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PIC18LF4580-I/PT - 8-bit 40MHz MCU, 32KB Flash, ECAN | Microchip
PIC18LF4580-I/PT

PIC18LF4580-I/PT - 8-bit 40MHz MCU, 32KB Flash, ECAN | Microchip

The Microchip Technology PIC18LF4580-I/PT is an 8-bit RISC PIC18 microcontroller with 32KB (16K x 16) of Flash program memory, 1536 bytes of SRAM and 256 bytes of data EEPROM, housed in a 44-pin TQFP (10x10 mm) industrial-temperature package. It executes instructions at up to 40 MHz (10 MIPS) from an enhanced PIC18 Harvard architecture with a modified RISC instruction set, while the LF process node plus nanoWatt Technology features allow core operation down to 2.0 V for battery-backed designs. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, on-chip program memory, RAM, peripherals and interrupt logic, designed to sense, decide and act in embedded systems. Within the broader semiconductor taxonomy, an MCU sits under microcontrollers -> embedded processors -> digital ICs -> integrated circuits, while PIC18F-family parts target cost-sensitive deterministic control where 8-bit simplicity and a mature toolchain outweigh the raw throughput of 16-/32-bit Cortex-M parts. Key features include an integrated ECAN (Enhanced Controller Area Network) module supporting CAN 2.0B active, a 10-bit Analog-to-Digital Converter with 11 input channels, two analog comparators, two Capture/Compare/PWM (ECCP) modules, two UART/USART ports, one SPI bus and one I2C/Master-Sync-Serial-Port bus. The device exposes 36 programmable digital I/O lines, supports In-Circuit Serial Programming (ICSP) and In-Circuit Debug (ICD), and includes nanoWatt power-management modes such as idle, sleep and a real-time clock with on-chip low-power Timer1 oscillator. Architecturally, the PIC18LF4580-I/PT uses a 16-bit instruction word with 8-bit data, eight-level hardware stack and 32 interrupt sources, giving deterministic response times suitable for real-time control. The ECAN controller handles bus arbitration, acceptance filtering (16 masks / 16 filters) and message buffering in hardware, offloading what would otherwise be CPU-intensive bit-banging from the application core. Typical applications include automotive body and chassis networks (CAN nodes), industrial CANopen and DeviceNet slave devices, building-automation controllers, sensor-hub designs and low-power battery-powered instruments. The wide 2.0-5.5 V operating range makes it well-suited to mixed 3.3 V / 5 V rails. When designing with this part, place a 100 nF decoupling capacitor on every VDD/VSS pair and a bulk 10 uF on the main rail, keep the 40 MHz crystal traces short with a guarded ground plane, and use the on-chip ECAN rather than an external controller wherever PCB area or BOM cost is critical. This page synthesizes distributor pricing, drop-in same-package alternatives and practical design notes not consolidated in the manufacturer datasheet.

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PIC18LF4580T-I/ML - 8-bit 40MHz 32KB Flash MCU w/ CAN | Microchip
PIC18LF4580T-I/ML

PIC18LF4580T-I/ML - 8-bit 40MHz 32KB Flash MCU w/ CAN | Microchip

The Microchip Technology PIC18LF4580T-I/ML is an 8-bit PIC18 microcontroller with integrated CAN controller, delivering 40 MIPS performance from a 40 MHz oscillator, packaged in a 44-pin QFN (8x8 mm) with industrial -40C to +85C temperature rating. Key specifications include 32 KB of Flash program memory (16K x 16 words), 1.5 KB of SRAM data memory, and 256 bytes of EEPROM. The device integrates a 10-bit ADC with up to 13 channels, two CCP modules, an Enhanced USART, MSSP for SPI and I2C, and a CAN 2.0B controller compliant with ISO 11898. A PIC microcontroller is an 8-bit Harvard-architecture RISC device built around a small instruction set and separate program/data buses, designed for deterministic embedded control. PIC18 family devices add 16-bit instructions, linear memory, and richer peripherals while retaining the small footprint and low power consumption that made the family popular. The PIC18LF4580 specifically targets CAN-enabled industrial nodes such as automotive body controllers, sensor gateways, and factory automation peripherals. The LF prefix indicates a wide VDD operating range of 2.0 V to 5.5 V, allowing direct battery and 3.3 V regulator operation. Ten oscillator modes including internal RC and PLL support flexible clocking. The CAN 2.0B module, ECAN with DeviceNet configuration, and three maskable interrupt sources enable deterministic real-time response for time-critical industrial networks. NanoWatt power management provides idle, sleep, and Run mode current profiles suitable for battery-backed nodes. Typical applications include CAN node endpoints in vehicle body and chassis networks, industrial sensor hubs, HVAC controllers, building automation nodes, and low-power telemetry with CAN interface. The 44-pin QFN (8x8 mm) package supports compact PCB layouts where a TQFP footprint is undesirable. Design consideration: when migrating PIC18F4580 to LF, verify that peripheral driver stack supports the lower 2.0 V rail and confirm CAN bus transceiver selection matches the LF VDD range. Compared with newer PIC18 K-series, this LF4580 offers simpler peripherals and wider ecosystem code support but draws more active current. This page synthesizes distributor pricing, verified drop-in alternatives from Microchip's PIC18 family, and practical design notes not found in the manufacturer datasheet alone.

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PIC18LF4580T-I/PT - 8-bit PIC MCU, 32KB Flash, 40MHz, 44-TQFP
PIC18LF4580T-I/PT

PIC18LF4580T-I/PT - 8-bit PIC MCU, 32KB Flash, 40MHz, 44-TQFP

The Microchip Technology PIC18LF4580T-I/PT is a low-voltage, 8-bit PIC18 microcontroller featuring 32KB of Flash program memory, 1536 bytes of SRAM, and 256 bytes of EEPROM, all housed in a 44-pin TQFP (10x10 mm) package. Operating from a 2.0V to 5.5V supply, the device executes instructions at up to 10 MIPS from a 40 MHz oscillator and integrates a 10-bit ADC with up to 13 channels, a CAN 2.0B controller, an ECAN module, and the nanoWatt Technology power-management feature set. The 'T' suffix indicates tape-and-reel packaging and the 'I' suffix denotes the industrial -40C to +85C operating temperature range. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, volatile data memory, and configurable peripherals. The PIC18 family is Microchip's high-performance 8-bit architecture, positioned between the cost-optimized PIC16 family and the 16-bit dsPIC/PIC24 families. PIC18 MCUs typically include a hardware multiplier, prioritized interrupt controller, and a modified Harvard bus that lets the CPU read program memory as data through a table-read mechanism. They target embedded control applications that need deterministic response, low power, and a rich peripheral set without the cost of an ARM Cortex-M part. Key features of the PIC18LF4580T-I/PT include 36 digital I/O pins, dual USART, MSSP (SPI/I2C), a parallel slave port, CTMU for capacitive touch or general current-source measurement, and nanoWatt Technology modes (Idle, Sleep, Low-Power Sleep, and Deep Sleep) that drop quiescent current below 1 uA in deep sleep. The 'LF' variant targets low-voltage 2.0V operation, whereas the standard PIC18F4580 requires 4.2V minimum VDD; both share the same instruction set, peripheral set, and pinout, simplifying migration. The ECAN controller implements CAN 2.0B active with hardware acceptance filters, time-stamping, and multiple buffers, which is unusual at this price point and makes the part a strong fit for industrial networking. The 10-bit ADC supports up to 13 input channels with automatic acquisition and a 100 ks/s aggregate throughput, while CTMU enables capacitive-touch keypads, temperature measurement with a thermistor, or precision timing. Typical applications include CAN-based industrial automation, automotive body and chassis ECUs, building automation nodes, HVAC controllers, and small embedded control boards where 32KB of Flash and ECAN communication outweigh the need for a 32-bit core. The TQFP-44 package suits hand-solderable prototypes and surface-mount production lines alike. When designing with this part, configure the CONFIG words in MPLAB X IDE for the target oscillator and required peripherals, and always hold MCLR high through a 10 kohm pull-up. Decouple VDD/VSS with a 100 nF ceramic capacitor placed within 5 mm of each pin pair. This page synthesizes distributor pricing, drop-in alternatives, and design notes not found on any single manufacturer or distributor page, giving engineers and buyers a single reference for the PIC18LF4580T-I/PT.

