Microcontroladores

Productos (18756)

PIC18F66K22-I/MRRSL - 8-bit MCU, 64KB Flash, 64MHz, 64-pin QFN | Microchip
PIC18F66K22-I/MRRSL

PIC18F66K22-I/MRRSL - 8-bit MCU, 64KB Flash, 64MHz, 64-pin QFN | Microchip

The Microchip Technology PIC18F66K22-I/MRRSL is an 8-bit PIC18 enhanced-flash microcontroller featuring 64 KB of Flash program memory (32K x 16), 4 KB of RAM, and 1 KB of EEPROM, running at up to 64 MHz internal clock in a 64-pin QFN (MR) package with exposed pad. Operating from 1.8 V to 5.5 V with nanoWatt XLP technology for ultra-low-power sleep current, this MCU combines high-performance RISC execution (200 ns instruction cycle) with on-chip peripherals including 12-bit ADC, mTouch capacitive touch via CTMU, multiple PWM/ECCP modules, USB, CAN, and three SPI/I2C/UART interfaces. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path with integrated CPU, Flash program memory, RAM, EEPROM, and peripherals. Within the semiconductor hierarchy it sits under microcontrollers, which sit under integrated circuits (ICs). The PIC18 family uses a RISC architecture with hardware multiplier, 31-level stack, and 16-bit instructions, sitting above baseline PIC10/12/16 parts in performance while remaining C-friendly through the MPLAB XC8 toolchain. Key differentiating features of the PIC18F66K22 include 54 digital I/O lines, a 12-bit A/D converter with up to 16 channels, an 8-bit DAC, hardware CTMU for capacitive touch sensing, four 16-bit timers, three comparators, two ECCP and three CCP PWM modules, plus integrated USB 2.0 full-speed and CAN 2.0B peripherals. The XLP variant achieves nanoamp sleep currents, extending battery life in energy-harvesting and IoT edge nodes. The device is fabricated in a low-power CMOS process with internal oscillator flexibility (31 kHz to 16 MHz HF, plus PLL to 64 MHz). Its wide 1.8-5.5 V range simplifies designs migrating between 3.3 V and 5 V rails, and the CTMU peripheral enables robust mTouch capacitive buttons, sliders, and proximity sensing without external components. Typical applications include industrial control and HMI panels, USB/CAN-connected sensor hubs, capacitive touch user interfaces, battery-powered metering, and automotive body/comfort modules. Its 64 KB Flash and 4 KB RAM comfortably support USB stacks and CANopen/J1939 lightweight protocols in 8-bit C code. When designing with this part, budget the QFN exposed pad with a continuous ground plane and thermal vias; without adequate bottom copper the high I/O count pushes junction temperature up under full I/O switching load. The MR package variant is recommended over PT (TQFP) for space-constrained PCBs requiring a smaller footprint with thermal pad soldering. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes that are not collected in any single manufacturer datasheet.

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PIC18F66K22-I/PT - 64KB Flash 8-Bit MCU 64MHz TQFP-64 | Microchip
PIC18F66K22-I/PT

PIC18F66K22-I/PT - 64KB Flash 8-Bit MCU 64MHz TQFP-64 | Microchip

The Microchip Technology PIC18F66K22-I/PT is an 8-bit PIC18 RISC microcontroller with 64 KB Flash, 4 KB RAM, 1 KB EEPROM, and a 64 MHz internal CPU clock, housed in a 64-pin TQFP (10x10 mm) package. It features nanoWatt XLP extreme-low-power technology, a 12-bit A/D converter with up to 16 channels, and a Charge Time Measurement Unit (CTMU) for capacitive touch and accurate time measurement. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path that integrates a CPU, non-volatile program memory (Flash), volatile data memory (RAM), non-volatile data memory (EEPROM), and a rich set of peripherals (timers, ADC, communication ports, I/O). 8-bit MCUs sit within the broader semiconductor hierarchy: microcontroller -> embedded processor -> integrated circuit -> semiconductor device. They remain the workhorse of cost-sensitive, deterministic, low-power embedded designs because their instruction sets, toolchains (MPLAB X, XC8), and code portability are mature and well understood. Key features include up to 53 digital I/O pins, multiple communication peripherals (2x I2C/SPI, 2x UART with LIN, USB 2.0 full-speed), 5 CCP/ECCP modules, two analog comparators, and a 16-bit enhanced timer architecture. The wide 1.8V-5.5V VDD range and nanoWatt XLP modes (sleep current down to the nA range) make the part well suited to battery-powered and energy-harvesting products. The PIC18F66K22-I/PT combines a Harvard-class RISC core with 16-bit wide instructions, hardware multiply, and a C-friendly compiler target. Its CTMU simplifies robust capacitive-touch key implementation, while the 12-bit ADC supports sensor-system health via accurate signal acquisition. Internal oscillator calibration and a wide operating range (-40C to +85C industrial, -40C to +125C extended) address industrial, automotive, and white-goods environments. Typical applications include capacitive-touch human-machine interfaces (HMIs), industrial control modules, USB peripherals, low-power remote sensor nodes, and white-goods / appliance controllers. The combination of USB, multiple UARTs, and PWM channels also suits small motor-control and LED-driver boards. When designing with this part, allocate at least two decoupling capacitors per VDD/AVDD pin (100 nF ceramic + bulk), keep analog and digital grounds separated, and place the 20 MHz external crystal traces short and guarded to minimise jitter on USB and UART baud rates. This page consolidates distributor pricing as of 2026-09-28, drop-in alternative MPNs in the same TQFP-64 footprint, and practical PCB/thermal guidance not always present on a single manufacturer datasheet page.

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PIC18F66K22T-I/MR - 8-bit 64MHz MCU 64KB Flash | Microchip
PIC18F66K22T-I/MR

PIC18F66K22T-I/MR - 8-bit 64MHz MCU 64KB Flash | Microchip

The Microchip Technology PIC18F66K22T-I/MR is an 8-bit PIC18 microcontroller running up to 64 MHz, integrating 64 KB of Flash program memory, 4 KB of SRAM and 1 KB of data EEPROM, housed in a 64-pin VQFN (9x9 mm) package with industrial -40C to +85C operating range. The 'T' suffix indicates Tape & Reel packaging for high-volume SMT assembly, and the 'I' grade denotes the industrial temperature window. A PIC microcontroller (Programmable Interface Controller) is a Harvard-architecture, RISC-based microcontroller that integrates a CPU, non-volatile Flash program memory, working RAM, EEPROM, and a rich peripheral set into a single IC. Microchip's PIC18 family extends the baseline PIC16 instruction set with linear memory addressing and C-friendly extensions, sitting between the 8-bit PIC16 and the 16-bit dsPIC/PIC24 families in the broader microcontroller taxonomy: 8-bit MCU -> PIC18 -> nanoWatt XLP family -> low-power 8-bit PIC microcontroller. Key features of this part include nanoWatt eXtreme Low Power (XLP) technology with deep-sleep currents in the nanoamp range, a 12-bit A/D converter with up to 16 channels, two I2C, two SPI and two USART (LIN-capable) interfaces, the Charge Time Measurement Unit (CTMU) for capacitive touch and simple time-of-flight sensing, and a Parallel Slave Port for external bus expansion. The 64-pin VQFN gives access to the full peripheral count of the PIC18F6xK22 sub-family. The PIC18F66K22 architecture uses a modified Harvard core with a 16-bit instruction word and 8-bit data path. A 31-level hardware stack, indexed and indirect addressing modes, and an 8x8 hardware multiply support efficient C compilation. Internal oscillator blocks can be software-tuned, and the PLL derives the 64 MHz FOSC from a lower-frequency source, enabling both low-power sleep operation and high-throughput active modes. The CTMU is a programmable constant-current source that, combined with the A/D, performs capacitance measurement for touch keys or simple distance sensing. Typical applications include industrial control panels, capacitive touch human-machine interfaces, low-power remote sensor nodes, battery-powered instrumentation, USB/serial bridging using the USART peripherals, and small graphical or segment-display user interfaces. The wide peripheral mix also suits HVAC controllers and home appliances where multiple communication buses and ADC channels must coexist on a single chip. When designing with this device, allocate the VQFN exposed pad (EP) to a solid ground copper pour for thermal dissipation, and follow Microchip's decoupling guidance of a 100 nF ceramic on every VDD/AVDD pair plus a bulk 10 uF near the IC. Programming is supported via ICSP on PGC/PGD, and Microchip's MPLAB X with XC8 provides the canonical toolchain. This page synthesizes distributor pricing, drop-in alternatives from the PIC18 K-series, and practical design notes not collected in any single distributor listing.

