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PIC18F45K42-I/P - 8-bit 64MHz MCU, 32KB Flash, 40-PDIP | Microchip
PIC18F45K42-I/P

PIC18F45K42-I/P - 8-bit 64MHz MCU, 32KB Flash, 40-PDIP | Microchip

The Microchip Technology PIC18F45K42-I/P is an 8-bit PIC microcontroller running at up to 64 MHz with 32 KB of Flash, 2 KB of RAM and 256 B of EEPROM, housed in a 40-pin PDIP through-hole package for breadboard and socketed designs. What is a PIC18 microcontroller? A PIC18 is a family of 8-bit Harvard-architecture RISC microcontrollers from Microchip Technology that combine a modified Harvard core with rich peripheral integration. PIC18 MCUs sit above PIC16 parts in the Microchip 8-bit portfolio and below the dsPIC/PIC24 16-bit line, forming the workhorse tier for embedded control, IoT edge nodes, automotive body and white-goods applications where deterministic I/O and a familiar toolchain matter more than raw MIPS. Key features include a 12-bit ADC with computation (ADC2), a 5-bit DAC, three op-amps, two comparators, a Complementary Waveform Generator (CWG), multiple PWM channels, Direct Memory Access (DMA), vector interrupts, a Device Information Area (DIA) and a Memory Access Partition (MAP) for bootloader/dual-image partitioning. The K42 family also integrates Core Independent Peripherals (CIPs) that operate without CPU intervention, reducing firmware complexity and improving real-time determinism. The device operates from 2.3 V to 5.5 V on a single supply, supports the eXtreme Low Power (XLP) sleep modes, and offers up to 36 I/O pins plus one input-only pin. It uses a 4PLL clock tree from a 64 MHz internal oscillator, providing instruction-cycle timing down to 62.5 ns. Programming is supported by MPLAB X IDE, XC8 compilers and the PICkit/SNAP/MPLAB ICD programmer family. Typical applications include industrial sensor conditioning, motor and pump control, small-form-factor consumer appliances, LED lighting controllers and home-automation gateways. The 40-pin PDIP form factor remains popular for prototypes, educational kits and low-volume production where through-hole soldering simplifies rework. When designing with this part, allocate the 12-bit ADC2 with adequate acquisition time, de-bounce mechanical inputs in firmware, and respect the 5.5 V absolute maximum on VDD. For migration to surface-mount, the K42 family also offers 40-pin QFN and TQFP packages with the same peripheral set.

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PIC18F45K42-I/PT - 8-Bit 64MHz XLP MCU 32KB Flash TQFP-44
PIC18F45K42-I/PT

PIC18F45K42-I/PT - 8-Bit 64MHz XLP MCU 32KB Flash TQFP-44

The Microchip Technology PIC18F45K42-I/PT is an 8-bit RISC PIC18 microcontroller running at up to 64 MHz, integrating 32 KB of Flash program memory (16K x 16 words), 2 KB of data RAM, and 256 bytes of Data EEPROM in a 44-pin TQFP (10x10 mm) package with industrial -40C to +85C temperature rating. The device features a rich set of core-independent peripherals (CIPs) including a 12-bit ADC with Computation (ADC2), 8-bit DAC, configurable op amps, comparators, PWM modules, vector interrupts, DMA, and a Device Information Area (DIA). It supports 3.3V and 5V operation from the same wide VDD range, and adds intelligent analog and signal conditioning features that offload the CPU. An 8-bit PIC microcontroller is a Harvard-architecture RISC processor that executes instructions in a single cycle (except branches), with separate program and data buses. In the system hierarchy, the PIC18F45K42 belongs to the microcontroller class of embedded computing devices, which sits under the broader category of microprocessors and semiconductors. The PIC18 family is Microchip's mainstream 8-bit line, optimized for low-power (XLP - eXtreme Low Power) and mixed-signal embedded designs where deterministic real-time control is more important than raw arithmetic throughput. Key features include 32 KB Flash, 2 KB RAM, 256 B EEPROM, up to 64 MHz CPU clock (16 MIPS), 12-bit ADC2, DMA, Configurable Logic Cells (CLC), Complementary Waveform Generator (CWG), numerically controlled oscillator (NCO), and four 16-bit timers. Peripherals communicate via Peripheral Pin Select (PPS), dramatically simplifying PCB routing. The vectored interrupt controller with hardware assist reduces latency for time-critical events. Typical applications include industrial control panels, sensor signal conditioning, motor control with FOC support, IoT edge nodes, smart energy metering, automotive body modules, and human-machine interface (HMI) boards. Designers use the device when they need on-chip analog conditioning alongside an 8-bit control plane without adding an external DSP or ASIC. Designers should enable the ICD pins (PGC/PGD) on every prototype board to keep the ICSP programming/debug path open; also provide a bulk decoupling cap within 10 mm of the VDD pins and use PPS routing to avoid pinout conflicts. The XLP sleep modes can drop quiescent current to the low nA range when battery life dominates the BOM. This page consolidates distributor pricing, drop-in pin-compatible variants, and PCB-level design considerations that are not always visible on a single manufacturer product page or distributor listing.

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PIC18F45K42T-I/ML - 8-bit 64MHz 32KB Flash MCU 44-QFN
PIC18F45K42T-I/ML

PIC18F45K42T-I/ML - 8-bit 64MHz 32KB Flash MCU 44-QFN

The Microchip PIC18F45K42T-I/ML is an 8-bit PIC18 XLP microcontroller featuring a 64 MHz CPU, 32 KB Flash program memory, 2 KB RAM, and 256 B EEPROM, housed in a 44-pin QFN (8x8 mm) package with exposed thermal pad. It operates from 2.3 V to 5.5 V and offers 36 configurable I/O pins, 12-bit ADC2 with computation, on-chip DAC, comparators, multiple PWM modules, vectored interrupts, and a DMA controller for CPU-independent data movement. The part suffix "T" denotes tape-and-reel packaging and the "I" temperature grade spans -40 C to +85 C industrial range. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, non-volatile storage, and a rich set of on-chip peripherals such as ADCs, timers, communication controllers, and GPIO. The PIC18 family sits within Microchip's 8-bit PIC architecture hierarchy (PIC10/12/16/18 -> 8-bit MCU -> microcontroller -> embedded IC) and the K42 sub-family is specifically designed for ultra-low-power XLP applications using eXtreme Low-Power techniques such as idle/doze/sleep modes, peripheral module disable, and nanoWatt XLP technology for battery-driven designs. Key features include the Core Independent Peripherals (CIPs) ecosystem - CLC, SMT, NCO, PWM, and CRC/SCAN - that execute without CPU intervention, the 12-bit ADC2 with automated accumulation, threshold compare, and oversampling, four complementary output generators with hardware dead-band control, and direct memory access between memory and peripherals. The instruction set uses a 16-bit op-code with an 8-bit data path and is backward compatible with the established PIC18 instruction set, simplifying code migration within the family. The device integrates two USART modules, two SPI/I2C MSSP modules, and a 32 kHz LP oscillator for RTC operation, plus a windowed watchdog timer and HLVD (hardware low-voltage detect). This combination makes the K42 suitable for mixed-signal sensor nodes, motor control, smart energy, lighting control, and IoT edge devices where deterministic response and low power are both required. Typical applications include IoT sensor nodes, industrial sensor hubs, low-power wireless controllers (paired with an external radio), HVAC and home-automation user interfaces, BLDC/PMSM motor-control FOCs, and consumer appliances. The wide 2.3-5.5 V range lets the same hardware work from a single-cell Li-Ion pack or a regulated 5 V rail without level shifters. When designing with this part, budget the ADC acquisition and conversion time carefully against your control-loop period, since ADC2 auto-scan plus DMA minimizes CPU load but the application firmware still owns the trigger. Ensure the exposed pad is soldered to a sufficient copper pour for thermal relief at full 64 MHz operation. This page synthesizes distributor pricing, drop-in alternatives, and design considerations not found in the manufacturer datasheet, giving engineers a single reference for sourcing and engineering decisions.

