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PIC16LCE625-04I/P - 4MHz 8-bit OTP MCU 3.5KB | Microchip
PIC16LCE625-04I/P

PIC16LCE625-04I/P - 4MHz 8-bit OTP MCU 3.5KB | Microchip

The Microchip Technology PIC16LCE625-04I/P is an 8-bit RISC microcontroller in the PIC16LC family featuring 3.5KB (2K x 14) of One-Time-Programmable (OTP) program memory, 128 bytes of RAM, and 13 digital I/O pins. The device operates at up to 4MHz clock speed from a 2.5V to 5.5V supply and is housed in a 18-pin PDIP through-hole package (0.300 inch, 7.62mm). The "I" suffix designates an industrial temperature grade of -40C to +85C, while the "04" speed suffix denotes the 4MHz maximum oscillator frequency, and the "L" indicates the low-voltage LC process variant supporting 2.5V operation. An 8-bit microcontroller (MCU) is a single-chip computer containing a CPU, program memory, data RAM, and peripheral interfaces optimized for embedded control tasks. PIC microcontrollers use a modified Harvard RISC architecture with 14-bit-wide instruction words for compact code density, and the PIC16LC sub-family is the low-power CMOS evolution of the original PIC16C EPROM-based devices. Within Microchip's portfolio hierarchy, the PIC16LC sits between the PIC10/12/16 baseline family and the higher-performance PIC18 and dsPIC families, targeting cost-sensitive embedded applications with modest code size requirements. Key features of the PIC16LCE625 include an integrated precision comparator with programmable on-chip voltage reference, a 5-channel 8-bit ADC, one 8-bit timer/counter and one 16-bit timer/counter, a watchdog timer with on-chip RC oscillator, in-circuit serial programming (ICSP), and 8MHz internal RC operation. The brown-out reset (BOR) circuitry and power-on reset (POR) ensure reliable startup across the 2.5V-5.5V supply range. Power management features include idle and sleep modes with wake-on-interrupt, drawing microampere-level standby currents ideal for battery-powered designs. The device's PIC16C legacy architecture has a 2-stage pipeline executing most instructions in a single 200ns instruction cycle at 20MHz (or 1us at 4MHz for this part). This CISC-flavored RISC instruction set balances code density with deterministic interrupt response, and the 8-bit data path is sufficient for sensor interfacing, simple user I/O, and protocol conversion tasks. The 13 I/O pins share functionality with the comparator, ADC, and timers, allowing flexible pin allocation. Typical applications include industrial sensor conditioning with the on-chip comparator and ADC, low-power battery-powered instrument clusters, home appliance control boards, automotive body electronics nodes, and consumer white-goods control panels. The integrated analog peripherals eliminate external comparator and reference ICs in many designs. When designing with the PIC16LCE625, note that the OTP memory cannot be re-programmed - engineers should prototype with the pin-compatible PIC16F676 (Flash-based) and migrate to OTP only for production. The internal RC oscillator saves external crystal cost but may not meet timing-critical serial protocol requirements without calibration. This page synthesizes cross-reference drop-in alternatives, distributor pricing as of 2026-09-22, and practical design considerations not found in the Microchip datasheet alone.

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PIC16LCE625T-04/SO - 8-Bit 4MHz MCU, 3.5KB OTP, 18-SOIC | Microchip
PIC16LCE625T-04/SO

PIC16LCE625T-04/SO - 8-Bit 4MHz MCU, 3.5KB OTP, 18-SOIC | Microchip

The Microchip Technology PIC16LCE625T-04/SO is an 8-bit RISC microcontroller from the PIC16C family, featuring a 4MHz maximum clock speed, 3.5KB (2K x 14) of One-Time Programmable (OTP) program memory, 128 bytes of RAM, and 128 bytes of EEPROM data memory, housed in an 18-pin SOIC surface-mount package. A microcontroller (MCU) is a single-chip computer optimized for embedded control applications. Unlike a general-purpose microprocessor, an MCU integrates the CPU core, non-volatile program memory, working RAM, data EEPROM, digital I/O, and a range of on-chip peripherals (timers, ADC, comparators, capture/compare/PWM) onto a single die. The PIC16C architecture uses a Harvard design with separate program and data buses, which allows the CPU to fetch an instruction and read data in the same clock cycle. Key features of this device include 13 general-purpose digital I/O pins, an internal 4MHz oscillator option, an on-chip analog comparator, a 8-bit timer/counter with a prescaler, and an operating voltage range of 2.5V to 5.5V. The OTP program memory supports 1000 erase/write cycles minimum, and the EEPROM supports 1,000,000 erase/write cycles. The 18-SOIC package is approximately 11.7mm wide with a 1.27mm pitch, suitable for hand-soldered prototypes and reflow production lines alike. The PIC16LCE625T-04/SO uses CMOS technology with a reduced-power 'L' designator, supporting low-power operation modes including sleep and watchdog wake-up. The 35-instruction RISC core delivers predictable 200ns instruction cycles at 20MHz, 400ns at 4MHz, simplifying real-time firmware development. The architecture is optimized for deterministic interrupt response, an important consideration when replacing discrete logic in legacy industrial designs. Typical applications include white-goods appliance control, simple sensor interfaces, remote-control transmitters, low-cost consumer electronics, industrial control modules, and battery-powered measurement instruments. The 18-pin SOIC footprint and breadboard-compatible through-hole variants in the same family make this part a long-standing favorite for hobbyist and educational platforms, as well as mature commercial products that were originally designed around the PIC16C architecture. When designing with this device, note that OTP memory cannot be re-programmed; engineering samples should use the equivalent FLASH-based PIC16F625 in the same 18-SOIC package for firmware iteration, then move to the OTP part for production. The 'L' suffix indicates the low-voltage (2.5V-5.5V) variant suitable for battery operation; verify the operating voltage window matches your supply rail. This page synthesizes distributor pricing, package-level drop-in alternatives from the PIC16C and PIC16F families, and practical design notes not consolidated in any single manufacturer document.

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PIC16LCE625T-04/SS - 8-Bit 4MHz OTP MCU 3.5KB | 20-SSOP | Microchip
PIC16LCE625T-04/SS

PIC16LCE625T-04/SS - 8-Bit 4MHz OTP MCU 3.5KB | 20-SSOP | Microchip

The Microchip Technology PIC16LCE625T-04/SS is an 8-bit PIC16C-series microcontroller built on a RISC architecture, offering 4 MHz maximum clock speed, 3.5 KB (2K x 14) of One-Time Programmable (OTP) program memory, and 128 bytes of RAM, all integrated into a 20-pin SSOP package. The 'LC' suffix denotes the low-power CMOS variant (2.0 V to 6.0 V supply), the 'E' denotes the enhanced analog comparator option, and 'T-04' specifies tape-and-reel packaging with a 4 MHz speed grade. The device provides up to 13 bidirectional I/O pins and integrates peripherals including a comparator, timers, watchdog timer, and brown-out reset. A microcontroller (MCU) is a single-chip computer containing a CPU core, non-volatile program memory, working RAM, and programmable I/O peripherals. The PIC16C family uses a Harvard architecture that separates program and data memory buses, allowing simultaneous instruction fetch and operand access - this contributes to the family's reputation for deterministic execution and efficient code density. Within the broader taxonomy, the PIC16LCE625 belongs to: PIC16 family -> PIC16C sub-family -> PIC microcontroller -> 8-bit MCU -> embedded controller -> semiconductor IC. PIC MCUs remain widely deployed in cost-sensitive and low-power embedded designs. Key features of the PIC16LCE625 include an instruction set of only 35 single-word instructions, an 8-level hardware stack, in-circuit serial programming (ICSP) capability, programmable code protection, power-saving SLEEP mode with wake-up via interrupt, and an internal oscillator option on selected family members. The device supports both internal and external oscillator modes (LP, XT, HS, RC) for flexible clock configuration across 2.0-6.0 V operation. The PIC16LCE625's RISC core executes most instructions in a single instruction cycle (4 oscillator clocks), giving an effective throughput close to 1 MIPS at 4 MHz. This efficiency, combined with low quiescent current (under 1 mA active, single-digit µA in SLEEP), makes it attractive for battery-powered and energy-harvesting applications. Typical applications include appliance controls, security and alarm panels, remote transmitters, sensor signal conditioning front-ends, low-end motor control, smoke and CO detectors, and consumer white goods. The on-chip analog comparator supports simple threshold detection without an external op-amp, useful for battery-voltage monitoring or photodiode interfaces. When designing with this part, note that OTP memory can be programmed only once - engineering prototypes typically use a windowed (UV-erasable) CERDIP variant for iteration. Decoupling VDD with 100 nF plus 10 µF bulk, and placing a 10 kΩ pull-up on MCLR, are standard layout practices. This page synthesizes current distributor pricing, drop-in pin-compatible alternatives within the PIC16LC family, and practical design notes that complement the manufacturer datasheet with information-gain on supply and selection.

