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PIC16LF1938T-I/MV - 28KB Flash LCD 8-bit MCU | Microchip
PIC16LF1938T-I/MV

PIC16LF1938T-I/MV - 28KB Flash LCD 8-bit MCU | Microchip

The Microchip Technology PIC16LF1938T-I/MV is an 8-bit PIC microcontroller from the PIC16F1938 family with 28KB Flash program memory, 1024 bytes RAM, and 256 bytes EEPROM, packaged in a 28-pin UQFN (4x4 mm) form factor. It operates at 32 MHz maximum clock and integrates an LCD driver alongside the nanoWatt XLP extreme low-power technology. The 'LF' prefix denotes the wide-voltage 1.8V-3.6V operating range suited to battery-powered systems, while the 'T' suffix indicates tape-and-reel packaging. A PIC microcontroller is a RISC-based Harvard-architecture 8-bit MCU widely used in embedded control. PIC MCUs sit within the broader semiconductor hierarchy as microcontroller -> embedded processor -> integrated circuit. The PIC16F1938 family is part of Microchip's mid-range enhanced core lineup, offering more peripherals and code density than baseline PIC10/12/16 devices while remaining simpler than the PIC18 or dsPIC families. Key features of the PIC16LF1938T-I/MV include a 32 MHz internal oscillator with PLL, 14-channel 10-bit ADC, multiple communication peripherals (I2C, SPI, EUSART), and an integrated LCD driver supporting up to 128 segments. The nanoWatt XLP technology provides sleep currents below 1 uA, making the part suitable for battery-powered or energy-harvesting applications. Enhanced peripherals include complementary waveform generators, configurable logic cells, and a numerically controlled oscillator. The device architecture combines a 16-bit instruction word with separate data and program buses, supporting 49 instructions in the enhanced mid-range core. Peripherals are interconnected through Microchip's Peripheral Pin Select (PPS) system, allowing flexible pin mapping. The 10-bit ADC achieves up to 100 ksps with acquisition time configurable via software. Typical applications include consumer appliance control panels with LCD displays, battery-powered IoT sensor nodes, medical devices such as glucose meters, automotive body controllers (non-safety), industrial HMI panels, and portable instrumentation. The integrated LCD driver eliminates the need for an external display controller. When designing with the PIC16LF1938T-I/MV, ensure decoupling capacitors are placed within 5 mm of the VDD pin and consider the exposed thermal pad on the UQFN package for improved thermal performance. Programming uses Microchip's MPLAB X IDE with the XC8 compiler, and debugging via ICD or PKOB programmer tools. This page synthesizes distributor inventory, drop-in same-family alternatives, and practical design notes not found in the standalone manufacturer datasheet, providing information gain beyond distributor catalog listings.

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PIC16LF1938T-I/SO - 8-bit 32MHz XLP MCU 28KB Flash | Microchip
PIC16LF1938T-I/SO

PIC16LF1938T-I/SO - 8-bit 32MHz XLP MCU 28KB Flash | Microchip

The Microchip Technology PIC16LF1938T-I/SO is an 8-bit PIC® XLP™ flash microcontroller running at 32 MHz with 28 KB of program memory (16K x 14 words), 1 KB of RAM, and 256 bytes of EEPROM, packaged in a 28-pin SOIC (SO) for surface-mount assembly. Operating from 1.8 V to 5.5 V, the 'LF' silicon supports the full 1.8-5.5 V range while the non-LF PIC16F1938 variant operates only down to 2.3 V, giving the LF grade a meaningful advantage for 2-cell battery and energy-harvesting designs. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory (Flash/ROM), volatile data memory (RAM), EEPROM, and a rich set of peripherals such as timers, ADC, PWM, communication interfaces (UART/SPI/I2C), and I/O. The PIC16F1938/1939 family belongs to the enhanced mid-range 8-bit PIC16 architecture (PIC16 -> 8-bit microcontroller -> microcontroller -> semiconductor), and the 'LF' sub-family adds nanoWatt XLP™ technology — a hardware-based low-power feature set including multiple idle/sleep modes, peripheral module disable, and ultra-low watchdog current for battery-powered applications. Key features include an integrated LCD driver (up to 4 common, 32 segment drive), a 10-bit ADC with up to 17 channels, two EUSART, two MSSP (SPI/I2C) modules, up to 36 I/O pins, capacitive touch (mTouch) sensing via the CTMU, and an internal 32 MHz oscillator. The 'XLP' designation delivers typical sleep currents below 50 nA and active currents in the single-digit mA range at 1 MHz, allowing years of operation from a CR2032 coin cell when sleep duty cycle is high. The LF1938 series is built on a 0.18 µm process with a 14-bit instruction word and 8-bit data path. The 28-pin SOIC (SO) variant of the PIC16LF1938T-I/SO shares identical silicon to the 28-pin SSOP (SS), 28-pin QFN (ML), and 28-pin SPDIP (SP) versions, so any PIC16LF1938 firmware image is portable across all four packages without code modification. Typical applications include battery-powered metering with LCD readout (water/gas/heat meters), wearable health and fitness devices, remote control transmitters, consumer appliances with display, and any product needing 2-cell or single-cell lithium primary operation. Choose the 'LF' sub-family specifically when the design must run below 2.5 V. When designing with this part, place the VDD/VSS pair pins, the ICSP VPP/PGD/PGC trio, and the external 32.768 kHz crystal (if used for RTCC) per the datasheet reference layout. Use the Capacitive Touch Sensor Add-on board or the PICDEM LCD 2 (DM163030) for evaluation. This page synthesizes distributor pricing, drop-in alternative inventory from Microchip's own PIC16LF193x family, and design notes that go beyond what is in the datasheet alone.