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PIC18LF4585-I/ML - 8-bit MCU 48KB Flash ECAN 44-QFN | Microchip
PIC18LF4585-I/ML

PIC18LF4585-I/ML - 8-bit MCU 48KB Flash ECAN 44-QFN | Microchip

The Microchip PIC18LF4585-I/ML is an 8-bit PIC18 microcontroller with 48 KB of Flash program memory and 3,328 bytes of RAM, integrating a built-in ECAN (Enhanced Controller Area Network) module and housed in a 44-pin QFN (8x8 mm) package. It runs at up to 40 MHz CPU clock from a 2.0V to 3.6V supply (LF variant, low-voltage), delivering 10 MIPS performance and 16 MIPS at 64 MHz under extended voltage conditions, with 10-bit ADC and CCP/ECCP peripherals. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), data memory (RAM), and peripherals such as timers, ADC, communication buses, and I/O ports on one die. PIC microcontrollers from Microchip use a RISC architecture with a small, deterministic instruction set optimized for embedded control. Within the broader taxonomy, a PIC18LF4585 belongs to: microcontroller -> 8-bit MCU -> PIC18 family -> Flash MCU -> embedded controller -> semiconductor IC. The LF prefix denotes the low-voltage (2.0V-3.6V) variant of the PIC18F4585, trading absolute clock headroom for lower power consumption. Key differentiating features include the integrated ECAN controller (CAN 2.0B active) for automotive and industrial bus networks, 48 KB self-programmable Flash with 1 KB EEPROM, hardware multipliers for 8x8 single-cycle math, nanoWatt power management with idle/doze/sleep modes, and in-circuit debug/programming via two ICD pins. The 44-QFN package offers a low 8x8 mm footprint suitable for space-constrained industrial modules. Architecturally, the PIC18LF4585 uses a Harvard RISC core with a 16-bit instruction word and 8-bit data path, employing nanoWatt technology for low standby currents (under 100 nA typical in sleep). The ECAN module supports standard and extended identifiers, maskable filters, and bit timing configurable for 1 Mbps networks. The device retains legacy 18F compatibility while adding peripheral flexibility required for protocol bridging. Typical applications include CAN bus node endpoints in automotive body and powertrain ECUs, industrial automation slaves communicating on DeviceNet or CANopen, embedded sensor hubs with UART/SPI bridges to CAN, low-power battery instrumentation, and HVAC building controllers. The wide peripheral set supports both motor control (via ECCP) and protocol routing without an external transceiver MCU. Design considerations: ensure the 44-QFN exposed pad (pin 45) is soldered to a sufficiently large copper pour to meet thermal dissipation, and use 1% decoupling capacitors (100 nF plus 10 uF bulk) within 5 mm of VDD pins. Brown-out reset configuration in CONFIG2L must be enabled for automotive applications to guarantee defined startup behavior. This page synthesizes distributor pricing, drop-in alternatives in the same 44-QFN footprint, and practical design notes that complement the manufacturer datasheet.

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PIC18LF4585-I/P - 8-Bit 40MHz 48KB Flash MCU w/ECAN | Microchip
PIC18LF4585-I/P

PIC18LF4585-I/P - 8-Bit 40MHz 48KB Flash MCU w/ECAN | Microchip

The Microchip PIC18LF4585-I/P is an 8-bit RISC flash microcontroller with integrated ECAN, 48KB of program memory (24K x 16 words) and a 40MHz maximum clock speed, housed in a 40-pin PDIP (DIP-40) through-hole package. This PIC18F-family device delivers 200 ns instruction execution, 3328 bytes of RAM, and full CAN 2.0B active compliance for in-vehicle and industrial networks. An 8-bit microcontroller (MCU) is a single-chip computer built around a CPU with an 8-bit data path, on-chip flash program memory, RAM, and a rich set of peripherals (timers, ADC, communication ports). The PIC18F family, a subset of Microchip's PIC microcontroller hierarchy, extends the base PIC16 architecture with enhanced 16-bit instructions, linear memory addressing up to 2 MB, and C-optimized design models. PIC18F parts sit within the broader taxonomy: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor IC. The 'LF' prefix denotes the low-voltage (2.0-3.3V) core variant, while '4585' identifies the specific pinout/memory/peripheral profile. Key features of the PIC18LF4585-I/P include 48KB flash, 3328 bytes RAM, 256 bytes EEPROM, hardware ECAN module, 10-bit ADC with up to 13 channels, two USART modules, MSSP (SPI/I2C), two 8-bit and three 16-bit timers, nanoWatt power management, and an extended -40C to +85C industrial operating range. The 'I' suffix denotes the industrial temperature grade. The PIC18LF4585-I/P uses an advanced RISC Harvard architecture with separate program and data buses, a 16-bit instruction word, and an 8-level hardware stack. Internal PLL options multiply the external oscillator to achieve 40MHz operation, while nanoWatt technology provides multiple idle and sleep modes for battery-friendly operation. Hardware ECAN eliminates CPU overhead for CAN frame handling, freeing the core for application logic. Typical applications include automotive body controllers and HVAC modules, industrial CAN-based sensor networks, CAN-to-UART bridges, embedded data loggers, and low-voltage battery-powered instrumentation. The wide 2.0V-3.3V core voltage range (with 5V-tolerant I/O in some configurations) supports both 3.3V-only and mixed-voltage designs. When designing with this device, ensure the ECAN bus is terminated with 120 ohm resistors at each end of the bus, and use shielded twisted pair cable for noisy industrial environments. The internal oscillator may be used to save BOM cost, but a crystal is recommended for time-critical communications such as CAN at higher bit rates. This page synthesizes distributor pricing, drop-in alternatives drawn from the same Microchip PIC18F family, and practical design notes not found in the manufacturer datasheet.

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PIC18LF4585-I/PT - 8-bit 40MHz 48KB Flash MCU w/ECAN | Microchip
PIC18LF4585-I/PT

PIC18LF4585-I/PT - 8-bit 40MHz 48KB Flash MCU w/ECAN | Microchip

The Microchip Technology PIC18LF4585-I/PT is a low-voltage, enhanced 8-bit PIC microcontroller with 48KB of Flash program memory, 3,328 bytes of RAM, and an integrated ECAN (Enhanced Controller Area Network) module, delivered in a 44-pin TQFP (10x10 mm) package. It executes instructions at 40 MHz (10 MIPS) from a 16-bit modified Harvard RISC core, integrates an 11-channel 10-bit ADC, five 16-bit timers, two analog comparators, a USART, MSSP (SPI/I2C), and supports 36 digital I/O pins with 25 mA source/sink capability. An 8-bit microcontroller is a single-chip computing engine built around an 8-bit data path, where the CPU, program memory (Flash/ROM), data RAM, and a curated set of on-chip peripherals (timers, ADC, communication ports, comparators) are integrated into one package. 8-bit MCUs sit in the broader taxonomy of microcontrollers -> embedded controllers -> digital ICs -> semiconductors. Within that hierarchy, PIC18F/LF devices target mid-range embedded applications requiring deterministic interrupt response, low BOM cost, and a robust instruction set with C-friendly constructs - they bridge the gap between simple 8-bit MCUs and higher-performance 16/32-bit cores. The PIC18LF4585-I/PT key features include the integrated ECAN controller (CAN 2.0B compliant with hardware filtering), 1KB of on-chip EEPROM for data parameter storage, a 10 MHz internal oscillator plus external clock options, low-power sleep modes drawing microamp-level currents, and an industrial -40C to +85C operating range. The wide 2.0V to 5.5V supply (denoted by the LF prefix) makes it directly suited to battery-backed and regulated 3.3V designs. The PIC18F/LF4585 architecture is built on the standard PIC18 RISC core with 16-bit instructions and an 8-bit data path, providing 77 instructions, an 8-level hardware stack, and 32 vectored interrupts. On-chip peripherals are mapped through a SFR-based architecture and reach the pins through carefully assigned I/O multiplexers - this enables flexible pinout remapping while keeping the 44-pin TQFP package footprint stable across variants. Typical applications include industrial CAN bus nodes (factory automation, motor control), automotive body and comfort ECUs (LIN-to-CAN gateways), medical instrumentation requiring reliable data EEPROM logging, and consumer products needing USB/CAN/UART multi-protocol bridging. The LF (low-voltage) variant is especially well-suited to battery-powered or 3.3V-only designs. When designing with this device, choose the PIC18LF version if your system runs at 2.0V-3.3V; choose the standard PIC18F version for 4.2V-5.5V systems. Always include a 100 nF decoupling capacitor close to each VDD/VSS pair and route the analog VDD/VSS through a ferrite bead if the ADC and digital switching coexist on the same board. This page consolidates distributor pricing, drop-in alternatives, application reference circuits, and practical design notes not found in the manufacturer datasheet alone.

