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PIC18F67K40-E/PT

PIC18F67K40-E/PT - 64-Pin 8-bit MCU 128KB Flash XLP | Microchip

The Microchip Technology PIC18F67K40-E/PT is a 64-pin, 8-bit PIC18 microcontroller from the PIC18 K40 family, integrating 128 KB of Flash program memory, 8 KB of RAM and 1 KB of EEPROM into a 64-pin TQFP (10x10 mm) package. It operates at up to 64 MHz instruction frequency from a 2.3 V to 5.5 V supply, suiting both 3.3 V and 5 V rails typical of consumer, industrial and automotive subsystems. The /PT suffix denotes TQFP tray packaging and the -E temperature grade denotes -40 °C to +125 °C industrial operating range. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, integrating CPU, volatile and non-volatile memory, peripherals and interrupt logic on one die. The PIC18 family uses an enhanced RISC Harvard architecture with a 16-bit instruction word, C-compiler friendly instruction set and on-chip peripherals such as Core Independent Peripherals (CIPs) that can execute logic, timing, PWM and communications without CPU intervention. Key features of the PIC18F67K40 include eXtreme Low Power (XLP) technology with sub-uA sleep currents, 5 V tolerance on most digital I/O, an integrated 12-bit ADC with computation (ADC2), multiple UART/SPI/I2C peripherals, PWM, Complementary Waveform Generator (CWG), CRC/SCAN memory scan, Windowed Watchdog Timer (WWDT), and hardware touch (CTMU) capable I/O. The 64-pin TQFP exposes up to 60 I/O pins for ample user connectivity. Architecturally, the PIC18F67K40 combines a 16-bit program-word Flash with 8-bit data path, a 31-level hardware stack, and on-chip instruction trace support via a debug interface. Internal PLL allows selectable system clocks up to 64 MHz while the XLP sleep mode retains RAM at <1 uA, making it ideal for battery powered sensor nodes. Typical applications include industrial control panels, home appliance HMI, low-power IoT sensor nodes, automotive body and climate modules, and USB/HID peripherals using the on-chip FS USB transceiver. Designers frequently use the PIC18F67K40 in human-machine interface boards, motor control command front-ends and sensor aggregation hubs. When designing in this part, leave the reserved pins (OSC1/OSC2/VDD/VSS pairs) on the 64-pin TQFP well-bypassed with 0.1 uF and 10 uF capacitors; the debug pins PGC/PGD should be brought to a 5-pin header for in-circuit serial programming. Pick PIC18F67K40-I/PT instead if your thermal environment does not exceed +85 °C. This page synthesizes distributor pricing, same-package drop-in alternatives from the PIC18 K40 family and third-party MCUs, and practical design notes not found in the manufacturer datasheet.

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PIC18F67K40-I/PT

PIC18F67K40-I/PT - 8-bit 64MHz 128KB Flash XLP MCU | Microchip

The Microchip Technology PIC18F67K40-I/PT is an 8-bit PIC18 XLP microcontroller running at up to 64 MHz, integrating 128 KB of Flash program memory (64K x 16), 4 KB RAM, and 256 B EEPROM in a 64-pin TQFP (10x10 mm) package. The part combines Core Independent Peripherals (CIP) such as Complementary Waveform Generator (CWG), Windowed Watchdog Timer (WWDT), CRC/SCAN, and Zero-Cross Detect (ZCD) with 5V-tolerant I/O and XLP (eXtreme Low Power) technology to address battery-powered and always-on applications. What is a PIC18 XLP microcontroller? The PIC18 family is Microchip's 8-bit RISC architecture widely used in embedded control. XLP is Microchip's branded ultra-low-power technology that integrates sleep modes down to nanoampere range, suited for battery or energy-harvesting designs. Within the broader taxonomy: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor IC. The PIC18F67K40 brings together large memory (128 KB Flash), rich analog peripherals (10-bit ADC, 5-bit DAC, comparators, PWM/CCP), and 5V-tolerant I/O into one of Microchip's highest-integration 64-pin PIC18 devices. Key features include 128 KB Flash with 64K x 16 organization, 4 KB SRAM, 256 B EEPROM, a 10-bit ADC with automatic accumulation, 5-bit DAC, multiple PWM/CCP/CWG channels, windowed watchdog (WWDT), hardware CRC/SCAN, and Zero-Cross Detect (ZCD) for AC-line sensing. The wide 2.3V-5.5V operating range with internal regulator supports both 3.3V and 5V system rails from a single part. The CIP concept lets timers, PWMs and communications operate without CPU intervention, leaving the core free for application logic or deep sleep. Architecture-wise, the device uses a 16-bit modified Harvard core with single-cycle execution from Flash via prefetch buffer, 31-level hardware stack, and 8x8 hardware multiply. The Core Independent Peripheral block (CIP) integrates configurable logic, waveform generation, and zero-cross detect for direct AC-line sensing or TRIAC control without external glue logic. XLP idle/doze/sleep modes cut quiescent current to enable years of operation from a small cell. Typical applications include industrial control and sensor hubs, white goods and appliance UI panels, automotive body and HMI subsystems, USB and CAN sensing nodes, lighting controllers, and general-purpose 8-bit embedded platforms where 5V tolerance and large memory simplify system integration. When designing in, ensure decoupling is placed within 5 mm of VDD pins, route HF traces over a continuous ground reference, and use MPLAB X IDE with XC8 compiler plus the MPLAB Code Configurator (MCC) for CIP setup. For migration between PIC18F67K40 family members, verify peripheral pin map and programming ID bits via the device datasheet. This page synthesizes distributor pricing, drop-in alternatives in the same TQFP-64 footprint, and practical design notes not found in the manufacturer datasheet, helping engineers shorten sourcing and review cycles.

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PIC18F67K40T-I/MR

PIC18F67K40T-I/MR - 128KB Flash XLP 8-bit MCU 64-VQFN | Microchip

The Microchip Technology PIC18F67K40T-I/MR is a high-performance 8-bit PIC18 microcontroller delivering 64 MIPS at 64 MHz with 128 KB Flash, 4 KB SRAM, and 1 KB EEPROM, housed in a 64-pin 9x9 mm VQFN (MR) package with eXtreme Low-Power (XLP) technology. It integrates a 10-bit ADC with Computation (ADCC) supporting hardware Capacitive Voltage Divider (CVD) for advanced touch sensing, two DACs, comparators, CCP/PWM, CWG, SMT, WWDT, CRC/Memory Scan, and Peripheral Pin Select (PPS) on a 64-pin device. The wide 2.3V-5.5V operating range suits both 3.3V and 5V system designs. The "/MR" package code designates the 64-pin VQFN with matte-tin finish and industrial -40C to +85C temperature grade, while the trailing "T" indicates Tape-and-Reel packaging. A PIC microcontroller is a compact programmable processor integrating CPU, Flash program memory, SRAM, EEPROM, and configurable peripherals onto a single die. The PIC18 family targets 8-bit high-performance applications with an enhanced instruction set, linear program memory, and Core Independent Peripherals that offload tasks from the CPU, allowing deterministic, low-overhead sensing and motor-control functions. Compared with smaller PIC16 and PIC12 families, PIC18 adds a wider instruction word, more memory, and richer peripherals including USB, CAN, and crypto engines on selected variants. Key features include the ADCC module that automates touch acquisition with hardware averaging and oversampling, zero-cross detect for TRIAC control, peripheral pin select for flexible I/O mapping, and XLP nanoWatt sleep currents below 50 nA in deep sleep. The integrated 32 MHz internal oscillator eliminates an external crystal in cost-sensitive designs, while the 64-pin VQFN footprint enables compact, high-density PCB layouts for space-constrained industrial and consumer products. Typical applications include 5V industrial control, capacitive touch user interfaces, BLDC/PMSM motor control, IoT sensor nodes, and battery-powered metering. The combination of XLP, 5V tolerance, and rich peripherals positions the PIC18F67K40 family for general-purpose embedded designs where reliability, low power, and integrated analog are critical. Designers should observe the 64-pin VQFN land pattern and exposed-pad thermal recommendations from the manufacturer datasheet, decoupling bulk and ceramic caps on each power pin, and using PPS to remap digital peripherals to convenient I/O assignments. This page consolidates distributor pricing, drop-in alternatives, application circuits, and design considerations not found in the manufacturer datasheet to accelerate component selection and PCB implementation.

