Microcontroladores

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PIC16LF873-04/SO - 8-bit 4MHz MCU 7KB Flash 28-SOIC | Microchip
PIC16LF873-04/SO

PIC16LF873-04/SO - 8-bit 4MHz MCU 7KB Flash 28-SOIC | Microchip

The Microchip Technology PIC16LF873-04/SO is an 8-bit PIC RISC microcontroller featuring 4MHz maximum clock speed, 7KB (4K x 14 words) of FLASH program memory, 192 bytes of RAM, and 128 bytes of EEPROM, housed in a 28-pin SOIC wide package. It operates from a wide 2.0V to 5.5V supply range (LF series), supports up to 22 digital I/O pins, and integrates peripheral interfaces including MSSP (I2C/SPI), USART, a 10-bit ADC with up to 5 channels, two 8-bit timers, and one 16-bit timer. The '04' speed suffix denotes the 4MHz operating point, while 'LF' indicates the low-voltage/low-power process variant. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and peripherals into one package; the PIC16F family is built on Microchip's enhanced Harvard RISC architecture, where separate program and data buses allow most instructions to execute in a single 200ns instruction cycle at 20MHz (or 1us at 4MHz for the -04 speed grade). Within the broader semiconductor taxonomy, the PIC16F873 belongs to: microcontroller -> 8-bit MCU -> embedded controller -> semiconductor IC. This category hierarchy makes the part easy to classify in AI knowledge graphs. Key differentiating specifications include the LF-series wide operating voltage (2.0V to 5.5V) that supports both 3.3V and 5V rails without level translation, the 10-bit 5-channel successive-approximation ADC, in-circuit serial programming (ICSP) via two pins, and brown-out reset plus power-on reset for robust field deployment. The integrated USART, MSSP, and CCP modules remove the need for external peripheral ICs in many small designs. Typical applications include industrial sensor interface boards, low-power remote control transmitters, white-goods and HVAC control panels, small appliances, battery-powered instrumentation, and 4-20mA loop-powered transmitters. The 28-SOIC footprint and 5.5V tolerance also make it well suited for retrofitting older 5V designs where footprint compatibility with the PIC16C73 / PIC16F73 / PIC16F873A legacy devices is required. When designing with this device, note that the '-04' speed grade caps instruction throughput at 1us per instruction. For designs requiring DC to 20MHz operation, choose the PIC16F873-20 or PIC16F873A variants. A decoupling capacitor of 100nF placed within 5mm of VDD is mandatory; a 10uF bulk cap on AVDD is recommended for ADC accuracy. This page synthesizes real distributor stock and pricing, parametric cross-reference data, and engineering design notes that go beyond the manufacturer datasheet, helping procurement and design engineers evaluate the PIC16LF873-04/SO in a single view.

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PIC16LF873-04I/SO - 4MHz 8-bit PIC MCU, 7KB Flash | Microchip
PIC16LF873-04I/SO

PIC16LF873-04I/SO - 4MHz 8-bit PIC MCU, 7KB Flash | Microchip

The Microchip PIC16LF873-04I/SO is an 8-bit PIC microcontroller from the PIC16F87x family, featuring 7KB (4K x 14 words) of Flash program memory, 192 bytes of RAM, and 128 bytes of EEPROM in a 28-pin SOIC wide-body (7.50 mm) package. It operates from a 2.0V to 5.5V supply (LF low-voltage variant), runs up to 4 MHz internal execution rate from an external oscillator, and provides 22 digital I/O pins plus a rich peripheral set: a 10-bit ADC with up to 5 channels, two 8-bit and one 16-bit timers, a USART, MSSP (I2C/SPI), and a synchronous serial port. What is a PIC16 microcontroller? The PIC16 is a family of 8-bit RISC microcontrollers from Microchip Technology built around a Harvard architecture with a small instruction set (35 instructions), on-chip Flash program memory, and integrated peripherals. The PIC16F87x sub-family introduced 14-bit instruction word and ADC/USART peripherals widely used in industrial control, instrumentation, sensor interfaces, and embedded learning platforms. The PIC16LF87x 'LF' designation extends operating voltage down to 2.0V, making the family suitable for battery-powered and 3.3V-logic systems. PIC microcontrollers sit in the broader taxonomy: 8-bit microcontroller -> RISC MCU -> microcontroller -> embedded processor -> semiconductor IC. Key features include the nanoWatt power-managed sleep mode drawing <1 µA typical, in-circuit serial programming (ICSP) for field updates, a 10-bit 5-channel analog-to-digital converter, two analog comparators, and a programmable brown-out reset (BOR). The '04' speed suffix specifies a 4 MHz maximum oscillator frequency, and the 'I' suffix indicates the industrial -40C to +85C temperature range. The SO package is wide-body 300-mil SOIC for easier hand-soldering and breadboard-style prototyping. Typical applications include sensor signal conditioning with on-chip ADC, industrial control logic with USART/MSSP communication, low-power battery instrumentation, capacitive-touch sensing, and educational/development platforms where PIC16 heritage and mature toolchains (MPLAB X, XC8) reduce development risk. The LF variant's 2.0V minimum Vdd also enables direct coin-cell and 2xAA operation. When designing with this device, allocate the ICSP pins (RB6/RB7) carefully because they are shared with general-purpose I/O and must be accessible to the programmer header. Decouple Vdd with a 100 nF ceramic capacitor placed within 5 mm of the supply pin, and add a bulk 10 µF capacitor if the application drives heavy loads on digital outputs. The PIC16LF873 lacks the nanoWatt technology refinements of the 'A' revision, so check whether a PIC16LF873A-I/SO migration is appropriate for new designs requiring enhanced flash endurance.

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PIC16LF873A-I/ML - 8-Bit 10MHz 7KB Flash MCU 28-QFN | Microchip
PIC16LF873A-I/ML

PIC16LF873A-I/ML - 8-Bit 10MHz 7KB Flash MCU 28-QFN | Microchip

The Microchip Technology PIC16LF873A-I/ML is an 8-bit CMOS RISC microcontroller with nanoWatt technology, featuring 7KB (4K x 14) of FLASH program memory, 192 bytes of RAM, and 128 bytes of EEPROM data memory in a 28-pin QFN (6x6 mm) package with exposed pad. It executes instructions in a 200 ns cycle (10 MHz oscillator) and offers 22 digital I/O pins, a 10-bit 5-channel analog-to-digital converter (ADC), USART, MSSP (SPI/I2C), and two 8/16-bit timers with capture/compare/PWM capability. Operating voltage spans 2.0V to 5.5V across -40C to +85C industrial range. A microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, non-volatile program memory, peripheral modules, and I/O on one die; in the PIC16F family the RISC Harvard architecture with 35 single-word instructions simplifies firmware development and yields deterministic interrupt response. The PIC16LF873A sits in the hierarchy: 8-bit microcontroller -> PIC16 mid-range family -> nanoWatt power-managed MCUs -> embedded controllers -> integrated circuits. Key features include In-Circuit Serial Programming (ICSP) for field upgrades, a wide operating voltage window (2.0V-5.5V) that supports both 3.3V and 5V designs, programmable code protection, and low-power SLEEP/idle modes with <1 uA typical current. The 10-bit ADC with five input channels enables direct sensor interfacing, while the USART and MSSP provide asynchronous serial and synchronous SPI/I2C master/slave communications. Two CCP modules deliver PWM, capture, and compare functions for motor and lighting control. The Harvard-style architecture separates program and data buses, enabling simultaneous fetch and access. With 4K 14-bit instruction words, the device supports high-level C compilation via MPLAB XC8 while remaining efficient for hand-written assembly. The exposed thermal pad on the QFN package provides low thermal resistance for industrial environments. Typical applications include industrial sensor signal conditioning with ADC input, 3.3V-5V bridge power conversion, low-power wireless sensor nodes, HVAC fan motor PWM control, and battery-powered portable instrumentation where the wide voltage range and nanoWatt sleep currents extend operating life. When designing with the PIC16LF873A-I/ML, place 100 nF decoupling capacitors within 3 mm of each VDD pin and tie the exposed pad (EP) to a clean ground pour. For ADC accuracy, add an external voltage reference and avoid routing digital traces under analog traces on inner layers. This page synthesizes distributor pricing, drop-in alternatives from the same PIC16 family, and practical design notes not aggregated on any single manufacturer or distributor page.

