (HFINTOSC for low-power, external crystal for clock-accurate serial work). Decoupling must include a 100 nF low-ESL cap on each VDD/AVDD pin pair, separated from a single bulk 10 uF. Programming is supported by MPLAB X IDE + PICkit 5 / MPLAB Snap / ICD 4 over ICSP. Compared with PIC18F25K22 silicon, the K20 lacks the RTCC and richer touch peripherals - pick K22 if RTC/touch is required, otherwise the K20's SPDIP-28 footprint and identical memory map keep drop-in compatibility straightforward. This page synthesizes distributor pricing snapshots, drop-in same-package alternatives, and practical layout notes not found in the manufacturer datasheet alone - useful as a quick reference during sourcing and BOM review.

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PIC18F25K20-I/SS - 32KB Flash 8-bit MCU, 64MHz XLP | Microchip
PIC18F25K20-I/SS

PIC18F25K20-I/SS - 32KB Flash 8-bit MCU, 64MHz XLP | Microchip

The Microchip Technology PIC18F25K20-I/SS is a high-performance 8-bit PIC18 microcontroller delivering up to 16 MIPS at 64 MHz, with 32 KB of Flash program memory, 1536 bytes of SRAM, and 256 bytes of EEPROM, housed in a 28-pin SSOP package. The device integrates nanoWatt XLP extreme-low-power technology, an enhanced 16-bit instruction set, and a 10-bit ADC with up to 14 channels, providing a flexible platform for general-purpose embedded designs. A microcontroller (MCU) is a single-chip computer containing a CPU, non-volatile program memory, working RAM, and a rich set of on-chip peripherals such as timers, ADC/DAC, communication interfaces (UART, SPI, I2C), and general-purpose I/O. PIC microcontrollers use a RISC-based Harvard architecture with separate program and data buses, allowing simultaneous instruction fetch and operand access, and the 8-bit PIC18 family extends the classic PIC core with 16-bit instructions, linear memory addressing, and a C-optimized instruction set that simplifies firmware portability. Key features of the PIC18F25K20 include 25 general-purpose I/O pins, one 8-bit and three 16-bit timers, two comparators, a Capture/Compare/PWM (ECCP) module, an enhanced USART, MSSP (SPI/I2C), 10-bit ADC with 14 channels, and on-chip nonvolatile data EEPROM. The wide 1.8 V to 3.6 V supply range, four oscillator modes (including a 64 MHz internal PLL block), and nanoWatt XLP sleep currents below 100 nA make it ideal for both line-powered and battery-operated designs. The architecture couples a deterministic 200 ns instruction cycle with hardware multiplier support, enabling real-time control loops in motor, sensor, and lighting applications. Compared with ATmega-class devices, the PIC18F25K20 offers a smaller footprint, deeper sleep modes, and direct EEPROM write support that simplifies parameter storage in field-deployed nodes. Typical applications include consumer appliances, low-power remote sensors, IoT edge nodes, USB HID/CDC peripherals, motor-control subsystems, and industrial metering. Its combination of EEPROM, 10-bit ADC, and CCP/PWM also suits HVAC thermostats, LED drivers, and small appliance controllers where a single-chip solution replaces multiple analog components. When designing with the PIC18F25K20, place a 100 nF decoupling capacitor within 3 mm of each VDD/VSS pair and add a 10 µF bulk capacitor at the regulator output. Program the CONFIG register correctly (oscillator, watchdog, brown-out and low-voltage-programming bits) before locking the code-protect fuses, because an unintended PLL setting can push the core above 64 MHz and brick the device. This page consolidates distributor pricing, drop-in alternatives, comparison parameters, and practical design guidance not found in the standalone manufacturer datasheet, helping engineers shorten selection and qualification cycles.

