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PIC18LF2520T-I/SO - 8-bit 32KB MCU, 40MHz, 28-SOIC | Microchip
PIC18LF2520T-I/SO

PIC18LF2520T-I/SO - 8-bit 32KB MCU, 40MHz, 28-SOIC | Microchip

The Microchip PIC18LF2520T-I/SO is a low-power 8-bit PIC18F-family microcontroller delivering 10 MIPS performance at 40 MHz, packaged in a 28-pin SOIC (SO) wide-body IC package. It integrates 32 KB of Flash program memory, 1536 bytes of SRAM, and 256 bytes of EEPROM, with 25 digital I/O pins and a 10-bit ADC for mixed-signal embedded designs. Operating from 2.0 V to 5.5 V (LF variant), the part supports wide supply flexibility for battery-powered, industrial, and consumer applications. The 'T' suffix denotes Tape-and-Reel packaging while '-I' indicates the industrial temperature range of -40 °C to +85 °C, and 'SO' specifies the 28-lead Small Outline IC package. A PIC microcontroller is a Harvard-architecture RISC device that combines a CPU core, program memory, data memory, and a rich set of peripherals (timers, ADC, UART, SPI, I2C, PWM) on a single silicon die. PIC18 parts extend the baseline PIC16 architecture with 16-bit instructions, a wider data path, C-optimized instruction set, single-cycle hardware multiply, and enhanced peripherals such for motor control and USB. The PIC18LF2520 belongs to the enhanced Flash microcontroller family with 10-bit A/D and nanoWatt features, making it a workhorse for general-purpose embedded products. Key features include an 8x8 single-cycle hardware multiplier, internal oscillator support from 31 kHz to 8 MHz, a Fail-Safe Clock Monitor that allows safe shutdown if the clock fails, and a separate Watchdog Timer with its own RC oscillator for maximum reliability. The 10-bit ADC provides up to 10 channels, while the nanoWatt power-management modes reduce quiescent current to microampere levels for sleep-mode battery life. Enhanced peripherals include ECAN-ready I/O, PWM modules for motor and lighting control, and dual analog comparators. Architecture depth: the C-optimized RISC pipeline executes most instructions in one cycle, and the 32 KB linear Flash with self-programmability supports in-application firmware updates via the bootloader or runtime routines. The 1536-byte SRAM is shared with the hardware stack and general-purpose variables, while the 256-byte EEPROM offers non-volatile user data storage rated for 100 k erase/write cycles typical. The peripheral pin-select (PPS) and remappable I/O extend design flexibility across the 28-pin package. Typical applications include industrial control (sensor interfacing, motor drives), low-power consumer devices (battery chargers, remote controls, HVAC thermostats), automotive body and aftermarket electronics, USB-to-UART bridges, and small appliances with user interface displays. The wide voltage range and nanoWatt modes make it a frequent choice for solar-powered, energy-harvesting, and remote IoT nodes where standby current is critical. The 28-SOIC footprint also simplifies hand-prototyping and wave-soldered production assemblies. When designing with the PIC18LF2520T-I/SO, reserve the MCLR pin with its proper pull-up, use decoupling capacitors (100 nF plus 10 µF bulk) within a few millimetres of VDD/VSS pairs, and route the quartz crystal traces symmetrically with a guard ground to minimise EMI. Verify ADC accuracy by adding anti-alias filters on analog inputs and by keeping digital signals away from analog traces. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, enabling rapid part selection and sourcing for engineers evaluating 8-bit PIC18 alternatives.

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PIC18LF2523-I/ML - 8-bit 40MHz 32KB Flash MCU | Microchip
PIC18LF2523-I/ML

PIC18LF2523-I/ML - 8-bit 40MHz 32KB Flash MCU | Microchip

The Microchip Technology PIC18LF2523-I/ML is an 8-bit RISC PIC18 microcontroller running at up to 40 MHz (10 MIPS), with 32 KB of Flash program memory and 1536 bytes of SRAM, housed in a 28-pin QFN (6x6 mm) package with exposed thermal pad. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path. It integrates a CPU core, program memory, working RAM, and peripherals such as timers, ADC, UART, and I/O ports into one package. The PIC18 family belongs to Microchip's enhanced mid-range line, sitting above baseline PIC16 parts and below 16-bit dsPIC/PIC24 controllers in the Microchip 8/16-bit MCU taxonomy. Within that hierarchy, the PIC18F2523 is one of three PIC18 sub-families (F-series) that share a common peripheral library and instruction set, enabling code migration across the entire PIC18 range. Key features of the PIC18LF2523-I/ML include a wide 2.0 V to 5.5 V supply range (suitable for battery and 5V regulated systems), 25 digital I/O pins, a 10-bit A/D converter with up to 12 channels, two analog comparators, hardware 8x8 single-cycle multiplier, internal oscillator from 31 kHz to 8 MHz (up to 32 MHz with 4x PLL), and a Fail-Safe Clock Monitor. The QFN-28 (6x6 mm) package exposes a thermal pad to keep junction temperature low at higher MIPS loads and enables compact PCB layouts. The architecture pairs an enhanced Harvard RISC CPU with a C-compiler-optimized instruction set, supporting both assembly and ANSI C development under MPLAB X IDE. The peripheral set is identical across the PIC18F2423/2523/4423/4523 family, so users can scale code from 28-pin to 40/44-pin members without rewriting drivers. The result is a flexible general-purpose MCU well-suited to consumer, industrial, and automotive-body applications. Typical applications include sensor signal conditioning, low-cost motor drives (small DC/BLDC commutation), USB/HID bridges (via software bit-bang), industrial control panels, white goods user interfaces, and battery-powered data loggers. The wide operating voltage makes it appropriate for both 3.3 V and 5 V designs. When designing with the PIC18LF2523-I/ML, allocate adequate ground vias under the exposed thermal pad of the QFN package for thermal and electrical performance. Place the decoupling capacitor as close as possible to VDD, and follow Microchip's recommended in-circuit serial programming (ICSP) layout for production programming and field updates. This page synthesizes current distributor pricing, verified drop-in PIC18 family alternatives, and practical design notes not duplicated from the manufacturer datasheet, giving engineers and buyers a single-source decision aid.

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PIC18LF2523-I/SO - 8-bit PIC MCU, 32KB Flash, 28-SOIC | Microchip
PIC18LF2523-I/SO

PIC18LF2523-I/SO - 8-bit PIC MCU, 32KB Flash, 28-SOIC | Microchip

The Microchip Technology PIC18LF2523-I/SO is an 8-bit PIC18F-family RISC microcontroller with 32KB Flash, 1536 bytes of SRAM, and 256 bytes of EEPROM, operating at up to 40 MHz (10 MIPS) in a 28-pin SOIC package. It is part of the LF variant optimized for low-voltage operation across 2.0V–5.5V. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, RAM, peripherals, and I/O. The PIC18F family is Microchip's enhanced mid-range 8-bit architecture, positioned between the baseline PIC10/12/16 families and the 16-bit dsPIC/PIC24 families in the company's silicon portfolio. Compared to baseline PIC MCUs, PIC18 devices add 16-bit instructions, hardware multiply, C-compiler-optimized RISC architecture, and extended peripherals. Key features of the PIC18LF2523-I/SO include 32KB self-programmable Flash program memory, 1536 bytes of SRAM, 256 bytes of data EEPROM, a 10-bit ADC with up to 12 channels, two analog comparators, two CCP modules, an Enhanced USART, MSSP (SPI/I2C) and a 25-I/O maximum count. Internal oscillator support spans 31 kHz to 8 MHz and up to 32 MHz with 4X PLL, removing the need for external crystals in cost-sensitive designs. The LF suffix indicates a wide VDD range of 2.0V–5.5V. The PIC18LF2523-I/SO's technical depth comes from its RISC instruction set, hardware multiply, and Fail-Safe Clock Monitor that shuts down the controller safely if the primary clock stops. It is widely deployed in motor control, motor instrumentation, motor sensor interfacing, motor communication, and motor display driving applications. The 'LF' and 'F' variants differ only in voltage range; pinout and peripheral maps are identical, enabling firmware portability across the family. Typical applications include industrial control nodes, sensor signal conditioning, low-power sensor hubs, USB-to-UART bridge MCUs, 3-phase motor control, and battery-powered measurement instruments. The internal oscillator and on-board EEPROM enable compact BOMs for these applications. When designing with the PIC18LF2523-I/SO, ensure VDD decoupling with 100 nF ceramic capacitors placed within 5 mm of each supply pin. The ICSP pins (RB6/RB7) must be accessible for production programming and in-circuit debugging with tools such as MPLAB PICkit 5. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that are not found in the manufacturer datasheet alone.

