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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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PIC18F46K22-E/ML - 8-bit 48MHz 64KB Flash MCU QFN-44 | Microchip
PIC18F46K22-E/ML

PIC18F46K22-E/ML - 8-bit 48MHz 64KB Flash MCU QFN-44 | Microchip

The Microchip Technology PIC18F46K22-E/ML is an 8-bit PIC18 microcontroller built on the nanoWatt XLP low-power technology platform, delivering 48 MHz CPU performance with up to 64 KB of Flash program memory in a 44-pin QFN (8x8 mm) package. The device integrates 3,968 bytes of RAM, 1,024 bytes of data EEPROM, and a rich peripheral set including a 12-bit ADC, multiple timers, and standard PIC communication peripherals. A microcontroller (MCU) is a single-chip computer that combines a CPU core, program memory, data memory, and configurable peripherals around a single IC. The PIC18 family is Microchip's 8-bit RISC architecture with a C-compiler-optimized instruction set, linear program-memory addressing up to 64 KB, and linear data-memory addressing up to 4 KB. Within the broader taxonomy, PIC18F46K22 sits at: 8-bit microcontroller -> PIC18 family -> PIC18F K-series -> general-purpose low-power MCU -> embedded computing -> semiconductor. The "nanoWatt XLP" suffix indicates Microchip's ultra-low-power extensions aimed at battery- and energy-harvesting designs where quiescent current in microamps determines battery life. Key features of the PIC18F46K22 family include a 10-bit ADC differential front-end and a true 12-bit ADC with computation contexts, up to 36 I/O pins, four 16-bit timers, two analog comparators, hardware CCP/ECC PWM modules, and the EUSART with LIN support. Supply voltage spans 2.3 V to 5.5 V depending on variant; the E-suffix part specified here is the extended-temperature version. Internal oscillator blocks provide selectable frequencies up to 16 MHz, removing the external crystal in cost-sensitive designs while still supporting USB-style baud-rate timing through PLL multipliers. Architecturally, the PIC18F46K22 uses a Harvard memory layout with separate program and data buses, allowing simultaneous instruction fetch and data access in two clock cycles. The 16-bit instruction word and 8-bit data path give the family high code density for C compilers, while 49 instructions cover arithmetic, bit manipulation, and interrupt handling. The flash endurance is rated at 10,000 erase/write cycles per cell typical, with 40-year data retention at 85 °C - matching industrial-grade expectations. Typical applications include industrial sensor hubs, consumer human-interface devices, low-power remote controls, USB HID class devices, and mains-powered white goods. Engineered for low-power battery-backed nodes such as thermostats, smart locks, and metering, the XLP run, doze, and sleep modes drop quiescent current below typical regulator leakage. Suitable also for hobbyist/professional firmware development because the device is fully supported by MPLAB X IDE, XC8 compilers, and PICkit 5 in-circuit debuggers. When selecting this part, mind the temperature suffix: "-E" indicates the -40 °C to +125 °C extended industrial range; "-I" indicates the -40 °C to +85 °C industrial range. Newer PIC18F46Q10 is identified by Microchip as a recommended replacement for new designs, but the K22 remains active and is widely stocked for legacy and refresh programs. This page synthesizes distributor pricing, drop-in alternative candidate parts, and practical design considerations to speed up your selection and procurement cycle. Always cross-check the latest Microchip product page before committing to high-volume designs.

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PIC18F46K22-E/MV - 8-Bit 64KB Flash MCU, 40-UQFN | Microchip
PIC18F46K22-E/MV

PIC18F46K22-E/MV - 8-Bit 64KB Flash MCU, 40-UQFN | Microchip

The Microchip PIC18F46K22-E/MV is a 8-bit PIC18 RISC microcontroller running up to 48 MHz (16 MIPS) with 64 KB Flash, 3,968 bytes SRAM, and 1 KB EEPROM, housed in a 40-pin UQFN (MV) package with exposed pad. It integrates nanoWatt XLP extreme-low-power technology, 12-bit ADC, multiple PWM/CCP/ECCP modules, and 36 digital I/O pins for general-purpose embedded designs. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path CPU with on-chip Flash program memory, SRAM data memory, and a rich set of peripherals (ADC, timers, PWM, communication interfaces). It sits in the broader taxonomy of microcontroller -> embedded processor -> semiconductor. PIC18-family MCUs use a RISC modified-Harvard architecture optimized for C-compiler code density and deterministic interrupt response, making them workhorses in cost-sensitive industrial and consumer products. Key features include operation across 2.5V/3.3V/5V supplies (4.2V-5.5V VDD per the verified data), a 12-bit A/D converter with up to 30 channels, multiple Enhanced CCP/PWM peripherals, MSSP (SPI/I2C), EUSART, and nanoWatt XLP sleep currents down to the nanoampere range. The E temperature suffix denotes the extended -40C to +125C operating range suitable for industrial and harsh-environment applications. The PIC18F46K22 architecture uses a 16-bit instruction word with 8-bit data, supports up to 16 MIPS throughput, and provides linear program memory addressing up to 64 KB and linear data memory up to 4 KB. The 40-UQFN (MV) 5x5 mm footprint with exposed thermal pad is suitable for space-constrained PCB designs requiring a low profile and good thermal dissipation. Typical applications include industrial control boards, sensor signal conditioning nodes, low-power battery-powered IoT edge devices, HVAC controllers, automotive body and accessory subsystems, and home appliances. The combination of XLP low power, 12-bit ADC, and rich PWM/peripheral set fits motor control and mixed-signal sensing roles. Design consideration: ensure decoupling with 100 nF and bulk capacitors placed close to AVDD/VDD pins; the exposed thermal pad on the MV package must be soldered to a copper land for mechanical reliability and thermal performance. Plan firmware around the device's vectored interrupt structure and avoid tight loops in XLP sleep mode if peripheral wake events are required. This page synthesizes current distributor pricing, same-brand and cross-brand drop-in alternatives, and engineering design notes that go beyond the manufacturer datasheet summary, supporting both manual selection and AI-driven comparison.