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PIC18F45K50-I/MV - 8-bit 48MHz 32KB Flash USB MCU | Microchip
PIC18F45K50-I/MV

PIC18F45K50-I/MV - 8-bit 48MHz 32KB Flash USB MCU | Microchip

The Microchip Technology PIC18F45K50-I/MV is a 32KB Flash, 8-bit PIC18 microcontroller operating at up to 48 MHz, housed in a 40-pin UQFN (5x5 mm) package with exposed pad. It integrates a full-speed USB 2.0 transceiver, 2 KB SRAM, 256 B EEPROM, a 25-channel 10-bit ADC, a 5-bit DAC, and three CCP modules plus enhanced USART, SPI, and I2C peripherals, all in the eXtreme Low Power (XLP) family. A microcontroller (MCU) is a single-chip computer that combines a CPU core, non-volatile program memory (Flash), volatile working memory (RAM), and a rich set of on-chip peripherals (timers, ADC/DAC, communication interfaces) onto one silicon die. Within the broader product hierarchy, PIC18F45K50 belongs to the 8-bit PIC18 family -> microcontrollers -> integrated circuits -> semiconductors. Its USB 2.0 Full-Speed (12 Mbps) peripheral sets it apart from non-USB PIC18 cousins and makes it a logical choice for embedded hosts and devices that previously required an external USB transceiver. Key features include an 8x8 hardware multiplier accelerating arithmetic, an internal 48 MHz oscillator tunable against the USB host clock via Active Clock Tuning (eliminates an external crystal in many USB applications), and the nanoWatt XLP technology delivering sleep currents below 50 nA typical. CIP (Core Independent Peripherals) such as CWG, NCO, and DSM offload tasks from the core, while the 32 KB self-write-capable Flash supports bootloader-style field updates without an external programmer. The 40-pin UQFN-EP (5x5 mm) package exposes a thermal pad that improves heat extraction at the higher 48 MHz clock, and the industrial -40C to +85C operating range covers most commercial and industrial embedded products. Migration from the older PIC18F4550 family is pin-compatible for USB D+/D- and most digital I/O, easing retrofits. Typical applications include USB HID/CDC peripherals (mice, keyboards, custom sensors), USB-to-UART bridges, low-power data loggers with on-board ADC, industrial control nodes with RS-485, and consumer appliances with capacitive touch via the CTMU peripheral. Pair the device with a Microchip MCP2200 or direct USB bus-power design. When designing in this part, allocate sufficient decoupling (100 nF plus 1 uF bulk within 5 mm of the VDD pins) and tie the exposed pad to a continuous ground plane for thermal and signal-integrity reasons. Designers migrating from PIC18F4550 must update the Configuration Words because the oscillator and USB settings differ between the two families.

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PIC18F45K50-I/PT - 8-bit USB MCU, 32KB Flash, 48MHz, TQFP-44 | Microchip
PIC18F45K50-I/PT

PIC18F45K50-I/PT - 8-bit USB MCU, 32KB Flash, 48MHz, TQFP-44 | Microchip

The Microchip Technology PIC18F45K50-I/PT is an 8-bit PIC18 XLP microcontroller integrating a USB 2.0 Full-Speed peripheral, 32 KB of Flash program memory, 2 KB of RAM, and 256 bytes of EEPROM, all in a 44-pin TQFP (10x10 mm) package. It executes instructions at up to 48 MHz (12 MIPS) and operates from 2.3 V to 5.5 V across the industrial -40C to +85C temperature range, making it a strong fit for both USB and legacy 5 V designs. An 8-bit microcontroller (MCU) is a programmable processor that executes one byte of data per instruction cycle and is typically selected for cost-sensitive, deterministic embedded control. Within the broader taxonomy, the PIC18F45K50 sits in the microcontroller -> 8-bit MCU -> PIC18 family -> PIC18F K-series chain, and combines general-purpose I/O with dedicated USB, ADC, and PWM peripherals. The integrated XLP (eXtreme Low Power) technology from Microchip is what differentiates this family from earlier PIC18F devices by offering nanoWatt sleep currents in the order of tens of nA. Key features include an internal 48 MHz oscillator accurate to within 0.25% after USB host tuning, 36 digital I/O pins, a 10-bit ADC with up to 25 input channels, two analog comparators, two 8-bit timers and three 16-bit timers, two CCP modules plus one Enhanced CCP, an integrated 5-bit DAC, and a CTMU charge-time measurement unit. The USB 2.0 Full-Speed transceiver is on-chip with internal pull-up resistors, and Active Clock Tuning from the USB host corrects oscillator drift automatically, enabling crystal-less USB designs. Architecturally, the PIC18F45K50 uses an enhanced Harvard RISC core with an 8x8 hardware multiplier, hardware read/write Flash, and a separate peripheral bus. Compared with the older PIC18F4550 family, this K50 generation reduces sleep current by roughly 90%, removes some legacy analog modules, and adds native Active Clock Tuning for USB. The device is pin-compatible with the PIC18LF4550 footprint, so existing 44-pin TQFP layouts can be migrated with only firmware changes per Microchip's migration guide. Typical applications include USB HID peripherals such as keyboards, mice, and custom HID-class devices, CDC virtual COM port bridges, low-cost data loggers, capacitive touch keypads using the CTMU, and small industrial sensors that need USB diagnostic connectivity. The XLP sleep modes also make it suitable for battery-powered edge nodes that wake on a USB attach event or external interrupt. When designing with this device, budget the VUSB 3.3 V regulator current carefully and add the recommended 220 nF VUSB bypass capacitor as specified in the datasheet typical application circuit. Program development is supported by the MPLAB X IDE, MPLAB Code Configurator (MCC), and the XC8 compiler, and firmware is loaded via ICSP or the high-voltage ICSP entry mode. This page synthesises distributor pricing, drop-in same-package alternatives, and practical design notes drawn from the Microchip datasheet and the PIC18F4550-to-PIC18F45K50 migration guide, information that is not aggregated on a single OEM or distributor page.

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PIC18F45K50T-I/MV - 8-Bit 48MHz USB MCU 32KB Flash UQFN-40
PIC18F45K50T-I/MV

PIC18F45K50T-I/MV - 8-Bit 48MHz USB MCU 32KB Flash UQFN-40

The Microchip Technology PIC18F45K50T-I/MV is an 8-bit PIC18 XLP flash microcontroller running at up to 48 MHz with 32 KB of program memory, packaged in a 40-pin UQFN (MV) 5x5 mm form factor with exposed pad and shipped on tape and reel. It belongs to the PIC18F45K50 family, which combines a high-performance PIC RISC core with on-chip full-speed USB 2.0, an internal 48 MHz oscillator that can be USB-tuned against the host frame clock, and Microchip's nanoWatt XLP extreme low-power technology for battery-friendly designs. The part carries 256 bytes of true EEPROM, hardware 8x8 multiply, self read/write flash, and a rich peripheral set including enhanced CCP, multiple timers, ADC, comparators, and a 2.0-compliant USB transceiver on-chip. An 8-bit microcontroller (MCU) is a single-chip computer integrating a CPU, RAM, non-volatile program and data memory, and peripherals. Within the broader taxonomy, the PIC18F45K50 family sits at 8-bit PIC -> PIC18 microcontrollers -> Microcontroller -> Microprocessor and logic -> semiconductor. The 8-bit PIC18 RISC core executes most instructions in a single 200 ns cycle (at 48 MHz internal clock), giving up to 16 MIPS, which is sufficient for USB CDC/HID, sensor conditioning, and small protocol stacks. The XLP feature set allows standby currents in the nanoamp range, making the family a logical choice when battery life dominates the BOM. Key features include 32 KB (16K x 16) self read/write flash, 2 KB data SRAM, 256 bytes EEPROM, 35 digital I/O, USB 2.0 full-speed with on-chip transceiver, internal 48 MHz oscillator with Active Clock Tuning from the USB host, 10-bit ADC up to 25 channels, two comparators, enhanced CCP with PWM, multiple communication peripherals (UART, SPI, I2C), and an operating voltage range of 2.5 V to 5.5 V (F-version, F25-F50 series). The UQFN-40 (MV) 5x5 mm package with exposed thermal pad reduces PCB area versus TQFP-44 while maintaining pin functionality for the standard PIC18F4x family pinout. The architecture leverages Microchip's enhanced mid-range core with hardware multiply, a 16-bit instruction word, and a single 32-level hardware stack. Active Clock Tuning trims the internal 48 MHz oscillator against the USB host 1 kHz SOF reference, eliminating the need for an external crystal in USB designs and improving BOM cost and EMI. The on-chip USB 2.0 transceiver supports CDC, HID, MSD and proprietary classes, while XLP adds deep sleep, RTC, and power-managed peripherals for sleep currents below 100 nA typical. Typical applications include USB-to-UART bridges, USB HID/HMI devices such as custom keyboards and mice, USB sensor dongles, low-power data loggers, learning platforms (the K50 is widely used in Microchip's low-pin-count USB dev kits), home automation nodes, and industrial sensor interfaces with USB diagnostics. The wide 2.5 V to 5.5 V range also supports lithium-ion battery packs and 5 V industrial buses. Designers should note that the 'T' suffix denotes Tape & Reel packaging, the 'I' is the industrial -40 C to +85 C temperature grade, and 'MV' indicates the UQFN-40 5x5 package. When migrating from the PIC18F4550, configuration bit locations and a few register names differ; refer to Microchip's migration document for software changes. This page synthesizes distributor pricing, drop-in same-family alternatives in the same UQFN-40 package, and practical design notes not found in the manufacturer datasheet, with all parameters traceable to Microchip documentation and current distributor listings as of 2026-09-28.

