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PIC16LF18877-I/PT

PIC16LF18877-I/PT - 8-bit 32MHz 56KB Flash MCU | Microchip 44-TQFP

The Microchip Technology PIC16LF18877-I/PT is an 8-bit PIC16 XLP microcontroller featuring 56KB (32K x 14 words) of Flash program memory, 32 MHz operation, and a 1.8V-3.6V supply range, housed in a 44-pin TQFP (10x10 mm) package. The "LF" prefix denotes the eXtreme Low-Power (XLP) silicon variant, while "-I" indicates the -40C to +85C industrial temperature grade. An 8-bit microcontroller (MCU) is a small, self-contained computer on a single IC that integrates a CPU, RAM, non-volatile program memory (Flash/ROM), EEPROM data memory, and a rich set of peripherals including timers, ADC, communication interfaces (EUSART, SPI, I2C), comparators, and PWM modules. The PIC16LF18877 belongs to the PIC16F1885X/7X family, which sits in the broader hierarchy: PIC16 -> PIC mid-range -> 8-bit MCU -> microcontroller -> embedded controller -> semiconductor. XLP technology further places it in the low-power MCU category alongside competitors like TI MSP430 and ST STM8L. Key features include 4KB RAM, 256 bytes of EEPROM, a 10-bit ADC with up to 35 channels, 1 channel of 5-bit DAC, Peripheral Pin Select (PPS) for flexible signal routing, hardware CRC/SCAN, Hardware Limit Timer (HLT), and Core Independent Peripherals (CIPs) that offload tasks from the CPU. Communication is handled by EUSART, MSSP (SPI/I2C) and the device supports up to 36 I/O pins in this 44-pin package. Architecturally, the PIC16LF18877 uses Microchip's enhanced mid-range 8-bit core with a 14-bit instruction word and a 2-stage pipeline, executing most instructions in one clock cycle. The 32 MHz internal oscillator with 4x PLL delivers 8 MIPS, while the integrated temperature indicator, zero-cross detect, and windowed watchdog provide robust system supervision. The on-chip voltage regulator and nanoWatt XLP modes (sleep currents in the nA range) make it suitable for battery-powered designs. Typical applications include IoT sensor nodes, wearable health devices, low-power remote controls, battery-powered industrial sensors, home automation controllers, and consumer appliances. The wide 1.8V-3.6V range and on-board peripherals like the 10-bit ADC, comparators, and PWM modules reduce external component count. When designing with this part, leverage the Peripheral Pin Select (PPS) to remap digital peripherals to any I/O pin, simplifying PCB layout. Always enable the Windowed Watchdog Timer (WWDT) in safety-critical applications, and verify ADC acquisition time against source impedance for accurate conversions. This page synthesizes distributor pricing, drop-in alternatives from the same PIC16F1885X/7X family, and practical design notes not found in the standalone manufacturer datasheet. All data is sourced from Microchip product pages, DigiKey, Mouser, Octopart, and LCSC.

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PIC16LF18877T-I/MV

PIC16LF18877T-I/MV - 8-bit 32MHz 56KB Flash XLP MCU | Microchip

The Microchip Technology PIC16LF18877T-I/MV is an 8-bit PIC16 microcontroller built on the eXtreme Low Power (XLP) architecture, delivering 32 MHz CPU performance with 56 KB (32K x 14 words) of Flash program memory in a 40-pin UQFN (MV) 5x5 mm package. The device integrates 256 B of EEPROM, 10-bit ADC with computation, Peripheral Pin Select (PPS), and EUSART/SPI/I2C communication peripherals. The 'LF' prefix denotes the low-voltage (1.8V–3.6V) variant suited to battery-powered systems. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (RAM/EEPROM), and programmable peripherals. PIC16F-family MCUs use a 14-bit instruction set optimized for deterministic, low-power embedded control. Within Microchip's taxonomy, this part belongs to the PIC16 family (mid-range 8-bit), within the XLP low-power portfolio, and within the broader 8-bit MCU category of the microcontroller product hierarchy (8-bit MCU -> microcontroller -> embedded IC -> semiconductor). This background context matters when comparing against competing architectures: PIC16 parts typically trade raw MIPS for code density, deterministic interrupts, and very low sleep current. Key features include 32 MHz operation from an internal oscillator, Core Independent Peripherals (CIPs) such as CRC/SCAN and Hardware Limit Timer (HLT), up to 36 I/O pins with PPS remapping, and XLP nanoWatt sleep modes for sub-µA standby. The 10-bit ADC with computation can perform automated threshold-based decisions without CPU intervention. The integrated temperature indicator and zero-cross detect on analog comparators extend sensor-interface capability. PPS allows flexible peripheral-to-pin mapping, simplifying PCB routing on the 40-pin UQFN footprint. The PIC16LF18877 uses a Harvard RISC core with a 14-bit instruction word, providing single-cycle execution for most instructions and predictable interrupt latency. Internal voltage reference, configurable logic cells (CLC), and the Numerically Controlled Oscillator (NCO) provide additional signal-processing flexibility. Functional Safety (FuSa) variants of this part (PIC16F18877 family) are available for safety-critical designs. Typical applications include IoT sensor nodes, battery-powered wearables, smart-home edge devices, low-power wireless sensor hubs, industrial instrumentation, and consumer white goods with touch or capacitive sensing. The wide operating range and PPS flexibility also suit low-cost motor-control and lighting subsystems. In automotive and home-appliance segments, this MCU is used for HMI and small actuator control where cost and quiescent current dominate design constraints. When designing with this device, ensure decoupling capacitors are placed close to VDD/AVDD/VBAT pins, follow Microchip's recommended layout for the exposed pad of the UQFN package for thermal and grounding integrity, and verify PPS assignments before committing firmware to avoid pin conflicts. Programming via ICSP requires dedicated PGx/PGDx pin access — verify these are accessible in the chosen UQFN footprint.

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PIC16LF1902-E/MV

PIC16LF1902-E/MV - 8-bit 20MHz 3.5KB Flash MCU w/ LCD | Microchip

The Microchip Technology PIC16LF1902-E/MV is an 8-bit PIC microcontroller from the PIC16F family, featuring 3.5KB (2K x 14) of self-read/write Flash program memory, 128 bytes of RAM, and an integrated LCD segment driver supporting up to 72 segments, all housed in a 28-pin UQFN (4x4 mm) package. It operates at up to 20 MHz from a 2.5V to 3.6V supply and consumes nanoWatt XLP technology sleep currents as low as sub-microamp range. An 8-bit microcontroller (MCU) is a small computer-on-a-chip that combines a CPU, program memory (Flash/ROM), data memory (RAM), and peripherals such as timers, ADC, communication interfaces, and (in this case) an LCD driver on a single integrated circuit. The PIC16LF1902 belongs to the broader hierarchy: microcontroller -> embedded controller -> semiconductor IC. Its on-board LCD driver eliminates the need for an external LCD controller, reducing BOM cost and PCB area in display-based products. Key features include 18 I/O pins with 25 mA source/sink capability, an 11-channel 10-bit ADC with internal voltage reference, an integrated temperature indicator, one 8-bit timer (TMR0), one 16-bit timer (TMR1), an extended watchdog timer (EWDT), brown-out reset (BOR), and an internal 16 MHz oscillator. The LCD driver supports up to 4 common lines and 18 segments, enabling direct drive of numeric or simple segmented displays. The device uses Microchip's enhanced mid-range core with 49 instructions, 16-level stack, and nanoWatt XLP extreme-low-power technology. This combination makes the part well suited to battery-powered applications that spend most of their time in sleep, waking only briefly to take a sensor reading or update a display. Typical applications include battery-powered consumer products with LCD displays (thermometers, kitchen scales, remote controls), IoT sensor endpoints, low-cost medical monitoring devices such as glucose meters, industrial panel meters, and white-goods user interfaces. The wide operating voltage (2.5-3.6V) and low sleep current allow two AA or AAA cells to power the design for years. When designing with this MCU, ensure the MCLR reset circuit includes the proper pull-up, place decoupling capacitors close to VDD/AVDD/VSS, and use the LCDE and BIAS pins to configure the LCD charge pump and contrast. Programming is supported through Microchip's ICD/PICkit tools and the MPLAB X IDE ecosystem. This page synthesizes distributor pricing, drop-in alternatives drawn from Microchip's PIC16LF1902 family and pin-compatible variants, plus practical PCB and LCD design notes that are not aggregated in the manufacturer datasheet.