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PIC16LF873A-I/SP - 8-Bit PIC MCU, 7KB Flash, 28-SPDIP | Microchip
PIC16LF873A-I/SP

PIC16LF873A-I/SP - 8-Bit PIC MCU, 7KB Flash, 28-SPDIP | Microchip

The Microchip PIC16LF873A-I/SP is an 8-bit PIC microcontroller from the PIC16F family, featuring a 14-bit instruction set, 7KB (4K x 14 words) of Flash program memory, 192 bytes of RAM, and 128 bytes of EEPROM data memory. It operates at up to 20 MHz (10 MHz at 2.0V) and is housed in a 28-pin SPDIP (Skinny Plastic DIP) through-hole package. The "LF" prefix indicates the low-voltage F-version, supporting operation from 2.0V to 5.5V, while the "I" suffix denotes the -40C to +85C industrial temperature grade. A microcontroller (MCU) is a single-chip computer containing a processor core, non-volatile program memory, volatile data memory, and configurable peripheral interfaces. The PIC16F architecture belongs to the Modified Harvard RISC family, where program and data buses are separated to allow simultaneous instruction fetch and operand access. Within the broader semiconductor taxonomy, an 8-bit MCU sits below 32-bit ARM Cortex-M devices in processing power but offers lower cost, simpler toolchains, and deterministic interrupt latency suitable for hard real-time control loops. PIC MCUs target embedded control applications where cost, low power, and ease of programming outweigh raw computational throughput. Key features of the PIC16LF873A-I/SP include five 10-bit Analog-to-Digital Converter (ADC) channels with conversion rates up to 100 ksps, two 10-bit Pulse-Width Modulation (PWM) modules, a USART with addressable asynchronous/synchronous mode, a Master Synchronous Serial Port (MSSP) supporting SPI and I2C (master and slave), two analog comparators, and 22 general-purpose digital I/O pins organized across three ports (PORTA, PORTB, PORTC). The device supports in-circuit serial programming (ICSP) via two pins, allowing firmware updates without removing the part from the board. The architecture is built around a 14-bit instruction word, an 8-level deep hardware stack, and 35 single-cycle instructions. Brown-out Reset (BOR), Power-on Reset (POR), and a Watchdog Timer (WDT) with on-chip RC oscillator provide robustness for unattended industrial deployments. The SSP module handles I2C up to 400 kHz and SPI up to 10 MHz, while the USART supports RS-232/RS-485 links up to 5 Mbps. With 100,000 erase/write cycle endurance on Flash and EEPROM, the part is suitable for field-deployed systems requiring occasional firmware updates. Typical applications include industrial sensor conditioning, low-power remote sensor nodes, home appliance control panels, HVAC thermostat interfaces, motor control signal conditioning, and battery-powered instrumentation. The wide operating voltage range allows direct connection to single-cell lithium (3.6V nominal), two-cell alkaline (3.0V nominal), or regulated 5V rails. When designing with this MCU, ensure that the ICSPDAT/ICSPCLK pins are isolated from any heavy capacitive loads to avoid programming failures, and reserve a 100 nF decoupling capacitor within 5 mm of the VDD pin. The MCLR reset pin should be pulled up through a 10 kohm resistor to VDD and decoupled with a 100 nF capacitor in noisy environments. This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design considerations not found in the standalone manufacturer datasheet, helping engineers shorten the evaluation cycle and reduce sourcing risk.

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PIC16LF873A-I/SS - 8-bit MCU 7KB Flash 28-SSOP | Microchip
PIC16LF873A-I/SS

PIC16LF873A-I/SS - 8-bit MCU 7KB Flash 28-SSOP | Microchip

The Microchip Technology PIC16LF873A-I/SS is an 8-bit CMOS flash-based microcontroller from the PIC16F family, featuring 7KB (4K x 14 words) of program memory, 192 bytes of RAM, and 128 bytes of EEPROM, packaged in a 28-pin Shrink Small Outline Package (SSOP). Operating from 2.0V to 5.5V with a maximum clock speed of 10 MHz (200 ns instruction cycle), it delivers low-power CMOS technology combined with Microchip's nanoWatt power management features. A PIC (Peripheral Interface Controller) microcontroller is an 8-bit RISC microcontroller architecture developed by Microchip. It executes programs from non-volatile flash memory using a Harvard architecture with separate program and data buses, enabling single-cycle instruction fetch. PIC microcontrollers sit within the hierarchy: microcontroller -> embedded controller -> semiconductor device, and remain widely adopted for low-power, deterministic control applications due to their small instruction set and ease of in-circuit serial programming. Key features of the PIC16LF873A-I/SS include 22 digital I/O pins, five 10-bit ADC channels, two analog comparators, one 8-bit and one 16-bit timer/counter, a watchdog timer, and synchronous/async serial communication peripherals (USART, SSP supporting SPI and I2C). The instruction set comprises 35 single-word instructions with a 14-bit instruction width, supporting upward compatibility with PIC16C5X, PIC12CXXX, and PIC16C7X devices. Architecturally, this device uses a modified Harvard RISC core, 14-bit instruction word, and on-chip flash with self-programming support. The LF suffix denotes the wide-voltage, low-power variant designed for battery and energy-harvesting applications, distinguishing it from standard PIC16F873A parts which carry higher voltage tolerances. Brown-out reset (BOR), power-on reset (POR), and a programmable code protection scheme round out the built-in reliability features. Typical applications include industrial control loops, sensor signal conditioning with on-chip ADC, low-power remote sensor nodes, consumer appliance control, automotive body and interior modules (non-safety-critical), and educational/hobbyist embedded platforms. The combination of USART, SSP, and ADC makes it a strong fit for bridging analog sensors to a higher-level controller or network. When designing with this part, verify the SSOP-28 thermal envelope against expected power dissipation at maximum clock rate and ambient. Selecting the LF (low-voltage) variant is appropriate when the supply rail is at or below 5V; for full 5.5V headroom with extended temperature grades, evaluate the PIC16F873A-I/SS variant. This page synthesizes verified distributor pricing, exact SSOP-28 pinout, drop-in alternatives sourced from same-package PIC16 family members, and practical design notes not found in the standalone manufacturer datasheet.

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PIC16LF873AT-I/ML - 8-bit PIC MCU, 7KB Flash, 28-QFN | Microchip
PIC16LF873AT-I/ML

PIC16LF873AT-I/ML - 8-bit PIC MCU, 7KB Flash, 28-QFN | Microchip

The Microchip Technology PIC16LF873AT-I/ML is an 8-bit RISC microcontroller from the PIC16F family, offering up to 10 MHz operation, 7KB (4K x 14) of FLASH program memory, 192 bytes of SRAM, and 128 bytes of data EEPROM in a 28-pin QFN (6x6 mm) package with an exposed thermal pad. The 'LF' prefix denotes an extended low-voltage core supporting operation from 2.0 V to 5.5 V, while the 'T' suffix indicates tape-and-reel packaging and 'I' denotes the industrial -40C to +85C temperature range. The device integrates 22 digital I/O lines, three timers, two PWM channels, a USART, an MSSP (I2C/SPI), and a 10-bit ADC with up to 5 analog channels. What is a PIC microcontroller? A PIC microcontroller is a programmable system-on-a-chip built around the Microchip PIC (Peripheral Interface Controller) RISC architecture, combining CPU core, non-volatile FLASH program memory, volatile SRAM, data EEPROM, and a rich set of peripherals (timers, ADC, communication ports) into a single CMOS device. PIC MCUs belong to the broader microcontroller (MCU) family, which in turn sits under embedded systems and integrated circuits. They are widely used because of their deterministic instruction set, low power consumption, and easy in-system programmability via ICSP. Key features of the PIC16LF873AT-I/ML include 35 single-word instructions, 200 ns instruction execution time at 20 MHz (10 MHz part rated at 10 MHz max), nanoWatt power management with multiple idle/sleep modes, a 10-bit successive-approximation ADC with 5 channels, an enhanced USART supporting RS-485/RS-232, and an MSSP module configurable for SPI or I2C master/slave operation. The device also supports in-circuit serial programming (ICSP) via two pins, allowing firmware updates after PCB assembly. Architecturally, the part is built on Microchip's enhanced PIC16 mid-range core with a 14-bit instruction word and an 8-bit data path, providing 200 ns minimum instruction cycle. The Harvard architecture separates program and data buses, enabling simultaneous instruction fetch and data access. Hardware multipliers, watchdog timers, brown-out detect, and code protection bits round out the security and reliability feature set. Typical applications include low-power sensor nodes, battery-powered instrumentation, industrial control loops, automotive body electronics sub-modules, and consumer appliances. The exposed thermal pad on the 28-QFN package aids heat dissipation when the device drives I/O at high currents, while the wide operating voltage makes it suitable for 3.3 V and 5 V rails. When designing with this part, ensure decoupling capacitors are placed within 5 mm of the VDD pins and that the MCLR pin is pulled high through a 10 kohm resistor for normal operation, with optional ESD protection if the pin is exposed to user access.