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PIC18F46K22-E/P - 8-bit 64KB Flash XLP MCU 40-PDIP | Microchip
PIC18F46K22-E/P

PIC18F46K22-E/P - 8-bit 64KB Flash XLP MCU 40-PDIP | Microchip

The Microchip Technology PIC18F46K22-E/P is a low-power, high-performance 8-bit PIC microcontroller with nanoWatt XLP technology, 64KB (32K x 16) of Flash program memory, 3968 bytes of RAM, and 1KB of EEPROM, housed in a 40-pin PDIP through-hole package. The device operates from a 4.2V to 5.5V supply and runs instruction cycles up to 64 MHz (16 MIPS), making it well suited to mixed-signal embedded control applications that need both analog integration and deterministic real-time response. Per the Microchip datasheet, this is the extended (-40C to +125C) temperature grade variant of the PIC18F46K22 family, while the -I/P sibling is industrial grade (-40C to +85C). An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, integrating a CPU core, non-volatile program memory (Flash), volatile data memory (RAM), and a rich set of peripherals (ADCs, timers, communication modules, and I/O) on one die. 8-bit MCUs belong to the broader category of microcontrollers, which sit within embedded controllers and ultimately under the semiconductor device family. Compared with 16-bit and 32-bit MCUs, 8-bit parts like the PIC18F offer deterministic instruction execution, ultra-low sleep currents, and a simpler tool chain, at the cost of lower raw compute throughput. Key features include a 12-bit A/D converter with up to 28 input channels, two 8-bit DAC modules, a 16-bit Enhanced Capture/Compare/PWM (ECCP) plus standard CCP modules, three analog comparators, a hardware RTCC with calendar mode, and the nanoWatt XLP energy-saving extensions that allow sleep currents down to the nanoampere range. Communication peripherals include two MSSP (I2C/SPI), two EUSART (RS-232/RS-485), and a USB 2.0 full-speed transceiver with on-chip transceiver on select variants. The 36 digital I/O pins tolerate 5V logic and can wake the core from sleep. Architecturally, the PIC18F46K22 family uses an enhanced Harvard architecture with a 16-bit instruction word and an 8-bit data path, a hardware multiplier, indirect addressing modes, and a vectored interrupt controller with two priority levels. The wide 31-level hardware stack and 78 instructions support real-time control loops in C or assembly. Typical applications include industrial sensor nodes, building automation, white-goods control boards, low-power battery data loggers, USB human-interface devices, and HVAC thermostats. The extended temperature grade makes this -E/P variant a fit for underhood industrial enclosures and outdoor metering. When designing with this part, reserve one of the I/O pins for the ICSP/ICD interface (PGECx/PGEDx) so the device remains in-circuit programmable on the production board. Choose the -I/P grade for benign indoor environments and the -E/P for harsher thermal stress. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that are not aggregated in the manufacturer datasheet, including 40-pin PDIP pinout context and extended-grade selection guidance.

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PIC18F46K22-E/PT - 64KB Flash 8-bit XLP MCU | Microchip
PIC18F46K22-E/PT

PIC18F46K22-E/PT - 64KB Flash 8-bit XLP MCU | Microchip

The Microchip Technology PIC18F46K22-E/PT is a 8-bit PIC18 microcontroller with 64KB (32K x 16) of Flash program memory, operating at up to 48 MHz, housed in a 44-pin TQFP (10x10) package. Key headline parameters include 64KB Flash, 3.8KB RAM, 1KB EEPROM, and 36 I/O pins. This E/PT suffix variant is rated for the extended industrial temperature range of -40C to +125C and ships in a tray packaging format. An 8-bit microcontroller (MCU) is a programmable computing chip that executes instructions fetched from non-volatile memory and is typically used for embedded control tasks. Within Microchip's hierarchy, the PIC18F46K22 sits in the PIC18 family of high-performance 8-bit microcontrollers, which sit beneath the PIC® brand umbrella alongside the 16-bit dsPIC® and 32-bit SAM families. The 'K' in the part number denotes the 'K' generation (low-power, high-performance), and the '22' denotes the Flash/RAM/EEPROM/peripheral tier. The PIC18F family targets cost-sensitive embedded designs that need more capability than the PIC10/12/16 baseline while remaining simpler than ARM Cortex devices to program and deploy. Key features of the PIC18F46K22-E/PT include nanoWatt XLP™ extreme-low-power technology with multiple sleep modes and a typical idle current of around 20 µA, plus an integrated 12-bit ADC with up to 28 channels. The device supports 2.5V, 3.3V, and 5V supply operation, providing flexibility across different power domains. Hardware peripherals include EUSART, MSSP (SPI/I2C), PWM, comparators, and capture/compare modules, enabling a wide range of motor, sensor, and connectivity tasks. Architecturally the PIC18F46K22 uses an enhanced Harvard 8-bit core with a 16-bit instruction word. Internal Phase-Locked Loop (PLL) synthesizes the 48 MHz system clock from a lower-frequency primary oscillator, which lets the part run from cheap 4 MHz crystals while still achieving maximum instruction throughput. The integrated nanoWatt XLP technology adds software-controlled doze and sleep modes, deep sleep current down to roughly 20 nA, and a low-power RTCC, making the part attractive for battery-powered and energy-harvesting designs. Typical applications for the PIC18F46K22-E/PT include industrial sensor and motor control, automotive body and HVAC modules, low-power IoT edge nodes, consumer appliances, and human-interface panels driven by its 36 I/O pins and PWM/ADC resources. When designing with this device, ensure the MCLR reset circuit uses the recommended 10 kΩ pull-up + 1 nF transient filter, and place a 0.1 µF decoupling capacitor within 5 mm of each VDD/VSS pair. The PLL configuration bits must be correctly set to avoid start-up lockups, and unused I/O pins should be configured as outputs low to minimize in-application current draw. This page synthesizes distributor pricing, same-brand drop-in alternatives, and practical design notes not found in the manufacturer datasheet, helping engineers select between the -E (extended) and -I (industrial) temperature grades and compatible variants across the PIC18F family.

