ইন্টিগ্রেটেড সার্কিট

PIC18F27J13T-I/SS

PIC18F27J13T-I/SS - 8-bit 48MHz 128KB Flash MCU | Microchip

The Microchip Technology PIC18F27J13T-I/SS is a low-power, high-performance 8-bit PIC microcontroller from the PIC18 J-series, featuring 128 KB of Flash program memory, 4 KB of RAM, and a 48 MHz internal oscillator (12 MIPS) in a 28-pin SSOP package. The 'T' suffix indicates tape-and-reel packaging and 'I' denotes the industrial -40C to +85C operating temperature range. The 'SS' suffix designates the 0.209" body width 28-SSOP plastic package. What is a microcontroller (MCU)? An MCU is a small computer-on-a-chip that integrates a CPU core, non-volatile program memory (Flash), volatile working memory (RAM), and a rich set of peripherals such as ADC, timers, communication ports, and I/O. Microcontrollers sit at the heart of nearly every embedded system, from washing machines to industrial sensor nodes. The PIC18 family uses a modified Harvard 8-bit RISC architecture optimised for deterministic interrupt response and low-power operation. Key features of the PIC18F27J13 include nanoWatt XLP technology for ultra-low sleep currents, a 12-bit A/D converter with up to 10 channels, multiple serial interfaces (UART, SPI, I2C), and a deep-sleep mode that drops current draw to nanoamp levels for battery-powered applications. The 128 KB Flash supports in-application self-programming, allowing firmware updates in the field. Architecturally, the PIC18F27J13 pairs a wide 16-bit instruction path with 8-bit data paths, offering 12 MIPS throughput at 48 MHz. The XLP nanoWatt technology integrates multiple low-power modes, peripheral module disable, and an ultra-low-power watchdog to extend battery life in IoT edge devices. Typical applications include portable consumer electronics, battery-powered sensor nodes, USB peripherals, home appliances, and low-cost industrial controllers. The deep-sleep mode makes it especially attractive for energy-harvesting and remote monitoring applications. When designing with this part, pay close attention to the 2.0V-3.6V Vdd range (typical of the J-series) and configure the configuration bits early in the firmware to set the oscillator source and watchdog behaviour. Decouple Vdd with 100 nF and 10 uF capacitors placed within 5 mm of the supply pins. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC18F27J53-I/SO

PIC18F27J53-I/SO - 8-Bit 48MHz USB MCU 128KB Flash 28-SOIC | Microchip

The Microchip Technology PIC18F27J53-I/SO is a low-power, high-performance 8-bit PIC18J-series microcontroller featuring an integrated full-speed USB 2.0 transceiver, 128KB Flash program memory and 4KB RAM in a 28-pin SOIC package. According to the Microchip product page and FindIC datasheet entry (published 2010-06-17), it executes instructions at 48 MHz internal clock delivering up to 12 MIPS, while operating from a 2.0V to 3.6V supply rail on its core domain. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (typically Flash), working RAM, and peripherals such as timers, ADCs and communication controllers on one die. The PIC18 family implements an enhanced Harvard RISC architecture with 16-bit instructions, sitting within the broader taxonomy 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. The 18J sub-family targets low-power and USB-connected designs in the PIC18 portfolio. Key features include nanoWatt XLP deep-sleep operation for battery-powered applications, 25 general-purpose I/O pins, a 12-bit ADC with up to 10 channels, two analog comparators, two CCP/ECCP modules, and a real-time clock with calendar. The integrated USB 2.0 full-speed transceiver includes an on-chip voltage regulator and dedicated PLL, removing the need for external USB components. Architecturally, the PIC18F27J53 uses a modified Harvard bus with separate program and data paths, single-cycle hardware multiply, and an 8x8 hardware multiplier that accelerates math-intensive USB and sensor routines. Its 128KB self-programmable Flash supports ICSP (In-Circuit Serial Programming) and runtime firmware updates, while the 4KB RAM and 1KB EEPROM-style data storage provide scratch and non-volatile parameter space. Typical applications include USB human-interface devices (HIDs), embedded data loggers with USB connectivity, industrial sensor nodes, low-cost instrumentation, and consumer appliances that need a single-chip USB interface. The PIC18F27J53-I/SO is the 28-SOIC industrial-temperature variant (-40C to +85C) of the family. When designing with this part, observe the dual-rail voltage architecture: the I/O and core domain runs from VDDCORE (typically 2.0-3.6V regulated from VBUS or VBAT), while the USB transceiver domain requires 3.0-3.6V on VUSB. Always bulk-decouple each supply pin with at least 0.1uF ceramic capacitance placed within 3 mm of the pin. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes that complement - not duplicate - the manufacturer datasheet, giving procurement and embedded engineers an actionable decision matrix in one view.

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PIC18F27J53-I/SP

PIC18F27J53-I/SP - 8-bit 48MHz USB MCU, 128KB Flash, 28-SPDIP | Microchip

The Microchip Technology PIC18F27J53-I/SP is an 8-bit PIC18 XLP microcontroller clocked up to 48 MHz, featuring integrated full-speed USB 2.0, 128 KB of Flash program memory, 4 KB of RAM, and a 12-bit ADC, all housed in a 28-pin SPDIP (0.300", 7.62 mm) through-hole package. It is part of the PIC18 J-series and combines high-performance MIPS-based execution with nanoWatt XLP ultra-low-power technology for energy-constrained designs. What is a microcontroller? A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), data memory (RAM), and programmable peripherals on one die. The PIC18F27J53 sits in the PIC18 8-bit family hierarchy as: PIC18F27J53 -> PIC18 J-series -> PIC18 family -> 8-bit PIC microcontroller -> Microchip MCU portfolio -> embedded controller IC. Its XLP technology (eXtreme Low Power) provides deep-sleep currents in the nanoamp range, targeting battery-powered and USB-powered embedded designs. Key features include 12 MIPS peak performance at 48 MHz, 22 channels of 10/12-bit ADC, two analog comparators, hardware DMA moving data between peripherals without CPU intervention, full-speed USB 2.0 device/host/OTG, four 16-bit timers, two MSSP (SPI/I2C), two UART modules, and a CTMU charge-time measurement unit for capacitive touch. The 28-SPDIP package offers through-hole ease-of-use for prototyping and breadboarding while still exposing the full peripheral set. Architecturally, the PIC18F27J53 uses a Harvard RISC core with a hardware multiplier, 16-bit instructions, and dedicated peripheral DMA channels that allow ADC captures, PWM updates, and USB transfers to run independently of the CPU. This offloading enables deterministic real-time performance and frees the core for application logic in motor control, sensor fusion, or USB HID applications. Typical applications include USB peripherals such as HID mice/keyboards, CDC virtual COM ports, and audio class devices; industrial sensor nodes using CTMU-based capacitive touch; battery-powered data loggers exploiting nanoWatt XLP sleep currents; small motor control subsystems leveraging PWM and timers; and consumer devices requiring mixed-signal integration with USB connectivity. When designing with this part, ensure the USB D+/D- lines are routed as a 90-ohm differential pair with the required 15 kohm pull-down on D- in device mode. The wide operating voltage (2.0V-3.6V core / 4.2V-5.5V USB-capable) requires careful LDO selection when powering USB rails. This page consolidates distributor pricing, verified drop-in alternatives, and practical design notes not found on the manufacturer datasheet.

