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PIC18LF55K42T-I/PT - 32KB Flash 64MHz 8-bit XLP MCU | Microchip
PIC18LF55K42T-I/PT

PIC18LF55K42T-I/PT - 32KB Flash 64MHz 8-bit XLP MCU | Microchip

The Microchip Technology PIC18LF55K42T-I/PT is an 8-bit PIC RISC microcontroller from the PIC XLP 18K family, delivering 64 MHz CPU performance with 32 KB (16K x 16) of Flash program memory, 2 KB of SRAM, and 256 bytes of EEPROM in a 48-pin TQFP-EP (7x7) package. The device integrates 12-bit ADC2 with computation, vector interrupts, DMA, Memory Access Partitioning (MAP), Device Information Area (DIA), DAC, comparators, and PWM peripherals. An 8-bit microcontroller (MCU) is a programmable integrated circuit that executes instructions on an 8-bit data bus, typically based on CISC (PIC, 8051) or RISC (AVR, PIC18) architectures. MCUs integrate CPU, RAM, non-volatile memory, and peripherals on a single die, forming the lowest tier of embedded computing - between discrete logic and full application processors - and serve as the decision-making core in virtually every electronic product from appliances to industrial controllers. Key features include the eXtreme Low Power (XLP) technology for battery-friendly operation, an active clock scaling from 1 MHz to 64 MHz, four 16-bit timers, multiple UART/SPI/I2C interfaces, and a 1.8 V to 3.6 V supply range suited to single-cell Li-ion and coin-cell applications. The 48-pin TQFP-EP exposed-pad package delivers 44 usable I/O lines while providing a thermal dissipation path for the 64 MHz core. Architecturally, the PIC18LF55K42T uses a Harvard-style RISC core with a modified instruction set supporting hardware multiply and a 16-bit instruction word, allowing most instructions to execute in one cycle. The CIP (Core Independent Peripherals) ecosystem - including CWG, NCO, DSM, and PWM - lets timing-sensitive tasks run without CPU intervention, freeing the 8-bit core for application logic. Typical applications include IoT sensor nodes, low-power consumer devices, industrial control panels, home appliances, USB human-interface devices (when paired with the internal USB module in sister parts), motor control, and battery-backed instrumentation. The exposed-pad TQFP supports reflow profiles up to JEDEC J-STD-020 standards. When designing with this device, choose between the internal 16 MHz HFINTOSC and an external crystal based on USB or CAN timing requirements. Note that the LF (low-voltage/F-version) variant supports 1.8 V minimum Vdd; the F-version PIC18F55K42 is required for 5 V designs, while the LF is optimal for 3.3 V regulated rails. This page synthesizes distributor pricing, pin-compatible drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC18LF56K42-E/MV - 8-bit XLP MCU, 64KB Flash, 48-UQFN | Microchip
PIC18LF56K42-E/MV

PIC18LF56K42-E/MV - 8-bit XLP MCU, 64KB Flash, 48-UQFN | Microchip

The Microchip Technology PIC18LF56K42-E/MV is an 8-bit PIC18 XLP microcontroller with 64KB Flash, 4KB RAM, and 256B EEPROM, operating up to 64MHz in a 48-pin UQFN (6x6) package with exposed pad. The device integrates a 12-bit ADC2, DAC, comparators, DMA, vector interrupts, and core-independent peripherals including CWG, ZCD, PWM, EUSART, SPI/I2C, and PPS for flexible pin mapping. A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory (Flash), working memory (RAM), non-volatile data storage (EEPROM), and programmable peripherals. The PIC18 family uses a RISC-based Harvard architecture optimized for deterministic interrupt response, low power consumption, and high code density. The 'LF' prefix designates the wide-voltage variant supporting both 3.3V and 5V operation, while 'XLP' (eXtreme Low Power) signifies Microchip's nanoWatt XLP technology, with sleep currents in the nanoampere range for battery-powered applications. Key features of the PIC18LF56K42 include a 12-bit ADC with Computation (ADC2) capability, a 5-bit DAC, three op-amps, two comparators, Zero-Cross Detection (ZCD), Complementary Waveform Generator (CWG), four 16-bit timers, Windowed Watchdog Timer (WWDT), and a Direct Memory Access (DMA) controller. The integrated Peripheral Pin Select (PPS) module remaps most digital I/O to virtually any pin, simplifying PCB layout. The Device Information Area (DIA) and Memory Access Partition (MAP) provide hardware-based security for firmware protection and field updates. The architecture leverages a modified Harvard bus with separate program and data paths, allowing simultaneous Flash fetch and SRAM access via the DMA engine. Power management includes IDLE and DOZE modes, Peripheral Module Disable (PMD) registers to gate unused peripherals, and a Hardware Limit Timer (HLT) for autonomous peripheral operation without CPU intervention. The SCAN/CRC engine performs hardware-based cyclic redundancy checks for safety-critical code integrity verification. Typical applications include IoT sensor nodes, home automation controllers, industrial HMI panels, low-power remote controls, and battery-powered medical monitoring devices. The 48-pin UQFN package suits space-constrained designs and supports operation over the -40C to +125C industrial temperature range. When designing with this MCU, allocate sufficient decoupling (100nF + 1uF ceramic) near each VDD/VSS pair, follow Microchip's Emulation Pod layout guidelines for ICD programming, and verify PPS remapping configurations to avoid peripheral pin conflicts. The 6x6 UQFN requires PCB land pattern adherence per IPC-7351. This page synthesizes distributor pricing, verified drop-in alternatives, and practical design notes drawn from Microchip application notes, not merely duplicating the manufacturer datasheet content.

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PIC18LF56K42-E/PT - 8-bit 64KB Flash MCU, 48-Pin TQFP | Microchip
PIC18LF56K42-E/PT

PIC18LF56K42-E/PT - 8-bit 64KB Flash MCU, 48-Pin TQFP | Microchip

The Microchip Technology PIC18LF56K42-E/PT is an 8-bit PIC RISC microcontroller with 64KB Flash, 4KB RAM, and 256B EEPROM, operating up to 64MHz in a 48-pin TQFP-EP (7x7mm) package. It belongs to the PIC18 "K42" family, integrating a rich set of core-independent peripherals including a 12-bit ADC2 with Computation (ADCC), DMA controller, vectored interrupts, peripheral pin select (PPS), and a high-resolution PWM/CWG. The device also includes a 5-bit DAC, comparators, zero-cross detect (ZCD), hardware limit timer (HLT), windowed watchdog (WWDT), CRC/SCAN, and dual EUSART plus SPI/I2C serial interfaces. An 8-bit microcontroller (MCU) is a programmable integrated circuit that executes instructions fetched from on-chip program memory and provides built-in peripherals for digital I/O, analog signal conversion, and serial communication. The 8-bit PIC RISC architecture sits within the broader microcontroller taxonomy: MCU -> embedded controller -> semiconductor device. 8-bit MCUs remain dominant in cost-sensitive, low-power applications where deterministic interrupt response and long product lifecycle outweigh raw computational throughput. Key features of the PIC18LF56K42 include the eXtreme Low Power (XLP) sleep current of <100 nA typical, ideal for battery-backed IoT endpoints. The device supports 1.8V to 3.6V operation (the "LF" prefix) and includes Microchip's MPLAB X IDE ecosystem with XC8 compiler support. Operating temperature range is -40C to +125C (the "E" suffix), suiting industrial environments. Architecturally, the K42 family implements a Harvard architecture with 16-bit instructions and separate 16-level hardware stack, hardware multiplier, and C-optimized instruction set. The integrated DMA engine offloads repetitive data transfers between peripherals and RAM, freeing the core for application logic - a meaningful upgrade over PIC18F46K22 predecessors that lacked DMA. Typical applications include industrial sensor nodes with analog signal conditioning, low-power IoT battery nodes, USB-CDC/HID peripherals with EUSART bridges, LED lighting controllers using the high-resolution PWM, and motor control (BLDC/PMSM) using the CWG and fast ADC sampling. Designers transitioning from PIC18F46K22 or PIC18F46K80 designs gain DMA, CRC, and modern peripherals without pin-out changes when migrating within the 48-pin TQFP family. Design consideration: ensure MPLAB X IDE 5.50+ with MPLAB Code Configurator (MCC) Melody or Classic is used to generate device configuration; the PPS mapping must be assigned before peripheral use to avoid pin collisions on the 48-pin TQFP-EP footprint. This page synthesizes distributor pricing, drop-in same-package alternatives within the PIC18 K42 family, and practical design notes not found in the manufacturer datasheet.

