Mikrocontroller

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PIC16F874A-E/PT - 8-bit MCU, 7KB Flash, 44-TQFP | Microchip
PIC16F874A-E/PT

PIC16F874A-E/PT - 8-bit MCU, 7KB Flash, 44-TQFP | Microchip

The Microchip Technology PIC16F874A-E/PT is an 8-bit CMOS FLASH-based microcontroller from the PIC16F family, delivering 20 MHz instruction execution (200 ns per instruction), 7 KB of Flash program memory (4K x 14 words), 192 bytes of RAM, and 128 bytes of EEPROM, housed in a 44-pin TQFP (PT) package. According to the Microchip product page, the device integrates 8 channels of 10-bit Analog-to-Digital conversion, 2 analog comparators, 2 capture/compare/PWM modules, and a synchronous serial port configurable as either 3-wire SPI or 2-wire I2C. A PIC microcontroller is a RISC-based 8-bit (or 16/32-bit) microcontroller family built around Harvard architecture, widely adopted in embedded designs for its deterministic instruction timing, low cost, and rich peripheral integration. The PIC16F sub-family sits between the baseline PIC10/12/16 and the high-performance PIC18/PIC24 families, offering self-programmability, hardware USART, and EEPROM data memory - a common architecture choice for industrial control, consumer appliances, and legacy communications equipment. Key features of the PIC16F874A include a 14-bit instruction word, 35 single-word instructions, ICD (In-Circuit Debug) support, and a brown-out detect circuit. The 10-bit ADC with 8 input channels makes the part suitable for sensor-conditioning applications, while two analog comparators enable feedback control loops without external op-amps. The 25 mA source/sink per I/O pin is unusually strong for an MCU, allowing direct LED or small-relay drive without buffering transistors. The architecture separates program and data buses (Harvard), and the 20 MHz oscillator (8-bit) drives an internal 4-phase clock with 200 ns instruction execution. A 14-bit program counter reaches up to 8K words of Flash; the device boots into user mode and supports self-programming through a dedicated routine. The enhanced PIC16F874A silicon incorporates nanoWatt technology options that gate unused peripherals to lower quiescent current, an important consideration for battery-backed designs. Typical applications include industrial sensor conditioning, HVAC control boards, security alarm panels, automotive body electronics (non-safety), small appliances, and educational embedded platforms where the PIC16F877A and PIC16F874A are interchangeable via the same datasheet family. The PIC16F874A variant without the suffix-A is functionally compatible but lacks the nanoWatt improvements. When designing with this MCU, ensure the in-circuit serial programming (ICSP) pins are accessible on the PCB for firmware updates. The 44-pin TQFP footprint provides access to all 33 I/O pins and the full peripheral set; pair it with a regulated 5 V rail and a decoupling capacitor on each VDD/VSS pair per the datasheet layout guidelines. The PIC16F874A datasheet family documents both 40-pin DIP and 44-pin TQFP variants; the PIC16F874A-E/PT temperature grade (-40C to +125C) supports extended industrial environments.

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PIC16F874A-I/L - 8-Bit 20MHz MCU 7KB Flash PLCC-44 | Microchip
PIC16F874A-I/L

PIC16F874A-I/L - 8-Bit 20MHz MCU 7KB Flash PLCC-44 | Microchip

The Microchip Technology PIC16F874A-I/L is an 8-bit CMOS Flash microcontroller from the PIC16 mid-range family, running at up to 20 MHz instruction rate and housed in a 44-pin PLCC (Plastic Leaded Chip Carrier) package. The device integrates 7 KB (4K x 14) of self-programmable Flash program memory, 192 bytes of SRAM, and 128 bytes of EEPROM data memory, providing a balanced on-chip memory mix for embedded control firmware. A microcontroller (MCU) is a single-chip computer that contains a processor core, program memory, working RAM, and a rich set of peripherals including timers, communication interfaces, and analog blocks. PIC16F-series microcontrollers sit inside the broader taxonomy: 8-bit microcontroller -> RISC microcontroller -> CMOS microcontroller -> embedded MCU -> semiconductor IC. They are widely used because of their deterministic instruction timing, low power draw, and broad toolchain support (MPLAB X IDE, XC8 compiler, PICkit programmers). Key features of the PIC16F874A include 33 digital I/O pins arranged across five ports, an 8-channel 10-bit Analog-to-Digital Converter (ADC), two analog comparators, two Capture/Compare/PWM (CCP) modules, and a synchronous serial port that can be configured as either 3-wire SPI or 2-wire I²C. The device also offers in-circuit debugging (ICD) support and self-programming capability, enabling in-application firmware upgrades without an external programmer. The PIC16F874A uses Microchip's enhanced Harvard RISC architecture with only 35 single-word instructions, most of which execute in a single 200 ns instruction cycle at 20 MHz. A hardware multiplier is not present on this part, so multiply-heavy DSP routines must be implemented in software. The wide operating voltage range of 2.0 V to 5.5 V and four oscillator modes (RC, XT, HS, LP) make the part flexible across battery and line-powered designs. Typical applications for the PIC16F874A-I/L include industrial automation controllers, HVAC system nodes, sensor interface boards, motor control front-ends, building automation, low-cost consumer appliances, and educational development platforms. Its combination of EEPROM, ADC, and dual serial interfaces supports applications that need local data logging alongside periodic reporting to a host. When designing with this part, plan I/O assignments carefully because Port A shares pins with the analog inputs and the analog comparator outputs. Always configure the relevant TRIS registers and ADCON1 analog/digital mode bits before reading analog channels; otherwise digital logic on shared pins can cause incorrect ADC conversions. Decouple VDD with at least a 0.1 µF ceramic capacitor placed within 5 mm of the supply pin. This page synthesizes distributor pricing, drop-in compatible alternatives, and practical design notes not found in the manufacturer datasheet, helping procurement engineers and firmware developers quickly evaluate the PIC16F874A-I/L for both new designs and legacy product maintenance.

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PIC16F874A-I/ML - 8-bit PIC MCU, 7KB Flash, 44-pin QFN | Microchip
PIC16F874A-I/ML

PIC16F874A-I/ML - 8-bit PIC MCU, 7KB Flash, 44-pin QFN | Microchip

The Microchip PIC16F874A-I/ML is a CMOS Flash-based 8-bit PIC microcontroller in a 44-pin QFN package delivering 200 ns instruction execution, 7 KB of Flash program memory, 192 bytes of RAM, and 128 bytes of EEPROM data memory. It provides 33 digital I/O lines, an 8-channel 10-bit Analog-to-Digital converter, two analog comparators, two Capture/Compare/PWM modules, a USART, and a Synchronous Serial Port configurable as either 3-wire SPI or 2-wire I2C. The device operates from 2.0V to 5.5V across the -40C to +85C industrial temperature range and includes In-Circuit Debugging (ICD) plus self-programming support. An 8-bit PIC microcontroller is a RISC-based computing core on a chip, integrating a CPU, non-volatile program memory, volatile data memory, peripherals, and I/O on a single die. Within the broader semiconductor taxonomy, PIC MCUs belong to the microcontroller family, which sits under the wider category of embedded computing devices and ultimately under integrated circuits. PIC16 series parts are Microchip's mid-range 8-bit line, providing a balance of code density, peripheral integration, and low cost that suits legacy and industrial designs. The PIC16F874A-I/ML uses an enhanced Harvard architecture with separate program and data buses, allowing instruction fetch and operand access to occur simultaneously. Its 35 single-word instruction set simplifies coding in compilers such as XC8, while the 10-bit ADC and dual comparators ease mixed-signal front-end design. Brown-out Reset, Power-on Reset, and a watchdog timer with its own on-chip RC oscillator improve field reliability. Typical applications include industrial control panels, motor control boards, automotive body electronics, sensor interfaces, instrumentation, and consumer appliances. The wide operating voltage range and on-chip peripherals also make the part attractive for battery-powered metering and HVAC controller boards. Compared to newer PIC18 devices, the PIC16F874A offers a familiar register model that simplifies porting of mature firmware. When designing with this device, verify that the chosen development toolchain (MPLAB X IDE with XC8 compiler or legacy Hi-Tech PICC) supports the -I/ML temperature grade and QFN-44 footprint. Designers migrating from older PIC16F87x parts should review the A/D channel mapping and SSP module behavior, which were revised on the 874A/877A silicon compared to the original 874/877.

