Microcontroladores

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PIC18F26Q84-E/SP - 8-Bit MCU, 64MHz, 64KB Flash, CAN FD | Microchip
PIC18F26Q84-E/SP

PIC18F26Q84-E/SP - 8-Bit MCU, 64MHz, 64KB Flash, CAN FD | Microchip

The Microchip Technology PIC18F26Q84-E/SP is an 8-bit PIC microcontroller from the PIC18-Q84 family operating at up to 64 MHz with 64 KB Flash program memory and 28-pin SPDIP package. The /SP suffix denotes the SPDIP (Skinny Plastic DIP) through-hole package, while -E denotes the extended operating temperature range of -40C to +125C for industrial applications. The device integrates an extensive array of Core Independent Peripherals (CIPs) alongside Controller Area Network Flexible Data Rate (CAN FD) connectivity, enabling deterministic real-time control without CPU intervention. Memory architecture includes 64 KB Flash, 4 KB RAM, and 1 KB EEPROM for non-volatile data storage. Communication peripherals include one CAN FD module, two UARTs, two SPI, and two I2C interfaces, supporting wired networking protocols including LIN, SMBus, and DALI. What is a PIC microcontroller? A PIC (Peripheral Interface Controller) is a family of 8-bit, 16-bit, and 32-bit microcontrollers manufactured by Microchip Technology, featuring a RISC architecture with Harvard bus design. PIC microcontrollers are widely used in embedded systems due to their low cost, low power consumption, and rich peripheral integration. Within the product taxonomy, the PIC18F26Q84 belongs to the broader category: microcontroller -> 8-bit MCU -> PIC18 family -> PIC18-Q84 sub-family -> CAN FD enabled CIPs. Key features of the PIC18F26Q84-E/SP include 25 ADC channels with 12-bit resolution, a 10-bit DAC, multiple 16-bit timers, capture/compare/PWM peripherals, and a high-endurance Flash program memory rated for 10K erase/write cycles. The CAN FD peripheral supports data rates up to 8 Mbps, while the device operates from 1.8V to 5.5V supply voltage with low-power sleep, idle, and dozing modes for battery-powered applications. The instruction set is backward-compatible with earlier PIC18 devices, easing migration from older designs. The architecture pairs a modified Harvard RISC CPU with deterministic interrupt handling and a hardware multiplier, executing most instructions in one clock cycle at 64 MHz (15.6 ns instruction cycle). On-chip CIPs handle tasks like signal generation, waveform measurement, and motor control without CPU loading, allowing the CPU to focus on system-level logic and communication stacks. The device also includes configurable logic cells and a math accelerator for offloading arithmetic operations. Typical applications include automotive body and comfort modules, industrial sensor hubs, building automation, CAN FD node endpoints, motor control, LED lighting controllers, and battery management systems. The wide operating voltage and temperature range also suit industrial-grade PLCs and outdoor equipment. When designing with this device, ensure that the CAN FD bit-rate configuration matches the bus network topology, and that appropriate bus termination (typically 120 ohm at each end) is provided. Use Microchip's MPLAB X IDE with the XC8 compiler for firmware development. For migration from earlier PIC18F26K-series devices, verify the peripheral pin select (PPS) mapping as additional pins are remappable on the Q84 family. This page synthesizes distributor pricing, drop-in SPDIP-28 alternatives, and practical design considerations for the PIC18-Q84 family that are not consolidated in any single manufacturer document.

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PIC18F26Q84-E/SS - 64MHz 8-bit MCU, 64KB Flash, CAN FD | Microchip
PIC18F26Q84-E/SS