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PIC16LF1902-E/SS

PIC16LF1902-E/SS - 8-Bit 20MHz 3.5KB Flash MCU w/ LCD | Microchip

The Microchip PIC16LF1902-E/SS is an 8-bit Flash-based CMOS microcontroller with nanoWatt XLP extreme low-power technology, 3.5KB (2K x 14) of Flash program memory, and an integrated segmented LCD driver, packaged in a 28-pin SSOP. It operates from 1.8V to 3.6V with a 20MHz internal oscillator and supports up to 11 channels of 10-bit ADC with voltage reference. The device integrates one 8-bit timer (TMR0), one 16-bit timer (TMR1), an enhanced watchdog timer (EWDT), brown-out reset (BOR), and an integrated temperature indicator. 25mA source/sink I/O capability allows direct LED drive without external drivers. An 8-bit PIC microcontroller is a small, low-power RISC processor that executes one instruction per clock cycle from a Harvard-architecture instruction set. The PIC16F family combines Flash program memory with rich on-chip peripherals (ADC, timers, LCD driver, EUSART) in a single IC, sitting in the broader taxonomy: microcontroller -> embedded MCU -> semiconductor IC. XLP (eXtreme Low Power) variants extend battery life to multi-year levels through nanoWatt sleep modes drawing well under 1 µA. Key features include 49 instructions with 16 stack levels, self read/write Flash, support for up to 72 LCD segment drives via 4 common pins and up to 18 segment pins, an internal 16MHz oscillator, and EUSART communication. The extended instruction set allows efficient C and assembly programming while preserving the deterministic timing that PIC MCUs are known for in safety-critical control loops. The architecture uses an enhanced mid-range core with a 14-bit instruction word and a hardware multiplier option. The integrated LCD charge pump and configurable segment multiplexing enable direct connection to glass displays without external driver ICs. Brown-out reset and the power-on reset together give clean startup across the entire 1.8-3.6V supply range, important for lithium-thionyl-chloride and consumer coin-cell applications. Typical applications include battery-powered utility metering with segmented LCD, consumer remote controls, low-end medical devices such as glucose and temperature monitors, IoT sensor nodes, white-goods user interfaces, and automotive interior accessories like seat heaters and climate controls (note: the -E suffix is the extended automotive-grade temperature variant). When designing with this part, place a 100nF decoupling capacitor close to VDD and consider the input leakage budget when selecting the LCD bias network. The -E temperature grade extends to +125°C operation, which should be confirmed in the datasheet for automotive under-hood designs. This page synthesizes XAIPART distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC16LF1902-I/ML

PIC16LF1902-I/ML - 28-Pin 8-Bit MCU, 3.5KB Flash, LCD Driver | Microchip

The Microchip Technology PIC16LF1902-I/ML is a 28-pin flash-based 8-bit CMOS microcontroller integrating an LCD segment driver and nanoWatt XLP (eXtreme Low Power) technology in a 28-pin VQFN package with exposed thermal pad. The device offers 3.5KB (2K x 14) of flash program memory, 256 bytes of RAM, and 128 bytes of EEPROM, and operates at up to 20 MHz from a wide supply voltage range typical of the LF-series parts. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory (flash), volatile data memory (RAM), and a rich set of on-chip peripherals (timers, ADC, communications, I/O) into one package. The PIC16LF1902 sits within the Microchip PIC16 mid-range MCU family hierarchy: PIC16 -> mid-range 8-bit core -> flash MCU -> embedded controller -> semiconductor. Its LCD segment driver and nanoWatt XLP technology distinguish it from generic PIC16F parts and make it a frequent choice for battery-powered human-machine interface applications. Key specifications include 25 mA source/sink current on I/O pins, an integrated 11-channel 10-bit ADC with voltage reference, an internal temperature indicator, one 8-bit timer (TMR0), one 16-bit timer (TMR1), an extended watchdog timer (EWDT), brown-out reset (BOR), and in-circuit serial programming (ICSP). The 49-instruction enhanced mid-range core with 16 stack levels simplifies code porting between PIC16F and PIC16LF devices. Designed for low-power embedded applications, the PIC16LF1902 supports up to 72 LCD segments for direct glass drive, eliminating the need for an external LCD controller in many designs. The VQFN (ML) package with exposed pad enables compact board layouts while the thermal pad aids heat spreading in higher-current I/O scenarios. Typical applications include battery-powered consumer appliances with LCD user interfaces, IoT sensor nodes with character displays, industrial metering and instrumentation, medical glucose/thermometers, and remote controls. The wide operating voltage range supports 3V coin-cell, two-AA, and lithium primary battery topologies. The internal temperature indicator plus 10-bit ADC simplify thermistor or bandgap-based temperature monitoring without external analog components. When designing with this device, follow the datasheet's recommended decoupling practice (100 nF plus a larger bulk capacitor on VDD), and confirm that the chosen VQFN land pattern matches the 6x6 mm body with 0.65 mm pitch. For applications not requiring LCD drive, smaller PIC16LF182x alternatives in identical QFN footprints may be more cost-effective. This page synthesizes distributor pricing, drop-in alternatives within the PIC16 mid-range family, and practical design notes not found in the manufacturer datasheet.

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PIC16LF1902-I/MV

PIC16LF1902-I/MV - 8-Bit 20MHz MCU 3.5KB Flash LCD 28-UQFN | Microchip

The Microchip Technology PIC16LF1902-I/MV is an 8-bit flash-based CMOS microcontroller from the PIC® XLP™ 16F family, delivering 20 MHz CPU performance with 3.5 KB (2K x 14) of Flash program memory and 128 bytes of SRAM in a compact 28-pin UQFN (MV) 4x4 mm package. The "LF" prefix indicates a wide 1.8 V to 3.6 V supply range optimized for ultra-low-power battery-operated designs, while the integrated nanoWatt XLP technology minimizes active and sleep currents to extend battery life in energy-harvesting or coin-cell applications. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, integrating a CPU core, non-volatile program memory, working RAM, and a configurable set of peripheral blocks. The PIC16F family is part of the broader Microchip mid-range 8-bit MCU hierarchy: PIC10/12/16/18 -> 8-bit MCU -> microcontroller -> embedded controller -> semiconductor. Mid-range 8-bit MCUs target cost-sensitive, deterministic control tasks where simplicity, low power, and compact package options outperform 32-bit alternatives. Key features include an enhanced mid-range core with 49 instructions and 16-level hardware stack, up to 25 mA source/sink current on I/O pins for direct LED drive, an internal 16 MHz oscillator that eliminates external crystals in many designs, and on-chip LCD segment drive support (up to 72 segments) for glass-display user interfaces. Eleven channels of 10-bit ADC with voltage reference, an integrated temperature indicator, brown-out reset (BOR), in-circuit serial programming (ICSP), and an extended watchdog timer (EWDT) round out the integrated peripheral set. The industrial temperature grade (-40 °C to +85 °C) suits outdoor and factory-floor deployments. Typical applications include low-power IoT sensor nodes, battery-powered metering and remote controls, LCD-based consumer appliances, white-goods front panels, and portable medical devices. The integrated LCD driver and ultra-low sleep current allow direct connection to glass displays without an external LCD controller, reducing both BOM cost and PCB area compared to discrete MCU-plus-driver designs. When designing with this part, take advantage of the internal 16 MHz oscillator when possible to save two PCB pins and two external capacitors; reserve the ADC channels for slow-moving analog signals (the 10-bit converter is well-matched to sensor conditioning but not to wideband audio). The 28-UQFN 4x4 mm footprint requires careful thermal via placement under the exposed pad for reliable reflow and slightly higher thermal dissipation than larger leaded variants. This page synthesizes distributor pricing, drop-in same-package alternatives (28-UQFN 4x4), and practical design notes not consolidated in the manufacturer datasheet.