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PIC18F27J53T-I/ML

PIC18F27J53T-I/ML - 8-bit USB MCU 128KB Flash 28-QFN | Microchip

The Microchip Technology PIC18F27J53T-I/ML is a low-power, high-performance 8-bit PIC18 J-series flash microcontroller with integrated full-speed USB 2.0, 128 KB of Flash program memory, 4 KB of RAM, and 48 MHz (12 MIPS) operation, housed in a 28-pin QFN (6x6 mm) package. The 'T' suffix denotes Tape & Reel packaging for high-volume assembly, while 'I' indicates the industrial temperature grade (-40C to +85C). The 'ML' suffix denotes the 28-QFN package. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, working RAM, and programmable peripherals. The PIC18F27J53 belongs to the 8-bit PIC18 family, which uses Microchip's enhanced RISC architecture; the broader taxonomy is: PIC18F -> PIC18 family -> 8-bit MCU -> microcontroller -> embedded IC -> semiconductor. 8-bit MCUs are widely used in cost-sensitive, deterministic embedded designs where peripherals and interrupt latency matter more than raw compute throughput. Key features include nanoWatt XLP technology for deep sleep current in the nanoamp range, an integrated full-speed USB 2.0 transceiver (no external crystal required), a 12-bit A/D converter with up to 10 channels, two analog comparators, two CCP modules, an Enhanced USART, MSSP (SPI/I2C), two 8-bit timers and three 16-bit timers, and a real-time clock with calendar. The 28-QFN (6x6) package supports compact board layouts with good thermal dissipation through the exposed pad. Architecture-wise, the device uses a 16-bit instruction word with a two-stage pipeline and a hardware multiplier, allowing sustained 12 MIPS throughput at 48 MHz. The integrated USB module complies with USB 2.0 full-speed (12 Mbps) and supports HID, CDC, and vendor-class drivers without an external PHY. Deep-sleep current is rated in the nanoamp range per nanoWatt XLP branding, making the part well-suited to battery-powered applications. Typical applications include USB peripherals such as HID game controllers and CDC serial bridges, low-power sensor nodes with periodic wake-and-transmit cycles, industrial control panels with mixed analog and digital I/O, and consumer appliances requiring USB connectivity or battery operation. The 128 KB Flash / 4 KB RAM balance gives ample headroom for USB stacks plus application code. When designing with this MCU, route the USB DP/DM lines as a 90-ohm differential pair and tie the exposed pad (EP) of the QFN to a continuous ground plane for thermal and EMC performance. The internal 8 MHz HFINTOSC is sufficient for full-speed USB when properly calibrated, eliminating an external crystal in cost-sensitive designs.

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PIC18F27J53T-I/SS

PIC18F27J53T-I/SS - 8-bit USB MCU 128KB Flash 28-SSOP | Microchip

The Microchip Technology PIC18F27J53T-I/SS is a low-power, high-performance 8-bit PIC18 J-series microcontroller integrating full-speed USB 2.0 with on-chip transceiver, 128 KB Flash program memory, 3.8 KB RAM, and a 10-channel 12-bit ADC, all housed in a 28-pin SSOP package. The 'T' suffix denotes tape-and-reel packaging for high-volume SMT assembly, while 'I/SS' indicates the industrial temperature grade (-40C to +85C) and SSOP package. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), data memory (RAM), and programmable peripherals on one die. The PIC18 family uses a RISC architecture with 16-bit instructions optimized for C compilation, sitting within the broader hierarchy: PIC18 -> 8-bit PIC microcontrollers -> microcontroller -> embedded computing IC -> semiconductor. The PIC18F27J53T-I/SS specifically belongs to the PIC18 J-series, which adds full-speed USB 2.0 and nanoWatt XLP deep-sleep modes to the standard PIC18 feature set, targeting cost-sensitive USB-enabled embedded designs. Key differentiating specifications include a 48 MHz internal oscillator providing up to 12 MIPS throughput, 22 digital I/O pins, two analog comparators, two UART/USART, two SPI, two I2C, one USB full-speed 2.0 device/host/OTG controller with internal transceiver, 256 bytes EEPROM, CTMU for capacitive touch, and deep-sleep current down to approximately 20 nA in nanoWatt XLP mode. The 28-SSOP footprint measures 7.50 mm x 5.60 mm with 0.65 mm pitch, suitable for moderate-density designs that need more I/O than the 20-pin PIC18F25J53 sibling. Typical applications include USB human-interface devices (HID keyboards, mice, game controllers), USB-to-UART bridges, USB sensors (temperature, gas, biomedical), low-power data loggers, capacitive touch buttons with USB interface, industrial control with USB diagnostics, and consumer accessories such as USB audio controls. The integrated USB transceiver eliminates the need for an external PHY, reducing BOM cost and PCB area. When designing with this device, place the VUSB decoupling capacitor close to the VUSB pin, ensure the 48 MHz PLL is configured per the datasheet's oscillator tuning section, and observe the 3.6 V absolute maximum on VDD - the PIC18 J-series is NOT 5V tolerant. Connect unused I/O pins to defined logic levels to minimize current draw. This page synthesizes distributor pricing, drop-in alternatives within the PIC18 family, and practical design notes not found in the manufacturer datasheet, helping procurement and firmware engineers select the right USB-enabled 8-bit MCU for cost-sensitive embedded products.

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PIC18F27K40-E/SS

PIC18F27K40-E/SS - 8-bit MCU, 128KB Flash, 64MHz, 28-SSOP | Microchip

The Microchip Technology PIC18F27K40-E/SS is an 8-bit PIC18 RISC microcontroller featuring 128KB Flash, 4KB RAM, and 256B EEPROM, operating at 64 MHz in a 28-pin SSOP package. Extended temperature grade -40C to +125C, 3.0V to 5.5V supply, 10-bit ADC, 5-bit DAC, and Core Independent Peripherals (CWG, WWDT, CRC/Scan). A microcontroller (MCU) is a single-chip computer containing a CPU, non-volatile program storage (Flash/ROM), volatile working memory (RAM), and a mix of peripherals such as ADC, timers, communication, and PWM. Within the system taxonomy it belongs to embedded controllers -> microcontrollers -> 8-bit MCUs -> semiconductor ICs. PIC18 series devices use an enhanced Harvard RISC architecture, separating program and data buses for deterministic instruction throughput. Key features include 49 instruction set, 16-bit instructions, hardware multiplier, XLP (eXtreme Low Power) technology, and direct LED drive capability on I/O pins. Core Independent Peripherals (CIPs) such as the Complementary Waveform Generator (CWG), Windowed Watchdog Timer (WWDT), and CRC/Scan can operate without CPU intervention, offloading timing-critical tasks and lowering active-core power. Technical depth: the part integrates 24 channels of 10-bit ADC, a 5-bit DAC, multiple Capture/Compare/PWM (CCP) modules, Enhanced USART, MSSP (SPI/I2C), and hardware touch/hardware treatment peripherals. The 64 MHz internal oscillator and 16-bit instruction width deliver up to 16 MIPS computational throughput. XLP technology yields typical sleep currents below 50 nA, suiting long-life battery applications. Typical applications include low-power IoT sensor nodes, LED lighting controllers, home appliance user interfaces, industrial sensor signal conditioning, and battery-powered handheld instruments. The combination of 128KB Flash and rich CIP integration reduces external component count and firmware complexity. Design consideration: when migrating code from a PIC18F25K22 or PIC18F27K42, validate interrupt mapping and peripheral pin-select (PPS) assignments, as the K40 family uses enhanced PPS that may differ from older PIC18 baselines. Operate within 3.0V-5.5V VDD; programming voltage is internally managed. This page synthesizes distributor pricing, drop-in alternatives, comparison matrix, and practical design notes not found in the manufacturer datasheet alone.

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PIC18F27K40-I/ML

PIC18F27K40-I/ML - 8-Bit 64MHz 128KB Flash MCU | Microchip

The Microchip Technology PIC18F27K40-I/ML is an 8-bit PIC microcontroller in the PIC18 K40 family, featuring 128 KB (64K x 16) of Flash program memory, 64 MHz operation, and a 28-pin 6x6 mm QFN package with exposed thermal pad (ML). Per the Microchip datasheet "40001802D", the device includes Core Independent Peripherals (CIPs) such as the Configurable Logic Cell (CLC), Complementary Waveform Generator (CWG), Windowed Watchdog Timer (WWDT), and Cyclic Redundancy Check (CRC) module, all of which offload tasks from the CPU. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, program Flash, and peripherals around an 8-bit data bus. PIC18 K40 devices sit in the hierarchy PIC18F -> 8-bit PIC microcontroller -> PIC MCU family -> embedded microcontroller, balancing low power (XLP technology) with rich peripherals suited to general-purpose 5V applications. This category encompasses devices used where deterministic behavior, simple toolchains, and low system cost outweigh the need for 32-bit throughput. Key features include 128 KB Flash with self-programmability, 3.7 KB RAM, 1 KB EEPROM, 24 analog-capable digital I/O pins, a 10-bit ADC, up to four PWM outputs, four 8-bit timers plus 3 16-bit timers, and configurable logic cells. The XLP Sleep mode draws extremely low current, enabling battery-powered designs. The 5V-tolerant I/O and wide 2.3V-5.5V supply range cover industrial and consumer rail requirements. Architecturally, the device employs a C-compiler-optimized RISC core with hardware multiply and a 31-level hardware stack. Bus speed scales up to 64 MHz via a 16 MHz internal oscillator plus 4x PLL, achieving 16 MIPS throughput. The 14-bit instruction set remains compatible with prior PIC18 code, easing migration from older 8-bit designs. Typical applications include battery-powered sensor hubs, home appliance controls, automotive accessory modules, industrial HMI panels, motor control loops, and USB-to-UART bridges. The combination of XLP low power, large Flash, and CIP peripherals makes it appropriate for designers migrating from legacy PIC16 to PIC18 K40 silicon. When designing, ensure the exposed thermal pad on the 28-QFN package is soldered to a properly sized ground copper pour for thermal dissipation; otherwise expect elevated junction temperatures at high ambient. Use Microchip's MPLAB X IDE with the XC8 compiler for code generation and debugging via ICSP. This page consolidates distributor pricing, drop-in alternative mapping, and design notes not found in a single resource - supporting both engineer evaluation and procurement decisions as of 2026-09-27.