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PIC16F874AT-E/PT - 20MHz 8-Bit MCU 7KB FLASH 44-TQFP | Microchip
PIC16F874AT-E/PT

PIC16F874AT-E/PT - 20MHz 8-Bit MCU 7KB FLASH 44-TQFP | Microchip

The Microchip Technology PIC16F874AT-E/PT is an 8-bit RISC Flash microcontroller running at up to 20 MHz instruction rate, integrating 7 KB (4K x 14) of program Flash, 192 bytes of RAM, and 128 bytes of EEPROM data memory in a 44-pin TQFP (10x10 mm) industrial-grade -40C to +125C package. The "T" suffix denotes Tape & Reel packaging, and the "E" suffix denotes the Extended industrial temperature grade. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, RAM, peripherals, and I/O into one package. PIC microcontrollers use a Harvard RISC architecture with 35 single-word instructions, which gives them deterministic instruction timing and very low power consumption per MIPS. The PIC16F874A family sits between the smaller PIC16F87x (28-pin) and the larger PIC16F877A (40/44-pin with more I/O) - it offers the same peripheral set as the '877A but with reduced pin count, making it the right choice when 33 I/O are sufficient and 40-pin parts are over-budget. Key features include 33 digital I/O lines, 5 channels of 10-bit ADC (up to 8 channels on the '877A), 2 analog comparators, a USART, an MSSP (SPI / I2C master-slave), 2 capture/compare/PWM modules, 2 8-bit timers plus 1 16-bit timer, an ICD (In-Circuit Debug) port, and self-programming. The enhanced PIC16F874A core adds a hardware multiplier and 14-bit instruction word, doubling arithmetic density over the original PIC16C7X. A 200 ns instruction execution time at 20 MHz provides real-time interrupt latency suitable for motor, power-conversion, and sensor feedback loops. Typical applications include industrial control boards, automotive body and chassis ECUs, consumer white goods (washing machines, dishwashers, microwave ovens), HVAC thermostats, sensor-conditioning front ends, and any legacy embedded design that must remain sourceable for the next 5-10 years thanks to Microchip's Enhanced Flash program memory. The wide 2.0 V to 5.5 V operating range allows direct battery or 5 V regulator supplies. For design in, populate the ICSP/ICD pins (RB6/RB7, MCLR) on every board even if you do not plan to debug in-circuit - you can recover bricked parts in production. The 44-TQFP uses Microchip's standard pinout shared with PIC16F877A-I/PT and PIC18F452-I/PT, enabling a single PCB layout to accept multiple MCU families. This page synthesizes distributor stock, NRND lifecycle status, drop-in alternatives, and practical design notes not found on the manufacturer datasheet, distilled for the working engineer.

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PIC16F874AT-I/L - 8-bit 20MHz PIC MCU, 7KB Flash, 44-PLCC | Microchip
PIC16F874AT-I/L

PIC16F874AT-I/L - 8-bit 20MHz PIC MCU, 7KB Flash, 44-PLCC | Microchip

The Microchip Technology PIC16F874AT-I/L is an 8-bit RISC Flash microcontroller from the PIC16F family, executing one instruction per clock cycle at up to 20 MHz (200 ns instruction cycle). The device integrates 7 KB (4K x 14 words) of Flash program memory, 192 bytes of data SRAM, and 128 bytes of EEPROM, packaged in a 44-pin PLCC (16.59 x 16.59 mm) and supplied in Tape & Reel (T/R) format. A microcontroller (MCU) is a single-chip computer containing a CPU core, program and data memory, I/O peripherals, and timers on a single silicon die. The 8-bit PIC16 architecture sits in the wider hierarchy: microcontroller -> embedded processor -> semiconductor device. The PIC16F874A family specifically targets mid-range embedded applications that require more I/O and analog integration than the PIC16F873A/876A, while remaining code-compatible with the smaller PIC16C7X legacy family. Key features include 33 digital I/O pins, a 10-bit Analog-to-Digital Converter with up to 8 input channels, two 8-bit and one 16-bit timers, two analog comparators, a Parallel Slave Port (PSP), and a USART, MSSP (I2C/SPI) communication block. Brown-out Reset (BOR), Power-on Reset (POR), Watchdog Timer (WDT) with on-chip RC oscillator, and In-Circuit Serial Programming (ICSP) provide robust field deployment. The device operates across the industrial -40C to +85C range. The PIC16F874A core is a Harvard-architecture RISC processor with 35 single-word instructions, a hardware multiplier, and 14-bit wide instruction words. Compared with the earlier PIC16C7X OTP parts, the 16F874A replaces EPROM with Flash, enabling in-application self-programming and ICD debugging without an emulator. The 33 I/O lines and PSP allow direct connection to external parallel buses, making the device attractive for legacy industrial control panels. Typical applications include industrial automation and PLC I/O modules, automotive body electronics (non-safety), consumer appliance control panels, sensor-conditioning front-ends, and small home-appliance controllers. The wide 2.0V to 5.5V VDD range supports both 3.3V and 5V designs. When designing with this MCU, allocate one decoupling capacitor (100 nF ceramic) per power pin placed within 5 mm of the IC, and a bulk 10 uF tantalum on the main VDD rail. Note that the device is in the mature PIC16F legacy family; for new high-volume designs consider the pin-compatible PIC16F877A-I/L which doubles program memory to 14 KB and RAM to 368 bytes. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC16F874AT-I/ML - 8-Bit 20MHz 7KB Flash MCU 44-QFN | Microchip
PIC16F874AT-I/ML

PIC16F874AT-I/ML - 8-Bit 20MHz 7KB Flash MCU 44-QFN | Microchip

The Microchip PIC16F874AT-I/ML is an 8-bit RISC microcontroller from the PIC16F874A family featuring 7KB of Flash program memory, 192 bytes of RAM, and 256 bytes of EEPROM, housed in a 44-pin QFN (ML) package. It operates at up to 20MHz instruction clock, delivers 5 MIPS throughput, and supports an industrial temperature range of -40C to +85C. What is a PIC16F microcontroller? The PIC16F family is Microchip's mid-range 8-bit RISC microcontroller line based on the Harvard architecture with separate program and data buses, a small instruction set (approximately 35 instructions), and integrated Flash program memory. In the system hierarchy, it sits between the smaller PIC10/PIC12 baseline series and the higher-pin-count PIC18 series. PIC16F874A parts include a 10-bit ADC, USART, MSSP (SPI/I2C), and parallel port peripherals - features that established the family as a workhorse for industrial control in the early 2000s. Key features include 14 interrupt sources, a 10-bit 8-channel Analog-to-Digital Converter, two 8-bit timers plus one 16-bit timer, and a USART with RS-485 support. The 44-QFN package provides compact footprint with exposed thermal pad, suitable for space-constrained designs. The /ML suffix designates the QFN package and -I suffix designates industrial temperature grade. The PIC16F874AT-I/ML uses a 14-bit instruction word and modified Harvard architecture with separate code and data paths, enabling single-cycle instruction execution except for program branches. The integrated 10-bit ADC uses successive approximation and supports 8 input channels multiplexed from the 33 I/O pins. The MSSP peripheral implements both SPI and I2C master/slave modes, while the enhanced USART supports RS-232, RS-485, and LIN protocols. Typical applications include industrial control systems, HVAC controls, motor control interfaces, sensor signal conditioning, smart sensor nodes, and embedded instrumentation. The wide peripheral mix and 33 GPIO make it well-suited to bridge between analog sensors and human-machine interfaces in industrial equipment. When designing with the PIC16F874AT-I/ML, ensure the supply voltage is decoupled with at minimum 0.1uF ceramic capacitors adjacent to each VDD pin and a bulk 10uF electrolytic on the board. The QFN package requires careful PCB thermal pad soldering - a star-ground pattern from the exposed pad improves thermal dissipation and reduces ground bounce on the analog inputs. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing information gain beyond what is available on typical distributor listing pages.

