Circuitos Integrados

PIC18F4682-I/P

PIC18F4682-I/P - 8-bit MCU, 80KB Flash, ECAN, 40-PDIP

The Microchip Technology PIC18F4682-I/P is an 8-bit PIC18 microcontroller with 80KB of Flash program memory, 3.3KB of RAM, and 1KB of EEPROM, operating at up to 40 MHz in a 40-pin PDIP (P) package. It features an integrated ECAN (Enhanced Controller Area Network) module, a 10-bit ADC with up to 11 input channels, and nanoWatt technology for low-power operation. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and peripherals around an 8-bit data path, optimized for deterministic real-time control. PIC18 microcontrollers are part of Microchip's high-performance 8-bit family, sitting in the broader taxonomy: microcontroller -> embedded processor -> semiconductor. They excel in automotive, industrial, and consumer applications where reliability, low power, and a robust peripheral set are required. Key features of the PIC18F4682 include 40 MHz operation delivering up to 10 MIPS, hardware ECAN 2.0B with full CAN 2.0A/B compliance, a 10-bit ADC with up to 11 channels, two USART modules for serial communication, an SPI and I2C interface, and nanoWatt power management with idle, sleep, and run modes. The device operates across the industrial temperature range of -40°C to +85°C, supports in-circuit serial programming (ICSP) and in-circuit debugging (ICD), and includes a brown-out reset (BOR) and watchdog timer for enhanced system reliability. The PIC18F4682 uses an enhanced Harvard RISC architecture with separate program and data buses, a 16-bit instruction word, and 31-level hardware stack for fast context switching. The integrated ECAN module reduces software overhead by handling bus arbitration, filtering, and error handling in hardware, enabling deterministic communication on industrial and automotive CAN buses. This makes the PIC18F4682 well suited to networked embedded systems requiring reliable real-time messaging. Typical applications include automotive body and chassis ECAN nodes, industrial CAN-based sensor networks, building automation, HVAC controls, motor control, and embedded data acquisition. The wide temperature range and ECAN hardware make it especially attractive for automotive and industrial environments where standard serial protocols are insufficient. When designing with the PIC18F4682, allocate sufficient decoupling (100 nF + 10 µF) near the VDD pins, and observe the 40 MHz maximum clock with proper crystal load capacitor selection. For ECAN networks, terminate the bus with 120 Ω resistors at each end and configure the ECAN bit-timing registers to match the required baud rate. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC18F4682-I/PT

PIC18F4682-I/PT - 8-bit 40MHz 80KB Flash MCU w/ CAN | Microchip

The Microchip Technology PIC18F4682-I/PT is an 8-bit PIC18 microcontroller running at 40 MHz with 80 KB of Flash program memory and 3,328 bytes of RAM in a 44-pin TQFP (10x10 mm) package. The part integrates an ECAN 2.0B controller, multiple UART/SPI/I2C peripherals, a 10-bit ADC, and nanoWatt power management in the PIC18F46x2 enhanced flash family. An 8-bit microcontroller (MCU) is a single-chip computer with an 8-bit data path that integrates a CPU, Flash/ROM program memory, SRAM data memory, and configurable peripherals on one die. 8-bit MCUs sit below 16-bit/32-bit MCUs and digital signal controllers in the embedded hierarchy, but above discrete logic in integration; they are dominant in cost-sensitive, deterministic, low-power control tasks such as CAN-node industrial sensing and appliance control. The PIC18F4682 specifically targets nodes that require on-chip CAN connectivity without an external transceiver control ASIC. Key differentiating features include the 80 KB Flash (40K x 16) memory, 3,328 bytes of RAM, 1,024 bytes of EEPROM, a 10-bit A/D converter with up to 11 channels, and an Enhanced CAN (ECAN) module that meets the CAN 2.0B active specification with acceptance filters. The device operates from 4.2 V to 5.5 V across the industrial -40C to +85C temperature range, supports in-circuit serial programming (ICSP) via two pins, and offers four power-managed operating modes for nanoWatt low-power designs. The ECAN module is the chief differentiator versus the CAN-less PIC18F4620 in the same package. Architecturally, the PIC18F4682 uses a Harvard RISC core with a 16-bit instruction word and an 8-bit data path, delivering up to 10 MIPS at 40 MHz. The Enhanced CAN module offloads bit timing, acceptance filtering, and message buffering from the core, allowing deterministic real-time CAN traffic without software polling. The instruction set includes a hardware 8x8 multiply and a 16-bit barrel shifter, supporting fast DSP-style arithmetic without a separate DSC. Typical applications include industrial CAN-bus sensor nodes, automotive body and chassis sub-bus controllers (non-safety-critical), HVAC control boards, building-automation nodes, and embedded data-acquisition front ends. The combination of ECAN, 10-bit ADC, and ample Flash suits designs that stream digitized sensor data onto a CAN network. The 44-pin TQFP is large enough to expose full peripheral sets on most pins while keeping the board area moderate. A key design trade-off is that this part is an older 5 V-only device without USB or the modern CRC/scanning peripherals found on newer PIC18 K-series parts. For new designs, evaluate the PIC18F45K80 (same 40 MHz, same TQFP, with ECAN) unless 5 V tolerance is mandatory. When designing with this MCU, ensure proper decoupling on VDD/VSS pairs and configure the CAN I/O to the bus voltage expected by the external transceiver.

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PIC18F4682T-I/PT

PIC18F4682T-I/PT - 8-bit MCU, 80KB Flash, 40MHz, TQFP-44 | Microchip

The Microchip Technology PIC18F4682T-I/PT is an 8-bit PIC18 RISC microcontroller featuring 80 KB of Flash program memory, 3,328 bytes of RAM, and 1 KB of data EEPROM, housed in a 44-pin TQFP (PT) package. It operates at up to 40 MHz, accepts a supply voltage of 4.2 V to 5.5 V, and provides 36 digital I/O pins, making it suitable for embedded control in industrial and automotive body/comfort applications. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), working memory (RAM), non-volatile storage (EEPROM), and programmable peripherals into one IC. PIC18 MCUs belong to the 8-bit enhanced family of Microchip's PIC architecture, which adds 16-bit program word width, hardware multiplier, linear SRAM addressing, and priority-interrupt support. Within the system hierarchy, an MCU sits below an MPU (microprocessor) and above a digital signal controller (DSC); it executes firmware directly from on-chip Flash, eliminating external memory in most designs. Key features include a 10-bit ADC with up to 11 channels, a CAN 2.0B controller, an Enhanced USART with LIN support, two MSSP (SPI/I2C) ports, and nanoWatt power management for low-power sleep modes. The device supports in-circuit serial programming (ICSP) and in-circuit debugging (ICD) via two pins, enabling field-upgradeable firmware. Enhanced Flash cells support 100K erase/write cycles typical and >40 years of data retention, providing long-term reliability. Architecturally, the PIC18F4682 uses a Harvard bus with separate program and data paths, a 16-bit instruction word, and a C-optimized instruction set that simplifies compiler code generation. The integrated CAN module makes the device a strong fit for automotive and industrial networks requiring deterministic message handling. nanoWatt technology offers dynamic switching between run, idle, and sleep modes to optimize energy use in battery-backed designs. Typical applications include CAN node endpoints in vehicle body modules, sensor signal acquisition systems, industrial process control nodes, and LIN master/slave nodes. The wide 4.2 V–5.5 V input range and integrated CAN simplify designs for 12 V automotive battery systems. For migrating code, the PIC18F4685 offers more memory in the same package family. Designers should confirm the JTAG/ICSP pinout against the target board and choose the PIC18F4682-I/PT (tube) versus PIC18F4682T-I/PT (tape-and-reel) only when changing production packaging. Provide a 100 nF decoupling capacitor adjacent to each VDD/VSS pair and follow Microchip AN869 for EMC compliance.