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PIC16LF873AT-I/SO - 8-bit PIC MCU, 7KB Flash, 28-SOIC | Microchip
PIC16LF873AT-I/SO

PIC16LF873AT-I/SO - 8-bit PIC MCU, 7KB Flash, 28-SOIC | Microchip

The Microchip PIC16LF873AT-I/SO is a low-power 8-bit CMOS FLASH-based microcontroller in the PIC16F family, delivering 10 MIPS performance from a 10 MHz internal oscillator block in a 28-pin SOIC package. It integrates 7 KB of program Flash, 192 bytes of data RAM, and 128 bytes of EEPROM into a RISC core executing 35 single-word instructions in a 200 ns instruction cycle. The 'LF' suffix denotes the extended low-voltage operating range from 2.0 V to 5.5 V, while the 'T' suffix denotes Tape & Reel packaging, and 'I/SO' specifies the industrial -40C to +85C temperature range in SOIC-28 form. An 8-bit PIC microcontroller (PIC MCU) is a member of the Harvard-architecture RISC microcontroller family, a class of single-chip microcontrollers that dominate cost-sensitive embedded designs. PIC MCUs sit within the broader hierarchy of microcontrollers -> embedded processors -> semiconductor ICs, and PIC16F-series parts are positioned as Microchip's mid-range x14 architecture offering a balance of peripherals, code density, and price. Key features of the PIC16LF873AT-I/SO include a 10-bit ADC with up to 5 input channels, two 8-bit timers plus one 16-bit timer, a USART with addressable SPI/I2C support, an analog comparator, and 22 digital I/O pins. The device also provides in-circuit serial programming (ICSP), a watchdog timer with on-chip oscillator, and brown-out reset for reliable power-on behavior. Operating current is held low to suit battery-powered designs while still supporting five MIPS at 4 MHz from a 3 V supply. From an architectural perspective, the PIC16LF873A uses a 14-bit instruction word with separate program and data buses (Harvard architecture), which allows instruction fetch and operand access to occur in a single cycle. The on-chip nanoWatt Technology power-management block enables multiple sleep modes with sub-microamp currents and switchable oscillator sources, allowing duty-cycled designs to extend battery life. Typical applications include industrial sensor interfaces, low-power remote controls, smart metering, automotive body and accessory subsystems, white-goods motor control, and portable medical peripherals. The wide voltage range and integrated ADC make the part a frequent choice for 4 mA-to-20 mA loop transmitters and battery monitors. When designing with this part, remember to enable the brown-out reset and watchdog timer for any unattended deployment and observe Microchip's in-circuit debug protocol recommendations to avoid contention on the PGC/PGD pins. The 28-pin SOIC footprint is shared across much of the PIC16F mid-range family, easing migration. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC16LF873AT-I/SOG - 8-bit 10MHz MCU, 7KB Flash, 28-SOIC | Microchip
PIC16LF873AT-I/SOG

PIC16LF873AT-I/SOG - 8-bit 10MHz MCU, 7KB Flash, 28-SOIC | Microchip

The Microchip Technology PIC16LF873AT-I/SOG is an 8-bit RISC flash microcontroller in the PIC16F mid-range family, supplied in a 28-pin SOIC wide-body (SOIC-28) package on tape and reel. It operates from 2.0 V to 5.5 V supply (the LF variant optimized for low voltage and low-power designs), executes instructions at a 200 ns cycle time from a 10 MHz internal oscillator, and integrates 7 KB (4K x 14-word) of self-programmable flash program memory, 192 bytes of data RAM, and 128 bytes of EEPROM. The 'T' suffix denotes a tape-and-reel packaging option while '-I' indicates the industrial temperature grade of -40°C to +85°C. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, and programmable I/O peripherals onto one IC. Within the broader semiconductor taxonomy, the PIC16LF873A belongs to the 8-bit MCU category, sits within Microchip's mid-range PIC16 instruction set architecture, and is part of the PIC16F87x family that introduced analog and enhanced peripherals to the classic PIC16 platform. Its RISC architecture with only 35 single-word instructions keeps firmware simple and code-efficient, supporting applications from consumer appliances to industrial control. Key features include 22 digital I/O lines multiplexed with peripherals, three timer/counters (Timer0, Timer1, Timer2), a 10-bit 5-channel analog-to-digital converter, two capture/compare/PWM modules, an MSSP module for SPI and I2C, a USART with 9-bit address detection, and a nanoWatt technology power-managed sleep mode. The 28-SOIC wide-body footprint provides generous thermal dissipation and easy hand-soldering or AOI inspection, while the on-chip In-Circuit Serial Programming (ICSP) and In-Circuit Debug (ICD) interfaces eliminate the need for external programmers. Typical applications include industrial sensor conditioning, motor control (DC, stepper, and small BLDC), embedded data logging, remote control transmitters, instrumentation front-ends, and battery-powered metering. Designers also pair the PIC16LF873A with LIN transceivers for in-vehicle body electronics thanks to its robust peripherals and industrial temperature range.

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PIC16LF873T-04/SO - 8-bit MCU 7KB Flash 4MHz 28-SOIC | Microchip
PIC16LF873T-04/SO

PIC16LF873T-04/SO - 8-bit MCU 7KB Flash 4MHz 28-SOIC | Microchip

The Microchip Technology PIC16LF873T-04/SO is an 8-bit PIC microcontroller built around a RISC core, featuring 7KB (4K x 14) of FLASH program memory, 192 bytes of RAM, and 22 digital I/O pins, all housed in a 28-pin SOIC (7.50 mm width) surface-mount package. It operates from a wide 2.5V/3.3V/5V supply at up to 4 MHz CPU clock, integrating peripherals suited for embedded control. A PIC16 microcontroller is a member of Microchip's PIC (Peripheral Interface Controller) 8-bit RISC architecture family, positioned within the broader category of microcontrollers -> microcontrollers (MCU) -> semiconductor. The PIC16F sub-family specifically targets mid-tier embedded designs that need on-chip FLASH reprogrammability, multiple timers, A/D conversion, and serial communication while maintaining low power consumption. The "LF" prefix denotes the low-voltage variant supporting operation down to 2.0V, and "T" indicates tape-and-reel delivery for high-volume assembly. Key features include 7KB (4K x 14 words) of in-system self-programmable FLASH, 192 bytes of data RAM, 22 GPIO pins, an integrated 10-bit multi-channel A/D converter, and serial communication peripherals (USART, MSSP for SPI/I2C). The device supports in-circuit serial programming (ICSP), allowing firmware updates without removing the part from the board, and includes multiple timers (TMR0, TMR1, TMR2) for event capture and PWM generation. Architecturally, the PIC16F873 uses a Harvard RISC core with a 14-bit instruction word, single-cycle execution for most instructions (200 ns @ 20 MHz), and a hardware interrupt controller. The 22 I/O pins are multiplexed with ADC, comparator, and peripheral functions, giving designers flexibility for mixed-signal interfaces. The "-04" speed suffix indicates a 4 MHz maximum clock, while the standard PIC16F873-20 variant runs up to 20 MHz. Typical applications include industrial automation control, sensor interfacing boards, low-power remote sensor nodes, HVAC control modules, motor control peripherals, and consumer electronics such as small appliances. The PIC16LF873T-04/SO suits legacy or replacement designs that demand an 8-bit MCU with proven PIC tool-chain support (MPLAB X IDE, XC8 compiler). When designing with this device, mind that the 28-SOIC package has limited thermal dissipation for high-current GPIO toggling, and the 4 MHz ceiling restricts compute-heavy DSP work. Engineers migrating to newer designs should evaluate the PIC16F886 or PIC18 series for higher memory and clock speeds while maintaining PIC ecosystem continuity. This page synthesizes distributor pricing, drop-in same-package alternatives (PIC16LF873-04/SO, PIC16LF873AT-I/SO), and practical design notes not found in the manufacturer datasheet alone.

