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PIC16LF818T-E/SO - 8-bit 10MHz 1.75KB Flash MCU | Microchip
PIC16LF818T-E/SO

PIC16LF818T-E/SO - 8-bit 10MHz 1.75KB Flash MCU | Microchip

The Microchip Technology PIC16LF818T-E/SO is an 8-bit PIC RISC microcontroller delivering 10 MIPS performance from a 10 MHz internal clock, packaged in an 18-pin SOIC (0.295 inch / 7.50 mm width) for surface-mount assembly. The device integrates 1.75 KB (1K x 14) of FLASH program memory, 128 bytes of data SRAM, and 128 bytes of EEPROM data memory. Tape-and-reel packaging is indicated by the 'T' suffix, making it optimized for high-volume automated assembly lines. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O into one package, and PIC16F-series parts are mid-range 8-bit RISC devices widely used in cost-sensitive embedded control. Within the broader semiconductor taxonomy, the PIC16LF818 sits at: microcontroller -> 8-bit MCU -> PIC mid-range family -> FLASH-based MCU. This positioning explains its popularity for both prototyping and production designs. Key features include nanoWatt technology for low-power operation, an internal 31 kHz to 8 MHz oscillator, and an operating voltage range of 2.0V to 5.5V (LF variant). The 'LF' designation in the part number confirms the wide-range low-voltage core; the 'E' suffix designates the extended industrial temperature grade of -40C to +125C. The part supports up to 16 digital I/O pins, three timers, a 10-bit ADC with up to 5 channels, and an integrated synchronous serial port configurable for SPI or I2C. Architecturally, the PIC16LF818 employs a Harvard-style RISC core with separate code and data buses, a 14-bit wide instruction word, and a single-cycle hardware stack that accelerates deterministic interrupt handling. The CMOS FLASH process allows field re-programmability and in-circuit serial programming (ICSP) through two pins, eliminating external programming sockets. An internal 8 MHz and 31 kHz oscillator pair, plus PLL selectors, cover several wake-up and low-power scenarios with no extra latency. Typical applications span consumer electronics, industrial automation, low-power sensor interfaces, and automotive subsystems requiring an extended temperature grade. Designers select this MCU for compact 18-pin board layouts that still need ADC sampling, EEPROM-backed parameter storage, and serial communication to a host processor. When designing with this part, ensure decoupling capacitors of at least 0.1 uF are placed adjacent to VDD/AVDD and VSS/AVSS pins. The ICSP programming pins (RB6/RB7) should be reserved with appropriate isolation if the application uses those pins for digital I/O during normal operation. This page synthesizes distributor pricing, drop-in same-package alternatives drawn from the PIC16LF818 family, and practical design notes not found in the manufacturer datasheet, providing engineers and procurement teams an at-a-glance reference.

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PIC16LF818T-I/ML - 8-bit PIC MCU, 10MHz, 1.75KB Flash, 28-QFN | Microchip
PIC16LF818T-I/ML

PIC16LF818T-I/ML - 8-bit PIC MCU, 10MHz, 1.75KB Flash, 28-QFN | Microchip

The Microchip Technology PIC16LF818T-I/ML is an 8-bit PIC microcontroller built on Microchip's Mid-Range 14-bit instruction set architecture, delivering 10 MIPS performance at 10 MHz core clock and packaged in a 28-pin QFN (6x6 mm) with exposed thermal pad. It integrates 1.75 KB (1K x 14) of Flash program memory, 128 bytes of SRAM data memory, and 128 bytes of EEPROM, plus 16 digital I/O lines organized across multiple ports for mixed analog/digital designs. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, working RAM, and peripherals onto one silicon die. Microchip's PIC16F family uses an enhanced Harvard RISC architecture with a 14-bit instruction word, which simplifies instruction decoding and produces compact, deterministic code suited for cost-sensitive embedded control. These MCUs sit below 32-bit ARM Cortex-M parts in computational capability but excel at deterministic I/O control, low power, and small form-factor designs, making them a workhorse for consumer white goods, sensors, and industrial control modules. The PIC16LF818T-I/ML runs from 2.0V to 5.5V (LF = low-voltage F-series variant), has 10 ADC channels at 10-bit resolution, a 3-channel enhanced capture/compare/PWM module, two 8-bit timers plus one 16-bit timer, and hardware USART/MSSP (SPI/I2C) peripherals. The NanoWatt technology suite (extended WDT, sleep, and INT-on-change modes) plus a low-power 32 kHz internal oscillator lets the device achieve quiescent currents under 1 microamp in sleep, which is critical for battery-backed sensor nodes. The QFN-28 package with EP improves thermal dissipation and PCB density versus DIP/SOIC variants. Typical applications include handheld instrumentation, sensor signal conditioning with on-chip ADC, low-power remote controls, battery chargers, motor-driver front-ends, and IoT edge nodes where deterministic control and ultra-low sleep current outweigh the need for higher MIPS. The 28-QFN footprint also makes the device a drop-in upgrade path for designs migrating from older PIC16F84/PIC16F628-era boards.

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PIC16LF818T-I/SO - 8-bit MCU 1.75KB Flash 10MHz SOIC-18 | Microchip
PIC16LF818T-I/SO

PIC16LF818T-I/SO - 8-bit MCU 1.75KB Flash 10MHz SOIC-18 | Microchip

The Microchip Technology PIC16LF818T-I/SO is an 8-bit PIC16-family flash microcontroller delivering 10 MIPS performance from a 1.75 KB (1K x 14) program memory and 128 bytes of SRAM, housed in an 18-pin SOIC (SO) package rated 1.8 V to 3.6 V with industrial -40C to +85C temperature range. Its core features include a 20 MHz maximum clock source, 16 programmable digital I/O lines, integrated 10-bit ADC, PWM, I2C/SPI/USART communication, internal 8 MHz oscillator, and 128 bytes of EEPROM data memory, supporting a total of 25 I/O-related pins in the larger package option. The 'LF' prefix denotes the low-voltage (F) process variant optimized for battery-powered operation, while the 'T' suffix indicates tape-and-reel packaging and 'I' marks the industrial temperature grade. Background — what is a PIC16 microcontroller? An 8-bit microcontroller (MCU) is a single-chip computer integrating a CPU core, non-volatile program memory (Flash), working RAM, EEPROM data memory, digital I/O, and on-chip peripherals such as timers, ADC, and serial interfaces. The PIC16 family uses Microchip's RISC architecture with only 35 single-word instructions, executing most instructions in 200 ns at 20 MHz clock, and is widely used in cost-sensitive embedded control where deterministic behavior and low power matter more than raw compute throughput. The PIC16LF818 specifically sits in the PIC16 mid-range family offering 14-bit instruction words, ADC, and enhanced peripherals. Key features include 1.75 KB Flash, 128 B SRAM, 128 B EEPROM, 10-bit multi-channel ADC, two PWM modules, a USART, an SSP supporting SPI and I2C (master/slave), two 8-bit timers plus one 16-bit timer, internal 8 MHz oscillator, and in-circuit serial programming (ICSP). The 16-pin I/O budget in the 18-SOIC package provides ample connectivity for sensors, switches, LEDs, and serial peripherals. The PIC16LF818 employs a Harvard-architecture RISC core with separate program and data buses, single-cycle hardware multiply via the 8x8 hardware multiplier, and an internal PLL-free clock tree selectable between INTOSC and external crystal/RC. Its nanoWatt technology provides multiple idle/sleep modes with wake-on-interrupt, and the LF process delivers low quiescent current for battery-powered IoT endpoints. Typical applications include battery-powered sensor nodes, low-end consumer electronics, simple motor-control BLDC/PWM drivers, USB-to-UART bridge front-ends, LED controllers, and industrial sensor interfaces. The combination of Flash, EEPROM, ADC and serial peripherals allows compact single-chip implementations. When designing with this device, ensure that the application firmware budget fits within 1.75 KB Flash and 128 B SRAM — code and stack overflow will halt the part. Use the ICSP interface for field updates; reserve pins RA0/RA1 or RB6/RB7 to avoid contention with the in-circuit programmer during code development. Confirm the supply rail stays within 1.8-3.6 V and that decoupling capacitors are placed within 5 mm of VDD/SS pins.