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PIC18F4685-E/P

PIC18F4685-E/P - 8-bit 40MHz MCU 96KB Flash w/ECAN | Microchip

The Microchip Technology PIC18F4685-E/P is an 8-bit PIC18 microcontroller with 96KB of Flash program memory, 3.25KB of RAM, and an integrated Enhanced CAN (ECAN) module, operating at up to 40MHz in a 40-pin PDIP (through-hole) package. The -E suffix indicates an extended operating temperature range of -40C to +125C, making this part suitable for industrial and harsh-environment applications. Key features include 36 digital I/O pins, 1KB of EEPROM, an integrated 10-bit ADC with multiple channels, and the enhanced ECAN controller that brings automotive-grade CAN 2.0B networking to cost-sensitive embedded designs. The wide 4.2V to 5.5V operating voltage range aligns with legacy 5V system buses, easing integration with analog front-ends and older peripherals that have not migrated to 3.3V logic. The PIC18F4685 uses Microchip's enhanced Harvard RISC architecture with 16-bit instructions and 8-bit data, delivering approximately 10 MIPS at 40MHz. The ECAN module supports both standard and extended identifiers, multiple transmit/receive buffers, and filtering masks that reduce host CPU load. On-chip peripherals include USART, MSSP (SPI/I2C), PWM, capture/compare, and an 8-bit parallel port, providing enough flexibility for industrial control nodes without external expansion chips. Typical applications include industrial CAN nodes, automotive body and chassis ECUs, building automation gateways, sensor data loggers, and HVAC controllers. The large 96KB flash accommodates full CANopen or DeviceNet stacks plus application firmware, and the -E temperature grade allows deployment in unconditioned enclosures. When designing with this part, allocate adequate decoupling on VDD/AVDD pairs and follow Microchip's AN1245 layout guidelines for ECAN signal integrity. The 40-pin PDIP footprint is breadboard-friendly for prototyping, simplifying firmware bring-up before committing to a TQFP/MLF surface-mount variant.

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PIC18F4685-E/PT

PIC18F4685-E/PT - 40MHz 8-bit MCU 96KB Flash 44-TQFP | Microchip

The Microchip Technology PIC18F4685-E/PT is a high-performance 8-bit PIC microcontroller delivering up to 40 MHz instruction-clock throughput (10 MIPS), featuring 96 KB of Flash program memory, 3.3 KB RAM, and an integrated Enhanced CAN (ECAN) module, housed in a 44-pin TQFP (10x10 mm) package. It operates from a 4.2 V to 5.5 V supply, provides 36 digital I/O lines, and carries the 'E' suffix denoting the extended -40C to +125C operating temperature grade, while the /PT suffix marks the 44-pin TQFP package option. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, ALU, on-chip program and data memory, and configurable peripheral blocks. The PIC18F family specifically uses Microchip's enhanced Harvard RISC architecture that separates program and data buses, achieving one instruction per clock cycle for deterministic real-time response. PIC18F parts sit in Microchip's mid-range portfolio - above baseline PIC10/12/16 parts but below dsPIC and 32-bit families - making them workhorses for industrial control, automotive networking (LIN/CAN), and consumer appliances. Key features of the PIC18F4685-E/PT include an integrated ECAN (CAN 2.0B active) module for industrial and automotive networking, a 10-bit ADC with up to 11 channels, three timers, two capture/compare/PWM modules, and nanoWatt power management that brings quiescent current into the microamp range. Self-programmability under software control supports field firmware updates, while the ICSP/ICD interface enables in-circuit debugging with MPLAB PICkit or ICD 4 tools. Architecturally, the device pairs a 1024-byte EEPROM for non-volatile parameter storage with 3328-byte SRAM for stack and scratch data. The ECAN engine supports CAN 2.0B active with full filtering, useful in vehicle body electronics and industrial sensor buses. The 40 MHz oscillator delivers up to 10 MIPS throughput for demanding control loops, while nanoWatt technology provides multiple idle, sleep, and run modes. Typical applications include CAN-based distributed industrial automation nodes, automotive body and chassis ECUs, sensor aggregation modules, motor control boards, and appliance control panels. The -40C to +125C grade specifically targets automotive under-hood and outdoor industrial installations. When designing with this part, ensure the 44-pin TQFP land pattern matches the 10x10 mm body, allocate adequate VDD/VSS decoupling close to each pin pair, and route the CANH/CANL differential pair with 120 ohm characteristic impedance and proper termination. This page synthesizes distributor pricing, drop-in same-package alternatives drawn from the Microchip PIC18F46xx family, and practical design notes that the manufacturer datasheet alone does not present.

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PIC18F4685-I/ML

PIC18F4685-I/ML - 96KB Flash 8-bit MCU w/ECAN, 44-QFN | Microchip

The Microchip Technology PIC18F4685-I/ML is an 8-bit PIC microcontroller with 96 KB of enhanced Flash program memory, 3328 bytes of RAM, and an integrated ECAN (Enhanced Controller Area Network) module, housed in a 44-pin QFN package with exposed pad. The device operates from 2.0 V to 5.5 V, supports a 40 MHz maximum CPU clock (10 MIPS), and integrates a 10-bit A/D converter with up to 11 input channels, making it well-suited for mixed-signal embedded designs. Key features include 1 KB of EEPROM data memory, nanoWatt Technology power management with multiple idle and sleep modes, an enhanced USART, MSSP (SPI/I2C) peripheral, two CCP/ECCP modules for PWM and capture/compare, and a 16-bit timer/counter. The integrated ECAN controller is compliant with CAN 2.0B active specification and supports both standard and extended identifiers with maskable filters, allowing reliable in-vehicle networking at bit rates up to 1 Mbit/s. The device is part of the PIC18F4685 family which includes the PIC18F2682/2685/4682/4685 variants in 28/40/44-pin packages. The architecture uses an 8-bit data path with a 16-bit instruction word and a modified Harvard bus, providing linear memory addressing for both program and data. The enhanced Flash supports self-programming under software control, enabling in-field firmware updates and bootloader-style workflows. Hardware stack and interrupt controller support priority-based context handling, with up to 20 interrupt sources and two priority levels, making this device suitable for real-time control tasks. Typical applications include automotive body and chassis ECUs (CAN nodes for body control, HVAC, instrument clusters), industrial CAN-based sensor networks, motor control loops where ECCP PWM drives half-bridges, sensor conditioning with on-chip 10-bit ADC, and consumer appliances requiring robust wired networking. The wide operating temperature range (-40C to +85C for the -I industrial grade) plus ECAN and nanoWatt features align it with both automotive passenger-compartment and industrial control deployments. Designers should use MPLAB X IDE with the MPLAB XC8 compiler for firmware development and the PICkit 5 in-circuit debugger for programming and debugging. The QFN-44 package requires careful PCB layout with thermal vias under the exposed pad to manage the 5 V/40 MHz power dissipation envelope. The 96 KB Flash also enables large lookup-table and bootloader strategies that smaller PIC18 devices cannot host. This page synthesizes distributor pricing, drop-in Microchip alternative MPNs, and practical design considerations not found in the manufacturer datasheet alone, including parametric proximity analysis versus PIC18F4682 and PIC18F4585 variants within the same 44-pin QFN footprint.