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PIC18LF2523-I/SP - 32KB Flash 8-bit MCU, 28-SPDIP | Microchip
PIC18LF2523-I/SP

PIC18LF2523-I/SP - 32KB Flash 8-bit MCU, 28-SPDIP | Microchip

The Microchip Technology PIC18LF2523-I/SP is a low-voltage 8-bit PIC18 microcontroller built on a RISC architecture and packaged in a 28-pin SPDIP (Skinny Plastic DIP) through-hole package. It integrates 32 KB of Flash program memory (16K x 16), 1536 bytes of SRAM, and runs at up to 40 MHz / 10 MIPS from a 2.0 V to 5.5 V supply, while the -LF variant is characterized for the 4.2 V to 5.5 V industrial operating range with full 40 MHz performance. The -I suffix denotes the industrial temperature grade of -40 °C to +85 °C. A PIC18F-series 8-bit RISC microcontroller is a Harvard-architecture MCU featuring a single 8-bit data path with a separate program memory bus, executing one instruction per clock cycle (except branches). The PIC18 family is the high-performance tier of Microchip's 8-bit lineup, with a C-compiler-optimized instruction set, hardware 8x8 multiply, and an internal oscillator block; the part typically serves as the central controller in cost-sensitive embedded designs that need deterministic behavior, low power, and rich peripheral integration. Key features of the PIC18LF2523 include a 10-bit ADC with up to 12 channels, one 8-bit and three 16-bit timers, two capture/compare/PWM modules, two USART modules, an SPI and an I²C (MSSP) peripheral, 25 digital I/O pins, a 31 kHz to 8 MHz internal oscillator (with up to 32 MHz via 4X PLL), an enhanced flash memory rated for >100 k erase/write cycles, a fail-safe clock monitor, and a watchdog timer with its own on-chip RC oscillator. The device supports ICD (in-circuit debugger) interfaces and is supported by Microchip's MPLAB X IDE and XC8 toolchain. The architecture uses a 16-bit instruction word with an 8-bit data path, single-cycle hardware multiply, a vectored interrupt controller with two priority levels, and nanoWatt power management including idle, sleep, and run-time clock switching. A peripheral-rich design reduces external component count, while the 28-pin SPDIP footprint simplifies breadboarding and through-hole prototyping in low-volume or hobby designs. Typical applications include industrial control and sensor conditioning, automotive body and interior subsystems (non-safety), consumer appliances, low-cost USB/HID bridges, hobbyist and educational development boards, and embedded data acquisition front-ends requiring a 10-bit ADC. The wide 4.2-5.5 V supply range also makes it suitable for 5 V-rail designs. When designing with this part, note that the -LF variant is specified for 4.2-5.5 V; designs needing 2.0-3.6 V operation should consider the PIC18F2523 (standard 'F') variant. Ensure decoupling capacitors are placed within 5 mm of the VDD/VSS pairs, and that MCLR is properly tied through a 10 kΩ resistor for reliable reset behavior in electrically harsh environments. This page synthesizes distributor pricing, drop-in SPDIP-28 alternatives from Microchip's PIC18 family, and practical design notes not found in the manufacturer datasheet alone.

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PIC18LF2523T-I/ML - 8-bit 32KB Flash MCU, 40MHz, QFN-28 | Microchip
PIC18LF2523T-I/ML

PIC18LF2523T-I/ML - 8-bit 32KB Flash MCU, 40MHz, QFN-28 | Microchip

The Microchip Technology PIC18LF2523T-I/ML is an 8-bit RISC microcontroller from the PIC18F family, integrating 32KB of Flash program memory and 1.5KB of RAM in a 28-pin QFN (6x6 mm) package with exposed thermal pad. It operates across a wide 2.0V to 5.5V supply range and supports clock speeds up to 40 MHz, making it suitable for low-power and battery-driven embedded applications. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, plus peripherals such as ADCs, timers, communication interfaces, and I/O ports into one package. Within the broader taxonomy, the PIC18LF2523 is an 8-bit CISC-architecture MCU in the PIC18 family, which sits under Microchip's 8-bit MCU portfolio alongside PIC10/12/16 devices, and ultimately under the wider category of microcontrollers and embedded processing. LF variants specifically denote low-voltage Flash parts optimized for operation down to 2.0V, where F parts run from 4.2V to 5.5V. Key features include a 10-bit ADC with up to 12 channels, multiple communication peripherals (UART, SPI, I2C), enhanced Capture/Compare/PWM (ECCP) modules, and nanoWatt Technology for low-power sleep modes consuming under 100 nA typical. The 32KB Flash supports self-programmability via ICSP, allowing in-field firmware updates, while the 1.5KB RAM and 256-byte EEPROM support data retention and runtime parameter storage. Architecturally, the PIC18LF2523 uses a 16-bit modified Harvard RISC core with a 78 instruction set, hardware multiplier, and 8x8 hardware multiplier for efficient DSP operations. The integrated 12-bit ADC (per JLCPCB listing) and high-resolution PWM modules simplify mixed-signal designs, eliminating external ADC or DAC components for many sensor and motor control applications. Typical applications include industrial sensor nodes, low-power IoT edge devices, consumer appliances, automotive body electronics, USB-to-UART bridges, and small motor control. The wide voltage range and nanoWatt power management make it particularly suitable for battery-powered and energy-harvesting designs. When designing with this part, ensure adequate decoupling on VDD/AVDD (0.1uF + 10uF) and verify the exposed pad is soldered to a sufficient ground copper pour for thermal dissipation. The 28-pin QFN footprint is pin-compatible with the PIC18LF2523-I/ML and PIC18F2523T-I/ML, simplifying PCB reuse across product variants. This page synthesizes distributor pricing, verified drop-in alternatives, and practical design notes not found on a single distributor listing, supporting engineers and procurement teams in rapid BOM evaluation.

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PIC18LF2525-I/SO - 8-bit 40MHz 48KB Flash MCU | Microchip
PIC18LF2525-I/SO

PIC18LF2525-I/SO - 8-bit 40MHz 48KB Flash MCU | Microchip

The Microchip Technology PIC18LF2525-I/SO is an 8-bit PIC18 family RISC microcontroller running at up to 40MHz with 48KB of Flash program memory (24K x 16 words) and 3968 bytes of RAM, packaged in a 28-pin SOIC (SO) wide-body 300-mil form factor. The 'LF' prefix designates the low-voltage variant with an extended operating voltage range of 2.0V to 5.5V, making it suited for both 3.3V and 5V designs without changing the firmware baseline. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (typically Flash), working RAM, peripherals (timers, ADC, communication interfaces), and I/O pins in one package. PIC18 microcontrollers use a Harvard-architecture RISC core with 16-bit-wide instructions and an 8-bit data path, balancing code density with deterministic interrupt latency. The 'LF' family sits within the broader 8-bit PIC taxonomy alongside 'F' (5V), 'LC' (low-power CMOS), and 'J' (3.3V with nanoWatt) variants. Key features include 25 digital I/O pins, a 10-bit multi-channel analog-to-digital converter (ADC), enhanced USART, MSSP (SPI/I2C), two analog comparators, and Microchip's nanoWatt power-management technology with multiple idle/sleep modes. The 28-pin SOIC package supports industrial-grade -40C to +85C operation. The PIC18LF2525 architecture uses a 16-bit instruction word with 8-bit data path, allowing single-cycle execution of most instructions at 40MHz (10 MIPS) with deterministic interrupt response - a hallmark of PIC microcontrollers in real-time control applications. Typical applications include industrial control panels, sensor interfaces, low-power remote sensor nodes, USB-to-UART bridges when paired with an external USB transceiver, and consumer appliances where deterministic real-time response is required. The wide 2.0V-5.5V range simplifies battery-powered designs. When designing with this MCU, note that the 'I' suffix indicates the industrial -40C to +85C temperature grade. For extended -40C to +125C operation, the 'E' grade must be selected. Brown-out detect and low-voltage programming configuration bits must be set appropriately for reliable Flash endurance. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found on a single manufacturer or distributor product page.