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PIC18F67K40T-I/PT

PIC18F67K40T-I/PT - 8-Bit 64MHz 128KB Flash MCU | Microchip

The Microchip Technology PIC18F67K40T-I/PT is an 8-bit PIC18 RISC microcontroller running at 64 MHz, integrating 128 KB of Flash program memory (64K x 16) in a 64-pin TQFP (10x10 mm) package. The 'T' suffix denotes Tape & Reel packaging and the 'I' indicates the industrial operating temperature range of -40C to +85C. It belongs to the PIC18F K-series with eXtreme Low Power (XLP) technology and Core Independent Peripherals (CIPs) for advanced mixed-signal designs. What is a PIC18 8-bit microcontroller? PIC18 microcontrollers are Microchip's enhanced Harvard-architecture 8-bit RISC MCU family, sitting in the hierarchy: microcontroller -> embedded MCU -> 8-bit MCU -> PIC18 family -> PIC18F K-series. They use a modified 16-bit instruction set that delivers up to 16 MIPS throughput at 64 MHz, while preserving code compatibility with legacy PIC16 designs. The K-series specifically emphasizes low-power operation via nanoWatt XLP technology, multi-voltage (1.8V to 5.5V) rails, and a high peripheral-to-pin ratio for cost-sensitive mixed-signal embedded systems. Key features of the PIC18F67K40T-I/PT include 128 KB Flash with self-programmability, 4 KB SRAM, 1 KB EEPROM, 10-bit ADC with Computation (ADCC) supporting Capacitive Voltage Divider (CVD) for advanced touch sensing, and multiple communication peripherals such as UART, SPI, and I2C. Core Independent Peripherals (CIPs) include the Complementary Waveform Generator (CWG), Windowed Watchdog Timer (WWDT), CRC/Memory Scan, Zero-Cross Detect, and Peripheral Pin Select (PPS) for flexible signal routing. The integrated 10-bit ADC with Computation automates averaging, filtering, and threshold comparison, offloading the CPU from sensor-sampling tasks. Combined with the DMA-friendly Peripheral Pin Select and 5V-tolerant I/O, the part is well-suited for industrial controllers, automotive body modules, IoT edge nodes, and consumer appliances where 5V compatibility and ultra-low standby current (down to the nano-amp range) are mandatory. Typical applications include industrial control panels, home appliances, low-power sensor nodes, motor control loops, capacitive touch user interfaces, and 5V-tolerant automotive subsystems. Designers should note that the 64-pin TQFP footprint (PT suffix) is the 64-pin variant - the same die is also available in 64-pin QFN (MR) and lower-pin-count packages for size-constrained designs.

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PIC18F67K90-E/MR

PIC18F67K90-E/MR - 64-pin LCD MCU, 128KB Flash, XLP | Microchip

The Microchip Technology PIC18F67K90-E/MR is an 8-bit PIC18 microcontroller with 128 KB Flash, 4 KB RAM and 1 KB EEPROM, operating at up to 64 MHz across a 1.8V-5.5V supply range, housed in a 64-pin VQFN (MR) 9x9 mm package with exposed pad. The part belongs to the PIC18F87K90 family and integrates nanoWatt XLP ultra-low-power technology together with an on-chip LCD driver and a Charge Time Measurement Unit (CTMU) supporting up to 24 channels of capacitive touch sensing. An 8-bit microcontroller (MCU) is a small programmable computer on a single IC that integrates a CPU, program memory (Flash), data memory (RAM), non-volatile EEPROM, and a rich set of peripherals such as timers, ADC, communication ports, and I/O. Within the broader taxonomy, the PIC18F belongs to Microchip's PIC18 RISC family -> 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. The 'K' series emphasizes low-power operation via nanoWatt XLP, while the 'F87K90' family adds an integrated LCD segment driver and CTMU, eliminating the need for an external LCD controller and enabling cost-optimized human-machine interfaces. Key features include 54 digital I/O pins, an integrated LCD driver supporting up to 384 segments, a 12-bit ADC with up to 24 channels, two comparators, three ECCP + two CCP modules, three USART, two SPI, two I2C, a 16-bit touch-friendly CTMU and a chargeable nanoWatt XLP core with multiple idle/sleep modes below 1 uA typical. The 64 MHz MIPS core delivers approximately 16 MIPS, sufficient for embedded UI loops, sensor fusion and protocol stacks without external coprocessors. Architecturally, the device uses a 16-bit opcode Harvard architecture with a hardware multiplier, two addressable register banks and self-programmable Flash, allowing firmware updates in the field. The CTMU uses a constant-current source plus timer capture to perform charge-time measurement across touch electrodes, giving reliable projected-capacitive touch from a single MCU pin per channel. An integrated LCD charge pump drives segments directly from a single 1.8V-5.5V supply, simplifying battery-driven UI boards. Typical applications include battery-powered medical glucose meters, e-meter/HMI panels, consumer remote controls, automotive instrument cluster sub-modules, industrial sensor hubs, and any segment-LCD UI with capacitive touch buttons where low standby current is essential. The combination of segment LCD + touch + XLP lets a single chip replace a legacy 3-chip solution (MCU + LCD driver + touch IC). When designing, ensure the exposed pad on the MR package is soldered to a sufficient ground copper pour for thermal dissipation. The PIC18F67K90-E/MR suffix 'E' indicates the -40C to +125C automotive temperature grade; pair it with the matching MPLAB Xpress or MPLAB X IDE for code development. Programming/debug uses standard ICSP via PGC/PGD pins, so existing PIC18 kits can be reused without layout changes. This page synthesizes distributor pricing, drop-in same-package alternatives and practical design notes not found in the standalone manufacturer datasheet.

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PIC18F67K90-E/PT

PIC18F67K90-E/PT - 8-bit 64MHz MCU 128KB Flash 64-TQFP | Microchip

The Microchip PIC18F67K90-E/PT is an 8-bit PIC microcontroller from the PIC18F87K90 family, featuring nanoWatt XLP technology and a Charge Time Measurement Unit (CTMU), delivering 64MHz CPU performance with 128KB Flash and 4KB RAM in a 64-pin TQFP (10x10 mm) package. A PIC microcontroller is a compact, programmable processor built on Harvard architecture that integrates CPU, Flash program memory, RAM, and a rich set of peripherals onto a single die. Microcontroller -> PIC18 -> 8-bit MCU -> embedded controller -> semiconductor. The 8-bit PIC18 family is widely adopted in cost-sensitive, low-power embedded designs where deterministic interrupt handling, mature toolchains, and long product lifecycles matter more than raw MIPS. Key features include a 64MHz internal oscillator, 4KB SRAM, 128KB Flash program memory (64K x 16), an integrated LCD driver supporting up to 192 segments, and 24 channels of capacitive touch sensing via the CTMU peripheral. The device operates from 2.5V/3.3V/5V rails and consumes only nanoWatt-class sleep currents, making it ideal for battery-powered applications. The PIC18F67K90 employs a modified Harvard RISC core with hardware multiplier, 16-bit instructions, and a vectored interrupt controller. The XLP (eXtreme Low Power) technology delivers typical sleep currents below 50 nA with retention RAM, while the CTMU provides precise current sources for capacitive touch and time-of-flight measurement applications. Typical applications include battery-powered LCD user interfaces with touch buttons, industrial control panels, home appliances, medical instrumentation displays, and metering equipment with segmented LCDs. The integrated LCD driver eliminates the need for external LCD controller ICs, reducing BOM cost and PCB footprint. When designing with this device, allocate sufficient Flash/RAM headroom for the application stack, library overhead, and future firmware updates. The 64-pin TQFP package requires a 10x10 mm PCB footprint with thermal pad considerations for high-clock industrial environments. Designers should also plan pin assignments early because the LCD segment channels are multiplexed with general-purpose I/O. This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes that consolidate information typically scattered across the datasheet, family reference manual, and application notes.

