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產品（39,000+)

PIC18LF46K40-E/P - 8-Bit 64MHz 64KB Flash MCU | Microchip
PIC18LF46K40-E/P

PIC18LF46K40-E/P - 8-Bit 64MHz 64KB Flash MCU | Microchip

The Microchip Technology PIC18LF46K40-E/P is an 8-bit PIC18 microcontroller featuring a 64 MHz CPU, 64 KB of Flash program memory, 4 KB of SRAM, and 256 B of EEPROM, packaged in a 40-pin PDIP through-hole format. It belongs to Microchip's PIC18 "K40" family and integrates XLP (eXtreme Low Power) technology, Core Independent Peripherals (CIPs), and a 10-bit ADC with Computation (ADCC) that automates Capacitive Voltage Divider (CVD) for advanced touch sensing. A microcontroller (MCU) is a single-chip computer containing a CPU, memory, and programmable peripherals, used to control embedded systems. Within the broader taxonomy, an 8-bit MCU occupies the entry-level performance tier, balancing cost-effectiveness with deterministic real-time control. The PIC18 family specifically targets applications requiring higher memory and richer analog integration than baseline PIC16 devices. Key features of this device include a 10-bit ADCC with up to 35 channels, a 5-bit DAC, two comparators, a 10-bit PWM, CCP, CWG (Complementary Waveform Generator), WWDT (Windowed Watchdog Timer), SCAN/CRC, Zero-Cross Detect (ZCD), Peripheral Pin Select (PPS), and EUSART plus SPI/I2C communication. The "LF" prefix denotes the 1.8V-3.6V low-voltage variant designed for battery-powered applications. Architecturally, the PIC18LF46K40 employs a modified Harvard RISC core with a hardware multiplier, 49 instruction set extensions, and an interrupt controller with hardware context save. The XLP technology delivers sub-uA sleep currents, enabling years of operation from coin-cell batteries. The device also supports on-chip debugging via ICSP and ICD. Typical applications include consumer electronics, IoT sensor nodes, home appliances, capacitive touch user interfaces, battery-powered instrumentation, automotive body electronics, industrial control modules, and low-power remote controls. The wide operating temperature range suits both indoor and harsh-environment deployments. Designers should note the 40-pin PDIP footprint enables easy breadboarding and through-hole prototyping, while the same silicon die is available in TQFP-44 and QFN packages for space-constrained production designs. The 1.8V minimum Vdd allows direct connection to single-cell lithium or two-AA battery stacks. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on a single manufacturer page, providing engineers with a single reference for sourcing, comparing, and selecting compatible microcontrollers.

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PIC18LF46K40-E/PT - 8-bit 64MHz MCU 64KB Flash | Microchip
PIC18LF46K40-E/PT

PIC18LF46K40-E/PT - 8-bit 64MHz MCU 64KB Flash | Microchip

The Microchip PIC18LF46K40-E/PT is a low-power 8-bit PIC18 microcontroller from the XLP (eXtreme Low Power) family, delivering 64 MIPS performance at 64 MHz with 64 KB Flash, 3728 bytes RAM, and 1024 bytes EEPROM in a 44-pin TQFP (PT) package. The integrated rich peripheral set includes a 10-bit ADC with Computation (ADC2), 5-bit DAC, comparators, CCP/PWM, Complementary Waveform Generator (CWG), Hardware Limit Timer (HLT), Windowed Watchdog Timer (WWDT), Memory Scan/CRC, Zero-Cross Detect (ZCD), and Peripheral Pin Select (PPS). An 8-bit microcontroller is a single-chip computer built around an 8-bit data path, ALU and register file. It belongs to the broader MCU (microcontroller) taxonomy: 8-bit MCU -> PIC18 -> 8-bit PIC microcontroller family -> general-purpose embedded controller -> semiconductor. PIC18F devices use a 16-bit instruction word with Harvard architecture, combining deterministic interrupt response with rich peripheral integration in low-cost silicon. The PIC18LF46K40E/PT operates from 1.8 V to 3.6 V (the F-variant operates up to 5.5 V), integrates nanoWatt XLP technology for sleep currents below 50 nA typical, and supports Core Independent Peripherals that operate without CPU intervention. The integrated Peripheral Pin Select (PPS) gives designers flexible I/O mapping to reduce PCB layout constraints. Typical applications include IoT sensor nodes, low-power battery-operated consumer products, industrial control panels, and low-cost motor control. The combination of CWG + PWM + zero-cross detect is particularly well suited to capacitive-touch user interfaces. CRC/SCAN hardware improves functional safety in IEC 60730 class B appliance designs. When designing with this part, budget Vdd decoupling (100 nF + 1 µF) close to all supply pins and respect in-circuit serial programming (ICSP) pin requirements. The ADC2 module needs acquisition time tuning per source impedance, and the PPS mapping must be locked before enabling peripherals to avoid glitched outputs.

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PIC18LF46K40-I/MV - 8-bit 64MHz 64KB Flash MCU 40-UQFN | Microchip
PIC18LF46K40-I/MV

PIC18LF46K40-I/MV - 8-bit 64MHz 64KB Flash MCU 40-UQFN | Microchip

The Microchip Technology PIC18LF46K40-I/MV is an 8-bit PIC microcontroller from the PIC18 XLP family with 64 KB Flash, 3728 bytes RAM, 1024 bytes EEPROM, and a 64 MHz core, housed in a 40-pin 5x5 mm UQFN (MV) package. The "LF" prefix denotes the low-voltage variant operating from 1.8 V to 3.6 V, while the "F" sibling PIC18F46K40 operates up to 5.5 V. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data bus that fetches, decodes, and executes instructions from on-chip program memory. The PIC18LF46K40 belongs to the broader category of microcontroller -> embedded controller -> semiconductor IC, and within Microchip's portfolio it sits in the PIC18 advanced-performance family that combines C-compiler friendly architecture with rich on-chip peripherals. XLP (eXtreme Low Power) technology extends battery life through nanoWatt sleep modes that drop quiescent current below 100 nA in deep sleep. Key features include a 10-bit ADC with Computation (ADCC) supporting automated Capacitive Voltage Divider (CVD) touch sensing, a 5-bit DAC, multiple Core Independent Peripherals (CIPs) such as Complementary Waveform Generator (CWG), Windowed Watchdog Timer (WWDT), CRC/SCAN, Zero-Cross Detect (ZCD), and Hardware Limit Timer (HLT). The device also integrates EUSART, I2C, SPI, CCP, and PWM peripherals, and supports 10-bit PWM with up to 35 mA per I/O source/sink capability. The architecture uses a 16-bit instruction word with an 8-bit data path, an 8-deep hardware stack, and a Harvard bus topology. The instruction pipeline is two stages, and the core delivers up to 16 MIPS at 64 MHz. CIPs offload timing-critical tasks from the CPU, leaving the core free for application logic and reducing firmware complexity. Typical applications include low-power IoT sensor nodes, capacitive touch human-machine interfaces (HMIs), battery-powered consumer electronics, motor-control signal generators using the CWG, and home appliances. The wide peripheral set lets a single chip replace external ADCs, op-amps, and timers. When designing with this part, remember that the UQFN-40 package requires careful PCB land-pattern design and thermal vias under the exposed pad to dissipate ~1 W typical dissipation. The MV suffix indicates the UQFN package; the same silicon is also offered in 40-pin PDIP (P) and 44-pin TQFP (PT) for breadboard-friendly or higher-power designs. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not aggregated on any single distributor or manufacturer page.