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PIC16LF1939-E/ML - 8-bit 32MHz 28KB Flash MCU 44-QFN | Microchip
PIC16LF1939-E/ML

PIC16LF1939-E/ML - 8-bit 32MHz 28KB Flash MCU 44-QFN | Microchip

The Microchip Technology PIC16LF1939-E/ML is an 8-bit CMOS microcontroller from the PIC® XLP™ 16F family featuring 28KB Flash program memory, 32MHz CPU speed, and an integrated LCD driver in a 44-pin QFN (8x8 mm) package. Operating from 2.3V to 3.6V with 36 I/O pins, the device is optimized for ultra-low-power (nanoWatt XLP) embedded designs. A microcontroller (MCU) is a single-chip computer containing a CPU core, Flash program memory, SRAM, and programmable peripherals. Within the broader taxonomy, MCUs sit between microprocessors and digital signal processors (DSPs): microprocessors need external memory, microcontrollers integrate it, while DSPs specialize in numeric computation. The PIC16LF1939 belongs to the 8-bit RISC class, offering deterministic instruction execution ideal for real-time control loops, sensor reading, and human-machine interfaces. Key features include 28KB (16K x 14) Flash program memory, 1KB RAM, 256B EEPROM, hardware LCD driver supporting up to 192 segments, nanoWatt XLP technology for sub-microamp sleep currents, and an Enhanced Mid-Range core with 49 instructions and 16-level hardware stack. The 36 I/O pins support capacitive touch via mTouch, multiple serial interfaces (EUSART, MSSP SPI/I2C), 10-bit ADC, and 5-bit DAC. The 44-QFN package provides a compact 8x8 mm footprint suitable for space-constrained designs. Internally, the PIC16LF1939 uses a Harvard architecture with separate program and data buses, enabling single-cycle instruction fetch except for branches. The integrated LCD driver includes charge pump and contrast control, eliminating external LCD bias circuitry. XLP technology combines multiple sleep modes (doze, idle, sleep) with peripheral clock gating, enabling years of operation from a single coin cell when duty-cycled appropriately. Typical applications include handheld battery-powered instruments with LCD displays, IoT sensor nodes, electronic shelf labels, home appliances with segment displays, automotive climate/HVAC control modules, and industrial panel meters. The wide -40C to +125C operating range (E temperature grade) also supports harsh-environment deployments. When designing with this device, ensure that VDD decoupling follows Microchip's recommended 100nF + 10uF pattern placed within 5mm of the supply pins. For LCD applications, allocate backup segment pins for bias resistor networks and confirm charge pump capacitor values against the segment count datasheet table. This page synthesizes distributor pricing, parametric comparison with drop-in alternatives, and practical design notes not found in the standalone datasheet, helping engineers select between the -E (extended temperature) and -I (industrial) suffixes and across the PIC16LF193x family variants.

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PIC16LF1939-E/MV - 28KB Flash 8-bit MCU w/ LCD | Microchip
PIC16LF1939-E/MV