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PIC16LF818T-I/SS - 1.75KB Flash MCU, 10MHz, SSOP-20 | Microchip
PIC16LF818T-I/SS

PIC16LF818T-I/SS - 1.75KB Flash MCU, 10MHz, SSOP-20 | Microchip

The Microchip Technology PIC16LF818T-I/SS is an 8-bit CMOS Flash-based PIC microcontroller housed in a 20-pin SSOP (SS) package with 1.75KB (1K x 14) of Flash program memory, 128 bytes of SRAM, and 16 digital I/O pins. It executes instructions at a 10MHz maximum clock rate with a 200ns instruction cycle, runs from a wide 2.0V to 5.5V supply, and integrates a 10-bit ADC, multiple timers, and an internal oscillator. The "/SS" suffix denotes the SSOP-20 surface-mount package, the "T" denotes Tape & Reel packaging, and the "I" indicates the industrial -40C to +85C temperature grade. A PIC (Peripheral Interface Controller) microcontroller is a compact, Harvard-architecture 8-bit MCU originally developed by Microchip. PIC MCUs sit in the broader hierarchy of: microcontroller -> embedded processor -> semiconductor. They are optimized for deterministic real-time control with low power consumption and small code footprint, making them ideal for embedded control loops, sensor reading, and simple human-machine interfaces. Key features of the PIC16LF818 include 128 bytes of EEPROM data memory, an 8MHz internal oscillator, nanoWatt power management with multiple sleep modes, a USART for serial communication, an I2C/SPI master/slave synchronous serial port, capture/compare/PWM modules, and nanoWatt technology for low standby current. These peripherals integrate so that a single chip can replace discrete logic plus a timer plus a UART. Architecturally the PIC16LF818 uses a 14-bit instruction word, separate program and data buses (Harvard architecture), a hardware multiplier-free ALU, and a programmable code-protection scheme. The wide 2.0V-5.5V operating range allows direct operation from a 3.3V rail or a 4.5V battery stack without an additional regulator. Typical applications include low-power sensor nodes, consumer appliance controls, industrial telemetry, LED lighting controllers, battery chargers, and small motor/H-bridge drivers. The wide VDD range also suits USB-bus-powered toys and wearable devices. When designing with this part, ensure the MCLR pull-up is present for proper reset behavior, place the decoupling 100nF capacitor within 3mm of the VDD pin, and use the ICSP programming footprint to allow in-circuit firmware updates. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC16LF818T-I/SSTSL - 8-bit MCU 1.75KB Flash 128 RAM 20-SSOP | Microchip
PIC16LF818T-I/SSTSL

PIC16LF818T-I/SSTSL - 8-bit MCU 1.75KB Flash 128 RAM 20-SSOP | Microchip

The Microchip Technology PIC16LF818T-I/SSTSL is a low-power 8-bit PIC microcontroller featuring 1.75KB (1K x 14) of Flash program memory, 128 bytes of SRAM, and 128 bytes of EEPROM data memory, housed in a 20-pin SSOP package supplied on tape-and-reel. It executes instructions at 200 ns per cycle from a 10 MHz internal or external oscillator, and integrates 16 digital I/O pins plus a 10-bit ADC with multiple input channels. What is a PIC16 8-bit microcontroller? A PIC16 microcontroller (MCU) is a Harvard-architecture CMOS flash-based device built around the PIC mid-range instruction set, providing deterministic real-time control in a compact footprint. Within the broader taxonomy, PIC16 MCUs sit between PIC10/12/14/16 family members (8-bit) and PIC18/PIC24/dsPIC33 (16-bit) families, all under the umbrella of embedded microcontrollers and the wider category of integrated circuits (semiconductor -> microcontroller -> 8-bit MCU -> PIC16 family). The 'LF' prefix denotes the extended low-voltage variant, allowing operation down to 2.0 V, which is critical for battery-powered and energy-harvesting designs. Key differentiating features of the PIC16LF818T-I/SSTSL include a wide 2.0 V to 5.5 V operating range, 16 general-purpose I/O, an internal 8 MHz oscillator (calibrated +/-1%), two analog comparators, a 10-bit ADC with up to 5 channels, two 8-bit timers plus one 16-bit timer, and a synchronous serial port configurable for SPI or I2C. The 'I' suffix indicates the industrial -40C to +85C temperature grade, while 'SL' denotes a 20-SSOP tape-and-reel packing variant. Architecturally the device pairs a 14-bit wide program word with an 8-bit data path, supported by a 35-instruction RISC-like set, hardware stack, and integrated brown-out reset plus power-on reset. Compared with larger PIC18 devices, the PIC16LF818T-I/SSTSL trades program memory depth for the smallest pin-count SSOP footprint in the family, making it ideal when PCB real estate is at a premium but full peripheral integration is still required. Typical applications include sensor node signal conditioning, low-power IoT end-node controllers, battery management slave controllers, industrial 4-20 mA loop peripherals, and consumer white-goods user interfaces. Designers typically pair it with a PICkit programmer for in-circuit serial programming and use MPLAB X IDE with the XC8 compiler for firmware development. When designing, verify that the application's peripheral mix does not exceed the SSOP-20 pin budget, and add a 0.1 uF decoupling capacitor within 5 mm of VDD. The internal 8 MHz oscillator reduces BOM cost but offers less accuracy than an external crystal. This page synthesizes distributor pricing across 7 channels, drop-in alternatives, and design notes not collated in the manufacturer datasheet.

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PIC16LF819-I/ML - 8-bit MCU, 3.5KB Flash, 256 RAM | Microchip 28-QFN
PIC16LF819-I/ML

PIC16LF819-I/ML - 8-bit MCU, 3.5KB Flash, 256 RAM | Microchip 28-QFN

The Microchip Technology PIC16LF819-I/ML is an 8-bit RISC microcontroller from the PIC® PIC16 family, offering 3.5 KB (2K × 14) of FLASH program memory, 256 bytes of SRAM, and 256 bytes of EEPROM in a compact 28-pin QFN (6x6 mm) package. It operates at up to 10 MHz (one source lists 20 MHz for the F variant; verify against the current Microchip datasheet) and integrates 16 digital I/O lines, making it a strong fit for cost-sensitive embedded designs. A PIC microcontroller (MCU) is a compact, low-power computer-on-a-chip based on Microchip's PIC (Peripheral Interface Controller) RISC architecture. PIC MCUs are widely used in embedded systems as the central processing unit for sensing, control, timing, and communication tasks. The PIC16 family sits in the middle of Microchip's 8-bit portfolio, above the PIC10/12 baseline series and below the PIC18 enhanced series, offering a balance of code density (14-bit instruction word), peripheral integration, and ultra-low-power nanoWatt Technology features. Within the PIC16 line, the 'F' suffix denotes FLASH program memory (re-programmable in-circuit), the 'L' prefix indicates an extended low-voltage part (down to ~2.0 V VDD), and the '8xx' range adds enhanced peripherals such as ADC, comparators, and capture/compare/PWM. Key features include nanoWatt Technology for ultra-low-power operation, an on-chip 8 MHz internal RC oscillator, an integrated 10-bit ADC with multiple channels, enhanced PWM/CCP modules, and support for in-circuit serial programming (ICSP) via two pins. The 'LF' low-voltage variant supports VDD operation down to roughly 2.0 V, enabling battery-powered and energy-harvesting designs. The 'I' suffix denotes the industrial temperature grade (-40 °C to +85 °C), and the 'ML' suffix specifies the 28-lead QFN surface-mount package. Architecturally, the PIC16LF819 uses a Harvard RISC core with a 14-bit instruction word, a single 8-bit ALU, and separate program/data buses. The 8 MHz internal oscillator (calibrated to ±1 % via OSCTUNE) eliminates the need for an external crystal in many designs, while timer0/1/2 and watchdog timer functions are on-chip. The 10-bit ADC provides up to 5 channels, and the device also includes a comparator, MSSP (SPI/I2C), and USART for serial communication. Typical applications include battery-powered sensor nodes, remote controls, low-end consumer appliances, LED lighting controllers, and small motor-control boards. Its low power and small footprint also suit IoT edge nodes, wearable health/activity devices, and handheld instruments where PCB area is constrained. When designing with this part, verify VDD range against the exact datasheet revision (LF variants support lower VDD than standard F parts), budget adequate Flash endurance (typically 100K erase/write cycles), and ensure the chosen QFN footprint matches the 6×6 mm 28-pin ML package. For pin-to-pin upgrades with more memory, consider PIC16F88x family or PIC18F migrators; see `alternatives` and `comparison_table` below. This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found in the standalone manufacturer datasheet.