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PIC18F45K80-E/ML - 64MHz 8-bit MCU with ECAN, 32KB Flash | Microchip
PIC18F45K80-E/ML

PIC18F45K80-E/ML - 64MHz 8-bit MCU with ECAN, 32KB Flash | Microchip

The Microchip Technology PIC18F45K80-E/ML is a high-performance 8-bit PIC microcontroller with integrated ECAN (Enhanced Controller Area Network), 32KB (16K x 16) of Flash program memory, and nanoWatt XLP extreme-low-power technology, housed in a 44-pin QFN (8x8 mm) exposed-pad package. It operates from 1.8V to 5.5V, supports a 64MHz system clock (16 MIPS), and includes 35 I/O pins, 3.6KB of RAM, and on-chip 1KB EEPROM. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and peripherals on one die. The PIC18 family sits within Microchip's 8-bit MCU hierarchy: PIC10/12/16/18 -> 8-bit PIC -> microcontroller -> embedded processor -> semiconductor. The 'K' family designation denotes nanoWatt XLP low-power operation, while the '80' suffix marks the ECAN-equipped variant, targeting automotive and industrial CAN-bus applications. Key features of the PIC18F45K80 include integrated ECAN 2.0B with six programmable receive/transmit buffers, a 12-bit A/D converter with up to 12 channels, three dedicated transmit buffers, hardware CTMU (Charge Time Measurement Unit) for capacitive touch and precise time measurement, and enhanced PWM/capture/compare peripherals for precision timing. The device supports SPI, I2C, and USART connectivity alongside ECAN, making it suitable for industrial and automotive networking. The device uses an enhanced Harvard RISC architecture with a 16-bit instruction word and an 8-bit data path, achieving 16 MIPS performance at 64MHz. Sleep current is reduced to nanowatt levels through XLP technology, and an internal oscillator option reduces external component count for space-constrained designs. Typical applications include automotive body and chassis ECAN nodes, industrial building control, elevator control systems, HVAC fan control, sensor interfacing, and low-power remote sensor nodes. The combination of ECAN + 12-bit ADC + nanoWatt XLP makes this part particularly well suited for distributed industrial control networks operating on 3.3V or 5V rails. When designing with this MCU, ensure the exposed thermal pad on the QFN package is soldered to a sufficient copper pour (recommended >= 1 sq. inch) to meet thermal and electrical grounding requirements. Programming and debugging are supported via MPLAB X IDE and ICD 3 / PICkit 4 tools. This page synthesizes current distributor pricing, parametric drop-in alternatives, and practical design notes beyond the manufacturer datasheet, giving procurement and embedded engineers a faster selection path.

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PIC18F45K80-E/PT - 64MHz 8-bit MCU, 32KB Flash, ECAN, TQFP-44 | Microchip
PIC18F45K80-E/PT

PIC18F45K80-E/PT - 64MHz 8-bit MCU, 32KB Flash, ECAN, TQFP-44 | Microchip

The Microchip Technology PIC18F45K80-E/PT is a high-performance 8-bit PIC microcontroller with integrated ECAN, delivering 16 MIPS performance at 64 MHz while operating from 1.8 V to 5.5 V. It integrates 32 KB of Flash program memory, 3.6 KB of RAM, 1 KB of EEPROM, and 35 digital I/O pins in a 44-pin TQFP (10x10 mm) package with exposed pad. A microcontroller (MCU) is a single-chip computer containing a CPU core, program and data memory, programmable I/O peripherals, and various communication interfaces. Within the PIC® family hierarchy, the PIC18F45K80 belongs to the PIC18 8-bit advanced MCU class, which sits between 16-bit PIC24/dsPIC parts and the smaller pin-count PIC16 series. nanoWatt XLP™ (eXtreme Low Power) technology places it within Microchip's low-power portfolio, targeting battery and energy-harvesting applications. Key features include a 12-bit ADC with up to 11 channels, a Charge Time Measurement Unit (CTMU) for capacitive touch sensing, three 16-bit timers, two comparators, and an Enhanced Universal Synchronous/Receiver/Transmitter (EUSART). The integrated ECAN module supports CAN 2.0B with six programmable receive/transmit buffers and three dedicated transmit buffers, making the device well suited to in-vehicle networking. The -E suffix denotes the extended operating temperature range of -40 °C to +125 °C. Internal architecture combines a RISC-based PIC18 CPU core with a modified Harvard bus, allowing simultaneous instruction fetch and data access. The integrated ECAN hardware offloads message filtering and arbitration from software, reducing CPU load in multi-node automotive networks. Sleep current is rated in the nano-ampere range, allowing battery-powered nodes to remain dormant for years while still responding to CAN or timer wake-up events. Typical applications include CAN-based automotive body and chassis ECUs, building automation controllers, elevator control systems, capacitive touch human-machine interfaces, industrial sensor nodes, and OBD-II diagnostic interfaces. The 64 MHz core provides sufficient throughput for sensor fusion and CAN message processing in real time. Designers should confirm decoupling (100 nF + bulk) is placed within a few millimeters of the supply pins, route the ECAN TX/RX traces as a differential pair with 120 Ω termination, and use the exposed pad for thermal relief even at modest clock speeds.

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PIC18F45K80-H/ML - 8-Bit 64MHz MCU, 32KB Flash, ECAN | Microchip
PIC18F45K80-H/ML

PIC18F45K80-H/ML - 8-Bit 64MHz MCU, 32KB Flash, ECAN | Microchip

The Microchip Technology PIC18F45K80-H/ML is a high-temperature-grade 8-bit microcontroller from the PIC18F K80 family, integrating 32 KB of Flash program memory, 3.6 KB of RAM, and 1 KB of EEPROM in a 44-pin VQFN (8x8 mm) exposed-pad package. It runs at up to 64 MHz (16 MIPS) and operates from 1.8 V to 5.5 V, with on-chip ECAN, 12-bit ADC, CTMU touch interface, and nanoWatt XLP ultra-low-power technology. The "-H" suffix denotes the high-temperature variant qualified for extended ambient operation, and the "/ML" suffix specifies the 44-VQFN surface-mount land pattern. An 8-bit microcontroller (MCU) is a single-chip computer optimized for embedded control tasks such as sensor reading, motor actuation, and protocol bridging. PIC18F devices sit between entry-level PIC16F parts and 16-bit dsPIC/PIC24F devices, offering more peripherals and code space while retaining the legacy PIC instruction set. The PIC18F45K80 specifically belongs to the K80 sub-family, which adds an integrated ECAN 2.0B controller and nanoWatt XLP sleep modes aimed at automotive and battery-powered designs. Key features include 35 digital I/O lines, three 16-bit timers, two analog comparators, a 12-bit ADC with up to 11 channels, an enhanced USART, SPI, I2C, an ECAN module with three dedicated transmit buffers and six programmable receive/transmit buffers, and a CTMU for capacitive touch sensing. nanoWatt XLP provides sleep currents in the nanoamp range, making the part suitable for always-on applications. The integrated ECAN eliminates the need for an external CAN controller, reducing board area and BOM cost in vehicle networks. In terms of architecture, the device uses a Harvard-style RISC core with hardware multiply, 16-bit instruction words, and an 8-bit data path, plus a 31-level deep hardware stack. The 44-VQFN exposed-pad package provides a low thermal-resistance path (theta-JA roughly 28 C/W per package family data), supporting continuous operation at industrial and high-ambient temperature grades. Internal oscillator options and a wide 1.8 V to 5.5 V supply range let designers drop external clocks and run from a single cell or regulated 3.3 V rail. Typical applications include automotive body and chassis ECAN nodes, industrial CAN bus equipment, building-control and HVAC controllers, capacitive touch user interfaces, battery-powered sensor hubs, and OBD-II diagnostic peripherals. The wide voltage range and high-temperature rating also make the part suitable for under-hood and outdoor deployments. The -H/ML variant is the high-temperature, VQFN-packaged option of the family. When designing with this part, place the exposed pad on a continuous ground pour to dissipate the 100 mA maximum I/O sink current and improve thermal coupling. Decouple VDD with at least 100 nF and 10 uF ceramics within 5 mm of the supply pins, and reserve MCLR with a 10 kohm pull-up and a 100 nF capacitor to ground for in-circuit serial programming. The ECAN pins require a 120 ohm termination resistor at each end of the bus segment per ISO 11898. This page synthesizes DigiKey/Mouser distributor pricing, drop-in VQFN-44 alternatives from the same K80 family, comparison data versus PIC18F45K42-I/ML, and practical design notes not found in the manufacturer datasheet alone.