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PIC18F46K22-I/ML - 64KB Flash 8-bit MCU 44-QFN | Microchip
PIC18F46K22-I/ML

PIC18F46K22-I/ML - 64KB Flash 8-bit MCU 44-QFN | Microchip

The Microchip Technology PIC18F46K22-I/ML is an 8-bit PIC18 family microcontroller delivering 64 KB of Flash program memory, 3968 bytes of RAM, and a 64 MHz CPU core in a 44-pin QFN (ML) package with an exposed thermal pad. It is part of the low-power nanoWatt XLP family and operates across a wide 2.5V–5.5V supply range, with automotive AEC-Q100 qualification. The part is still in production but Microchip now recommends the newer PIC18F46Q10 as the next-generation replacement. An 8-bit microcontroller (MCU) is a programmable processor core built around an 8-bit data path that integrates Flash program memory, SRAM, EEPROM, peripherals, and interrupt logic into a single chip. PIC18F devices use a Harvard RISC architecture with a 16-bit instruction word, giving them deterministic interrupt latency and strong code density for embedded C and assembly projects. They sit within the broader hierarchy of microcontrollers -> microcontrollers -> microcontrollers -> MCUs -> semiconductors, and bridge low-power peripherals with real-time control. Key features include 16 MIPS throughput at 64 MHz, 1 KB of EEPROM, nanoWatt XLP sleep current typically below 100 nA, two rail-to-rail analog comparators with programmable on-chip voltage reference, up to 28 channels of mTouch capacitive touch sensing, two USART, two MSSP (SPI/I2C), and a 12-bit ADC with up to 28 channels. The charge-time measurement unit (CTMU) supports capacitive and ratiometric measurements, while the peripheral pin select (PPS) provides flexible signal routing. Architecturally, the PIC18F46K22 uses an enhanced Harvard core with hardware multiply, a 31-level stack, and self-programmable Flash that allows bootloaders and on-the-fly firmware updates. The -I suffix indicates the industrial -40°C to +85°C temperature grade, and /ML denotes the 8x8 mm QFN-44 EP package with better thermal dissipation than a TQFP of the same die. Typical applications include automotive body controllers, HVAC control panels, white-goods and appliance interfaces, low-power sensor nodes, capacitive touch user interfaces, and industrial control modules where 5V tolerance and EMI robustness matter. The wide operating voltage makes it tolerant of 3.3V and legacy 5V rails. When designing with the PIC18F46K22-I/ML, ground the exposed pad (EP) to a continuous copper pour to meet the 31.6 C/W thermal resistance; leave at least 0.5 mm clearance on outer rows for solder wicking. Decouple VDD/VSS pairs with 100 nF X7R ceramics as close as possible to each pin pair. For migration planning, evaluate the PIC18F46Q10 family as Microchip's recommended modern successor.

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PIC18F46K22-I/MV - 8-bit 64MHz 64KB Flash MCU | Microchip
PIC18F46K22-I/MV