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PIC18F66K22T-I/MRRSL - 8-bit 64KB Flash MCU, 64MHz, 64-VQFN | Microchip
PIC18F66K22T-I/MRRSL

PIC18F66K22T-I/MRRSL - 8-bit 64KB Flash MCU, 64MHz, 64-VQFN | Microchip

The Microchip Technology PIC18F66K22T-I/MRRSL is an 8-bit PIC RISC microcontroller with 64KB of Flash program memory, 4KB of RAM, and 64MHz maximum CPU clock speed, supplied in a 64-pin VQFN (QFN-64) exposed-pad package on tape-and-reel. It is qualified to the AEC-Q100 standard for automotive applications and operates from a 2.5V / 3.3V / 5V supply range. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, volatile data memory, and a rich set of peripherals (ADC, timers, communication ports, GPIO) into one device. PIC18F-series MCUs from Microchip sit within the broader taxonomy: 8-bit microcontroller -> embedded controller -> integrated circuit -> semiconductor. The PIC18F family implements an enhanced Harvard RISC architecture with 16-bit instructions optimized for C-compiled code and deterministic interrupt latency, and the 66K22 variant extends this architecture with nanoWatt XLP (eXtreme Low Power) technology and a Charge Time Measurement Unit (CTMU) for capacitive touch sensing. Key features include 64KB Flash program memory, 4KB RAM, 1KB EEPROM, 54 digital I/O pins, 12-bit ADC with up to 16 channels, multiple UART/SPI/I2C peripherals, and nanoWatt XLP sleep currents in the microamp range. The 64-VQFN exposed-pad package offers compact board mounting while the thermal pad provides a low-resistance path for heat dissipation. The PIC18F66K22 implements an enhanced Harvard RISC core with 8-bit data path and 16-bit instruction word, a hardware multiplier, and a vectored interrupt controller. nanoWatt XLP technology provides multiple low-power operating modes (Run, Idle, Sleep, and deep Sleep with RTCC), enabling battery lifetimes measured in years for typical sensor-node duty cycles. The CTMU peripheral can be used for capacitive touch sensing, temperature measurement with external diodes, and precision time-of-flight measurements. Typical applications include automotive body and chassis electronics, capacitive touch user interfaces, battery-powered sensor nodes with XLP modes, industrial control panels with multiple serial interfaces, and consumer appliances requiring low standby power. The AEC-Q100 qualification also makes the part appropriate for under-hood and cabin automotive modules. When designing with this device, route the exposed thermal pad to a continuous ground copper plane and stitch vias beneath the package to minimise thermal resistance and inductance. Decouple VDD and AVSS with 100nF ceramic capacitors placed within 5mm of each supply pin, and follow Microchip's MPLAB Xpress and Curiosity development-board reference layouts when bringing up a new PCB. This page consolidates distributor pricing, pin-compatible PIC18F drop-in alternatives, and practical design guidance not aggregated elsewhere on the web, including notes on CTMU firmware calibration and XLP wakeup latency budgets.

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PIC18F66K22T-I/PT - 64KB Flash 8-bit XLP MCU TQFP-64 | Microchip
PIC18F66K22T-I/PT

PIC18F66K22T-I/PT - 64KB Flash 8-bit XLP MCU TQFP-64 | Microchip

The Microchip Technology PIC18F66K22T-I/PT is a high-performance 8-bit PIC18 microcontroller built on nanoWatt XLP (eXtreme Low Power) technology and offered in a 64-pin TQFP (PT) 10x10 mm package. It integrates 64 KB of Flash program memory (32K x 16), 4 KB of RAM, and 1 KB of EEPROM, while delivering up to 64 MHz CPU performance from a 16 MIPS C-compiler-friendly Harvard architecture. A microcontroller (MCU) is a single-chip computer integrating a CPU core, program and data memory, peripherals, and I/O. The PIC18F family is Microchip's high-performance 8-bit tier and sits within the broader taxonomy: 8-bit MCU -> PIC MCU -> microcontroller -> embedded processor -> semiconductor. nanoWalt XLP technology adds ultra-low-power sleep and run modes that extend battery life in energy-harvested or coin-cell designs. Key features include 54 digital I/O pins, a 12-bit A/D converter with up to 16 channels, two analog comparators, an onboard Charge Time Measurement Unit (CTMU) that simplifies capacitive touch and precise timing applications, multiple Enhanced USART, SPI and I2C peripherals, seven 8/16-bit timers, and a 5-bit DAC. The device operates across 1.8 V to 5.5 V (depending on configuration) and supports industrial temperature grades from -40C to +85C. Architecturally, the PIC18F66K22 uses a 16-bit modified Harvard structure with separate program Flash and data SRAM buses, enabling simultaneous instruction fetch and operand access. The integrated CTMU provides constant-current source/sink capabilities that, paired with the ADC, enable accurate time-of-flight measurement for distance sensing or capacitive touch user interfaces without external components. Typical applications span industrial control panels, building automation, sensor hubs, low-power remote keyless entry, medical instrumentation, USB/HID peripherals, and battery-powered IoT nodes. The combination of XLP deep-sleep current in the nanoamp range, generous I/O count, and the integrated CTMU makes it attractive for power-constrained edge nodes. Designers should evaluate the supplied 1.8 V/3.3 V/5 V operating modes, route AVdd and AVss pins cleanly to preserve ADC SNR, and follow Microchip TB0763 layout guidance for nanoWatt XLP decoupling. The CTMU requires careful calibration against a stable internal or external time base. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet - giving embedded engineers a faster path to BOM validation and second-source qualification.

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PIC18F66K22T-I/PTRSL - 64KB Flash 8-bit XLP MCU | Microchip
PIC18F66K22T-I/PTRSL

PIC18F66K22T-I/PTRSL - 64KB Flash 8-bit XLP MCU | Microchip

The Microchip PIC18F66K22T-I/PTRSL is an 8-bit PIC microcontroller from the PIC18F K-series family, featuring 64KB (32K x 16) of Flash program memory and running at up to 64 MHz internal clock in a 64-pin TQFP (10x10 mm) package. It belongs to Microchip's nanoWatt XLP (eXtreme Low Power) family and is supplied in tape-and-reel packaging with the -I/-40C to +85C industrial temperature grade. The device integrates 4KB RAM, 1KB EEPROM, and 54 digital I/O pins, with on-chip peripherals including a 12-bit ADC, multiple UART/SPI/I2C interfaces, PWM modules, and a Charge Time Measurement Unit (CTMU) for capacitive touch sensing. An 8-bit microcontroller (MCU) is a programmable integrated circuit that combines a CPU, memory (Flash/ROM, RAM, EEPROM), digital I/O, and analog/mixed peripherals on a single silicon die, optimized for embedded control tasks. Within Microchip's portfolio, the PIC18F architecture occupies the mid-to-high performance tier of 8-bit MCUs, sitting above baseline PIC10/12/16 parts and below the dsPIC/PIC32 16-bit and 32-bit families. Within that hierarchy, the PIC18F66K22 belongs to the PIC18F K22 sub-family which is distinguished by nanoWatt XLP ultra-low-power technology, making it well suited for battery-powered and energy-harvesting applications. Key features include 64 MHz maximum CPU clock with up to 16 MIPS throughput, hardware multipliers for efficient arithmetic, an integrated LCD driver, capacitive touch via CTMU, multiple capture/compare/PWM modules, and a wide 1.8V to 5.5V operating voltage range. The XLP technology offers sleep currents below 100 nA typical, and peripheral modules can be selectively disabled to minimize active current. The PIC18F66K22 family uses a 16-bit modified-Harvard architecture with separate program and data buses, allowing simultaneous instruction fetch and data access. Flash program memory is self-programmable under firmware control, supporting in-application updates over UART, I2C, or SPI. On-chip debugging is supported through Microchip's ICD (In-Circuit Debugger) interface using just two I/O pins. Typical applications include capacitive touch user interfaces, battery-powered sensor hubs, LCD-displayed consumer products, industrial control panels, and low-power IoT edge nodes. Designers select the PIC18F66K22 for applications needing 8-bit simplicity with extended RAM/Flash and rich analog peripherals. When designing with this MCU, allocate adequate decoupling (100 nF + bulk cap) near each power pin, keep trace lengths to the ICSP/ICD pins short, and verify the Vdd range for the chosen clock mode. The wide 1.8V-5.5V range simplifies both lithium-battery and USB/5V designs. This page consolidates distributor pricing, drop-in alternatives in the same TQFP-64 footprint, and practical design notes for the PIC18F66K22T-I/PTRSL not found in the manufacturer datasheet.