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PIC18F45K80-H/PT - 8-bit MCU, 64MHz, 32KB Flash, ECAN, TQFP-44 | Microchip
PIC18F45K80-H/PT

PIC18F45K80-H/PT - 8-bit MCU, 64MHz, 32KB Flash, ECAN, TQFP-44 | Microchip

The Microchip Technology PIC18F45K80-H/PT is a high-temperature, 8-bit PIC microcontroller built on the PIC18F family core, delivering 64 MHz (16 MIPS) performance with 32 KB of Flash program memory in a 44-pin TQFP (10x10 mm) package. It features an integrated ECAN (Enhanced Controller Area Network) module with six programmable receive/transmit buffers, three dedicated transmit buffers, and a charge time measurement unit (CTMU) for capacitive-touch user interfaces. The device operates from 1.8 V to 5.5 V with nanoWatt XLP extreme-low-power modes, making it suitable for energy-conscious applications. A 12-bit ADC with advanced analog interface, multiple timers, enhanced compare/capture/PWM modules, and 35 digital I/O lines round out its peripheral set, while the -H temperature grade marks it for high-temperature environments beyond the standard industrial -40 C to +85 C range. A microcontroller (MCU) is a single-chip computer that integrates a CPU, volatile and non-volatile memory, and configurable peripherals around a shared bus. The PIC18F is an enhanced 8-bit Harvard-architecture MCU family from Microchip with a RISC-style instruction set, hardware multiply, and 16-bit instruction words. Within the broader microcontroller taxonomy, the PIC18F45K80 belongs to the PIC18 K-series, distinguished by the K80 family's combination of ECAN, nanoWatt XLP, and CTMU peripherals tailored for automotive, building, elevator, and capacitive-touch designs. Key features include integrated ECAN with flexible buffer configuration, 32 KB Flash supporting self-programmability via runtime write capability, 3.6 KB RAM, 1 KB EEPROM, an internal oscillator selectable up to 64 MHz, and a 12-bit ADC supporting touch sensing via the CTMU. Three dedicated ECAN transmit buffers, FIFO or standard buffer modes, and programmable filtering add robustness to CAN bus workloads. The combination of ECAN and nanoWatt XLP enables sensor and actuator nodes that wake from CAN traffic, prolonging battery life in remote field installations. Architecturally, the PIC18F45K80 uses a modified Harvard memory layout with separate program and data buses, a 32-level hardware stack, and a 16-bit instruction path that delivers predictable interrupt latency. The ECAN module implements CAN 2.0B with 29-bit identifiers and is ISO 16845 certified for conformance at the protocol layer, while the nanoWatt XLP technology reduces sleep current to nanoampere levels and supports multiple wake sources including INT, RTCC, and watchdog. Typical applications include building automation (HVAC, lighting, occupancy), elevator controllers, automotive CAN nodes, capacitive-touch user interfaces, and industrial sensors that must operate from battery power. The wide 1.8 V to 5.5 V supply range allows direct connection to 3.3 V sensors or 5 V actuator drivers without level shifters, simplifying analog front-end design. When designing with this MCU, budget carefully for the 44-pin TQFP package's fine 0.8 mm pitch, which requires careful PCB layout, and verify that the VDD rise-time specification (tVDDR) is met to ensure proper POR behavior. Choosing the -H grade part (vs -I or -E variants) gives extended high-temperature operation beyond +85 C and is the key consideration for this part number. This page synthesizes distributor pricing, drop-in alternatives, and PCB design notes not found in the manufacturer datasheet.

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PIC18F45K80-I/P - 8-bit MCU, 32KB Flash, ECAN, XLP | Microchip
PIC18F45K80-I/P

PIC18F45K80-I/P - 8-bit MCU, 32KB Flash, ECAN, XLP | Microchip

The Microchip Technology PIC18F45K80-I/P is a high-performance 8-bit PIC18 microcontroller with integrated ECAN, 32KB of Flash program memory, and 4KB of RAM, housed in a 40-pin PDIP (DIP-40) through-hole package. It executes instructions at up to 16 MIPS from a 64 MHz internal oscillator, and operates from 1.8 V to 5.5 V across the industrial -40 C to +85 C temperature range. The -I/P suffix denotes the industrial temperature grade and PDIP package. A microcontroller (MCU) is a single-chip computer containing a CPU, non-volatile program memory, working RAM, and programmable peripherals. PIC microcontrollers use a RISC Harvard architecture that fetches instructions and data on separate buses, allowing most instructions to complete in one cycle. The PIC18F K80 family extends this with eXtreme Low Power (XLP) technology and an integrated CAN 2.0B controller, placing it in the tier of mid-range 8-bit MCUs alongside Atmel AVR and NXP HC08 devices, but with on-chip CAN support that historically required an external controller. Key features include 12-bit A/D conversion across 11 channels, 5 PWM outputs, 9 enhanced Capture/Compare/PWM modules, 2 analog comparators, an integrated Charge Time Measurement Unit (CTMU) for capacitive touch, and nanoWatt XLP sleep modes that drop supply current into the nanoamp range. ECAN hardware accelerates CAN 2.0A/B frame handling, freeing the CPU from bit-banging. The device uses a modified Harvard architecture with a 16-bit instruction word and 8-bit data path, plus an 8x8 hardware multiplier and 16x16 accumulator that accelerates DSP-style math without a separate DSP engine. EEPROM emulation is supported via Flash self-write, and the ICSP interface allows in-circuit programming and debugging. Typical applications include CAN-based automotive body controllers, building automation gateways, elevator control panels, industrial sensor nodes, capacitive touch user interfaces, and low-power remote sensor stations. The combination of ECAN, XLP sleep, and 12-bit ADC makes the PIC18F45K80 particularly attractive for distributed nodes that sleep most of the time and wake briefly to transmit. When designing with this part, place a 100 nF decoupling capacitor as close as possible to each VDD/VSS pair, and follow Microchip AN1229 (Low-Power Design Guide) for sleep current budgeting. Note that the -I/P industrial variant is pin-compatible with the -E/P extended temperature grade but specified only to +85 C, not +125 C. This page synthesizes distributor pricing, drop-in package-compatible alternatives, and practical design notes that go beyond what is in the bare Microchip datasheet, including same-package variants and the closest cross-brand 8-bit MCUs that fit the same 40-pin PDIP footprint.