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PIC16LCE625T-04E/SO - 8-Bit 4MHz OTP MCU, 3.5KB | Microchip
PIC16LCE625T-04E/SO

PIC16LCE625T-04E/SO - 8-Bit 4MHz OTP MCU, 3.5KB | Microchip

The Microchip Technology PIC16LCE625T-04E/SO is an 8-bit RISC microcontroller from the PIC16C family, featuring 3.5KB (2K x 14) of One-Time Programmable (OTP) program memory, 128 bytes of SRAM, and 128 bytes of EEPROM, housed in an 18-pin SOIC package rated for tape-and-reel delivery. The device operates from a 3.3V/5V supply, executes most instructions in a single 200ns cycle (with a 4MHz oscillator), and exposes 13 digital I/O pins. Brown-out Detect/Reset, Power-on Reset, and a Watchdog Timer are integrated. An OTP microcontroller (One-Time Programmable) is a class of flashless MCU where program memory can be written exactly once during production or board-level programming, after which the code becomes permanent. Within the broader taxonomy, this places the PIC16LCE625 as: microcontroller -> embedded MCU -> 8-bit RISC MCU -> PIC16C family -> OTP-programmed member. OTP MCUs are favored in cost-sensitive, high-volume, fixed-code applications where field firmware updates are not required. Key features include a 35-instruction RISC core optimized for compact C and assembly code, an internal/external oscillator interface, 128 bytes of on-chip EEPROM for non-volatile parameter storage, 13 general-purpose I/O pins with individual direction control, and integrated peripherals such as a comparator, timer/counter, and brown-out reset. The 4MHz maximum clock input delivers up to 5 MIPS of throughput. Architecturally, the PIC16LCE625T-04E/SO uses a Harvard bus design with separate program and data paths, allowing instruction fetch and data access to occur in a single cycle. The 'LC' suffix indicates a low-voltage CMOS variant supporting operation down to approximately 2.5V, while the 'E' designation marks the enhanced (industrial) temperature grade. OTP memory offers higher density and lower per-unit cost than UV-EPROM versions in mass production. Typical applications include appliance control boards, simple sensor interfaces, low-cost consumer electronics, automotive body modules (when qualified appropriately), and industrial control logic. The wide operating voltage range and integrated brown-out reset make it suitable for environments with unstable power rails. When designing with this device, allocate sufficient time for OTP programming during manufacturing, as OTP parts cannot be reprogrammed or field-updated. Plan for a programming adapter or in-circuit programming header in production fixtures, and use the EEPROM area for user-adjustable parameters that may need modification without re-flashing the OTP code region. This page synthesizes distributor pricing, same-brand and cross-brand drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC16LCE625T-04E/SS - 4MHz 8-bit OTP MCU 20-SSOP | Microchip
PIC16LCE625T-04E/SS

PIC16LCE625T-04E/SS - 4MHz 8-bit OTP MCU 20-SSOP | Microchip

The Microchip Technology PIC16LCE625T-04E/SS is an 8-bit PIC® 16C-family microcontroller with 3.5KB (2K x 14) of One-Time-Programmable (OTP) program memory and 128 bytes of SRAM, housed in a 20-pin SSOP surface-mount package. It is rated for operation at 4MHz with an external oscillator and supports a supply voltage of 3.3V or 5V, providing 13 general-purpose I/O pins. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, working RAM, and a set of on-chip peripherals such as timers, communication controllers, and analog interfaces. Within the broader semiconductor hierarchy, the PIC16LCE625 belongs to the 8-bit microcontroller family, which sits beneath 16-bit and 32-bit MCU classes and is widely used in cost-sensitive, deterministic control applications. OTP devices like the PIC16LCE625 occupy the low-cost, low-power end of the PIC16 lineup. Key features of this part include a RISC instruction set of 35 single-cycle instructions (200ns per instruction at 4MHz, except program branches which are two-cycle), Brown-out Detect/Reset, Power-on Reset (POR), and a Watchdog Timer (WDT). The device operates across the commercial and industrial temperature ranges typical of the PIC16LC series, making it suitable for embedded control products that require ROM-equivalent code protection without the per-unit programming overhead of mask ROM. The PIC16LCE625T-04E/SS uses an external clock input architecture, allowing the system designer to choose the oscillator topology (RC, crystal, ceramic resonator, or external clock) best suited to the application. The 'L' prefix indicates the low-voltage (LC) operating range, while the 'E' suffix designates the extended (industrial) temperature grade and 'T' indicates tape-and-reel packaging for high-volume assembly. Typical applications include consumer appliance control, simple sensor interfaces, low-end remote controls, and other cost-sensitive embedded products where deterministic 8-bit processing and on-chip OTP storage are sufficient. Compared to flash-based PIC16F parts, OTP variants offer lower per-unit cost for high-volume production runs. When designing with this device, note that OTP memory can be programmed only once, so firmware must be fully validated before committing to production. Designers transitioning from PIC16F or PIC16LF parts should verify register maps and pin assignments because the OTP PIC16LCE family is pin- and code-compatible with the corresponding 'F' parts. This page synthesizes distributor pricing, same-package drop-in alternatives, and practical design notes for engineers working with the PIC16LCE625T-04E/SS in long-lifecycle and obsolescence-mitigation projects.

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PIC16LCE625T-04I/SO - 8-Bit 4MHz 3.5KB OTP MCU | Microchip
PIC16LCE625T-04I/SO

PIC16LCE625T-04I/SO - 8-Bit 4MHz 3.5KB OTP MCU | Microchip

The Microchip Technology PIC16LCE625T-04I/SO is an 8-bit PIC16C-series microcontroller with 4 MHz maximum clock speed and 3.5 KB (2K x 14) of One-Time Programmable (OTP) program memory, housed in an 18-pin SOIC package. Designed for low-power embedded control, it integrates 128 bytes of RAM, 12 I/O ports, and an enhanced mid-range RISC core with 35 single-word instructions. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (ROM/Flash/OTP), working RAM, and programmable peripherals into one package. The PIC16C family belongs to Microchip's classic 8-bit architecture, widely used in industrial controls, automotive subsystems, and consumer appliances where deterministic interrupt response and proven reliability outweigh raw throughput. Within the broader taxonomy, an MCU falls under microcontrollers -> integrated circuits -> semiconductors. The 'L' in PIC16LCE625T denotes the low-voltage, low-power process variant optimized for 2.5V to 5.5V operation, while 'CE' marks the Enhanced 14-bit core. Key features of the PIC16LCE625T-04I/SO include an operating voltage range of 2.5V to 5.5V (with the industrial -I grade rated -40C to +85C), an internal 4 MHz oscillator option, dual analog comparators with programmable reference, a 13-bit timer/counter with prescaler, and synchronous/asynchronous serial port (SSP) support. The 18-SOIC package provides a small outline surface-mount footprint compatible with standard pick-and-place assembly. Technically, the device uses a Harvard-architecture CPU with separate program and data buses, a 14-bit instruction word, and a single accumulator (W) plus 36-byte file register area. The PIC16C mid-range core delivers predictable instruction timing (4 clock cycles per instruction) and an interrupt structure suitable for real-time control loops. Brown-out detection, power-on reset, and a watchdog timer with on-chip RC oscillator are standard on-chip safety features. Typical applications include motor control front-ends, sensor signal conditioning, automotive body electronics (lighting, door modules), industrial sensor interfaces, and battery-powered instrumentation. The OTP memory suits production designs where firmware is fixed and field reprogramming is unnecessary, reducing unit cost relative to Flash-based equivalents. When designing with this part, ensure VDD decoupling includes a 100 nF ceramic capacitor placed within 5 mm of the VDD pin and a bulk tantalum or aluminum capacitor (>=10 uF) at the board supply rail. The MCLR reset pin should be tied to VDD through a 10 kohm pull-up to avoid spurious resets in noisy environments. This page consolidates current distributor pricing, drop-in same-package alternatives, and practical PCB design notes beyond the basic datasheet - a synthesis aimed at engineers and procurement teams evaluating the PIC16LCE625T-04I/SO for new designs and legacy reorders.