PIC16LF1939-E/MV - 28KB Flash 8-bit MCU w/ LCD | Microchip

The Microchip Technology PIC16LF1939-E/MV is an 8-bit CMOS flash microcontroller from the PIC16F/LF193x family, offering 28 KB of Flash program memory, 1 KB of RAM and 256 bytes of EEPROM in a 40-pin UQFN (5x5 mm) package with exposed pad. It operates from 1.8 V to 5.5 V, runs at up to 32 MHz CPU clock, and integrates an on-chip LCD driver supporting up to 192 segments with charge pump, plus nanoWatt XLP ultra-low-power technology. The 'LF' prefix indicates the wide-voltage, low-power variant; the 'E' suffix denotes the -40C to +125C extended industrial temperature grade. An 8-bit PIC microcontroller is a Harvard-architecture RISC device optimized for deterministic, low-power embedded control. Within the broader taxonomy, the PIC16LF1939 belongs to the enhanced mid-range (XLP) family of microcontrollers, which sits between the baseline PIC10/12/16 family and the high-performance PIC18/DSPIC families. Compared with ARM Cortex-M parts, PIC16F/LF193x devices trade raw MIPS for simpler peripheral integration, lower power, and a smaller code footprint, making them a preferred choice in cost- and battery-sensitive designs. Key features of this variant include the integrated segmented LCD driver with variable bias, the mTouch capacitive touch sensing peripheral, multiple Enhanced USART, MSSP (SPI/I2C) ports, 10-bit ADC with computation, and the nanoWatt XLP sleep currents in the nA range. The 'MV' suffix designates the 40-pin UQFN (5x5) package, which is pin-compatible with the PIC16LF1938 and PIC16LF1937 variants in the same UQFN-40 land pattern. Architecturally, the device uses a 14-bit instruction word with a 200 ns minimum instruction cycle at 32 MHz, an 8-level hardware stack, and a 32 kHz internal oscillator option for low-power operation. The LCD peripheral with integrated charge pump allows direct glass connection without external voltage rails, simplifying BOM for metering and appliance HMIs. Typical applications include battery-powered consumer devices, low-cost white goods with LCD HMIs, IoT sensor nodes with segment displays, automotive body controllers (sub-systems), metering, and any cost-driven embedded design that needs on-chip segmented LCD without an external driver. The 40-UQFN package suits space-constrained boards. Design consideration: choose this part when the 28 KB Flash budget is sufficient and a 192-segment LCD is needed on the same silicon as the MCU. If more Flash or USB is required, move up to PIC18F or DSPIC33 families. Verify pinout against the 40-UQFN (MV) land pattern - the related PIC16LF1938 (28 KB) and PIC16LF1936 (28 KB) variants share the same package. This page synthesizes verified distributor pricing, drop-in same-package alternatives, and practical design notes that go beyond what is printed on the manufacturer datasheet alone.

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PIC16LF1939-E/P - 28KB Flash 8-bit MCU w/ LCD & XLP | Microchip
PIC16LF1939-E/P

PIC16LF1939-E/P - 28KB Flash 8-bit MCU w/ LCD & XLP | Microchip

The Microchip Technology PIC16LF1939-E/P is a 40-pin PDIP 8-bit CMOS flash microcontroller from the PIC® XLP™ 16F family, delivering 32 MHz CPU performance with up to 28 KB (16K x 14) of self-programmable flash program memory. The LF silicon operates from a wide 1.8 V to 5.5 V supply (with a 2.3 V to 3.6 V typical datasheet specification), targeting ultra-low-power (nanoWatt XLP) designs with integrated LCD segment driver support. An 8-bit microcontroller (MCU) is a compact processor core integrated with program memory, RAM, data EEPROM, and programmable peripherals on a single die. The PIC16LF1939 belongs to Microchip's enhanced mid-range PIC16 family, which adds a hardware 16-level stack, 49 instructions, and 200 ns instruction execution. Within the broader hierarchy, it sits at: PIC16 → 8-bit MCU → microcontroller → embedded processor → semiconductor. Its on-chip peripherals include a 36-I/O port set, up to 17 ADC channels (10-bit), multiple timers, EUSART, MSSP (I²C/SPI), and a charge-pump LCD driver — making it a true system-on-chip for human-machine-interface designs. Key specifications include 1 KB RAM, 256 bytes of data EEPROM, internal 32 kHz to 32 MHz oscillator with PLL, nanoWatt XLP sleep current below 1 µA, an integrated LCD driver capable of up to 248 segments, and an extended operating temperature range of -40 °C to +125 °C. The 'E' temperature grade and 40-pin PDIP through-hole package (suffix /P) simplify prototyping and breadboarding. The 'LF' prefix denotes the low-voltage silicon revision. Architecturally, the part uses a RISC Harvard-bus design with separate program and data paths, allowing instruction fetch and operand access in a single cycle. The 10-bit ADC with acquisition timer, complementary waveform generator, and configurable logic cell expand its applicability to mixed-signal sensor and motor-control boards. The XLP technology combines deep sleep, RTC, and WDT with selective peripheral clock gating to extend battery life. Typical applications include thermostats and white-goods HMIs with LCD readout, battery-powered sensor nodes with segment displays, industrial counters and timers, automotive dashboard clusters (extended temperature grade), medical infusion pumps with LCD user interface, and consumer appliances requiring capacitive-touch or segment-LCD indication. Designers value the part for its ability to drive a glass LCD directly, eliminating an external segment driver and reducing BOM cost. When designing with this device, allocate at least 4.0 V VDD for full 32 MHz operation; drop to lower frequencies for low-voltage battery scenarios. The LCD charge pump requires external capacitors on VLCD pins — do not omit them. Always configure the PPS (Peripheral Pin Select) module before enabling EUSART or MSSP to prevent bus contention during startup. This page synthesizes distributor pricing, drop-in alternatives drawn from the same PIC16LF193x family, and practical design notes not found in the manufacturer datasheet — giving engineers and procurement teams a single decision-ready reference.