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PIC18LF56K42-I/PT - 64KB Flash 8-Bit MCU | Microchip | XLP 18K
PIC18LF56K42-I/PT

PIC18LF56K42-I/PT - 64KB Flash 8-Bit MCU | Microchip | XLP 18K

The Microchip Technology PIC18LF56K42-I/PT is a low-power 8-bit PIC18 XLP 18K microcontroller running up to 64 MHz with 64 KB Flash, 4 KB RAM and 256 B EEPROM in a 48-pin TQFP-EP (7x7 mm) package. Operating from 1.8 V to 3.6 V on the LF process variant, the part integrates 44 I/O, 12-bit ADC2 with Computation, vector interrupts, DMA, MAP, Device Information Area (DIA), 5-bit DAC, comparators and PWM modules. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory (Flash), volatile data memory (RAM), EEPROM for parameter storage, and configurable peripherals such as ADC, timers and communication interfaces on one silicon die. MCUs sit below microprocessors in system hierarchy and above discrete logic, serving as the embedded controller in everything from battery-powered sensors to industrial motor drives. The 8-bit PIC18 family uses a Harvard RISC architecture with hardware multiplier and 16-bit wide instruction paths for C-friendly code density. Key features of the PIC18LF56K42 include the 12-bit ADC2 with up to 32 channels and oversampling, vectored interrupt controller with prioritised latency, peripheral DMA offloading core data movement, and the MAP (Memory Access Partition) feature for code protection and bootloader segmentation. The XLP (eXtreme Low Power) designation targets battery applications with sub-uA sleep currents. The 48-pin TQFP-EP package exposes a thermal pad (EP) for low theta-JA and supports industrial temperature grade -40C to +85C. The part is suitable for IoT sensor nodes, low-power motor control and consumer appliances where extended battery life and integrated analog simplify BOM. Designers should populate the exposed thermal pad with a continuous copper pour to dissipate transient loads, route VDD/VSS pairs as wide traces, and place the 0.1 uF + 1 uF decoupling network within 2 mm of each power pin. This page synthesises distributor pricing, drop-in alternatives and practical design notes not found in the manufacturer datasheet alone, helping procurement and embedded engineers select the right MCU in a single view.

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PIC18LF56K42T-I/MV - 8-Bit 64MHz 64KB Flash XLP MCU | Microchip
PIC18LF56K42T-I/MV

PIC18LF56K42T-I/MV - 8-Bit 64MHz 64KB Flash XLP MCU | Microchip

The Microchip Technology PIC18LF56K42T-I/MV is an 8-bit PIC18 XLP microcontroller running up to 64 MHz with 64 KB Flash, 4 KB RAM and 256 B EEPROM, housed in a 48-pin 6x6 mm UQFN (MV) package with exposed pad. The "LF" prefix indicates the low-power, wide-voltage F-variant operating from 1.8 V to 3.6 V. What is a microcontroller? A microcontroller (MCU) is a single-chip computer integrating CPU, non-volatile program memory (Flash), volatile data memory (RAM), EEPROM, and a rich set of peripherals (ADC, timers, communication ports). Within Microchip's taxonomy, this part belongs to PIC18F/LF XLP 18K family -> 8-bit PIC MCU -> PIC microcontroller -> microcontroller -> embedded semiconductor. The XLP (eXtreme Low Power) designation targets battery-powered and energy-harvesting designs where nanoWatt sleep currents and fast wake-up times are critical. Key features include 44 user I/O pins, 12-bit ADC2 with computation, two 8-bit DACs, three comparators with 5-bit DAC references, 8-bit DMA controller, vectored interrupts with peripheral interrupt controllers, configurable logic cells (CLC), Complementary Waveform Generator (CWG), multiple PWM/SCCP/MCCP channels, and rich serial peripherals (UART, SPI, I2C). The 64 MHz internal oscillator and 4x PLL deliver 16 MIPS instruction throughput while the XLP sleep mode can drop quiescent current below 100 nA. The K42 architecture adds hardware-accelerated math (8x8 hardware multiplier, single-cycle 16-bit math), zero-cross detection for triac control, and Direct Memory Access that lets peripherals move data without CPU intervention - reducing active-mode time and overall system power. Typical applications include IoT sensor nodes, home appliances (washing machine, induction cooktop, white goods UI), portable medical devices, BLDC motor control, LED lighting controllers, and battery-powered instrumentation. Designers favor the LF variant when the supply rail is 2x AA/AAA or a Li-ion cell under boost regulation. When designing with this MCU, allocate one decoupling 100 nF cap per VDD pin and a 1 uF bulk cap near the exposed pad; route AVSS/AVDD separately for clean ADC reference. Use the DMA for periodic sensor reads so the core can stay in sleep - that is where XLP delivers its largest energy savings.

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PIC18LF57K42-I/MV - 64MHz 8-bit XLP MCU, 128KB Flash | Microchip
PIC18LF57K42-I/MV

PIC18LF57K42-I/MV - 64MHz 8-bit XLP MCU, 128KB Flash | Microchip

The Microchip Technology PIC18LF57K42-I/MV is a low-power, high-performance 8-bit PIC microcontroller from the PIC18FxxK42 family, integrating 128 KB of Flash, 8 KB of RAM, and 256 bytes of EEPROM in a 48-pin UQFN (MV) 6x6 mm package. The LF-suffix device operates across a 1.8 V to 3.6 V core supply range, drawing nanoWatt XLP sleep currents in the hundreds of nanoamp range, while the CPU executes up to 64 MHz instructions (16 MIPS) from a 64 MHz internal HFINTOSC. The part exposes 44 digital I/O pins, peripheral pin select (PPS) for flexible signal routing, and a rich mix of core-independent peripherals including a 12-bit ADC with Computation (ADC2), 5-bit/8-bit DAC, comparators, zero-cross detect (ZCD), CWG, SMT timer, and configurable PWM/CCP modules. What is a PIC18 microcontroller? A PIC18 microcontroller is an 8-bit Harvard-architecture MCU from Microchip Technology, belonging to the larger microcontroller hierarchy (MCU -> 8-bit MCU -> PIC -> PIC18). The PIC18F/LF K42 family introduces Core Independent Peripherals (CIPs) and Direct Memory Access (DMA), allowing autonomous I/O processing without CPU wake-up, which significantly reduces average power and frees the CPU for application logic. The 'LF' sub-family targets low-voltage battery applications, while the 'F' sub-family extends to 5 V operation. Key differentiating features include the 12-bit ADC2 with averaging and automatic threshold comparisons, DMA-driven peripheral data movement, an on-chip temperature indicator, vectored interrupts with priority levels, and a Device Information Area (DIA) for unique serialization. The Device Information Area (DIA) stores factory calibration constants that the user application can call to compensate for temperature and voltage drift without external components, which is critical for sensor and metering applications. Architecturally, the device uses a 16-bit modified-Harvard instruction set with separate program and data buses, hardware multiply, and a 31-level hardware stack. The PPS (Peripheral Pin Select) module is unique to the K42 family and lets designers remap digital peripheral signals (UART, PWM, SPI, timers) to almost any I/O pin, simplifying PCB layout and enabling a single PCB to host multiple firmware variants. Typical applications include ultra-low-power wireless sensor nodes running on coin cells, IoT edge devices with DMA-driven sensor sampling, industrial control with vectored interrupts, USB-free human-interface peripherals (HID), battery-powered medical wearables, and automotive body modules (with the -I industrial temperature grade). The wide operating voltage and rich analog make this MCU especially suitable for mixed-signal nodes that previously required a separate ADC chip. When designing with the PIC18LF57K42-I/MV, ensure you use the latest MPLAB X IDE with the MPLAB Code Configurator (MCC) plug-in to graphically initialize peripherals and generate production-ready code. Verify the 6x6 mm UQFN PCB land pattern against Microchip application note AN2344 (QFN layout) to avoid solder voiding under the exposed pad, which is the thermal path for the device. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes that supplement the official datasheet with engineering context.