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PIC18F4685-I/P

PIC18F4685-I/P - 8-bit MCU 96KB Flash ECAN 40-PDIP | Microchip

The Microchip PIC18F4685-I/P is an 8-bit enhanced flash microcontroller with ECAN™ technology, 10-bit A/D converter, and nanoWatt power management, housed in a 40-pin PDIP (Plastic DIP) through-hole package. It integrates 96 KB (48K × 16) of Flash program memory, 3,328 bytes of SRAM, and 1 KB of EEPROM, and operates from 2.0 V to 5.5 V at clock speeds up to 40 MHz delivering up to 10 MIPS. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O. The PIC18F family represents Microchip's high-performance 8-bit architecture with a 16-bit instruction word and 8-bit data path, optimized for deterministic real-time control. Within the MCU hierarchy, the PIC18F4685 sits in the ECAN-equipped automotive/industrial subgroup, adding Controller Area Network 2.0B hardware acceleration critical for in-vehicle networking, factory automation, and distributed sensor systems. Key features include an integrated ECAN module supporting CAN 2.0B active with eight acceptance filters and three acceptance masks, an 11-channel 10-bit ADC with up to 100 ksps conversion, multiple PWM and Capture/Compare modules, and nanoWatt power-saving modes that drop quiescent current below 100 nA in sleep. Up to 36 digital I/O pins are available with interrupt-on-change capability on several ports. The PIC18F4685 architecture uses a RISC-like instruction set with hardware multiply, an 8 × 8 single-cycle multiplier, and a 31-level hardware stack. The 40 MHz oscillator yields a 100 ns instruction cycle, making the device well-suited to time-critical control loops. On-chip in-circuit debug (ICD) and self-programmability support field upgrades via the standard 2-wire ICSP interface. Typical applications include automotive body and powertrain ECUs, industrial CAN nodes, building automation gateways, HVAC fan/blower controllers, sensor hubs with local decision-making, and embedded control boards where a robust 8-bit core plus CAN bus simplifies system partitioning. The wide operating temperature range of -40 °C to +85 °C covers industrial and automotive interiors. When designing with the PIC18F4685-I/P, choose the PDIP package only when through-hole assembly, easy breadboarding, or hand-prototyping is required - otherwise select the TQFP-44 (PT), QFN-44 (ML), or SOIC-40 (SP) variants for SMD production. Ensure the CAN bus is terminated with 120 Ω at each end and that the ECAN baud rate prescaler matches the oscillator frequency. This page synthesizes distributor pricing, drop-in same-package alternatives, ICSP debug notes, and application-specific guidance not present in the bare Microchip datasheet.

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PIC18F4685-I/PT

PIC18F4685-I/PT - 8-bit 40MHz 96KB Flash MCU w/ ECAN | Microchip

The Microchip Technology PIC18F4685-I/PT is an 8-bit PIC18 microcontroller with 96KB (48K x 16) of Flash program memory, a 40 MHz maximum CPU clock speed, and an integrated ECAN (Enhanced Controller Area Network) peripheral, housed in a 44-pin TQFP (10x10 mm) package. An 8-bit microcontroller is a CPU whose internal datapath and arithmetic logic unit process eight bits per clock; it is widely used in cost-sensitive and deterministic embedded designs. PIC18 fuses 8-bit legacy code compatibility with enhanced 16-bit-wide instruction words, enabling C-compiler-friendly code density while keeping peripheral integration high. PIC18F4685 sits inside the PIC18F family, which is Microchip's mid-range 8-bit MCU line used across automotive, industrial, and consumer embedded designs. The category hierarchy is: PIC18F4685 -> PIC18 microcontroller -> 8-bit MCU -> microcontroller -> embedded IC. Key features include 3328 bytes of RAM, 1024 bytes of EEPROM, 36 digital I/O lines, an 11-channel 10-bit ADC, and nanoWatt Technology for ultra-low-power idle, sleep, and deep-sleep modes. The device operates from 4.2V to 5.5V across the industrial -40C to +85C temperature range. Serial interfaces include ECAN, I2C/SPI (MSSP), and an enhanced USART; two CCP/ECCP modules provide PWM and capture/compare. The TQFP-44 footprint is the standard 10x10 mm body with 0.8 mm pitch. The PIC18F4685 uses a Harvard RISC architecture with a hardware 8x8 multiplier, achieving 10 MIPS at 40 MHz. Its ECAN module is CAN 2.0B active compliant, supporting both standard and extended identifiers, filters, and masks for in-vehicle body and powertrain networks. nanoWatt Technology drops idle current into the microamp range, extending battery life in portable sensor nodes. The device supports in-circuit serial programming (ICSP) and in-circuit debugging through ICD. Typical applications include automotive ECAN body and chassis networks, industrial CAN-bus sensor nodes, HVAC control systems, motor-control interfaces, building automation nodes, and embedded sensor hubs requiring 10-bit analog digitization and moderate on-chip storage. When designing with this device, note that VDD/AVDD must be decoupled with at least 0.1 uF ceramic capacitors placed within 5 mm of each power pin. The ECAN transceiver must be a separate external chip such as the MCP2551 or MCP2561; the PIC18F4685 contains only the protocol layer, not the physical layer. This page synthesizes distributor pricing, parametric data, and drop-in alternatives drawn from Microchip product family datasheets and XAIPART's curated engineering database.

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PIC18F4685T-I/PT

PIC18F4685T-I/PT - 8-Bit MCU, 96KB Flash, ECAN, 44-TQFP | Microchip

The Microchip Technology PIC18F4685T-I/PT is a high-performance 8-bit PIC microcontroller in the PIC18F family, featuring 96 KB (48K x 16) of enhanced Flash program memory, 3.25 KB RAM, and 1 KB EEPROM, all integrated into a 44-pin TQFP (10x10 mm) package. It operates at up to 40 MHz (10 MIPS) from a 4.2 V to 5.5 V supply and includes an integrated Enhanced CAN (ECAN) module for industrial and automotive networking. A microcontroller (MCU) is a single-chip computer that contains a processor core, program memory, data memory, and peripherals. The PIC18F4685 belongs to the PIC18F enhanced family, which sits in the broader 8-bit PIC hierarchy (PIC10/12/16/18) and ultimately under the embedded controller branch of semiconductor products. The PIC18F4685T-I/PT adds Enhanced CAN, 10-bit ADC with up to 11 channels, nanoWatt power management, and a 16-bit capture/compare/PWM module, making it well suited to mid-range embedded control. Key features of the PIC18F4685T-I/PT include 36 digital I/O pins, 10-bit ADC with 11 input channels, two Enhanced USART modules, MSSP (SPI/I2C), two Enhanced Capture/Compare/PWM (ECCP) peripherals, 10 MIPS throughput at 40 MHz, and nanoWatt power-saving modes. The ECAN module supports CAN 2.0B active with multiple receive/transmit buffers. Self-programmability under software control, Flash program memory with 100K erase/write cycles typical, and a 10-year data retention rating simplify in-field firmware updates. Architecturally, the PIC18F4685 uses a Harvard RISC core with a modified instruction set that retains compatibility with earlier PIC16 code while adding 16-bit instructions, indexed addressing, and a linear data memory space up to 4 KB. The on-chip ECAN peripheral implements the CAN 2.0B protocol in hardware, offloading bit timing, acceptance filtering, and message buffering from the CPU and enabling real-time deterministic networking at 1 Mbit/s. Typical applications include industrial automation with CAN-bus networking, automotive body and powertrain ECUs, building automation, HVAC controllers, medical instrumentation with CAN connectivity, sensor aggregation nodes, and CAN-to-UART/SPI bridges. The wide -40 C to +85 C industrial temperature range and nanoWatt sleep modes support always-on battery-powered designs. When designing with this part, observe Microchip's recommended decoupling: 0.1 F ceramic on each VDD pin and bulk capacitance near the IC. The ECAN bus requires a CAN transceiver such as the MCP2551 and proper 120-ohm termination. For firmware development, use MPLAB X IDE with the XC8 compiler and the PICkit 5 or ICD 4 in-circuit debugger. This page synthesizes distributor pricing, drop-in alternatives drawn from Microchip's PIC18F family, and practical design notes not found in the manufacturer datasheet alone, giving engineers a single reference for selecting, sourcing, and validating the PIC18F4685T-I/PT for new designs or legacy migrations.