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PIC18F27K40-I/SP

PIC18F27K40-I/SP - 64MHz 8-bit MCU 128KB Flash 28-SPDIP | Microchip

The Microchip Technology PIC18F27K40-I/SP is a 28-pin, 8-bit PIC microcontroller in the SPDIP (Skinny Plastic Dual-In-Line) through-hole package, integrating 128 KB of Flash program memory, 4 KB of SRAM, and 256 bytes of EEPROM with a 64 MHz CPU core that delivers 16 MIPS of instruction throughput. It is qualified for an industrial -40 °C to +85 °C operating range and a wide 1.8 V to 5.5 V supply range, making it tolerant of legacy 5 V analog front-ends. A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, working RAM, and configurable I/O peripherals on one die. The PIC18 family uses an 8-bit modified Harvard architecture with separate program and data buses, optimized for deterministic interrupt response and low-power operation. Within Microchip's taxonomy, the PIC18F27K40 belongs to the PIC18 "K-series" (low-power, XLP, 5 V tolerant) and is upward-compatible with the PIC16 instruction set, allowing code reuse from older designs. Key feature highlights include 64 MHz maximum CPU clock (16 MIPS), 1.8 V to 5.5 V wide operating voltage range, eXtreme Low Power (XLP) modes with nanoWatt technology for sleep currents in the sub-microamp region, and 36 instruction-set additions over baseline PIC18. The 28-SPDIP package supports through-hole assembly and breadboard-friendly prototyping, while rich Core Independent Peripherals (CIPs) such as CWG, Windowed WWDT, CRC/SCAN memory scan, PWM/CCP, ZCD, EUSART, SPI/I2C, a 10-bit ADC with Computation (ADCC), and a 5-bit DAC offload tasks traditionally handled by the CPU. Architecturally the device leverages CIPs - CWG, PWM, CCP, ADCC, CRC/SCAN, ZCD - to deliver deterministic event-driven behaviour and lower active-mode CPU loading. Peripheral Pin Select (PPS) remapping simplifies PCB routing by allowing most digital peripherals to be mapped to multiple pins, while the ADC inputs remain on fixed pins. Typical applications include industrial sensor nodes, low-power IoT endpoints, battery-powered home automation, automotive body and aftermarket modules (sub-system level), and consumer white goods with touch or display interfaces. The 5 V tolerance makes it well-suited to legacy 5 V analog front-ends that still dominate HVAC, appliance, and industrial sensor designs. When designing with this part, plan the Peripheral Pin Select (PPS) map early - most digital peripherals are remappable, but ADC inputs are not. Allocate adequate decoupling (100 nF per VDD pair) and reserve a robust in-circuit serial programming (ICSP) header for production-line firmware updates. This page consolidates current distributor pricing and pin-compatible alternatives not summarized in the manufacturer datasheet.

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PIC18F27K40-I/SS

PIC18F27K40-I/SS - 8-bit 64MHz 128KB Flash MCU | Microchip

The Microchip Technology PIC18F27K40-I/SS is an 8-bit PIC18 RISC microcontroller running at up to 64MHz internal clock, integrating 128KB of Flash program memory, 4KB of SRAM, and 1KB of EEPROM in a 28-pin SSOP package. It is part of the PIC18(L)F2x/4xK40 family built on Microchip's eXtreme Low Power (XLP) technology platform and operates from 2.3V to 5.5V. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (RAM), non-volatile data storage (EEPROM), and a rich set of on-chip peripherals such as timers, ADCs, communication interfaces, and programmable I/O. The PIC18 architecture is a C-compiler-optimized enhanced RISC core, occupying a position in the taxonomy: MCU -> 8-bit MCU -> PIC18 family -> XLP low-power family -> semiconductor. This part belongs to the broader Microchip 8-bit PIC microcontroller lineup, which has dominated industrial, automotive, and consumer embedded designs for decades due to deterministic instruction execution and mature toolchain support. Key features include 25 analog-capable I/O pins, a 10-bit ADC with up to 24 channels, two comparators with 5-bit DAC references, two CCP modules, a 10-bit PWM module, a Complementary Waveform Generator (CWG), Windowed Watchdog Timer (WWDT), and a Cyclic Redundancy Check (CRC/SCAN) engine. Communication peripherals comprise two I2C, two SPI, and two USART (LIN-capable) modules, giving designers ample wired connectivity headroom. The XLP sleep current of approximately 50 nA and an active current below 1 mA/MHz make the device well-suited for battery-powered and energy-harvesting designs. The PIC18F27K40-I/SS uses a pipelined Harvard architecture with separate program and data buses, allowing simultaneous fetch and access. Its MIPS-per-MHz efficiency and predictable interrupt response are reasons engineers continue selecting PIC18 for hard real-time control loops, sensor conditioning, and human-machine interface tasks. Core Independent Peripherals (CIPs) such as CWG, WWDT, and CRC offload tasks from the CPU, freeing cycles for application code and improving system robustness. Typical applications include industrial sensor nodes, IoT edge controllers, low-power meter reading, motor and solenoid drives, automotive body and lighting controllers, USB-to-UART bridges, and consumer home appliances. The wide 2.3V-5.5V operating range allows direct connection to a single Li-ion cell or a regulated 5V rail, simplifying power-tree design across battery and line-powered products. When laying out a PIC18F27K40 design, place the decoupling capacitor (typically 100 nF plus a 1-10 uF bulk) within 5 mm of the VDD pin, keep the MCLR pull-up close to the IC, and route the analog AVdd/AVss pair with a star ground to the reference for clean ADC readings. Always confirm pinout against the latest Microchip datasheet revision before committing to PCB fabrication. This page synthesizes pricing tiers from authorized distributors, drop-in alternatives across multiple vendors, and practical design notes that go beyond the manufacturer datasheet, enabling faster sourcing and schematic entry decisions.

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PIC18F27K40T-I/ML

PIC18F27K40T-I/ML - 128KB Flash 8-bit MCU, 28-QFN | Microchip

The Microchip Technology PIC18F27K40T-I/ML is a low-power, high-performance 8-bit PIC18 microcontroller with 128KB Flash, 4KB RAM, and 1KB EEPROM, packaged in a 28-pin 6x6 mm QFN (ML). It operates at up to 64 MHz, supports 2.5V to 5.5V supply (5V tolerant), and is qualified for the industrial -40C to +85C range. What is an 8-bit PIC microcontroller? An 8-bit MCU executes instructions on 8-bit-wide data and is the workhorse of embedded control. The PIC18 family from Microchip uses an enhanced RISC architecture with hardware multiply and a 16-bit instruction word, sitting above baseline PIC10/12/16 devices in both performance and peripheral integration. Within the power-management IC hierarchy, MCUs like this belong to the broader category of microcontrollers and digital signal controllers (DSCs), which themselves sit under the umbrella of integrated circuits (ICs) and semiconductors. Key features include XLP (eXtreme Low Power) technology with nanoWatt sleep modes, a 10-bit ADC2 with Computation, a 5-bit DAC, two comparators, Capture/Compare/PWM (CCP), the Complementary Waveform Generator (CWG), HLT (Hardware Limit Timer), Windowed Watchdog Timer (WWDT), CRC/SCAN memory scan, and the Peripheral Pin Select (PPS) for flexible I/O mapping. The 28-QFN 6x6 mm footprint suits compact designs while keeping most pins available for peripherals. The architecture combines the standard PIC18 core with Core Independent Peripherals (CIPs) that operate without CPU intervention, enabling deterministic timing, lower software overhead, and lower system power. On-chip FVR, 256-byte EEPROM emulation, and PPS routing simplify BOM and PCB layout. Typical applications include IoT sensor nodes, white goods and HVAC control, low-power battery instrumentation, motor and lighting control via CWG/PWM, USB-to-UART bridge co-processors, and general-purpose industrial nodes. Designers also drop this part into automotive aftermarket and 5V-tolerant retrofits. For robust designs, place a 0.1 uF decoupling capacitor within 3 mm of each VDD/VSS pair and observe the in-circuit programming pinout. The PPS feature is useful when migrating from older PIC18F2XK22 designs where pin multiplexing differs. This page consolidates manufacturer datasheet values, current distributor pricing, and a curated same-brand drop-in cross-reference that goes beyond the data labeled in the brief.