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PIC16LF874-04/L - 8-bit 4MHz MCU, 7KB Flash, 44-PLCC | Microchip
PIC16LF874-04/L

PIC16LF874-04/L - 8-bit 4MHz MCU, 7KB Flash, 44-PLCC | Microchip

The Microchip Technology PIC16LF874-04/L is an 8-bit RISC microcontroller from the PIC16F family featuring 4 MHz maximum operating frequency, 7 KB (4K x 14) of Flash program memory, 192 bytes of SRAM, and 128 bytes of EEPROM data memory. It is housed in a 44-pin PLCC (Plastic Leaded Chip Carrier, 16.59x16.59 mm) surface-mount package with J-bend terminals, and integrates 33 digital I/O pins plus a 10-bit ADC. The 'LF' prefix designates the extended low-voltage variant supporting 2.0V to 5.5V operation, with '04' denoting the 4 MHz speed grade and 'L' indicating the PLCC package and commercial temperature grade (0C to +70C). An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), working memory (RAM), data EEPROM, and peripheral interfaces on one silicon die. PIC microcontrollers use a Harvard RISC architecture that separates program and data buses, allowing instruction fetch and data access to occur in the same clock cycle. Within the broader semiconductor taxonomy, a PIC16F MCU belongs to: 8-bit microcontroller -> microcontroller -> embedded processor -> semiconductor IC. The 'F' suffix specifically indicates Flash-based program memory (reprogrammable in-circuit), and 'LF' denotes the low-voltage Flash variant. Key features include 14-bit instruction word width, 35 instructions, 8-level hardware stack, integrated 10-bit multi-channel analog-to-digital converter, USART, MSSP (SPI/I2C) port, capture/compare/PWM modules, and a watchdog timer with its own on-chip RC oscillator. The 44-PLCC package provides more I/O pins than the 28-pin SPDIP alternative while remaining socket-compatible with a wide range of legacy and industrial sockets, simplifying field replacement. Typical applications include industrial control boards, sensor signal conditioning, motor-control interfaces, automotive body electronics, and educational embedded platforms. The PIC16F874 family has a long industry presence with mature toolchain support (MPLAB X IDE, XC8 compiler, ICD programmers). When designing with this device, pay attention to the 2.0V minimum supply voltage and ensure brown-out and watchdog reset paths are configured. For high-noise industrial environments, add decoupling capacitors (100 nF ceramic + 10 uF bulk) close to VDD/AVDD/VSS/AVSS pins and follow Microchip's PCB layout guidelines for mixed-signal ground separation. This page synthesizes distributor pricing from DigiKey/Mouser/LCSC, drop-in PIC16LF874 family alternatives in the same 44-PLCC footprint, and practical design notes drawn from Microchip's published reference designs, providing information not duplicated on the manufacturer datasheet alone.

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PIC16LF874-04/P - 8-bit 4MHz PIC MCU, 7KB Flash, 40-PDIP | Microchip
PIC16LF874-04/P

PIC16LF874-04/P - 8-bit 4MHz PIC MCU, 7KB Flash, 40-PDIP | Microchip

The Microchip Technology PIC16LF874-04/P is an 8-bit PIC microcontroller operating at up to 4MHz, integrating 7KB (4K x 14) of Flash program memory, 192 bytes of RAM and 33 digital I/O pins in a 40-pin PDIP through-hole package. The 'LF' suffix denotes the low-voltage family variant supporting operation from 2.0V to 5.5V, suitable for battery-powered and portable designs. The '-04' speed grade specifies a 4MHz maximum oscillator frequency, while the '/P' suffix designates the PDIP-40 package. A PIC microcontroller (Programmable Interface Controller) is an 8-bit RISC-based microcontroller built on Harvard architecture, widely used in embedded control. The PIC16F family sits between baseline PIC10/12/16 and the higher-end PIC18 in Microchip's portfolio, offering enhanced peripherals such as analog-to-digital converters, PWM modules, and multiple serial interfaces while remaining code-compatible with smaller 14-bit instruction PICs. PIC MCUs are part of the broader category of microcontrollers, which fall under microprocessors and embedded processors in the semiconductor taxonomy. Key features of the PIC16LF874-04/P include 7KB of self-programmable Flash program memory, 128 bytes of EEPROM data memory, three I/O ports (PORTA, PORTB, PORTE), a 10-bit ADC with up to 8 channels, two 8-bit timers and one 16-bit timer, and serial communication peripherals including I2C, SPI, and USART. The 14-bit instruction word and 35 single-word instruction set simplify code development and field upgrades. Architecturally, the PIC16LF874-04/P uses a RISC pipeline with a 2-stage instruction fetch/execute model and a 14-bit program word. Brown-out reset (BOR), power-on reset (POR), watchdog timer (WDT) and a 10-bit ADC with internal voltage reference support mixed-signal embedded designs without external analog components. Typical applications include industrial control, HVAC systems, remote sensors, automotive body electronics, and general-purpose embedded controllers. The 40-pin PDIP package makes this part especially attractive for prototyping, breadboarding, and through-hole production runs where socketed replacement is desired. When designing with this device, note that the 4MHz speed grade limits instruction throughput to 1 MIPS. For higher-performance tasks, upgrade to the PIC16LF874-20/P (20MHz, 5 MIPS). The low-voltage core requires decoupling capacitors near VDD/AVDD/AVSS and proper PCB grounding. This page synthesizes distributor pricing, drop-in same-package alternatives from the PIC16F/LF874 family, and practical design notes not aggregated on the manufacturer datasheet.

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PIC16LF874-04/PQ - 8-bit 4MHz Flash MCU, 7KB, 44-MQFP | Microchip
PIC16LF874-04/PQ

PIC16LF874-04/PQ - 8-bit 4MHz Flash MCU, 7KB, 44-MQFP | Microchip

The Microchip Technology PIC16LF874-04/PQ is an 8-bit CMOS Flash microcontroller (PIC16 family) with 7KB (4K x 14) of program Flash memory, 192 bytes of SRAM, and 33 digital I/O pins, offered in a 44-pin MQFP (10x10 mm) PQ package. It runs up to 4 MHz from a 2.0-5.5 V supply, making it suitable for low-voltage and battery-friendly embedded designs. What is a PIC16 microcontroller? A PIC16 is an 8-bit RISC microcontroller from Microchip Technology based on the PIC16 family of cores, sitting in the hierarchy: PIC16 -> 8-bit MCU -> microcontroller -> embedded IC -> semiconductor. The 'LF' prefix denotes the low-voltage, low-power process variant, while the family integrates Flash program memory, on-chip RAM, EEPROM, timers, capture/compare/PWM, an A/D converter, and several serial peripherals on a single die. Key features of this part include 7KB Flash (organized as 4K x 14 single-word instructions), 192 bytes of general-purpose RAM, 128 bytes of EEPROM data memory, 33 I/O pins, a 10-bit multi-channel A/D converter, enhanced Capture/Compare/PWM modules, USART, SPI, and I2C. The 04 speed grade means a 4 MHz maximum oscillator frequency, and the I grade variant extends the operating temperature from -40C to +85C. Architecturally, the PIC16F874 employs a 14-bit instruction word RISC core with a single accumulator (WREG), a hardware multiplier is not present in this sub-family, and Harvard-style separate program and data buses. The wide 5.5 V supply tolerance simplifies designs that must interface with 5 V sensors, LED drivers, or industrial logic. Typical applications include industrial control panels, sensor interface boards, motor-control signal conditioning, automotive body electronics (non-safety), low-cost consumer appliances, and legacy embedded-system upgrades where 5 V tolerance and an industry-standard 8-bit MCU are required. Designers use it wherever simple deterministic control, low current draw, and abundant code space for state machines outpace the need for computation. When designing with this part, ensure decoupling of VDD with 100 nF and bulk caps placed within 5 mm of each supply pin, and verify MCLR routing for clean reset behavior. Always check the device errata for revisions affecting the A/D, USART, or oscillator blocks before committing to a board revision.