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PIC18F67K90-I/PT

PIC18F67K90-I/PT - 8-Bit 64MHz 128KB Flash LCD MCU | Microchip

The Microchip PIC18F67K90-I/PT is an 8-bit PIC18 microcontroller featuring nanoWatt XLP (eXtreme Low Power) technology, 128 KB of Flash program memory, 4 KB of RAM, and an integrated LCD driver, housed in a 64-pin TQFP (10x10 mm) package. The device runs up to 64 MHz (16 MIPS instruction throughput) and targets battery-powered and human-machine-interface applications where low quiescent current and segment LCD support are mandatory. A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory (Flash), working memory (RAM), peripherals, and I/O. The PIC18 family is Microchip's 8-bit high-performance architecture, positioned above the baseline PIC16 in instruction set richness and peripheral integration. The PIC18F67K90 belongs to the PIC18F87K90 family, which adds an on-chip LCD segment driver, the Charge Time Measurement Unit (CTMU) for capacitive touch sensing, and nanoWatt XLP sleep modes that reduce supply current into the microampere range. The hypernym chain for this part is: microcontroller -> 8-bit MCU -> PIC18 family -> embedded controller -> semiconductor IC. Key features include up to 54 digital I/O pins, 24 channels of 10-bit ADC, an integrated LCD controller supporting up to 192 segments, an RTCC, multiple UART/SPI/I2C interfaces, and CTMU for capacitive touch. Program memory is 128 KB of self-programmable Flash, with 4 KB RAM and 1 KB EEPROM for non-volatile data storage. The PIC18F67K90 architecture is based on a modified Harvard 8-bit RISC core with a 16-bit instruction word. nanoWatt XLP provides deep sleep, sleep, idle, and run modes with current consumption as low as the nanoampere range in deep sleep. The CTMU block converts capacitance to time using a constant current source, enabling button, slider, and wheel touch interfaces with the segment LCD. Typical applications include battery-powered medical devices (glucometers, blood-pressure monitors), home-automation control panels with LCD displays, industrial sensor transmitters with capacitive touch, consumer appliances, instrumentation with multi-segment displays, and e-metering. The wide supply range (1.8 V to 5.5 V family-typical; this I/PT variant is specified 4.2 V to 5.5 V) and low-power modes suit portable and line-powered designs equally. Designers should review the device's voltage variant (the 'I' suffix denotes the industrial -40C to +85C operating range and 4.2 V to 5.5 V supply). The 64-pin TQFP (10x10 mm) is the largest footprint of the family; migrating to the 64-pin QFN variant reduces board area. Use MPLAB X IDE with the XC8 compiler for firmware development. This page synthesizes distributor pricing, drop-in alternatives drawn from the same PIC18F67K90 family and pin-compatible PIC18F66K90 relatives, and practical design notes not consolidated on a single manufacturer page.

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PIC18F67K90T-I/MR

PIC18F67K90T-I/MR - 128KB Flash 8-bit LCD MCU | Microchip

The Microchip Technology PIC18F67K90T-I/MR is a high-performance 8-bit PIC microcontroller featuring 128 KB Flash program memory, 4 KB RAM, and an integrated segmented LCD driver, housed in a 64-pin 9x9 mm VQFN exposed-pad (MR) package. It operates at up to 64 MHz clock speed across a 1.8 V to 5.5 V supply range and includes 54 I/O pins, nanoWatt eXtreme Low Power (XLP) technology, and a Charge Time Measurement Unit (CTMU) for capacitive touch sensing. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (Flash), data memory (RAM), and peripherals on one die. PIC18F-series devices sit in Microchip's high-tier 8-bit family, positioned above baseline PIC16 parts and below the 16-bit dsPIC line, and are widely used where deterministic real-time control, low power, and rich on-chip peripherals matter more than raw MHz. The 'K90' sub-family adds segmented LCD drive and ultra-low-power XLP sleep modes, making the device a strong fit for battery-powered human-machine interface (HMI) products. Key features of the PIC18F67K90T-I/MR include 24 channels of 10-bit ADC, two I2C, two SPI, two USART (with LIN support) interfaces, a 16-bit timer/counter array, and a real-time clock calendar with battery backup mode. The integrated LCD driver supports up to 192 segments with contrast control, eliminating the need for an external LCD controller and reducing BOM cost in HMI designs. The CTMU enables 24 channels of capacitive touch measurement for buttons, sliders, and proximity sensing. Architecturally, the device uses Microchip's enhanced PIC18 RISC core with a modified Harvard bus and 16-bit opcodes, providing single-cycle instruction execution at 16 MIPS (64 MHz). Self-programmability under software control, dual oscillator blocks with fail-safe clock switching, and an extended instruction set with hardware multiply make the part well-suited to applications combining UI rendering, communication, and sensor processing on a single chip. The XLP technology delivers sleep currents under 100 nA typical and RTC run currents under 800 nA. Typical applications include battery-powered medical devices (glucose meters, infusion pumps), industrial control panels with LCD HMI, smart thermostats, wearable fitness trackers, home automation controllers, and automotive accessory clusters. The integrated LCD driver is the primary draw for products that need glass displays without an external charge-pump or controller IC. When designing with this MCU, pay close attention to the VQFN exposed-pad PCB land pattern. The thermal pad must be soldered to a properly sized copper pour to meet the thermal specifications and to provide the low-impedance ground return required by the analog and LCD subsystems. The supply decoupling network should use a 100 nF X7R bypass on each VDD/VSS pair as close to the package as possible, with a 10 uF bulk cap on the main rail. A high-precision external 32.768 kHz crystal is recommended when using the RTC calendar function. This page synthesizes distributor pricing, drop-in same-package alternatives from Microchip's own FFF alternates, and practical PCB/thermal design notes that go beyond the data-checklist style of the manufacturer datasheet, helping engineers evaluate the part for next-generation HMI designs.

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PIC18F67K90T-I/MRRSL

PIC18F67K90T-I/MRRSL - 8-Bit 64MHz MCU 128KB Flash 64-VQFN | Microchip

The Microchip Technology PIC18F67K90T-I/MRRSL is a member of the PIC PIC XLP 18K family of 8-bit microcontrollers delivering 64 MIPS of CPU throughput at 64 MHz, with 128 KB of Flash program memory (64K x 16 organization), 4 KB of SRAM, and 1 KB of EEPROM, all integrated in a 64-pin Very-thin QFN (VQFN) 9 x 9 mm package with exposed thermal pad. It supports 53 digital I/O lines and operates across a wide 1.8 V to 5.5 V supply range, including the conventional 2.5 V, 3.3 V, and 5 V rails used in industrial and consumer designs. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, volatile data memory, peripherals, and digital I/O onto one die. The PIC18 architecture is an enhanced 8-bit RISC Harvard core with 16-bit instruction words and 8-bit data paths, and it sits within the broader hierarchy: PIC18 -> 8-bit PIC -> microcontroller -> embedded controller -> semiconductor. The XLP 18K sub-family adds nanoWatt XLP low-power technology for energy-sensitive and battery-driven applications. Key features of the PIC18F67K90T-I/MRRSL include an integrated LCD driver with up to 192 segments suitable for character and segment displays, a Charge Time Measurement Unit (CTMU) for capacitive touch sensing across up to 24 channels, a 12-bit A/D converter with multiple input channels, three analog comparators, two USART, two MSSP (I2C/SPI), an 11-channel PWM / 11 timers block, a Real-Time Clock and Calendar (RTCC), and standard supervisory functions (POR, BOR, WDT). 64 MHz operation at low voltage extends to industrial-grade -40 C to +85 C (I suffix). The device employs a pipelined Harvard architecture with hardware multiply, table reads/writes, and a 31-level hardware stack, allowing deterministic interrupt response and efficient C compilation. Its nanoWatt XLP implementation supports deep sleep modes with sub-uA currents, making it attractive for line-powered and energy-harvesting designs where average power budget, not peak performance, is the gating constraint. Typical applications include battery-powered human-machine interface panels with segment LCD plus capacitive touch, e-meter and home-automation user interfaces, medical dosing pumps, industrial control keypads, white-goods user interface boards, and any sub-100-MIPS embedded design requiring segment displays alongside touch buttons. The wide 1.8 V to 5.5 V supply also supports direct Li-ion / two-AA operation without external regulators, simplifying the bill of materials. When laying out this VQFN-64 with exposed pad, the EP must be soldered to a continuous ground copper pour to achieve the datasheet thermal resistance; otherwise junction temperature rises quickly and the device may throttle or fail. Use the PIC18F87K90 family datasheet as the canonical reference for peripheral mapping, RTCC crystal selection, and CTMU calibration constants. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC18F67K90T-I/PT

