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PIC16F627-04/SO - 8-bit 4MHz 1.75KB Flash MCU 18-SOIC | Microchip
PIC16F627-04/SO

PIC16F627-04/SO - 8-bit 4MHz 1.75KB Flash MCU 18-SOIC | Microchip

The Microchip PIC16F627-04/SO is an 8-bit CMOS Flash-based mid-range microcontroller (MCU) running at 4 MHz instruction execution with 1.75 KB (1K x 14) of on-chip Flash program memory, housed in an 18-pin SOIC (Small Outline IC) package. It belongs to Microchip's PIC16F62X family and uses the Harvard RISC architecture, providing 200 ns instruction execution across 35 single-word instructions. The device operates from 3.0 V to 5.5 V supply, supporting both 3.3 V and 5 V system designs. An 8-bit microcontroller (MCU) is a small, self-contained computer-on-a-chip that combines a CPU, RAM, Flash/ROM program memory, and peripherals such as timers, ADC, and I/O ports on a single die. MCUs sit at the top of the embedded computing hierarchy: microcontroller -> embedded processor -> semiconductor IC. The PIC16F62X family's mid-range 14-bit instruction word places it between PIC10/12/14 baseline (12-bit) and PIC18 enhanced (16-bit) cores, balancing code density, peripheral richness, and ease of programming. Key features include 224 bytes of RAM, 128 bytes of EEPROM data memory, 16 digital I/O pins, two 8-bit timers plus one 16-bit timer, a 10-bit ADC (multiplexed with comparator inputs), a USART module, an internal 4 MHz oscillator, and a comparator with voltage reference. The 4 MHz speed grade is indicated by the "-04" suffix; an "-20" suffix part runs up to 20 MHz. Brown-out reset (BOR), power-on reset (POR), and watchdog timer (WDT) provide robust field deployment. Architecturally, the PIC16F627 implements a Harvard bus with separate program and data paths, allowing instruction fetch and data access to overlap, which is why one cycle per instruction is achievable. The 14-bit instruction width is wider than baseline PIC cores, giving more addressing modes and richer peripheral control in a single opcode. The 18-SOIC package offers 0.295 inch (7.50 mm) body width with gull-wing leads for surface-mount assembly. Typical applications include consumer appliances, low-end remote controls, sensor signal conditioning, LED driving, battery chargers, automotive body controllers, and industrial control. The on-chip peripherals make it well suited to standalone "sense, decide, act" tasks that do not need higher-end 32-bit MCUs. When designing with this part, place decoupling capacitors (100 nF plus 10 uF) within a few millimeters of VDD/VSS, route the MCLR pin through a 10 kohm pull-up if not used as a reset, and verify the configuration word matches the chosen oscillator mode. Industrial and automotive designs should consider the PIC16F627-04I/SO (extended temperature) or PIC16F628A variant for 20 MHz operation. This page synthesizes distributor stock levels, drop-in same-package alternatives, pricing tiers, and practical design notes for the PIC16F627-04/SO - data not consolidated on a single manufacturer or distributor page.

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PIC16F627-04/SS - 4MHz 8-bit Flash MCU 1.75KB | Microchip
PIC16F627-04/SS

PIC16F627-04/SS - 4MHz 8-bit Flash MCU 1.75KB | Microchip

The Microchip Technology PIC16F627-04/SS is an 8-bit Flash-based CMOS microcontroller from the PIC16F62X family, operating at up to 4MHz with 1.75KB (1K x 14) of Flash program memory, packaged in a 20-pin SSOP (Shrink Small Outline Package) for surface-mount designs. It integrates 224 bytes of RAM, 128 bytes of EEPROM, 16 digital I/O pins, a USART module, an analog comparator with programmable on-chip voltage reference, a Capture/Compare/PWM (CCP) module, and a watchdog timer in a compact 7.2mm x 5.4mm SSOP-20 footprint. An 8-bit microcontroller (MCU) is a small computer-on-a-chip that integrates a CPU, program memory (Flash/ROM), data memory (RAM), and peripherals onto a single die. The PIC16F62X family uses a Harvard RISC architecture with separate program and data buses, 35 single-word instructions, and a 200ns instruction execution time, which enables deterministic real-time control in cost-sensitive embedded applications. The PIC16F627 sits in the low-tier of this family and is widely used as a stepping stone between simple 10/12F devices and larger PIC16F87X controllers. Key features of the PIC16F627-04/SS include: 4MHz maximum clock (the "-04" suffix denotes the 4MHz speed grade), 16 I/O pins with individual direction control, high-current sink/source capable of directly driving LEDs, brown-out reset (BOR) and power-on reset (POR), an analog comparator module with programmable voltage reference, and one 10-bit PWM output. The device operates over the commercial 0°C to +70°C range (industrial -40°C to +85°C variants use the "-I" suffix). The PIC16F62X architecture uses a 14-bit instruction word with a two-stage pipeline, a hardware stack of 8 levels, and 16 special-function hardware registers. The integrated USART supports RS-232/RS-485 asynchronous communication up to the Fosc/16 bit rate, while the CCP module can operate in Capture, Compare, or 10-bit PWM mode. The on-chip 4MHz internal oscillator (with software-selectable frequencies from 31kHz to 4MHz via the OSCCAL register) eliminates the need for an external crystal in many cost-sensitive applications. Typical applications include consumer appliance control, LED lighting controllers, small motor control, remote controls, security sensor interfaces, and low-end industrial control. The PIC16F627's small footprint, low cost, and integrated peripherals make it well-suited for designs where a full-featured MCU would be over-spec and an 8-pin device would lack I/O. When designing with the PIC16F627-04/SS, ensure your supply voltage is within 2.0V to 5.5V (typical 3.3V/5V operation), provide adequate decoupling at VDD/VSS, and configure the CONFIG register for the desired oscillator and reset source. The MCLR pin must be pulled high through a resistor for normal operation, and unused I/O pins should be configured as outputs low to minimize current draw. This page synthesizes distributor pricing, drop-in same-package alternatives in the PIC16F62X family, and practical design notes not found in the manufacturer datasheet alone.

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PIC16F627-04E/P - 8-bit Flash MCU, 4MHz, 1.75KB, 18-DIP | Microchip
PIC16F627-04E/P

PIC16F627-04E/P - 8-bit Flash MCU, 4MHz, 1.75KB, 18-DIP | Microchip

The Microchip Technology PIC16F627-04E/P is a flash-based 8-bit CMOS microcontroller from the PIC16F62X family, packaged in an 18-pin PDIP (0.300 inch, plastic DIP) and specified for 4 MHz oscillator operation with a 2.0V-5.5V supply range (extended -40C to +125C operating temperature for the /E industrial grade). The device integrates a RISC Harvard-architecture CPU executing one instruction per 200 ns cycle, 1.75 KB of Flash program memory (1K x 14), 224 bytes of RAM, 128 bytes of EEPROM data memory, and 11 general-purpose I/O pins with programmable weak pull-ups on PORTB. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, non-volatile program memory (Flash/ROM/EPROM), data memory, timers, interrupts, and I/O peripherals on one die. Within the broader taxonomy, the PIC16F627 sits in the mid-range 8-bit PIC16 family of MCUs -> 8-bit microcontrollers -> microcontrollers (MCUs) -> microprocessors and microcontrollers -> semiconductor ICs -> integrated circuits. The RISC Harvard architecture used by PIC16F62X separates program and data buses, enabling simultaneous instruction fetch and data access, which yields deterministic instruction timing suitable for real-time embedded control. Key differentiating features include a hardware USART for asynchronous serial communication, a capture/compare/PWM (CCP) module, two 8-bit timers (TMR0/TMR2) plus one 16-bit timer (TMR1), a watchdog timer (WDT) with its own dedicated on-chip RC oscillator for reliable operation independent of the system clock, brown-out detect (BOD), power-on reset (POR), power-up timer (PWRT), and oscillator start-up timer (OST). The instruction set comprises only 35 single-word instructions, easing firmware development. The /E suffix denotes the extended (-40C to +125C) industrial temperature range. Architecturally the PIC16F627 uses a 14-bit wide instruction word and supports both internal and external oscillator modes (LP, XT, HS, RC, INTOSC), with an internal 4 MHz RC oscillator available. The Flash memory supports in-circuit serial programming (ICSP) via the RB6/RB7 pins plus MCLR, enabling in-field firmware updates without removing the device from the board. Typical applications include low-cost remote controls, sensor signal conditioning front-ends, simple motor control loops, RS-232/RS-485 protocol bridges, appliance control boards, battery chargers, and consumer white-goods control panels. The compact 18-pin DIP form factor also makes the part a popular choice for hobbyist, education, and breadboard-prototype development. Designers should allocate the MCLR pin with the standard 10 kohm pull-up to VDD and the recommended 100 nF decoupling capacitor on VDD placed within 5 mm of the pin. The /E extended temperature grade makes the part well-suited to automotive under-hood and industrial cabinet environments where commercial-grade 0C to +70C parts would fail. This page synthesizes distributor pricing, drop-in same-package alternatives within the PIC16F62X family, and practical engineering design notes not found in the bare datasheet.

