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PIC18LF4620T-I/PT - 8-Bit 40MHz 64KB Flash MCU | Microchip
PIC18LF4620T-I/PT

PIC18LF4620T-I/PT - 8-Bit 40MHz 64KB Flash MCU | Microchip

The Microchip Technology PIC18LF4620T-I/PT is an 8-bit PIC18 microcontroller featuring a 40 MHz maximum CPU clock, 64 KB of Enhanced Flash program memory, and a 44-pin TQFP (10x10 mm) surface-mount package. The "LF" prefix indicates a low-voltage variant supporting operation from 2.0 V to 5.5 V, while the "T" suffix denotes tape-and-reel packaging and the "I" indicates the industrial -40 °C to +85 °C operating temperature range. The device delivers 10 MIPS performance and is suitable for both battery-powered and line-powered embedded applications. A PIC18 microcontroller is a member of Microchip's 8-bit RISC architecture family, sitting within the broader taxonomy of microcontrollers -> microcontrollers -> integrated circuits -> semiconductors. The PIC18 family uses a 16-bit instruction word with an 8-bit data path, providing an enhanced instruction set over earlier PIC16 devices while maintaining full code compatibility with the PIC16 mid-range core. The "nanoWatt Technology" branding refers to Microchip's power-management features including multiple idle and sleep modes, oscillator start-up timers, and ultra-low-power Real-Time Clock/Calendar operation. Key features include 64 KB (32 K x 16) flash program memory, 3968 bytes of RAM, 1024 bytes of EEPROM, a 10-bit Analog-to-Digital Converter (ADC) with up to 13 input channels, multiple communication peripherals (EUSART, MSSP for SPI/I2C), and four 8-bit/16-bit timers. The device supports up to 36 digital I/O pins, hardware multiplier, and enhanced Capture/Compare/PWM (ECCP) modules, enabling direct motor control, power-conversion, and lighting applications without external logic. The PIC18LF4620T-I/PT integrates nanoWatt power-management technology with multiple low-power modes (RUN, IDLE, SLEEP) and a fast wake-up from sleep with 1 µs typical response. The internal RC oscillator and PLL options support flexible clock configurations from 31 kHz to 40 MHz. The architecture also supports in-circuit serial programming (ICSP) and in-circuit debugging (ICD) via MPLAB tools, allowing field firmware upgrades and real-time development. Typical applications include industrial automation controllers, automotive body electronics, USB peripherals, sensor signal conditioning, smart-card readers, and consumer appliances. The wide voltage range (2.0 V to 5.5 V) makes it particularly well suited to battery-powered devices such as portable instrumentation and remote sensors. The 64 KB flash provides sufficient code space for graphical user interfaces, protocol stacks (Modbus, LIN), and over-the-air (OTA) firmware update routines. When designing with this device, consider using the PIC18F4620 (5 V only) variant for cost-sensitive line-powered designs, or PIC18LF45K80 (lower power with enhanced peripherals) for battery applications. Always consult the PIC18F4620 family datasheet for ADC acquisition-time calculations, MSSP timing margins, and CCP PWM resolution trade-offs at system clock frequencies above 25 MHz. This page synthesizes distributor pricing, same-brand drop-in alternatives (PIC18LF4620-I/PT, PIC18F4620T-I/PT, etc.), and practical design notes not found in the manufacturer datasheet alone.

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PIC18LF4680-I/ML - 8-Bit 40MHz MCU 64KB Flash ECAN 44-QFN | Microchip
PIC18LF4680-I/ML

PIC18LF4680-I/ML - 8-Bit 40MHz MCU 64KB Flash ECAN 44-QFN | Microchip

The Microchip Technology PIC18LF4680-I/ML is a low-power 8-bit PIC18 microcontroller with 64 KB of Flash program memory and an integrated Enhanced CAN (ECAN) module, housed in a 44-pin QFN (8x8 mm) package. It operates from 2.0 V to 5.5 V and runs up to 40 MHz, targeting cost-sensitive embedded designs that require on-chip CAN, LIN-capable UART, and moderate analog performance. Key features include 64 KB (32K x 16) of self-programmable Flash, 3328 bytes of RAM, 1024 bytes of EEPROM, 11 channels of 10-bit ADC, and 36 digital I/O pins. The LF variant uses an advanced CMOS process with nanoWatt technology, providing low sleep current and idle current optimizations suited for battery-powered industrial and automotive subsystems. The PIC18F4680 family architecture pairs a 16-bit modified Harvard core with a wide peripheral set: two Enhanced USART modules, MSSP for SPI/I2C, two Capture/Compare/PWM modules, an Enhanced CAN 2.0B controller with hardware filtering, and a 10-bit 11-channel ADC. The ECAN controller implements CAN 2.0A/B with DeviceNet and CANopen filtering capability, removing the need for an external CAN transceiver controller in many node designs. Typical applications include industrial CAN nodes (sensor hubs, motor controllers), automotive body and chassis ECUs, building automation (BACnet or CAN-based HVAC), and medical instrumentation with battery-backed operation. The wide VDD range (2.0 V to 5.5 V) allows direct connection to 3.3 V or 5 V rails and 2-cell Li-ion battery stacks. Designers should pair this MCU with a 3.3 V CAN transceiver such as the MCP2551 or MCP2561 and a precision LDO such as the MCP1700 for the analog supply. A 20 MHz or 40 MHz crystal or resonator is required for CAN-bus synchronization; ECAN bit-timing relies on Fosc accuracy. For firmware development, MPLAB X IDE, XC8 compiler, and MPLAB Code Configurator support code generation for ECAN, ADC, and PWM peripherals. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC18LF4680T-I/PT - 40MHz 8-bit MCU w/ CAN & 64KB Flash | Microchip
PIC18LF4680T-I/PT

PIC18LF4680T-I/PT - 40MHz 8-bit MCU w/ CAN & 64KB Flash | Microchip

The Microchip Technology PIC18LF4680T-I/PT is an 8-bit RISC microcontroller from the PIC18F family, featuring a 40MHz PIC18 CPU core with 12 MIPS performance, 64KB (32K x 16) of Flash program memory, 3.25KB (3328 bytes) of data RAM, and 1KB of data EEPROM. It is housed in a 44-pin TQFP (10x10 mm) surface-mount package and supports 36 general-purpose I/O lines plus up to 34 I/O ports. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, volatile data memory, peripherals, and I/O into one package. The PIC18F family sits within the broader taxonomy of microcontroller -> embedded controller -> semiconductor -> integrated circuit. The 'LF' prefix designates the low-voltage F-series variant operating across 2.0V to 5.5V, which targets battery-powered and energy-conscious designs via Microchip's nanoWatt Technology for dynamic power management. Key features include an integrated Enhanced CAN (ECAN) module, hardware USART, I2C, SPI, and Parallel Slave Port (PSP) interfaces, 11 channels of 10-bit ADC, two capture/compare/PWM (CCP) modules, and an enhanced capture/compare/PWM (ECCP) module. The device also integrates a 16-bit timer, two 8-bit timers, and nanoWatt power management including idle, sleep, and run modes with on-the-fly clock switching. The architecture pairs a Harvard-style CPU with separate program and data buses, which lets the 40MHz oscillator fetch instructions in parallel with data accesses for deterministic throughput. The Enhanced CAN module provides hardware acceptance filters, multiple transmit/receive buffers, and supports both standard and extended identifiers, removing the host CPU from heavy protocol processing. Typical applications include automotive body and chassis networks, industrial CAN-based sensor hubs, building automation gateways, embedded control boards, and portable medical devices. The wide 2.0-5.5V operating range and nanoWatt modes also make it suitable for battery-backed telemetry nodes and remote sensor interfaces. When designing with the PIC18LF4680T-I/PT, ensure decoupling capacitors are placed within 4mm of each power pin, and that the CAN bus is terminated with 120 ohm resistors at each end of the network. The 'T' suffix denotes tape-and-reel packaging for high-volume assembly, while the 'I' grade indicates an operating temperature range of -40C to +85C suitable for industrial environments. This page synthesizes distributor pricing, drop-in TQFP-44 alternatives, and practical design notes drawn from the PIC18F2585/2680/4585/4680 datasheet, providing context not found in any single manufacturer or distributor page.