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PIC18LF2525T-I/SO - 8-bit MCU, 48KB Flash, 40MHz, 28-SOIC | Microchip
PIC18LF2525T-I/SO

PIC18LF2525T-I/SO - 8-bit MCU, 48KB Flash, 40MHz, 28-SOIC | Microchip

The Microchip Technology PIC18LF2525T-I/SO is an 8-bit PIC18 microcontroller featuring 48KB of Flash program memory (24K x 16 words), 3968 bytes of RAM, and 1024 bytes of data EEPROM, all integrated in a 28-pin SOIC package. It is part of the enhanced flash PIC18 family and operates from a wide 2.0V to 5.5V supply with a maximum clock speed of 40MHz, making it suitable for both 3.3V and 5V applications. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (typically Flash), volatile data memory (RAM), EEPROM, and configurable peripheral peripherals (UART, ADC, timers, PWM, I/O ports). The "PIC18" name denotes Microchip's high-performance 8-bit RISC architecture, part of the broader MCU -> microcontroller -> embedded controller -> semiconductor taxonomy. Enhanced Flash variants like the 'LF2525 add self-programmability in-field, supporting bootloader designs and field firmware updates over UART, I2C, or CAN. Key features include 25 I/O pins, hardware USART with LIN support, MSSP (SPI/I2C), 10-bit ADC with up to 11 channels, two analog comparators, three timers, and a Capture/Compare/PWM module. The LF prefix indicates a low-voltage F-prefix variant designed for extended operating range down to 2.0V. The device carries full industrial-grade -40C to +85C operation and is RoHS compliant. Technically, the PIC18LF2525T-I/SO uses a 16-bit instruction word with an 8-bit data path, executes most instructions in a single cycle (4 clocks) for a theoretical 10 MIPS throughput at 40MHz, and supports hardware multiply. The T suffix indicates tape-and-reel packaging, while the SO suffix designates the 28-pin SOIC package (300-mil body). The '2525 differs from '2520 by offering larger Flash (48KB vs 32KB) at the same pinout. Typical applications include industrial control systems, automotive body and chassis subsystems, sensor signal conditioning, low-power sensor nodes with UART/CAN connectivity, appliance control boards, and USB-to-UART bridges using the MSSP peripheral. With 25 digital I/O and 10-bit ADC channels, it scales from simple keypad/HMI controllers to multi-sensor data acquisition platforms. Design consideration: plan code size against the 48KB Flash limit, leaving room for a bootloader if field updates are needed. Use decoupling capacitors within 5 mm of each VDD/VSS pair, and never leave unused I/O pins floating - configure them as outputs or tie them through a resistor to avoid spurious interrupts. This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found in the standalone manufacturer datasheet.

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PIC18LF252T-I/SOG - 32KB Flash 8-bit MCU 28-SOIC | Microchip
PIC18LF252T-I/SOG

PIC18LF252T-I/SOG - 32KB Flash 8-bit MCU 28-SOIC | Microchip

The Microchip Technology PIC18LF252T-I/SOG is an 8-bit PIC18F-family flash microcontroller (MCU) with a 40 MHz maximum operating frequency, 32 KB of program Flash memory (organized as 16K x 16), and 1.5 KB of RAM, housed in a 28-pin SOIC package. The 'LF' suffix indicates a low-voltage variant supporting operation down to 2.0 V, while the 'T' suffix denotes tape-and-reel packaging. An 8-bit microcontroller is a single-chip computer built around a processor with an 8-bit data path, integrated program memory (Flash/ROM), working memory (RAM), and peripherals such as timers, ADC, USART, I/O ports, and interrupt controllers. PIC18F-family MCUs from Microchip use a RISC Harvard architecture and provide up to 10 MIPS at 40 MHz, targeting embedded control in industrial, consumer, automotive, and low-power applications. Within Microchip's portfolio, PIC18LF devices sit below the standard PIC18F parts and use 'LF' to mark the wider VDD range and lower-voltage capability. Key features of the PIC18LF252T-I/SOG include 32 KB Flash for code storage, 1.5 KB RAM, 256 bytes of data EEPROM, 23 digital I/O pins, one 8-bit and three 16-bit timers, a 10-bit ADC with up to 5 channels, a USART, an MSSP (SPI/I2C) port, two analog comparators, and a capture/compare/PWM (CCP) module. The wide 2.0–5.5 V operating range makes the part suitable for both 3.3 V and 5 V rails. The 28-SOIC wide-body package (300 mil) provides a thermally robust footprint for hand-soldered prototypes and production boards. The PIC18LF252 architecture uses a 16-bit instruction word with 8-bit data, supporting linear memory addressing and a hardware multiplier. The nanoWatt power-management features include multiple idle and sleep modes with peripheral gating, allowing the core to consume microamp-level current in deep sleep, which is critical for battery-powered and always-on designs. Typical applications include industrial sensor interface modules, low-power data loggers, motor-control signal conditioning, building automation controllers, and battery-powered instrumentation. The PIC18LF252T-I/SOG is also widely used as a cost-optimized main controller in HVAC thermostats, access control panels, and small consumer appliances where a CAN-less, USB-less MCU is sufficient. When designing with the PIC18LF252T-I/SOG, ensure decoupling capacitors (typically 100 nF plus a bulk 10 µF) are placed within 5 mm of the VDD pins, and that the MCLR pin is pulled high through a 10 kΩ resistor for normal operation. MPLAB X IDE with the XC8 compiler is the recommended firmware toolchain for this family. This page synthesizes distributor pricing, same-brand drop-in alternatives, and practical design notes not aggregated on a single datasheet or distributor page, giving engineers a one-stop reference for PIC18LF252T-I/SOG selection.

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PIC18LF2539-I/SO - 8-Bit MCU, 24KB Flash, 40MHz, 28-SOIC
PIC18LF2539-I/SO

PIC18LF2539-I/SO - 8-Bit MCU, 24KB Flash, 40MHz, 28-SOIC

The Microchip Technology PIC18LF2539-I/SO is an 8-bit PIC18 microcontroller with 24KB of Flash program memory, 1408 bytes of RAM, and a 40 MHz maximum operating frequency, housed in a 28-pin SOIC wide-body (7.50 mm) package. The 'LF' prefix denotes the low-voltage F-variant family designed to operate from 4.2 V to 5.5 V, and the -I/ industrial temperature grade supports -40 °C to +85 °C operation for harsh environments. The device integrates a 10-bit analog-to-digital converter (ADC) with up to 34 I/O ports and supports single-phase induction motor control via the PIC18 motor-control kernel. The PIC18 is an 8-bit modified Harvard RISC microcontroller family — a category of MCU that executes instructions in a single clock cycle (or four clock cycles for branches/table reads), features separate program and data buses for simultaneous instruction fetch plus operand access, and includes a hardware multiplier for fast arithmetic. Within the broader taxonomy: microcontroller -> 8-bit MCU -> PIC18 family -> PIC18F/LF25xx motor-control sub-family -> power-management and motion-control applications. The LF family targets low-power and battery-friendly designs where 5 V system rails are common. Key features of the PIC18LF2539-I/SO include 24KB of self-programmable Flash memory, 256 bytes of EEPROM, an integrated 10-bit ADC, Capture/Compare/PWM (CCP) and Enhanced CCP modules for motor control, a USART, MSSP (SPI/I2C), and a 34-channel I/O structure with individual direction control. The 40 MHz clock yields up to 10 MIPS instruction throughput, suitable for closed-loop motor control loops in real time. The integrated motor-control kernel provides dedicated PWM, quadrature encoder interface, and Power Factor Correction (PFC) primitives specifically tuned for single-phase induction motors. The 28-SOIC wide-body (0.295 in / 7.50 mm) package is pin-compatible with the PIC18F2539-I/SO (5 V F-variant) and accepts standard surface-mount reflow profiles. Internal oscillator options reduce BOM cost by eliminating an external crystal in non-precision applications, and the Flash memory supports in-circuit serial programming (ICSP) for field updates. An integrated Power-On Reset (POR) and Brown-Out Reset (BOR) simplify power-rail sequencing. Typical applications include single-phase induction motor drives (washing machines, fans, pumps, small kitchen appliances), industrial control panels, white-goods inverters, sensor signal conditioning with on-chip ADC, and consumer motor-driven products. The combination of 40 MHz throughput and a dedicated motor-control kernel makes this MCU particularly well suited to field-oriented control (FOC) for single-phase BLDC/induction motors where deterministic interrupt latency is critical. A common design consideration: choosing the LF (4.2 V–5.5 V) variant versus the F (4.2 V–5.5 V in F2; 2.0 V–5.5 V in K-series) variant depends on whether your system runs from a regulated 5 V rail or from a wider input range. Designers should verify the brown-out voltage threshold and ADC reference topology in the manufacturer datasheet when migrating between sub-families. Note that the SOIC package dissipates less power than the SPDIP package — verify thermal rise during sustained high-I/O switching. This page synthesises distributor pricing from DigiKey and Octopart, Microchip cross-references, and practical design notes not consolidated in any single source, giving engineers a single point of decision.