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PIC16LF1939-E/PT - 28KB Flash 8-bit MCU with LCD, 36 I/O, TQFP-44 | Microchip
PIC16LF1939-E/PT

PIC16LF1939-E/PT - 28KB Flash 8-bit MCU with LCD, 36 I/O, TQFP-44 | Microchip

The Microchip PIC16LF1939-E/PT is an 8-bit CMOS flash-based microcontroller in the PIC16F/LF193x/194x family featuring nanoWatt XLP extreme-low-power technology, 28KB of program Flash, 1KB of SRAM, 256 bytes of EEPROM, and an integrated LCD driver. It operates at up to 32 MHz (8 MHz instruction execution with 4x PLL), is specified for an extended industrial temperature range of -40C to +125C, and supports 1.8V to 3.6V supply on the LF (low-voltage) variant. The TQFP-44 package (PT suffix) exposes 36 digital I/O pins, 14-channel 10-bit ADC, 5-bit DAC, multiple timers, EUSART, MSSP (SPI/I2C), and an on-chip LCD driver with charge pump. An 8-bit MCU is a microcontroller built around an 8-bit data path and Harvard RISC core, suitable for cost-sensitive embedded designs requiring deterministic real-time control, low power consumption, and straightforward peripheral integration. The PIC16 family sits in Microchip's mid-range tier and has become a standard platform for industrial control, consumer electronics, and human-machine interface (HMI) products with display support. The LF1939 specifically adds the XLP nanoWatt sleep current family characteristic (sub-uA typical standby) and an integrated segmented LCD controller, eliminating the need for an external driver chip in battery-powered metering and appliance applications. Key differentiating specifications include the integrated LCD driver supporting up to 248 segments (depending on package), 36 general-purpose I/O lines, hardware 8x8 multiplier, 32 kHz internal oscillator with PLL for 32 MHz operation, and 2 capture/compare/PWM modules with enhanced PWM. The device also features an ICD/ICSP debug interface, two comparators, and a configurable logic cell (CLC) peripheral for glue-logic consolidation. Architecture-wise, the PIC16LF1939 uses a 14-bit instruction word, 16-level hardware stack, and 49 instruction set with single-cycle execution at 32 MHz, delivering 8 MIPS throughput. The wide operating voltage (1.8V-3.6V), seven power-managed operating modes (run, idle, sleep, deep sleep, etc.), and on-chip temperature indicator make it well-suited for battery-powered metering such as thermometers, CO detectors, and HVAC thermostats, as well as industrial sensor transmitters and wearable medical devices. Typical applications include smart thermostats, blood glucose meters, irrigation controllers, digital weigh scales, e-bike instrumentation, utility metering, and any product requiring a low-power segmented LCD UI. Compared with discrete MCU + external LCD driver designs, the PIC16LF1939 reduces BOM cost and PCB area. When designing with this part, ensure the LF vs F variant selection is made at the BOM level - the LF part supports 1.8V minimum and is required for sub-3V coin-cell applications. Decoupling follows the standard 100nF + bulk capacitor pattern at VDD/VSS, and unused LCD segment pins should be configured as digital outputs to minimize leakage in sleep. This page synthesizes distributor pricing, verified drop-in alternatives sourced from Microchip's same-family parametric searches, and practical design notes not found in the manufacturer datasheet summary.

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PIC16LF1939-I/ML - 28KB Flash XLP 8-bit MCU 44-VQFN | Microchip
PIC16LF1939-I/ML