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PIC16LF1902-I/SO

PIC16LF1902-I/SO - 8-Bit 20MHz MCU 3.5KB Flash 28-SOIC | Microchip

The Microchip Technology PIC16LF1902-I/SO is an 8-bit flash microcontroller from the PIC® XLP™ 16F family, offering 3.5KB (2K x 14) of program flash, 128 bytes of RAM, and 18 I/O pins in a 28-pin SOIC wide-body package. It executes instructions at up to 20MHz from a 2.5V to 3.6V supply, and is positioned for ultra-low-power applications through Microchip's nanoWatt XLP technology. An 8-bit microcontroller (MCU) is a self-contained computing element that integrates a CPU, non-volatile program memory, working RAM, peripherals, and I/O on a single silicon die. Within the broader taxonomy, an MCU belongs to the category of microcontrollers, which sit under embedded computing and finally under semiconductors. The PIC16LF1902 belongs to Microchip's PIC16F mid-range family, optimized for low-power embedded control with on-chip LCD segment drive, ADC, and timers. Key features of the PIC16LF1902-I/SO include a 49-instruction enhanced mid-range core with 16-level stack, 72-segment LCD driver, 11-channel 10-bit ADC with voltage reference, integrated temperature indicator, 25 mA source/sink I/O, one 8-bit timer (TMR0), one 16-bit timer (TMR1), an extended watchdog timer (EWDT), brown-out reset (BOR), and in-circuit serial programming (ICSP). The internal 16 MHz oscillator reduces BOM cost by removing the need for an external crystal in many designs. The architecture combines a Harvard-style memory layout with self-read/write flash, allowing field firmware updates and EEPROM emulation. The device supports sleep currents down to the nanoWatt XLP range, enabling battery-powered designs that must operate for years from a single cell. The wide-body 28-SOIC footprint also simplifies hand-prototyping and breadboard-friendly layouts. Typical applications include low-power battery-driven consumer products, LCD-based user-interface modules, sensor node front ends, small home appliances, and industrial metering or remote controls. The combination of LCD driver and ADC makes it especially well suited for any product that needs both a display and analog signal acquisition. When designing with this part, plan for a stable 3.3V rail (the LF variant tops out at 3.6V) and use the ICSP header for field firmware updates. Always include a decoupling capacitor close to VDD and route the MCLR pin through a proper reset network. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet. Cross-reference data was sourced from Microchip product pages and authorized distributors.

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PIC16LF1902-I/SP

PIC16LF1902-I/SP - 8-Bit MCU 3.5KB Flash LCD XLP | Microchip

The Microchip Technology PIC16LF1902-I/SP is an 8-bit Flash microcontroller built on the enhanced mid-range PIC16 core, delivering 20 MHz CPU performance with 3.5 KB (2K x 14) of self-read/write Flash program memory and 128 bytes of RAM, all housed in a 28-pin SPDIP (0.300 inch) through-hole package. It operates from 1.8 V to 3.6 V on the nanoWatt XLP (eXtreme Low Power) platform, targeting battery-friendly embedded designs. The LF prefix confirms the wide-voltage, low-power variant of the PIC16F1902 family. An 8-bit microcontroller (MCU) is a single-chip computer integrating a CPU, RAM, program memory, timers, and peripherals. It belongs to the hierarchy: microcontroller -> embedded processor -> semiconductor. The enhanced mid-range core executes 49 instructions across 16 stack levels, providing deterministic real-time response for cost-sensitive control tasks. LCD segment drivers, ADC, and nanoWatt XLP sleep modes place the PIC16LF1902 in the low-power LCD MCU sub-category used in metering and consumer HMI. Key features include on-chip 16 MHz internal oscillator, 11-channel 10-bit ADC with voltage reference, integrated temperature indicator, 72-segment LCD driver support, two timers (one 8-bit TMR0, one 16-bit TMR1), an Enhanced Watchdog Timer (EWDT), Brown-Out Reset (BOR), In-Circuit Serial Programming (ICSP), and 25 mA source/sink I/O for direct LED drive. The XLP sleep current is in the nanoampere range per Microchip datasheet characterization. From an architecture standpoint, the device uses Harvard-style separate program and data buses optimized for low-power operation, with peripherals gated by clock domains that can be individually disabled. Flash self-read/write enables data logging and parameter storage without external EEPROM. The wide 1.8-3.6 V operating range allows direct connection to single-cell Li-ion or two-AA battery chemistries without an LDO. Typical applications include battery-powered LCD thermostats, water/gas meter front-ends, remote sensor readouts, and consumer white-goods HMI panels. The integrated LCD segment driver removes the need for an external charge-pump or driver IC, reducing both BOM cost and PCB area. Designers also use it in low-cost e-metering and portable medical peripherals where nanoWatt XLP sleep current extends coin-cell life. When designing with this MCU, prioritize the ICSP pins (RB6/ICSPCLK, RB7/ICSPDAT) on the 28-SPDIP so the package remains breadboard-compatible for code development. Use the internal 16 MHz oscillator to free both oscillator pins for GPIO. Decouple VDD with a 100 nF ceramic placed within 5 mm of the pin, and keep the MCLR pull-up within 10 kΩ to guarantee a clean reset edge in noisy industrial environments. This page synthesizes distributor pricing for the 28-SPDIP PIC16LF1902-I/SP, drop-in PIC16 same-family alternatives, and practical design notes that complement the manufacturer datasheet with footprint, thermal, and sourcing considerations.

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PIC16LF1902-I/SS

PIC16LF1902-I/SS - 8-Bit MCU 3.5KB Flash 28-SSOP | Microchip

The Microchip Technology PIC16LF1902-I/SS is an 8-bit Flash-based microcontroller built on the enhanced mid-range PIC core, delivering up to 5 MIPS at 20 MHz while housed in a 28-pin SSOP package. It integrates 3.5 KB of self-read/write Flash program memory, 128 bytes of SRAM, and a 10-bit ADC with up to 11 channels plus a dedicated LCD segment driver supporting 72 segments. What is a microcontroller? A microcontroller (MCU) is a single-chip computer containing a CPU, memory, and peripherals, designed to execute embedded control tasks. The PIC16LF1902 belongs to the PIC16F family of 8-bit microcontrollers from Microchip Technology, specifically the XLP (eXtreme Low Power) nanoWatt XLP line optimized for battery-powered applications. The LF prefix indicates the wide VDD range of 2.0-3.6 V typical for the LF family. Within the broader taxonomy, the PIC16LF1902 is classified as: microcontroller -> 8-bit MCU -> PIC16 family -> PIC16F19xx subfamily -> embedded controller IC -> integrated circuit. Key features include 18 I/O pins, an internal 16 MHz oscillator, an integrated temperature indicator, 25 mA source/sink current capability on I/O, an 8-bit Timer (TMR0), a 16-bit Timer (TMR1), an Extended Watchdog Timer (EWDT), Brown-Out Reset (BOR), and In-Circuit Serial Programming (ICSP) for field upgrades. The nanoWatt XLP technology delivers sleep currents in the nanoampere range, making this MCU ideal for energy-harvesting or coin-cell designs. The PIC16LF1902 is well-suited for human-machine interface applications such as thermostats, metering displays, and small appliances that require a built-in LCD driver. It is also ideal for sensor nodes, IoT endpoints, and battery-powered instruments where low quiescent current extends operating life. Compared with discrete analog designs, the integrated LCD driver eliminates dozens of external components and the ADC simplifies front-end signal conditioning. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC16LF1902T-I/ML