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PIC18F46J11-I/ML

PIC18F46J11-I/ML - 8-bit 64KB Flash MCU, 44-QFN | Microchip

The Microchip PIC18F46J11-I/ML is an 8-bit PIC microcontroller from the PIC18 J-series featuring 64KB of Flash program memory, 4KB of RAM, and 12 MIPS throughput, housed in a 44-pin QFN package with exposed pad. It operates from 2.0V to 3.6V (PIC18F46J11 family supports 4.2V to 5.5V on 5V-tolerant variants per datasheet 39932D), integrates a 12-bit A/D converter with up to 13 channels, and supports peripherals including USB 2.0 full-speed, two comparators, four timers, two capture/compare/PWM modules, and the Peripheral Pin Select (PPS) feature. A PIC18 microcontroller is an 8-bit Harvard-architecture RISC MCU family from Microchip Technology, designed for embedded control applications requiring deterministic real-time performance and rich peripheral integration. The PIC18 J-series specifically targets low-power and high-performance designs, combining the nanoWatt XLP power-management technology with enhanced flash and PPS routing flexibility. Within the broader taxonomy, the PIC18 sits under 8-bit microcontroller -> microcontroller -> embedded IC -> semiconductor, and competes with other low-power MCUs such as the STM8 (STMicroelectronics) and ATmega (Microchip/Atmel) families. Key differentiating features of the PIC18F46J11 include 64KB (32K x 16) self-programmable Flash with 10,000 erase/write cycles endurance, 256 bytes of EEPROM, 4KB RAM, deep-sleep current under 100 nA for battery-backed applications, and Peripheral Pin Select that allows digital peripheral I/O remapping without PCB rework. The 44-QFN (8x8) package with exposed thermal pad provides low thermal resistance and a compact 8 mm x 8 mm footprint suitable for space-constrained designs. Architecturally, the PIC18F46J11 uses a 16-bit instruction word with 8-bit data, an 8-level hardware stack, a 31-level software stack via WREG/BSR paging, and a unified interrupt vector system. The 12-bit A/D converter supports up to 13 analog input channels with acquisition time programmable down to 0.5 µs, enabling mixed-signal feedback loops in motor control and sensor conditioning. Typical applications include USB peripherals and HID devices (using the integrated USB 2.0 FS transceiver), low-power sensor nodes with battery operation, industrial control panels using the enhanced PWM modules, home appliance user interfaces, and cost-sensitive consumer electronics. Pin compatibility with the PIC18F4620, PIC18F4520, and PIC18F45J10 families enables drop-in upgrades along different price/feature points within Microchip's PIC18 portfolio. When designing with this device, ensure that the exposed thermal pad is soldered to a sufficiently large copper pour for thermal and electrical grounding. The PPS feature must be configured early in initialization before any peripheral digital I/O is used, or pins default to their reset state. Programming voltage Vpp is internally generated, eliminating the need for an external 13V supply on most production programmers. This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design notes that are not found in the manufacturer datasheet alone.

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PIC18F46J11T-I/ML

PIC18F46J11T-I/ML - 8-Bit 48MHz MCU 64KB Flash 44-QFN | Microchip

The Microchip Technology PIC18F46J11T-I/ML is an 8-bit PIC18 J-series microcontroller featuring a 48 MHz internal oscillator, 64 KB Flash program memory, 4 KB RAM, and Peripheral Pin Select (PPS) in a 44-pin QFN (8x8 mm) package with nanoWatt XLP extreme low-power technology. The 'T' suffix indicates Tape & Reel packaging, 'I' denotes the -40C to +85C industrial temperature grade, and 'ML' is the package designator for the 44-lead QFN. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, optimized for deterministic real-time control and low-power embedded applications. PIC18 J-series MCUs extend Microchip's enhanced 8-bit architecture with up to 12 MIPS throughput, integrated nanoWatt XLP power management, and Peripheral Pin Select that allows flexible remapping of digital peripherals to any I/O pin. The PIC18F46J11 specifically targets cost-sensitive applications requiring USB, CAN, or graphics connectivity at very low active and sleep currents. Key features include 64 KB (32K x 16) self-programmable Flash with 1 KB EEPROM emulation, 12-bit A/D converter with up to 13 input channels, two analog comparators with rail-to-rail inputs, two Enhanced USART modules supporting RS-232/RS-485 and LIN, two MSSP ports for SPI and I2C (master/slave), and a dedicated Full-Speed USB 2.0 transceiver. The PPS system allows digital peripherals to be mapped to a wide range of pin functions, simplifying PCB layout. Deep Sleep mode reduces current draw to less than 100 nA typical while maintaining RTCC and wake-on-change functionality. The PIC18F46J11 architecture is built on an enhanced Harvard RISC core with a hardware multiplier, 16-bit instructions, and 8-bit data path. A modified Harvard memory map separates program Flash (up to 64 KB) from data RAM (4 KB) and configures up to 1 KB of EEPROM emulation in Flash. Internal RC oscillator options up to 48 MHz with PLL eliminate external crystals in many designs, while four 16-bit timers and an Enhanced Capture/Compare/PWM module support motor-control and waveform-generation tasks. Typical applications include USB peripherals such as HID-class devices and CDC serial adapters, CAN-node industrial sensors, low-power battery sensor nodes with sleep currents under 100 nA, graphical LCD drivers, and consumer appliances requiring LIN bus connectivity. The wide operating voltage range of 2.0V to 3.6V supports both single-cell Li-ion and 3.3V regulated rails. When designing with this MCU, ensure the VDDCORE pin is bypassed with a 10 uF bulk capacitor and that the ENVREG pin is tied high for internal voltage regulator operation. Decouple each VDD/VSS pair with 100 nF ceramic capacitors placed within 3 mm of the pins. For USB applications, the internal 3.3V regulator must be enabled and a 200-ohm series resistor used on the D+/D- lines.

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PIC18F46J11T-I/PT

PIC18F46J11T-I/PT - 64KB Flash 8-bit MCU TQFP-44 | Microchip

The Microchip Technology PIC18F46J11T-I/PT is a low-power, high-performance 8-bit PIC18 J-series microcontroller built around an enhanced RISC architecture with 64KB of Flash program memory, 4KB of RAM, and an integrated 12-bit A/D converter. Housed in a 44-pin TQFP (10x10 mm) package, it operates from a 2.0V to 3.6V core Vdd supply with 4.2V to 5.5V tolerant I/O, delivering up to 48 MHz (12 MIPS) processing throughput. The "T" suffix denotes Tape & Reel packaging and "I/PT" indicates the industrial temperature grade (-40C to +85C) on the TQFP-44 land pattern. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (Flash/ROM), data memory (RAM), and peripherals on one die. Within the MCU taxonomy, the PIC18F46J11 belongs to the 8-bit PIC family, sits below the 16-bit dsPIC and PIC24 families, and above 4-bit legacy controllers; it is categorized as a general-purpose, low-power (nanoWatt XLP) embedded controller targeting cost-sensitive consumer and industrial designs. Key features include Peripheral Pin Select (PPS) for flexible signal routing, a Charge Time Measurement Unit (CTMU) for capacitive touch and precise time measurement, two MSSP (SPI/I2C) ports, two USART modules, a 12-bit A/D with up to 13 channels, deep-sleep current in the nanoampere range, and an internal 31 kHz to 8 MHz oscillator with PLL. The 44-pin TQFP exposes up to 36 digital I/O lines plus dedicated analog and timer pins, giving designers generous headroom for mixed-signal designs. Architecturally, the PIC18F46J11 uses a Harvard-style RISC core with a single-cycle 16-bit instruction word, 8-bit data path, hardware multiply, and a 16-level hardware stack. Its nanoWatt XLP technology enables deep-sleep currents below 1 uA with RTC retention, making it suitable for battery-powered endpoints where energy harvesting or coin-cell operation is required. PPS allows remapping of digital peripherals onto most I/O pins post-reset, simplifying PCB routing and BOM changes late in the design cycle. Typical applications include USB/HID human-interface devices, capacitive-touch user panels, low-cost graphic LCD controllers, sensor-hub aggregation nodes, white-goods motor control, and industrial CAN-LIN gateway bridge nodes. It is also widely used as a connectivity companion (I2C/SPI slave) to higher-end MCUs in IoT appliances, and as a general-purpose platform in university embedded courses due to its free MPLAB X IDE toolchain. When designing with the PIC18F46J11, observe the dual-rail requirement: VBAT/Vddcore from 2.0V to 3.6V plus a separate I/O rail. Decouple both rails with 100 nF plus bulk capacitance placed within 5 mm of each supply pin, and respect the analog/digital Vss split to keep ADC SNR within datasheet limits. This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not collected in a single place on the manufacturer datasheet.

