Microcontroladores

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PIC16LCE624T-04/SS - 8-Bit 4MHz OTP MCU w/ EEPROM | Microchip
PIC16LCE624T-04/SS

PIC16LCE624T-04/SS - 8-Bit 4MHz OTP MCU w/ EEPROM | Microchip

The Microchip Technology PIC16LCE624T-04/SS is an 8-bit PIC16 microcontroller from the PIC® 16C family, featuring 1.75KB (1K x 14) of One-Time Programmable (OTP) program memory, 96 bytes of RAM, and 128 bytes of EEPROM data memory, housed in a 20-pin SSOP surface-mount package. It operates from a 2V to 6V supply and supports a maximum clock speed of 4 MHz with a 200 ns instruction cycle, and is tape-and-reel packaged for high-volume assembly. An 8-bit microcontroller (MCU) is a programmable system-on-a-chip that integrates a CPU, non-volatile program memory, working RAM, and a configurable set of peripheral interfaces (I/O, timers, ADC, comparators, communication ports) into a single IC. Within the broader hierarchy, PIC16LCE624T-04/SS belongs to the 8-bit MCU class -> RISC microcontroller -> embedded controller -> semiconductor IC. Its OTP program memory and integrated EEPROM data memory place it in the classic "low-power control MCU" category used for cost-sensitive, code-stable embedded designs. Key differentiating specifications include 12 (industrial part number says 13) programmable digital I/O pins, integrated Brown-out Detect (BOD), Power-On Reset (POR), and a Watchdog Timer (WDT) for reliable operation. The device uses an external oscillator input and ships with the standard PIC 16C instruction set of 35 single-cycle instructions (except program branches which are two-cycle), enabling deterministic real-time response in control loops. The "L" in the part number denotes the low-voltage (2.0V to 6.0V) operating range, and the "04" denotes a 4 MHz maximum clock input. Typical applications include appliance control modules, HVAC remote panels, security sensor interfaces, low-power sensor conditioning, simple closed-loop fan or pump controllers, and battery-powered handheld instruments where code stability (OTP) is acceptable and the integrated EEPROM is leveraged for user-configurable parameters. It is also commonly seen in legacy industrial replacement boards. When designing with this part, treat the OTP memory as one-time-programmable - firmware bugs cannot be field-updated without device replacement. The integrated EEPROM is suitable for parameters that must survive power cycles but change occasionally, such as calibration or trim values. This page synthesizes verified distributor pricing (as of 2026-09-22), drop-in Microchip family alternatives in the same 20-SSOP footprint, and practical design considerations not summarized in the brief marketing datasheet excerpts.

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PIC16LCE624T-04E/SO - 4MHz 8-Bit OTP MCU, 1.75KB | Microchip
PIC16LCE624T-04E/SO