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PIC16LCE625T-04I/SS - 8-Bit 4MHz OTP MCU 3.5KB Flash | Microchip
PIC16LCE625T-04I/SS

PIC16LCE625T-04I/SS - 8-Bit 4MHz OTP MCU 3.5KB Flash | Microchip

The Microchip Technology PIC16LCE625T-04I/SS is an 8-bit PIC microcontroller from the PIC16C family, featuring 3.5KB (2K x 14) of One-Time Programmable (OTP) program memory, 128 bytes of RAM, and 128 bytes of EEPROM data memory, housed in a 20-pin SSOP package. It operates at up to 4MHz with an external oscillator and offers 13 general-purpose I/O pins. The device supports a wide operating voltage range typical of the PIC16CE62X family and includes on-chip peripherals such as Brown-out Detect/Reset (BOR), Power-On Reset (POR), and a Watchdog Timer (WDT). An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and I/O peripherals. The PIC architecture uses a Harvard RISC design with separate program and data buses, allowing instruction fetch and data access to occur in the same clock cycle. Within the broader semiconductor hierarchy, MCUs belong to logic ICs > microcontrollers > embedded processors > semiconductors. The 'CE' family designation indicates integrated EEPROM data memory, a feature that distinguishes PIC16CE62X from the parallel PIC16C62X series and makes the 'LCE' variant suitable for applications requiring non-volatile parameter storage without external EEPROM chips. Key features of the PIC16LCE625T-04I/SS include 35 instructions, a 14-bit instruction word, eight-level deep hardware stack, and direct/indirect/relative addressing modes. Peripherals comprise a Timer0 8-bit counter/timer with 8-bit prescaler, Timer1 16-bit counter/timer, capture/compare/PWM (CCP) module, and a 10-bit analog-to-digital converter (ADC). The 13 I/O pins can be individually configured for digital input or output, with several pins shared with analog and peripheral functions. Architecturally, the PIC16LCE625 employs CMOS technology with low-power operation suitable for battery-powered and industrial applications. The OTP program memory is programmed once and is non-erasable; for development cycles, windowed CERDIP variants provide UV-erase capability. The integrated 128-byte EEPROM is rated for 1 million erase/write cycles, providing reliable non-volatile storage for user calibration data, configuration parameters, or runtime logs. Typical applications include industrial control subsystems, sensor interface modules, automotive body electronics (pre-CAN era), appliance control boards, and low-power embedded sensor nodes. The combination of OTP program memory, integrated EEPROM, and 13 I/O makes this part suited for cost-sensitive high-volume products where firmware is finalized before mask programming. A key design consideration: the 'LCE' suffix indicates low-voltage (LC) operation with EEPROM data memory; the 'T' suffix denotes tape-and-reel packaging; the 'I' indicates the industrial temperature range (-40C to +85C); and the '/SS' suffix confirms the 20-pin SSOP package footprint. Designers should verify oscillator configuration bits for RC, XT, or HS modes based on system clock accuracy requirements. This page synthesizes distributor pricing from 2 verified sources, lists 6 pin-compatible Microchip alternatives from the same family, and provides design notes not duplicated from the manufacturer datasheet.

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PIC16LF1454-E/JQ - 8-Bit USB MCU, 14KB Flash, XLP | Microchip
PIC16LF1454-E/JQ

PIC16LF1454-E/JQ - 8-Bit USB MCU, 14KB Flash, XLP | Microchip

The Microchip Technology PIC16LF1454-E/JQ is an 8-bit PIC microcontroller with integrated USB 2.0 full-speed support, 14KB (8K x 14) of Flash program memory and 512 bytes of RAM, housed in a compact 16-pin UQFN (4x4 mm) exposed-pad package. The device operates from a wide 2.3V to 5.5V supply range, supports clock speeds up to 48 MHz, and is built around Microchip's enhanced mid-range PIC16 CPU core with a 14-bit instruction word. An 8-bit microcontroller (MCU) is a small computer-on-a-chip integrating a CPU, program memory (Flash), data memory (RAM), peripherals, and I/O. Microcontrollers sit at the lowest tier of the embedded computing hierarchy: MCU -> embedded controller -> embedded system -> electronic product. The "LF" prefix in PIC16LF1454 denotes the Low-Frequency/Low-Power variant, paired here with Microchip's eXtreme Low Power (XLP) technology, which delivers nanoWatt sleep currents suitable for battery-powered and USB bus-powered designs. The PIC16 family occupies the mid-range 8-bit segment in Microchip's portfolio, between the baseline PIC10/12 and the high-performance PIC18/dsPIC families. Key features include a full-speed USB 2.0 peripheral with internal transceiver, 14KB self-programmable Flash, 256 bytes of EEPROM, a 10-bit ADC with up to 9 channels, two 8-bit timers plus one 16-bit timer, PWM/Signal Measurement peripherals, and a configurable Logic Cell. The integrated 48 MHz internal oscillator eliminates the need for an external crystal in many USB applications, reducing BOM cost and PCB area. The PIC16LF1454 architecture uses a 14-bit instruction width and a hardware stack, with a single-cycle hardware multiplier and interrupt controller supporting up to 18 sources. The integrated USB module includes a dedicated 3.3V regulator and pull-up resistor control, simplifying USB device hardware designs. Typical applications include USB HID peripherals (keyboards, mice, custom input devices), USB-to-UART bridges, low-power sensor nodes, consumer electronics accessories, and battery-powered data loggers. Its combination of integrated USB and nanoWatt XLP standby makes it well suited for USB bus-powered or coin-cell designs. Designers should note that the UQFN-16 (JQ) exposed pad must be soldered to a ground copper pour for proper thermal and electrical performance, and decoupling capacitors should be placed close to VDD. For USB applications, the 48 MHz accuracy of the internal oscillator meets the USB full-speed clock tolerance specification. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet, supporting faster component selection and sourcing.

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PIC16LF1454-E/ML - 8-bit USB MCU, 14KB Flash, 16-QFN | Microchip
PIC16LF1454-E/ML

PIC16LF1454-E/ML - 8-bit USB MCU, 14KB Flash, 16-QFN | Microchip

The Microchip Technology PIC16LF1454-E/ML is an 8-bit PIC RISC USB microcontroller featuring 14KB of Flash program memory, 512 bytes of RAM, and an internal 48MHz oscillator, housed in a 16-pin QFN (4x4) package with an exposed thermal pad. It belongs to the PIC16F1454/55/59 family of low-pin-count USB microcontrollers and is part of Microchip's extreme low-power (XLP) portfolio. A microcontroller (MCU) is a single-chip computer containing a CPU, RAM, non-volatile program memory, and configurable peripherals. The 8-bit class - exemplified by the PIC16 architecture - remains the workhorse of cost-sensitive embedded designs because of its deterministic instruction cycle, low sleep current, and decades of stable toolchain support. Microcontrollers sit at the bottom of the embedded hierarchy: MCU -> embedded processor -> semiconductor IC, and form the core of nearly every IoT, consumer, and industrial node. Key specifications include 14KB (8K x 14 words) of self-programmable Flash, 256 bytes of EEPROM data memory, 512 bytes of RAM, 12 I/O pins, and integrated full-speed USB 2.0 transceiver with on-chip pull-up resistors. The device operates from 2.0V to 3.6V, draws nanoWatt sleep currents below 1 uA in XLP modes, and includes a 10-bit ADC with up to 9 channels, two PWM modules, and configurable serial peripherals (I2C/SPI/EUSART). The 48MHz internal oscillator eliminates an external crystal in most designs, reducing BOM cost. Architecturally, the PIC16LF1454 uses Microchip's enhanced mid-range 8-bit core with a hardware multiplier and vectored interrupts. The integrated USB transceiver follows the USB 2.0 full-speed (12 Mbps) specification, eliminating the need for an external USB PHY. Combined with on-board pull-up switching, the MCU can present itself as a USB device with only a few decoupling capacitors and a USB connector. Typical applications include low-cost USB HID peripherals, USB-to-UART bridges, LED lighting controllers, capacitive touch user interfaces, battery-powered sensor nodes, and consumer electronics such as PC accessories. The XLP nanoWatt technology makes it particularly attractive for always-on USB-powered or coin-cell designs where suspend current must stay under 2.5 mA to remain USB-compliant. When designing with this device, ensure the exposed thermal pad is soldered to a sufficiently large copper pour for heat dissipation; operation near 48MHz at full peripheral load can push dissipation above 50 mW. The 16-QFN package also requires careful PCB escape routing because inner-row pins are not accessible without a via-in-pad or dog-bone fan-out. This page consolidates distributor pricing, drop-in alternatives in the 16-QFN footprint, and practical design notes not found in the manufacturer datasheet.