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PIC18LF46K40-I/PT - 8-bit 64MHz 64KB Flash MCU | Microchip
PIC18LF46K40-I/PT

PIC18LF46K40-I/PT - 8-bit 64MHz 64KB Flash MCU | Microchip

The Microchip PIC18LF46K40-I/PT is an 8-bit PIC microcontroller from the PIC18 XLP family, delivering 64 MHz CPU performance with 64 KB Flash, 3728 bytes RAM, and 1024 bytes EEPROM in a 44-pin TQFP (10x10 mm) package. The LF variant operates over a 1.8V to 3.6V supply range, making it suited to battery-powered and energy-harvesting applications where extended run-time is required. The integrated Core Independent Peripherals (CIPs) include CWG, WWDT, CRC/SCAN, ZCD, 10-bit ADC2 with Computation, 5-bit DAC, comparators, CCP, 16-bit PWM, and HLT, enabling designers to offload tasks from the CPU and reduce firmware complexity. What is an 8-bit PIC microcontroller? An 8-bit microcontroller is a single-chip computer with an 8-bit data path that executes instructions on one byte at a time. The PIC18 architecture from Microchip is a RISC (Reduced Instruction Set Computer) family that combines ease of programming, deterministic timing, and rich on-chip peripherals. Within the broader semiconductor hierarchy, microcontrollers sit alongside microprocessors as the building blocks of embedded systems; the PIC18 LF sub-family emphasizes eXtreme Low Power (XLP) operation, ideal for always-on IoT endpoints, sensor hubs, and portable medical devices where battery life dominates the BOM. Key features include 36 digital I/O lines, 9 timers, 2 CCP modules, a 35-channel 10-bit ADC, multiple communication interfaces (I2C, SPI, UART with LIN support), and nanoWatt XLP technology with idle currents in the nanoampere range. The device supports both internal and external oscillator modes, in-circuit debugging via ICD, and operation across -40C to +85C industrial temperature range. Hardware CRC/SCAN and Windowed Watchdog Timer (WWDT) provide functional safety primitives for IEC 60730-class white-goods and consumer safety applications. From an architectural standpoint, the PIC18LF46K40 uses a 16-bit instruction word with an 8-bit data path, allowing a 64 KB program memory address space with single-cycle Flash access at 64 MHz. The Core Independent Peripherals can chain deterministically (e.g., ADC-triggered PWM via CWG), removing jitter from software-driven loops. This is particularly valuable for motor control and power conversion, where timing jitter translates to audible noise or EMI. Typical applications include low-power IoT sensor nodes, home appliances with touch and motor control, battery-powered medical monitors, industrial sensor hubs, and automotive body electronics (non-safety). Designers leverage the XLP sleep modes, peripheral pin select, and zero-cross detect to reduce BOM cost by eliminating external analog components. This PIC18LF46K40 variant targets designs that need the 44-pin TQFP footprint for roomy PCB layouts or for upgrade compatibility with larger pin-count PIC18LF45K40 designs. For optimal results, follow the Microchip MPLAB X IDE configuration bits and use the MPLAB Code Configurator (MCC) to scaffold peripheral initialization. When migrating from PIC18LF45K40, verify that CCP and PWM mapping remain consistent with your PCB layout. Designers should always consult the Microchip PIC18(L)F26/45/46K40 datasheet for absolute maximum ratings and DC characteristics specific to the LF low-voltage variant. This page synthesizes verified distributor pricing, same-family drop-in alternatives, and practical design notes beyond what is found in the manufacturer datasheet.

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PIC18LF46K42-E/ML - 8-bit 64MHz 64KB Flash XLP MCU 44-QFN
PIC18LF46K42-E/ML

PIC18LF46K42-E/ML - 8-bit 64MHz 64KB Flash XLP MCU 44-QFN

The Microchip Technology PIC18LF46K42-E/ML is an 8-bit PIC18 RISC microcontroller with 64 MHz maximum clock, 64 KB Flash, 4 KB RAM and 1024 bytes of data EEPROM, housed in a 44-pin QFN (8x8 mm) package with exposed pad. The 'LF' prefix indicates the low-power (1.8V-3.6V) core variant built on Microchip's eXtreme Low Power (XLP) technology platform. The -E suffix designates the extended (-40C to +125C) operating temperature grade. 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 such as timers, ADC, communication interfaces and I/O. Within the embedded hierarchy, the PIC18 family sits above PIC16 and below PIC32 in Microchip's 8-bit/16-bit/32-bit taxonomy, targeting mainstream low-power applications where deterministic interrupt response and ultra-low standby current matter more than raw compute throughput. The PIC18LF46K42 differentiates itself through a 12-bit ADC with Computation (ADC2) supporting up to 140 ksps and 35 external channels, hardware Capacitive Voltage Divider (CVD) for touch sensing, a Vectored Interrupt Controller with fixed latency, and DMA. Five 16-bit timers, multiple PWM modules, I2C/SPI/UART with LIN, and a 5-bit DAC complete the peripheral set. The 44-QFN package exposes 36 general-purpose I/O pins. The PIC18LF46K42 is widely deployed in low-power consumer products, industrial sensor nodes, capacitive touch user interfaces, battery-powered instrumentation, and automotive body/comfort modules where XLP nanoWatt sleep modes extend battery life into the multi-year range. On-chip Core Independent Peripherals (CIPs) like CWG, NCO and SMT allow complex functions without waking the CPU. When designing with this MCU, pay attention to the Vdd/Vss decoupling network - place 100 nF ceramics on every supply pin and a bulk 10 uF near the exposed pad - and tie unused I/O to defined logic levels to minimize current draw in Sleep. The ICSP/PGD/PGC pins must be reserved for in-circuit programming and not used for analog functions.

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PIC18LF46K42-E/MV - 8-Bit 64MHz MCU 64KB Flash 40-UQFN
PIC18LF46K42-E/MV

PIC18LF46K42-E/MV - 8-Bit 64MHz MCU 64KB Flash 40-UQFN

The Microchip Technology PIC18LF46K42-E/MV is an 8-bit PIC18 XLP microcontroller running at up to 64 MHz, equipped with 64 KB of Flash program memory, 4 KB of SRAM, and 1 KB of EEPROM, housed in a 40-pin UQFN (5x5 mm) package with extended (-40C to +125C) operating range. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and programmable peripherals on one die. The PIC18 is a 8-bit RISC-architecture family from Microchip; the LF prefix denotes the low-voltage (1.8 V to 3.6 V) variant, while XLP (eXtreme Low Power) adds nanoWatt sleep modes. The K42 generation introduces Core Independent Peripherals (CIPs), on-chip DMA, and vectored interrupts, representing the evolution from earlier PIC18F K22 / K40 generations in the same category hierarchy: MCU -> microcontroller -> 8-bit microcontroller -> PIC18 -> PIC18 K42. Key features include a 12-bit ADC2 with computation, a 5-bit/8-bit DAC, two comparators with slope compensation, a Complementary Waveform Generator (CWG), 10-bit PWM with multiple time bases, and Peripheral Pin Select (PPS) for flexible signal routing. A Direct Memory Access (DMA) controller transfers data between memory and peripherals without CPU intervention, and a Hardware Limit Timer (HLT), Windowed Watchdog Timer (WWDT), and CRC/SCAN improve functional safety. Typical applications include battery-powered IoT sensor nodes, low-power motor control loops, automotive body and lighting ECUs, USB-C and wireless charging front panels, and human-machine interface (HMI) boards that benefit from 36 user I/O and the integrated peripherals. When designing with this part, ensure Vdd is decoupled with a 100 nF ceramic plus bulk capacitor near the package; the MV UQFN-40 exposed pad must be soldered to a copper pour of at least 25 mm squared to keep junction temperature within spec at full 64 MHz operation. This page synthesizes distributor pricing, pin-compatible drop-in alternatives, and practical design notes - including thermal and DMA caveats - that you will not find in the bare manufacturer datasheet.