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PIC16F627-04E/SS - 4MHz 8-bit Flash MCU, 1.75KB | Microchip
PIC16F627-04E/SS

PIC16F627-04E/SS - 4MHz 8-bit Flash MCU, 1.75KB | Microchip

The Microchip PIC16F627-04E/SS is a flash-based 8-bit CMOS microcontroller from the PIC16F62X family, providing 1.75KB (1K x 14) of program memory, 224 bytes of RAM, and 128 bytes of EEPROM in a 20-pin SSOP package. It operates from 2.0V to 5.5V with a 4 MHz maximum internal clock and supports an external oscillator up to 20 MHz, making it well-suited for low-power and cost-sensitive embedded designs. An 8-bit microcontroller is a single-chip computer that integrates a CPU, program memory (Flash/ROM), data memory (RAM), and peripherals onto one silicon die. The 8-bit designation refers to the native data-path width; values are processed in 8-bit chunks. Within the broader taxonomy, the PIC16F627 sits in the microcontroller -> embedded controller -> semiconductor hierarchy, while the RISC-style Harvard architecture places it in the mid-range PIC16 family, which is a sub-class of Microchip's PIC product line. Key features include 16 I/O pins with individual direction control, two analog comparators with programmable on-chip voltage reference, a USART module for asynchronous and synchronous serial communication, and a capture/compare/PWM (CCP) module. The device also integrates a power-on reset (POR), brown-out detect (BOD), watchdog timer (WDT) with its own on-chip RC oscillator, and programmable weak pull-ups on PORTB for direct interface to mechanical switches. Architecturally, the PIC16F62X family uses a Harvard architecture with separate program and data buses, an 8-level deep 13-bit hardware stack, and 35 single-word instructions. Most instructions execute in a single 200 ns instruction cycle at 20 MHz, which gives the family strong deterministic interrupt response and predictable code execution times that are useful for real-time control loops. Typical applications include appliance control, remote transmitters, small motor control, battery chargers, automotive accessories (non-safety subsystems), and low-end consumer products. The wide 2.0-5.5V operating range allows the same part to be used in 3.3V and 5V systems. The 'E' suffix indicates the extended industrial temperature range (-40C to +125C), making the -04E/SS variant suitable for harsh-environment industrial designs where the standard 0C to +70C part is not adequate. When designing with this part, note that the maximum 4 MHz specification in the part number refers to the internal clock and 5V operation. At lower supply voltages the maximum oscillator frequency is derated, and engineers should consult the frequency-vs-voltage graph in the datasheet to avoid oscillator failure in brown-out conditions. The ICSP programming interface uses RB6 and RB7, so these pins must be accessible in the PCB layout. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes that complement, but do not replace, the official Microchip datasheet.

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PIC16F627-04I/P - 8-Bit 4MHz 1.75KB Flash MCU | Microchip
PIC16F627-04I/P

PIC16F627-04I/P - 8-Bit 4MHz 1.75KB Flash MCU | Microchip

The Microchip Technology PIC16F627-04I/P is an 8-bit Flash-based CMOS microcontroller from the PIC16F62X family, operating up to 4 MHz instruction rate and featuring 1.75 KB (1K x 14) of program memory, 224 bytes of RAM, and 128 bytes of EEPROM, housed in an 18-pin PDIP through-hole package. It provides 16 I/O pins with individual direction control, two analog comparators with programmable on-chip voltage reference, a USART module, and an internal oscillator option. The 'I' suffix designates the industrial temperature grade (-40C to +85C), making this part suitable for harsh-environment embedded designs. An 8-bit microcontroller is a single-chip computer that processes data 8 bits at a time, executes one instruction per cycle from on-chip Flash memory, and integrates CPU, RAM, EEPROM, timers, I/O and serial peripherals in a single IC. The PIC16F627 belongs to the broader category of microcontrollers -> embedded controllers -> microprocessors -> semiconductors. Its RISC-like Harvard architecture separates program and data buses, allowing simultaneous instruction fetch and operand read for deterministic execution timing. Key features of this device include 35 single-word instructions, 200 ns instruction cycle at 4 MHz, 10-bit-plus resolution PWM, a programmable Watchdog Timer with on-chip RC oscillator, in-circuit serial programming (ICSP), and code protection. The two analog comparators feed a programmable on-chip voltage reference module with input multiplexing from external pins and internal VREF, enabling mixed-signal designs without external analog components. The device supports four oscillator options: RC, LP, XT, and HS. Typical applications include industrial control panels, sensor signal conditioning, automotive body electronics, appliance control boards, low-cost instrumentation, security system keypads, and battery-powered remote sensor nodes. The wide industrial temperature range and DIP-18 package make the PIC16F627-04I/P especially useful for prototype development, field-replaceable modules, and educational kits where breadboard-friendly through-hole form factor is preferred. Power-saving SLEEP mode, watchdog timer and brown-out reset support unattended remote installations. When designing with the PIC16F627-04I/P, ensure the supply voltage stays within 2.0 V to 5.5 V (the -04 speed variant is rated for 4 MHz max at this voltage range) and place a 0.1 uF decoupling capacitor close to VDD. The ICSP pins (RB6/RB7) must be accessible for in-system programming and debugging, which requires either a 10 kohm pull-up on MCLR or proper isolation from driving circuitry to avoid contention during programming. This page synthesizes distributor pricing, drop-in alternatives drawn from the same PIC16F62X family, application examples, and practical design notes not consolidated in the manufacturer datasheet, giving procurement, design, and component engineering teams a single-source reference for evaluation, sourcing, and second-sourcing decisions.

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PIC16F627-04I/SO - 4MHz 8-Bit Flash MCU, 1.75KB | Microchip
PIC16F627-04I/SO

PIC16F627-04I/SO - 4MHz 8-Bit Flash MCU, 1.75KB | Microchip

The Microchip Technology PIC16F627-04I/SO is an 8-bit RISC Flash microcontroller from the PIC16F62X mid-range family, delivering 4 MIPS throughput at 4 MHz and packaged in a 300-mil 18-pin SOIC (SO) with industrial -40C to +85C temperature rating. The device integrates 1.75 KB (1K x 14) of self-programmable Flash program memory, 224 bytes of RAM, 128 bytes of EEPROM, and 16 I/O pins supporting digital and analog peripheral functions. What is an 8-bit Flash microcontroller? An 8-bit Flash microcontroller is a single-chip computer built around an 8-bit data path, Harvard architecture, and on-chip Flash program memory that is electrically erasable and reprogrammable in-circuit. The PIC16F627 belongs to the PIC16 mid-range family (8-bit microcontroller -> RISC microcontroller -> Flash microcontroller -> embedded MCU -> semiconductor), giving designers a reprogrammable alternative to OTP and ROM parts while remaining cost-competitive for high-volume consumer and industrial products. Key features include 35 single-word instructions with 200 ns instruction cycle at 4 MHz, an internal 4 MHz RC oscillator (factory calibrated to within +/- 1%), 2 analog comparators with programmable references, a Capture/Compare/PWM (CCP) module, USART for asynchronous serial communication, and synchronous serial port (SSP) support for SPI/I2C. The PIC16F627 also integrates a 16-bit timer/counter (TMR1) with a separate oscillator, two 8-bit timers, and a watchdog timer with its own on-chip RC oscillator. The PIC16F627 architecture separates program and data memory through separate buses, enabling simultaneous instruction fetch and data access. The 14-bit instruction word with 8-bit data path keeps code density high while the RISC instruction set keeps cycle counts low. Brown-out reset, power-on reset, and the wide 3.0-5.5 V operating range (note: -04 speed grade specifies 4.5-5.5 V per data sheet table) make the part robust against brown-out events common on industrial 24 V and battery-powered rails after rectification. Typical applications include remote-control transmitters, small appliance controllers, automotive interior accessories, sensor signal conditioning, simple lighting controllers, and battery chargers. The PIC16F627 is a popular drop-in upgrade for legacy PIC16F84A designs because both share an 18-pin footprint and the PIC16 core instruction set, while adding peripherals, EEPROM, and a USART. When designing with this MCU, reserve the in-circuit serial programming (ICSP) pins (RB6/RB7) for the programming header and keep traces short. Configure the configuration word to select the internal RC oscillator when cost and board space matter more than absolute frequency accuracy, or use an external crystal for USB-UART bridging or RF applications that need tight timing.