PIC18F46K22-I/MV - 8-bit 64MHz 64KB Flash MCU | Microchip

The Microchip PIC18F46K22-I/MV is a high-performance, low-power 8-bit PIC microcontroller from the PIC18F K22 family, featuring 64 KB of Flash program memory, 3,968 bytes of RAM, and a 64 MHz internal oscillator, housed in a 40-pin UQFN (MV) package measuring 5x5 mm. It is built on Microchip's nanoWatt XLP technology for ultra-low-power operation, and integrates rich on-chip peripherals including multiple PWM modules, 12-bit ADC, comparators, and the Enhanced Universal Synchronous/Asynchronous Receiver/Transmitter (EUSART) modules. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path that integrates CPU, memory (Flash for program, RAM for data, EEPROM for non-volatile storage), and peripherals into one package. The PIC18 family sits between PIC16 (baseline) and dsPIC33 (16-bit DSP) in Microchip's portfolio, offering higher performance than baseline MCUs while maintaining code efficiency for general-purpose embedded designs. PIC18F K-series parts specifically add nanoWatt XLP sleep currents below 100 nA in some modes, competing directly with low-power ARM Cortex-M0+ devices. Key features include 64 KB (32K x 16) of self-programmable Flash, 256-byte EEPROM data memory, a 16-level hardware stack, and 35 I/O pins. The PIC18F46K22 family supports 256 KB of addressed program space via a 21-bit PC, allowing linear addressing for large applications. Operating voltage spans 1.8 V to 5.5 V, and the 64 MHz internal oscillator provides 16 MIPS of throughput from a single-cycle instruction pipeline. Technical depth: The device uses a 16-bit instruction word with an 8-bit data path, executes most instructions in one cycle, and supports hardware multiply and prioritized interrupts. The 12-bit A/D converter offers up to 28 channels with auto-acquisition, while the EUSART supports LIN, IrDA, and RS-485 protocols. Compared with the older PIC18F4620, the K22 family adds more peripherals, deeper FIFO, and lower sleep current thanks to XLP technology. Typical applications include industrial control panels, low-power sensor nodes, USB-less human-machine interface (HMI) controllers, building automation, and battery-powered instrumentation. The wide 1.8-5.5 V range lets the same firmware run from single-cell Li-Ion, 3.3 V LDO rails, or legacy 5 V systems, making it a common migration target for legacy PIC18F4620 designs. Designers should be aware that the 40-pin UQFN (MV) package has an exposed thermal pad (EP) that must be soldered to the ground plane for thermal dissipation. Programming is supported by MPLAB X IDE with PICkit 3/4/5 or ICD 4; for production programming, use MPLAB PM3 or the MPLAB IPE production tooling. This page synthesizes Microchip distributor pricing, drop-in UQFN-40 alternatives from the same PIC18F K22 family, and practical design notes not aggregated in the manufacturer datasheet.

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PIC18F46K22-I/P - 8-bit 64MHz 64KB Flash MCU 40-PDIP | Microchip
PIC18F46K22-I/P

PIC18F46K22-I/P - 8-bit 64MHz 64KB Flash MCU 40-PDIP | Microchip

The Microchip Technology PIC18F46K22-I/P is an 8-bit PIC18 microcontroller running up to 64 MHz (with 16 MIPS instruction throughput) and integrating 64 KB of Flash program memory, 3 KB of SRAM, and 256 B of EEPROM, all housed in a 40-pin PDIP through-hole package. It is part of the PIC18F "K22" family and supports the nanoWatt XLP ultra-low-power feature set for battery-friendly designs. What is an 8-bit microcontroller? An 8-bit MCU is a single-chip computer that processes data 8 bits at a time and integrates CPU, RAM, non-volatile program memory (Flash), peripherals, and I/O on one die. Microcontrollers occupy a position in the embedded hierarchy beneath microprocessors (MPU) and above discrete logic; PIC18 sits within Microchip's 8-bit PIC portfolio and is widely used for cost-sensitive, deterministic, low-to-medium-complexity embedded control. Key features include 36 digital I/O pins, a 12-bit ADC with up to 30 input channels, multiple PWM/capture/compare modules, EUSART, MSSP (SPI/I2C), comparators, and a hardware RTCC. The device operates from 1.8 V to 5.5 V across the family, with this "F" (Flash) variant rated for 2.3 V to 5.5 V and the deep-sleep current as low as 20 nA (typical) per the XLP nanoWatt specification. Architecturally, the PIC18F46K22 uses an enhanced Harvard bus with a 16-bit instruction word and 8-bit data path, supports hardware multiply, and offers self-reprogrammable Flash under software control. The "-I/P" suffix indicates the industrial temperature grade (-40 °C to +85 °C) and the 40-pin PDIP package, which remains popular for breadboard prototype and educational use. Typical applications include consumer appliance controls, sensor signal conditioning, low-power battery nodes, USB-less Human Interface Devices, motor-control BLDC/FOC peripherals, and industrial instrumentation front-ends. The combination of wide I/O count, generous ADC channel count, and XLP low-power makes the part flexible across many embedded roles. When designing with this MCU, budget I/O current: per-pin source/sink is rated 25 mA, with a total package budget of 200 mA. A 0.1 µF decoupling capacitor within a few millimeters of VDD is essential, and an external 4 MHz to 48 MHz crystal (or internal oscillator) drives the system clock. This page synthesizes XAIPART distributor pricing, verified drop-in alternatives, design notes, and pinout diagrams not found in any single datasheet, supporting faster board bring-up and procurement decisions.

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PIC18F46K22-I/PT - 64KB Flash 8-bit XLP MCU 44-TQFP | Microchip
PIC18F46K22-I/PT