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PIC16LF1454-E/SL - 8-bit MCU, 14KB Flash, USB 2.0, 14-SOIC | Microchip
PIC16LF1454-E/SL

PIC16LF1454-E/SL - 8-bit MCU, 14KB Flash, USB 2.0, 14-SOIC | Microchip

The Microchip Technology PIC16LF1454-E/SL is an 8-bit PIC microcontroller from the PIC® XLP™ 16F family, featuring an enhanced mid-range core running at up to 48 MHz internal clock, 14 KB (8K x 14 words) of Flash program memory, and a USB 2.0 Full-Speed device module with clock recovery from host - all integrated in a 14-pin SOIC (SL) package. The 'LF' suffix designates the low-voltage variant optimized for battery-powered designs with a VDD range of 1.8 V to 3.6 V. An 8-bit microcontroller (MCU) is a programmable embedded computing device built around an 8-bit data path, on-chip Flash program memory, RAM, peripherals, and I/O pins. PIC microcontrollers use a RISC architecture with a small fixed instruction set, organized within the broader taxonomy: MCU -> microcontroller -> embedded processor -> semiconductor. The PIC16F1xxx family adds enhanced mid-range features including 49 instructions, 16 stack levels, self read/write capability on Flash, and a high-endurance Flash (HEF) cell rated for 100,000 erase/write cycles. Key features of the PIC16LF1454-E/SL include 49 instructions, 16 hardware stack levels, 128 bytes of non-volatile data storage (EEPROM-style HEF), 12 general-purpose I/O pins, an internal 48 MHz oscillator, and a USB 2.0 module with on-chip transceiver and clock recovery. Additional peripherals include multiple timers, a 10-bit ADC with capacitive touch sensing, comparators, MI2C, SPI, and USART. The XLP (eXtreme Low Power) designation delivers active currents in the microamp range and sleep currents below 1 µA typical. The architecture combines a RISC Harvard CPU core with a single-cycle instruction pipeline and hardware multiply assist, enabling deterministic execution at 48 MIPS peak. The integrated USB 2.0 full-speed module is uncommon in this pin count and eliminates the need for an external crystal on USB applications thanks to clock recovery from the host SOF packets. Typical applications include low-cost USB HID peripherals, capacitive touch keypads, sensor nodes with USB diagnostics, portable consumer devices, and battery-powered data loggers. In industrial settings, the part suits low-pin-count human-machine interface panels and bridging dongles. For designers considering a USB-enabled 8-bit MCU with minimal BOM, the PIC16LF1454 is a strong baseline. When designing with this device, place the VDD/VSS decoupling pair within 3 mm of the package pins and route the USB D+/D- traces as a 90 Ω differential pair with matched length, per Microchip's USB design guidelines. This page synthesizes distributor pricing, drop-in package alternatives, and practical design notes not found in the standalone manufacturer datasheet.

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PIC16LF1454-E/ST - 8-bit USB MCU 14KB Flash XLP 14-TSSOP
PIC16LF1454-E/ST

PIC16LF1454-E/ST - 8-bit USB MCU 14KB Flash XLP 14-TSSOP

The Microchip Technology PIC16LF1454-E/ST is an 8-bit PIC16F-series microcontroller featuring a 48 MHz enhanced mid-range core, 14 KB (8K x 14) of Flash program memory, and integrated USB 2.0 with clock recovery, housed in a 14-pin TSSOP package. The 'LF' prefix designates the low-power (F) variant operating from a 2.0 V to 3.6 V supply, while the 'E' suffix indicates the -40C to +125C extended industrial temperature grade. The PIC16F1454 family is an enhanced mid-range 8-bit CMOS microcontroller using Microchip's PIC RISC architecture, which delivers 200 ns instruction execution and balances powerful peripherals with a small footprint. Within the broader taxonomy it sits as a microcontroller -> 8-bit MCU -> PIC16 family -> power-managed USB device. PIC microcontrollers are widely recognized as low-power, easy-to-program embedded controllers that simplify USB connectivity in cost-sensitive designs. Key differentiating features include 14 KB Flash with self read/write capability, 128 B of non-volatile data storage (HEF), 512 bytes of SRAM, a 48 MHz internal oscillator eliminating external crystals, a Universal Serial Bus 2.0 module with on-chip clock recovery from the USB host, a Master I2C/SPI module, and XLP (eXtreme Low Power) technology for sleep currents down to the nanoampere range. Twelve I/O pins give designers flexibility for human-interface, sensing, or communication side-channels alongside USB. Typical applications cover USB HID peripherals such as keyboards, mice, and game controllers, USB-to-UART bridges and CDC virtual COM ports, low-power sensor nodes with USB debug, capacitive-touch human-interface devices, and industrial data-loggers that need bus-powered enumeration. The wide 2.0-3.6 V operating range is ideal for Li-ion or 3.3 V regulated rails. When laying out a board, route the USB D+/D- differential pair with 90 ohm impedance and place the optional 27 ohm series resistors close to the MCU. Confirm that the ICSP/ICD pins are accessible for in-circuit programming and debugging. This page consolidates distributor pricing, drop-in alternatives, and design notes not found in the manufacturer datasheet alone.

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PIC16LF1454-I/JQ - 8-bit 48MHz USB MCU 14KB Flash UQFN-16 | Microchip
PIC16LF1454-I/JQ

PIC16LF1454-I/JQ - 8-bit 48MHz USB MCU 14KB Flash UQFN-16 | Microchip

The Microchip PIC16LF1454-I/JQ is an 8-bit PIC microcontroller in the PIC16LF145x family, featuring a 48 MHz enhanced mid-range core, 14 KB Flash program memory (8K x 14), 1 KB RAM, and an integrated USB 2.0 full-speed device controller, housed in a 16-pin UQFN 4x4 mm package with exposed pad. Operating from 1.8 V to 3.6 V, it consumes very low active and sleep currents and is targeted at USB-connected embedded applications where PCB real estate is at a premium. 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. The PIC16LF1454 belongs to the 8-bit PIC family, a RISC architecture with a small, deterministic instruction set (49 instructions, 16 stack levels) widely used in cost-sensitive embedded designs. Within the broader taxonomy, this part is a low-power (LF) USB-capable general-purpose MCU in the mid-range PIC16F1xxx line. Key differentiating features include the integrated USB 2.0 module with clock recovery from the USB host (eliminating an external crystal for USB in many designs), a 48 MHz internal oscillator with 4x PLL for USB operation, 8 general-purpose I/O pins, 128 B of non-volatile data storage, MI2C, and high-endurance flash memory (HEF). XLP (eXtreme Low Power) technology delivers typical sleep currents below 1 uA, while the integrated 10-bit ADC and PWM outputs support sensor and motor-control sub-functions. Architecturally, the device uses a Harvard-style RISC core with a 14-bit instruction word, self read/write capable flash, and a dedicated USB SIE that handles NRZI encoding/decoding, bit stuffing, and resume/reset signaling without CPU intervention. The 4x PLL allows the 48 MHz USB clock to be derived from a low-frequency internal source, reducing BOM cost and simplifying layout. Typical applications include USB HID peripherals (mouse, keyboard, custom input devices), USB-to-UART bridge dongles, low-cost USB sensor interfaces, USB cable identification and charger emulators, USB LED controllers, and consumer accessories that must present as a USB device. The small 4x4 mm UQFN footprint suits space-constrained wearables and dongles. When designing with this MCU, ensure the exposed pad is soldered to a sufficient ground copper pour for thermal dissipation and signal integrity, and follow Microchip AN463 "Layout Checklist for USB Operation" for D+/D- trace impedance. The internal 48 MHz oscillator eliminates one external crystal, but the USB bus-state pull-up resistor on D- still needs external provisioning.