PIC16LCE624T-04E/SO - 4MHz 8-Bit OTP MCU, 1.75KB | Microchip

The Microchip Technology PIC16LCE624T-04E/SO is an 8-bit PIC microcontroller from the PIC16C family, featuring a 4MHz CPU core, 1.75KB (1K x 14) of One-Time Programmable (OTP) program memory, 96 bytes of RAM, and 13 I/O pins, all housed in an 18-pin SOIC (300 mil) wide-body surface-mount package. It operates from a 3.3V/5V supply and offers 35 single-cycle instructions (200ns), making it well suited for cost-sensitive embedded control in legacy and industrial designs. A PIC (Peripheral Interface Controller) microcontroller is a compact integrated circuit combining an 8/16/32-bit CPU core, non-volatile program memory (Flash/ROM/OTP), volatile data RAM, and configurable digital/analog peripherals on a single silicon die. PIC microcontrollers form part of the broader microcontrollers > microprocessors > integrated circuits > semiconductors taxonomy, and have been a foundational MCU architecture since the 1980s for low-power, deterministic embedded control. Key features of the PIC16LCE624T-04E/SO include 4MHz maximum operating frequency (200ns instruction cycle), 1024 x 14 bits of OTP program memory, 96 x 8 bytes of SRAM, a precision internal oscillator option, an on-chip analog comparator, and a watchdog timer with its own on-chip RC oscillator for reliable operation. The 8-bit RISC-like core provides 35 single-word instructions, simplifying code development and reducing overall firmware footprint compared to CISC MCUs. Technically, the device operates at 4MHz (industry standard for low-power industrial controllers), uses an external or internal oscillator, and includes brown-out detection for reliable power-on behavior. The 'LC' prefix designates the extended commercial temperature range (-40°C to +125°C) with the lower-voltage process node, while 'E' indicates the OTP windowless package variant. Typical applications include low-cost consumer electronics, industrial sensor interfaces, simple motor control, security alarm panels, and legacy automotive subsystems where cost-sensitive reliable control is critical. The 18-pin SOIC package also supports well hand-soldering and rework for low-volume production runs. When designing with this device, place a 0.1uF decoupling capacitor close to VDD and ensure the MCLR reset pin is properly pulled up. The OTP memory cannot be erased or rewritten, so firmware must be fully validated before programming - consider PIC16F or PIC16LF Flash variants (e.g., PIC16F716-I/SO) for development or field-updateable firmware. This page synthesizes distributor pricing, drop-in Microchip PIC16 family alternatives, and practical design notes not found in the manufacturer datasheet. Engineers can compare 5+ drop-in alternatives, all in the 18-SOIC footprint.

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PIC16LCE624T-04E/SS - 8-Bit 4MHz OTP MCU 1.75KB | Microchip
PIC16LCE624T-04E/SS

PIC16LCE624T-04E/SS - 8-Bit 4MHz OTP MCU 1.75KB | Microchip

The Microchip Technology PIC16LCE624T-04E/SS is an 8-bit RISC microcontroller from the PIC16C family, featuring 1.75KB (1K x 14) of One-Time Programmable (OTP) program memory, 96 bytes of RAM, and 128 bytes of EEPROM data memory in a 20-pin SSOP package. It operates at up to 4MHz clock speed with a 200ns single-cycle instruction execution and is offered in a tape-and-reel shipping format. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (program + data), and peripherals onto one silicon die. Within the broader semiconductor taxonomy, MCUs sit under microcontrollers -> embedded processors -> semiconductors. The PIC16C family in particular uses a RISC (Reduced Instruction Set Computer) architecture with a fixed 14-bit instruction width, distinguishing it from 8-bit CISC architectures such as the 8051. The "L" prefix denotes the low-voltage (2.5V to 5.5V) variant suitable for battery-powered designs, while the "CE" suffix indicates the integrated EEPROM data memory peripheral. Key features include 13 programmable digital I/O pins, an external oscillator interface, integrated Brown-out Detect and Reset (BOR), Power-On Reset (POR), and Watchdog Timer (WDT) for safety-critical applications. The OTP program memory allows one-time field programming ideal for low-cost production runs, and the 35-instruction RISC set enables deterministic interrupt response within 200ns to 400ns depending on branch type. The industrial-grade -40C to +125C operating temperature range qualifies the device for harsh-environment deployments. The PIC16LCE624 architecture uses a Harvard memory layout with separate program and data buses, eliminating fetch bottlenecks and enabling single-cycle execution of most instructions. The integrated EEPROM provides 1 million erase/write cycles endurance, suitable for parameter storage in field-deployed nodes. Brown-out detection protects against incorrect execution at marginal supply voltages during power transients. Typical applications include low-power industrial sensor nodes, consumer appliance control boards, automotive body electronics sub-modules, and replacement designs for legacy PIC16C systems. The 20-SSOP package offers a compact 5.30mm body width suitable for high-density PCB layouts. Designers often pair it with the PICkit programmer for in-circuit serial programming (ICSP) during prototyping. When designing with this part, ensure the VDD rail stays within 2.5V to 5.5V and respect the 4MHz maximum clock input. Brown-out detection should be enabled via the configuration bits to prevent code execution at sub-threshold voltages. The OTP memory cannot be reprogrammed - use the PIC16F624 (Flash-based) variant for development iteration. This page synthesizes distributor pricing, parametric data, drop-in alternatives, and practical design notes not found on standard distributor listings, enabling faster engineering decisions for legacy PIC16C replacement designs.