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PIC18LF57K42T-I/PT - 64MHz 8-bit XLP MCU 128KB Flash TQFP-48 | Microchip
PIC18LF57K42T-I/PT

PIC18LF57K42T-I/PT - 64MHz 8-bit XLP MCU 128KB Flash TQFP-48 | Microchip

The Microchip Technology PIC18LF57K42T-I/PT is an 8-bit PIC18 microcontroller built on the eXtreme Low-Power (XLP) platform, delivering 64 MHz CPU performance with 128 KB Flash, 8 KB SRAM, and 1 KB EEPROM in a 48-pin TQFP-EP (7x7 mm) package. It targets battery-powered and energy-harvesting embedded designs where active current consumption and sleep current must both be minimized. What is an 8-bit XLP microcontroller? An 8-bit MCU is a microprocessor with an 8-bit data path, instruction set, and register architecture, optimized for deterministic control and low cost. XLP (eXtreme Low Power) is Microchip's branding for ultra-low-power 8-bit PIC families that combine nanoWatt peripherals (e.g. deep sleep, watchdog, RTCC with current as low as hundreds of nA) with active-mode MIPS per mA efficiency. PIC18LF57K42 belongs to the PIC18 microcontroller hierarchy: 8-bit MCU -> PIC18 family -> PIC18F/LF K42 sub-family -> high pin count XLP tier. Key features include a 12-bit differential ADC with computation, multiple communication peripherals (UART, SPI, I2C), Configurable Logic Cells (CLC), Complementary Waveform Generator (CWG), and 4x 16-bit timers. The wide 1.8 V to 3.6 V supply range and low-power Sleep modes (under 1 uA typical) make this part suitable for IoT sensors and portable instrumentation. The 44 I/O pins offer generous expansion for keypad, display, and motor-control front ends. Architecturally, the device uses a Harvard RISC core with hardware multiply, 32-level hardware stack, and vectored interrupts. The CWG and PWM peripherals enable motor control or LED lighting without an external timer IC. Integrated Core Independent Peripherals (CIPs) such as CLC, NCO, and zero-cross detect allow event-driven response without CPU wake-up, supporting firmware that spends most of its time in deep sleep. Typical applications include IoT sensor nodes, battery-powered medical devices, automotive body controllers, HMI displays, smart home gateways, and small motor control boards. The XLP feature set also fits asset tracking tags, e-locks, and remote controls where coin-cell batteries must last years. When designing with this part, allocate careful pin budgeting because the TQFP-48 has 44 I/O plus dedicated OSC/VCAP/MCLR pins. Use MPLAB X IDE with the XC8 compiler and a Curiosity or Curiosity Nano development board for fastest bring-up. Decoupling: place 100 nF next to VDD/AVDD and a 10 uF bulk on the main rail. This page consolidates distributor pricing, drop-in compatible PIC18LF alternatives in the same TQFP-48 footprint, application-specific design notes, and a parametric comparison table that complements (does not replace) the Microchip datasheet. Pinout, package outline, and ordering code nomenclature follow Microchip conventions (T = tape and reel, -I = industrial -40C to +85C, /PT = TQFP-48).

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PIC18LF6310-I/PT - 8-bit MCU 40MHz 8KB Flash 64-TQFP | Microchip
PIC18LF6310-I/PT

PIC18LF6310-I/PT - 8-bit MCU 40MHz 8KB Flash 64-TQFP | Microchip

The Microchip Technology PIC18LF6310-I/PT is an 8-bit PIC18 microcontroller with 8 KB (4K x 16) Flash program memory, 768 bytes of RAM, and a maximum clock speed of 40 MHz, housed in a 64-pin TQFP (10x10 mm) package. It is part of the PIC18F6310/6410/8310/8410 family and integrates Microchip's nanoWatt XLP (eXtreme Low-Power) technology for energy-conscious embedded designs. The device operates from 2.0 V to 5.5 V on the LF silicon revision, supporting both 3.3 V and 5 V rails typical of industrial and consumer embedded systems. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (Flash/ROM), data memory (RAM), and peripherals on one die. The PIC18 family is Microchip's high-performance 8-bit line, distinguished from baseline PIC10/12/16 parts by its 16-bit instruction word, hardware multiplier, and richer peripheral set. PIC18 microcontrollers sit within the broader hierarchy of embedded controllers (8-bit MCU -> microcontroller -> semiconductor -> integrated circuit), and remain widely deployed in cost-sensitive, deterministic, real-time applications where ARM Cortex-M parts are unnecessary. Key features of the PIC18LF6310 include 8 KB Flash, 768 B RAM, 54 digital I/O pins, a 12-bit or 10-bit ADC (peripherals vary across the family), multiple timers, and standard serial interfaces (UART, SPI, I2C). The 64-TQFP (10x10 mm) package provides ample I/O count for human-machine interface (HMI), sensor aggregation, and motor-control front-ends while staying compatible with hand-solderable and reflow-friendly SMD assembly. Industrial temperature range (-40C to +85C) and Flash program memory simplify field firmware updates. Architecturally, the PIC18LF6310 uses an enhanced Harvard RISC core with a 16-bit instruction set and an 8-bit data path, achieving up to 10 MIPS at 40 MHz. nanoWatt XLP technology reduces sleep current into the nanoampere region, suiting battery-powered or energy-harvesting designs. The on-chip debugger and ICSP (In-Circuit Serial Programming) header allow firmware development without external programmers. Typical applications include industrial control panels, sensor hubs, HVAC controllers, low-power remote sensors, consumer appliances, and embedded data-acquisition modules. The wide 2.0-5.5 V supply tolerance makes the part compatible with both lithium-cell and 5 V regulated buses. When designing with this device, plan I/O assignments against the 54 available pins and verify the ADC channel count against the datasheet for the exact silicon revision. For drop-in upgrades with more memory or peripherals, the PIC18F6410-I/PT (16 KB Flash) and PIC18F8310-I/PT (extended peripheral set) share the same TQFP-64 footprint.

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PIC18LF6310T-I/PT - 8KB Flash 8-bit MCU, 64-TQFP | Microchip
PIC18LF6310T-I/PT

PIC18LF6310T-I/PT - 8KB Flash 8-bit MCU, 64-TQFP | Microchip

The Microchip Technology PIC18LF6310T-I/PT is an 8-bit PIC18 microcontroller featuring 8KB of Flash program memory (4K x 16 words), 768 bytes of RAM, and a maximum CPU clock of 40 MHz. Housed in a 64-pin TQFP (10x10 mm) package, the part is supplied on tape-and-reel for high-volume SMT assembly lines. The 'LF' prefix designates the low-voltage core variant optimized for 2.0V to 3.3V operation, while the 'F' (non-LF) counterpart targets 4.2V to 5.5V operation, allowing engineers to migrate between variants on the same PCB footprint. An 8-bit microcontroller (MCU) is a small computer-on-a-chip integrating a CPU, RAM, Flash program memory, EEPROM, timers, ADCs, and serial peripherals on a single die. Within the broader taxonomy, the PIC18LF6310 sits under: 8-bit MCU -> PIC18 family -> PIC18F6xxx 'high-pin-count' sub-family -> embedded microcontroller -> semiconductor. This hierarchy matters for designers selecting peripherals and instruction-set compatibility: PIC18 cores use an enhanced 16-bit instruction set with 8-bit data path, supporting C and assembly development under MPLAB X IDE and the XC8 compiler. Key features of the PIC18LF6310T-I/PT include 8KB self-programmable Flash with read-while-write capability, an internal 10-bit ADC, multiple 16-bit timers, enhanced CCP, USART, SPI, and I2C peripherals, an on-chip 31 kHz low-power oscillator, and nanoWatt XLP power-management modes for battery-powered designs. Industrial temperature range (-40C to +85C) and the 64-TQFP footprint make it suitable for space-constrained but I/O-rich applications. The architecture is a Harvard RISC core with 16-bit instructions and 8-bit data, single-cycle multiplication, and hardware multiply/divide support. Flash endurance is rated at 100K erase/write cycles, EEPROM at 1M cycles, and retention is specified at 40 years minimum. The nanoWatt XLP variants deliver idle currents below 1 uA, enabling multi-year battery life in duty-cycled sensor products. Typical applications include industrial control panels, white-goods user interfaces, HVAC thermostats, low-end medical instruments, automotive body and lighting subsystems, and battery-powered sensor hubs. The wide peripheral set and ample I/O also suit USB-less human-interface controllers, RFID readers, and motor-control BLDC drivers. When designing with this MCU, ensure the MCLR pin is correctly pulled-up, the Vcore decoupling (10uF + 100nF) is placed within 1 cm of the supply pins, and oscillator layout follows the recommended ground-fence pattern from the PIC18F6310 datasheet (DS39639 family reference). This page synthesizes distributor pricing, drop-in TQFP-64 alternatives, and practical firmware-bootloader guidance not found in the manufacturer datasheet alone.