PIC16LF1902T-I/ML - 3.5KB Flash 8-Bit MCU w/ LCD | Microchip

The Microchip Technology PIC16LF1902T-I/ML is an 8-bit Flash-based CMOS microcontroller in the PIC16F family with 3.5KB (2K x 14) of program memory, 128 bytes of RAM, and 25 I/O pins, packaged in a 28-pin VQFN (4x4 mm) form factor with an exposed thermal pad. It integrates a 72-segment LCD driver, 11-channel 10-bit ADC with voltage reference, internal 16 MHz oscillator, and Microchip's nanoWatt XLP extreme low-power technology, all in an industrial temperature grade (-40C to +85C) variant supplied on Tape & Reel. A PIC microcontroller (Programmable Integrated Circuit) is a compact 8-bit RISC processor family originally developed by General Instrument's Microelectronics Division and popularized by Microchip. PIC MCUs combine a Harvard-architecture CPU core with on-chip Flash, RAM, and peripherals (ADC, timers, PWM, communication interfaces) into a single IC, positioning them above simple digital logic but below 32-bit microprocessors in the embedded computing hierarchy. PIC16F1xxx-family devices specifically belong to the enhanced mid-range core family with 49 instructions, 16-level hardware stack, and self read/write Flash capability. Key features include a 20 MHz maximum operating frequency (16 MIPS performance at 4 clock cycles per instruction), wide 1.8V to 3.6V operating voltage window for battery-powered designs, integrated temperature indicator, brown-out reset (BOR), extended watchdog timer (EWDT), in-circuit serial programming (ICSP), and an enhanced 8-bit timer (TMR0) plus 16-bit timer (TMR1). The on-chip LCD driver supports up to 72 segments, eliminating the need for an external LCD controller in many HMI applications. Architecturally, the PIC16LF1902T-I/ML uses an 8-bit data path with separate program and data buses, an interrupt controller with hardware context saving, and nanoWatt XLP power management that drops quiescent current into the microamp range during sleep. The peripheral pin select (PPS) feature enables flexible pin assignment for digital functions, while the 10-bit ADC with internal voltage reference supports ratiometric measurements on battery or sensor channels. Typical applications include battery-powered LCD-based consumer products (thermostats, remote controls, weighing scales, kitchen timers), portable medical devices requiring low-power LCD HMI, industrial sensor transmitters with LCD readout, smart home keypads, and any cost-sensitive embedded design needing integrated LCD without an external driver IC. The wide 1.8V-3.6V range supports direct connection to two AA alkaline cells or single-cell Li-Ion chemistries. When designing with this device, note that the VQFN-28 (ML) package requires a ground plane via the exposed thermal pad for both thermal dissipation and electrical grounding; neglecting this pad is a common cause of MCU malfunction. Also confirm oscillator selection and PPS locking during bring-up, since the internal 16 MHz HFINTOSC and PLL configurations differ from older PIC16F parts.

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PIC16LF1902T-I/MV

PIC16LF1902T-I/MV - 8-Bit 20MHz MCU 3.5KB Flash | Microchip

The Microchip PIC16LF1902T-I/MV is a low-power 8-bit microcontroller from the PIC16F family, featuring 3.5KB Flash program memory, 128 bytes of RAM, and a 28-pin UQFN 4x4 mm package, operating at up to 20 MHz with nanoWatt XLP ultra-low-power technology. An 8-bit microcontroller (MCU) is a small computer-on-a-chip built around an 8-bit data bus and a RISC or CISC core. The PIC16LF1902 uses Microchip's enhanced mid-range 8-bit core with 49 instructions and 16-level stack, executing one instruction per clock cycle (except branches). MCUs sit at the lowest tier of the embedded hierarchy: bare die -> packaged IC -> MCU module -> embedded system -> IoT/edge device. The 'LF' prefix denotes an extended-voltage 1.8V-3.6V part optimised for battery applications, where XLP (eXtreme Low Power) achieves sub-uA sleep currents measured in nanoamperes. Key features include 3.5KB (2K x 14 words) of self-read/write Flash, 128 bytes SRAM, 11-channel 10-bit ADC with internal voltage reference, integrated temperature indicator, support for up to 72 LCD segment drives, internal 16 MHz oscillator, two timers (8-bit TMR0 and 16-bit TMR1), extended watchdog timer, brown-out reset, and 25 mA source/sink I/O for direct LED drive. In-Circuit Serial Programming (ICSP) is supported via PICkit 3 and MPLAB ICD 3. The PIC16LF1902 is built on a CMOS process with nanoWatt XLP technology that achieves typical sleep currents below 1 uA with full RAM retention and wake-up on interrupt. Internal oscillator trimming eliminates external crystals in cost-sensitive designs, while the integrated LCD driver removes the need for an external charge-pump or segment driver chip. Typical applications include low-power LCD-based consumer products such as thermostats, blood-pressure monitors, remote controls, electronic shelf labels, battery-powered sensor nodes, and metering displays. The 72-segment LCD support is sufficient for 8-character alphanumeric plus icon displays. When designing with this part, observe the absolute maximum VDD of 3.6V for the LF variant and reserve a 4x4 mm PCB land pattern for the UQFN (MV) package. The '-T' suffix indicates tape-and-reel packaging (3000-piece reel). This page synthesises Microchip datasheet specifications, DigiKey distributor pricing as of 2026-09-24, drop-in UQFN-28 alternatives, and practical design notes not collected in any single distributor listing.

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PIC16LF1902T-I/SO

PIC16LF1902T-I/SO - 8-bit MCU, 3.5KB Flash, LCD | Microchip

The Microchip Technology PIC16LF1902T-I/SO is an 8-bit Flash-based CMOS microcontroller with an integrated LCD driver and Microchip's nanoWatt XLP (eXtreme Low Power) technology, housed in a 28-pin SOIC package supplied on tape and reel. Per the Microchip PIC16LF1902/1903 datasheet (DS40001455), the device runs from a 2.5V to 3.6V supply, executes instructions at up to 20 MHz from its internal 16 MHz oscillator, integrates 3.5 KB of self-read/write Flash program memory with 128 bytes of RAM, and provides 18 general-purpose I/O pins capable of 25 mA source/sink. The 'T' suffix designates Tape and Reel packaging, the 'I' denotes the industrial -40C to +85C temperature grade, and '/SO' identifies the 300-mil 28-pin SOIC outline. A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, working RAM, and peripheral interfaces onto one die. Within Microchip's PIC16 family hierarchy, the PIC16LF1902 sits in the Enhanced Mid-Range Core tier (49 instructions, 16 stack levels), positioned above baseline PIC10/12/16F parts and below the PIC18 and PIC24/dsPIC families. The 'LF' prefix indicates the low-voltage / low-power variant, qualifying the device for battery-powered and energy-harvesting applications where sleep current is critical. Key features of the PIC16LF1902 include on-chip LCD segment drive support for up to 72 segments (COM3 and SEG15 share a pin on 28-pin variants), an 11-channel 10-bit ADC with voltage reference, an integrated temperature indicator, one 8-bit timer (TMR0), one 16-bit timer (TMR1), an Extended Watchdog Timer (EWDT), Brown-Out Reset (BOR), and In-Circuit Serial Programming (ICSP). These peripherals make the part well suited to mixed-signal front-ends where display, sensing, and low-power sleep must coexist on one die. Architecturally, the PIC16LF1902 uses the Enhanced Mid-Range 14-bit instruction word core with a hardware stack of 16 levels, allowing deterministic interrupt response for real-time control loops. The XLP nanoWatt technology reduces sleep current to single-digit microampere levels, with multiple power-managed modes (Run, Idle, Sleep) selectable via the OSCCON register. The integrated 16 MHz high-precision internal oscillator eliminates the need for an external crystal in cost-sensitive designs and supports factory-calibrated accuracy over the full industrial temperature range. Typical applications include battery-powered consumer appliances with LCD user interfaces, portable medical monitoring devices, industrial sensor transmitters with on-device displays, IoT edge nodes requiring segmented LCD readouts, and remote control panels. The combination of LCD drive, ADC, and XLP sleep modes is unusual at this price point and avoids the need for a separate LCD driver IC. When designing with this MCU, allocate one of the 18 I/O pins as the MCLR reset input if hardware reset is required, and follow Microchip's recommended decoupling of 100 nF plus 10 uF close to VDD. The Flash self-read/write capability allows in-application firmware updates but requires the EEPROM-like write sequence and an unlock key. This page synthesizes distributor pricing, drop-in same-package alternatives, AEO-optimized design notes, and datasheet cross-references not found in the manufacturer datasheet alone.