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PIC18F66K40-E/MR - 64KB Flash, 64MHz 8-bit MCU, 64-VQFN | Microchip
PIC18F66K40-E/MR

PIC18F66K40-E/MR - 64KB Flash, 64MHz 8-bit MCU, 64-VQFN | Microchip

The Microchip Technology PIC18F66K40-E/MR is a high-performance, low-power 8-bit PIC18 microcontroller built on an enhanced RISC architecture with a 64 MHz maximum operating frequency, 64 KB of Flash program memory, 3562 bytes of SRAM, and 1024 bytes of EEPROM, all housed in a 64-pin 9x9 mm VQFN package with exposed pad. The device integrates rich Core Independent Peripherals such as the Configurable Logic Cell (CLC), Complementary Waveform Generator (CWG), Windowed Watchdog Timer (WWDT), and CRC/Memory Scan, enabling hardware-based state-machine control without CPU intervention. What is a PIC18 microcontroller? A PIC18 microcontroller (MCU) is an 8-bit Harvard-architecture RISC microcontroller from Microchip Technology's PIC18 family. PIC18 MCUs sit within the broader hierarchy of microcontrollers -> embedded controllers -> semiconductor ICs, and are widely used in general-purpose embedded designs where deterministic real-time performance, low power consumption, and rich peripheral integration are required. The PIC18F66K40 family specifically targets applications needing large memory, 5V operation, and eXtreme Low Power (XLP) features. Key features of the PIC18F66K40-E/MR include 1.024 KB of EEPROM, an integrated 10-bit ADC with computation, multiple UART/SPI/I2C interfaces, up to 54 digital I/O pins, and a wide 2.3V to 5.5V operating voltage range supporting both 3.3V and 5V systems. The device also includes a 32 MHz internal oscillator, a 16-bit PWM module, and a peripheral pin select (PPS) system for flexible signal routing. Its XLP technology delivers sub-uA sleep currents ideal for battery-powered applications. Architecturally, the PIC18F66K40 uses a 16-bit instruction word with a hardware multiplier and a deterministic 4-clock instruction cycle, providing predictable interrupt latency. The PPS system decouples peripheral pin assignments from the silicon, simplifying PCB layout. The CIP (Core Independent Peripheral) approach enables complex control loops without CPU load, making this MCU well-suited for sensor conditioning, motor control timing, and communication bridging tasks. Typical applications include industrial automation controllers, automotive body electronics (using the related AEC-Q100 grade), IoT sensor nodes, home appliance control boards, USB device interfaces (via MSSP modules), and battery-powered metering. The 5V tolerance and ample I/O count also suit HVAC and building automation subsystems where robustness is critical. Designers should consider decoupling the VQFN exposed pad with a low-impedance ground plane via multiple thermal vias, and must respect the supply ramp requirements for the ADC reference. Programming is supported via Microchip's MPLAB X IDE and the XC8 compiler suite, with hardware debug enabled through the 2-wire ICSP interface. This page synthesizes distributor pricing, same-brand drop-in alternatives, and practical design notes that complement, but are not duplicative of, the manufacturer datasheet content.

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PIC18F66K40-E/PT - 64KB Flash 8-bit XLP MCU | Microchip
PIC18F66K40-E/PT

PIC18F66K40-E/PT - 64KB Flash 8-bit XLP MCU | Microchip

The Microchip Technology PIC18F66K40-E/PT is a high-performance 8-bit PIC18 microcontroller in the XLP (eXtreme Low Power) family, integrating 64KB of Flash program memory, 4KB of RAM, and 256B of EEPROM in a 64-pin TQFP (PT) package measuring 10x10 mm. It operates at up to 64 MHz instruction-cycle clock, supports 1.8V to 5.5V wide VDD operation, and is the -E temperature grade (industrial, -40C to +125C). On-chip peripherals include a 10-bit ADC2, 5-bit DAC, comparators, PWM, CCP, CWG (Complementary Waveform Generator), HLT (Hardware Limit Timer), WWDT (Windowed Watchdog Timer), SCAN/CRC, ZCD (Zero-Cross Detect), and multiple Core Independent Peripherals. What is a PIC18 XLP microcontroller? The XLP family is Microchip's ultra-low-power PIC18 sub-family built on an enhanced Harvard RISC architecture with a modified instruction set. It belongs to the broader taxonomy: 8-bit microcontroller -> embedded MCU -> integrated circuit. XLP parts are designed for battery-powered and energy-harvesting applications where nanoWatt sleep currents (below ~50 nA typical) and rapid wake-up times extend operating life. The PIC18F66K40 combines this low-power DNA with rich analog and digital peripheral integration, making it a flexible general-purpose controller. Key features include 64KB self-programmable Flash (via ICSP), 4KB SRAM, 256B EEPROM, a 10-bit ADC2 with up to 16 channels, 5-bit DAC, two comparators with selectable reference, three PWM modules, three CCP modules, CWG, HLT, WWDT, SCAN/CRC for memory integrity, ZCD for AC line sensing, and up to 60 I/O pins. The device supports serial interfaces including I2C, SPI, and EUSART with auto-baud detect, and provides flexible oscillator options including internal 64 MHz HFINTOSC and a 31 kHz LFINTOSC for low-power sleep. Architecturally, the PIC18F66K40 uses Microchip's enhanced 8-bit RISC core with a hardware multiplier, single-cycle instruction execution at 64 MHz (15.6 ns instruction cycle), and a 31-level hardware stack. The integrated CIPs (Core Independent Peripherals) such as CWG, HLT, ZCD, and SCAN/CRC operate without CPU intervention, offloading real-time tasks and freeing the core for higher-level application logic. The 5V tolerance and XLP nanoWatt technology allow direct interfacing with analog and AC-line-powered signals in harsh environments. Typical applications include industrial automation and control, low-power sensor nodes, IoT edge devices, smart energy metering, lighting and ballast control, white goods and home appliances, automotive body and comfort modules (industrial-grade only), and human-machine interface (HMI) panels where the rich peripheral set replaces multiple discrete components. When designing with this MCU, allocate sufficient decoupling (100 nF + bulk) near each VDD pin pair and follow Microchip's TQFP-EP thermal pad layout guidelines if migrating from a non-EP variant. Use ICSP programming pins for in-circuit firmware updates during development. This page synthesizes distributor pricing, drop-in alternatives from the same PIC18 K40 family, and practical design notes not consolidated in the manufacturer datasheet.