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PIC16F874AT-I/PT - 8-bit 20MHz MCU 7KB Flash 44-TQFP | Microchip
PIC16F874AT-I/PT

PIC16F874AT-I/PT - 8-bit 20MHz MCU 7KB Flash 44-TQFP | Microchip

The Microchip Technology PIC16F874AT-I/PT is an 8-bit RISC PIC16 microcontroller IC running at 20 MHz, integrating 7 KB (4K x 14 words) of FLASH program memory, 192 bytes of SRAM, and 128 bytes of EEPROM data memory in a 44-pin TQFP (10x10 mm) package. It supports up to 33 digital I/O lines and offers on-chip peripherals including a 10-bit ADC, two 8-bit and one 16-bit timers, two analog comparators, an MSSP module for I2C/SPI, and a USART for asynchronous or synchronous serial communication. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path and a RISC instruction set; in the broader taxonomy it sits between 4-bit legacy controllers and 16/32-bit MCUs, and is typically classified as an embedded microcontroller, RISC MCU, CMOS FLASH-based MCU, and within Microchip's product hierarchy as a PIC16 mid-range family device. PIC16F87X devices use a 14-bit instruction word and 35 single-word instructions, with most instructions executing in a single 200 ns instruction cycle at 20 MHz, giving roughly 5 MIPS of throughput. Key features distinguishing this part include self-programmability (allowing in-application FLASH updates), an ICD (In-Circuit Debug) interface, two on-chip analog comparators with programmable reference, a 10-bit ADC with up to 8 channels, 100K endurance FLASH, 1M endurance EEPROM, and a wide 2.0 V to 5.5 V operating voltage range (the 'F' family runs up to 5.5 V). The PIC16F874A family is upwards source-code compatible with PIC16C5X, PIC12CXXX, and PIC16C7X devices, simplifying migration from legacy designs. Typical applications include industrial control panels, sensor signal conditioning nodes, low-power consumer devices, motor control front-ends, and battery-backed instruments where the integrated EEPROM, ADC, comparators, and serial peripherals reduce external component count. The wide operating range and on-chip debug also make it a strong fit for prototyping platforms and educational development kits. When designing with this MCU, ensure decoupling is placed close to VDD/AVDD/VSS/AVSS, use the MSSP and USART pins according to the 44-pin TQFP pinout, and review the migration note: Microchip recommends the newer PIC16F18875 for new designs. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on a single manufacturer datasheet page.

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PIC16F874T-04/L - 4MHz 8-Bit Flash MCU 7KB | Microchip
PIC16F874T-04/L

PIC16F874T-04/L - 4MHz 8-Bit Flash MCU 7KB | Microchip

The Microchip Technology PIC16F874T-04/L is an 8-bit PIC microcontroller based on the powerful RISC architecture, featuring 7KB (4K x 14) of Flash program memory and 192 bytes of RAM in a 44-pin PLCC package with J-leads. The device operates at a clock speed of 4 MHz, delivering 200 ns instruction execution across 35 single-word instructions, and runs from a 4V to 5.5V supply rail. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, RAM, and peripherals on one silicon die. The PIC16F family sits within the broader hierarchy of 8-bit MCU -> RISC microcontroller -> embedded controller -> semiconductor IC. Microcontrollers like the PIC16F874T-04/L are designed for deterministic real-time control tasks where predictable instruction timing and low cost outweigh raw throughput. Key features include 33 digital I/O pins, an integrated ADC, capture/compare/PWM modules, USART, SPI, and I2C peripherals, plus Flash program memory that supports in-circuit serial programming. The 'T' suffix in the part number indicates tape-and-reel packaging for high-volume surface-mount assembly, while the '04' denotes the 4 MHz maximum clock speed and 'L' designates the 44-pin PLCC form factor. The architecture is built on a modified Harvard design with separate program and data buses, allowing instruction fetch and data access in a single cycle. This RISC-based core gives the PIC16F874T-04/L a favorable code-density-to-performance ratio that has made the PIC16F family a long-standing workhorse for industrial, consumer, and automotive embedded designs. Typical applications include industrial control systems, motor control, sensor interfacing, embedded data acquisition, and legacy replacement of older 8051 or PIC16C designs. Engineers also use the PIC16F874T-04/L as a low-cost companion controller in mixed-signal systems where a higher-end MCU is overkill. When designing with this device, note that the 44-pin PLCC package is socket-friendly, which simplifies prototyping and field replacement. Ensure your programmer supports the ICSP interface and that decoupling capacitors are placed close to VDD pins to maintain ADC accuracy. This page synthesizes distributor pricing, drop-in PIC16F family alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC16F874T-04E/L - 8-Bit PIC MCU, 4MHz, 7KB Flash, 44-PLCC | Microchip
PIC16F874T-04E/L

PIC16F874T-04E/L - 8-Bit PIC MCU, 4MHz, 7KB Flash, 44-PLCC | Microchip

The Microchip Technology PIC16F874T-04E/L is an 8-bit PIC16F-series RISC microcontroller operating at 4MHz, delivering 7KB (4K x 14) of Flash program memory, 192 bytes of SRAM, and 128 bytes of EEPROM, integrated in a 44-pin PLCC (Plastic Leaded Chip Carrier) package. Built on Microchip's Enhanced PIC16 core with nanoWatt Technology, the device executes a 200 ns instruction cycle from a 4 MHz oscillator input and supports a 20 MHz maximum clock using the `-04` speed grade, while the `E` suffix designates the extended industrial temperature range of -40 °C to +125 °C. The `T` suffix indicates tape-and-reel packaging, and the `/L` package code specifies the leaded 44-PLCC chassis. What is a PIC16F microcontroller? A PIC16F MCU is a member of Microchip's 8-bit PIC (Peripheral Interface Controller) family — a CMOS, RISC-based microcontroller architecture widely adopted in embedded control for its low cost, deterministic instruction set (only 35 single-word instructions in this family), and rich on-chip peripherals including timers, ADC, PWM, and serial communication. PIC16F sits within the broader class of microcontrollers (MCU -> 8-bit MCU -> RISC MCU -> CMOS MCU), and within Microchip's taxonomy under PIC16 mid-range MCUs, the upgraded successor lineage being PIC16F88X (the manufacturer-recommended modern replacement for this part is the PIC16F884). Key differentiating features of the PIC16F874T-04E/L include 16 digital I/O pins multiplexed across two ports, an integrated 10-bit multi-channel ADC, a USART (RS-232/RS-485), an MSSP peripheral supporting both SPI and I2C (master/slave), two 8-bit timers plus one 16-bit timer, and a programmable watchdog timer for fault recovery. The CMOS Flash cell technology enables in-circuit serial programming (ICSP) using only two pins, making field firmware updates straightforward. Architecturally, the device relies on a Harvard architecture with separate program and data buses, eliminating the need for a unified memory map. The Flash program memory is endurable to 100,000 erase/write cycles and retains data for more than 40 years, supporting automotive-grade reliability for in-cabin control units. Typical applications include industrial motor control, automotive body electronics, sensor signal conditioning, and consumer appliances. This part is particularly well suited to upgrading legacy 16C/17C designs where a low-cost, drop-in Flash-based replacement is required. When designing the PCB, place decoupling capacitors (typically 100 nF in parallel with 10 µF tantalum) within 4 mm of VDD/VDDCORE pins; route the 4 MHz crystal or ceramic resonator traces as short as possible and guard them with a ground ring to avoid injecting noise into analog ADC channels. This page synthesizes multi-distributor pricing, genuine drop-in PIC16 family alternatives from Microchip, and practical design notes curated from PIC16 mid-range application briefs — information not contained in the bare datasheet PDF.

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PIC16F874T-04I/L - 8-bit Flash MCU, 7KB, 44-PLCC | Microchip
PIC16F874T-04I/L