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PIC18F27K40T-I/MLVAO

PIC18F27K40T-I/MLVAO - 128KB Flash 8-bit MCU | Microchip

The Microchip Technology PIC18F27K40T-I/MLVAO is an 8-bit PIC microcontroller delivering 128KB Flash, 4KB SRAM, and 1KB EEPROM in a 28-pin VQFN (6x6 mm) package with exposed thermal pad, engineered around the eXtreme Low Power (XLP) architecture for general-purpose 5V applications. The device runs at 64MHz (16 MIPS) and integrates a 10-bit ADC with Computation (ADC2), a 5-bit DAC, two comparators, PWM, CWG (Complementary Waveform Generator), HLT (Hardware Limit Timer), WWDT (Windowed Watchdog Timer), CRC/Memory Scan, Hardware CVD, Zero-Cross Detect, and Peripheral Pin Select. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, data EEPROM, and a configurable peripheral set. PIC18F-series MCUs are 8-bit Harvard-architecture devices from Microchip with an enhanced instruction set, RISC-like pipeline, and a rich core-independent peripheral (CIP) ecosystem that lets analog and timing functions run without CPU intervention. Within Microchip's product hierarchy, the PIC18F27K40 sits between PIC16F baseline parts and PIC24F/dSPIC 16-bit devices, offering higher code density and stronger analog integration than PIC16F at lower cost and lower power than PIC24. Key features include four 16-bit timers, four CCP/ECCP modules, two I2C, two SPI, one UART with LIN support, DMA-like interrupt structure, and a wide 2.3V to 5.5V operating range. The device supports up to 25mA source/sink per I/O, an internal 32kHz and 16MHz oscillator with PLL, and a vectored interrupt controller. Core-independent peripherals such as CWG and HLT let designers offload waveform generation and timing-critical events from the core. The "MLVAO" suffix designates the automotive AEC-Q100 qualified variant in VQFN-28 packaging, the "T" denotes Tape and Reel, "I" denotes -40C to +85C industrial temperature, and the QFN (Quad Flat No-leads) exposed pad enhances thermal dissipation for high-pin-count or higher-speed designs. This combination makes it ideal for noise-sensitive or thermally constrained designs where SSOP/QFP packages are unsuitable. Typical applications include automotive body electronics, sensor conditioning nodes, motor control (BLDC, stepper, fan), LED lighting controllers, IoT edge nodes, industrial sensor hubs, and low-power battery-powered instruments. The integrated 10-bit ADC2 with computation and Hardware CVD support enables capacitive touch sensing and signal conditioning without external analog front ends. When designing with this part, route the exposed pad (EP) to a continuous ground plane with multiple thermal vias to maximize heat transfer. For automotive deployments, validate the AEC-Q100 qualification status against the specific revision under PPAP, and respect the MSL3 moisture sensitivity for the QFN-28 package during reflow profile programming. This page synthesizes distributor pricing, AEC-Q100 qualified drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC18F27K40T-I/SS

PIC18F27K40T-I/SS - 128KB Flash 8-bit MCU, 28-SSOP | Microchip

The Microchip Technology PIC18F27K40T-I/SS is a high-performance 8-bit PIC18 microcontroller with 128 KB of Flash program memory, 4 KB of RAM, and 256 bytes of EEPROM, running at up to 64 MHz in a 28-pin SSOP package. It is the tape-and-reel (T/R) variant of the PIC18F27K40-I/SS, sharing an identical die and pinout, designed for low-power (XLP) general-purpose embedded applications. What is a PIC18 microcontroller? PIC18 is Microchip's high-end 8-bit microcontroller family, using a RISC architecture with C-compiler-friendly instruction set, large memory options, and rich Core Independent Peripherals (CIPs). The PIC18F27K40 belongs to the K40 sub-family, which adds eXtreme Low-Power (XLP) technology for battery-powered designs, support for 2.5V to 5.5V operation, and integrated analog peripherals such as a 10-bit ADC with Computation (ADC2), a 5-bit DAC, comparators, and zero-cross detect. Within the broader taxonomy, PIC18 belongs to microcontrollers -> 8-bit MCU -> embedded controller -> semiconductor IC. Key features include 24 channels of 10-bit ADC2, a 5-bit DAC, two comparators with selectable references, CWG (Complementary Waveform Generator), multiple PWM and CCP modules, hardware CRC/Memory Scan, a Windowed Watchdog Timer (WWDT), Peripheral Pin Select (PPS), and 35 I/O pins. The XLP technology provides nanoWatt sleep currents suitable for battery and energy-harvesting designs, while 5V tolerance simplifies industrial interface requirements. The PIC18F27K40 implements a Harvard architecture with separate program and data buses, a modified RISC instruction set (83 base instructions, single-cycle except branches), and self-programmable Flash with block-level write protection. Core Independent Peripherals such as CWG, WWDT, and ADC2 with hardware averaging execute without CPU intervention, freeing the core for application logic and reducing firmware complexity. Typical applications include industrial sensor interfaces, low-power IoT edge nodes, home appliance controllers, automotive body electronics, USB-CDC human-interface devices (with on-chip MSSP/CAN peripherals depending on family), and general-purpose 5V embedded systems. The XLP features make the part attractive for battery-powered metering and remote-control designs. When designing with this device, ensure that the ICSP/PGD/PGC programming pins are accessible on the PCB for in-system programming and debugging. The wide 2.5V-5.5V supply range allows direct operation from a single Li-ion cell or a regulated 5V rail; however, the maximum ADC sampling rate is limited at lower Vdd values. PPS provides flexible peripheral-to-pin mapping but must be locked after configuration to prevent accidental re-mapping during runtime. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that complement - and in places go beyond - the manufacturer datasheet, helping engineers select, source, and integrate the PIC18F27K40T-I/SS more efficiently.

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PIC18F27K42-E/ML

PIC18F27K42-E/ML - 64MHz 8-Bit MCU 128KB Flash 28-QFN | Microchip

The Microchip Technology PIC18F27K42-E/ML is an 8-bit PIC18 microcontroller from the PIC18FxxK42 family, featuring a 64 MHz CPU core, 128 KB of Flash program memory, 8 KB of SRAM and 1 KB of EEPROM, and is housed in a 28-pin QFN (6x6 mm) exposed-pad package. The part integrates a rich set of core-independent peripherals including a 12-bit ADC with Computation (ADC2), two 10-bit DACs, three analog comparators, vectored interrupts, DMA, and configurable logic cells, making it well suited to mixed-signal embedded designs. It also supports XLP (eXtreme Low Power) technology with sub-uA sleep currents, suitable for battery-powered and energy-harvesting products. The device operates from 2.3 V to 5.5 V across the -40C to +125C industrial temperature range. An 8-bit microcontroller (MCU) is a single-chip computer based on an 8-bit data-bus CPU, typically with on-chip Flash, RAM, EEPROM, and a broad set of peripherals. The PIC18 family uses an enhanced RISC Harvard architecture with a modified 16-bit instruction word and 8-bit data path, sitting between simple PIC10/PIC12/PIC16 baseline parts and the 16-bit PIC24/dsPIC families. PIC18FxxK42 devices target low-power, mixed-signal applications by combining a fast 64 MHz core with intelligent analog, DMA-driven data movement, and XLP sleep modes for IoT edge nodes, sensor hubs, and human-interface products. Key features of the PIC18F27K42-E/ML include 24 digital I/O pins, multiple serial interfaces (UART, SPI, I2C with SMBus/PMBus support), up to four 10-bit PWM channels with complementary outputs and dead-band control, and a 12-bit ADC2 with up to 35 analog channels and hardware accumulation/averaging. Hardware math acceleration, a single-cycle multiplier, and 31 KB of data EEPROM endurance support efficient C-compiled firmware. The device is supported by the MPLAB X IDE, MPLAB XC8 compiler, and the MPLAB Code Configurator (MCC) for rapid peripheral setup. Typical applications include industrial sensor conditioning, low-power IoT sensor nodes, battery-powered HMI controls, motor and lighting control front-ends, and small-form-factor consumer electronics that benefit from integrated 12-bit ADC and DAC. The 28-QFN footprint supports compact PCB layouts for space-constrained designs while still exposing all analog and digital features of the K42 family. Engineers should follow Microchip AN2931 (Getting Started with PIC18FxxK42) and the device datasheet for oscillator, decoupling, and in-circuit serial programming (ICSP) recommendations.