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PIC18F25K20T-I/ML - 8-bit MCU, 32KB Flash, 64MHz, QFN-28
PIC18F25K20T-I/ML

PIC18F25K20T-I/ML - 8-bit MCU, 32KB Flash, 64MHz, QFN-28

The Microchip Technology PIC18F25K20T-I/ML is an 8-bit PIC18 enhanced Flash microcontroller delivering 64 MHz (16 MIPS) performance from a 32 KB (16K x 16) program memory, packed in a 28-pin QFN (6x6 mm) package. Operating from 1.8 V to 5.5 V with nanoWatt XLP extreme low-power technology, it includes 1536 bytes of SRAM, 256 bytes of EEPROM, and 25 digital I/O pins. The integrated 10-bit ADC, multiple timers, and enhanced CCP modules make it suitable for mixed-signal embedded control. A microcontroller (MCU) is a single-chip computer containing a processor core, program memory (Flash/ROM), data memory (RAM), and peripherals such as ADC, timers, and communication interfaces. The PIC18F25K20 belongs to the 8-bit PIC18 family, which sits within Microchip's PIC microcontroller hierarchy (8-bit PIC -> microcontroller -> embedded processor -> semiconductor). It executes instructions in a Harvard architecture with separate program and data buses, achieving 200 ns instruction cycles at 64 MHz. This places the PIC18F family above the older PIC16 family but below the 16-bit dsPIC and 32-bit PIC32 families in computational capability. Key features include nanoWatt XLP power management with sub-uA sleep currents, an internal 16 MHz oscillator (calibrated to +/- 1%), a 10-bit ADC with up to 14 channels, two analog comparators, two capture/compare/PWM modules, and four timer modules. The device also supports MSSP (SPI/I2C), enhanced USART, and a 14-channel hardware mTouch capacitive sensing module. The PIC18F25K20 uses an enhanced RISC architecture with 75 instructions and 8x8 hardware multiply, enabling efficient C code generation. Peripheral pin select is not available on this part (fixed pin assignments), but software flexible peripherals such as PPS alternatives exist in newer PIC18F devices. Self-programmability supports in-application firmware updates. Typical applications include industrial sensor interfaces, home appliance control, automotive body modules, low-power remote sensors, and consumer electronics. Designers select this part when they need eXtreme Low Power (XLP) consumption, robust peripherals, and Microchip's mature toolchain (MPLAB X, XC8 compiler, PICkit debugger). When designing, ensure the supply decoupling is robust: place 100 nF ceramic capacitors close to VDD/AVDD and VSS/AVSS pins, and consider a 10 uF bulk capacitor at the regulator output. For battery-powered designs, leverage nanoWatt XLP sleep modes with peripheral disable to achieve sub-1 uA quiescent current. This page synthesizes distributor pricing, drop-in package-compatible alternatives, and practical design notes not found in the standalone datasheet.

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PIC18F25K20T-I/SO - 8-bit 64MHz 32KB Flash MCU | Microchip
PIC18F25K20T-I/SO

PIC18F25K20T-I/SO - 8-bit 64MHz 32KB Flash MCU | Microchip

The Microchip Technology PIC18F25K20T-I/SO is an 8-bit PIC18 microcontroller from the nanoWatt XLP eXtreme Low Power family, delivering 64 MHz (16 MIPS) CPU performance with 32 KB of Flash program memory, 1536 bytes of SRAM and 256 bytes of EEPROM in a 28-pin SOIC wide-body package on Tape & Reel. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory (Flash), working RAM, peripherals and I/O into one IC, enabling standalone embedded control. The PIC18F25K20 specifically belongs to the PIC18 advanced 8-bit family with enhanced instruction set, hardware multiplier and nanoWatt XLP technology that drops standby current below 100 nA in sleep mode, fitting the hierarchy MCU -> 8-bit MCU -> PIC18 -> nanoWatt XLP family -> power-sensitive embedded controller. Key features include 25 general-purpose I/O pins, a 10-bit ADC with up to 14 channels, multiple serial interfaces (EUSART, MSSP for SPI/I2C), Capture/Compare/PWM modules, and a wide operating voltage range of 1.8 V to 3.6 V. The device supports industrial -40 C to +85 C operation with self-programming Flash and an on-chip ICD debugger interface for in-circuit development. The PIC18F25K20 uses a Harvard architecture with a 16-bit instruction word and an 8-bit data path, allowing single-cycle 200 ns execution. Its nanoWatt XLP modes (Run, Idle, Sleep and deep Sleep with RTCC) target battery-powered designs where quiescent draw dominates lifetime. Typical applications include battery-powered sensor nodes, USB HID peripherals, white-goods and HVAC control, industrial automation nodes, and low-power IoT edge devices. Engineers select it when code density, deterministic timing and ultra-low sleep current matter more than raw CPU throughput. Design trade-off: the PIC18F25K20 has no integrated USB transceiver, so USB designs need an external PHY or use the PIC18F25K22 variant. Always derate clock frequency at 3.0 V VDD; below 2.5 V the maximum FOSC drops to about 40 MHz. This page synthesizes distributor pricing, XLP drop-in alternatives in the same SOIC-28 footprint, and practical design notes not collected in a single place in the manufacturer datasheet.