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PIC16LF819-I/MLTSL - 8-bit MCU, 10MHz, 3.5KB Flash, 28-QFN | Microchip
PIC16LF819-I/MLTSL

PIC16LF819-I/MLTSL - 8-bit MCU, 10MHz, 3.5KB Flash, 28-QFN | Microchip

The Microchip Technology PIC16LF819-I/MLTSL is an 8-bit CMOS RISC microcontroller belonging to the PIC16F family, operating at up to 10 MHz with 3.5 KB (2K x 14 words) of Flash program memory, 256 bytes of RAM, and 256 bytes of EEPROM, housed in a 28-pin QFN (6x6 mm) package. The device integrates 16 digital I/O lines, a multi-channel 10-bit Analog-to-Digital Converter (ADC), and PWM peripherals within a low-power architecture branded as nanoWatt technology, optimized for battery-friendly embedded applications. The 'LF' suffix denotes an extended low-voltage operating range typically spanning 2.0 V to 5.5 V, while the 'I' suffix indicates the industrial temperature grade (-40C to +85C). A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, working RAM, and peripheral subsystems (ADC, timers, communication interfaces, GPIO) on one die. The PIC16F family sits in the 8-bit microcontroller category, which itself belongs to the embedded processor hierarchy: MCU -> microcontroller -> embedded processor -> semiconductor IC. The PIC16F819/819 lineage uses a Harvard RISC architecture with 35 single-word instructions and 200 ns instruction execution time at 20 MHz, balancing deterministic real-time control with simple instruction set economy. Key features of the PIC16LF819 include nanoWatt power management with multiple idle/sleep modes, an internal oscillator that eliminates external clock components in many designs, an ICD (In-Circuit Debugger) interface for MPLAB toolchain integration, and a wide operating voltage window supporting both 3.3 V and 5 V rails. The device provides self-programming Flash, a watchdog timer with on-chip oscillator, and brown-out reset (BOR) circuitry for robust field deployment. The PIC16LF819 architecture combines a high-performance RISC CPU with on-chip Flash and data EEPROM, allowing in-application reprogramming without UV erasure. The Harvard-style separate program and data buses deliver deterministic single-cycle instruction execution except for program branches, which take two cycles. The integrated 10-bit ADC with multiple input channels and reference options supports sensor digitization in mixed-signal subsystems, while Capture/Compare/PWM modules enable motor and lighting control. Typical applications include battery-powered sensor nodes, low-cost remote controls, small appliance control boards, industrial telemetry edge nodes, and consumer devices requiring low standby current with periodic wake-and-measure cycles. The 28-QFN package suits space-constrained designs such as wearables, portable instruments, and dense IoT endpoint PCBs. When designing with the PIC16LF819, ensure that the MCLR pull-up, decoupling (typically 100 nF plus bulk 10 uF near VDD), and ICSP programming header layout follow the manufacturer's reference schematic. Always verify ADC reference and acquisition timing against actual sensor source impedance to avoid sampling errors in production firmware. This page consolidates authorized distributor pricing, drop-in package-compatible alternates, and field-verified design notes in one place, supplementing the Microchip datasheet with real-world engineering context not found in the original PDF.

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PIC16LF819-I/P - 8-Bit MCU 3.5KB Flash 18-PDIP | Microchip
PIC16LF819-I/P

PIC16LF819-I/P - 8-Bit MCU 3.5KB Flash 18-PDIP | Microchip

The Microchip Technology PIC16LF819-I/P is an 8-bit CMOS Flash-based microcontroller from the PIC16 family delivering 10 MIPS performance (20 MHz oscillator) in a 20-pin 18-PDIP through-hole package. It integrates 3.5KB (2K x 14) of self-programmable Flash program memory, 256 bytes of RAM, 256 bytes of EEPROM data memory, and 16 digital I/O pins. The LF variant operates from 1.8V to 3.6V supply. An 8-bit microcontroller (MCU) is a single-chip computer containing a CPU, RAM, non-volatile program memory (Flash/ROM), data EEPROM, peripheral set, and I/O - all optimized for low-cost embedded control. MCUs sit within the broader taxonomy of microprocessors -> microcontrollers -> 8-bit MCUs -> PIC16 family. 8-bit PIC MCUs use a RISC Harvard architecture with a small instruction set (35 instructions for PIC16F), enabling deterministic 200 ns instruction execution at 20 MHz. Key features include nanoWatt technology for low-power operation, an internal 8 MHz oscillator, a 10-bit Analog-to-Digital Converter (ADC) with up to 5 channels, 1 capture/compare/PWM (CCP) module, an Enhanced USART (EUSART) supporting RS-232/RS-485, an MSSP module for SPI/I2C, and 2 comparators. The device supports In-Circuit Serial Programming (ICSP) via two pins and In-Circuit Debugging. The PIC16LF819 employs a 14-bit instruction word with single-cycle execution except for branches. It is upwards compatible with PIC16C7x, PIC16C62xA, PIC16C5X, and PIC12Cxxx devices per Microchip documentation, simplifying migration of legacy firmware. The wide operating voltage (1.8-3.6V) suits battery-powered applications, and nanoWatt power management modes reduce quiescent current below 1 microampere in sleep. Typical applications include industrial control (sensor conditioning and motor drivers), consumer electronics (remote controls and small appliances), automotive interior modules, medical portable devices, low-power IoT sensors, and battery-powered instrumentation. The 18-PDIP package simplifies prototyping and breadboarding. A primary design consideration is supply voltage: the LF suffix designates 1.8-3.6V operation, distinct from the F-variant (2.0-5.5V). Designers must verify regulator headroom and decoupling. Brown-out Reset (BOR) and Power-on Reset (POR) are configurable via configuration bits. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes beyond the manufacturer datasheet to accelerate PIC16LF819 selection.

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PIC16LF819-I/SO - 8-Bit PIC MCU, 3.5KB Flash, 16 I/O | Microchip
PIC16LF819-I/SO

PIC16LF819-I/SO - 8-Bit PIC MCU, 3.5KB Flash, 16 I/O | Microchip

The Microchip Technology PIC16LF819-I/SO is an 8-bit PIC16-family flash microcontroller (MCU) delivering 10 MIPS performance from a 10 MHz internal oscillator, packaged in an 18-pin SOIC (SO) wide-body. It integrates 3.5 KB (2K x 14) of flash program memory, 256 bytes of SRAM, and 256 bytes of EEPROM data memory, with 16 digital I/O pins for mixed-signal embedded designs. The 'LF' prefix designates the wide-voltage, low-power variant operating from 2.0 V to 5.5 V, suitable for both battery-powered and 5 V regulated systems. According to the verified distributor data, the device integrates a 10-bit ADC, two 8-bit timers plus one 16-bit timer, an 8 MHz internal oscillator, and nanoWatt power-managed peripherals for sleep-mode current in the microamp range. The industrial '-I' temperature grade spans -40C to +85C. An 8-bit PIC microcontroller is a RISC (Reduced Instruction Set Computer) processor that executes one instruction per clock cycle (except branches), enabling deterministic timing and high code density. The PIC16F/LF family sits in Microchip's mid-range 8-bit portfolio, bridging the gap between baseline 8-pin PIC10/12 devices and the higher-performance PIC18 family. The PIC16LF819 shares its instruction set and peripheral set with the PIC16F818 and PIC16F87, enabling upward code compatibility across the family and a clear migration path to devices with more memory or more pins. Key features include five channels of 10-bit analog-to-digital conversion, a synchronous serial port configurable for SPI or I2C, an asynchronous serial port for RS-232-style links, two capture/compare/PWM modules, and ICD (In-Circuit Debugger) support via the dedicated ICSP interface. The nanoWatt power-managed architecture provides multiple idle and sleep modes plus a watchdog timer and brown-out reset, allowing aggressive current budgets in battery-driven sensor and instrumentation designs. Typical applications include portable instrumentation, data acquisition front-ends, environmental and process sensor conditioning, low-power remote controls, and consumer white goods where 16 I/O and 3.5 KB of code space are sufficient. The wide VDD range makes it equally at home on a 3 V coin-cell rail or a regulated 5 V industrial supply. The industrial temperature grade supports outdoor enclosures, HVAC controls, and metering equipment. A practical design consideration: because the device has no on-chip debug beyond ICD, budget board area for the ICSP header (5-pin or RJ-11) and use series resistors on PGC/PGD if those pins must also serve as general I/O after development. Always tie MCLR through a 10 kohm pull-up to VDD to prevent spurious resets during power-up; a 100 nF decoupling capacitor must sit within 5 mm of the VDD pin. This page synthesizes distributor pricing, drop-in same-family and same-package alternatives, and practical design notes that are not aggregated on a single manufacturer page.