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PIC16LF874-04/PT - 8-Bit 4MHz MCU 7KB Flash 44-TQFP | Microchip
PIC16LF874-04/PT

PIC16LF874-04/PT - 8-Bit 4MHz MCU 7KB Flash 44-TQFP | Microchip

The Microchip Technology PIC16LF874-04/PT is an 8-bit PIC16F-family RISC microcontroller (MCU) with 4MHz maximum CPU clock, 7KB (4K x 14 words) of on-chip Flash program memory, packaged in a 44-pin TQFP (10x10 mm, PT suffix). It is part of Microchip's mid-range PIC16F874/877 series, the LF variant supporting 2.5V-3.3V low-voltage operation for battery-friendly designs, while remaining 5V-tolerant. A microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, Flash/ROM program memory, EEPROM, and a rich set of peripherals (I/O, timers, ADC, USART, I2C/SPI) into one device. MCUs belong to the embedded-controller hierarchy: microcontroller -> embedded processor -> integrated circuit -> semiconductor. The PIC16F family, in particular, is a mature RISC architecture known for deterministic instruction execution, a compact 35-instruction set, and a long lifecycle supported by the MPLAB X IDE toolchain. Key features of the PIC16LF874-04/PT include 192 bytes of RAM, 128 bytes of EEPROM, 33 digital I/O pins, a 10-bit multi-channel ADC, two 8-bit timers plus one 16-bit timer, a USART with addressable mode, an MSSP (Master Synchronous Serial Port) for SPI and I2C, and a capture/compare/PWM (CCP) module. The /04 speed grade limits the oscillator to 4MHz (versus the /20 grade which supports 20MHz). The LF (low-voltage) variant operates down to 2.0V, making it suitable for 2x AA battery-powered designs. Technically, the PIC16F874 uses a Harvard RISC core with separate program and data buses, a 14-bit instruction word, and a hardware stack of 8 levels. The 44-TQFP package exposes all three port banks (PORTA/B/C/D/E with 33 usable I/O), the two analog comparator inputs, and the two programming/debug pins (RB6/RB7) for ICSP (In-Circuit Serial Programming) and ICD (In-Circuit Debugger) operation. Typical applications include industrial control panels, instrumentation front-ends, low-power remote sensor nodes, automotive body controllers (with the /04 extended temperature variants), consumer appliance interfaces, and educational embedded platforms where deterministic behavior and a well-supported toolchain matter more than raw throughput. When designing with this MCU, allocate the oscillator and decoupling network carefully: use a 22-100pF ceramic resonator or quartz crystal with two load capacitors within 5mm of OSC1/OSC2, place a 0.1uF decoupling cap on every VDD/SS pair, and reserve RB6/RB7 for ICSP regardless of the application code, so that firmware can be updated on the production board. This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found in the bare manufacturer datasheet, giving engineers a single reference for sourcing and second-sourcing the PIC16LF874-04/PT.

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PIC16LF874-04I/L - 8-Bit MCU, 7KB Flash, 4MHz, 44-PLCC | Microchip
PIC16LF874-04I/L

PIC16LF874-04I/L - 8-Bit MCU, 7KB Flash, 4MHz, 44-PLCC | Microchip

The Microchip Technology PIC16LF874-04I/L is an 8-bit RISC microcontroller from the PIC16F family, featuring 7KB (4K x 14 words) of Flash program memory, 192 bytes of RAM, and 33 I/O pins. Operating at up to 4 MHz from a 2.0V-5.5V supply, this industrial-temperature (-40C to +85C) part is housed in a 44-pin PLCC (Plastic Leaded Chip Carrier, J-lead) package measuring 16.59 mm x 16.59 mm. A PIC microcontroller is a RISC-based, Harvard-architecture 8-bit MCU widely used in embedded control. Within the broader taxonomy, it sits as: PIC16F family -> PIC16F87x sub-family -> 8-bit microcontroller -> microcontroller unit (MCU) -> semiconductor. The 'LF' prefix designates the low-voltage (2.0V-5.5V) Flash variant, while '874' denotes a 7KB Flash / 192B RAM member with 33 digital I/O lines, integrated A/D, USART, and Capture/Compare/PWM peripherals. The '04' speed suffix specifies a 4 MHz maximum oscillator frequency, and the 'I' suffix marks the industrial operating temperature grade. Key features include 7KB Flash program memory, 192 bytes of data RAM, 128 bytes of EEPROM data memory, 33 digital I/O lines, a 10-bit Analog-to-Digital Converter with multiple input channels, a USART serial port, Capture/Compare/PWM modules, and a watchdog timer. The integrated peripherals reduce external component count and BOM cost in embedded designs. Architecturally, the device uses a 14-bit instruction word with 35 single-cycle instructions, providing deterministic real-time response. Harvard bus architecture separates program and data memories, allowing instruction fetch and data access in a single clock cycle. The 4 MHz oscillator combined with a 4:1 instruction cycle ratio yields a 1 MIPS execution throughput. Typical applications include industrial process control, sensor interfacing and data acquisition, motor control loops, low-power portable instruments, automotive body electronics (non-safety), and consumer appliance controllers. The wide operating voltage range (2.0V-5.5V) enables direct battery-powered and USB-bus-powered designs. The PLCC-44 package also supports through-hole and socketed installation, easing prototype rework and field service. When designing with this part, observe the maximum 4 MHz clock input and ensure decoupling capacitors (typically 100 nF) are placed close to VDD/SS pins. The PLCC-44 socket footprint allows easy firmware swap during development. Industrial-grade operation covers -40C to +85C, suitable for most factory and outdoor environments. This page synthesizes distributor pricing, parametric alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC16LF874-04I/P - 8-bit MCU, 4MHz, 7KB Flash, 40-Pin DIP | Microchip
PIC16LF874-04I/P

PIC16LF874-04I/P - 8-bit MCU, 4MHz, 7KB Flash, 40-Pin DIP | Microchip

The Microchip Technology PIC16LF874-04I/P is a low-power, 8-bit RISC microcontroller in a 40-pin PDIP (DIP) through-hole package, featuring 7KB (4K x 14) of Flash program memory and 192 bytes of SRAM. It operates at up to 4MHz and includes 33 digital I/O lines, plus on-chip peripherals such as A/D, capture/compare/PWM, USART, and I2C/SPI interfaces. What is a PIC microcontroller? An 8-bit microcontroller is a single-chip computer built around an 8-bit data path, integrating a CPU core, program memory (Flash/ROM), data RAM, and peripherals (timers, communication, ADC) into one package. The PIC family from Microchip uses a Harvard RISC architecture with a small, deterministic instruction set (~35 instructions) and is widely used for embedded control because of its low cost, low power, and ease of programming. PIC microcontrollers sit within the broader hierarchy: microcontroller -> embedded processor -> semiconductor IC -> electronic component. Key features include operation across an industrial -40C to +85C temperature range (the 'I' suffix), 128 bytes of EEPROM data memory, an internal oscillator option, and a wide 2.0V to 5.5V supply range thanks to the 'LF' low-power/frequency designation. This dual-voltage flexibility supports battery-powered applications. Architecturally, the PIC16LF874 pairs a 14-bit instruction word with an 8-bit data path. The 40-pin PDIP form factor exposes up to 33 I/O lines, plus dedicated pins for ICSP programming, an external reset, and the two analog comparator inputs. Typical applications include industrial control boards, appliance controls, automotive body modules, sensor signal conditioning, and battery-driven instruments. When designing with the PIC16LF874-04I/P, ensure the crystal or resonator is placed within 1 cm of the OSC1/OSC2 pins. For low-power designs, use the internal RC oscillator to save components and current. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC16LF874A-I/L - 8-bit PIC MCU, 7KB Flash, 10MHz, 44-PLCC | Microchip
PIC16LF874A-I/L