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PIC18LF4682-I/ML - 8-bit MCU, 80KB Flash, ECAN, 44-QFN | Microchip
PIC18LF4682-I/ML

PIC18LF4682-I/ML - 8-bit MCU, 80KB Flash, ECAN, 44-QFN | Microchip

The Microchip Technology PIC18LF4682-I/ML is an 8-bit PIC18 microcontroller featuring 80KB of Flash program memory, 3KB of SRAM, 1024 bytes of EEPROM, and an integrated Enhanced CAN (ECAN) module, housed in a 44-pin QFN (8x8 mm) package. It operates at up to 40MHz (10 MIPS) from a 2.0V to 5.5V supply and provides 34 digital I/O pins plus a rich peripheral set including a 10-bit ADC, multiple USART/SPI/I2C interfaces, and nanoWatt power management for low-power designs. A PIC18 microcontroller is part of Microchip's high-performance 8-bit RISC architecture family, designed for embedded control applications that need deterministic response, ample on-chip memory, and rich connectivity in a single chip. Within the broader taxonomy, PIC18 devices belong to microcontroller -> embedded processor -> semiconductor device category, and they remain one of the longest-supported 8-bit MCU lines in the industry. Key features of the PIC18LF4682 include 80KB (40K x 16) self-programmable Flash, 1024-byte EEPROM with endurance rated for high write cycles, hardware ECAN controller for CAN 2.0B protocol, 4 timers, 2 capture/compare/PWM modules, 2 comparators, 10-bit ADC with up to 11 channels, and nanoWatt technology that supplies multiple power-managed modes including Sleep with nanowatt-level current. The 'LF' prefix denotes the extended low-voltage variant supporting 2.0V operation. The architecture combines a Harvard-bus RISC core with a C-optimized instruction set and a 31-level hardware stack. With 10 MIPS throughput and a 16-bit wide instruction path, the PIC18LF4682 executes most instructions in one cycle, simplifying timing analysis for real-time control. The 44-QFN (ML) package adds an exposed thermal pad for improved thermal dissipation and supports industrial-grade operating temperature. Typical applications include industrial CAN-bus nodes, automotive body and sensor ECUs (non-safety-critical), HVAC controllers, building automation, motor-control companion processors, and USB/CAN-bridge gateways. The combination of ECAN, 80KB Flash, and 2.0V low-voltage operation makes it particularly suited to distributed industrial sensor networks. When designing with this part, ensure the ECAN bus is properly terminated with 120 ohm resistors and that the QFN thermal pad is soldered to a sufficient copper pour. The internal oscillator can save cost and board space, but critical timing applications (CAN, UART) typically use an external crystal for accuracy. This page combines manufacturer datasheet specifications, current distributor pricing and stock, drop-in alternative MPNs, and design notes curated from typical application patterns not always present in the datasheet summary.

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PIC18LF4682-I/P - 8-Bit MCU, 80KB Flash, ECAN, 40-PDIP | Microchip
PIC18LF4682-I/P

PIC18LF4682-I/P - 8-Bit MCU, 80KB Flash, ECAN, 40-PDIP | Microchip

The Microchip Technology PIC18LF4682-I/P is an 8-bit RISC microcontroller from the PIC18F family, featuring 80KB (40K x 16) of enhanced Flash program memory, 3.25KB of SRAM, and 1KB of EEPROM in a 40-pin PDIP (DIP-40) through-hole package. It operates at up to 40 MHz, supports an operating voltage range of 2.0V to 3.6V (LF/low-voltage variant), and integrates a 10-bit Analog-to-Digital Converter plus an Enhanced CAN (ECAN) module for robust industrial networking. An 8-bit microcontroller (MCU) is a single-chip computer optimized for embedded control. PIC18F-series MCUs are CISC-architecture 8-bit cores from Microchip, widely used in automotive body electronics, industrial control, and consumer appliances. Within the broader taxonomy, the PIC18LF4682 belongs to the PIC18F -> 8-bit MCU -> microcontroller -> embedded computing -> semiconductor family. The LF suffix indicates a low-voltage core that operates down to 2.0V, in contrast to the standard F variant which operates down to 4.2V. Key features include nanoWatt technology for low-power Sleep and Idle modes, an enhanced CAN 2.0B controller with acceptance filters, an enhanced USART, MSSP (SPI/I2C), and up to 36 I/O pins. The 80KB Flash supports self-programming under firmware control, enabling in-field bootloaders, and the 10-bit ADC provides up to 11 channels with acquisition-time control. The PIC18F4682 architecture uses a 16-bit instruction word with an 8-bit data path, offering 1MIPS/MHz performance and a hardware multiply engine. Peripherals are mapped via SFRs with context-switching support for RTOS use, and the ECAN module provides bit-stuffing, acceptance filtering, and bus-fault diagnostics for ISO 11898 networks. Typical applications include CAN-based industrial sensor nodes, automotive body and chassis ECUs, HVAC control boards, motor-control front-ends, and battery-powered metering. The 40-PDIP package supports hand-soldered prototyping and through-hole production runs. When designing, verify that the supply rail stays within 2.0V-3.6V across temperature; the LF core does not tolerate 5V. Use Microchip's MPLAB X IDE and the MPLAB ICD 3 or PICkit 5 for programming. Provide a 0.1uF decoupling capacitor within 5 mm of each VDD/VSS pair. This page synthesizes distributor pricing, same-brand drop-in alternatives, and design notes not found on the manufacturer datasheet, optimized for engineers evaluating the PIC18LF4682-I/P for new designs or field replacements.

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PIC18LF4685-I/ML - 8-bit 40MHz MCU 96KB Flash ECAN 44-QFN | Microchip
PIC18LF4685-I/ML

PIC18LF4685-I/ML - 8-bit 40MHz MCU 96KB Flash ECAN 44-QFN | Microchip

The Microchip Technology PIC18LF4685-I/ML is an 8-bit PIC® RISC microcontroller with 40 MHz (10 MIPS) core speed, 96 KB (48K x 16) of Flash program memory, 3 KB of SRAM and 1 KB of EEPROM, housed in a 44-pin QFN (8 mm x 8 mm) package with an exposed thermal pad. The device integrates a 10-bit ADC, an ECAN™ (Enhanced CAN) module, nanoWatt Technology power management, and an instruction set optimized for C-compiled code. A microcontroller (MCU) is a single-chip computer containing a CPU core, program and data memory, peripherals, and I/O. The 8-bit PIC® family sits in the low-power, deterministic-control segment of the MCU market, between 4-bit legacy controllers and 16/32-bit Cortex-M devices, and is widely used for cost-sensitive embedded control, sensor interfacing, and automotive/industrial communication via CAN. The PIC18LF4685 specifically targets low-voltage (LF = 2.0–3.3 V) designs that require CAN connectivity. Key features include 10 MIPS throughput, hardware ECAN 2.0B, 10-bit ADC up to 100 ksps with up to 11 channels, nanoWatt Technology with multiple idle/sleep modes, an 8 x 8 hardware multiplier, and an ICD (In-Circuit Debug) interface. The wide operating voltage of 2.0–3.3 V and extended industrial temperature range (-40 °C to +85 °C) make the part suitable for battery-powered and automotive-grade designs. The architecture is a Harvard-modified RISC core with separate program and data buses, 31-level hardware stack, and 75+ instructions including hardware multiply. The ECAN module supports both standard and extended identifiers with acceptance filters, while the 10-bit ADC uses an internal sample-and-hold and can be auto-triggered from timers or PWM edges, reducing CPU overhead in motor-control and sensor-conditioning loops. Typical applications include automotive ECAN nodes (body control, instrument clusters, sensor interfacing), industrial CAN-based distributed control, low-power sensor hubs, and consumer appliances requiring CAN connectivity. The combination of Flash self-programmability and robust peripherals makes it suitable for designs that must be field-upgradable over the CAN bus. When designing with this device, ensure that the CAN bus termination, transceiver (e.g. MCP2551), and stub length are matched to the chosen bit rate (up to 1 Mbps). For low-power operation, use nanoWatt sleep modes and verify ADC sampling times against the chosen analog source impedance to avoid linearity errors. This page synthesizes distributor pricing, same-brand drop-in alternatives (notably PIC18LF4585-I/ML in the same 44-QFN footprint), and practical CAN/ECAN design notes not found in the manufacturer datasheet.