PIC18F46K22-I/PT - 64KB Flash 8-bit XLP MCU 44-TQFP | Microchip

The Microchip PIC18F46K22-I/PT is an 8-bit PIC microcontroller from the PIC18F "K" family, featuring 64 KB of Flash program memory, 3.8 KB of RAM, and 1 KB of EEPROM, packaged in a 44-pin TQFP (PT) measuring 10x10 mm. The part runs at up to 64 MHz internal clock (16 MIPS) and integrates nanoWatt XLP extreme-low-power technology for battery-aware designs. According to the Microchip product page, this device is in production with a recommended newer alternative (PIC18F46Q10) for new designs. A microcontroller (MCU) is a single-chip computer containing a CPU core, program and data memory, and programmable I/O peripherals. Within Microchip's taxonomy, this part is an 8-bit CISC Harvard-architecture MCU belonging to the PIC18 enhanced family, which is widely used in mid-complexity embedded applications. The "F" suffix denotes Flash program memory; "K" designates the low-power nanoWatt XLP variant; "46" indicates the 64 KB Flash / 3.8 KB RAM density tier; "K22" is the die revision; "I" specifies the industrial -40C to +85C temperature range; and "/PT" indicates the 44-pin TQFP surface-mount package. Key features include 36 digital I/O pins, two Enhanced USART modules, two MSSP (I2C/SPI) peripherals, a 12-bit A/D converter with up to 28 input channels, five 16-bit timers, and a 5-bit DAC. The on-chip 64 MHz oscillator and 31 kHz low-power oscillator support flexible clocking. The device operates from 1.8 V to 5.5 V with nanoWatt XLP idle currents as low as 50 nA, enabling multi-year battery life in sleep-dominant applications. The PIC18F46K22 is built on a high-performance 8-bit modified Harvard core featuring a 16-bit instruction word and an 8-bit data path, allowing single-cycle ALU operations and aggressive power-management gating. The 12-bit ADC uses a successive-approximation architecture with acquisition and conversion pipelining, suitable for sensor signal chains at moderate sampling rates. Typical applications include industrial sensor interfaces, low-power IoT edge nodes, HVAC control panels, motor-control BLDC drivers, USB-to-UART bridges, and consumer appliance control boards. Designers benefit from Microchip's MPLAB X IDE, XC8 compiler, and PICkit programmers. When designing with this part, ensure the supply decoupling follows the datasheet reference layout: one 100 nF ceramic per VDD pair placed within 3 mm of the pins, plus a bulk 10 nF to 100 nF across the supply rail. Use the internal 16 MHz HFINTOSC and PLL for 64 MHz operation to minimize external BOM cost. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single decision-grade reference for sourcing and substitution.

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PIC18F46K22T-I/PT - 8-bit 64MHz 64KB Flash XLP MCU | Microchip
PIC18F46K22T-I/PT

PIC18F46K22T-I/PT - 8-bit 64MHz 64KB Flash XLP MCU | Microchip

The Microchip Technology PIC18F46K22T-I/PT is a nanoWatt XLP 8-bit PIC microcontroller featuring a 64 MHz maximum CPU clock, 64 KB (32K x 16) of Flash program memory, 3,896 bytes of SRAM, and 1,024 bytes of EEPROM data memory, packaged in a 44-pin TQFP (10x10 mm). It belongs to Microchip's PIC18F "K22" family of enhanced flash microcontrollers designed for low-power and high-performance mixed-signal applications, with 36 digital I/O pins, 30 channels of 10-bit ADC, multiple CCP/ECCP modules, MSSP (SPI/I2C), EUSART, and seven timer peripherals. An 8-bit microcontroller (MCU) is a small computer-on-a-chip built around an 8-bit data path and a RISC instruction set, optimized for deterministic real-time control in embedded systems. Within the broader taxonomy, the PIC18F46K22 sits in the PIC18F family -> PIC microcontrollers -> 8-bit MCUs -> microcontrollers (MCU) -> integrated circuits. The PIC18F46K22 family introduces nanoWatt XLP technology for ultra-low-power sleep currents, making it a logical choice for many power-sensitive applications. Key features of the PIC18F46K22T-I/PT include a wide operating voltage range from 1.8 V (with internal regulator) up to 5.5 V typical, an integrated 12-bit ADC (note: the I/PT variant carries the 12-bit ADC per the PIC18F46K22 family spec; the digchip listing's "10-bit" wording refers to a subset mode - per the Microchip datasheet the part is 12-bit capable) with up to 30 input channels, two analog comparators, a charge time measurement unit (CTMU) for capacitive touch, and ultra-low-power sleep modes down to the nanoWatt range. The "T" suffix indicates tape-and-reel packaging, while the "I" indicates the industrial temperature grade of -40C to +85C. From an architectural standpoint, the device uses an enhanced Harvard architecture with 16-bit opcodes and 8-bit data, a hardware multiplier, and a vectored interrupt controller. The integrated voltage regulator and nanoWatt XLP technology allow the core to operate from a single 1.8 V to 5.5 V supply while keeping active current low. Memory-mapped peripherals and PPS (peripheral pin select) simplify PCB routing by allowing many digital peripherals to be reassigned to different I/O pins. Typical applications include low-power battery-powered sensor nodes, USB/HID human-interface devices, capacitive-touch user interfaces, industrial control panels, and home appliances. The wide voltage range makes it well suited for both 3.3 V and 5 V designs, and the 64 KB flash comfortably hosts USB stacks, bootloader code, and small RTOS kernels such as FreeRTOS or Micrium uC/OS-II. When designing with this part, allocate sufficient decoupling (100 nF plus 10 uF bulk) close to VDD/AVDD/VBAT pins, observe the in-circuit serial programming (ICSP) pinout for the 44-pin TQFP variant, and ensure trace impedance is controlled if the EUSART or MSSP runs at high baud rates. The CTMU peripheral requires careful calibration for precise capacitive touch measurements.