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PIC18F25K20T-I/SS - 32KB Flash 8-bit MCU 64MHz SSOP-28 | Microchip
PIC18F25K20T-I/SS

PIC18F25K20T-I/SS - 32KB Flash 8-bit MCU 64MHz SSOP-28 | Microchip

The Microchip Technology PIC18F25K20T-I/SS is an 8-bit PIC18 RISC microcontroller featuring 32KB of Flash program memory, 1536 bytes of SRAM, and 256 bytes of EEPROM, housed in a 28-pin SSOP (5.30 mm) package. It operates at up to 64 MHz internal clock (16 MIPS instruction throughput), supports 1.8V to 5.5V wide-voltage operation, and exposes 25 general-purpose I/O pins across multiple ports for peripheral expansion. The device integrates a 10-bit ADC with up to 14 channels, a comparator module, PWM, timers, EUSART, MSSP (SPI/I2C), and the nanoWatt XLP extreme-low-power sleep mode for battery-driven designs. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and programmable I/O peripherals onto one die. The PIC18 family uses a RISC (Reduced Instruction Set Computer) Harvard architecture with separate program and data buses, optimized for deterministic real-time control in embedded applications. Low-power variants such as the PIC18F25K20 series pair small-footprint RISC cores with rich analog peripherals, targeting consumer, industrial and battery-backed applications where low standby current matters as much as MIPS performance. Key features of the PIC18F25K20T-I/SS include nanoWatt XLP technology with typical sleep currents under 100 nA, an integrated 16 MHz internal oscillator selectable to 64 MHz via 4x PLL, and a robust peripheral set covering EUSART, MSSP (SPI/I2C), 10-bit ADC, ECCP and PWM modules, and the standard PIC18 interrupt controller. The wide 1.8-5.5V operating range allows direct Li-ion or 3.3V/5V system deployment. The 28-pin SSOP footprint exposes 25 I/Os through PORTA-PORTC, supporting in-circuit debugging via ICSP and program memory retention down to 1.8V. The architecture targets deterministic control loops in hobbyist, consumer, and industrial nodes; code written for PIC18F25K20 is portable across the entire K20 family via the standard PIC18 instruction set and SFR layout published by Microchip. Typical applications include consumer appliances and home automation nodes, low-power sensor nodes, industrial control and HMI front ends, and USB-/serial-bridge peripherals. Use cases benefit from the eXtreme Low Power (XLP) sleep modes which extend battery life in always-on nodes. NanoWatt XLP technology also enables wake-on-interrupt scenarios where cycle life of a coin-cell supply matters. When designing with this part, note the T-suffix indicates tape-and-reel packaging and the I-suffix denotes the industrial -40C to +85C temperature range. The /SS suffix denotes the SSOP-28 package. Ensure MPLAB X IDE is selected with the XC8 compiler for code development. Existing PIC18F25K20 firmware is source-compatible with PIC18F45K20 / PIC18F65K20 and other 25/45/65-K20 variants in the same family.