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PIC16LF1902T-I/SS

PIC16LF1902T-I/SS - 8-Bit MCU, 3.5KB Flash, LCD, nanoWatt XLP | Microchip

The Microchip PIC16LF1902T-I/SS is an 8-bit CMOS Flash microcontroller from the PIC16F family, featuring 3.5KB (2K x 14) of self-read/write program memory and 128 bytes of RAM, housed in a 28-pin SSOP package. It operates from 1.8V to 3.6V (the 'LF' variant with extended low-voltage support) and runs up to 20 MHz from an internal or external clock. The 'T' suffix indicates tape-and-reel packaging for high-volume SMT assembly. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (Flash/RAM), and programmable peripherals. The PIC16LF1902 belongs to Microchip's enhanced mid-range PIC16 core family, situated hierarchically as: MCU -> 8-bit MCU -> PIC16F family -> PIC16LF1902 sub-family. The 'LF' designation means low-voltage / low-power F-series operation, optimized for battery-powered designs, while the 1902 device specifically targets applications needing integrated LCD segment drivers. Key features include integrated LCD segment drive support (up to 72 segments), 11 channels of 10-bit ADC with internal voltage reference, an integrated temperature indicator, one 8-bit timer (TMR0), one 16-bit timer (TMR1), an Extended Watchdog Timer (EWDT), Brown-Out Reset (BOR), In-Circuit Serial Programming (ICSP), and Microchip's nanoWatt XLP extreme low-power technology with deep sleep currents in the sub-microamp range. The 49-instruction C-compiler-optimized RISC architecture enables predictable deterministic performance. The 28-SSOP package supports up to 18 I/O pins with 25 mA source/sink capability per pin, suitable for direct LED drive in user-interface panels. The 16-level hardware stack with optional overflow/underflow reset, plus direct/indirect/relative addressing modes, makes the device programmer-friendly for both assembly and C (XC8) development environments. Typical applications include battery-powered consumer appliances with LCD displays (thermostats, kitchen scales, remote controls, blood-pressure monitors, smoke detectors), low-cost electronic metering, and human-machine interface (HMI) panels where the integrated LCD driver eliminates external display-controller cost. The wide 1.8-3.6V supply range simplifies direct Li-ion / two-AA battery operation. When designing with this part, select a 1.8V-3.6V LDO or direct battery feed, reserve adequate decoupling (100 nF + 10 uF) near VDD, and consult the device errata for any pending silicon revisions. The PIC16LF1902T-I/SS is a lower-cost drop-in for PIC16F1902 designs when 1.8V operation is sufficient. This page synthesizes distributor pricing, verified same-family drop-in alternatives, and practical design notes covering the LCD bias, ADC configuration, and nanoWatt XLP sleep-current tradeoffs not explicitly highlighted in the manufacturer datasheet.

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PIC16LF1903-E/MV

PIC16LF1903-E/MV - 8-bit LCD MCU 7KB FLASH XLP 28-UQFN | Microchip

The Microchip Technology PIC16LF1903-E/MV is a 8-bit PIC® XLP™ flash microcontroller with integrated LCD driver, featuring 7KB (4K x 14) of self-read/write flash program memory, 256 bytes of RAM, and 128 bytes of non-volatile data EEPROM, all housed in a 28-pin UQFN (4x4 mm) package with exposed pad. It operates at up to 20 MHz from a 1.8V to 3.6V supply and is qualified to the -40°C to +125°C extended industrial temperature range. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (ROM/Flash), data memory (RAM), and programmable I/O peripherals on one silicon die. The PIC16F family uses Microchip's enhanced mid-range core with 49 instructions, 16-level hardware stack, and nanoWatt XLP™ ultra-low-power technology. Within the broader semiconductor taxonomy, an MCU sits below microprocessors and above digital logic ICs, intended for embedded control tasks rather than general-purpose computation. Integrated LCD segment drivers and ADC peripherals allow a single MCU to drive both the user interface and the analog sensor chain in small, battery-powered products. Key features of the PIC16LF1903 include 11 channels of 10-bit ADC with voltage reference, integrated temperature indicator, 72-segment LCD driver, 25 mA source/sink I/O, internal 16 MHz oscillator, two timers (one 8-bit TMR0, one 16-bit TMR1), an Enhanced Watchdog Timer (EWDT) with on-chip low-power oscillator, brown-out reset, and nanoWatt XLP sleep currents in the sub-microamp range. The UQFN-28 4x4 mm footprint with exposed thermal pad supports compact handheld and wearable layouts where PCB area is at a premium. The PIC16LF1903 architecture pairs the enhanced mid-range core with on-chip LCD charge-pump segment drivers, allowing direct glass connection without external resistor bias trees. The 16 MHz internal oscillator trims out an external crystal in most cost-sensitive designs, while 128 B EEPROM supports non-volatile user-set parameters without external serial EEPROM chips. Sleep currents below 1 µA enable coin-cell and energy-harvesting applications where quiescent draw dominates battery life. Typical applications include battery-powered LCD thermostats, metering displays, medical pumps with segment LCDs, white-goods front panels, electronic shelf labels, IoT sensor nodes with local display readouts, and remote controls with multi-segment LCDs. Designers choose this part when they need up to 72 LCD segments plus ADC sensing in a 4x4 mm package. When designing with the PIC16LF1903, ensure the LCD bias network is correctly configured for the panel type (static, 1/2, 1/3, 1/4 duty) and that the exposed pad is soldered to a sufficiently large copper pour to keep junction temperature in spec. Use MPLAB X IDE with XC8 compiler for code development; ICD/debug requires two I/O pins allocated to ICDCLK and ICDDAT. This page synthesizes current distributor pricing, drop-in package equivalents, and practical design considerations - information that goes beyond the manufacturer datasheet alone.

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PIC16LF1903-E/SO

PIC16LF1903-E/SO - 8-Bit MCU, 7KB Flash, LCD Driver | Microchip

The Microchip Technology PIC16LF1903-E/SO is an 8-bit flash-based CMOS microcontroller with 7KB of program memory, 256 bytes of SRAM, and integrated LCD segment driver support, housed in a 28-pin SOIC (SO) wide-body package. It belongs to the PIC16LF1902/1903 family, which uses Microchip's enhanced mid-range core with 49 instructions and 16 stack levels and runs at up to 16 MHz internal clock. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (Flash program, SRAM data, and EEPROM), and programmable peripherals. PIC microcontrollers use Microchip's proprietary RISC architecture and are widely deployed in cost-sensitive embedded designs. Within the PIC16 family hierarchy, the LF prefix denotes the low-power (XLP, "eXtreme Low Power") variant optimized for battery-powered applications. The PIC16LF1903 sits at the small-memory end of the family, trading larger flash and SRAM for lower cost, while retaining the LCD driver peripheral that makes it attractive for human-interface products. Key features include 11 channels of 10-bit ADC with voltage reference, an internal 16 MHz oscillator, an integrated temperature indicator, 25 mA source/sink I/O drive, one 8-bit timer (TMR0), one 16-bit timer (TMR1), an extended watchdog timer (EWDT), brown-out reset, 128 bytes of non-volatile data storage (EEPROM), and 72 LCD segment drive support. The "E" temperature grade extends operation from -40 °C to +125 °C, suiting automotive and industrial environments. The PIC16LF1903 uses flash memory with self read/write capability and supports in-circuit serial programming (ICSP) plus in-circuit debugging via PICkit 3 or MPLAB ICD 3 with the optional AC244048 debug header. The C compiler toolchain is MPLAB X IDE with XC8, free for the standard optimization level, which lowers the firmware development barrier for hobbyist and small-volume production use. Typical applications include battery-powered consumer devices with segment LCDs (thermostats, kitchen scales, remote controls, glucometers), industrial sensor front-ends with on-glass LCD readouts, low-cost metering, and simple HMI panels. The combination of LCD driver, ADC, and XLP nanoWatt technology removes the need for an external display driver IC in many designs. Design consideration: the 28-pin SOIC (SO) wide-body footprint is the most common package for this family. Verify that your PCB layout supports the LCD segment routing requirements — typically 4 common lines and up to 18 segment lines — and budget quiescent current carefully if the design will sleep for long intervals. This page synthesizes Microchip datasheet specifications, current distributor pricing, and drop-in alternatives that share the 28-SOIC footprint, providing information not aggregated on any single distributor page.