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PIC18F66K40-E/PTVAO - 64KB Flash 8-bit MCU TQFP-64 | Microchip
PIC18F66K40-E/PTVAO

PIC18F66K40-E/PTVAO - 64KB Flash 8-bit MCU TQFP-64 | Microchip

The Microchip Technology PIC18F66K40-E/PTVAO is an 8-bit PIC microcontroller from the PIC18F K40 family, delivering 64KB of Flash program memory, 4KB of SRAM, and 1KB of EEPROM in a 64-pin TQFP package. It runs at up to 64 MHz internal core speed, supports 2.3V to 5.5V operation, and integrates Core Independent Peripherals (CIPs) including CWG, WWDT, CRC/SCAN, SMT, HLT, and Zero-Cross Detection. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (Flash), volatile data memory (SRAM), EEPROM, and a fixed set of peripherals on one silicon die. The PIC18F K40 family sits in the PIC18 hierarchy as PIC18F -> 8-bit PIC microcontroller -> PIC microcontroller -> microcontroller -> embedded processor. These MCUs target ultra-low-power eXtreme Low Power (XLP) battery designs as well as mainstream 5V general-purpose applications, where rich analog (10-bit ADC with Computation, 5-/8-bit DAC, comparators) and timer-based CIPs replace software loops with hardware state machines. Key differentiating features of the PIC18F66K40 include 64KB self-programmable Flash with device ID/live update, 4KB SRAM, 1KB EEPROM, 10-bit ADC2 with automated Capacitive Voltage Divider (CVD) support, 8-bit DAC, dual comparators with selectable rail-to-rail inputs, 4 CCP/ECCP, 2 UART, 2 SPI, 2 I2C (MSSP), 4 16-bit timers, and a Windowed Watchdog Timer (WWDT). Operating current is approximately 5 mA at 64 MHz / 5V, with sleep currents below 1 uA typical under XLP retention modes. The CIP-rich architecture lets designers implement waveform generation, touch sensing (via mTouch CVD), communications bridging, and motor control without CPU intervention, reducing firmware complexity and BOM cost. Hardware CRC/SCAN and CLC (Configurable Logic Cell) further consolidate glue logic that traditionally required external gates or a companion CPLD. Typical applications include consumer appliances, IoT sensor nodes, white-goods human-machine interfaces, automotive body and interior modules, lighting controllers, and small motor control (BLDC, fan). The 5V-tolerant digital pins and 5V analog rail simplify interface to legacy industrial sensors, while XLP retention supports battery-backed metering and remote controls. Design considerations: at 64 MHz the core draws roughly 5 mA at 5V (~25 mW); a decoupling network of 100 nF + 1 uF + 10 uF near VDD/AVDD is recommended, and unused pins must be configured as outputs low to avoid shoot-through. For programming, MPLAB X IDE with XC8 and the PICkit 4 / ICD 4 / Snap debugger are first-choice tools. This page combines distributor pricing snapshots, drop-in TQFP-64 alternatives, and design notes compiled from the Microchip PIC18F66K40 datasheet family, offering context not aggregated on a single manufacturer page.

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PIC18F66K40-I/MR - 64KB Flash 8-bit MCU 64-VQFN | Microchip
PIC18F66K40-I/MR

PIC18F66K40-I/MR - 64KB Flash 8-bit MCU 64-VQFN | Microchip

The Microchip Technology PIC18F66K40-I/MR is an 8-bit PIC18 microcontroller with 64KB Flash, 64-pin VQFN (9x9 mm) package, 64MHz CPU speed, and eXtreme Low Power (XLP) technology. It belongs to the PIC18F K40 family of low-power, high-performance microcontrollers. A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory (Flash), working memory (RAM), and integrated peripherals. The PIC18F family sits in Microchip's 8-bit portfolio, balancing computational performance with low power consumption. The K40 sub-family adds XLP technology, enabling nanoWatt sleep currents for battery-powered designs. Key features include 64KB Flash program memory, 4KB RAM, 1KB EEPROM, 64MHz operation, up to 12-bit ADC, multiple communication peripherals (UART, SPI, I2C), Core Independent Peripherals such as Configurable Logic Cells (CLC), Complementary Waveform Generator (CWG), and Windowed Watchdog Timer (WWDT). The device operates from 2.3V to 5.5V, with some variants supporting 1.8V minimum for low-voltage applications. The PIC18F66K40 uses a RISC Harvard-architecture CPU with a 16-bit instruction word and 8-bit data path. Its CIPs (Core Independent Peripherals) allow hardware-based state machines without CPU intervention, reducing firmware complexity and enabling deterministic real-time behavior. The 64-VQFN package integrates a thermal pad for improved heat dissipation in space-constrained designs. Typical applications include industrial control, IoT sensor nodes, consumer electronics, automotive body controllers, home automation, and low-power wireless sensor hubs. The XLP feature set makes it especially suitable for battery-backed or energy-harvesting designs. Design consideration: Use the MPLAB X IDE with XC8 compiler. Ensure decoupling capacitors (100nF + 10uF) are placed close to VDD pins, and connect the exposed thermal pad to a ground plane for thermal management. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on the manufacturer datasheet alone, providing unique value for engineers selecting the PIC18F66K40-I/MR.

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PIC18F66K40T-E/PTVAO - 64KB Flash, 64MHz 8-bit MCU | Microchip
PIC18F66K40T-E/PTVAO

PIC18F66K40T-E/PTVAO - 64KB Flash, 64MHz 8-bit MCU | Microchip

The Microchip Technology PIC18F66K40T-E/PTVAO is an 8-bit RISC PIC18 microcontroller with 64KB Flash, 4KB RAM and 1KB EEPROM, integrated in a 64-pin TQFP (10x10 mm) package. It runs at a maximum clock speed of 64MHz and supports a supply voltage of 2.3V to 5.5V across an extended automotive temperature range of -40C to +125C, with 60 I/O pins available for peripheral expansion. A microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (Flash), data memory (RAM), and peripherals (ADC, timers, communication) into one device. The PIC18F66K40 belongs to Microchip's PIC18 (8-bit) family, which sits within the broader hierarchy of microcontrollers -> embedded controllers -> semiconductors. The "K40" generation adds Core Independent Peripherals (CIPs) such as CWG, WWDT, CRC/Memory Scan, and SMT that operate autonomously without CPU intervention, reducing firmware burden and real-time latency. Key features include a 10-bit ADC with ADC2 (computational) capability, a 5-bit DAC, two comparators, multiple PWM channels with complementary waveform generation, hardware limit timer (HLT), signal measurement timer (SMT), and the eXtreme Low Power (XLP) technology for battery-friendly sleep modes below 50 nA. The device supports both 3V and 5V operation, allowing direct interface to legacy analog and 5V sensor systems. Architecturally, the PIC18F66K40 uses an enhanced 8-bit RISC Harvard architecture with a hardware multiplier, 31-level stack, and 32KB Flash program memory (organized as 32K x 16). CIP integration means time-critical tasks (sensor acquisition, motor control edge events, communication framing) can be handled in hardware while the CPU sleeps, allowing aggressive power budgeting. The instruction set remains compatible with the wider PIC18 toolchain, easing migration. Typical applications include automotive body and sensor nodes, industrial control panels, HVAC fan/blown-air controllers, IoT edge sensor hubs, low-power wireless sensor interfaces, and consumer appliances. The wide 5V tolerance makes it a drop-in successor to legacy 5V PIC designs that must now operate from a 3V coin cell during standby. When designing with this part, reserve adequate decoupling on AVDD and VDD (10uF bulk + 0.1uF per pin pair) and configure unused I/O as outputs low to avoid floating-input shoot-through. The automotive-grade "E" temperature suffix and "VAO" suffix indicate PPAP-capable factory flow; confirm with Microchip documentation before substituting the standard "I" variant in automotive systems.

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PIC18F66K40T-I/MR - 64KB Flash XLP 8-bit MCU, 64-VQFN
PIC18F66K40T-I/MR

PIC18F66K40T-I/MR - 64KB Flash XLP 8-bit MCU, 64-VQFN

The Microchip Technology PIC18F66K40T-I/MR is an 8-bit PIC microcontroller in the PIC18 XLP family, offering 64KB of Flash program memory, 4KB of SRAM, and 256 bytes of EEPROM, housed in a 64-pin VQFN (9x9 mm) package with an exposed thermal pad. The device operates up to 64 MHz, supports 1.8V to 5.5V wide VDD, and integrates Core Independent Peripherals such as CWG, WWDT, CRC/Memory Scan, Hardware CVD, and Zero-Cross Detect. The PIC18F66K40T-I/MR is tape-and-reel packaged and rated for the -40C to +85C industrial temperature range. An 8-bit microcontroller (MCU) is a small computer-on-a-chip that integrates a CPU, non-volatile program memory, volatile data memory, and programmable peripherals onto a single silicon die. 8-bit MCUs are typically organized in the taxonomy: microcontroller -> embedded controller -> digital IC -> semiconductor. They are widely used in cost- and power-sensitive embedded applications where deterministic interrupt response, easy programming, and rich peripheral integration outweigh the throughput advantages of 16/32-bit cores. Key features include 60 I/O pins (the highest pin-count device in the PIC18FxxK40 family), a 10-bit ADC with Computation (ADC2), a 5-bit DAC, multiple comparator outputs, PWM, CCP, CWG, SMT, HLT, and Peripheral Pin Select (PPS). The on-chip XLP (eXtreme Low Power) technology provides sub-uA sleep currents for battery-powered designs, while 5V tolerance simplifies mixed-voltage interfacing. Hardware CVD (Capacitive Voltage Divider) enables robust touch and proximity sensing without external components. The PIC18F66K40T-I/MR uses a Harvard-architecture PIC18 CPU with a modified RISC instruction set, 16-bit instructions, and hardware multiply. Core Independent Peripherals execute complex timing, waveform, and communication tasks without CPU intervention, freeing the core for application logic and reducing firmware complexity. Typical applications include industrial control panels, home appliances, USB HID peripherals, sensor hubs, motor control (BLDC, stepper, brushed DC), IoT edge nodes, and battery-powered metering. Designers select the PIC18F66K40T-I/MR when they need the largest pin-count option in the K40 family together with XLP low-power operation and rich Core Independent Peripherals. When designing with this device, ensure the exposed thermal pad is soldered to a sufficiently sized copper pour to meet the datasheet's thermal specifications; derate I/O current per port (max 50 mA per I/O, 100 mA per port). The PPS module allows flexible signal routing between peripherals and pins, simplifying PCB layout when peripherals must be reassigned. This page synthesizes distributor pricing, drop-in alternatives sourced from Microchip's cross-reference search, and practical design notes not found in the manufacturer datasheet alone.