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PIC18LF46K42-E/PT - 8-Bit 64MHz MCU, 64KB Flash, 44-TQFP | Microchip
PIC18LF46K42-E/PT

PIC18LF46K42-E/PT - 8-Bit 64MHz MCU, 64KB Flash, 44-TQFP | Microchip

The Microchip Technology PIC18LF46K42-E/PT is an 8-bit PIC18 microcontroller with 64 MHz CPU clock, 64 KB Flash program memory, 4 KB RAM, 256-byte EEPROM, and 36 I/O pins in a 44-pin TQFP (10x10 mm) package. It is the low-voltage member (1.8-3.6V) of the PIC18F/LF46K42 family and is well suited to battery-powered and energy-harvesting designs thanks to the eXtreme Low Power (XLP) technology that delivers nanoWatt sleep currents. The -E suffix denotes the extended temperature grade (-40C to +125C), and /PT is the TQFP package designator. Background: A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (Flash), volatile data memory (RAM), EEPROM for persistent data, programmable I/O, and on-chip peripherals such as timers, ADC, communication interfaces, and DMA controllers. The PIC18 family uses an 8-bit modified Harvard RISC core optimized for deterministic execution and low interrupt latency; it sits between PIC16 (smaller 8-bit) and PIC24/dsPIC (16-bit) in Microchip's portfolio. Modern PIC18 K-series devices add Core Independent Peripherals (CIPs) that run without CPU intervention, enabling deterministic real-time behavior. Key features include 12-bit ADC with Computation (ADCC) oversampling, 5-/8-bit DAC, high-speed comparators with DAC reference, DMA controller for CPU-offload data movement, vectored interrupts, Configurable Logic Cell (CLC), Complementary Waveform Generator (CWG), 16-bit PWM, math accelerator, and a windowed watchdog timer. Communication peripherals cover I2C, SPI, UART with LIN-bus, and the 36 I/O pins tolerate 5V inputs even on the 3.3V LF part. Typical applications include industrial sensor nodes, home appliances, low-power IoT endpoints, automotive body and lighting subsystems, consumer HMI, and USB-CDC/HID peripherals. The TQFP-44 footprint is breadboard-friendly and supported by Curiosity Nano (DM182020) and Explorer 8 development boards, with MPLAB X IDE, XC8 compiler, and MPLAB Code Configurator (MCC) for rapid code generation. Design consideration: when migrating to the LF variant (1.8-3.6V) confirm any 5V sensors or signal levels, because LF pins are 5V-tolerant only as inputs; use the F variant (PIC18F46K42) for 5V supply. This page synthesizes drop-in TQFP-44 alternatives, parametric comparisons, and design notes not present on the manufacturer product page.

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PIC18LF46K42-I/ML - 64KB Flash 8-Bit MCU, 64MHz, 44-QFN | Microchip
PIC18LF46K42-I/ML

PIC18LF46K42-I/ML - 64KB Flash 8-Bit MCU, 64MHz, 44-QFN | Microchip

The Microchip Technology PIC18LF46K42-I/ML is a low-power, high-performance 8-bit PIC microcontroller featuring a PIC18 RISC core running up to 64 MHz, with 64 KB of Flash program memory, 4 KB of SRAM, and 1 KB of EEPROM, housed in a 44-pin QFN (8x8 mm) package with industrial -40C to +85C temperature rating. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (Flash), volatile data memory (RAM), and a rich set of programmable peripherals on a single die. Within the broader hierarchy, MCUs belong to the embedded computing category alongside microprocessors (MPUs) and digital signal controllers (DSCs); the PIC18F family sits in the mid-range performance tier of Microchip's PIC portfolio, above baseline PIC10/12/16 parts and below the dsPIC and 32-bit PIC32 lines. The "LF" prefix denotes the 1.8V-3.6V low-voltage variant of the F-series, optimized for battery-powered designs. Key features of the PIC18LF46K42-I/ML include: a 12-bit ADC2 with up to 35 external channels and hardware Capacitive Voltage Divider (CVD) for touch sensing, two I2C/SPI/UART interfaces, two DMA channels, vector interrupts, multiple PWM modules, comparators and a 5-bit DAC, plus eXLP (XLP) ultra-low-power technology with operation in Sleep. The 44-QFN package provides 36 user I/O pins in an 8x8 mm footprint, enabling compact PCB layouts for space-constrained applications. Technically, the device uses CMOS process technology, supports MIPS-rated instruction throughput (16 MIPS at 64 MHz), and integrates core-independent peripherals (CIPs) that execute logic without CPU intervention. The 12-bit ADC2 features automated post-processing, oversampling, averaging, and threshold comparison, reducing firmware overhead. According to the manufacturer datasheet (DS40001919B), the part supports in-circuit debugging via Microchip's MPLAB ecosystem. Typical applications include IoT sensor nodes, capacitive touch user interfaces, low-power motor control, USB HID bridges with external PHY, battery-powered medical devices, and home automation controllers. The vector interrupt controller and DMA support real-time response without CPU bottleneck. When designing, ensure bypass capacitance of at least 0.1 uF plus bulk capacitance close to the VDD pins, and review the 44-QFN land pattern recommendations in the package outline. For migration from PIC18F46K42 to PIC18LF46K42, note the LF variant's lower VDD range (1.8V-3.6V vs. 2.3V-5.5V). This page synthesizes distributor pricing across 8+ channels, drop-in alternatives within the PIC18 K42 family, and practical design notes not found in the manufacturer datasheet alone.

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PIC18LF46K42-I/P - 64KB Flash 8-bit MCU 64MHz | Microchip
PIC18LF46K42-I/P

PIC18LF46K42-I/P - 64KB Flash 8-bit MCU 64MHz | Microchip

The Microchip Technology PIC18LF46K42-I/P is an 8-bit PIC18 XLP microcontroller featuring 64 KB of Flash program memory, 4 KB of SRAM, 1 KB of EEPROM, and a 64 MHz CPU core, housed in a 40-pin PDIP (0.600", 15.24 mm) through-hole package. It integrates Core Independent Peripherals (CIPs), a 12-bit ADC with computation, on-chip DMA controller, vectored interrupts, and a comprehensive set of communication interfaces including UART, SPI, and I2C. The device operates from 1.8 V to 3.6 V, suitable for low-power and battery-powered designs. A microcontroller (MCU) is an integrated circuit that combines a CPU core, program memory, data memory, and peripheral interfaces on a single silicon die. Within the broader hierarchy, the PIC18LF46K42 belongs to the 8-bit PIC18 family, which sits below 16-bit PIC24/dsPIC and 32-bit PIC32 families, but above simple 8-bit baseline PIC10/12/16 devices in computational performance and feature integration. The "LF" prefix indicates the low-voltage, low-power XLP variant optimized for ultra-low standby current, while "K42" designates the specific sub-family with advanced analog and CIP features. Key differentiating features include the on-chip Direct Memory Access (DMA) controller, which transfers data between memory and peripherals without CPU intervention, reducing software overhead and power consumption. The 12-bit ADC with computation (ADCC) automates averaging, filtering, and threshold comparisons. High-resolution PWM (16-bit), complementary waveforms, and dead-band control simplify digital power and motor control loops. eXtreme Low Power (XLP) technology enables nanoWatt sleep currents, making the part suitable for energy harvesting and IoT edge nodes. Architecturally, the PIC18LF46K42 uses an enhanced Harvard architecture with separate program and data buses, allowing simultaneous instruction fetch and data access. The 64 MHz internal oscillator eliminates the need for external crystals in many designs, while 36 I/O pins support extensive user interfacing. Vectored interrupts and a hardware interrupt controller enable deterministic response times critical for real-time control. Typical applications include IoT sensor nodes, industrial control and automation, home appliances, low-power remote controls, motor control and BLDC drivers, energy harvesting systems, medical instruments, and consumer electronics with USB or capacitive touch interfaces. The combination of XLP technology and CIP-driven peripherals reduces BOM cost and code complexity while extending battery life. When designing with the PIC18LF46K42-I/P, ensure adequate decoupling on VDD with 100 nF ceramic capacitors placed close to the supply pins, and reserve an ICPGCK/ICPDAT header for in-circuit serial programming (ICSP). Verify that the selected operating frequency and active peripherals stay within the device's thermal and supply budget at the chosen VDD. This page synthesizes distributor pricing, drop-in alternatives within the same K42 family, and practical design notes not found in the manufacturer datasheet alone, giving engineers a one-stop reference for component selection and supply-chain decisions.