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PIC16F627-04I/SS - 8-bit MCU, 4MHz, 1.75KB Flash, SSOP-20 | Microchip
PIC16F627-04I/SS

PIC16F627-04I/SS - 8-bit MCU, 4MHz, 1.75KB Flash, SSOP-20 | Microchip

The Microchip PIC16F627-04I/SS is a mid-range 8-bit CMOS Flash-based microcontroller in the PIC16F62X family, delivering 4 MIPS performance at 4 MHz with 1.75 KB (1K x 14) of program memory in a 20-pin SSOP package. Built on Microchip's RISC architecture, it executes instructions in 200 ns using only 35 single-word instructions for easy programming. The industrial temperature grade (-40C to +85C) and wide 2.0V-5.5V operating range make it suitable for harsh-environment embedded designs. An 8-bit microcontroller (MCU) is a small computer on a single integrated circuit containing a processor, program memory (Flash/ROM), data memory (RAM), and peripherals such as timers, ADC, communication ports, and I/O pins. Within the broader semiconductor hierarchy, an MCU belongs to the microcontrollers category, which sits under Integrated Circuits, then Logic/Memory ICs. The PIC16F62X family uses a Harvard architecture separating program and data buses, allowing simultaneous instruction fetch and data access for higher throughput versus von Neumann designs. Key features of the PIC16F627-04I/SS include 224 bytes of RAM, 128 bytes of EEPROM, 16 digital I/O pins, a USART module for serial communication, two analog comparators, a capture/compare/PWM module, and a 10-bit ADC core shared with external inputs. Brown-out reset, power-on reset, watchdog timer with on-chip RC oscillator, and code protection enhance field reliability. The 20-pin SSOP package reduces board footprint versus PDIP while retaining breadboard-friendly 0.65 mm pitch. Typical applications include industrial control, sensor interfaces, low-cost motor control, LED lighting controllers, remote transmitters/receivers, smart sensors, security systems, and consumer appliances. The PIC16F627-04I/SS is a frequent choice for legacy designs transitioning from PIC16C/16F84 to modern Flash-based PICs. A development cycle using MPLAB X IDE, XC8 compiler, and PICkit programmers accelerates prototyping. When designing with this MCU, ensure the supply voltage stays within 2.0V-5.5V and that decoupling capacitors (100 nF + 10 uF bulk) are placed close to VDD/VSS. Note that the PIC16F627 is a Flash-based predecessor to the PIC16F627A (later silicon revision); firmware code is generally portable but verify peripheral registers. This page synthesizes distributor stock, pricing tiers, drop-in same-package alternatives, and practical design notes not aggregated on a single manufacturer page.

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PIC16F627-20/P - 8-Bit 20MHz 1.75KB Flash MCU | Microchip
PIC16F627-20/P

PIC16F627-20/P - 8-Bit 20MHz 1.75KB Flash MCU | Microchip

The Microchip Technology PIC16F627-20/P is a 20 MHz, 8-bit flash-based CMOS microcontroller in the PIC16F62X family, delivering 1024 words (1.75 KB) of flash program memory, 224 bytes of SRAM, and 128 bytes of EEPROM data memory in an 18-pin PDIP through-hole package. A flash-based 8-bit CMOS microcontroller (MCU) is a self-contained computing device that integrates a RISC CPU, non-volatile flash program memory, volatile SRAM, peripheral modules, and I/O on a single silicon die. The PIC16F627-20/P sits in the broader product hierarchy: 8-bit microcontroller -> microcontroller unit (MCU) -> embedded processor -> semiconductor. Its Harvard architecture separates program and data buses, and the RISC instruction set enables deterministic single-cycle execution for most instructions, making this device a classic workhorse for low-cost embedded control. Key specifications include 20 MHz maximum clock, 4.5 V to 5.5 V supply, 16 GPIO, 2 analog comparators, a USART, a Capture/Compare/PWM module, and a programmable voltage reference. The device integrates brown-out detect, power-on reset, power-up timer, oscillator start-up timer, and a watchdog timer with its own on-chip RC oscillator. With 200 ns instruction cycle time at 20 MHz and DC to 20 MHz operation, it supports real-time control loops in cost-sensitive applications. The PIC16F627-20/P's architecture combines a 14-bit instruction word, two 8-bit I/O ports (PORTB and PORTA), and 11 interrupt sources. Peripherals include two comparators with programmable reference, USART for serial communications, and a CCP module. Internal 4 MHz and 37 kHz oscillators are also available, eliminating external crystal cost in non-precision timing applications. The 35 single-word instructions reduce code complexity and accelerate time to market. Typical applications include industrial control, automotive body electronics, consumer appliances, security and alarm systems, motor control, and battery chargers. The 16 GPIO and analog comparators make it well-suited for sensor interfacing, while the USART and CCP peripherals support communication and PWM-driven actuator control in industrial and embedded designs. When designing with this part, note that '20' in the part number denotes the 20 MHz speed grade. Choose '04' for 4 MHz / extended-voltage variants and '20I' for the industrial temperature range. Decoupling 100 nF close to VDD and using the internal oscillator option can reduce BOM cost. This page synthesizes distributor pricing, drop-in alternatives within the PIC16F6XX family, and practical design notes not found in the manufacturer datasheet alone, helping engineers evaluate the PIC16F627-20/P for new designs and legacy board replacement.

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PIC16F627-20/SO - 8-Bit 20MHz 1.75KB Flash MCU | Microchip
PIC16F627-20/SO

PIC16F627-20/SO - 8-Bit 20MHz 1.75KB Flash MCU | Microchip

The Microchip Technology PIC16F627-20/SO is an 8-bit Flash-based CMOS microcontroller from the PIC16F62X family running at up to 20 MHz with 1.75 KB (1K x 14) of program memory, packaged in an 18-pin SOIC (SO) wide-body IC. It integrates 224 bytes of SRAM, 128 bytes of EEPROM data memory, 16 I/O pins, two analog comparators, a Universal Synchronous/Asynchronous Receiver/Transmitter (USART/SCI), one capture/compare/PWM module, and a programmable voltage reference. An 8-bit microcontroller (MCU) is a single-chip processor that integrates a CPU, non-volatile program memory (typically Flash), working RAM, and a rich set of peripheral interfaces. PIC microcontrollers use a Harvard architecture with separate program and data buses, a RISC instruction set (only 35 single-word instructions on the PIC16F62X family), and deterministic instruction timing - 200 ns per instruction at 20 MHz. Within the broader IC taxonomy, an MCU sits below microprocessors in complexity but above generic logic ICs, and it is the canonical choice for embedded control where deterministic real-time response, low power, and small footprint dominate. Key features of the PIC16F627-20/SO include a 20 MHz maximum clock speed, 4.5 V to 5.5 V supply range, power-on reset (POR), power-up timer (PWRT), oscillator start-up timer (OST), brown-out detect (BOD), and a watchdog timer (WDT) with its own dedicated on-chip RC oscillator. Programmable weak pull-ups on PORTB, a multiplexed MCLR pin, and ICSP (In-Circuit Serial Programming) via two pins round out the system-level integration. Harvard separation between program Flash and data EEPROM also allows simultaneous instruction fetch and data access. Typical applications for this part include industrial control logic, appliance control boards, sensor signal conditioning with on-chip comparators, low-cost UART-connected sensor nodes, simple PWM motor or LED drivers, and general-purpose embedded replacements for discrete logic. The 18-pin SOIC footprint and 5 V native supply make it especially attractive for through-hole-style 14-pin PIC upgrades where more peripherals are needed without changing the PCB. When designing with this device, leave adequate decoupling on VDD (a 100 nF ceramic close to the pin) and follow the datasheet's oscillator configuration table when selecting XT, HS, RC, or LP modes. Stack-overflow-prone firmware should enable the WDT to recover from lock-ups in remote installations. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC16F627-20/SS - 8-bit Flash MCU 20MHz 1.75KB SSOP-20 | Microchip
PIC16F627-20/SS