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PIC18F25K22-E/ML - 32KB Flash 8-Bit MCU, 28-QFN | Microchip
PIC18F25K22-E/ML

PIC18F25K22-E/ML - 32KB Flash 8-Bit MCU, 28-QFN | Microchip

The Microchip Technology PIC18F25K22-E/ML is a 28-pin, 8-bit PIC microcontroller in a 6x6 mm QFN package with exposed thermal pad, featuring 32 KB of Flash program memory, 1.5 KB of data EEPROM, and 1.5 KB of SRAM. It runs up to 20 MHz at 5 V (64 MHz internal oscillator) with nanoWatt XLP extreme-low-power technology, supports an operating voltage range of 1.8 V to 5.5 V, and provides 25 general-purpose I/O pins. The 'E' suffix indicates the extended industrial temperature grade of -40 °C to +125 °C. A PIC18 microcontroller is a member of Microchip's 8-bit PIC (Peripheral Interface Controller) family, which uses a modified Harvard RISC architecture. Within the broader taxonomy, it sits under: microcontroller -> MCU -> embedded controller -> semiconductor. The PIC18F2X/4XK22 sub-family introduced nanoWatt XLP technology, peripheral enhancements, and design improvements that make these devices logical choices for many high-performance and power-sensitive applications where extended battery life and rich peripheral integration matter. Key features include 12-bit ADC with up to 17 channels, multiple communication interfaces (two MSSP for I2C/SPI, two enhanced USART with LIN support), up to four 16-bit timers, two comparators, and a charge time measurement unit (CTMU) for capacitive touch sensing. The CTMU enables cost-effective mTouch capacitive touch interfaces without external analog components, and the PMP (Parallel Master Port) supports direct connection to graphical LCDs or external memory. The PIC18F25K22 uses a 16-bit instruction word with a 8-bit data path, delivering C-compiler-friendly code density and deterministic interrupt latency. Internal oscillator calibration and fail-safe clock monitor improve robustness in electrically noisy environments, while wide operating voltage and rich peripheral set reduce BOM cost. Typical applications include low-power IoT edge nodes, industrial sensor interfaces, automotive body and HVAC modules (AEC-Q100 grade 1), capacitive touch user interfaces, portable medical and consumer devices, and USB-less embedded control requiring long battery life. The wide voltage range and flexible peripherals also suit battery chargers, smart meters, and home appliances. When designing with this device, place the decoupling capacitor as close to VDD as possible, leave the exposed pad (EP) soldered to a continuous ground plane for thermal dissipation, and configure unused I/O as outputs to minimize current draw. For low-power designs, leverage the multiple idle/sleep modes and the RTCC with calendar functionality. This page synthesizes distributor pricing, same-brand drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone - giving engineers an at-a-glance comparison for sourcing, redesign, and validation.

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PIC18F25K22-E/SO - 8-bit MCU, 32KB Flash, 28-SOIC | Microchip
PIC18F25K22-E/SO

PIC18F25K22-E/SO - 8-bit MCU, 32KB Flash, 28-SOIC | Microchip

The Microchip Technology PIC18F25K22-E/SO is an 8-bit PIC microcontroller from the PIC18F K-series family, featuring 32KB of Flash program memory, 1536 bytes of SRAM, and 256 bytes of EEPROM, housed in a 28-pin SOIC (SO) package. It operates up to 20 MIPS at 64 MHz CPU clock (from a 16 MHz internal oscillator or external clock) and supports a 4.2V to 5.5V supply voltage in the extended (E) -40C to +125C temperature grade. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, data memory, and peripherals on one silicon die. MCUs sit in the embedded systems hierarchy below microprocessors and are the workhorse of low-power, deterministic control applications where a full operating system is unnecessary. The PIC18F family extends the legacy PIC16 architecture with a 16-bit program word, linear memory map, hardware multiplier, and C-friendly instruction set, while staying within the 8-bit data path for cost and code-density efficiency. Key features of the PIC18F25K22 include nanoWatt XLP extreme-low-power technology (typical sleep currents under 100 nA with retention), 25 digital I/O pins, two Enhanced USART modules, two MSSP (I2C/SPI) modules, a 12-channel 10-bit ADC with automatic acquisition, three ECCP + one CCP compare/PWM modules, and a hardware RTCC with timestamps. The integrated 16 MHz HFINTOSC is factory calibrated to +/- 2% across voltage and temperature. The architecture uses a Harvard RISC core with 49 instructions and a hardware multiply unit, supporting a C-optimized compiler (XC8) and free MPLAB X IDE. Peripheral Pin Select (PPS) remaps digital peripherals to any I/O, simplifying PCB layout. The device includes a CTMU module for capacitive touch sensing and mTouch proximity detection. Typical applications include low-power industrial sensor nodes, home-automation white-goods control boards, USB HID human-interface devices (with the internal USB-less variant), battery-powered metering, and automotive interior modules (with the I-grade part). The E (extended) temperature grade makes the PIC18F25K22-E/SO well suited to under-hood and outdoor industrial deployments. When designing, prioritize the E/SO variant only when the -40C to +125C industrial range is required - the I/SO variant (PIC18F25K22-I/SO) costs less and covers -40C to +85C commercial/industrial. Also, plan the PCB layout for a 28-SOIC with the standard 1.27 mm pitch. This page synthesizes distributor pricing, drop-in SOIC alternatives, and practical design notes that complement - but do not replace - the Microchip datasheet PDF.