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PIC18F46J13-I/ML

PIC18F46J13-I/ML - 8-bit 48MHz 64KB Flash MCU | Microchip

The Microchip PIC18F46J13-I/ML is a low-power, high-performance 8-bit PIC microcontroller in the PIC18 J-series, featuring 64KB of Flash program memory, 48MHz CPU speed, and a 44-pin QFN (ML) 8x8mm package with exposed thermal pad. It belongs to Microchip's XLP (eXtreme Low Power) family and integrates 12-bit A/D conversion, nanoWatt technology, and a deep-sleep mode that extends battery life in power-constrained applications. An 8-bit microcontroller (MCU) is a small, self-contained computer-on-a-chip that integrates a CPU, memory (Flash/RAM), and peripherals on a single die. Within the broader semiconductor taxonomy, an MCU is a subset of microprocessors and belongs to the embedded computing category, commonly used in consumer, industrial, automotive, and IoT products where deterministic real-time control is required. The PIC18F46J13 is part of Microchip's enhanced Flash microcontroller family targeting cost-sensitive applications that still require substantial code space and analog integration. Key features include 64KB (32K x 16) of self-programmable Flash, 3.72KB of RAM, 36 digital I/O pins, two 12-bit A/D converters with up to 13 input channels, multiple PWM outputs, and serial interfaces including I2C, SPI, and enhanced USART. The device operates from 2.0V to 3.6V, includes a 4x phase-locked loop (PLL) for the 48MHz system clock, and supports in-circuit debugging via ICD. The PIC18F46J13 utilizes a Harvard architecture with separate code and data buses, an 8-bit ALU, and a RISC-style instruction set with 77 instructions. The device supports priority levels for interrupts and a vectored interrupt controller that allows for deterministic response times, which is essential in real-time control applications such as motor drives and sensor fusion. Typical applications include low-power sensor nodes, USB/HID peripherals, capacitive touch interfaces, industrial control panels, white goods (washing machines, dishwashers), and battery-powered handheld instruments where deep-sleep current in the nanoampere range enables years of standby operation. The wide peripheral set and 64KB code space also support small graphical user interfaces on segment LCDs. When designing with this part, verify that your power supply rail is within the 2.0V-3.6V range; the J-series variants operate strictly from 2.0V to 3.6V (not 5V tolerant). The exposed pad on the QFN package must be soldered to the PCB ground plane to meet thermal and electrical performance specifications. This page synthesizes Microchip datasheet specifications, distributor stock and pricing data, cross-family drop-in alternatives, and practical design notes that supplement - but do not replace - the official datasheet from Microchip Technology.

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PIC18F46J13T-I/ML

PIC18F46J13T-I/ML - 64KB Flash 8-bit MCU 48MHz 44-QFN | Microchip

The Microchip Technology PIC18F46J13T-I/ML is a low-power, high-performance 8-bit PIC18J-series microcontroller with 64KB (32K x 16) of FLASH program memory, 3.8KB (3.8K x 8) of RAM, and 34 digital I/O pins, housed in a 44-pin QFN (8x8 mm) exposed-pad package. It runs at up to 48MHz (12 MIPS) with an internal oscillator, integrates a 12-bit ADC with up to 13 input channels, and is built on Microchip's eXtreme Low Power (XLP) technology platform. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O. The PIC18 family uses a RISC-based 8-bit Harvard architecture with separate program and data buses, and the 'J' sub-family (PIC18J) specifically targets high-memory-density, low-pin-count, low-voltage applications. The PIC18F46J13 belongs to the broader PIC18 family -> 8-bit MCU -> microcontroller -> embedded computing hierarchy, sharing architectural compatibility with PIC18F2x/4x/5x J-series devices. Key features include deep-sleep current in the nanoamp range, multiple low-power modes (idle, doze, sleep, deep sleep), a 10-bit or 12-bit ADC with auto-acquisition, three 16-bit timers, two comparators, hardware RTCC, and a charge time measurement unit (CTMU) for capacitive touch sensing. It supports I2C, SPI, and UART/EUSART serial interfaces for communication with external peripherals and sensors. The PIC18J-series operates from 2.0V to 3.6V core Vdd (with 5V-tolerant I/O), making it suitable for battery-powered designs. Typical applications include low-cost graphical LCD interfaces, real-time control with capacitive touch, USB device/host/OTG peripherals (on USB-equipped J-series siblings), industrial control panels, sensor hubs, and consumer electronics requiring long battery life. The 64KB flash and 3.8KB RAM comfortably host protocol stacks and small RTOS kernels while leaving headroom for application code. When designing with the PIC18F46J13T-I/ML, observe that the 44-QFN exposed pad must be soldered to the ground plane for thermal dissipation and electrical performance. Configure the internal PLL for 48MHz operation, and select the deep-sleep mode for battery-critical standby. The T-suffix part suffix denotes tape-and-reel packaging. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical PCB/design notes not consolidated in any single manufacturer datasheet.

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PIC18F46J13T-I/PT

PIC18F46J13T-I/PT - 8-bit 48MHz 64KB Flash MCU TQFP-44 | Microchip

The Microchip Technology PIC18F46J13T-I/PT is an 8-bit RISC PIC18J-series microcontroller with 64KB Flash, 4KB RAM, and a 48MHz internal oscillator, packaged in a 44-pin TQFP (10x10 mm). It operates from 2.0V to 3.6V, includes nanoWatt XLP ultra-low-power technology, an integrated 12-bit A/D converter, and 36 digital I/O pins. The 'T' suffix denotes tape-and-reel packaging and 'I/PT' denotes the industrial -40C to +85C temperature range in the TQFP-44 package. A PIC18 microcontroller is an 8-bit Harvard-architecture MCU from Microchip's PIC18 family, which sits in the broader hierarchy of microcontroller -> embedded controller -> semiconductor IC. The PIC18J-series adds 3.3V operation, higher memory density, and richer peripherals versus older PIC18F baselines, while preserving code compatibility with PIC18 instruction set. nanoWatt XLP technology extends deep-sleep current down to the nanoampere range, making the J-series suited for battery-powered or energy-harvesting designs. Key features include 64KB self-programmable Flash, 4KB SRAM, 12-bit A/D converter with auto-acquisition, multiple serial peripherals (UART, SPI, I2C), and four timer modules. Deep-sleep mode, Sleep mode, and Idle mode combine with nanoWatt XLP to deliver battery lifetimes measured in years for typical sensor applications. The device uses a modified Harvard architecture with a 16-bit instruction word and 8-bit data path, executed by an 8-stage pipeline. The 48MHz internal oscillator provides 12 MIPS instruction throughput, sufficient for sensor fusion, simple HMI control, and peripheral orchestration tasks. Typical applications include consumer white goods, smart thermostats, low-power sensor nodes, USB peripherals, and industrial control boards where the 64KB/4KB memory profile and rich peripherals match the application's needs without paying for an excess MCU. When designing with this MCU, ensure decoupling capacitors are placed close to VDD/VSS pins and that unused I/O are configured as outputs to minimize current draw. Brown-out reset configuration should match the operating voltage to prevent code corruption during supply droops. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC18F46J50T-I/ML