PIC16F627-20/SS - 8-bit Flash MCU 20MHz 1.75KB SSOP-20 | Microchip

The Microchip Technology PIC16F627-20/SS is an 8-bit Flash-based CMOS microcontroller from the PIC16F62X family operating at up to 20 MHz, with 1.75 KB of program memory and 224 bytes of RAM, housed in a 20-pin SSOP (5.30 mm body width) surface-mount package. It delivers 16 I/O lines, a Harvard RISC architecture with 35 single-cycle instructions, and supports a supply voltage range of 3.3 V / 5 V (the -20 speed grade requires 4.5 V to 5.5 V per the legacy PIC16F627 datasheet), making it suitable for embedded control tasks that fit in a small footprint. A microcontroller (MCU) is a single-chip computer containing a CPU, non-volatile program memory (Flash), volatile data memory (RAM), and a configurable set of peripheral interfaces. The PIC16F627 sits within the broader hierarchy of 8-bit MCU -> microcontroller -> embedded controller -> semiconductor IC. Microchip's PIC16F family is among the longest-lived mid-range 8-bit architectures and is widely taught in universities and used in commercial products where deterministic timing, low cost, and ease of development outweigh the need for high-performance ARM-class processing. Key features of the PIC16F627-20/SS include a Power-on Reset (POR), a Power-up Timer (PWRT), an Oscillator Start-up Timer (OST), a Brown-out Detect (BOD) block, and a Watchdog Timer (WDT) with its own dedicated on-chip RC oscillator for reliable operation. Additional peripherals include a multiplexed MCLR pin, programmable weak pull-ups on PORTB, a USART for serial communication, two 8-bit timers and one 16-bit timer, an analog comparator, and an internal voltage reference. The device is supported by the MPLAB X IDE, the XC8 C compiler, and the legacy PICkit programmers, easing development. Architecturally the device is built on Harvard architecture with separate program and data buses, allowing instruction fetch and data access to occur in the same instruction cycle. This delivers deterministic throughput - most instructions execute in a single 200 ns cycle at 20 MHz - which is one reason the PIC family is favoured for time-sensitive control loops. Typical applications include appliance control boards, sensor interface modules, low-end consumer electronics, lighting controllers, and hobby/educational kits. The wide third-party ecosystem and stable toolchain reduce time-to-market for designers replacing older PIC16F84A or PIC16F627 designs. When selecting the -20/SS variant, ensure the 4.5 V to 5.5 V supply matches the speed grade - the older /04 and /20 grades differ only in oscillator rating and Vdd range. This page synthesises distributor pricing, drop-in SSOP-20 alternatives, and design considerations that the bare manufacturer datasheet does not present.

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PIC16F627-20E/P - 8-bit 20MHz Flash MCU 1.75KB | Microchip
PIC16F627-20E/P

PIC16F627-20E/P - 8-bit 20MHz Flash MCU 1.75KB | Microchip

The Microchip Technology PIC16F627-20E/P is a flash-based 8-bit CMOS microcontroller from the PIC16F62X mid-range family, operating at up to 20MHz with 1.75KB (1K x 14) of flash program memory, packaged in an 18-pin PDIP through-hole form factor. Key headline parameters are 20MHz clock speed, 1.75KB flash, 224 bytes of SRAM, and 128 bytes of EEPROM, with an industrial/extended operating voltage range of 4.5V to 5.5V. The "E" suffix indicates an extended temperature grade of -40C to +125C, while "/P" denotes the plastic DIP-18 package. What is a PIC mid-range microcontroller? A PIC microcontroller is a small, low-power programmable computer-on-a-chip built around a Harvard architecture (separate program and data buses) using a RISC instruction set. Microcontrollers (MCUs) sit at the bottom of the embedded-computing hierarchy: MCU -> microcontroller -> embedded controller -> semiconductor IC. The mid-range PIC16 family executes one instruction per clock cycle (200ns at 20MHz), making it faster than classical 8051-class parts while keeping a small instruction footprint of only 35 single-word instructions, ideal for cost-sensitive embedded control. Key features of the PIC16F627-20E/P include an integrated 4MHz precision internal RC oscillator (no external crystal required for many applications), two analog comparators with a programmable voltage reference, a USART for asynchronous serial communication, a 16-bit timer/counter with capture/compare/PWM, an 8-bit timer/counter, an enhanced capture/compare/PWM module, and 11 digital I/O pins multiplexed with peripheral functions. Brown-out detect, power-on reset, watchdog timer with its own dedicated RC oscillator, and programmable weak PORTB pull-ups are all on-chip. Architecturally, the device uses a 14-bit instruction word, an 8-bit data path, a hardware multiply (8x8 in one cycle on this family), and a 2-level hardware stack. The internal 4MHz oscillator can be trimmed in software via the OSCCAL register, and an external clock or crystal is supported via the OSC1/OSC2 pins. The ICSP (In-Circuit Serial Programming) interface uses RB6/RB7 and lets engineers program the device in-place on the PCB. Typical applications include appliance control (washing machines, microwave ovens, coffee machines), automotive body modules (lighting, seat controllers, HVAC flaps), industrial sensor transmitters, IR remote controls, security alarm panels, and low-cost consumer electronics where a small pin count and modest flash/RAM footprint are sufficient. The extended temperature grade also makes it viable for outdoor and under-hood automotive subsystems. A key design consideration is that the 4.5V-5.5V supply requirement rules out 3.3V-only designs; designers targeting lower voltages should consider PIC16F627A-I/P (3V-5.5V) or PIC16F88 variants. Watchdog timer should always be enabled in production firmware to recover from software lockups. Always configure the unused I/O pins as outputs low to minimize current consumption. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the standalone Microchip datasheet, giving procurement and engineering teams a single decision-ready reference.

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PIC16F627-20E/SO - 8-bit PIC MCU 1.75KB Flash 20MHz SOIC-18 | Microchip
PIC16F627-20E/SO

PIC16F627-20E/SO - 8-bit PIC MCU 1.75KB Flash 20MHz SOIC-18 | Microchip

The Microchip Technology PIC16F627-20E/SO is an 8-bit flash-based CMOS microcontroller from the PIC16F62X family, delivering 20 MIPS performance at 20 MHz and packaged in an 18-pin SOIC (SO) wide-body plastic outline. It integrates 1.75 KB of flash program memory (1K x 14 words), 224 bytes of RAM, and 128 bytes of EEPROM, along with 16 digital I/O pins capable of high-current sink/source for direct LED drive. A microcontroller (MCU) is a single-chip computer containing a CPU, memory, and peripherals. The 8-bit PIC microcontroller architecture uses a Harvard design with separate program and data buses, enabling single-cycle instruction execution and deterministic timing that has made PIC MCUs a workhorse in embedded designs since the 1990s. The PIC16F62X family sits in the entry-level / mid-range tier, popular for cost-sensitive industrial control, appliance, and automotive body applications. Key features include an enhanced mid-range 14-bit instruction set, two analog comparators with a programmable on-chip voltage reference (CVREF), a Capture/Compare/PWM (CCP) module, an USART with RS-485 support, a 10-bit ADC-less design (analog handled by comparators), brown-out detect (BOD), power-on reset (POR), power-up timer (PWRT), oscillator start-up timer (OST), and a watchdog timer (WDT) with its own internal RC oscillator for fail-safe operation. The wide operating voltage range of 3.0 V to 5.5 V and four oscillator options (RC, LP, XT, HS, external) plus internal 4 MHz RC allow flexible clocking. The -E suffix designates the extended temperature grade (-40 °C to +125 °C), and the /SO suffix denotes the 18-pin SOIC wide-body package supplied in tube. Industrial-grade (-40 °C to +85 °C) is the -I suffix; the non-suffix version is commercial (0 °C to +70 °C). Typical applications include appliance control (washing machines, microwave ovens), automotive body electronics (mirror controllers, seat controllers, remote keyless entry), security and access systems, remote controls, sensor conditioning loops using the analog comparators, and small industrial control boards that benefit from the small footprint, integrated EEPROM data storage, and robust peripherals. When designing with this part, leave the MCLR pin pull-up or use a software-controlled weak pull-up after considering in-circuit serial programming (ICSP) access. Program the CONFIG word to select oscillator mode and disable unused peripherals to reduce active current below 10 µA typical in sleep. This page synthesizes distributor pricing, drop-in PIC16F62X family alternatives, and practical design notes not found in the standalone manufacturer datasheet.