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PIC18F66K40T-I/PT - 8-Bit 64MHz 64KB Flash MCU TQFP-64 | Microchip
PIC18F66K40T-I/PT

PIC18F66K40T-I/PT - 8-Bit 64MHz 64KB Flash MCU TQFP-64 | Microchip

The Microchip Technology PIC18F66K40T-I/PT is an 8-bit PIC18 microcontroller from the eXtreme Low Power (XLP) family, integrating 64 KB of Flash program memory, 3.5 KB of SRAM, and a 64 MHz internal oscillator in a 64-pin TQFP (10x10 mm) package. The device operates from 2.3 V to 5.5 V, supports up to 60 I/O pins, and includes a 10-bit ADC, Core Independent Peripherals (CIPs) such as CWG and WWDT, and on-chip CRC/Memory scan. The "T" suffix indicates tape-and-reel packaging and the "I" grade denotes an industrial -40C to +85C operating range. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, I/O peripherals, and often communication interfaces on one silicon die. The PIC18 architecture is an 8-bit Harvard RISC core enhanced with a 16-bit instruction word, 31-level hardware stack, and linear memory addressing up to 64 KB. MCUs are positioned within the broader taxonomy of embedded computing as programmable logic devices (PLDs) sitting below microprocessors (MPUs) and digital signal controllers (DSCs) in processing capability but above discrete logic in functional integration. Key features of this device include eXtreme Low Power (XLP) technology with sub-uA sleep currents suitable for battery-powered designs, a peripheral pin select (PPS) system that allows remapping of digital peripherals to any I/O, and 5V tolerance on most digital I/O pins. The integrated 64 MHz oscillator eliminates the need for an external crystal in many designs, and the 10-bit ADC with up to 47 channels supports mixed-signal applications. The PIC18F66K40 uses a modified Harvard architecture with separate program Flash and data SRAM buses, allowing simultaneous instruction fetch and data access. Its nanoWatt XLP technology delivers sleep currents below 100 nA in retention modes, and the integrated Core Independent Peripherals (CIPs) - including the Complementary Waveform Generator (CWG), Windowed Watchdog Timer (WWDT), and DMA engine - offload tasks from the CPU to improve efficiency and reduce firmware complexity. Typical applications include industrial sensor interfaces, low-power IoT edge nodes, automotive body and comfort modules, USB and CAN bridging designs, and consumer white goods. The wide 2.3 V to 5.5 V operating range simplifies designs migrating from legacy 5V PIC16/PIC18 systems to modernized low-power platforms. Designers should evaluate the 60 I/O budget carefully against the chosen TQFP-64 footprint and verify that the PPS remapping constraints do not conflict with PCB layout. Programming and debugging are supported through Microchip's MPLAB X IDE and ICD/PICkit tools; ensure the ICSP pinout matches the chosen programming header. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the standalone manufacturer datasheet.

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PIC18F66K80-H/MR - 8-bit 64MHz MCU, 64KB Flash, ECAN, AEC-Q100 | Microchip
PIC18F66K80-H/MR

PIC18F66K80-H/MR - 8-bit 64MHz MCU, 64KB Flash, ECAN, AEC-Q100 | Microchip

The Microchip Technology PIC18F66K80-H/MR is an 8-bit PIC18 XLP microcontroller delivering 64 MHz core performance with 64 KB of Flash program memory, 3.6 KB of RAM, and 1 KB of EEPROM, housed in a 64-pin VQFN (9x9 mm) package with exposed thermal pad. It integrates an ECAN controller alongside I2C, LIN, SPI, and UART/USART interfaces and is qualified to the AEC-Q100 automotive standard. A PIC microcontroller (MCU) is a compact single-chip computer built around a Harvard-architecture CPU with on-chip Flash, RAM, EEPROM, and a rich set of peripherals including timers, ADC, communication controllers, and PWM. PIC18F-series MCUs specifically target high-performance 8-bit embedded designs and belong to Microchip's eXtreme Low Power (XLP) family, occupying the hierarchical niche: microcontroller -> 8-bit MCU -> PIC18 family -> automotive-grade XLP line. Key features include an integrated ECAN module for automotive networking, 11 channels of 12-bit ADC, nanoWatt XLP sleep modes, and a wide 1.8 V to 5.5 V operating range. Brown-out detect, low-voltage detect, power-on reset, PWM, and watchdog timer support robust embedded operation, while AEC-Q100 qualification confirms suitability for automotive under-hood and body electronics. The PIC18F66K80-H/MR is built on Microchip's enhanced PIC18 Harvard architecture with a 16-bit instruction word, 8-bit data path, and 31-level hardware stack, achieving 16 MIPS throughput at 64 MHz. Integrated peripherals share internal buses via a bus matrix that allows simultaneous ADC sampling and ECAN message handling without CPU intervention, simplifying real-time control loops. Typical applications include automotive body and chassis control modules, CAN-based sensor networks, building automation controllers, HVAC fan and damper drivers, industrial sensor hubs, and low-power telemetry endpoints. The combination of ECAN, XLP sleep, and 12-bit ADC positions this part for designs that bridge analog sensing and automotive bus communications. Designers should pay attention to the 64-pin VQFN exposed pad, which must be soldered to a ground copper pour to meet the -40 C to +150 C automotive temperature range. Decoupling, ADC reference layout, and ECAN bus termination are the critical PCB topics; pairing this MCU with a 5 V CAN transceiver such as MCP2561 forms a typical node. This page synthesizes XAIPART inventory data, AEC-Q100-compatible drop-in alternatives from Microchip's PIC18F66K80 family, application-specific design notes, and ECAN peripheral pairing guidance - information not assembled on the manufacturer's product page alone.

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PIC18F66K80-H/PT - 64KB Flash, ECAN 8-bit MCU | Microchip
PIC18F66K80-H/PT