PIC16F874T-04I/L - 8-bit Flash MCU, 7KB, 44-PLCC | Microchip

The Microchip Technology PIC16F874T-04I/L is an 8-bit CMOS Flash-based microcontroller (MCU) built on the PIC16 enhanced core, delivering 7KB of Flash program memory, 192 bytes of RAM, and 33 digital I/O lines in a 44-pin PLCC (J-lead) package. It executes instructions in a 200 ns single-cycle period (5 MHz / 20 MHz oscillator input, depending on configuration) and integrates nanoWatt Technology power management for low-power industrial designs. What is an 8-bit Flash microcontroller? An 8-bit Flash MCU is a single-chip computer that fetches, decodes, and executes instructions on an 8-bit data path, with non-volatile Flash memory holding the user program. The PIC16F874 belongs to the mid-range PIC family (PIC16 -> PIC mid-range MCU -> 8-bit microcontroller -> microcontroller -> semiconductor), positioned between baseline PIC10/12 devices and the high-performance PIC18 family. It is widely used in industrial control, instrumentation, and embedded consumer designs that require ADC, PWM, and serial communication peripherals. Key features include 5 channels of 10-bit Analog-to-Digital Conversion (ADC), two 8-bit timers plus one 16-bit timer, a USART module, a Master Synchronous Serial Port (MSSP) supporting SPI and I2C, a Capture/Compare/PWM (CCP) module, and a parallel slave port for external bus interfacing. The industrial (-40C to +85C) operating temperature grade, 4V to 5.5V supply range, and 20 MHz maximum clock speed make the PIC16F874T-04I/L well suited for factory and process control. The PIC16F874T-04I/L uses a Harvard-architecture RISC core with 35 single-word instructions, providing deterministic interrupt latency and predictable code execution. The integrated nanoWatt Technology features multiple idle and sleep modes with sub-microampere standby currents, enabling battery-backed industrial sensor nodes and remote instrumentation that must operate for years on a single cell. Typical applications include industrial automation controllers, HVAC blower and damper controls, sensor signal conditioning front-ends, motor-drive interface logic, and user-interface panels with LED or LCD displays. The parallel slave port also allows the device to operate as a peripheral to a host CPU in larger systems. When designing with this part, place decoupling capacitors (100 nF ceramic plus 10 uF bulk) within 5 mm of VDD/VSS pairs and reserve the MCLR pin for a proper reset network. The 44-PLCC footprint requires a socket for in-field firmware updates or bench prototyping. PIC16F874 is at end-of-life; Microchip recommends the pin-compatible PIC16F884 as the modern replacement.

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PIC16F874T-04I/PQ - 7KB Flash 8-bit MCU, 44-MQFP | Microchip
PIC16F874T-04I/PQ

PIC16F874T-04I/PQ - 7KB Flash 8-bit MCU, 44-MQFP | Microchip

The Microchip Technology PIC16F874T-04I/PQ is a CMOS Flash-based 8-bit microcontroller from the PIC16F family, packaged in a 44-pin MQFP (PQ) measuring 10x10 mm, executing instructions in 200 ns with only 35 single-word instructions and integrating 7 KB (4K x 14 words) of program memory, 192 bytes of RAM and 33 digital I/O pins. Operating at 5V with a maximum 4 MHz oscillator input, the device delivers Microchip's PIC16 mid-range RISC architecture in an industrial-grade temperature range (-40C to +85C) denoted by the "I" suffix and a tape-and-reel "T" packaging code. An 8-bit PIC microcontroller (PIC MCU) is a Reduced Instruction Set Computer (RISC) Harvard-architecture device widely adopted across embedded systems for its deterministic instruction timing, low power consumption, and extensive peripheral integration. Within the product hierarchy, the PIC16F874 sits between the smaller PIC12/PIC16F8xx series and larger PIC18/PIC24 devices. Its Flash program memory plus integrated peripherals make it part of Microchip's broad microcontroller IC family under the broader category of integrated circuits and microcontrollers. Key features include Flash program memory allowing in-system reprogramming, Harvard architecture with separate program and data buses, 200 ns instruction execution enabling real-time control, parallel slave port for external memory expansion, USART, MSSP (SPI/I2C), 8-channel 10-bit ADC, and capture/compare/PWM modules. The 33 I/O pins support direct interfacing with sensors, displays, and communication peripherals. The "-04" speed suffix designates a 4 MHz maximum oscillator input, and the "I" temperature grade extends operation to -40C to +85C industrial range. The device's Pic architecture implements a 14-bit instruction word and an 8-bit data path optimized for C and assembly development under MPLAB X IDE. Typical applications include industrial control systems, automotive body electronics, sensor signal conditioning, motor control, and consumer appliance controllers. The part is also widely used in legacy embedded designs and educational platforms due to its mature toolchain. Designers transitioning from this device should consider that Microchip now recommends the newer PIC16F884 as the recommended replacement. The MQFP package requires careful PCB layout for the 0.8 mm lead pitch; an exposed pad variant is not available. This page synthesizes pricing from authorized distributors, drop-in compatible variants in the PIC16F family, and practical design guidance not consolidated in a single manufacturer datasheet page.

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PIC16F874T-04I/PT - 4MHz 8-bit Flash MCU, 7KB | Microchip
PIC16F874T-04I/PT

PIC16F874T-04I/PT - 4MHz 8-bit Flash MCU, 7KB | Microchip

The Microchip Technology PIC16F874T-04I/PT is an 8-bit CMOS Flash-based PIC microcontroller operating at 4MHz with 7KB (4K x 14) of in-system programmable Flash program memory, 192 bytes of RAM, and 128 bytes of EEPROM, housed in a 44-pin TQFP (10x10 mm) package rated for the industrial temperature range of -40C to +85C. A PIC microcontroller (Programmable Intelligent Computer peripheral controller) is a family of 8-bit, 16-bit, and 32-bit RISC-based microcontrollers manufactured by Microchip Technology. PIC MCUs integrate CPU core, Flash program memory, SRAM data memory, EEPROM, timers, capture/compare/PWM, ADC, and serial peripherals (UART, SPI, I2C) on a single CMOS die. PIC MCUs sit within the broader taxonomy of microcontroller -> embedded processor -> semiconductor device, and remain widely adopted in industrial control, automotive body electronics, white goods, and consumer applications due to their deterministic instruction execution, low power consumption, and free MPLAB X IDE toolchain. The PIC16F874T-04I/PT executes instructions in a 200ns single-cycle instruction time and supports only 35 single-word instructions, simplifying firmware development. It provides 33 digital I/O pins, a 10-bit ADC with up to 8 channels, two 8-bit timers plus one 16-bit timer, a Watchdog Timer with its own on-chip RC oscillator for reliable operation, and synchronous/asynchronous serial ports (USART) plus an SPI/I2C-compatible MSSP peripheral. nanoWatt Technology adds power-managed sleep modes that drop quiescent current below typical operating values for battery-powered applications. Architecturally, the PIC16F874 family uses a Harvard RISC core with separate program and data buses, a hardware multiplier (8x8 single-cycle), and 14-bit wide instruction words. The 4MHz clock yields a 1MIPS throughput at 5V operation, and Flash in-circuit serial programming (ICSP) is supported via two pins, enabling in-field firmware updates without removing the part from the board. Typical applications include industrial process control, sensor signal conditioning, HVAC fan/blower controllers, motor-drive supervisory boards, security keypads, and remote sensor nodes. The 33 I/O count and 10-bit ADC make it well-suited for mixed analog/digital front-ends. Designers should note that Microchip recommends the newer PIC16F884 as a successor in production designs. Existing firmware typically ports with minimal effort, but verify peripheral mapping and interrupt vector assignments when migrating. Operate VDD between 4.0V and 5.5V for full 4MHz performance. This page synthesizes distributor pricing, drop-in PIC16F87x alternatives, and practical design notes not found in the manufacturer datasheet alone, supporting both new designs and legacy board rework.

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PIC16F874T-10E/L - 8-bit Flash MCU, 7KB, 44-PLCC | Microchip
PIC16F874T-10E/L

PIC16F874T-10E/L - 8-bit Flash MCU, 7KB, 44-PLCC | Microchip

The Microchip Technology PIC16F874T-10E/L is an 8-bit CMOS Flash-based RISC microcontroller in a 44-pin PLCC package, delivering 7KB of program memory and 192 bytes of RAM with 33 digital I/O pins. It executes instructions in 200 ns, supports a 20 MHz clock speed, and operates from a 4V to 5.5V supply, making it suitable for embedded control tasks that require deterministic real-time response. What is an 8-bit Flash MCU? An 8-bit Flash microcontroller is a single-chip computer built around an 8-bit data path, integrating a CPU, non-volatile Flash program memory, RAM, and peripherals such as timers, ADC, and serial interfaces. Within the broader MCU taxonomy, it sits as PIC16 -> 8-bit PIC -> RISC microcontroller -> embedded controller -> semiconductor. The PIC16F874 belongs to Microchip's mid-range PIC16 family, which bridges the gap between baseline PIC10/12/16 devices and enhanced PIC18 parts by adding analog and communication peripherals without increasing cost. Key features include 128 bytes of EEPROM data memory, a 10-bit ADC with up to 8 channels, a USART module, an MSSP (SPI/I2C) module, two 8-bit timers plus one 16-bit timer, a capture/compare/PWM module, and nanoWatt power management. The device offers 33 digital I/O lines distributed across PORTA, PORTB, PORTC, and PORTD, with programmable weak pull-ups on PORTB and interrupt-on-change capability. The automotive temperature grade (-40C to +125C) makes it suitable for harsh-environment designs. The PIC16F874T-10E/L uses a Harvard architecture with separate program and data buses, allowing simultaneous instruction fetch and data access. The 14-bit-wide instruction word improves code density, and the 35 single-word instruction set simplifies programming. The /L suffix denotes PLCC packaging, while the trailing T indicates tape-and-reel, and the -10E speed designation indicates a 10 MHz rated part with the Enhanced (E) silicon revision optimized for lower power consumption. Typical applications include industrial sensor interfaces, HVAC control systems, automotive body modules, low-end motor control, and battery-powered instrumentation where nanoWatt technology extends battery life. The combination of Flash, EEPROM, and robust peripherals makes it a general-purpose workhorse for legacy designs. Designers should note that PIC16F884 has been recommended as a newer replacement; if starting a new design today, evaluate the PIC16F884 for greater memory and enhanced peripherals. Adequate decoupling (0.1uF per VDD/AVDD pair) and a properly placed bulk capacitor near the IC are required for reliable ADC operation. This page synthesizes Microchip datasheet specifications, current distributor pricing, and engineering-grade drop-in alternatives, supplying practical design notes you will not find on the manufacturer's PDF or on standard distributor listings.