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PIC18LF2539-I/SP - 8-Bit 40MHz MCU 24KB Flash 28-SPDIP | Microchip
PIC18LF2539-I/SP

PIC18LF2539-I/SP - 8-Bit 40MHz MCU 24KB Flash 28-SPDIP | Microchip

The Microchip Technology PIC18LF2539-I/SP is an 8-bit RISC microcontroller from the PIC® 18F family, featuring 40 MHz operation, 24 KB (12K x 16) of Flash program memory and approximately 1408 bytes of RAM, housed in a 28-pin SPDIP (Skinny Plastic DIP) through-hole package. The "LF" prefix designates the extended low-voltage family, allowing operation from 2.0 V to 5.5 V for battery-powered designs, while the "I/SP" suffix denotes the industrial temperature range (-40 °C to +85 °C) and SPDIP-28 package. The device integrates enhanced Flash, a 10-bit Analog-to-Digital Converter, capture/compare/PWM modules, and multiple serial communication peripherals, all on a single enhanced Harvard-architecture core. An 8-bit microcontroller (MCU) is a programmable single-chip processor that combines a CPU, non-volatile program memory (Flash/ROM), volatile data memory (RAM), and peripheral interfaces on one die. PIC18 devices sit within a hierarchy of microcontroller architectures: PIC10/12/14/16/18 family -> 8-bit MCU class -> microcontroller -> embedded IC -> semiconductor. The PIC18 architecture is the high-end 8-bit line of Microchip's portfolio, featuring a 16-bit instruction word for improved code density, hardware multiplier for DSP-style operations, and up to 16 MIPS execution speed. Key specifications include 40 MHz maximum clock with 10 MIPS sustained throughput, 21 digital I/O pins (per Mouser listing) capable of source/sink 25 mA each, an internal 8 MHz oscillator, and Flash self-programming support via In-Circuit Serial Programming (ICSP). The -LF low-voltage variant enables direct Li-Ion battery operation without external regulation. Brown-out Reset (BOR), Power-on Reset (POR), Watchdog Timer (WDT), and an enhanced instruction set with C-compiler friendly architecture round out the core feature set. Typical applications include industrial control (sensor conditioning via 10-bit ADC, motor control via ECCP module), automotive body electronics and HMI (HVAC, lighting), consumer appliances with user interfaces, low-power remote sensor nodes, and USB/serial-interface embedded products using the USART module. The 28-SPDIP package is selected for through-hole prototyping, breadboarding, educational platforms, and designs requiring easy rework or hand-soldering. When designing with this device, ensure the configuration bits (fuses) and oscillator selection are correct for the chosen clock source. For low-power battery applications, take advantage of the LF voltage range and use Sleep mode with WDT or external interrupts to minimize current draw to microampere levels.

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PIC18LF2539T-I/SO - 8-bit 40MHz 24KB Flash MCU | Microchip
PIC18LF2539T-I/SO

PIC18LF2539T-I/SO - 8-bit 40MHz 24KB Flash MCU | Microchip

The Microchip Technology PIC18LF2539T-I/SO is an 8-bit PIC18 microcontroller running at 40MHz with 24KB (12K x 16) of Flash program memory, packaged in a 28-pin SOIC (SO, 0.295 inch / 7.50mm body width). The 'LF' prefix indicates the low-voltage F-variant silicon, optimized for operation across 2.0V to 5.5V supply rails, while the 'T' suffix designates the tape-and-reel shipping format. A microcontroller (MCU) is a single-chip computer containing a processor core, program and data memory, programmable I/O, and on-chip peripherals such as timers, capture/compare modules, and communication interfaces. PIC18 microcontrollers belong to Microchip's PIC18 family, which sits in the middle of the 8-bit PIC portfolio - above the baseline PIC10/12/16 families and below the 16-bit dsPIC70/PIC24 families - and is widely used in motor control, power conversion, and embedded control applications. Key features of the PIC18LF2539 include 1408 bytes of RAM, 21 digital I/O pins, integrated Power Control PWM (PCPWM) modules tailored for variable-frequency drive control, and hardware multipliers supporting single-cycle 8x8 multiplication. The 40MHz oscillator yields a 10 MIPS instruction throughput, enabling deterministic execution of motor-control state machines. The I in the part marking indicates the industrial temperature grade of -40C to +85C, and the SO suffix denotes the 28-SOIC plastic package. The PIC18LF2539 architecture combines an 8-bit Harvard RISC core with dual oscillator options and on-chip 10-bit ADC support. Internal peripherals include an Enhanced Capture/Compare/PWM module, a Master Synchronous Serial Port (MSSP) for SPI/I2C, an Enhanced Universal Synchronous/Receiver/Transmitter (EUSART), and a parallel slave port, giving designers a complete control platform in a single IC. Typical applications include three-phase AC induction motor control, BLDC and PMSM variable-frequency drives, switched-mode power supplies with digital control loops, solar micro-inverters, and industrial automation controllers requiring deterministic PWM generation at high update rates. When designing with this device, ensure the supply voltage stays within the LF core's 2.0V-5.5V range and provide adequate decoupling on VDD/AVDD pairs. Use the ICD 3 or PICkit 4 programmer for in-circuit debug and Flash programming. This page synthesizes distributor pricing, same-package drop-in alternatives, application examples, and practical design notes not aggregated on a single manufacturer or distributor page.

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PIC18LF2550-I/SO - 8-bit USB MCU 48MHz 32KB Flash SOIC-28 | Microchip
PIC18LF2550-I/SO

PIC18LF2550-I/SO - 8-bit USB MCU 48MHz 32KB Flash SOIC-28 | Microchip

The Microchip Technology PIC18LF2550-I/SO is an 8-bit PIC18 microcontroller IC with integrated Full-Speed USB 2.0 transceiver, delivering up to 48 MHz CPU performance, 32 KB of Flash program memory and 2 KB of RAM, housed in a 28-pin SOIC wide-body package. The device targets low-voltage applications with a supply range typically suited to 2.0V-5.5V operation, making it compatible with both battery-powered and 5V systems. What is a PIC18 microcontroller? PIC18 is a family of 8-bit Harvard-architecture microcontrollers from Microchip Technology, sitting within the broader PICmicro hierarchy (PIC10/12/16/18/24/32 families) and competing with AVR, 8051 and Cortex-M devices in the 8/32-bit microcontroller market. The PIC18 family specifically adds enhanced instruction set, linear memory addressing, and richer peripheral integration compared to baseline PIC16 devices, while remaining code-compatible with PIC16C745 USB parts for migration ease. Key features of the PIC18LF2550 include Full-Speed USB 2.0 compliance with on-chip transceiver and 1.5/12 Mbps endpoints, 32 KB self-programmable Flash, 2 KB SRAM, 256 bytes of EEPROM, a 10-bit ADC with up to 10 channels, two analog comparators, Capture/Compare/PWM modules, and Enhanced Universal Synchronous/Asynchronous Receiver/Transmitter (EUSART). The 'LF' prefix denotes the extended low-voltage process node enabling operation down to approximately 2.0V, distinguishing it from the standard PIC18F2550 which carries a slightly higher minimum Vdd. Architecturally, the PIC18LF2550 uses a 16-bit modified Harvard architecture with two-cycle instruction fetch and single-cycle ALU execution, augmented by a hardware multiplier and a C compiler-friendly orthogonal register set. The integrated SIE (Serial Interface Engine) and USB transceiver eliminate external PHY needs, allowing direct USB D+/D- connection with minimal external components. Typical applications include USB HID peripherals, USB-to-UART bridges, USB game controllers, low-speed data loggers with USB interface, and embedded learning platforms where the free Microchip USB stack and MPLAB X IDE shorten development time. The 28-pin SOIC package supports hand-soldering and breadboard-friendly prototyping via carrier boards. When migrating to newer designs, microengineeringlectronic's Designers should note that the 'LF' variants are recommended for systems below 4.2V, whereas the standard 'F' parts optimize for 4.2V-5.5V operation. Decoupling capacitors (100 nF ceramic plus bulk 10 uF) must be placed within 5 mm of the Vdd pins, and the Vusb pin requires a 200 nF capacitor to ground for internal regulator stability. The internal 48 MHz oscillator can be derived from a 20 MHz crystal via the PLL block, eliminating external high-frequency clock components. This page synthesizes distributor stock visibility, parametric comparison against drop-in alternatives, USB-specific design notes and price tier breakpoints not found in the standalone manufacturer datasheet.

