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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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PIC16LF874T-04I/PT - 8-Bit 4MHz MCU 7KB Flash 33 I/O | Microchip
PIC16LF874T-04I/PT

PIC16LF874T-04I/PT - 8-Bit 4MHz MCU 7KB Flash 33 I/O | Microchip

The Microchip Technology PIC16LF874T-04I/PT is an 8-bit RISC microcontroller featuring 7KB (4K x 14) of FLASH program memory, 192 bytes of RAM, and 128 bytes of data EEPROM, packaged in a 44-pin TQFP (10x10 mm). It operates at a maximum clock frequency of 4MHz across an industrial temperature grade of -40C to +85C with a supply voltage range of 2.0V to 5.5V. The device integrates 33 general-purpose digital I/O pins and is qualified to Microchip's PIC16F mid-range core family with 14-bit wide instruction words. A PIC16F series microcontroller is a CMOS Flash-based 8-bit device built on Microchip's enhanced Mid-Range RISC architecture. It belongs to the broader microcontroller hierarchy of embedded MCU -> 8-bit MCU -> Harvard architecture MCU -> CMOS RISC controller -> integrated circuit. The PIC16F family is widely used because it provides deterministic instruction execution (one instruction per clock cycle, after pipeline fill), simple peripheral integration, and a mature toolchain (MPLAB X IDE + XC8 compiler + PICkit programmer), making it a workhorse for low-power embedded control. Key features of the PIC16LF874T-04I/PT include Brown-out Detect/Reset (BOR), Power-On Reset (POR), Pulse Width Modulation (PWM) outputs, a Watchdog Timer (WDT) for runaway code recovery, and an integrated ICD (In-Circuit Debug) interface. The 'LF' prefix denotes the low-voltage variant, allowing operation down to 2.0V, while the 'T' suffix indicates Tape & Reel packaging. The 'I' temperature grade extends operation to the industrial -40C to +85C range, suitable for outdoor and factory automation environments. The '04' speed suffix corresponds to a 4MHz maximum oscillator input. The PIC16LF874T-04I/PT uses an external crystal or RC oscillator to drive the internal 4-cycle pipeline, achieving 1 MIPS throughput at 4MHz. The 'LF' (low-voltage/frequency) device supports nanoWatt technology with multiple sleep modes for battery-powered designs. Typical applications include industrial control systems, motor control front-ends, sensor signal conditioning with PWM drive, low-power remote sensor nodes, and small-form-factor consumer appliances. The wide 2.0V-5.5V range and low quiescent current make it suitable for battery-powered products running from 2x AA cells or a single Li-ion cell. When designing with this part, ensure the MCLR reset line is properly pulled up through a resistor and that decoupling capacitors (typically 100 nF plus 10 uF bulk) are placed within 5 mm of VDD/AVDD pins. The BOR threshold should be configured to match the lowest expected VDD rail to prevent code corruption during brown-out events. This page synthesizes distributor pricing, drop-in alternatives including automotive-grade and speed-grade variants, and practical design considerations not consolidated in the manufacturer datasheet alone.

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PIC16LF876-04/SO - 8-Bit 4MHz 14KB Flash MCU | Microchip | SOIC-28
PIC16LF876-04/SO