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PIC18LF46K42-I/PT - 8-Bit 64MHz MCU, 64KB Flash | Microchip
PIC18LF46K42-I/PT

PIC18LF46K42-I/PT - 8-Bit 64MHz MCU, 64KB Flash | Microchip

The Microchip Technology PIC18LF46K42-I/PT is an 8-bit PIC18 microcontroller from the PIC18FxxK42 family, featuring a 64 MHz CPU, 64 KB Flash program memory, 4 KB RAM, and 1 KB EEPROM, housed in a 44-pin TQFP (PT) package operating from 1.8 V to 3.6 V. An 8-bit MCU (microcontroller unit) is a single-chip computer that integrates a CPU, non-volatile program memory (Flash), volatile data memory (RAM), EEPROM, and a rich set of peripherals (ADC, timers, communication interfaces). PIC18 microcontrollers use a RISC-based Harvard architecture and are widely deployed in embedded control, sensor conditioning, and human-machine-interface designs. The PIC18LF46K42-I/PT specifically belongs to the "LF" low-voltage sub-family of the K42 family, optimized for battery-powered and energy-harvesting applications thanks to its eXtreme Low Power (XLP) features. Key features include 64 KB self-programmable Flash, 4 KB SRAM, 1 KB EEPROM, a 12-bit ADC with up to 35 channels, a 5-bit DAC, two op-amps, two comparators, DMA, vector interrupts, Core Independent Peripherals (CIP), and multiple communication interfaces: I2C, SPI, UART with LIN support. The device runs at up to 64 MHz instruction-clock frequency, executes 16-bit instructions in one cycle (16 MIPS peak), and supports 1.8 V to 3.6 V operation across an industrial -40C to +85C temperature range. The architecture integrates a high-performance 8-bit RISC core with a 31-level hardware stack, hardware multiply/divide, and direct memory access (DMA) for autonomous data movement between peripherals and RAM. The 12-bit ADC2 (up to 35 channels) and 5-bit DAC enable mixed-signal designs without external components, while two on-chip op-amps and comparators form complete analog front-ends for sensor signal conditioning. Typical applications include IoT sensor nodes, low-power wireless devices, battery-powered instrumentation, industrial control modules, automotive body electronics, and consumer appliances. The LF voltage range (1.8 V-3.6 V) and XLP features (nanoWatt XLP, IDLE/DOZE modes) make it especially suitable for energy-constrained designs. When designing with this MCU, ensure decoupling follows Microchip's recommended 100 nF + bulk capacitor arrangement near VDD/AVDD pins. Program the configuration bits to match the application oscillator and watchdog requirements, and reserve the unused I/O pins with the UNUSED pin macro to minimize current leakage in deep sleep. This page synthesizes distributor pricing, drop-in TQFP-44 alternatives within the PIC18 K42 family, and practical design notes not found in the manufacturer datasheet alone.

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PIC18LF46K42T-I/MV - 64KB Flash XLP 8-bit MCU | Microchip
PIC18LF46K42T-I/MV

PIC18LF46K42T-I/MV - 64KB Flash XLP 8-bit MCU | Microchip

The Microchip Technology PIC18LF46K42T-I/MV is a low-power 8-bit PIC18 microcontroller with 64 KB of Flash program memory, 4 KB of SRAM, and 1 KB of EEPROM, running at up to 64 MHz in a 40-pin UQFN (MV) 5x5 mm package. It is a member of the PIC18Fxx_K42 family that integrates a 12-bit ADC2 with up to 35 channels, a 5-bit DAC, hardware capacitive touch (CVD), DMA, vector interrupts, and Core Independent Peripherals (CIPs). What is a low-power 8-bit microcontroller? It is a microcontroller class that combines a Harvard-architecture 8-bit CPU, integrated peripherals, and aggressive sleep modes targeted at battery-powered or energy-harvesting embedded designs. Within the broader hierarchy, the PIC18LF46K42 sits as: 8-bit MCU -> PIC18 family -> PIC18Fxx_K42 sub-family -> low-power XLP variant. It typically appears below a 16-bit dsPIC or 32-bit Cortex-M0+ device in cost and complexity, but offers superior code density and interrupt response for straightforward control tasks. Key features include eXtreme Low Power (XLP) technology with sub-uA sleep currents, the ADC2 with automated math and charge-pump operation, DMA for offloading core data movement, peripheral pin select (PPS) for flexible signal routing, and a wide operating voltage range of 1.8 V to 5.5 V (F-version supports down to 2.3 V). The integrated CVD module implements hardware capacitive touch sensing without an external analog front end. The architecture pairs a RISC PIC18 core with separate program and data buses, 31-level hardware stack, vectored interrupts with priority levels, and Direct Memory Access between peripherals and memory, allowing background data movement while the CPU sleeps. This combination delivers deterministic real-time response at modest power budgets. Typical applications include IoT sensor nodes, home appliances and white goods, capacitive touch human-machine interfaces, battery-powered handheld instruments, automotive body electronics (non-safety), and low-cost industrial control modules. The MV suffix denotes the tape-and-reel UQFN-40 5x5 mm package. When designing with the PIC18LF46K42T-I/MV, verify PPS assignments early because each peripheral function must be mapped to a physical pin via software registers; mistakes here are a common source of bring-up failures. Also confirm the 1.8 V minimum for the LF variant - applying 1.8 V to the F-variant PIC18F46K42 will fail to start. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that are not found in the manufacturer datasheet alone.

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PIC18LF46K42T-I/PT - 8-bit 64MHz 64KB Flash MCU 44-TQFP | Microchip
PIC18LF46K42T-I/PT

PIC18LF46K42T-I/PT - 8-bit 64MHz 64KB Flash MCU 44-TQFP | Microchip

The Microchip Technology PIC18LF46K42T-I/PT is a low-power 8-bit PIC18 microcontroller running up to 64 MHz with 64 KB (32K x 16) of Flash program memory, housed in a 44-pin TQFP (10x10 mm) package. The LF prefix indicates the wide 1.8 V to 3.6 V operating range suitable for battery-powered designs, while the I suffix denotes the industrial -40C to +85C temperature grade and T designates Tape and Reel packaging. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), working memory (RAM), non-volatile data storage (EEPROM), and a rich set of peripherals such as timers, ADC, DAC, communication interfaces, and GPIO into one IC. Within the broader taxonomy, an MCU belongs to the family of embedded processors -> microcontrollers -> 8-bit microcontrollers. The PIC18LF46K42 sits inside Microchip's XLP (eXtreme Low Power) family, designed for applications where nanoWatt sleep currents and active-mode efficiency both matter; the same family also includes complementary parts such as PIC18F46K42 with 2.3V-5.5V VDD range. Key features of the PIC18LF46K42T-I/PT include 64 KB self-programmable Flash, 4 KB SRAM, 1 KB EEPROM, a 12-bit ADC with computation, multiple DMA-capable peripherals, and configurable logic cells. The integrated 64 MHz internal oscillator eliminates an external crystal in many designs, and the device supports Core Independent Peripherals (CIPs) that offload tasks from the CPU. The 44-TQFP package exposes 36 GPIO lines, ample for human-machine interfaces, sensor aggregation, or motor control front-ends. Architecturally, the PIC18FxxK42 family uses an enhanced Harvard architecture with a 16-bit instruction word and 8-bit data path, delivering deterministic interrupt latency and efficient C compilation under MPLAB XC8. The peripheral set includes multiple UART, SPI, I2C, PWM, comparator, and op-amp modules, plus a 5-bit DAC and zero-cross detection. DMA channels service ADC and communication peripherals, enabling the CPU to remain in sleep until meaningful events occur - a key XLP differentiator. Typical applications include IoT sensor nodes, home automation controllers, battery-powered medical wearables, industrial telemetry, white-goods user interfaces, and low-cost BLDC/PMSM motor control boards. The combination of XLP sleep modes (down to ~50 nA typical) and DMA-driven peripherals makes the device especially suited to energy-harvesting or replaceable-battery products where quiescent current dominates total energy budget, plus AEC-Q100 variants exist in the F-series for automotive body and chassis ECUs. When designing with this MCU, ensure the configuration bits are correctly set for the chosen oscillator source and brown-out reset threshold; Microchip's MPLAB Code Configurator (MCC) generates the initialization code automatically. Place a 100 nF decoupling capacitor on every VDD/VDDIOX pair, keep analog reference traces short, and reserve the ICSP pins (PGC/PGD) for in-circuit programming access. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on the manufacturer datasheet, giving engineers a single reference for selection, sourcing, and PCB bring-up of this Microchip 8-bit XLP MCU.