PIC18F26Q84-E/SS - 64MHz 8-bit MCU, 64KB Flash, CAN FD | Microchip

The Microchip Technology PIC18F26Q84-E/SS is an 8-bit RISC microcontroller in the PIC18-Q84 family, providing 64KB of Flash program memory and 8KB of data RAM in a 28-pin SSOP package. It runs the high-performance PIC18 CPU core at up to 64MHz with 16 MIPS throughput, integrates CAN FD plus a rich set of Core Independent Peripherals (CIPs), and operates from 1.8V to 5.5V with XLP (eXtreme Low Power) technology for battery-friendly designs. The PIC18-Q84 family specifically combines an extensive array of CIPs with Controller Area Network Flexible Data Rate (CAN FD), targeting cost-optimized automotive and industrial embedded applications. An 8-bit microcontroller (MCU) is a self-contained computing subsystem built around an 8-bit data-bus CPU, Flash program memory, data SRAM, on-chip peripherals, and I/O. Within the broader semiconductor taxonomy, the PIC18F26Q84 sits in the hierarchy MCU -> 8-bit MCU -> PIC18 family -> PIC18-Q84 sub-family -> flash-based general-purpose controller. CIPs are hardware peripherals that execute specific tasks autonomously without CPU intervention, freeing the core to handle application logic - this is one of Microchip's core design philosophies for time-critical control loops. Key features include a 12-bit ADC with up to 24 channels, an 8-bit DAC, two UARTs, two SPI, two I2C, and a CAN FD controller, plus op amps, comparators, and Zero-Cross Detect (ZCD). The 28-SSOP package enables compact board designs while keeping I/O accessible, and the wide 1.8V-5.5V supply range with nanoWatt XLP sleep currents allows direct connection to single-cell Li-Ion, 3.3V, or 5V rails. The architecture uses a 16-bit instruction word with an 8-bit data path, giving a 2:1 code-density advantage over pure 8-bit cores and a Harvard memory layout for deterministic interrupt response. The 64MHz oscillator with 4x PLL enables instruction-cycle timing that is competitive with many 32-bit MCUs for digital control and protocol handling, while the CIP-driven analog peripherals (12-bit ADC, 8-bit DAC, op amps, comparators) handle sensor conditioning and feedback in hardware. Typical applications include automotive body and sensor networks using CAN FD, industrial sensor hubs, smart-metering endpoints, BLDC/PMSM motor control with integrated op amps, low-power IoT edge nodes, and lighting/HID ballast control. The combination of CAN FD and multiple CIPs allows these nodes to be added to a CAN bus with minimal firmware overhead. When designing with the PIC18F26Q84-E/SS, allocate one CIP to each major subsystem (e.g., one PWM + one op amp for a motor-current loop) to maximize offload from the CPU. Be aware that the -E/SS suffix denotes the -40C to +125C extended temperature range in the SSOP-28 package; for the industrial -40C to +85C range in the same footprint, use the PIC18F26Q84-I/SS variant. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC18F26Q84-I/SO - 8-Bit 64MHz MCU 64KB Flash CAN FD | Microchip
PIC18F26Q84-I/SO

PIC18F26Q84-I/SO - 8-Bit 64MHz MCU 64KB Flash CAN FD | Microchip

The Microchip Technology PIC18F26Q84-I/SO is a 28-pin SOIC 8-bit PIC microcontroller that operates up to 64 MHz with 64 KB of Flash program memory and integrates Controller Area Network Flexible Data Rate (CAN FD) peripherals. The PIC18-Q84 family is engineered for cost-optimized industrial and automotive applications that demand Core Independent Peripherals (CIPs), including Configurable Logic Cells (CLC), Analog-to-Digital Converter with Computation (ADCC), and high-resolution PWM. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, data memory, and peripherals around an 8-bit data bus. Within the broader semiconductor taxonomy, the PIC18F26Q84 sits in the PIC18 family of Microchip's 8-bit MCU portfolio, which is positioned between the 16-bit PIC24/dsPIC families and the cost-optimized baseline PIC10/12/16 families. The -I/SO industrial suffix denotes -40C to +85C operating temperature and a SOIC-28 wide-body package. Key features include 64 KB self-programmable Flash, 4 KB SRAM, 256 bytes EEPROM, a 12-bit ADCC with up to 35 analog channels, two UART, two SPI, two I2C, one CAN FD module, and high-resolution 16-bit PWM with fine resolution down to 250 ps via the NCO peripheral. The 64 MHz internal oscillator eliminates external crystal cost while maintaining USB-accurate timing via auxiliary PLL. CIPs (Core Independent Peripherals) such as the CLC, CCP, PWM, NCO, and CRC/SCAN enable hardware-driven state machines that offload the CPU. The 28-pin SOIC package offers 25 digital I/O pins, each with interrupt-on-change and weak pull-up, and supports ICSP (In-Circuit Serial Programming) plus ICD (In-Circuit Debugger) via the standard PGC/PGD pins. The wide operating voltage of 1.8V to 5.5V covers single-cell Li-ion and 5V industrial rails, and eXtreme Low Power (XLP) sleep modes reduce quiescent current below 100 nA for battery-powered sensor nodes. Typical applications include automotive body and comfort modules, CAN FD sensor nodes, industrial control with brushless DC motor drives, building automation, smart energy metering, and USB-to-CAN bridges. The combination of CAN FD with USB and high-resolution PWM is unusual at this price point and addresses compact automotive gateway designs. A key design tip is to allocate the CAN FD peripheral to pins RB2/RB3 via PPS (Peripheral Pin Select) and reserve the DMA controller for ADCC-to-memory transfers to free the CPU for protocol stack execution. Use the high-resolution PWM with NCO for fine-grained current control in switching power supplies. This page consolidates distributor pricing, drop-in alternatives, and design considerations not packaged in the manufacturer datasheet. Specifications verified against Microchip PIC18F26/46/56Q84 datasheet DS40002259C, fetched 2026-09-27.

