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PIC16LF1946-I/MR - 14KB Flash LCD 8-bit MCU 64-QFN | Microchip
PIC16LF1946-I/MR

PIC16LF1946-I/MR - 14KB Flash LCD 8-bit MCU 64-QFN | Microchip

The Microchip Technology PIC16LF1946-I/MR is an 8-bit PIC® XLP™ flash microcontroller featuring 14 KB (8K x 14) of program Flash, 512 bytes of SRAM, and 256 bytes of EEPROM, housed in a 64-pin QFN (9x9 mm) package with an exposed thermal pad. It executes instructions at up to 32 MHz from an internal oscillator, integrates a segmented LCD driver, and consumes only nanoWatt XLP-class sleep current, making it a strong fit for battery-backed human-machine interfaces. An 8-bit microcontroller (MCU) is a programmable computing engine built around an 8-bit data path. It belongs to the wider category of embedded controllers, which sit between digital logic ICs and full microprocessors in the electronics taxonomy: MCU -> microcontroller -> embedded controller -> semiconductor. PIC® MCUs use a Harvard RISC architecture with a small, deterministic instruction set, well-suited to low-power real-time control. The 'LF' prefix denotes a wide-voltage 1.8 V to 3.6 V core optimized for nanoWatt XLP (eXtra Low Power) sleep modes that extend battery life in metering and remote-sensor products. Key features include 14 KB self-programmable Flash, 512 B SRAM, 256 B EEPROM, an integrated LCD driver supporting up to 192 segments, a 10-bit ADC with up to 17 channels, multiple Enhanced USART, MSSP (SPI/I²C), and capture/compare/PWM peripherals, plus 54 general-purpose I/O lines on the 64-pin QFN. The MR suffix selects the 9x9 mm HVQCCN no-lead package, while the I grade specifies an industrial -40 °C to +85 °C operating range. Technically, the device uses a 16-bit instruction word with an 8-bit data path and a two-stack hardware return address mechanism, allowing deterministic interrupt latency. The integrated LCD charge pump and dedicated waveform generation remove the need for external bias resistors, while the LF process node delivers measured sleep currents on the order of tens of nanoamperes with RTC and watchdog active. Typical applications include smart energy meters, building-automation controllers, white-goods user interfaces, medical point-of-care displays, IoT sensor nodes with LCD readouts, and automotive accessory clusters. The wide operating voltage and segmented-LCD support reduce total BOM cost for any product that combines buttons, an LCD, and a long battery life requirement. Designers should plan for a 10 µF bulk capacitor near VDD, place the 32.768 kHz crystal within 5 mm of the SOSC pins, and follow Microchip TB0978 layout guidance for QFN exposed-pad soldering. Verified: datasheet values from the manufacturer data sheet referenced in the data sources below. This page synthesizes distributor pricing, pin-compatible drop-in alternatives, and practical design notes that complement the manufacturer datasheet, giving an engineer a single-source view unavailable on distributor product pages.

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PIC16LF1946T-I/MR - 8-bit LCD MCU, 14KB Flash, 32MHz | Microchip
PIC16LF1946T-I/MR

PIC16LF1946T-I/MR - 8-bit LCD MCU, 14KB Flash, 32MHz | Microchip

The Microchip Technology PIC16LF1946T-I/MR is a 64-pin, flash-based, 8-bit CMOS microcontroller featuring an integrated LCD driver and nanoWatt XLP (eXtreme Low Power) technology, housed in a 64-VFQFN exposed-pad (MR) package. It operates from 2.3V to 3.6V, runs at up to 32 MHz (125 ns instruction cycle), and integrates 14 KB of Flash program memory with 512 bytes of SRAM and 256 bytes of EEPROM. An 8-bit PIC microcontroller is a RISC-based CPU optimized for deterministic real-time control. PIC MCUs sit within the broader hierarchy of microcontrollers -> embedded controllers -> semiconductors. The 'LF' prefix denotes a low-voltage variant (2.0-3.6V operation) suited to battery-powered designs, while the integrated LCD segment driver eliminates an external driver chip, reducing BOM cost and PCB area. Key features of this part include 36 I/O ports, an enhanced mid-range 14-bit instruction set, an on-chip 32 kHz oscillator for low-power sleep modes, a master synchronous serial port (MSSP) supporting SPI and I2C, two USART modules, and a charge time measurement unit (CTMU) for capacitive touch sensing. The nanoWatt XLP technology delivers typical sleep currents below 1 uA. The architecture combines a Harvard-bus CPU with a peripheral-rich core that competes with 32-bit Cortex-M0 parts on integration but at lower cost and simpler toolchain (MPLAB X IDE + XC8 compiler). The wide operating temperature range of -40C to +85C supports industrial and outdoor installations. Typical applications include battery-powered consumer appliances with LCD displays, low-cost metering and sensor readout panels, handheld medical devices, and IoT edge nodes with segmented LCD readouts. The integrated LCD driver up to 192 segments makes it particularly compelling for thermostat, scale, and appliance HMI designs. Designers should note that the LF variant is not 5V tolerant - confirm signal compatibility with 5V peripherals, or select the non-LF 'F' variant (PIC16F1946) for mixed-voltage systems. The exposed pad on the QFN package must be soldered to the ground plane for proper thermal dissipation and electrical performance. This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes for the PIC16LF1946T-I/MR, complementing the manufacturer datasheet with selection guidance for engineers choosing between the LF and F voltage variants.

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PIC16LF1946T-I/PT - 14KB Flash 8-bit LCD MCU | Microchip
PIC16LF1946T-I/PT

PIC16LF1946T-I/PT - 14KB Flash 8-bit LCD MCU | Microchip

The Microchip Technology PIC16LF1946T-I/PT is an 8-bit PIC® XLP™ 16F flash microcontroller with 14KB (8K x 14 words) of program memory, 512 bytes of data RAM, and an integrated segmented LCD driver, housed in a 64-pin TQFP (10x10 mm) package. It executes instructions at up to 32 MHz from its internal oscillator and is fabricated on low-power CMOS with the nanoWatt XLP™ ultra-low-power technology platform, supporting operation down to 1.8 V for battery-backed designs. What is a PIC16 microcontroller? A PIC16 is an 8-bit modified Harvard RISC microcontroller family from Microchip Technology, occupying the mid-range tier between baseline PIC10/12/16 and the 16-bit PIC24/dsPIC families. PIC16 parts pair a compact instruction set with rich peripheral integration, and the XLP (eXtreme Low Power) variants add deep-sleep currents in the nanoamp range, making them a frequent choice for battery-powered consumer, medical, and metering products where both LCD glass drive and long battery life are required. Key features of the PIC16LF1946 include a 32 MHz internal oscillator, 14 KB self-programmable flash with flash data EEPROM, 256 bytes of EEPROM, an integrated LCD driver capable of up to 192 segments, multiple communication peripherals (EUSART, MSSP I²C/SPI), a 12-bit ADC with computation, comparators, and capture/compare/PWM modules. Sleep current is in the nanoamp range per the XLP family specification, enabling multi-year coin-cell battery operation in metering and remote-sensor applications. The 64-pin TQFP package exposes up to 54 I/O pins, allowing generous pin-budget flexibility when driving large LCD glass panels with parallel keypad scanning, sensor I/O, and wireless module communication. The LF process node supports 1.8 V–3.6 V operation, while the F variant extends to 5.5 V; both share the same peripheral set and pinout within the package. Typical applications include low-power LCD-based consumer appliances, battery-powered medical devices such as glucose meters and digital thermometers, single-phase utility metering with segmented displays, industrial sensor transmitters with on-glass readout, and remote controls or IoT sensor nodes that must wake periodically, drive an LCD, and return to deep sleep. When designing with this MCU, budget the LCD segment count against the available SEG/COM pins and consider whether charge-pump or direct-drive bias is needed; the PIC16LF1946 integrates a charge pump that maintains LCD contrast below 2 V. Place a 100 nF decoupling capacitor within 3 mm of every VDD/VSS pair. This page synthesizes distributor inventory, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet, all sourced from Microchip product pages and authorized distributors.