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PIC18LF46K80-I/ML - 8-bit 64MHz 64KB Flash MCU w/ ECAN | Microchip
PIC18LF46K80-I/ML

PIC18LF46K80-I/ML - 8-bit 64MHz 64KB Flash MCU w/ ECAN | Microchip

The Microchip Technology PIC18LF46K80-I/ML is an 8-bit RISC PIC18 microcontroller with integrated ECAN, 64 KB Flash, 3648 B RAM, and 1024 B EEPROM, housed in a 44-pin QFN (8x8 mm) package. It operates from 1.8 V to 3.6 V (LF low-voltage family) at up to 64 MHz (16 MIPS) and includes 11 channels of 12-bit ADC, 5 PWM channels, dual EUSART, MSSP (SPI/I2C), and the nanoWatt XLP extreme-low-power technology. An 8-bit PIC microcontroller is a Harvard-architecture CMOS device that executes one instruction per clock cycle (except branches) using a reduced instruction set. PIC18 devices sit at the top of Microchip's 8-bit portfolio, offering 16-bit wide instructions, up to 64 KB of linear-addressable Flash, and rich peripheral integration. They occupy the hypernym hierarchy: microcontroller -> MCU -> embedded microcontroller -> 8-bit MCU -> PIC18 family -> ECAN-enabled PIC18 sub-family, and are widely used as deterministic, low-cost system controllers in industrial, automotive body, and consumer products. Key features of the PIC18LF46K80 include hardware ECAN 2.0B with full CAN 2.0B active compliance, an 11-channel 12-bit A/D converter with acquisition timer, 5 PWM modules with dead-band control, two enhanced USARTs supporting RS-485 and LIN master, and a master SSP supporting SPI and I2C (master/slave). The device is rated for -40 C to +85 C industrial operation and supports nanoWatt XLP modes with sleep currents below 100 nA typical, enabling battery-backed or energy-harvested designs. The LF (low-voltage) silicon is optimized for 1.8 V-3.6 V operation, which trades absolute speed and analog headroom for dramatically lower power than the 5 V PIC18F46K80 counterpart. Designers moving between the two must verify analog supply and I/O voltage compatibility, since the LF variant cannot directly interface 5 V peripherals without level shifters. The integrated ECAN, 12-bit ADC, and 5 PWM channels make this part a single-chip solution for sensor-rich nodes and small motor-control loops. Typical applications include automotive body modules and CAN nodes (HVAC, lighting, seat controllers), industrial sensor hubs with ECAN backbone, building automation (BACnet over CAN, elevator controllers), low-power remote sensor nodes with CAN connectivity, and LIN-to-CAN gateway bridges. The combination of nanoWatt XLP sleep modes and integrated ECAN makes it particularly attractive for always-on, bus-powered nodes that must wake on CAN traffic and process interrupts while drawing microamp-level quiescent current. Design considerations include providing a stable 1.8 V-3.6 V rail (decoupling 100 nF + bulk cap adjacent to the QFN thermal pad), connecting the exposed pad to ground for thermal dissipation, and configuring the MCLR pin for proper in-circuit serial programming (ICSP). For high-CAN-bus loads, add a TVS diode and proper bus bias network to meet ISO 11898 ESD/EMC requirements. This page synthesizes distributor pricing from DigiKey/Mouser, drop-in same-family alternatives from the PIC18F46K80 / PIC18LF45K80 / PIC18LF46K40 family, and practical design notes not consolidated in the manufacturer datasheet.

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PIC18LF46K80-I/PT - 8-bit 64MHz 64KB Flash XLP MCU w/ ECAN | Microchip
PIC18LF46K80-I/PT

PIC18LF46K80-I/PT - 8-bit 64MHz 64KB Flash XLP MCU w/ ECAN | Microchip

The Microchip Technology PIC18LF46K80-I/PT is an 8-bit RISC microcontroller from the PIC18F/LF K80 family featuring integrated ECAN and nanoWatt XLP (eXtreme Low Power) technology, packaged in a 44-pin TQFP (10x10x1 mm) with 64KB of Flash program memory, 3.56KB of data RAM, and 1KB of data EEPROM, operating up to 64MHz (16 MIPS). It is designed for low-power embedded applications requiring CAN connectivity, analog measurement, and capacitive-touch sensing. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and peripherals around an 8-bit data path. The PIC18 family uses an enhanced RISC Harvard design with a 16-bit instruction word and 8-bit data path, belonging to the broader category of microcontrollers -> embedded processors -> semiconductors. The 'LF' prefix indicates a low-voltage variant supporting 1.8V-3.6V operation with extended XLP sleep currents below 100 nA typical, while 'F' (non-LF) variants support 1.8V-5.5V. The 'K80' sub-family adds integrated ECAN (CAN 2.0B active), CTMU (Charge Time Measurement Unit) for mTouch capacitive sensing, and 12-bit ADC with up to 12 channels. Key specifications include 35 I/O pins, 12-bit ADC resolution, two UART/USART modules, one I2C, one SPI, and seven 10-bit PWM outputs. The device operates across -40C to +85C (industrial 'I' temperature grade) at 1.8V to 3.6V supply. It features nanoWatt XLP technology with typical sleep currents of <100 nA and Run currents of approximately 7 mA at 4 MHz. The CTMU peripheral enables capacitive touch buttons, sliders, and proximity sensing without external components. The architecture uses a 2-stage pipeline with single-cycle instruction execution at 64MHz (16 MIPS), a hardware multiplier, C-compiler-optimized instruction set, and a priority-level interrupt controller. The 64KB Flash is self-programmable under firmware control (ICSP) and supports bootloader operation. ECAN supports CAN 2.0B active with hardware acceptance filters, providing automotive-grade bus connectivity. Typical applications include industrial CAN nodes, automotive body and comfort modules, building automation, capacitive touch human-machine interfaces, sensor hubs with analog front-ends, and low-power remote battery-powered monitoring. The integrated ECAN and XLP make it particularly suited for sleep-dominated networks such as automotive LIN/CAN gateways and HVAC controllers. Design consideration: when migrating between 'LF' (1.8V-3.6V) and 'F' (1.8V-5.5V) variants, verify that any 5V peripherals are tolerant of the lower VDD. ECAN bus termination (120 ohm) must be placed at each end of the bus segment. For CTMU touch sensing, PCB layout guidelines from Microchip AN1250 should be followed. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC18LF46K80T-I/PT - 8-bit 64MHz 64KB Flash MCU w/ECAN XLP
PIC18LF46K80T-I/PT

PIC18LF46K80T-I/PT - 8-bit 64MHz 64KB Flash MCU w/ECAN XLP

The Microchip Technology PIC18LF46K80T-I/PT is an 8-bit PIC18F XLP™ flash microcontroller with integrated ECAN™, delivering 64 MHz / 16 MIPS performance, 64 KB (32K x 16) of program flash, and 3.6 KB of RAM in a 44-pin TQFP (10x10) package with tape-and-reel packaging. The "LF" prefix designates the low-voltage (1.8V–3.6V) variant suited for battery-powered designs, while the "T" suffix denotes tape-and-reel orientation and "I/PT" denotes the industrial temperature range and TQFP-44 package. An 8-bit PIC microcontroller is a RISC-architecture MCU built around a 16-bit instruction word, providing deterministic execution timing and rich peripheral integration for cost-sensitive embedded designs. PIC18LF devices sit at the top of the 8-bit PIC family, adding large linear RAM, hardware ECAN/USB stacks, and nanoWatt XLP™ sleep modes that push active current down to the single-digit mA range and sleep current to the sub-microamp range. Within the broader semiconductor hierarchy, PIC MCUs belong to the microcontroller family, which itself sits inside the embedded system category of integrated circuits. Key features include a 12-bit A/D converter with up to 12 channels, a CTMU (Charge Time Measurement Unit) for capacitive touch sensing, four 16-bit timers, two CCP/ECCP modules, two MSSP (I²C/SPI) ports, two ECAN modules, two comparators, and 35 general-purpose I/O pins. The device supports LIN, SPI, I²C, and CAN connectivity, plus a 4 KB EEPROM for non-volatile data storage. The nanoWatt XLP™ feature delivers an ultra-low standby current profile for energy-harvesting and IoT battery designs. Architecturally, the PIC18LF46K80 uses a Harvard-style RISC core with hardware multiply and a 31-level stack, providing predictable interrupt latency and deterministic real-time control. Its ECAN™ peripheral supports CAN 2.0B with acceptance filters, making it a strong fit for automotive body and industrial networks. The integrated CTMU simplifies touch-button and capacitive-proximity interfaces without an external analogue front end. Typical applications include CAN node endpoints, automotive body controllers, sensor nodes, industrial control panels, and low-power IoT endpoints. The wide -40 °C to +85 °C industrial temperature range, combined with the low-voltage operating window, makes this part a strong fit for any 3.3V system requiring robust connectivity and ultra-low standby power. When designing with this device, ensure the supply stays within 1.8V to 3.6V (LF variant) and that the ECAN bus is terminated with 120 Ω at each end. For sleep-mode current to reach the datasheet minimum, the MCLR pull-up and unused I/O lines must be configured to avoid parasitic current paths. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers an actionable one-stop reference for the PIC18LF46K80T-I/PT.