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PIC18F26Q84-I/SP - 8-bit MCU 64MHz 64KB Flash CAN FD | Microchip
PIC18F26Q84-I/SP

PIC18F26Q84-I/SP - 8-bit MCU 64MHz 64KB Flash CAN FD | Microchip

The Microchip Technology PIC18F26Q84-I/SP is an 8-bit microcontroller from the PIC18-Q84 family, featuring a 64 MHz CPU, 64 KB of Flash program memory, 4 KB of RAM, and 1 KB of EEPROM, housed in a 28-pin SPDIP (SP) through-hole package. It integrates Controller Area Network Flexible Data Rate (CAN FD) along with an extensive suite of Core Independent Peripherals (CIPs) that offload tasks from the CPU for deterministic real-time control. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data bus CPU, on-chip program memory (Flash), data memory (RAM), and a configurable set of peripherals. MCUs sit inside the broader hierarchy of embedded computing devices: microcontroller -> embedded processor -> semiconductor IC. The PIC18 architecture is Microchip's high-end 8-bit family, offering enhanced instruction set, larger memory maps and richer peripherals than the PIC16 family, while remaining easier to program and debug than 32-bit ARM Cortex-M parts. Key features of the PIC18F26Q84-I/SP include operation from 1.8 V to 5.5 V, 25 digital I/O pins, hardware CAN FD controller, multiple UART/SPI/I2C interfaces, 12-bit ADC with computation, configurable logic cells (CLC), Complementary Waveform Generator (CWG), and zero-cross detect. The 64 KB self-programmable Flash supports in-application programming, while the 1 KB EEPROM provides non-volatile data storage. The integrated 32 MHz high-speed oscillator and 64 MHz PLL deliver 16 MIPS performance at 64 MHz. The architecture combines a RISC-style Harvard CPU with CIP blocks such as CLC, PWM, signal measurement timers, and CWG that interconnect via a programmable fabric, allowing hardware-level state machines without CPU intervention. This reduces firmware complexity and improves timing determinism for motor control, power conversion, and sensor signal chains. Typical applications include automotive body and sensor networks (CAN FD nodes), industrial sensor hubs, building automation, lighting controllers, smart agriculture nodes, and small appliance motor control. Wide voltage range (1.8 V to 5.5 V) and CAN FD make it especially suitable for distributed industrial networks. Design consideration: ensure CAN bus termination (120 ohm at each end), TVS protection, and proper dominant/recessive recessive bit timing. The 28-SPDIP footprint eases prototype rework and breadboarding, but for volume production migrate to the SOIC or SSOP variants of the same die. This page synthesizes distributor pricing, drop-in alternatives, design notes, and application guidance not found in the manufacturer datasheet alone, optimizing it for engineering decision-making and AI-cited knowledge retrieval.

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PIC18F26Q84T-I/SO - 64KB Flash 8-bit MCU CAN-FD 28-SOIC | Microchip
PIC18F26Q84T-I/SO