PIC18F66K80-H/PT - 64KB Flash, ECAN 8-bit MCU | Microchip

The Microchip PIC18F66K80-H/PT is a high-temperature grade 8-bit PIC microcontroller with integrated ECAN and eXtreme Low Power (XLP) technology, packaged in a 64-pin TQFP (PT). It features 64 KB of FLASH program memory (32K x 16), 3.6 KB of RAM, and runs the PIC18 core at up to 64 MHz delivering 16 MIPS of computational throughput over a 1.8 V to 5.5 V supply range. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (FLASH/ROM), data memory (RAM), and programmable peripherals into one package. The PIC18 family is an 8-bit Harvard-architecture family that sits within Microchip's broader product hierarchy of 8-bit MCU -> PIC MCU -> PIC18 family -> microcontroller -> embedded computing. The "K" series adds nanoWatt XLP technology, integrated CAN bus peripherals, and enhanced peripherals aimed at automotive and industrial control. Key features of the PIC18F66K80-H/PT include 11 channels of 12-bit Analog-to-Digital Conversion (ADC), an integrated ECAN module for industrial and automotive networking, multiple serial interfaces (UART, SPI, I2C), and nanoWatt XLP sleep modes that cut quiescent current into the nanoamp range. The 64-pin TQFP package exposes up to 53 digital I/O pins plus the dedicated oscillator, programming, and analog lines needed for full peripheral utilization. The -H suffix designates the high-temperature grade variant rated for -40C to +150C operation, while the standard -I and -E grades cover -40C to +85C and -40C to +125C respectively. According to Microchip's datasheet, the -H variant is qualified to AEC-Q100 standards for under-hood automotive and harsh-environment industrial deployments where commercial temperature grades fail to meet thermal margin. Typical applications include CAN-connected automotive body and powertrain ECUs, building automation nodes, elevator controllers, industrial sensor hubs, and pulse-oximeter front-end controllers. The integrated ECAN and 12-bit ADC pair particularly well with analog sensor conditioning and distributed control networks. When designing with this part, ensure the MCLR reset circuit and ICSP programming header follow Microchip's AC244040-style recommendations to avoid programming failures. Decoupling must include a 100 nF ceramic capacitor adjacent to each VDD/VSS pair plus a bulk 10 uF tantalum near the package. This page synthesizes distributor pricing, AEC-Q100 qualification details, and same-package drop-in alternatives (different temperature grade) drawn from Microchip's PIC18F66K80 family datasheet - engineering context not consolidated on a single manufacturer page.

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PIC18F66K80-I/MR - 8-bit 64MHz 64KB Flash MCU w/ ECAN | Microchip
PIC18F66K80-I/MR

PIC18F66K80-I/MR - 8-bit 64MHz 64KB Flash MCU w/ ECAN | Microchip

The Microchip Technology PIC18F66K80-I/MR is an 8-bit PIC18 microcontroller built on the eXtreme Low Power (XLP) nanoWatt architecture, integrating a hardware ECAN module and delivering up to 64 KB of Flash and 4 KB of RAM in a 64-pin VQFN (9x9 mm) package. It runs at 64 MHz (16 MIPS) over a 1.8 V to 5.5 V supply, with 12-bit ADC, CTMU, and nanoWatt XLP sleep modes below 1 uA. A microcontroller (MCU) is a single-chip computer containing a CPU core, program and data memory, peripherals, and I/O. The PIC18 family uses a RISC-based 8-bit core with hardware multiplier, 16-bit instructions, and a Harvard bus that separates program and data paths. The PIC18F66K80 sits in Microchip's "K" mid-range tier, balancing high-performance peripherals (ECAN, 12-bit ADC, CTMU) with the XLP power-saving feature set. Key features include integrated ECAN 2.0B for industrial and automotive networking, a 12-bit A/D converter with up to 16 channels, mTouch capacitive-touch via CTMU, 64 KB self-programming Flash, 1 KB EEPROM, four 8-bit timers plus multiple 16-bit timers, two MSSP (SPI/I2C) ports, and two enhanced USART modules. nanoWatt XLP modes include deep sleep with RTC and WDT operation typically under 1 uA. Typical applications include automotive body and cluster networks (ECAN nodes), building-control and HVAC equipment, elevator control panels, industrial sensor hubs, and low-power remote sensor modules. The wide 1.8-5.5 V range and low sleep current make it well suited to battery-backed or energy-harvesting designs. When designing with this part, ensure decoupling is placed near each power pin, leave the no-connect (NC) pins per the pinout, and configure the CONFIG words for oscillator, watchdog, and code protection. Use MPLAB X IDE with the XC8 compiler for code development and debugging.

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PIC18F66K80-I/PT - 8-bit XLP MCU 64KB Flash ECAN | Microchip
PIC18F66K80-I/PT

PIC18F66K80-I/PT - 8-bit XLP MCU 64KB Flash ECAN | Microchip

The Microchip Technology PIC18F66K80-I/PT is a high-performance 8-bit PIC18 microcontroller with integrated ECAN (Enhanced Controller Area Network), nanoWatt XLP (eXtreme Low Power) technology, and 64 KB of Flash program memory, packaged in a 64-pin TQFP (10x10 mm). It operates from 1.8 V to 5.5 V and supports a maximum CPU clock of 64 MHz, delivering up to 16 MIPS of computational throughput. An 8-bit PIC microcontroller (MCU) is a Harvard-architecture microcontroller that combines a CPU, program memory (Flash), data memory (SRAM), non-volatile EEPROM, and a rich set of on-chip peripherals in a single silicon die. The PIC18 family is Microchip's high-performance tier, and the 'K80' subset adds an ECAN module (CAN 2.0B compliant), a 12-bit ADC with up to 12 channels, and nanoWatt XLP sleep modes that drop quiescent current below 100 nA - making this category ideal for battery-powered and automotive-grade networked nodes. Key features include 64 KB Flash, 4 KB RAM, 1 KB EEPROM, integrated ECAN, 12-bit A/D converter with up to 12 input channels, three 16-bit timers, four CCP/ECCP modules, two analog comparators, CTMU (Charge Time Measurement Unit) for capacitive touch, and a 54-pin I/O count. Peripherals include I2C, SPI, AUSART (enhanced USART), and USB 2.0 full-speed on select derivatives. The wide 1.8V-5.5V operating range supports direct connection to 3.3V and 5V rails in mixed-voltage systems. Architecturally, the PIC18F66K80 employs a 16-bit instruction word with an 8-bit data path and a hardware multiplier for 8x8 signed/unsigned operations in a single cycle. The integrated ECAN module implements the CAN 2.0B active specification with 32 acceptance filters/masks and supports both standard and extended identifiers, suiting it to industrial control, building automation, and automotive body networks. nanoWatt XLP includes IDLE, DOZE, and deep Sleep modes, plus ultra-low-power wake from RTCC or INT0. Typical applications include automotive body and chassis ECAN nodes (CAN gateway, body controller, HVAC, instrument cluster), industrial elevator control, building automation (BACnet or CAN nodes), smart metering, capacitive touch human-machine interfaces, and battery-powered sensor platforms. ECAN integration eliminates an external CAN transceiver's microcontroller-side firmware burden and reduces BOM. When designing with this part, ensure the ICSP/ICD pins (PGC/PGD) are accessible for in-circuit programming and debugging. Use a 20 MHz or 16 MHz crystal with proper load capacitors for full 64 MHz operation via the internal 4x PLL. For automotive deployments, validate the part's automotive-grade variant (PIC18F66K80T-I/PT with extended qualification) against your EMC and temperature requirements. This page synthesizes real-time distributor pricing, verified drop-in alternatives from the same PIC18F66K80 family, and practical design notes not found on the manufacturer product page, giving procurement and firmware engineers a single decision-ready reference.

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PIC18F66K80T-I/PT - 8-bit 64KB Flash MCU w/ ECAN | Microchip
PIC18F66K80T-I/PT

PIC18F66K80T-I/PT - 8-bit 64KB Flash MCU w/ ECAN | Microchip

The Microchip PIC18F66K80T-I/PT is an 8-bit PIC18 microcontroller featuring 64 KB Flash program memory, 4 KB RAM, and an integrated ECAN module, delivered in a 64-pin TQFP (10x10 mm) package. Operating from 1.8 V to 5.5 V with a maximum CPU clock of 64 MHz (16 MIPS instruction throughput), it is the Tape & Reel variant of the PIC18F66K80-I/PT family optimized for high-temperature automotive and industrial applications. An 8-bit PIC microcontroller is a CISC-style Reduced Instruction Set Computing (RISC) device that combines a CPU core, Flash program memory, SRAM data memory, EEPROM, and a rich peripheral set on a single die. PIC18 microcontrollers sit within Microchip's broader hierarchy of MCU -> microcontroller -> embedded controller -> semiconductor IC, and the K-series adds nanoWatt XLP extreme-low-power technology that enables sleep currents measured in nanoamperes. Key features of the PIC18F66K80 family include a 12-bit ADC with up to 12 channels, a Charge Time Measurement Unit (CTMU) for capacitive touch and precise timing, an integrated ECAN module supporting CAN 2.0B, 54 digital I/O pins, and multiple serial interfaces (UART, SPI, I2C). It also integrates nanoWatt XLP technology for low-power sleep modes. The CPU architecture is an 8-bit Harvard RISC core with hardware multiplier and 16-bit instructions, achieving 16 MIPS at 64 MHz. The ECAN peripheral implements the full CAN 2.0B protocol with hardware acceptance filters and a dedicated DMA engine that offloads message handling from the CPU. Typical applications include automotive body and chassis ECUs, CAN-connected industrial control nodes, building automation controllers, capacitive touch user interfaces (via CTMU), and battery-powered sensor hubs. The wide 1.8-5.5 V supply range and XLP sleep modes make it attractive for always-on subsystems. When designing with this part, observe the supply-voltage derating at maximum CPU clock: at 64 MHz the minimum VDD must remain above approximately 4.2 V per the datasheet, so dropping to a 3.3 V rail typically requires limiting FOSC to about 40 MHz. The T-suffix indicates Tape & Reel packaging and the I-suffix denotes the industrial -40C to +85C operating range. This page synthesizes distributor pricing, pin-compatible drop-in alternatives, and practical design notes not found in the standalone Microchip datasheet.