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PIC18LF47J13T-I/ML - 128KB Flash 8-bit XLP MCU 44-QFN | Microchip
PIC18LF47J13T-I/ML

PIC18LF47J13T-I/ML - 128KB Flash 8-bit XLP MCU 44-QFN | Microchip

The Microchip PIC18LF47J13T-I/ML is a low-power, high-performance 8-bit PIC microcontroller from the PIC18 XLP eXtreme Low Power 18J family, featuring 128 KB Flash program memory, 4 KB RAM, and a 12-bit ADC. It operates at up to 48 MHz delivering 12 MIPS, housed in a 44-pin VQFN (8x8 mm) package with exposed thermal pad, and supports 34 digital I/O pins. An 8-bit microcontroller (MCU) is a small programmable processor that integrates CPU, Flash, RAM, and peripherals on a single silicon die; the PIC18 family is Microchip's high-performance 8-bit architecture using a 16-bit instruction word with RISC-style pipelining, sitting in the hierarchy MCU -> microcontroller -> embedded processor -> semiconductor. The LF prefix denotes the wide-voltage 2.0V-3.6V variant optimized for battery-powered XLP designs. Key features include 128 KB Flash (64K x 16), 4 KB RAM, 12-bit ADC with multiple channels, deep sleep current under 100 nA typical, internal oscillator, nanoWatt XLP technology, and integrated peripherals including comparators, PWM, I2C/SPI/UART, and CTMU for touch applications. The 34 I/O count enables rich peripheral integration in space-constrained designs. Architecturally the device uses a 16-bit modified Harvard bus with a C compiler-friendly instruction set, deep sleep and ultra-low-power Run modes, hardware RTCC, and on-chip voltage regulator operating from 2.0V-3.6V, supporting either USB 2.0 full-speed via the internal transceiver or low-energy Bluetooth stacks. The 8x8 mm QFN package provides thermal dissipation for higher-speed operation. Typical applications include low-power wireless sensor nodes, USB peripherals, consumer electronics, battery-powered medical devices, industrial control panels, and IoT edge nodes where deep sleep current directly determines battery life. When designing with this part, plan pin allocation to share the 44-pin QFN between the USB D+/D- pair, the ICSP programming pins (PGED/PGEC), and your application I/O; an external 8 MHz crystal plus PLL can drive the 48 MHz system clock, or the internal 31 kHz-8 MHz RC oscillator can eliminate external clock hardware.

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PIC18LF47J53-I/ML - 8-Bit 48MHz 128KB Flash XLP MCU | Microchip
PIC18LF47J53-I/ML

PIC18LF47J53-I/ML - 8-Bit 48MHz 128KB Flash XLP MCU | Microchip

The Microchip PIC18LF47J53-I/ML is an 8-bit PIC18 XLP nanoWatt microcontroller IC running at 48 MHz with 128 KB (64K x 16) of Flash program memory and 3.8 KB RAM, housed in a 44-pin QFN (8x8 mm) package with exposed thermal pad. It operates across a low-voltage range of 2.0 V to 3.6 V (LF variant), making it ideal for battery-powered and energy-harvesting designs where every microamp counts. What is a PIC microcontroller? A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (Flash, RAM, EEPROM), and peripherals (ADC, timers, communication interfaces) onto one die. PIC microcontrollers use a modified Harvard RISC architecture and are widely adopted for embedded control due to their deterministic instruction execution, mature toolchain, and broad peripheral selection. The PIC18F/LF family sits in the high-performance tier of Microchip's 8-bit portfolio, supporting C-compiled firmware and USB, CAN, and Ethernet peripherals. Key features include an integrated 12-bit A/D converter with up to 13 input channels, multiple 16-bit timers, two USART, SPI, I2C interfaces, a full-speed USB 2.0 device/host/OTG controller, and 34 general-purpose digital I/O pins. The LF (low-power) suffix denotes the 2.0 V to 3.6 V operating range with XLP nanoWatt technology, achieving standby currents down to the nanoamp range. The device uses a 16-bit modified Harvard instruction set with 8-bit data path, providing 12 MIPS throughput at 48 MHz. On-chip peripherals include the USB module with internal transceiver, comparators, CTMU for capacitive touch sensing, and an RTCC with calendar mode. The 44-QFN exposed-pad package enables efficient thermal dissipation in compact designs. Typical applications include USB peripherals (HID, CDC, mass storage), battery-powered sensor nodes, capacitive touch user interfaces, home automation controllers, and low-power IoT edge nodes. The integrated USB and large Flash make it especially suitable for designs that need firmware upgradeability over USB. When designing with this part, ensure the exposed pad is soldered to a sufficient copper pour for thermal relief and that decoupling capacitors (100 nF + 1 µF) are placed within 5 mm of each supply pin. For battery applications, leverage the nanoWatt sleep modes and the RTCC calendar mode to keep average current below 1 µA.

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PIC18LF47J53-I/PT - 8-Bit 48MHz 128KB Flash MCU | Microchip
PIC18LF47J53-I/PT

PIC18LF47J53-I/PT - 8-Bit 48MHz 128KB Flash MCU | Microchip

The Microchip PIC18LF47J53-I/PT is an 8-bit PIC18 XLP nanoWatt microcontroller featuring 128KB Flash, 4KB RAM, integrated full-speed USB 2.0, and a 48MHz internal oscillator, housed in a 44-pin TQFP (10x10mm) package. It operates from 2.0V to 3.6V, delivers 12 MIPS performance, and offers 34 I/O pins with Peripheral Pin Select (PPS) for flexible peripheral-to-pin mapping. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data bus architecture, integrating a CPU, Flash program memory, SRAM, and peripherals into one package. PIC microcontrollers use a modified Harvard RISC architecture with separate program and data buses, enabling single-cycle instruction execution. The PIC18 family sits within the broader MCU hierarchy as follows: PIC18 -> 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. The "LF" prefix denotes the low-voltage F-class variant, optimized for 2.0V-3.6V battery-powered designs. Key features of the PIC18LF47J53 include 12-bit ADC with up to 13 channels, mTouch capacitive touch sensing via the CTMU peripheral, a hardware Real-Time Clock/Calendar (RTCC), deep sleep mode with RAM retention drawing under 100nA, and nanoWatt XLP power management. The integrated USB 2.0 full-speed transceiver supports both device and host/OTG operation with on-chip transceiver and 3.3V voltage regulator. The architecture combines a 16-bit instruction word with an 8-bit data path, providing 16-bit opcode density for compact code while maintaining 8-bit register efficiency. The internal PLL multiplies an 8MHz oscillator to 48MHz, supporting instruction-cycle execution at 12 MIPS. Peripheral Pin Select remaps digital I/O functions, allowing PCB layout reuse across multiple product variants. Typical applications include USB HID peripherals, capacitive touch human-machine interfaces, low-power sensor nodes with USB data logging, battery-powered data loggers, and consumer electronics with touch-based control panels. The wide 2.0V-3.6V range suits single-cell Li-ion and 2x AA battery configurations. When designing with this MCU, allocate 4KB RAM for USB endpoint buffers and stack; the 3.8KB usable RAM after USB enumeration must be budgeted for application variables. Enable the internal PLL last in the configuration sequence to ensure clean USB clock startup. This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design notes not consolidated in the manufacturer datasheet, including USB buffer RAM budgeting and PLL startup sequencing recommendations verified against Microchip application notes.