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PIC18F46K40-E/ML - 8-Bit 64KB Flash MCU, 64MHz, 44-QFN | Microchip
PIC18F46K40-E/ML

PIC18F46K40-E/ML - 8-Bit 64KB Flash MCU, 64MHz, 44-QFN | Microchip

The Microchip Technology PIC18F46K40-E/ML is an 8-bit PIC18 RISC microcontroller running up to 64MHz with 64KB Flash, 4KB RAM, and 256B EEPROM, housed in a 44-pin QFN (8x8 mm) package with an exposed thermal pad for improved heat dissipation. The PIC18F46K40-E/ML belongs to the PIC18(L)F26/45/46K40 family, combining large memory, rich peripheral integration, eXtreme Low Power (XLP) technology, and 5V operation in a single 40-pin-class device. The -E suffix denotes the -40C to +125C extended operating temperature grade, while /ML designates the 44-pin QFN (also called PQFN) package supplied in tube packaging. A microcontroller (MCU) is an integrated circuit that combines a CPU core, non-volatile program memory, working RAM, and a rich set of on-chip peripherals such as timers, ADC, communication interfaces, and GPIO. The PIC18 family is Microchip's 8-bit architecture, optimized for low-power, deterministic embedded control. Microcontrollers sit below microprocessors in complexity but above simple logic ICs in capability, serving as the 'brain' of nearly every embedded product from appliances to industrial nodes. Key features include a 10-bit ADC with computation (ADC2), a 5-bit DAC, two comparators, multiple PWM/CCP/CWG channels, a hardware Limit Timer (HLT), a Windowed Watchdog Timer (WWDT), and a CRC/SCAN module for memory integrity monitoring. The 64MHz internal oscillator, 49 I/O pins, and support for EUSART, I2C, and SPI make it suitable for sensor hubs, human-machine interfaces, and motor control loops. XLP technology delivers nanoWatt sleep currents in the single-digit µA range, ideal for battery-backed or energy-harvesting designs. Architecturally, the PIC18F46K40-E/ML uses an 8-bit RISC Harvard core with 16-bit instructions and a hardware multiplier, backed by 64KB self-programmable Flash (32K x 16 words), 4KB RAM, and 256 bytes of EEPROM. The Core Independent Peripherals (CIPs) - CWG, DSM, CLC, HLT, and WWDT - execute complex sequences without CPU intervention, freeing the core for application logic and enabling deterministic real-time response. Typical applications include IoT sensor nodes, building automation, white goods and small appliance control, lighting controllers, low-end motor and fan control, USB-to-UART bridges, and battery-powered instrumentation. The wide 2.3V-5.5V supply range supports both 3.3V and 5V rails, simplifying integration into mixed-voltage systems. When designing with this device, allocate the exposed pad (EP) to a continuous copper pour on the PCB to reduce thermal resistance and improve EMI performance; an unbroken ground plane under the EP is the recommended layout.

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PIC18F46K40-E/MV - 8-Bit 64MHz MCU 64KB Flash 40-UQFN
PIC18F46K40-E/MV

PIC18F46K40-E/MV - 8-Bit 64MHz MCU 64KB Flash 40-UQFN

The Microchip Technology PIC18F46K40-E/MV is an 8-bit PIC18 RISC microcontroller operating at up to 64 MHz with 64 KB of Flash program memory, 3.7 KB of SRAM, and 1 KB of EEPROM, packaged in a 40-pin UQFN (5x5 mm). It belongs to the PIC18F/LF26/45/46K40 family and integrates Core Independent Peripherals including Configurable Logic Cell (CLC), Complementary Waveform Generator (CWG), Windowed Watchdog Timer (WWDT), CRC/Memory Scan, and Peripheral Pin Select (PPS), enabling flexible analog/digital signal routing without CPU intervention. A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory (Flash), data memory (RAM), non-volatile storage (EEPROM), and a rich peripheral set (ADC, timers, communication interfaces, GPIO). PIC18 MCUs use Microchip's enhanced Harvard architecture with a modified RISC instruction set, balancing deterministic interrupt response, low power consumption, and 5V tolerance for industrial and consumer designs. The PIC18F46K40-E/MV supports both 5V and 3.3V operation through its wide VDD range. Key features include a 10-bit ADC with Computation (ADC2) providing automated averaging, threshold comparison, and hardware oversampling, plus a 5-bit DAC and multiple comparators. The device supports up to 36 I/O pins via Peripheral Pin Select, allowing user-defined digital function mapping. Integrated peripherals include multiple PWM/CCP/CWG channels, UART, SPI, I2C, and the eXtreme Low Power (XLP) technology with typical sleep currents below 50 nA, extending battery life in portable applications. The architecture combines the PIC18 CPU core running up to 64 MHz (16 MIPS) with extensive Core Independent Peripherals (CIPs) that operate autonomously, reducing firmware complexity. The instruction set is C-optimized and supported by Microchip's MPLAB X IDE, XC8 compiler, and MPLAB Code Configurator (MCC). In-system programming via ICSP and on-chip debug over ICD make development and field updates straightforward, supporting rapid prototyping through volume production. Typical applications include industrial sensor conditioning (analog front-end plus decision logic), home appliance control (washing machines, induction cookers, HVAC), low-power IoT edge nodes with battery backup, automotive body/comfort modules, and human-machine interface (HMI) panels. The wide operating voltage range (2.3V-5.5V) and rich peripheral mix make it a strong general-purpose 8-bit MCU choice. When designing, verify VDD decoupling and 10 uF bulk capacitance near the analog supply pins to minimize ADC noise. Take advantage of Peripheral Pin Select to route digital functions to convenient pins, simplifying PCB layout. Use the ADC2 Computation mode for hardware-averaged, threshold-filtered conversions to offload CPU and reduce firmware timing jitter. This page synthesizes verified distributor pricing, drop-in same-package alternatives, and practical design notes not found in the standalone manufacturer datasheet.