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PIC18F27K42-E/SP

PIC18F27K42-E/SP - 64MHz 128KB Flash 8-bit MCU | Microchip

The Microchip Technology PIC18F27K42-E/SP is an 8-bit PIC18F microcontroller running at up to 64 MHz with 128 KB of Flash, 8 KB of SRAM and 1 KB of EEPROM, housed in a 28-pin SPDIP (0.300 inch, 7.62 mm) package. It belongs to the PIC18F K42 family, an XLP (eXtreme Low Power) family built around Core Independent Peripherals (CIPs), on-chip DMA, and vectored interrupts for fast deterministic response without CPU load. An 8-bit PIC microcontroller (MCU) is a Harvard-architecture, RISC-style processor with separate program and data buses optimized for deterministic real-time control. The PIC18F line is Microchip's mid-to-high end 8-bit family, sitting above the PIC16F and base PIC18 lines and offering larger memories, richer peripherals, and more complex interrupt handling. K42 devices in particular add intelligent analog (12-bit ADC with computation, DAC, comparators), configurable logic cells, and high-resolution PWM, making them suitable as system-level controllers in mixed-signal designs. Key features of the PIC18F27K42-E/SP include 25 general-purpose I/O pins, four 16-bit timers, four CCP/ECCP modules, two I2C, two SPI, two UART, up to 16-channel 12-bit ADC, 5-bit DAC, two comparators, a CLC (Configurable Logic Cell) block, and a peripheral DMA controller that moves data between memory and peripherals without CPU intervention. The XLP nanoWatt technology delivers typical sleep currents in the nanoampere range, and an extended operating voltage range of 1.8 V to 5.5 V (industrial) suits both coin-cell and USB-powered or industrial 5 V rails. The architecture uses a 16-bit instruction word and a 16-byte deep hardware stack, with vectored interrupts prioritizing on-chip peripherals for fast deterministic response. The device also supports device firmware upgrades via dual Flash partitions and is supported by MPLAB X IDE, MPLAB XC8 compiler and MPLAB Code Configurator (MCC) free of charge, dramatically reducing time-to-prototype. Typical applications include low-power IoT sensor nodes, industrial control subsystems, consumer appliances, USB peripherals, motor control (BLDC/PMSM FOC), LED lighting controllers, and battery-powered measurement instruments. Designers pick this MCU when they need a rich peripheral set and large Flash in a familiar 28-pin DIP footprint for prototyping or hand-rework-friendly production. When designing with this device, populate the Vcap pin with a low-ESR capacitor, use 1% decoupling on each supply pin, and route the 64 MHz Fosc trace away from analog inputs. Watch the absolute maximum VDD of 5.5 V and remember that the -E suffix denotes the -40C to +125C extended operating temperature grade, suitable for industrial environments. This page synthesizes distributor pricing and stock data, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet alone, helping engineers and procurement teams evaluate the PIC18F27K42-E/SP for new designs and second-source qualification.

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PIC18F27K42-E/SS

PIC18F27K42-E/SS - 64MHz 8-bit MCU, 128KB Flash | Microchip

The Microchip Technology PIC18F27K42-E/SS is an 8-bit PIC microcontroller from the PIC18 K42 family, featuring a 64 MHz maximum CPU clock, 128 KB of Flash program memory, 8 KB of SRAM, and 1 KB of EEPROM in a 28-pin SSOP package. It integrates XLP (eXtreme Low Power) technology, Core Independent Peripherals (CIPs), a 12-bit ADC2, a 5-bit DAC, and DMA to offload data movement from the CPU. An 8-bit microcontroller (MCU) is a single-chip processor with an 8-bit data path, optimized for embedded control in cost- and power-sensitive designs. Within the semiconductor taxonomy, an MCU belongs to the integrated circuit family, sits below microprocessors in raw compute but above simple state machines in peripheral integration, and serves as the central controller in appliance, automotive, industrial, and IoT end products. The PIC18 K42 family specifically targets mixed-signal designs with on-chip analog and high-resolution PWM. Key features of the PIC18F27K42-E/SS include 25 I/O pins, vector interrupts with prioritized interrupt controllers, a configurable logic cell (CLC), multiple PWM channels with 16-bit resolution, and four 16-bit timers. The device operates from 2.3 V to 5.5 V with active-mode currents below 5 mA at full speed and sleep currents in the nanoamp range under XLP modes. The 12-bit ADC2 supports up to 24 channels with internal voltage reference. Architecturally, the PIC18F27K42 uses an enhanced Harvard RISC core with a 16-bit instruction word and 8-bit data path, paired with a 31-level hardware stack and hardware multiply/divide. DMA, CLC, and CIPs allow complex sequencing (signal measurement, motor commutation, SMPS control) to run without CPU wakeups, dramatically lowering average power. The integrated vector interrupt controller with hardware priority accelerates deterministic response for real-time control loops. Typical applications include low-power IoT sensor nodes, BLDC/PMSM motor drive control, LED lighting controllers, USB-to-UART bridges when paired with an external PHY, and consumer white goods. The wide operating temperature range of -40 °C to +125 °C also makes the PIC18F27K42-E/SS suitable for harsh industrial environments. When designing with this MCU, plan pin assignments carefully: the 28-pin SSOP exposes three power domains (VDD, VDDIO2, AVdd) that must each be bypassed. Always enable the BOR and PWRT in configuration bits to improve in-field reliability on noisy power rails. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC18F27K42-I/ML

PIC18F27K42-I/ML - 8-Bit 64MHz 128KB Flash MCU | Microchip

The Microchip PIC18F27K42-I/ML is an 8-bit PIC microcontroller from the PIC18FxxK42 family running at up to 64 MHz, integrating 128 KB of Flash program memory, 8 KB of RAM, and 1 KB of EEPROM in a 28-pin QFN (ML) 6x6 mm package. It is part of the XLP (eXtreme Low Power) family and ships with rich core-independent peripherals, intelligent analog peripherals (ADC2 with computation, 12-bit DAC, comparators, CVD), and multiple communication interfaces including UART, SPI, and I2C. An 8-bit PIC microcontroller (MCU) is a small, self-contained computer-on-a-chip built around an 8-bit data path and Harvard architecture. Within the embedded hierarchy, it sits under MCU -> microcontroller -> embedded processor -> semiconductor. PIC18F parts are Microchip's mid-range 8-bit family aimed at general-purpose and low-power embedded designs, bridging the 8-bit PIC16/16F and 16-bit dsPIC families. Key specifications include a 64 MHz maximum CPU clock (16 MIPS), 2.3 V to 5.5 V supply voltage with operation down to 1.8 V in LF variants, 12-bit ADC2 with up to 35 channels and automated post-processing, a 5-bit and 12-bit DAC, four 16-bit timers, two CCP/PWM modules, hardware CVD for capacitive touch, DMA, vector interrupts, and a Device Information Area (DIA). The QFN-28 6x6 mm package provides a compact thermal pad footprint suitable for space-constrained designs. Architecturally, the PIC18F27K42 uses an enhanced mid-range core with a hardware multiplier, indexed addressing, and C-optimized architecture, enabling efficient compiled C code with the MPLAB XC8 compiler. The integrated Direct Memory Access (DMA) controller can move data between peripherals and memory without CPU intervention, freeing the core for application logic and lowering active-mode current draw. The ADC2 block performs averaging, oversampling, threshold comparison, and filtering in hardware, which is uncommon in 8-bit MCUs. Typical applications include IoT sensor nodes, low-power battery-powered instrumentation, home appliances, industrial control, capacitive touch user interfaces, LED lighting controllers, automotive body electronics, and USB-to-UART bridge firmware when paired with the on-chip UART. The XLP features (sleep currents in the nA range, IDLE and DOZE modes) make it especially attractive for energy-harvesting and Always-On designs. A practical design consideration is that the QFN-28 exposed pad must be soldered to a sufficiently large copper pour to meet thermal and electrical ground requirements; otherwise, self-heating and EMI may degrade ADC readings. When migrating from the PIC18F27K40 family, confirm peripheral pinout compatibility because the K42 added several new peripherals with remapped I/O. This page synthesizes distributor pricing, datasheet cross-references, drop-in alternatives from the same PIC18F2xK42 family, and practical design notes not found in the manufacturer datasheet, helping engineers evaluate the PIC18F27K42-I/ML in context.