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PIC16LF1454-I/ML - 14KB Flash USB MCU, 16-QFN | Microchip
PIC16LF1454-I/ML

PIC16LF1454-I/ML - 14KB Flash USB MCU, 16-QFN | Microchip

The Microchip Technology PIC16LF1454-I/ML is an 8-bit PIC16F microcontroller in a 16-pin QFN (4x4 mm) package with integrated USB 2.0 full-speed support. It features 14 KB (8K x 14) of self-read/write Flash program memory, 1 KB RAM, a 48 MHz internal oscillator, and operates from 1.8 V to 3.6 V supply, making it ideal for low-power and battery-powered designs. What is a PIC16 microcontroller? PIC16 is a family of 8-bit microcontrollers from Microchip Technology featuring an enhanced mid-range core, RISC architecture, and a peripheral set aimed at low-power, mixed-signal, and connectivity-oriented embedded applications. PIC16 MCUs sit within Microchip's broader hierarchy: PIC10/12/16/18 (8-bit) -> PIC24/dsPIC (16-bit) -> PIC32MX/PIC32MZ (32-bit MIPS). They are widely used in cost-sensitive consumer, USB peripheral, and human-interface-device designs where predictable real-time performance, deep sleep current, and toolchain maturity matter most. The PIC16LF1454 is built around the enhanced mid-range core with 49 instructions and a 16-level hardware stack. It includes a high-endurance Flash (HEF) block, 128 bytes of non-volatile data EEPROM emulation, and a precision 48 MHz internal oscillator that eliminates the need for an external crystal in most designs. Integrated peripherals include a USB 2.0 full-speed module with clock recovery, MI2C/SPI (MSSP), EUSART, two capture/compare/PWM modules, a 10-bit ADC with computation, two comparators, and a reference clock output. The integrated USB 2.0 module with on-chip transceiver and clock-recovery PLL is the defining feature of this part. It supports HID, CDC, vendor-class, and composite USB device stacks using Microchip's free USB framework on MPLAB X IDE. Compared with non-USB PIC16 parts, the LF1454 removes external USB transceivers, crystals, and the BOM cost they incur, while keeping the MCU core inside the familiar PIC16 ecosystem. Typical applications include USB HID peripherals (keyboards, mice, custom input tools), USB-to-UART bridge dongles, low-cost data loggers, environmental sensor pods, IoT edge nodes, and consumer accessories that need bus-powered operation. Designers also use it for general-purpose 8-bit control in compact QFN footprints, motor-preferences, and lighting-preferences that benefit from eXtreme Low Power (XLP) sleep currents measured in tens of nanoamps. When designing with this device, ensure that VUSB is decoupled with 220 nF plus 1 uF as recommended by Microchip, and route the D+/D- traces as a 90-ohm differential pair. If in-circuit serial programming (ICSP) is required, the alternate ICSP pins multiplexed with the USB lines cannot be used simultaneously with USB traffic - plan the pin allocation before layout. This page synthesizes distributor pricing across DigiKey, Mouser, LCSC and Octopart, drop-in package-matched alternatives, and practical design notes - information not aggregated on any single manufacturer or distributor page.

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PIC16LF1454-I/SL - 8-Bit USB MCU, 14KB Flash, 48MHz | Microchip
PIC16LF1454-I/SL

PIC16LF1454-I/SL - 8-Bit USB MCU, 14KB Flash, 48MHz | Microchip

The Microchip Technology PIC16LF1454-I/SL is an 8-bit PIC16F USB microcontroller running up to 48 MHz with 14 KB (8K x 14) of Flash program memory, packaged in a 14-pin SOIC (SL) form factor and characterized for the industrial -40C to +85C range. The "LF" prefix denotes the low-voltage (F) part that operates from 1.8 V to 3.6 V VDD, suiting it directly to coin-cell, Li-ion, and regulated 3.3 V rails. The "I/SL" suffix means industrial temperature grade, 14-pin SOIC with gull-wing leads. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (Flash for program, SRAM for data), and peripherals on one die. The PIC16F family is Microchip's mid-range 8-bit architecture with a RISC instruction set, optimized for deterministic interrupt latency, ultra-low-power sleep modes, and peripheral-rich designs. The PIC16LF1454 sits in Microchip's eXtreme Low Power (XLP) family and uniquely integrates a full-speed USB 2.0 peripheral (with an internal 3.3 V LDO and 48 MHz PLL) at this package size and price point. Key features include 14 KB self-programmable Flash, 512 bytes SRAM, hardware USB 2.0 full-speed with on-chip transceiver, two PWM modules, a 10-bit ADC with up to 9 channels, an analog comparator, and the enhanced mid-range 16-bit instruction set. The internal 48 MHz oscillator eliminates external crystals in many USB designs, and XLP technology delivers nanoWatt sleep currents in the tens of nanoampere range, making the part well-suited to battery-powered or bus-powered devices. Architecturally the device pairs an 8-bit ALU with a 14-bit program word and a 16-level hardware stack. The USB module is clocked from the 48 MHz PLL, and an internal 3.3 V regulator powers the USB transceiver from VDD, so no external LDO is required when VDD is 3.6 V or higher. The CIP (Core Independent Peripherals) set allows ADCs, PWMs, and timers to operate in sleep without CPU intervention, extending battery life. Typical applications include low-cost USB HID peripherals (keyboards, mice, custom HID), USB-to-UART bridges, CDC virtual COM ports, USB sensor dongles, wearable fitness devices, and any size-constrained consumer product that needs USB connectivity on a coin-cell battery. The wide 1.8-3.6 V range supports direct Li-ion cell operation and 3.3 V system buses. Designers should budget for a pull-up on D+ (per USB spec) and place the 0.1 uF VDD decoupling capacitor within 5 mm of the pin. The ICSP pins (RB6/RB7) are multiplexed with USB lines, so an ICSP header should include isolation resistors to allow USB operation during programming. Pin 14 ("??" pin) must be tied to VDD for normal operation per datasheet guidelines. This page synthesizes distributor pricing, drop-in same-package alternatives, and design notes not bundled in the manufacturer datasheet - useful for sourcing, BOM optimization, and second-source selection.

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PIC16LF1454-I/ST - 8-bit 48MHz 14KB Flash USB MCU | Microchip
PIC16LF1454-I/ST

PIC16LF1454-I/ST - 8-bit 48MHz 14KB Flash USB MCU | Microchip

The Microchip Technology PIC16LF1454-I/ST is an 8-bit PIC microcontroller from the PIC® XLP™ 16F family, featuring 14KB (8K x 14) of Flash program memory and operating at up to 48 MHz internal clock speed, housed in a 14-pin TSSOP package. It supports a wide 1.8V to 5.5V supply voltage range with low-power XLP technology, making it suitable for both battery-powered and USB-powered designs. An 8-bit PIC microcontroller is a Harvard-architecture RISC device that executes one instruction per clock cycle (excluding branches), uses separate program and data memory buses, and is widely deployed across consumer, industrial, and automotive embedded designs. The PIC16LF1454 belongs to the enhanced mid-range core family, offering 49 instructions, 16-level hardware stack, and integrated peripherals including a USB 2.0 full-speed module with clock recovery, MI2C, USART, and 12-bit ADC. Key differentiating specifications include 14KB self-read/write Flash with high-endurance Flash (HEF), 1KB RAM, 128B non-volatile data EEPROM, an internal 48 MHz oscillator with USB-friendly PLL, and nanoWatt XLP power management that drops quiescent current below 1 µA in sleep. The integrated USB 2.0 module with on-chip transceiver eliminates the need for external USB PHY components in low-speed and full-speed designs. Typical applications include USB HID peripherals (keyboards, mice, game controllers), USB-to-UART bridges, capacitive touch sensing front-ends, wearable sensor nodes, low-power IoT endpoints, and small industrial control boards. The 14-pin footprint keeps BOM cost low while the USB module allows direct bus-powered connectivity. When designing with this part, ensure the internal oscillator accuracy and PLL settings meet USB full-speed timing requirements; an external 48 MHz crystal can be substituted for tighter USB jitter. The TSSOP-14 footprint is friendly to hand-soldering and rework, but the exposed variants (PIC16LF1454-I/ML in QFN) offer better thermal performance for higher duty-cycle USB applications. This page synthesizes distributor pricing, drop-in alternatives within the PIC16LF145x family and pin-compatible variants, and practical design notes not found in the manufacturer datasheet alone.

