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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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PIC16LF876A-I/SP - 8-Bit MCU, 14KB Flash, 28-SPDIP | Microchip
PIC16LF876A-I/SP

PIC16LF876A-I/SP - 8-Bit MCU, 14KB Flash, 28-SPDIP | Microchip

The Microchip Technology PIC16LF876A-I/SP is an 8-bit RISC flash microcontroller (MCU) with 14KB (8K x 14) of program memory and 368 bytes of RAM, packaged in a 28-pin SPDIP (0.300", 7.62mm) through-hole DIP. It runs at up to 10MHz internal clock (20MHz oscillator) from a 2.0V-5.5V supply and provides 22 digital I/O pins plus integrated peripherals including a 10-bit ADC (5 channels), 2 comparators, PWM modules, USART, MSSP (SPI/I2C), and a 256-byte EEPROM data memory. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, working RAM, and peripheral interfaces. The PIC16LF876A-I/SP belongs to Microchip's PIC16 family of mid-range 8-bit MCUs, which sit within the broader taxonomy of PIC microcontrollers -> 8-bit microcontrollers -> microcontrollers -> embedded processors -> semiconductors. The "LF" prefix denotes the low-voltage variant (2.0V min VDD vs 4.5V for the standard F part), making it suitable for battery-powered and 3.3V designs. Key features include 200 ns instruction execution across 35 single-word instructions, brown-out reset (BOR), power-on reset (POR), watchdog timer (WDT), in-circuit serial programming (ICSP), and an in-circuit debugger (ICD) interface. The MSSP peripheral supports both SPI master/slave and I2C master/slave modes, while the enhanced USART enables RS-232/RS-485 links. The capture/compare/PWM (CCP) module supports one capture input, one compare output, and one PWM output. Architecturally, the PIC16LF876A uses a Harvard RISC core with separate program and data buses, 14-bit wide instructions, and a 2-stage pipeline. The 8-level deep hardware stack and 32-byte register file give it deterministic interrupt response, which is valuable in real-time control loops. Self-programming capability allows field firmware updates without removing the device from the board. Typical applications include industrial sensor interfaces, low-power data loggers, appliance control boards, automotive body electronics (non-safety), battery chargers, and small-scale motor control. The wide operating voltage range (2.0V-5.5V) and low power consumption make it a strong fit for portable and battery-backed systems. When designing with this MCU, allocate the ICSP pins (RB6/RB7) carefully - they are shared with digital I/O and must be accessible to a programming header. Use a 100 nF decoupling capacitor within 5 mm of VDD and consider a bulk capacitor on the MCLR/VPP line for stable in-circuit programming. The LF variant has tighter timing constraints above 4V and below 3V - consult the datasheet's oscillator and electrical characteristics tables when running at voltage extremes. This page synthesizes distributor pricing, drop-in alternatives within the PIC16LF876A family, and practical design notes not aggregated in the manufacturer datasheet alone.

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PIC16LF876AT-I/ML - 8-Bit 10MHz 14KB Flash MCU | Microchip
PIC16LF876AT-I/ML