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PIC18LF2550-I/SP - 8-bit 48MHz 32KB Flash USB MCU | Microchip
PIC18LF2550-I/SP

PIC18LF2550-I/SP - 8-bit 48MHz 32KB Flash USB MCU | Microchip

The Microchip Technology PIC18LF2550-I/SP is an 8-bit CMOS flash microcontroller in the PIC18F family, integrating a Full-Speed USB 2.0 transceiver and delivering up to 48 MHz (16 MIPS) CPU performance from a 32 KB Flash program memory and 2 KB RAM in a 28-pin SPDIP (Skinny Plastic DIP) package. An 8-bit PIC microcontroller is a single-chip computer built on Microchip's RISC (Reduced Instruction Set Computer) Harvard architecture. Within the broader taxonomy it sits as: microcontroller -> embedded controller -> MCU -> 8-bit MCU -> PIC18 family. The 'LF' prefix denotes the low-voltage F-variant core that operates from 2.0V to 5.5V across industrial temperature ranges, while the 'F2550' part number identifies a member of the PIC18F2x50 sub-family characterized by on-chip Full-Speed USB. Devices in this family are widely used as cost-effective embedded controllers in consumer, industrial, and hobbyist designs. Key features of the PIC18LF2550-I/SP include a 10-bit ADC with up to 10 input channels, a USART with LIN master/slave support, an MSSP peripheral configurable for SPI (up to 10 Mbit/s) or I2C (master/slave), 25 mA source/sink capability on I/O pins for direct LED drive, an internal 31 kHz to 8 MHz oscillator with PLL, nanoWatt power management, and ICD (In-Circuit Debug) support through two dedicated pins. The integrated USB 2.0 Full-Speed transceiver (12 Mbit/s) eliminates the need for an external PHY, a major advantage for HID, CDC, and custom-USB designs. The PIC18LF2550-I/SP uses an enhanced PIC18 Harvard core with 16-bit-wide instructions, an 8-bit data path, hardware multiply, and a 32-level hardware stack. The CPU executes one instruction per 4 oscillator cycles, and the integrated PLL allows a 48 MHz system clock from a low-cost 4 MHz or 20 MHz external crystal, directly deriving the USB 48 MHz clock without an external oscillator. Typical applications include USB human-interface devices (HID keyboards, mice, custom joysticks), USB-to-UART bridges (CDC class), low-cost logic analyzers and PICkit programmers, sensor data loggers with USB upload, industrial control panels with USB firmware update, and educational/hobbyist development boards such as the open-source PICKit2 demo board clones. Designers choose this part when they need a 5V-tolerant 8-bit MCU with on-chip USB in a through-hole DIP package that is easy to breadboard and hand-solder. A key design consideration is that the USB D+ line requires a 1.5 kohm pull-up to 3.3V to signal Full-Speed connection; Microchip's datasheet recommends a software-controlled I/O pin driving this resistor so the host enumerates the device only when firmware is ready. Decoupling caps of 100 nF plus 4.7-10 uF bulk should be placed within 5 mm of VDD/VSS pins, and the VUSB pin must have a 220 nF plus 0.1 uF local bypass for the internal USB transceiver regulator. This page synthesizes distributor pricing, drop-in PIC18F family alternatives, and practical design notes not found in the manufacturer datasheet alone, with cross-references to SPDIP-package PIC18F variants that pin-to-pin replace the PIC18LF2550-I/SP.

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PIC18LF2550T-I/SO - 48MHz 8-bit USB MCU 32KB Flash 28-SOIC | Microchip
PIC18LF2550T-I/SO

PIC18LF2550T-I/SO - 48MHz 8-bit USB MCU 32KB Flash 28-SOIC | Microchip

The Microchip Technology PIC18LF2550T-I/SO is an 8-bit PIC18F-family microcontroller with integrated Full-Speed USB 2.0, 32KB (16K x 16) of Flash program memory, 2KB SRAM, and 256 bytes of EEPROM, operating up to 48MHz from a wide 2.0V-5.5V supply. It is housed in a 28-pin SOIC (7.50mm body) package supplied on Tape and Reel. A PIC18F-series microcontroller is a member of Microchip's enhanced 8-bit RISC architecture family, combining a Harvard bus with a rich peripheral set including USB, I2C, SPI, EUSART (LIN-capable), multiple timers, ADC, and nanoWatt power management. PIC MCUs sit at the top of the 8-bit hierarchy - PIC -> PIC18F family -> PIC18F2550 sub-family - and serve as a low-cost, deterministic alternative to 32-bit MCUs in USB-enabled embedded applications. The integrated USB 2.0 Full-Speed transceiver eliminates the need for an external PHY, simplifying board design. Key features include 48MHz maximum CPU clock (12 MIPS), hardware Full-Speed USB 2.0 transceiver, 24 digital I/O pins, a 10-bit ADC with up to 13 channels, two 8-bit and three 16-bit timers, nanoWatt power-saving modes, and an internal oscillator. The wide 2.0V-5.5V operating range allows single-cell Li-ion or regulated 5V supply designs with the same firmware. The architecture combines an enhanced 16-bit instruction set with 8-bit data path, multi-vector interrupts with hardware context save, C-compiler-friendly orthogonal design, and 32-level hardware stack. The integrated USB SIE (Serial Interface Engine) handles packet framing, CRC, and endpoint management in hardware, leaving CPU bandwidth for application code. Typical applications include low-cost USB peripherals (HID, CDC, custom-class devices), sensor interfaces and instrumentation, USB-to-UART bridges, consumer electronics, industrial control nodes, and educational/development boards. The wide voltage range and nanoWatt modes also make it suitable for battery-powered edge devices. When designing with this part, ensure the VUSB pin is supplied with a stable 3.3V for the internal USB transceiver, and follow Microchip's USB hardware design guidelines for PCB layout. Configure the oscillator mode correctly for the chosen clock source - the internal oscillator is suitable for most non-USB applications; USB Full-Speed requires a 48MHz clock derived from a 20MHz crystal or the internal PLL. This page synthesizes distributor pricing, drop-in alternatives within the same SOIC-28 footprint, and practical USB design notes not found in the bare datasheet.

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PIC18LF2553-I/SO - 8-Bit 40MHz USB MCU 32KB Flash 28-SOIC
PIC18LF2553-I/SO

PIC18LF2553-I/SO - 8-Bit 40MHz USB MCU 32KB Flash 28-SOIC

The Microchip Technology PIC18LF2553-I/SO is an 8-bit PIC18 microcontroller featuring a 40MHz CPU, 32KB of Flash program memory, 2KB of SRAM, and integrated Full-Speed USB 2.0 in a 28-pin SOIC package. As the low-voltage 'LF' variant it operates across 2.0V to 5.5V, making it suitable for both 3.3V and 5V rails, while the standard PIC18F2553 counterpart runs at 4.2V to 5.5V with a higher 48MHz clock. A microcontroller (MCU) is a single-chip computer containing a processor core, program and data memory, programmable I/O peripherals, and often communication interfaces. Within the broader taxonomy it sits as: microcontroller -> embedded processor -> semiconductor -> integrated circuit. PIC18 devices use an enhanced 8-bit RISC architecture with hardware multiplier and 16-bit instructions, a step up from baseline and mid-range PIC16 parts in both performance and peripheral integration. Key features include a 10-bit ADC with up to 12 input channels, 35 MIPS instruction throughput at 40MHz, nanoWatt Technology power management with multiple idle/sleep modes, an internal 8MHz and 31kHz oscillator, an enhanced USART, MSSP (SPI/I2C), two CCP/ECCP modules, and an on-chip Full-Speed USB 2.0 device/host/OTG transceiver with internal pull-ups. These blocks let the PIC18LF2553 replace external USB interface chips in cost-sensitive embedded designs. The architecture is built on a 14-bit instruction word FLASH program memory and a 32-level deep hardware stack. Self-programmability via ICSP allows field firmware upgrades, while the nanoWatt Technology modes drop supply current below 1 microampere in sleep, a critical spec for battery-powered USB HID peripherals. Typical applications include USB Human Interface Devices (keyboards, mice, game controllers), CDC virtual COM port bridges, USB-to-UART converters, low-cost data loggers with USB download, and educational development boards. The wide 2.0V-5.5V operating range also suits lithium battery packs and 5V industrial control. Designers should note that 5V tolerant digital inputs simplify interface to legacy logic, while USB bus-powered designs must allocate adequate bulk capacitance on VBUS to meet USB inrush requirements. The 28-pin SOIC footprint also offers hand-soldering friendly alternative to QFN. This page synthesises distributor pricing, same-brand and cross-brand drop-in alternatives, and practical design notes that go beyond the manufacturer datasheet summary.