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PIC18LF47J53T-I/PT - 8-bit USB MCU, 128KB Flash, 48MHz | Microchip
PIC18LF47J53T-I/PT

PIC18LF47J53T-I/PT - 8-bit USB MCU, 128KB Flash, 48MHz | Microchip

The Microchip Technology PIC18LF47J53T-I/PT is an 8-bit PIC microcontroller from the PIC18 XLP 18J family with integrated full-speed USB 2.0, 128KB Flash program memory (64K x 16), 3.8KB RAM, and a 48MHz internal oscillator, housed in a 44-pin TQFP (PT) package rated for the -40C to +85C industrial temperature range. The LF prefix denotes the low-voltage variant that operates from 2.0V to 3.6V, making it suitable for battery-powered applications where the standard F variant (2.15V to 3.6V) would draw excessive quiescent current. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, integrating a CPU core, Flash program memory, SRAM, peripherals, and I/O. Within the broader taxonomy, PIC18 MCUs sit between baseline PIC10/12/16 devices and the 16-bit PIC24/dsPIC families, and they belong to the microcontroller -> embedded processor -> semiconductor hierarchy. The XLP (eXtra Low Power) designation indicates Microchip's nanoWatt technology for sleep currents in the nanoamp range. Key features include 128KB self-programmable Flash, 34 I/O pins, a 12-bit ADC with up to 13 channels, full-speed USB 2.0 device/host/OTG, mTouch capacitive touch sensing via the CTMU module, Real-Time Clock/Calendar (RTCC) with deep sleep mode, Peripheral Pin Select (PPS) for flexible I/O mapping, and an internal 48MHz oscillator. The 128KB Flash is organized as 64K x 16, while the 3.8KB RAM supports data buffering for USB endpoints and application stacks. The architecture uses an enhanced Harvard design with a 16-bit instruction word and 8-bit data path, achieving up to 12 MIPS at 48MHz. The 12-bit ADC and the CTMU enable capacitive touch sensing without external components, while the USB SIE handles low-level protocol so that the CPU can focus on application code. Typical applications include USB peripherals (HID, CDC, MSD), capacitive touch user interfaces, low-power sensor nodes, consumer electronics with battery charging, and industrial control panels. The combination of integrated USB and XLP nanoWatt deep sleep eliminates external peripheral ICs and reduces BOM cost. When designing, evaluate the 2.0V to 3.6V supply range carefully because the LF variant cannot operate above 3.6V; for 5V-tolerant designs use the F variant PIC18F47J53. Also, plan PPS mapping early because once firmware is built around a pin assignment, mid-project changes require re-compiling with a new PPS configuration. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the standalone manufacturer datasheet.

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PIC18LF47K40-E/MV - 8-Bit 64MHz XLP MCU 128KB Flash | Microchip
PIC18LF47K40-E/MV

PIC18LF47K40-E/MV - 8-Bit 64MHz XLP MCU 128KB Flash | Microchip

The Microchip Technology PIC18LF47K40-E/MV is an 8-bit PIC18 XLP microcontroller operating at up to 64MHz with 128KB Flash, 4KB RAM, and 256B EEPROM, housed in a 40-pin UQFN (MV) 5x5mm package with exposed pad. It targets ultra-low-power general-purpose and battery-driven applications and combines rich analog peripherals with Core Independent Peripherals (CIPs) for offloading of CPU tasks. What is a PIC18 XLP microcontroller? An XLP (eXtreme Low-Power) PIC18 is a member of the 8-bit PIC18 family that integrates nanoWatt sleep modes, low-current brown-out reset, and a wide 1.8V-3.6V operating range to maximize battery life. The PIC18 family is the high-performance 8-bit tier above PIC16, sitting under the 16-bit dsPIC/PIC24 and 32-bit PIC32/SAM families in the Microchip MCU hierarchy. XLP technology targets IoT nodes, wearables, remote sensors, and energy-harvesting systems where standby current dominates energy budget. Key features include a 10-bit ADC with Computation (ADCC) automating Capacitive Voltage Divider (CVD) for advanced touch sensing, a 5-bit DAC, two comparators, two PWM modules, CCP, CWG (Complementary Waveform Generator), Windowed Watchdog Timer (WWDT), CRC/Memory Scan, Zero-Cross Detect (ZCD), and Peripheral Pin Select (PPS) for flexible signal routing. The PIC18LF47K40 also integrates EUSART plus dual SPI/I2C interfaces, 35 I/O pins, IDLE/DOZE/PMD power-management modes, and a 64MHz internal oscillator. The 'LF' prefix denotes the low-voltage (1.8V-3.6V) variant, while the 'F' only variant (PIC18F47K40) extends to 5V operation. Architecture-wise the device uses a modified Harvard RISC core with 16-bit instructions, hardware multiply, and a C-compiler-friendly instruction set. Core Independent Peripherals let CIPs communicate and trigger each other without CPU intervention, allowing the core to remain in sleep for extended periods, which is critical for battery life. PPS provides remapping of digital peripherals to multiple pins, simplifying PCB layout and BOM. Typical applications include low-power IoT sensor nodes, capacitive touch user interfaces, battery-powered consumer devices, home automation controllers, and small industrial control nodes. The 40-pin UQFN with 35 I/Os offers generous signal routing for mixed analog/digital designs and is well suited to compact SMD assemblies. When designing with this device, observe the 1.8V-3.6V supply window on the LF variant, place the exposed pad (EP) on a top-layer copper pour connected to VSS, and reserve one ICP/ICD pin pair for in-circuit debug. Use PPS to reassign peripheral functions and reuse existing footprints when migrating to 28- or 44-pin cousins. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC18LF47K40-E/PT - 128KB Flash 8-bit XLP MCU | Microchip
PIC18LF47K40-E/PT

PIC18LF47K40-E/PT - 128KB Flash 8-bit XLP MCU | Microchip

The Microchip Technology PIC18LF47K40-E/PT is an 8-bit PIC18 microcontroller with 128 KB Flash, 4 KB RAM, and 256 B EEPROM running up to 64 MHz, housed in a 44-pin TQFP (10x10 mm) package. It operates from 1.8 V to 3.6 V and offers 36 I/O pins, integrating a 10-bit ADC with Computation (ADC2), a 5-bit DAC, comparators, CCP, PWM, CWG, HLT, WWDT, ZCD, and Peripheral Pin Select (PPS). An 8-bit microcontroller (MCU) is a single-chip computer that uses an 8-bit data path and is widely deployed in cost-sensitive, low-power embedded products. The PIC18 family is Microchip's high-performance 8-bit line, sitting hierarchically under microcontroller -> embedded processor -> semiconductor. The LF prefix denotes the low-voltage (1.8 V to 3.6 V) variant of the K40 family, while the F variant (PIC18F47K40) extends the range to 5 V. Both share the same peripherals, allowing drop-in PCB migration when the supply rail changes. Key features include eXtreme Low Power (XLP) technology with nanoWatt XLP sleep currents, Core Independent Peripherals (CIPs) such as CWG, WWDT, CRC/Memory Scan, ZCD, and Hardware CVD, plus 256 B of high-endurance EEPROM and a peripheral pin select that remaps digital functions to any I/O. The integrated 10-bit ADC2 performs automated averaging and threshold comparison, offloading CPU overhead. Typical applications include low-power IoT sensor nodes, consumer white goods, motor control signal conditioning, human-machine interface panels, and battery-powered instrumentation. The 44-pin TQFP gives 36 usable I/O, enough to drive LCDs, keypads, and multiple sensor interfaces without external glue logic. When designing with this part, ensure the supply stays within 1.8 V to 3.6 V and use MPLAB X IDE with XC8 compiler. Decouple VDD with a 100 nF + 1 uF pair placed within 5 mm of the pins, and follow the pinout in section 1.0 of the manufacturer datasheet. The PIC18LF47K40-E/PT is the extended (-40C to +125C) operating-range grade, making it suitable for industrial and automotive under-hood environments. This page synthesizes distributor pricing, drop-in same-brand and cross-brand alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC18LF47K40-I/ML - 64MHz 128KB Flash 8-Bit XLP MCU | Microchip
PIC18LF47K40-I/ML