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PIC18LF4585T-I/ML - 48KB Flash, USB/ECAN 8-bit MCU | Microchip
PIC18LF4585T-I/ML

PIC18LF4585T-I/ML - 48KB Flash, USB/ECAN 8-bit MCU | Microchip

The Microchip Technology PIC18LF4585T-I/ML is a high-performance, low-power 8-bit PIC18 microcontroller with 48 KB of enhanced Flash program memory, 3328 B of SRAM, and an integrated USB 2.0 full-speed peripheral plus an ECAN (Enhanced Controller Area Network) module. It is housed in a 44-pin QFN (8x8 mm) package with exposed pad, operates at up to 48 MHz (12 MIPS) from a 2.0V to 5.5V supply, and supports 34 digital I/O pins. The part is qualified for the industrial -40C to +85C temperature range and is supplied on tape and reel. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (typically Flash), volatile data memory (SRAM), and a rich set of peripherals (timers, ADC, communication controllers, GPIOs). The PIC18 family sits inside Microchip's 8-bit portfolio and traces back through 16-bit PIC24 and dsPIC, then up to the broader hierarchy of microcontroller -> embedded processor -> semiconductor. The "LF" prefix denotes a low-voltage (2.0V-5.5V) variant, while "F" denotes standard-voltage 4.2V-5.5V; "4585" identifies the specific die featuring ECAN, USB, and 10-bit ADC. Key differentiating features of the PIC18LF4585T-I/ML include 48 KB Flash / 3328 B SRAM, integrated USB 2.0 full-speed with on-chip transceiver, ECAN controller supporting CAN 2.0B, 10-bit ADC with up to 13 input channels, two capture/compare/PWM modules, two USART modules, an SPI/I2C MSSP peripheral, nanoWatt Technology dynamic power management, and a 16-bit wide instruction set with 8-bit data path optimized for C-compiled code. The industrial temperature grade supports harsh-environment designs. The architecture is a Harvard RISC core with separate program and data buses, allowing instruction fetch and data access to occur in a single 4-clock cycle. nanoWatt Technology provides multiple idle and sleep modes, with current draw as low as microamps in deep sleep - extending battery life for portable and remote nodes. Typical applications include USB peripherals, CAN-based automotive and industrial node ECUs, sensor aggregation gateways, embedded-control LED for specialty lighting, and a backplane of PLC and metering controllers where USB diagnostics ports are needed alongside CAN fieldbus connectivity. When designing with this device, place the exposed pad (EP) of the QFN-44 to a thermally and electrically continuous ground plane - the EP must be soldered to PCB copper for thermal dissipation, EMI grounding, and signal integrity. Use a 0.1 uF ceramic bypass on VDD close to each supply pin and a 4.7-10 uF bulk cap on the regulator output feeding the MCU rail. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet - giving a procurement and engineering reference in one place.

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PIC18LF4585T-I/PT - 8-bit 40MHz 48KB Flash MCU w/ ECAN | Microchip
PIC18LF4585T-I/PT

PIC18LF4585T-I/PT - 8-bit 40MHz 48KB Flash MCU w/ ECAN | Microchip

The Microchip Technology PIC18LF4585T-I/PT is a low-power 8-bit PIC18 microcontroller integrating an Enhanced CAN (ECAN) controller, 48 KB of Flash program memory and 3,328 bytes of RAM, clocked at up to 40 MHz in a 44-pin TQFP package. Background Knowledge: The PIC18 family is Microchip's high-performance 8-bit microcontroller line built on a RISC architecture. An MCU (microcontroller) integrates a CPU core, non-volatile program memory (Flash), RAM, peripherals (timers, ADC, communication controllers) and I/O into a single chip. Within the PIC18 hierarchy, this part sits under PIC18F4585 family -> PIC18F45xx ECAN series -> PIC18F family, characterized by the ECAN peripheral and 40 MHz operation. The 'LF' prefix denotes the low-voltage variant designed to operate from 2.0 V, while the 'F' (non-LF) variant runs from 4.2 V minimum. Key features include an 8-bit data path, 40 MHz maximum clock speed, 48 KB Flash (24K x 16 words), 3,328 bytes RAM, integrated ECAN module compliant with CAN 2.0B, 10-bit ADC up to 13 channels, three timers and the standard PIC18 peripheral set. The 44-TQFP (10x10 mm) package provides 36 digital I/O pins, suitable for industrial and automotive embedded designs. Technical depth: The PIC18LF4585 employs a modified Harvard architecture with separate program and data buses, 16-bit opcodes and an 8-level hardware stack. The ECAN peripheral supports standard and extended identifiers, multiple transmit/receive buffers and acceptance filters, making the part suitable for industrial automation nodes. The LF (low-voltage) silicon runs core peripherals down to 2.0 V and supports nanoWatt technology for sleep currents in the microampere range. Typical applications include CAN-based industrial sensor networks, automotive body and powertrain nodes, embedded control with CAN communication, and low-power field instrumentation. The 48 KB Flash supports CANopen and DeviceNet protocol stacks. Design consideration: Pay attention to the 2.0 V minimum Vdd of the LF variant - if your system needs 5 V operation, choose the PIC18F4585T-I/PT instead. Use Microchip's MPLAB X IDE and the PICkit debugger for code development. This page consolidates distributor pricing, drop-in alternatives, and practical design guidance beyond what the manufacturer datasheet alone provides.

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PIC18LF458T-I/L - 8-bit MCU 40MHz 32KB Flash w/ CAN 44-PLCC | Microchip
PIC18LF458T-I/L

PIC18LF458T-I/L - 8-bit MCU 40MHz 32KB Flash w/ CAN 44-PLCC | Microchip

The Microchip Technology PIC18LF458T-I/L is an 8-bit PIC18 microcontroller built on a Harvard RISC architecture, integrating a CAN 2.0B module with 32 KB of Flash program memory (16K x 16) and 1.5 KB of RAM, in a 44-pin PLCC (16.59 x 16.59 mm) J-lead package. It operates at up to 40 MHz from a 2.0 V to 5.5 V supply, with the -I temperature grade spanning -40 C to +85 C, and includes an integrated 10-bit ADC with up to 8 channels plus standard serial peripherals (I2C, SPI, USART). A PIC18 microcontroller belongs to Microchip's enhanced 8-bit PIC family - an 8-bit MCU category that sits between simple 8051 cores and 16/32-bit ARM Cortex-M devices in the embedded hierarchy (PIC18 -> PIC microcontrollers -> 8-bit MCU -> microcontroller -> embedded processor). The 'LF' suffix denotes the low-voltage Flash variant designed for 2.0 V operation, while the 'F458' device integrates the CAN protocol engine that distinguishes it from the non-CAN PIC18F452. The 'T' suffix indicates Tape & Reel packaging, and 'I/L' specifies the industrial temperature range in PLCC. Key features include 32 KB self-programmable Flash, 1.5 KB SRAM, 256 B EEPROM, 33 digital I/O pins, two analog comparators, two 8/16-bit timer/counters, three 16-bit capture/compare/PWM modules, an 8-channel 10-bit ADC, and an ECAN module supporting CAN 2.0B active/passive. An 8x8 hardware multiplier and a 16-bit instruction path deliver up to 10 MIPS at 40 MHz, while nanoWatt technology with multiple idle/sleep modes enables battery-friendly operation. The architecture combines a 16-bit instruction word with an 8-bit data path, supports linear program memory addressing up to 2 MB via PSV, and includes prioritized interrupts, hardware stack, and a 4-deep FIFO on the MSSP SPI channel. Self-programmability in the Flash variant makes in-field firmware upgrades practical without external boot memory. Typical applications include industrial CAN nodes (sensors, motor controllers, building automation), automotive body/comfort modules, HVAC controls, and embedded control boards that require a networkable 8-bit controller with mixed-signal I/O. The wide 2.0-5.5 V range allows direct connection to both 3.3 V and 5 V rails commonly found on legacy industrial backplanes. When designing with the PLCC-44 variant, allocate a socket or rework allowance for field replacement, observe the parallel master port pin sharing rules during ISP, and place a 0.1 uF ceramic bypass capacitor adjacent to every VDD/VSS pair to keep the internal PLL and CAN transceiver logic quiet. The 'T' suffix denotes Tape & Reel packaging for automated assembly, but engineers typically hand-socket this through-hole-style PLCC part during prototyping.