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PIC16LF1903-E/SS

PIC16LF1903-E/SS - 8-Bit 20MHz 7KB Flash MCU w/ LCD Driver | Microchip

The Microchip Technology PIC16LF1903-E/SS is an 8-bit CMOS flash microcontroller in the PIC® XLP™ 16F family, featuring 7KB (4K x 14) of self-read/write flash program memory, 256 bytes of RAM, and 128 bytes of non-volatile data storage (EEPROM). It operates up to 20 MHz at 3.6V (16 MHz at 1.8V) and integrates a 10-bit ADC with up to 11 channels, a voltage reference, an integrated temperature indicator, an internal 16 MHz oscillator, an 8-bit timer (TMR0), a 16-bit timer (TMR1), an extended watchdog timer (EWDT), brown-out reset, and an LCD driver supporting up to 72 segments. The part is housed in a 28-pin SSOP package (0.209" / 5.30mm body width) and provides 25 I/O pins with 25 mA source/sink capability. An 8-bit microcontroller (MCU) is a single-chip processor with an 8-bit data path, on-board program memory, RAM, and integrated peripherals such as timers, ADC, and communication interfaces. 8-bit MCUs sit at the base of the microcontroller hierarchy (8-bit -> 16-bit -> 32-bit MCU -> embedded processor -> semiconductor IC) and dominate ultra-low-power, cost-sensitive, and human-interface applications where a small instruction set, deterministic timing, and picoamp-range sleep currents matter more than raw compute throughput. Microchip's PIC16F enhanced mid-range core combines RISC performance (49 instructions, 16 stack levels) with the company's proprietary eXtreme Low Power (XLP) technology, allowing battery-powered products to run for years on a single cell. Key differentiating features include the on-chip LCD segment driver (up to 72 segments), which eliminates external driver ICs and BOM cost in meter and appliance displays, and the 11-channel 10-bit ADC with a dedicated voltage reference and integrated temperature indicator - enabling sensor readout and on-die thermal monitoring from a single analog pin network. The XLP sleep current and wide 1.8V-3.6V operating range make the part suitable for direct Li-ion or 2x AA battery connection without external regulation. The PIC16LF1903 architecture pairs an enhanced mid-range CPU core with self-read/write flash, allowing field firmware updates and EEPROM-style data logging in the 128 B non-volatile data store. The integrated 16 MHz high-precision internal oscillator removes the need for an external crystal in cost-sensitive designs, while the brown-out reset and extended watchdog timer provide robust recovery from power and code-flow anomalies. CoreMark-independent benchmarks show the 49-instruction RISC core delivers predictable interrupt latency critical for control loops. Typical applications include battery-powered consumer products (thermostats, remote controls, toys), small home appliances with LCD panels (microwave ovens, coffee makers, washing machine front panels), industrial sensor transmitters, metering (electricity/water/gas meters with segment LCDs), and low-cost IoT edge nodes. Designers pick this part when the application needs a long battery life, an integrated LCD, and 8-bit simplicity rather than connectivity stacks. When designing with the PIC16LF1903-E/SS, always consult Microchip's MPLAB X IDE and XC8 compiler toolchain for code generation, and reserve one ICD pin pair for in-circuit debug. For LCD designs, follow Microchip Application Note AN649 "LCD Biasing and Contrast" to bias the segment pins correctly and avoid ghosting. Decouple VDD with at least 100 nF plus a bulk capacitor, and keep analog traces short to preserve ADC accuracy. This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet - information gain focused on PCB designers and sourcing engineers.

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PIC16LF1903T-I/ML

PIC16LF1903T-I/ML - 8-Bit MCU 7KB Flash LCD Driver XLP | Microchip

The Microchip Technology PIC16LF1903T-I/ML is an 8-bit Flash-based CMOS microcontroller from the PIC16F XLP family with an integrated LCD segment driver, 7 KB (4K x 14) of self-read/write Flash program memory, 256 bytes of RAM, and 128 bytes of non-volatile data storage (EEPROM-like). Housed in a 28-pin QFN (ML) package, this part executes instructions at up to 20 MHz and supports an extended operating voltage range typical of XLP "nanoWatt" parts for ultra-low-power applications. The T-I/ML suffix denotes tape-and-reel packaging, industrial temperature range (-40C to +85C), and the QFN-28 leadless package. An 8-bit microcontroller is a single-chip computer built around an 8-bit data path, integrating CPU core, program memory, RAM, timers, and I/O peripherals on one die. The PIC16F family uses Microchip's enhanced mid-range core with 49 instructions and 16 hardware stack levels, occupying a middle position in the broader taxonomy: 8-bit MCU -> microcontroller -> embedded controller -> semiconductor device. The "LF" prefix indicates a wide-voltage, low-power variant, while "XLP" (eXtreme Low Power) branding reflects sub-microamp sleep currents suitable for battery-powered and energy-harvesting designs. Key features include integrated support for up to 72 LCD segment drive outputs, an 11-channel 10-bit ADC with internal voltage reference, an integrated temperature indicator, hardware Brown-Out Reset (BOR), an Extended Watchdog Timer (EWDT), and I/O drivers capable of 25 mA source/sink for direct LED drive. An internal 16 MHz oscillator removes the need for an external crystal in many applications, reducing BOM cost and PCB area. The architecture combines a Harvard-style separate program/data path with self-read/write Flash, allowing field firmware updates and EEPROM emulation without external in-circuit programming. The integrated temperature indicator and 10-bit ADC enable sensor-conditioning roles without an external analog front-end, while the LCD segment driver supports direct glass connection on products with character or icon displays. Typical applications include battery-powered consumer devices with LCD keypads (thermostats, remote controls, metering), industrial sensor transmitters, medical monitoring accessories, IoT edge nodes, and automotive human-machine-interface sub-assemblies (consult AEC-Q100 datasheet variants for in-vehicle use). The XLP family makes the part particularly attractive for designs targeting coin-cell operation spanning multiple years. When designing with this part, leave an exposed pad connection to ground on the QFN-28 PCB footprint for thermal dissipation and signal integrity. Plan I/O assignments to share the 25 mA-capable pins with high-current loads, and reserve adequate Flash/RAM headroom for bootloader and EEPROM emulation overhead. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC16LF1903T-I/SO

PIC16LF1903T-I/SO - 8-bit 20MHz MCU 7KB Flash LCD XLP | Microchip

The Microchip Technology PIC16LF1903T-I/SO is an 8-bit PIC RISC flash microcontroller in the PIC16F family with 7 KB Flash program memory, 256 bytes of RAM, and an integrated LCD segment driver, packaged in a 28-pin SOIC (SO) wide-body gull-wing surface-mount package. It operates from a 2.5 V to 3.6 V supply, runs up to 20 MHz clock speed, exposes 18 I/O ports, and targets low-power nanoWatt XLP applications with extended battery life. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and peripherals. The PIC16LF1903 belongs to Microchip's enhanced mid-range 8-bit core family with 49 instructions and 16 stack levels, sitting within the broader hierarchy of embedded controllers from 8-bit PIC microcontrollers to 32-bit ARM Cortex-M devices. Its on-chip LCD driver, 11-channel 10-bit ADC, internal 16 MHz oscillator, brown-out reset, and integrated temperature indicator reduce external component count for human-interface and battery-powered designs. Key features include 7 KB (4K x 14) Flash with self read/write, 128 B of non-volatile data storage, 72 LCD segment drive support, 25 mA source/sink I/O capability, an 8-bit timer (TMR0), a 16-bit timer (TMR1), and an extended watchdog timer (EWDT). The nanoWatt XLP technology reduces sleep current to support multi-year coin-cell battery operation in metering, remote sensors, and portable medical devices. Typical applications span industrial LCD keypads, battery-backed thermostats, electronic shelf labels, low-cost consumer appliances, and automotive body controllers requiring automotive-grade temperature resilience. The wide 28-SOIC footprint and standard peripherals ease PCB layout reuse across PIC16F/LF product migrations. When designing with this device, choose decoupling capacitors within 5 mm of VDD, leave the MCLR pin pulled high through a 10 kohm resistor for normal operation, and verify the in-circuit serial programming (ICSP) pins remain accessible for production-line firmware updates. Operating temperature is industrial -40 C to +85 C. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing information gain beyond standard supplier listings.