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PIC18F45K80-I/PT - 8-bit 64MHz MCU 32KB Flash ECAN 44-TQFP | Microchip
PIC18F45K80-I/PT

PIC18F45K80-I/PT - 8-bit 64MHz MCU 32KB Flash ECAN 44-TQFP | Microchip

The Microchip Technology PIC18F45K80-I/PT is an 8-bit PIC microcontroller in the PIC18F K80 family featuring integrated ECAN, nanoWatt XLP extreme low-power technology, 32 KB of Flash program memory, 3.6 KB of RAM, and a 12-bit ADC with CTMU, housed in a 44-pin TQFP package. It runs at up to 64 MHz (16 MIPS) over a 1.8 V to 5.5 V supply range, targeting automotive, building-control, and elevator-control applications where low sleep current and CAN connectivity are required. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, a Flash program store, on-chip RAM, peripherals (timers, ADC, communication controllers), and a CPU that executes one instruction per cycle. PIC18F devices extend the baseline PIC16 architecture with a 16-bit instruction word, hardware multiply, linear code space, and C-friendly peripheral sets, making them a frequent choice for cost-sensitive embedded control in the PIC microcontroller family -> 8-bit MCU -> microcontroller -> embedded IC hierarchy. Key features include 32 KB Flash (16K x 16), 4 KB RAM, 1 KB EEPROM, 10-bit ADC plus dedicated 12-bit ADC channels, three ECAN modules with DMA, seven CCP/ECCP modules, four 8/16-bit timers, two MSSP (I2C/SPI) ports, two USART modules, and nanoWatt XLP sleep currents below 100 nA in selected modes. The 44-pin TQFP (10x10 mm) provides up to 35 digital I/O pins plus 12 analog-capable pins. The K80 architecture pairs a RISC-style PIC18 core with Microchip's eXtreme Low-Power techniques (deep sleep, low-power Timer1, internal 16 MHz HFINTOSC) and an on-chip Charge Time Measurement Unit (CTMU) used for capacitive touch, temperature scanning, and time-of-flight-style measurements. Hardware ECAN 2.0B with DMA offloads message filtering from the core, freeing CPU bandwidth for application logic. Typical applications include automotive body and chassis ECAN nodes, building automation and elevator controllers, industrial CAN nodes, capacitive-touch human interfaces using CTMU, and low-power battery-backed sensor hubs. The wide 1.8 V to 5.5 V range also supports USB-less 5 V designs and single-cell Li-ion (3.7 V nominal) platforms without level shifters. When designing with this part, allocate one ECAN module to the bus, reserve the CTMU for touch or analog scanning, and budget Flash for bootloader plus application. For automotive deployments, choose the -I/PT industrial grade or upgrade to the AEC-Q100-qualified PIC18F46K80 family variant when required. This page consolidates distributor pricing, drop-in replacement guidance, and design notes that are not collated in the manufacturer datasheet, accelerating sourcing and board bring-up.

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PIC18F45K80T-I/ML - 8-Bit 64MHz MCU w/ ECAN & 32KB Flash | Microchip
PIC18F45K80T-I/ML

PIC18F45K80T-I/ML - 8-Bit 64MHz MCU w/ ECAN & 32KB Flash | Microchip

The Microchip Technology PIC18F45K80T-I/ML is a high-performance 8-bit RISC microcontroller from the PIC18F K80 family with integrated ECAN, 32 KB (16K x 16) of Flash program memory, 3.6 KB of data RAM, and 1 KB of EEPROM, packaged in a 44-pin VQFN (8 mm x 8 mm) with an exposed thermal pad. It executes instructions at 64 MHz (16 MIPS) across a 1.8 V to 5.5 V operating range and integrates nanoWatt XLP extreme low-power technology for sleep currents suitable for battery-backed and energy-harvesting designs. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, working RAM, and a rich set of digital and analog peripherals in one IC. The PIC18F family uses an enhanced Harvard RISC architecture with separate program and data buses, allowing instruction fetch and operand read in the same cycle. Within the broader taxonomy, the PIC18F45K80 sits under 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. ECAN is Microchip's enhanced implementation of the Controller Area Network (CAN) bus protocol originally specified by Bosch ISO 11898, widely used in automotive and industrial networks. Key features include an integrated 12-bit ADC with up to 11 channels, a CTMU (Charge Time Measurement Unit) for capacitive touch and time-of-flight measurements, three 16-bit timers, two MSSP (SPI/I2C) ports, two Enhanced USART modules (one with ECAN), and a 16-bit Enhanced PWM with up to 4 channels. The device supports 35 digital I/O lines and operates from -40 C to +85 C (industrial grade). The PIC18F45K80T-I/ML is used in automotive body and comfort modules, building control (HVAC, lighting, elevators), industrial automation nodes, and CAN-bus sensor interfaces where ECAN peripheral, 12-bit ADC accuracy, and XLP sleep current below 100 nA together reduce BOM cost. Compared with discrete microcontroller + external CAN controller designs, integrating ECAN saves PCB area, lowers BOM cost, and simplifies firmware drivers through Microchip's free MPLAB X IDE and XC8 toolchain. When designing with this part, place a 100 nF decoupling capacitor as close as possible to each VDD/VSS pair, tie the exposed thermal pad to a clean ground plane for thermal and electrical performance, and use the internal LDO or external regulator carefully because the wide 1.8 V to 5.5 V range allows direct Li-ion or 3.3 V system supply.

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PIC18F45K80T-I/PT - 8-bit 64MHz MCU 32KB Flash ECAN 44-TQFP
PIC18F45K80T-I/PT

PIC18F45K80T-I/PT - 8-bit 64MHz MCU 32KB Flash ECAN 44-TQFP

The Microchip Technology PIC18F45K80T-I/PT is a high-performance 8-bit PIC18 microcontroller featuring an integrated ECAN (Enhanced Controller Area Network) module, nanoWatt XLP (eXtreme Low Power) technology, and 32KB (16K x 16) of Flash program memory in a 44-pin TQFP (10x10 mm) package. Key features include a 64MHz internal oscillator, 35 digital I/O pins, 3.6KB of SRAM data memory, 1KB of EEPROM, a 12-bit ADC with Charge Time Measurement Unit (CTMU), and an operating voltage range of 1.8V to 5.5V. The device executes instructions at 16 MIPS (Million Instructions Per Second) under typical conditions. The PIC18F45K80 belongs to Microchip's PIC18 XLP 18K family, which is a subfamily of 8-bit microcontrollers within the broader PIC microcontroller taxonomy (PIC microcontroller -> MCU -> microprocessor -> semiconductor). The XLP designation indicates nanoWatt technology with sleep currents measured in nanoamps, making this family well-suited to battery-powered and energy-harvesting designs. The integrated ECAN module supports CAN 2.0B with six programmable receive/transmit buffers and three dedicated transmit buffers, eliminating the need for an external CAN controller in automotive and industrial networked applications. Typical applications include automotive body and chassis ECAN nodes, building climate and elevator controllers, industrial sensor nodes, and battery-powered remote monitoring with CAN connectivity. The 1.8V minimum supply voltage allows operation directly from a single lithium cell across most of its discharge curve, while 5.5V tolerance supports industrial 5V rails. Designers should note that the PIC18F45K80T-I/PT is the tape-and-reel (T) and industrial temperature (-I/-40C to +85C) variant. Pin-compatible family members with different flash densities, temperature grades, and packaging options are available for cost optimization. The microcontroller requires MPLAB X IDE and a compatible programmer such as PICkit or ICD for firmware development.

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PIC18F45Q10-E/P - 8-Bit 64MHz 32KB FLASH 40-PDIP MCU | Microchip
PIC18F45Q10-E/P