PIC16LF876AT-I/ML - 8-Bit 10MHz 14KB Flash MCU | Microchip

The Microchip Technology PIC16LF876AT-I/ML is a low-power CMOS 8-bit Flash microcontroller from the PIC16F876A family, delivering 10 MIPS performance through a 20 MHz oscillator with 4x PLL disabled, housed in a 28-pin QFN (ML) 6x6 mm package with exposed pad. It integrates 14KB (8K x 14 words) of self-programmable Flash program memory, 368 bytes of SRAM, and 256 bytes of EEPROM data memory, all accessible through 22 general-purpose I/O lines. The "A" suffix marks the enhanced Flash variant; the "T" band designates tape-and-reel packaging for high-volume SMT assembly. An 8-bit PIC microcontroller is a RISC (Reduced Instruction Set Computing) device built on Harvard architecture, where program and data buses are physically separate, allowing simultaneous instruction fetch and operand access. The PIC16F family belongs to Microchip's mid-range 8-bit MCU portfolio, sitting above the baseline PIC10/12/16 baseline cores and below the enhanced PIC18 and 16-bit dsPIC/PIC24 families. Mid-range PIC MCUs typically execute one instruction per clock cycle (4 clocks per instruction at the oscillator input), giving 5 MHz oscillator = 1.25 MIPS, 10 MHz = 2.5 MIPS, while this LF part supports up to 200 ns instruction execution at 20 MHz = 10 MIPS. Key features of the PIC16LF876AT-I/ML include a 10-channel 10-bit ADC, two 8-bit timers plus one 16-bit timer, a USART with addressable TX/RX, a Master Synchronous Serial Port (MSSP) supporting both SPI and I2C master/slave modes, two capture/compare/PWM (CCP) modules, an 8-bit parallel slave port, and a 256-byte EEPROM with 1M erase/write cycles endurance. The "LF" prefix designates the wide-voltage low-power variant operating from 2.0 V to 5.5 V, making it compatible with both 3.3 V and 5 V rails. The 28-QFN package is ideal for space-constrained designs and benefits from the exposed thermal pad for improved heat dissipation at full 10 MHz operation. Typical applications span industrial automation sensor interfaces, low-power battery-driven remote controls, automotive body electronics subsystems (non-safety), white-goods control boards, HVAC thermostats, and small appliances. The 10-bit ADC and CCP/PWM peripherals make it well suited for closed-loop motor control, LED dimming, and analog sensor conditioning. When designing with this device, ensure the exposed pad (pin 28 EPAD) is soldered to a properly grounded copper pour; failure to do so risks exceeding the package's thermal budget at high toggling rates.

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PIC16LF876AT-I/SO - 8-bit 10MHz 14KB Flash MCU 28-SOIC | Microchip
PIC16LF876AT-I/SO

PIC16LF876AT-I/SO - 8-bit 10MHz 14KB Flash MCU 28-SOIC | Microchip

The Microchip Technology PIC16LF876AT-I/SO is a low-power 8-bit PIC microcontroller based on the mid-range 14-bit RISC architecture, operating at up to 10 MHz instruction rate and packaged in a 28-pin SOIC (SO) wide-body IC. It integrates 14 KB (8K x 14 words) of Flash program memory, 368 bytes of RAM, 256 bytes of EEPROM data memory, 22 digital I/O pins, and a 10-bit multi-channel Analog-to-Digital Converter, making it a strong fit for low-power embedded control. A PIC microcontroller (MCU) is a self-contained single-chip computer built around a CPU, program memory, data memory, and on-chip peripherals. The PIC16 family uses Microchip's enhanced mid-range 14-bit instruction set, which provides only 35 single-word instructions yet delivers 200 ns instruction execution time at 20 MHz. Within the broader taxonomy, the PIC16F876A belongs to the 8-bit microcontroller class -> RISC microcontroller -> embedded microcontroller -> integrated circuit. The "LF" prefix indicates a wide-voltage part supporting 2.0V to 5.5V operation, while the "A" suffix marks the silicon revision that adds self-programmability, an ICD debug port, two analog comparators, two Capture/Compare/PWM modules, and a USART/SCI port configurable as 3-wire SPI or I2C. Key features include five 10-bit ADC channels, two comparators, two CCP modules, one USART, one MSSP (SPI/I2C), 256 bytes of EEPROM, an in-circuit debugger (ICD), Flash self-programming, and wide operating voltage from 2.0V to 5.5V. The instruction set is upward compatible with all PIC16 mid-range parts, so code migrates cleanly to PIC16F873A/874A/877A variants with more memory. The "T" suffix indicates tape-and-reel packaging for high-volume assembly. Technically, the PIC16LF876A combines Harvard architecture (separate program and data buses) with a powerful 14-bit instruction word that improves code density over 8-bit CISC cores. The 368-byte RAM supports a hardware stack 8 levels deep, and the Flash program memory is rated for 100K erase/write cycles. The peripheral set targets embedded sensing and control: five ADC channels cover most analog sensor interfaces, while the MSSP and USART handle asynchronous serial, SPI, and I2C communication with on-chip EEPROM for parameter storage. Typical applications include industrial sensor interface boards, battery-powered handheld instruments, automotive body controllers, low-cost HVAC thermostats, and consumer appliance controllers. The wide 2.0V-5.5V range also makes the LF version attractive for 2-cell battery or 3.3V regulated rails. Use the "A" revision whenever self-programming or in-circuit debug is required; use the original PIC16F876 only when migrating legacy firmware that does not need self-programming. When designing with the PIC16LF876A, ensure MCLR is tied to VDD through a 10kΩ resistor, decoupling caps are placed within 1 cm of VDD/VSS, and the ICSP/ICD pins are reserved for programming header access. The 28-SOIC wide-body package (0.295 inch, 7.50 mm) eases hand-soldering and rework compared to SSOP/QFN packages. This page synthesizes drop-in alternatives, lifecycle signals, and design notes not found in the manufacturer datasheet.