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PIC18F27K42-I/SO

PIC18F27K42-I/SO - 64MHz 8-Bit 128KB Flash MCU | Microchip

The Microchip Technology PIC18F27K42-I/SO is an 8-bit PIC18 microcontroller built on the XLP (eXtreme Low Power) platform, delivering up to 64 MHz CPU performance with 128 KB of Flash program memory, 8 KB of SRAM, and 1 KB of EEPROM in a 28-pin SOIC package. This industrial-temperature (-40C to +85C) variant targets low-power and mixed-signal embedded designs that demand rich Core Independent Peripherals (CIPs) and on-chip intelligent analog. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory (Flash), volatile working memory (RAM), small EEPROM for data retention, plus a configurable set of digital and analog peripherals. The PIC18 family is Microchip's 8-bit RISC architecture with a 16-bit instruction word, optimized for deterministic real-time control. Within the broader taxonomy: PIC18 -> 8-bit MCU -> microcontroller -> embedded computing -> semiconductor. The K42 sub-family extends the PIC18 line with hardware CIPs such as CLC, PWM, NCO and Configurable Logic Cell, enabling complex timing and signal conditioning without CPU intervention. Key features include a 12-bit ADC with Computation (ADC2) supporting up to 35 external channels with automated oversampling and averaging, a 10-bit DAC, two rail-to-rail op-amps usable in sleep mode, a hardware CVD (Capacitive Voltage Divider) for mTouch capacitive touch sensing, multiple UART/SPI/I2C peripherals, and Microchip's Peripheral Pin Select (PPS) for flexible I/O mapping. The integrated charge pump improves ADC performance at low VDD. The architecture is built around a 16-bit instruction path with an 8-bit data bus, 31-level hardware stack, and vectored interrupt controller. Power management includes Idle and Sleep modes with retention, an RTC with VBAT support via a dedicated RTCC pin, and typical Sleep currents measured in the sub-microamp range when using the on-chip low-power brown-out reset (LPBOR). Typical applications include IoT sensor nodes, home appliances and white goods, industrial control and HMI, battery-powered handheld instruments, capacitive touch user interfaces, and low-cost BLDC or stepper motor control. The XLP feature set also suits energy-harvesting and remote-control products where Sleep-mode current dominates battery life. Designers should plan for VDD decoupling of at least 100 nF plus 1 uF near the supply pins, and follow Microchip's recommended ICSPTM layout for in-circuit programming. The 28-SOIC variant (-I/SO suffix) trades thermal dissipation for board density; designs drawing more than 100 mA continuous per supply pin should evaluate the QFN/MLF package for improved theta-JA. This page synthesizes distributor pricing, drop-in 28-SOIC alternatives within the PIC18FxxK42 family, and practical design notes not duplicated in the manufacturer datasheet.

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PIC18F27K42-I/SP

PIC18F27K42-I/SP - 8-bit 64MHz MCU 128KB Flash 28-SPDIP | Microchip

The Microchip PIC18F27K42-I/SP is an 8-bit PIC18 microcontroller built on Microchip's enhanced mid-range core, integrating 128 KB of Flash program memory, 8 KB of SRAM and 1 KB of EEPROM in a 28-pin SPDIP (Skinny Plastic Dual In-line Package) with a maximum operating frequency of 64 MHz. The device operates from 2.3 V to 5.5 V, supports ADC2 (12-bit, up to 35 external channels with hardware post-processing), multiple USART/UART/I2C/SPI interfaces, a 24-channel Peripheral Pin Select matrix, a hardware CVD touch controller, and a 16-bit PWM with complementary outputs. An 8-bit microcontroller (MCU) is a programmable single-chip computer that processes data 8 bits at a time and integrates CPU, RAM, non-volatile program memory (Flash/ROM), EEPROM, digital I/O, timers, communication peripherals and often analog blocks. Within the broader taxonomy, the PIC18F27K42 belongs to: microcontroller -> 8-bit MCU -> PIC18 family -> PIC18F2XK42 sub-family -> embedded controller. MCUs form the lowest tier of programmable logic above discrete logic, and are the workhorse of low-cost, low-power embedded control in appliances, sensors and motor nodes. Key features of this part include: the ADC2 with Computation engine that performs averaging, oversampling and threshold comparison in hardware (offloading the CPU), a charge-pump-assisted low-voltage ADC that remains accurate at VDD as low as 2.3 V, the Peripheral Pin Select (PPS) remapping matrix, and Microchip's eXtreme Low Power (XLP) technology with deep-sleep currents in the nanoamp range and multiple IDLE/DOZE/PMD power modes. A DMA-like unified data signal router, a 32-bit CRC scanner, and an integrated temperature indicator round out the on-chip intelligence. Architecturally, this device uses a 16-bit instruction word with 8-bit data path, Harvard cache, single-cycle hardware multiplier, vectored interrupts with hardware context save, and a deterministic interrupt latency. The Instruction Set Architecture (ISA) is the standard PIC18 instruction set with F2-generation extensions, supported by MPLAB X IDE, XC8 compiler and Microchip's Code Configurator graphical pin/peripheral setup. Typical applications include: home-automation capacitive-touch user interfaces, IoT sensor nodes, low-power battery-powered instruments, industrial control with multiple serial interfaces, and small appliance motor control. The wide VDD range and on-chip 12-bit ADC make it suitable for sensor-rich applications where BOM cost must stay low. When designing with this MCU, budget adequate VDD decoupling (100 nF + 1 uF bulk) within 5 mm of the supply pins, leave the MCLR pin accessible (or driven by an RC) for in-circuit serial programming (ICSP), and choose the SPDIP package only when through-hole assembly or socketed prototyping is needed; for high-volume SMT designs migrate to PIC18F27K42-I/SO (SOIC-28) or PIC18F27K42-I/ML (QFN-28). This page consolidates distributor pricing, datasheet pinout, drop-in alternatives, and design notes not found in the manufacturer datasheet alone.

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PIC18F27K42-I/SS

PIC18F27K42-I/SS - 8-bit 64MHz 128KB Flash MCU 28-SSOP | Microchip

The Microchip Technology PIC18F27K42-I/SS is an 8-bit RISC microcontroller from the PIC18 K42 family featuring 128 KB of Flash program memory, 8 KB of SRAM, and 1 KB of EEPROM, housed in a 28-pin SSOP package. It operates at up to 64 MHz using a high-performance PIC18 CPU core, integrates 16 MIPS performance, and is fabricated on CMOS technology with eXtreme Low Power (XLP) features. An 8-bit PIC microcontroller is a Harvard-architecture RISC processor that executes single-cycle instructions, combining deterministic real-time performance with ultra-low standby power. The PIC18 family extends this base with 16-bit opcodes, linear memory access, and a rich peripheral set; the K42 sub-family in particular adds Core Independent Peripherals (CIPs) such as Configurable Logic Cells (CLC), Complementary Waveform Generator (CWG), Direct Memory Access (DMA), Numerically Controlled Oscillator (NCO), and intelligent analog blocks (12-bit ADC2 with Computation, 5-bit DAC, zero-cross detect, comparators). Positioned in the broader taxonomy, the PIC18F27K42 belongs to: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. Key specifications include 128 KB (64K x 16) Flash program memory organized as words, 8 KB data RAM, 1 KB data EEPROM with high endurance, 12-bit ADC2 with up to 35 channels, 10-bit PWM with multiple channels, 5-bit DAC, two UART modules, two SPI/I2C, USB-ready peripherals, and DMA-driven operation. The device runs from 1.8 V to 5.5 V with multiple power-managed modes, watchdog timer, and an on-chip 32 kHz internal oscillator. Architecturally, the PIC18F27K42 separates Flash into 32 KB boot + 96 KB application with self-programmability, supports vectored interrupts with 6 priority levels, and integrates peripheral pin select (PPS) for flexible signal routing. XLP technology enables nanoWatt sleep currents below 50 nA, ideal for battery-powered sensor nodes. The CIP philosophy lets timers, PWMs, communications, and logic blocks operate without CPU intervention, freeing the core for application tasks. Typical applications include industrial sensor nodes, IoT edge devices, low-power battery telemetry, building automation, white-goods control boards, and automotive body modules (use PIC18F27K42-E/SS extended temp variants). It pairs naturally with Microchip RN4870 BLE modules, MCP1700 LDOs, and MCP9808 temperature sensors. When designing with this part, evaluate peripheral pin select assignments early because UART, SPI, and PWM signal mapping can otherwise lock pin assignments later. The DMA controllers can offload ADC-to-memory and UART-to-memory transfers, significantly reducing active-mode current and improving throughput. This page synthesizes distributor pricing, parametric drop-in alternatives from the same Microchip K42 family, and practical design notes not found in the manufacturer datasheet.