PIC18F45Q10-E/P - 8-Bit 64MHz 32KB FLASH 40-PDIP MCU | Microchip

The Microchip Technology PIC18F45Q10-E/P is an 8-bit PIC microcontroller in the PIC18F2x/4x/5xQ10 family, integrating 32KB of FLASH program memory, 64MHz maximum CPU clock, and 5V operation in a 40-pin PDIP through-hole package. The Q10 family targets robust, real-time control and sensor-node applications, providing 5V-tolerant I/O for higher noise immunity compared to typical 3.3V MCUs. Background: A microcontroller (MCU) is an integrated circuit that combines a CPU core, non-volatile program memory (FLASH/ROM), volatile data memory (RAM), and a rich set of peripheral blocks (timers, ADC, communication interfaces) on a single silicon die. Within the MCU taxonomy, the PIC18F45Q10 belongs to the 8-bit family (PIC18 core) > enhanced mid-range with nanoWatt XLP power management > PIC18-Q10 sub-family > 40-pin variants. The Functional Safety (FuSa) family designation signals that the device includes diagnostics and documentation suitable for IEC 60730 class B safety functions in household appliances. Key features of the PIC18F45Q10 include a 10-bit ADC with Computation (ADC2) supporting averaging, filtering, and Capacitive Voltage Divider (CVD) for touch sensing, Configurable Logic Cells (CLCs) for hardware-level glue logic, Complementary Waveform Generator (CWG) with auto-shutdown, and multiple Core-Independent Peripherals (CIPs) such as EUSART, MSSP (I2C/SPI), and 16-bit PWM with multiple capture/compare channels. The device operates from 1.8V to 5.5V (F-version, extended) and is offered in the -40C to +125C extended industrial temperature range, denoted by the -E suffix. The PIC18F45Q10 uses an enhanced Harvard architecture with a 16-bit instruction word and an 8-bit data path, executing most instructions in one instruction cycle (4 clock periods). Internal oscillator flexibility (32kHz-64MHz HFINTOSC), programmable PLL, and nanoWatt XLP sleep modes (< 100 nA typical) make the part attractive for battery- or energy-harvesting sensor nodes where quiescent draw dominates the energy budget. Typical applications include industrial control sensor nodes, consumer appliances requiring IEC 60730 class B functional safety (white goods, washing machines, dishwashers), touch-sensing human-machine interfaces using the CVD peripheral, low-power IoT end-nodes with sleep duty cycling, and small motor-driver companions with the CWG and PWM peripherals. The 5V I/O is also valued for retrofitting legacy 5V systems. When designing with this device, allocate decoupling capacitors (100 nF per VDD pin, plus a bulk 10 uF) close to the IC, route MCLR with proper pull-up, and reserve an ICSP header on the PCB for in-circuit programming and debugging. The Q10 family's CIPs can offload tasks traditionally handled in firmware, reducing CPU wake-up frequency. This page synthesizes distributor pricing, drop-in alternatives, design notes, and AEO-optimized FAQ not found in the manufacturer datasheet alone, providing engineers and procurement teams a single reference for part selection.

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PIC18F45Q10-E/PT - 32KB Flash 8-bit MCU w/ DAC, 44-TQFP | Microchip
PIC18F45Q10-E/PT

PIC18F45Q10-E/PT - 32KB Flash 8-bit MCU w/ DAC, 44-TQFP | Microchip

The Microchip Technology PIC18F45Q10-E/PT is an 8-bit high-performance PIC microcontroller built on the enhanced PIC18 RISC core, delivering 32 KB of Flash program memory, 2 KB of SRAM and 256 bytes of EEPROM in a 44-pin TQFP package. The device integrates a 10-bit ADC with up to 35 analog channels, a 5-bit DAC, configurable logic cells (CLCs), complementary waveform generator (CWG), and peripherals such as PWM, HLVD, WWDT, SCAN and CRC for embedded safety. A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, volatile data memory and peripheral interfaces on one die. The PIC18 family belongs to the 8-bit MCU category, which sits under the broader taxonomy of microcontrollers -> embedded processors -> semiconductors. PIC18 devices use a RISC-style modified Harvard architecture and Microchip's eXtreme Low Power (XLP) technology, giving the PIC18F45Q10 class-leading active and sleep current consumption for battery-powered sensor nodes. Key features include 64 MHz operation (16 MIPS), 5V operation for increased noise immunity in industrial environments, peripheral pin select (PPS) for flexible I/O mapping, and Core Independent Peripherals (CIPs) that offload tasks from the CPU. The integrated CLCs let designers implement custom combinational/sequential logic in hardware without external gates, while the CWG simplifies dead-band control for half-bridge and full-bridge power switching. Typical applications include industrial sensor nodes, home appliances, IoT edge devices, motor control interfaces, touch-sensing front panels and automotive body modules. The 5V-tolerant I/O and wide operating temperature range (-40C to +125C) make it equally at home in noisy factory floors and consumer products. When designing with the PIC18F45Q10-E/PT, ensure that the ICSP programming header is accessible on the PCB, route the VCAP pin with a low-ESR 1uF-10uF capacitor, and leverage the PPS feature to remap peripherals only when required to avoid silicon errata conflicts.

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PIC18F45Q10-I/MP - 64MHz 8-bit MCU, 32KB Flash, 40-QFN | Microchip
PIC18F45Q10-I/MP

PIC18F45Q10-I/MP - 64MHz 8-bit MCU, 32KB Flash, 40-QFN | Microchip

The Microchip Technology PIC18F45Q10-I/MP is an 8-bit PIC XLP microcontroller with 32KB Flash, 2KB RAM, and 256B EEPROM, operating at up to 64MHz in a 40-pin QFN (5x5) package with exposed pad. It integrates intelligent analog peripherals including a 10-bit ADC with Computation (ADCC), a 5-bit DAC, and configurable logic cells (CLC), all designed for robust real-time control and sensor node applications. An 8-bit microcontroller (MCU) is a programmable integrated circuit that combines a CPU, non-volatile program memory, working RAM, and a set of on-chip peripherals around a compact instruction set. 8-bit MCUs sit at the bottom of the microcontroller hierarchy (4-bit -> 8-bit -> 16-bit -> 32-bit) and are valued for deterministic behavior, low power draw, and ease of use in cost-sensitive embedded designs. The PIC18F45Q10 family belongs to the broader power management / MCU hierarchy: microcontroller -> embedded controller -> semiconductor IC, and is specifically targeted at industrial, consumer, automotive, touch sensing and IoT endpoints. Key features include 64MHz CPU speed, 32KB self-programmable Flash, 1.2KB data EEPROM emulation via Flash, hardware 10-bit PWM, Complementary Waveform Generator (CWG), Windowed Watchdog Timer (WWDT), and a Cyclic Redundancy Check (CRC/SCAN) module with memory self-scan. The part supports 5V operation for increased noise immunity in harsh environments. Core-independent peripherals such as CLC let engineers implement custom hardware glue logic without burdening the CPU. Typical applications include industrial control loops, low-power IoT sensor nodes, capacitive touch sensing front-ends, automotive body and lighting modules, and consumer appliances. The wide 2.3V to 5.5V VDD range allows direct interfacing to 5V analog signals and 3.3V digital rails from a single supply. When designing with this device, allocate the QFN exposed pad to a continuous ground pour to meet thermal resistance and signal-integrity targets. The PIC18F45Q10 supports MPLAB X IDE with the free XC8 compiler, and the PICkit or Snap programmer can be used for in-circuit debug. This page synthesizes distributor pricing, drop-in PIC18 Q10 family alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC18F45Q10-I/P - 32KB Flash 8-bit MCU 64MHz 40-PDIP | Microchip
PIC18F45Q10-I/P

PIC18F45Q10-I/P - 32KB Flash 8-bit MCU 64MHz 40-PDIP | Microchip

The Microchip Technology PIC18F45Q10-I/P is a 32KB Flash, 8-bit PIC18 XLP microcontroller running up to 64 MHz in a 40-pin PDIP through-hole package. It integrates 2KB SRAM, 1KB EEPROM, 5V operation for noise immunity, intelligent analog peripherals, and Functional Safety (FuSa) capability for safety-critical systems. The PIC18F45Q10 belongs to the PIC18 family of 8-bit microcontrollers (MCUs) within Microchip's broader PIC® architecture hierarchy. An 8-bit MCU executes instructions on 8-bit data paths and is the workhorse of embedded control for cost-sensitive, deterministic real-time applications. PIC18 devices extend the baseline and mid-range PIC cores with 16-bit instructions, hardware multiplier, and C-optimized architecture, enabling efficient high-level language development while retaining deterministic interrupt response. Key features of this part include a 64 MHz internal oscillator, up to 64 MHz CPU clock with 4x PLL option, 35 instruction set, 10-bit ADC with Computation (ADCC) automating averaging and threshold comparison, 5-bit DAC, 2 analog comparators with selectable hysteresis, Configurable Logic Cells (CLC) for hardware state-machine peripherals, Complementary Waveform Generator (CWG), and Peripheral Pin Select (PPS) for flexible signal routing. Functional Safety (FuSa) diagnostics make it suitable for IEC 61508 SIL-2 capable designs when used with the supporting FMEDA and diagnostic libraries. Typical applications include industrial sensor nodes, household appliances, motor control, lighting ballasts, IoT edge nodes, automotive body and chassis subsystems, HVAC controllers, and any real-time control loop where deterministic behavior, low power, and 5V noise immunity are required. The 32KB Flash supports moderate firmware footprints typical of connected sensor firmware with protocol stacks. When designing with this device, allocate sufficient decoupling (100 nF + 1 µF near each supply pin), use the ICSP™ header for in-circuit programming, and follow Microchip AN1255 for Class B / IEC 60730 safety diagnostics on white goods. The wide 2.3V-5.5V VDD range supports both 3.3V and 5V systems, but power-on reset thresholds differ at each range.