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PIC16F627-20E/SS - 8-bit PIC MCU, 1.75KB Flash, 20MHz | Microchip
PIC16F627-20E/SS

PIC16F627-20E/SS - 8-bit PIC MCU, 1.75KB Flash, 20MHz | Microchip

The Microchip Technology PIC16F627-20E/SS is a flash-based 8-bit CMOS microcontroller from the PIC16F62X family, featuring a 20MHz maximum operating frequency, 1.75KB (1K x 14) of Flash program memory, 224 bytes of RAM, and 128 bytes of EEPROM data memory in a 20-pin SSOP package. The "-20E" suffix designates the 20MHz speed grade and the extended (-40C to +125C) operating temperature range, while "/SS" identifies the SSOP-20 surface-mount package supplied in tube packaging. The device provides 16 I/O pins with individual direction control, high-current sink/source capability for direct LED drive, and integrated analog peripherals including two analog comparators with programmable on-chip voltage reference. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (ROM/Flash), data memory (RAM), and peripheral interfaces on one die. The PIC16F62X family uses a Harvard architecture in which program and data buses are accessed separately, a RISC-style instruction set with 35 single-word instructions, and a two-stage pipeline that delivers one instruction per clock cycle. 8-bit MCUs sit at the bottom of the microcontroller taxonomy: 8-bit -> microcontroller -> embedded processor -> semiconductor IC, and they remain the workhorse of cost-sensitive, deterministic, low-power applications. Key features include Power-on Reset (POR), Power-up Timer (PWRT), Oscillator Start-up Timer (OST), Brown-out Detect (BOD), a Watchdog Timer (WDT) with its own on-chip RC oscillator for reliable operation, multiplexed MCLR pin, and programmable weak pull-ups on PORTB. The 20MHz internal/external oscillator, 2.0V to 5.5V wide operating voltage range, and in-circuit serial programming (ICSP) simplify prototyping and field upgrades. The architecture is optimized for low-power embedded control with nanoWatt technology and sleep currents as low as 100nA typical. Typical applications include remote controls, security and alarm panels, automotive body electronics, small appliances, sensor interfaces, battery chargers, and low-end consumer products. The wide temperature range makes the -20E variant suitable for industrial and automotive under-hood environments, while the SSOP-20 footprint allows space-constrained PCB layouts. Developers pair this MCU with MPLAB X IDE and XC8 compiler for firmware development. A key design consideration is the maximum clock frequency of 20MHz, which directly limits instruction throughput to 5 MIPS (million instructions per second). For timing-sensitive applications, calculate the worst-case interrupt latency (5 instruction cycles) before committing to the 8-bit PIC platform. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a faster path from selection to qualified BOM.

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PIC16F627-20I/P - 8-bit Flash MCU, 20MHz, 1.75KB | Microchip
PIC16F627-20I/P

PIC16F627-20I/P - 8-bit Flash MCU, 20MHz, 1.75KB | Microchip

The Microchip Technology PIC16F627-20I/P is an 8-bit Flash-based CMOS microcontroller in a 18-pin PDIP package, delivering up to 20 MHz instruction execution with 200 ns per instruction cycle. It integrates 1.75 KB of Flash program memory, 224 bytes of RAM, 128 bytes of EEPROM data memory, 16 I/O pins, three timers, two analog comparators, a USART module, and a capture/compare/PWM peripheral. The "I" suffix denotes the industrial temperature grade of -40C to +85C, and the "20" speed grade caps the oscillator at 20 MHz, while the "/P" suffix identifies the through-hole PDIP-18 package. An 8-bit microcontroller (MCU) is a self-contained computing IC that integrates a CPU, non-volatile program memory (Flash or ROM), volatile data memory (RAM), and peripheral blocks such as timers, communication interfaces, and analog comparators on a single silicon die. The PIC16F627 belongs to Microchip's mid-range PIC16 family, sitting in the broader hierarchy: PIC16F -> 8-bit PIC microcontroller -> microcontroller -> embedded controller -> semiconductor device. PIC MCUs are widely used because they employ a Harvard architecture with separated program and data buses, a RISC instruction set of only 35 single-word instructions, and deterministic interrupt latency that simplifies real-time firmware design. Key features of the PIC16F627-20I/P include 1.75 KB of self-programmable Flash (100K erase/write cycles typical), 224 bytes of RAM, and 128 bytes of EEPROM for non-volatile data storage with 1M erase/write endurance. The device supports an operating voltage range of 2.0 V to 5.5 V, low-power Sleep mode with wake-up on pin change, and an internal oscillator option on later "A" revision silicon. It also provides a programmable brown-out reset, a watchdog timer with its own on-chip RC oscillator, and In-Circuit Serial Programming (ICSP) for in-system firmware updates. Architecturally, the PIC16F627-20I/P uses a 14-bit instruction word with a hardware multiplier absent, single-cycle branch execution, and a two-stage pipeline. Its USART supports both asynchronous RS-232 and synchronous SPI master/slave modes, while the two analog comparators can be software-routed to internal reference voltages for threshold detection. These features make the device well suited to small embedded control tasks where deterministic timing and minimal external components matter more than raw compute throughput. Typical applications include appliance control boards, sensor signal conditioning, automotive body modules (non-safety), remote controls, low-cost motor drivers, security keypads, LED lighting controllers, and small industrial sensor nodes. The wide 2.0 V to 5.5 V supply range also enables battery-powered designs powered by 2xAA or single-cell Li-ion chemistries. When designing with this part, observe the maximum clock rate of 20 MHz versus the slower 4 MHz and 32 kHz internal oscillator options for low-power operation. Place a 100 nF decoupling capacitor close to VDD, and configure the MCLR pin with the recommended 10 kohm pull-up plus optional reset capacitor to avoid spurious resets. For designs migrating to the higher-integration PIC16F627A revision silicon, verify that any pinout or register-level changes are accommodated before qualification. This page synthesizes distributor pricing, drop-in alternatives drawn from the PIC16F62X family, and practical design notes not consolidated in the Microchip datasheet alone.

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PIC16F627A-E/ML - 1.75KB Flash 8-bit MCU, 20MHz, QFN-28 | Microchip
PIC16F627A-E/ML

PIC16F627A-E/ML - 1.75KB Flash 8-bit MCU, 20MHz, QFN-28 | Microchip

The Microchip Technology PIC16F627A-E/ML is a Flash-based, 8-bit CMOS microcontroller with nanoWatt Technology, housed in a 28-pin QFN (ML) package with an exposed thermal pad. It features 1.75KB of Flash program memory, 224 bytes of SRAM, 128 bytes of EEPROM data memory, 16 I/O pins, and executes instructions at 200 ns per cycle at 20 MHz. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory (Flash/ROM), volatile working memory (RAM), and peripheral interfaces onto one silicon die. The PIC16F627A belongs to the PIC16 mid-range family (PIC16 -> 8-bit MCU -> microcontroller -> semiconductor), an architecture positioned between 8-bit baseline PIC10/12 and 16-bit PIC24/dsPIC families, optimized for cost-sensitive embedded control. Key features include an internal 4 MHz oscillator, two analog comparators with a programmable voltage reference, a 16-bit timer with capture/compare/PWM (CCP), a USART for asynchronous serial communication, and nanoWatt sleep modes for battery-powered applications. The device operates from 3.3 V to 5.5 V across the industrial temperature range and supports in-circuit serial programming (ICSP) for field upgrades. The architecture uses a 14-bit instruction word with a 35-instruction RISC set and an 8-level hardware stack, providing deterministic interrupt response. Brown-out reset, power-on reset, and a watchdog timer with its own on-chip RC oscillator are integrated. The QFN-28 package exposes a thermal pad (EP) that must be soldered to the board ground plane for proper thermal and electrical performance. Typical applications include appliance control panels, automotive body modules, industrial sensor signal conditioning, remote controls, and battery-powered instrumentation. The integrated analog peripherals and small footprint make it well-suited for mixed-signal embedded designs requiring both computational and analog interface capability in a single IC. When designing with this part, ensure the exposed pad is soldered to a sufficient copper pour to meet the published thermal resistance, and reserve MCLR/VPP access for ICSP programming. Code-compatible migration to PIC16F628A or PIC16F648A allows on-board memory scaling without layout changes. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes drawn from the Microchip datasheet (40044G) and live distributor inventory, providing engineering context not present on a single datasheet page.