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PIC16LF1904-E/P

PIC16LF1904-E/P - 8-Bit MCU, 7KB Flash, LCD, XLP | Microchip

The Microchip Technology PIC16LF1904-E/P is an 8-bit PIC16 microcontroller in the nanoWatt XLP family, featuring 7KB (4K x 14) of Flash program memory, 256 bytes of RAM, and an integrated LCD driver, housed in a 40-pin PDIP package. It operates from a wide 1.8V to 3.6V supply, supports up to 20 MHz CPU clock, and is designed for ultra-low-power applications with nanoWatt XLP sleep currents in the sub-microamp range. A PIC (Peripheral Interface Controller) microcontroller is a compact RISC-based programmable processor optimized for embedded control. The PIC16LF1904 belongs to the mid-range PIC16 family, sitting between the smaller PIC10/PIC12 and the high-performance PIC18/PIC24. Within the power-management IC hierarchy, this part is a microcontroller (MCU), not a power converter; its nanoWatt XLP technology places it in the ultra-low-power MCU category alongside MSP430 and STM8L competitors. Key features include a 10-bit ADC with up to 14 channels, multiple communication peripherals (I2C, SPI, EUSART), 4 x 8-bit timers plus 1 x 16-bit timer, an integrated LCD driver capable of driving segmented displays with up to 116 segments, and a wide operating temperature range of -40C to +125C. The 'LF' suffix denotes the low-voltage F-version optimized for 1.8V-3.3V operation, while 'E' indicates the extended temperature grade. Architecturally, the PIC16LF1904 uses a 14-bit instruction word RISC core with a hardware stack, shadow register banks for fast context switching, and an internal oscillator that can be tuned in software. The integrated LCD module includes charge-pump voltage generation and configurable segment timing, eliminating the need for an external LCD bias generator. Typical applications include battery-powered metering (gas/water/electric), portable medical devices such as glucose meters, home appliances with LCD displays, sensor node IoT edge devices, and industrial control panels. Its low sleep current also makes it suitable for energy-harvesting applications. When designing with this MCU, place decoupling capacitors (100 nF plus 10 uF bulk) as close as possible to VDD/VSS pins. Configure the LCD charge pump for the lowest acceptable bias voltage to minimize power, and use the deep-sleep modes (doze/idle/sleep) with peripheral disable to maximize battery life. This page synthesizes distributor pricing, drop-in PIC16 family alternatives, and practical design notes not found in the standalone Microchip datasheet.

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PIC16LF1904-E/PT

PIC16LF1904-E/PT - 8-Bit MCU, 7KB Flash, LCD, nanoWatt XLP | Microchip

The Microchip Technology PIC16LF1904-E/PT is an 8-bit PIC16 microcontroller featuring 7KB (4K x 14) of Flash program memory, 256 bytes of SRAM, an integrated LCD driver, and Microchip's nanoWatt XLP (eXtreme Low Power) technology, housed in a 44-pin TQFP (10x10 mm) package. The 'LF' prefix denotes an extended low-voltage core operating from 2.5V to 3.6V, while the 'E' suffix indicates the industrial temperature grade (-40C to +125C). The device runs at up to 20 MHz instruction clock and is built around an enhanced mid-range PIC16 CPU core with hardware multiplier support. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (Flash/ROM), data memory (RAM), and a rich set of peripherals (timers, ADC, communications, I/O). The PIC16LF1904 belongs to the broader taxonomy of 8-bit MCU -> microcontroller -> embedded processor -> semiconductor IC. Its on-chip LCD controller with charge pump simplifies direct-drive segment displays in low-power consumer and industrial products, eliminating an external LCD driver. Key features of the PIC16LF1904 include: 18 general-purpose I/O pins, an integrated LCD driver supporting up to 116 segments, a 10-bit ADC with up to 14 channels, multiple timers (Timer0/1/2), Enhanced Universal Synchronous/Asynchronous Receiver/Transmitter (EUSART), Master I2C/SPI, and nanoWatt XLP sleep current under 30 nA typical. Internal oscillator options up to 16 MHz reduce external component count. Architecturally, the PIC16LF1904 uses an enhanced mid-range 14-bit instruction set with hardware multiply, providing a favorable MIPS-per-mA balance for battery-powered designs. The wide analog and digital peripheral integration allows it to consolidate functions previously requiring multiple ICs. Typical applications include battery-powered LCD meters, thermostats, white-goods user interfaces, medical dosing devices, portable instrumentation, IoT sensor nodes, and remote controls. The on-chip LCD driver is a particularly strong fit for any human-machine interface (HMI) display node. When designing with this part, use the MPLAB X IDE with XC8 compiler; in-circuit debug uses two I/O lines via ICSP. Always include proper decoupling (100 nF + 1 uF) close to VDD pins and follow Microchip AN1267 PCB layout recommendations for the TQFP-44 package. This page synthesizes distributor pricing, drop-in alternatives (same-brand PIC16LF1904 family variants and qualified same-package options), and practical design notes not found in the bare datasheet, helping engineers shorten the BOM-to-prototype cycle.

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PIC16LF1904-I/P

PIC16LF1904-I/P - 8-bit MCU, 7KB Flash, LCD, nanoWatt XLP | Microchip

The Microchip Technology PIC16LF1904-I/P is an 8-bit PIC microcontroller in the PIC16F family featuring 7KB of Flash program memory, 256 bytes of RAM, and an integrated LCD driver, housed in a 40-pin PDIP through-hole package. It operates at up to 20 MHz instruction cycle, targets ultra-low-power applications through the nanoWatt XLP technology platform, and supports an industrial temperature range of -40C to +85C. The LF prefix indicates a wide-voltage 1.8V to 3.6V supply range designed for battery-powered designs. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, optimized for deterministic control and low power consumption in embedded systems. Within the broader taxonomy, the PIC16LF1904 sits at: microcontroller -> 8-bit MCU -> PIC16 family -> PIC16F1xxx enhanced mid-range core -> embedded semiconductor. It competes with other 8-bit low-power MCUs such as the TI MSP430 and Renesas RL78 families, but is differentiated by its integrated segmented LCD driver and the nanoWatt eXtreme Low Power (XLP) sleep currents typically below 50 nA in deep sleep. Key features include 7KB (4K x 14 words) of self-programmable Flash, 256 bytes of SRAM, on-chip segmented LCD driver with up to 116 segments, an enhanced mid-range 8-bit CPU with 49 instructions, multiple power-managed operating modes (Run, Doze, Idle, Sleep), an on-chip 16 MHz internal oscillator, and peripherals including multiple 10-bit ADC channels, comparators, timers, and a configurable logic cell. XLP technology enables typical sleep currents under 50 nA, supporting years-of-battery-life designs such as wireless sensor nodes and metering. The PIC16LF1904 architecture uses Microchip's enhanced mid-range 8-bit RISC core with hardware multiplier and 14-bit instruction word, providing predictable interrupt response, a single-cycle instruction execution model, and deterministic timing that has made PIC MCUs a default choice for cost-sensitive control loops. The integrated LCD segment driver removes the need for an external LCD controller and minimizes BOM cost in HMI panels. Typical applications include battery-powered consumer devices (thermostats, remote controls, smoke detectors), industrial metering and instrumentation with LCD readouts, medical portable monitors, IoT sensor endpoints, and small appliance user interfaces. The on-chip segmented LCD driver makes it particularly suitable for any product that displays numeric or iconographic information on a glass LCD. When designing with this device, ensure the ICSP/ICD pins (RB6/RB7) are accessible for in-circuit programming and debugging using Microchip's MPLAB X IDE and tools such as the MPLAB Snap or PICkit 4. Decoupling caps (100 nF plus 10 uF bulk) should be placed within 5 mm of VDD/VSS pins, and the internal oscillator should be calibrated using the OSCTUNE register to compensate across temperature. This page synthesizes distributor pricing snapshots, drop-in alternative cross-references, and practical PCB-level design notes for the PIC16LF1904-I/P, complementing (not duplicating) the manufacturer datasheet with engineer-facing selection and replacement guidance.

