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PIC16F628AT-E/SS - 8-bit MCU 3.5KB Flash 20MHz SSOP-20
PIC16F628AT-E/SS

PIC16F628AT-E/SS - 8-bit MCU 3.5KB Flash 20MHz SSOP-20

The Microchip Technology PIC16F628AT-E/SS is a flash-based, 8-bit CMOS microcontroller from the PIC® 16F family, integrating 3.5 KB (2K x 14) of flash program memory, 224 bytes of SRAM, and 128 bytes of EEPROM data memory in a 20-pin SSOP package. The 'T' suffix denotes tape-and-reel packaging and the 'E' denotes the extended operating temperature range (-40 °C to +125 °C); it executes instructions at a 20 MHz clock rate with a 200 ns instruction cycle for deterministic real-time control. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, volatile data memory, and peripherals on one die. Within the broader taxonomy, the PIC16F628A sits under PIC16 mid-range family -> 8-bit PIC MCU -> microcontroller -> embedded processor -> semiconductor. The mid-range core uses a 14-bit instruction word with only 35 single-word instructions, making assembly and C programming accessible; its nanoWatt technology delivers dynamic and sleep power management modes that suit battery-powered nodes. Key features include an internal 4 MHz precision oscillator (selectable between 4 MHz and 48 kHz), two analog comparators with a programmable voltage reference, a USART for serial communication, a Capture/Compare/PWM (CCP) module, and a 16-bit timer/counter (TMR1) plus an 8-bit timer (TMR0/TMR2). The device also supports in-circuit serial programming (ICSP) for field upgrades and on-chip debug for in-system bring-up. Architecturally, the PIC16F628A uses a Harvard-style bus with separate program and data paths, allowing instruction fetch and data access in the same cycle. The CMOS process combined with nanoWatt sleep modes brings active current down to a few hundred microamperes at 4 MHz and sleep current below 1 µA, enabling years of operation from coin cells in duty-cycled sensing roles. Typical applications include consumer remote controls, appliance control panels, low-end sensor signal conditioning, hobby robotics, automotive body-electronics nodes (non-safety), and battery-operated IoT endpoints. The 11 usable I/O pins, on-chip comparator, and PWM capability also support simple closed-loop control such as fan-speed regulation, LED dimming, and brushed-DC motor drive. A key design consideration is supply voltage: this part operates from 4.5 V to 5.5 V. Engineers designing 3.3 V-only systems should migrate to the PIC16F182x or PIC16F188xx families rather than use level shifters. Always place a 0.1 µF decoupling capacitor within 5 mm of VDD, and reserve the MCLR pin for a proper reset network. This page synthesizes distributor pricing, cross-manufacturer drop-in alternatives, and engineering design notes that go beyond the manufacturer datasheet, giving procurement and design teams a single source of truth for sourcing PIC16F628AT-E/SS.

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PIC16F628AT-I/SO - 8-Bit 20MHz 3.5KB Flash MCU | Microchip
PIC16F628AT-I/SO

PIC16F628AT-I/SO - 8-Bit 20MHz 3.5KB Flash MCU | Microchip

The Microchip PIC16F628AT-I/SO is an 8-bit PIC RISC flash microcontroller delivering 20MHz CPU performance with 3.5KB (2K x 14) on-chip flash program memory in an 18-pin SOIC package. It operates from a 3.0V to 5.5V supply, integrates 224 bytes of RAM and 128 bytes of EEPROM data memory, and offers 16 digital I/O pins plus a nanoWatt power-managed peripheral set. An 8-bit PIC microcontroller (MCU) is a single-chip computer built around Microchip's RISC (Reduced Instruction Set Computer) Harvard architecture. It belongs to the microcontroller category, itself a sub-family of microprocessors, and sits within the embedded IC hierarchy as one of the most widely deployed low-cost control cores for consumer, industrial, and automotive subsystems. The 8-bit designation means the ALU and data bus are 8 bits wide; the 35 single-word instruction set keeps code density high and learning curves short. Key features include an internal 4MHz oscillator (with software-selectable 37kHz LF oscillator), two analog comparators, a capture/compare/PWM (CCP) module, USART for asynchronous serial, 10-bit timer resources, nanoWatt sleep modes that drop quiescent current below 1µA in real designs, and a hardware USART supporting RS-232/485 links. The 18-SOIC wide-body package measures approximately 11.7mm x 7.5mm with 1.27mm pitch. The architecture pairs a 14-bit instruction word with separate program and data buses, allowing simultaneous fetch and access. Flash in-circuit serial programming (ICSP) enables firmware updates in the field, while the wide operating range makes it tolerant of unregulated supplies. Code protection, brown-out reset, and a watchdog timer reinforce reliability in unattended applications. Typical applications include hobby and educational boards, low-volume automation controllers, LED drivers, automotive accessories (with appropriate Q-grade variants), sensor signal conditioning, IR remote receivers, small appliance control, and battery-powered metering. The 16 I/O easily drive character LCDs or multiple relays. When designing, derate maximum load per pin to 20mA source/sink and 200mA per VDD/VSS to stay within absolute limits, and use the internal oscillator to minimize BOM. Compare pin count and ADC requirements against the larger PIC16F88A or PIC18F family for upgrade paths. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC16F628T-04/SO - 4MHz 8-Bit Flash MCU 3.5KB SOIC-18
PIC16F628T-04/SO

PIC16F628T-04/SO - 4MHz 8-Bit Flash MCU 3.5KB SOIC-18

The Microchip Technology PIC16F628T-04/SO is an 8-bit PIC16 family flash-based CMOS microcontroller built on Microchip's enhanced mid-range architecture and packaged in a 18-pin SOIC (SO) wide-body tape-and-reel format. It runs at 4 MHz with a 200 ns instruction cycle, integrates 3.5 KB (2K x 14) of self-programmable flash program memory, 224 bytes of RAM, and 128 bytes of EEPROM data memory, and exposes 16 digital I/O lines across PORTA and PORTB. The supply voltage range covers 3.0 V to 5.5 V for F-version parts, supporting both 3.3 V and 5 V system designs. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory and programmable I/O peripherals; the PIC16F628 family belongs to Microchip's 8-bit PIC® RISC architecture family, which traces its lineage from the PIC1650 and remains one of the longest-deployed 8-bit MCU cores in industrial, automotive and consumer electronics. The PIC16F628 series was the first mid-range PIC family to migrate from EPROM/ROM to flash, enabling in-circuit reprogramming via ICSP. The hierarchy: 8-bit MCU -> PIC® RISC MCU -> PIC16F mid-range family -> PIC16F628 sub-family. Key features include an internal 4 MHz RC oscillator with calibration, power-on reset (POR), power-up timer (PWRT), oscillator start-up timer (OST), brown-out detect (BOD), watchdog timer (WDT) with its own on-chip RC oscillator, and programmable weak pull-ups on PORTB. Two analog comparators with programmable on-chip voltage reference and a capture/compare/PWM (CCP) peripheral extend its analog/mixed-signal capability beyond pure digital I/O. The -04 speed grade (4 MHz) distinguishes it from the -20 (20 MHz) sibling in the same silicon. The enhanced mid-range core adds hardware interrupt context saving, a deeper hardware stack (8 levels), and an extended instruction set with 35 single-word instructions, enabling compact C and assembly firmware. ICSP (in-circuit serial programming) and ICD (in-circuit debugging) via RB6/RB7 free the I/O pins for end-application use rather than burning them as programming interfaces. Internal EEPROM permits 1 M erase/write cycles, supporting data logging and user-configurable parameter storage without external memory. Typical applications include automotive and industrial sensor interfaces, low-power remote control transmitters, appliance controllers, small-form-factor motor control loops, simple protocol bridges (UART/I2C firmware conversion), and battery-powered instrumentation where the wide 3.0-5.5 V supply range and internal oscillator simplify BOM. The part remains a benchmark for hobbyist, education and legacy drop-in designs that migrate from PIC16C84/16F84 to a higher-memory, more feature-rich flash MCU. When designing with this MCU, note that the -04 grade limits operation to 4 MHz (DC-20 ns); design firmware timing budgets around the 200 ns instruction execution, and account for the SOIC-18 thermal envelope when used in sealed enclosures. Microchip's MPLAB X IDE and the PICkit 5 in-circuit debugger support this device for development and production programming.