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PIC16LF876T-04/SO - 8-bit MCU, 14KB Flash, 4MHz, SOIC-28 | Microchip
PIC16LF876T-04/SO

PIC16LF876T-04/SO - 8-bit MCU, 14KB Flash, 4MHz, SOIC-28 | Microchip

The Microchip PIC16LF876T-04/SO is an 8-bit RISC microcontroller featuring 14KB (8K x 14) of FLASH program memory, 368 bytes of RAM, and 256 bytes of EEPROM, housed in a 28-pin SOIC wide-body package. Operating from 2.0V to 5.5V with a maximum clock speed of 4 MHz (200 ns instruction execution), the LF variant delivers low-power CMOS performance for battery-aware and industrial designs. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (Flash, RAM, EEPROM), and programmable I/O peripherals. Within the broader taxonomy, the PIC16LF876 belongs to the 8-bit microcontroller family -> RISC microcontroller class -> CMOS FLASH-based MCU -> embedded controller. It is upwards compatible with the PIC16C5X, PIC12CXXX, and PIC16C7X device families, simplifying legacy code migration. The "LF" suffix denotes the low-voltage (F-series) process variant optimized for 2.0V-5.5V operation. Key features include 22 digital I/O pins, 5 channels of 10-bit ADC, two 8-bit and one 16-bit timer/counter, a USART for asynchronous serial communication, an MSSP module supporting SPI and I2C (master/slave), and a 5-channel PWM. The CMOS FLASH-based architecture enables in-circuit serial programming (ICSP) and 100,000 erase/write cycle endurance on program memory. The wide-bandgap CMOS process yields typical active current of approximately 2 mA at 4 MHz, 5V, with standby currents below 1 uA. The PIC16LF876 employs a Harvard architecture with separate program and data buses plus a 14-bit wide instruction word, allowing most instructions to execute in a single cycle. This RISC instruction set comprises only 35 single-word instructions, accelerating firmware development and code density relative to CISC MCUs. Typical applications include industrial control panels, sensor signal conditioning, low-power remote sensor nodes, HVAC thermostat controllers, automotive body electronics (non-safety), and consumer appliance control. The 28-pin SOIC footprint simplifies hand prototyping and rework, while the in-circuit debug capability accelerates firmware iteration cycles. When designing with this device, ensure the ICSP programming pins (RB6, RB7) are accessible on the PCB for field updates. The configuration bits (fuses) must be set correctly to enable the internal oscillator or external crystal mode; an unset config word leaves the device in an undefined clock state that can prevent normal operation. This page synthesizes distributor pricing, drop-in SOIC-28 alternatives, and design notes from the Microchip PIC16F876/876A datasheet family not found on a single manufacturer page.

