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PIC12LC672T-04/SM - 8-Bit CMOS MCU 4MHz 3.5KB OTP 8-SOIJ | Microchip
PIC12LC672T-04/SM

PIC12LC672T-04/SM - 8-Bit CMOS MCU 4MHz 3.5KB OTP 8-SOIJ | Microchip

The Microchip Technology PIC12LC672T-04/SM is an 8-bit, low-cost, high-performance CMOS fully-static PIC microcontroller with an integrated analog-to-digital converter, packaged in an 8-SOIJ surface-mount form factor. The device operates from 2.5V to 5.5V supply, runs at 4 MHz internal clock, integrates 3.5 KB (2K x 14) of One-Time-Programmable (OTP) program memory, and provides 6 I/O ports in an 8-pin SOIJ outline. The /SM suffix denotes the SOIJ-8 surface-mount package supplied on tape-and-reel for high-volume assembly lines. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, data memory, and programmable peripherals. In the broader system hierarchy, the PIC12LC672 belongs to the 8-bit PIC microcontroller family, itself a subcategory of microcontrollers under embedded processors. The 'LC' prefix indicates the low-voltage CMOS variant, optimized for battery-friendly 3.3V systems while remaining 5V tolerant - useful when a design must bridge legacy 5V peripherals and modern 3.3V logic. Key features include 3.5 KB OTP program memory, 128 bytes RAM, four analog input channels with 8-bit ADC, an 8-bit real-time counter (TMR0) with programmable prescaler, a Watchdog Timer (WDT) with dedicated on-chip RC oscillator, Power-On Reset (POR), Device Reset Timer (DRT), and an internal 4 MHz oscillator. The integrated 8-bit ADC eliminates the need for an external converter in simple sensor interfaces such as thermistor or potentiometer reading. Architecturally, the PIC12LC672 uses Microchip's classic RISC Harvard architecture with a 12-bit instruction word and a two-stage pipeline, delivering 1 MIPS at 4 MHz. CMOS static design means clock can be stopped without losing register state - ideal for ultra-low-power sleep modes. The device's six general-purpose I/O pins multiplex with the ADC inputs, oscillator pins, and reset, allowing designers to remap peripheral functions as application needs dictate. Typical applications include consumer remote controls, battery-powered sensor nodes, appliance front-panel controllers, simple motor control signal conditioning, low-end security keypads, and embedded timers in industrial 24V systems stepped down to 3.3V or 5V rails. The combination of ADC + small OTP memory makes it well suited for cost-sensitive analog-front-end products. When designing with this part, remember that OTP memory cannot be re-programmed - production firmware must be finalized before mask programming, or the part should be replaced by an EPROM/Flash equivalent (e.g., PIC12F675 or PIC12F683) for prototyping. Decoupling capacitors (100 nF) should be placed within 5 mm of VDD, and unused I/O pins should be configured as outputs to minimize quiescent current. This page synthesizes distributor pricing, drop-in PIC12 family alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC12LC672T-04I/MF - 8-Bit OTP MCU 3.5KB 4MHz 8-DFN | Microchip
PIC12LC672T-04I/MF