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PIC16F628T-04/SS - 8-Bit 4MHz PIC MCU 3.5KB Flash SSOP-20 | Microchip
PIC16F628T-04/SS

PIC16F628T-04/SS - 8-Bit 4MHz PIC MCU 3.5KB Flash SSOP-20 | Microchip

The Microchip Technology PIC16F628T-04/SS is an 8-bit flash-based CMOS microcontroller (MCU) from the PIC16F family, featuring a 4 MHz internal oscillator equivalent, 3.5 KB of Flash program memory (2K x 14 words), 224 bytes of RAM, and 128 bytes of EEPROM, all housed in a 20-pin SSOP package supplied on tape-and-reel. The part is rated for 16 I/O lines with high current sink/source capability for direct LED drive, an analog comparator module with programmable on-chip voltage reference, two 8-bit timers plus one 16-bit timer, a 10-bit PWM module, a USART with on-chip baud-rate generator, and a programmable brown-out detector (BOD) with power-on reset and power-up timer for robust startup behavior. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, peripherals, and interrupt logic into one IC, enabling compact embedded control. The PIC16F628 belongs to the enhanced mid-range PIC16 architecture, sits inside the PIC microcontroller product line, and ultimately within the broader category of microcontrollers and embedded processors. It is widely used as a small-footprint, deterministic 8-bit controller for cost-sensitive designs. Key features include nanoWatt technology for low-power operation, an internal 4 MHz RC oscillator with software calibration, a Watchdog Timer with its own on-chip RC oscillator, multiplexed MCLR pin, programmable weak pull-ups on PORTB, and an in-circuit serial programming (ICSP) interface that allows firmware updates after PCB assembly. The device operates across 3.0 V to 5.5 V, supports DC to 20 MHz external clock operation, and is fully static. The PIC16F628T-04/SS uses a Harvard RISC architecture with a single accumulator and a 14-bit instruction word, providing deterministic interrupt response and instruction timing. Its CMOS process technology gives low quiescent current and high code-density, while the SSOP-20 package offers a small footprint for compact PCB designs. Compared with the PIC16F84, it adds a USART, two comparators with a programmable VREF, PWM hardware, and EEPROM data memory. Typical applications include appliance controls, hobby and educational projects, sensor signal conditioning, low-end motor and lighting controllers, and battery-powered instrumentation. The combination of internal oscillator, brown-out reset, and analog comparators allows designers to reduce external components and shrink BOM cost. The part is also a strong fit for migrating legacy PIC16F84A designs where additional peripherals are required. When designing with this device, note that the "-04" suffix denotes the 4 MHz rated version; designers requiring higher throughput should consider the PIC16F628-20 variant (20 MHz) or the pin-compatible PIC16F628A family with enhanced peripherals. Ensure decoupling (100 nF plus bulk) is placed close to VDD/SS, and respect the in-circuit programming pinout so that no production components block ICSP access. This page synthesizes verified distributor pricing, drop-in alternatives drawn from the same PIC16F family, and practical design notes not consolidated in the manufacturer datasheet, delivering the cross-reference and trade-off analysis engineers actually need before placing an order.

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PIC16F628T-04E/SS - 4MHz 8-Bit FLASH MCU, 3.5KB | Microchip
PIC16F628T-04E/SS

PIC16F628T-04E/SS - 4MHz 8-Bit FLASH MCU, 3.5KB | Microchip

The Microchip Technology PIC16F628T-04E/SS is an 8-bit flash-based CMOS microcontroller belonging to the PIC16F family, featuring a RISC architecture with 35 single-word instructions and a 4 MHz internal oscillator frequency rating. The device integrates 3.5 KB (2K x 14) of flash program memory, 224 bytes of SRAM data memory, and 128 bytes of EEPROM, packaged in a 20-pin SSOP with a body width of 5.30 mm. It supports 16 I/O pins with individual direction control, each capable of high current sink/source for direct LED drive. A microcontroller (MCU) is a single-chip computer that contains a processor core, memory, and programmable input/output peripherals. PIC microcontrollers from Microchip are widely used in embedded applications because of their compact instruction set, low power consumption, and broad peripheral integration. The PIC16F628 family sits in the mid-range PIC lineup, balancing cost, code density, and on-chip resources for industrial and consumer designs. Key features include two analog comparators with a programmable on-chip voltage reference, a Capture/Compare/PWM (CCP) module, a USART for asynchronous serial communication, and a Watchdog Timer with its own on-chip RC oscillator. Brown-out Detect (BOD), Power-on Reset (POR), Power-up Timer (PWRT), and Oscillator Start-up Timer (OST) are integrated for robust operation. The supply voltage range is 2.0 V to 5.5 V (extended) depending on the frequency variant. Architecturally, the PIC16F628 uses a Harvard bus with separate program and data paths, a 14-bit instruction word, and a two-stage pipeline. Internal peripherals are accessed via a memory-mapped register file. The 'T' suffix indicates tape-and-reel packaging for high-volume assembly, and the 'E' code designates the extended temperature grade of -40 °C to +125 °C. 'SS' refers to the SSOP-20 package. Typical applications include HVAC control, appliance interfaces, automotive interior subsystems, security and alarm panels, low-end motor control, and battery-powered sensor nodes. The combination of internal oscillator, comparators, USART, and EEPROM in a 20-pin SSOP makes the device a strong fit for compact, cost-sensitive designs that require a reliable 8-bit core. When designing with this part, ensure that the MCLR pin is properly handled for in-circuit serial programming. Decoupling capacitors of 0.1 µF should be placed as close as possible to VDD, and the oscillator configuration bits must be set correctly for the chosen clock mode. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC16F628T-04I/SO - 4MHz 3.5KB Flash 8-bit MCU | Microchip
PIC16F628T-04I/SO

PIC16F628T-04I/SO - 4MHz 3.5KB Flash 8-bit MCU | Microchip

The Microchip Technology PIC16F628T-04I/SO is a flash-based 8-bit CMOS microcontroller built on the PIC16 mid-range architecture, packaged in an 18-pin SOIC (SO) wide-body tape-and-reel format. It integrates 3.5KB (2K x 14) of flash program memory, 224 bytes of RAM, and 128 bytes of EEPROM, with a maximum CPU clock rate of 4 MHz (the "-04" speed grade) or up to 20 MHz for the -20 variant. The -04I suffix denotes the industrial temperature grade (-40C to +85C). According to the verified distributor listings, the part delivers 16 I/O pins with individual direction control, high-current sink/source drivers capable of direct LED drive, two on-chip analog comparators with programmable voltage reference, and a multiplexed MCLR reset pin. A PIC (Peripheral Interface Controller) microcontroller is a Harvard-architecture RISC MCU whose program and data buses are separate, allowing a single instruction cycle per fetch. PIC16 mid-range devices such as the PIC16F628 belong to Microchip's flagship 8-bit family, which is the immediate successor to the PIC12 baseline family and a smaller-footprint alternative to the PIC18 enhanced family. Within the broader semiconductor hierarchy, the PIC16F628 sits in the Microcontrollers category under Integrated Circuits. Key features include Power-on Reset (POR), Power-up Timer (PWRT), Oscillator Start-up Timer (OST), Brown-out Detect (BOD), Watchdog Timer (WDT) with its own on-chip RC oscillator, and programmable weak pull-ups on PORTB. The capture/compare/PWM (CCP) module, USART, and internal 4 MHz oscillator give the part enough peripherals to replace older PIC16C62x OTP designs with a single flash-erasable drop-in. The PIC16F628A revision supersedes the PIC16F628 with twice the program memory (3.5KB vs 1.75KB), 224 bytes of RAM, and an internal comparator module, while preserving pin compatibility in SO, SS, and P packages. The "T" suffix in the orderable part number indicates tape-and-reel packing, and "/SO" specifies the 18-pin wide-body SOIC. Typical applications include appliance control, hobby/robotics boards, low-end sensor front-ends, LED lighting sequencers, and replacement upgrades of legacy PIC16C-series designs. The on-chip EEPROM and internal oscillator eliminate two external components that would otherwise be required by older PICs. When designing with this part, ensure the input voltage stays within 3.0V to 5.5V and choose the -04 speed grade (4 MHz) versus the -20 grade (20 MHz) based on firmware timing requirements. The 18-pin SOIC wide footprint requires standard SOIC-18 land pattern - the part is not pin-compatible with 14-pin SO PIC16F84 designs. This page synthesizes distributor pricing from DigiKey/Mouser, drop-in alternatives within the PIC16F62x family, and practical design notes that go beyond the Microchip datasheet. All pricing is listed as of 2026-09-21.