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PIC16LF877-04/L - 8-Bit 4MHz PIC MCU 14KB Flash 44-PLCC | Microchip
PIC16LF877-04/L

PIC16LF877-04/L - 8-Bit 4MHz PIC MCU 14KB Flash 44-PLCC | Microchip

The Microchip Technology PIC16LF877-04/L is an 8-bit RISC-based CMOS flash microcontroller (MCU) running at 4 MHz with 14 KB of program memory (8K x 14 words) and 368 bytes of RAM, housed in a 44-pin PLCC (16.59 x 16.59 mm) package. It operates from 2.0 V to 5.5 V, offers 33 digital I/O lines, integrates a 10-bit ADC, and supports 200 ns instruction execution. An MCU (microcontroller unit) is a single-chip computer that integrates a CPU core, non-volatile program memory, working RAM, and a rich set of peripherals (ADC, timers, communication ports, I/O) into one IC. The PIC16F family is Microchip's mid-range 8-bit line, sitting between the baseline PIC10/12/16 families and the enhanced PIC18 family in the broader microcontroller hierarchy: MCU -> 8-bit MCU -> PIC mid-range -> PIC16F. PIC16LF variants use a "low-power (LF)" process that supports operation down to 2.0 V. Key features include 35 single-word instructions, an internal oscillator option, two 8-bit and one 16-bit timers, a Watchdog Timer with its own on-chip RC oscillator, 14 interrupt sources, USART, MSSP (SPI/I2C), and capture/compare/PWM modules. The 44-PLCC package supports through-hole or socketed mounting, easing prototyping and field replacement, while the industrial operating range of 0C to +70C suits commercial and light-industrial enclosures. Typical applications include sensor signal conditioning with on-chip ADC, simple motor control via PWM, embedded control panels with USART-managed LCDs, and battery-powered instrumentation where the LF 2.0 V minimum extends runtime. The device also supports in-circuit serial programming (ICSP) for field updates. Designers should note the 04 speed grade denotes 4 MHz; for higher throughput the -10 (10 MHz) or -20 (20 MHz) variants are recommended. Code compatibility across the PIC16F87x family allows migration to the PIC16F887, which Microchip recommends for new designs. This page consolidates distributor pricing, pin-compatible PIC16LF877 family alternatives, and design notes not found in the manufacturer datasheet alone, giving engineers a single source for sourcing, substitution, and board bring-up decisions.

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PIC16LF877-04/P - 8-Bit 4MHz MCU 14KB Flash 40-PDIP | Microchip
PIC16LF877-04/P

PIC16LF877-04/P - 8-Bit 4MHz MCU 14KB Flash 40-PDIP | Microchip

The Microchip Technology PIC16LF877-04/P is an 8-bit CMOS Flash-based RISC microcontroller running at up to 4 MHz instruction rate, packaged in a 40-pin PDIP through-hole footprint. It integrates 14 KB of Flash program memory (8K x 14 words), 368 bytes of SRAM, 256 bytes of EEPROM, and 33 digital I/O pins. The wide operating voltage range of 2.0 V to 5.5 V makes it suitable for battery-powered and 5 V logic systems. Peripherals include a 10-bit ADC, two 8-bit and one 16-bit timers, capture/compare/PWM modules, USART, MSSP (SPI/I2C), and PSP. An 8-bit microcontroller is a single-chip computer whose arithmetic logic unit, registers, and data bus all operate on 8-bit words; the PIC16 family from Microchip uses a Harvard RISC architecture with separate program and data buses, 35 single-word instructions, and a two-stage pipeline that completes most instructions in four clock cycles. The 'LF' variant specifies an extended low-voltage process (down to 2.0 V), the '04' suffix denotes the 4 MHz speed grade, and the 'P' package code identifies the 40-pin PDIP. This family occupies the 'mid-range' tier of Microchip's 8-bit portfolio, sitting above the PIC12 baseline and below the PIC18 enhanced family. Key differentiating features include the nanoWatt power management modes (sleep, idle, and on-the-fly oscillator switching) and the ICD (In-Circuit Debugger) interface that lets developers use MPLAB tools for non-intrusive debugging. The integrated 10-bit successive-approximation ADC provides 8 input channels with conversion rates suitable for sensor monitoring. Hardware USART and MSSP peripherals support RS-232/RS-485 as well as SPI and I2C communications without bit-banging, freeing CPU cycles for application logic. The PIC16LF877 uses a Flash-based Harvard core with 14-bit instruction words, a hardware multiplier, and a 200 ns instruction execution time at 20 MHz operation. Memory protection is provided by a configurable code-protect fuse on the Flash program memory. The device supports in-circuit serial programming (ICSP) through two dedicated pins (RB6/RB7), enabling firmware updates after PCB assembly without removing the device from the board. Typical applications include industrial sensor conditioning, HVAC controllers, automotive body modules, educational microcontroller trainer boards, low-power remote sensor nodes, and embedded instrumentation that requires a legacy 5 V DIP interface. The 40-pin PDIP package is preferred for hobbyist, breadboard, and through-hole assembly designs where surface-mount is impractical. When designing with this device, plan oscillator configuration carefully: the internal RC oscillator is suitable for most low-cost applications but the crystal mode is recommended where precise baud-rate generation or timing-sensitive tasks are needed. The 33 I/O pins include pin-change interrupts and weak pull-ups that simplify direct switch-matrix interfacing. This page synthesizes distributor pricing, verified drop-in alternatives from the same Microchip PIC16 family, and practical design notes not found on any single manufacturer or distributor page.