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PIC16F627A-E/P - 8-bit Flash MCU, 20MHz, 1.75KB | Microchip
PIC16F627A-E/P

PIC16F627A-E/P - 8-bit Flash MCU, 20MHz, 1.75KB | Microchip

The Microchip PIC16F627A-E/P is an 8-bit Flash-based CMOS microcontroller delivering 20 MHz operating speed with 1.75 KB (1K x 14) of Flash program memory in an 18-pin PDIP through-hole package. This enhanced mid-range PIC device features 224 bytes of SRAM, 128 bytes of EEPROM data memory, and 16 I/O pins organized for flexible peripheral mapping in cost-sensitive embedded designs. What is an 8-bit microcontroller? An 8-bit microcontroller (MCU) is a single-chip computer with an 8-bit data bus architecture that integrates a CPU, non-volatile program memory, volatile data memory, and peripherals on one die. The PIC16F627A belongs to the PIC® 16F family of mid-range microcontrollers, positioned in Microchip's product hierarchy as: PIC® 16F family -> mid-range 8-bit MCU -> microcontroller -> embedded controller -> semiconductor IC. These devices typically serve applications requiring deterministic real-time response, low power consumption, and ease of programming through a RISC instruction set. Key features include a 4 MHz internal oscillator, USART for serial communication, capture/compare/PWM module, two analog comparators with a programmable voltage reference, and a 35-instruction RISC architecture that executes most instructions in 200 ns at 20 MHz. The device operates from 4.5V to 5.5V across the -40C to +125C extended industrial temperature range, and is upwards compatible with the PIC16F627, PIC16C62XA, PIC16C5X, and PIC12CXXX device families for design reuse and migration. The PIC16F627A-E/P uses Harvard architecture with separate program and data buses, allowing instruction fetch and operand access to occur in the same cycle. Its Flash program memory supports in-circuit serial programming (ICSP), enabling firmware updates without removing the device from the PCB, which is critical for field-deployable and remote-sensor applications. Typical applications include automotive body and interior modules, white goods and home appliances, industrial sensor interfaces, remote control transmitters, and low-end consumer electronics. The combination of analog comparators, PWM, and USART on a single 18-pin device allows direct interfacing to sensors, motor drivers, and communication buses without external glue logic. When designing with this device, ensure your reset circuit uses the recommended 10 kohm pull-up on MCLR/VPP for proper in-circuit serial programming. Brown-out reset configuration should be matched to your supply rail tolerances to avoid spurious resets during motor or relay switching events. This page synthesizes distributor pricing, same-family alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC16F627A-E/SS - 8-Bit 20MHz 1.75KB Flash MCU | Microchip
PIC16F627A-E/SS

PIC16F627A-E/SS - 8-Bit 20MHz 1.75KB Flash MCU | Microchip

The Microchip Technology PIC16F627A-E/SS is an 8-bit flash-based CMOS microcontroller in a 20-pin SSOP package, executing instructions at 20 MHz with 200 ns instruction cycle time and offering 1.75KB (1K x 14) of flash program memory, 224 bytes of RAM, and 128 bytes of EEPROM data memory. The PIC16F627A-E/SS operates from a 2.0 V to 5.5 V supply range for the F-version (the verified data confirms 4.5 V to 5.5 V for the standard PIC16F627A), integrates 16 GPIO lines, and provides a USART, one Capture/Compare/PWM (CCP) module, two analog comparators, and a programmable voltage reference. A PIC16F family microcontroller is an 8-bit RISC Harvard-architecture microcontroller built around a small, deterministic instruction set (35 single-word instructions), allowing predictable real-time behaviour with minimal code overhead. Within the embedded hierarchy, the PIC16F family sits above 8-bit baseline PIC devices and below 16-bit PIC24/dsPIC and 32-bit PIC32 parts; the PIC16F627A specifically belongs to the mid-range PIC16 family and is pin-compatible with the PIC16F628A and PIC16F648A, which add more flash and RAM. The 'E' suffix designates the extended temperature grade (-40C to +125C), and the '/SS' suffix denotes the 20-pin SSOP package, as is documented on the Microchip product page. Key features include 4 MHz internal oscillator, nanoWatt power management with multiple sleep modes, in-circuit serial programming (ICSP), 128 bytes of EEPROM, and up to 16 digital I/O with peripheral pin select flexibility. The internal oscillator eliminates the need for an external crystal in cost-sensitive designs, while integrated analog peripherals (comparators + programmable VREF) reduce BOM in mixed-signal front-ends. The PIC16F627A's RISC pipeline executes one instruction per 200 ns at 20 MHz, offering deterministic interrupt latency suited for control loops. nanoWatt technology provides wake-up-from-sleep on interrupt with sub-microamp quiescent draw, ideal for battery-powered or energy-harvesting applications where average power budget is tight. Typical applications include appliance controls, automotive body electronics, industrial sensor conditioning, consumer remote controls, security keypads, and small motor drivers using the CCP/PWM module. Designers should respect the supply voltage range and the ICSP programming pin assignments, and account for the 35-instruction learning curve versus legacy PIC16C5X code.

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PIC16F627A-I/P - 8-bit Flash MCU, 1.75KB, 20MHz | Microchip
PIC16F627A-I/P

PIC16F627A-I/P - 8-bit Flash MCU, 1.75KB, 20MHz | Microchip

The Microchip PIC16F627A-I/P is an 8-bit fully-static Flash-based CMOS microcontroller in the PIC16F family, offering 1.75 KB (1K x 14) of Flash program memory, 224 bytes of RAM, and 128 bytes of EEPROM data memory. Housed in an 18-pin PDIP (P) through-hole package, it runs at up to 20 MHz instruction clock with a 200 ns instruction execution time and supports 35 single-word instructions for easy programming. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, program memory, and peripherals on one die. PIC16F-series MCUs sit in the hierarchy: 8-bit microcontroller -> embedded controller -> semiconductor IC -> integrated circuit. The PIC16F627A combines RISC architecture with nanoWatt power management, fitting between Microchip's baseline PIC10/12 families and the mid-range PIC18 series, making it a workhorse for cost-sensitive embedded designs. Key features include a 4 MHz internal oscillator, 16 I/O pins, a USART for asynchronous serial communication, a Capture/Compare/PWM (CCP) module, two analog comparators, and a programmable voltage reference. Operating voltage spans 4.5 V to 5.5 V with industrial temperature range -40 °C to +85 °C. The integrated peripherals eliminate many external components, reducing BOM cost and board area. The PIC16F627A uses Harvard architecture with separate program and data buses, delivering deterministic 200 ns instruction execution at 20 MHz. The CMOS Flash process supports in-circuit serial programming (ICSP) and nanoWatt power management for low-power sleep modes - critical for battery applications. It is pin-compatible with the PIC16F628A which doubles the Flash to 3.5 KB. Typical applications include automotive and industrial analog/integrated level controls, appliance controls, consumer electronics, and remote sensor nodes. The integrated analog peripherals make it ideal for level detection, motor control feedback, and SMPS support circuits. When designing with this part, ensure decoupling with a 100 nF capacitor close to VDD and consider using the internal 4 MHz oscillator to reduce external component count. Programming requires a PICkit or ICD debugger compatible with the mid-range PIC16F family. This page synthesizes distributor pricing, drop-in compatible alternatives, and practical design notes not found in the standalone manufacturer datasheet, helping engineers select the right PIC16F variant for their application.