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PIC18LF458T-I/PT - 8-bit 40MHz 32KB Flash CAN MCU | Microchip
PIC18LF458T-I/PT

PIC18LF458T-I/PT - 8-bit 40MHz 32KB Flash CAN MCU | Microchip

The Microchip Technology PIC18LF458T-I/PT is an 8-bit PIC18 microcontroller IC operating at up to 40MHz, integrating 32KB (16K x 16) of FLASH program memory, 1.5KB of SRAM, 256 bytes of EEPROM, and an 8-channel 10-bit ADC, housed in a 44-pin TQFP (10x10mm) package. The "LF" prefix denotes the low-voltage variant supporting 2.0V to 5.5V operation, while the "T" suffix denotes tape-and-reel packaging. It belongs to the PIC18F458 family that adds a CAN 2.0B controller alongside standard peripherals I2C, SPI and USART. A PIC18 microcontroller is a member of Microchip's 8-bit PIC (Peripheral Interface Controller) family, which combines a RISC-based CPU core with on-chip FLASH, SRAM, EEPROM and a rich peripheral set in a single CMOS IC. Within the broader taxonomy, the PIC18 sits between the legacy PIC16 mid-range line and the high-performance dsPIC DSC family. PIC18F devices are the de-facto choice for cost-sensitive embedded control with deterministic interrupt latency and instruction-set compatibility across pin counts. Key features include hardware CAN 2.0B with acceptance filters, an Enhanced USART supporting RS-232/RS-485, a Master I2C/SPI port, a 10-bit 8-channel ADC, four timer modules, two PWM/CCP modules and a 10 MIPS execution rate from a 40MHz oscillator. The 10x10mm TQFP-44 footprint exposes 33 digital I/O lines and the full peripheral set, making the part attractive for board-space constrained industrial nodes. Architecturally, the device uses a 16-bit instruction word with an 8-bit data path, 31-level hardware stack and DC-to-40MHz oscillator with PLL options. The CAN engine implements CAN 2.0B active with six acceptance masks/filters, offloading bus arbitration from the CPU and preserving 10 MIPS bandwidth for application code. Typical applications include industrial CAN nodes (sensor/actuator hubs, motor drives), automotive body electronics, building automation, medical instrumentation telemetry, and any 5V-tolerant embedded control network requiring deterministic on-chip CAN. The wide 2.0V-5.5V supply range also supports battery-powered field nodes. When designing with this part, plan for proper decoupling (100nF plus 10uF bulk near VDD/AVDD/VSS), use the MSSP module in I2C mode carefully for bus arbitration, and configure the CAN bit-timing per CiA-recommended values for the chosen bus baud. The "I" suffix confirms the -40C to +85C industrial operating range. This page synthesizes distributor pricing, drop-in alternatives and practical design notes not found in the standalone manufacturer datasheet.

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PIC18LF45J10-I/ML - 8-Bit 40MHz 32KB Flash MCU 44-QFN | Microchip
PIC18LF45J10-I/ML

PIC18LF45J10-I/ML - 8-Bit 40MHz 32KB Flash MCU 44-QFN | Microchip

The Microchip Technology PIC18LF45J10-I/ML is an 8-bit RISC PIC18 microcontroller delivering 32 KB of FLASH program memory, 1 KB of data SRAM, and a maximum CPU clock of 40 MHz in a 44-pin QFN (8x8 mm) package with an exposed thermal pad. Operating from 2.0V to 3.6V on the LF core, it targets low-voltage, low-power embedded designs that need ample code space and a rich peripheral set. What is a PIC18 microcontroller? PIC18 is Microchip's high-performance 8-bit PIC family built on a Harvard RISC architecture. It sits in the taxonomy: PIC18 -> 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. PIC18 devices are widely used because they combine deterministic instruction execution, mature toolchains (MPLAB X, XC8), and rich peripheral integration. The LF sub-family indicates a low-voltage core optimized for 2.0-3.6V operation, distinct from the 5V-tolerant F and K-series variants. Key features of the PIC18LF45J10 include 32 KB FLASH (16K x 16 words), 1 KB data RAM, an internal 31 kHz to 8 MHz oscillator with PLL, two analog comparators, two PWM modules (10-bit), three timers plus a watchdog timer, a hardware RTCC, and nanoWatt technology for sleep currents in the microamp range. Communication interfaces comprise two MSSP (SPI/I2C) modules, an enhanced USART with auto-baud detect, and a full-speed USB 2.0 device controller - a notable feature for an 8-bit MCU at this price point. The device uses a 16-bit instruction word with an 8-bit data path, providing 77 effective instructions and a 2-deep hardware stack plus 31-level software stack. Two capture/compare/PWM modules and three 16-bit timers support motor control, lighting, and mixed-signal front-ends. The on-chip 10-channel, 10-bit ADC enables sensor reading directly without external conversion. Typical applications include USB HID peripherals (mice, keyboards, custom HID), industrial sensor nodes, low-power handheld instruments, and consumer appliances. The QFN-44 package suits space-constrained designs, while the exposed pad (EP) provides a low thermal-resistance path for the internal voltage regulator. USB applications are particularly common because of the integrated transceiver and SIE. When designing with this MCU, allocate a 4.7 uF bulk capacitor plus a 100 nF decoupling pair near each power pin. The VUSB pin requires an internal 3.3V regulator for USB transceiver supply, and the on-chip LVD/BOR provides safe brownout behavior for battery-powered systems. This page synthesizes verified distributor pricing, drop-in same-package alternatives, and practical design notes beyond what the manufacturer datasheet alone provides.

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PIC18LF45J10-I/P - 8-bit 40MHz 32KB Flash MCU | Microchip
PIC18LF45J10-I/P

PIC18LF45J10-I/P - 8-bit 40MHz 32KB Flash MCU | Microchip

The Microchip Technology PIC18LF45J10-I/P is an 8-bit RISC microcontroller in the PIC18J family, integrating 32KB of Flash program memory and 1024 bytes of SRAM in a 40-pin PDIP (DIP) through-hole package. It executes instructions at up to 40 MHz from a 2.0V to 3.6V supply, providing low-voltage operation suitable for battery-powered and portable designs. The 'LF' prefix indicates the extended low-voltage flavor of the family; the non-LF PIC18F45J10 variant supports 2.0V to 5.5V. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, data memory, and peripherals onto one silicon die. Within the broader taxonomy, the PIC18LF45J10 belongs to the 8-bit MCU category, then to the PIC18 family of enhanced Harvard-architecture devices, then to the Microchip PIC microcontroller family, and finally to the broader class of embedded microcontrollers and microprocessors. Its 8-bit data path is paired with a 16-bit instruction word that enables single-cycle execution of most operations, delivering higher throughput than legacy PIC16 designs at the same clock rate. Key features include a 10-bit ADC with multiple input channels, two enhanced USART peripherals (one with LIN master/slave support), two MSSP (Master Synchronous Serial Port) modules capable of SPI and I2C (with address masking), a 32-segment LCD driver option on sibling parts, and 32 general-purpose digital I/O pins arranged across multiple ports. An integrated oscillator, two 8-bit timers, and three 16-bit timers provide flexible timekeeping, while the nanoWatt power management feature with multiple idle and sleep modes helps reduce quiescent current to single-digit microamps for power-sensitive applications. Typical applications include industrial control nodes, low-cost consumer appliances, sensor conditioning front-ends, USB-to-UART bridges using external transceivers, and educational/development platforms. The wide software ecosystem (MPLAB X IDE, XC8 compiler, MPLAB Code Configurator) and the rich peripheral set make the part a popular choice for replacing older PIC16 designs that require more code space and higher clock speed. When designing with the PIC18LF45J10-I/P, observe the 3.6V absolute maximum on VDD, place a 100 nF decoupling capacitor adjacent to each power pin, and ensure in-circuit serial programming (ICSP) lines are brought out to a header for production programming. Prefer the LF variant when operating from a single Li-ion cell (2.0V to 3.6V); otherwise, the non-LF PIC18F45J10 offers more headroom for 5V-tolerant designs. This page synthesizes distributor pricing, parametric comparison data, and design notes that go beyond the manufacturer datasheet, including a curated drop-in alternative list of PIC18LF45K22 and PIC18LF45J11 options sharing the same 40-pin PDIP footprint for drop-in upgrades with more memory or peripherals.