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PIC16LF877-04/PT - 8-Bit 4MHz MCU 14KB Flash 44-TQFP | Microchip
PIC16LF877-04/PT

PIC16LF877-04/PT - 8-Bit 4MHz MCU 14KB Flash 44-TQFP | Microchip

The Microchip Technology PIC16LF877-04/PT is a low-voltage CMOS 8-bit Flash microcontroller in the PIC16F family, operating up to 4 MHz with 14 KB (8K x 14) of on-chip Flash program memory and 368 bytes of RAM, housed in a 44-pin TQFP (PT) package measuring 10x10 mm. The LF prefix denotes an extended low-voltage core designed for 2.0 V to 5.5 V operation, ideal for battery-powered and portable applications. According to the Microchip PIC16F877 datasheet, this device includes 256 bytes of EEPROM data memory, 33 digital I/O pins, and a rich peripheral set featuring a 10-bit 8-channel Analog-to-Digital Converter (ADC), two 8-bit and one 16-bit timers, a Capture/Compare/PWM (CCP) module, MSSP (I2C/SPI), USART, and PSP parallel slave port. Background: A microcontroller (MCU) is a single-chip computer containing a CPU core, non-volatile program memory, RAM, and integrated peripherals such as timers, ADC, and communication interfaces. The PIC16F family is one of Microchip's mid-range 8-bit architectures using a 14-bit instruction word and a RISC-style instruction set with only 35 single-word instructions, allowing most instructions to execute in a single instruction cycle (200 ns at 20 MHz, 1 us at 4 MHz). Within the broader hierarchy, the PIC16LF877 sits between 8-bit MCU -> 8-bit PIC mid-range -> PIC16F sub-family -> PIC16F877 peripheral-rich tier, and belongs to the semiconductor category of integrated circuits. Key features include the 10-bit 8-channel ADC with input multiplexing for multi-sensor sampling, a hardware USART supporting RS-232/RS-485 asynchronous and synchronous serial communication, a Master Synchronous Serial Port (MSSP) configurable for SPI or I2C master/slave operation, two PWM channels via the CCP module, and a Parallel Slave Port for external microprocessor bus expansion. The In-Circuit Serial Programming (ICSP) interface via RB6/RB7 enables in-system firmware updates without removing the MCU from the board. Typical applications include industrial control and instrumentation (sensor interfacing via the 8-channel ADC), consumer appliances (washing machines, microwave ovens using PWM motor control), automotive body electronics, low-power remote sensor nodes, and educational/legacy embedded designs where the 44-pin TQFP package and classic PIC16F877 peripheral set are required. The 2.0 V minimum supply voltage also makes it suitable for two-cell battery systems. When designing with this MCU, ensure adequate decoupling (100 nF ceramic plus 10 uF bulk) close to VDD/VSS pairs, reserve OSC1/OSC2 for the external crystal or resonator (or use the internal RC oscillator to save pins), and note that the 04 speed grade limits the clock to 4 MHz maximum - if higher throughput is required, choose the -10 or -20 speed grade variant instead. Watchdog Timer, Brown-out Reset, and Power-on Reset should be configured per Microchip application notes for robust operation.