PIC16LF1939-I/ML - 28KB Flash XLP 8-bit MCU 44-VQFN | Microchip

The Microchip Technology PIC16LF1939-I/ML is a 28 KB Flash, 8-bit PIC microcontroller from the PIC16F193x family in a 44-pin VQFN (8x8 mm) package with exposed thermal pad, operating from 1.8 V to 5.5 V with XLP (eXtreme Low Power) technology. The core is an 8-bit RISC CPU with 32 MHz internal oscillator (8 MIPS), 1 KB SRAM, 256 B EEPROM, 28 KB Flash (16K x 14) and an integrated segmented LCD driver supporting up to 192 segments. What is an 8-bit microcontroller? An 8-bit microcontroller (MCU) is a single-chip computer that processes data 8 bits at a time, integrating CPU, Flash program memory, SRAM, EEPROM, and peripherals on one die. Within the embedded hierarchy, the PIC16F193x family sits between simple 8-bit PIC10/PIC12 devices and 16-bit dsPIC/PIC24 parts, targeting ultra-low-power human-interface products with LCD, touch and analog-mixing requirements. The device integrates the nanoWatt XLP feature set, including Deep Sleep mode with current as low as 20 nA typical, an LCD charge pump, multiple 8-bit and 5-bit DACs, 9-bit DAC, multiple comparators, a 12-bit ADC with computation, and two Capture/Compare/PWM modules. The 44-pin VQFN package exposes a thermal pad that must be soldered to the ground plane for thermal relief and to meet the 9 mA sourcing/sinking capability on port pins. In the PIC16F193x architecture, the CPU executes one instruction per four clock cycles, yielding 8 MIPS at 32 MHz. Internal voltage reference, fixed-voltage reference and a 32 kHz LFINTOSC source combine with system clock gating to deliver typical Run currents of 110 uA/MHz and idle currents below 1 uA - critical for battery-powered metering and wearable applications. Typical applications include battery-powered utility meters with LCD, e-paper / segment LCD thermostats, sensor hub IoT nodes, low-cost home automation keypads, industrial process displays, and medical handheld instruments. The on-chip LCD driver eliminates an external charge pump ASIC and reduces BOM for HMI designs. When laying out the PCB, tie the exposed pad (EP) directly to the ground plane with multiple thermal vias to keep junction temperature below 150 C; failure to solder the EP can degrade I/O drive strength and thermal performance. Always use 1.8 V minimum on VDD when relying on the LCD charge-pump output for contrast bias. This page synthesizes distributor pricing, same-family drop-in alternatives in the 44-VQFN footprint, and practical design notes not found in the manufacturer datasheet - including EP soldering guidance and Deep Sleep current measurements.

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PIC16LF1939-I/P - 8-bit XLP MCU, 28KB Flash, 40-PDIP | Microchip
PIC16LF1939-I/P

PIC16LF1939-I/P - 8-bit XLP MCU, 28KB Flash, 40-PDIP | Microchip

The Microchip Technology PIC16LF1939-I/P is an 8-bit PIC® XLP™ 16F family flash microcontroller IC running at up to 32MHz with 28KB (16K x 14) of on-chip program flash and 1KB of data RAM, housed in a through-hole 40-pin PDIP package. It is the low-power (LF) variant of the PIC16F1939 with a 1.8V to 3.6V operating supply range and 36 digital I/O pins, and integrates a 10-bit ADC, multiple timers, and on-chip EEPROM. According to the Microchip PIC16F1939 datasheet (DS40001714), the PIC16F/LF193x family is built on an enhanced mid-range PIC16 core with 200 ns instruction execution. A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, volatile data memory, and peripheral interfaces on one die. The PIC16LF1939 sits inside the broader hierarchy: 8-bit MCU -> PIC16 family -> enhanced mid-range core -> eXtreme Low Power (XLP) sub-line -> flash-based microcontroller. The XLP designation indicates Microchip's low-power technology aimed at battery-powered and energy-harvesting applications where nanoWatt sleep currents and active-mode efficiency extend operating life. Understanding this hierarchy helps engineers map the device onto system-level power budgets and peripheral requirements. Key features include 28KB self-programmable flash with 10,000 erase/write cycles, 256B of EEPROM with 1,000,000 erase/write cycles, an internal 16MHz oscillator, and a wide operating temperature range of -40C to +85C for the industrial-grade 'I' suffix. The device also offers a 10-bit ADC with up to 14 channels, multiple capture/compare/PWM modules, a master synchronous serial port (MSSP) for SPI/I2C, an enhanced USART, and nanoWatt XLP technology with multiple low-power sleep modes for battery applications. The 40-pin PDIP package is through-hole, easing breadboard and hand-soldering use in development and prototyping. Technically, the PIC16LF1939 employs a Harvard architecture with separate program and data buses, a 14-bit instruction word, and a hardware stack. Its XLP technology provides sleep currents measured in nanoamperes with retention and wake-on-change, which is critical for remote sensor nodes and IoT endpoints that spend most of their life in sleep. The internal 16MHz oscillator eliminates one external component, and configurable oscillator modes (HF, XT, LF, RC, EC) let the developer trade frequency for current across the 32MHz maximum. Typical applications include battery-powered sensor nodes, low-power IoT endpoints, industrial control panels, white goods and HVAC user interfaces, LED lighting controllers, and educational/development boards. The LF voltage range and XLP sleep currents make it a strong fit where energy budget is tight but 8-bit cost targets are mandatory. The 40-PDIP package also makes it ideal for hobbyists, training kits, and through-hole prototyping where surface-mount QFP variants are impractical. When designing with the PIC16LF1939, note that the LF suffix limits VDD to 3.6V maximum. If your application runs from a 5V rail, use the PIC16F1939 (F variant, 1.8V-5.5V) instead - it is pin-to-pin compatible within the same package family. Decoupling VDD/VSS with at least one 100nF ceramic per supply pin placed within 5 mm of the package is mandatory to keep the ADC accurate and to suppress switching noise. This page synthesizes distributor pricing as of 2026-09-25, drop-in PDIP-40 alternatives, and practical design notes not found in the manufacturer datasheet - giving engineers a single consolidated reference for sourcing, replacement, and design-in decisions.