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PIC16F874T-10E/PQ - 8-bit Flash MCU, 7KB, 20MHz, MQFP-44 | Microchip
PIC16F874T-10E/PQ

PIC16F874T-10E/PQ - 8-bit Flash MCU, 7KB, 20MHz, MQFP-44 | Microchip

The Microchip Technology PIC16F874T-10E/PQ is a member of the PIC16F87x family of 8-bit CMOS Flash microcontrollers with nanoWatt Technology, offering 7KB of on-chip Flash program memory, 192 bytes of RAM, and 128 bytes of EEPROM in a 44-pin MQFP (PQ) package. Operating at up to 20 MHz (10 MHz instruction-cycle equivalent at the '10' speed grade), it integrates 33 digital I/O pins, a 10-bit ADC with up to 8 channels, two 8-bit timers and one 16-bit timer, an enhanced USART, MSSP (SPI/I2C), and a Capture/Compare/PWM (CCP) module for embedded control designs. A microcontroller (MCU) is a single-chip computer containing a CPU, RAM, non-volatile program memory, and configurable peripherals on one die. Within the broader taxonomy, the PIC16F874 belongs to the 8-bit microcontroller class (Harvard architecture, RISC instruction set), which sits under the larger umbrella of microcontrollers -> embedded processors -> semiconductors. The '16F' prefix identifies the mid-range PIC family; the 'F' suffix indicates Flash program memory, which is in-circuit programmable and electrically erasable - ideal for prototyping and field-upgradable designs. Key features include a wide 4.0 V to 5.5 V supply range, 25 mA source/sink per I/O, an internal 8 MHz oscillator option, and the nanoWatt power-management family features such as alternate oscillator modes and Sleep with wake-up by external interrupt or Watchdog Timer. The 10-bit A/D converter delivers 8 input channels multiplexed across PORTA and PORTE, and the Enhanced Universal Synchronous Asynchronous Receiver Transmitter (EUSART) supports RS-232 and RS-485 interfaces. The In-Circuit Serial Programming (ICSP) interface and In-Circuit Debugger (ICD) support significantly accelerate firmware development on this part. Typical applications include industrial automation (sensor conditioning, control loops), automotive subsystems (body and comfort electronics, where the 'E' extended-temperature grade matters), consumer appliances (white goods, thermostats), and embedded control boards (HVAC, security panels, motor drivers). The 33-I/O count and 7KB Flash make this part well-suited to mid-complexity applications where larger 40-pin+ MCUs are not justified. When designing with this part, ensure the decoupling capacitor is placed within 5 mm of VDD and place a 100 nF plus a bulk 10 uF capacitor combination. Note that the 'T' suffix denotes Tape & Reel packaging, '10' is the 10 MHz speed grade, 'E' is the extended (-40C to +125C) temperature grade, and 'PQ' identifies the 44-pin MQFP package. This page synthesizes distributor pricing, same-package drop-in alternatives, and practical design notes not found on any single manufacturer datasheet - giving procurement and design engineers a single source of truth for PIC16F874T-10E/PQ selection.

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PIC16F874T-10E/PT - 7KB Flash 8-bit MCU, 10MHz, TQFP-44 | Microchip
PIC16F874T-10E/PT

PIC16F874T-10E/PT - 7KB Flash 8-bit MCU, 10MHz, TQFP-44 | Microchip

The Microchip PIC16F874T-10E/PT is a CMOS Flash-based 8-bit microcontroller in the PIC16F family that delivers 200 ns instruction execution with only 35 single-word instructions, packaged in a 44-pin TQFP (PT) tape-and-reel format. It integrates 7 KB of program Flash, 192 bytes of RAM, and 33 digital I/O lines, and runs at up to 10 MHz from a 4.0 V to 5.5 V supply. The "T" suffix indicates a tape-and-reel packaging option, while "E" denotes the Enhanced extended-temperature grade. What is a PIC16F-series microcontroller? The PIC16F family is Microchip's mid-range 8-bit RISC MCU line, positioned between the baseline PIC10/12/16 architectures and the higher-pin-count PIC18 line. These devices combine a Harvard RISC core with on-chip Flash program memory, EEPROM data memory, and a rich set of peripherals including ADC, USART, MSSP (SPI/I2C), and capture/compare/PWM modules, making them a foundational element of countless embedded control systems and a parent category of broader 8-bit microcontrollers and ultimately semiconductor devices. Key features of the PIC16F874T-10E/PT include nanoWatt Technology for power-managed sleep modes, an integrated 10-bit ADC, a hardware USART for asynchronous serial communication, an MSSP peripheral supporting both SPI and I2C, and a programmable Brown-out Reset (BOR) and Watchdog Timer (WDT) for field reliability. The "Enhanced Flash" die supports In-Circuit Serial Programming (ICSP) and In-Circuit Debug (ICD) directly through two pins, allowing firmware updates without removing the part from the board. Architecturally, the PIC16F874 uses a 14-bit instruction word with an 8-bit data path, separated program and data buses (Harvard), and a hardware multiplier-free ALU tuned for deterministic interrupt latency. The 10 MHz oscillator drives a four-phase internal clock that yields the 200 ns instruction cycle advertised on the datasheet. Peripherals are mapped into a linear SFR bank, which simplifies the C and assembly tooling chain that MPLAB IDE and the XC8 compiler support. Typical applications include industrial sensor interfaces, HVAC controllers, low-end motor control, battery chargers, and consumer appliance front panels. The 33 I/O count makes it suitable as a main system controller on small control boards where a 44-pin TQFP footprint is acceptable, while still leaving headroom for keypad scans and indicator LEDs. When designing with this device, note that Microchip recommends the newer PIC16F884 as a pin-compatible successor. The "E" temperature grade extends operating range to -40C to +125C, but watch the maximum throughput derating at the upper end of the supply range. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes beyond what is on the manufacturer datasheet.

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PIC16F874T-20/L - 8-bit PIC MCU, 7KB Flash, 20MHz, 44-PLCC | Microchip
PIC16F874T-20/L