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PIC18LF4685-I/P - 8-bit 40MHz 96KB Flash MCU w/ECAN | Microchip
PIC18LF4685-I/P

PIC18LF4685-I/P - 8-bit 40MHz 96KB Flash MCU w/ECAN | Microchip

The Microchip Technology PIC18LF4685-I/P is an 8-bit PIC18F-family flash microcontroller (MCU) running at up to 40 MHz with 96 KB of on-chip flash program memory, 3 KB of SRAM, and 1 KB of EEPROM, housed in a 40-pin PDIP through-hole package. It integrates a 10-bit multi-channel ADC, an Enhanced CAN (ECAN) module, nanoWatt power management, and the rich PIC18 peripheral set (CCP/ECCP, MSSP SPI/I2C, USART, comparators). The 'LF' prefix denotes the 2.0 V to 3.8 V low-voltage process variant intended for low-power and battery-fed designs, and the -I suffix confirms the -40C to +85C industrial operating range. What is a PIC18F flash MCU? The PIC18F family is Microchip's high-end 8-bit microcontroller line, combining an enhanced RISC architecture with on-chip flash, nanoWatt power-saving modes, and integrated peripherals. PIC18 microcontrollers sit in the hierarchy as follows: 8-bit MCU -> microcontroller -> embedded controller -> semiconductor IC. They are widely deployed where deterministic performance, low power, and easy in-circuit reprogrammability are required. Key features of the PIC18LF4685 include 75 instructions with 16-bit instruction width, hardware multiplier for 8x8 unsigned multiplication in one cycle, ECAN controller for automotive and industrial networking, and nanoWatt features such as alternate oscillator modes, sleep current in the microamp range, and selective peripheral disable. The 40-pin PDIP package exposes up to 36 I/O pins depending on peripheral configuration, with 13 ADC channels and 2 comparators on-chip. Typical applications include CAN-based industrial automation nodes, automotive body and chassis modules running on 12 V rails, low-power sensor hubs, and small appliance controllers. The wide operating voltage and broad peripheral set also make it suitable for building automation and HVAC peripherals where robust field communication is required. When designing with this part, ensure the supply stays within 2.0 V to 3.8 V for the 'LF' process; running above 3.8 V requires the PIC18F4685 (standard 'F' process). Decouple VDD with 100 nF plus bulk capacitance, and configure the ECAN baud-rate and oscillator carefully per the Microchip CAN bit-timing guide. In-circuit serial programming (ICSP) via PGD/PGC is supported through dedicated pins. This page synthesizes distributor pricing, same-package drop-in alternatives drawn from the Site MPN list, comparison data, and practical design notes not found in the manufacturer datasheet alone, giving engineers a single reference for procurement and design decisions.

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PIC18LF4685-I/PT - 8-Bit MCU, 96KB Flash, ECAN, TQFP-44 | Microchip
PIC18LF4685-I/PT

PIC18LF4685-I/PT - 8-Bit MCU, 96KB Flash, ECAN, TQFP-44 | Microchip

The Microchip Technology PIC18LF4685-I/PT is a high-performance 8-bit PIC18 microcontroller with 96KB of Flash program memory, 3.25KB of RAM, and 1KB of EEPROM, integrated into a 44-pin TQFP (10x10 mm) package. It belongs to the PIC18F46xx family and features an enhanced CAN (ECAN) module, a 10-bit ADC with up to 13 channels, and nanoWatt power management technology for low-power applications. The CPU core is a RISC architecture delivering up to 10 MIPS at 40 MHz operation, supported by a 16-bit instruction set and hardware multiplier. A microcontroller (MCU) is a single-chip computer containing a processor, memory, and peripherals designed for embedded control. Within the semiconductor hierarchy, an 8-bit MCU like the PIC18LF4685 occupies the tier below 32-bit microcontrollers (e.g., ARM Cortex-M) and above simple programmable logic, optimized for cost-sensitive, deterministic control loops. The PIC18 family specifically targets applications needing CAN networking, analog integration, and automotive-grade reliability in a single device. Key features of the PIC18LF4685 include a wide operating voltage range of 2.0V to 5.5V (LF variant), nanoWatt technology for sleep currents below 100 nA, and an enhanced CAN 2.0B module supporting both standard and extended identifiers. The 10-bit ADC supports up to 13 input channels with auto-acquisition, while hardware PWM modules include Capture/Compare/PWM (CCP) and Enhanced CCP (ECCP) peripherals. The device integrates an 8x8 hardware multiplier, multiple serial protocols (I2C, SPI, USART with IrDA), and supports In-Circuit Serial Programming (ICSP) for field updates. The PIC18LF4685 architecture uses a 16-bit modified Harvard structure with separate program and data buses, enabling single-cycle instruction execution with a two-stage pipeline. The ECAN module includes acceptance filters, masks, and time-stamping, making the MCU suitable for industrial and automotive networked nodes. nanoWatt features like Sleep mode, Idle mode, and selective peripheral shutdown reduce quiescent current for battery-backed designs, while the on-chip 32 kHz oscillator supports real-time clock operation without external crystals. Typical applications include automotive body and powertrain ECUs, industrial CAN nodes, sensor interface boards, and motor control subsystems. The combination of ECAN, ADC, and PWM peripherals enables single-chip BLDC motor controllers, HVAC actuators, and OBD-II diagnostic interfaces. The LF voltage range (2.0V-3.6V typical, 5.5V max) makes it compatible with 3.3V and 5V mixed-signal designs. When designing with this device, ensure the CAN bus is terminated with 120-ohm resistors at both ends of the segment. Decouple VDD with at least 100 nF ceramic capacitors placed within 5 mm of the power pins, and use a dedicated ground plane to minimize EMI on the high-speed CAN lines. The MCLR pin should be pulled high through a 10 kohm resistor unless external reset is required. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes from Microchip datasheet DS39661B, going beyond the manufacturer datasheet alone.

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PIC18LF4685T-I/ML - 96KB Flash 40MHz 8-bit MCU | Microchip
PIC18LF4685T-I/ML

PIC18LF4685T-I/ML - 96KB Flash 40MHz 8-bit MCU | Microchip

The Microchip Technology PIC18LF4685T-I/ML is a 96 KB Flash, 8-bit RISC microcontroller from the PIC18F family, operating up to 40 MHz in a 44-pin QFN (8x8 mm) exposed-pad package with tape-and-reel packaging. The LF variant extends operating voltage from 2.0 V down for low-power portable applications while retaining the standard 4.2 V to 5.5 V industrial range, and integrates 3 KB of SRAM plus 1 KB of EEPROM for non-volatile parameter storage. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, optimized for deterministic real-time control in embedded systems. Within the broader semiconductor hierarchy, the PIC18F family sits between 16-bit PIC24/dsPIC devices and lower-pin-count PIC16 parts, targeting mid-range CAN-enabled and motor-control designs. The PIC18LF4685T-I/ML belongs to the power-managed LF sub-family, which adds nanoWatt technology for sleep currents under 100 nA typical, making it suitable for battery-powered industrial nodes. Key features include the ECAN module (Enhanced Controller Area Network) for automotive and industrial CAN 2.0B communications, a 10-bit ADC with up to 13 input channels and 100 Ksps conversion rate, three CCP/ECCP modules for PWM generation (ideal for motor and power-converter control), and the standard PIC18 peripheral set of USART, MSSP (SPI/I2C), and parallel slave port. The 96 KB Flash program memory (48K x 16 words) supports self-programming under bootloader control, and the 1 KB internal EEPROM enables data logging without external memory. The architecture is an enhanced PIC18 Harvard RISC core with a hardware multiplier (8x8 in one cycle), a 31-level hardware stack, and vectored interrupts. Two prioritized interrupt controllers and peripheral pin select (PPS) simplify mixed-signal PCB routing. The instruction set is fully backward-compatible with the PIC16 family, allowing legacy code migration. Typical applications include automotive body and chassis ECUs requiring CAN bus connectivity, industrial control nodes on 12-24 V bus systems, BLDC and stepper motor control with three-phase PWM, and smart sensor nodes with on-board EEPROM parameter storage. Designers value the LF variant's 2.0 V minimum Vdd for two-AA-cell powered systems. When designing with this part, allocate the exposed thermal pad (EP) to a continuous ground pour to meet the package's thermal resistance of approximately 22 C/W. Use Microchip's MPLAB X IDE and the PICkit 5 or ICD 4 for in-circuit debug; production programming is supported by MPLAB PM3 or the PICkit 5 standalone mode. This page synthesizes distributor pricing, pin-compatible drop-in alternatives from the PIC18 family, and practical design notes not collected in any single manufacturer datasheet, helping engineers select and source this MCU quickly.