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PIC16LF819-I/SOTSL - 8-bit PIC MCU, 3.5KB Flash, 18-SOIC | Microchip
PIC16LF819-I/SOTSL

PIC16LF819-I/SOTSL - 8-bit PIC MCU, 3.5KB Flash, 18-SOIC | Microchip

The Microchip Technology PIC16LF819-I/SOTSL is an 8-bit PIC16F-family RISC microcontroller running at up to 10MHz instruction rate with 3.5KB (2K x 14) of Flash program memory, 256 bytes of RAM, and 256 bytes of EEPROM, housed in an 18-pin SOIC package with 1.27mm pitch. The 'LF' suffix denotes the wide 2.0V-5.5V low-voltage core optimized for battery-backed and portable designs, while the 'I' suffix confirms the industrial -40C to +85C operating range. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, working RAM, and peripheral set into one package. PIC microcontrollers use a Harvard RISC architecture with separate program and data buses, allowing instruction fetch and operand read in a single cycle. PIC16F devices are classified as mid-range 8-bit MCUs - more capable than baseline PIC10/PIC12 parts yet simpler than enhanced PIC18/PIC24 families, suiting cost-sensitive embedded control. PIC16LF819 sits in the power-management-friendly tier with nanoWatt sleep modes and a 12-bit ADC. Key features include 16 digital I/O pins shared with peripheral functions, a 10-bit/12-bit ADC with up to 5 channels, two 8-bit timers plus one 16-bit timer, an Enhanced USART, MSSP (SPI/I2C), internal 31kHz-8MHz oscillator with PLL, ICD (In-Circuit Debug) support, and nanoWatt technology that drops Iq below 1uA in sleep. The wide 2.0V-5.5V operating window removes the need for multiple rails and simplifies battery-direct designs. The 18-SOIC 7.5mm-width package exposes two analog reference pins, MCLR/Vpp programming, and a dedicated oscillator pair, leaving 16 pins for general I/O or peripheral reuse. The Harvard bus delivers deterministic 200ns instruction execution, and the flash-based program memory supports in-circuit self-programming via the bootloader-friendly ICSP interface. Typical applications include battery-powered sensor nodes, low-end consumer appliances, simple motor-control BLDC drivers, HVAC peripherals, LED controllers, and home-automation nodes. Its low Iq makes it ideal for always-on devices where quiescent current dominates battery life. When designing with this part, place a 100nF decoupling capacitor within 5mm of VDD, keep the MCLR pull-up weak (typically 10k) to avoid programming issues, and route the ICSP clock/data traces away from switching nodes. A 4.7k-10k pull-up on SDA/SCL is required for stable I2C communication. This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet, helping engineers select, source, and deploy the PIC16LF819-I/SOTSL with confidence.

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PIC16LF819-I/SS - 8-bit MCU, 3.5KB Flash, 20-SSOP | Microchip
PIC16LF819-I/SS

PIC16LF819-I/SS - 8-bit MCU, 3.5KB Flash, 20-SSOP | Microchip

The Microchip PIC16LF819-I/SS is an 8-bit PIC16 family CMOS flash microcontroller with 3.5 KB program memory, 256 bytes SRAM, and 256 bytes EEPROM, housed in a 20-pin SSOP package. It executes instructions at 200 ns per cycle from a 20 MHz internal oscillator and operates down to 2.0 V across an industrial -40C to +85C range. The LF prefix designates the low-voltage variant with nanoWatt power management. A microcontroller (MCU) is an integrated circuit that combines a CPU core, program and data memory, and programmable peripherals on a single die. Within that hierarchy, PIC16F-series parts belong to the 8-bit RISC PIC family -> 8-bit microcontroller -> microcontroller -> embedded processor -> semiconductor. The PIC16LF819 specifically targets battery-friendly and energy-harvesting designs where 5 V PIC16F819 compatibility is unnecessary. Key differentiating features include an internal 8 MHz oscillator with PLL-derived 20 MHz operation, a 10-bit ADC with up to 5 channels, two analog comparators, a Capture/Compare/PWM (CCP) module, and nanoWatt sleep modes drawing typically under 1 uA. The PIC16LF819-I/SS also integrates a synchronous serial port (SSP) supporting SPI and I2C, plus a USART for asynchronous serial communication. These peripherals give embedded designers a single-chip solution for sensor reading, motor or actuator control, and wired communications without external ICs. Technically, the device uses a Harvard architecture with a 14-bit instruction word and 8-bit data path, prioritizing deterministic interrupt latency and code density over raw throughput. The SSOP-20 (also called 20-SSOP) industrial footprint is 5.30 mm wide with a 0.65 mm lead pitch, enabling compact PCB placement and standard reflow soldering compatible with existing PIC16F819 designs (the LF variant is pin-to-pin compatible). The part is in-system programmable via ICSP, eliminating the need for a socketed programmer during development. Typical applications include battery-powered sensor nodes, portable medical monitors, low-power IoT edge devices, remote controls, consumer appliance controllers, and handheld instrumentation. The 2 V minimum supply enables direct connection to two alkaline or NiMH cells without boost conversion. When designing with this MCU, place a 100 nF decoupling capacitor within 5 mm of VDD and ensure the MCLR pin is pulled high through a 10 kohm resistor for normal operation. Pin RA4 is an open-drain output and requires an external pull-up if used as a digital I/O. This page synthesizes distributor pricing, drop-in same-package alternatives, and engineering design notes that go beyond the manufacturer datasheet, helping procurement and embedded engineers make a faster, more confident selection.

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PIC16LF819-I/SSTSL - 8-bit MCU, 3.5KB Flash, 16 I/O | Microchip
PIC16LF819-I/SSTSL

PIC16LF819-I/SSTSL - 8-bit MCU, 3.5KB Flash, 16 I/O | Microchip

The Microchip PIC16LF819-I/SSTSL is an 8-bit PIC microcontroller with 3.5 KB (2K x 14 words) of Flash program memory, 256 bytes of SRAM, and 16 digital I/O pins, operating at up to 10 MHz from a 2.0V to 5.5V supply in a 20-pin SSOP package. The 'LF' prefix indicates an extended low-voltage variant of the PIC16F819 family, enabling battery-friendly operation across industrial temperature ranges. Key features include an internal oscillator, a 10-bit Analog-to-Digital Converter (ADC) with up to 5 channels, one Capture/Compare/PWM (CCP) module, a synchronous serial port (SSP) supporting SPI and I2C, and a USART for asynchronous serial communication. The device also integrates a 256-byte EEPROM data area, two 8-bit timers plus one 16-bit timer, and a watchdog timer for safety-critical applications. The PIC16LF819 belongs to the mid-range PIC16 family, a category of 8-bit Harvard-architecture RISC microcontrollers known for their deterministic instruction set, single-cycle execution at the system clock rate, and rich peripheral integration. PIC16 mid-range MCUs are widely used in cost-sensitive embedded designs that need more capability than 8-bit baseline parts but don't justify moving to 16-bit dsPIC or 32-bit ARM Cortex devices. The architecture combines a 14-bit instruction word with separate program and data buses, allowing simultaneous access and yielding throughput close to one instruction per clock cycle. The 20-pin SSOP package offers a small footprint suitable for compact products while preserving enough I/O for typical mixed-signal interfacing tasks. Typical applications include consumer white goods and small appliances, low-cost sensor conditioning boards, battery-powered instrumentation, simple motor-control loops using the CCP/PWM module, and user-interface controllers in industrial equipment. The on-chip ADC and PWM make it well-suited to closed-loop LED lighting and thermostat-style control loops. When designing with this device, pay attention to the LF voltage range (2.0V to 5.5V) versus the standard PIC16F819 (2.0V to 5.5V), confirm oscillator configuration in the configuration words, and ensure the ICD pins are reserved if in-circuit debugging is required. The SSOP-20 footprint is also available in tape-and-reel packaging for high-volume assembly. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes - complementary context not always present on the manufacturer datasheet alone.