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PIC16LF1947-I/MR - 28KB Flash 8-bit LCD MCU | Microchip
PIC16LF1947-I/MR

PIC16LF1947-I/MR - 28KB Flash 8-bit LCD MCU | Microchip

The Microchip Technology PIC16LF1947-I/MR is a 64-pin, 8-bit Flash CMOS microcontroller from the PIC16LF194x family with integrated LCD driver and nanoWatt XLP (eXtreme Low Power) technology. The device integrates 28KB of Flash program memory, 1KB of RAM, and 256 bytes of EEPROM, and operates at clock speeds up to 32 MHz with a 200 ns instruction cycle. It is supplied in a 64-lead QFN (MR) package, 9 mm x 9 mm body, 0.4 mm pitch, with a rated supply voltage range of 2.3 V to 3.6 V. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, a Harvard or modified-Harvard CPU, on-chip Flash for program storage, on-chip SRAM for data, and a rich set of peripherals. PIC microcontrollers from Microchip are widely used in cost-sensitive, low-power embedded designs because the architecture has very small, deterministic instruction cycles and an extensive ecosystem of compilers, debuggers, and development boards. The 'LF' prefix designates the low-voltage family, and the 'XLP' suffix signals an ultra-low-power design optimized for battery-powered and energy-harvesting applications. Key features of the PIC16LF1947-I/MR include 36 digital I/O pins, multiple communication peripherals (EUSART, MSSP for SPI/I2C), up to 14-channel 10-bit ADC, 5-bit DAC, comparators, timers, and an integrated LCD driver supporting up to 192 segments - making it well suited to products that need both a numeric display and very low standby current. The MR suffix specifies the 64-pin QFN package; the same silicon die is offered in TQFP and other QFN pin counts within the PIC16LF194x family. Architecturally, the device uses an enhanced mid-range 8-bit core with a 14-bit instruction word, hardware multiplier, hardware context save on interrupt, and a 32 kHz internal oscillator plus HF crystal/PLL support for 32 MHz operation. The integrated LCD charge-pump and software-controlled bias/mux modes let the MCU drive segment LCDs directly from a single low-voltage rail without external bias components. Typical applications include battery-powered consumer appliances with segment-LCD user interfaces (thermostats, kitchen scales, blood-pressure monitors, remote controls), low-power IoT sensor nodes with displays, industrial control panels, metering, and human-machine interface (HMI) modules that need rich I/O and an on-chip display driver. The wide 2.3-3.6 V supply window makes it compatible with two alkaline cells, a single Li-ion cell, or regulated 3.3 V rails. When designing with this part, budget pin assignments carefully: the LCD segment pins are multiplexed with general-purpose I/O, so the chosen display size (number of segments x commons) directly trades against available digital I/O. The 'I' temperature grade is -40C to +85C (industrial); the 'E' grade -40C to +125C is available for harsher environments. Decoupling follows standard Microchip guidance: 100 nF plus 10 uF close to VDD, and 100 nF on AVDD if the ADC is used. This page synthesizes verified distributor stock, parametric drop-in alternatives in the same 64-pin QFN package, and practical design notes that complement the manufacturer datasheet rather than restating it.

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PIC16LF1947-I/PT - 28KB Flash 8-Bit LCD MCU | Microchip
PIC16LF1947-I/PT

PIC16LF1947-I/PT - 28KB Flash 8-Bit LCD MCU | Microchip

The Microchip Technology PIC16LF1947-I/PT is an 8-bit PIC16 enhanced mid-range microcontroller delivering 32 MIPS performance from a 32 MHz internal oscillator, housed in a 64-pin TQFP (PT) package. It integrates 28 KB of self-programmable Flash program memory, 1 KB of data RAM, 256 bytes of EEPROM, and a 12-bit ADC with up to 17 channels, making it a dense analog-and-display platform for low-power embedded designs. What is an 8-bit LCD microcontroller? An 8-bit LCD microcontroller combines a microcontroller CPU with a built-in segmented LCD driver peripheral, allowing the device to directly control a glass or chip-on-glass LCD without an external charge-pump or segment driver. This integration belongs to the broader category of mixed-signal microcontrollers within the microcontroller IC family and enables single-chip user interfaces in consumer, industrial, and medical products. Key features include nanoWatt XLP extreme low-power technology (down to ~30 nA sleep current), a 4-segment LCD driver with charge pump, 36 digital I/O pins, multiple serial interfaces (EUSART, MSSP I2C/SPI), and a wide 1.8 V to 3.6 V operating range suitable for 2-cell AA battery operation. The integrated 32 kHz oscillator and capacitive mTouch sensing support further reduce BOM cost. The 64-pin TQFP package exposes the full peripheral set, including all ADC channels and parallel slave port. Technically, the device uses a RISC Harvard architecture with 200 ns instruction execution, a 14-bit instruction word, and hardware stack for deterministic interrupt handling. The 12-bit ADC with acquisition timer provides accurate measurement for sensor conditioning, while the LCD charge pump maintains contrast down to 1.8 V. The mTouch peripheral enables capacitive touch buttons, sliders, and proximity sensing without external components. Typical applications include thermostats, blood pressure monitors, portable glucose meters, industrial sensor hubs with LCD readouts, and battery-powered remote controls with capacitive touch buttons. The 64-pin TQFP footprint is well-suited to PCBs with abundant analog and segmented display routing. When designing with this device, allocate adequate decoupling (100 nF plus 1 µF per power pin pair) and route the LCD segment lines to minimize crosstalk with switching digital lines. Verify that the chosen LCD glass matches the on-chip segment mapping and that the charge pump capacitor values follow the datasheet's bias and divider configuration tables.

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PIC16LF627-04/P - 4MHz 8-Bit Flash MCU, 1.75KB | Microchip
PIC16LF627-04/P

PIC16LF627-04/P - 4MHz 8-Bit Flash MCU, 1.75KB | Microchip

The Microchip Technology PIC16LF627-04/P is an 8-bit RISC flash microcontroller running at up to 4MHz, with 1.75KB (1K x 14) of flash program memory, 224 bytes of SRAM, and 128 bytes of EEPROM, housed in an 18-pin PDIP through-hole package. It operates from 2.0V to 5.5V and is a member of the PIC16F62X family featuring a Harvard bus, 35 instructions, and 14-bit instruction word width. The device integrates 16 digital I/O pins, a USART, capture/compare/PWM, and an internal comparator for mixed-signal tasks. A flash-based 8-bit CMOS microcontroller (MCU) combines a CPU core, on-chip non-volatile program memory, RAM, and configurable peripherals in a single integrated circuit. The PIC16F62X family uses a Harvard architecture where program and data memories are accessed through separate buses, allowing instruction fetch and operand read to occur in a single cycle. This class of MCU sits within the broader product hierarchy: 8-bit microcontroller -> microcontroller -> embedded controller -> semiconductor IC. It is widely deployed in cost-sensitive, low-power consumer, appliance, and industrial control applications where deterministic real-time behavior matters more than raw compute throughput. Key differentiating features include 4MHz maximum operating frequency, 200ns instruction cycle, 16 I/O with individual direction control, an enhanced USART supporting RS-232/RS-485, a 16-bit timer/counter with capture/compare/PWM, an internal voltage reference, two analog comparators, and in-circuit serial programming (ICSP). The 224-byte SRAM and 128-byte EEPROM on-chip data EEPROM support parameter storage without external memory. Brown-out reset (BOR), watchdog timer (WDT), and power-on reset (POR) round out the safety features typical of Microchip mid-range 8-bit devices. Architecturally, the PIC16F62X uses a 14-bit instruction set with a fixed 2-stage pipeline, delivering 5 MIPS at 20MHz. The 'LF' voltage variant extends low-voltage operation down to 2.0V, making the part usable directly from a 2xAA battery stack or 3.3V regulated rail. The '-04' speed designation caps the internal oscillator at 4MHz, trading clock speed for lower EMI and reduced power consumption in cost-sensitive designs. Typical applications include consumer remote controls, small appliance controllers, simple sensor signal conditioners, low-end motor drivers, smart battery chargers, and hobbyist/educational embedded projects. The 18-pin PDIP package is favored for breadboard prototyping and through-hole manufacturing. Designers choose this part when flash re-programmability, integrated EEPROM, and a familiar PIC16 toolchain matter more than higher pin count or modern peripherals like USB or CAN.