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PIC18F66K90-E/MR - 64KB Flash 8-bit MCU LCD nanoWatt XLP | Microchip
PIC18F66K90-E/MR

PIC18F66K90-E/MR - 64KB Flash 8-bit MCU LCD nanoWatt XLP | Microchip

The Microchip Technology PIC18F66K90-E/MR is an 8-bit PIC microcontroller in the PIC18F87K90 family, featuring 64 KB of Flash program memory (32K x 16), 4 KB RAM, and a 64-pin 9x9 mm VQFN (MR) package with exposed thermal pad. It integrates nanoWatt XLP ultra-low-power technology, a Charge Time Measurement Unit (CTMU) for capacitive touch sensing, a segment LCD driver, and runs up to 64 MHz (16 MIPS) over a 1.8-5.5 V supply range. A microcontroller (MCU) is a single-chip computer containing a CPU core, program and data memory, and integrated peripherals such as timers, ADC, communication controllers, and I/O. The PIC18F family sits within Microchip's 8-bit RISC architecture hierarchy: PIC18F -> enhanced 8-bit core with C-friendly instruction set -> PIC family -> 8-bit microcontroller -> embedded processor -> semiconductor. nanoWatt XLP variants specifically target battery-powered designs where deep-sleep currents in the nA range are required. Key features include 24 channels of capacitive touch support via the CTMU module, an integrated LCD driver with up to 192 segments, three independent CCP/ECCP modules, two MSSP (SPI/I2C) ports, two EUSART modules, a 12-bit ADC with up to 16 channels, and deep-sleep currents under 100 nA typical. The -E suffix denotes the extended (-40C to +125C) operating temperature range, qualifying the part for harsh-environment and automotive under-hood designs. The PIC18F66K90 is built on an enhanced Harvard architecture with a modified 16-bit instruction word, providing a 78-instruction set that supports both compiler-friendly C and assembly. The CTMU produces a constant current that, combined with an internal timer, lets the ADC measure capacitance changes for touch buttons, sliders, and proximity sensors without external analog ICs. The LCD segment driver can drive up to 192 pixels with software-selectable contrast bias. Typical applications include battery-powered LCD thermostats and remote controls, capacitive-touch user interfaces for appliances, utility metering with segment displays, portable medical monitors, industrial HMI panels, and ultra-low-power IoT sensor nodes. The combination of nanoWatt XLP, CTMU touch, and integrated LCD enables single-chip UI designs that previously required multiple discrete components. When designing, place the exposed pad (EP) to a solid copper pour connected to VSS for thermal dissipation and electrical ground. Use MPLAB X IDE with XC8 compiler and the Microchip Code Configurator (MCC) for peripheral setup. Provide a 1 uF + 100 nF decoupling pair adjacent to each VDD pin and route the 32.768 kHz crystal traces symmetrically with a grounded guard ring to minimize RTC jitter. This page synthesizes XAIPART distributor pricing, drop-in same-package alternatives, and practical touch/LCD design notes not found in the manufacturer datasheet alone, giving embedded engineers a single source for sourcing and engineering decision support.

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PIC18F66K90-E/PT - 64KB Flash LCD 8-bit MCU | Microchip
PIC18F66K90-E/PT

PIC18F66K90-E/PT - 64KB Flash LCD 8-bit MCU | Microchip

The Microchip Technology PIC18F66K90-E/PT is a 64-KB Flash, 4-KB SRAM, 8-bit PIC microcontroller in a 64-pin TQFP (10x10 mm) package, operating up to 64 MHz with nanoWatt eXtreme Low Power (XLP) technology. It integrates an integrated LCD driver supporting up to 96 segments, a Charge Time Measurement Unit (CTMU) for capacitive touch, an enhanced analog comparator, and 24 channels of 12-bit ADC. The -E temperature grade designates the -40C to +125C extended-industrial operating range, making this part suitable for harsh-environment displays. A PIC18 microcontroller is an 8-bit Harvard-architecture RISC MCU from Microchip's PIC18 family. Within the broader taxonomy, PIC18 belongs to: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. The PIC18F66K90 sits in the 'K90' sub-family that adds XLP deep-sleep modes (as low as 20 nA), making it well suited to battery-powered touch-enabled human-machine interfaces. The integrated LCD segment driver eliminates the need for an external LCD controller in low-to-medium pixel count products. Key differentiating features include the on-chip CTMU enabling capacitive-button and slider sensing via a single copper layer, flexible oscillator selection (8 MHz internal HFINTOSC, 31 kHz LFINTOSC, external crystal, and PLL up to 64 MHz), and self-programmability of Flash under software control. The peripheral set adds two MSSP (SPI/I2C), two EUSART, mTouch hardware averaging, and up to 30 capacitive-touch channels via CTMU. The dual-row 64-pin TQFP simplifies PCB routing compared to QFN variants while still providing a manageable 10x10 mm footprint. Typical applications include battery-powered medical glucose meters, industrial HMI panels with touch buttons, electronic shelf labels, water/gas meters, and remote control keypads. The combination of low standby current and integrated LCD bias generation removes several discrete components and a separate charge-pump IC from BOM. The E/PT grade extends operating range beyond commercial limits, supporting outdoor or automotive-cabin installations. When laying out the PCB, observe Microchip application note AN578 (LCD biasing and charge pump design) for the segmented glass contrast stability across temperature, and follow Microchip's mTouch design guide for the CTMU touch-pad geometry. Programming is performed via ICSP (In-Circuit Serial Programming) over the PGC/PGD pins, which must be accessible even on production boards for field updates.

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PIC18F66K90-I/MR - 8-Bit XLP MCU 64KB Flash LCD | Microchip
PIC18F66K90-I/MR

PIC18F66K90-I/MR - 8-Bit XLP MCU 64KB Flash LCD | Microchip

The Microchip Technology PIC18F66K90-I/MR is an 8-bit PIC18 XLP microcontroller featuring 64KB Flash, 4KB RAM, integrated LCD driver, and nanoWatt XLP technology, housed in a 64-pin VQFN (9x9 mm) package with exposed pad. It operates at up to 64 MHz instruction clock with a supply voltage range of 1.8V to 5.5V across industrial temperature grades, and provides 54 digital I/O pins with peripheral support including CTMU, ADC, and mTouch capacitive touch sensing. An 8-bit microcontroller (MCU) is a compact programmable processor that integrates CPU, Flash program memory, SRAM, peripherals, and I/O on a single silicon die. Within the hierarchy MCU -> microcontroller -> embedded processor -> semiconductor IC, the PIC18 family sits at the high-performance end of Microchip's 8-bit portfolio and targets low-power embedded designs requiring extended battery life, integrated analog, and human-interface features such as LCD and capacitive touch. The 'K90' series specifically adds an on-chip LCD segment driver and the Charge Time Measurement Unit (CTMU) for touch-key and capacitive measurement, eliminating external driver ICs and reducing BOM cost. Key specifications include 64 KB Flash program memory organized as 32K x 16 words, 4 KB RAM, 1 KB EEPROM, an integrated 10-bit ADC, three analog comparators, two UART/USART modules, two SPI, two I2C, and a parallel port. The nanoWatt XLP technology enables sleep currents in the nanoamp range and Idle/Run currents suitable for battery-powered metering, wearable, and remote-sensor nodes. The 64-VQFN package exposes the thermal pad for low theta_JA, supporting operation across -40C to +85C industrial range. Programming is performed via ICSP or JTAG through the standard Microchip MPLAB X IDE and XC8 toolchain. Typical applications include battery-powered utility metering with LCD readout, electronic shelf labels, home appliances with segment displays, medical glucose and infusion monitors, industrial control panels, and IoT sensor hubs with local touch input. The combination of LCD driver, CTMU touch sensing, and XLP low-power modes targets designs where bill-of-material count and quiescent current dominate the design constraint set. The 54 I/O lines also support keypad scanning, LED drive, and serial communication to host MCUs or radios. When designing with this part, ensure the exposed pad is soldered to a sufficiently large copper pour to meet thermal and electrical grounding requirements. MPLAB X IDE plus the XC8 compiler provides full C-language support; the PIC18 instruction set is fully upward-compatible across the family, easing migration to PIC18F66K80 or PIC18F87K90 derivatives when more memory or I/O is required.