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PIC18LF46J11T-I/ML - 8-Bit 48MHz 64KB Flash MCU | Microchip
PIC18LF46J11T-I/ML

PIC18LF46J11T-I/ML - 8-Bit 48MHz 64KB Flash MCU | Microchip

The Microchip Technology PIC18LF46J11T-I/ML is an 8-bit PIC18J-family microcontroller with 64KB Flash, 3.8KB RAM, 34 I/O pins, and a 48MHz (12 MIPS) CPU core, housed in a 44-pin QFN (8x8 mm) package with exposed pad. The 'T' suffix denotes Tape & Reel packaging and the 'I' suffix denotes the -40C to +85C industrial temperature range. The 'LF' prefix indicates the low-voltage (2.0V-3.6V) variant of the PIC18F46J11, designed for nanoWatt XLP (eXtreme Low Power) operation with Deep Sleep current below 100 nA typical. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (Flash), volatile data memory (RAM), and peripheral set onto one silicon die. MCUs form the lowest tier of the embedded computing hierarchy and serve as the decision-making core inside cost-sensitive products such as sensor nodes, white goods, and USB peripherals. The 8-bit PIC architecture uses a Harvard RISC design with a single accumulator and a hardware multiplier, optimized for deterministic interrupt response and low code size per instruction. The PIC18LF46J11 features Peripheral Pin Select (PPS), allowing most digital peripherals to be remapped to any I/O pin via software configuration, which simplifies routing in mixed-signal designs. It includes a 10-bit ADC with up to 13 channels, two analog comparators, two CCP/ECCP modules, four 16-bit timers, two I2C/SPI ports, and two enhanced USART modules. Communication interfaces include I2C, SPI, and UART/USART, enabling direct connection to sensors, displays, EEPROM, and host processors without external glue logic. The 64KB self-programmable Flash supports run-time firmware updates via ICSP (In-Circuit Serial Programming) or the on-chip bootloader, while the 3.8KB RAM and 256-byte EEPROM provide ample scratch space for protocol stacks. Power management features include nanoWatt XLP technology, idle/doze/sleep modes, ultra-low-power wake-up, and a Deep Sleep mode with RTC retention. Typical applications include industrial sensor interfaces, USB device peripherals, energy harvesting controllers, low-power wireless sensor nodes, and small-form-factor consumer electronics. The wide VDD range makes it compatible with both single-cell Li-ion and 3.3V regulated rails. When designing with the PIC18LF46J11, leave thermal relief around the exposed pad (EP) of the QFN-44 package to ensure ground continuity and reduce die-to-PCB thermal resistance; missing EP soldering is a common reliability issue with QFN parts. Use MPLAB X IDE with XC8 compiler for code development, and budget PPS remapping early in schematic capture because most peripherals are pin-flexible.

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PIC18LF46J11T-I/PT - 8-bit 48MHz 64KB Flash MCU | Microchip
PIC18LF46J11T-I/PT

PIC18LF46J11T-I/PT - 8-bit 48MHz 64KB Flash MCU | Microchip

The Microchip Technology PIC18LF46J11T-I/PT is an 8-bit PIC18 microcontroller with nanoWatt XLP technology, delivering 12 MIPS throughput at 48 MHz CPU speed while consuming very low active and sleep currents. It integrates 64 KB of Flash program memory (32K x 16) and 3.8 KB of RAM, and is housed in a 44-pin TQFP (10x10 mm) package with 34 user I/O pins. What is an 8-bit microcontroller? An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path that integrates a CPU, non-volatile program memory (Flash), volatile data memory (RAM), and a rich set of peripherals such as timers, ADC, communication interfaces, and I/O. Within the broader semiconductor taxonomy, an MCU is a sub-class of microcontroller -> microprocessor -> digital IC -> semiconductor. The PIC18F/LF family from Microchip is widely used in cost-sensitive embedded applications where deterministic real-time performance, low power, and a stable peripheral set are required. Key features of the PIC18LF46J11T-I/PT include: a high-performance RISC architecture with 16-bit wide instructions and 8-bit data path; an internal 31 kHz to 8 MHz oscillator with PLL up to 48 MHz; multiple low-power sleep modes (Deep Sleep, Run, Idle, Doze); Peripheral Pin Select (PPS) for flexible signal routing; hardware peripherals including 12-bit ADC, multiple PWM outputs, comparators, and enhanced USART, SPI, and I2C; and a wide operating voltage range suitable for 2.0 V to 3.6 V (LF variant) battery-powered designs. The 'LF' prefix indicates low-voltage Flash (F) operation, while the 'T' suffix denotes Tape and Reel packaging and 'I' indicates the -40C to +85C industrial temperature range. Architecturally, the PIC18LF46J11 uses a 16-bit instruction word with an 8-bit data path and a hardware multiplier, allowing single-cycle MAC operations and efficient C compilation. The device implements nanoWatt XLP technology, providing sub-uA Deep Sleep current and RTC operation directly from a coin cell. The integrated Peripheral Pin Select (PPS) remaps most digital peripherals to any user I/O, dramatically simplifying PCB layout when changing pin assignments. Typical applications include USB device/host peripherals, graphics and segment LCD driving, industrial sensor hubs, low-power portable instruments, and consumer devices that require rich connectivity (USB, I2C, SPI) within a small board footprint. Compared to Cortex-M0+ MCUs, the PIC18LF46J11T-I/PT offers deterministic interrupt latency and a small, mature toolchain (MPLAB X, XC8). Where to download the datasheet PDF: the manufacturer product page links directly to the official PDF. When designing with this device, ensure that VDD decoupling (100 nF + bulk) is placed within 5 mm of each supply pin, and verify that the chosen LF operating voltage (2.0 V to 3.6 V) matches your battery or LDO output. Retention and endurance of the on-chip Flash follow the manufacturer datasheet figures, not estimates. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing engineers with an at-a-glance decision matrix for selecting the PIC18LF46J11T-I/PT versus its 44-pin TQFP family peers.

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PIC18LF46J13-I/ML - 8-bit 48MHz XLP 64KB Flash MCU 44-QFN
PIC18LF46J13-I/ML