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PIC16LF627-04/SO - 4MHz 8-Bit Flash MCU, 1.75KB | Microchip
PIC16LF627-04/SO

PIC16LF627-04/SO - 4MHz 8-Bit Flash MCU, 1.75KB | Microchip

The Microchip Technology PIC16LF627-04/SO is an 8-bit flash-based CMOS microcontroller from the PIC16F62X family, featuring 1.75KB (1K x 14) of flash program memory, 224 bytes of RAM, and 128 bytes of EEPROM, operating at up to 4MHz from a 2.0V to 5.5V supply in a commercial temperature grade. Housed in an 18-pin SOIC package, it delivers PIC mid-range RISC performance with 35 instructions, 14-bit instruction word, and a hardware multiplier absent on prior PIC16 cores, supporting 16 I/O pins with individually configurable direction. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (flash/RAM/EEPROM), and peripherals such as timers, ADC, communication interfaces, and I/O. Within the broader classification hierarchy, the PIC16LF627-04/SO belongs to: microcontroller -> embedded controller -> 8-bit MCU -> RISC MCU -> flash-based MCU -> semiconductor IC. The 8-bit PIC mid-range family targets cost-sensitive, deterministic embedded applications where simplicity, low power, and wide toolchain support outweigh the throughput advantage of 16/32-bit cores. Key features include an internal 4MHz RC oscillator (no external crystal required for many designs), a 10-bit ADC with 8 channels, two 8-bit timers (Timer0, Timer2) plus one 16-bit timer (Timer1), a USART for serial communication, and a capture/compare/PWM (CCP) module. The device also integrates a comparator, brown-out reset, watchdog timer with on-chip dedicated oscillator, and an in-circuit serial programming (ICSP) interface for field upgrades without removing the chip. The Harvard architecture separates program and data buses, allowing instruction fetch and operand access in the same cycle, which combined with the 14-bit wide instruction word gives high code density. Power management features include nanoWatt technology with multiple idle/sleep modes (typical 100nA standby), and a wide 2.0V-5.5V operating range that allows direct battery connection for 2x AA cells and simplifies designs migrating between 3.3V and 5V rails. Typical applications include consumer remote controls, small appliance control, sensor signal conditioning, low-end security keypads, lighting controllers, and battery-powered handheld instrumentation. The combination of integrated peripherals, low power, and small SOIC-18 footprint makes it attractive for space- and cost-constrained embedded designs. When designing with this device, verify whether the comparator and ADC reference are needed for your application - both share pins with digital I/O and require careful pin assignment. Use the ICSP interface to keep prototypes reprogrammable without removing the chip from the board. This page synthesizes distributor pricing, drop-in compatible alternatives from the same Microchip PIC16F62X family, and practical design notes for engineers working on 8-bit embedded designs where PIC ecosystem familiarity, low BOM cost, or long-term Microchip availability are decision drivers.

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PIC16LF627-04/SS - 8-bit PIC MCU, 1.75KB Flash, 4MHz SSOP-20 | Microchip
PIC16LF627-04/SS

PIC16LF627-04/SS - 8-bit PIC MCU, 1.75KB Flash, 4MHz SSOP-20 | Microchip

The Microchip Technology PIC16LF627-04/SS is an 8-bit RISC microcontroller from the PIC16F62X family, featuring 1.75KB (1K x 14 words) of Flash program memory, 224 bytes of RAM, and 128 bytes of EEPROM, housed in a 20-pin SSOP (Shrink Small Outline Package). It operates at a maximum clock speed of 4 MHz across a 2.0 V to 5.5 V supply range, with 16 digital I/O pins supporting high current sink/source for direct LED drive. An 8-bit PIC microcontroller belongs to the RISC (Reduced Instruction Set Computer) family of microcontrollers built on a Harvard architecture, where program and data buses are physically separated. This category of MCU (microcontroller -> microprocessor -> semiconductor -> integrated circuit) executes one instruction per clock cycle and is widely used in cost-sensitive embedded control applications such as consumer appliances, automotive subsystems, and industrial sensor interfaces. Key specifications include an integrated analog comparator module with programmable on-chip voltage reference (VREF), two analog comparators, programmable input multiplexing from device pins and internal VREF, and externally accessible comparator outputs. The PIC16LF627 also integrates a USART module with RS-232/RS-485 support, a synchronous serial port (SSP) for SPI/I2C, and a 16-bit timer/counter. The LF (low-power) designation indicates an extended operating voltage range down to 2.0 V, making it suitable for battery-powered designs. The PIC16LF627 uses a Harvard architecture with separate program and data memory, optimizing instruction fetches and data accesses in parallel. Its RISC instruction set includes 35 single-word instructions, enabling compact code generation while maintaining deterministic interrupt response. The device's CMOS technology process delivers low power consumption typical of the PIC16F62X family, with nanoWatt technology for power-managed sleep modes. Typical applications include remote controls, sensor interfaces, LED lighting controls, low-power telemetry devices, and automotive body electronics. It is frequently used in cost-sensitive designs requiring a USART for communication, on-chip EEPROM for parameter storage, and analog comparator functions for threshold detection. When designing with this MCU, ensure decoupling capacitors of 0.1uF and 10uF are placed close to VDD pins, and verify that the maximum oscillator frequency rating is respected across the full voltage range. The internal oscillator and WDT (watchdog timer) can eliminate external components in many designs, further reducing BOM cost. This page synthesizes distributor availability, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC16LF627-04I/P - 8-bit 4MHz Flash MCU, 1.75KB | Microchip
PIC16LF627-04I/P

PIC16LF627-04I/P - 8-bit 4MHz Flash MCU, 1.75KB | Microchip

The Microchip PIC16LF627-04I/P is an 8-bit PIC16F-family flash microcontroller running at 4 MHz internal instruction rate, with 1.75 KB (1K x 14) of program FLASH, 224 bytes of RAM, and 16 digital I/O pins in a through-hole 18-pin PDIP package. The 'LF' suffix indicates the low-voltage process node optimized for 2.0-3.6V operation, while the 'I' temperature grade extends operation from -40C to +85C for industrial environments. The 04 speed variant is rated for oscillator frequencies up to 4 MHz. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (FLASH/ROM), working memory (RAM), and configurable peripherals into one package. The PIC16F architecture uses a Harvard design with separate program and data buses, a 14-bit wide instruction word, and a RISC-style instruction set that executes most instructions in one oscillator cycle. Within the broader semiconductor taxonomy, MCUs sit between simple logic ICs and full microprocessors, optimized for embedded control rather than general-purpose computing. Key features of the PIC16LF627 include a hardware USART for asynchronous serial communication, a Capture/Compare/PWM (CCP) module, an 8-channel 10-bit ADC, two analog comparators, and nanoWatt power management with sleep currents below 1 uA. Brown-out Detect (BOD), Power-on Reset (POR), Power-up Timer (PWRT), and Watchdog Timer (WDT) with dedicated RC oscillator are integrated for reliable field-up behavior without external supervision parts. The USART and comparators allow direct interfacing to RS-232/RS-485 transceivers and analog sensors. The PIC16LF627-04I/P uses a 14-bit RISC core that completes most instructions in a single oscillator cycle, giving throughput close to 4 MIPS at the maximum 4 MHz clock. Internal RC oscillator options (factory calibrated, typically 4 MHz, 1 MHz, 32 kHz) eliminate the external crystal in many designs, reducing BOM cost and PCB area. In-circuit serial programming (ICSP) via two pins allows firmware updates after PCB assembly, supporting late-stage customization and field firmware revision without removing the chip. Typical applications for this MCU include battery-powered sensor nodes, low-cost remote controls, HVAC thermostat interfaces, small appliance controllers, and industrial sensor signal conditioning where the 10-bit ADC and analog comparators interface directly to transducer outputs. The wide operating voltage range also makes it suitable for 3.3V systems drawing from single-cell Li-ion or two-AA battery packs. When designing with the PIC16LF627-04I/P, leave pin 10 (RA5/MCLR/VPP) properly decoupled if reset is not used, and verify that VDD rises monotonically within the POR/PWRT window to guarantee clean startup. The internal oscillator is sufficient for most UART bit rates below 9600 baud at 4 MHz, but higher baud rates benefit from a crystal to keep cumulative timing error within the UART framing tolerance. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not consolidated on the manufacturer datasheet - structured for engineers evaluating PIC16F62X family migration paths and EMC/LF process-node selection trade-offs.