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PIC16LCE624T-04I/SS - 4MHz 8-bit OTP MCU, 1.75KB Flash | Microchip
PIC16LCE624T-04I/SS

PIC16LCE624T-04I/SS - 4MHz 8-bit OTP MCU, 1.75KB Flash | Microchip

The Microchip PIC16LCE624T-04I/SS is an 8-bit PIC microcontroller from the PIC® 16C family, delivering 4 MHz CPU performance with 1.75 KB (1K x 14) of One-Time Programmable (OTP) program memory, 96 bytes of RAM, and 128 bytes of EEPROM data memory in a 20-pin SSOP package. The device targets low-power embedded control with an industrial temperature range of -40°C to +85°C and supports 13 programmable I/O pins for digital interfacing. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (program + RAM + non-volatile data), and programmable I/O peripherals on one die. The PIC16CE62X family sits at the entry level of the PIC16 mid-range 8-bit architecture hierarchy (PIC10/12/16/18) and is commonly used for cost-sensitive control tasks where deterministic instruction execution and low BOM cost matter more than raw compute throughput. The "LC" prefix denotes a 3.0V-5.5V wide-range supply variant suitable for battery-backed designs. Key features include Brown-out Detect/Reset (BOR), Power-On Reset (POR), and a Watchdog Timer (WDT) for reliable field operation. The 13 I/O pins share the SSOP-20 footprint used across the PIC16CE623/624/625 family, allowing simplified PCB reuse when memory size is the only design variable. The OTP program memory is one-time writeable, which means firmware is committed at production programming time and cannot be field-updated - a different cost profile from Flash-based PIC16F devices. Architecturally, the PIC16LCE624 uses Microchip's 14-bit RISC instruction set with a Harvard-style separate program and data bus. The EEPROM data memory (128 bytes) supports byte-level in-application write/read for parameter storage. External oscillator configurations (XT, HS, LP, RC) are user-selectable via configuration bits, and the internal 4 MHz RC oscillator reduces external component count for cost-sensitive designs. Typical applications include appliance control (white goods, HVAC actuators), low-end sensor signal conditioning, simple motor and relay drivers, automotive body electronics (non-safety subsystems), smart metering peripherals, and battery-powered remote controls. The wide VDD range supports both 3.3V and 5V logic domains, and the SSOP-20 package allows reflow soldering on standard SMT lines. When designing with the PIC16LCE624, plan firmware versioning carefully: because the program memory is OTP, any firmware bug discovered after programming requires a new silicon lot. Maintain sufficient decoupling (100 nF + 10 µF) close to VDD/VSS and route the MCLR pin per Microchip application note guidelines to avoid spurious resets during in-circuit programming. This page synthesizes verified distributor pricing as of 2026-09-22, drop-in replacement candidates in the same SSOP-20 footprint, and practical design notes for engineers sourcing the PIC16LCE624T-04I/SS for new designs or legacy board production.

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PIC16LCE625-04/P - 3.5KB OTP 8-bit MCU, 4MHz, 18-PDIP | Microchip
PIC16LCE625-04/P