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PIC18LF2553-I/SP - 8-bit 32KB MCU, USB 2.0 FS, 28-SPDIP | Microchip
PIC18LF2553-I/SP

PIC18LF2553-I/SP - 8-bit 32KB MCU, USB 2.0 FS, 28-SPDIP | Microchip

The Microchip Technology PIC18LF2553-I/SP is an 8-bit PIC18 RISC microcontroller featuring 32 KB of Flash program memory, 2 KB of SRAM, and an integrated Full-Speed USB 2.0 transceiver, housed in a 28-pin SPDIP (0.300 inch, 7.62 mm) through-hole package. Operating at up to 40 MHz (10 MIPS) from a 2.0V to 5.5V supply, the part carries a 12-bit ADC, a 10-bit DAC, and a full complement of CCP/ECCP, MSSP (SPI/I2C), EUSART, and 10-bit timers for embedded peripheral integration. An 8-bit microcontroller is a CPU that processes data in 8-bit chunks and is widely used in cost-sensitive, low-power embedded applications. The PIC18F family is Microchip's enhanced mid-line architecture combining RISC (Reduced Instruction Set Computer) pipeline performance with rich peripheral integration. Within the broader taxonomy, the PIC18LF2553 sits at the following hierarchy: microcontroller -> MCU -> semiconductor -> integrated circuit -> embedded computing platform. The 'LF' suffix designates the low-voltage/low-power variant, while 'F' denotes Flash program memory. The PIC18LF2553 integrates a USB 2.0 Full-Speed transceiver and SIE on-chip, eliminating the need for an external PHY for low-bandwidth USB device/embedded-host applications. Key peripherals include a 12-bit 10-channel ADC, two 8-bit timers and three 16-bit timers, a 10-bit PWM module, MSSP for SPI and I2C, enhanced USART, and a 10-bit DAC. The device supports in-circuit debugging via ICSP and self-programming via bootloader modes. The core uses a 16-bit modified-Harvard architecture with separate program and data buses, allowing an instruction fetch and a data access to occur in the same clock cycle. Self-programmable Flash supports field firmware updates via the USB bootloader, and the nanoWatt Technology feature set enables multiple low-power modes (Idle, Sleep, Deep Sleep) ideal for battery-operated designs. Typical applications include USB peripherals (HID, CDC/ACM, MIDI, custom vendor classes), low-cost data loggers, sensor hubs, industrial control front-ends, and educational/development boards that exploit the free USB stack and MPLAB X toolchain. Designers also use the LF2553 in pointer/gesture devices, smart sensor bridges, and small industrial sensor platforms. When selecting this part, verify the 2.0V-5.5V operating range matches downstream analog supplies and that 32 KB Flash / 2 KB RAM satisfies application code size; if not, migrate to PIC18LF46K22 or PIC18F4550 with larger memory in the same 28/40-pin family. This page synthesizes distributor pricing, same-family drop-in alternatives, and practical USB embedded design notes not found in the manufacturer datasheet.

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PIC18LF2553T-I/SO - 8-bit 40MHz USB MCU 32KB Flash | Microchip
PIC18LF2553T-I/SO

PIC18LF2553T-I/SO - 8-bit 40MHz USB MCU 32KB Flash | Microchip

The Microchip Technology PIC18LF2553T-I/SO is an 8-bit PIC18 microcontroller with 32KB of Flash program memory, 2KB of SRAM, and 256 bytes of EEPROM, running at up to 40MHz. Housed in a 28-pin SOIC wide-body package, it integrates a Full-Speed USB 2.0 transceiver (FS-USB), a 12-bit A/D converter with up to 12 channels, and nanoWatt Technology power management for low-power designs. The "LF" prefix denotes an extended low-voltage operating range of 2.0V to 5.5V, the "T" suffix indicates tape-and-reel packaging, and "I" indicates an industrial temperature range of -40°C to +85°C. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (RAM), non-volatile storage (EEPROM), and a rich set of peripherals onto one silicon die. The PIC18 family is Microchip's high-performance 8-bit architecture, building on the baseline PIC16 core with a 16-bit instruction word, hardware multiplier, and an enhanced instruction set. PIC18LF parts specifically target battery-powered and USB-bus powered designs by extending the operating voltage below the 4.2V minimum of the non-LF variants, enabling direct connection to USB (5V) or two alkaline cells (3V) without external level shifting. Key differentiating features of the PIC18LF2553 include the integrated Full-Speed USB 2.0 controller and transceiver, which eliminates external USB interface ICs and simplifies certification. nanoWatt Technology provides multiple idle and sleep modes with currents as low as microamps, making the part suitable for USB-powered or battery-powered applications. The Capture/Compare/PWM (CCP) and Enhanced CCP (ECCP) modules support motor control, while the Master Synchronous Serial Port (MSSP) provides both I2C and SPI host/client functionality. The 12-bit A/D converter enables precision analog sensing without an external ADC. Architecturally, the PIC18LF2553 uses an 8-bit data path with a 16-bit instruction word and a two-level deep hardware stack plus a 31-level software stack, executing most instructions in one instruction cycle (4 clock periods) for an effective throughput of 10 MIPS at 40MHz. The integrated USB SIE handles packet framing, CRC, and endpoint management in hardware, freeing the CPU for application code. The 32KB Flash supports self-programming under firmware control, allowing field-upgradeable devices. Typical applications include USB peripherals such as custom HID devices, USB-to-UART bridges, USB sensor interfaces, low-power data loggers, industrial sensor transmitters, and consumer USB accessories. The integrated USB also makes it a frequent choice for educational kits, hobbyist projects, and low-volume commercial USB products where adding an external USB IC would inflate BOM cost. When designing with this part, note that the wide-body (7.50mm) SOIC package is the largest 28-pin SMD footprint Microchip offers for this family; for space-constrained designs the same die is available in 28-pin SPDIP, 28-pin QFN, and 44-pin TQFP packages. The internal oscillator can reach 8MHz but accuracy is poor for USB; for USB operation an external 48MHz crystal is recommended. This page synthesizes distributor pricing, drop-in alternatives from the same PIC18F family, and practical design notes not found in the manufacturer datasheet alone.

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PIC18LF258-I/SO - 8-Bit 40MHz 32KB Flash MCU 28-SOIC | Microchip
PIC18LF258-I/SO

PIC18LF258-I/SO - 8-Bit 40MHz 32KB Flash MCU 28-SOIC | Microchip

The Microchip Technology PIC18LF258-I/SO is an 8-bit PIC18F-family microcontroller featuring a 40 MHz CPU clock, 32 KB (16K x 16) of on-chip Flash program memory, and a 28-pin SOIC package. It is part of the PIC18LF sub-family (the "LF" suffix indicates a low-voltage variant of the LF/F PIC18 line), optimized for operation across 4.2 V to 5.5 V supply rails with industrial-temperature robustness. The device integrates CAN 2.0B controller peripherals alongside standard PIC18 peripherals, making it a frequent choice for embedded networking. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path; it executes instructions from on-chip Flash memory, communicates with peripherals through programmable I/O pins, and integrates core peripherals such as timers, ADC, UART, and CAN controllers on the same silicon die. PIC18F devices sit above baseline PIC16 parts in the Microchip taxonomy (PIC16 -> PIC18 -> dsPIC33/PIC24 -> PIC32MX), offering richer instruction set (16-bit opcodes, 8-bit data), C-friendly architecture, and significantly more peripherals. The "LF" designation denotes low-voltage Flash process, enabling operation down to approximately 2.0 V in some LF variants, while the standard "F" part runs up to 5.5 V; the I/SO designator specifies industrial temperature grade (-40 C to +85 C) in SOIC package. Key features of the PIC18LF258 include 32 KB Flash, 1536 bytes of RAM, 256 bytes of EEPROM, 23 digital I/O pins, an integrated CAN 2.0B controller, a 10-bit ADC, two analog comparators, two USART modules, MSSP (SPI/I2C), and a 5-channel 8-bit PWM block. The part supports both ICSP (In-Circuit Serial Programming) and ICD (In-Circuit Debug) interfaces, allowing firmware updates and live debug without removing the device from the board. With 40 MHz oscillator and a 4-instruction pipeline, the device delivers up to 10 MIPS throughput, sufficient for modest real-time control loops. The architecture is built on a 16-bit enhanced Harvard structure, separating program and data bus widths. This dual-bus design lets the CPU fetch instructions from Flash while simultaneously reading/writing SRAM over the data bus, eliminating von Neumann bottlenecks. The internal RC oscillator and PLL support flexible clocking options; the CAN 2.0B engine has 3 transmit and 2 receive buffers plus acceptance filters, suitable for high-reliability industrial and automotive networking. Typical applications include industrial CAN-bus nodes (sensor aggregation, motor control feedback), building automation (HVAC controllers, lighting networks), automotive body and accessory modules, low-cost serial-to-CAN bridges, and embedded sensing platforms requiring 8-bit determinism with low power consumption. The 28-SOIC package provides hand-solderable, breadboard-friendly access for prototyping while remaining production-suitable for automated assembly lines. When designing with the PIC18LF258-I/SO, ensure decoupling: place a 100 nF ceramic capacitor directly between VDD and VSS pins, plus a bulk 10 uF electrolytic on the main supply rail. Always configure unused I/O as outputs and tie to ground through 10kΩ resistors. For CAN bus applications, terminate the bus with 120Ω resistors at each physical end and use a CAN transceiver such as the MCP2551 or TJA1050 between the MCU and the bus. 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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PIC18LF2580-I/ML - 8-bit 40MHz 32KB Flash MCU | Microchip
PIC18LF2580-I/ML