PIC16LF876-04/SO - 8-Bit 4MHz 14KB Flash MCU | Microchip | SOIC-28

The Microchip Technology PIC16LF876-04/SO is an 8-bit CMOS Flash-based microcontroller from the PIC16F family, featuring 14KB (8K x 14) of on-chip Flash program memory, 368 bytes of RAM, and operating at up to 4 MHz instruction frequency, all packaged in a 28-pin SOIC (SO) wide-body outline. The 'LF' prefix designates the low-voltage variant supporting operation from 2.0V to 5.5V, while the '04' speed grade denotes the 4 MHz maximum clock and the 'SO' suffix identifies the 28-pin small-outline IC package. A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory (Flash/ROM), data memory (RAM), and integrated peripherals such as timers, ADC, communication interfaces, and I/O ports. The PIC16F family belongs to Microchip's mid-range 14-bit instruction set architecture, sitting between the baseline 12-bit PIC10/12/16 cores and the enhanced 16-bit PIC18 family in the broader PIC taxonomy: PIC10/12 baseline -> PIC16 mid-range -> PIC18 enhanced -> dsPIC33/PIC32 16-bit. Mid-range MCUs balance code density, peripheral integration, and low power consumption, making them ubiquitous in embedded control. Key features of the PIC16LF876-04/SO include 256 bytes of EEPROM data memory, 22 digital I/O pins, a 10-bit analog-to-digital converter (ADC) with up to 8 channels, three timers (Timer0, Timer1, Timer2), a synchronous/asynchronous serial port (USART/SCI), and a Master Synchronous Serial Port (MSSP) supporting both SPI and I2C modes. The 35 single-word instruction RISC core delivers 200 ns instruction execution at 20 MHz equivalent and 1 µs at 4 MHz. The wide 2.0V-5.5V supply range enables direct battery operation from a single lithium cell (3.6V nominal) or 5V regulated rails. The architecture uses a Harvard-style separate program and data bus, with Flash program memory accessed via a 14-bit instruction word, supporting self-programming and in-circuit serial programming (ICSP) through two dedicated pins. Brown-out reset (BOR), power-on reset (POR), watchdog timer (WDT), and a low-power SLEEP mode enhance robustness in unattended applications. The instruction set is largely upward-compatible with PIC16C5X, PIC12CXXX, and PIC16C7X devices, simplifying code migration. Typical applications include industrial control, IoT edge nodes, motor control and metering, low-power sensor boards, embedded automation, and consumer products where a 28-pin footprint and 4 MHz performance are sufficient. It is also widely used in educational platforms and legacy product retrofits. When designing with this MCU, plan for the 28-pin SOIC wide-body (300 mil) footprint, ensure decoupling with a 100 nF ceramic cap on VDD, and reserve the ICSPDAT/ICSPCLK pins (RB7/RB6 or RB3/RB4 depending on configuration) for in-circuit programming headers. For new designs consider the pin-compatible PIC16F886 (more peripherals) or PIC16F876A (enhanced ADC) drop-in upgrades. This page synthesizes distributor pricing, drop-in alternatives, application recommendations, and practical design notes not aggregated on any single distributor page.

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PIC16LF876-04/SP - 4MHz 8-bit Flash MCU, 14KB | Microchip
PIC16LF876-04/SP

PIC16LF876-04/SP - 4MHz 8-bit Flash MCU, 14KB | Microchip

The Microchip Technology PIC16LF876-04/SP is an 8-bit CMOS Flash microcontroller from the PIC16F family, delivering 4 MHz maximum operating frequency with 14 KB (8K x 14) of Flash program memory and 368 bytes of RAM. Housed in a 28-pin SPDIP (Skinny Plastic DIP) through-hole package, this part is engineered for low-power, low-voltage embedded applications operating from 2.0 V to 5.5 V supply rails. An 8-bit microcontroller (MCU) is a single-chip processor that integrates a CPU, RAM, program memory, and peripherals into one package. Within the broader taxonomy, the PIC16LF876 sits at: PIC microcontroller -> 8-bit MCU -> Flash-programmable MCU -> low-power (LF) variant -> embedded controller. The "LF" prefix denotes Microchip's low-voltage process that supports operation down to 2.0 V, compared to the standard "F" parts that require 4.0 V minimum. This makes the LF876 ideal for battery-powered or energy-harvesting designs where a standard F-variant part cannot start up reliably. Key features include 22 digital I/O pins, a 10-bit multi-channel ADC, USART, MSSP (SPI/I2C), two 8-bit timers plus one 16-bit timer, a 256-byte EEPROM data area, and in-circuit serial programming (ICSP) via two pins. Peripherals are mapped to dedicated pins and are documented in the device datasheet, which also covers the mid-range 14-bit instruction set with 35 single-word instructions. The PIC16LF876-04/SP uses Harvard architecture with separate program and data buses, allowing instruction fetch and data access in a single cycle. This architectural choice delivers deterministic interrupt latency and predictable timing for real-time control loops, which is one reason the PIC mid-range family remains popular in industrial, appliance, and automotive-body applications decades after introduction. Typical applications include battery-powered sensor nodes, low-power remote controls, HVAC thermostat controllers, appliance user interfaces, simple motor control, and white-goods control boards. The wide 2.0 V to 5.5 V range supports direct connection to single-cell Li-ion or 3-cell alkaline supplies without additional regulation. When designing with this part, note the "-04" speed suffix indicates a 4 MHz part; the "-20" suffix denotes a 20 MHz variant. Pick the -04 version when you need relaxed timing for EMI-sensitive or low-power applications, and choose the -20 part only when you need the additional throughput. The PIC16F876A is the recommended migration path for new designs as Microchip has announced the PIC16F886 as the modern replacement. This page synthesizes distributor pricing, drop-in SPDIP alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC16LF876-04I/SO - 4MHz 8-bit Flash MCU, 14KB, 28-SOIC | Microchip
PIC16LF876-04I/SO