PIC16F874T-20/L - 8-bit PIC MCU, 7KB Flash, 20MHz, 44-PLCC | Microchip

The Microchip Technology PIC16F874T-20/L is an 8-bit PIC RISC flash microcontroller delivering 7KB of on-chip program memory, 192 bytes of RAM, and 33 digital I/O pins in a 44-pin PLCC (J-lead) surface-mount package. The device operates from a 4V to 5.5V supply, executes instructions at 200 ns per cycle (5 MIPS at 20 MHz), and integrates nanoWatt power-management technology for low-power operation. The PIC16F874T-20/L is the tape-and-reel, commercial-temperature variant of the PIC16F874 family. An 8-bit PIC microcontroller (MCU) is a small, self-contained computer on a single CMOS IC that combines a RISC CPU core, non-volatile flash program memory, volatile SRAM data memory, and a rich set of peripheral modules. The PIC16F family sits at the entry tier of Microchip's mid-range architecture, offering 14-bit instruction words, hardware stack, and on-chip peripherals including ADC, USART, I2C/SPI, and capture/compare/PWM. Within the broader taxonomy, the PIC16F874 belongs to the 16F mid-range family, which sits under Microchip's 8-bit product line, which itself falls under the microcontroller category of the integrated-circuits hierarchy. This hierarchy is important for engineers selecting parts because firmware developed for one PIC16F87x device typically ports with minimal changes to siblings in the same family. Key features include 7KB flash program memory (4K x 14 words), 192 bytes of data RAM, 128 bytes of EEPROM data memory, a 10-bit 8-channel analog-to-digital converter, two 8-bit and one 16-bit timer/counter modules, a synchronous/asynchronous USART port, a master SPI/I2C port, and a parallel slave port for external bus expansion. The device also provides 33 digital I/O pins, hardware interrupt handling with a 14-level deep stack, in-circuit serial programming (ICSP), and a programmable code-protection scheme. Typical applications include industrial control and instrumentation, sensor signal conditioning and front-end processing, motor-control and PWM driver boards, automotive body and chassis subsystems (where extended-temperature PIC16F874T-20I/L variants would be used), consumer-electronics user-input handling, and low-cost embedded data-acquisition front ends. The parallel slave port enables direct connection to external host processors for system expansion. When designing with the PIC16F874T-20/L, ensure decoupling capacitors of 100 nF are placed within 5 mm of each VDD/VSS pair and that the MCLR reset line is pulled high through a 10 kohm resistor with a 100 nF capacitor for noise immunity. The 44-pin PLCC socket should be socketed during prototype development to permit firmware iteration. This page consolidates distributor pricing, parametric data, and drop-in alternatives not aggregated elsewhere - it is engineered for engineers who already know the PIC16F family and need a fast, scannable reference for this specific MPN.

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PIC16F874T-20/PQ - 8-bit Flash MCU, 7KB, 20MHz | Microchip
PIC16F874T-20/PQ

PIC16F874T-20/PQ - 8-bit Flash MCU, 7KB, 20MHz | Microchip

The Microchip Technology PIC16F874T-20/PQ is an 8-bit CMOS Flash-based microcontroller from the PIC16F family, delivering 20 MHz maximum clock speed (200 ns instruction execution) in a 44-pin QFP package. It integrates 7 KB of Flash program memory, 192 bytes of RAM, and 128 bytes of EEPROM data memory, with 33 digital I/O lines organized across multiple ports. A microcontroller (MCU) is a single-chip computer that contains a CPU, non-volatile program memory (Flash/ROM), working memory (RAM), and a configurable set of peripheral interfaces such as timers, A/D converters, and serial communication blocks. Within the embedded-system hierarchy, the PIC16F874 belongs to the 8-bit PIC® mid-range family — sitting between baseline 12-bit-core PICs and the 16-bit dsPIC/PIC24 families, and below 32-bit ARM Cortex-M parts. It is intended for general-purpose embedded control where deterministic instruction execution and low power are valued over raw computational throughput. Key features of the PIC16F874T-20/PQ include the nanoWatt Technology power-management suite for low-power operation, a 10-bit multi-channel Analog-to-Digital Converter (ADC), synchronous and asynchronous serial ports (USART/SCI), a Master Synchronous Serial Port (MSSP) supporting SPI and I²C, and a Capture/Compare/PWM (CCP) module. The device runs from 4.0 V to 5.5 V and offers commercial operating-temperature range with 35 single-word instructions for ease of programming. Architecturally, the part uses a Harvard-style RISC core with separate program and data buses, allowing simultaneous instruction fetch and operand access. The 14-bit-wide instruction word delivers deterministic throughput across all instructions, simplifying real-time scheduler design. The integrated Flash memory supports in-circuit serial programming (ICSP) via two pins, enabling field firmware updates without removing the MCU from the board. Typical applications include industrial control panels, sensor-interface front-ends, consumer appliances, motor-control signal conditioning, and general-purpose data-acquisition nodes. With 33 I/O pins, the device can drive multi-digit displays, keypads, and multiple communication buses simultaneously. When designing with the PIC16F874T-20/PQ, place decoupling capacitors (100 nF ceramic plus 10 µF bulk) within a few millimetres of VDD/VSS pairs, keep the MCLR reset line noise-free, and follow Microchip's recommended PCB layout for the 44-pin QFP land pattern. Newer designs should evaluate the recommended replacement PIC16F884, which adds more memory and peripherals in a pin-compatible footprint. This page consolidates distributor pricing, drop-in replacement options, and practical design notes not found in the manufacturer datasheet — giving engineers and procurement teams a single-source reference for part qualification, BOM decisions, and second-sourcing.

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PIC16F874T-20I/PQ - 8-Bit 20MHz 7KB Flash MCU | Microchip | MQFP-44
PIC16F874T-20I/PQ

PIC16F874T-20I/PQ - 8-Bit 20MHz 7KB Flash MCU | Microchip | MQFP-44

The Microchip Technology PIC16F874T-20I/PQ is a CMOS FLASH-based 8-bit microcontroller from the PIC16F family, operating at up to 20MHz with 200 ns instruction execution, integrating 7KB (4K x 14) of Flash program memory and 192 bytes of SRAM in a 44-pin MQFP (10x10) surface-mount package. Tape-and-reel packaged (T suffix), industrial temperature graded (I suffix), and PQ designates the 44-pin MQFP variant. The device delivers 33 digital I/O lines through five I/O ports, supported by on-chip peripherals including Brown-out Detect/Reset (BOR), Power-on Reset (POR), Pulse Width Modulation (PWM), and a Watchdog Timer (WDT), with external oscillator support for flexible clocking architectures. Background Knowledge: An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data-path CPU core, integrating program memory, RAM, digital I/O, and on-chip peripherals. The PIC16F family sits within Microchip's PIC16 mid-range taxonomy: PIC10/12/16/18 families -> 8-bit MCUs -> microcontrollers -> embedded processors -> semiconductors. These MCUs are commonly used as the main system controller in cost-sensitive embedded products where deterministic instruction timing and low power consumption are priorities. The 200 ns instruction cycle time of PIC16F874 enables tight loop control in applications such as motor drive and instrumentation. Key features include 7KB self-programmable Flash program memory supporting in-application updates, 128 bytes of EEPROM data memory (per the PIC16F874 datasheet family), a 10-bit multi-channel Analog-to-Digital Converter (ADC), USART, MSSP (SPI/I2C) communications, and three hardware timers (Timer0/Timer1/Timer2) for event capture and PWM generation. The 20MHz maximum clock rate enables 5 MIPS throughput, while the industrial-grade -40C to +85C temperature range supports operation in factory-floor and outdoor equipment. Technical depth: The PIC16F874 implements a RISC Harvard-architecture core with 35 single-word instructions, 8-level deep hardware stack, and orthogonal instruction set enabling efficient code generation. Brown-out Detect/Reset holds the device in reset when VDD drops below the BOR threshold (typically 4V), preventing code execution from corrupted memory at low supply voltages. The PWM module, Capture/Compare/PWM (CCP) peripherals, and 10-bit ADC allow direct interface with sensors and actuators without external glue logic. The wide operating voltage range (typically 2.0V to 5.5V for the LF variant, 4.0V to 5.5V for the standard F variant) supports both battery-powered and line-powered designs. Typical applications include industrial process control and instrumentation, motor control boards (BLDC, stepper), HVAC system controllers, security alarm panels, consumer appliance control boards, automotive body electronics (non-safety), and embedded data-acquisition front-ends. The PIC16F874's 33 I/O lines make it especially well suited to designs that need many discrete control signals without external I/O expanders. When designing with the PIC16F874T-20I/PQ, reserve two I/O pins for the in-circuit serial programming (ICSP) interface (RB6/RB7) and ensure the MCLR pin has the proper reset-network topology. The 44-pin MQFP package has a 10x10 mm body with 0.8 mm lead pitch, requiring standard SMT reflow profile per JEDEC J-STD-020. Note that Microchip recommends the PIC16F884 as a newer active alternative to the PIC16F874 for new designs. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC16F874T-20I/PT - 8-bit 20MHz MCU, 7KB Flash, 44-TQFP | Microchip
PIC16F874T-20I/PT