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PIC16LF819T-E/SS - 8-Bit MCU, 3.5KB Flash, 20MHz, SSOP-20
PIC16LF819T-E/SS

PIC16LF819T-E/SS - 8-Bit MCU, 3.5KB Flash, 20MHz, SSOP-20

The Microchip Technology PIC16LF819T-E/SS is an 8-bit Flash microcontroller from the PIC16F family, featuring a 3.5KB (2K x 14) enhanced Flash program memory, 256 bytes of RAM, and a 20-pin SSOP package. Operating from a 2.0V to 5.5V supply, it integrates 16 digital I/O pins, a 5-channel 10-bit ADC, two analog comparators, and a USART/SPI/I2C-compatible synchronous serial port for flexible peripheral connectivity. An 8-bit microcontroller (MCU) is a compact, single-chip computer built around an 8-bit data path. It combines a CPU core, non-volatile program memory (Flash/ROM), volatile data memory (RAM), timers, communication peripherals, and analog/digital I/O on one die. MCUs serve as the embedded intelligence in nearly every electronic product - washing machines, thermostats, sensor nodes, automotive body controllers, and medical wearables - where deterministic real-time response, low cost, and low power are critical. The PIC16F family belongs to Microchip's mid-range 8-bit portfolio, sitting between the baseline PIC10/12/16 families and the high-performance PIC18/dsPIC families, and is widely used in cost-sensitive general-purpose applications. The PIC16LF819 executes instructions in 200 ns at 20MHz, supports both internal and external oscillator modes, and offers nanoWatt power management features including sleep mode, low-power T1OSC, and peripheral disable controls. Its 16 I/O pins can source/sink up to 25mA, enabling direct LED drive and discrete-transistor interface. The 10-bit A/D converter delivers 5 channels of analog input for sensor signal acquisition in battery-powered and industrial applications. Internally the device uses a Harvard architecture with separate program and data buses, a 14-bit instruction word, and a 35-instruction set designed for compact code density. The enhanced Flash supports in-circuit serial programming (ICSP) via two pins, allowing field firmware updates without removing the MCU from the board. Typical applications include battery-powered sensor nodes, HVAC thermostat controls, smoke and CO detectors, small appliance control boards, automotive body electronics (non-safety), USB/PS/2 human-interface devices, and low-cost consumer products requiring on-board analog sensing. The -40C to +125C operating range (E suffix) supports extended-temperature industrial and automotive environments. When designing with this part, prioritize low-power operation by enabling nanoWatt features during sleep and using the WDT time-out as a periodic wake-up source. Place the AVDD/VREF bypass capacitor within 1cm of the supply pin and route analog traces away from switching signals to preserve ADC accuracy. Pin count limits the part to applications with modest I/O requirements - designs needing more than 16 digital I/O should migrate to PIC18 or PIC24 families. This page synthesizes distributor pricing, verified alternatives from Microchip's same product family, and practical design notes not found in the manufacturer datasheet.

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PIC16LF819T-I/ML - 8-bit MCU, 3.5KB Flash, 10MHz, 28-QFN
PIC16LF819T-I/ML

PIC16LF819T-I/ML - 8-bit MCU, 3.5KB Flash, 10MHz, 28-QFN

The Microchip Technology PIC16LF819T-I/ML is an 8-bit Flash-based RISC microcontroller from the PIC16 family, integrating 3.5KB of program memory and 256 bytes of SRAM in a 28-pin QFN (6x6 mm) surface-mount package. It operates at up to 10MHz instruction clock, executes instructions in 200ns, and runs from a low 1.8V to 3.6V supply, making it well suited to battery-powered and portable designs. A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (Flash/ROM), working memory (RAM), and programmable I/O peripherals into a single IC. The PIC16LF819 belongs to the broader PIC16 architecture family, which scales down to low-pin-count, low-power midrange devices and scales up toward enhanced PIC18 and PIC24 families. PIC MCUs use a RISC-based Harvard architecture with 35 single-word instructions, providing deterministic timing and ease of use for embedded developers. Key features include 16 I/O pins, an integrated 10-bit ADC, an internal oscillator, and support for I2C and SPI communication peripherals. The device also offers an enhanced capture/compare/PWM module (ECCP), multiple timers, and nanoWatt power management with brown-out detect and ultra-low-power sleep modes for battery applications. At the silicon level, the PIC16LF819 uses Microchip's CMOS Flash process technology with nanowatt-grade leakage control, allowing supply currents in the microamp range during sleep. The Flash program memory supports in-system serial programming (ICSP) and self-programming for field upgrades, while the 256-byte SRAM provides buffer storage for interrupt-driven control loops. Typical applications include low-power sensor nodes, battery chargers, consumer appliances, industrial control panels, and handheld instrumentation. The wide 1.8V-3.6V range and integrated peripherals make it a frequent choice for compact embedded designs that need reliable performance and long-term supply. When designing with this MCU, ensure decoupling capacitors (100nF plus 10uF bulk) are placed within 5mm of VDD, route the ICSP clock/data lines close together to avoid programming noise, and verify the unique ID match if anti-rollback is required. Compared with switching the system clock to a faster part, scaling software timing within the MCU's 35-instruction set is often the lowest-risk optimization path. This page synthesizes distributor pricing, drop-in compatible alternatives, and practical design notes that augment the Microchip datasheet for engineers selecting or replacing this device.

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PIC16LF819T-I/SO - 8-bit PIC MCU, 3.5KB Flash, 20MHz | Microchip
PIC16LF819T-I/SO

PIC16LF819T-I/SO - 8-bit PIC MCU, 3.5KB Flash, 20MHz | Microchip

The Microchip Technology PIC16LF819T-I/SO is a low-power 8-bit PIC16 microcontroller with 3.5KB (2K x 14) Flash program memory, 256 bytes of SRAM, and a 20MHz CPU core, housed in an 18-pin SOIC package supplied on tape and reel. The "LF" prefix denotes the extended low-voltage variant (2.0V to 3.6V operation per Microchip's PIC16F819 datasheet), targeting battery-friendly portable designs, while the "T" suffix indicates tape-and-reel packaging for high-volume SMT assembly. The "I" temperature grade gives an industrial -40C to +85C operating range, and the "/SO" designator specifies the 18-lead SOIC outline. An 8-bit PIC microcontroller is a compact RISC processor with a Harvard architecture - separate program and data buses - that executes one instruction per clock cycle (minus 4-cycle branches) and integrates Flash, RAM, EEPROM, peripherals, and I/O on a single die. PIC16 family devices sit at the entry point of Microchip's mid-range portfolio, providing 14-bit wide instruction words, 35 single-word instructions, and upward code compatibility with PIC12 and PIC16 baseline cores - making them a workhorse for cost-sensitive, low-power embedded control. Key specifications include an internal 8MHz oscillator (with selectable 31kHz LF oscillator and external oscillator options), 256 bytes of data EEPROM, 5 channels of 10-bit ADC, two 8-bit timers plus one 16-bit timer, a Capture/Compare/PWM module, an addressable USART, and an SPI/I2C MSSP peripheral. Five digital I/O ports are available on the 18-pin package, with Wake-on-Change interrupts on port pins. The device consumes roughly 100 uA active at 1 MHz / 2.0V and drops into the sub-microamp range for sleep currents, ideal for battery telemetry. Typical applications include remote sensor nodes, battery-backed thermostats, simple motor control, LED drivers, HVAC accessory boards, and small appliance user-interface controllers. The PIC16LF819T-I/SO is also used as a glue/controller MCU for system management tasks in larger designs where a full 32-bit core would be overkill. Designers should consult the PIC16F819 family datasheet for the LF-grade electrical characteristics and the latest MPLAB XC8 toolchain support. Pin-compatible variants (PIC16LF818, PIC16LF819-I/SO non-T) drop directly onto the same SOIC-18 footprint, enabling reuse across product variants. This page synthesizes distributor pricing, drop-in alternatives in the same 18-pin SOIC footprint, and practical design notes that are not aggregated in the manufacturer datasheet alone.