PIC18LF46J13-I/ML - 8-bit 48MHz XLP 64KB Flash MCU 44-QFN

The Microchip Technology PIC18LF46J13-I/ML is an 8-bit PIC18 microcontroller belonging to the PIC18 J-series family, featuring nanoWatt XLP (eXtreme Low Power) technology. It operates at up to 48 MHz (12 MIPS) from a 2.0 V to 3.6 V supply, integrating 64 KB of Flash program memory and 4 KB of RAM in a 44-pin QFN (8x8 mm) package. The part is qualified for the industrial -40C to +85C temperature range (I-grade). An 8-bit microcontroller (MCU) is a small computer-on-a-chip that integrates a CPU, memory, and peripherals into a single silicon die. The PIC18F/LF family uses a modified Harvard RISC architecture with a 16-bit instruction word and 8-bit data path, positioned in Microchip's lineup between the 16-bit PIC24/dsPIC and the baseline 8-bit PIC10/12/16 series. The J-series adds ultra-low-power sleep modes (XLP, <100 nA typical) and peripheral-rich I/O - the PIC18LF46J13 specifically targets battery-powered and energy-harvesting designs where the LF (low-voltage) variant's 2.0 V minimum is required. Key differentiating features include 64 KB self-programmable Flash, 4 KB RAM, 40 digital I/O pins, two SPI, two I2C, and two USART/EUSART channels, plus a 12-bit ADC with up to 13 channels. The XLP technology delivers typical sleep currents below 100 nA with RTC running, making the LF46J13 well suited for products that spend most of their life in deep sleep. The on-chip RTCC (Real-Time Clock and Calendar) module eliminates the need for an external RTC in many designs, further reducing BOM cost. Architecturally, the PIC18LF46J13 uses a 2-stage pipeline with hardware multiply, an 8x8 hardware multiplier, and CLC (Configurable Logic Cell) peripherals for glueless logic integration. The CTMU (Charge Time Measurement Unit) enables capacitive touch sensing without an external IC. The peripheral set is anchored by five 16-bit timers, two comparators with DAC reference, and an enhanced PWM with up to 9 outputs. Programming is supported through ICSP (In-Circuit Serial Programming) and JTAG boundary scan. Typical applications include battery-powered sensor nodes, portable medical devices, remote controls, smart metering, HVAC thermostats, wearable fitness bands, and IoT edge nodes. Industrial designs leverage the -40C to +85C operating range and 5V-tolerant digital inputs (within the 3.6 V VDD limit). Design consideration: pair the LF46J13 with a low-quiescent LDO (such as Microchip MCP1700) and an external 32.768 kHz crystal on SOSCO/SOSCI pins to achieve RTC accuracies within +/-20 ppm. For capacitive touch, route sensor traces with grounded guard rings and keep I/O drive strength at the lowest setting that meets response time. This page synthesizes distributor pricing, drop-in same-family alternatives, and XLP design notes that are not consolidated in the manufacturer datasheet.

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PIC18LF46J13-I/PT - 8-bit XLP 48MHz MCU 64KB Flash | Microchip
PIC18LF46J13-I/PT

PIC18LF46J13-I/PT - 8-bit XLP 48MHz MCU 64KB Flash | Microchip

The Microchip Technology PIC18LF46J13-I/PT is a low-power 8-bit PIC microcontroller from the PIC® XLP™ 18J family, featuring 64KB (32K x 16) of Flash program memory, 3.8KB RAM, and 48MHz (12 MIPS) CPU performance in a 44-pin TQFP (10x10mm) package. Operating from 2.0V to 3.6V, the device delivers ultra-low-power nanoWatt XLP technology with deep sleep currents in the nanoampere range. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, Flash program memory, and a rich set of peripherals on a single silicon die. PIC microcontrollers use a RISC (Reduced Instruction Set Computer) Harvard architecture with separate program and data buses, providing deterministic execution and excellent code density. The 'F' series parts (PIC18F) operate from 2.0V–5.5V, while the 'LF' variants (PIC18LF) are optimized for lower-voltage 2.0V–3.6V operation with reduced power consumption, and sit within the broader category hierarchy: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor IC. Key features include 34 digital I/O pins, a 10/12-bit ADC, multiple PWM modules, I2C/SPI/EUSART communication peripherals, and a 32kHz secondary oscillator for low-power Real-Time Clock operation. The XLP nanoWatt technology provides ultra-low sleep currents suitable for battery-powered designs, and the integrated RTCC (Real-Time Clock and Calendar) with on-chip tuning enables accurate timekeeping without external crystals. The PIC18LF46J13 utilizes Microchip's enhanced mid-range core architecture with hardware multiply and a 16-bit instruction word. Its 48MHz internal oscillator (using a 4x PLL from the 12MHz primary oscillator) provides 12 MIPS throughput, while the on-chip 31kHz low-power oscillator enables sleep-mode operation with minimal current draw. Peripheral pin select (PPS) allows flexible function remapping on selected pins, simplifying PCB layout. Typical applications include low-power wireless sensor nodes, battery-powered IoT devices, portable medical instruments, remote controls, and consumer electronics with USB connectivity. The wide range of peripherals (ADC, PWM, RTCC, communication interfaces) also makes it suitable for industrial control, smart meters, and home automation where long battery life is critical. When designing with this part, ensure decoupling capacitors (100nF plus 1-10µF bulk) are placed within 5mm of the VDD pins, and route the analog supply (AVDD/AVSS) separately from digital supply if the ADC is used. The ICSP programming pins (PGD/PGC) must be accessible for in-circuit programming and debugging. This page synthesizes distributor pricing, drop-in replacement alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC18LF46J13T-I/ML - 64KB Flash 8-bit MCU, 44-QFN | Microchip
PIC18LF46J13T-I/ML

PIC18LF46J13T-I/ML - 64KB Flash 8-bit MCU, 44-QFN | Microchip

The Microchip Technology PIC18LF46J13T-I/ML is a low-power 8-bit PIC microcontroller with 64KB Flash program memory, 3.8KB RAM, and a 12-bit ADC, housed in a 44-pin QFN package with exposed thermal pad. It operates from 2.0V to 3.6V, runs the CPU up to 48 MHz (12 MIPS), and is optimized for low-voltage 2.5V/3.3V designs that need rich connectivity and analog integration. What is an 8-bit microcontroller? An MCU (microcontroller unit) is a single-chip computer integrating a CPU core, program memory (Flash), data memory (RAM), non-volatile EEPROM, and a set of peripherals (ADC, timers, communication ports). 8-bit MCUs like the PIC18 family use an 8-bit data path optimized for low power, deterministic interrupt response, and ease of use, sitting under the broader category of embedded computing devices alongside 16-bit and 32-bit MCUs. Key features include 34 digital I/O pins, an internal oscillator, two USART, two SPI, two I2C, USB 2.0 full-speed transceiver (device/host/OTG), a 12-channel 12-bit ADC, two analog comparators, and CTMU charge-time measurement hardware. The nanoWatt XLP (eXtreme Low Power) technology delivers sleep currents in the nanoampere range, enabling multi-year battery life on coin cells. The device uses a Harvard-architecture PIC core with hardware multiplier, providing deterministic 12 MIPS throughput and a 16-bit instruction set. The integrated USB 2.0 transceiver with on-chip PHY eliminates external USB chips, while the 12-bit ADC with auto-scan supports sensor arrays directly. Internal voltage reference and temperature indicator reduce external components. Typical applications include USB peripherals, low-power wireless sensor nodes, medical handheld instruments, consumer electronics with USB charging/communication, and industrial HMI panels. The combination of on-chip USB, ADC, and nanoWatt XLP suits mains-powered or battery-powered mixed-signal designs. When designing with this part, place a 100 nF decoupling capacitor on each VDD/VSS pair and route the exposed thermal pad to a continuous ground pour for best thermal and EMI performance. The 44-pin QFN requires PCB design with microvia or filled via array under the EP to meet solder-joint reliability targets. This page synthesizes distributor pricing, verified drop-in alternatives from the same QFN-44 footprint, and practical low-power design notes not consolidated in the manufacturer datasheet.