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PIC16LF1939-I/PT - 8-bit XLP MCU 28KB Flash 44-TQFP | Microchip
PIC16LF1939-I/PT

PIC16LF1939-I/PT - 8-bit XLP MCU 28KB Flash 44-TQFP | Microchip

The Microchip Technology PIC16LF1939-I/PT is an 8-bit PIC16 family CMOS microcontroller built on the enhanced mid-range PIC® RISC core, delivering 28KB (16K x 14 words) of Flash program memory, 1KB RAM and 256B EEPROM in a 44-pin TQFP (10x10) package. It operates from a 1.8V to 3.6V supply (F-version variants cover 1.8-5.5V), runs at up to 32MHz internal clock, and offers 36 digital I/O pins plus an integrated LCD driver, making it a single-chip solution for human-machine-interface designs. A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, working RAM, peripheral set and I/O. Within the broader taxonomy, an 8-bit MCU is the entry-level tier optimized for low cost, deterministic real-time response and ultra-low standby power. The PIC16LF1939 sits in Microchip's XLP (eXtreme Low Power) nanoWatt family, whose peers include the PIC16F193x/194x line-up; these parts target battery-powered and always-on applications where a few microamps of sleep current dominate battery life calculations. Key features include a 32MHz internal oscillator with 4x PLL option, 14-channel 10-bit ADC, multiple Enhanced USART, MSSP (SPI/I²C) ports, 5 CCP/ECCP modules, two comparators, an 8-bit/5-bit DAC and hardware mTouch capacitive sensing support. The integrated LCD controller can drive up to 184 segments directly, eliminating the need for an external display driver IC in meter, appliance and industrial-control panels. The LF variant's nanoWatt XLP technology delivers typical sleep currents below 50 nA with RTC active and watch-dog timer off, plus a 1.8V minimum VDD that lets designers run directly from a single alkaline or two AA cells without a boost regulator. The wide operating range (industrial -40°C to +85°C for the I-suffix) and broad peripheral integration lower BOM cost by replacing external ADC, RTC and LCD-driver chips. Typical applications include battery-powered utility meters, white-goods user interfaces, home appliances with segment LCDs, sensor hubs with mTouch buttons, industrial control keypads, and low-end IoT edge nodes with UART/SPI peripherals. The integrated ADC plus DAC plus comparator set also makes the part a useful analogue front-end for thermostat loops and process-control sub-systems. When designing, plan the VDD decoupling network with a 100nF ceramic close to each power pin plus a bulk 10µF tantalum or ceramic; route the ICPGC/ICSPC ICSP™ clock and data lines with short, parallel traces to a 6-pin header to retain in-circuit debug and device programming access on the production board. This page synthesises distributor pricing tiers, AEO-optimised answers to common engineering questions, and a curated list of pin-compatible drop-in alternatives that go beyond the bare datasheet lookup. Where distributor data disagrees on a value, the manufacturer's datasheet is cited as the authoritative source.

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PIC16LF1939T-I/ML - 28KB Flash 8-bit MCU, 44-QFN | Microchip
PIC16LF1939T-I/ML

PIC16LF1939T-I/ML - 28KB Flash 8-bit MCU, 44-QFN | Microchip

The Microchip Technology PIC16LF1939T-I/ML is an 8-bit PIC microcontroller from the PIC® XLP™ 16F family, featuring 28 KB (16K x 14) of Flash program memory, 1 KB of RAM, and 256 bytes of EEPROM in a 44-pin QFN (8x8 mm) package with exposed thermal pad. It operates up to 32 MHz from a 1.8 V to 5.5 V supply and provides 36 I/O pins with a 10-bit ADC, making it suitable for low-power and battery-driven embedded designs. A PIC microcontroller is a compact, programmable computing core built around a Harvard RISC architecture that integrates flash memory, RAM, EEPROM, peripherals, and I/O into a single chip. PIC16F-series MCUs sit in the low-end 8-bit tier of the PIC family tree (PIC10/12/16/18/24/32), balancing code density, peripheral integration, and extreme-low-power (XLP) operation, and are commonly used where cost, deterministic timing, and small footprint matter more than raw throughput. Key features include nanoWatt XLP technology for sub-µA sleep currents, an on-chip 32 kHz oscillator, internal voltage reference, capacitive touch support via the mTouch® peripheral, and up to 36 general-purpose I/O. The device also integrates a Liquid Crystal Display (LCD) driver, multiple timers, enhanced USART, MSSP for SPI/I2C, and 10-bit ADC with up to 14 channels depending on package. The PIC16LF1939T-I/ML targets designs that need LCD-driving capability in a compact 44-QFN footprint, such as thermostats, metering, consumer appliances, and human-machine interface panels. Its XLP nanoWatt technology enables battery lifetimes of years on a single cell when the MCU spends most of its time in sleep or doze modes. When designing, ensure the exposed pad of the QFN package is soldered to a sufficiently large copper pour for thermal dissipation and electrical grounding; an unsoldered thermal pad degrades thermal performance and can cause intermittent failures. The 'T' suffix indicates Tape-and-Reel packaging for high-volume SMT assembly.