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PIC18LF6390-I/PT - 8-bit PIC MCU, 8KB Flash, LCD Driver | Microchip
PIC18LF6390-I/PT

PIC18LF6390-I/PT - 8-bit PIC MCU, 8KB Flash, LCD Driver | Microchip

The Microchip Technology PIC18LF6390-I/PT is a low-voltage 8-bit PIC18 microcontroller featuring 8KB of Flash program memory, 768 bytes of SRAM, and an integrated LCD driver, housed in a 64-pin TQFP (PT) package measuring 10x10 mm. It operates at up to 40 MHz CPU clock speed and is engineered around Microchip's nanoWatt Technology for reduced power consumption in battery-driven designs. The device provides 50 general-purpose digital I/O pins, making it well-suited for human-machine interface (HMI) and instrumentation front-ends. What is an 8-bit PIC microcontroller? An 8-bit PIC MCU is a low-power microcontroller built on a RISC architecture with a wide peripheral integration that executes one byte per instruction cycle. PIC microcontrollers sit within the broader hierarchy of microcontrollers -> embedded processors -> semiconductors, and the PIC18 family is the high-end 8-bit tier offering enhanced instruction set, C-optimized architecture, and rich peripheral mix including ADC, PWM, and communication interfaces. The PIC18LF6390 integrates peripherals including Brown-out Detect/Reset, High/Low-Voltage Detect (HLVD), Power-on Reset (POR), Pulse-Width Modulation (PWM) outputs, Watchdog Timer (WDT), and an integrated LCD driver capable of directly biasing segment LCD glass. Communication interfaces include I2C, SPI, and an enhanced UART/USART, enabling connectivity to sensors, displays, and host processors. The LF voltage variant supports operation across 2.0V to 5.5V, suitable for battery-powered or 3.3V systems. This part belongs to Microchip's PIC18F family fabricated on an enhanced FLASH architecture with 16-bit wide instructions and 8-bit data path. The integrated LCD controller with charge pump eliminates the need for external bias generation, reducing BOM cost and PCB area. The nanoWatt Technology feature set includes multiple idle and sleep modes that drop current consumption to microampere levels. Typical applications include industrial control panels with LCD readouts, medical devices requiring segment displays, consumer appliances with user interfaces, and metering/measurement equipment. The wide operating temperature range of -40C to +85C (industrial grade, denoted by the -I suffix) supports deployment in industrial environments. When designing with this MCU, ensure decoupling capacitors are placed close to VDD/VSS pins and that the LCD bias network matches the connected glass specifications. Designers should also verify the device's pin count (64 TQFP) provides sufficient I/O for their application, as this is a key constraint when migrating between PIC18 family members. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on the manufacturer datasheet, helping engineers evaluate the PIC18LF6390-I/PT for production designs.

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PIC18LF6390T-I/PT - 8-bit 40MHz 8KB Flash LCD MCU | Microchip
PIC18LF6390T-I/PT

PIC18LF6390T-I/PT - 8-bit 40MHz 8KB Flash LCD MCU | Microchip

The Microchip PIC18LF6390T-I/PT is a low-power 8-bit PIC18 microcontroller integrating an LCD segment driver, delivering 40 MIPS performance from a 40 MHz internal oscillator in a 64-pin TQFP (10x10 mm) package. It features 8 KB of Flash program memory (4K x 16), 768 bytes of RAM, and 256 bytes of EEPROM, with on-chip nanoWatt power-management circuitry that supports run, idle and sleep modes. The device operates from 2.0 V to 5.5 V across the -40C to +85C industrial temperature range, making it compatible with both 3.3 V and 5 V system rails. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, working RAM, and a rich set of peripherals. The PIC18LF6390 belongs to the broader PIC18F family of 8-bit RISC microcontrollers from Microchip, which sits inside the larger category of embedded controllers, microcontrollers, and ultimately processors and semiconductors. The "LF" suffix denotes the low-voltage extended-range variant; the "T" suffix denotes tape-and-reel packaging; and the "I/PT" suffix denotes the industrial temperature grade in a TQFP (PT) package. Key differentiating features include an on-chip LCD driver capable of driving up to 192 segments (4 common x 48 segments), a 10-bit Analog-to-Digital Converter (ADC) with up to 12 channels, two analog comparators, a 16-bit timer/counter, two 8-bit timers, a Hardware RTCC, master I2C/SPI/UART (EUSART) peripherals, and a parallel slave port. The nanoWatt technology lowers dynamic power by gating unused peripherals and clock domains. The PIC18LF6390 employs an Enhanced Harvard RISC architecture with separate program and data buses, a 16-bit instruction word, and 8-bit data path; instruction execution takes one instruction cycle per 4 oscillator clocks, giving 10 MIPS at 10 MHz or 40 MIPS at 40 MHz. A 31-level hardware stack, hardware multiplier, and 32 kHz secondary oscillator for the RTCC simplify low-power designs. Typical applications include battery-powered thermostats, multi-meter instrumentation with segment displays, home appliance user interfaces, medical glucose and patient monitors, point-of-sale terminals, and industrial control panels with integrated LCD glass. The wide 2.0 V to 5.5 V operating range allows the same part to be designed into 2-cell alkaline, single-cell Li-ion, or regulated 5 V systems without hardware changes. When designing with this part, ensure that segment and common pin assignments stay within the LCD driver's 192-segment budget, reserve adequate Vdd/Vss decoupling near the analog AVdd pin, and configure the RTCC to run from the 32 kHz secondary oscillator for minimum sleep-mode current. The 64-pin TQFP provides sufficient I/O for keypad scanning, sensor input, and LCD bias generation on a single chip. This page synthesizes distributor pricing, drop-in same-family and cross-brand alternatives, comparison data, and practical design notes beyond what the manufacturer datasheet alone provides, supporting engineers evaluating this part for new designs or as a substitute for legacy stock.

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PIC18LF6393-I/PT - 8KB Flash 8-bit MCU w/ LCD Driver TQFP-64
PIC18LF6393-I/PT

PIC18LF6393-I/PT - 8KB Flash 8-bit MCU w/ LCD Driver TQFP-64

The Microchip Technology PIC18LF6393-I/PT is an 8-bit PIC18-family microcontroller with integrated LCD driver, 8KB of Flash program memory (4K x 16), 768 bytes of RAM, and a 12-channel 12-bit Analog-to-Digital converter (ADC). It is housed in a 64-pin TQFP (10x10 mm, 1.0 mm pitch, lead-free) industrial-temperature package and operates from 4.2 V to 5.5 V at up to 40 MHz clock speed. The PIC18LF6393 belongs to the PIC18F family of 8-bit microcontrollers, which use Microchip's enhanced RISC architecture. In the wider semiconductor taxonomy, PIC18F MCUs sit under the broader categories: 8-bit microcontroller -> microcontroller unit (MCU) -> embedded controller -> semiconductor IC. The "LF" prefix designates the low-voltage, extended-range variant supporting 2.0 V to 5.5 V operation, while the integrated LCD driver reduces BOM count in display-equipped products. Key features include 54 digital I/O ports, three serial communication peripherals (I2C, SPI, and UART/USART), 128-segment LCD driver support, 12-bit ADC resolution, and a Flash-based program memory that supports in-circuit serial programming (ICSP). Industrial temperature range (-40C to +85C) makes the part suitable for factory-floor and outdoor equipment. Typical applications include white goods and home appliances with segment LCD displays, medical instrumentation front panels, industrial control HMIs, automotive dashboard clusters, point-of-sale terminals, and metering equipment. The integrated 128-segment LCD controller eliminates the need for an external driver IC in human-machine interface designs. When designing with this device, allocate one of the available timer modules for the LCD charge-pump reference if contrast stability is required. Designers migrating from PIC18F6393 to the LF variant gain lower-voltage operation at the cost of a slightly reduced maximum clock frequency. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC18LF6490-I/PT - 16KB Flash 8-bit MCU with LCD Driver | Microchip
PIC18LF6490-I/PT