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PIC18LF46J13T-I/PT - 64KB Flash 8-bit XLP MCU | Microchip 44-TQFP
PIC18LF46J13T-I/PT

PIC18LF46J13T-I/PT - 64KB Flash 8-bit XLP MCU | Microchip 44-TQFP

The Microchip Technology PIC18LF46J13T-I/PT is an 8-bit PIC® XLP™ microcontroller from the PIC18J family, featuring 64KB (32K × 16) of Flash program memory, 4KB of RAM, and a 48 MHz internal oscillator speed, housed in a 44-pin TQFP (10 × 10 mm) package. As a low-power (LF) variant, it operates from a 2.0V to 3.6V supply, suiting battery-powered designs, while delivering up to 12 MIPS instruction throughput. The integrated 12-bit ADC (with up to 13 channels), on-chip voltage reference, and nanoWatt XLP sleep modes make it well suited for low-duty-cycle measurement systems. An 8-bit microcontroller (MCU) is a small computing system on a single integrated circuit that integrates a CPU, RAM, Flash/ROM program memory, peripherals, and I/O. Within the broader MCU taxonomy, the PIC18 architecture sits between baseline PIC10/12/16 parts and the more advanced PIC24/dsPIC line, combining C-friendly Harvard architecture, RISC-like instruction set, and ample peripherals. The PIC18LF46J13T-I/PT targets general-purpose (GP) embedded control where low power, ample code space, and integrated analog are required. Key features include 64KB Flash with self-programming capability, 4KB RAM, 10-bit/12-bit ADC with 13 input channels, multiple timers (8-bit and 16-bit), two comparators, Capture/Compare/PWM (ECCP) modules, I²C, SPI, and enhanced USART. The nanoWatt XLP technology delivers sub-µA sleep currents suitable for energy harvesting and remote-sensor nodes. Memory endurance is rated at 100K erase/write cycles minimum, and Flash retention is specified at 20 years typical. Technically, the device uses a 16-bit instruction word with a 2-stage pipeline, executes most instructions in one cycle, and supports hardware multipliers for 8 × 8 single-cycle unsigned math. Three hardware interrupt sources and 256-byte data EEPROM round out the embedded feature set. The 44-pin TQFP exposes 34 digital I/O pins plus dedicated analog and oscillator functions. Typical applications include portable medical devices, environmental sensor hubs, smart thermostats, USB-key peripherals, and industrial HMI panels. The wide operating temperature range (-40 °C to +85 °C industrial) covers outdoor and factory-floor deployments. A key design consideration: although this is the LF (low-voltage) variant, the F variant (PIC18F46J13T-I/PT) covers the 2.15V–3.6V range with slightly different electrical characteristics — verify Vdd margin against worst-case ADC reference noise before board bring-up. This page synthesizes drop-in alternatives, comparison data, and practical design notes not found on standard distributor listings.

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PIC18LF46J50-I/ML - 8-bit 48MHz USB MCU 64KB Flash | Microchip
PIC18LF46J50-I/ML

PIC18LF46J50-I/ML - 8-bit 48MHz USB MCU 64KB Flash | Microchip

The Microchip Technology PIC18LF46J50-I/ML is an 8-bit PIC18 microcontroller running at 48 MHz with 64 KB of Flash program memory and integrated full-speed USB 2.0, housed in a 44-pin QFN (8x8 mm) package. It targets low-power, USB-connected embedded designs and belongs to the PIC18 J-series family with nanoWatt XLP power-saving features. Core specifications include 48 MHz CPU speed, 64 KB (32K x 16) Flash, 4 KB RAM, and 2.5V/3.3V dual-voltage operation from the LF process variant. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (RAM), and peripherals such as timers, communication interfaces, and analog modules. 8-bit MCUs are widely used in cost-sensitive, deterministic embedded applications because of their simple instruction set, predictable interrupt latency, and low power consumption. The PIC18 architecture is an enhanced 8-bit core with a 16-bit instruction word, hardware multiplier, and linear addressing, sitting between traditional 8-bit controllers and more complex 16/32-bit devices. Within Microchip's portfolio, the PIC18LF46J50 belongs to the J-series, which adds full-speed USB, deep-sleep modes, and a wider voltage range. Key features include on-chip full-speed USB 2.0 device/host/OTG, 36 digital I/O pins, multiple serial interfaces (UART, SPI, I2C), a 10-bit ADC with up to 13 channels, and nanoWatt XLP deep-sleep current in the nanoamp range. The 44-QFN package provides a small 8x8 mm footprint with an exposed thermal pad for improved heat dissipation, making it well-suited for space-constrained USB dongles, sensor hubs, and consumer peripherals. Typical applications include USB HID peripherals such as keyboards, mice, and game controllers, USB-to-UART bridges, low-power sensor data loggers, and battery-powered IoT edge nodes. The wide 2.0-3.6V operating range and deep-sleep modes allow direct Li-ion or 2xAA battery operation while still supporting USB when plugged in. When designing with this part, place the 44-QFN exposed pad over a continuous ground plane with multiple thermal vias to meet the package's thermal and electrical requirements. Decoupling capacitors must be placed as close as possible to the VDD/VSS pins and the VUSB pin, following the USB transceiver layout guidelines in the datasheet.

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PIC18LF46J50T-I/ML - 8-bit 48MHz USB MCU 64KB Flash | Microchip
PIC18LF46J50T-I/ML

PIC18LF46J50T-I/ML - 8-bit 48MHz USB MCU 64KB Flash | Microchip

The Microchip Technology PIC18LF46J50T-I/ML is an 8-bit PIC RISC microcontroller with integrated full-speed USB 2.0, delivering 48 MHz CPU performance, 64 KB Flash program memory, and 4 KB RAM in a 44-pin QFN (8x8) package with exposed pad. It operates from a 2.0V to 3.6V supply range and belongs to the nanoWatt XLP power-managed family. Tape & Reel (T/R) packaging supports high-volume assembly. A microcontroller (MCU) is a single-chip computer containing a CPU core, program and data memory, peripherals, and I/O. The PIC18 family from Microchip uses a modified Harvard RISC architecture with 16-bit opcodes and 8-bit data, optimized for deterministic interrupt response and low power. The J-series sub-family adds nanoWatt XLP technology for deep sleep currents in the nanoamp range, ideal for battery-powered and energy-harvesting designs. Key features include a full-speed USB 2.0 device/host/OTG transceiver, 64 KB self-programmable Flash with 4 KB RAM, 13 ADC channels with 10-bit resolution, multiple PWM/Capture/Compare modules, and 36 digital I/O pins. The device includes a real-time clock calendar, two analog comparators, and a charge time measurement unit (CTMU) for capacitive touch sensing. The 8-bit modified Harvard RISC core executes most instructions in one cycle, achieving up to 16 MIPS throughput at 48 MHz. Typical applications include USB peripherals, touch-sensitive user interfaces, low-power wireless sensor nodes, industrial control interfaces, and portable medical devices. USB connectivity eliminates external transceivers in HID-class designs such as mice, keyboards, and data loggers. Design considerations: the exposed thermal pad on the QFN package must be soldered to a ground plane for electrical and thermal performance. Use Microchip's MPLAB X IDE with the XC8 compiler for firmware development. This page consolidates distributor pricing, drop-in alternatives, and applied design guidance that goes beyond what the manufacturer datasheet alone provides.

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PIC18LF46J53-I/ML - 64KB Flash USB MCU 8-Bit 48MHz | Microchip
PIC18LF46J53-I/ML

PIC18LF46J53-I/ML - 64KB Flash USB MCU 8-Bit 48MHz | Microchip

The Microchip Technology PIC18LF46J53-I/ML is an 8-bit PIC18 microcontroller from the PIC18 XLP 18J family with integrated full-speed USB 2.0, 64KB of Flash program memory and 4KB of RAM, operating up to 48 MHz (12 MIPS) in a 44-pin QFN (8x8) exposed-pad package. The LF variant supports a wide 2.0V to 3.6V core supply for low-power designs, while the 64-pin QFN variant (I/PT) shares the same die for layout flexibility. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory (Flash), volatile working memory (RAM), and a rich set of peripherals (ADC, timers, communication ports, USB). The PIC18 family uses Microchip's enhanced Harvard RISC architecture, where separate program and data buses let the CPU fetch an instruction and access data in the same clock cycle. The LF 'J' series is built on a deep-submicron process that enables nanoWatt XLP sleep currents measured in nanoamps, making the device suitable for battery-powered and energy-harvesting designs. Key features of this part include: 12-bit A/D converter with up to 13 channels, two analog comparators, a 5-bit DAC, multiple Enhanced USART, SPI, and I2C peripherals, two capture/compare/PWM modules, and a full-speed USB 2.0 device/host/OTG controller with an internal 3.3V regulator. The 48 MHz internal oscillator and 31 kHz low-power secondary oscillator provide flexible clocking, while the nanoWatt XLP technology delivers sleep currents below 100 nA typical. Architecturally, the device uses a modified Harvard core with a hardware multiply, 16-bit instruction width, and a 32-level hardware stack. The internal 3.3V LDO allows direct connection to a single-cell Li-Ion or 5V USB bus, while the integrated USB transceiver and on-chip pull-up resistors simplify USB-device designs by removing external components. Typical applications include USB HID peripherals such as mice, keyboards, and game controllers, USB-to-UART bridges, USB data loggers, medical USB sensors, low-power wireless sensor nodes, and consumer electronics that require a 12-bit ADC. Its combination of low power, integrated USB, and 44-pin QFN makes it well suited for space-constrained handheld designs. When designing with this part, use the exposed pad as the primary thermal and electrical ground path, and pair the device with MPLAB X IDE and one of Microchip's programmer/debuggers such as PICkit 5, ICD 4, or MPLAB Snap for development. Ensure the 3.3V LDO bulk capacitor meets the datasheet's ESR requirement, and configure the VUSB3V3 pin to source or sink mode per your bus-power architecture. This page combines distributor pricing, verified drop-in alternatives, and practical design notes that the bare datasheet does not offer.