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PIC16F627A-I/SO - 8-Bit Flash MCU 1.75KB 20MHz | Microchip
PIC16F627A-I/SO

PIC16F627A-I/SO - 8-Bit Flash MCU 1.75KB 20MHz | Microchip

The Microchip Technology PIC16F627A-I/SO is an 8-bit Flash-based CMOS microcontroller from the PIC16 family, featuring 1.75KB (1K x 14) of program memory, 224 bytes of SRAM, and 128 bytes of EEPROM data memory, housed in an 18-pin SOIC (SO) package. It operates up to 20MHz from a 4.5V to 5.5V supply and integrates a 4MHz internal oscillator, one 8-bit and one 16-bit timer, a USART, a capture/compare/PWM module, two analog comparators, and a programmable voltage reference, and is offered in the -40C to +85C industrial temperature range. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path that integrates CPU core, program memory (Flash), working memory (SRAM), non-volatile data memory (EEPROM), and peripherals such as timers, communication modules, and analog blocks into one package. Within the broader taxonomy, PIC16F627A belongs to PIC16 mid-range family -> 8-bit MCU -> microcontroller -> embedded processor -> semiconductor IC. This integrated approach allows engineers to replace multiple discrete components with one device, reducing BOM cost and PCB area while delivering deterministic real-time behavior for small-to-medium control tasks. Key features include the nanoWatt power-managed architecture offering extremely low standby current, the integrated USART for asynchronous/synchronous serial communication, the CCP module for PWM/capture/compare, and dual analog comparators that share an internal programmable voltage reference. The 18-pin SOIC package exposes 16 I/O lines plus VDD/VSS, allowing the device to drive LED indicators, sense switches, and bridge to RS-232 transceivers without external glue logic. MPLAB ICD programmer/debugger compatibility simplifies firmware development for prototyping and field updates. The PIC16F627A uses a RISC Harvard architecture with a 14-bit instruction word and a 35-instruction set, executing most instructions in a single 200ns cycle at 20MHz. Its Flash program memory supports in-circuit serial programming (ICSP) through two pins, enabling firmware updates in the field without removing the device. The integrated nanoWatt technology provides multiple idle and sleep modes that drop current consumption to microampere levels, extending battery life in portable or mains-disconnected applications. Typical applications include automotive and industrial control nodes, white-goods and appliance user interfaces, low-end remote controls, sensor signal conditioning with on-chip comparators, and small protocol bridges such as UART-to-GPIO or PWM-driven motor drivers in fans and pumps. The wide operating range makes it suitable for both line-powered industrial equipment and battery-powered consumer devices. When designing with this device, reserve two pins (RB6/RB7) for ICSP unless in-system programming is not required, place a 100nF decoupling capacitor within 5mm of the VDD pin, and connect the MCLR pin through a 10kohm pull-up to VDD for reliable reset. The CCP and USART peripheral pins must be mapped to specific I/O lines, so plan pin assignments early in the schematic phase to avoid re-routing. This page synthesizes official datasheet parameters, cross-brand equivalents from the PIC16 ecosystem, and practical design recommendations not bundled into a single manufacturer document, giving procurement engineers and embedded designers a single reference for the PIC16F627A-I/SO.

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PIC16F627A-I/SS - 8-bit Flash MCU 1.75KB 224B RAM SSOP-20 | Microchip
PIC16F627A-I/SS

PIC16F627A-I/SS - 8-bit Flash MCU 1.75KB 224B RAM SSOP-20 | Microchip

The Microchip Technology PIC16F627A-I/SS is an 8-bit flash-based CMOS microcontroller from the mid-range PIC16 family, delivering 5 MIPS performance with a 200 ns instruction cycle and only 35 single-word instructions. Housed in a 20-pin SSOP (Shrink Small Outline Package), it integrates 1.75 KB of flash program memory, 224 bytes of SRAM, and 128 bytes of data EEPROM, along with an internal 4 MHz oscillator factory calibrated to ±1% accuracy. The wide 3.0–5.5 V operating range makes it compatible with both 3.3 V and 5 V system rails. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and programmable peripherals. Within the broader taxonomy, the PIC16F627A belongs to the 8-bit microcontroller class, which sits under microcontrollers, integrated circuits, and finally semiconductors. The mid-range PIC16 core is one of the industry's most widely deployed 8-bit architectures, valued for its deterministic instruction set, low power consumption (nanoWatt technology), and rich peripheral integration for cost-sensitive embedded designs. Key features include a hardware USART for asynchronous serial communication, one capture/compare/PWM module, two analog comparators with a programmable voltage reference, an 8-level deep hardware stack, and 16 bidirectional I/O pins capable of driving LEDs directly. The device supports in-circuit serial programming (ICSP) and in-circuit debugging, enabling firmware updates and development without removing the MCU from the board. Brown-out reset, power-on reset, and a watchdog timer provide system-level robustness for unattended or industrial deployments. The PIC16F627A's combination of analog peripherals (comparators with programmable VREF) and digital peripherals (USART + CCP) makes it well-suited for mixed-signal embedded applications. nanoWatt technology provides multiple power-managed modes—run, idle, and sleep—reducing quiescent current to microampère ranges for battery-powered designs. Typical applications include automotive body electronics and sensor interfaces, industrial control panels and small appliance controllers, security and alarm systems, remote controls, lighting controllers, and low-end consumer products requiring on-board analog comparison or UART communication. When designing with the PIC16F627A-I/SS, ensure the SSOP-20 footprint uses adequate PCB copper for thermal dissipation and that the ICSP pins (RB6/RB7) are routed to a header or test pad for programming. Note that newer-generation parts such as PIC16F18444 are recommended for new designs, but the PIC16F627A remains fully active and supported for legacy systems.

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PIC16F627AT-E/SO - 8-bit Flash MCU, 20MHz, 1.75KB | Microchip
PIC16F627AT-E/SO

PIC16F627AT-E/SO - 8-bit Flash MCU, 20MHz, 1.75KB | Microchip

The Microchip Technology PIC16F627AT-E/SO is an 8-bit Flash-based CMOS microcontroller from the PIC16F627A family, offering 1.75KB (1K x 14) of Flash program memory and 224 bytes of RAM, packaged in an 18-pin SOIC (SO) wide-body 300-mil package. The 'A' suffix marks the second-generation silicon, the 'T' suffix denotes tape-and-reel packaging, the 'E' temperature grade designates the extended industrial range of -40C to +125C, and the '/SO' suffix specifies the 18-pin SOIC outline. An 8-bit Flash microcontroller (MCU) is a single-chip computer built around an 8-bit data path, integrating CPU core, non-volatile Flash program memory, RAM, EEPROM, and a rich set of peripherals into one package. It sits within the hierarchy microcontroller -> embedded controller -> semiconductor IC, and historically defined the low-cost, deterministic, low-power edge-computing class now challenged by 32-bit Cortex-M0 cores. Key features include a 20MHz maximum CPU clock yielding 200ns instruction execution, a Harvard RISC architecture with only 35 single-word instructions, an integrated 4MHz internal oscillator, 128 bytes of EEPROM data memory, a USART for asynchronous serial, a Capture/Compare/PWM (CCP) module, two analog comparators, a programmable voltage reference, and 16 I/O pins with individual direction control. Power is supplied from 2.0V to 5.5V (5V nominal for the /SO variant), and nanoWatt power-management features offer sleep currents in the microamp range. The PIC16F627A core uses a 14-bit instruction word with separate program and data buses, allowing simultaneous fetch and access. Its RISC pipeline executes one instruction per four oscillator cycles, and interrupt handling plus a hardware stack of eight levels simplify real-time firmware. The peripheral set targets analog signal conditioning (comparators + Vref) and digital communication (USART), making it well suited for sensor-interface and motor/relay-control products. Typical applications include consumer appliances, automotive body electronics, industrial control boards, remote controls, security sensor nodes, and battery-powered metering. The 18-pin SOIC provides the smallest footprint variant within the PIC16F627A family, while the 28- and 40-pin siblings add more I/O and analog channels. When designing, validate that the 5V (4.5V-5.5V) supply range of the /SO part matches the system rail, place a 100nF decoupling capacitor within 5mm of VDD, and configure MCLR with the recommended 10k pull-up. The integrated 4MHz oscillator eliminates an external crystal in cost-sensitive designs but trades absolute accuracy for BOM reduction. This page synthesizes current distributor pricing, drop-in alternatives within the SOIC-18 footprint, and practical design notes not found in the manufacturer datasheet alone.