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PIC16LF1454T-I/JQ - 8-bit USB MCU 48MHz 14KB Flash UQFN-16 | Microchip
PIC16LF1454T-I/JQ

PIC16LF1454T-I/JQ - 8-bit USB MCU 48MHz 14KB Flash UQFN-16 | Microchip

The Microchip Technology PIC16LF1454T-I/JQ is an 8-bit PIC16F-series microcontroller built on Microchip's enhanced mid-range core running at up to 48 MHz internal clock speed. It integrates 14 KB Flash program memory, 1 KB SRAM data memory, 128 B of non-volatile data storage, and a USB 2.0 full-speed device module with clock recovery from host, all in a compact 16-pin UQFN (4x4 mm) package. The 'LF' prefix denotes the low-power 'F' variant, optimized for 1.8 V to 3.6 V supply operation, ideal for USB-powered and battery-driven designs. What is a microcontroller (MCU)? A microcontroller is a single-chip computer that integrates a CPU core, non-volatile program memory, working RAM, and peripheral interfaces (ADC, timers, communication buses, I/O). MCUs belong to the broader embedded controller family and sit at the top of the SoC (System-on-Chip) hierarchy used in modern electronics. PIC microcontrollers are 8-bit RISC devices using a Harvard architecture and a compact, deterministic instruction set, widely used in cost-sensitive and low-power embedded systems. The PIC16LF1454 integrates XLP (eXtreme Low Power) technology, supporting sleep currents in the nanoampere range and multiple power-managed operating modes. Key peripherals include a 10-bit ADC with computation, two PWM modules, multiple timers, an enhanced USART, MSSP for I2C/SPI, and 8 general-purpose I/O pins. The integrated USB 2.0 module with on-chip transceiver and clock recovery eliminates the need for an external crystal on many USB designs, reducing BOM cost and board area. The internal 48 MHz oscillator and PLL-derived system clock provide sufficient throughput for USB 2.0 full-speed (12 Mbps) operation while leaving headroom for protocol stacks. The 16-level hardware stack, 49 base instructions, and self-read/write capability of the flash memory support in-application firmware updates via the bootloader-friendly architecture. Typical applications include USB HID peripherals (keyboards, mice, game controllers), USB-to-UART bridges, low-power sensor nodes, consumer accessories, and learning/evaluation platforms. The device is suitable wherever compact size, integrated USB, and ultra-low sleep current are simultaneously required. When designing with this part, ensure the USB DP/DM traces are routed as a 90-ohm differential pair and that VUSB is properly decoupled per USB 2.0 specification. For battery applications, leverage the XLP sleep modes and verify the brown-out reset threshold is configured to match the battery cutoff voltage. This page synthesizes distributor pricing, drop-in alternative MPNs, pin-compatible substitutes, and practical design notes compiled from Microchip's datasheet, DigiKey, Mouser, and LCSC listings, beyond what is shown in any single manufacturer page.

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PIC16LF1454T-I/ML - 8-Bit 48MHz MCU 14KB Flash USB QFN-16 | Microchip
PIC16LF1454T-I/ML

PIC16LF1454T-I/ML - 8-Bit 48MHz MCU 14KB Flash USB QFN-16 | Microchip

The Microchip Technology PIC16LF1454T-I/ML is an 8-bit PIC microcontroller in the PIC16LF145x family featuring 14KB (8K x 14) of self-read/write Flash program memory, 48 MHz internal oscillator, and an integrated USB 2.0 Full-Speed module with clock recovery from the USB host, housed in a 16-pin QFN (4x4 mm) package with exposed pad. The 'LF' prefix indicates an extended (XLP) low-power variant supporting operation down to 2.0V with nanoWatt sleep currents, while the 'T' suffix designates tape-and-reel packaging and the 'I' indicates the -40C to +85C industrial temperature grade. A PIC microcontroller (Programmable Interface Controller) is a compact, single-chip computer that integrates a CPU, non-volatile Flash program memory, SRAM data memory, EEPROM, and configurable peripherals into one IC. PIC MCUs sit within the broader hierarchy of microcontrollers -> embedded processors -> semiconductor devices, and the enhanced mid-range 8-bit core in the PIC16LF1454 supports 49 instructions and 16 stack levels while occupying a fraction of the cost and power of 32-bit alternatives. Key features that differentiate this part include 128 B of non-volatile data storage (HEF/High-Endurance Flash), an MI2C/SPI peripheral module, internal 48 MHz oscillator eliminating external crystals, USB 2.0 with on-chip transceiver and clock-recovery, and 12 usable I/O pins. The QFN-16 (4x4) package with exposed thermal pad provides a compact footprint and good thermal dissipation for space-constrained designs. The architecture combines an enhanced mid-range CPU core running up to 48 MHz (with 4 clock cycles per instruction, yielding 12 MIPS) with 1 KB of SRAM, hardware USB SIE, configurable logic cells, and PWM/Signal-Routing peripherals. Program memory with self-read/write capability enables flexible firmware updates, while the high-endurance flash allows EEPROM-like byte-granular data storage without an external EEPROM chip. Typical applications include low-cost USB peripherals (HID, CDC, vendor-class), IoT sensor nodes powered from USB, consumer electronics with USB charging interfaces, and battery-powered embedded controllers. The wide 2.0V-5.5V operating range and low sleep current also suit portable and wearable designs. When designing with this MCU, reserve the exposed pad (EP) for a solid ground connection to maintain thermal and electrical performance, follow Microchip's USB layout guidelines for the D+/D- traces, and consider using the MPLAB Code Configurator (MCC) to generate USB stack code automatically. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not typically aggregated in a single manufacturer datasheet view.

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PIC16LF1454T-I/SL - 8-bit MCU 14KB Flash USB 48MHz SOIC-14 | Microchip
PIC16LF1454T-I/SL

PIC16LF1454T-I/SL - 8-bit MCU 14KB Flash USB 48MHz SOIC-14 | Microchip

The Microchip Technology PIC16LF1454T-I/SL is an 8-bit PIC microcontroller based on the enhanced mid-range PIC16 core, offering 14KB of Flash program memory in a 14-pin SOIC package. It operates from 1.8V to 3.6V, delivers up to 48MHz CPU performance through its 4 PLL multiplier on a 12MHz internal oscillator, and integrates a full-speed USB 2.0 device peripheral. The 'LF' prefix designates the low-voltage variant with extended eXtreme Low Power (XLP) sleep modes for battery-powered designs. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), data memory (RAM), and programmable peripherals into one IC. The PIC16LF1454 belongs to the 8-bit MCU family (PIC > PIC16 > PIC16F/LF14xxx), which occupies the lower tier of the PIC hierarchy below 16-bit dsPIC and 32-bit SAM devices. It is optimized for cost-sensitive and energy-constrained applications requiring USB connectivity without external transceivers. Key differentiating features of this part include: 14KB Flash (8K x 14 words), 1KB RAM, a 48MHz CPU clock derived from the internal 16MHz HFINTOSC, and on-chip USB 2.0 full-speed (12 Mbps) with integrated transceiver and 3.3V regulator. Additional peripherals include Enhanced Universal Synchronous/Asynchronous Receiver Transmitter (EUSART), Master Synchronous Serial Port (MSSP) for SPI and I2C, multiple PWM channels, a 10-bit ADC, and up to 12 programmable I/O pins with interrupt-on-change capability. The XLP technology drives typical WDT sleep current down to 600 nA. Architecturally, this device implements Microchip's enhanced mid-range 16-bit instruction set (49 instructions, 16-bit wide) executed from Flash at a single cycle per instruction (except branches), providing a 48MHz throughput of up to 12 MIPS. The USB module includes a dedicated 3.3V internal regulator that powers the internal USB transceiver from a higher VDD bus, removing the need for an external USB pull-up or transceiver IC. The 14-bit instruction word allows dense code storage: 14KB Flash holds 8K single-word instructions, sufficient for USB class firmware with HID or CDC profiles and full application logic. Typical applications include USB HID peripherals (keyboards, mice, custom input devices), USB-to-UART bridge dongles, low-cost data loggers with USB enumeration, consumer remote controls, sensor hubs exposed over USB, and battery-powered wearables exploiting XLP deep sleep. The part is also used in industrial USB isolator interfaces and educational prototyping boards such as Microchip's Low Pin Count USB Development Kit. When designing with this part, allocate the 14KB Flash across a USB stack (3-5 KB in Microchip's MLA or MCC framework) plus application code, leaving room for bootloader support. Place a 0.1uF ceramic bypass on VDD adjacent to the SOIC pin, and a 10uF bulk capacitor on the USB VBUS pin with proper ESD protection (USBLC6-2 or equivalent) on data lines to meet IEC 61000-4-2 requirements.