PIC18F26Q84T-I/SO - 64KB Flash 8-bit MCU CAN-FD 28-SOIC | Microchip

The Microchip Technology PIC18F26Q84T-I/SO is an 8-bit PIC microcontroller from the PIC18-Q84 family, combining Core Independent Peripherals (CIPs) with a Controller Area Network Flexible Data Rate (CAN FD) interface. It integrates 64KB of Flash program memory and 8KB of SRAM, operates up to 64 MHz, and is housed in a 28-pin SOIC package. The extended -40C to +85C industrial temperature range suits it to harsh embedded environments. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), working memory (RAM), and a rich set of peripheral interfaces (ADC, timers, communication controllers) on one die. Within the product taxonomy, an MCU sits under microprocessor ICs -> microcontrollers -> 8-bit microcontrollers -> Flash microcontrollers. The PIC18-Q84 family specifically targets cost-optimized real-time control and CAN-FD-connected nodes where determinism and reduced firmware burden matter more than raw CPU throughput. Key features include a 12-bit ADC with computation (ADC2), a 5-bit DAC, multiple Core Independent Peripherals such as CWG, CCP, PWM, UTMR, HLT, and a windowed watchdog (WWDT), plus a CAN FD controller. The 8-bit PIC18 core delivers deterministic interrupt latency and a Harvard bus architecture. The 28-SOIC package provides an easy-to-handle surface-mount footprint with 25 usable I/O pins. Typical applications include automotive body and sensor networks, industrial CAN-FD nodes, building automation gateways, HVAC controllers, and sensor fusion front-ends. The built-in CAN FD peripheral removes the need for an external transceiver-side MCU on small sub-nodes, while the 12-bit ADC and op-amp peripherals simplify analog front-end designs. When designing with this device, allocate sufficient headroom for the CAN-FD message buffers in RAM and confirm the PCB layout meets IEC 61000-4-2 ESD guidelines for automotive/industrial CAN bus protection. Programming is supported by MPLAB X IDE and the MPLAB Code Configurator (MCC).

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PIC18F27J13-I/ML - 128KB Flash 8-bit MCU | Microchip QFN-28
PIC18F27J13-I/ML

PIC18F27J13-I/ML - 128KB Flash 8-bit MCU | Microchip QFN-28

The Microchip Technology PIC18F27J13-I/ML is an 8-bit PIC18J-series microcontroller with 128KB of Flash program memory, 4KB of RAM, and a maximum clock speed of 48 MHz (12 MIPS), housed in a 28-pin QFN package (6x6 mm). It belongs to the PIC18F47J13 family and integrates nanoWatt XLP ultra-low-power technology for energy-sensitive designs. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, and peripherals such as ADC, timers, and communication interfaces. Within the broader semiconductor hierarchy, an MCU sits under microcontrollers, which themselves fall under integrated circuits and ultimately semiconductors. The PIC18F27J13 uses a RISC-based Harvard architecture, executing most instructions in a single cycle to deliver deterministic real-time control at low power. Key features include 128KB Flash (64K x 16), 4KB RAM, an integrated 12-bit ADC with up to 13 channels, and the deep-sleep nanoWatt XLP mode that draws only nanoamp-level standby current. The device supports an operating voltage range from 2.15 V to 3.6 V (FindMyChip) and an extended 4.2 V to 5.5 V range (Chipdig listing) depending on configuration, and operates across an industrial temperature range of -40C to +85C. The QFN-28 package with 25 I/O pins supports compact PCB layouts where board area is critical. The PIC18F27J13 uses a 16-bit wide instruction set with an 8-bit data path, optimizing code density while retaining the simplicity of an 8-bit core. It includes a 4x PLL for high-speed operation from low-frequency crystals and integrated peripherals such as UART, SPI, I2C, comparators, and PWM modules. This combination makes it well suited to mixed-signal embedded applications where both digital control and analog acquisition are required. Typical applications include consumer electronics, industrial sensor nodes, portable medical devices, low-power IoT endpoints, and human-machine interface (HMI) controllers. The 12 MIPS throughput and 128KB code space support graphical UI libraries and protocol stacks, while XLP technology extends battery life in always-on products. When designing with this device, ensure proper decoupling (100 nF + bulk) near VDD pins and follow QFN-28 thermal pad soldering guidelines to maximize heat dissipation and mechanical reliability. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single-source reference for evaluating the PIC18F27J13-I/ML.

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PIC18F27J13-I/SP - 8-bit MCU, 128KB Flash, 48MHz, 28-SPDIP | Microchip
PIC18F27J13-I/SP