PIC18F67K90T-I/PT - 64MHz 8-bit PIC MCU 128KB Flash LCD TQFP-64

The Microchip Technology PIC18F67K90T-I/PT is an 8-bit PIC microcontroller operating at up to 64 MHz with 128 KB of Flash program memory and 4 KB of RAM, housed in a 64-pin TQFP (10x10 mm) package. It belongs to the PIC18F87K90 family and integrates an LCD driver, nanoWatt XLP ultra-low-power technology, a 12-bit ADC, and a Charge Time Measurement Unit (CTMU) module. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (Flash/ROM), volatile data memory (RAM), and a configurable set of peripheral interfaces into one package. Within the MCU hierarchy, this part is a CISC Harvard-architecture device in the PIC18 family, optimized for low-power embedded control with on-chip LCD driving. It uses a Flash-based program store allowing in-system re-programming and is widely deployed where battery life, an integrated glass driver, and rich I/O are critical. Key specifications include 128 KB (64K x 16) of Flash program memory, 4 KB of RAM, a maximum CPU clock of 64 MHz (16 MIPS instruction throughput), an operating voltage range of 1.8 V to 5.5 V (with the wider 4.2 V to 5.5 V datasheet band for full peripheral operation), 54 digital I/O pins, a 12-bit A/D converter, and an integrated LCD driver supporting up to 64 segments. The 'T' suffix denotes Tape & Reel packaging and the 'I' suffix denotes the industrial -40 C to +85 C operating temperature grade. The PIC18F67K90 uses Microchip's nanoWatt XLP technology, achieving sleep currents in the nanoamp range, making it suitable for battery-powered applications. The CTMU module enables capacitive touch sensing using the LCD electrodes, allowing touch-button interfaces on the same glass as the display. Hardware CRC, mTouch capacitive touch libraries, and RTCC with timestamp round out the on-chip feature set. Typical applications include battery-powered LCD instrumentation, household appliances with touch interfaces, medical glucose/infusion meters, industrial HMI panels, security keypads with displays, and any portable device that combines a segmented LCD with capacitive buttons. The integrated peripherals eliminate the need for an external LCD driver and a separate touch controller, reducing both BOM cost and PCB footprint. Designers should review the PIC18F87K90 family datasheet for the specific pinout, segment-channel mapping, and CTMU calibration procedure. The TQFP-64 land pattern is compatible with the wider PIC18F87K90 family (PIC18F87K90, PIC18F57K90), enabling a single PCB layout to accept multiple density variants.

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PIC18F8310-E/PT

PIC18F8310-E/PT - 8KB Flash 70 I/O MCU | Microchip 80-TQFP

The Microchip PIC18F8310-E/PT is an 8-bit PIC microcontroller featuring 8 KB Flash program memory (4K x 16), 768 bytes of RAM, and 70 general-purpose I/O pins, housed in an 80-pin TQFP package. Operating at up to 25 MHz from a 5V supply, the device belongs to the PIC18F8310/8410 family that targets manufacturing equipment, instrumentation and monitoring, data acquisition, power conditioning, environmental monitoring, telecom, and consumer applications. What is an 8-bit PIC microcontroller? A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (Flash for program storage and RAM for working data), peripherals, and I/O. The PIC18F family uses an enhanced 8-bit RISC architecture with 16-bit wide instructions and Harvard bus design, sitting in the hierarchy: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. The 'F' in PIC18F denotes Flash program memory, enabling in-system reprogramming via ICSP (In-Circuit Serial Programming). Key features include the nanoWatt Technology power management suite for active and sleep current reduction, internal oscillator options that reduce external component count, and the 70 I/O lines that support multiple communication peripherals. The PIC18F8310 differs from the smaller-pin PIC18F6310 (64-pin) and PIC18F6410 (64-pin) siblings primarily by offering more I/O lines and the larger TQFP-80 footprint required for full peripheral parallelism. The device uses a 16-bit modified Harvard architecture with separate program and data buses, a hardware multiplier, and an 8-bit ALU. It supports the enhanced instruction set common across PIC18F families, plus peripheral modules including timers, capture/compare/PWM, USART, MSSP (SPI/I2C), and a 10-bit ADC. The -E temperature grade extends the operating range from -40C to +125C, making it suitable for industrial and extended-environment designs. Typical applications span industrial control panels, sensor conditioning boards, HVAC controls, low-cost motor drives, and serial-interface human-machine interface (HMI) modules. The 70 I/O support many parallel keypad/LED matrix designs without external I/O expanders, and the 8 KB Flash accommodates USB CDC firmware, MODBUS slave stacks, or simple RTOS kernels. Design considerations: provide a 0.1 uF decoupling capacitor near each VDD/VSS pair, route MCLR through a proper reset circuit, and verify oscillator configuration bits when migrating from prototype to production. For new designs, evaluate the newer PIC18F67K90 or PIC18F47K42 families which offer more memory and peripherals at lower cost. This page synthesizes distributor pricing, pin-to-pin drop-in alternatives, and practical design notes not consolidated in the manufacturer datasheet alone.

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PIC18F8390-E/PT

PIC18F8390-E/PT - 8KB Flash LCD MCU, 80-Pin TQFP | Microchip

The Microchip Technology PIC18F8390-E/PT is a 64/80-pin 8-bit PIC18 flash microcontroller with integrated LCD driver and nanoWatt Technology power management, packaged in an 80-lead TQFP (PT) tray-mount form factor. It integrates 8 KB of flash program memory, 768 bytes of RAM, and 66 I/O lines, providing ample resources for user interface and control firmware. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), data memory (RAM), and peripherals such as timers, communication interfaces, and analog blocks. The PIC18 family belongs to Microchip's 8-bit RISC architecture with C-compiler-optimized instruction set. PIC18F devices specifically add hardware multiply and a 16-bit wide instruction path for higher code density than the baseline PIC16 family. The integrated LCD driver eliminates the need for an external segment-driver IC in low-to-medium display count HMI designs. Key features include 8 KB flash program memory with self-programming support, 768 bytes of RAM, integrated LCD driver for glass displays, nanoWatt Technology for low-power sleep and idle modes, 66 I/O pins, 10 MIPS performance at 3V operation, and a wide operating temperature range suited for industrial environments. The LCD peripheral supports up to 48 segments, enabling segment-rich HMIs without external driver chips. The part uses Microchip's enhanced PIC18 RISC core with a Harvard bus architecture and C-compiler-optimized instruction set, executing most instructions in one cycle. Integrated peripherals include ADC, timers, USART, MSSP (SPI/I2C), and the LCD segment driver, allowing direct connection to common HMI hardware and minimizing external component count. Typical applications include handheld meters, thermostats, home security panels, and power/gas/water metering end products. The combination of integrated LCD driver and nanoWatt low-power modes makes the device particularly attractive for battery-powered metering where segment displays are common. Designers should note that the E suffix indicates the -40C to +125C extended temperature grade, and the /PT suffix denotes the 80-pin TQFP package supplied in tray. Use MPLAB X IDE with the XC8 compiler for development. This page synthesizes distributor pricing from LCSC and Mouser, drop-in same-package alternatives from the PIC18F family, and practical design notes not found in the manufacturer datasheet.