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PIC16F628T-04I/SS - 8-Bit Flash MCU, 4MHz, 3.5KB | Microchip
PIC16F628T-04I/SS

PIC16F628T-04I/SS - 8-Bit Flash MCU, 4MHz, 3.5KB | Microchip

The Microchip PIC16F628T-04I/SS is a flash-based 8-bit CMOS microcontroller from the PIC16F62X family, packaged in a 20-pin SSOP (5.30 mm body width) and qualified to the industrial -40C to +85C temperature range. It integrates 3.5 KB of flash program memory (2K x 14), 224 bytes of RAM, and 128 bytes of EEPROM, runs at up to 4 MHz instruction rate from a 3.0 V to 5.5 V supply, and offers 16 bidirectional I/O pins with high current sink/source capability for direct LED drive. Two on-chip analog comparators with a programmable voltage reference and internal USART, CCP, and 8/16-bit timer peripherals round out a feature set designed for legacy through mid-range embedded designs. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, I/O peripherals, and interrupt logic on one die. The PIC16F62X family uses Microchip's enhanced mid-range 8-bit RISC core with a 14-bit instruction word, sitting in the product hierarchy of microcontroller -> 8-bit MCU -> PIC16 family -> PIC16F6XX flash series -> PIC16F62X. This category serves cost-sensitive and deterministic real-time control tasks such as appliance control, sensor interfacing, and battery-powered logic replacement. Key features include an internal 4 MHz oscillator with calibration, dual analog comparators with programmable VREF, a hardware USART for asynchronous serial communication, Capture/Compare/PWM (CCP) modules, power-on reset (POR), brown-out detect (BOD), a watchdog timer with its own RC oscillator, programmable weak pull-ups on PORTB, and in-circuit serial programming (ICSP) via the multiplexed MCLR pin. These features minimize external component count for small-form-factor designs. The architecture combines a Harvard bus, 35 single-cycle instructions, and direct/indirect addressing modes with peripheral-rich silicon. Compared to the older 16C/16F baseline, the PIC16F628A generation adds internal oscillator calibration and improved flash endurance, making it suitable for low-volume and field-upgradable designs. Typical applications include appliance and white-goods control boards, sensor signal conditioning front-ends, LED lighting controllers, low-end motor drivers (via CCP/PWM), hobby and educational hardware (Arduino predecessor designs), battery chargers, and small industrial monitoring nodes where deterministic 8-bit performance is sufficient. When designing with this device, budget the oscillator start-up time and BOD reset behavior in power-sequenced systems, and ensure decoupling on VDD/VSS is placed within 5 mm of the IC pins. For new designs, evaluate the pin-compatible PIC16F628A-I/SS or PIC16F88 upgrades for enhanced peripherals, otherwise the PIC16F628T-04I/SS remains a cost-optimized choice. This page synthesizes distributor pricing, cross-reference candidates, and practical design notes not found in the manufacturer datasheet alone.

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PIC16F628T-20/SO - 20MHz 8-Bit Flash MCU 3.5KB | Microchip
PIC16F628T-20/SO

PIC16F628T-20/SO - 20MHz 8-Bit Flash MCU 3.5KB | Microchip

The Microchip Technology PIC16F628T-20/SO is an 8-bit RISC flash-based microcontroller with 3.5KB (2K x 14) of program memory, 224 bytes of RAM, and 128 bytes of EEPROM, housed in an 18-pin SOIC (W) package supplied on Tape and Reel. It operates up to 20 MHz instruction cycle, supports 16 I/O pins with individual direction control, and integrates two analog comparators with a programmable on-chip voltage reference (VREF). The "T" suffix denotes Tape & Reel packaging, while "/SO" specifies the 18-lead Small Outline IC package. A PIC microcontroller (peripheral interface controller) is a family of 8-bit, 16-bit, and 32-bit RISC microcontrollers built around a Harvard architecture with separate program and data buses. The PIC16F628 belongs to the mid-range PIC16 family, which uses a 14-bit instruction word optimized for deterministic, single-cycle execution. PIC MCUs sit within the broader taxonomy of embedded microcontrollers, sitting beneath ARM Cortex-M and AVR families but offering lower cost, simpler toolchains, and wide availability for cost-sensitive embedded designs. Key differentiating specifications include 3.3V/5V dual-voltage operation, hardware USART for serial communication, 16 I/O pins with 25 mA sink/source capability for direct LED drive, capture/compare/PWM (CCP) module, and nanoWatt power management for low-power sleep modes. The integrated VREF module eliminates external reference components in comparator-based designs. The 18-pin SOIC package provides drop-in compatibility with the broader PIC16F62X and PIC16F628A family while enabling surface-mount manufacturing. Typical applications include consumer appliance control, automotive body electronics, lighting controllers, sensor signal conditioning, and battery-powered remote controls. Industrial uses span small motor control loops, security alarm panels, and HVAC damper actuators. The combination of low-cost, on-chip EEPROM, USART, and analog comparators makes it well suited to designs that previously required multiple discrete ICs. When designing with this part, place a 100 nF decoupling capacitor within 5 mm of VDD and tie the MCLR pin to VDD through a 10 kohm resistor to ensure clean reset behavior. Verify the oscillator configuration bits match your crystal or resonator choice; using the internal 4 MHz oscillator eliminates two external pins.

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PIC16F628T-20E/SO - 8-Bit 20MHz 3.5KB Flash MCU | Microchip | 18-SOIC
PIC16F628T-20E/SO

PIC16F628T-20E/SO - 8-Bit 20MHz 3.5KB Flash MCU | Microchip | 18-SOIC

The Microchip Technology PIC16F628T-20E/SO is an 8-bit PIC microcontroller running at 20 MHz, integrating 3.5 KB (2K x 14) of Flash program memory, 224 bytes of RAM and 128 bytes of EEPROM in an 18-pin SOIC package. It features 16 I/O pins, two analog comparators with a programmable on-chip voltage reference, a Capture/Compare/PWM module, a USART, and a 16-level deep hardware stack. A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory, RAM, and peripheral interfaces such as timers, communications, and analog blocks. Within the broader power-management and embedded hierarchy, an MCU sits below microprocessors and provides deterministic real-time control for embedded systems. The PIC16F family specifically belongs to the mid-range 8-bit PIC architecture, balancing code density and peripheral integration for cost-sensitive applications. Key features include an enhanced Flash program memory rated for 100,000 erase/write cycles, internal 4 MHz and 37 kHz RC oscillators, an analog comparator with programmable hysteresis, and power-managed modes such as Sleep, Idle, and a low-power Timer1 oscillator. The device operates from 3.0V to 5.5V across the -40C to +125C industrial temperature range, making it suitable for harsh environments. It supports in-circuit serial programming (ICSP) via the RB6/RB7 pins and the MCLR reset pin. Architecturally, the PIC16F628T-20E/SO uses a 14-bit instruction word with an 8-level hardware stack and 35 single-word instructions, allowing compact code generation. The integrated peripherals - including the USART, CCP module, comparators and 16 I/O pins - remove the need for external logic in typical control designs. Typical applications include industrial automation controllers, consumer appliances, sensor signal conditioning, automotive body electronics, LED lighting controllers, and hobby/educational embedded projects. The PIC16F628 is one of the most widely documented and supported mid-range PIC microcontrollers for entry-level through intermediate designs. A key design consideration: at 20 MHz the device draws approximately 10 mA active current, so always include decoupling capacitors (100 nF + 10 uF) close to VDD/VSS, and reserve the MCLR pin for proper in-circuit serial programming access. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC16F628T-20E/SS - 8-bit Flash MCU, 20MHz, 3.5KB | Microchip
PIC16F628T-20E/SS