PIC12LC672T-04I/MF - 8-Bit OTP MCU 3.5KB 4MHz 8-DFN | Microchip

The Microchip Technology PIC12LC672T-04I/MF is an 8-bit CMOS microcontroller from the PIC12C67x family, featuring 3.5 KB of One-Time Programmable (OTP) program memory (2K x 14), 128 bytes of RAM, and a 4-channel 8-bit ADC. It is housed in an 8-pin DFN-S (6x5 mm) surface-mount package with an exposed thermal pad and operates up to 4 MHz from a 2.5V to 5.5V supply. The device is part of the legacy PIC12C family targeting low-pin-count embedded control, with 5 GPIO and 1 input-only pin plus a MCLR/GP3 shared pin. What is an 8-bit OTP microcontroller? An OTP (One-Time Programmable) microcontroller is a class of MCU whose program memory can be written exactly once after manufacture, using a programmer or high-voltage serial protocol. Unlike flash-based MCUs, OTP parts cannot be field-updated, but they cost less per die and are well-suited to high-volume, fixed-function products such as appliance controllers, sensor signal conditioners, and disposable medical accessories. PIC12C67x parts sit in the hierarchical taxonomy of microcontroller -> 8-bit MCU -> CMOS RISC MCU -> PIC architecture -> PIC12C family, providing a baseline platform for simple control loops, A/D conversion, and timing tasks. Key features include a 4 MHz internal RC-like or external oscillator option, 1 µs instruction cycle, six I/O pins, a single 8-bit timer (TMR0) with watchdog, an analog comparator, brown-out reset, and an in-circuit serial programming (ICSP) interface. The OTP variant offers cost-optimized one-time programming for high-volume production runs where firmware stability is guaranteed. Architecturally, the PIC12LC672 uses a Harvard RISC core with separate program and data buses, a single accumulator (W) and 32-byte file-register area, allowing most instructions to execute in a single cycle. The integrated ADC delivers 8-bit resolution across 4 analog channels with successive-approximation conversion, sharing pins with the digital I/O ports. The 8-DFN-S exposed pad improves thermal dissipation for industrial temperature operation from -40 °C to +85 °C. Typical applications include battery chargers, LED lighting controllers, smoke detectors, simple sensor interfaces, and small appliance control. This component integrates seamlessly with Microchip's MPLAB X IDE and XC8 compiler toolchain for development and programming. When designing with this part, allocate pin 3 (GP3/MCLR) carefully because it doubles as the master-clear reset input and as a general-purpose input; the device has no dedicated MCLR-disable mode. For high-noise environments, place a 0.1 µF decoupling capacitor adjacent to the VDD pin and use the exposed pad as a ground plane anchor. This page synthesizes distributor pricing, parametrically-similar Microchip alternatives, and design considerations not consolidated on the manufacturer product page.

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PIC12LC672T-04I/SM - 8-bit 4MHz 3.5KB OTP MCU | Microchip
PIC12LC672T-04I/SM

PIC12LC672T-04I/SM - 8-bit 4MHz 3.5KB OTP MCU | Microchip

The Microchip Technology PIC12LC672T-04I/SM is an 8-bit CMOS RISC microcontroller in the PIC12C family, offering a 4MHz core speed with 3.5KB (2K x 14) of One-Time Programmable (OTP) program memory and 128 bytes of RAM, packaged in an 8-pin SOIJ (SM) surface-mount form. The device integrates a 10-bit successive-approximation A/D converter, Power-On Reset (POR), Device Reset Timer (DRT), Watchdog Timer (WDT) with its own on-chip RC oscillator, and a power-saving SLEEP mode. A microcontroller (MCU) is a single-chip computer that contains a processor core, program and data memory, and peripheral interfaces. Within the broader taxonomy, the PIC12LC672 belongs to the 8-bit MCU class, specifically the PIC12C6xx OTP subfamily, which sits between discrete logic controllers and 16/32-bit Cortex-M0 microcontrollers in capability. The 'LC' suffix denotes the low-power CMOS process variant, while the 'T' suffix indicates tape-and-reel packaging and 'I' indicates the industrial operating temperature grade. Key features include 6 I/O pins, 33 instructions (12-bit opcode), 8-level hardware stack, 8-bit real-time clock/counter (TMR0) with 8-bit programmable prescaler, and direct LED drive capability. The wide 2.5V to 5.5V supply range enables battery-powered designs while maintaining compatibility with 5V logic. The 4MHz oscillator frequency delivers 1 MIPS of throughput, suitable for simple control loops and sensor interface tasks. The architecture uses a Harvard design with separate program and data buses, allowing instruction fetch and operand access to occur simultaneously. This RISC-based core executes most instructions in a single 1us cycle, with only branch instructions requiring two cycles, providing deterministic timing for embedded control applications. Typical applications include appliance control, automotive sensor interfaces, low-cost battery-powered devices, smart-card readers, and security systems. The combination of OTP memory, integrated ADC, and small form factor makes it particularly suitable for high-volume cost-sensitive products where code is finalized in production. When designing with this device, ensure the supply decoupling capacitor is placed within 4mm of the VDD pin, and that the MCLR reset circuit respects the minimum pulse-width specification. The OTP memory cannot be re-programmed, so code development should be performed on a windowed or flash equivalent before committing to OTP. This page synthesizes distributor pricing, drop-in same-brand alternatives, and practical design notes not found in the manufacturer datasheet. Engineers comparing the PIC12LC672 family should weigh OTP vs UV-erase memory, package pinout (8-pin SOIJ vs PDIP), and the availability of A/D converter channels when selecting the optimal variant.