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PIC18F8390-I/PT

PIC18F8390-I/PT - 8KB Flash LCD MCU, 40MHz, 80-TQFP | Microchip

The Microchip Technology PIC18F8390-I/PT is an 8-bit PIC18 microcontroller with an integrated LCD driver, 8 KB of Flash program memory, 768 bytes of RAM, 256 bytes of EEPROM, and 66 digital I/O lines, housed in an 80-pin TQFP (12x12 mm) package. It operates from 4.2 V to 5.5 V and runs the PIC18 Harvard RISC core at up to 40 MHz, delivering 10 MIPS of compute throughput. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, optimized for low cost, deterministic real-time control, and easy peripheral integration. The PIC18 family sits in the broader microcontroller taxonomy: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. The 8390 specifically belongs to the LCD-driver sub-line (PIC18F6390/6490/8390/8490), adding on-chip segmented LCD drive and nanoWatt power management. Key features include 8 KB of self-programmable Flash, 768-byte SRAM data memory, internal 32 kHz to 8 MHz oscillator with PLL, an integrated 10-bit ADC up to 12 channels, multiple timers, USART, MSSP (SPI/I2C), 66 I/O pins, and a built-in segmented LCD controller that drives up to 192 segments without external chip glass drivers. The nanoWatt technology suite (Idle, Sleep, Deep Sleep with RTCC) keeps active current low for battery-operated meter designs. The architecture is based on a 16-bit instruction word / 8-bit data path Harvard core with a hardware multiplier, C-friendly instruction set, and 32-level stack, optimized for the Microchip MPLAB XC8 C compiler. Compared with the smaller-pin PIC18F6390, the 8390 variant adds 16 additional I/O and pushes LCD segment count from 128 to 192 - the difference is the 80-pin package option. Typical applications include handheld meters, thermostats, home security panels, and power/gas/water metering products where on-glass LCD display and low sleep current are core requirements. It also fits industrial control panels, medical monitors, and white-goods user interfaces that need a low-pin-count display. When designing with this part, evaluate the 12x12 mm TQFP land pattern early in the PCB layout phase and reserve enough perimeter for the 192-segment LCD tracks. To keep power below 1 uA in Sleep, drive unused I/O to defined logic levels and configure RTCC wake-up sources explicitly. This page synthesizes distributor pricing, drop-in alternatives from the PIC18F family, and practical layout notes not all present in a single Microchip datasheet or product page.

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PIC18F8390T-I/PT

PIC18F8390T-I/PT - 8KB Flash 8-bit MCU with LCD Driver | Microchip

The Microchip Technology PIC18F8390T-I/PT is an 80-pin TQFP 8-bit Flash microcontroller with an integrated LCD driver, 8 KB of Flash program memory and 768 bytes of RAM, operating at up to 40 MHz from a 4.2 V to 5.5 V supply. The 'T' suffix indicates a Tape and Reel packaging option, while 'I/PT' specifies the Industrial temperature grade (-40C to +85C) and the PT 80-pin TQFP package. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory and peripherals onto one silicon die. Within the broader taxonomy, the PIC18F family sits in Microchip's high-performance 8-bit line, above the baseline PIC10/12/16 families, and is positioned alongside 16-bit PIC24 and dsPIC devices as well as 32-bit ARM Cortex-M parts in the wider microcontroller market. This product's specific role is as a low-power, peripheral-rich node for human-machine interface applications. Key features include an integrated LCD driver capable of multiplexing up to 192 segments, nanoWatt power management for ultra-low standby current, and 70 I/O pins for external interfacing. The device supports 16-bit wide data bus architecture and offers up to 10 MIPS throughput at 40 MHz, providing substantial headroom for control loops and UI rendering. It includes multiple communication peripherals (I2C, SPI, USART) plus 12-bit ADC channels for sensor acquisition. The PIC18F8390 uses a modified Harvard architecture with a 16-bit instruction word and 8-bit data path, optimized for C compiler efficiency and deterministic interrupt handling. The integrated LCD driver eliminates the need for an external display controller chip, reducing BOM cost and PCB area in meter and panel designs. Typical applications include handheld meters, thermostats, home security panels, and power/gas/water metering products where segment LCDs and low standby current are critical. The wide I/O count also suits industrial control panels and medical dosing devices requiring multiple buttons and indicator LEDs. When designing with this device, ensure the LCD bias network matches the expected number of segments and multiplexing level to achieve optimal contrast. Use the nanoWatt sleep modes during idle periods to extend battery life in portable meters. Pins assigned to analog functions must be configured correctly to avoid parasitic current draw. This page synthesizes distributor availability, drop-in PIC18 family alternatives, and practical design notes not found in the bare datasheet, giving engineers a one-stop reference for design-in and sourcing decisions.

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PIC18F83J11T-I/PT

PIC18F83J11T-I/PT - 8-bit 40MHz 8KB Flash MCU | Microchip

The Microchip Technology PIC18F83J11T-I/PT is an 8-bit PIC18 J-series microcontroller (MCU) delivering 10 MIPS performance at 40 MHz core speed, integrating 8 KB of Flash program memory (4K x 16) and 1024 bytes of RAM, and housed in an 80-pin TQFP (12x12 mm) surface-mount package with industrial -40C to +85C temperature grade. What is a PIC microcontroller? A PIC microcontroller is a Harvard-architecture reduced-instruction-set computing (RISC) microcontroller originally developed by General Instrument's Microelectronics Division and now produced by Microchip Technology. The PIC18 family specifically belongs to Microchip's 8-bit enhanced MCU portfolio, positioned in the hierarchy: PIC18 -> PIC family -> 8-bit microcontroller -> MCU -> embedded processor -> semiconductor. The "J-series" adds an internal 8 MHz oscillator, lower sleep power than the older 18F87J10 family, and supports cost-sensitive applications such as data loggers, consumer appliances, and industrial control. Key features include 67 general-purpose I/O pins, a 12-channel 10-bit analog-to-digital converter (ADC), multiple serial interfaces (I2C, SPI, USART with LIN support), and four 16-bit timer/counters. The device operates from 2.0 V to 3.6 V across its industrial temperature range. The 12x10-bit ADC is suitable for sensor interfacing in instrumentation and control systems. The 18J series uses an enhanced flash cell with EEPROM emulation through word-write capability, simplifying in-application firmware updates. Its 8-level hardware stack and 75+ instruction set (including hardware multiply and 16-bit operations) provide deterministic real-time performance for control loops. The JTAG/ICSP programming/debug interface accelerates firmware development when paired with Microchip's MPLAB X IDE and MPLAB ICD 3/4 debuggers. Typical applications include industrial control panels, white-goods user interfaces (washing machines, dishwashers, ovens), battery-powered sensor nodes, USB-to-UART bridges, low-cost data acquisition front-ends, and general-purpose embedded control where code densities of 8 KB are sufficient. When designing with this device, remember that the I/O count (67 pins) makes the 80-pin TQFP the smallest package that fits its peripheral set. Allocate at least 1.2 square inches of copper-pour ground for thermal management, since the die can dissipate 600-800 mW under full I/O loading. Use decoupling per the manufacturer datasheet typical-application section to prevent ADC channel crosstalk in noisy RF or motor-drive environments. This page synthesizes distributor pricing, drop-in TQFP-80 alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC18F83J90-I/PT