PIC16F628T-20E/SS - 8-bit Flash MCU, 20MHz, 3.5KB | Microchip

The Microchip Technology PIC16F628T-20E/SS is a flash-based 8-bit CMOS microcontroller from the PIC16 mid-range family, delivering 20 MHz maximum clock speed from a Harvard RISC architecture in a 20-pin SSOP (SS) surface-mount package. The device integrates 3.5 KB of Flash program memory, 224 bytes of SRAM, and 128 bytes of EEPROM data memory, providing a self-contained compute platform for embedded control designs. The /E temperature grade indicates an extended operating range suitable for industrial environments. What is an 8-bit flash microcontroller? An 8-bit flash microcontroller is a small, single-chip computer built around an 8-bit data path, on-chip flash program memory, RAM, and a rich set of peripherals. Within the broader semiconductor taxonomy, the PIC16F628 belongs to microcontrollers (MCUs) → embedded controllers → microprocessors and controllers → semiconductors. Its RISC-based mid-range core executes most instructions in one oscillator cycle, giving roughly 200 ns instruction time at 20 MHz — a strong performance figure for an entry-level industrial MCU. Key features of the PIC16F628T-20E/SS include an integrated 20 MHz internal/external oscillator, an analog comparator module, a Capture/Compare/PWM (CCP) module, a USART for serial communication, and 11 digital I/O pins multiplexed across PORTA and PORTB. On-chip peripherals such as 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 RC oscillator give the device robust autonomous operation without external supervisory components. The PIC16F628 architecture uses a 14-bit instruction word with 35 single-word instructions, simplifying code generation and reducing firmware footprint. The Harvard bus separates program and data memories, allowing instruction fetch and operand read to occur in the same cycle. The CMOS process with nanoWatt technology offers very low power consumption across sleep and active modes. Typical applications include industrial control systems, appliance controls, automotive body electronics, sensor interfaces, low-end remote controls, and hobbyist/maker projects where a small-footprint 8-bit MCU with onboard EEPROM and a USART simplifies the bill of materials. The 20-pin SSOP package and wide 4.5–5.5 V supply range also suit battery-backed instrumentation. When designing with this part, ensure the oscillator configuration bits (Fosc) are programmed to match the chosen clock source, since the PIC16F628 supports internal 4 MHz, internal 37 kHz, and external crystal/resonator modes. Place decoupling capacitors within 5 mm of VDD and use the internal weak pull-ups on PORTB where possible to minimize external component count. This page synthesizes distributor pricing, drop-in alternatives, and engineering design notes not found in the manufacturer datasheet alone, providing practical decision support for sourcing and second-source qualification.

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PIC16F628T-20I/SS - 8-Bit 20MHz 3.5KB Flash MCU | Microchip
PIC16F628T-20I/SS

PIC16F628T-20I/SS - 8-Bit 20MHz 3.5KB Flash MCU | Microchip

The Microchip Technology PIC16F628T-20I/SS is a flash-based 8-bit CMOS microcontroller from the mid-range PIC16F family, featuring a 3.5KB (2K x 14) flash program memory, 224 bytes of RAM, 128 bytes of EEPROM, and 16 I/O pins in a 20-pin SSOP package. It operates at up to 20 MHz instruction-clock speed (200 ns instruction cycle) across a 3.0V to 5.5V supply voltage range, with an industrial-grade operating temperature of -40 °C to +85 °C. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (flash or ROM), volatile data memory (RAM), EEPROM for persistent user data, and configurable digital peripherals. PIC16F-series MCUs use Microchip's enhanced mid-range RISC core with only 35 single-word instructions, so almost every instruction executes in one instruction cycle. The PIC16F628T-20I/SS sits within the hypernym hierarchy: 8-bit microcontroller -> PIC16 mid-range MCU -> PIC16F62x family -> flash-based PIC MCU -> Microchip PIC microcontroller portfolio. Key features of the PIC16F628T-20I/SS include: an integrated 4 MHz internal oscillator (no external crystal required for many designs); two analog comparators with a programmable on-chip voltage reference; a USART module for asynchronous/synchronous serial communication; a 16-bit capture/compare/PWM module and an 8-bit timer/counter; flash program memory with 100K endurance cycles; and brown-out reset (BOR), power-on reset (POR), power-up timer (PWRT), oscillator start-up timer (OST), and watchdog timer (WDT) with a dedicated on-chip RC oscillator. The architecture uses a Harvard bus (separate program and data memory paths), allowing instruction fetch and operand read to occur in the same cycle. CMOS process technology gives the part its low-power characteristics, including very low power-down current typical of PIC mid-range parts and several oscillator operating modes (internal RC, external RC, crystal, and LP modes) selected by configuration fuses. Typical applications include low-cost embedded control nodes (appliance controllers, sensor hubs, simple motor/solenoid drivers), automotive body-electronics subsystems (interior lighting, fan control, sensor interfaces), hobby and education boards, replacement of legacy PIC16F84/PIC16F627 designs requiring more RAM and EEPROM, and battery-powered instrumentation where the internal oscillator and brown-out reset are advantageous. When designing with this part, use the 20-pin SSOP land pattern and respect the I/O current-source/-sink limits when driving LEDs directly. MPLAB X IDE and MPLAB XC8 (or legacy Hi-Tech PICC) are the recommended toolchains, and the PICkit 5 in-circuit debugger supports the PIC16F62x family for production-ready programming. This page synthesizes distributor pricing, drop-in pin-compatible alternatives, comparison parameters, and practical design notes that are not found on the manufacturer datasheet alone.

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PIC16F630-E/ML - 8-bit Flash MCU, 1.75KB, 12 I/O, QFN-16 | Microchip
PIC16F630-E/ML

PIC16F630-E/ML - 8-bit Flash MCU, 1.75KB, 12 I/O, QFN-16 | Microchip

The Microchip PIC16F630-E/ML is a CMOS Flash-based 8-bit PIC microcontroller housed in a 16-pin QFN (ML) package with extended temperature range (-40C to +125C). It integrates 1.75 KB of Flash program memory, 64 bytes of SRAM, and 128 bytes of EEPROM, delivering 200 ns instruction execution with only 35 single-word instructions for easy programming. The device features 12 digital I/O pins, one analog comparator, and an internal 4/8/20 MHz configurable oscillator. A microcontroller (MCU) is a single-chip computer containing a processor core, non-volatile program memory (Flash/ROM), volatile working memory (RAM), and configurable peripherals on one integrated circuit. PIC microcontrollers use a RISC-based Harvard architecture, separating program and data buses to allow simultaneous instruction fetch and operand access. The PIC16F630 belongs to the mid-range PIC16 family, the industry's most widely deployed 8-bit MCU lineage, and represents the entry point for cost-sensitive, low-pin-count embedded control. Within the power-management hierarchy, it sits at the edge node, sensing signals and driving actuators in battery-powered and isolated systems. Key features include 128 bytes of EEPROM for non-volatile parameter storage, nanoWatt technology for low-power sleep modes (down to 100 nA typical standby), a programmable watchdog timer with on-chip oscillator, in-circuit serial programming (ICSP) via two pins, and wide operating voltage from 2.0 V to 5.5 V. The integrated comparator supports up to four selectable input configurations and can wake the device from sleep. The device uses a 14-bit instruction word, an 8-bit data path, and a two-stage pipeline, providing deterministic interrupt latency. The internal oscillator is factory calibrated to ±1% across the commercial temperature range, eliminating the need for an external crystal in many cost-sensitive designs and reducing BOM count to a minimum of one decoupling capacitor and one bulk cap. Typical applications include battery-powered sensor nodes, automotive body controllers, white-goods user-interface boards, security keypads, smoke and CO detectors, and remote-control transmitters. The wide voltage range also enables direct operation from a single 3 V coin cell or two AA cells. When designing with this device, ensure the ICSPDAT and ICSPCLK pins are reserved for in-circuit programming and not bonded to high-impedance loads without a buffer. The internal calibrated oscillator accuracy is sufficient for UART at 9600 baud but not for higher baud rates or USB timing. This page synthesizes distributor pricing as of 2026-09-21, drop-in pin-compatible alternatives in the same QFN-16 package, and practical design notes not found in the bare manufacturer datasheet, enabling fast sourcing decisions for engineers.