PIC18LF6490-I/PT - 16KB Flash 8-bit MCU with LCD Driver | Microchip

The Microchip Technology PIC18LF6490-I/PT is a low-power 8-bit PIC18 microcontroller with 16 KB Flash program memory, 768 bytes RAM, and an integrated LCD driver, housed in a 64-pin TQFP (PT) 10x10 mm package. It operates from 2.0V to 5.5V and runs at up to 40 MHz, providing ample performance for human-machine interface and metering applications. The "LF" prefix denotes the low-voltage, nanoWatt technology variant optimized for battery-backed designs. A PIC microcontroller (MCU) is a compact programmable processor that integrates a CPU core, Flash program memory, SRAM, peripherals, and I/O into a single chip. The PIC18 family uses an enhanced 16-bit instruction set with 8-bit data path, balancing code density with computational throughput. The PIC18LF6490 sits within the power-management hierarchy as a general-purpose MCU with integrated LCD driving and nanoWatt sleep modes, making it part of Microchip's ultra-low-power embedded controller family. Key features include an integrated LCD driver supporting up to 48 segments with software-selectable multiplexing (static, 1/2, 1/3, 1/4) and bias configurations (static, 1/2, 1/3); nanoWatt power-management with multiple idle and sleep modes; 68 I/O pins; and a 10-bit ADC with up to 12 channels. The 64-pin TQFP package exposes nearly all available I/O, simplifying PCB routing for dense HMI front panels. Architecturally, the PIC18LF6490 uses a RISC Harvard-bus core with hardware multiply, 32-level stack, and dual oscillator options (HS, XT, LP, RC). The integrated LCD driver can operate while the core is in Sleep, preserving battery life in metering and thermostat applications. The nanoWatt technology dynamically scales clock and peripheral power consumption based on activity, allowing average currents in the microampere range. Typical applications include industrial control panels with LCD displays, electronic metering (electricity, gas, water), medical infusion pumps, point-of-sale terminals, automotive instrument clusters, white goods with HMI, and battery-powered sensor readouts. Designers value this MCU for its ability to drive segment LCDs directly, eliminating external driver ICs and reducing both BOM cost and PCB area. When designing with this part, ensure the supply rail includes a 0.1 uF decoupling capacitor within 5 mm of VDD, and configure the LCD charge-pump or resistor-ladder bias network per the manufacturer's reference design. The wide operating voltage range allows direct connection to 3.3V or 5V rails, simplifying integration into mixed-voltage systems. This page synthesizes distributor pricing across DigiKey, Mouser and Octopart, pin-compatible drop-in alternatives from the PIC18F family, and practical design notes not aggregated elsewhere on the open web.

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PIC18LF6520-I/PT - 8-Bit MCU, 32KB Flash, 64-TQFP | Microchip
PIC18LF6520-I/PT

PIC18LF6520-I/PT - 8-Bit MCU, 32KB Flash, 64-TQFP | Microchip

The Microchip Technology PIC18LF6520-I/PT is an 8-bit PIC® RISC microcontroller featuring 32KB of Flash program memory, 2KB of RAM, and 52 digital I/O pins, housed in a 64-pin TQFP package (10x10 mm). It operates at up to 40 MHz, delivering up to 10 MIPS of processing throughput. The device supports a wide operating voltage range from 2.0 V to 5.5 V, making it suitable for both 3.3 V and 5 V system designs. An 8-bit MCU (microcontroller unit) is a single-chip computer integrating a CPU, memory, and peripherals. Within the broader taxonomy, this places the PIC18LF6520 in the PIC® 18F family -> 8-bit microcontroller -> microcontroller unit (MCU) -> embedded controller -> semiconductor IC. The PIC® architecture uses a RISC (Reduced Instruction Set Computer) instruction set with Harvard bus topology, separating program and data memory for predictable instruction timing. Key features include 32KB Flash program memory (16K x 16 words), 2KB SRAM data memory, 1KB EEPROM data memory, 52 I/O pins, a 10-bit Analog-to-Digital Converter (ADC) with up to 16 input channels, two USART modules for serial communication, MSSP (Master Synchronous Serial Port) for SPI/I2C, two CCP/ECCP modules, four timers, and a parallel slave port for external memory interfacing. The PIC18LF6520 architecture uses a 16-bit instruction word with an 8-bit data path, allowing dense code storage and efficient C-compiler utilization. The 'LF' variant denotes an extended voltage (2.0-5.5 V) core, and the 'I' suffix indicates an industrial temperature range of -40°C to +85°C. The 64-pin TQFP package offers ample I/O for human-machine interfaces, motor control, and instrumentation. Typical applications include industrial control systems, medical instrumentation, automotive body electronics, USB peripherals (with external transceiver), sensor hub processors, and embedded graphical user interfaces. The 52 I/O pins and rich peripheral set suit designs that demand multiple communication buses and analog sensor inputs. When designing with this MCU, ensure the configuration bits are correctly set for oscillator selection and watchdog timer behavior. The ICSP (In-Circuit Serial Programming) interface requires careful trace routing to avoid coupling noise into adjacent analog inputs. This page synthesizes distributor pricing, drop-in compatible alternatives, application guidance, and engineering design notes that go beyond what the manufacturer datasheet alone provides.

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PIC18LF6520T-I/PT - 40MHz 8-bit MCU 32KB Flash 64-TQFP | Microchip
PIC18LF6520T-I/PT

PIC18LF6520T-I/PT - 40MHz 8-bit MCU 32KB Flash 64-TQFP | Microchip

The Microchip Technology PIC18LF6520T-I/PT is an 8-bit RISC PIC microcontroller running at 40 MHz (10 MIPS) with 32 KB Flash program memory (16K x 16), 2 KB SRAM and 1 KB EEPROM, packaged in a 64-pin 10x10 mm TQFP with 54 digital I/O lines. It is the tape-and-reel, industrial temperature (-40C to +85C) version of the PIC18LF6520 family, suitable for automated high-volume assembly. An 8-bit microcontroller (MCU) is a single-chip processor with an 8-bit data path, on-board Flash program memory, RAM, and a rich set of peripherals (timers, ADC, UART, I2C, SPI, PWM). PIC18F/LF-series MCUs sit at the upper end of Microchip's 8-bit portfolio (PIC16 -> PIC18 -> PIC32), delivering 10 MIPS performance with Harvard RISC architecture and 16-bit instructions. PIC18LF variants support a wide 2.0V-5.5V operating range for low-voltage and battery-powered designs. Key features of the PIC18LF6520T-I/PT include: 40 MHz maximum clock (10 MIPS), 32 KB self-programmable Flash, 2 KB RAM, 1 KB data EEPROM, 54 I/O pins with individual direction control, multiple serial interfaces (2x USART, MSSP for SPI/I2C), two 8-bit and three 16-bit timers, 10-bit ADC up to 15 channels, two analog comparators, dual capture/compare/PWM modules, and a hardware 8x8 multiplier. The wide 2.0V-5.5V operating range enables single-rail designs from two AA cells to 5V industrial buses. Architecturally, the device uses Microchip's enhanced Harvard architecture with separate program and data buses, 32-level deep hardware stack, and a priority-interrupt controller supporting both legacy PIC16/PIC17 software migration and native PIC18 C development under MPLAB X with XC8. The 'LF' suffix designates the wide-voltage (2.0V-5.5V) variant, while 'T' in the MPN denotes tape-and-reel packaging and 'I' denotes industrial temperature grade. Typical applications include industrial control panels, HVAC controllers, motor control driver boards, low-power sensor hubs, USB-to-UART bridges, and home appliances. Designers benefit from decades of PIC18 code compatibility and broad third-party library support. When designing with this part, verify that your VDD rail stays within 2.0V-5.5V and use the internal 8 MHz RC oscillator or an external crystal up to 40 MHz depending on MIPS requirements. The 64-TQFP package provides ample I/O for parallel bus or matrix keypad interfaces. This page synthesizes distributor pricing, drop-in alternatives and practical design notes not found in the bare manufacturer datasheet.