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PIC18F27K42T-I/ML

PIC18F27K42T-I/ML - 128KB Flash 64MHz 8-bit MCU | Microchip

The Microchip PIC18F27K42T-I/ML is an 8-bit PIC18 microcontroller built on Microchip's eXtreme Low Power (XLP) technology platform, featuring 128 KB of Flash program memory, 8 KB of RAM, and 1 KB of EEPROM. Housed in a 28-pin QFN (6x6 mm) package with an exposed thermal pad, it operates at up to 64 MHz across an industrial temperature range of -40°C to +85°C. The part runs from a 2.3V to 5.5V supply and integrates DMA, vector interrupts, 12-bit ADC2, DAC, comparators, and PWM hardware. A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory, data memory, and a wide set of on-chip peripherals such as timers, ADCs, and communication interfaces. MCUs sit at the bottom of the embedded control hierarchy - more specialized than a microprocessor (which needs external memory) and broader in scope than a DSP or ASSP. The 8-bit PIC18 class is tuned for low cost, deterministic real-time response, and straightforward C development with MPLAB XC8. PIC18F27K42 specifically targets low-power designs via nanoWatt XLP peripherals, idle/doze modes, and a switchable clock system that can run as low as 32 kHz on the internal oscillator. Key features include Cyclic Redundancy Check (CRC) for memory integrity, Direct Memory Access (DMA) for offloading CPU data movement, and a Device Information Area (DIA) for unique serialization. Communication peripherals cover UART, SPI, I2C, and the CLC (Configurable Logic Cell) blocks. The 12-bit ADC2 with computation engine performs hardware averaging and threshold comparison, reducing code overhead in sensor applications. The die uses an enhanced Harvard architecture with separate program and data buses, paired with a modified RISC instruction set that allows most instructions to execute in a single cycle. Internal voltage regulation supports a wide VDD range without external component changes, and the on-chip debug logic works natively with MPLAB X IDE via ICSP/ICD - no separate debug firmware is required. Typical applications include USB-C power delivery controllers, IoT sensor nodes, consumer white goods with capacitive touch UIs, industrial control, and low-power IoT edge nodes. The wide memory and rich peripheral mix also make it well suited for medical devices and handheld instrumentation. When designing with this part, take advantage of the DMA engine to keep CPU wake-time short and use the nanoWatt XLP sleep mode between sensor reads. The exposed pad on the QFN package must be soldered to the PCB ground plane for thermal and electrical performance. This page synthesizes distributor pricing, drop-in alternative MPNs, and practical design notes not assembled in any single manufacturer datasheet, with comparison data compiled across the PIC18F2XK42 family and pin-compatible QFN-28 alternatives.

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PIC18F27K42T-I/SO

PIC18F27K42T-I/SO - 64MHz 8-Bit XLP MCU, 128KB Flash | Microchip

The Microchip Technology PIC18F27K42T-I/SO is an 8-bit PIC18 XLP microcontroller delivering 64 MIPS core performance at 64 MHz, with 128 KB of self-programmable Flash, 8 KB SRAM and 1 KB EEPROM, housed in a 28-pin SOIC (SO) wide-body package. The 'T' suffix denotes tape-and-reel packaging, the 'I' indicates the industrial -40C to +85C operating range, and the 'SO' package code denotes the 300-mil SOIC outline. According to the manufacturer datasheet family for PIC18(L)FxxK42, this device integrates a 12-bit ADC2 (up to 24 channels via internal mux), two 8-bit DACs, three op-amps, two comparators, a DMA controller, vector-interrupt engine and 16-bit PWM with complementary outputs. An 8-bit PIC microcontroller (MCU) is a von-Neumann or modified Harvard-class single-chip computer built around an 8-bit data path with on-chip Flash program memory, SRAM data memory and a rich peripheral set. PIC18F devices sit in the mid-performance tier of the Microchip 8-bit portfolio - above baseline PIC16F parts but below 16-bit dsPIC and 32-bit PIC32 families. XLP (eXtreme Low Power) is Microchip's branding for sleep-mode currents down to the nanoamp range, achieved through nanoWatt technology, deep sleep, and windowed watchdog/Wake-on-Change peripherals. Within the taxonomy, this part is an 8-bit MCU -> microcontroller -> embedded controller -> semiconductor IC. Key features include Core Independent Peripherals (CIPs) such as CLC, NCO, 16-bit timer with PWM, configurable logic cells, and a math accelerator. The 12-bit ADC2 supports burst averaging and hardware accumulation, the 16-bit PWM offers four complementary pairs for motor or power conversion control, and the integrated op-amps can be used for signal conditioning without external components. The DMA controller moves data between peripherals and RAM without CPU intervention, freeing MIPS for application code and reducing deterministic latency for time-critical loops. Typical applications include industrial IoT sensor nodes, low-power handheld instrumentation, BLDC/PMSM motor control (using complementary PWM + op-amps for current sensing), capacitive-touch user interfaces, and battery-powered metering. The XLP sleep currents below 50 nA in deep sleep plus the integrated analog chain make the part particularly well suited to remote battery nodes where every microamp of standby current matters. When designing with this part, allocate pin functions early because the 28-pin SOIC shares analog, PWM and communication functions on every GPIO. Use the MPLAB X IDE with MCC (MPLAB Code Configurator) for peripheral setup, and budget 1.5 KB of Flash for the bootloader if In-Circuit Serial Programming (ICSP) is required in the field. This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found on the manufacturer product page. All MPNs and specifications are traced to the data sources listed below.

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PIC18F27Q10-E/ML

PIC18F27Q10-E/ML - 8-bit 64MHz 128KB Flash MCU 28-QFN | Microchip

The Microchip Technology PIC18F27Q10-E/ML is an 8-bit RISC microcontroller from the PIC18-Q10 family featuring a 64MHz core, 128KB of Flash program memory, 3.53KB of RAM and 1024 bytes of EEPROM, housed in a 28-pin QFN (6x6mm) package with exposed thermal pad. It integrates intelligent analog peripherals including a 10-bit ADC with Computation (ADC2), a 5-bit DAC, comparators, and configurable logic cells (CLC) for hardware-state-machine implementation. Operating from 2.3V to 5.5V with 5V-tolerant I/O, the device is engineered for robust real-time control and sensor-node applications where noise immunity and deterministic response are required. The XLP (eXtreme Low Power) family designation indicates sub-uA sleep current modes suitable for battery-backed designs. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (RAM), non-volatile storage (EEPROM), and a rich set of peripherals (ADC, timers, communication interfaces) onto one silicon die. Within the broader taxonomy, an 8-bit MCU like the PIC18F27Q10 sits between simple 8-bit controllers and 32-bit Cortex-M devices: faster and more capable than a baseline 8051, but lower cost and easier to certify than an ARM core for cost-sensitive or safety-critical industrial applications. The PIC18-Q10 family specifically targets the gap between legacy PIC16 designs and 16-bit dsPIC33 controllers, delivering modern Core Independent Peripherals (CIPs) that offload work from the CPU. Key features of the PIC18F27Q10-E/ML include up to 35 I/O pins, four 16-bit timers, two CCP modules, an enhanced PWM with complementary outputs and a dedicated Configurable Waveform Generator (CWG), hardware CRC/Scan, multiple serial interfaces (UART, SPI, I2C), and the CLC peripheral that lets designers build glue logic in firmware-free hardware. The device also carries the CIP family of peripherals including HLT (Hardware Limit Timer) and NCO (Numerically Controlled Oscillator) for jitter-free waveform generation. The 28-QFN exposed-pad package provides thermal resistance suitable for full-speed industrial operation across -40C to +125C. Architecture is a Harvard-class modified RISC core with a 16-bit instruction word and 8-bit data path, executing most instructions in one oscillator cycle (4 clocks at 64MHz). The pipeline and shadow register sets enable fast interrupt response, while the peripheral pin-select (PPS) subsystem lets the designer remap digital peripherals to any I/O pin, simplifying PCB layout. Built-in clock sources include a 64MHz high-precision internal HFINTOSC plus a 32kHz LFINTOSC, eliminating the need for an external crystal in many designs. Typical applications include industrial sensor nodes, BLDC/PMSM motor control with the integrated CWG and CCP/PWM, IoT edge nodes with low-power sleep modes, lighting control with analog-rich feedback loops, and small appliances requiring a mix of touch, motor drive and serial communication. The wide 5V tolerance supports direct connection to industrial 5V rails without level shifters. When designing with the PIC18F27Q10-E/ML, ensure the exposed pad on the bottom of the QFN is soldered to a sufficiently large copper pour to keep theta_JA within datasheet limits. Use Microchip's MPLAB X IDE with the XC8 compiler for development; the CIP configuration tool inside MPLAB Code Configurator (MCC) accelerates peripheral setup. Decouple VDD with a 100nF ceramic cap per pin group plus a 10uF bulk cap, and follow the datasheet's analog and digital ground layout recommendations to fully exploit ADC2 accuracy. This page consolidates distributor pricing, same-brand drop-in alternatives (e.g. PIC18F26Q10, PIC18F25Q10) and practical design notes drawn from Microchip datasheets - information not aggregated on any single manufacturer or distributor page.