PIC18F46J50T-I/ML - 8-bit USB MCU, 64KB Flash, 44-QFN | Microchip

The Microchip Technology PIC18F46J50T-I/ML is an 8-bit PIC18J-family microcontroller with integrated full-speed USB 2.0, 64 KB of Flash program memory, 4 KB of RAM, and a 48 MHz internal oscillator (10 MIPS), housed in a 44-pin QFN (8x8 mm) package with exposed pad. It combines nanoWatt XLP extreme-low-power technology, deep-sleep current under 100 nA, and a wide 2.0V-3.6V operating range for cost-sensitive embedded designs. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and programmable peripherals. The PIC18J family specifically targets low-power and USB-enabled applications, sitting within the broader PIC18 8-bit architecture hierarchy (PIC18J -> PIC18 -> 8-bit MCU -> microcontroller -> embedded IC). nanoWatt XLP is Microchip's branded ultra-low-power technology that allows battery-powered products to operate for years on a single cell, distinguishing the PIC18F46J50 from generic 8-bit MCUs in the same price tier. Key features include a Full-Speed USB 2.0 device/host/OTG transceiver with on-chip transceiver, 10-bit ADC up to 13 channels, two analog comparators, two CCP/ECCP modules, four 8/16-bit timers, and two UART/AUSART ports. The 44-QFN package provides 36 digital I/O pins with high-current sink/source capability (25 mA per pin), enabling direct LED and relay drive without external drivers. Internal voltage regulation and deep-sleep modes further reduce power consumption in battery-backed designs. The device uses Microchip's enhanced RISC Harvard architecture with a 16-bit instruction word and 8-bit data path, achieving 10 MIPS throughput at 48 MHz FOSC. The integrated USB 2.0 full-speed PHY eliminates external transceiver components, reducing BOM cost by approximately $0.50-$1.00 per board compared to MCUs requiring external USB interfaces. The 64 KB Flash is self-programmable under firmware control, enabling bootloader-based field updates without external programmer access. Typical applications include USB peripherals (HID, CDC, mass storage), low-power IoT sensor nodes, battery-backed data loggers, consumer electronics with USB charging control, and industrial sensor interfaces. The combination of integrated USB and XLP power management makes it particularly suitable for portable USB devices that must meet strict standby current budgets. When designing with this MCU, allocate the 8x8 mm QFN thermal pad with at least 16 thermal vias to a continuous inner-plane ground pour to meet the 1.1 W dissipation rating. The USB D+/D- traces require 90 ohm differential impedance and length matching within 150 mil for Full-Speed USB compliance. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on standard product listings, providing engineering-grade reference material for BOM decisions.

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PIC18F46J50T-I/PT

PIC18F46J50T-I/PT - 48MHz USB 8-bit MCU 64KB Flash | Microchip

The Microchip Technology PIC18F46J50T-I/PT is a high-performance 8-bit microcontroller from the PIC18 J-series featuring integrated full-speed USB 2.0 peripheral support. It delivers 48 MHz CPU performance from an internal oscillator (12 MIPS instruction throughput) and integrates 64 KB of Flash program memory organized as 32K x 16 words, 4 KB of SRAM, and 1 KB of EEPROM-like data Flash. The device is housed in a 44-pin TQFP (PT) package measuring 10x10 mm and operates from a 2.0V to 3.6V supply rail. A microcontroller is a single-chip computer that integrates a CPU, RAM, non-volatile program memory (Flash), peripherals (timers, ADC, communication interfaces, I/O), and in this case a USB transceiver - all on one die. The PIC18 family uses a RISC architecture with a 16-bit instruction word and 8-bit data path, classified within the broader 8-bit MCU taxonomy that bridges to 16-bit and 32-bit devices. The PIC18F46J50 specifically belongs to the XLP (eXtreme Low Power) subfamily, targeting battery-powered and USB-connected embedded applications. Key features include nanoWatt XLP technology with a Deep Sleep mode drawing nanoamp-level current, peripheral pin select (PPS) for flexible signal routing, an integrated full-speed USB 2.0 SIE and transceiver, a 10-bit ADC with up to 13 channels, mTouch capacitive touch support via CTMU, and 36 digital I/O pins. The 48 MHz core provides 12 MIPS, and the 2.0V-3.3V supply range allows direct Li-ion/battery operation without a separate LDO. The architecture combines a Harvard-style RISC pipeline with dedicated USB hardware that handles low-level protocol without CPU intervention. This frees the core for application code, simplifies USB enumeration, and reduces firmware complexity for HID, CDC, vendor-class, and bulk-transfer endpoints. Typical applications include USB HID peripherals (keyboards, mice, custom input devices), USB-to-UART bridges, USB data loggers, industrial sensor interfaces, and battery-powered consumer electronics. The integrated USB transceiver eliminates the need for an external USB PHY and reduces both BOM cost and PCB footprint, while the XLP modes enable multi-year battery life in sleep-dominant designs. When designing with this device, careful attention must be paid to the 3.3V supply rail: a low-noise LDO is required because the internal ADC references VDD. The USB D+/D- lines require 27 to 33 ohm series termination and the DP pull-up must be enabled in firmware for full-speed enumeration.

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PIC18F46J53T-I/ML

PIC18F46J53T-I/ML - 8-bit USB MCU 64KB Flash 48MHz | Microchip

The Microchip Technology PIC18F46J53T-I/ML is a low-power, high-performance 8-bit PIC microcontroller with integrated full-speed USB 2.0, 64KB Flash program memory, 3.8KB RAM, and a 12-bit ADC, housed in a 44-pin VQFN (8x8 mm) exposed-pad package. It belongs to the PIC18 J-series and is engineered for cost-sensitive embedded designs that need USB connectivity without external PHY chips. The 48 MHz internal oscillator delivers up to 12 MIPS, supporting demanding control loops and USB Full-Speed 12 Mbps operation. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (RAM), and a rich set of peripherals (ADC, timers, communication interfaces, I/O) into one IC. Within the broader semiconductor taxonomy, MCUs sit under microcontrollers -> embedded processors -> digital ICs -> semiconductors. PIC microcontrollers use a RISC-style Harvard architecture with separate program and data buses, enabling deterministic instruction throughput and low-power operation via nanoWatt XLP technology. Key features include 34 digital I/O pins, two USART modules, two SPI/I2C, one full-speed USB 2.0 device/host/OTG transceiver, a 12-channel 10-bit ADC, deep-sleep current under 100 nA, and an internal 31 kHz to 48 MHz oscillator. The 44-pin VQFN package exposes a thermal pad that must be soldered to a ground pour to meet the 600 mA core-current rating and to maintain the -40C to +85C industrial temperature range. Typical applications include USB HID peripherals, USB-to-UART bridges, sensor hubs, home-automation controllers, and low-power IoT edge nodes. The on-chip USB transceiver eliminates an external PHY, reducing BOM cost and PCB area for cost-sensitive consumer and industrial designs. When designing, ensure the exposed pad is soldered to a continuous ground plane with multiple thermal vias to meet thermal and electrical performance. The on-chip voltage regulator requires a 10 uF decoupling capacitor on VDDCORE for stable operation across load transients. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes that complement - but do not replace - the Microchip PIC18F46J53 datasheet, providing side-by-side parametric comparison and selection guidance not consolidated elsewhere.