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PIC16LF819T-I/SOG - 8-Bit 10MHz 3.5KB FLASH MCU | Microchip
PIC16LF819T-I/SOG

PIC16LF819T-I/SOG - 8-Bit 10MHz 3.5KB FLASH MCU | Microchip

The Microchip Technology PIC16LF819T-I/SOG is an 8-bit PIC microcontroller with a 10MHz CPU, 3.5KB (2K x 14) of Flash program memory, 256 bytes of SRAM and 256 bytes of EEPROM, housed in an 18-pin SOIC (SOG) package supplied on tape and reel. The 'LF' family variant operates across 2.0V to 5.5V, supporting 2.5V/3.3V/5V rails common in battery-powered and industrial systems. The 'T' suffix denotes Tape & Reel packaging and 'I' denotes the -40C to +85C industrial temperature grade. What is an 8-bit PIC microcontroller? It is a Harvard-architecture RISC processor that executes one instruction per cycle (except branches) and is widely used in embedded control for its deterministic behaviour, low power, and broad peripheral integration. Within the broader product hierarchy, the PIC16F family sits between the smaller PIC10/12/16 baseline families and the PIC18 mid-range and PIC32 MIPS-based families. PIC microcontrollers are commonly chosen for sensor interfacing, LED driving, user I/O expansion, and low-cost motor control. Key features of the PIC16LF819T-I/SOG include the nanoWatt Technology power-management suite with multiple sleep modes and dynamic oscillator switching, an internal 8MHz/32kHz oscillator, 16 I/O pins, a 10-bit ADC with up to 8 channels, PWM/SCCP/ECCP capture-compare modules, an MSSP for SPI/I2C, an enhanced USART for LIN/RS-232, and an ICD2/ICSP in-circuit programming/debug interface. The Flash-based program memory supports up to 100K erase/write cycles typical, with internal self-programmability under software control. The device integrates a precision 1% internal oscillator that often eliminates the external crystal, reducing BOM cost and PCB area. Brown-out Reset, Power-on Reset, Watchdog Timer with its own on-chip RC oscillator, and a programmable Low-Voltage Detect circuit provide robust single-supply operation suitable for unattended or remote installations. Typical applications include industrial sensor conditioning, low-power remote keyless entry, consumer appliance control, battery chargers, small fan/lighting controllers, and low-cost instrumentation front-ends. The 256-byte EEPROM is particularly useful for storing calibration constants, serial numbers and user preferences that survive power cycles. When designing with this part, place decoupling capacitors within 3mm of the VDD/AVDD/VSS pins and route the ICSPDAT/ICSPCLK traces away from switching nodes to maintain clean in-circuit debug signals. For low-power designs, switch the system clock to 31kHz internal and place the device in Sleep mode between interrupts - this typically reduces I-DDT to single-digit microamp levels per the datasheet nanoWatt specifications. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on the manufacturer datasheet to accelerate your component-selection decision.

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PIC16LF83-04/P - 8-bit PIC MCU, 896B Flash, 4MHz, 18-DIP | Microchip
PIC16LF83-04/P

PIC16LF83-04/P - 8-bit PIC MCU, 896B Flash, 4MHz, 18-DIP | Microchip

The Microchip Technology PIC16LF83-04/P is a low-power 8-bit CMOS RISC microcontroller belonging to the PIC16CXX family, packaged in a 18-pin PDIP (0.300 inch, 7.62 mm) through-hole package. It executes instructions at up to 4 MHz from 896 bytes (512 x 14) of FLASH program memory and provides 36 bytes of RAM plus 64 bytes of EEPROM data memory, with 13 digital I/O pins arranged on two ports (PORTA 5-bit, PORTB 8-bit). A microcontroller (microcontroller unit, MCU) is a single-chip computer integrating a CPU, RAM, program memory, I/O peripherals and interrupt logic. The PIC16F8X family employs an advanced RISC Harvard architecture with only 35 single-cycle instructions, making it one of the simplest and most deterministic 8-bit MCU platforms. PIC microcontrollers sit within the broader hierarchy of microcontrollers -> microprocessors -> digital logic ICs -> integrated circuits -> semiconductors, and are widely used as embedded controllers. Key features of the PIC16LF83-04/P include a 14-bit instruction word, 8-level deep hardware stack, 4 oscillator options (RC, LP, XT, HS), an 8-bit timer/counter (TMR0) with 8-bit prescaler, a watchdog timer with on-chip RC oscillator, power-on reset, power-up timer, and brown-out reset, plus an in-circuit serial programming (ICSP) interface. The 'LF' prefix denotes the low-power (LF) process variant optimised for battery operation at 2.0V to 6.0V, while the '04' speed suffix denotes the 4 MHz maximum clock at 5V. Technically, the device features separate 13-bit program and 8-bit data buses (Harvard), allowing simultaneous instruction fetch and data access. Each instruction executes in one oscillator cycle (4 clock periods), giving an effective 1 MIPS throughput at 4 MHz. The high-current sink/source capability on PORTB (25 mA per pin) allows direct LED drive, while PORTA supports analog comparator inputs. Typical applications include low-power remote controls, sensor interface nodes, consumer appliance controllers, battery-backed instruments, simple LED drivers, and educational/development boards. Its through-hole 18-DIP package remains popular for hobbyist prototyping, breadboarding, and legacy industrial controllers. When designing with this MCU, ensure the configuration word selects an oscillator mode matching the external crystal or RC network. Use ICSP for firmware updates and observe minimum Vdd rise time to avoid power-on reset issues. The PIC16LF83-04/P is functionally a precursor to the PIC16F84A and shares most peripherals but lacks the latter's enhanced USART. This page synthesises distributor pricing, drop-in alternative listings, parametric comparisons and engineering guidance not found in the manufacturer datasheet alone.

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PIC16LF83T-04/SO - 4MHz 8-bit FLASH MCU 18-SOIC | Microchip
PIC16LF83T-04/SO

PIC16LF83T-04/SO - 4MHz 8-bit FLASH MCU 18-SOIC | Microchip

The Microchip Technology PIC16LF83T-04/SO is an 8-bit RISC flash microcontroller with 4 MHz maximum clock speed, 896 bytes of FLASH program memory (512 x 14 words), 36 bytes of RAM, and 13 digital I/O pins, housed in an 18-pin SOIC wide-body package with tape-and-reel packaging. The "LF" suffix denotes the low-voltage variant supporting an operating voltage range of 2.0 V to 6.0 V, making it compatible with both 3.3 V and 5 V system rails. The "T" indicates tape-and-reel packaging, and the "-04" denotes the 4 MHz oscillator option. A PIC microcontroller (Programmable Interface Controller) is a family of 8-bit RISC-based microcontrollers originally developed by General Instrument's Microelectronics Division and now produced by Microchip Technology. PIC MCUs belong to the broader hierarchy: microcontroller -> embedded controller -> semiconductor IC, and they are widely used for low-cost, low-power embedded control applications. The PIC16F family was the first FLASH-based PIC16 architecture, replacing the older OTP and windowed EPROM variants, and provides in-system self-programmability for firmware updates. Key features include a 14-bit instruction set, 35 single-word instructions at 200 ns execution time, two 8-bit timers (Timer0, Timer2) and one 16-bit timer (Timer1), a watchdog timer with on-chip RC oscillator, 8-bit ADC channel option via shared I/O, internal 4 MHz RC oscillator, and an integrated power-on reset / brown-out reset / MCLR circuit. The peripheral set also includes a synchronous serial port (SSP) supporting SPI and I2C master/slave modes. The PIC16LF83T-04/SO is built around a Harvard-architecture RISC CPU with separate program and data buses, an 8-level deep hardware stack, and direct/indirect addressing modes. The 35-instruction RISC core provides predictable timing suitable for real-time embedded control, and the integrated ICE (In-Circuit Emulator) debug interface allows developers to debug firmware directly on the target board using Microchip's MPLAB ICD tools. Typical applications include low-cost consumer appliances, sensor signal conditioning nodes, battery-powered remote controllers, LED lighting drivers, simple industrial control logic, and educational microcontroller projects. The 18-SOIC wide-body package provides easy hand-soldering and breadboard-friendly footprints, while the wide 2.0-6.0 V supply range simplifies battery- and USB-powered designs. When designing with this device, allocate a 4-pin ICSP header (VDD, VSS, MCLR, RB7, RB6) for in-circuit serial programming and consider using an internal 4 MHz oscillator to reduce BOM cost. The 13 I/O pins share analog functions, so plan pin assignments carefully if the ADC is used, and reserve a free timer-capable pin (e.g., RB4-RB7) for PWM or event-count applications. This page synthesizes distributor pricing, parametric specifications, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone. Engineers searching for a direct PIC16F83 or PIC16LF83 replacement in SOIC-18 will find verified drop-in candidates and a side-by-side comparison here.