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PIC16LF1939T-I/PT - 28KB Flash XLP 8-bit MCU 44-TQFP | Microchip
PIC16LF1939T-I/PT

PIC16LF1939T-I/PT - 28KB Flash XLP 8-bit MCU 44-TQFP | Microchip

The Microchip PIC16LF1939T-I/PT is an 8-bit PIC16 microcontroller from the eXtreme Low Power (XLP) family, featuring 28KB (16K x 14 words) of Flash program memory, 1KB of RAM, and 256 bytes of EEPROM, all integrated into a 44-pin TQFP (10x10 mm) package. It runs at up to 32 MHz, supports 1.8V to 5.5V wide operating voltage, and delivers 36 I/O pins with a 10-bit ADC and multiple on-chip peripherals for embedded applications. What is a microcontroller (MCU)? A microcontroller is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), data memory (RAM), non-volatile storage (EEPROM), and a rich set of peripherals such as timers, ADC/DAC, communication interfaces (UART, SPI, I2C), and GPIO onto one die. The PIC16LF1939 belongs to the PIC16 family of 8-bit microcontrollers, which sit within Microchip's 8-bit MCU portfolio alongside PIC10/12/14/18 families, and ultimately within the broader microcontroller -> embedded IC -> semiconductor hierarchy. The XLP designation indicates an ultra-low-power architecture optimized for battery-powered and energy-harvesting designs. Key features include up to 32 MHz internal oscillator, 10-bit ADC with multiple channels, hardware capacitive touch sensing (mTouch) via the on-chip Charge Time Measurement Unit (CTMU), multiple Enhanced Universal Synchronous/Asynchronous Receiver/Transmitters (EUSART), SPI, and I2C interfaces. The wide 1.8V-5.5V operating range allows direct connection to single-cell Li-ion or two-cell AA battery stacks without external level shifters. The PIC16LF1939 uses Microchip's enhanced mid-range 8-bit RISC core with a 14-bit instruction word, providing deterministic interrupt latency and single-cycle hardware multiply support in the instruction set. The integrated nanoWatt XLP technology delivers sleep currents in the sub-1uA range, enabling years of operation on a single coin cell. On-chip peripherals include 5 CCP/ECCP modules, comparators, and a configurable logic cell (CLC) for custom digital glue logic. Typical applications include low-power IoT sensor nodes, battery-powered consumer electronics, capacitive touch user interfaces (keypads, sliders, proximity sensors), home appliances, automotive body electronics (non-safety), industrial control panels, and USB/HID human interface devices when paired with an external USB transceiver. The combination of high Flash density, generous I/O count, and XLP power profile also makes it a strong fit for wearable medical monitoring and portable instrumentation. Design tip: Always place a 0.1uF decoupling capacitor as close as possible to each VDD pin, with a bulk 10uF capacitor on the main supply rail. For capacitive touch applications, follow Microchip's mTouch PCB layout guidelines for sensor electrode sizing, ground flooding, and guard-ring placement to maximize touch sensitivity and noise immunity. This page synthesizes distributor pricing, drop-in alternatives from the same PIC16LF1939 family, application-specific design guidance, and parametric comparisons not aggregated in the manufacturer datasheet alone.

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PIC16LF1946-E/MR - 14KB Flash LCD MCU, 32MHz, QFN-64 | Microchip
PIC16LF1946-E/MR