PIC16LCE625-04/P - 3.5KB OTP 8-bit MCU, 4MHz, 18-PDIP | Microchip

The Microchip Technology PIC16LCE625-04/P is an 8-bit RISC PIC microcontroller in the PIC16C family with 3.5KB (2K x 14) OTP program memory, 128 bytes of RAM, and 13 digital I/O pins, housed in a through-hole 18-pin PDIP package. The "LCE" suffix indicates a low-power CMOS variant operating from 2.5V to 5.5V with the "04" speed grade offering a 4 MHz maximum clock. The device is part of the legacy PIC16C6x mid-range family, designed for embedded control applications requiring compact code, low power, and robust I/O. A PIC microcontroller is a programmable single-chip computer built around a Harvard architecture with separate program and data buses, optimized for deterministic real-time control. Within the broader taxonomy, the PIC16C62x belongs to the mid-range PIC16 family, which sits between the baseline PIC10/12/16/17 families and the enhanced PIC18 family. It integrates CPU core, Flash/OTP program memory, RAM, EEPROM data memory, and peripherals (timers, A/D, USART, comparators) on a single die, and is programmed using Microchip's MPLAB X toolchain with XC8 C compiler support. Key features of the PIC16LCE625-04/P include 13 bidirectional I/O pins capable of 25 mA source/sink, an enhanced 8-bit A/D converter, two 8-bit timers plus one 16-bit timer, a watchdog timer with on-chip RC oscillator, and an internal 4 MHz RC oscillator option that eliminates the external crystal in many designs. The device supports in-circuit serial programming (ICSP) via two pins, allowing firmware updates after PCB assembly. Brown-out reset, power-on reset, and a wide commercial operating temperature range ensure reliable field operation. Typical applications include appliance control, sensor signal conditioning, low-speed serial communication bridges, and battery-powered instrumentation. The combination of OTP memory (one-time programmable, lower unit cost than Flash) and through-hole PDIP packaging makes this part especially suitable for hobbyist projects, educational kits, and legacy industrial controllers. For new designs, Microchip recommends the pin-compatible PIC16F family Flash parts, but the PIC16LCE625-04/P remains widely stocked for maintenance of existing installations. When designing with this part, engineers should provide adequate bulk decoupling (100 nF plus 10 uF near VDD) and route the MCLR reset pin with proper pull-up. For low-power designs, the LP oscillator mode reduces current consumption to microamps in sleep mode. Engineers should also note that OTP memory cannot be erased or rewritten, so a Flash equivalent (such as PIC16F628A in the same 18-pin DIP footprint) is preferable for prototype and low-volume development. This page synthesizes distributor pricing, pin-compatible drop-in alternatives (both same-brand Microchip variants and competitor equivalents in 18-PDIP), and practical design notes drawn from the Microchip PIC16C62x datasheet family, providing information not consolidated on any single distributor or manufacturer page.

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PIC16LCE625-04/SO - 8-bit MCU, 4MHz, 3.5KB OTP, 18-SOIC | Microchip
PIC16LCE625-04/SO

PIC16LCE625-04/SO - 8-bit MCU, 4MHz, 3.5KB OTP, 18-SOIC | Microchip

The Microchip Technology PIC16LCE625-04/SO is an 8-bit CMOS RISC microcontroller from the PIC16C family, featuring 3.5KB (2K x 14) of One-Time Programmable (OTP) program memory, 128 bytes of data RAM, and 128 bytes of EEPROM, all housed in an 18-pin SOIC (Small Outline Integrated Circuit) package. It operates at a maximum clock frequency of 4MHz from a 2.5V-5.5V low-voltage supply and provides 13 digital I/O pins suitable for general-purpose embedded control. An 8-bit microcontroller (MCU) is a small computer-on-a-chip that integrates a CPU, program memory, data RAM, and peripherals (timers, ADC, I/O, communication interfaces) into a single IC. Microcontrollers sit within the broader hierarchy of embedded processors -> microcontrollers -> 8-bit MCUs -> PIC16 family, and they form the lowest-cost, lowest-power tier of programmable logic used in consumer appliances, industrial sensors, and battery-powered IoT nodes. The PIC16C core uses a Harvard RISC architecture with a 14-bit instruction word, which keeps code density high and instruction cycles deterministic at 4 clock ticks per instruction. Key features of the PIC16LCE625-04/SO include the 3.5KB OTP program memory for one-time-only firmware storage, an internal comparator for analog signal conditioning, a 5-channel 8-bit ADC, and a capture/compare/PWM (CCP) module. Its low-voltage 'LC' family designation supports extended operation down to 2.5V, and the 'E' in the variant suffix indicates an enhanced EEPROM. The device includes a watchdog timer, power-on reset, and brown-out reset for robust embedded operation. The 18-SOIC package provides a 7.50 mm body width suitable for hand-soldering and standard 1.27 mm pitch SOIC footprints. Architecturally, the PIC16LCE625 uses a 14-bit program-word width with separate data and program buses (Harvard architecture), enabling simultaneous fetch and access of operands. The OTP memory cell is a one-time-only programmable EPROM cell, which historically made this part economical for low-volume production but unsuited to field upgrades. For designs that require re-programmability, Microchip offers flash-based PIC16F equivalents in the same 18-pin SOIC package family. Typical applications include low-cost consumer electronics, appliance controllers, sensor signal conditioning, battery-powered measurement instruments, and industrial control boards. The 13 I/O pins and integrated ADC make it suitable for reading a few analog sensors and driving a small display or relay outputs. When designing with this device, plan the firmware to fit within 2K 14-bit words (about 2048 instructions), select the internal 4MHz RC oscillator to minimize external component count, and ensure the EEPROM endurance budget (typically 1M write cycles) is respected for any parameter storage. For new designs, evaluate flash-based PIC16F alternatives that drop into the same 18-SOIC footprint and provide re-programmability and in-circuit debugging via ICSP. This page synthesizes distributor pricing, drop-in compatible same-package alternatives, and practical design notes for the PIC16LCE625-04/SO that go beyond the manufacturer datasheet and major distributor listings.