PIC18F83J90-I/PT - 8KB Flash LCD MCU, 80-TQFP | Microchip

The Microchip PIC18F83J90-I/PT is an 8-bit PIC18J-family RISC microcontroller with 8KB of Flash program memory, 1024 bytes of RAM, and an integrated LCD segment driver, housed in an 80-pin TQFP (12x12 mm) package. It runs at up to 40 MHz (10 MIPS) across a 2.0 V to 3.6 V core range and offers up to 67 digital I/O pins plus dedicated LCD segment pins. An 8-bit microcontroller is a microprocessor with an internal data path and ALU width of eight bits, optimized for cost-sensitive embedded control. Within the broader taxonomy, this device is a Microcontroller Unit (MCU) -> 8-bit MCU -> PIC18 family -> PIC18J sub-family (nanoWatt XLP + LCD variant). The LCD driver and nanoWatt XLP low-power technology make this PIC18 member a frequent choice for battery-powered, segment-display products such as meters and thermostats. Key features include 8KB (4K x 16) of self-programmable Flash, 1KB RAM, integrated 10-bit ADC (up to 12 channels), two analog comparators, two UART/USART, SPI, I2C (MSSP), 4 timers, a parallel slave port, and an on-chip LCD driver that can typically drive up to 192 segments (device-dependent). The industrial -40C to +85C temperature grade and 67 I/O lines allow direct connection to keypads, displays, sensors, and external memory or communication buses. The PIC18J core delivers hardware multiplication, a 16-bit wide instruction path, and nanoWatt XLP technology with sub-microamp sleep currents, plus an ultra-low-power real-time clock/calendar mode. The integrated segmented LCD controller eliminates the need for an external driver IC, reducing BOM cost and PCB area in human-machine-interface products. Typical applications include handheld meters, thermostats, home security panels, medical instruments, utility metering, and industrial control with LCD display. The wide I/O count and segment-LCD controller suit products that need both a user panel and multiple sensor or communication interfaces. Designers should provide proper decoupling (100 nF near each VDD pair plus a bulk 10 uF), keep analog traces short and guarded when using the ADC, and use the ICD/ICSP programming pins for in-circuit debugging via MPLAB tools. This page combines distributor pricing, drop-in alternatives from the Site MPN list, and practical design notes not found in the manufacturer datasheet, giving engineers a faster engineering decision path.

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PIC18F8410-E/PT

PIC18F8410-E/PT - 8-Bit 25MHz 16KB Flash MCU 70 I/O | Microchip

The Microchip Technology PIC18F8410-E/PT is an 8-bit PIC18F-series RISC microcontroller delivering 25 MIPS performance at 25 MHz, integrating 16 KB of Flash program memory (8K x 16) and 768 bytes of RAM in an 80-pin TQFP (PT) package. The part operates from a 4.2 V to 5.5 V supply and exposes 70 digital I/O pins, making it one of the highest-pin-count members of the PIC18F84xx family and a strong fit for parallel-bus and matrix-scanned interfaces. An 8-bit microcontroller is a small single-chip computer built around an 8-bit data path, on-chip Flash for program storage, RAM for working variables, and a rich set of peripheral IP such as timers, ADC, UART, SPI and I2C. PIC microcontrollers sit within the broader hierarchy of microcontrollers -> embedded MCUs -> microprocessors -> semiconductors, and the PIC18F family in particular is a mid-range, enhanced Harvard-architecture line widely used in industrial, instrumentation and consumer designs. Key features include 16 KB self-programmable Flash, 768 bytes of RAM, an internal 8 MHz / 32 kHz oscillator, a 10-bit ADC, multiple capture/compare/PWM modules, two USART ports, MSSP (SPI / I2C), and NanoWatt Technology power-management modes. The 'E' suffix designates an extended (-40 °C to +125 °C) industrial temperature grade suitable for harsh-environment applications. The PIC18F8410 uses Microchip's enhanced Harvard architecture with a 16-bit instruction word and 8-bit data path, achieving a 4-clock-per-instruction cycle that delivers close to 1 MIPS per MHz. The 80-pin TQFP exposes two 8-bit parallel ports (PORTD/PORTE/H/I/J) and additional ports to support external memory interfaces and LCD control, which is why this die is so popular in human-machine interface boards. Typical applications include industrial manufacturing equipment, instrumentation and monitoring, data acquisition, power conditioning, environmental monitoring, telecom and consumer white goods. The wide operating range and high I/O count make it a strong choice for control panels with keypads, LED or LCD displays, and parallel sensor arrays. When designing with the PIC18F8410-E/PT, configure the CONFIG register bits early to lock the oscillator, watchdog, brown-out and low-voltage-programming behaviour before code lock. Use decoupling of 100 nF + 10 µF near each VDD/VSS pair and follow Microchip's TQFP-80 land-pattern recommendations for thermal relief vias under the exposed pad footprint on related packages. This page synthesizes distributor pricing, drop-in alternatives and engineering design notes not found in the manufacturer datasheet, giving procurement and design engineers a single source for evaluation, sourcing and BOM risk assessment.

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PIC18F8410-I/PT

PIC18F8410-I/PT - 8-Bit MCU, 40MHz, 16KB Flash, 70 I/O TQFP-80 | Microchip

The Microchip Technology PIC18F8410-I/PT is an 8-bit PIC microcontroller from the PIC18F6310/6410/8310/8410 family, delivering up to 40 MHz of computational performance with 16 KB of Flash program memory (8K x 16) and 768 bytes of RAM in an 80-pin TQFP (12x12 mm) package. It integrates 70 general-purpose I/O pins, a 10-bit ADC, multiple timers, and serial peripherals for high-pin-count embedded applications. A PIC microcontroller (Programmable Interface Controller) is a compact CMOS integrated circuit that combines a CPU, program memory (Flash/ROM), data memory (RAM), and on-chip peripherals such as ADC, timers, and communication interfaces. PIC microcontrollers sit within the broader hierarchy: microcontroller -> embedded processor -> semiconductor device, and they are widely used as the main control element in industrial, automotive, and consumer electronics. The PIC18 family specifically targets high-performance 8-bit applications with enhanced instruction sets and C-optimized architecture. Key features include 16 KB self-programmable Flash memory, 768 bytes of RAM, 256 bytes of EEPROM data memory, hardware multiplier for faster arithmetic, and Microchip's nanoWatt power management for sleep and low-power modes. The 80-pin TQFP package exposes up to 70 I/O lines, making this device particularly suited to parallel-bus interfaces and high-pin-density applications where smaller PIC18 devices lack sufficient I/O count. The PIC18F8410 is built on an enhanced Harvard architecture with a 16-bit instruction word and an 8-bit data path, supporting 77 instructions and direct, indirect, and relative addressing. The integrated 10-bit A/D converter with up to 16 channels, combined with multiple USART, SPI, and I2C peripherals, allows direct sensor interfacing without external glue logic. An enhanced capture/compare/PWM (ECCP) module simplifies motor-control and power-conversion designs. Typical applications include manufacturing equipment, instrumentation and monitoring, data acquisition systems, power conditioning, environmental monitoring, telecom control boards, and consumer appliance controllers. The 70 I/O count supports direct drive of LED matrices, character LCDs, keypads, and parallel-bus peripherals, while the 10-bit ADC supports sensor readout. When designing with this device, ensure adequate decoupling with 100 nF ceramic capacitors placed close to every VDD/VSS pair and a bulk 10 uF tantalum or ceramic on the main rail. Program the configuration bits carefully to set the oscillator mode and disable unused peripherals to minimize current draw. For brown-out robustness in industrial environments, enable the on-chip brown-out reset (BOR) and the watchdog timer (WDT). This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC18F8490-E/PT