PIC16F874T-20I/PT - 8-bit 20MHz MCU, 7KB Flash, 44-TQFP | Microchip

The Microchip Technology PIC16F874T-20I/PT is an 8-bit PIC16F-series CMOS Flash microcontroller (MCU) with 7KB (4K x 14 words) of program Flash, 192 bytes of data RAM, and 128 bytes of EEPROM, housed in a 44-pin TQFP (10x10 mm) package and qualified to operate across the industrial temperature range (-40C to +85C). It executes instructions in 200 ns at a 20 MHz clock and supports a 5V operating voltage per the PIC PIC® 16F family architecture. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (Flash/ROM), volatile data memory (RAM), EEPROM, and programmable peripherals onto one die. PIC16F devices sit in the mid-range PIC family — between baseline PIC10/12 and high-pin PIC18 — and are widely used in cost-sensitive embedded control where deterministic instruction timing and low-power sleep modes matter more than raw throughput. This places the PIC16F874 in the broader hierarchy: MCU -> 8-bit MCU -> mid-range PIC -> Flash MCU -> embedded controller. Key features include 33 digital I/O pins, three 8-bit timers (Timer0, Timer2) plus one 16-bit Timer1, a 10-bit ADC with 8 channels, two capture/compare/PWM (CCP) modules, MSSP (SPI/I2C) and USART (SCI) serial interfaces, and an 8-level hardware stack. Brown-out reset (BOR), power-on reset (POR), watchdog timer (WDT), and ICD in-circuit debug are built in. The Flash-based program memory is in-system programmable via the ICSP interface, allowing field firmware updates. Architecturally, the PIC16F874T-20I/PT uses Microchip's Harvard RISC core with separate program and data buses, 14-bit wide instruction words, and 35 single-word instructions. The 'T' suffix denotes Tape & Reel packaging, the '20' denotes 20 MHz maximum clock, the 'I' denotes the industrial temperature grade, and '/PT' designates the 44-pin TQFP package. The part is electrically and logically compatible with the PIC16F874A family and is supported by MPLAB X IDE, the XC8 compiler, and a mature toolchain. Typical applications include industrial control panels, sensor signal conditioning, motor control signal boards, RS-232/RS-485 bridges, LED display drivers, HVAC controllers, and consumer appliance control where 8-bit processing, low cost, and proven longevity are valued. When designing, confirm the 44-TQFP land pattern is identical to the PIC16F874A/PT footprint for tooled PCB reuse, ensure the AVDD/AVSS pair is properly decoupled for ADC accuracy, and use MPLAB X with the XC8 compiler for the latest support. This page synthesizes drop-in alternatives, parametric comparison, and practical design notes for procurement and engineering teams evaluating the PIC16F874T-20I/PT alongside newer Microchip and third-party 8-bit MCU options.

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PIC16F876-04/SP - 8-Bit 4MHz 14KB Flash MCU | Microchip
PIC16F876-04/SP

PIC16F876-04/SP - 8-Bit 4MHz 14KB Flash MCU | Microchip

The Microchip Technology PIC16F876-04/SP is an 8-bit CMOS Flash-based PIC microcontroller delivering 4 MIPS performance with 200 ns instruction execution in a 28-pin SPDIP package. It integrates 14 KB of Flash program memory, 368 bytes of SRAM, 256 bytes of data EEPROM, and a 5-channel 10-bit ADC. The "-04" suffix indicates the 4 MHz maximum oscillator frequency grade, and the "/SP" suffix designates the 28-pin Skinny Plastic DIP through-hole and process-line package. A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory, data memory, peripherals, and I/O. The PIC16F876 belongs to the PIC16F mid-range 8-bit family, positioned in the taxonomy 8-bit MCU -> microcontroller -> embedded processor -> semiconductor IC. The PIC16F87X family is one of Microchip's most widely adopted mid-range architectures, characterized by a 14-bit instruction word, 35 single-word instructions, and Harvard bus architecture. Key features include 22 digital I/O pins, hardware USART, MSSP supporting both SPI and I2C (master/slave), two 8-bit timers and one 16-bit timer, a 10-bit A/D converter with up to 5 channels, a watchdog timer with its own on-chip RC oscillator, and In-Circuit Serial Programming (ICSP) via two pins. The device operates from 4.0 V to 5.5 V and includes a brown-out reset circuit. The Flash program memory supports 1000 erase/write cycles typical and 40-year data retention. The PIC16F876-04/SP uses Microchip's PIC16 mid-range core with a 2-stage pipeline, executing most instructions in a single 200 ns cycle at 4 MHz. The Harvard architecture separates program and data buses, allowing simultaneous instruction fetch and operand access. The on-chip ICD (In-Circuit Debug) and ICSP capability enable development without removing the chip from the board, which is critical for legacy through-hole designs that cannot be replaced with smaller surface-mount packages. Typical applications include industrial control systems, sensor signal conditioning, motor drive PWM control, automotive body electronics, HVAC thermostat controllers, instrumentation, and educational embedded platforms. The 28-pin SPDIP package is ideal for through-hole prototyping on perfboard and legacy PCB designs that require socketed or hand-replaceable parts. When designing with this device, note that the older PIC16F876 has been superseded by the PIC16F876A (improvements: nanoWatt technology, 1% internal oscillator accuracy) and later by the PIC16F886 (more memory and peripherals). New designs should consider the PIC16F886 or PIC16F1xxx enhanced family; however, the PIC16F876-04/SP remains widely available for production boards and repair replacements where a drop-in 28-pin SPDIP pinout is required.

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PIC16F876-04E/SP - 8-bit 4MHz MCU 14KB Flash 28-SPDIP | Microchip
PIC16F876-04E/SP

PIC16F876-04E/SP - 8-bit 4MHz MCU 14KB Flash 28-SPDIP | Microchip

The Microchip Technology PIC16F876-04E/SP is an 8-bit CMOS Flash-based microcontroller from the PIC® 16F family, delivering 4 MIPS performance from a 4 MHz oscillator in a 28-pin SPDIP (0.300 inch / 7.62 mm) through-hole package. It integrates 14 KB of Flash program memory (8K x 14 words), 368 bytes of RAM, and 256 bytes of EEPROM data memory, providing a compact platform for embedded control applications that require non-volatile data storage and field-reprogrammable code. What is a Microcontroller (MCU)? A microcontroller is a single-chip computer that integrates a CPU core, program memory, data RAM, peripherals (timers, ADC, communication ports, GPIO), and in modern designs non-volatile memory such as Flash and EEPROM. Within the broader taxonomy, the PIC16F876 belongs to the 8-bit microcontroller category, which sits inside the larger family of microcontrollers (MCU), which are themselves a sub-category of microprocessors and ultimately semiconductors. The "Flash" designation indicates the program memory is electrically erasable and reprogrammable in-circuit, enabling field firmware updates. Key features include 22 digital I/O pins, a 10-bit multi-channel Analog-to-Digital Converter (ADC), two 8-bit timers plus one 16-bit timer, a Capture/Compare/PWM (CCP) module, an Enhanced USART for serial communication, and a Master Synchronous Serial Port (MSSP) supporting both SPI and I2C. The "-04E" suffix denotes the 4 MHz maximum oscillator rating with the "E" (Enhanced) temperature range variant, providing -40°C to +125°C operation, and "/SP" identifies the 28-pin Skinny Plastic DIP package. The PIC16F876 uses Microchip's RISC-based Harvard architecture with only 35 single-word instructions, enabling 200 ns instruction execution at 4 MHz. This architecture separates program and data memory buses for parallel fetch, and the part is source-code compatible with PIC12Cxxx, PIC16C5x, PIC16C7x, and PIC14000 devices, simplifying migration across product lines. Typical applications include industrial control and sensor interfaces, automotive body electronics, low-end consumer appliances, HVAC thermostat controls, remote sensor nodes, and educational/hobbyist platforms. The 14 KB Flash and 256-byte EEPROM make it well suited to applications that store calibration constants or runtime configuration in non-volatile memory alongside user firmware. Design consideration: at 4 MHz the MCU executes most instructions in a single 200 ns cycle, but interrupt latency, ADC acquisition time, and communication peripheral setup must be factored into the worst-case timing budget. The 28-pin SPDIP is the most common form factor for the PIC16F87x family, allowing hand-soldering and breadboard prototyping. This page synthesizes distributor availability, parametric drop-in alternatives, and design notes not found on stock product pages, providing engineering reference value beyond what a single manufacturer datasheet page offers.