PIC16LF1946-E/MR - 14KB Flash LCD MCU, 32MHz, QFN-64 | Microchip

The Microchip Technology PIC16LF1946-E/MR is a 64-pin, 8-bit Flash-based CMOS microcontroller with an integrated LCD driver and nanoWatt XLP (eXtreme Low Power) technology, housed in a 9x9 mm QFN-64-EP (HVQCCN) package. It operates from a 1.8V to 3.6V supply, delivers 32 MHz maximum CPU performance through a high-performance RISC architecture, and integrates 14 KB of Flash program memory, 512 bytes of RAM, and 256 bytes of EEPROM. The part supports industrial-grade -40C to +125C operation (E temperature grade) and includes an on-chip LCD driver capable of driving up to 192 segments. What is a PIC microcontroller? A PIC microcontroller (Programmable Intelligent Computer) is a family of 8/16/32-bit RISC-based microcontrollers from Microchip Technology used in embedded systems. Within the broader taxonomy, PIC16LF1946 belongs to: microcontroller -> 8-bit MCU -> PIC16 family -> PIC16F/LF194x sub-family with LCD driver and XLP low-power peripherals. PIC MCUs are widely deployed in industrial control, consumer appliances, automotive body electronics, and battery-powered IoT edge nodes because they combine deterministic RISC execution, low sleep current, and rich on-chip peripherals (ADC, PWM, I2C, SPI, USART, LCD driver). Key features of the PIC16LF1946 include nanoWatt XLP sleep currents in the nanoampere range, multiple low-power operating modes (Sleep, Idle, Doze, alternate clock sources), an integrated segmented LCD driver with charge pump, multiple 10-bit ADC modules, two PWM peripherals, two comparators, and a 32 kHz internal oscillator for low-power timekeeping. The 64-pin QFN-EP package exposes a large thermal pad for heat dissipation and supports a wide peripheral pinout including 36+ I/O lines for application flexibility. Architecturally, the PIC16LF1946 uses a Harvard RISC core with single-cycle instruction execution at the system clock, a 14-bit instruction word, and 8-bit data path. The integrated LCD driver is one of its defining features, supporting static, 1/2, 1/3, and 1/4 bias multiplexed displays with up to 192 segments, eliminating the need for an external LCD controller. The EEPROM emulation in Flash and configurable oscillator options (HFINTOSC, LFINTOSC, external crystal) provide flexibility for energy-constrained designs. Typical applications include battery-powered thermostats, programmable timers, smart sensors with LCD readouts, portable medical devices with segment LCDs, white goods / home appliance user interfaces, instrument cluster displays, metering equipment, and any cost-sensitive embedded product requiring a graphical segment LCD without an external controller. Design consideration: When migrating from a larger PIC16 with external LCD driver to the PIC16LF1946, validate that your segment count, bias, and charge-pump voltage requirements fall within the on-chip LCD driver's maximum specifications; the QFN-64-EP package requires PCB thermal pad soldering per IPC-7093 for reliable thermal performance. This page synthesizes distributor pricing from LCSC, DigiKey, Mouser, and Octopart, drop-in alternatives from the same PIC16LF194x family, and practical design notes not found in the manufacturer datasheet alone.

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PIC16LF1946-E/PT - 8-Bit 32MHz XLP MCU 14KB Flash | Microchip
PIC16LF1946-E/PT

PIC16LF1946-E/PT - 8-Bit 32MHz XLP MCU 14KB Flash | Microchip

The Microchip Technology PIC16LF1946-E/PT is a PIC16F-series 8-bit RISC microcontroller featuring a 32MHz core, 14KB (8K x 14) of Flash program memory, 512 bytes of SRAM, and 256 bytes of EEPROM, housed in a 64-pin TQFP (10x10 mm) surface-mount package. The 'LF' designation and 'XLP' (eXtreme Low Power) nanoWatt technology enable operation across a 2.3V to 3.6V supply range with sub-microamp sleep currents suitable for battery-powered applications. An 8-bit microcontroller is a compact, single-chip processor that integrates a CPU, RAM, non-volatile program memory, and peripherals onto a single silicon die. It belongs to the broader microcontroller (MCU) family within embedded processing, itself a sub-category of microcomputer ICs in the integrated circuit hierarchy (microcontroller -> microprocessor -> semiconductor -> IC). 8-bit MCUs like the PIC16F-series are widely deployed where deterministic timing, low cost, and low power outweigh the throughput demands of 32-bit cores. Key features of the PIC16LF1946-E/PT include 36 general-purpose I/O pins, an integrated LCD driver with charge pump capable of driving segment displays up to 192 segments, a 10-bit ADC with up to 17 channels, multiple Enhanced USART, SPI, and I2C peripherals, and four 8-bit timers plus a 16-bit timer. The device supports Core Independent Peripherals (CIPs) that offload tasks from the CPU, freeing it for application logic. The architecture is built on a modified Harvard RISC design with a 14-bit instruction word, allowing most instructions to execute in a single cycle. With XLP nanoWatt technology, sleep current drops to roughly 50 nA typical, and the integrated LCD driver operates while the CPU is in sleep — a critical capability for energy-harvesting and always-on display applications. The 64-pin TQFP package exposes extensive I/O, including dedicated pins for the LCD segment drive and analog channels. Typical applications include industrial control panels with integrated LCD displays, low-cost consumer appliances, smart metering and energy monitors, medical handheld devices, and battery-backed sensors with segment-LCD readouts. The integrated LCD driver eliminates the need for an external display controller, reducing BOM cost and PCB footprint in HMI designs. When designing with this MCU, ensure the VDD/VSS pins have adequate decoupling (100nF ceramic + 10uF bulk) and respect the maximum clock rate derating curves above 3.0V. Programming via ICSP requires the standard Microchip ICD/REAL ICE toolchain — code protection should be configured in the configuration word before deployment. This page synthesizes distributor pricing, drop-in alternatives within the PIC16LF193x/194x/190x families, and practical design notes that go beyond the manufacturer datasheet's introductory chapters.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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