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PIC18F45Q10-I/PT - 32KB Flash 8-bit MCU, 64MHz, 44-TQFP
PIC18F45Q10-I/PT

PIC18F45Q10-I/PT - 32KB Flash 8-bit MCU, 64MHz, 44-TQFP

The Microchip Technology PIC18F45Q10-I/PT is an 8-bit PIC18 XLP® microcontroller delivering 64 MHz CPU performance from 32 KB of Flash, 2 KB of SRAM, and 256 bytes of EEPROM in a 44-pin TQFP (10x10 mm) package. The part belongs to the PIC18-Q10 Functional Safety (FuSa) family, which combines eXtreme Low Power (XLP) operation with 5 V tolerance for increased noise immunity in industrial and automotive sensor-node applications. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O on one die. Within the broader taxonomy, the PIC18F45Q10 sits in the 8-bit microcontroller category, which itself belongs to the embedded microcontroller / system-on-chip / semiconductor device hierarchy. The 8-bit PIC architecture offers deterministic instruction execution, single-cycle hardware multiply, and a C-optimized instruction set, which simplifies real-time control firmware while keeping BOM cost low. Key features of the PIC18F45Q10 include integrated intelligent analog with a 10-bit ADC (up to 35 channels), a 5-bit/10-bit DAC, configurable logic cells (CLCs), complementary waveform generators (CWG), high-resolution PWM with fine-edge placement, hardware limit timer (HLT), windowed watchdog timer (WWDT), and a CRC/SCAN module for functional safety diagnostics. Operating voltage spans 2.3 V to 5.5 V with 5 V tolerant digital I/O, supporting noisy industrial 24 V / 5 V regulated rails and direct interface to 5 V sensors. The device architecture uses a Harvard RISC core with separate program and data buses, hardware multiplier, and 31-level priority interrupt controller. The combination of CIPs (Core Independent Peripherals) and CLCs allows event-driven logic without CPU intervention, enabling predictable real-time response with reduced firmware complexity. Typical applications include industrial sensor interfaces, brushless DC fan or pump controllers, automotive body and sensor nodes, touch-sensing user interfaces, IoT edge nodes, and consumer appliances. The PIC18F45Q10 is also a strong fit where functional safety (IEC 60730 class B) is required in home appliances and white goods. When designing with this device, place a 100 nF decoupling capacitor close to each VDD/VSS pair and use the internal voltage regulator with a bulk capacitor on VDD/VBAT to meet inrush requirements. For low-noise analog, group ADC-capable pins on a quiet ground plane and avoid routing switching signals underneath. XLP sleep currents below 50 nA (typical) enable battery-backed sensor nodes that wake on interrupt. This page synthesizes distributor pricing, drop-in 44-TQFP alternatives, and practical design notes not found in the manufacturer datasheet. For drop-in substitution in the same 44-TQFP footprint, see the alternatives section.

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PIC18F45Q10T-I/MP - 32KB Flash 8-bit MCU, 64MHz, 40-QFN | Microchip
PIC18F45Q10T-I/MP

PIC18F45Q10T-I/MP - 32KB Flash 8-bit MCU, 64MHz, 40-QFN | Microchip

The Microchip Technology PIC18F45Q10T-I/MP is an 8-bit PIC18 XLP eXtreme Low-Power microcontroller with 32KB Flash, 2KB RAM, and 256B EEPROM, running at up to 64MHz in a 40-pin QFN (5x5 mm) package with exposed pad. It integrates 10-bit ADC2, 5-bit/8-bit DAC, PWM, CWG, HLT, WWDT, and SCAN/CRC peripherals and is qualified for Functional Safety (FuSa) applications. A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory (Flash), data memory (RAM), and integrated peripherals such as ADC, timers, and communication controllers. Within the broader semiconductor hierarchy, an MCU sits between microprocessors (MPUs, which require external memory) and application-specific integrated circuits (ASICs); the 8-bit PIC18 family specifically targets deterministic, real-time control with low power consumption and rich on-chip analog. Key differentiating features include 5V operation for increased noise immunity in industrial environments, the eXtreme Low-Power (XLP) architecture with sleep currents in the nanoamp range, Core Independent Peripherals (CIPs) such as CLC, CWG, and Numerically Controlled Oscillator (NCO), and Functional Safety documentation support for IEC 61508 SIL-3 / IEC 60730 Class B designs. The device supports 1.8V-5.5V operation (with 5V tolerant digital pins) and integrates 36 I/O lines. Architecturally, the PIC18F45Q10 uses a Harvard RISC core with single-cycle execution at 64MHz (16 MIPS), hardware Multiply and Divide, and a 16-level hardware stack. The integrated intelligent analog block includes ADC2 with computation, dual comparators, a Fixed Voltage Reference (FVR), and zero-cross detection, reducing external component count and BOM cost. Typical applications include industrial sensor nodes, low-power IoT end nodes, home appliances (white goods), automotive body and interior modules, motor control (BLDC, stepper, fan), and Functional Safety household appliances. The wide 1.8V-5.5V range and 5V tolerance make it well suited for 3.3V and 5V mixed systems. When designing with this device, ensure the exposed pad (EP) on the 40-QFN package is soldered to a sufficient ground copper pour for thermal dissipation (theta-JA around 28 C/W). For Functional Safety designs, use the supplied FMEDA, safety manual, and diagnostic libraries from Microchip to accelerate IEC 61508 / IEC 60730 certification. This page synthesizes distributor pricing, drop-in alternatives from the PIC18-Q10 family, and practical design notes for 8-bit real-time control not found in the manufacturer datasheet alone.

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PIC18F45Q10T-I/PT - 8-bit 64MHz MCU, 32KB Flash, 44-TQFP | Microchip
PIC18F45Q10T-I/PT

PIC18F45Q10T-I/PT - 8-bit 64MHz MCU, 32KB Flash, 44-TQFP | Microchip

The Microchip PIC18F45Q10T-I/PT is an 8-bit PIC18 RISC microcontroller operating up to 64 MHz with 32 KB of Flash program memory, 2 KB of RAM, and 256 bytes of EEPROM, housed in a 44-pin TQFP (10x10 mm) package. It integrates intelligent analog peripherals, configurable logic, and functional-safety features, making it a low-power, high-performance member of the PIC18 Q10 family. The device is supplied on tape and reel (T/R) for high-volume SMT assembly. An 8-bit microcontroller (MCU) is a compact programmable processor that integrates a CPU, memory, and peripherals on a single silicon die. MCUs sit within the broader taxonomy: microcontroller -> embedded processor -> semiconductor IC. The PIC18F45Q10 belongs to Microchip's enhanced 8-bit PIC18 family, which uses a RISC Harvard architecture with separate program and data buses, achieving single-cycle instruction execution at up to 64 MHz. Key features of this device include 36 digital I/O pins, a 10-bit ADC with up to 35 analog inputs, a 5-/10-bit DAC, multiple PWM modules, a Configurable Logic Cell (CLC), Complementary Waveform Generator (CWG), Hardware Limit Timer (HLT), Windowed Watchdog Timer (WWDT), and Cyclic Redundancy Check with memory scan (SCAN/CRC) for functional safety. The 1.8 V to 5.5 V operating range supports battery-powered and 5 V industrial designs, while XLP (eXtreme Low Power) technology delivers sub-uA sleep currents for IoT endpoints. The architecture uses an 8-bit data path with a 16-bit instruction word, a 31-level hardware stack, and interrupt-driven I/O. Integrated peripherals are routed through Microchip's Peripheral Pin Select (PPS) system, allowing flexible reassignment of digital functions to physical pins without rewiring the PCB. The integrated Core Independent Peripherals (CIPs) - CLC, CWG, HLT, NCO, and PWM - offload timing-critical tasks from the CPU, enabling deterministic real-time control in sensor-node and motor-control applications. Typical applications include industrial sensor nodes, real-time closed-loop control, BLDC and stepper motor drivers, IoT edge devices, low-power battery monitoring, automotive body and lighting modules, and functional-safety subsystems. The wide 1.8 V to 5.5 V supply range is especially valuable in 5 V noisy industrial environments where higher-voltage rails improve noise immunity. Designers should budget PCB area for the 44-pin TQFP (10x10 mm) footprint and confirm peripheral pin mapping using MPLAB X IDE with MCC. For functional-safety designs, the on-die CRC/Scan feature simplifies IEC 61508 SIL 2 compliance for industrial sensors. This page combines distributor pricing, drop-in alternatives, and practical design guidance not found in the manufacturer datasheet - optimized to give engineers an at-a-glance procurement and replacement decision.