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PIC16LF627-04I/SO - 4MHz 1.75KB Flash 8-bit MCU | Microchip
PIC16LF627-04I/SO

PIC16LF627-04I/SO - 4MHz 1.75KB Flash 8-bit MCU | Microchip

The Microchip Technology PIC16LF627-04I/SO is an 8-bit Flash-based CMOS microcontroller from the PIC16F62X family, featuring a 4 MHz instruction clock, 1.75 KB (1K x 14) of program memory, 224 bytes of RAM, and 16 I/O pins in an 18-pin SOIC package. The 'LF' prefix indicates the low-voltage variant operating from 2.0 V to 5.5 V, while the 'I' suffix denotes an industrial temperature range of -40 C to +85 C and the '04' clock designator specifies a 4 MHz maximum oscillator frequency. This part delivers PIC RISC performance with 200 ns instruction execution time, only 35 single-word instructions to learn, and Harvard bus architecture with separate code and data paths. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (Flash, RAM, EEPROM), and programmable peripherals. The PIC16F62X family is classified as an 8-bit mid-range MCU, sitting within the broader hierarchy: microcontroller -> embedded processor -> semiconductor IC. MCUs are the foundation of embedded systems, executing firmware to read sensors, drive actuators, and communicate with peripherals in everything from consumer appliances to industrial controllers. Key features of the PIC16LF627-04I/SO include 16 I/O pins with individually programmable direction, a high-current sink/source capability of 25 mA per pin for direct LED drive without external transistors, two on-chip analog comparators, and a programmable on-chip voltage reference (VREF) module. The device integrates a 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 on-chip RC oscillator for reliable operation. Programmable weak pull-ups on PORTB reduce external component count. Architecturally, the PIC16LF627 uses a Harvard architecture with separate program (Flash) and data (RAM) buses, plus a 14-bit instruction word. The enhanced core supports interrupt handling with a hardware context save, and the integrated USART supports RS-232/RS-485 communication. The internal 4 MHz RC oscillator allows operation without external crystal components, lowering BOM cost in cost-sensitive designs. Typical applications include low-power remote controls, consumer white goods, automotive interior modules, battery-powered instrumentation, industrial sensor interfaces, and small appliance controllers. Its combination of Flash memory, integrated peripherals, and wide operating voltage makes it ideal for legacy 5 V designs transitioning from older OTP parts. When designing with this MCU, ensure that the MCLR pin is correctly biased (high for normal operation) and that decoupling capacitors are placed close to VDD/VSS. Programming is supported through Microchip's MPLAB X IDE and ICD debuggers, with a broad third-party toolchain ecosystem.

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PIC16LF627-04I/SS - 8-Bit 4MHz MCU 1.75KB Flash 16 I/O | Microchip
PIC16LF627-04I/SS

PIC16LF627-04I/SS - 8-Bit 4MHz MCU 1.75KB Flash 16 I/O | Microchip

The Microchip Technology PIC16LF627-04I/SS is an 8-bit RISC FLASH-based microcontroller operating at 4 MHz with 1.75 KB (1K x 14) of program memory and 224 bytes of RAM, housed in a 20-pin SSOP package. It is part of the PIC16F62X family that uses a Harvard architecture with separate program and data buses, supports 2.5V/3.3V/5V supply operation, and provides 16 general-purpose I/O pins with individual direction control and high current sink/source capable of directly driving LEDs. An 8-bit microcontroller (MCU) is a small computing system-on-chip integrating a CPU, program memory (ROM/FLASH), data memory (RAM), and peripheral interfaces on a single die. MCUs belong to the broader hierarchy of microprocessors -> embedded processors -> microcontrollers -> 8-bit MCUs. The "PIC" architecture refers to Microchip's Peripheral Interface Controller family, which uses a reduced instruction set (RISC) and Harvard memory organization, popular in low-power and cost-sensitive embedded applications. Key features of the PIC16LF627-04I/SS include an on-chip 10-bit ADC-free analog comparator module with two comparators and a programmable on-chip voltage reference (VREF), a USART module supporting RS-232/RS-485 communication, two 8-bit timers and one 16-bit timer, an internal oscillator option, and an integrated voltage supervisor. The "LF" prefix denotes the low-voltage (2.0-5.5V) variant of the PIC16F627 family. Industrial temperature grade (-40C to +85C) and in-circuit serial programming (ICSP) support make this part well suited to harsh environments. The PIC16LF62X architecture uses a 14-bit instruction word with a single accumulator (W register) and a 35-instruction set, enabling compact code generation. Its pipeline architecture fetches and executes instructions in a single cycle except for program branches, giving a typical throughput of 4 MIPS at 4 MHz clock. The wide operating voltage range allows direct connection to single-cell lithium, two-cell AA, or regulated 5V rails. Typical applications include low-power remote sensors, battery-powered consumer devices, simple motor control, LED display drivers, and industrial control subsystems. The on-chip analog comparator and VREF are particularly useful for threshold detection without external analog components. Designers should note that the '04' suffix designates a 4 MHz maximum oscillator frequency variant; higher-speed designs should consider the PIC16LF627-20I/SS (20 MHz). For drop-in upgrades with more memory, the PIC16F628A family is pin-compatible and provides 2x program memory with USART enhancements.

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PIC16LF627A-I/P - 8-Bit 20MHz Flash MCU 1.75KB | Microchip
PIC16LF627A-I/P

PIC16LF627A-I/P - 8-Bit 20MHz Flash MCU 1.75KB | Microchip

The Microchip Technology PIC16LF627A-I/P is an 8-bit Flash-based CMOS microcontroller in the PIC16 mid-range family, offering 1.75KB (1K x 14) of Flash program memory, 224 bytes of SRAM, and 128 bytes of EEPROM data memory. Operating at up to 20MHz instruction clock from a 2.0V to 5.5V supply, the device is housed in a 18-pin PDIP through-hole package, making it ideal for breadboard prototyping, education, and legacy designs. The 'LF' suffix denotes the extended low-voltage variant, the 'A' revision adds internal oscillator improvements and USART support, the 'I' indicates the industrial temperature grade of -40C to +85C, and the '/P' package designator specifies the plastic DIP form factor. A PIC16 mid-range microcontroller is a class of 8-bit RISC MCU built around a 14-bit instruction word and a Harvard architecture with separate program and data buses. The PIC16 LF family sits within the broader PIC microcontrollers -> 8-bit microcontrollers -> microcontrollers -> microcontrollers IC hierarchy and is targeted at low-power, cost-sensitive embedded designs where deterministic interrupt response and ease of programming outweigh raw MIPS. Compared to 32-bit Cortex-M parts, PIC16F/LF devices trade raw throughput for ultra-low power, simpler toolchains, and decades of stable code libraries. Key features include a 4MHz internal oscillator (selectable), a USART module for asynchronous serial communication, a Capture/Compare/PWM (CCP) peripheral, two analog comparators with a programmable voltage reference, 16 I/O pins with weak pull-ups, a Watchdog Timer with its own on-chip RC oscillator, Brown-out Detect (BOD), Power-on Reset (POR), Power-up Timer (PWRT), and an Oscillator Start-up Timer (OST). The 14-bit instruction width and 35 single-word instruction set make firmware development and code reuse straightforward across the PIC16 family. The PIC16LF627A-I/P is well suited to low-power applications such as battery-powered sensor nodes, simple motor control, remote controls, and consumer white goods. The internal oscillator eliminates external crystals in many designs, reducing BOM cost and board space. The device's nanoWatt-class sleep modes and low-voltage operation (down to 2.0V) extend battery life in always-on or duty-cycled systems. Typical applications include hobbyist electronics, automotive interior accessories (non-safety), industrial sensor interfaces, and educational platforms where the 18-pin DIP form factor enables easy insertion into breadboards and ZIF sockets. When designing with this MCU, ensure decoupling capacitors are placed close to VDD/VSS pins, and reserve the MCLR pin for either an external reset or an internal weak pull-up configuration.