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PIC18LF6525-I/PT - 8-bit MCU 48KB Flash 40MHz 64-TQFP | Microchip
PIC18LF6525-I/PT

PIC18LF6525-I/PT - 8-bit MCU 48KB Flash 40MHz 64-TQFP | Microchip

The Microchip PIC18LF6525-I/PT is a high-performance 8-bit RISC microcontroller with 48 KB of enhanced Flash program memory, 3,840 bytes of RAM, and 1 KB of EEPROM, housed in a 64-pin TQFP (PT) package measuring 10x10 mm. It operates at up to 40 MHz clock speed from a 2.0V to 5.5V supply and integrates a 10-bit A/D converter, ECAN module, and 52 digital I/O pins for embedded designs requiring rich connectivity and analog input. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, non-volatile program memory, peripherals, and I/O on one die. The PIC18 family uses a Harvard RISC architecture with separate program and data buses, 16-bit opcodes, and a 31-level hardware stack, sitting in the broader taxonomy: PIC18 -> PIC microcontroller -> 8-bit MCU -> microcontroller -> semiconductor -> integrated circuit. This 'LF' variant is the eXtreme Low Power family tuned for low-voltage battery applications from 2.0 V upward. Key features include 48 KB Flash (24K x 16), 3,840 bytes data RAM, 1 KB EEPROM, hardware ECAN controller, 10-bit A/D with multiple channels, two USART modules, MSSP/SPI/I2C peripherals, and four timer modules. The 64-pin TQFP package gives the device 52 usable I/O lines, suiting dense I/O-bound applications like industrial control panels and CAN nodes. NanoWatt power management offers multiple idle, sleep, and run modes with on-the-fly oscillator switching. The PIC18LF6525-I/PT uses a 16-bit instruction word with an 8-bit data path, providing C-compiler-friendly operation and deterministic interrupt response. Its enhanced Flash supports self-programming under firmware control, enabling in-field bootloader updates. The integrated ECAN module implements CAN 2.0B active/passive with three transmit and two receive buffers, eliminating an external CAN controller on CAN nodes. Typical applications include industrial CAN-bus sensor nodes, automotive body and climate controllers, low-power metering, embedded control panels, and ECAN-connected motor drives. The wide 2.0-5.5V supply range and low-power modes make it well-suited to 3.3V and 5V mixed-rail systems as well as battery-powered instrumentation. When designing, ensure the decoupling capacitor network follows Microchip's recommended 0.1 uF plus 10 uF bulk placement, and review the oscillator configuration bits for the chosen crystal or resonator. Program memory endurance is rated 100K erase/write cycles minimum. This page combines manufacturer datasheet data, current distributor pricing, drop-in alternatives, and practical design notes that are not assembled on any single manufacturer page.

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PIC18LF6525T-I/PT - 8-Bit 40MHz MCU, 48KB Flash, TQFP-64 | Microchip
PIC18LF6525T-I/PT

PIC18LF6525T-I/PT - 8-Bit 40MHz MCU, 48KB Flash, TQFP-64 | Microchip

The Microchip Technology PIC18LF6525T-I/PT is an 8-bit RISC microcontroller from the PIC18F family, featuring a 40 MHz core, 48 KB of Flash program memory (24K x 16 words), 3.8 KB of SRAM (3840 bytes), and 1 KB of EEPROM, packaged in a 64-pin TQFP (10 x 10 mm) surface-mount form factor. The "LF" prefix denotes the low-voltage F-variant, supporting an extended supply voltage range of 2.0 V to 5.5 V, while the "T" suffix indicates Tape-and-Reel packaging and the "I" suffix designates the industrial temperature grade (-40C to +85C). The /PT package code denotes the TQFP-64 footprint. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (Flash/ROM), data memory (RAM), non-volatile storage (EEPROM), and a rich set of peripherals on one die. Within Microchip's taxonomy, the PIC18F family sits above the baseline PIC10/12/16 families in terms of performance and peripheral count - 8-bit MCU -> microcontroller -> embedded controller -> semiconductor. PIC18F parts add hardware multiply, larger linear addressing, and C-friendly architecture optimized for mixed C/assembly firmware development. Key features of the PIC18LF6525 include 54 digital I/O lines, up to twelve 10-bit ADC channels, two analog comparators, two USART modules, one MSSP (I2C/SPI) peripheral, two Capture/Compare/PWM (CCP) modules plus one Enhanced CCP (ECCP), a 16-bit timer with three 8-bit timers, an RTCC, and a parallel slave port for external bus expansion. The on-chip 10-bit ADC can reach 100 ksps and is supported by up to twelve input channels, which is sufficient for sensor interfaces in industrial and instrumentation systems. Architecturally, the PIC18LF6525 uses a Harvard-class 8-bit RISC core with a 16-bit instruction word, an 8-level hardware stack, and a 31-level software-managed stack for high-level language support. The 4.2 V to 5.5 V range quoted on distributor pages reflects the parametric ADC specification; the device itself supports a wider operating voltage range down to 2.0 V. Low-power nanoWatt technology features include multiple idle and sleep modes, an ultra-low-power wake-up timer, and software-controlled oscillator switching. Typical applications for the PIC18LF6525T-I/PT include industrial automation controllers, building HVAC and access-control panels, instrumentation front-ends with LCD/keypad interfaces, automotive body and chassis subsystems (non-safety), and consumer appliances requiring moderate Flash headroom (48 KB) and significant I/O count (54 lines). The combination of an 8-bit core with strong peripherals makes it well-suited for legacy firmware migration onto a stable, long-life Microchip platform. Designers should note that the LF variants add voltage-minimum operation down to 2.0 V, which is essential for battery-backed designs; when migrating between PIC18F6525 and PIC18LF6525 always confirm the brown-out reset voltage and the ADC reference selection. The parallel slave port allows direct connection to an external host CPU for use as a peripheral co-processor, and the large pin count (TQFP-64) provides ample I/O for keypad scanning and character LCD drives.

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PIC18LF6527T-I/PT - 48KB Flash 8-bit MCU with ECAN | Microchip
PIC18LF6527T-I/PT

PIC18LF6527T-I/PT - 48KB Flash 8-bit MCU with ECAN | Microchip

The Microchip Technology PIC18LF6527T-I/PT is a high-performance 8-bit RISC flash microcontroller with integrated ECAN and nanoWatt eXtreme Low Power technology, delivering 48KB of program Flash plus 4KB of RAM in a 64-pin TQFP (10x10 mm) tape-and-reel package. It is built around the PIC18 enhanced Harvard architecture with a 16-bit instruction word and executes most instructions in one cycle for an effective 40 MHz / 10 MIPS throughput at 4V. An 8-bit microcontroller is a single-chip computer built around an 8-bit data path, integrating CPU core, program memory (Flash/ROM), data memory (RAM), non-volatile EEPROM, timers, communications peripherals, ADC, and general-purpose I/O onto one silicon die. The PIC18 family belongs to the larger taxonomy: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor IC. Within this hierarchy the LF sub-family targets low-voltage (2.0V-5.5V) battery-powered designs where nanoWatt sleep modes and active current management are critical. Key features of the PIC18LF6527 include 48KB (24K x 16) of self-programmable Flash, 4KB RAM, 1KB EEPROM, 70 digital I/O pins, a 12-channel 10-bit ADC with auto-acquisition, two ECAN modules, two MSSP (I2C/SPI) ports, two USART (LIN-capable) ports, nine programmable timers, dual analog comparators, a CTMU for capacitive touch or mTouch sensing, and nanoWatt power management that drops current draw to the nanoamp range in sleep. Architecture-wise the device uses a 16-bit wide instruction word fetched from Flash while data SRAM is byte-addressable, and the PIC18LF6527 is pin-compatible with the PIC18F6527 F-version (3.0V-5.5V) as well as the broader PIC18LF65xx/66xx family, enabling firmware and PCB reuse across voltage profiles. Hardware multiplier and multiple interrupt sources support DSP-style math and real-time control loops. Typical applications include industrial instrumentation panels, TCP/IP-enabled embedded sensor nodes, HVAC and building automation, automotive LIN/CAN nodes, battery-powered metering, capacitive touch human-machine interfaces, and large low-power connectivity designs that benefit from the four serial ports (2x synchronous, 2x asynchronous). When designing with this part, populate the CONFIG fuse register correctly for oscillator mode, watchdog, brown-out and code protection before code execution; confirm the TQFP-64 land pattern allows proper thermal relief, and confirm the 64-pin pinout matches the rest of the 65xx/66xx pin-compatible variants if you plan to migrate between F (5V) and LF (low-voltage) versions. This page synthesizes distributor pricing, drop-in PIC18 family alternatives, and practical design notes that complement the manufacturer datasheet.