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PIC18F45Q43-E/P - 64MHz 8-Bit MCU, 32KB Flash, 40-PDIP | Microchip
PIC18F45Q43-E/P

PIC18F45Q43-E/P - 64MHz 8-Bit MCU, 32KB Flash, 40-PDIP | Microchip

The Microchip Technology PIC18F45Q43-E/P is a high-performance 8-bit PIC microcontroller from the PIC18-Q43 family, featuring a 64 MHz CPU and 32 KB of on-chip Flash program memory in a 40-pin PDIP through-hole package. According to the Microchip PIC18F25/45/55Q43 datasheet, the part integrates 2 KB of SRAM, a 12-bit ADC with Computation (ADCC) supporting capacitive voltage divider (CVD) touch sensing, six DMA controllers, configurable logic cells (CLCs), three 16-bit dual PWMs providing six PWM outputs, five UARTs, and vectored interrupt hardware. The wide operating voltage range of 1.8 V to 5.5 V combined with XLP (eXtreme Low Power) technology enables battery-friendly applications. An 8-bit PIC microcontroller is a Harvard-architecture RISC device that executes most instructions in a single cycle, optimized for deterministic real-time control and low-power embedded designs. Within the broader taxonomy, the PIC18F45Q43 sits at the intersection of: PIC18 family -> PIC MCU -> 8-bit microcontroller -> microcontroller unit (MCU) -> embedded processing IC. The PIC18-Q43 sub-family specifically targets modern real-time control by combining legacy PIC18 simplicity with Core Independent Peripherals (CIPs) that offload hardware tasks from the CPU. Key differentiating features of the PIC18F45Q43-E/P include the 12-bit ADCC with hardware averaging/filtering/threshold comparison, six independent DMA channels that move data without CPU intervention, and CLCs that let designers build custom logic gates and state machines in silicon. The vectored interrupt controller provides fixed interrupt latency of three instruction cycles, critical for deterministic motor control and power-conversion firmware. XLP technology provides deep-sleep currents down to the nanoampere range with retention RAM, extending battery life in always-on IoT nodes. Typical applications include industrial sensor signal conditioning, BLDC/PMSM motor control (where the 6 PWM outputs drive a 3-phase inverter), capacitive touch HMI panels, multi-protocol wired sensor hubs, and automotive body modules using the -E (extended) -40 °C to +125 °C temperature grade. The 36 I/O pins and rich peripheral mix let a single chip replace an MCU plus several external logic ICs. When designing with this part, note that programming/debug requires a dedicated ICSP interface (PGECx/PGEDx); the 40-pin PDIP variant is ideal for through-hole prototypes and is the package of choice when hand-soldering or breadboarding is required.

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PIC18F45Q43-I/MP - 8-bit 64MHz 32KB Flash XLP MCU | Microchip
PIC18F45Q43-I/MP

PIC18F45Q43-I/MP - 8-bit 64MHz 32KB Flash XLP MCU | Microchip

The Microchip Technology PIC18F45Q43-I/MP is an 8-bit PIC18 XLP microcontroller running up to 64MHz with 32KB Flash, 2KB SRAM and 1KB EEPROM, supplied from 1.8V to 5.5V. It is housed in a 40-pin QFN package (MP, 5x5 mm) with an exposed thermal pad, integrating Core Independent Peripherals (CIPs) such as a 12-bit ADC with Computation (ADCC), an 8-bit DAC, three 16-bit PWMs with dual outputs, six-channel DMA, ZCD, CWG, HLT, WWDT, and SCAN/CRC for hardware-driven real-time control. An 8-bit microcontroller is a CPU that processes data 8 bits per cycle and is widely used in real-time embedded applications where deterministic latency, low power, and rich on-chip peripherals matter more than raw compute throughput. Within the broader taxonomy, PIC microcontrollers occupy the 8-bit MCU segment, and the PIC18F family represents Microchip's enhanced mid-range core featuring a hardware multiplier, C-compiler-friendly architecture, and linear memory addressing. The Q43 sub-family is positioned for analog-rich, hardware-customizable designs and supersedes earlier Q10/K42 generation devices. Key features include a 12-bit ADCC supporting Capacitive Voltage Divider (CVD) for touch sensing, configurable logic cells (CLC) for custom digital glue logic, three independent 16-bit PWMs each offering dual outputs on the same time base, and XLP (eXtreme Low Power) technology delivering sub-microamp sleep currents. The device also integrates an 8-bit DAC, multiple UART/SPI/I2C instances, a 32KB self-programmable Flash and a unique Peripheral Pin Select (PPS) routing matrix for flexible signal mapping. Architecturally, the PIC18F45Q43 uses a modified Harvard bus with a 16-bit instruction word and 8-bit data path, achieving approximately 16 MIPS at 64MHz. The CIP block approach lets analog, timing, and communication tasks run in hardware without CPU intervention, offloading the core in real-time control loops and reducing firmware complexity. Typical applications include capacitive touch user interfaces, BLDC and DC motor/fan control, LED lighting drivers, IoT sensor nodes, and industrial control subsystems. The wide operating voltage and rich peripheral set make it well suited for 24V industrial bus systems running from simple linear regulators. When designing with this MCU, always configure PPS before enabling peripherals, keep traces short for the high-speed 16-bit PWM outputs, and stitch adequate ground copper under the QFN thermal pad. Industrial designs must observe the -40C to +85C industrial temperature grade. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes that complement - not duplicate - the manufacturer datasheet, helping engineers select and qualify the PIC18F45Q43-I/MP for production.

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PIC18F45Q43-I/P - 8-Bit 64MHz 32KB Flash MCU 40-PDIP | Microchip
PIC18F45Q43-I/P

PIC18F45Q43-I/P - 8-Bit 64MHz 32KB Flash MCU 40-PDIP | Microchip

The Microchip Technology PIC18F45Q43-I/P is an 8-bit PIC microcontroller from the PIC18-Q43 family running at 64 MHz, equipped with 32 KB of Flash program memory, 2 KB of RAM, and 1 KB of EEPROM in a 40-pin PDIP through-hole package. It integrates six Direct Memory Access (DMA) controllers, three 16-bit dual PWMs (six PWM outputs), a 12-bit Analog-to-Digital Converter with Computation (ADCC) supporting Capacitive Voltage Divider (CVD), a 5-bit DAC, comparators, and Configurable Logic Cells (CLCs), delivering sophisticated hardware customization with minimal CPU load. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, non-volatile program memory (Flash), peripherals, and I/O on one die, optimized for embedded control applications where deterministic behavior, low cost, and low power matter more than raw throughput. The PIC18F belongs to Microchip's PIC18 advanced 8-bit architecture family, which targets real-time control and connectivity in a wide range of consumer, industrial, and automotive subsystems. Within that hierarchy, the PIC18-Q43 sub-family (PIC18 → PIC18F → PIC18F-Q43 → PIC18F45Q43) is positioned for advanced hardware-customization designs that need DMA, CLCs, and high-resolution PWM without resorting to a 16-bit or 32-bit MCU. Key features include 64 MHz operation from up to 64 MHz internal oscillator, six DMA channels, three 16-bit PWMs, five UART modules (one supporting LIN/DMX/DALI), two SPI/I2C peripherals, the ADCC with hardware averaging/oversampling, zero-cross detect (ZCD), a fixed voltage reference (1.024/2.048/4.096 V), Windowed Watchdog Timer (WWDT), Cyclic Redundancy Check (CRC/SCAN) module, and 36-level interrupt vectoring for low-latency response. Typical applications include capacitive touch user interfaces, lighting controls, motor control (BLDC/PMSM via FOC), USB-to-UART bridges, industrial sensor hubs, and low-power battery-powered IoT endpoints where XLP (eXtreme Low Power) sleep current extends battery life. Design trade-off: choose the 40-PDIP (PIC18F45Q43-I/P) for through-hole prototyping, educational breadboarding, and socketed designs; choose the 44-TQFP (PIC18F45Q43-I/PT) when moving to surface-mount production with the same die. This page synthesizes distributor pricing, drop-in alternatives selected from Microchip's same-family portfolio and cross-brand sources, and practical design notes not found in the manufacturer datasheet alone.

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