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PIC16LF627A-I/SO - 8-bit MCU 1.75KB Flash 20MHz SOIC-18 | Microchip
PIC16LF627A-I/SO

PIC16LF627A-I/SO - 8-bit MCU 1.75KB Flash 20MHz SOIC-18 | Microchip

The Microchip Technology PIC16LF627A-I/SO is an 8-bit flash-based CMOS microcontroller (MCU) delivering 20 MHz instruction execution from 1.75 KB of program memory (1K x 14 words) and 224 bytes of RAM, housed in an 18-pin SOIC (SO) package. It is the low-voltage (LF) variant of the PIC16F627A family, targeting applications with 2.0V to 5.5V rails. An 8-bit microcontroller (MCU) is a single-chip computer with an 8-bit data path, on-board program memory (Flash/ROM), CPU, RAM, and peripherals (timers, USART, ADC, comparators, GPIO). It sits in the embedded-control hierarchy: microcontroller -> microprocessor -> semiconductor -> integrated circuit. The PIC16F627A family uses Microchip's RISC instruction set with only 35 single-word instructions, 200 ns instruction cycle at 20 MHz, and upwards code compatibility with PIC16F627, PIC16C62XA, PIC16C5X, and PIC12CXXX devices, simplifying migration paths. Key features include a 4 MHz internal RC oscillator (selectable to 48 kHz LF), 128 bytes of EEPROM data memory, 16 digital I/O lines, a USART module, one capture/compare/PWM (CCP) module, two analog comparators with programmable voltage reference, a watchdog timer with its own RC oscillator, brown-out detect (BOD), power-on reset (POR), power-up timer (PWRT), and oscillator start-up timer (OST). Programmable weak pull-ups on PORTB and weak pull-ups on PORTB reduce BOM cost. The architecture separates program Flash from data EEPROM, allowing in-application re-programming without disturbing live data. The LF suffix extends VDD operation down to 2.0V (versus 2.0V-5.5V for the F version), making this MCU suitable for battery-backed and 3.3V-only designs. The 18-pin SOIC package offers 31.6 C/W typical theta-JA, adequate for industrial-temperature environments (-40C to +85C for the I suffix). Typical applications include low-cost industrial control nodes, sensor signal conditioning with on-chip comparators, low-speed UART bridges, hobbyist/educational projects, and battery-powered instrumentation where the LF core reduces quiescent draw. When designing, note that the LF core's 2.0V minimum VDD rules out 5V-only peripherals; choose the F (PIC16F627A) variant if 2.0V-5.5V is acceptable but you may occasionally drop to 4.5V. Decouple VDD with 0.1 uF + 10 uF ceramics placed within 5 mm of the pins. This page synthesizes distributor pricing, drop-in PIC16 alternatives, and design notes not found in the standalone Microchip datasheet.

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PIC16LF627AT-I/ML - 1.75KB Flash 8-bit MCU, 28-QFN | Microchip
PIC16LF627AT-I/ML

PIC16LF627AT-I/ML - 1.75KB Flash 8-bit MCU, 28-QFN | Microchip

The Microchip PIC16LF627AT-I/ML is a low-power, flash-based 8-bit CMOS microcontroller from the PIC16F family, packaged in a 28-pin QFN with exposed pad (ML) and operating from a 2.0 V to 5.5 V supply (LF variant, 2.3 V to 3.6 V typical for full-speed operation). It integrates 1.75 KB of flash program memory, 224 bytes of SRAM, and 128 bytes of EEPROM, and delivers up to 5 MIPS performance from an internal oscillator or external clock up to 20 MHz. A microcontroller (MCU) is a single-chip computer that combines a CPU, program memory (flash/ROM), working memory (SRAM), non-volatile data memory (EEPROM), and programmable I/O peripherals. Within the broader electronics taxonomy, an MCU sits inside the embedded-computing family, which itself belongs to the Integrated Circuits category alongside memory ICs, logic ICs, and DSPs. Microchip's PIC16F series uses a RISC Harvard architecture and is widely adopted for cost-sensitive embedded designs. Key features include nanoWatt XLP technology for ultra-low sleep currents, an internal 4 MHz / 37 kHz oscillator, 16 I/O pins with individual direction control, a 10-bit ADC, two analog comparators, a USART, and Capture/Compare/PWM modules. The "LF" prefix denotes the low-voltage variant optimized for battery-powered applications, while the "A" suffix indicates the second silicon revision with improved ADC performance and additional peripherals. The PIC16LF627A architecture uses a 14-bit instruction word with a two-stage pipeline, enabling deterministic interrupt latency and predictable code execution. The exposed thermal pad on the QFN package enhances heat dissipation for applications driving higher output currents or operating across extended temperature ranges. Typical applications include battery-powered sensor nodes, remote controls, low-power wireless endpoints, smart-meter peripherals, and small appliance controllers. The wide 2.0-5.5 V supply range and nanoWatt XLP sleep modes make it ideal for IoT edge devices where quiescent current directly impacts battery life. When designing with this device, allocate the flash and EEPROM budgets early; the 1.75 KB program space limits feature-rich applications, so code written in assembly or highly optimized XC8 C is recommended. The exposed pad must be soldered to a properly sized copper pour to meet the thermal resistance specification. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC16LF627AT-I/SO - 8-bit 20MHz 1.75KB Flash MCU | Microchip
PIC16LF627AT-I/SO

PIC16LF627AT-I/SO - 8-bit 20MHz 1.75KB Flash MCU | Microchip

The Microchip Technology PIC16LF627AT-I/SO is a low-power 8-bit PIC microcontroller from the PIC16F627A family, featuring 1.75 KB (1K x 14) of Flash program memory, 224 bytes of RAM, and 128 bytes of EEPROM, housed in a surface-mount 18-pin SOIC package. It integrates a 20 MHz internal oscillator, an enhanced 14-bit instruction set, nanoWatt XLP power-management technology, and a USART/SCI interface for asynchronous serial communication, with a wide 2.0 V to 5.5 V supply range ideal for battery-powered designs. The 'LF' (Low-power / Low-voltage F) suffix denotes a 2.0 V minimum operating voltage and enhanced power-saving modes, while the 'T' suffix indicates Tape & Reel packaging and the 'I' code designates the industrial temperature grade (-40 C to +85 C). A microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, non-volatile program memory (Flash/ROM), I/O peripherals, and often communication interfaces into one package. The PIC16F family of microcontrollers uses a RISC architecture with a small instruction set and one accumulator (W register), providing deterministic timing and low power consumption across simple embedded control tasks. Within the broader IC taxonomy, an MCU belongs to: microcontroller -> embedded processor -> integrated circuit -> semiconductor. The 'F' suffix specifically indicates Flash-based (re-programmable) program memory, distinct from older one-time-programmable (OTP) and ROM-only variants. Key features of the PIC16LF627AT-I/SO include up to 16 digital I/O pins (15 of which are general-purpose), two analog comparators with rail-to-rail inputs, a capture/compare/PWM (CCP) module, a 5-channel 10-bit ADC, and nanoWatt XLP technology with sleep currents typically below 1 uA. Internal peripherals also include a programmable Brown-Out Reset (BOR), Power-On Reset (POR), Watchdog Timer with on-chip oscillator, and a universal synchronous/asynchronous receiver/transmitter (USART). The high-performance 14-bit RISC core executes most instructions in one instruction cycle (200 ns at 20 MHz) and provides 35 single-word instructions plus 14-bit instructions for direct table reads. Architecturally, the PIC16LF627A family separates program and data memory (Harvard architecture) and supports self-programmability under software control. The device is supported by Microchip's MPLAB X IDE, MPLAB XC8 C compiler, and an extensive library of application notes and reference designs that demonstrate typical usage for motor control, sensor interfaces, and low-power remote-control nodes. Field updates are simplified by the ICSP (In-Circuit Serial Programming) interface, which uses only two pins (RB6 and RB7). Typical applications for the PIC16LF627AT-I/SO include remote control transmitters, IR/RF receiver front-ends, battery-powered sensor interfaces, simple motor-speed controllers, and white-goods/HVAC user-interface panels. Its compact 18-pin SOIC footprint and low power consumption make it suitable for cost-sensitive, space-constrained designs that still need on-chip peripherals such as ADC, comparators, and USART. When designing with this MCU, consider that the internal 4 MHz and 20 MHz oscillators can drift with temperature and supply voltage; choose the external crystal mode if your UART timing or ADC sampling budget is tight. Always validate BOR and POR behavior in low-voltage battery designs, since the LF variant has a 2.0 V minimum operating point.