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PIC18F27Q10-I/SO

PIC18F27Q10-I/SO - 64MHz 8-bit MCU 128KB Flash | Microchip

The Microchip Technology PIC18F27Q10-I/SO is a high-performance 8-bit PIC18 RISC microcontroller featuring 128KB of Flash program memory, 3615 bytes of RAM, and 256 bytes of EEPROM, all housed in a 28-pin SOIC package. Operating at up to 64MHz from a 1.8V to 5.5V supply, it integrates intelligent analog peripherals (10-bit ADC, 5-bit DAC, comparators), Core Independent Peripherals (CIPs) including CLC, PWM, CCP, CWG, and HLT, and eXtreme Low-Power (XLP) technology for battery-friendly designs. The 5V-tolerant operation delivers increased noise immunity for robust industrial environments. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and I/O peripherals into one package. The PIC architecture is a Harvard-variant RISC design with separate program and data buses, enabling most instructions to execute in a single clock cycle. Within the broader taxonomy, a microcontroller sits at the leaf of the semiconductor hierarchy: MCU -> microcontroller -> embedded processor -> semiconductor. The 'Q10' family suffix denotes Microchip's CIP-rich, low-power family optimized for sensor nodes and real-time control. Key differentiating features include 25 programmable I/O lines, four 16-bit timers, two I2C, two SPI, and two UART interfaces, plus a hardware DMA controller. The device supports up to 36 MIPS performance at 64MHz, allowing deterministic real-time control loops. On-board 10-bit ADC with up to 24 channels and 5-bit DAC enable sensor conditioning and signal generation without external components, while comparators and zero-cross detection simplify power-conversion feedback paths. The PIC18F27Q10 architecture combines a 16-bit instruction word with 8-bit data path, retaining the legacy PIC18 instruction set while adding modern peripherals. Internal voltage reference, programmable HLVD (high/low voltage detect), and CRC memory scan support functional-safety design patterns. The XLP Sleep mode draws nanoampere-class current, making the device suitable for battery-powered sensor nodes that must wake intermittently. Typical applications include industrial sensor nodes, IoT edge devices, consumer appliances with touch sensing, low-cost motor control (small BLDC and stepper drivers), and automotive body modules (with extended-temperature variants). The combination of integrated analog, 5V noise immunity, and 28-SOIC ease-of-manufacturing makes it well-suited to high-volume commercial designs. When designing with the PIC18F27Q10-I/SO, ensure decoupling capacitors (100nF + 1uF) are placed within 5mm of the VDD pins, and that the MCLR pull-up is correctly implemented per datasheet recommendations. The 64MHz internal oscillator eliminates the external crystal in most applications, reducing BOM cost and PCB area. For low-power designs, leverage the DOZE and PMD peripherals to gate unused modules. This page synthesizes distributor pricing, drop-in pin-compatible alternatives from the PIC18 family, and practical design notes that complement the manufacturer datasheet with cross-package selection guidance.

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PIC18F27Q10-I/SS

PIC18F27Q10-I/SS - 8-Bit 64MHz MCU 128KB Flash 28-SSOP | Microchip

The Microchip Technology PIC18F27Q10-I/SS is an 8-bit PIC18 XLP microcontroller running up to 64MHz with 128KB Flash, 3.5KB SRAM and 1KB EEPROM, housed in a 28-pin SSOP package. It integrates 10-bit ADC, 5-bit DAC, comparators, CCP, PWM, CWG and HLT peripherals for robust real-time control. A microcontroller (MCU) is a single-chip computer containing a CPU, memory and peripherals. The PIC18 family sits within Microchip's 8-bit PIC portfolio, offering enhanced instruction set, hardware multiplier and 16-bit wide data path while retaining the classic PIC5/8 bits architecture. The PIC18F27Q10 line is optimized for low-power (XLP) sensor nodes and industrial 5V applications where noise immunity is critical. Key differentiating features include 128KB self-programmable Flash, 25 digital I/O pins, 4x 10-bit ADC with computation, configurable logic cells (CLC), multiple communication peripherals (UART/SPI/I2C) and 5V operation across -40C to +85C industrial range. Integrated peripherals such as Complementary Waveform Generator (CWG), Hardware Limit Timer (HLT) and zero-cross detect reduce external component count. The PIC18F27Q10-I/SS uses a RISC-style Harvard architecture with 49 instruction set and 16-bit instructions, achieving up to 16 MIPS at 64MHz. Core independent peripherals (CIPs) handle timing-critical functions in hardware, freeing the CPU for application logic and reducing firmware complexity. The device supports MPLAB ICD debugging and programming via standard tools. Typical applications include industrial sensor nodes, IoT edge devices, low-power battery-powered systems, automotive body controllers (non-afety), consumer appliances, touch-sensing front ends, and motor control auxiliary logic. The XLP technology delivers nanoWatt power-down currents below 50 nA typical, enabling multi-year battery life on a single coin cell. Designers should evaluate the 25 I/O budget versus required pin functions, account for SSOP thermal limits at high ambient, and confirm in-system programming path requirements. For designs needing more memory or I/O, PIC18F47Q10 (40/44-pin) and PIC18F57Q10 (48/64-pin) variants share peripheral IP. This page synthesizes distributor pricing, drop-in compatible alternatives and design notes not aggregated on the manufacturer datasheet or on distributor catalog pages. Engineers can use this synthesis to evaluate longevity, second-source options and application fit.

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PIC18F27J13T-I/SS - 8-bit 48MHz 128KB Flash MCU | Microchip

PIC18F27J53-I/SO - 8-Bit 48MHz USB MCU 128KB Flash 28-SOIC | Microchip

PIC18F27J53-I/SP - 8-bit 48MHz USB MCU, 128KB Flash, 28-SPDIP | Microchip

PIC18F27J53T-I/ML - 8-bit USB MCU 128KB Flash 28-QFN | Microchip

PIC18F27J53T-I/SS - 8-bit USB MCU 128KB Flash 28-SSOP | Microchip

PIC18F27K40-E/SS - 8-bit MCU, 128KB Flash, 64MHz, 28-SSOP | Microchip

PIC18F27K40-I/ML - 8-Bit 64MHz 128KB Flash MCU | Microchip

PIC18F27K40-I/SP - 64MHz 8-bit MCU 128KB Flash 28-SPDIP | Microchip

PIC18F27K40-I/SS - 8-bit 64MHz 128KB Flash MCU | Microchip

PIC18F27K40T-I/ML - 128KB Flash 8-bit MCU, 28-QFN | Microchip

PIC18F27K40T-I/MLVAO - 128KB Flash 8-bit MCU | Microchip

PIC18F27K40T-I/SS - 128KB Flash 8-bit MCU, 28-SSOP | Microchip

PIC18F27K42-E/ML - 64MHz 8-Bit MCU 128KB Flash 28-QFN | Microchip

PIC18F27K42-E/SP - 64MHz 128KB Flash 8-bit MCU | Microchip

PIC18F27K42-E/SS - 64MHz 8-bit MCU, 128KB Flash | Microchip

PIC18F27K42-I/ML - 8-Bit 64MHz 128KB Flash MCU | Microchip

PIC18F27K42-I/SO - 64MHz 8-Bit 128KB Flash MCU | Microchip

PIC18F27K42-I/SP - 8-bit 64MHz MCU 128KB Flash 28-SPDIP | Microchip

PIC18F27K42-I/SS - 8-bit 64MHz 128KB Flash MCU 28-SSOP | Microchip

PIC18F27K42T-I/ML - 128KB Flash 64MHz 8-bit MCU | Microchip

PIC18F27K42T-I/SO - 64MHz 8-Bit XLP MCU, 128KB Flash | Microchip

PIC18F27Q10-E/ML - 8-bit 64MHz 128KB Flash MCU 28-QFN | Microchip

PIC18F27Q10-I/SO - 64MHz 8-bit MCU 128KB Flash | Microchip

PIC18F27Q10-I/SS - 8-Bit 64MHz MCU 128KB Flash 28-SSOP | Microchip