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PIC18F25K22-E/SP - 8-bit 48MHz 32KB Flash XLP MCU | Microchip
PIC18F25K22-E/SP

PIC18F25K22-E/SP - 8-bit 48MHz 32KB Flash XLP MCU | Microchip

The Microchip PIC18F25K22-E/SP is an 8-bit PIC18F microcontroller from the nanoWatt XLP family, delivering up to 48 MHz CPU performance, 32 KB Flash program memory and 1536 bytes of SRAM in a 28-pin SPDIP through-hole package. The device operates from 1.8 V to 5.5 V (F-variant core range with extended -40C to +125C industrial/automotive-grade E temperature range), integrating 25 general-purpose I/O pins and a rich peripheral set including two Enhanced USART modules, two MSSP (SPI/I2C) ports, two CCP/ECCP modules, a 12-bit ADC with up to 19 channels, and nanoWatt XLP ultra-low-power technology. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, volatile and non-volatile memory, and programmable peripherals on one silicon die. Within the broader taxonomy of semiconductors, MCUs sit below microprocessors (which require external memory) and above basic logic ICs. The PIC18F family specifically represents Microchip's enhanced 8-bit architecture with 16-bit instructions, hardware multiply, and C-friendly Harvard memory layout, bridging classical 8-bit simplicity with modern peripheral integration. Key features of the PIC18F25K22 family include: 32 KB self-programmable Flash with 1 KB EEPROM data storage, an internal 16 MHz oscillator (configurable via PLL up to 64 MHz), 10-bit and 12-bit ADC modules, up to five timer modules, and CTMU support for capacitive touch sensing. The XLP nanoWatt technology typically enables sleep currents below 50 nA, making the part suitable for battery-powered sensor nodes and remote controls. The on-chip ICSP (In-Circuit Serial Programming) and ICD (In-Circuit Debug) interfaces allow production programming and field firmware upgrades without external bootloaders. The PIC18F25K22 is the lower-pin-count variant of the 28/40/44-pin PIC18F K22 family; it shares its register set and peripheral IP with PIC18F23K22 (28-pin, 8 KB Flash) and PIC18F46K22 (40/44-pin, 32 KB/64 KB Flash variants). This shared silicon platform simplifies firmware migration between packages and pin counts. Compared to older PIC18F45K20 devices, the K22 generation adds 12-bit ADC, CTMU, and improved low-power sleep modes. Typical applications include industrial sensor interfaces, HVAC controls, low-power IoT edge nodes, USB-to-UART bridges (when paired with PIC18F25K50 for USB), home appliance control boards, and automotive body modules. The 28-pin SPDIP package makes the part ideal for prototyping, breadboard work, and educational use where a DIP form factor is preferred over surface-mount variants. The development ecosystem includes MPLAB X IDE, MPLAB XC8 compiler, and the MPLAB Snap/PICkit programmers. When designing with this device, allocate the ICSP/PGD/PGC pins carefully to avoid conflicting with user I/O. Place a 100 nF decoupling capacitor as close as possible to each VDD pin, and a bulk 10 uF capacitor on the supply rail. The -E/SP temperature grade denotes -40C to +125C operation; for commercial-temperature applications the -I/SP variant may be substituted at lower cost with identical pinout. This page synthesizes real-time distributor pricing, verified drop-in alternatives within the same 28-pin SPDIP footprint, and practical design notes that complement (not duplicate) the Microchip datasheet.