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PIC16F630-E/P - 8-bit Flash MCU, 1.75KB, 20MHz, 14-PDIP | Microchip
PIC16F630-E/P

PIC16F630-E/P - 8-bit Flash MCU, 1.75KB, 20MHz, 14-PDIP | Microchip

The Microchip PIC16F630-E/P is a 14-pin PDIP Flash-based 8-bit CMOS microcontroller built on Microchip's enhanced mid-range PIC16 core, featuring 1.75KB (1K x 14) of Flash program memory, 64 bytes of SRAM, 128 bytes of EEPROM, and 12 digital I/O pins operating at up to 20MHz instruction clock. It belongs to the PIC16F630/676 family, where the PIC16F630 omits the 10-bit ADC present on the PIC16F676, and instead adds one analog comparator plus nanoWatt power management. Background Knowledge: A microcontroller (MCU) is a single-chip computer containing a CPU, program memory (Flash/ROM), data memory (RAM/EEPROM), and configurable peripherals such as timers, comparators, ADC, and communication modules. The PIC16 mid-range family uses a 14-bit instruction word RISC architecture with 35 single-word instructions, executing one instruction per instruction cycle (200ns at 20MHz), which simplifies deterministic real-time control. Within the broader taxonomy, PIC16F630 sits in the 8-bit MCU class -> general-purpose MCU -> microcontroller -> embedded computing -> semiconductor. Key differentiating features include: ultra-low-power nanoWatt technology with sleep currents as low as 100nA, integrated 4MHz internal oscillator (selectable via configuration bits), one analog comparator with programmable reference, 8 MHz / 32 kHz oscillator options, in-circuit serial programming (ICSP) via two pins, and a wide 2.0V to 5.5V supply range that supports both 3.3V and 5V systems. The PIC16F630 also provides a 10-bit prescaler on Timer0, an 8-bit prescaler on Timer2, and a watchdog timer with its own on-chip low-power oscillator for fail-safe operation. Technical depth: the device operates from -40C to +125C (extended temp, hence the '-E' suffix), supports two oscillator modes (internal 4MHz RC or external crystal/HS), and implements the standard PIC mid-range reset/interrupt/branching model with 8 hardware registers. Code protection, brown-out reset (BOR), and power-on reset (POR) options are mask-selectable via configuration words. The 14-pin PDIP package is 0.300 inch wide, through-hole, lead-free, plastic, and compatible with standard 14-pin DIP sockets, ICSP programming clips, and breadboards, which makes it a popular choice for prototyping and legacy industrial equipment. Typical applications include consumer remote controls, battery-powered sensor nodes, automotive interior lighting, simple fan/relay controllers, low-end smoke detectors, and white-goods user-interface boards. The PIC16F630 also fits HVAC thermostats, small appliance controls, and handheld measurement instruments where its tiny footprint, low cost, and 100nA sleep current extend battery life. Design consideration: when migrating from PIC16F630 to PIC16F676, the only meaningful change is the addition of a 10-bit ADC channel; otherwise the die and pinout are identical. Engineers should always fit the smaller PIC12F-series alternative if fewer I/O are required. This page synthesizes Microchip's official datasheet, current distributor pricing, true drop-in alternatives, and design notes that go beyond the manufacturer's marketing collateral to help engineers select, source, and validate the PIC16F630-E/P for production.

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PIC16F630-E/SL - 8-Bit MCU, 1.75KB Flash, 20MHz, 14-SOIC | Microchip
PIC16F630-E/SL

PIC16F630-E/SL - 8-Bit MCU, 1.75KB Flash, 20MHz, 14-SOIC | Microchip

The Microchip Technology PIC16F630-E/SL is a 20 MHz 8-bit Flash microcontroller from the PIC16 family, delivering 1.75 KB (1K x 14) of program memory, 64 bytes of RAM, and 128 bytes of EEPROM in a 14-pin SOIC package. The part features 12 I/O pins, one comparator, a 4.5V to 5.5V supply range, and operates over the extended -40C to +125C industrial temperature range. Its RISC-style 35-instruction set executes every instruction in a single 200 ns cycle, giving the device high deterministic throughput per MHz for small embedded tasks. A PIC microcontroller (Programmable Interrupt Controller, or more accurately Peripheral Interface Controller) is a single-chip computer that integrates a CPU core, non-volatile program memory, RAM, peripherals, and I/O onto a single CMOS die. PIC MCUs sit in the 8-bit microcomputer hierarchy below 16-bit and 32-bit parts and are commonly used where deterministic timing, ultra-low power, and small pin-count packages dominate the design trade-offs. Key features include 1.75 KB self-programmable Flash, 64 bytes SRAM, 128 bytes EEPROM, an internal 4 MHz RC oscillator plus an external oscillator option, a precision 10-bit ADC-less architecture (this device has no ADC), one analog comparator with software-controlled reference, and multiple power-managed sleep modes for battery-aware designs. Brown-out Reset (BOR) and Power-on Reset (POR) protect against brown-out events during unstable supply ramps. The PIC16F630 implements Microchip's enhanced mid-range 14-bit instruction architecture with a two-stage pipeline, a 16-level hardware stack, and direct/indirect addressing modes. The device supports in-circuit serial programming (ICSP) via two pins, allowing firmware updates on assembled boards without removing the MCU. Typical applications include battery-powered sensor nodes, simple motor control, white-goods user interfaces, and standalone logic replacement in industrial appliances. The 14-SOIC footprint makes hand-prototyping and rework straightforward for engineering prototypes. When designing with this device, note that its 4.5V to 5.5V supply range rules out 3.3V-only systems; consider the PIC16F630-I/SL (industrial -40C to +85C) or the PIC16F676 (with 10-bit ADC) for lower-voltage or analog-input designs on the same footprint. Always connect the MCLR pin through the recommended pull-up network to avoid spurious resets. This page synthesizes distributor pricing, drop-in alternative MPNs, and practical design notes - engineering content that goes beyond the manufacturer datasheet by providing same-family drop-in guidance and quantified comparison data.

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PIC16F630-E/ST - 8-Bit MCU, 1.75KB Flash, 20MHz, TSSOP-14 | Microchip
PIC16F630-E/ST

PIC16F630-E/ST - 8-Bit MCU, 1.75KB Flash, 20MHz, TSSOP-14 | Microchip

The Microchip Technology PIC16F630-E/ST is a 14-pin Flash-based 8-bit CMOS microcontroller from the PIC16F family, featuring 1.75 KB of Flash program memory, 64 bytes of SRAM, and 128 bytes of EEPROM in a TSSOP-14 (ST) surface-mount package. It executes instructions in a 200 ns instruction cycle at 20 MHz clock speed, supports 11 digital I/O pins, one analog comparator, and operates across an extended industrial temperature range of -40C to +125C. The supply voltage range is 2.0 V to 5.5 V, making it suitable for both 3.3 V and 5 V designs. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and peripherals around an 8-bit data path, executing one byte per instruction cycle. Within the hierarchy MCU -> microcontroller -> embedded controller -> semiconductor, the PIC16F630 belongs to the mid-range PIC16 family, which sits between baseline (PIC10/12/14) and enhanced mid-range (PIC16F1xxx) cores. This positioning makes it ideal for cost-sensitive, deterministic control tasks rather than complex protocol stacks or graphics processing. Key features include nanoWatt power management for low-power sleep modes (typical standby current below 1 uA), an internal 4 MHz oscillator (calibrated to +/-1%), a precision 10-bit ADC emulation via the comparator, and an 8-bit timer/counter (TMR0) plus a watchdog timer. The device supports in-circuit serial programming (ICSP) via two pins, enabling field firmware updates without removing the part from the board. Architecturally, the PIC16F630 uses a Harvard RISC core with 35 single-word instructions, separate program and data buses, and a hardware stack that supports up to 8 subroutine levels. This RISC design yields deterministic instruction timing, which is critical for real-time control loops in motor, lighting, and sensor applications where jitter cannot be tolerated. Typical applications include consumer appliance control, sensor signal conditioning, LED lighting drivers, remote-control transmitters, battery-powered monitoring nodes, and simple logic-replacement glue logic on mixed-signal boards. Its 14-pin footprint and 11 I/O lines balance capability with PCB real estate, making it a workhorse for low-pin-count embedded designs. When designing with this device, place a 0.1 uF decoupling capacitor within 5 mm of VDD and tie the MCLR pin to VDD through a 10 kohm resistor unless an external reset is needed. Avoid leaving unused I/O pins floating - configure them as outputs to minimize supply-current creep. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that are not consolidated on a single manufacturer or distributor page, providing engineers with a one-stop reference for selection, sourcing, and PCB implementation.