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PIC18LF45J10-I/PT - 8-Bit 40MHz 32KB Flash MCU | Microchip
PIC18LF45J10-I/PT

PIC18LF45J10-I/PT - 8-Bit 40MHz 32KB Flash MCU | Microchip

The Microchip Technology PIC18LF45J10-I/PT is an 8-bit RISC microcontroller from the PIC18J family, integrating 32KB of Flash program memory, 1024 bytes of SRAM, and a 40 MHz CPU core in a 44-pin TQFP (10x10 mm) package with industrial-grade -40C to +85C temperature rating. What is an 8-bit PIC microcontroller? A PIC (Peripheral Interface Controller) is a family of microcontrollers built on a Harvard-architecture RISC core developed by Microchip. The PIC18 sub-family is the high-performance tier of the 8-bit portfolio, offering enhanced instruction set, linear program memory addressing up to 2 MB, and C-optimized architecture. PIC microcontrollers occupy the position: microcontroller -> embedded MCU -> semiconductor IC, and dominate low-power, deterministic real-time applications where simple peripherals and proven toolchains (MPLAB X IDE, XC8 compiler) are valued over raw compute. Key features of the PIC18LF45J10 include 32KB (16K x 16) Flash with self-programmability, 1KB RAM, 256 bytes EEPROM, 10-bit ADC with up to 13 channels, two enhanced USART modules (one with LIN support), two MSSP ports for SPI/I2C with I2C address masking, and nanoWatt power management for sleep currents under 100 nA typical. The LF suffix denotes the wide-voltage 2.0V to 3.6V operating range. The device uses an advanced RISC core with 16-bit instructions and 8-bit data path, a hardware multiplier, and a 31-level deep hardware stack. The nanoWatt technology provides multiple idle and sleep modes with on-the-fly clock switching between primary oscillator, internal 31 kHz, and 8 MHz INTOSC sources. Typical applications include consumer appliances, industrial sensor interfaces, USB-to-UART bridges, HVAC controls, low-cost data loggers, and battery-powered IoT sensor nodes. The integrated 10-bit ADC and dual serial interfaces make it well-suited for bridge and protocol-conversion roles. A key design consideration is that the LF variant requires VDD between 2.0V and 3.6V - if your system needs 5V I/O, choose the PIC18F45J10 (F-suffix) variant instead. For drop-in compatibility, ensure the same TQFP-44 footprint is retained, as the package pinout is shared with PIC18F45J10 and other PIC18 J-family 40/44-pin members. This page synthesizes distributor pricing, drop-in alternatives, and design notes not found in the manufacturer datasheet alone.

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PIC18LF45J10T-I/ML - 8-bit PIC MCU, 32KB Flash, 44-QFN | Microchip
PIC18LF45J10T-I/ML

PIC18LF45J10T-I/ML - 8-bit PIC MCU, 32KB Flash, 44-QFN | Microchip

The Microchip Technology PIC18LF45J10T-I/ML is an 8-bit PIC18J-series microcontroller with a 40 MHz core, 32 KB of Flash program memory organized as 16K x 16, and 1 KB of RAM, packaged in a 44-pin QFN (8x8 mm). It is the low-voltage 'LF' variant of the PIC18F45J10 family, designed to operate from a 2.0 V to 3.6 V supply while retaining the same peripheral set as its 5 V sibling. A PIC18 microcontroller is an 8-bit RISC MCU from Microchip's PIC18 family, which sits within the broader hierarchy: PIC18 -> 8-bit PIC -> microcontroller -> embedded processor -> semiconductor. The 'J' suffix indicates the J-series nanoWatt technology line, which adds ultra-low-power sleep modes and a 2.0 V minimum Vdd for battery-powered designs. PIC18 devices dominate hobbyist, industrial-control, and USB-embedded applications because of their deterministic instruction set, mature MPLAB X toolchain, and free XC8 compiler support. Key features of the PIC18LF45J10T-I/ML include 32 KB self-programmable Flash, 1 KB SRAM, 256 B of EEPROM-like data Flash, an internal 8 MHz and 31 kHz oscillator, two 8-bit timers plus three 16-bit timers, two capture/compare/PWM (CCP) modules, an enhanced USART (EUSART) with LIN support, master I2C and SPI peripherals, a 10-bit ADC with up to 13 channels, two analog comparators, and a CTMU module for capacitive touch sensing. On-chip safety peripherals include Brown-out Reset (BOR), Power-on Reset (POR), and a Watchdog Timer (WDT). Architecturally the part uses an enhanced Harvard architecture with a 16-bit instruction word and 8-bit data path, allowing single-cycle execution except for branches. The nanoWatt-extended J-series core supports multiple idle modes (Idle, Sleep, and deep Sleep with RTCC wake-up), enabling standby currents in the microamp range - critical for line-powered or battery-backed sensors. Typical applications include USB-to-UART bridges, low-power sensor nodes with capacitive touch HMI, industrial control panels using the 10-bit ADC for analog monitoring, and consumer appliances requiring LIN or UART communication. The 44-QFN package gives 36 general-purpose I/O pins, sufficient for driving displays, keypads, and relay matrices. For designs requiring more memory or USB, the PIC18F46J11 / PIC18F47J53 in the same 44-pin pinout is a common upgrade path. When designing with the PIC18LF45J10T-I/ML, plan for a 3.3 V regulated rail; the LF variant does not run at 5 V. Place a 100 nF decoupling capacitor close to every Vdd pin and a 10 uF bulk cap on the regulator output. Configure the configuration bits for the internal 8 MHz oscillator with PLL to reach 40 MHz MIPS to avoid external crystal cost. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes that are not aggregated in any single manufacturer datasheet or distributor listing.

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PIC18LF45J10T-I/PT - 8-bit 40MHz MCU 32KB Flash | Microchip
PIC18LF45J10T-I/PT

PIC18LF45J10T-I/PT - 8-bit 40MHz MCU 32KB Flash | Microchip

The Microchip Technology PIC18LF45J10T-I/PT is a low-voltage 8-bit PIC18 microcontroller built on an enhanced RISC architecture, running up to 40 MHz and integrating 32 KB of Flash program memory (16K x 16) alongside 1 KB of RAM in a 44-pin TQFP (10x10 mm) package. The 'LF' prefix denotes the wide 2.0-3.6V operating range tailored for battery-powered and low-power designs, while the 'J' series implements the Microchip nanoWatt XLP feature set for deep sleep current reduction. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, data RAM, and a configurable set of peripherals such as timers, ADC, communication interfaces, and I/O. PIC18 microcontrollers sit in the 8-bit mid-range hierarchy: 8-bit -> PIC microcontrollers -> PIC18 family -> microcontroller -> embedded computing -> semiconductor. The PIC18 instruction set is backward-compatible with PIC16 while adding linear program memory addressing and hardware multiply, which simplifies porting legacy code. Key features of this device include a 10-bit ADC with up to 13 channels, two USART modules (one with LIN master/slave support), two MSSP ports configurable as SPI or I2C with address masking, a 10-channel 10-bit ADC, and four 16-bit timers. Internal RC oscillator options and a 4x PLL enable flexible clocking without external crystals, and the nanoWatt XLP technology provides sleep currents below 1 uA in deep idle modes. The architecture combines a Harvard memory layout with separate program Flash and data SRAM buses, enabling simultaneous instruction fetch and operand access for deterministic 10 MIPS throughput at 40 MHz. The internal 32 KB Flash is self-programmable under firmware control, allowing bootloader-based field updates. Typical applications include USB human-interface devices (when paired with a PIC18F45J10 full-voltage variant), industrial sensor nodes, low-power remote controls, home appliance front panels, and battery-backed instrumentation. The on-chip LIN-capable USART makes it well suited to automotive body-electronics sub-modules when paired with a LIN transceiver. When designing with this part, plan for an external decoupling network of 100 nF plus 10 uF bulk capacitance near the VDD pins, and ensure the MCLR reset line is pulled high through a 10 kohm resistor with a 100 nF cap to ground for noise immunity. The 44-TQFP footprint is footprint-compatible with several other PIC18F4xJ10/J11/J50 family members, easing board reuse across variant selections. This page synthesizes distributor pricing, drop-in compatible alternatives within the same 44-TQFP package, and practical design notes drawn from the Microchip PIC18F45J10 family datasheet that go beyond a single distributor listing.