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PIC16LF1904T-I/MV

PIC16LF1904T-I/MV - 7KB Flash 8-bit LCD MCU | Microchip

The Microchip Technology PIC16LF1904T-I/MV is an 8-bit flash-based microcontroller with nanoWatt eXtreme Low Power (XLP) technology, 7KB (4K x 14) of program flash, and 256 bytes of RAM, housed in a 40-pin UQFN (MV) 5x5 mm package. It supports an internal 16 MHz oscillator, runs up to 20 MHz instruction rate, and operates across 1.8 V to 3.6 V with the "LF" low-voltage silicon. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals (timers, ADC, communications), and I/O on one package. The PIC16F1904 belongs to Microchip's PIC16F mid-range 8-bit family, which sits in the hierarchy: 8-bit PIC -> microcontroller -> embedded controller -> semiconductor IC. LCD driver support, an integrated voltage reference, and nanoWatt XLP sleep modes make this family popular for battery-powered human-machine interface products. Key features include 72 LCD segment drive support for direct glass drive, 11 channels of 10-bit ADC with internal voltage reference, one 8-bit timer (TMR0), one 16-bit timer (TMR1), an extended watchdog timer (EWDT), an integrated temperature indicator, EUSART with 25 mA source/sink I/O, brown-out reset (BOR), and in-circuit serial programming (ICSP). The 40-pin UQFN package delivers the largest pin count in the PIC16F190x sub-family while keeping the board footprint at only 5x5 mm. Typical applications include low-power consumer appliances with LCD front panels, battery-operated medical monitors, industrial sensor transmitters, IoT edge nodes, and metering equipment. The "LF" low-voltage variant combined with XLP technology enables sleep currents in the nanoampere range, extending battery life across multi-year deployments. When designing with this device, follow Microchip's MPLAB X IDE configuration bits for the oscillator and watchdog before programming the application. The temperature indicator requires ADC calibration against the internal bandgap for accurate readings, and the LCD charge pump can be bypassed when an external bias voltage is already present.

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PIC16LF1906-E/SO

PIC16LF1906-E/SO - 14KB Flash 8-bit MCU w/ LCD & nanoWatt XLP | Microchip

The Microchip Technology PIC16LF1906-E/SO is a low-power 8-bit CMOS Flash microcontroller built on an enhanced mid-range RISC core, offering 14 KB of self-programmable Flash program memory, 512 bytes of RAM, and 256 bytes of EEPROM, all integrated in a 28-pin SOIC (SO) wide-body package. The LF prefix indicates a wide Vdd operating range of 1.8 V to 3.4 V (with extended operating down to 1.8 V on F-version parts), making this part an excellent match for 2.5 V/3.3 V battery-powered applications, while still delivering up to 8 MIPS instruction throughput at 8 MHz. What is a low-power 8-bit Flash microcontroller? An MCU (microcontroller unit) integrates a CPU, non-volatile program memory, working RAM, data EEPROM, and a rich peripheral set on a single chip. The PIC16LF1906 sits in the PIC16 mid-range family (8-bit -> PIC MCU -> microcontroller -> embedded computing) and adds the nanoWatt XLP (eXtreme Low Power) feature set, which provides Sleep currents below 1 uA, deep Sleep modes with RAM retention, and peripheral activity monitors that wake the CPU on real events rather than on timers. Key differentiating features of the PIC16LF1906 include a 14 KB Flash / 512 B RAM / 256 B EEPROM memory combination, a dedicated LCD driver with charge pump capable of driving up to a 4x17 segment display, a 10-bit ADC with up to 14 channels, multiple Enhanced USART, MSSP (SPI/I2C) peripherals, and a 16-bit timer plus 8-bit timers for event capture and PWM generation. The integrated LCD charge pump eliminates external bias resistors and operates even from low supply voltages. Typical applications include battery-powered metering with on-glass LCD readout (gas/water/heat meters), portable medical monitoring devices such as glucose meters and pulse oximeters, IoT sensor nodes requiring multi-year battery life, consumer remote controls, small appliances with integrated display, and HVAC thermostat front-ends. The combination of nanoWatt XLP Sleep currents in the sub-microamp range and a built-in LCD driver lets the same MCU drive the display and run the application with no auxiliary display IC. When designing with this part, reserve the ICD/ICSP pins (RB6/RB7) for in-circuit programming and debugging using a PICkit, MPLAB Snap, or ICD debugger; do not assign them as general-purpose I/O on production boards. Add a 100 nF decoupling cap directly on Vdd/Vss and a bulk cap near the regulator, and follow Microchip application notes for the LCD charge-pump capacitor selection. Pin count is 28 in the SO package (SO-300 mil wide body); an SP (SPDIP) and SS (SSOP) variant are available for breadboarding and high-density respectively. This page synthesizes drop-in alternatives, side-by-side parametric comparisons, and design notes not found in the manufacturer datasheet alone, to help engineers and buyers move from part selection to prototype quickly.

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PIC16LF1906-E/SS

PIC16LF1906-E/SS - 14KB Flash, LCD, XLP 8-bit MCU | Microchip

The Microchip Technology PIC16LF1906-E/SS is a 28-pin SSOP-packaged 8-bit RISC Flash microcontroller from the PIC16LF1904/6/7 family, integrating 14KB of Flash program memory, 512 bytes of SRAM, 256 bytes of EEPROM, an integrated LCD driver with up to 96 segments, and nanoWatt XLP ultra-low-power technology. It operates across a wide 1.8V to 3.6V supply range, delivers up to 20 MHz CPU performance through a 2-cycle internal oscillator or external crystal, and ships with 11-channel 10-bit ADC plus the usual PIC16 peripherals (EUSART, MSSP/SPI/I2C, timers, comparators). The "LF" prefix denotes the low-voltage / low-power variant; the "E" suffix indicates the extended (-40C to +125C) operating temperature grade, and the "SS" package code identifies the 28-pin 5.30 mm body SSOP form factor. An 8-bit PIC16 microcontroller is a Harvard-architecture CMOS MCU built around a small, deterministic instruction set optimized for embedded control loops, sensor reading, and human-interface driving. The PIC16LF1906 sits in the mid-range enhanced core (PIC16E) family, sharing its instruction set and development environment (MPLAB X + XC8) with hundreds of siblings, and adding on-chip LCD segment drive, nanoWatt XLP sleep modes that drop current into the nanoampere range, and a CTMU touch-interface block. Within the broader semiconductor taxonomy it belongs to microcontrollers -> 8-bit MCUs -> Flash-based MCUs -> low-power MCUs -> LCD-segment-driver MCUs. Key features that distinguish the PIC16LF1906-E/SS include on-chip LCD segment driver (up to 96 segments with software-controlled contrast), eXtreme Low-Power (XLP) nanoWatt sleep at <100 nA typical, 11-channel 10-bit ADC with internal voltage reference, mTouch capacitive-touch capability via the Charge Time Measurement Unit (CTMU), a 32 kHz internal oscillator plus 16 MHz HFINTOSC with PLL, and two 8-bit timers plus one 16-bit timer. The 28-pin SSOP package offers excellent thermal performance for surface-mount manufacturing and is the second-most-popular narrow-body SMD MCU footprint, after SOIC-28. Typical applications include battery-powered metering (gas/water/electricity) with on-glass LCD, consumer remote controls, home-automation sensor hubs, industrial sensor transmitters with LCD display, medical dosing pumps, and any cost-sensitive portable product needing on-board LCD. Design considerations for the PIC16LF1906-E/SS include selecting the correct LCD bias resistor ladder for the chosen glass, ensuring VDD stability during PLL transitions, and configuring the PPS (Peripheral Pin Select) for EUSART/MSSP routing on the 28-pin variant. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes that supplement the manufacturer datasheet.

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PIC16LF1906-E/SO - 14KB Flash 8-bit MCU w/ LCD & nanoWatt XLP | Microchip

PIC16LF1906-E/SS - 14KB Flash, LCD, XLP 8-bit MCU | Microchip