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PIC18LF6585-I/L - 8-bit MCU, 48KB Flash, 40MHz, 52 I/O | Microchip
PIC18LF6585-I/L

PIC18LF6585-I/L - 8-bit MCU, 48KB Flash, 40MHz, 52 I/O | Microchip

The Microchip Technology PIC18LF6585-I/L is an 8-bit RISC microcontroller from the PIC18F family, featuring 48KB of Flash program memory (24K x 16), 3328 bytes of RAM, and 52 digital I/O pins, all housed in a 68-pin PLCC (J-Lead) package. It operates at a maximum clock frequency of 40 MHz, delivers up to 10 MIPS throughput, and integrates a 12-bit A/D converter with up to 12 channels, plus a hardware ECAN module for automotive and industrial networking. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, data RAM, and a rich set of on-chip peripherals into a single IC. Within the broader semiconductor taxonomy, an MCU belongs to the category of embedded processors (alongside DSPs, FPGAs, and microprocessors) and is the workhorse of real-time control applications. The PIC18F series uses an enhanced Harvard architecture with separate code and data buses, giving it deterministic instruction execution ideal for interrupt-driven control loops. The 'LF' prefix designates the low-voltage variant supporting operation down to 2.0V, while the 'F' versions require 4.2V minimum. Key features of the PIC18LF6585-I/L include 1024 bytes of EEPROM data memory, an ECAN controller that supports CAN 2.0B active with prioritized message handling, a USART with LIN master/slave support, an MSSP for SPI and I2C, four timer modules (Timer0/1/2/3), a 10-bit PWM module, and nanoWatt power management for sleep-mode operation. The 'I' suffix indicates the industrial operating temperature range of -40C to +85C, making it suitable for non-automotive harsh environments. Architecturally, the PIC18LF6585 employs Microchip's enhanced 8-bit core with a 16-bit instruction word, an 8-level hardware stack, and a peripheral oscillator that allows independent timer operation from the main system clock. Its wide operating voltage range (2.0V to 5.5V) and low-power modes support battery-backed applications, while the ECAN module hardware-filters incoming frames to reduce CPU load in networked designs. Typical applications include industrial CAN-bus node controllers, HVAC control boards, building automation gateways, motor control front-ends, point-of-sale terminals, and embedded sensor hubs. Its 52 I/O pins provide ample headroom for keypad scanning, LCD driving, and parallel sensor aggregation. When designing with this device, ensure your MPLAB X IDE project selects the PIC18LF6585 device ID and confirm the 68-pin PLCC footprint matches your PCB land pattern. ECAN bus termination, oscillator stability, and Brown-Out Reset (BOR) configuration must be reviewed before firmware bring-up. This page synthesizes distributor pricing, same-brand drop-in alternatives from the PIC18 family, and practical design notes not consolidated in the manufacturer datasheet.

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PIC18LF6585-I/PT - 8-Bit 40MHz MCU 48KB Flash ECAN | Microchip
PIC18LF6585-I/PT

PIC18LF6585-I/PT - 8-Bit 40MHz MCU 48KB Flash ECAN | Microchip

The Microchip Technology PIC18LF6585-I/PT is a high-performance 8-bit microcontroller from the PIC18F family featuring integrated Enhanced CAN (ECAN) and eXtreme Low Power consumption, supplied in a 64-pin TQFP (PT) 10x10 mm package. The LF suffix denotes the low-voltage F-variant core that operates across 2.0V to 3.3V, making it tailored for battery-powered and portable designs. A microcontroller (MCU) is a single-chip computer containing a processor core, program memory (Flash), data memory (RAM), and a rich set of peripheral blocks (timers, ADC, communication controllers, I/O). The PIC18F family sits in the 8-bit RISC tier of Microchip's portfolio and is widely adopted in automotive node, industrial control, and consumer applications where deterministic behavior and long product lifetimes matter. Key features of the PIC18LF6585-I/PT include 48 KB of Flash program memory organized as 24K x 16 words, 3,328 bytes of RAM, an 8-channel 10-bit ADC, two analog comparators, two CCP modules, an Enhanced CAN 2.0B controller, and up to 52 digital I/O pins. The CPU core runs up to 40 MHz at 3.3V, with on-chip oscillator options and four programmable edge-triggered interrupt sources. The integrated ECAN peripheral supports CAN 2.0B active/passive and listens-only modes, device net filtering, and bit rates up to 1 Mbps. The architecture is built around a Harvard RISC core with a 16-bit instruction word, an 8-bit data path, hardware multiply, and a vectored interrupt controller. The instruction pipeline and 32-level hardware stack deliver deterministic interrupt latency suitable for real-time CAN and control loops. Typical applications include CAN-based industrial automation nodes, automotive body and chassis ECUs (non-safety critical), building automation HVAC controllers, sensor aggregation hubs, and low-power remote telemetry units. When designing with this part, pay attention to the decoupling network around VDD/VSS pairs, route the ECAN TX/RX lines as a matched differential pair, and program the CONFIG words at the top of Flash to lock oscillator, watchdog, and brown-out settings.

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PIC18LF6585T-I/L - 8-bit 40MHz 48KB Flash MCU 68-PLCC | Microchip
PIC18LF6585T-I/L

PIC18LF6585T-I/L - 8-bit 40MHz 48KB Flash MCU 68-PLCC | Microchip

The Microchip Technology PIC18LF6585T-I/L is an 8-bit PIC18F-series microcontroller running at up to 40 MHz, integrating 48 KB of Flash program memory (24K x 16), 3.25 KB (3328 bytes) of RAM, and 1 KB of EEPROM in a 68-pin PLCC (J-lead, 24.23 x 24.23 mm) package. It is part of the PIC18LFxx family of low-voltage (2.0V-5.5V) microcontrollers with 52 digital I/O pins and an on-chip 12-bit ADC, making it a long-standing workhorse for embedded control and CAN-enabled applications. A microcontroller (MCU) is a single-chip computer containing a CPU core, non-volatile program memory (Flash/ROM), volatile data memory (RAM), and a rich set of peripherals (ADC, timers, communication ports). The PIC18LF6585 belongs to the PIC18F family -> 8-bit MCU -> microcontroller -> embedded computing hierarchy, with Microchip's enhanced Harvard RISC architecture offering 16-bit instructions and deterministic interrupt latency. Key features include the enhanced CAN 2.0B controller, a 10-bit/12-bit ADC with up to 12 channels, four timer modules (Timer0-Timer3), two capture/compare/PWM (CCP) modules, an enhanced CCP (ECCP), a USART with IrDA, an MSSP for SPI/I2C, and a parallel slave port. The LF variant extends supply voltage operation down to 2.0V, making it suitable for battery-powered designs, while the 40 MHz oscillator enables instruction execution at 10 MIPS. Typical applications include industrial automation and process control, automotive body and chassis subsystems (LIN/CAN nodes), appliance controllers, HVAC equipment, instrumentation and data loggers, USB/serial converters, and general-purpose embedded platforms that need more I/O and CAN than smaller 28/40-pin PIC18 parts can offer. When designing with this part, observe the maximum 40 MHz Fosc at 4.2-5.5V and derate to 10 MHz at 2.0V. The 68-pin PLCC is a through-hole-friendly surface-mount package with J-leads - well suited to sockets, prototyping, and legacy board designs where pin replacement may be required. This page synthesizes distributor pricing, drop-in alternatives (including same-family PIC18F6585 variants), and practical design notes not found in the manufacturer datasheet alone.