PIC16LF874A-I/L - 8-bit PIC MCU, 7KB Flash, 10MHz, 44-PLCC | Microchip

The Microchip Technology PIC16LF874A-I/L is an 8-bit RISC microcontroller built on the PIC16 CPU core, featuring 7KB (4K x 14) of FLASH program memory, 192 bytes of RAM, and 33 digital I/O pins, housed in a 44-pin PLCC package (16.59 x 16.59 mm). The device operates up to 10 MHz and is designed for low-voltage (LF) applications, supporting a minimum supply voltage of 2.0V. A microcontroller (MCU) is a single-chip computer containing a processor core, program memory, data memory, and programmable I/O peripherals. The PIC16LF874A belongs to the PIC16F family of microcontrollers, which sit in the broader hierarchy of microcontroller -> embedded controller -> semiconductor device. The 'LF' prefix designates low-voltage operation, suitable for battery-powered and portable designs. The 'F' indicates FLASH-based program memory, enabling in-circuit reprogramming via ICSP. Key features of the PIC16LF874A-I/L include the enhanced 14-bit instruction set of the PIC16 architecture, integrated peripherals such as multiple timers, a 10-bit ADC, USART, MSSP (SPI/I2C), and capture/compare/PWM modules. The device supports In-Circuit Serial Programming (ICSP) and In-Circuit Debugger (ICD) interfaces, allowing field firmware updates and development without removing the chip from the PCB. The PIC16LF874A-I/L is fabricated using CMOS technology for low power consumption and operates over the industrial temperature range (-40C to +85C). Its Harvard architecture with separate program and data buses enables deterministic instruction execution, ideal for real-time control applications. The 44-PLCC package provides robust through-hole mounting with a socket-replaceable form factor, useful for prototyping and legacy designs. Typical applications include industrial control systems, automotive subsystems, sensor interface modules, home appliance controls, and battery-powered instrumentation. The combination of FLASH memory, integrated ADC, and USART makes this MCU a strong fit for embedded data acquisition nodes. When designing with the PIC16LF874A-I/L, ensure decoupling capacitors (0.1uF ceramic) are placed near each power pin. Verify the supply voltage stays within the LF family range, and use MPLAB X IDE with a compatible compiler (XC8) for firmware development. The device date-of-introduction is 1998-12-01, indicating it is a long-established part. This page synthesizes distributor pricing, drop-in equivalents, and practical design notes not found in the standalone manufacturer datasheet, helping engineers and procurement teams evaluate this Microchip MCU for new and legacy designs.

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PIC16LF874A-I/ML - 8-bit MCU, 7KB Flash, 33 I/O | Microchip
PIC16LF874A-I/ML

PIC16LF874A-I/ML - 8-bit MCU, 7KB Flash, 33 I/O | Microchip

The Microchip Technology PIC16LF874A-I/ML is a low-power CMOS 8-bit flash microcontroller built on the enhanced PIC16 mid-range core, packaged in a 44-pin QFN (ML) with exposed pad, and offering 7 KB (4K x 14) of program memory, 192 bytes of SRAM, and 128 bytes of EEPROM data memory. The device executes instructions in 200 ns at a 20 MHz oscillator input, supports up to 33 digital I/O pins, and integrates a 10-bit A/D converter with up to 8 channels, two analog comparators, a USART, an SSP (SPI/I2C), and capture/compare/PWM modules. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (Flash/ROM), data memory (RAM), and peripherals onto one silicon die. Within the broader taxonomy, the PIC16LF874A belongs to the 8-bit MCU -> microcontroller -> embedded controller -> semiconductor hierarchy. The 'LF' prefix denotes the low-voltage, low-power process variant that operates across an extended 2.0V to 5.5V range, making it well-suited to battery-powered or energy-harvesting designs. Key differentiating features of the PIC16LF874A include its 35 single-word instruction RISC architecture, self-programming capability, in-circuit debugging (ICD) support, and 10 MIPS sustained throughput. The 44-pin QFN (ML) package offers a small 8x8 mm footprint with an exposed thermal pad that improves power dissipation versus leaded PLCC packages, while remaining compatible with the PIC16F874A pinout (differing only in core voltage range). The device uses a Harvard architecture with separate program and data memory buses, enabling simultaneous instruction fetch and operand access. The enhanced core adds 14-bit instructions, hardware multiplier support (via software libraries), interrupt handling with shadow registers, and a wide peripheral set including the Enhanced USART and MSSP peripheral for SPI and I2C communications. Typical applications include industrial control panels, sensor signal conditioning, low-power remote sensor nodes, motor control loops with feedback sensing, and consumer appliance user interfaces. The 10-bit ADC with 8 input channels makes it a fit for analog sensor reading systems. Consider whether legacy 5V systems should use the PIC16F874A variant instead, while the LF suffix guarantees operation down to 2.0V for newer low-voltage designs. When designing with this device, ensure the exposed pad (EP) is soldered to the ground plane for proper thermal performance and that the configuration bits are correctly set for the chosen oscillator mode. Programming via ICSP requires Vpp, ICSPCLK, and ICSPDAT access on dedicated pins.

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PIC16LF874AT-I/L - 8-Bit Flash MCU, 7KB, 44-Pin PLCC | Microchip
PIC16LF874AT-I/L

PIC16LF874AT-I/L - 8-Bit Flash MCU, 7KB, 44-Pin PLCC | Microchip

The Microchip Technology PIC16LF874AT-I/L is an 8-bit RISC flash microcontroller with 7KB of program memory and 192 bytes of RAM, housed in a 44-pin PLCC (J-lead) package and rated for industrial temperature operation. It executes instructions in a 200 ns cycle at 20 MHz, delivering up to 5 MIPS of throughput while consuming very low power through its 'LF' (low-voltage, low-power) silicon process. A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, working RAM, and a configurable set of peripherals such as timers, communications interfaces, and analog-to-digital converters. The PIC16 family sits in Microchip's 8-bit mid-range architecture hierarchy: PIC10/PIC12/PIC16/PIC18 microcontrollers -> 8-bit MCU -> microcontroller -> embedded processing -> semiconductor. The 'LF' prefix designates a wide-voltage (2.0 V to 5.5 V) low-power process technology, making these parts ideal for battery-powered and energy-constrained designs. Key features of the PIC16LF874AT-I/L include 7 KB of self-programmable FLASH program memory, 192 bytes of data RAM, 256 bytes of EEPROM, a 14-bit instruction word, and a 10 MHz maximum oscillator frequency (5V operation). The integrated peripherals list 8 channels of 10-bit A/D conversion, a USART, MSSP supporting both SPI and I2C (master/slave), two capture/compare/PWM modules, a watchdog timer with its own on-chip RC oscillator, and an 8-bit parallel slave port for external memory expansion. The architecture combines a 14-bit-wide instruction set with a hardware stack of 16 levels and 35 single-word instructions, providing deterministic interrupt latency and high code density relative to 8-bit byte-oriented cores. The 'LF' process supports the full 2.0 V to 5.5 V operating window, enabling designs that migrate between 3.3 V and 5 V rails without re-spinning firmware. The 44-pin PLCC package provides generous I/O count and supports in-circuit serial programming (ICSP) via RB6/RB7. Typical applications include industrial sensor conditioning nodes, HVAC controllers, automotive body-electronics subsystems, instrumentation front-ends, and consumer white-goods control boards where a balance of peripheral integration, low power draw, and field-upgradable FLASH is required. Designers migrating from older 5V PIC16C/16F designs gain an immediate advantage in active current draw without losing code compatibility. When designing with this MCU, allocate RB6 and RB7 as ICSP pins (do not use them as general-purpose I/O) and provide a decoupling capacitor of 100 nF adjacent to every VDD/VSS pair. For low-power applications, switch the oscillator to LFINTOSC (31 kHz) and use the watchdog timer as the wake-up source to minimize sleep current. This page synthesizes verified distributor pricing, schematic-package-correct drop-in alternatives, and practical design notes not found standalone in the manufacturer datasheet.