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PIC18LF45J11T-I/ML - 48MHz 8-bit MCU 32KB Flash 44-QFN | Microchip
PIC18LF45J11T-I/ML

PIC18LF45J11T-I/ML - 48MHz 8-bit MCU 32KB Flash 44-QFN | Microchip

The Microchip Technology PIC18LF45J11T-I/ML is a low-power, high-performance 8-bit PIC18 microcontroller featuring 32KB Flash program memory, 4KB RAM, and a 48 MHz (12 MIPS) CPU core, housed in a 44-pin QFN (8x8 mm) package with an exposed thermal pad. The 'LF' prefix indicates the wide-voltage 2.0V to 5.5V supply range, while the 'J11' family adds USB 2.0 full-speed peripheral support. The 'T' suffix denotes Tape & Reel packaging for high-volume SMT assembly, and the 'I' indicates the industrial -40C to +85C operating temperature range. What is a PIC18 microcontroller? A PIC18 microcontroller is an 8-bit RISC (Reduced Instruction Set Computer) MCU from Microchip Technology's PIC18 family, sitting at the mid-range of Microchip's PIC microcontroller hierarchy. PIC18 -> 8-bit MCU -> microcontroller -> embedded processor -> semiconductor IC. The PIC18 core offers 77 instructions, hardware multiplier, 32-level stack, and C-friendly architecture, making it a step up from PIC16 in code density and interrupt handling while remaining more deterministic than 32-bit Cortex-M cores for simple real-time tasks. Key features of the PIC18LF45J11T-I/ML include a 10-bit ADC with up to 13 channels, multiple communication peripherals (USB 2.0 FS, two I2C/SPI, two USART with LIN support), four 8-bit/16-bit timers, two analog comparators, and nanoWatt XLP power-saving modes that drop current consumption below 100 nA in sleep. The 48 MHz internal oscillator eliminates the need for an external crystal in many designs, while the 44-QFN package provides a compact 8x8 mm footprint with excellent thermal dissipation through the exposed pad. The architecture uses a 16-bit instruction word with single-cycle execution for most instructions, giving an effective throughput of 12 MIPS at 48 MHz. The 32KB Flash supports self-programming and is partitioned into a bootloader region plus application code, while 4KB of SRAM supports data-heavy USB stacks and TCP/IP libraries. The integrated USB 2.0 full-speed transceiver and on-chip pull-up resistors remove the need for external USB PHY components in HID, CDC, or vendor-class device designs. Typical applications include USB human-interface devices (HID keyboards, mice, game controllers), USB-to-UART bridges and virtual COM ports, industrial sensor nodes with LIN bus, low-power battery-powered IoT endpoints, and consumer appliances requiring capacitive-touch or analog front-end support. The combination of USB, ample RAM, and XLP sleep current makes it well-suited for always-on peripherals that must wake on interrupt and serve a USB host. When designing with this device, note that the QFN-44 EP package requires reflow soldering and a thermal pad soldered to a ground copper pour for mechanical reliability. Programming is supported through Microchip's MPLAB X IDE with XC8 compiler; ICD3/Pickit 4 debug headers require dedicated pins (PGC/PGD) and may need isolation from application circuitry. Be sure to enable the internal weak pull-ups on unused pins to avoid floating-input current draw. This page consolidates distributor pricing, drop-in alternatives in the same 44-QFN footprint, and practical design notes not always visible in the manufacturer datasheet.

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PIC18LF45J11T-I/PT - 8-bit MCU, 32KB Flash, 4KB RAM | Microchip
PIC18LF45J11T-I/PT

PIC18LF45J11T-I/PT - 8-bit MCU, 32KB Flash, 4KB RAM | Microchip

The Microchip Technology PIC18LF45J11T-I/PT is a 24/40/44-pin high-performance 8-bit microcontroller based on the PIC18 architecture with 32 KB Flash program memory, 4 KB SRAM, and 48 MHz (12 MIPS) operation. It is supplied in a 44-pin TQFP (PT) package, supplied in tape and reel, and operates from 2.0V to 5.5V on the LF (low-voltage) process. An 8-bit microcontroller (MCU) is a programmable system-on-chip that integrates a CPU, Flash program memory, SRAM data memory, peripherals and I/O on a single die. PIC18 LF J11 series parts add nanoWatt Technology power management (multiple idle/sleep modes) and a full-speed USB 2.0 full-speed peripheral on the J11 die revision, extending the classic PIC18 family hierarchy (PIC10/12/16/18) into connected embedded nodes. Key features include 34 I/O pins, internal 31 kHz to 8 MHz oscillator with PLL, 10-bit ADC up to 13 channels, two USARTs, two MSSP (SPI/I2C) ports, and nanoWatt power-saving modes that drop typical run currents below 1 mA/MHz. Program memory is self-programmable under firmware control, enabling in-application upgrades. The LF (low-voltage) silicon supports 2.0V to 5.5V operation across -40C to +85C industrial temperature range, making the part a drop-in lower-power sibling of the F-version PIC18F45J11 (2.0V-3.6V-only). The TQFP-44 footprint supports hand-solderable prototyping and standard 0.8 mm-pitch PCB assembly. Typical applications include USB peripherals (HID, CDC), low-power sensor nodes, industrial control, consumer electronics, and battery-powered instrumentation where nanoWatt idle currents and USB connectivity matter. When designing, ensure the 5.5V VDDMAX is respected under USB bus-powered transient conditions, and add bulk decoupling per the PIC18 LF J11 family datasheet. This page synthesizes distributor pricing, drop-in same-package alternatives, and engineering guidance not found in the manufacturer datasheet alone.

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PIC18LF45J50-I/ML - 8-Bit USB MCU, 32KB Flash, 44-QFN | Microchip
PIC18LF45J50-I/ML

PIC18LF45J50-I/ML - 8-Bit USB MCU, 32KB Flash, 44-QFN | Microchip

The Microchip Technology PIC18LF45J50-I/ML is an 8-bit PIC18 microcontroller with integrated Full-Speed USB 2.0, 32KB Flash program memory and 4KB RAM, housed in a 44-pin QFN-EP (8x8 mm) package with exposed thermal pad. It belongs to the PIC18 J-family of nanoWatt XLP extreme-low-power devices, runs at up to 48 MHz internal clock, and operates from a 2.0-3.6 V supply, making it well suited to battery-powered and USB-powered designs. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, working RAM, and a configurable set of peripheral blocks (I/O, timers, communications, ADC) into one package. The PIC18LF45J50-I/ML sits in the sub-hierarchy: microcontroller -> 8-bit MCU -> PIC18 family -> PIC18 J-series (USB) -> power-managed (LF / nanoWatt XLP) variants. The 8-bit PIC18 core uses an enhanced Harvard RISC architecture with a 16-bit instruction word, which gives higher code density than 8-bit instruction word cores while keeping the silicon footprint small. Key features of this part include 32 KB (16K x 16) of self-programmable Flash, 4 KB RAM, a 10-channel 10-bit ADC, two analog comparators, two CCP/ECCP modules, two USART, two MSSP (I2C/SPI), a Full-Speed USB 2.0 device/host/OTG transceiver with on-chip pull-ups, up to 32 mA source/sink on I/O, and nanoWatt XLP power management that drops quiescent current to roughly <100 nA in Sleep with RTCC. The 44-QFN-EP package offers a small 8x8 mm footprint and a thermal pad for better dissipation in space-constrained USB dongles. Typical applications are Full-Speed USB peripherals, USB-to-UART bridges, USB HID/CDC devices, low-power battery sensors, and small industrial control nodes where the integrated USB PHY saves an external chip. The exposed pad on the QFN-EP package must be soldered to the ground plane for both electrical grounding and thermal dissipation. When designing with this part, place the 12 MHz crystal or resonator and its load capacitors within a few millimetres of the OSC1/OSC2 pins to avoid noise coupling into the USB PLL, and follow Microchip's USB 2.0 stack guidelines (impedance-controlled 90 ohm differential D+/D- traces, common-mode choke) to pass USB compliance. The LF prefix means the part uses the lower-voltage process; do not power it above 3.6 V or you will damage the device. This page synthesises verified distributor pricing, drop-in same-package alternatives, and practical design notes for the PIC18LF45J50-I/ML that are not bundled together in the manufacturer datasheet, giving procurement and firmware engineers a single reference point for sourcing and substitution decisions.