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PIC18LF46J53T-I/ML - 8-bit USB MCU 64KB Flash 48MHz | Microchip
PIC18LF46J53T-I/ML

PIC18LF46J53T-I/ML - 8-bit USB MCU 64KB Flash 48MHz | Microchip

The Microchip Technology PIC18LF46J53T-I/ML is an 8-bit PIC18 nanoWatt XLP microcontroller featuring 64KB Flash program memory, 3.8KB RAM, an integrated USB 2.0 full-speed transceiver, and a 12-bit ADC, housed in a 44-pin VQFN (ML) 8x8mm exposed-pad package. It operates up to 48 MHz delivering 12 MIPS, with a wide 2.0 V to 3.6 V supply range (the "LF" family marker). The "T" suffix indicates Tape & Reel packaging and the "I" industrial temperature grade of -40C to +85C. A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory (Flash), data memory (RAM), and a rich set of peripherals such as timers, communication interfaces, and analog converters. PIC18LF46J53 belongs to the PIC18 8-bit RISC family, the low-power (LF) variant of the J-series, and within the power management hierarchy it sits at the embedded control IC level, sitting above simple logic ICs and below MPU-class devices. This places the part in the broader semiconductor hypernym chain: MCU -> 8-bit MCU -> PIC18 -> PIC18F/LF J-series -> PIC18LF46J53. Key differentiating features include 34 programmable I/O pins, a 12-bit A/D converter with up to 13 input channels, two analog comparators, two UART/USART, SPI and I2C (MSSP) peripherals, a full-speed USB 2.0 device/host/OTG transceiver, two 8-bit and three 16-bit timers, and nanoWatt XLP technology for sub-microamp sleep currents. The internal 31 kHz and 8 MHz oscillators with PLL flexibility reduce external component count. The "J" series core runs from 2.0 V to 3.6 V versus the 2.0 V to 5.5 V of classic PIC18F, making it suited to low-voltage USB and battery designs. The architecture uses a modified Harvard RISC core with 16-bit opcodes and a 16-bit data path, enabling single-cycle 16-bit fetches. With hardware multiplier, deterministic interrupt latency, and instruction pre-fetch, the device achieves 12 MIPS at 48 MHz while still supporting nanoWatt sleep modes useful for battery-powered peripherals. The integrated USB SIE eliminates the external PHY requirement for low-speed and full-speed USB. Typical applications include USB Human Interface Devices (HID), CDC serial bridges, USB audio peripherals, low-power sensor nodes, and consumer electronics with USB charging/data ports. The exposed pad (EP) on the VQFN provides a low-thermal-resistance path (~28 C/W) for higher-power USB-host applications. When designing with this MCU, place the decoupling capacitors as close as possible to VDD/VSS pairs and connect the exposed pad to a contiguous ground plane for thermal dissipation. For USB applications, the D+/D- traces must be 45-ohm impedance-controlled and length-matched within 150 mil. This page synthesizes distributor pricing, drop-in alternatives from the PIC18 J-series family, and practical design notes not found in the bare manufacturer datasheet.

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PIC18LF46K22-E/MV - 64KB Flash 8-bit MCU | Microchip
PIC18LF46K22-E/MV

PIC18LF46K22-E/MV - 64KB Flash 8-bit MCU | Microchip

The Microchip Technology PIC18LF46K22-E/MV is a low-power, high-performance 8-bit microcontroller from the PIC18F/LF K22 family, delivering 48 MIPS of CPU throughput at 48 MHz from an internal oscillator while consuming nanoWatt XLP-class quiescent current. It integrates 64 KB of Flash program memory (32K × 16), 3.8 KB of RAM, 1 KB of EEPROM, and 35 digital I/O pins in a 40-pin UQFN (5 × 5 mm) exposed-pad package. What is an 8-bit microcontroller? An 8-bit microcontroller (MCU) is a single-chip computer that processes data 8 bits at a time and integrates a CPU core, program memory (Flash/ROM), data memory (RAM), non-volatile storage (EEPROM), peripherals (ADC, timers, communication interfaces), and I/O into one package. PIC18F-family MCUs sit in the middle of Microchip's 8-bit portfolio, above baseline PIC16 and below 16-bit dsPIC33 devices, and are commonly used as power-conscious controllers in industrial, automotive, white-goods, and consumer applications where deterministic behaviour and low standby current matter more than raw MHz throughput. The LF (low-voltage / low-power) variant supports operation down to 1.8 V, making it suitable for battery-powered and energy-harvesting designs. Key peripherals include a 10-bit ADC with up to 28 input channels, two comparators, two SPI/I²C, one EUSART, three 8-bit and four 16-bit timers, and a charge-time measurement unit (CTMU) for capacitive touch. The nanoWatt XLP technology provides multiple low-power sleep modes (idle, sleep, deep sleep, ultra-low-power wake) with currents in the nA range, allowing years of operation from a single coin cell. The "/MV" suffix indicates the 40-pin UQFN 5 × 5 mm exposed-pad package, the smallest footprint in the K22 family and ideal for space-constrained PCB designs. Typical applications include handheld instruments, IoT sensor nodes, automotive body controllers, USB/HID peripherals, capacitive-touch user interfaces, and low-power wireless sensor platforms where the part's 48 MHz core handles protocol stacks while its nanoWatt sleep modes preserve battery life. When designing with this part, pay attention to the decoupling network, the exposed-pad PCB landing, and the in-circuit serial programming (ICSP) pins. For new designs, the K42 family is generally recommended unless the K22's specific peripheral mix is required.

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PIC18LF46K22-E/P - 64KB Flash 8-bit XLP MCU | Microchip
PIC18LF46K22-E/P

PIC18LF46K22-E/P - 64KB Flash 8-bit XLP MCU | Microchip

The Microchip Technology PIC18LF46K22-E/P is an 8-bit RISC microcontroller in the PIC18 XLP family, featuring 64KB (32K x 16 words) of Flash program memory, 3,896 bytes of RAM, and 1,024 bytes of EEPROM, housed in a 40-pin PDIP through-hole package. It executes instructions at up to 48 MHz from an internal oscillator, while the device family supports operation up to 64 MHz, and operates from a wide 1.8V to 3.6V supply range suited to battery-powered designs. The 'LF' prefix designates the low-voltage variant of the K22 family with nanoWatt XLP extreme-low-power technology, while the 'E' suffix denotes the extended temperature grade of -40C to +125C. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, integrating a CPU, non-volatile program memory, volatile RAM, peripherals, and I/O on a single die. The PIC18 architecture is an enhanced 8-bit Harvard RISC core with a hardware multiplier, prioritized interrupts, and a 16-bit instruction word, sitting above the PIC16/PIC12 families in Microchip's 8-bit portfolio. Within the power-management hierarchy, the XLP nanoWatt technology places the PIC18LF46K22 in the ultra-low-power MCU tier, enabling sleep currents in the nanoamp range and active currents in the microamp range. Key differentiating features include 35 digital I/O pins, two Enhanced USART modules supporting LIN/IrDA, two MSSP (SPI/I2C) ports, a 12-channel 10-bit ADC with computation, five CCP/ECCP modules for PWM/motor control, and dual analog comparators. The device also provides a charge time measurement unit (CTMU) for capacitive touch and a 16-bit timer/counter set, making it well suited for mixed-signal embedded designs. Typical applications include low-power battery sensor nodes, capacitive touch user interfaces, motor control with ECCP PWM, industrial control panels, USB-less human-interface peripherals, and remote controls where the extended -40C to +125C range is needed. A common design tip is to leverage the multiple low-power modes (Sleep, Idle, Doze) and the RTCC with its dedicated 32 kHz domain to keep average consumption below 1 uA in duty-cycled designs. This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC18LF46K22-E/PT - 64KB Flash 8-bit MCU 48MHz | Microchip
PIC18LF46K22-E/PT