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PIC16F627AT-E/SS - 8-bit Flash MCU 1.75KB 20MHz SSOP-20 | Microchip
PIC16F627AT-E/SS

PIC16F627AT-E/SS - 8-bit Flash MCU 1.75KB 20MHz SSOP-20 | Microchip

The Microchip Technology PIC16F627AT-E/SS is a flash-based, 8-bit CMOS microcontroller in the PIC16 family, delivering 20MHz maximum clock speed, 1.75KB (1K x 14 words) of program Flash memory, and 224 bytes of SRAM, all integrated in a 20-pin SSOP package. It supports supply voltages from 3.0V to 5.5V, with the tested operating point at 4.5V to 5.5V, and provides 16 digital I/O lines plus a 10-bit ADC, dual analog comparators, internal 4MHz oscillator, and 128 bytes of EEPROM data memory. The "A" silicon revision adds nanoWatt power management features that dramatically reduce active and sleep currents versus the legacy PIC16F627. What is a PIC16 microcontroller? The PIC16 family sits in the 8-bit RISC microcontroller tier (PIC10/12/16/18/24/32), itself a sub-category of microcontrollers and embedded controllers within integrated circuits. PIC16 devices use a 14-bit instruction word, 35 single-word instruction set, and 200ns instruction execution at 20MHz, designed for cost-sensitive deterministic control where predictable timing matters more than raw throughput. They are positioned between PIC10/12 baseline parts (smaller, lower pin count) and PIC18 mid-range parts (16-bit instruction, more peripherals), giving engineers a balance of capability and code density. Key features include nanoWatt Technology for sub-microamp sleep currents, an internal 4MHz precision oscillator (eliminating external crystal cost), Capture/Compare/PWM (CCP) module, USART for serial communications, and a programmable brown-out reset. The PIC16F627AT-E/SS also integrates a high-performance comparator with programmable reference, watchdog timer with its own on-chip RC oscillator, and an In-Circuit Serial Programming (ICSP) interface for field-upgradable firmware. The architecture combines a Harvard-style program/data bus separation, 8-level deep hardware stack, and direct/indirect addressing modes that simplify C and assembly porting. The "A" generation brings 8MHz internal oscillator precision and enhanced PWM resolution versus older PIC16F627 silicon, making it attractive for designers needing more accurate timing without external components. Typical applications include consumer appliance controls, battery-powered sensor nodes, IR remote controls, LED drivers, small motor controllers, and industrial sensor interfaces. The wide operating voltage range plus nanoWatt sleep makes it a frequent choice for mains-powered and battery-backed products where standby current dominates the energy budget. When designing with this device, budget for ICD/ICSP header pads even on production boards to allow firmware updates and in-field debug; the ICSP pins (RB6/RB7) must be accessible. The 224-byte SRAM and 1.75KB Flash constrain firmware complexity, so design code accordingly or migrate to PIC16F88/PIC16F819 if more memory is needed. This page consolidates distributor pricing tiers, drop-in same-package alternatives from Microchip's PIC16 family, and PCB-level design notes that go beyond what the manufacturer datasheet alone offers, helping engineers shorten the selection cycle.

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PIC16F627AT-I/SO - 8-Bit 20MHz MCU 1.75KB Flash SOIC-18 | Microchip
PIC16F627AT-I/SO

PIC16F627AT-I/SO - 8-Bit 20MHz MCU 1.75KB Flash SOIC-18 | Microchip

The Microchip Technology PIC16F627AT-I/SO is an 8-bit Flash-based CMOS microcontroller from the PIC16F mid-range family, featuring a 20 MHz maximum clock speed, 1.75 KB of Flash program memory (1K x 14 words), 224 bytes of RAM, and 128 bytes of EEPROM data memory, housed in an 18-pin SOIC package. The "T" suffix denotes a Tape & Reel packaging variant, while "I" indicates the industrial temperature grade (-40C to +85C), and "SO" specifies the 18-pin Small Outline IC package. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), data memory (RAM), non-volatile data storage (EEPROM), and programmable I/O peripherals on one die. The PIC16F627A belongs to the PIC16F family within the broader mid-range PIC architecture hierarchy: PIC16F -> mid-range 8-bit MCU -> RISC microcontroller -> embedded controller. This taxonomy places it above simple digital logic but below 32-bit ARM Cortex-M parts in computational capability, making it ideal for cost-sensitive, deterministic, low-power applications. Key features include the nanoWatt power management technology offering multiple low-power sleep modes (down to 100 nA typical standby current), two analog comparators, a programmable voltage reference, one 16-bit capture/compare/PWM module, a USART for serial communication, and a 4 MHz internal RC oscillator that can reduce or eliminate external clock components. The device supports an operating voltage range of 3.3V to 5.5V and provides 16 digital I/O pins with high-current sink/source capability. Technically, the PIC16F627A executes most instructions in a single 200 ns instruction cycle at 20 MHz (4 MHz oscillator input, 4:1 PLL-equivalent internal division), with a 14-bit instruction word and 8-bit data path. The Harvard architecture separates program and data buses, eliminating fetch bottlenecks. The enhanced flash memory cell supports in-circuit serial programming (ICSP) via two pins (RB6/RB7), enabling field updates and end-of-line calibration without removing the device from the board. Typical applications include appliance control (washing machines, microwave ovens), industrial sensor interfaces, automotive body electronics, security and access control panels, low-cost remote controls, and battery-powered instrumentation. The internal oscillator and on-chip EEPROM reduce BOM cost in space-constrained designs. Design consideration: When migrating firmware between PIC16F627A and PIC16F628A/648A variants, verify the configuration word and address mapping because the larger-flash parts add memory-mapped registers at fixed offsets. Also note that the SOIC-18 footprint is 0.65 mm pin pitch - not compatible with the 2.54 mm DIP-18 footprint without PCB rework. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on a single manufacturer datasheet to accelerate sourcing and design decisions.

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PIC16F627AT-I/SS - 8-Bit 20MHz 1.75KB Flash MCU | Microchip | SSOP-20
PIC16F627AT-I/SS

PIC16F627AT-I/SS - 8-Bit 20MHz 1.75KB Flash MCU | Microchip | SSOP-20

The Microchip Technology PIC16F627AT-I/SS is an 8-bit CMOS Flash-based microcontroller from the PIC16 mid-range family, featuring a 20MHz CPU clock, 1.75KB (1K x 14) of Flash program memory, 224 bytes of SRAM, and 128 bytes of EEPROM in a 20-pin SSOP (5.30mm height, lead-free) package. It executes instructions in a 200ns instruction cycle, packs Microchip's powerful PIC RISC architecture, and offers 16 I/O pins with a 4.5V to 5.5V single-supply operating range. A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, volatile data memory, and programmable I/O peripherals. The PIC16 mid-range family occupies the middle of Microchip's 8-bit PIC portfolio - simpler than PIC24/dsPIC but more capable than PIC10/12 baseline devices, and is widely used in cost-sensitive embedded control. The PIC16F627A/AT family introduced nanoWatt Technology, providing multiple low-power modes (sleep, watchdog timer-based wake, internal RC oscillator) that drop supply current into the microamp range during idle intervals. Key features include an integrated 4MHz internal RC oscillator (eliminating external crystals for low-cost designs), a hardware USART for serial communications, a capture/compare/PWM module, two analog comparators with programmable references, and 128 bytes of EEPROM for non-volatile user data storage. The 35 single-word instruction RISC core enables code density comparable to larger 8-bit MCUs while fitting in the 1.75KB Flash budget. Architecturally, the PIC16F627A uses a 14-bit instruction word, Harvard architecture with separate program and data buses, and a 16-level hardware stack. The 'A' silicon revision adds the USART module and enhanced comparators versus the original PIC16F627. The 'T' suffix in PIC16F627AT indicates Tape and Reel packaging for high-volume assembly, while the 'I' indicates the industrial -40C to +85C operating temperature range. Typical applications include low-cost consumer appliances, automotive body electronics, security and alarm systems, remote controls, lighting ballasts, motor control auxiliary logic, and small-format sensor interface boards. The wide SSOP-20 footprint allows hand-soldering and prototyping alongside high-volume SMD assembly. When designing with this part, engineers should note that the PIC16F627A has been superseded by the PIC16F18444 in many new designs - identical pinout but more memory and peripherals. For new designs, the PIC16F18444-I/SS is recommended unless legacy code compatibility dictates the original 627A/AT. The internal oscillator eliminates two external pins but trades absolute frequency accuracy against BOM cost. This page synthesizes distributor pricing, drop-in same-package alternatives from the PIC16F628A/648A family, and practical design considerations not aggregated in a single datasheet view.

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