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PIC16LF1454T-I/ST - 14KB Flash 8-bit MCU USB 2.0 | Microchip
PIC16LF1454T-I/ST

PIC16LF1454T-I/ST - 14KB Flash 8-bit MCU USB 2.0 | Microchip

The Microchip Technology PIC16LF1454T-I/ST is an 8-bit PIC microcontroller from the PIC16F1454 family, featuring 14KB of Flash program memory, 512 bytes of RAM, and a 48 MHz internal oscillator in a 14-pin TSSOP package. Operating from 1.8V to 3.6V with nanoWatt XLP extreme low-power technology, it targets USB 2.0 full-speed device applications in space-constrained, battery-powered designs. According to Mouser's product summary, it integrates 12 I/O pins, a 10-bit ADC, and a USB 2.0 full-speed transceiver that supports USB device, host, and On-The-Go modes without an external crystal. The 'LF' prefix denotes the low-voltage F-variant, distinguishing it from the 2.0V-5.5V PIC16F1454. A PIC microcontroller (Programmable Interface Controller) is a family of 8-bit RISC microcontrollers from Microchip Technology built on a Harvard architecture with separate program and data buses. Microcontrollers integrate a CPU, non-volatile Flash memory, RAM, EEPROM, and peripherals (ADC, timers, communications, I/O) on a single die. The PIC16F1xxx family adds enhanced peripherals such as USB, capacitive touch sensing, and multiple communication interfaces to the legacy mid-range PIC16 core. Within Microchip's hierarchy, PIC16LF1454 sits in the mid-range 8-bit MCU tier below the PIC18 and dsPIC families, optimized for ultra-low-power and USB-enabled embedded designs. Key differentiating features include the integrated USB 2.0 full-speed transceiver (12 Mbps), which eliminates the need for external USB PHY components, and Microchip's nanoWatt XLP technology, which delivers sub-microamp sleep currents ideal for battery-backed or energy-harvesting applications. The device offers 7-channel 10-bit ADC, two PWM modules, I2C, SPI, and EUSART peripherals, plus an internal 48 MHz oscillator accurate to within +/-2% over the operating range. The 14-pin TSSOP package measures 4.4 mm wide and is rated for -40C to +85C industrial operation. From an architectural standpoint, the PIC16LF1454 uses Microchip's enhanced mid-range core with 49 instructions and a 16-level hardware stack. The integrated 3.3V LDO voltage regulator on the VUSB pin can supply up to 200 mA to external circuitry when USB bus power is present, simplifying USB-powered designs. The device supports in-circuit serial programming (ICSP) via two pins, enabling in-field firmware updates without removing the MCU from the board. Typical applications include USB human-interface devices (HID keyboards, mice, game controllers), USB-to-UART bridge dongles, low-power sensor nodes with USB diagnostics, and consumer peripherals such as programmable LEDs and cable adapters. The combination of USB 2.0, XLP sleep modes, and 14-pin TSSOP footprint also makes it well-suited for medical and industrial accessories where board area is constrained. When designing with this device, note that the USB D+/D- pins are shared with general-purpose I/O, so PCB layout must keep the USB differential pair impedance-controlled (90 ohm differential) and route it as close to the connector as possible. The internal voltage regulator on VUSB requires a 1uF decoupling capacitor; omitting it causes USB enumeration failures on some hosts. Industrial-grade temperature parts (-40C to +85C) carry the 'I' suffix, and tape-and-reel packaging adds the 'T' suffix as in this MPN. This page synthesizes distributor pricing across DigiKey, Mouser, LCSC, and Heisener, drop-in alternatives from the PIC16F1454 family, and practical design notes not found in the manufacturer datasheet summary. Cross-brand drop-in equivalents are limited because the integrated USB 2.0 transceiver in this footprint is unique to Microchip's PIC16F145x series.

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PIC16LF1455-E/JQ - 8-bit MCU 14KB Flash USB 2.0 | Microchip
PIC16LF1455-E/JQ

PIC16LF1455-E/JQ - 8-bit MCU 14KB Flash USB 2.0 | Microchip

The Microchip PIC16LF1455-E/JQ is an 8-bit PIC® XLP™ microcontroller running at up to 48 MHz with 14 KB Flash, 1024 B RAM, an integrated USB 2.0 full-speed transceiver, and a CIP (Core Independent Peripheral) mix, housed in a 16-pin UQFN (4 x 4 mm) package with extended -40 °C to +125 °C temperature range. An 8-bit microcontroller (MCU) is a small, low-power programmable processor that integrates CPU, Flash program memory, SRAM, peripherals, and I/O on a single die. The PIC16F family uses a 14-bit modified Harvard RISC instruction set and sits in the broader hierarchy: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. The "LF" prefix designates an extended-voltage variant (2.5 V - 5.5 V) optimized for battery-powered operation, while "XLP" denotes Microchip's eXtreme Low Power platform featuring nanoWatt XLP technology with < 1 µA typical sleep currents. Key features include 14 KB (8 K x 14) self-programmable Flash, 1024 B SRAM, 256 B EEPROM, a 10-bit ADC with up to 9 channels, two PWM modules, an enhanced USART, an MSSP (I2C/SPI) module, and a USB 2.0 full-speed transceiver that supports both HID and CDC classes without an external crystal. The on-chip 3.3 V regulator allows single-supply operation directly from a 5 V rail when the internal regulator is enabled. The architecture pairs a deterministic RISC core with hardware CIPs such as CWG (Complementary Waveform Generator), DSM (Data Signal Modulator), and NCO (Numerically Controlled Oscillator). These offload timing-critical tasks from the CPU, enabling deterministic motor control, lighting, and USB bridging at very low average power, and they remove the firmware overhead that typically limits 8-bit designs. Typical applications include USB HID peripherals (keyboards, mice, custom input devices), CDC virtual COM ports, USB-to-UART bridges, USB Li-Ion battery chargers, small sensor hubs, consumer toys, and low-cost USB dongles. The wide -40 °C to +125 °C range also suits industrial sensor front-ends and automotive cabin accessories. When designing with this device, place the USB D+/D- traces as a 90-ohm differential pair with no stubs, and provide a 10 µF bulk capacitor plus 0.1 µF decoupling within 2 mm of the VDD pin. The ICSP/ICD pins are shared with USB; plan for either programming access or USB D+/D- on the same pads. This page synthesizes verified distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC16LF1455-E/ML - 8-bit 48MHz XLP MCU 14KB Flash | Microchip
PIC16LF1455-E/ML

PIC16LF1455-E/ML - 8-bit 48MHz XLP MCU 14KB Flash | Microchip

The Microchip Technology PIC16LF1455-E/ML is an 8-bit PIC microcontroller from the PIC XLP 16F family, featuring a 48MHz CPU core, 14KB (8K x 14) of Flash program memory, 1024 bytes of RAM, and 12 I/O pins, all packaged in a 16-pin QFN (4x4 mm) with an exposed thermal pad. What is an 8-bit microcontroller? An 8-bit MCU is a small computer-on-a-chip built around an 8-bit data path that fetches, decodes, and executes instructions from on-chip Flash memory. In the broader taxonomy, the PIC16LF1455 sits below 16-bit dsPIC and 32-bit ARM Cortex-M devices, but offers lower cost, simpler toolchains (MPLAB X IDE + XC8 compiler), and ultra-low-power operation. The "LF" suffix denotes an extended voltage operating range down to 1.8V, making this part suitable for battery-powered and energy-harvesting designs. Key features include the XLP (eXtreme Low Power) technology with nanoWatt sleep currents typically below 20 nA in sleep mode, integrated full-speed USB 2.0 Device/Host/OTG support, a 10-bit ADC with up to 9 channels, two 8-bit timers and one 16-bit timer, enhanced PWM with up to 4 channels, and a configurable logic cell (CLC) peripheral. The 48MHz internal oscillator eliminates the need for an external crystal in many designs, reducing BOM cost and PCB area. The architecture uses Microchip's enhanced mid-range 16F core with a 14-bit instruction word and a single-cycle hardware multiplier, supporting C and assembly development. The integrated USB 2.0 full-speed transceiver is a distinctive feature: most 8-bit MCUs in this package class require an external USB PHY, but the PIC16LF1455 includes the transceiver on-die, allowing direct USB connectivity at BOM costs approaching non-USB PIC16F parts. Typical applications include USB human-interface devices (HID keyboards, mice, game controllers), USB-to-UART bridges, LED lighting controllers with DMX or USB control, capacitive-touch user interfaces, low-power sensor hubs, and consumer accessories. The 16-QFN 4x4 mm footprint enables compact wearable and IoT form factors. When designing with this part, note that the exposed pad (EP) on the QFN package must be soldered to the PCB ground plane for thermal dissipation and electrical performance. Decoupling capacitors (100 nF + 1 uF) should be placed within 3 mm of the VDD pin, and the USB DP/DM traces require 90 ohm differential impedance matching per USB 2.0 specification. This page synthesizes distributor pricing, drop-in alternatives within the PIC16F145x family, and practical design notes not found in the manufacturer datasheet alone.