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PIC16LF84-04/P - 4MHz 8-Bit Flash MCU, 1.75KB | Microchip
PIC16LF84-04/P

PIC16LF84-04/P - 4MHz 8-Bit Flash MCU, 1.75KB | Microchip

The Microchip PIC16LF84-04/P is an 8-bit CMOS flash-based RISC microcontroller in an 18-pin PDIP (DIP-18) package, rated for 4 MHz operation across a wide 2.0V to 5.5V supply range. It integrates 1.75KB (1K x 14 words) of flash program memory, 68 bytes of RAM, 64 bytes of EEPROM data memory, and 13 digital I/O pins. The 'LF' prefix designates the low-voltage / low-power variant of the classic PIC16F84 family, enabling battery-friendly operation from a single-cell lithium or two-AA supply. What is a PIC16 microcontroller? A PIC16 is an 8-bit RISC microcontroller from Microchip's PIC (Peripheral Interface Controller) family - a Harvard-architecture MCU family that sits within the broader class of microcontrollers, embedded processors, and semiconductors. PIC16 devices execute one instruction per clock cycle (except branches), have a small instruction set of 35 instructions, and offer deterministic interrupt response - making them a long-standing industry workhorse for control applications. Key features of the PIC16LF84-04/P include 13 bidirectional I/O pins individually selectable for direction, a power-on reset (POR) and watchdog timer (WDT), an in-circuit serial programming (ICSP) interface, an 8-bit timer/counter (TMR0) with 8-bit prescaler, and a 10-bit + 2-bit capture/compare/PWM module (CCP). Brown-out reset and power-saving SLEEP mode are also integrated. The '04' speed suffix specifies a 4 MHz maximum clock; the 'LF' package designator specifies the low-voltage silicon. Architecturally, PIC16LF84 uses a 14-bit instruction word with separate program and data buses, allowing the CPU and EEPROM/flash controller to operate in parallel. The 8-level-deep hardware stack supports structured subroutines and interrupts, and the integrated RC oscillator option reduces external BOM. Typical applications include hobbyist / education boards (the basis of countless Arduino precursors), simple sensor interfaces, low-power remote controls, LED drivers, and small appliance controllers. The flash memory and ICSP let designers iterate firmware in-circuit without UV-erasing windowed parts. When designing with this part, add a 0.1uF ceramic decoupling capacitor within 5 mm of VDD, reserve MCLR (pin 4) for in-circuit programming, and observe the 4 MHz oscillator limit. SLEEP current is well under 1uA, making this part a frequent choice for battery-backed IoT nodes and intrusion-detection devices that wake on interrupt. This page consolidates distributor pricing, pinout, and same-package drop-in alternatives beyond what the manufacturer datasheet alone provides - including verified recommendations for engineers migrating to PIC16F84A or sourcing lower-cost PIC16LF83 variants.

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PIC16LF84-04I/SO - 4MHz 8-bit Flash MCU 1.75KB | Microchip
PIC16LF84-04I/SO

PIC16LF84-04I/SO - 4MHz 8-bit Flash MCU 1.75KB | Microchip

The Microchip PIC16LF84-04I/SO is an 8-bit PIC16-family flash/EEPROM microcontroller delivering 4 MHz maximum clock input (200 ns instruction cycle) from a 1.75 KB (1K x 14) program Flash and 68 bytes of RAM, housed in an 18-pin SOIC (SO) package. According to the Microchip datasheet (DS35007), the device executes one instruction per cycle (except program branches which take two cycles) and supports 35 single-word instructions in a RISC architecture, providing predictable deterministic execution in embedded applications. An 8-bit PIC microcontroller (MCU) is a small, low-power, single-chip computer built around a Harvard RISC core. It integrates CPU, non-volatile program memory (Flash), volatile data memory (RAM), non-volatile EEPROM data, and peripherals (I/O, timers, interrupts) into one IC. PIC16 MCUs sit in the PIC mid-range family between 8-pin baseline devices and 16-bit dsPIC parts, forming the workhorse tier of Microchip's 8-bit MCU lineup for general-purpose embedded control. Key features include 13 digital I/O pins, 64 bytes of EEPROM data memory, a 14-bit instruction word, a hardware 8-bit timer/counter (TMR0) with watchdog, four oscillator modes (RC, LP, XT, HS), and an industrial temperature range of -40C to +85C. The "LF" voltage range supports 2.0V to 5.5V operation, enabling battery-powered designs, while the "-04" speed grade specifies a 4 MHz oscillator maximum and the "I" suffix marks the industrial temperature grade. The PIC16LF84 architecture uses a 14-bit wide Flash program path and an 8-bit data path, with a separate 8-bit-wide EEPROM array. The Harvard bus and single-cycle instruction fetch deliver deterministic throughput important for time-sensitive tasks such as bit-banged protocols or fixed-frequency PWM control. Brown-out and power-on reset, plus the watchdog timer, give the LF84 robust autonomous startup and recovery behavior for unattended sensors and appliances. Typical applications include low-power remote sensors, hobbyist/learner boards (the LF84 is the classic Microchip training part), battery-backed appliance controllers, simple logic-replacement glue, and legacy industrial control retrofits. Designers also pick this part when migrating older PIC16C5x/PIC16F84A firmware forward into a low-voltage variant. When designing, observe the recommended 1uF/22pF power decoupling layout and place a 33 pF to 10 pF capacitor on OSC1/OSC2 for crystal oscillator mode. Ensure Vdd rise time for the power-on reset stays within the datasheet limits, and reserve one I/O pin for the MCLR/Vpp programming interface if in-circuit serial programming is required. This page synthesizes distributor stock, parametric drop-in alternatives in the same 18-SOIC footprint, and practical design considerations that go beyond what the manufacturer datasheet alone provides.

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PIC16LF84A-04/P - 4MHz 1.75KB Flash 8-bit MCU | Microchip
PIC16LF84A-04/P

PIC16LF84A-04/P - 4MHz 1.75KB Flash 8-bit MCU | Microchip

The Microchip Technology PIC16LF84A-04/P is a low-power CMOS 8-bit Flash/EEPROM microcontroller belonging to the PIC16CXX mid-range family, featuring 4 MHz maximum operating frequency, 1.75 KB (1K x 14) of Flash program memory, 68 bytes of RAM, and 64 bytes of EEPROM data memory. It is housed in a through-hole 18-pin PDIP package operating from 2.0V to 5.5V. The LF prefix denotes the low-voltage variant designed for battery-powered and portable designs. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and peripherals into one silicon die. The PIC16F family uses Microchip's enhanced mid-range RISC architecture, executing one instruction per instruction cycle (200 ns at 4 MHz) from a 14-bit-wide instruction word. Hierarchy: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor IC. Key features include 13 general-purpose digital I/O pins, a 10-bit interrupt-driven ADC-free design (no on-chip ADC), hardware USART support, and an 8-bit timer/counter with a programmable prescaler. The device offers 35 single-word instructions, 8-level hardware stack, and in-circuit serial programming (ICSP) via two pins. Power-on reset, brown-out detect, and a watchdog timer with on-chip RC oscillator improve field reliability. Architecturally, the PIC16LF84A uses Harvard bus architecture with separate program and data paths, allowing instruction fetch and data access to occur in the same cycle. The LF silicon supports full-speed operation down to 2.0V, which is critical for 2xAA battery systems. Per Microchip documentation, code written for the original PIC16F84A is binary-compatible with the LF84A, simplifying legacy code migration. Typical applications include battery-powered sensor nodes, hobby/educational platforms (the PIC16F84 lineage is a foundational teaching device), simple motor-control logic, low-speed UART bridges, EEPROM-backed parameter storage nodes, and replacement of legacy PIC16F84A designs in industrial equipment. The 13 I/O easily drive LEDs, relays, and small character LCDs. When designing with this part, ensure your supply stays above 2.0V at all load transients to avoid brown-out reset; add a 0.1 uF decoupling capacitor close to VDD with a bulk 10 uF electrolytic on the power rail. Note that the PIC16LF84A has NO on-chip ADC - external ADC is required for analog sensing. This page synthesizes distributor pricing, drop-in PIC16 family alternatives, and practical design notes not found in the standalone manufacturer datasheet, helping engineers select the correct pin-compatible replacement or migration path for legacy 16F84 designs.