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PIC16LF877-04I/L - 8-bit 4MHz MCU, 14KB Flash, 44-PLCC | Microchip
PIC16LF877-04I/L

PIC16LF877-04I/L - 8-bit 4MHz MCU, 14KB Flash, 44-PLCC | Microchip

The Microchip Technology PIC16LF877-04I/L is an 8-bit RISC microcontroller from the PIC16 family, featuring 14KB of Flash program memory, 368 bytes of RAM, and 33 digital I/O pins, housed in a 44-pin PLCC package (16.59x16.59 mm). It executes instructions at a 4 MHz clock rate with a 200 ns instruction cycle, drawing low operating current from a 2.5V/3.3V/5V supply, and is rated for the industrial temperature range of -40C to +85C. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (Flash for program code, RAM for data, EEPROM for non-volatile storage), and peripherals (timers, ADC, communication interfaces). Within the broader semiconductor taxonomy, an MCU is a subset of microprocessors that adds on-chip memory and I/O; the PIC16 family from Microchip is one of the industry's longest-running 8-bit MCU lines, prized for its deterministic architecture and low cost. The "LF" prefix denotes the low-voltage variant optimized for battery-powered and 3.3V systems, while the "F" indicates Flash-based (re)programmability in-circuit. Key differentiating features of the PIC16LF877-04I/L include 14KB (8K x 14) of self-programmable Flash, 256 bytes of EEPROM, a 10-bit ADC with up to 8 channels, two 8-bit and one 16-bit timers, a USART, MSSP (SPI/I2C), and PSP. Its Harvard RISC architecture with 35 single-word instructions enables compact, predictable code, and the integrated ICD (In-Circuit Debug) supports two-wire in-system programming and debugging. The "I" suffix in the part number indicates the industrial temperature grade, and the "L" denotes the PLCC package. Typical applications include industrial control and automation modules, sensor signal conditioning front-ends, low-power data loggers, HVAC controllers, automotive body electronics (non-safety), and consumer appliance interfaces. The wide peripheral set and proven toolchain (MPLAB X IDE, XC8 compiler, PICkit programmers) make it a workhorse for legacy and maintenance designs. When designing with the PIC16LF877-04I/L, ensure the PLCC socket or solder footprint matches the 44-pin J-lead land pattern, and add a 100 nF decoupling capacitor adjacent to each VDD/VSS pair. For brown-out-sensitive applications, enable the internal BOR module in the configuration bits and consider a watchdog timer for unattended operation. This page synthesizes distributor pricing, drop-in alternatives within the same 44-PLCC footprint, and practical design notes not found in the manufacturer datasheet, enabling engineers to evaluate second-source options and lifecycle status quickly.

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PIC16LF877-04I/P - 8-bit MCU, 14KB Flash, 4MHz, 40-PDIP | Microchip
PIC16LF877-04I/P