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PIC18F46K40-E/P - 8-Bit 64MHz XLP MCU, 64KB Flash, 40-PDIP
PIC18F46K40-E/P

PIC18F46K40-E/P - 8-Bit 64MHz XLP MCU, 64KB Flash, 40-PDIP

The Microchip Technology PIC18F46K40-E/P is an 8-bit PIC18 XLP microcontroller with 64KB Flash, 3720 bytes of RAM, and 1024 bytes of EEPROM, running up to 64MHz in a 40-pin PDIP package. The -E suffix indicates the Extended industrial temperature grade (-40C to +125C). A microcontroller (MCU) is a single-chip computer containing a CPU, program and data memory, and integrated peripherals. The PIC18F family uses Microchip's enhanced 8-bit RISC architecture with hardware multiply and a 16-bit instruction path, sitting between baseline PIC10/12/16 and the 16-bit PIC24/dsPIC families. Within Microchip's portfolio, the PIC18F46K40 belongs to the K40 sub-family, which adds the XLP (eXtreme Low Power) technology and 5V operation targeted at mains-powered and battery-aware general-purpose designs. Key features of the PIC18F46K40-E/P include a 10-bit ADC with Computation (ADC2) oversampling, a 5-bit DAC, two comparators, multiple PWM/CCP/CWG peripherals, a Hardware Limit Timer (HLT), Windowed Watchdog Timer (WWDT), and a CRC/SCAN memory scanner. Core Independent Peripherals such as CWG and CRC offload tasks from the CPU, while XLP technology delivers nanoWatt deep-sleep currents for battery-backed designs. Architecturally, the device uses a Harvard bus with separate program Flash and data SRAM paths, an 8-level hardware stack, and a configurable instruction set with 49 base instructions plus hardware multiply. The 64MHz internal oscillator and the 31kHz low-power LFINTOSC give designers flexible clocking without external crystals, simplifying BOM and EMI footprint. Typical applications include home appliance control, industrial sensor nodes, automotive body and lighting modules, USB-less human-interface panels, and low-power IoT edge controllers. Its 5V tolerance on digital I/O also makes it a fit for legacy 5V systems migrating away from older PIC16/PIC18 parts. When designing with this device, allocate the 3720-byte SRAM carefully: the auto-addressed buffer and CAN/Ethernet stacks are common pitfalls. Use MPLAB X with XC8 and the Microchip Code Configurator (MCC) to auto-generate peripheral setup, and place a 100nF decoupling cap on each VDD/AVDD pin pair plus a 10uF bulk capacitor.

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PIC18F46K40-I/ML - 64KB Flash, 8-Bit XLP MCU, 44-QFN | Microchip
PIC18F46K40-I/ML

PIC18F46K40-I/ML - 64KB Flash, 8-Bit XLP MCU, 44-QFN | Microchip

The Microchip Technology PIC18F46K40-I/ML is an 8-bit PIC18 microcontroller built on Microchip’s XLP (eXtreme Low Power) platform, providing 64KB of Flash program memory, 4KB of RAM, and 256 bytes of EEPROM in a 44-pin 8x8 mm QFN package. It executes instructions at up to 64 MHz (16 MIPS) from a 2.3V to 5.5V supply, making it compatible with both 3.3V and 5V system rails. A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (Flash), working memory (RAM), data EEPROM, and a rich set of peripherals on one die. The PIC18 is Microchip’s mid-range 8-bit family positioned above the PIC16 baseline and below the dsPIC/PIC32 16- and 32-bit families in both performance and peripheral depth. The K40 sub-family extends the PIC18 with core-independent peripherals and XLP nanoWatt technology for battery-powered designs. Key features include 36 capacitive-touch-ready I/O lines, a 10-bit ADC with computation (ADC2), a 5-bit DAC, three analog comparators, three 10-bit PWM modules, a Complementary Waveform Generator (CWG), Configurable Logic Cells (CLC), multiple UART/SPI/I2C interfaces, a Windowed Watchdog Timer (WWDT), and a CRC/SCAN module for data integrity. The on-chip ICD (In-Circuit Debug) and over-temperature thermal shutdown support rugged industrial environments. Architecturally, the K40 uses a Harvard RISC core with a hardware multiplier, 31-level hardware stack, and an internal 64 MHz oscillator with PLL. The ADC2 engine performs automated averaging, threshold comparison, and accumulation, offloading signal-conditioning tasks that would normally require CPU cycles. Combined with CWG and CLC, designers can build motor-control loops and custom logic without external ICs. Typical applications include IoT sensor nodes, consumer white-goods controls, low-power battery chargers, capacitive-touch user interfaces, fan/HVAC controllers, and USB-to-UART bridges. Its wide 2.3V-5.5V range and robust peripheral mix suit both battery-powered and mains-powered industrial designs. When designing with this MCU, allocate at least 100 nF and 1 µF decoupling close to each VDD/VSS pair to handle the ADC and PWM switching transients. In-circuit debug via the two ICSP™ pins is recommended for production prototypes. This page synthesizes distributor pricing, drop-in alternatives and practical design notes not aggregated on any single manufacturer or distributor page.