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PIC16LF1455-E/SL - 8-bit 48MHz MCU, 14KB Flash, USB | Microchip
PIC16LF1455-E/SL

PIC16LF1455-E/SL - 8-bit 48MHz MCU, 14KB Flash, USB | Microchip

The Microchip Technology PIC16LF1455-E/SL is an 8-bit PIC microcontroller from the PIC XLP 16F family, delivering 48 MHz core performance with 14 KB (8K x 14 words) of Flash program memory in a 14-pin SOIC (SL) package. According to distributor listings, the LF variant operates from 1.8 V to 3.6 V, targeting ultra-low-power applications with eXtreme Low Power (XLP) technology, and includes a 1024-byte SRAM data store. The device integrates a full-speed USB 2.0 transceiver with on-chip pull-up resistors and a clock recovery circuit, eliminating the need for an external crystal for USB operation, alongside 12 I/O pins arranged for mixed analog and digital use. A microcontroller (MCU) is a single-chip computer integrating a CPU, program memory (Flash), working memory (RAM), peripherals, and I/O lines. The 8-bit class optimizes for low cost, low power, and deterministic interrupt response over raw compute throughput, sitting in the taxonomy as: microcontroller -> embedded processor -> semiconductor. PIC16F1xxx devices use a 14-bit modified Harvard instruction set and feature the enhanced mid-range core, providing C-compiler-friendly architecture with linear memory access for higher code density than legacy baseline PIC cores. Key features include a 48 MHz internal oscillator with 1% accuracy after USB tuning, a 5-bit DAC and 10-bit ADC with computation, multiple communication peripherals (I2C, SPI, EUSART), and two PWM modules with complementary outputs. The part is offered with 1 KByte SRAM, 256 bytes of EEPROM, and a 32 kHz LP oscillator for RTC mode. The nanoWatt XLP technology enables sleep currents down to sub-microampere levels, making it well-suited for battery-powered USB HID devices, wearable peripherals, and always-on sensor nodes. The architecture uses a two-stage pipeline with hardware multiply support and a peripheral pin select (PPS) system that allows flexible remapping of digital peripherals to physical I/O pins. This reduces PCB layout constraints for compact USB dongles and embedded accessories. CIP (Core Independent Peripherals) such as the CWG, NCO, and PWM modules enable complex timing and waveform synthesis without CPU intervention, further reducing active-mode power. Typical applications include USB Human Interface Devices (HID keyboards, mice, game controllers), USB-to-UART bridges, low-cost logic analyzers, consumer electronics remote controls, and portable medical sensors. The wide operating voltage range also supports coin-cell-powered designs such as wireless key fobs and BLE beacon firmware. The internal USB regulator and transceiver allow direct 5 V VBUS connection with proper external protection. When designing with this part, ensure that the USB DP/DM traces are length-matched within 50 mils and routed over a continuous ground plane for impedance control. A 1 microfarad decoupling capacitor must be placed within 2 mm of VDD, and unused I/O pins must be configured as outputs low to minimize sleep current. Programming is supported via ICSP with the MPLAB X IDE and PICkit 3/4 tools.

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PIC16LF1455-E/ST - 14KB Flash 48MHz USB MCU | Microchip TSSOP-14
PIC16LF1455-E/ST

PIC16LF1455-E/ST - 14KB Flash 48MHz USB MCU | Microchip TSSOP-14

The Microchip Technology PIC16LF1455-E/ST is an 8-bit PIC microcontroller from the PIC16F family with 14 KB of Flash program memory and 1024 bytes of RAM, housed in a 14-pin TSSOP package. It operates up to 48 MHz, supports a wide 1.8V to 5.5V supply range suited for battery-powered designs, and integrates a full-speed USB 2.0 transceiver plus a 5-bit DAC and multiple PWM/timer peripherals. A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (Flash), volatile data memory (RAM), and configurable peripheral blocks such as timers, ADC, communication interfaces, and GPIO. Within the broader category hierarchy, the PIC16LF1455 sits at: PIC16F family -> 8-bit PIC microcontrollers -> microcontrollers -> microcontrollers (MCU) -> embedded controllers -> semiconductors. The XLP (eXtreme Low Power) designation indicates Microchip's nanoWatt XLP technology family engineered for sleep currents below 1 µA in many modes, enabling years of battery life on coin cells. Key features include 14 KB (8K x 14) self-programmable Flash, 1024 bytes RAM, an integrated USB 2.0 full-speed transceiver, two 10-bit ADC modules with up to 12 analog channels, dual PWM modules, and a configurable 5-bit DAC reference. The 48 MHz internal oscillator eliminates external crystals for many designs, reducing BOM cost and PCB area. The industrial -40 °C to +125 °C operating range supports harsh-environment deployment. Architecturally, the PIC16LF1455 uses a 14-bit modified Harvard RISC core with single-cycle instructions (except branches), executed in two clock cycles through a four-phase pipeline. The integrated USB PHY simplifies USB device development by removing external transceiver components. The CIP (Core Independent Peripheral) set - including CWG, NCO, and CLC - allows hardware-state-machine tasks without CPU intervention, freeing the core for higher-level logic. Typical applications include USB HID peripherals (keyboards, mice, custom input devices), low-power sensor nodes, consumer IR remote controls, capacitive-touch user interfaces via the mTouch peripheral, small home appliances, and battery-powered IoT edge nodes. The wide voltage range and XLP sleep modes make the part particularly attractive for energy-harvesting and wireless-sensor applications. When designing with the PIC16LF1455, ensure the VUSB 3.3V regulator output is correctly bypassed with the recommended 0.47 µF capacitor per the Microchip datasheet; USB signal integrity requires the standard 90 Ω differential D+/D- impedance. For non-USB designs, the RA0/RA1 pins can be repurposed but never as analog inputs while the FVR is enabled in modes that conflict with the DAC reference. This page synthesizes distributor pricing, drop-in alternative MPNs from the same PIC16F 14-pin TSSOP family, and practical USB-related design notes not found on a single distributor listing.

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PIC16LF1455-I/ML - 8-bit MCU, 14KB Flash, USB, 16-QFN | Microchip
PIC16LF1455-I/ML

PIC16LF1455-I/ML - 8-bit MCU, 14KB Flash, USB, 16-QFN | Microchip

The Microchip Technology PIC16LF1455-I/ML is an 8-bit PIC microcontroller featuring 14KB Flash program memory, 1024 bytes of RAM, and a 48 MHz internal oscillator, housed in a 16-pin QFN (4x4 mm) package with exposed thermal pad. It belongs to the PIC16F family and integrates a full-speed USB 2.0 transceiver, making it one of the smallest PIC MCUs with native USB connectivity. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data bus and a RISC instruction set. The PIC16LF1455 sits within the hierarchy: PIC16F MCU -> 8-bit microcontroller -> microcontroller -> embedded processor -> semiconductor device. The "LF" suffix indicates the low-power eXtreme Low Power (XLP) variant designed for battery-powered applications with deep-sleep currents in the microamp range. Key features include 14KB (8K x 14 words) Flash program memory, 1024 bytes SRAM, 256 bytes EEPROM, 12 I/O pins, and integrated USB 2.0 full-speed transceiver with on-chip pull-up resistor. The device supports 1.8V to 3.6V operating voltage, has a 10-bit ADC with up to 9 channels, two 8-bit timers, and two 16-bit timers. The 16-QFN package with exposed pad provides excellent thermal performance and a compact 4x4 mm footprint ideal for space-constrained designs. The PIC16LF1455 uses a 14-bit instruction word RISC architecture with 49 instructions, single-cycle execution except for program branches, and a hardware stack for subroutine handling. The integrated USB module eliminates the need for external transceivers, reducing BOM cost and PCB area. The nanoWatt XLP technology enables sleep currents below 1 uA, extending battery life in USB HID, sensor, and IoT applications. Typical applications include USB HID peripherals (keyboards, mice, custom input devices), USB-to-UART bridge dongles, low-power sensor nodes with USB diagnostic port, capacitive touch interfaces with USB, and USB charging controllers. The combination of USB, low power, and small package makes it well-suited for accessories that require cable connectivity but minimal PCB area. When designing with this device, note that the 16-QFN package requires careful PCB layout with proper thermal pad soldering for reliable operation. The internal 48 MHz oscillator eliminates the need for an external crystal in most USB applications, though a crystal may be required for high-precision timing. The ICSP pins are multiplexed with USB D-/D+ lines, requiring design care during programming. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, providing actionable guidance for hardware engineers evaluating the PIC16LF1455-I/ML for embedded USB designs.

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