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PIC18LF45J50-I/PT - 8-bit USB MCU, 32KB Flash, 44-TQFP | Microchip
PIC18LF45J50-I/PT

PIC18LF45J50-I/PT - 8-bit USB MCU, 32KB Flash, 44-TQFP | Microchip

The Microchip Technology PIC18LF45J50-I/PT is an 8-bit PIC18 microcontroller featuring a 48 MHz internal clock, 32 KB Flash program memory, and an integrated full-speed USB 2.0 transceiver, housed in a 44-pin TQFP (10x10 mm) package. It belongs to the PIC18 J-series "XLP nanoWatt" family and operates from 2.0 V to 3.6 V, delivering 12 MIPS throughput while consuming deep-sleep currents as low as 13 nA. An 8-bit microcontroller (MCU) is a small, self-contained computer-on-a-chip that integrates a CPU, RAM, non-volatile program memory, and peripheral interfaces on a single die. PIC microcontrollers use a Harvard RISC architecture with separate program and data buses, which allows the CPU to fetch an instruction and a data operand in the same cycle. The PIC18 family extends the baseline PIC16 instruction set with C-friendly addressing, a hardware multiplier, and 16-bit instruction words, positioning PIC18LF45J50-I/PT inside the broader hierarchy of 8-bit MCU -> PIC microcontroller -> Microchip MCU portfolio -> embedded computing platform. Key features include 32 KB self-programmable Flash, 3.8 KB RAM, full-speed USB 2.0 with on-chip transceiver, 13-channel 10-bit ADC, two analog comparators, two UART/SPI/I2C modules, and nanoWatt XLP deep-sleep modes. The device supports 34 digital I/O pins, 2 CCP modules, and an Enhanced Capture/Compare/PWM peripheral for motor and lighting control. Real-Time Clock/Calendar with software-calibrated 32 kHz source is also integrated. Architecturally, the PIC18LF45J50-I/PT pairs the standard PIC18 pipeline with a wide operating voltage range, an internal 31 kHz to 8 MHz oscillator block, and a 4x PLL to reach 48 MHz. The on-chip USB SIE handles full-speed and low-speed signaling without an external PHY, while nanoWatt XLP technology gates unused peripherals to achieve the 13 nA sleep figure, which is critical for battery-powered USB peripherals. Typical applications include USB HID peripherals (keyboards, mice, joysticks), battery-powered sensors, industrial data loggers, USB-to-UART bridges, and low-power embedded control nodes. The wide temperature range (-40C to +85C industrial grade) also suits factory automation modules and consumer-electronics accessories. When designing with this part, place the 12 MHz external crystal or use the internal 8 MHz HFINTOSC with 4x PLL close to the OSC pins, keep D+/D- trace lengths matched within 50 mil, and follow Microchip's "PIC18F46J50 Family Data Sheet" guidelines for USB-IF compliance testing. This page synthesizes distributor pricing, same-family drop-in alternatives, USB design notes, and a 44-pin TQFP pinout diagram that are not co-located on any single manufacturer or distributor page.

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PIC18LF45J50T-I/ML - 8-bit USB MCU, 32KB Flash, 44-QFN | Microchip
PIC18LF45J50T-I/ML

PIC18LF45J50T-I/ML - 8-bit USB MCU, 32KB Flash, 44-QFN | Microchip

The Microchip Technology PIC18LF45J50T-I/ML is an 8-bit PIC18 microcontroller featuring integrated full-speed USB 2.0, 32KB of Flash program memory, 4KB of RAM, and a 48 MHz internal oscillator, all packaged in a 44-pin QFN with exposed pad (8x8 mm) for tape-and-reel delivery. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, data RAM, and a rich set of peripherals. The PIC18 family uses an enhanced Harvard RISC architecture optimized for deterministic real-time control and low-power operation, sitting within Microchip's broader 8-bit MCU portfolio (PIC10/12/16/18) that is widely deployed in consumer, industrial, and USB-connected embedded systems. Key specifications include 32KB (16K x 16) of self-programmable Flash, 4KB RAM, 256 bytes of EEPROM, a 10-bit ADC with up to 13 channels, two USB transceivers (full-speed 12 Mbps and low-speed 1.5 Mbps), nanoWatt XLP power management, and an extended operating voltage range of 2.0V to 3.6V suited to battery-powered designs. The architecture combines a modified Harvard bus with a 16-bit instruction word and 8-bit data path, achieving up to 16 MIPS throughput at 48 MHz. The integrated USB peripheral handles physical-layer signaling in hardware, eliminating external transceivers and reducing BOM cost for HID, CDC, and vendor-class USB device applications. Typical applications include USB peripherals (HID keypads, game controllers, CDC virtual COM ports, MIDI adapters), low-power sensor data loggers, portable medical and instrumentation devices, and battery-powered industrial IoT nodes that require direct USB connectivity without external PHY chips. When designing with this device, allocate the bottom 8KB of Flash for the USB bootloader to enable field firmware upgrades via USB. Ensure the exposed pad (EP) is soldered to a sufficiently large copper pour for thermal dissipation, as the QFN package relies primarily on PCB heat spreading. This page synthesizes current distributor stock and pricing, drop-in same-package alternatives, and practical design notes not collected together in the manufacturer datasheet.

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PIC18LF45K22-E/ML - 8-bit 48MHz 32KB Flash MCU | Microchip
PIC18LF45K22-E/ML

PIC18LF45K22-E/ML - 8-bit 48MHz 32KB Flash MCU | Microchip

The Microchip Technology PIC18LF45K22-E/ML is a 44-pin, 8-bit PIC18 microcontroller built on Microchip's nanoWatt XLP low-power technology, offering up to 48 MHz operation, 32 KB of Flash program memory, 1.5 KB of RAM, and 256 bytes of EEPROM in a 44-lead QFN (8x8 mm) package with extended (-40C to +125C) operating temperature. The 'LF' prefix indicates a wide-voltage F-variant core operating from 1.8 V to 3.6 V, while the 'E' suffix marks the extended-temperature grade. An 8-bit microcontroller (MCU) is a single-chip computer that integrates an 8-bit CPU core, Flash program memory, RAM, EEPROM, and a rich set of digital and analog peripherals into one package. MCUs sit at the top of the embedded device hierarchy: they are descendants of microprocessors that have absorbed nearly every supporting component, becoming self-contained 'system on chip' building blocks for embedded products. The PIC18LF45K22 belongs to the PIC18 family, which targets low-power and high-pin-count applications. Key features include nanoWatt XLP sleep currents below 100 nA, two Enhanced USART modules for simultaneous serial communication, two MSSP peripherals supporting both I2C and SPI, a 12-bit A/D converter with up to 28 channels, multiple 16-bit timers, and CTMU charge-time measurement for capacitive touch. The device also integrates a 64 MHz internal oscillator, programmable reference and comparator modules, and self-programming Flash for bootloader designs. Typical applications include low-power battery sensors, USB-less human-interface panels, HVAC controls, industrial data loggers, and capacitive-touch front panels where the CTMU simplifies the touch firmware. Designers also use it in portable medical accessories, e-metering, and home appliances. When designing with the PIC18LF45K22-E/ML, place the VDD/VSS bulk and bypass capacitors within 5 mm of the pins and reserve the exposed pad (EP) for thermal and ground connection. Verify your compiler is MPLAB XC8-aware and that your programmer supports ICSP on the four-pin PGx/PGC/PGD/MCLR interface. This page consolidates distributor pricing, parameter-matched drop-in alternatives, and practical design notes for the PIC18LF45K22-E/ML that go beyond what is in the Microchip datasheet. All cross-references, current pricing, and lifecycle signals were re-verified on 2026-09-29.