PIC18LF2580-I/ML - 8-bit 40MHz 32KB Flash MCU | Microchip

The Microchip Technology PIC18LF2580-I/ML is a high-performance 8-bit CMOS flash microcontroller based on the PIC18 RISC architecture, delivering up to 16 MIPS throughput at a 40 MHz clock. It integrates 32 KB (16K x 16) of Flash program memory, 1536 bytes of SRAM, and 256 bytes of EEPROM, and is housed in a 28-pin QFN (6x6 mm) package with an exposed pad. The 'LF' variant supports a wide 2.0V to 5.5V supply range, with operation from 2.5V/3.3V/5V rails, making it suitable for both battery-powered and line-powered designs. A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory, data memory, and programmable I/O peripherals. The PIC18 family specifically uses an enhanced 8-bit RISC core with a hardware multiplier, 16-bit instructions, and a deterministic interrupt model, and sits within the broader taxonomy: PIC18 -> PIC microcontrollers -> 8-bit microcontrollers -> microcontroller -> embedded processor -> semiconductor. The PIC18LF2580 specifically belongs to the PIC18F2580/2480 sub-family, which adds an integrated CAN 2.0B controller with full acceptance filtering, alongside MSSP (I2C/SPI) and enhanced USART peripherals. Key features include the integrated ECAN module for industrial and automotive networking, a 10-bit ADC with up to 8 channels, two 8-bit and three 16-bit timers, a 10-bit PWM module with capture/compare, and 25 digital I/O pins. The nanoWatt Technology power-management suite offers multiple idle and sleep modes with on-the-fly clock switching. The 28-QFN package provides a compact 6x6 mm footprint with an exposed thermal pad (EP) for improved thermal performance at higher ambient temperatures. Typical applications include CAN-based industrial automation nodes (sensor hubs, motor control sidecars, building-automation gateways), automotive body and chassis subsystems requiring CAN connectivity, low-cost embedded control boards, sensor signal conditioning, and battery-powered metering. The on-chip CAN peripheral eliminates the need for an external CAN transceiver controller, simplifying BOM and PCB layout for distributed control networks. When designing with this part, place a 100 nF decoupling capacitor within 5 mm of VDD, add a bulk capacitor on the CAN supply rail, and connect the exposed thermal pad to a ground copper pour of at least 25 mm² for adequate heat spreading. Verify that the chosen CAN transceiver (e.g., MCP2551 or MCP2561) matches the bus topology and that the termination resistance is properly applied at the bus ends. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes that are not found in the manufacturer datasheet alone, helping engineers evaluate replacement options and layout trade-offs.

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PIC18LF2580-I/SO - 8-Bit 40MHz 32KB Flash MCU 28-SOIC | Microchip
PIC18LF2580-I/SO

PIC18LF2580-I/SO - 8-Bit 40MHz 32KB Flash MCU 28-SOIC | Microchip

The Microchip Technology PIC18LF2580-I/SO is an 8-bit PIC18 microcontroller with 32KB Flash program memory, 1.5KB RAM, and an integrated CAN controller, housed in a 28-pin SOIC package. The "LF" suffix denotes the low-voltage F-variant core that operates down to 2.0V, while the "I" suffix indicates the industrial temperature range of -40C to +85C. The part number suffix "/SO" specifies the 7.50 mm wide 28-SOIC surface-mount outline. The PIC18LF2580 combines Microchip's enhanced FLASH PIC18 architecture with on-chip CAN 2.0B, ECAN, and 10-bit ADC, all clocked from an internal oscillator or an external crystal up to 40 MHz. The on-chip 32 KB Flash is organized as 16K x 16 words, giving 32,768 bytes of self-programmable program storage. A 1.5 KB data SRAM and 256 bytes of data EEPROM accompany the Flash, providing ample working memory for typical CAN-attached sensor and actuator applications. A PIC microcontroller is a self-contained 8-bit RISC computer on a single CMOS die, integrating CPU core, program memory, RAM, peripherals, and I/O on one chip. PIC18F-family parts use a 16-bit instruction word and a 16-bit data path, achieving up to 10 MIPS at 40 MHz while preserving the byte-oriented programming model. They sit higher than the PIC16 and PIC10/12/16 families and below the dsPIC and PIC32 families, occupying the mid-range of Microchip's 8-bit portfolio. The PIC18LF2580 in particular extends the family with industrial-grade CAN connectivity, making it a common drop-in for 12V automotive-bus and factory-floor nodes. Key features of the PIC18LF2580-I/SO include 25 digital I/O pins across two ports, an integrated CAN 2.0B controller with ECAN support, a 10-bit ADC with up to 8 channels, two analog comparators, two 8-bit and three 16-bit timers, an Enhanced USART, MSSP for SPI/I2C, a 10-bit PWM, and a nanoWatt power management set with idle, sleep, and low-power modes. The integrated CAN module eliminates an external transceiver-less controller and simplifies bus-isolated hardware. Typical applications include industrial automation controllers, automotive CAN nodes (body, chassis, and diagnostic ECUs), HVAC controllers, sensor hubs with local intelligence, and low-power remote monitoring devices. The wide operating voltage (2.0 V to 5.5 V) and CAN bus support also suit it to battery-backed nodes on industrial 24V buses. When designing, ensure the CAN TX/RX pins route through a TJA1050 or similar transceiver, and place a 100 nF decoupling capacitor within 5 mm of VDD. The industrial temperature grade and 40 MHz MIPS make this part a strong choice for cost-sensitive CAN-attached nodes where reliability over commercial grade is required.

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PIC18LF2580-I/SP - 8-Bit 40MHz MCU 32KB Flash 28-SPDIP | Microchip
PIC18LF2580-I/SP

PIC18LF2580-I/SP - 8-Bit 40MHz MCU 32KB Flash 28-SPDIP | Microchip

The Microchip Technology PIC18LF2580-I/SP is an 8-bit RISC microcontroller from the PIC18F family featuring an enhanced flash architecture, 32 KB of program flash memory (16K x 16 words), 1536 bytes of SRAM, and 256 bytes of data EEPROM, all integrated into a 28-pin SPDIP (Skinny Plastic DIP) through-hole package. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (ROM/Flash), data memory (RAM), peripherals, and I/O on one die. The PIC18 family represents the highest-performance 8-bit tier of Microchip's PIC architecture, featuring a 16-bit instruction word with an 8-bit data path, a hardware multiplier, and a C compiler-friendly orthogonal instruction set. Microcontrollers sit within the broader embedded-system hierarchy: MCU -> microprocessor-based device -> embedded computing platform -> electronic system. Key features include a maximum CPU clock of 40 MHz (10 MIPS instruction throughput), an operating voltage range of 2.0 V to 5.5 V (LF variant - the F variant runs 4.2 V to 5.5 V), 25 general-purpose digital I/O pins, 8 channels of 10-bit ADC, two 8-bit and three 16-bit timers, two capture/compare/PWM modules, and a hardware CAN 2.0B controller (ECAN). Communications peripherals include one USART with LIN support, one MSSP that operates as either I2C (Master/Slave) or SPI (Master/Slave), making this part especially attractive for networked industrial and automotive applications. The PIC18LF2580 architecture uses a Harvard-style bus with separate program and data memory paths, an internal 31 kHz to 8 MHz RC oscillator (with PLL), and nanoWatt XLP-style power management. The integrated ECAN module is a major differentiator: most 8-bit MCUs lack hardware CAN, forcing designers to bit-bang external controllers. The device is rated for industrial temperature operation from -40C to +85C and supports in-circuit serial programming (ICSP) plus in-circuit debugger (ICD) interfaces. Typical applications include automotive body and chassis nodes (using the CAN interface), industrial CANopen and DeviceNet slave devices, building-automation sensor nodes, HVAC controllers, and small appliances that require reliable on-chip CAN without an external transceiver-controlled MCU. The -I/SP part suffix indicates industrial temperature range and SPDIP package. When designing with this part, plan a clean CAN bus topology with proper termination (120 ohm at each end) and a TJA1050 or MCP2551 transceiver between the MCU's CANTX/CANRX pins and the bus. Reserve ICPGC/ICPGD/ICPMCLR pins for ICSP/ICD and add a 10 kohm pull-up on MCLR to allow reliable reset behavior; configure the CONFIG words in code before any other operation. This page synthesizes distributor pricing, same-family drop-in alternatives, ECAN design considerations, and practical layout guidance not found in the standalone datasheet.