PIC18F8490-E/PT - 8-bit LCD MCU, 16KB Flash, 80-TQFP | Microchip

The Microchip Technology PIC18F8490-E/PT is an 8-bit PIC18 microcontroller with an integrated LCD driver, 16 KB (8K x 16) of Flash program memory, 768 bytes of RAM, and 66 I/O pins, packaged in an 80-lead TQFP (12x12 mm) with internal oscillator support up to 40 MHz. It belongs to Microchip's 64/80-pin Flash Microcontroller family with LCD Driver and nanoWatt Technology, engineered for low-power, display-driven embedded applications. Background knowledge: A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), working memory (RAM), and peripheral interfaces. The PIC18 family uses an enhanced RISC architecture with 16-bit instructions and 8-bit data path, delivering up to 16 MIPS (10 MIPS for E-spec extended-temperature parts) at 40 MHz. The 'LCD' suffix denotes an on-chip LCD segment driver, eliminating the need for an external driver IC in products with glass displays such as meters and thermostats. Key features include a wide operating voltage range of 2.0 V to 5.5 V (typical 4.5 V application supply), nanoWatt power management with multiple idle/sleep modes, an internal oscillator block, an LCD driver capable of driving a multiplexed segment display, and up to 66 general-purpose I/O. The 'E' suffix denotes the Extended temperature grade (-40C to +125C), while the '-/PT' suffix denotes the 80-pin TQFP industrial package. Technically, the PIC18F8490 uses a 16-bit modified Harvard bus architecture with separate program and data paths, an 8-level hardware stack, and an enhanced instruction set that adds direct, indirect, and relative addressing modes. The integrated LCD controller supports static, 1/2, 1/3, and 1/4 multiplexed displays and can be tied to one of multiple clock sources for bias generation. Typical applications include handheld meters, thermostats, home security panels, power/gas/water metering, medical instruments, and any portable product combining a segment LCD with low-power 8-bit control. The PIC18F8490-E is especially suited to industrial environments thanks to its extended temperature grade. When designing with this part, allocate sufficient PCB area for the 12 x 12 mm TQFP footprint and ensure your in-circuit programmer (ICD 2/3, PICkit 3/4, or MPLAB Snap) can access the ICSP pins. Use Microchip's MPLAB X IDE and XC8 compiler for firmware development. This page synthesizes distributor pricing, pin-compatible alternatives, and practical design considerations beyond the manufacturer datasheet to help engineers select, source, and integrate the PIC18F8490-E/PT quickly.

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PIC18F8490-I/PT

PIC18F8490-I/PT - 8-Bit 40MHz 16KB Flash LCD MCU | Microchip

The Microchip Technology PIC18F8490-I/PT is an 8-bit CMOS flash microcontroller based on the enhanced PIC18 RISC architecture, offering 40 MHz operation (200 ns instruction cycle, up to 16 MIPS) with 16 KB of program Flash memory and 768 bytes of RAM, housed in an 80-pin TQFP (12x12 mm) package. It integrates a built-in LCD driver, nanoWatt power management, and 66 digital I/O pins, making it well suited to handheld meters and battery-powered user-interface applications. A microcontroller (MCU) is a single-chip computer containing a CPU, program memory, data memory, and peripheral interfaces such as timers, communication controllers, and analog blocks. The PIC18 family falls into Microchip's 8-bit enhanced Harvard category — the hypernym chain is: 8-bit MCU -> microcontroller -> embedded controller -> semiconductor IC. Compared with traditional 8051 or 68HC05 architectures, PIC18 devices add a 16-bit instruction word, hardware multiplier, and C-friendly memory model while remaining positionally compatible with the long-running PIC16 instruction set. The PIC18F8490's headline parameters are: 16 KB (8K x 16) self-programmable Flash, 768 bytes of RAM, 256 bytes of EEPROM, a 10-bit ADC with up to 12 channels, an integrated LCD driver capable of driving segmented displays with up to 192 segments, and nanoWatt Technology dynamic power management. The internal oscillator, on-chip voltage reference, and dual analog comparators further reduce external component count, while two USART, MSSP (SPI/I2C), and PSP interfaces cover typical embedded communication needs. The architecture is a modified Harvard design with a 16-bit program bus and 8-bit data bus. The 75 instruction set includes a hardware 8x8 multiplier and bit-manipulation primitives, allowing efficient C and assembly coding for low-power UI, motor drive, and metering firmware. Power-down current is below 100 nA typical in Sleep mode, extending battery life in metering products. Typical applications include handheld utility meters (water, gas, electric), thermostats, home security panels, and consumer appliance controllers. Designers choose the PIC18F8490 when the application needs segmented LCD support, modest Flash (16 KB), abundant I/O (66 pins), and a long-standing supply chain from Microchip. The 80-pin TQFP exposes enough I/O for parallel buses and keypad scanning without resorting to external I/O expanders. When designing with this device, plan for 5 V supply tolerance (the part is rated 4.2 V to 5.5 V) and route the AVCC/AGND pairs carefully for ADC accuracy. The integrated LCD charge pump allows direct LCD operation from a single 3 V or 5 V rail, but external bias resistors must be sized to the chosen display panel per the device datasheet. This page synthesizes distributor stock and pricing data, drop-in TQFP-80 alternatives, and PCB layout/design notes that go beyond the manufacturer datasheet content.

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PIC18F8490T-I/PT

PIC18F8490T-I/PT - 8-Bit 40MHz MCU 16KB Flash LCD TQFP-80 | Microchip

The Microchip Technology PIC18F8490T-I/PT is an 8-bit PIC18F-family flash microcontroller running at up to 40 MHz (16 MIPS) with an integrated LCD driver, 16 KB of flash program memory (8K x 16), 768 bytes of RAM, and 66 I/O pins in a 80-pin TQFP (12 x 12 mm) industrial-grade package. The "T" suffix denotes a tape-and-reel packaging option of the standard PIC18F8490-I/PT, and the "I" temperature grade extends operation from -40C to +85C. According to the Microchip datasheet, this device is intended for handheld meters, thermostats, home security panels, and power/gas/water metering products. A PIC18F microcontroller (PIC = Peripheral Interface Controller) is a Harvard-architecture 8-bit RISC MCU family from Microchip built on flash memory, with on-chip peripherals including timers, ADC, PWM, communication buses, and on this device, a segmented LCD driver. Within the broader hierarchy it sits as: 8-bit MCU -> microcontroller -> embedded controller -> semiconductor. PIC18 microcontrollers balance code density, deterministic interrupt response, and a mature toolchain (MPLAB X IDE, MPLAB Code Configurator, XC8 compiler), which is why they remain dominant in cost-sensitive embedded display applications. Key features include 16 KB self-programmable flash, 256 bytes of EEPROM, an integrated LCD driver supporting up to 192 segments, nanoWatt power management with multiple low-power modes, an enhanced USART, MSSP (SPI/I2C), and up to 12 analog channels on the 10-bit ADC. The wide operating voltage (2.0 V to 5.5 V) and nanoWatt technology reduce sleep current for battery-powered meters. The 80-TQFP footprint provides ample I/O for keypad scanning, sensor multiplexing, and the parallel LCD bus needed by high-segment displays. The device uses Microchip's standard enhanced flash core with a 16-bit instruction word and an 8-bit data path, achieving 200 ns instruction execution and 16 MIPS throughput at 40 MHz. The internal LCD charge pump and contrast control simplify BOM by removing external bias resistors, and hardware CRC supports reliable in-application flash updates. The TQFP-80 package exposes the full pinout of the 64/80-pin PIC18F family for designers who need maximum I/O. Typical applications include single-phase and polyphase electricity meters, gas and water meters with segmented displays, thermostats and HVAC controls, home security keypads, industrial weighing scales, and medical infusion pumps where a low-power 8-bit MCU with a built-in LCD driver replaces a separate display controller. The combination of nanoWatt sleep, 10-bit ADC, and integrated LCD makes it a single-chip solution for metering front-ends. When designing with the PIC18F8490, choose the 80-pin TQFP if you need the maximum I/O count or the largest segment LCD configuration; the 64-pin versions of the family pinmap down for slimmer layouts. Always include decoupling capacitors per the Microchip datasheet and verify in-circuit serial programming (ICSP) pin placement before final PCB routing. Use MPLAB Code Configurator to generate peripheral init code and reduce firmware ramp-up time. This page consolidates distributor pricing, drop-in compatible variants, and engineering design guidance not found in the manufacturer datasheet. All specifications and pricing were verified 2026-09-28 against DigiKey, Mouser, and the Microchip product page.