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PIC18F46J53T-I/PT

PIC18F46J53T-I/PT - 8-bit USB MCU 48MHz 64KB Flash | Microchip

The Microchip Technology PIC18F46J53T-I/PT is an 8-bit PIC18J-series microcontroller featuring integrated full-speed USB 2.0, 64 KB of FLASH program memory, 4 KB of RAM, and 12 MIPS performance at 48 MHz, all housed in a 44-pin TQFP (10x10 mm) package. Operating from a 2.0 V to 3.6 V core supply with 4.2 V to 5.5 V I/O, it provides 36 high-current I/O lines, a 12-bit A/D converter with up to 13 input channels, two comparators, and nanoWatt XLP power management for deep-sleep current down to the nanoampere range. The on-chip full-speed USB 2.0 transceiver supports USB device, host, and OTG roles without external PHY hardware, distinguishing this part from the broader PIC18 family. An 8-bit microcontroller (MCU) is a processor whose internal data path is 8 bits wide, executes one instruction per cycle at peak, and integrates CPU core, non-volatile program memory (FLASH/ROM), data RAM, peripherals, and I/O onto a single die. The PIC18 family sits at the upper performance tier of Microchip's 8-bit line, with RISC architecture, 16-bit opcodes, 8-bit data, hardware multiplier, and a vectored interrupt controller. It is used as the real-time control plane in cost-sensitive embedded products where the price/perf advantage of 8-bit silicon outweighs the need for 32-bit ARM-class performance. Unlike FPGA or CPLD devices, the program is stored in embedded FLASH and executed from internal RAM, enabling true single-chip system designs. The 'J' suffix in PIC18F46J53 designates the low-power, high-performance variant using Microchip's nanoWatt XLP technology with on-chip 3.3 V regulation that allows 5 V-tolerant I/O while running the core at lower internal voltage. The '46' pin-count code targets the 44-pin TQFP part. The 'T' in the part number denotes tape-and-reel packaging, and the trailing '/PT' suffix indicates a 10x10 mm TQFP package on industrial operating range (-40C to +85C). Typical applications for PIC18F46J53T-I/PT include USB peripherals such as HID-class devices, CDC serial bridges, low-cost card readers, and consumer electronic accessories; industrial control nodes running Modbus RTU over USB or RS-485; battery-powered sensor hubs that benefit from XLP deep-sleep current; and educational or hobby boards where the integrated USB and standardized pinout simplify prototyping. The 64 KB FLASH/4 KB RAM balance supports reasonable protocol stacks (USB CDC + command parser) while keeping unit cost low. When designing with this device, pay close attention to the dual-rail requirement: the VUSB3V3 pin supplies the internal USB transceiver and must be driven from a 3.3 V regulator (the IC has no internal 3.3 V LDO for USB). Decouple VDDCORE with 10 uF + 0.1 uF and ensure the 48 MHz PLL is configured correctly via the CONFIG registers, otherwise USB timing fails. The Device Firmware Upgrade (DFU) mode uses the same USB pins as the application, freeing PCB real estate.

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PIC18F46K20-E/PT

PIC18F46K20-E/PT - 64KB Flash 8-bit MCU, 48MHz, XLP, 44-TQFP | Microchip

The Microchip Technology PIC18F46K20-E/PT is an 8-bit PIC18 microcontroller with 64KB of Flash program memory, 3936 bytes of SRAM, and 1024 bytes of EEPROM, housed in a 44-pin TQFP (10x10 mm) package. Operating at up to 48 MHz with a C-optimized RISC architecture, this device integrates nanoWatt XLP (eXtreme Low Power) technology for energy-sensitive designs, plus a 10-bit ADC and multiple communication peripherals. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, combining CPU core, non-volatile Flash program memory, volatile SRAM, configurable digital I/O, on-chip timers, and mixed-signal peripherals such as ADCs and PWM modules. Within the broader taxonomy, the PIC18F46K20 belongs to the Flash microcontroller sub-family of microcontrollers, which itself sits inside the semiconductor / integrated circuit hierarchy. XLP variants extend the family with ultra-low sleep currents (down to the nanoampere range), targeting battery-powered and energy-harvesting designs. Key features include 36 configurable digital I/O pins, a 10-bit ADC with up to 28 channels, multiple Enhanced USART, SPI, and I2C peripherals, and Capture/Compare/PWM (ECCP) modules. The XLP technology provides nanoWatt sleep modes, and the device supports an extended instruction set option for code-density optimization. Core-independent peripherals reduce CPU wake-ups for responsive, low-power embedded control. The architecture is built on Microchip's enhanced RISC core with a Harvard bus, 16-bit instruction word, hardware multiplier, and an 8-level deep hardware stack. Linear program memory addressing up to 64 KB and linear data addressing up to 3936 bytes simplify C compiler output. The 48 MHz internal oscillator, combined with 4x PLL options, delivers 12 MIPS throughput while preserving low-power flexibility. Typical applications include low-power wireless sensor nodes, portable medical and consumer devices, HVAC and home-automation controllers, USB/HID peripherals using the on-chip full-speed USB, and industrial sensing platforms that require CAN-style robustness or serial connectivity. When designing with this part, place decoupling capacitors (100 nF ceramic plus bulk) as close as possible to each VDD/VSS pair, route the ICP/ICSP clock and data signals for in-circuit programming access, and respect the absolute maximum VDD rating. For sleep-mode designs, verify leakage budgets with the XLP parameter table. This page synthesizes distributor pricing, drop-in 44-TQFP alternatives, and XLP design notes not aggregated on any single manufacturer or distributor page.

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PIC18F46K20-I/ML

PIC18F46K20-I/ML - 8-bit 64MHz 64KB Flash MCU 44-QFN | Microchip

The Microchip Technology PIC18F46K20-I/ML is an 8-bit PIC18 microcontroller from the XLP nanoWatt family, featuring a 64 MHz internal clock, 64 KB of Flash program memory, 3936 bytes of SRAM, and 1024 bytes of EEPROM, housed in a 44-pin QFN (8x8 mm) package. It is built on Microchip's enhanced Harvard RISC architecture with a C-compiler-optimized instruction set, an optional extended instruction set for re-entrant code, and up to 1024 bytes of data EEPROM. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data bus, optimized for embedded control tasks where deterministic real-time response, low cost, and simple peripherals dominate over raw throughput. The PIC18 family sits in Microchip's mid-range 8-bit hierarchy: PIC10/12/16 -> PIC18 -> 16-bit dsPIC/PIC24 -> 32-bit PIC32, serving applications from toys and appliances up to industrial sensor nodes. The 'nanoWatt XLP' branding in PIC18F46K20 highlights an ultra-low-power design with sub-uA sleep currents that enable multi-year battery life in energy-harvesting or remote-sensor products. Key features of the PIC18F46K20 include a 64 MHz operating frequency (16 MIPS when using the 4x PLL from a 16 MHz source), 36 digital I/O pins, a 14-channel 10-bit ADC with auto-acquisition and conversion-during-sleep support, two rail-to-rail analog comparators with programmable reference, two CCP modules, an Enhanced CCP, an MSSP (SPI/I2C) peripheral, an Enhanced USART with LIN support, and a 1.2 V Fixed Voltage Reference. The 44-QFN package provides an exposed thermal pad for improved heat dissipation in high-I/O-count applications. The PIC18F46K20's design integrates nanoWatt XLP technology (deep sleep current typically <100 nA with RTCC and WDT enabled), a 31 kHz internal oscillator, and multiple clock modes including HFINTOSC and LFINTOSC with PLL. This combination makes the part particularly suitable for both line-powered and battery-powered designs that must keep standby power low while retaining computational horsepower for periodic sensor processing. Typical applications include industrial sensor interfaces, low-power remote metering, HVAC control panels, USB-to-UART bridges when paired with external transceivers, small appliances with LCD/keypad user interfaces, automotive body controllers, and battery-powered IoT edge nodes where the QFN footprint and high I/O count are valued. When designing with this MCU, place a 0.1 uF decoupling capacitor on every VDD pin and a single bulk capacitor on the AVDD rail; ensure the QFN thermal pad is soldered to a continuous ground copper pour for both thermal and electrical performance. For battery applications, verify the specific nanoWatt current numbers against your chosen clock and peripheral configuration. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that supplement the Microchip datasheet and are not found on any single distributor product page.