PIC18LF46K22-E/PT - 64KB Flash 8-bit MCU 48MHz | Microchip

The Microchip Technology PIC18LF46K22-E/PT is an 8-bit RISC microcontroller built on the PIC18 CPU core, featuring 64KB of Flash program memory (32K x 16 words), 3,896 bytes of SRAM, and 1KB of data EEPROM, operating at up to 48MHz. It is housed in a 44-pin TQFP (10x10 mm) package and runs from a 1.8V to 3.6V supply, making it part of Microchip's nanoWatt XLP extreme-low-power family for battery-friendly designs. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (Flash, SRAM, EEPROM), and peripherals (ADC, timers, communication interfaces) on one die. The PIC18LF46K22 belongs to the 8-bit PIC18 architecture hierarchy: PIC18 family -> 8-bit MCU -> microcontroller -> embedded processor -> semiconductor IC. Its nanoWatt XLP technology adds sleep currents in the nanoamp range, making it well suited for always-on, energy-harvesting, or battery-powered designs where quiescent draw dominates lifetime. Key features include two I2C, two SPI, two USART (including LIN-capable) interfaces, a 12-channel 10-bit ADC, multiple 8/16-bit timers with PWM, and a charge time measurement unit (CTMU) for capacitive touch. The 64KB Flash supports self-programmability under software control, enabling in-field firmware updates without an external programmer. The 44-pin TQFP footprint gives access to up to 36 I/O pins and supports JTAG/ICSP in-circuit debugging through dedicated pins. Typical applications include low-power sensor nodes, pulse oximeter front ends, portable medical instruments, industrial HMI panels, USB-to-UART bridges, and battery-backed IoT devices that demand long sleep intervals. The CTMU peripheral also enables capacitive touch keypads and slider interfaces without an external touch controller. When designing with this part, populate the VDD/VSS pins with 100 nF + 10 uF decoupling placed within a few millimeters of the package, and use the on-chip LDO (if enabled in configuration bits) for cleaner ADC measurements. For sleep-mode designs, verify the MCLR pull-up and WDT configuration to avoid unwanted resets and current draw. This page synthesizes distributor pricing, parametric proximity-ranked drop-in alternatives, and practical design notes beyond what the manufacturer datasheet provides, structured for fast lookup during component selection and PCB bring-up.

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PIC18LF46K22-I/ML - 8-bit XLP MCU 64KB Flash 44-QFN | Microchip
PIC18LF46K22-I/ML

PIC18LF46K22-I/ML - 8-bit XLP MCU 64KB Flash 44-QFN | Microchip

The Microchip Technology PIC18LF46K22-I/ML is an 8-bit PIC18F microcontroller in the nanoWatt XLP family, offering 64 KB of Flash program memory, 3,968 bytes of RAM, and 1 KB of EEPROM in a 44-pin QFN (8x8 mm) package. The device operates up to 64 MHz (16 MIPS instruction throughput) from a 1.8 V to 3.6 V supply, with the LF prefix denoting the low-voltage F-core variant for battery-friendly designs. The -I suffix denotes the industrial -40 C to +85 C operating range, and the /ML suffix marks the matte-tin 44-QFN (ML) package with exposed thermal pad. A microcontroller (MCU) is a single-chip computer integrating a CPU core, program memory (Flash/ROM), data memory (RAM), peripherals, and I/O. The PIC18 family is Microchip's 8-bit RISC architecture using a 16-bit instruction word and a hardware accumulator; the K22 sub-family adds the nanoWatt XLP (eXtra Low Power) energy-management features, deep-sleep modes drawing < 50 nA, and peripheral support for mTouch capacitive sensing, USB, and PWM-driven motor control. The PIC18LF46K22 sits in the PIC18 hierarchy: PIC18 -> 8-bit MCU -> nanoWatt XLP -> K22 series. Key features of this part include a 12-bit ADC with up to 28 channels, two analog comparators, four 8/16-bit timer/counters, two CCP and three ECCP PWM modules, two MSSP (SPI/I2C) and two EUSART (UART/LIN) ports, an mTouch capacitive-sensing peripheral, an on-chip 16 MHz internal oscillator, and CTMU charge-time measurement. The wide operating range of 1.8 V to 3.6 V allows direct Li-ion or 2x AA battery operation, while CTMU and RTCC support energy-aware applications. The 44-QFN (ML) package combines compact 8x8 mm board area with a thermal pad for higher-power dissipation. Typical applications include low-power sensor nodes, capacitive touch user interfaces, battery-powered medical and consumer products, USB/CDC human-interface devices, motor and lighting control via ECCP PWM, and industrial control front-ends. The deep-sleep modes with RTCC and WDT wake-up make it well-suited for energy-harvesting and remote-sensor designs. When designing with this MCU, allocate a solid GND copper pour under the exposed pad and stitch vias to the inner layer for thermal relief. Configure the configuration bits (CONFIG1H/2L/3H/4L) carefully to avoid an unintended oscillator source at first power-up; Microchip's MPLAB X IDE and XC8 compiler are the recommended tool chain for code development. This page synthesizes distributor pricing, same-package drop-in alternatives, and design notes that complement the manufacturer datasheet. Pricing data references XAIPART listings as of 2026-09-29 and may vary across authorized distributors.

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PIC18LF46K22-I/PT - 8-bit 64MHz XLP MCU 64KB Flash 44-TQFP | Microchip
PIC18LF46K22-I/PT

PIC18LF46K22-I/PT - 8-bit 64MHz XLP MCU 64KB Flash 44-TQFP | Microchip

The Microchip Technology PIC18LF46K22-I/PT is an 8-bit PIC microcontroller from the PIC18F/LF K22 family that combines high-performance compute with Microchip's nanoWatt XLP (eXtreme Low Power) technology. Built around an enhanced RISC architecture, it operates up to 64 MHz delivering up to 16 MIPS, integrates 64 KB of Flash program memory (32K x 16), 3,896 bytes of SRAM, and 1,024 bytes of EEPROM, and is housed in a 44-pin TQFP (10x10 mm) package. The 'LF' prefix denotes the wide-voltage F-variant core (1.8V-3.6V) optimized for battery-powered designs. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, combining a CPU, non-volatile program memory, RAM, peripherals, and interrupt logic in one package. The PIC18 family sits at the top of Microchip's 8-bit portfolio, sitting in the hierarchy: PIC18 -> 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. The LF sub-family adds XLP nanoWatt technology that targets sleep currents below 50 nA in deep sleep modes, allowing coin-cell or energy-harvested products to wake only when needed. Key specifications include 35 digital I/O pins, an internal oscillator up to 64 MHz, configurable peripherals such as multiple UART, SPI, I2C, 10/12-bit ADC, comparators, and PWMs with auto-shutdown. The on-chip 16 MIPS performance lets designers execute DSP-style signal conditioning without external accelerators. The device also integrates an RTCC, mTouch capacitive-touch hardware, and a charge time measurement unit (CTMU) for sensor interfaces. Typical applications include home automation nodes, handheld instruments, industrial sensor monitoring, low-power IoT edge devices, and consumer electronics that demand rich peripherals in a small 44-pin footprint. The XLP sleep currents and 1.8V minimum VDD make it ideal for battery or energy-harvested designs where quiescent current dominates lifetime. When designing, always respect the 3.6V absolute maximum VDD for the 'LF' variant and de-couple VDD/AVDD with 100 nF plus bulk capacitance. Use ICSP pins (PGC/PGD) with proper isolation resistors so programming headers do not load the application circuit during debug. This page consolidates distributor pricing, drop-in TQFP alternatives, and practical design notes to help procurement and embedded engineers evaluate this part for low-power 8-bit designs.

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