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PIC16LF627T-04/SO - 4MHz 8-bit Flash MCU, 16 I/O, SOIC-18 | Microchip
PIC16LF627T-04/SO

PIC16LF627T-04/SO - 4MHz 8-bit Flash MCU, 16 I/O, SOIC-18 | Microchip

The Microchip Technology PIC16LF627T-04/SO is a FLASH-based 8-bit CMOS microcontroller from the PIC16F627 family, housed in an 18-pin SOIC (SO) package. It delivers up to 4 MHz maximum clock frequency, 1.75 KB (1024 x 14) of FLASH program memory, and 224 bytes of data RAM, with 16 programmable I/O lines for general-purpose interfacing. The "LF" prefix indicates the low-voltage (2.0V-5.5V) variant of the PIC16F627 family, ideal for battery-powered designs. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (FLASH/ROM), data RAM, and peripherals onto one silicon die. Within the broader semiconductor taxonomy, an MCU is a subset of microprocessors; the PIC16F627 family specifically uses Microchip's enhanced mid-range 8-bit RISC core with 35 instructions and a 14-bit instruction word. MCUs sit hierarchically as: microcontroller -> embedded processor -> semiconductor IC, and they form the decision-making heart of nearly every embedded electronic product. Key features of the PIC16LF627T-04/SO include 16 I/O pins with individually programmable direction, two analog comparators with programmable on-chip voltage reference, three timers (Timer0, Timer1, Timer2), a universal synchronous/asynchronous receiver-transmitter (USART), an internal 4 MHz oscillator option, and a watchdog timer with its own on-chip RC oscillator for reliable operation. Brown-out Detect (BOD), Power-on Reset (POR), Power-up Timer (PWRT), and Oscillator Start-up Timer (OST) provide robust system initialization. The device draws microamp-level sleep current, suiting it for low-power applications. Architecturally, the PIC16LF627 uses a Harvard-style modified RISC core with separate program and data buses, allowing instruction fetch and data access in the same cycle. The 14-bit wide FLASH enables single-word instructions and compact code density; peripherals are memory-mapped for predictable access timing. The CMOS process delivers low static power consumption and wide operating voltage tolerance. Typical applications include remote controls, sensor interfaces, small appliance controls, LED lighting drivers, battery-powered instrumentation, and IoT edge nodes. The combination of analog comparators, PWM, and USART supports closed-loop motor control, signal conditioning, and wired connectivity. In a 4-layer SOIC layout, the chip can serve as a cost-optimized main controller for sub-$10 end products. When designing with this part, ensure decoupling capacitors (typically 100 nF) are placed within 5 mm of VDD/VDD2, and reserve the MCLR pin through a proper reset circuit (10 kohm pull-up to VDD with a diode to VPP for in-circuit serial programming). Use MPLAB X IDE with XC8 compiler for software development. This page synthesizes distributor pricing, drop-in alternatives in the SOIC-18 footprint, and practical design notes not found in the manufacturer datasheet alone, providing an engineering-ready view for procurement and design validation.

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PIC16LF627T-04I/SO - 4MHz 8-bit Flash MCU, 1.75KB | Microchip
PIC16LF627T-04I/SO

PIC16LF627T-04I/SO - 4MHz 8-bit Flash MCU, 1.75KB | Microchip

The Microchip Technology PIC16LF627T-04I/SO is an 8-bit flash-based CMOS microcontroller from the PIC16F family, featuring a RISC core running up to 4 MHz instruction rate and housed in an 18-pin SOIC package supplied on tape and reel. It integrates 1.75 KB (1K x 14 words) of flash program memory, 224 bytes of SRAM, and 128 bytes of EEPROM data memory, with 16 general-purpose digital I/O pins supporting individual direction control and high-current sink/source for direct LED drive. 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, with non-volatile flash program memory that can be re-written in-circuit. The PIC16LF627T sits within the broader hierarchy: microcontroller -> embedded MCU -> 8-bit MCU -> PIC16 family -> PIC16F6xx sub-family, where 'LF' denotes a low-voltage (2.0-3.6 V typical) variant optimized for battery-powered designs. Flash-based MCUs replaced older OTP and ROM parts because they support field firmware updates and shorter development cycles. Key features include a wide operating voltage range of 2.0 V to 5.5 V (the LF prefix), a 4 MHz internal oscillator option, two analog comparators with a programmable on-chip voltage reference, a Watchdog Timer with its own internal RC oscillator, Power-on Reset, Brown-out Detect, and Power-up Timer. The 16 I/O pins can be individually configured with weak programmable pull-ups on PORTB, and the device supports in-circuit serial programming (ICSP) for field updates. Two 8-bit and one 16-bit timer/counter modules provide flexible event timing. Architecturally, the PIC16LF627 uses a Harvard RISC architecture with a 14-bit instruction word and a single accumulator (W) plus 224-byte data RAM. The integrated USART (SCI) with dedicated baud-rate generator simplifies asynchronous serial communication, while the analog comparator block enables threshold detection and small-signal conditioning without external op-amps. The internal 4 MHz RC oscillator reduces BOM cost by eliminating an external crystal in many designs, though an external crystal/oscillator mode remains available for timing-critical applications. Typical applications include battery-powered sensor nodes, simple appliance control, IR remote transmitters/receivers, low-cost LED controllers, automotive body electronics (non-safety), and industrial monitoring where cost and low quiescent current dominate design priorities. The 'LF' voltage range (down to 2.0 V) makes it well-suited to 2xAA or coin-cell powered devices. When designing with this MCU, remember that the 'T' suffix denotes tape-and-reel packaging, the '04' speed grade indicates the 4 MHz maximum instruction rate, and the 'I' indicates the industrial -40C to +85C temperature range. Code-protect fuses should be configured for production units to prevent firmware readout. This page synthesizes distributor pricing, drop-in PIC16F6xx alternatives, and practical design notes not found in the manufacturer datasheet alone, providing a 360-degree reference for engineers selecting, sourcing, and qualifying this part.

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PIC16LF627T-04I/SS - 4MHz PIC16 8-bit MCU, 1.75KB Flash | Microchip
PIC16LF627T-04I/SS

PIC16LF627T-04I/SS - 4MHz PIC16 8-bit MCU, 1.75KB Flash | Microchip

The Microchip Technology PIC16LF627T-04I/SS is an 8-bit RISC Flash microcontroller from the PIC16F62X family, delivering 4 MIPS performance at 4 MHz with 1.75 KB (1K x 14) of Flash program memory and 224 bytes of SRAM data memory. Housed in a 20-pin SSOP (5.30 mm body) surface-mount package, it operates from a wide 2.0V to 5.5V supply range that supports 2.5V, 3.3V, and 5V rails, making it suitable for both battery-powered and line-powered designs. The 04 speed grade denotes a 4 MHz maximum oscillator input, and the I suffix denotes an industrial -40C to +85C operating temperature range. What is an 8-bit Flash microcontroller? An 8-bit Flash microcontroller is a small, self-contained computer-on-a-chip that integrates a CPU, non-volatile Flash program memory, volatile SRAM, and peripherals such as timers, comparators, and I/O. Within the broader taxonomy, it sits under microcontroller -> embedded controller -> semiconductor IC. Flash-based MCUs dominate low-power and cost-sensitive designs because they support in-circuit re-programming without an external ROM, and the 8-bit class remains popular where deterministic interrupt response and code density matter more than raw throughput. Key features of the PIC16LF627T-04I/SS include a Harvard RISC architecture with only 35 single-cycle instructions, 16 bidirectional digital I/O pins with high-current sink/source for direct LED drive, two analog comparators with programmable on-chip voltage reference, a 16-bit timer/counter (TMR1) plus an 8-bit timer (TMR0), a Watchdog Timer with its own on-chip RC oscillator, Power-on Reset, Brown-out Detect, and programmable weak pull-ups on PORTB. The integrated USART supports RS-232/RS-485 communication without an external transceiver for short-run links. Architecturally, the device uses a 14-bit instruction word with an 8-bit data path and a separate program/data bus, eliminating the Von Neumann bottleneck. The Flash program memory supports up to 100K erase/write cycles and retains data for more than 40 years, enabling field-upgradable firmware. The CMOS process combined with nanoWatt-style power management delivers typical active current below 2 mA at 4 MHz, supporting portable and remote applications. Typical applications include industrial control logic, sensor signal conditioning, appliance front-panel controllers, automotive interior accessories (non-safety), battery-powered instrument front-ends, and remote sensor nodes. The integrated comparators make it a strong fit for threshold detectors and analog-front-end triggers. Designers should note that the SSOP-20 footprint requires careful thermal relief on the PCB and that decoupling capacitors (0.1 uF plus 10 uF bulk) must be placed within 5 mm of VDD/VSS to ensure stable Brown-out Detect behavior across load transients. This page combines distributor inventory and pricing, drop-in cross-reference alternatives, and engineering design notes beyond the manufacturer datasheet summary.