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PIC16LCE625-04/SS - 8-bit MCU, 3.5KB OTP, 4MHz, SSOP-20 | Microchip
PIC16LCE625-04/SS

PIC16LCE625-04/SS - 8-bit MCU, 3.5KB OTP, 4MHz, SSOP-20 | Microchip

The Microchip Technology PIC16LCE625-04/SS is an 8-bit RISC microcontroller from the PIC® 16C family, featuring 3.5 KB of OTP program memory, 128 bytes of RAM, and 13 general-purpose I/O lines. The "-04" speed grade designates a 4 MHz maximum clock frequency, while the "LCE" prefix indicates a low-voltage, commercial-temperature variant operating from 2.0 V to 6.0 V. The part is housed in a 20-pin SSOP (Shrink Small Outline Package) with 0.65 mm pitch, suited for surface-mount assembly on compact boards. A microcontroller (MCU) is a single-chip computer that integrates processor core, program memory, RAM, and peripherals into one device. The PIC16C series uses a Harvard RISC architecture with a 14-bit instruction word, optimized for deterministic execution in embedded control applications. Within the broader semiconductor taxonomy, an 8-bit MCU falls under integrated circuits > microcontrollers, and the PIC16CE6xx sub-family is positioned as a low-power, OTP-programmable generation predating the flash-based PIC16Fxxx families. Key differentiating features include two on-chip analog comparators, a Brown-Out Detect (BOD) circuit, Power-On Reset (POR), a Watchdog Timer (WDT) for reliable operation, and an EPROM/OTP program memory that supports one-time programming at production volume. The 13 I/O pins can each be individually configured for digital input or output, and the architecture supports interrupt-driven control with low-cost external components. This part operates across the commercial 0°C to +70°C temperature range with a 4 MHz oscillator. Designers value the PIC16CE625's combination of low-voltage operation, integrated analog comparators, and the deterministic instruction set, which together reduce BOM cost and PCB footprint in simple control loops. Typical applications include appliance control panels, low-power sensor interfaces, security peripherals, small consumer devices, and battery-powered instrumentation. For designs migrating to flash-based parts, the PIC16F676 is a near-pin-compatible drop-in successor with the same SSOP-20 footprint and 10-bit ADC instead of comparators. When designing with this OTP MCU, plan firmware and code patterns carefully before wafer/board commitment, since OTP does not permit field updates. Add a low-VDD detection window via the BOD threshold and reserve a debug/test pad on RA0/TOCKI for in-circuit calibration.