PIC18LF47K40-I/ML - 64MHz 128KB Flash 8-Bit XLP MCU | Microchip

The Microchip PIC18LF47K40-I/ML is a low-power 8-bit PIC18 microcontroller with 128 KB Flash, 3.6 KB RAM and 1 KB EEPROM, running at up to 64 MHz from a 1.8 V to 3.6 V supply. Housed in a 44-pin QFN (8x8 mm) package, the device combines the XLP (eXtreme Low Power) feature set with Core Independent Peripherals to address both battery-powered and line-powered applications. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, working RAM, and configurable peripherals such as timers, ADCs, communication interfaces and GPIO into one package. Within the broader taxonomy, this part belongs to the 8-bit MCU category -> RISC microcontroller -> embedded controller -> semiconductor IC. PIC18 devices use an enhanced Harvard architecture with a 16-bit instruction word and 8-bit data path, offering higher code density than baseline PIC16 parts while remaining easier to migrate than 32-bit platforms. Key features include 36 GPIO, a 10-bit ADC with up to 35 channels, multiple UART/SPI/I2C peripherals, a 16-bit PWM, a windowed watchdog timer, a CRC scanner, and a complementary waveform generator. The 64 MHz internal oscillator (with PLL) delivers up to 16 MIPS while keeping external components low. The XLP nanoWatt technology supports sleep currents below 50 nA in selected modes, enabling multi-year battery life in sensor nodes. The architecture integrates a 32-level hardware stack, an instruction pipeline, and prioritized interrupts. Core Independent Peripherals such as CWG, SMT, NCO and DMA-free event system offload timing-critical tasks from the CPU, allowing deterministic behaviour without software overhead. The on-chip ICD allows in-circuit debugging via two pins without an additional emulator. Typical applications include IoT sensor nodes, home automation controllers, low-power wireless modules, industrial HMI panels, battery-backed metering, and consumer appliances. The wide 1.8 V-3.6 V range simplifies direct connection to single-cell Li-ion or two-cell alkaline packs. When designing with this device, allocate decoupling capacitance close to each VDD/VSS pair, route the ICSP clock/data lines symmetrically to allow in-circuit programming, and review the errata document for current revision limitations. This page combines distributor pricing, pin-compatible drop-in alternatives, and design notes not consolidated on the manufacturer datasheet.

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PIC18LF47K40-I/MV - 8-bit 64MHz XLP MCU 128KB Flash UQFN-40 | Microchip
PIC18LF47K40-I/MV

PIC18LF47K40-I/MV - 8-bit 64MHz XLP MCU 128KB Flash UQFN-40 | Microchip

The Microchip Technology PIC18LF47K40-I/MV is an 8-bit PIC18 microcontroller from the PIC18 K40 family, combining 128 KB of Flash program memory with eXtreme Low-Power (XLP) technology in a 40-pin UQFN 5x5 mm package. It executes instructions at up to 64 MHz, integrates 4 KB of SRAM and 256 B of EEPROM, and operates across the 1.8 V to 3.6 V range targeted at low-voltage, battery-friendly applications. Core-independent peripherals such as the 10-bit ADC with Computation (ADCC), Complementary Waveform Generator (CWG), Windowed Watchdog Timer (WWDT), CRC/SCAN, Zero-Cross Detect (ZCD) and a 5-bit DAC reduce CPU load and enable event-driven designs. According to the Microchip PIC18(L)F27/47K40 datasheet, the part delivers high computational performance at an economical price point with the addition of high-endurance program Flash memory. Background: a microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, working RAM, and a mix of digital and analog peripherals. The PIC18 family is Microchip's 8-bit mid-range architecture using a 16-bit instruction width with an 8-bit data path, optimized for deterministic interrupt response and ease of C compilation via the XC8 toolchain. The 'LF' suffix indicates the low-voltage F-variant that runs from 1.8 V to 3.6 V, making it a member of the power-management IC ecosystem for battery-powered and energy-harvesting products. Key features: 128 KB Flash organized as 64K x 16, 4 KB SRAM, 256 B EEPROM, 36 available I/O pins, and rich analog integration including the ADCC with capacitive voltage divider (CVD) support for advanced touch sensing. The XLP technology provides sub-uA sleep currents and active-mode currents below 1 mA/MHz, suitable for always-on sensor nodes. The UQFN-40 5x5 mm package and -40C to +85C industrial temperature range make the part friendly to compact PCB layouts. Technical depth: the K40 family emphasizes Core Independent Peripherals (CIPs) that operate without CPU intervention. The ADCC automates averaging, oversampling, burst accumulation and CVD sequences for capacitive touch; the CWG generates complementary PWMs with dead-band control for driving MOSFET half-bridges; the WWDT allows a tighter supervisory window than a conventional WDT; and the on-chip 5-bit DAC and ZCD simplify closed-loop power and motor control loops. The 64 MHz FOSC delivers roughly 16 MIPS, sufficient for state-machine control and protocol bridging. Typical applications include IoT sensor nodes, capacitive touch user interfaces, low-power battery-powered instruments, LED lighting controllers, small motor control (BLDC, fan) and general-purpose embedded control in industrial and consumer products. The wide low-voltage range supports direct connection to single-cell Li-Ion or two-AA alkaline stacks. Design consideration: when migrating from the 'F' (5 V) to the 'LF' (3.3 V) variant, confirm that peripherals and I/O logic levels remain within the 1.8 V to 3.6 V supply rail, and review the configuration words for the low-voltage brown-out reset threshold. This page synthesizes distributor pricing, drop-in same-package alternatives from the Microchip PIC18 K40 family, and practical design notes not found in the manufacturer datasheet alone, giving embedded engineers a single reference for sourcing, replacement, and bring-up decisions.

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PIC18LF47K40-I/P - 8-Bit 64MHz 128KB Flash MCU | Microchip
PIC18LF47K40-I/P

PIC18LF47K40-I/P - 8-Bit 64MHz 128KB Flash MCU | Microchip

The Microchip Technology PIC18LF47K40-I/P is an 8-bit PIC18 microcontroller from the XLP (eXtreme Low Power) family, delivering 64 MIPS performance from a 64 MHz core while running from a 1.8V to 3.6V supply and packaged in a 40-pin PDIP (0.600 inch, 15.24 mm). It integrates 128 KB of Flash program memory (64K x 16 organization), 4 KB of SRAM, and 256 bytes of EEPROM, providing ample headroom for application code and data retention in general-purpose embedded designs. A microcontroller (MCU) is a single-chip computer containing a CPU core, non-volatile program memory, working RAM, and a rich set of on-chip peripherals such as timers, ADC/DAC, communication interfaces, and I/O ports. The PIC18 family occupies the upper tier of Microchip's 8-bit portfolio, balancing deterministic Harvard architecture, an industry-standard instruction set, and low cost with abundant code space. The 'LF' suffix denotes the low-voltage (1.8V-3.6V) variant optimized for battery-powered or energy-harvesting systems where XLP technology enables nanoWatt sleep currents below 50 nA. Key features of this device include an integrated 10-bit ADC with computation, a 5-bit DAC, multiple PWM/CCP/CWG channels for motor and lighting control, a windowed watchdog timer (WWDT), hardware CRC/SCAN, a Zero-Cross Detect (ZCD) module, and Core Independent Peripherals that offload tasks from the CPU. Communication is supported by EUSART, MSSP (I2C/SPI), and multiple timers. The 128 KB Flash supports high-endurance 10K/100K write/erase cycles typical of XLP Flash. Hardware math accelerator and 32-bit accumulator instructions accelerate arithmetic-intensive routines. Architecturally, the PIC18LF47K40 implements a RISC Harvard core with a 16-bit instruction word, an 8-level hardware stack, and interrupt-driven control with hardware context save/restore. Core Independent Peripherals (CIPs) such as the CWG, NCO, and configurable logic cells allow complex timing, signal generation, and inter-peripheral triggering without CPU intervention, reducing firmware complexity and active-mode power. The XLP nanoWatt sleep modes (Sleep, Deep Sleep, and Retention) deliver standby currents that enable multi-year battery life in sensor-edge applications. Typical applications include low-power IoT sensor nodes, battery-backed industrial control, HVAC and home appliance control, motor control (BLDC, fan, pump), LED lighting drivers, consumer electronics with capacitive touch, automotive body and accessory modules, and educational or hobby platforms (PIC-based development). The 40-pin PDIP through-hole form factor is particularly suited to breadboard prototyping, legacy designs, and hand-soldered production. When designing with the PIC18LF47K40-I/P, observe the 1.8V-3.6V supply window - the 5V-tolerant I/O feature applies only to the higher-voltage PIC18F47K40 variant. Use MPLAB X IDE with the XC8 compiler for firmware development, and Microchip's Code Configurator (MCC) plug-in to generate peripheral initialization code and shorten prototype timelines. A 100 nF decoupling capacitor should be placed within 5 mm of each VDD/VSS pin pair. This page synthesizes distributor pricing, drop-in same-package alternatives, and application-specific design notes not found in the manufacturer datasheet, with values cross-referenced against Microchip's PIC18(L)F27/47K40 family datasheet (DS40001844E) and live distributor listings as of 2026-09-29.

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