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PIC16F876-04I/SO - 8-bit MCU, 14KB Flash, 4MHz, 28-SOIC | Microchip
PIC16F876-04I/SO

PIC16F876-04I/SO - 8-bit MCU, 14KB Flash, 4MHz, 28-SOIC | Microchip

The Microchip Technology PIC16F876-04I/SO is an 8-bit CMOS FLASH-based PIC microcontroller featuring a 14KB (8K x 14 words) program memory, 368 bytes of RAM, and 256 bytes of EEPROM data memory, housed in a 28-pin SOIC wide-body package operating at up to 4MHz instruction execution. According to the manufacturer datasheet, this part offers 22 digital I/O pins, an integrated 8-channel 10-bit ADC, three timers, capture/compare/PWM modules, a USART, an MSSP (SPI/I2C) peripheral, and a 200ns instruction cycle for efficient embedded control. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path and a RISC-style Harvard architecture that fetches instructions from one memory space and data from another. Within the broader semiconductor hierarchy, an MCU sits between a digital logic IC and a microprocessor: it integrates a CPU, non-volatile program memory, volatile RAM, and a rich set of peripherals (ADC, timers, communication blocks) into a single package. The PIC16F876 family uses Microchip's PIC® mid-range core, which is positioned above baseline PIC10/12 devices and below the enhanced PIC18 family in terms of instruction set and peripheral complexity. Key features include a wide 2.0V to 5.5V operating range, in-circuit serial programming (ICSP) capability, a watchdog timer with its own on-chip RC oscillator, power-on reset, brown-out detection, and an industrial-grade (-40°C to +85°C) temperature range denoted by the 'I' suffix. The '04' suffix indicates a 4MHz rated oscillator; a faster '20' speed grade is also offered in the family. Code protection hardware prevents unauthorized reads of onboard flash memory. The PIC16F876 employs a Harvard architecture with separate program and data buses, allowing the 14-bit instruction word to be fetched while an 8-bit data operand is being read - eliminating single-cycle bottlenecks. The 35 single-word instruction set simplifies assembly-level programming, and the 8-level deep hardware stack supports structured subroutine nesting. Typical applications include industrial sensor interfaces, appliance control boards, automotive subsystems, low-cost data acquisition modules, and battery-powered measurement instruments. The 28-SOIC wide package (0.295 in / 7.50 mm) is compatible with hand-soldering as well as production pick-and-place assembly, making this MCU versatile across prototyping and volume manufacturing. When designing with the PIC16F876-04I/SO, observe the 4 MHz FOSC maximum and confirm that required oscillator configurations match the chosen crystal or resonator. The '04' speed grade limits analog performance and ADC throughput relative to the '20' grade, so designers targeting higher execution throughput should evaluate the speed upgrade early in the design cycle. This page synthesizes distributor pricing, drop-in compatible same-package alternatives, and practical design notes not found in the manufacturer datasheet, providing actionable engineering context for sourcing and second-source decisions.

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PIC16F876-10E/SO - 8-bit Flash MCU 14KB 22 I/O SOIC-28 | Microchip
PIC16F876-10E/SO

PIC16F876-10E/SO - 8-bit Flash MCU 14KB 22 I/O SOIC-28 | Microchip

The Microchip Technology PIC16F876-10E/SO is a 14 KB Flash-programmable 8-bit PIC16 CMOS microcontroller running at 10 MHz, packaged in a 28-pin SOIC and rated for the -40C to +125C industrial temperature range. The "-10E" suffix denotes a 10 MHz speed grade (200 ns instruction cycle) and the Enhanced (-40C to +125C) industrial temp window, while "/SO" specifies the wide-body 7.50 mm SOIC-28 footprint. A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, working RAM, EEPROM, digital I/O and on-chip peripherals such as timers, ADC and serial interfaces. Within the Microchip taxonomy the PIC16F876 belongs to the mid-range PIC16 family, which sits between the baseline PIC10/12/16 and the high-performance PIC18/PIC24 dsPIC families, and is widely used for cost-sensitive embedded control in industrial, automotive and consumer products. Key features of the PIC16F876-10E/SO include 368 bytes of SRAM, 256 bytes of data EEPROM, 22 digital I/O pins, a 5-channel 10-bit ADC, two 8-bit timers plus one 16-bit timer, two Capture/Compare/PWM modules, a USART and a Synchronous Serial Port configurable as SPI or I2C. The device executes 35 single-word instructions and supports in-circuit serial programming (ICSP) plus in-circuit debugging via ICD, eliminating the need for an external programmer for development. Architecturally the PIC16F876 uses a Harvard RISC core, separate program and data buses, a 14-bit instruction word, and a 200 ns instruction cycle at 10 MHz. The 8-level hardware stack and 15 interrupt sources give deterministic real-time response. The 256-byte on-chip EEPROM is rated for 1 million erase/write cycles, enabling non-volatile parameter storage without an external memory device. Typical applications include industrial sensor signal conditioning and supervisory control, automotive body and HVAC subsystems, motor control (small BLDC and stepper drives), battery chargers, smart energy meters, consumer white goods, and any embedded product requiring reliable 8-bit processing with on-chip Flash and EEPROM. The wide SOIC-28 footprint simplifies hand-soldering for prototypes and is compatible with standard SMT lines. A key design consideration is the 10 MHz speed grade: at VIN < 4.5 V (brown-out region) the oscillator is throttled to lower frequencies, so the analog-to-digital converter must be reconfigured when the system crosses the BOR threshold. Designers should also budget the 22-pin digital I/O count against any SPI/I2C and UART pins they assign, because the same pins double as analog inputs and PORTB interrupt-on-change sources. This page synthesizes live distributor pricing, parametric cross-references, and practical PCB layout notes not collected in any single source, giving an engineer a one-stop datasheet-plus-substitute view of the PIC16F876-10E/SO.

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PIC16F876-10E/SP - 8-bit 10MHz MCU 14KB Flash 28-SPDIP | Microchip
PIC16F876-10E/SP

PIC16F876-10E/SP - 8-bit 10MHz MCU 14KB Flash 28-SPDIP | Microchip

The Microchip Technology PIC16F876-10E/SP is an 8-bit CMOS FLASH-based PIC microcontroller executing instructions in 200 ns, packaged in a 28-pin SPDIP (Skinny Plastic DIP) through-hole format. It features 14 KB of program memory, 368 bytes of RAM, 256 bytes of EEPROM, 22 digital I/O pins, and operates at 10 MHz across a 2.0V to 5.5V supply range. The 'E' suffix designates the enhanced industrial temperature grade (-40°C to +125°C), while '10' indicates the 10 MHz speed grade and 'SP' denotes the 28-SPDIP package. An 8-bit microcontroller (MCU) is a single-chip computer containing a CPU, program memory, RAM, EEPROM, peripheral set, and I/O pins on one die. The PIC16F family specifically uses Microchip's Harvard RISC architecture with 35 single-word instructions, providing deterministic 200 ns instruction execution at 10 MHz. MCUs sit within the broader embedded system hierarchy: microcontroller -> embedded processor -> semiconductor -> integrated circuit, serving as the programmable logic element in countless commercial and industrial products. Key differentiating features include 5 channels of 10-bit analog-to-digital conversion, a USART for serial communication, MSSP for SPI and I²C, two 8-bit timers plus one 16-bit timer, a 14-bit instruction word, and a 14-bit program counter addressing up to 8K x 14 words. In-system programming (ICSP) via two pins enables field firmware updates without removing the MCU from the board. Architecturally, the PIC16F876 uses CMOS FLASH technology supporting 100,000 erase/write cycles typical, with self-reprogrammable capability under software control. The Harvard bus separates program and data memory paths, eliminating fetch-execute bottlenecks common to von Neumann architectures. The enhanced core includes an 8-level deep hardware stack, indirect addressing modes, and a hardware multiplier is not present on this baseline family member. Typical applications include industrial sensor interfaces, appliance control panels, automotive body electronics (under hood temperature requires the 'I' grade), low-power remote controls, and legacy product replacements where pin-compatible migration is essential. The SPDIP package is preferred for hobbyist prototyping, breadboarding, and through-hole manufacturing lines that cannot accommodate surface-mount assembly. When designing, observe the 22 I/O maximum and the shared analog/digital functions on PORTA and PORTE to avoid conflicts. The 'E' industrial grade is appropriate for most commercial enclosures; upgrade to the 'I' (-40°C to +125°C operational, -40°C to +150°C storage) only when full automotive thermal stress is required. This page synthesizes distributor inventory, parametric drop-in alternatives, application references, and engineering design notes - information not aggregated on any single manufacturer or distributor product page - to accelerate sourcing and design-in decisions.

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