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PIC18LF2580T-I/SO - 8-bit 40MHz 32KB Flash MCU | Microchip
PIC18LF2580T-I/SO

PIC18LF2580T-I/SO - 8-bit 40MHz 32KB Flash MCU | Microchip

The Microchip Technology PIC18LF2580T-I/SO is a low-power variant of Microchip's PIC18F2580 family, an 8-bit RISC microcontroller built around an enhanced PIC18 core running up to 40 MHz with 32 KB (16K x 16 words) of Flash program memory. It is housed in a 28-pin SOIC (Small Outline IC) package with a 300-mil (7.5 mm) body width, suitable for surface-mount industrial designs. The 'LF' prefix indicates the low-voltage core variant, optimized for operation across 2.0 V to 5.5 V, while the '2580' family integrates the CAN (Controller Area Network) module for in-vehicle and industrial networking. A microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (Flash/ROM), working memory (RAM), and peripherals. The PIC18 family belongs to Microchip's 8-bit MCU portfolio, which sits within the broader category of embedded microcontrollers. Within the Microchip ecosystem, PIC18 occupies the mid-range tier between baseline PIC10/12/16 and the 16-bit PIC24/dsPIC33 families. Designers select PIC18 when they need deterministic performance, integrated peripherals (CAN, ADC, PWM), and the longevity of the MPLAB toolchain without moving to a 32-bit ARM Cortex-M architecture. Key features of the PIC18LF2580T-I/SO include 1.5 KB of RAM and 256 bytes of EEPROM data memory, an 8-channel 10-bit Analog-to-Digital Converter (ADC), an Enhanced CAN module (ECAN) supporting CAN 2.0B, three timers (Timer0/1/2/3), two USART modules, an MSSP for SPI/I2C, and a 10-bit ADC. The 'T' suffix in the part number denotes Tape-and-Reel packaging for high-volume SMT assembly, and the 'I' indicates the industrial operating temperature range of -40°C to +85°C. Architecturally, the LF2580 combines the PIC18 Harvard-style RISC CPU (75 instructions, hardware multiplier) with on-chip debug support via ICSP (In-Circuit Serial Programming). The CAN module provides hardware message filtering and acceptance filtering, hardware acceptance masks, and double-buffered FIFOs. The ADC can be triggered by CCP timers or software, supporting low-power sleep conversion. The device operates from a single 2.0 V - 5.5 V supply and includes a low-power Sleep mode drawing micro-ampere currents. Typical applications include CAN-enabled industrial sensor nodes, automotive body and powertrain sub-systems at module-level nodes, HVAC controller boards, building automation gateways, CAN-to-UART bridges, OBD-II diagnostic tools, LED lighting control with CAN signaling, and standalone CAN protocol repeaters. Designers also deploy it in retrofit BMS (Battery Management System) satellite-cell controllers communicating over CAN-bus. When designing with this part, ensure that the CAN bus is terminated with a 120 Ω resistor at each end of the bus segment, and that the MCP2551 or similar CAN transceiver is correctly DC-biased. The MCU's HF-INTOSC (internal oscillator) is factory-calibrated to ±1 % across voltage and temperature, allowing designs without an external crystal for cost-sensitive layouts. This page synthesizes distributor pricing from DigiKey and Mouser, drop-in compatible alternatives drawn from the PIC18LF2580/2480 and PIC18F2580/2480 families, and practical design notes covering CAN bus termination and ICSP programming that are not duplicated in the manufacturer's datasheet.

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PIC18LF2585-I/SP - 8-bit 40MHz 48KB Flash MCU w/ECAN | Microchip
PIC18LF2585-I/SP

PIC18LF2585-I/SP - 8-bit 40MHz 48KB Flash MCU w/ECAN | Microchip

The Microchip Technology PIC18LF2585-I/SP is an 8-bit RISC microcontroller from the PIC18F family, featuring 48KB of Flash, 3328B of RAM, integrated ECAN (Enhanced Controller Area Network) peripheral, and a 10-bit A/D converter. Operating at 40MHz from a 4.2V to 5.5V supply, this industrial-grade part is delivered in a 28-pin SPDIP (Skinny Plastic DIP, /SP) through-hole package, making it ideal for prototyping and industrial designs that benefit from socketed or hand-solderable mounting. An 8-bit microcontroller (MCU) is a programmable integrated circuit that executes instructions from on-chip memory using an 8-bit data path. PIC microcontrollers belong to the microcontroller hierarchy as a RISC-based embedded controller, sitting between simple 8-bit MCUs (e.g., 8051) and 32-bit ARM Cortex-M devices in performance and complexity. The PIC18F family adds an enhanced 16-bit instruction set with 8-bit data path, Harvard architecture, and rich peripheral integration (ECAN, ADC, PWM, USART) typically found in higher-tier parts. Key features of the PIC18LF2585-I/SP include: 48KB (24K x 16) self-programmable Flash program memory, 3328 bytes of data RAM, 256 bytes of EEPROM, an integrated ECAN module compliant with CAN 2.0B active, a 10-bit A/D converter with up to 8 channels, 34 digital I/O pins, nanoWatt power management for low-power sleep modes, and an industrial temperature range of -40C to +85C. The 28-SPDIP package provides a robust through-hole footprint suitable for industrial environments. Architecturally, the PIC18LF2585 leverages Microchip's enhanced Harvard architecture with separate program and data buses, supporting linear addressing of up to 2MB of program memory. The integrated ECAN controller hardware handles message filtering, acceptance masks, and prioritized message handling in hardware, offloading CPU work and enabling deterministic CAN bus performance critical for automotive and industrial networking applications. Typical applications include industrial CAN bus nodes, automotive body and chassis ECUs, sensor interface boards, motor control peripherals, building automation gateways, and embedded industrial control systems. The combination of large Flash and rich communication peripherals makes it a versatile workhorse for CAN-enabled industrial designs. When designing with this part, ensure proper decoupling of VDD/AVDD with 100nF ceramic capacitors and bulk capacitance on the analog supply. The 28-SPDIP footprint simplifies prototyping but consumes more PCB area than QFN alternatives; choose QFN-packaged siblings for volume production. Always include the MCLR pull-up and ICSP programming header for in-circuit debugging.

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PIC18LF258T-I/SO - 8-Bit 40MHz 32KB Flash MCU w/ CAN | Microchip
PIC18LF258T-I/SO

PIC18LF258T-I/SO - 8-Bit 40MHz 32KB Flash MCU w/ CAN | Microchip

The Microchip Technology PIC18LF258T-I/SO is an 8-bit PIC18F-family RISC microcontroller integrating a 32KB (16K x 16) enhanced Flash program memory, 1.5KB RAM, an integrated CAN 2.0B module, and 23 digital I/O in a 28-pin SOIC package. It executes instructions at up to 40 MHz (10 MIPS) from a wide 2.0 V to 5.5 V LF (low-voltage F) operating range, making it ideal for industrial nodes that must run from a single-cell Li-ion or a regulated 5 V rail while staying below 40 mW of core power. What is an 8-bit microcontroller? An 8-bit MCU is a single-chip computer that processes data in 8-bit chunks using a Harvard-architecture CISC/RISC core. The PIC18F family extends Microchip's classic 14-bit instruction PIC16 baseline into 16-bit instruction words with 8-bit data paths, so it can address up to 2 MB of program memory while still being programmed by the same MPLAB X toolchain. Within the MCU hierarchy it sits above PIC16 mid-range parts (slower, less RAM) and below PIC24 dsPIC33 16-bit parts, and it belongs to the broader embedded microcontroller class of semiconductors. The 'LF' prefix denotes the low-voltage F variant, the 'T' suffix denotes Tape & Reel packaging, 'I' is the industrial -40C to +85C temperature grade, and '/SO' identifies the 28-pin 7.5 mm SOIC outline. Key features include 32KB enhanced Flash with self-programmability, 256 bytes of EEPROM, 10-bit ADC (8 channels, 8-channel mux), two 8-bit and three 16-bit timers, two USART modules, an SSP/SPI/I2C peripheral, a capture/compare/PWM module, 2x analog comparators, and the integrated CAN 2.0B controller with three transmit and two receive mailboxes. The 40 MHz oscillator drives an internal 4-cycle PLL-equivalent pipeline that delivers 10 MIPS, with 16-bit-wide instructions and a hardware multiplier. The PIC18LF258T core is built around an enhanced Harvard architecture with a 16-bit instruction word and an 8-bit data path. It separates program and data buses so that instruction fetches do not stall on data accesses, and the CAN controller is mapped into the SFR space at addresses 0xF40-0xF6F, sharing DMA-friendly mailbox RAM with general-purpose SRAM. Brown-out Reset and an internal LDO allow direct battery connection without external regulation. Typical applications include industrial CAN nodes (sensor clusters, HVAC dampers, factory machine controllers), single-phase induction motor control using the integrated kernel, automotive body controllers, embedded data loggers, and CAN-to-UART bridges. The wide 2.0-5.5 V range suits solar charge controllers and battery packs, while the CAN bus adds robustness in electrically noisy factories. When designing with this device, allocate pins RB0/RB1 for the CAN transceiver interface (TX/RX) and add a TJA1050 or MCP2551 CAN driver between the MCU and the bus. Decouple VDD with a 100 nF + 10 uF pair within 5 mm of the package, and use ICD 3 or PICkit 4 over the ICSP header (RB6/RB7) for firmware updates in the field. This page synthesizes distributor pricing, drop-in 28-SOIC alternatives, and practical design notes not found in the manufacturer datasheet alone, so you can decide in one read whether the PIC18LF258T-I/SO fits your CAN-enabled 28-SOIC bill of materials.

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