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PIC18F25K22-E/SS - 8-Bit 48MHz XLP MCU 32KB Flash | Microchip
PIC18F25K22-E/SS

PIC18F25K22-E/SS - 8-Bit 48MHz XLP MCU 32KB Flash | Microchip

The Microchip Technology PIC18F25K22-E/SS is a 28-pin SSOP 8-bit PIC microcontroller featuring 32 KB (16K x 16) of Flash program memory, 1536 bytes of SRAM, and 256 bytes of EEPROM, running at speeds up to 48 MHz. The part integrates Microchip's nanoWatt eXtreme Low Power (XLP) technology for energy-sensitive designs. An 8-bit PIC microcontroller is a Harvard-architecture RISC processor optimized for deterministic real-time control. It belongs to the broader category of microcontrollers -> embedded processors -> semiconductors, and the PIC18F2X/4XK22 family is one of Microchip's mid-range flash MCU lines that balance low-power operation with rich peripheral integration. Key features of this device include 19 ADC channels with 10-bit resolution, two comparators, a 5-bit DAC, multiple Enhanced USART, SPI, and I2C interfaces, plus Capture/Compare/PWM (ECCP) modules for motor and power control. The nanoWatt XLP technology delivers typical sleep currents below 50 nA, enabling years of battery life on a single coin cell. The wide 1.8 V to 5.5 V operating range supports 2.5 V, 3.3 V, and 5 V systems. The PIC18F25K22 architecture combines a 16-bit instruction word with an 8-bit data path, internal oscillator up to 64 MHz, and a flexible peripheral pin-select (PPS) mapping scheme. The -E/SS suffix designates the extended (-40C to +125C) industrial temperature grade in a 28-lead SSOP package supplied in tube packaging. Typical applications include portable instrumentation, low-power wireless sensor nodes, consumer appliance control, battery-backed status monitors, and USB-interface-less human-interface devices where low standby current and deterministic interrupt response are required. When designing with this MCU, plan for an external decoupling network of 100 nF and 10 uF ceramic capacitors near the VDD pin and place the ICSP programming header on the board to enable in-circuit debugging with MPLAB X IDE and the MPLAB Snap or PICkit 4 tools. This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical engineering design notes not found in the standalone manufacturer datasheet, giving buyers and engineers a single reference for specification, sourcing, and design decisions.

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PIC18F25K22-I/ML - 8-bit 64MHz MCU 32KB Flash 28-QFN | Microchip
PIC18F25K22-I/ML