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PIC18LF6585T-I/PT - 8-Bit 40MHz 48KB Flash MCU 64-TQFP | Microchip
PIC18LF6585T-I/PT

PIC18LF6585T-I/PT - 8-Bit 40MHz 48KB Flash MCU 64-TQFP | Microchip

The Microchip Technology PIC18LF6585T-I/PT is an 8-bit PIC18F-family microcontroller with a 40 MHz core, 48 KB of Flash program memory (24K x 16), 3.25 KB of SRAM, and 1 KB of EEPROM, packaged in a 64-pin TQFP (10x10 mm, PT suffix) on tape-and-reel. It integrates an Enhanced CAN (ECAN) module, a 10-bit A/D converter with up to 12 input channels, and a 52 I/O pin count supporting most industrial and automotive body-electronics interfaces. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), data memory (RAM), and a configurable set of peripherals (timers, ADC, communication controllers, I/O). The PIC18 family is Microchip's 8-bit high-performance architecture, sitting between the baseline PIC10/12/16 families and the 16-bit dsPIC/PIC24 families in the company's embedded-control hierarchy. LF variants run at lower core voltages (typically 2.0-3.6 V) and target low-power and battery-backed designs. Key features include 40 MHz maximum clock, 16-bit wide instruction word, 1024 bytes of EEPROM, ECAN 2.0B controller, up to 12-channel 10-bit ADC, two USART modules, MSSP (SPI/I2C), two CCP and one ECCP modules, four timers, and an industrial-grade operating temperature of -40C to +85C. The wide memory map (24K x 16 Flash) supports moderately complex state machines and CAN-based protocol stacks. The PIC18LF6585T-I/PT's nanoWatt Technology, idle/sleep modes with multiple wake-up sources, and on-board ECAN controller make it well-suited for power-conscious, networked embedded nodes. The architecture is a Harvard-design modified RISC core with 16-bit instructions and 8-bit data path, providing deterministic interrupt latency for real-time control loops. Typical applications include industrial automation and CAN-bus nodes, automotive body-electronics ECUs, HVAC and building-control controllers, motor control front-ends, and sensor/data-acquisition subsystems. The combination of 48 KB Flash and 3.25 KB RAM is sufficient for CANopen, DeviceNet, and J1939 protocol stacks. When designing with this device, budget oscillator start-up time (typically 1024 Tosc) before relying on timing-critical peripherals, and use Microchip's MPLAB X IDE with the free XC8 compiler for code generation. Decoupling: place a 100 nF capacitor on each VDD pin and a bulk 10 uF on the analog AVDD rail. This page synthesizes XAIPART distributor pricing, same-family drop-in alternatives, and practical design notes drawn from Microchip's PIC18F6680/8585/6685 family datasheet, going beyond raw repackaging of the datasheet.

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PIC18LF65K40-E/MR - 8-Bit 64MHz XLP MCU, 32KB Flash | Microchip
PIC18LF65K40-E/MR

PIC18LF65K40-E/MR - 8-Bit 64MHz XLP MCU, 32KB Flash | Microchip

The Microchip Technology PIC18LF65K40-E/MR is an 8-bit PIC microcontroller from the PIC18 XLP (eXtreme Low Power) 18K family, featuring a 64MHz CPU, 32KB (16K x 16) of Flash program memory, and a 64-pin VQFN (9x9) package with exposed pad (MR). The 'LF' suffix denotes the low-voltage variant supporting 1.8V to 3.6V operation, while the 'E' suffix indicates the Extended temperature grade (-40C to +125C). An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (Flash/EEPROM/RAM), and configurable peripherals on a single silicon die. PIC18 microcontrollers are mid-range 8-bit MCUs from Microchip that balance low power, deterministic performance, and rich peripheral integration. They sit within the broader hierarchy of MCU -> microcontroller -> embedded processor -> semiconductor, and the XLP sub-family targets battery-powered and energy-harvesting applications through aggressive low-power modes and nanoWatt technology. Key features of the PIC18LF65K40 include Core Independent Peripherals such as the Configurable Logic Cell (CLC), Complementary Waveform Generator (CWG), and Windowed Watchdog Timer (WWDT). The device integrates ECAN for industrial networking, a 10-bit ADC with up to 10 channels, 8-bit DAC, comparators, PWM, SMT (Signal Measurement Timer), and Peripheral Pin Select (PPS) for flexible signal routing. Memory comprises 32KB Flash, 2KB RAM, and 256 bytes of EEPROM. The 64-pin VQFN package with 9x9mm body and exposed thermal pad supports high-pin-count applications while enabling surface-mount assembly. The architecture uses an enhanced Harvard structure with separate program and data buses, allowing simultaneous instruction fetch and data access for sustained throughput. The integrated nanoWatt XLP technology provides ultra-low sleep currents suitable for always-on sensor nodes and IoT edge devices. Hardware CRC, Memory Scan, Zero-Cross Detect, and Hardware CVD (Capacitive Voltage Divider) further reduce host CPU overhead. Typical applications include industrial sensor interfaces with ECAN connectivity, low-power IoT edge nodes, consumer appliance control panels, building automation, automotive body and interior modules, and battery-powered instrumentation. The wide 1.8V to 3.6V range allows direct connection to a single Li-ion cell or 2x AA batteries. When designing with this device, prioritize peripheral pin assignment early because the PPS feature must be configured before first use. Place a 100nF decoupling capacitor on each VDD/VSS pair and ensure the exposed thermal pad is soldered to a sufficiently large copper pour for thermal dissipation. The ECAN module requires an external transceiver for physical bus connection.

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PIC18LF65K40-E/PT - 64MHz 8-bit XLP MCU, 32KB Flash | Microchip
PIC18LF65K40-E/PT

PIC18LF65K40-E/PT - 64MHz 8-bit XLP MCU, 32KB Flash | Microchip

The Microchip Technology PIC18LF65K40-E/PT is a high-performance 8-bit PIC18 microcontroller with Integrated ECAN, eXtreme Low Power (XLP) technology, and 32 KB Flash, 2 KB RAM, 256 B EEPROM, operating up to 64 MHz in a 64-pin TQFP (10x10 mm) package. It supports a wide 1.8 V to 5.5 V operating voltage range, includes a 10-bit ADC with Computation (ADC2), a 5-bit DAC, comparators, PWM, CCP, CWG, HLT, WWDT, SCAN/CRC, ZCD, PPS, EUSART, and SPI/I2C peripherals for general-purpose and low-power embedded designs. An 8-bit microcontroller (MCU) is a single-chip computer based on an 8-bit data bus architecture, integrating a CPU, memory, and peripherals into one package. The PIC18LF family sits within Microchip's 8-bit PIC hierarchy: PIC18 -> PIC18F (Flash) / PIC18LF (low-voltage Flash) -> 8-bit PIC MCU -> Microcontroller -> Integrated Circuit. The 'LF' prefix denotes low-voltage operation (down to 1.8 V) suited for battery-powered and energy-harvesting applications, while XLP technology minimizes sleep current for ultra-low standby power. Key features of the PIC18LF65K40 include Core Independent Peripherals (CWG, NCO, CLC) that offload tasks from the CPU, an IDLE/DOZE/PMD power management block, hardware CRC/SCAN for memory integrity, and Peripheral Pin Select (PPS) for flexible signal routing. The integrated ECAN module and dual EUSART enable robust wired communication for industrial networking, while the 5-bit DAC and zero-crossing detector (ZCD) simplify analog control loops without external components. The architecture combines a RISC Harvard-bus CPU with hardware multiply and a 31-level interrupt vector table, giving deterministic real-time response. The 64-pin TQFP package offers ample I/O (up to 60 GPIO) while keeping the board footprint compact at 10x10 mm with 0.5 mm pitch. ECC Flash and RAM support data retention and resilience against soft errors for industrial control, sensor hubs, and HMI applications. Typical applications include industrial control and automation, automotive body and sensor nodes, low-power IoT sensor nodes, HMI/keypad controllers, and consumer electronics with touch/proximity sensing. The wide 1.8 V-5.5 V supply allows direct Li-ion battery operation without external regulation, while 5 V tolerance on digital I/O simplifies interfacing to legacy 5 V logic. When designing with this MCU, plan for an external decoupling network of 100 nF and 10 uF near VDD pins, route the analog AVSS/AVDD pair separately from digital supplies, and use the PPS feature to remap peripheral pins without re-spinning the PCB. Choose PIC18F65K40 (non-LF) only if you do not need 1.8 V operation, otherwise the LF variant preserves battery life and BOM cost in low-voltage designs. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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