PIC16LF877-04I/P - 8-bit MCU, 14KB Flash, 4MHz, 40-PDIP | Microchip

The Microchip PIC16LF877-04I/P is an 8-bit RISC flash microcontroller based on the PIC16F architecture, operating at 4 MHz with 14 KB of on-chip flash program memory, 368 bytes of RAM, and 256 bytes of EEPROM. Housed in a 40-pin PDIP (Plastic DIP) through-hole package with industrial temperature grade (-40C to +85C), this low-voltage (LF) variant is optimized for 2.0V to 5.5V operation. The 04 speed designation indicates the 4 MHz maximum oscillator frequency, and the I suffix confirms the -40C to +85C industrial operating range. An 8-bit microcontroller (MCU) is a single-chip processor that integrates a CPU core, program memory, data memory, and programmable I/O peripherals. The PIC16F family, manufactured by Microchip Technology, uses a Harvard-architecture RISC core with 35 single-word instructions and a 14-bit instruction word, sitting in the product hierarchy as MCU -> 8-bit microcontroller -> embedded controller -> semiconductor IC. PIC MCUs are widely used in embedded systems for their deterministic instruction timing, low power consumption, and ease of programming via the ICSP (In-Circuit Serial Programming) interface. Key features include 33 digital I/O pins organized across multiple ports (PORTA-PORTE), an 8-channel 10-bit ADC, two 8-bit and one 16-bit timers, a USART module for serial communication, an MSSP module supporting SPI and I2C, and a parallel slave port for external memory expansion. The PIC16LF877-04I/P integrates a Watchdog Timer with its own on-chip RC oscillator for reliable operation, plus Brown-out Reset (BOR) circuitry to protect against low-voltage corruption of flash memory. The 40-pin PDIP footprint allows drop-in compatibility with standard 0.1-inch pitch through-hole prototyping and legacy board designs. The architecture implements a 14-bit instruction set with 200 ns instruction execution time at 4 MHz, making code timing fully deterministic and easy to predict. The 10-bit ADC supports up to 8 analog input channels with successive approximation conversion, while the MSSP peripheral handles both SPI master/slave and I2C master/slave protocols, enabling sensor interfacing and EEPROM/RTC communication. Capture/Compare/PWM modules support motor control, signal timing, and pulse-width modulation tasks. Typical applications include industrial control systems, sensor interface modules, HVAC controllers, motor drive BLDC and stepper interfaces, data acquisition devices, and educational platforms. Its wide voltage range and industrial temperature grade make it suitable for factory automation and instrumentation requiring robust operation. When designing with the PIC16LF877-04I/P, observe the maximum oscillator frequency limit of 4 MHz when using the LF (low-voltage) variant. Place a 0.1 uF decoupling capacitor close to VDD, and ensure the MCLR pin is pulled high through a 10 kohm resistor for normal operation. Programming is performed via ICSP using two pins (RB6/RB7) without removing the MCU from the board. This page synthesizes distributor pricing, drop-in package-compatible alternatives, parametric comparisons, and practical design notes not found in the standalone manufacturer datasheet, providing actionable engineering reference beyond raw spec repetition.

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PIC16LF877-04I/PQ - 8-Bit 4MHz MCU 14KB Flash 44-MQFP | Microchip
PIC16LF877-04I/PQ

PIC16LF877-04I/PQ - 8-Bit 4MHz MCU 14KB Flash 44-MQFP | Microchip

The Microchip Technology PIC16LF877-04I/PQ is an 8-bit RISC microcontroller from the PIC16 family featuring a PIC16 CPU core, 14KB (8K x 14) of FLASH program memory, 368 bytes of RAM, and 256 bytes of EEPROM data memory. It executes instructions at 4 MHz (200 ns instruction cycle) and is housed in a 44-pin MQFP (10x10 mm) surface-mount package with industrial temperature grade (-40C to +85C). A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (Flash/RAM/EEPROM), and peripherals (ADC, timers, communication interfaces) onto one die. The PIC16LF877 belongs to the mid-range PIC family, which sits between the baseline PIC10/12/16/17 families and the high-performance PIC18/PIC24/dsPIC families. The LF variant runs from a reduced-voltage rail (2.0-5.5V), making it a low-power derivative of the standard PIC16F877 aimed at battery-powered systems. Key features of this device include 33 digital I/O lines, 8 channels of 10-bit Analog-to-Digital Conversion (ADC), 2 analog comparators, a Capture/Compare/PWM (CCP) module plus an Enhanced CCP module, 3 timers, a USART with addressable SPI/I2C mode, and a parallel slave port. CMOS technology ensures low static and dynamic power consumption across the full industrial temperature range. Architecturally, the device uses a Harvard RISC core with separate program and data buses. Code executes in a single cycle (excluding branches), and the 35-instruction set is common across the PIC16 mid-range family, allowing code reuse across 6- to 100-pin variants. The LF voltage range (2.0-5.5V) lowers quiescent current versus the standard F variant (4.0-5.5V). Typical applications include industrial control panels, sensor data acquisition, low-power battery monitoring, motor control interfaces, and embedded instrumentation. The combination of 10-bit ADC, multiple timers, and PWM outputs allows direct drive of mixed-signal subsystems with minimal external components. When designing, note the 4 MHz maximum oscillator frequency at 2.0V supply (10 MHz at 5V). The "-04" speed suffix indicates the 4 MHz grade. Designers should verify timer and ADC clocking against VDD to avoid speed-related timing violations. This page synthesizes distributor pricing, drop-in same-brand and cross-brand alternatives, and practical design notes beyond the manufacturer datasheet summary. The MQFP-44 package and pinout match the PIC16F877 and PIC16F877A, enabling direct PCB layout reuse.