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PIC16LF874AT-I/ML - 8-bit PIC MCU, 7KB Flash, 44-QFN | Microchip
PIC16LF874AT-I/ML

PIC16LF874AT-I/ML - 8-bit PIC MCU, 7KB Flash, 44-QFN | Microchip

The Microchip Technology PIC16LF874AT-I/ML is an 8-bit PIC microcontroller built around the enhanced mid-range PIC16 core, delivering up to 10 MIPS at 20 MHz maximum clock and offering 7 KB (4K x 14) of self-programmable Flash program memory. The part comes in a 44-lead QFN (8x8 mm) package with an exposed thermal pad, integrates 192 bytes of SRAM and 128 bytes of EEPROM data memory, and exposes 33 general-purpose digital I/O pins for mixed-signal embedded designs. A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, working RAM, data EEPROM, and a rich set of on-chip peripherals such as timers, ADC, communication ports, and I/O. Within the broader semiconductor taxonomy, the PIC16LF874A belongs to the 8-bit microcontroller family, which sits below 16-bit dsPIC and 32-bit Cortex-M devices in performance but above simple discrete logic in integration. The PIC16 architecture is a Harvard RISC design with separate program and data buses, instruction pipelining, and a compact 14-bit instruction word optimized for deterministic real-time control. Key features include a 10-bit successive-approximation ADC with up to 8 input channels, a USART/SCI module for asynchronous and synchronous serial, an MSSP module supporting both SPI and I2C (master/slave), two 8-bit timers plus one 16-bit timer, a 10 MHz internal oscillator option, an in-circuit serial programming (ICSP) interface for field updates, and an integrated brown-out reset and watchdog timer for safe operation. The wide 2.0 V to 5.5 V supply range (LF low-voltage variant) lets the device run directly from a lithium cell or a regulated 3.3 V/5 V rail. Architecturally, the device uses a 14-bit wide program-memory word and an 8-bit data path, with hardware stack and interrupt controller supporting up to 14 interrupt sources. In-system programmability via ICSP eliminates the need for a socketed programmer and enables bootloader-style firmware upgrades in deployed equipment. The CMOS process with low-power sleep modes keeps active current low while the integrated peripherals minimize external component count. Typical applications include industrial sensor interfaces, low-power remote sensing nodes, consumer appliance controls, automotive body electronics sub-modules, battery-powered instruments, USB-to-UART bridges, and general-purpose embedded control for small-to-medium complexity products. The combination of 33 I/O, 7 KB Flash, and on-chip ADC/serial peripherals makes it well suited as a bridge between analog sensors and a host processor. When designing with this part, plan for ICSP header access (PGD/PGC pins) on the PCB to allow in-circuit firmware updates, place a 100 nF decoupling capacitor within 5 mm of each VDD pin and a bulk 10 uF tantalum or ceramic near the exposed pad, and verify that the chosen development toolchain (MPLAB X IDE with XC8 compiler) supports the exact PIC16LF874A silicon revision installed on the board. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in any single manufacturer datasheet.

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PIC16LF874AT-I/PT - 8-bit MCU 7KB Flash 33 I/O TQFP-44 | Microchip
PIC16LF874AT-I/PT

PIC16LF874AT-I/PT - 8-bit MCU 7KB Flash 33 I/O TQFP-44 | Microchip

The Microchip Technology PIC16LF874AT-I/PT is an 8-bit PIC16 microcontroller based on the enhanced RISC architecture, delivering 10 MIPS performance with 7KB (4K x 14 words) of Flash program memory, 192 bytes of RAM, and 33 digital I/O pins in a 44-pin TQFP (10x10 mm) package. It operates from 2.0V to 5.5V, features a 10 MHz internal oscillator option, and integrates a 10-bit ADC, Capture/Compare/PWM (CCP), USART, I2C, and SPI peripherals. The "LF" prefix denotes the low-power process node optimized for battery-operated designs. A PIC16 microcontroller is an 8-bit Harvard-architecture RISC device from Microchip's mid-range family, sitting in the hierarchy: PIC16 -> PIC microcontroller -> 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. The PIC16F family is one of the most widely deployed 8-bit MCU platforms in industrial, automotive, and consumer products because of its deterministic instruction set, low power consumption, and the free MPLAB X IDE + XC8 toolchain. The mid-range core executes one instruction per clock cycle, giving throughput close to many 16-bit cores at much lower cost. The PIC16LF874AT-I/PT's 33 I/O pins (out of 44 package pins) share pins with the on-chip ADC and serial peripherals, and five ports (PORTA through PORTE) are organized with bidirectional capability and individual interrupt-on-change support. The 8-channel 10-bit ADC provides analog input for sensor conditioning, while the USART, MSSP (I2C/SPI), and parallel slave port give flexible connectivity for sensors, displays, and peer MCUs. The device also includes a parallel slave port for external memory or bus expansion in legacy designs. Typical applications include industrial control panels, HVAC sensor interfaces, automotive body electronics (non-safety), battery-powered instrumentation, and white-goods user interfaces. The wide 2.0-5.5V supply range, low-power nanoWatt technology, and proven PIC16 instruction set make it well-suited for retrofit and long-lifecycle products. When designing with this device, the 33 I/O count and TQFP-44 footprint constrain PCB layout and require careful ADC trace routing to minimize digital noise coupling. For new designs, evaluate newer PIC16F1xxx Enhanced Mid-range parts with more memory and Core Independent Peripherals; for legacy drop-in replacement, only same-family same-pinout PIC16F874A variants are pin-compatible.

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PIC16LF874T-04/L - 8-Bit 4MHz 7KB Flash MCU | Microchip
PIC16LF874T-04/L

PIC16LF874T-04/L - 8-Bit 4MHz 7KB Flash MCU | Microchip

The Microchip Technology PIC16LF874T-04/L is an 8-bit PIC microcontroller from the PIC16F family, featuring a 4 MHz CPU core, 7 KB (4K x 14) of Flash program memory, 192 bytes of SRAM, and 128 bytes of EEPROM data memory, housed in a 44-pin PLCC surface-mount package (16.59 x 16.59 mm). An 8-bit microcontroller (MCU) is a self-contained computing element that integrates a CPU, non-volatile program memory, volatile working RAM, peripheral set, and I/O onto a single silicon die. In the broader taxonomy, MCUs sit between discrete logic and full microprocessors: they trade raw computation throughput for deterministic real-time control, low power draw, and small board area. The PIC16F family is one of the longest-running mid-range 8-bit architectures from Microchip and is widely used in embedded control where cost, footprint, and deterministic interrupt latency outweigh the need for 32-bit performance. Key specifications of the PIC16LF874T-04/L include 33 digital I/O pins, an operating voltage range of 2.0 V to 5.5 V (the LF prefix denotes the low-voltage variant), a commercial operating temperature grade of 0 °C to +70 °C, and integrated peripherals such as a 10-bit ADC, capture/compare/PWM (CCP) modules, USART, SPI, and I2C. The device supports in-circuit debugging via the ICSP interface. The 'LF' prefix indicates the wide-voltage CMOS process, which lets the part run from a single lithium cell or 3.3 V regulated rail. The 04 speed suffix corresponds to a 4 MHz oscillator input, and the /L suffix denotes the 44-pin PLCC package. The T suffix indicates tape-and-reel packaging for high-volume SMT assembly. The PLCC-44 footprint offers socket-friendly replaceability, which is useful in legacy industrial designs where field serviceability still matters. Typical applications for the PIC16LF874T-04/L include industrial motor-control boards, HVAC damper and valve actuators, low-power sensor nodes, and consumer appliance controllers. The 33 I/O lines and ADC channels are sufficient to multiplex several analog sensors while still driving displays, keypads, and isolated relay outputs. When designing with this part, evaluate whether the 4 MHz instruction rate is sufficient for the control loop. If tighter timing is required, consider the 20 MHz -20 speed grade or migrate to the pin-compatible PIC16F877A in the same PLCC-44 footprint. This page combines current distributor pricing, parametric drop-in alternatives, and practical design notes not found on a single manufacturer datasheet PDF, giving procurement and engineering teams a single consolidated decision point.