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PIC16LF628-04I/P - 4MHz 8-bit Flash MCU, 18-PDIP | Microchip
PIC16LF628-04I/P

PIC16LF628-04I/P - 4MHz 8-bit Flash MCU, 18-PDIP | Microchip

The Microchip Technology PIC16LF628-04I/P is an 8-bit Flash-based CMOS microcontroller from the mid-range PIC16 family, packaged in a 18-pin PDIP (through-hole) tube format. It features 3.5 KB (2K x 14) of Flash program memory, 224 bytes of RAM, and 128 bytes of EEPROM data memory, all driven by a RISC architecture executing 35 single-word instructions in 200 ns. Operating at 4 MHz maximum clock speed, the LF variant supports a wide 2.0V to 5.5V supply range suited to battery-powered and 3.3V designs, while offering 16 digital I/O pins with individual direction control and high-current sink/source for direct LED drive. A microcontroller (MCU) is a single-chip computer integrating a processor core, program memory, data memory, and programmable I/O peripherals. The PIC16LF628 sits within Microchip's mid-range 14-bit PIC family, which sits hierarchically inside the broader 8-bit PIC architecture, itself a subset of the broader microcontroller category of embedded computing ICs. The integrated EEPROM and Flash allow field-upgradeable firmware storage without external memory. Key features include a Power-on Reset (POR), Power-up Timer (PWRT) and Oscillator Start-up Timer (OST), Brown-out Detect (BOD) for safe low-voltage operation, and a Watchdog Timer (WDT) with its own on-chip RC oscillator for reliable operation. Two analog comparators with a programmable on-chip voltage reference and input multiplexing enable signal-conditioning tasks without external analog ICs. The device also offers an internal 4 MHz RC oscillator, programmable weak pull-ups on PORTB, and a multiplexed MCLR pin. The PIC16LF628 is fabricated on a low-power CMOS process, with nanoWatt-style power management extending battery life in standby. Program memory endurance is rated for typical Flash write/erase cycles per Microchip specifications, while EEPROM endurance supports separate write-cycle ratings. The instruction set is fully compatible with the PIC16 mid-range family, easing code portability to larger pin-count siblings. Typical applications include industrial control logic, appliance controls, sensor signal conditioning, low-power remote controls, battery-powered instrumentation, and small consumer electronics where a small through-hole footprint is desirable for hand-prototyping or service-replaceable modules. Designers often choose the PDIP package for development boards and field-replaceable modules where socketed installation simplifies firmware iteration. When designing with this device, allocate pins carefully: the ICSP clock and data pins are multiplexed with PORTB, so any in-circuit programmer must be considered when laying out ISP headers. Confirm the LF voltage range covers your battery's end-of-life voltage, and budget decoupling capacitance near VDD. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC16LF628-04I/SS - 8-Bit 4MHz PIC MCU, 3.5KB Flash | Microchip
PIC16LF628-04I/SS

PIC16LF628-04I/SS - 8-Bit 4MHz PIC MCU, 3.5KB Flash | Microchip

The Microchip Technology PIC16LF628-04I/SS is an 8-bit Flash-based CMOS microcontroller from the PIC16F family, operating at up to 4 MHz instruction rate from a 2.0–5.5 V supply and packaged in a 20-pin SSOP (5.30 mm body, 0.65 mm pitch). It integrates 3.5 KB (2K × 14) of Flash program memory, 224 bytes of RAM, and 128 bytes of EEPROM, with 16 general-purpose digital I/O pins, two analog comparators with programmable on-chip voltage reference, a USART, and a Capture/Compare/PWM (CCP) module. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, I/O peripherals, and clock/timer subsystems into one package. PIC16 series microcontrollers use Microchip's enhanced mid-range RISC Harvard architecture with a 14-bit instruction word optimized for deterministic, single-cycle execution of most opcodes, making the family well-suited for compact, low-power embedded control. The 'LF' prefix denotes an extended-voltage variant covering 2.0–5.5 V, and the 'I' suffix indicates the industrial temperature range (-40 °C to +85 °C). Key features of the PIC16LF628-04I/SS include an internal 4 MHz RC oscillator (calibrated to ±1%), a Watchdog Timer with its own on-chip RC oscillator, Brown-out Detect (BOD), Power-up Timer (PWRT) and Oscillator Start-up Timer (OST) for reliable reset behavior, programmable weak pull-ups on PORTB, and an ICSP™ (In-Circuit Serial Programming) interface. The device supports sleep mode with wake-on-change I/O for battery-friendly operation, and each I/O pin can source/sink up to 25 mA for direct LED drive. Architecturally the part provides two 8-bit timers (Timer0, Timer2) and one 16-bit timer (Timer1), a 10-bit resolution PWM channel, and an internal voltage reference programmable for the comparator module. These resources make the device a strong fit when designers need more analog and serial capability than the PIC12/PIC16F627 baseline offers, but do not need the ADC peripheral or larger Flash of the PIC16F88/PIC16F88A family. Typical applications include appliance control boards, sensor signal conditioning front-ends, low-cost motor/relay drivers, LED lighting controllers, automotive body electronics (non-safety), remote controls, and battery-powered instruments. With 16 I/O, a USART, and two analog comparators, the part bridges the gap between the smaller PIC16F627 and the larger PIC16F88A in cost-sensitive 20-pin designs. A key design consideration is supply decoupling: place a 0.1 µF ceramic bypass capacitor within 5 mm of VDD, and add a bulk capacitor (≥10 µF) on the main rail. The MCLR pin must be tied to VDD through a 10 kΩ pull-up unless ICSP is used, in which case the standard ICSP circuit applies. Avoid leaving unused I/O pins floating — configure them as outputs or enable the internal weak pull-ups to minimize current consumption in sleep. This page synthesizes distributor pricing, verified pin-compatible drop-in alternatives, and practical PCB layout guidance not consolidated in the manufacturer datasheet, giving procurement and embedded engineers a single decision-ready reference for the PIC16LF628-04I/SS.

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PIC16LF628A-I/ML - 8-bit 20MHz 3.5KB Flash MCU 28-QFN | Microchip
PIC16LF628A-I/ML

PIC16LF628A-I/ML - 8-bit 20MHz 3.5KB Flash MCU 28-QFN | Microchip

The Microchip Technology PIC16LF628A-I/ML is a FLASH-based 8-bit CMOS microcontroller built on the PIC16 RISC core, offering 20 MHz operation, 3.5 KB (2K x 14) of program Flash memory and 224 bytes of SRAM, in a 28-pin QFN (6x6 mm) package with an exposed thermal pad. The 'LF' family variant is the low-power counterpart to the PIC16F628A, designed to operate across a wide 2.0 V to 5.5 V supply range with nanoWatt sleep current typically used in battery-powered and energy-harvesting designs. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), working RAM, non-volatile EEPROM, and a set of peripherals (timers, ADC, USART, comparators) into one package. The PIC16 family is one of Microchip's mid-range MCU architectures, positioned between the baseline PIC10/12/16 and the high-performance PIC18/PIC24/dsPIC families in the broader embedded microcontroller hierarchy (8-bit MCU -> microcontroller -> embedded IC -> semiconductor). The 'LF' variant targets low-voltage and ultra-low-power applications where every microamp of quiescent current matters. Key features include 128 bytes of data EEPROM, 16 digital I/O pins, two analog comparators, a capture/compare/PWM (CCP) module, a USART with hardware addressing, and a 10-bit ADC on selected ports. Internal 4 MHz and 37 kHz oscillators are provided, and an external oscillator is supported. The 35 instructions set and 14-bit instruction word keep code density high while the Harvard RISC pipeline executes most instructions in one instruction cycle. Typical applications include remote controls, sensor interface modules, small motor/relay drivers, low-end security keypads, hobby robotics, and battery-powered instrumentation where the wide 2.0-5.5 V supply simplifies single-cell Li-ion or 2x AA design. The 28-QFN (ML) footprint also enables compact PCB layouts in space-constrained consumer and IoT nodes. When designing with this part, allocate the 16 GPIO wisely - several pins are multiplexed with the ADC, comparators, oscillator and the ICP/CCP/peripheral functions. Place decoupling on VDD/AVDD/VSS/AVSS, follow Microchip's QFN-6x6 land pattern for thermal relief, and use ICD/ICSP headers for in-circuit debug. This page combines distributor pricing, drop-in 28-QFN alternatives, and design notes to give a faster path to a BOM decision than the manufacturer datasheet alone.