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PIC16F630-I/ML - 8-Bit 20MHz MCU, 1.75KB Flash, QFN-16 | Microchip
PIC16F630-I/ML

PIC16F630-I/ML - 8-Bit 20MHz MCU, 1.75KB Flash, QFN-16 | Microchip

The Microchip Technology PIC16F630-I/ML is a CMOS Flash-based 8-bit PIC microcontroller delivering 20 MHz (200 ns) instruction execution, 1.75 KB (1K x 14) of Flash program memory, 64 bytes of SRAM, and 128 bytes of EEPROM, all integrated in a 16-pin QFN (4x4 mm) exposed-pad package. The PIC16F630-I/ML provides 12 general-purpose I/O pins, 1 analog comparator, and a wide 2.0 V to 5.5 V operating voltage range that supports battery-powered and industrial systems. An 8-bit microcontroller (MCU) is a small, self-contained computer-on-a-chip built around an 8-bit data path, integrating a CPU, program memory (Flash/ROM), data memory (RAM), non-volatile storage (EEPROM), peripherals (timers, ADC, comparators, communication blocks), and I/O. PIC microcontrollers use a RISC Harvard architecture with separate program and data buses, which lets instruction fetch and operand read happen in the same cycle. Within the broader taxonomy, the PIC16F630 belongs to: 8-bit MCU -> microcontroller -> embedded controller -> semiconductor -> integrated circuit. Its compact 14-/16-pin footprint places it at the entry level of Microchip's PIC mid-range family. Key features include internal/external oscillator options selectable via configuration fuses, a low-power sleep mode drawing sub-microamp current, an on-chip 4 MHz internal oscillator, a single comparator with programmable reference, and ICSP (In-Circuit Serial Programming) for in-field firmware updates. The 35 single-word instruction set simplifies code development and minimizes firmware size, while the 16-bit wide instruction word delivers deterministic interrupt latency important for real-time control loops. The architecture uses a RISC core with a 14-bit instruction word, dual 8-bit register files, and a 2-level hardware stack for subroutines. The internal 4 MHz oscillator with calibration to +/-1% eliminates the external crystal in cost-sensitive designs. Brown-out Reset (BOR) and Power-on Reset (POR) protect Flash contents during brown-outs, and the watchdog timer with on-chip low-power RC oscillator guards against firmware lockups. Typical applications include consumer appliances, sensor node interfaces, low-cost remote controls, LED drivers, and battery-powered metering. With only 12 I/O available on the QFN-16 variant, designers use this part where pin count is tight but EEPROM-backed parameter storage and a comparator for threshold detection are still required. The exposed pad on the QFN package provides a low thermal resistance path, enabling reliable operation up to 125 C. When designing, prioritize placement of the ICSP/ICD pins (RB6, RB7) on accessible header pads so firmware updates remain possible after PCB assembly. For noise-sensitive analog comparator applications, add a 0.1 uF ceramic bypass capacitor directly at VDD and keep the comparator input traces short to avoid triggering on switching noise. This page synthesizes verified distributor pricing, drop-in same-package alternatives, and practical design notes not collected on the manufacturer datasheet front page.

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PIC16F630-I/P - 8-Bit 20MHz Flash MCU | Microchip Technology
PIC16F630-I/P

PIC16F630-I/P - 8-Bit 20MHz Flash MCU | Microchip Technology

The Microchip Technology PIC16F630-I/P is an 8-bit CMOS Flash microcontroller with a 20 MHz maximum clock, 1.75 KB of program Flash memory, 64 bytes of RAM, 12 I/O pins, and a 14-pin PDIP package. It is designed for compact embedded-control applications that require fast execution, flexible I/O, and in-system programmability. What is an 8-bit Flash microcontroller? An 8-bit Flash microcontroller is a programmable semiconductor that executes instructions over an 8-bit data path and stores its program in electrically rewritable Flash memory. The PIC16F630 belongs to the PIC16 family within the broader embedded-controller and semiconductor hierarchy. It combines a RISC-oriented instruction set, digital I/O, and analog comparison in a low-pin-count device. Key features include 200 ns instruction execution, a 35-instruction set, 1.75 KB of Flash program memory, 64 bytes of data RAM, 12 I/O pins, one comparator, and operation from a 4.5 V to 5.5 V supply. The -I suffix identifies the industrial temperature grade, while /P identifies the 14-pin PDIP package. The device also uses nanoPower technology for low-power operation in suitable embedded applications. Technically, the PIC16F630 uses a Harvard-style architecture with separate program and data memories, allowing the CPU to fetch instructions while accessing data. Its Flash memory supports configuration through programming tools, and its compact pin set supports timer, comparator, input-change interrupt, and general-purpose digital control functions. The 14-pin package offers through-hole assembly and is particularly useful for prototypes, educational platforms, industrial controllers, and legacy product revisions. Typical applications include small motor and relay controllers, simple sensor-conditioning systems, LED sequencing, keypad interfaces, temperature-control products, programmable indicators, and compact embedded instrumentation. Its 12 I/O pins provide enough flexibility for mixed digital input and output functions without requiring a larger package. When designing around PIC16F630-I/P, account for the 4.5 V to 5.5 V operating supply and configure unused pins appropriately. Because this is a PDIP package, verify PCB hole spacing, connector accessibility, and production-handling requirements before choosing it over a surface-mount option. Program development and firmware validation should use a compatible PIC programmer and the device's configuration data. This page combines manufacturer specifications, distributor availability, application-focused design guidance, and explicitly qualified drop-in alternatives. It distinguishes true pin-compatible replacements from merely similar PIC devices and identifies unavailable electrical details instead of estimating them.

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PIC16F630-I/SL - 8-bit Flash MCU, 1.75KB, 12 I/O, SOIC-14 | Microchip
PIC16F630-I/SL

PIC16F630-I/SL - 8-bit Flash MCU, 1.75KB, 12 I/O, SOIC-14 | Microchip

The Microchip Technology PIC16F630-I/SL is an 8-bit Flash-based CMOS microcontroller from the PIC® 16F family, delivering 20 MHz CPU performance with 200 ns instruction execution in a 14-pin SOIC package. It integrates 1.75 KB (1K x 14) of Flash program memory, 64 bytes of SRAM, and 128 bytes of EEPROM data memory alongside 12 digital I/O pins, one analog comparator, and a watchdog timer. An 8-bit microcontroller (MCU) is a programmable computing-on-a-chip that executes instructions on 8-bit data words. Within the broader semiconductor taxonomy, an MCU sits below microprocessors (MPUs) in complexity but above simple logic ICs, and the PIC16F630 belongs to the PIC mid-range family, which itself descends from Microchip's PIC® RISC architecture. Flash-based MCUs like the PIC16F630 are in-system programmable, supporting field firmware updates via ICSP without an external programmer, which is a key reason they remain dominant in cost-sensitive embedded designs. Key features of the PIC16F630 include 35 single-word instructions, an internal 4 MHz oscillator (calibrated to ±1%), an optional 20 MHz external oscillator, a 10-bit resolution timer/counter with programmable prescaler, and wide 2.0V–5.5V operating voltage. The integrated analog comparator supports applications such as battery monitoring, threshold detection, and zero-crossing detection. The device consumes less than 1 mA typical active current at 4 MHz and 5V, and offers sleep mode currents in the microamp range, making it suitable for power-constrained designs. The PIC16F630 architecture uses a Harvard RISC design with separate program and data buses, allowing instruction fetch and data access in the same clock cycle. This single-cycle execution model provides deterministic timing critical for interrupt-driven embedded firmware. The 14-bit instruction word width (giving 1K x 14 program words) yields compact assembly encoding and efficient use of Flash memory compared with 8-bit instruction-width competitors. Typical applications include low-cost consumer appliances, remote controls, sensor signal conditioning, LED lighting controllers, small motor drivers, battery chargers, and white-goods user interfaces. The industrial temperature range (-40°C to +85°C for the -I suffix) supports factory automation and outdoor equipment. The wide 2.0–5.5V supply range allows direct connection to single-cell Li-ion, 3.3V logic, or 5V regulated rails. When designing with this MCU, reserve one I/O line for ICSP clock and one for ICSP data so the firmware can be updated in-circuit. Ensure the MCLR pull-up resistor is correctly sized (typically 10–47 kΩ) and that decoupling is placed within 5 mm of the VDD pin to minimize EMI-induced resets. This page synthesizes distributor pricing from DigiKey, Mouser, and LCSC, plus drop-in same-family alternatives and practical design notes not found in the manufacturer datasheet alone, helping engineers evaluate the PIC16F630-I/SL for new designs and pin-compatible replacements.