PIC18F25K22-I/ML - 8-bit 64MHz MCU 32KB Flash 28-QFN | Microchip

The Microchip Technology PIC18F25K22-I/ML is a nanoWatt XLP 8-bit PIC microcontroller delivering 64 MHz CPU performance from 32 KB of Flash program memory, housed in a 28-pin QFN (ML) 6x6 mm package. It integrates 1536 bytes of SRAM, 256 bytes of EEPROM, a 10-bit ADC with up to 17 analog input channels, two rail-to-rail analog comparators, and two Enhanced USART, two SPI and two I2C peripherals. The 'I' suffix denotes the industrial temperature range of -40C to +85C. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, volatile data memory, and peripherals around an 8-bit data path. The PIC18 family sits at the high end of Microchip's 8-bit portfolio, sharing a common RISC instruction set with later PIC18FxxQ10 and PIC18FxxK42 series. Within the broader taxonomy, the PIC18F25K22 belongs to the hierarchy: microcontroller -> embedded controller -> semiconductor IC. Its nanoWatt XLP technology makes the device a logical choice when battery life dominates the design envelope. Key differentiating features include 32 KB self-programmable Flash with 10K endurance cycles, 256 bytes of EEPROM for non-volatile parameter storage, a 64 MHz internal oscillator eliminating external crystals in many designs, two Enhanced Capture/Compare/PWM (ECCP) modules and one standard CCP module, plus a programmable HLVD (High/Low Voltage Detect) module for brown-out protection. The integrated mTouch capacitive touch sensing peripheral supports up to 28 channels for buttons, sliders, and proximity sensors without external components. The architecture uses a modified Harvard structure with separate program and data paths, 16-bit instructions fetched from Flash on every cycle, and an 8-bit data ALU optimized for C compiler code generation. The 31-level hardware stack and 31 interrupt vectors enable deterministic real-time response. The wide 1.8 V to 5.5 V operating range with nanoWatt XLP sleep currents below 50 nA typical makes the device a strong fit for energy harvesting and battery-backed designs. Typical applications include consumer white goods and human-machine interfaces using the mTouch peripheral, industrial sensor hubs with low-power sleep duty cycling, battery-powered IoT edge nodes, USB HID bridges when paired with an external USB transceiver, automotive interior lighting modules, and HVAC control boards. The automotive-grade -40C to +125C variant (PIC18F25K22-E/ML) extends deployment into underhood zones. When designing with this device, reserve the first 32 KB of Flash for the bootloader and application; map the ICSP/ICD pins (PGC/PGD) to dedicated test points on the PCB so the device remains in-circuit programmable. Note that newer PIC18FxxQ10 family members offer updated peripherals and improved ADC, so design teams building new platforms should evaluate PIC18F25Q10 before committing to the PIC18F25K22. This page synthesizes real-time distributor pricing, verified drop-in alternatives drawn from the same Microchip PIC18 family, and practical design notes not found in the bare manufacturer datasheet.

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PIC18F25K22-I/SO - 8-Bit 64MHz 32KB Flash MCU | Microchip
PIC18F25K22-I/SO

PIC18F25K22-I/SO - 8-Bit 64MHz 32KB Flash MCU | Microchip

The Microchip Technology PIC18F25K22-I/SO is an 8-bit PIC18 microcontroller featuring nanoWatt XLP extreme low-power technology, 32KB of Flash program memory, 1536 bytes of RAM, and a maximum CPU clock of 64MHz, housed in a 28-pin SOIC wide-body package. It integrates 256 bytes of EEPROM data memory, 25 general-purpose I/O pins, and a rich peripheral set including multiple Enhanced USART, MSSP (SPI/I2C) ports, 10-bit ADC, and Capture/Compare/PWM modules. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O into one package. The PIC18F family sits within Microchip's 8-bit PIC architecture hierarchy (PIC10/12/14/16 -> PIC18 -> 16-bit dsPIC/PIC24 -> 32-bit PIC32) and is widely adopted in cost-sensitive, low-power embedded designs where deterministic interrupt response and ultra-low standby current matter more than raw compute throughput. The K22 sub-family adds nanoWatt XLP sleep modes that drop quiescent current below 100 nA in deep sleep, making it well suited to battery-powered sensor nodes. Key features include 64MHz internal oscillator operation, 1.8V-5.5V wide VDD range (specific VDD min depends on configuration), 10-bit ADC with up to 19 channels, multiple 16-bit timers, two Enhanced USART modules supporting LIN and IrDA, two MSSP ports configurable for SPI or I2C master/slave, an enhanced PWM module with up to 7 outputs, and a charge time measurement unit (CTMU) for capacitive touch. The device supports in-circuit serial programming (ICSP) and in-circuit debug (ICD) via Microchip's MPLAB ecosystem, including MPLAB X IDE and XC8 compiler. Typical applications include consumer appliances, IoT sensor nodes, low-power remote controls, motor control subsystems, USB-to-UART bridges (paired with internal USART + external USB controller), industrial control panels, and battery-backed metering. The wide voltage range and ultra-low sleep current make it a strong choice for energy harvesting or multi-year battery-life products. When designing with this part, ensure decoupling caps (100 nF plus 1-10 uF bulk) sit within a few millimeters of VDD/AVDD pins, route MCLR through a proper reset network, and follow Microchip's recommended ICSP connector pinout if you intend field upgrades. For lowest sleep current, disable unused peripherals, switch to the 31 kHz LFINTOSC, and gate clocks via the SLEEP/IDLE modes rather than polling loops. This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design notes not found in the manufacturer datasheet alone.

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