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PIC16LCE625-04E/P - 8-Bit 4MHz OTP MCU, 13 I/O | Microchip
PIC16LCE625-04E/P

PIC16LCE625-04E/P - 8-Bit 4MHz OTP MCU, 13 I/O | Microchip

The Microchip Technology PIC16LCE625-04E/P is an 8-bit PIC microcontroller IC from the PIC 16C family, featuring a 4MHz maximum clock, 3.5KB (2K x 14) of One-Time-Programmable (OTP) program memory, 128 bytes of RAM, and 128 bytes of EEPROM data storage, housed in an 18-pin PDIP through-hole package. Operating from 2.5V to 5.5V, this LC-prefixed variant targets low-voltage, low-power embedded designs. The device exposes 13 digital I/O pins and integrates a 10-bit ADC, two analog comparators, a watchdog timer, and a single 8-bit timer/counter. A microcontroller (MCU) is a single-chip computer containing a CPU, memory (program + data), and peripherals such as timers, ADC, communication interfaces, and I/O. Within the embedded hierarchy, the PIC16LCE625 sits at the low-power, mid-range 8-bit tier of Microchip's PIC family, below the enhanced 16-bit PIC24/dsPIC families and above simple 6/8-pin baseline devices. It is suited for compact, cost-sensitive applications that require non-volatile program storage with moderate peripheral integration. Key differentiating features include a 35-instruction RISC architecture with 200ns single-cycle execution (except branches, which take two cycles), an internal/external oscillator option, and an in-circuit serial programming (ICSP) interface for OTP programming. The LC voltage range and built-in EEPROM enable portable battery-powered designs that must retain user-configurable parameters across power cycles without external non-volatile memory. Brown-out reset and power-on reset provide reliable startup in noisy industrial environments. Typical applications include low-power sensor conditioning boards, automotive body controllers, industrial control front-ends, appliance user-interface modules, and remote sensor nodes. The 13 I/O pins plus analog comparators make it especially well-suited for threshold-detection circuits and signal-front-end conditioning with software-driven post-processing. When designing with this part, ensure the OTP programming step is performed before final PCB assembly for cost reasons - OTP devices cannot be reprogrammed. Choose an F-series PIC16F equivalent (such as PIC16F630) if Flash reprogrammability is required during prototyping; F-series parts share the same pinout but add ICSP and Flash memory at higher unit cost. This page synthesizes distributor pricing, same-family drop-in alternatives, parametric comparison, and practical design notes beyond what is found in the manufacturer datasheet alone.

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PIC16LCE625-04E/SO - 8-Bit 4MHz OTP MCU, 3.5KB | Microchip
PIC16LCE625-04E/SO

PIC16LCE625-04E/SO - 8-Bit 4MHz OTP MCU, 3.5KB | Microchip

The Microchip Technology PIC16LCE625-04E/SO is an 8-bit PIC16C-series microcontroller built on a RISC architecture with 35 single-cycle instructions, operating at 4 MHz from a 3.0 V to 5.5 V supply. The device integrates 3.5 KB (2K x 14) of One-Time Programmable (OTP) program memory, 128 bytes of data RAM, and 128 bytes of EEPROM data memory inside an 18-pin SOIC package. According to the Verified Web Data, the part exposes 13 general-purpose digital I/O pins, supports external oscillator inputs, and executes instructions in 200 ns (200 ns branch penalty of two cycles). A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, I/O peripherals, and often non-volatile data storage. The PIC16C family uses a Harvard architecture with separate program and data buses, enabling single-cycle instruction execution and deterministic interrupt latency. Within the broader taxonomy, the PIC16LCE625 sits in the PIC microcontroller -> 8-bit MCU -> microcontroller -> embedded processor -> semiconductor hierarchy, targeting cost-sensitive embedded control rather than high-throughput signal processing. Key features include ultra-low-power "LC" operation across the 2.5 V to 5.5 V range, an internal watchdog timer, power-on reset, brown-out detection, and a capture/compare/PWM (CCP) peripheral. The 'E' suffix designates the Extended commercial temperature range of -40C to +125C, while '04' specifies a 4 MHz maximum oscillator frequency. The 'SO' package is the 18-pin SOIC (0.295 in / 7.50 mm body width), a wide-body variant suitable for hand-soldered prototypes and production SMT lines alike. Typical applications span consumer appliance controllers, sensor signal conditioning, low-speed UART-based human-interface boards, and battery-backed instrumentation. The 13 I/O pins are sufficient for keypad scanning, LED driving, and small LCD interfaces. The 128-byte EEPROM provides convenient storage of calibration constants, user preferences, or device serial numbers without an external memory chip. When designing with this MCU, verify that the chosen 4 MHz resonator or crystal meets the timing requirements in the oscillator section of the datasheet and that decoupling capacitors (typically 100 nF) are placed within a few millimetres of VDD. For new designs, prefer the Flash-based PIC16F equivalents (e.g., PIC16F628A) for in-circuit re-programmability; the PIC16LCE625 OTP variant suits only production volumes where firmware is final.