PIC16LF876-04I/SO - 4MHz 8-bit Flash MCU, 14KB, 28-SOIC | Microchip

The Microchip Technology PIC16LF876-04I/SO is a low-voltage, CMOS FLASH-based 8-bit microcontroller from the PIC® 16F mid-range family, executing instructions at 4MHz (200 ns instruction cycle) and integrating 14KB of on-chip program memory (8K x 14 words), 368 bytes of RAM and 256 bytes of EEPROM data memory in a 28-pin SOIC (SO) wide-body package. It operates across a 2.0V to 5.5V supply range tailored for battery-powered and portable designs, includes an internal 4MHz RC oscillator option, and provides 22 digital I/O pins multiplexed with on-chip peripherals. A PIC microcontroller is a compact programmable processor that integrates CPU core, non-volatile program memory, RAM, EEPROM, timers, ADC, and communication peripherals on a single die, designed for deterministic real-time control in cost- and power-sensitive embedded systems. Within the broader taxonomy, PIC16LF876 belongs to the 8-bit microcontroller class, which sits inside the larger family of microcontrollers (MCUs), integrated circuits (ICs), and semiconductors. Its mid-range 14-bit instruction set is upwards compatible with PIC12CXXX and PIC16C7X predecessors, simplifying firmware migration and protecting legacy code investments. Key features include 5 channels of 10-bit analog-to-digital conversion, a USART/SCI for asynchronous serial communication, an MSSP module supporting both SPI and I²C (master/slave), two 8-bit timers and one 16-bit timer with capture/compare/PWM capability, plus a watchdog timer with on-chip low-power RC oscillator for reliable operation. The LF prefix denotes an extended low-voltage operating range, the 04 suffix specifies the 4MHz speed grade, and the I suffix indicates the industrial -40C to +85C operating temperature range suitable for harsh-environment embedded designs. The PIC16LF876 is built on Microchip's proprietary CMOS FLASH process with nanoWatt power management technology, providing power-managed modes (Run, Idle, Sleep) and ultra-low standby currents well below 1 µA in Sleep, enabling multi-year battery life in IoT edge nodes, remote sensors, and metering applications. The Harvard architecture separates program and data buses for predictable single-cycle instruction execution, and the 8-level hardware stack plus interrupt controller support real-time responsiveness in motor, power conversion, and sensor-conditioning loops. Typical applications include industrial automation sensor interfaces, portable medical monitoring devices, automotive body and accessory ECUs (non-safety), smart energy metering, consumer appliance control boards, and low-cost USB-to-UART bridging firmware platforms. With 22 general-purpose I/O pins plus dedicated peripheral lines, the device addresses moderate-complexity embedded designs that exceed 8-bit PIC16F84-class capabilities but do not yet justify the cost or footprint of a 40-pin PIC18F or dsPIC33 part. When designing with this MCU, reserve one I/O pin for the ICSP programming interface (typically RB6/RB7 clock/data) and design for in-circuit serial programming access without removing the part from the board. Add a 100 nF decoupling capacitor adjacent to VDD and consider MCLR pull-up behavior if the device is used in noisy motor or relay environments. This page synthesizes distributor pricing, drop-in same-package alternatives (PIC16F876A-I/SO, PIC16F876-04I/SO), parametric comparison, and practical design notes not found in the manufacturer datasheet alone.

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PIC16LF876-04I/SP - 8-bit MCU, 14KB Flash, 4MHz, 28-SPDIP | Microchip
PIC16LF876-04I/SP