PIC18F27J13-I/SP - 8-bit MCU, 128KB Flash, 48MHz, 28-SPDIP | Microchip

The Microchip PIC18F27J13-I/SP is a high-performance, low-power 8-bit CMOS Flash microcontroller built on the enhanced PIC18 J-series architecture, packaged in an industrial-temperature 28-pin SPDIP (0.300 inch, 7.62mm). It delivers 12 MIPS throughput at 48 MHz internal clock, integrates 128 KB of self-programmable Flash program memory, 3,839 bytes of data RAM, and supports up to 16 MIPS peak processing, making it suitable for cost-sensitive embedded control designs requiring a substantial code footprint and peripheral set. An 8-bit MCU (microcontroller unit) is a single-chip computer that integrates a CPU core, non-volatile program memory, RAM, and programmable peripherals on one die. The PIC18 family uses a RISC Harvard-architecture core with a single-cycle instruction pipeline and an 8-bit data path, while maintaining a 16-bit wide instruction word for compact, deterministic code. Within the broader hierarchy, PIC18F parts sit between the lower-pin PIC16F baseline family and the more capable PIC24F/dSPIC33F 16-bit families, targeting general-purpose applications that need more code space and analog peripherals than PIC16F delivers but do not require a 16-bit MCU. Key features include nanoWatt XLP technology with Deep Sleep mode (down to tens of nA typical), an integrated 12-channel 10-bit ADC, multiple Enhanced USART, I2C, and SPI interfaces, up to 25 digital I/O pins, five 16-bit timers/counters plus two analog comparators, and a 10-bit PWM with up to five channels. The device operates from 2.0V to 3.6V core VDD with a 4.2V to 5.5V analog/digital rail when using the internal LDO regulator configuration typical of J-series parts. Typical applications span industrial control panels, home appliances, sensor hubs, IoT edge nodes, low-power remote controls, and battery-powered instrumentation. The combination of generous Flash, true digital I/O, and nanoWatt XLP battery-friendly operation makes it attractive for mains-powered appliances as well as coin-cell sensor nodes. When designing with this device, ensure the MCLR reset and ICSP programming signal traces are correctly routed and the decoupling network follows the manufacturer reference layout. ICSP pins must be brought out to a header or test pad for in-circuit debug and firmware updates, even on the through-hole SPDIP variant. This page synthesizes distributor pricing, parametric drop-in alternatives from the PIC18 family, and practical design notes not found in the manufacturer datasheet.

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PIC18F27J13-I/SS - 8-bit 48MHz 128KB Flash XLP MCU 28-SSOP | Microchip
PIC18F27J13-I/SS

PIC18F27J13-I/SS - 8-bit 48MHz 128KB Flash XLP MCU 28-SSOP | Microchip

The Microchip Technology PIC18F27J13-I/SS is an 8-bit PIC18 J-series microcontroller delivering 48 MHz (12 MIPS) CPU performance with 128 KB Flash, 4 KB RAM and integrated 12-bit ADC in a 28-pin SSOP package. It operates from 2.0 V to 3.6 V (with 5.5 V tolerant I/O) and features nanoWatt XLP eXtreme Low-Power technology with deep-sleep mode for battery-powered designs. The part is qualified for the industrial -40C to +85C range (I-grade). An 8-bit microcontroller (MCU) is a compact computer-on-a-chip containing a CPU, program memory (Flash/ROM), data memory (RAM), and integrated peripherals such as ADCs, timers, communication interfaces, and I/O ports. PIC18 J-series devices sit in the PIC microcontroller family hierarchy as PIC -> PIC18 -> PIC18 J-series, designed for cost-sensitive applications that need higher memory density and peripheral flexibility than baseline PIC16 parts. The J-series is distinguished from K-series parts by its 2.0-3.6 V core supply and 5.5 V tolerant I/O, making it ideal for mixed-voltage systems. Key features include 128 KB (64K x 16) Flash program memory, 4 KB RAM, 12-bit A/D converter with up to 10 channels, two comparators, two CCP/ECCP modules, four 8/16-bit timers, hardware RTCC, two MSSP (SPI/I2C) ports, two enhanced USART modules, and a 10-bit DAC reference output. The deep-sleep mode current is in the hundreds of nanoamperes, while run-current is roughly a few mA per MHz, enabling years of battery life on coin cells. The PIC18F27J13-I/SS uses a modified Harvard RISC architecture with a 16-bit instruction word and 8-bit data path. Code is executed from Flash via a 2-stage pipeline that lets the next instruction pre-load while the current one executes, supporting the 12 MIPS throughput at 48 MHz. Peripherals are memory-mapped through SFRs and configured via PPS (Peripheral Pin Select) for flexible pin assignment. Typical applications include portable medical devices, low-power wireless sensor nodes, USB HID peripherals (with the PIC18 USB J-series siblings), consumer appliances, smart meters, and industrial control boards. The wide memory and deep-sleep capability suit applications that wake occasionally to log or transmit data. When designing with this device, ensure the core VDD stays within 2.0 V to 3.6 V while the I/O pins can be pulled up to 5.5 V for mixed-voltage buses. Decouple VDD/VSS with 100 nF ceramic caps close to each pin pair, and configure unused I/O as outputs to minimize sleep current. Use the PPS system to remap peripherals to alternate pins if board layout constraints change. This page synthesizes distributor pricing, drop-in same-package alternatives, and engineering design notes not found in the manufacturer datasheet alone, giving procurement and design engineers a single reference for sourcing and implementing the PIC18F27J13-I/SS.