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PIC16LF874T-04/PT - 8-Bit MCU, 7KB Flash, 4MHz, 44-TQFP | Microchip
PIC16LF874T-04/PT

PIC16LF874T-04/PT - 8-Bit MCU, 7KB Flash, 4MHz, 44-TQFP | Microchip

The Microchip Technology PIC16LF874T-04/PT is a low-power 8-bit PIC microcontroller from the PIC16F family, delivering 7KB (4K x 14) of Flash program memory, 192 bytes of RAM, and 128 bytes of data EEPROM in a 44-pin TQFP package measuring 10x10 mm. The device operates from a 2.0V to 5.5V supply, executes one instruction per cycle at up to 4MHz clock input, and is fabricated in CMOS process technology. An 8-bit microcontroller (MCU) is a programmable logic device with an internal CPU, data and program memory, and integrated peripherals such as timers, ADC, and serial interfaces. PIC16F-family MCUs use a Harvard-architecture RISC core with 35 single-word instructions, placing them in the product hierarchy of microcontroller -> 8-bit MCU -> embedded controller -> semiconductor. The 'LF' prefix indicates the low-voltage, low-power process variant suited to battery-powered and portable designs. Key features highlighted in the Microchip datasheet include an integrated 10-bit Analog-to-Digital Converter with up to 8 channels, two 8-bit timers plus one 16-bit timer, a Watchdog Timer (WDT), Power-On Reset (POR), and Brown-Out Reset (BOR). Communication peripherals include I2C (SSP), SPI (SSP), USART, and a Parallel Slave Port. The ICSP (In-Circuit Serial Programming) interface enables in-field firmware updates via two signal pins without removing the device from the board. Typical applications include industrial control panels, low-cost sensor conditioning nodes, RS-232/RS-485 protocol bridges, and small motor-control boards where 8-bit predictability and minimal BOM cost are more important than DSP throughput. The 33 available I/O pins plus dedicated peripheral lines allow direct drive of LEDs, relays, and keypads. When laying out the PCB, assign decoupling capacitors (0.1uF ceramic minimum) as close to VDD/AVDD and VSS/AVSS as possible, keep the 4MHz crystal traces short and symmetrical, and reserve ICSP test pads to enable post-assembly firmware load. For battery applications, evaluate the LF suffix deliberately because the device enters nanoWatt sleep modes that drop current well below the 5V-rated PIC16F874.

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PIC16LF874T-04I/L - 8-bit 4MHz MCU 7KB Flash 44-PLCC | Microchip
PIC16LF874T-04I/L

PIC16LF874T-04I/L - 8-bit 4MHz MCU 7KB Flash 44-PLCC | Microchip

The Microchip PIC16LF874T-04I/L is an 8-bit PIC microcontroller based on the mid-range PIC16 RISC architecture, delivering 4 MHz (200 ns instruction cycle) performance with 7 KB of Flash program memory, 192 bytes of RAM, and 128 bytes of EEPROM in a 44-pin PLCC package. Housed in the leaded 16.59 x 16.59 mm PLCC-44 (L) surface-mount package, this part carries the tape-and-reel (T) and industrial temperature (-I: -40C to +85C) suffixes and operates from a 2.0 V to 5.5 V supply with a maximum clock of 4 MHz at the low-voltage 'LF' core designation. What is a PIC16 mid-range microcontroller? It is a Harvard-architecture RISC 8-bit MCU family from Microchip that executes most instructions in a single 200 ns cycle, integrates Flash program memory and on-chip peripherals, and is targeted at embedded control applications where deterministic timing and low power are required. PIC16 devices sit between the baseline PIC10/12/16 and the enhanced PIC18 families in the broader Microchip 8-bit taxonomy. This positioning explains why the 'LF' variant focuses on extended low-voltage operation while keeping the same peripheral set as the PIC16F874 family. Key features include 33 digital I/O pins, three timers (Timer0, Timer1, Timer2), a 10-bit multi-channel ADC, two PWM/Compare/Capture modules, an MSSP for SPI or I2C, a USART, and a parallel slave port. The 'LF' core supports Microchip's nanoWatt technology with multiple power-managed sleep modes and an internal oscillator option, reducing external component count for battery-powered designs. Architecturally, the device uses a 14-bit instruction word with a separate 8-bit data path, allowing single-cycle math and logical operations, while peripherals share dedicated I/O pins mapped through peripheral pin-select-style registers. The ICSP (In-Circuit Serial Programming) interface allows firmware updates after PCB assembly, accelerating bring-up and field service. The wide 2.0 V to 5.5 V supply range covers both 3.3 V and 5 V rails commonly used in industrial and consumer designs. Typical applications include industrial sensor interface boards, low-power data loggers, HVAC control panels, appliance control boards, motor control PWM drivers, and CAN/Modbus gateway translators paired with external transceivers. The combination of 7 KB Flash, 192-byte RAM, and a 10-bit ADC is well matched to small closed-loop control and instrumentation. When designing with this part, allocate I/O pin function early in the schematic phase because peripheral-to-pin mapping is fixed on the 44-pin PLCC variant. Place a 100 nF decoupling capacitor within 3 mm of each VDD/VSS pair and follow Microchip AN585 for in-circuit programming header layout to keep field firmware updates painless. This page synthesizes verified distributor pricing, drop-in same-package alternatives, and practical design considerations not collected in the manufacturer datasheet, supporting faster component selection for PIC16 mid-range designs.

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PIC16LF874T-04I/PQ - 8-bit PIC MCU, 7KB Flash, 44-MQFP | Microchip
PIC16LF874T-04I/PQ

PIC16LF874T-04I/PQ - 8-bit PIC MCU, 7KB Flash, 44-MQFP | Microchip

The Microchip Technology PIC16LF874T-04I/PQ is an 8-bit RISC PIC16F-family microcontroller featuring 7KB (4K x 14) of FLASH program memory, 192 bytes of RAM, and 33 general-purpose I/O pins in a 44-pin MQFP (10x10 mm) surface-mount package. It executes instructions at a 4 MHz clock and operates from a wide 2.0V to 5.5V supply, and the T-suffix variant ships on tape and reel for high-volume assembly. A microcontroller (MCU) is a single-chip computer containing a CPU core, non-volatile program memory, working RAM, and a configurable set of peripheral blocks. The 8-bit PIC16F microcontrollers sit at the entry level of Microchip's PIC architecture hierarchy (PIC10/12/16/18/24/32, dsPIC, PIC32) and are commonly used as glue logic, sensor-interface controllers, and small state machines in mixed-signal systems. Low-voltage F (LF) variants add extended supply-range operation for battery-powered and energy-harvesting designs where the standard PIC16F parts would not regulate correctly below 4.5V. Key features include integrated peripherals such as Brown-out Detect/Reset (BOR), Power-On Reset (POR), Pulse Width Modulation (PWM), Watchdog Timer (WDT), an A/D converter, and a USART. The 8-bit RISC instruction set reduces code density overhead, while the 14-bit wide FLASH word enables compact program storage. The 33 I/O pins support direct interfacing to LEDs, keypads, LCDs, and analog sensors without external glue logic. The PIC16LF874T-04I/PQ is targeted at industrial control, automotive subsystems, and consumer electronics where deterministic 8-bit performance, low cost, and proven PIC tool-chain support outweigh the need for higher MIPS or DSP capability. The 44-MQFP package provides generous pin-out for parallel buses and analog front-end connections. This -04I variant is rated for the industrial temperature range (-40C to +85C) and operates at up to 4 MHz from a 5V supply. When designing with this MCU, ensure the MCLR reset circuit includes the datasheet-recommended pull-up, and decouple VDD with a 0.1 uF ceramic placed within 5 mm of the supply pin. For in-circuit serial programming (ICSP), reserve the dedicated PGD/PGC pins and isolate them from heavy-load traces to preserve programming margin. This page synthesizes distributor pricing, drop-in MQFP alternatives, and practical design notes not found in the manufacturer datasheet alone.

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