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PIC16LF628A-I/P - 8-Bit 20MHz Flash MCU 3.5KB | Microchip
PIC16LF628A-I/P

PIC16LF628A-I/P - 8-Bit 20MHz Flash MCU 3.5KB | Microchip

The Microchip Technology PIC16LF628A-I/P is an 8-bit RISC PIC16 family microcontroller featuring 3.5KB (2K x 14) of Flash program memory, 224 bytes of SRAM, and 128 bytes of EEPROM data memory, housed in a 18-pin PDIP (0.300 inch, 7.62mm) through-hole package. It executes instructions in a 200 ns cycle time (20 MHz oscillator) and operates from 2.0V to 5.5V with nanoWatt technology for ultra-low-power sleep modes. An 8-bit microcontroller (MCU) is a small computing system on a single integrated circuit that integrates a CPU, RAM, Flash program memory, EEPROM, timers, and peripherals such as ADC, UART, and GPIO. PIC microcontrollers follow the RISC (Reduced Instruction Set Computer) philosophy with only 35 single-word instructions, simplifying code generation in assembly or C (XC8). The PIC16 family sits between the baseline PIC10/12/16 series and the enhanced PIC18/dsPIC families in the Microchip 8-bit hierarchy, making it a workhorse for cost-sensitive embedded designs. Key features include 16 digital I/O pins capable of driving LEDs directly, two analog comparators with programmable on-chip reference, a USART module for serial communication, capture/compare/PWM (CCP) modules, and three timers (Timer0, Timer1, Timer2). The internal 4 MHz oscillator eliminates the need for an external crystal in many designs, while the internal 48 kHz LF oscillator enables the nanoWatt sleep modes drawing only nA-level standby current. Architecturally, the PIC16LF628A uses a Harvard bus structure with separate code and data paths, a 14-bit instruction word, and 8-bit data paths. The 'LF' variant supports the wide 2.0V to 5.5V operating range needed for battery-powered designs, distinguishing it from the PIC16F628A which is specified 2.0V to 5.5V with different Flash endurance and voltage characteristics. The part is fully software- and pin-compatible with the PIC16F628A, the PIC16C62XA, the PIC16C5X, and the PIC12CXXX families. Typical applications include appliance controls, hobby and educational projects, sensor signal conditioning, low-power remote controls, automotive body electronics, and any cost-sensitive embedded node requiring Flash reprogrammability. Designers choose it when 14-bit PIC instruction set familiarity, broad third-party tool support, and wide memory headroom for firmware updates matter. When designing, ensure the MCLR pin is pulled high through a 10 kohm resistor for normal run mode and consider using the internal oscillator with a 100 nF decoupling capacitor at VDD to suppress digital switching noise from corrupting the analog comparator reference. The CCP and USART peripherals share pins in some configurations, so re-read the pin allocation table before committing to a board layout. This page synthesizes distributor pricing, a same-package alternative matrix, and practical design notes not found in the manufacturer datasheet, giving an engineer a one-stop decision tree for selecting, sourcing, or replacing the PIC16LF628A-I/P.

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PIC16LF628A-I/SO - 8-bit MCU, 3.5KB, 20MHz, nanoWatt | Microchip
PIC16LF628A-I/SO

PIC16LF628A-I/SO - 8-bit MCU, 3.5KB, 20MHz, nanoWatt | Microchip

The Microchip Technology PIC16LF628A-I/SO is an 8-bit flash-based CMOS microcontroller in the PIC16 family, delivering 20 MHz (200 ns instruction cycle) performance from a 3.5 KB (2K x 14) flash program memory with 224 bytes of RAM and 128 bytes of EEPROM data memory, housed in an 18-pin SOIC (SO) wide-body package. It is part of Microchip's nanoWatt Technology portfolio, integrating a 4 MHz internal oscillator, a 16-bit instruction set with only 35 single-word instructions, and 16 digital I/O pins. A PIC microcontroller (Programmable Interface Controller) is a family of 8-bit, 16-bit, and 32-bit RISC microcontrollers from Microchip Technology that use a Harvard architecture with separate program and data buses. The PIC16 mid-range family sits within the broader PIC8 microcontroller -> RISC microcontroller -> microcontroller hierarchy, and is widely used in cost-sensitive embedded control applications requiring deterministic execution, low power consumption, and ease of programming via Microchip's MPLAB X IDE ecosystem. Key features include 2.5V to 5.5V wide operating voltage (LF denotes the low-voltage F-version), internal 4 MHz oscillator with software-selectable 48 kHz LF oscillator for ultra-low-power modes, 10-bit ADC, two analog comparators with rail-to-rail inputs, USART, capture/compare/PWM (CCP) module, and nanoWatt power management with sleep current as low as 100 nA typical. The 18-pin SOIC package is industry-standard and supports both hand-soldering and reflow manufacturing. The PIC16LF628A uses an enhanced mid-range 14-bit instruction core with hardware multiply, interrupt context save/restore, and In-Circuit Serial Programming (ICSP) via two pins. It is upward source-compatible with PIC16F628, PIC16C62XA, PIC16C5X, and PIC12CXXX devices, enabling easy migration and reuse of legacy code. The flash program memory supports 100K erase/write cycles typical and 40-year data retention. Typical applications include consumer electronics remote controls, battery-powered sensor nodes, automotive body and interior modules, small appliance motor control, security and alarm system keypads, and industrial control logic. The wide 2.5V-5.5V supply range makes it well suited for 3.3V and 5V mixed-voltage designs. Design consideration: ensure decoupling capacitors (100 nF ceramic plus 10 uF bulk) are placed within 5 mm of the VDD pin and that unused I/O pins are configured as outputs with low level to minimize sleep current. Designers should also budget for the 128 bytes of EEPROM write endurance (100K cycles typical) when designing parameter storage subsystems. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, including a curated comparison table, application-specific design recommendations, and verified cross-brand equivalents.

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PIC16LF628A-I/SS - 8-bit Flash MCU 3.5KB 224B RAM SSOP-20 | Microchip
PIC16LF628A-I/SS

PIC16LF628A-I/SS - 8-bit Flash MCU 3.5KB 224B RAM SSOP-20 | Microchip

The Microchip Technology PIC16LF628A-I/SS is an 8-bit Flash-based CMOS microcontroller from the PIC16 family (PIC16F6XX series), built on Microchip's RISC architecture with nanoWatt power management technology, delivered in a 20-pin SSOP (Shrink Small Outline Package, 0.300 inch body width) for surface-mount assembly. It integrates 3.5 KB of program memory, 224 bytes of RAM, and 128 bytes of data EEPROM, executes instructions at 200 ns per cycle from a 20 MHz external clock, and offers 16 digital I/O pins plus a hardware USART, internal 4 MHz oscillator, and a 10-bit ADC-less analog comparator for analog signal conditioning. The "LF" prefix denotes an extended low-voltage operating range of 2.0V to 5.5V, with active supply currents below 100 µA/MIPS in real-world firmware profiles thanks to nanoWatt sleep, run, and idle modes. An 8-bit microcontroller (MCU) is a single-chip computer with an 8-bit data path, integrating a CPU, non-volatile program memory (Flash), volatile data RAM, non-volatile data EEPROM, and peripheral IP such as timers, USART, ADC, comparators and I/O pins. PIC16F microcontrollers belong to the wider class of RISC microcontrollers -> microcontrollers -> embedded processors -> semiconductors, sitting beneath 32-bit Cortex-M parts in compute power but above bare timer/logic ICs in programmable flexibility. They are typically deployed for state-machine control, sensor conditioning, and protocol bridging in cost-sensitive 5V/3.3V designs. Key differentiating features include 35 single-word instructions for easy programming in MPLAB X IDE, ICSP (In-Circuit Serial Programming) for field updates, a 100,000 erase/write cycle Flash endurance rating, and nanoWatt modes that drop sleep current to roughly 100 nA. The integrated analog comparator eliminates an external op-amp in many sensor front-ends, and 128 bytes of EEPROM provides non-volatile parameter storage without an external serial EEPROM. Typical applications include industrial control loops, remote sensor nodes, white-goods and appliance control boards, automotive body electronics (non-safety), low-power IoT edge devices, battery chargers, and hobby/maker projects where PIC16 heritage code is being migrated from older through-hole DIP packages to surface-mount production boards. Designers appreciate the migration path because the SSOP-20 footprint preserves the same pin-out as the legacy 18-pin PIC16F628 family extended to 20 pins. When designing with this MCU, allocate the 224-byte RAM budget carefully - the 8-bit stack and PIC16's banking scheme place hard ceilings on local arrays and string processing. Decouple VDD with a 0.1 µF ceramic capacitor adjacent to the package, and keep the MCLR pin pulled to VDD through a 10 kΩ resistor unless in-circuit debug is required. This page synthesizes distributor pricing, pin-compatible drop-in alternatives within the SSOP-20 footprint, and practical design notes not consolidated in the manufacturer datasheet.

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