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PIC18F66K90-I/PT - 8-bit 64MHz 64KB Flash LCD MCU | Microchip
PIC18F66K90-I/PT

PIC18F66K90-I/PT - 8-bit 64MHz 64KB Flash LCD MCU | Microchip

The Microchip Technology PIC18F66K90-I/PT is an 8-bit PIC18 microcontroller built on nanoWatt XLP technology, integrating 64KB of Flash program memory, 4KB of RAM, and 1KB of EEPROM in a 64-pin TQFP (10x10 mm) package. It operates at up to 64MHz (with 40MHz mentioned in some distributor datasheets) and targets battery-powered applications with an integrated LCD driver and Charge Time Measurement Unit (CTMU) for capacitive touch interfaces. Key features include an integrated LCD driver supporting up to 192 segments, the CTMU peripheral for capacitive touch sensing, nanoWatt XLP sleep modes for low-power operation, and 54 configurable I/O pins. The device includes multiple communication peripherals such as EUSART, I2C, and SPI, along with 12-bit ADC and multiple timers. The 64-pin TQFP package provides ample I/O for complex embedded designs while maintaining a compact 10x10mm footprint. The PIC18F66K90-I/PT belongs to Microchip's PIC18F87K90 family, which features nanoWatt XLP technology for ultra-low-power sleep modes. The architecture includes a 16-bit instruction set with 8-bit data path, hardware multiplier, and 31-level hardware stack. The CTMU module enables accurate time measurement for capacitive touch sensing applications, making it ideal for user interfaces on battery-powered devices. Typical applications include battery-powered LCD displays, medical glucose meters and patient monitors, home automation control panels with touch interfaces, industrial HMI panels, and consumer electronics with segmented LCD displays. The combination of LCD driver, capacitive touch, and low-power operation makes it particularly suitable for handheld instruments requiring extended battery life. When designing with this MCU, ensure proper decoupling capacitors are placed near the VDD pins. The LCD driver requires bias voltage generation - use Microchip's recommended charge pump or resistor ladder network. For capacitive touch applications, the CTMU module requires careful PCB layout to minimize noise and ensure accurate touch detection.

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PIC18F66K90-I/PTRSL - 8-bit 64MHz 64KB Flash LCD MCU | Microchip
PIC18F66K90-I/PTRSL

PIC18F66K90-I/PTRSL - 8-bit 64MHz 64KB Flash LCD MCU | Microchip

The Microchip Technology PIC18F66K90-I/PTRSL is an 8-bit PIC18 RISC microcontroller built on nanoWatt XLP technology, integrating 64KB (32K x 16) of Flash program memory, 4KB of RAM, and 1KB of EEPROM in a 64-pin TQFP (10x10 mm) package. It executes instructions at up to 64MHz from an internal oscillator, providing the throughput required for LCD control loops, capacitive-touch scanning, and serial communication stacks on a single die. An 8-bit microcontroller (MCU) is a programmable processor whose internal datapath, registers, and ALU are 8 bits wide; it belongs to the broader class of microcontrollers (MCUs), which themselves sit under embedded processors and, more generally, semiconductors. MCUs integrate CPU, memory, and peripherals into one chip to replace discrete logic in battery-powered and cost-sensitive designs. The PIC18 family extends Microchip's mid-range 8-bit line with 16-bit-wide instructions, an 8-level hardware stack, and C-friendly addressing — making it a bridge between classic PIC16 simplicity and 16-bit dsPIC performance. Key features include 53 digital I/O lines, a 16-channel 12-bit A/D converter, four timers, two CCP modules, three ECCP modules, an integrated LCD driver (up to 384 segments), a Charge Time Measurement Unit (CTMU) for capacitive touch, EUSART, I2C, SPI, and nanoWatt XLP sleep currents below 100 nA. The CTMU + LCD + XLP combination targets battery-powered HMI subsystems that must wake periodically, scan keys or touch pads, refresh a glass LCD, and return to deep sleep without draining the cell. Architecturally the PIC18F66K90 uses a Harvard bus with separate Flash and data paths, an in-circuit debug (ICD) interface, and a wide operating voltage range (1.8V to 5.5V family-typical) that allows direct connection to 2.5V, 3.3V or 5V rails. The automotive "I" temperature grade (-40C to +85C) and 64-pin TQFP footprint suit both consumer appliance HMI boards and under-dash automotive clusters. Typical applications include battery-powered blood-glucose meters, thermostats, home-appliance front panels with LCD + capacitive touch, automotive instrument clusters, e-bike dashboards, and low-cost industrial controllers. The "PTRSL" suffix denotes 64-pin TQFP supplied on tape and reel. When designing with this part, budget Flash for both the application and a robust bootloader: 64KB leaves roughly 30KB free after a USB stack or graphics library. Decouple VDD/VSS with 100nF + 10uF, route the 32.768kHz crystal close to SOSCO/SOSCI if RTC accuracy matters, and tie MCLR through a 10k pull-up. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC18F66K90T-I/MR - 64KB Flash, 8-bit MCU w/ LCD | Microchip
PIC18F66K90T-I/MR

PIC18F66K90T-I/MR - 64KB Flash, 8-bit MCU w/ LCD | Microchip

The Microchip PIC18F66K90T-I/MR is an 8-bit PIC microcontroller from the PIC18F87K90 family with 64KB Flash program memory, 4KB RAM, and 1KB EEPROM, housed in a 64-pin VQFN (MR) package with exposed thermal pad. It operates up to 64MHz and supports 1.8V-5.5V supply (with core operation from 1.8V and LCD charge pump configurations extending effective use to 5.5V), integrating a segmented LCD driver, nanoWatt XLP ultra-low-power technology, and a Charge Time Measurement Unit (CTMU) supporting capacitive touch. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, program memory, I/O peripherals, and often analog/digital interfaces on one die. PIC18F devices use Microchip's enhanced Harvard RISC architecture with a 16-bit instruction word, placing them in the broader hierarchy: microcontroller -> embedded controller -> semiconductor -> integrated circuit. The K90 sub-family adds segmented LCD glass driving and ultra-low-power sleep modes targeting human-interface and battery-powered products. Key features include 24 channels of capacitive touch sensing via the CTMU, integrated segmented LCD driver (up to 192 segments), 12-bit A/D converter, multiple PWM/ECCP modules, and nanoWatt XLP technology with currents as low as 20nA in deep sleep. The VQFN-64 (MR) 9x9 mm package with exposed pad supports thermal dissipation for industrial-grade -40C to +85C operation. 54 digital I/O pins enable rich human-machine interface designs. Architecturally the device uses a modified Harvard core with hardware multiply, 31-level stack, and 32 interrupt sources. The LCD module supports static, 1/2, 1/3, 1/4 duty and 1/2, 1/3 bias with an integrated charge pump enabling LCD operation from a single low-voltage supply, eliminating the need for a boosted analog rail. Typical applications include battery-powered thermostats, portable medical monitors, industrial control panels with LCD, electronic shelf labels, gas/water meters, and capacitive-touch human-interface panels. The combination of XLP low power, integrated LCD, and CTMU touch makes it well-suited for any segment-LCD display product that needs a touch overlay and long battery life. When designing with this part, allocate sufficient PCB copper under the exposed pad for thermal relief and connect it with multiple vias to the inner ground plane. The CTMU calibration procedure in the datasheet should be followed exactly for accurate touch sensing. Decoupling must include 100nF ceramic plus bulk capacitance near each supply pin. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on any single manufacturer page.

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