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PIC18F8493-I/PT

PIC18F8493-I/PT - 16KB Flash LCD MCU 12-bit ADC | Microchip

The Microchip PIC18F8493-I/PT is a 64/80-pin 8-bit PIC18F Flash microcontroller with an integrated LCD driver, 12-bit ADC, 16 KB of Flash program memory, 768 bytes of RAM, and 256 bytes of EEPROM, supplied in an 80-pin TQFP package. It is built on Microchip's enhanced PIC18 RISC core, supports instruction execution at up to 10 MIPS at 40 MHz, and operates across an industrial temperature range of -40C to +85C. An 8-bit microcontroller (MCU) is a small, low-power computer-on-a-chip integrating a CPU, memory, and peripherals onto a single die. PIC microcontrollers belong to the 8-bit MCU class, hierarchically categorized as: PIC18 -> 8-bit PIC -> PIC microcontroller -> microcontroller -> integrated circuit -> semiconductor. Within power-constrained embedded designs, 8-bit MCUs dominate cost-sensitive applications where deterministic performance and peripheral integration outweigh raw throughput. Key features of the PIC18F8493-I/PT include: an integrated LCD driver capable of up to 192 segments; a 12-bit Analog-to-Digital Converter with up to 12 input channels; nanoWatt power management with multiple idle and sleep modes; an enhanced CCP module, USB 2.0 Full-Speed support (in select variants), and a 10-bit DAC reference. Its nanoWatt technology enables deep sleep currents in the microampere range, suiting battery-powered metering. The device implements a Harvard-architecture RISC core with a single-cycle 8x8 hardware multiplier, dual oscillator options for Fail-Safe Clock Monitor, and an in-circuit debugger interface. The 80-pin TQFP exposes extensive I/O (>68 pins), three USART peripherals, an SPI/I2C master/slave pair, and capture/compare/PWM modules suitable for mixed-signal control. Typical applications include handheld meters, thermostats, home security panels, and power/gas/water metering where the integrated LCD driver and 12-bit ADC are mission-critical. The wide 2.0V-5.5V VDD range also suits industrial sensor transmitters and IoT edge nodes. When designing with this MCU, allocate I/O pins carefully because the 80-pin TQFP is the largest variant in the PIC18F8493 family and shares pinout with the PIC18F8490 for design reuse. Place a 100 nF decoupling capacitor as close as possible to each VDD/AVDD pin pair and ensure the MCLR pin is properly pulled up to avoid spurious resets. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing engineering decision support across procurement and design-in workflows.

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PIC18F84J11-I/PT

PIC18F84J11-I/PT - 8-Bit 40MHz 16KB Flash MCU | Microchip

The Microchip Technology PIC18F84J11-I/PT is an 8-bit PIC18J-series microcontroller providing 10 MIPS performance at 3V with an integrated 8 MHz internal oscillator and reduced sleep current versus the previous PIC18F87J10 family. The device integrates 16 KB (8K x 16) of Flash program memory, 70 I/O pins, and a 12-bit A/D converter, all housed in an 80-pin TQFP package measuring 12 x 12 mm with 1 mm height. It operates from a 2.0V to 3.6V supply with a maximum clock speed of 40 MHz. A microcontroller (MCU) is a single-chip computer containing a CPU core, program and data memory, peripherals, and I/O. The PIC18 family uses an enhanced Harvard RISC architecture with separate program and data buses and a 16-bit instruction word optimized for C-compiled code. Within Microchip's hierarchy it sits above PIC16 and below PIC32, targeting cost-sensitive embedded applications where 8-bit deterministic behavior and low sleep current are decisive. Microcontrollers in this class are the control heart of products ranging from consumer appliances to industrial sensor nodes. Key features include 70 digital I/O pins, an internal 8 MHz RC oscillator, nanoWatt technology power management modes, multiple communication peripherals (UART, SPI, I2C), and a 12-bit A/D converter with up to 15 channels. The PIC18J family supports self-programmability of Flash, allowing field firmware updates via the application code. Enhanced PWM, capture/compare and a 16-bit timer block support motor and power-conversion control loops. The PIC18J architecture uses a two-stage pipeline with a wide 16-bit instruction path and dedicated hardware multiply, yielding 10 MIPS at 40 MHz core. The internal voltage regulator supports full-speed operation across 2.0V to 3.6V without external level shifters, and nanoWatt sleep modes drop quiescent current into the microamp range, suiting battery-powered designs that spend most of their life in standby. Typical applications include data loggers, industrial controllers, sensor interfaces, white goods / consumer appliances, and battery-powered instruments. The 70 I/O pins make it well-suited for large user-interface panels or systems that must drive several character LCDs, keypads and relays from a single chip. The part is adapted to cost-sensitive applications such as data loggers, controllers, sensors and consumer goods. When designing with this device, plan current budget carefully: 70 mA through 80 pins with 10 mA sink/source per pin can easily exceed the 200 mA package limit. Use the internal 8 MHz oscillator for low-EMI designs, and reserve the PLL only when 10 MIPS CPU throughput is mandatory. JTAG/ICSP programming requires dedicated RB6/RB7 pin sharing - keep these free for in-circuit programming in production. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC18F84J11T-I/PT

PIC18F84J11T-I/PT - 16KB Flash 8-Bit MCU 80-TQFP | Microchip

The Microchip Technology PIC18F84J11T-I/PT is a high-performance 8-bit PIC microcontroller from the PIC18 J-series family, delivering 10 MIPS throughput at 40 MHz core clock and integrating 16 KB (8K x 16) of Flash program memory with 1 KB of RAM in an 80-pin TQFP (12x12 mm) surface-mount package. The suffix 'T' designates Tape-and-Reel packaging for high-volume assembly lines, while 'I' indicates the industrial -40 °C to +85 °C operating temperature range required for factory-floor and outdoor embedded designs. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, on-chip Flash for program storage, RAM for runtime data, and a rich set of peripherals including timers, ADC, communication ports, and I/O. Within the broader taxonomy, the PIC18F84J11 belongs to the PIC18 family -> 8-bit PIC microcontrollers -> Microcontrollers (MCUs) -> Microcontrollers & Microprocessors -> Embedded Computing -> Semiconductors. The J-series variant targets cost-sensitive applications such as data loggers, control panels, and consumer devices by integrating an 8 MHz internal oscillator and offering lower sleep current than earlier 18F87J10 devices. Key features include 16 KB self-programmable Flash, 1 KB SRAM, 70 user I/O pins, an internal 8 MHz oscillator, an enhanced 10-bit ADC, multiple USART, SPI, and I²C peripherals, and the nanoWatt XLP (eXtreme Low Power) technology platform that enables battery-friendly sleep modes. The wide 2.5 V to 3.3 V core supply (with 5 V tolerant I/O on selected pins per datasheet) and 70 I/O make this device ideal for parallel-display, multi-key matrix, and segmented-LED or LCD human-machine-interface (HMI) front panels. Architecturally, the PIC18F84J11 uses a 16-bit modified Harvard RISC instruction set with an 8-bit data path, single-cycle instruction execution, and a hardware multiplier. Two 8-bit timer/counters, three 16-bit timer/counters, two capture/compare/PWM modules, an enhanced USART supporting LIN, and a 10-bit A/D converter with up to 12 input channels (device-dependent) deliver the signal-conditioning and control density required for sensor fusion and motor control. The integrated CTMU (Charge Time Measurement Unit) supports capacitive touch and precise time measurement. Typical applications include industrial data loggers, USB-to-UART bridges (with external transceiver), battery-powered sensor hubs, HMI/keypad controllers, white-goods appliance controllers, and embedded control for consumer electronics. The device is also commonly used in motor-control reference designs and lighting-control boards. Designers should plan for adequate decoupling (100 nF + 10 µF) near each VDD/AVDD pin and route the 80-TQFP land pattern carefully on a 4-layer PCB to maintain signal integrity on parallel ports. When migrating from the legacy PIC18F87J10 family, note that the 'J' core differs slightly in peripheral mapping and requires recompilation under MPLAB X IDE with the latest XC8 compiler toolchain. This page synthesizes distributor pricing, drop-in PIC18 family alternatives, and practical design notes that go beyond what the manufacturer datasheet alone provides.

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PIC18F84J11T-I/PT - 16KB Flash 8-Bit MCU 80-TQFP | Microchip