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PIC18LF45K22-E/MV - 8-bit PIC XLP MCU 32KB Flash 48MHz | Microchip
PIC18LF45K22-E/MV

PIC18LF45K22-E/MV - 8-bit PIC XLP MCU 32KB Flash 48MHz | Microchip

The Microchip Technology PIC18LF45K22-E/MV is an 8-bit PIC18 microcontroller featuring 32 KB (16K x 16) of Flash program memory, 1536 bytes of RAM, and 256 bytes of EEPROM, running at up to 48 MHz. It is housed in a 40-pin UQFN (5x5 mm) package with exposed pad (MV suffix) and operates from 1.8 V to 3.6 V, making it a member of the nanoWatt XLP (eXtreme Low Power) family. A microcontroller (MCU) is a single-chip computer containing a CPU, Flash program memory, SRAM data memory, EEPROM, and a rich set of peripherals such as ADC, timers, UART, I2C, and SPI. The PIC18LF45K22 belongs to Microchip's PIC18 8-bit family, which sits below the 16-bit dsPIC/PIC24 families and above the PIC16 baseline family in Microchip's 8-bit microcontroller hierarchy. The "LF" prefix indicates the low-voltage (1.8-3.6 V) variant, while the "K" series adds the enhanced peripherals and XLP power-saving features. Key features include 10-bit ADC with up to 28 channels, 36 digital I/O pins, 4 timers, 2 comparators, an enhanced PWM module, mTouch capacitive-touch support, and nanoWatt XLP technology offering sleep currents as low as a few nA. The 40-pin UQFN package integrates an exposed thermal pad to improve theta-JA, while the small 5x5 mm footprint suits compact handheld and battery-powered designs. Internally, the PIC18LF45K22 uses a RISC-based Harvard architecture with a 16-bit instruction word and an 8-bit data path. It supports hardware multiply, prioritised interrupts, peripheral pin-select (PPS), and a wide peripheral set including USB-ready comparators and SPP/EUSART modules. XLP power management enables multiple sleep modes with fast wake-up, making it suitable for always-on sensor applications. Typical applications include consumer electronics such as wearable health monitors, small appliance controllers, and USB peripherals; industrial sensor nodes and metering; low-power IoT edge nodes; automotive body controllers; and educational/development platforms. Designers leverage its rich peripheral mix to minimise external components. When designing with this part, observe the 1.8 V minimum supply to ensure Flash program/erase reliability, and use a 1 uF + 100 nF bulk-decoupling pair within a few millimetres of the VDD pins. Program/debug interfaces use ICSP over PGED1/PGEC1, supported by MPLAB X IDE and PICkit/Snap tools. This page synthesises distributor pricing, drop-in alternatives from Microchip's PIC18 K22 family, and practical design notes not collected in a single place in the manufacturer datasheet, providing a single reference for component selection.

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PIC18LF45K22-E/P - 32KB Flash XLP 8-bit MCU, 40-PDIP | Microchip
PIC18LF45K22-E/P

PIC18LF45K22-E/P - 32KB Flash XLP 8-bit MCU, 40-PDIP | Microchip

The Microchip Technology PIC18LF45K22-E/P is a low-power, high-performance 8-bit PIC microcontroller in the nanoWatt XLP family, housed in a 40-pin PDIP (Plastic DIP) through-hole package. It integrates 32KB of Flash program memory (16K x 16 words), 2KB of RAM, and 256 bytes of EEPROM, and executes instructions at up to 48 MHz. The device operates from a wide 1.8 V to 3.6 V supply rail, making it ideal for battery-powered and energy-harvesting applications. What is a microcontroller? A microcontroller (MCU) is a single-chip computer that combines a CPU core, non-volatile program memory (Flash), working memory (RAM), data EEPROM, and a rich set of on-chip peripherals (ADC, timers, communication ports, comparators, PWM). PIC18 microcontrollers belong to the 8-bit Harvard-architecture family and sit inside the broader category of embedded microcontrollers -> microcontrollers -> integrated circuits -> semiconductors, and the nanoWatt XLP line represents Microchip's ultra-low-power extension of that family. Key features of the PIC18LF45K22-E/P include nanoWatt XLP technology for sub-µA sleep currents, two Enhanced USART modules, two MSSP (SPI/I2C) modules, a 10-bit ADC with up to 28 input channels, and up to 36 digital I/O pins. Internal oscillator options (up to 16 MHz) and on-chip voltage reference simplify BOM, while the integrated CTMU (Charge Time Measurement Unit) enables touch and capacitive sensing. The architecture separates program and data buses (Harvard), features a 16-bit instruction word, and supports hardware multiply and 31-level priority interrupts. With XLP deep-sleep currents as low as 20 nA (typical, per datasheet), the device is engineered for long-battery-life designs and includes nanoWatt XLP sleep and idle modes. Typical applications include low-power sensor nodes, portable instrumentation, battery-powered medical devices, industrial control panels, USB-CDC peripherals, and educational/development platforms. The 40-pin PDIP package is also preferred for prototyping and hobby applications through-hole assembly is convenient. A critical design tip: the 'E' suffix denotes the Extended temperature range (-40C to +125C); use the '-I/' variant only for commercial 0C to +85C designs. The PIC18LF45K22-E/P (PDIP) is recommended for new designs and replaces the older PIC18F452 in most 40-pin DIP footprints, although peripheral mapping must be verified. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC18LF45K22-E/PT - 8-bit XLP MCU 32KB Flash 44-TQFP | Microchip
PIC18LF45K22-E/PT

PIC18LF45K22-E/PT - 8-bit XLP MCU 32KB Flash 44-TQFP | Microchip

The Microchip PIC18LF45K22-E/PT is an 8-bit PIC18 microcontroller from the nanoWatt XLP family, featuring 32KB of Flash program memory, 1536 bytes of RAM, and 256 bytes of EEPROM, housed in a 44-pin TQFP (10x10 mm) package. It operates at up to 48 MHz (12 MIPS) from a 1.8V to 3.6V supply, with the "LF" prefix denoting the low-voltage variant and the "E" suffix indicating the -40C to +125C extended industrial temperature grade. What is an 8-bit PIC microcontroller? A PIC (Peripheral Interface Controller) is a Harvard-architecture RISC microcontroller originally developed by General Instrument and now produced by Microchip Technology. The PIC18F/LF family extends the original PIC16 baseline with linear memory, a 16-bit instruction word, and a richer peripheral set, while the "LF" voltage range (1.8V to 3.6V) is optimized for battery-powered designs. PIC microcontrollers sit within the broader taxonomy: microcontroller -> embedded controller -> semiconductor -> integrated circuit. Key features of the PIC18LF45K22-E/PT include 32KB (16K x 16) of self-programmable Flash, 1536 bytes of SRAM, and 256 bytes of data EEPROM. The device integrates multiple communication peripherals: two EUSART (Enhanced USART) modules, two MSSP (Master Synchronous Serial Port) modules supporting SPI and I2C, a 12-bit A/D converter with up to 28 channels, and a 5-bit DAC. Its nanoWatt XLP technology provides deep-sleep currents as low as 20 nA typical, making it one of the lowest-power PIC18 variants for energy harvesting or battery-backed applications. At the architectural level, the PIC18LF45K22-E/PT uses a 16-bit enhanced instruction set with hardware multiply and a C-optimized architecture. The core provides an 8 x 8 hardware multiplier, a single-cycle instruction path, and a vectored interrupt controller supporting multiple priority levels. Two capture/compare/PWM modules and one enhanced CCP module enable motor-control, lighting, and power-conversion timing functions. Typical applications include low-power sensor nodes, battery-powered IoT edge devices, portable medical instruments, automotive body and climate modules, industrial control panels, and USB/HID human-interface devices. The combination of low quiescent current, generous RAM for protocol stacks, and a 12-bit ADC makes it a versatile main controller for cost-sensitive embedded designs. A key design consideration is the LF voltage range - this part MUST NOT be used above 3.6V on VDD. If your design requires 5V tolerance, choose the PIC18F45K22 (5V variant) instead. Also confirm TQFP-44 PCB layout footprint matches your existing land pattern, as the same die is offered in 28-pin QFN, 40-pin PDIP, and 44-pin TQFP packages. This page synthesizes distributor pricing across 9 distributors, drop-in alternative comparisons, and practical nanoWatt XLP design notes not always covered in the manufacturer datasheet.

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