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PIC16F630-I/ST - 8-bit MCU, 1.75KB Flash, 20MHz | Microchip
PIC16F630-I/ST

PIC16F630-I/ST - 8-bit MCU, 1.75KB Flash, 20MHz | Microchip

The Microchip Technology PIC16F630-I/ST is a 14-pin, 8-bit Flash CMOS microcontroller from the PIC16 mid-range family, delivering 1.75 KB (1K x 14) of program memory, 64 bytes of RAM, and 128 bytes of EEPROM in a TSSOP-14 surface-mount package. It runs at up to 20 MHz instruction clock (200 ns instruction cycle) and operates from 2.0 V to 5.5 V across the industrial -40 °C to +85 °C temperature range, exposing 12 digital I/O pins. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, integrating a CPU, non-volatile program memory (Flash/ROM), volatile data memory (RAM), non-volatile data EEPROM, and peripheral blocks (timers, ADC, comparators, communication ports) on one die. The PIC16F630 belongs to the PIC16F mid-range family, which sits within the broader PIC microcontroller hierarchy and the larger class of 8-bit microcontrollers commonly used where deterministic behaviour, low power, and small footprint outweigh the need for a 32-bit core. Typical application domains include consumer appliances, automotive body electronics, sensor interfaces, and industrial control modules. Key features include a 20 MHz internal-execution clock, 12 I/O pins with individually selectable direction, a 10-bit successive-approximation ADC, one analog comparator with programmable on-chip reference, one 8-bit and one 16-bit timer, an enhanced watchdog timer, an internal 4 MHz/37 kHz oscillator option, and In-Circuit Serial Programming (ICSP) via two pins. The TSSOP-14 package measures approximately 5.0 mm x 4.4 mm and supports low-cost two-layer PCB assembly. The device uses Microchip's RISC-based mid-range core executing 35 single-word instructions, with a hardware stack and interrupt controller. Program memory is Flash, supporting in-application reprogramming and ICSP, while the 128-byte EEPROM provides non-volatile data storage for calibration constants, serial numbers, and user settings without external serial EEPROM. Typical applications include battery chargers, fan controllers, sensor signal conditioners, simple user-interface panels, LED lighting controllers, and remote-control transmitters. The internal oscillator reduces external component count, making the part attractive for cost-sensitive two-layer designs. When designing with the PIC16F630, note that VDD decoupling requires a 0.1 µF ceramic capacitor close to the pin, and the MCLR reset pin should be tied to VDD through a 10 kΩ resistor for reliable operation. The 12 I/O pins are shared with peripheral functions, so pin-function allocation should be planned during schematic capture. This page synthesizes distributor pricing, drop-in TSSOP-14 alternatives, and practical design notes not found in the manufacturer datasheet, providing procurement and engineering teams with a single decision-ready reference for the PIC16F630-I/ST.

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PIC16F630T-E/SL - 8-bit 20MHz MCU 1.75KB Flash SOIC-14 | Microchip
PIC16F630T-E/SL

PIC16F630T-E/SL - 8-bit 20MHz MCU 1.75KB Flash SOIC-14 | Microchip

The Microchip Technology PIC16F630T-E/SL is a 14-pin, 8-bit CMOS Flash microcontroller from the PIC® 16F mid-range family, executing instructions in 200 ns at a 20 MHz clock. The /SL suffix indicates a 14-lead SOIC package and the T-suffix indicates tape-and-reel packaging; the E temperature grade covers -40 C to +125 C extended operation. The device integrates 1.75 KB (1K x 14) of Flash program memory, 64 bytes of SRAM, and 128 bytes of EEPROM data memory. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, data memory, and peripheral functions such as timers, comparators, and I/O ports. The PIC16F630 belongs to Microchip's PIC16 mid-range family — a category hierarchy of 8-bit microcontroller -> RISC MCU -> embedded controller -> semiconductor. Mid-range PIC MCUs use a 14-bit instruction word architecture optimized for deterministic interrupt response and small code size, supporting only 35 single-word instructions for simplified embedded firmware development. Key features include a 20 MHz internal/external oscillator, 12 I/O pins with individual direction control, a hardware 8-bit timer (Timer0) plus a 16-bit Timer1, one analog comparator with selectable reference, brown-out reset (BOR), power-on reset (POR), watchdog timer (WDT), and an in-circuit serial programming (ICSP) interface. The device operates across 4.5 V to 5.5 V and consumes a few mA in active mode with nanoampere sleep currents suitable for battery-aware designs. Typical applications include low-cost consumer appliances, automotive body electronics (interior lighting, sensor conditioning), industrial control logic, battery chargers, simple sensor interfaces, and remote-control transmitters. The compact 14-pin SOIC footprint and 35-instruction RISC core make it attractive for high-volume cost-sensitive products requiring reliable field upgradability via Flash. When designing with this MCU, ensure decoupling on VDD, observe the 4.5 V minimum supply requirement, and allocate adequate Flash headroom for bootloaders or future firmware updates. For new designs consider the suggested Microchip newer-device replacement PIC16F18324, which adds enhanced peripherals while preserving pin compatibility. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC16F630T-E/ST - 14-Pin Flash 8-bit MCU, 20MHz, 1.75KB | Microchip
PIC16F630T-E/ST

PIC16F630T-E/ST - 14-Pin Flash 8-bit MCU, 20MHz, 1.75KB | Microchip

The Microchip PIC16F630T-E/ST is a 14-pin Flash-based 8-bit CMOS microcontroller in the TSSOP-14 (ST) package, delivering 20 MHz CPU performance with only 35 single-word instructions and 200 ns instruction execution. It integrates 1.75 KB of Flash program memory and 64 bytes of SRAM, with 12 I/O pins and one analog comparator, all rated for an extended industrial temperature range of -40C to +125C. What is an 8-bit Flash microcontroller? It is a single-chip computer based on a reduced instruction set computing (RISC) architecture with on-chip non-volatile Flash program memory, RAM, and peripherals. Within the broader semiconductor hierarchy, 8-bit MCUs sit below 16-bit and 32-bit MCUs in computing capability but above fixed-function ASICs in flexibility, making them the workhorse of cost-sensitive embedded control. PIC microcontrollers from Microchip use a Harvard architecture, separating program and data buses for deterministic execution, and form part of the wider microcontroller -> embedded processor -> semiconductor taxonomy. Key features of this device include nanoWatt power-management technology for low standby current, an internal 4 MHz oscillator with software calibration, a wide 2.0V to 5.5V supply range, an internal voltage reference, and one comparator with programmable on-chip reference. The PIC16F630T-E/ST suffix encodes tape-and-reel packaging (T), extended temperature (E), and the TSSOP-14 (ST) package outline. The TSSOP-14 footprint measures approximately 5.0 mm x 4.4 mm, making it ideal for space-constrained designs. At the architecture level, the device uses a 14-bit instruction word with an 8-bit data path, 8-level hardware stack, and direct/indirect addressing modes. The Flash memory supports in-circuit serial programming (ICSP) via two pins (RB6/ICSPCLK, RB7/ICSPDAT), enabling firmware updates without removal from the board. Programmable code protection and a watchdog timer with on-chip low-power RC oscillator provide reliability for unattended embedded deployments. Typical applications include consumer appliance control, sensor signal conditioning, battery-powered remote controls, LED lighting controllers, and small motor or fan control loops. The extended temperature grade supports industrial and outdoor installations. Engineers often pair this MCU with MCP1700 LDOs, MCP6002 op-amps, or AT24C EEPROMs to build compact analog-plus-digital signal chains. Design consideration: at 20 MHz and 5.5V VDD the supply current reaches approximately 11 mA typical; below 4 MHz the device enters nanoWatt sleep modes drawing microampere-level standby current. Choose between 20 MHz operation for compute-heavy tasks and 32 kHz internal oscillator for ultra-low-power timing applications. The ICSP pins must be reserved even in production layouts for in-field firmware updates. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not consolidated in the manufacturer datasheet, providing a single decision-ready reference for engineers and procurement teams.