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PIC18F46K20-I/PT

PIC18F46K20-I/PT - 8-Bit 64MHz 64KB Flash MCU | Microchip

The Microchip Technology PIC18F46K20-I/PT is an 8-bit PIC18 microcontroller with 64 MHz CPU performance, 64 KB Flash program memory, and 3936 bytes of RAM in a 44-pin TQFP (10x10 mm) package. According to the manufacturer datasheet, the device belongs to the PIC18F46K20 family (28/40/44-pin Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology) and integrates nanoWatt XLP power management for ultra-low-power operation. An 8-bit PIC microcontroller (MCU) is a programmable computing device built around an 8-bit data path, on-chip Flash for program storage, RAM for runtime variables, and a rich set of peripherals (ADC, timers, communication ports). MCUs sit within the broader hierarchy of microcontrollers -> embedded processors -> semiconductors, providing deterministic real-time control for everything from household appliances to industrial machinery. The 'K20' family suffix in particular denotes the XLP (eXtreme Low Power) nanoWatt generation, optimized for battery-operated and energy-harvesting designs. Key features of the PIC18F46K20-I/PT include 64 KB (32K x 16) of self-programmable Flash, 3936 bytes of SRAM, 256 bytes of EEPROM, 36 digital I/O pins, a 10-bit ADC with up to 14 channels, multiple Enhanced USART, MSSP (SPI/I2C), and 10-bit PWM modules. The device supports an operating voltage range of 1.8V to 3.6V and offers nanoWatt XLP modes including sleep currents in the sub-microamp range, making it well-suited for always-on applications. The 44-pin TQFP (PT) package provides 36 I/O pins in a 10x10 mm body with 0.8 mm pitch for hand or reflow soldering. The architecture uses a 16-bit instruction word with an 8-bit data path, and the 64 MHz internal oscillator eliminates the need for an external crystal in many designs. AEC-Q100 automotive qualification is supported across the family. Typical applications include consumer white goods, industrial control panels, battery-powered sensor nodes, automotive body and comfort electronics, USB/HID peripherals using the MSSP, and low-cost embedded control boards. Design considerations include ensuring Vdd decoupling near the supply pins, configuring the configuration bits for the chosen oscillator, and following Microchip AN1229 for low-power sleep mode usage.

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PIC18F46K20T-I/MV

PIC18F46K20T-I/MV - 8-bit 64MHz 64KB Flash MCU | Microchip

The Microchip Technology PIC18F46K20T-I/MV is an 8-bit PIC18 family microcontroller with 64KB (32K x 16) of Flash program memory, 3.8KB of RAM, and a maximum CPU clock of 64MHz, packaged in a 40-pin UQFN (5x5 mm) with an exposed thermal pad. It belongs to the PIC XLP 18K nanoWatt XLP series, delivering 200 ns instruction execution while supporting low-power operation across a 1.8V to 3.6V VDD range. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory (Flash), volatile data memory (RAM), peripherals such as timers, A/D converters, and communication interfaces (UART, SPI, I2C), and general-purpose I/O into one package. Within the broader semiconductor hierarchy, an MCU is a sub-class of embedded processor -> microprocessor -> semiconductor device. The PIC18 family uses a RISC Harvard architecture with a 16-bit program word and 8-bit data path, balancing code density with deterministic interrupt handling - qualities that make PIC18 parts a baseline choice for cost-sensitive embedded control, especially in consumer, industrial, and low-power battery applications. Key features of the PIC18F46K20T-I/MV include 35 digital I/O pins, 14 channels of 10-bit A/D conversion, 2 analog comparators, a hardware ECCP module, MSSP (SPI/I2C) and enhanced USART peripherals, four timers (three 16-bit, one 8-bit), and nanoWatt XLP technology that drives active current down to a few hundred microampere per MHz and sleep current into the sub-microampere region. The internal oscillator is factory calibrated to multiple frequencies up to 64MHz, eliminating the cost of an external crystal in many designs. Architecturally, the PIC18F46K20 uses a 16-bit modified Harvard bus with a hardware multiply and 8x8 hardware multiply support, two hardware stack levels for context save, and a vectored interrupt controller. The device operates across -40C to +85C industrial temperature range and supports in-circuit serial programming (ICSP) plus in-circuit debugging via Microchip's MPLAB ecosystem. Typical applications include consumer appliances, low-power remote controls, sensor nodes, battery-powered instrumentation, USB-CDC bridges (using software stack), and industrial control front-ends. The wide operating voltage range makes it well suited for 2-cell battery packs and energy-harvesting systems. When designing with the PIC18F46K20T-I/MV, ensure the UQFN exposed pad is soldered to a continuous ground plane for thermal dissipation and mechanical reliability. Decouple VDD with 100nF ceramic plus 10uF bulk, and follow Microchip's MPLAB X IDE guidance for configuration bit setting (oscillator, brown-out, watchdog, code protection) before code generation. This page synthesizes verified distributor pricing, drop-in compatible alternatives from the same Microchip PIC18F K-series family, application patterns, and design considerations not always assembled in the manufacturer datasheet.

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PIC18F46K20T-I/PT

PIC18F46K20T-I/PT - 64KB Flash 8-bit XLP MCU, 44-TQFP | Microchip

The Microchip Technology PIC18F46K20T-I/PT is an 8-bit PIC18 RISC microcontroller with 64KB Flash, 3936 bytes SRAM, 64MHz CPU clock and 36 I/O pins, housed in a 44-pin TQFP (10x10 mm) package and qualified to AEC-Q100 for automotive use. The 'T' suffix denotes tape-and-reel packaging, the 'I' indicates the industrial -40C to +85C operating range, and the /PT package code maps to TQFP-44. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (Flash), working RAM, peripherals and I/O onto one die. The PIC18 family is Microchip's high-performance 8-bit line, with a 16-bit instruction word that lets one instruction encode a 32-bit literal or a relative branch. Compared with legacy 16-bit and 32-bit MCUs, 8-bit parts remain attractive for cost-sensitive, low-power, deterministic control tasks where instruction-byte efficiency, low pin count and long battery life outweigh raw throughput. nanoWatt XLP technology on the 'K20' family targets standby currents in the nanoamp range, enabling line-powered and energy-harvesting applications. Key features include 64MHz (16 MIPS) operation from 1.8V to 3.6V, hardware 8x8 multiplier, C compiler-friendly architecture, 14-channel 10-bit ADC, two analog comparators, two PWM modules with enhanced capture/compare, a master I2C/SPI/UART set, 25mA source/sink per I/O, and self-programming Flash. With 36 I/O and 64KB code space, the part scales from small sensor nodes to user-interface and motor-control applications. Typical uses include automotive body and HVAC modules (AEC-Q100 qualified), industrial sensor and metering nodes, low-power remote controls, white-goods and small appliances, USB HID class devices, and battery-powered instruments. The combination of nanoWatt XLP sleep, 10-bit ADC and 36 I/O gives strong fit for mixed-signal embedded products where both analog sensing and digital I/O density are required. Design consideration: at 64MHz and 3.3V the device draws roughly 10-15mA active, so decoupling with a 100nF ceramic close to each VDD/AVDD pair plus a 10uF bulk is essential; long PCB traces on oscillator pins must be avoided. Code-protect and ICSP-related configuration bits must be set before locking the device. This page synthesizes tier-1 distributor pricing, pin-compatible PIC18F family drop-in alternatives, and practical low-power design notes that go beyond the manufacturer datasheet to help procurement, hardware and firmware engineers evaluate the part quickly.

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PIC18F46K20T-I/MV - 8-bit 64MHz 64KB Flash MCU | Microchip

PIC18F46K20T-I/PT - 64KB Flash 8-bit XLP MCU, 44-TQFP | Microchip