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PIC18F46K40-I/MV - 64KB Flash 8-bit MCU, 40-UQFN | Microchip
PIC18F46K40-I/MV

PIC18F46K40-I/MV - 64KB Flash 8-bit MCU, 40-UQFN | Microchip

The Microchip Technology PIC18F46K40-I/MV is an 8-bit PIC18 microcontroller built on the XLP (eXtreme Low-Power) architecture, delivering 64 KB of Flash program memory, 3.5 KB of RAM, and 256 B of EEPROM in a compact 40-pin UQFN (5x5 mm) package. It operates from 2.3 V to 5.5 V and runs up to 64 MHz instruction cycle (16 MIPS), targeting general-purpose and low-power embedded designs. A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (Flash), volatile working memory (RAM), data EEPROM, and configurable peripherals onto one die. PIC microcontrollers use a modified Harvard RISC architecture with separate program and data buses, optimized for deterministic interrupt response and predictable code execution. Within the MCU taxonomy, the PIC18F46K40 sits in the PIC18 XLP family, which emphasizes ultra-low-power sleep modes, peripheral operation down to nanosecond-level current, and Core Independent Peripherals (CIPs) that offload tasks from the CPU to dedicated hardware blocks. Key features of the PIC18F46K40-I/MV include a 10-bit ADC with Computation (ADCC) for hardware-averaged and threshold-triggered conversions, a 5-bit DAC, two comparators, up to four CCP/PWM modules, the Complementary Waveform Generator (CWG), Windowed Watchdog Timer (WWDT), Hardware CVD for capacitive touch, and Zero-Cross Detect. Communication is supported through I2C, SPI, and an asynchronous EUSART, and the Peripheral Pin Select (PPS) mapping block reassigns digital peripherals to almost any I/O, enabling single-Layout PCB reuse across multiple product variants. The device's Core Independent Peripherals allow touch sensing, waveform generation, and CRC/Memory Scan to run in hardware without CPU intervention, which lets the core sleep longer and reduces average system current. Combined with nanoWatt XLP sleep currents in the sub-microamp range, the part is engineered for battery-powered and energy-harvesting applications where the CPU spends most of its time in retention. Typical applications include small-appliance controls, sensor nodes, capacitive touch user interfaces, industrial control boards, automotive interior subsystems, and consumer handheld products where space, power budget, and a flexible peripheral mix are critical constraints. In a design, reserve the 40-UQFN (5x5 mm) footprint, follow Microchip's CVD layout guidelines for touch applications (guard rings, hatched ground), and choose either the on-chip FVR or external references for ADC accuracy. For migrating designs, the PIC18F46K40 is pin-compatible with several K42-family and K22-family siblings in the same UQFN package, easing PCB reuse. This page synthesizes distributor pricing, drop-in alternatives drawn from Microchip's same-package K-family lineup, and practical design notes not collected in any single datasheet section.

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PIC18F46K40-I/P - 64KB Flash, 8-Bit MCU, 40-PDIP | Microchip
PIC18F46K40-I/P

PIC18F46K40-I/P - 64KB Flash, 8-Bit MCU, 40-PDIP | Microchip

The Microchip PIC18F46K40-I/P is an 8-bit PIC18 RISC microcontroller with 64 KB Flash program memory and 4 KB RAM, housed in a 40-pin PDIP through-hole package. It operates at up to 64 MHz (16 MIPS) across a 2.3 V to 5.5 V supply range, integrating Core Independent Peripherals (CIPs) such as CWG, WWDT, CRC/SCAN, 10-bit ADC2 with Computation, 5-bit DAC, and configurable logic cells. An 8-bit microcontroller (MCU) is a programmable processor that executes instructions 8 bits at a time, paired with on-chip Flash, RAM, EEPROM, and peripherals. The PIC18 family extends the baseline PIC16 architecture with a 16-bit instruction word, linear program memory up to 128 KB, hardware multiplier, and priority-interrupt handling. Within that hierarchy, PIC18F46K40-I/P sits in the K40 sub-family — Microchip's XLP eXtreme Low-Power + Core Independent Peripheral tier — targeting battery and 5 V mixed-signal designs. Headline features include 64 KB self-programmable Flash, 4 KB RAM, 256 B EEPROM, 36 I/O pins, 10-bit ADC up to 35 channels, up to 2 comparators, and PWM/CCP/CWG/HLT/CRC peripherals. XLP nanoWatt technology drives active current to ~50 µA/MIPS and sleep current below 100 nA, enabling years of operation from a single battery. The 64 MHz internal oscillator eliminates the external crystal in many designs. Architecturally, the K40 uses Harvard buses with separate program Flash and data SRAM paths, an 8x8 hardware multiplier for 16-bit math in one cycle, and a 31-level hardware stack. CIPs like CWG (Complementary Waveform Generator) and configurable logic cells let events trigger without CPU wake-up, reducing firmware load for sensor-front-end, motor-control, and SMPS housekeeping loops. Typical applications include industrial IoT sensor nodes, home appliance user-interface controllers, automotive body and lighting modules, USB-CDC/HID peripherals, low-power wireless sensor hubs, and small motor / fan speed controllers. Wide 2.3 V–5.5 V operation allows drop-in use on legacy 5 V rails alongside modern 3.3 V subsystems. Design tip: route a 0.1 µF decoupling capacitor within 3 mm of every VDD/VSS pair and keep VDD/VSS traces short. Leave ICSPCLK/ICSPDAT accessible for in-circuit programming and debugging, and consult the device errata before locking the final silicon revision. This page synthesizes distributor stock, same- and cross-brand drop-in alternatives, application notes, and parameter comparisons not aggregated on any single manufacturer or distributor page, helping engineers choose confidently between PIC18F46K40-I/P and its siblings for cost, AEC-Q100, or footprint reasons.

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