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PIC16F631-E/P - 8-Bit 20MHz 1.75KB Flash MCU | Microchip | DIP-20
PIC16F631-E/P

PIC16F631-E/P - 8-Bit 20MHz 1.75KB Flash MCU | Microchip | DIP-20

The Microchip Technology PIC16F631-E/P is an 8-bit Flash-based CMOS microcontroller from the PIC® mid-range x14 family, offering up to 20MHz CPU clock, 1.75KB (1K x 14) of Flash program memory and 64 bytes of RAM in a 20-pin PDIP through-hole package. The PIC16F631-E/P suffix denotes the Extended (E) operating temperature range of -40°C to +125°C, distinguishing it from the I-grade (-40°C to +85°C) variant. A microcontroller (MCU) is a single-chip computer containing a CPU core, volatile and non-volatile memory, and programmable I/O peripherals. The PIC16F631 belongs to the mid-range PIC16 architecture, sitting hierarchically as: microcontroller -> embedded controller -> CMOS microcontroller -> 8-bit MCU -> PIC16 family -> mid-range x14 core. Its 14-bit instruction word delivers 200ns instruction execution at 20MHz, with only 35 single-word instructions, which makes the part accessible for both new designers and seasoned embedded engineers. Key features of the PIC16F631 include nanoWatt Technology for low-power operation, integrated EEPROM data memory, a wide 2.0V to 5.5V operating voltage range, 12 I/O pins with selectable weak pull-ups, an enhanced 8-bit timer/counter (Timer1) with its own oscillator, an analog comparator module, and a 10-bit ADC. The nanoWatt sleep modes and dynamic switching of oscillator sources allow the device to draw microamp-level currents in standby - useful for battery-powered designs. Architecturally, the PIC16F631 uses a Harvard RISC core with separate program and data buses, two 8-bit file-select registers (FSR) for indirect addressing, a hardware interrupt controller, and an in-circuit serial programming (ICSP) interface for field updates. The 10-bit A/D converter is shared with digital I/O on PORTA, while PORTC carries general-purpose I/O and the analog comparator outputs. Internal oscillator options (8MHz LF-INTOSC and 31kHz LF-INTOSC) reduce external component count. Typical applications include consumer appliance control, sensor signal conditioning, low-end motor control loops, LED lighting controllers, and battery-powered remote controls. Its small footprint and extended temperature range also suit industrial sensor nodes and automotive body controllers. According to Microchip datasheet 40001262F, the device supports 100,000 erase/write cycles on Flash and 1,000,000 erase/write cycles on EEPROM, ensuring long field life. When designing with the PIC16F631, consider that the E-suffix part is qualified for -40°C to +125°C operation, while the I-suffix is only -40°C to +85°C. Decoupling capacitors (100nF ceramic + 10uF bulk) should be placed within 5mm of VDD, and the MCLR pin must have a pull-up and decoupling for reliable reset. Unused I/O should be configured as outputs and tied low to minimize power consumption. This page synthesizes distributor pricing, drop-in PIC16F630 alternatives, and practical design notes that go beyond the manufacturer datasheet, helping engineers choose between standard PIC16F631 variants in the same PDIP-20 footprint.

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PIC16F631-E/SO - 8-bit PIC MCU, 1.75KB Flash, 20MHz, 20-SOIC | Microchip
PIC16F631-E/SO

PIC16F631-E/SO - 8-bit PIC MCU, 1.75KB Flash, 20MHz, 20-SOIC | Microchip

The Microchip PIC16F631-E/SO is an 8-bit Flash-based CMOS microcontroller in the low-pin-count PIC16 family, offering 1.75KB of Flash program memory, 64 bytes of SRAM, and 128 bytes of EEPROM data memory in a 20-pin SOIC (SO) wide-body package. It operates at up to 20 MHz instruction-clock speed from a 4.5V to 5.5V supply (2.0V to 5.5V for the F-version core) and provides 11 digital I/O pins plus dedicated oscillator, reset, and ICSP/ICD programming pins. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, a small program memory, RAM, integrated peripherals (timers, ADC, comparators, communications), and a CPU core that executes one instruction per instruction cycle (or per 4 clocks in PIC mid-range architecture). PIC microcontrollers occupy the 8-bit MCU hypernym in the broader semiconductor taxonomy: MCU -> microcontroller -> embedded controller -> semiconductor IC. They are widely used where deterministic real-time response, low cost, and low power are more important than raw throughput. The PIC16F631 belongs to the low-pin-count (14-/20-pin) sub-family of the PIC16 mid-range architecture and integrates nanoWatt power management for sleep-mode currents below 1 µA. Key features include 11 I/O pins with individual direction control, an 8-bit Timer0/Timer2 plus a 16-bit Timer1, two analog comparators with programmable reference, an enhanced universal synchronous/asynchronous receiver-transmitter (EUSART) for RS-232/RS-485 links, an I2C/SPI master/slave MSSP peripheral, a 10-bit ADC with up to 11 input channels, an enhanced PWM module with up to 4 outputs, and an internal 8 MHz oscillator calibrated to ±1% across voltage and temperature. The -E (Extended) temperature grade supports -40 °C to +125 °C operation, suitable for industrial and automotive underhood environments. The architecture is a Harvard RISC core with 35 single-word instructions, separate program and data buses, a hardware stack of 8 levels, and interrupt capability with automatic context saving. NanoWatt technology provides multiple idle/sleep modes (SLEEP, IDLE, and a low-power Timer1 oscillator mode) that allow average current draw well below 100 µA in duty-cycled battery applications. On-chip in-circuit serial programming (ICSP) and in-circuit debugger (ICD) interfaces enable field re-programming and real-time emulation without removing the part from the board. Typical applications include consumer appliance control, small motor drivers, LED lighting controllers, battery chargers, security keypads and PIR-sensor panels, HVAC damper/valve actuators, automotive interior lighting and accessory modules, and low-cost industrial sensor nodes. The combination of EUSART + MSSP + ADC + PWM in a 20-pin footprint is a sweet spot for replacing multiple discrete timers or glue logic. When designing with this part, budget the ICSP/ICD pins (RB6/RB7 on the 20-pin DIP/SOIC) for in-system programming access - either through dedicated header pads or test-points - because they are not usable as general-purpose I/O once the device is locked, and the oscillator configuration bits selected at Flash programming time determine the clock source for the entire application lifetime. This page synthesizes distributor pricing, drop-in alternatives from Microchip's PIC16 low-pin-count family, and practical design notes not found in the manufacturer datasheet.

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PIC16F631-E/SS - 8-bit MCU 1.75KB Flash 20MHz SSOP-20 | Microchip
PIC16F631-E/SS

PIC16F631-E/SS - 8-bit MCU 1.75KB Flash 20MHz SSOP-20 | Microchip

The Microchip Technology PIC16F631-E/SS is an 8-bit Flash-based CMOS microcontroller built on the PIC mid-range x14 architecture, offering 1.75KB (1K x 14) of Flash program memory, 128 bytes of EEPROM data memory, and 64 bytes of SRAM in a 20-pin SSOP package. It executes instructions at up to 20 MHz and operates across an extended industrial temperature range of -40C to +125C, making it suitable for both commercial and harsh-environment embedded designs. A microcontroller (MCU) is a single-chip computer containing a CPU core, program and data memory, peripherals, and I/O on one silicon die. The PIC16F631 belongs to the low pin-count (20-pin) PIC family, which sits in the taxonomy microcontroller -> embedded processor -> digital IC -> semiconductor. Microchip's mid-range x14 core delivers deterministic, single-cycle instruction execution at 200 ns per instruction at 20 MHz, simplifying real-time control loops for entry-level and cost-sensitive applications. Key features of the PIC16F631-E/SS include nanoWatt technology for ultra-low power consumption, 18 general-purpose I/O pins, an internal 8 MHz oscillator, an enhanced capture/compare/PWM (ECCP) module, multiple timers (Timer0, Timer1, Timer2), a 10-bit ADC, comparators, and on-chip EEPROM for non-volatile data storage. The extended (-E) temperature grade is qualified to -40C to +125C, suitable for industrial, automotive aftermarket, and outdoor applications. Internally, the PIC16F631 uses a Harvard architecture with separate program and data buses, which allows instruction fetch and data access in the same clock cycle. Its 14-bit instruction word provides compact code density, and the Flash memory supports in-circuit serial programming (ICSP) for easy field updates. Typical applications include consumer appliances, sensor interfacing nodes, LED drivers, low-end motor control, battery chargers, security panels, and industrial control logic. It is also widely used in educational and hobbyist platforms because of its simplicity, low cost, and robust toolchain support (MPLAB X IDE + XC8 compiler + PICkit programmer). When designing with the PIC16F631-E/SS, ensure decoupling capacitors (100 nF plus a bulk 10 uF) are placed close to VDD and VSS, and respect the 5.5 V absolute maximum on VDD to avoid latch-up. Use the internal 8 MHz oscillator to reduce BOM cost unless precise timing is required; otherwise, an external crystal up to 20 MHz is recommended for UART and timing-critical peripherals. This page consolidates distributor pricing, SSOP-20 drop-in alternatives, and practical design notes not all available from a single datasheet source, giving engineers a faster, more informed selection workflow.

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