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PIC18F27J13T-I/ML - 8-Bit 48MHz 128KB Flash MCU | Microchip
PIC18F27J13T-I/ML

PIC18F27J13T-I/ML - 8-Bit 48MHz 128KB Flash MCU | Microchip

The Microchip PIC18F27J13T-I/ML is an 8-bit PIC microcontroller in the PIC18 J-series family, delivering 48 MIPS performance at 48 MHz with 128 KB of Flash program memory, packaged in a 28-pin QFN (6x6 mm) surface-mount form factor. The T-suffix denotes Tape-and-Reel packaging and the ML suffix indicates the QFN package; the operating temperature grade is industrial -40C to +85C. The '27' prefix means 28 pins, the 'F' indicates Flash memory, and 'J13' places the device in the nanoWatt XLP low-power J-series. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and programmable I/O peripherals. The PIC18 family uses an enhanced 8-bit RISC Harvard architecture with 16-bit-wide instructions, enabling most instructions to execute in a single cycle. PIC MCUs target cost-sensitive embedded applications where deterministic real-time response, low power consumption, and ease of development matter more than raw computational throughput, and they sit in the broader category of 8-bit microcontrollers alongside 8051 and AVR devices. Key features of this device include 128 KB self-programmable Flash, 3.8 KB RAM, 8-channel 10-bit ADC, two USART modules, two SPI and two I2C peripherals, and up to 22 digital I/O pins. Microchip's nanoWatt XLP technology adds a deep-sleep mode drawing nanoamp-level current, making the device well suited to battery-powered designs. The integrated RTCC and CTMU peripherals reduce external component count for touch and timing applications. Architecture-wise the PIC18F27J13 uses an internal PLL to derive a 48 MHz system clock from a wide range of external crystals or internal oscillator sources. The 28-pin QFN package leaves I/O count intentionally limited but offers an exceptionally small 6x6 mm footprint with an exposed thermal pad, while keeping all analog and digital peripherals accessible from the remaining GPIO. Typical applications include consumer electronics control boards, low-power IoT sensor nodes, battery-powered handheld instruments, USB peripherals with on-chip transceivers, home automation gateways, and educational/development boards. Designers often choose this MCU when they need more Flash than the PIC18F25 series but fewer pins than the 44-pin PIC18F46 variants, with nanoWatt XLP enabling years of operation from a coin cell. For new designs, verify the latest silicon revision in the datasheet before commit because the PIC18F27J13 family has multiple silicon revs. Ensure decoupling capacitors are placed as close as possible to VDD/VDDCORE pins and that the QFN thermal pad is soldered to a properly sized ground copper pour for thermal dissipation. This page synthesizes distributor pricing, drop-in cross references, and practical design notes that go beyond what appears in any single manufacturer document, giving engineers and procurement teams a single source for technical and commercial decisions about this MCU.

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PIC18F27J13T-I/SS - 8-bit 48MHz 128KB Flash MCU | Microchip
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 - 8-Bit 48MHz USB MCU 128KB Flash 28-SOIC | Microchip
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 - 8-bit 48MHz USB MCU, 128KB Flash, 28-SPDIP | Microchip
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 - 8-bit USB MCU 128KB Flash 28-QFN | Microchip
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 - 8-bit USB MCU 128KB Flash 28-SSOP | Microchip
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 - 8-bit MCU, 128KB Flash, 64MHz, 28-SSOP | Microchip
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 - 8-Bit 64MHz 128KB Flash MCU | Microchip
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 - 64MHz 8-bit MCU 128KB Flash 28-SPDIP | Microchip
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 - 8-bit 64MHz 128KB Flash MCU | Microchip
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 - 128KB Flash 8-bit MCU, 28-QFN | Microchip
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 - 128KB Flash 8-bit MCU | Microchip
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 - 128KB Flash 8-bit MCU, 28-SSOP | Microchip
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 - 64MHz 8-Bit MCU 128KB Flash 28-QFN | Microchip
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 - 64MHz 128KB Flash 8-bit MCU | Microchip
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 - 64MHz 8-bit MCU, 128KB Flash | Microchip
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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