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PIC16LCE625-04E/SS - 8-bit OTP MCU, 4MHz, 3.5KB | Microchip
PIC16LCE625-04E/SS

PIC16LCE625-04E/SS - 8-bit OTP MCU, 4MHz, 3.5KB | Microchip

The Microchip PIC16LCE625-04E/SS is an 8-bit PIC16 microcontroller in a 20-pin SSOP package featuring 3.5KB (2K x 14) of One-Time Programmable (OTP) program memory, 128 bytes of RAM, and 128 bytes of EEPROM, operating at a 4 MHz core speed. The device belongs to Microchip's PIC16C mid-range family, offering 13 digital I/O pins, an external oscillator interface, and an operating voltage range of 2.5V to 5.5V with an extended industrial temperature range of -40°C to +125°C. An OTP microcontroller is a type of embedded controller that uses one-time-programmable ROM for code storage - the program is written once via a device programmer and cannot be erased or rewritten, making OTP parts ideal for cost-sensitive high-volume production where firmware is stable. Within the broader taxonomy, this part is a microcontroller (MCU) -> 8-bit MCU -> PIC16 family -> PIC16C mid-range core -> RISC microcontroller -> embedded processor -> semiconductor. OTP differs from Flash (re-programmable in-circuit) and EPROM (UV-erasable windowed) variants - OTP offers the lowest per-unit cost at the price of field-upgradeability. Key differentiating features include the 14-bit wide instruction word with only 35 single-cycle instructions to learn (200 ns instruction cycle at 20 MHz input, except branches which are 2-cycle), enabling rapid firmware development. The integrated 128-byte EEPROM provides non-volatile data storage for parameters, calibration values, or user settings that survive power cycles. Brown-out reset, watchdog timer, and power-on reset are standard on-chip peripherals, alongside one analog comparator and a capture/compare/PWM (CCP) module for basic mixed-signal tasks. The PIC16C core uses a Harvard architecture with separate program and data buses, allowing instruction fetch and operand access in the same cycle. The 8-level deep hardware stack, two 8-bit file-select registers for banked RAM access, and interrupt-driven design with prioritized vectored interrupts make the PIC16LCE625 a workhorse for deterministic real-time control. The 'LC' suffix indicates a wide-voltage (2.5V-5.5V) variant supporting both 3.3V and 5V rails; the 'E' grade extends the temperature range to +125°C; '04' designates a 4 MHz rated speed grade; 'SS' denotes the 20-pin SSOP surface-mount package. Typical applications include low-cost consumer appliances, sensor signal conditioning front-ends, LED lighting controllers, simple motor and solenoid drivers, and industrial automation modules where deterministic 8-bit control suffices. Designers use it in battery-powered devices thanks to the 2.5V lower rail, in white-goods appliances requiring +125°C headroom, and in remote controls and toys where BOM cost dominates. When designing with this OTP part, plan firmware carefully and reserve one-time programmable PID budget for late changes - use an emulated Flash variant (PIC16F) during development and migrate to OTP for production cost-down. Account for SSOP thermal limitations above 80°C ambient and provide adequate decoupling on VDD/VSS pairs per datasheet Section 2. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design considerations not consolidated in any single manufacturer or distributor source.

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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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