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PIC16LF877-04I/PT - 8-bit MCU 4MHz 14KB Flash 44-TQFP | Microchip
PIC16LF877-04I/PT

PIC16LF877-04I/PT - 8-bit MCU 4MHz 14KB Flash 44-TQFP | Microchip

The Microchip Technology PIC16LF877-04I/PT is an 8-bit RISC microcontroller from the PIC16F family, featuring a 4 MHz maximum operating frequency, 14 KB (8K x 14) of FLASH program memory, 368 bytes of SRAM, and 256 bytes of EEPROM data memory, all packaged in a 44-pin TQFP (10x10 mm) surface-mount form factor. As the "LF" variant, this part operates across a wide supply range of 2.0V to 5.5V, making it well-suited for both 3.3V and 5V systems, while the "-04" speed grade denotes the 4 MHz instruction execution oscillator limit and the "I" suffix indicates the -40C to +85C industrial temperature range. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, data memory, and peripheral interfaces onto one piece of silicon. Within the broader semiconductor taxonomy, the PIC16LF877 belongs to the 8-bit MCU class, which itself sits inside the embedded microcontroller category of integrated circuits. MCUs are the foundational building blocks of embedded systems, executing deterministic firmware that interfaces with sensors, actuators, communication PHYs, and human-machine interfaces. The PIC16F architecture is Microchip's mid-range 14-bit instruction set, balancing code density, ease of use, and cost, and has shipped in billions of units across automotive, industrial, and consumer applications. The PIC16LF877-04I/PT integrates a rich peripheral set: a 10-bit multi-channel analog-to-digital converter (ADC), a Capture/Compare/PWM (CCP) module, an enhanced CCP, two 8-bit and one 16-bit timers, a synchronous serial port configurable for SPI or I2C, a USART with 9-bit address support, a parallel slave port, and a PSP (Parallel Slave Port). It exposes 33 digital I/O pins across five ports (PORTA-PORTE) with individually programmable weak pull-ups and interrupt-on-change capability. An integrated brown-out detect (Brown-out Reset), power-on reset, watchdog timer with its own on-chip low-power RC oscillator, and in-circuit serial programming (ICSP) further reduce external component count and BOM cost. Architecturally, the PIC16LF877 employs a Harvard RISC core with a 14-bit program word and separate program/data buses, allowing simultaneous instruction fetch and operand access. The 35 single-word instruction set executes in one instruction cycle (200 ns at 20 MHz, or 1 us at 4 MHz for this -04 speed grade), delivering deterministic timing that simplifies real-time control loops. The 8-level deep hardware stack and 2K x 14 word FLASH enable substantial firmware size, while the dual-data-pointer C compiler-friendly architecture eases migration to higher-tier PIC18 or dsPIC devices. Typical applications for the PIC16LF877-04I/PT span industrial automation controllers, building automation sensor nodes, low-speed motor control (brushed DC, small steppers), white-goods user interfaces, simple sensor signal conditioning, RS-232/RS-485 protocol bridges, LED driving boards, and battery-powered remote data acquisition terminals. Its wide voltage range and industrial temperature grade make it equally comfortable in 5V legacy industrial systems and modern 3.3V mixed-signal designs. Designers should note that the -04 speed grade limits the external oscillator input and instruction throughput to 4 MHz; if higher throughput is required, the -20 (20 MHz) variants are drop-in compatible at the same TQFP-44 footprint. Also, the 33 I/O rating excludes any I/O used by the parallel slave port, ADC analog inputs, or external memory interface, so firmware pin allocation must be planned against actual electrical loads and the configured peripheral mix. This page consolidates distributor pricing, same-package drop-in upgrade paths, and engineering context beyond the bare datasheet, enabling faster PIC selection and substitution decisions.

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