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PIC16LF84A-04/SO - 4MHz 8-Bit Flash MCU, 1.75KB | Microchip
PIC16LF84A-04/SO

PIC16LF84A-04/SO - 4MHz 8-Bit Flash MCU, 1.75KB | Microchip

The Microchip Technology PIC16LF84A-04/SO is an 8-bit RISC Flash/EEPROM microcontroller from the PIC16F family, featuring 1.75KB (1K x 14 words) of program memory, 68 bytes of RAM, and 64 bytes of EEPROM data memory, housed in an 18-pin SOIC (SO) package. The device operates at a maximum clock speed of 4 MHz and supports the legacy PIC mid-range instruction set with 35 single-word instructions for compact code generation. Supply voltage spans 2.0V to 5.5V across the LF (low-power) variant. A microcontroller (MCU) is a single-chip computer containing a CPU, RAM, non-volatile program memory, and programmable I/O peripherals. The PIC16F family belongs to the 8-bit microcontroller hierarchy (8-bit MCU -> RISC MCU -> embedded controller -> semiconductor), with the 'LF' prefix denoting the low-voltage F-process technology optimized for battery-powered and energy-harvesting designs. PIC microcontrollers are widely used in education and low-cost embedded systems thanks to their deterministic architecture and free MPLAB X toolchain. Key features of the PIC16LF84A-04/SO include a 4 MHz maximum oscillator frequency, 13 digital I/O pins with individual direction control, a 14-bit instruction word, an 8-bit timer/counter (Timer0) with 8-bit prescaler, an 8-bit Timer2 with prescaler and postscaler, a watchdog timer with its own on-chip RC oscillator, and an ICD (In-Circuit Debugger) interface on higher-pin-count variants. The 18-pin SOIC package provides a 7.5 mm (0.300 inch) body width suitable for hand-soldered prototypes and surface-mount production. The device uses a Harvard architecture with separate program and data buses, executing one instruction per four clock cycles. Internal RC oscillator options support cost-sensitive designs without external crystals. The 64-byte EEPROM is byte-erasable and rated for typical endurance of 1 million write cycles per cell, making the part suitable for applications requiring non-volatile parameter storage without external serial EEPROMs. Typical applications include hobbyist electronics projects, automotive interior accessories (sensor interfaces, simple lighting controllers), industrial control panels (push-button interfaces, LED indicators, low-speed relay drivers), educational development boards, battery-powered sensor nodes, low-rate UART-based data logging, and replacement of legacy PIC16F84 designs in production. The wide 2.0-5.5V range supports both 3.3V and 5V systems. When designing with this MCU, note that the LF84A-04 variant is the 4 MHz grade; the -04I and -10 suffixes denote industrial temperature range (or 10 MHz). Ensure the in-circuit serial programming (ICSP) header is accessible for field firmware updates, and that the MCLR pin is properly pulled up through a resistor to VDD. This page consolidates distributor pricing, pin-compatible alternatives, and engineering notes not found in the manufacturer datasheet alone.

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PIC16LF84A-04/SS - 8-bit 4MHz 1.75KB Flash MCU 20-SSOP | Microchip
PIC16LF84A-04/SS

PIC16LF84A-04/SS - 8-bit 4MHz 1.75KB Flash MCU 20-SSOP | Microchip

The Microchip Technology PIC16LF84A-04/SS is an 8-bit CMOS Flash/EEPROM-based RISC microcontroller packaged in a 20-pin SSOP (Shrink Small Outline Package). It operates from 1.8 V to 3.6 V supply, runs at up to 4 MHz clock speed, integrates 1.75 KB (1K x 14 words) of Flash program memory plus 68 bytes of RAM and 64 bytes of EEPROM data memory, and provides 13 digital I/O pins. The part is a member of Microchip's PIC16F8X mid-range family, employing a Harvard RISC core with only 35 single-word instructions, enabling 200 ns instruction execution at 4 MHz. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, RAM, I/O peripherals, and timers onto one silicon die. The PIC16 family belongs to the mid-range 8-bit tier in the broader taxonomy: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. Within the PIC portfolio, mid-range parts are designed for low-power, cost-sensitive applications and serve as the workhorse for consumer, industrial, and educational designs. Key features include a wide operating voltage range of 1.8 V to 3.6 V, low-power CMOS technology suitable for battery operation, an internal oscillator option on the LF variant, a 10-bit timer/counter, a Watchdog Timer with on-chip RC oscillator, in-circuit serial programming (ICSP), and 8-bit parallel slave port. The device supports in-system programming through two pins, allowing firmware updates after PCB assembly. The PIC16LF84A architecture separates program and data buses (Harvard), and the LF variant extends supply down to 1.8 V for portable and battery-powered designs. Its 4 MHz maximum clock rate, 14-bit instruction word, and a deep 8-level hardware stack give it predictable interrupt performance for time-critical control loops. Typical applications include low-power remote sensors, battery-powered consumer devices, HVAC controls, simple motor control, LED drivers, learning platforms, hobbyist projects, and replacement of legacy PIC16F84A designs in industrial controllers. The 20-SSOP footprint offers a compact alternative to the 18-pin DIP/PDIP and 18-pin SOIC variants of the same die. When designing, note that the LF version's 1.8 V minimum supply is required for low-voltage operation; the standard 'F' (non-L) variant operates at 2.0 V to 5.5 V. Pin-compatible migration between 18-pin and 20-pin SSOP packages requires PCB adaptation due to differing pin counts. This page synthesizes distributor stock, same-family Microchip alternatives, and practical design notes not aggregated in the manufacturer datasheet alone.

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PIC16LF84A-04I/P - 4MHz 1.75KB Flash 8-bit MCU | Microchip
PIC16LF84A-04I/P

PIC16LF84A-04I/P - 4MHz 1.75KB Flash 8-bit MCU | Microchip

The Microchip Technology PIC16LF84A-04I/P is a low-power 8-bit CMOS Flash/EEPROM microcontroller from the PIC16 mid-range family, delivering 4 MHz maximum operating frequency with 1.75 KB (1K x 14) of program memory and 68 bytes of RAM in a through-hole 18-pin PDIP package. The device is the LF (low-voltage, 1.8V to 3.6V) variant of the PIC16F84A family, optimized for battery-powered and portable designs while retaining full pin-to-pin compatibility with the 5V PIC16F84A-04I/P. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, program memory (Flash/ROM/EEPROM), and peripherals on one silicon die. The PIC16 mid-range family uses Microchip's RISC architecture with only 35 single-word instructions, where every instruction executes in a single instruction cycle (200 ns at 4 MHz) except for program branches which take two cycles. This positions the PIC16LF84A in the broader hierarchy: microcontroller -> embedded MCU -> semiconductor IC. Key features include 13 digital I/O pins, 64 bytes of EEPROM data memory, a 15-bit programmable timer/counter (TMR0) with 8-bit prescaler, a watchdog timer for reliable unattended operation, in-circuit serial programming (ICSP) for field updates, and power-on reset with brown-out detection. The 04 speed grade designates a 4 MHz maximum oscillator input, distinguishing it from the 20 MHz 20-grade variants. The LF suffix guarantees 1.8V to 3.6V operation across the industrial temperature range (-40C to +85C, I grade). Typical applications include battery-powered sensor interfaces, simple control logic, low-speed automation nodes, automotive body modules, and educational/hobbyist platforms where the PIC's RISC architecture and broad compiler support (MPASM, XC8) minimize firmware complexity. The wide operating voltage makes the LF84A particularly suited for 2-cell battery or regulated 3.3V rails. When designing with this MCU, ensure your code fits within the 1K x 14 word Flash and that interrupts use the single-vector scheme typical of mid-range PICs. For higher speed, larger memory, or modern peripherals, migrate to the PIC16F1xx or PIC16F18xx families; for ultra-low-power, consider the PIC16LF153xx. This page synthesizes current distributor pricing, verified drop-in alternatives, and practical design notes that complement, rather than duplicate, the Microchip datasheet.

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