PIC16LF876-04I/SP - 8-bit MCU, 14KB Flash, 4MHz, 28-SPDIP | Microchip

The Microchip Technology PIC16LF876-04I/SP is a low-power 8-bit PIC microcontroller based on a RISC architecture, featuring 14KB (8K x 14) of Flash program memory, 368 bytes of SRAM, and 256 bytes of EEPROM in a 28-pin SPDIP (Skinny Plastic DIP) through-hole package. It executes instructions at 4MHz with a 200ns instruction cycle and operates from 2.0V to 5.5V, making it suited for both 3.3V and 5V designs. An 8-bit microcontroller is a single-chip computer that integrates a CPU, RAM, non-volatile program memory, and peripheral interfaces on a single die. PIC microcontrollers use a Harvard RISC architecture with a small instruction set (35 single-word instructions) and one accumulator (W) plus a memory-mapped I/O register file, enabling deterministic execution and code compactness. The PIC16F family sits in the Microchip mid-range portfolio between 6-pin baseline PIC10/12/16 parts and 80+ pin PIC18/PIC24 high-pin-count families. The PIC16LF876 includes five 10-bit ADC channels, two 8-bit timers plus one 16-bit timer, a synchronous serial port configurable for SPI or I2C (MSSP), an enhanced USART, a capture/compare/PWM (CCP) module, and a 10-bit ADC. The LF suffix denotes an extended low-voltage operating range down to 2.0V, supporting battery-powered applications. The -04 suffix indicates the 4MHz maximum oscillator frequency, and I denotes the industrial -40C to +85C temperature grade. The device uses a 14-bit instruction word and includes an in-circuit serial programming (ICSP) interface plus an ICD-friendly debug port. Internal RC and crystal oscillator options enable operation without external clock components in cost-sensitive designs. The 22 I/O pins support peripheral pin select via the standard PIC16F peripheral mapping. Typical applications include industrial sensor interfaces, low-power instrumentation, HVAC controllers, motor control PWM, and battery-powered remote sensor nodes. The 28-SPDIP package simplifies prototyping and rework on through-hole PCBs and breadboards. When designing, ensure the MCLR reset circuit includes the recommended 10k pull-up and that Vdd is decoupled with a 100nF ceramic cap within 5mm of the package pin. Use ICD2/ICD3/PICKit3 for in-circuit debug rather than the older parallel programming interface. This page synthesizes 28-SPDIP cross-reference data, parametric equivalents, and practical design notes not found in the standalone manufacturer datasheet.

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PIC16LF876A-I/ML - 8-Bit 10MHz 14KB Flash 28-QFN MCU | Microchip
PIC16LF876A-I/ML

PIC16LF876A-I/ML - 8-Bit 10MHz 14KB Flash 28-QFN MCU | Microchip

The Microchip Technology PIC16LF876A-I/ML is an 8-bit RISC PIC16-family CMOS flash microcontroller (MCU) with 14KB (8K x 14 words) of on-chip program flash, 368 bytes of data SRAM, and 256 bytes of data EEPROM, housed in a 28-pin QFN (6x6 mm) package with an exposed thermal pad. A microcontroller is a single-chip computer that integrates a CPU core, program memory, working RAM, non-volatile storage, and peripheral interfaces onto one silicon die. The PIC16 mid-range family (PIC16F/LF) is Microchip's most widely deployed 8-bit architecture; the LF prefix denotes the extended low-voltage (2.0-5.5V) variant versus the standard F (4.5-5.5V) range. The PIC16LF876A executes one instruction per 200 ns internal cycle at 20 MHz oscillator, with a Harvard RISC core, 14-bit instruction word, and 35 single-word instructions, and is source- and object-code compatible with the PIC16C5X, PIC12CXXX, PIC16C7X, and PIC16F87XA predecessors. Key differentiating features of the PIC16LF876A-I/ML are: 22 digital I/O pins, three serial peripherals (USART/SCI, MSSP-SPI, MSSP-I2C in master/slave modes), ten 10-bit ADC channels, two analog comparators, two 8-bit timers plus one 16-bit timer, a 200 ns instruction execution time, and an ICD (In-Circuit Debugger) interface for MPLAB ICD 2/3 in-system programming. The device supports self-programming via ICSP and is engineered for low-power operation, with brown-out reset, power-on reset, watchdog timer with on-chip RC oscillator, and a wide 2.0-5.5V operating range. Architecturally, the PIC16LF876A uses a 14-bit instruction width with an 8-bit data path, dual-port SRAM banking, a shared peripheral bus, and an internal 4 MHz factory-calibrated RC oscillator that can be selected at run time. The PIC16LF876A is a parametric refresh of the legacy PIC16F876A: identical peripherals and pinout, but with extended low-voltage operation. The -I/ML suffix designates the industrial temperature grade (-40 to +85 C) and the 28-pin QFN (ML) package. Typical applications include sensor-conditioning front-ends, motor-control signal processing, battery-powered embedded nodes, and industrial-control subsystems. The wide voltage range, ADC, comparators, and timers let designers replace multiple discrete components with one IC. Designers migrating from older PIC16F876A designs benefit from a drop-in replacement that adds extended low-voltage support without any PCB rework.

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