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PIC12LCE518-04/SM - 8-bit OTP MCU 768B 4MHz SOIJ-8 | Microchip
PIC12LCE518-04/SM

PIC12LCE518-04/SM - 8-bit OTP MCU 768B 4MHz SOIJ-8 | Microchip

The Microchip Technology PIC12LCE518-04/SM is an 8-bit CMOS microcontroller from the PIC12C family featuring 768 bytes of One-Time-Programmable (OTP) program memory, 25 bytes of RAM, 6 I/O pins, and a 4 MHz internal oscillator, packaged in an 8-pin SOIJ (208-mil) surface-mount package. The 'LC' suffix denotes the low-voltage, low-power variant with an operating voltage range of 2.5V to 5.5V, and the 'E' indicates on-chip EEPROM data memory (16 bytes) for non-volatile parameter storage in standalone applications. An 8-bit microcontroller (MCU) is a self-contained computing element that integrates a CPU, program memory (ROM/OTP/Flash), data memory (RAM), and peripheral interfaces onto a single silicon die. Within the broader taxonomy, MCUs sit below microprocessors (which require external memory and peripherals) and above simple state machines; the PIC12C5XX family specifically targets cost-sensitive, space-constrained applications where a few pins of digital I/O, a hardware timer, and a low-power sleep mode are sufficient. The Harvard RISC architecture uses separate program and data buses, allowing most instructions to execute in a single instruction cycle (1 µs at 4 MHz). Key features include 33 single-word instructions, all single-cycle except program branches (two cycles), an 8-bit real-time clock/counter (TMR0) with an 8-bit programmable prescaler, Power-On Reset (POR), Device Reset Timer (DRT), Watchdog Timer (WDT) with its own dedicated on-chip RC oscillator, and 16 bytes of EEPROM data memory. The 12-bit instruction width delivers approximately 2:1 code compression versus competing 8-bit architectures in the same price tier. The PIC12LCE518 architecture combines a RISC CPU with a precise 4 MHz internal oscillator and analog-friendly digital I/O, enabling deterministic interrupt response and minimal code overhead. In-system programmability is not supported on this OTP variant - the device must be programmed before final PCB assembly. Typical applications include low-cost consumer appliances, IR remote controls, battery-powered sensor interfaces, LED lighting controllers, and simple standby controllers in white goods. Its low-voltage capability also suits 2x AA / 3x AAA battery packs and energy-harvesting subsystems where quiescent current directly impacts battery life. When designing with this MCU, note that the OTP memory cannot be re-programmed - any firmware bug discovered after programming requires replacing the chip. The 8-SOIJ package provides better thermal performance and lower profile than standard SOIC-8, but requires careful PCB land pattern matching; verify footprint against the Microchip packaging specification rather than assuming SOIC-8 compatibility. This page consolidates distributor pricing, pin-compatible drop-in alternatives, and practical design notes not found in the standalone manufacturer datasheet, enabling faster sourcing and substitution decisions.

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PIC12LCE518-04/SN - 8-bit OTP MCU, 4 MHz, 768B | Microchip
PIC12LCE518-04/SN

PIC12LCE518-04/SN - 8-bit OTP MCU, 4 MHz, 768B | Microchip

The Microchip Technology PIC12LCE518-04/SN is a low-power 8-bit CMOS OTP (One-Time Programmable) microcontroller in the PIC® 12C family, packaged in an 8-pin SOIC (SN) with 1.27 mm pitch. It executes instructions in 1 µs per cycle at a 4 MHz oscillator and integrates 768 bytes of program memory (512 × 12-bit words) plus 25 bytes of RAM. Six general-purpose I/O pins support digital interfacing for simple control loops, sensors, and user input. An LDO (Low-Dropout) linear regulator maintains a stable output voltage even when the input voltage approaches the output. In the same way, a microcontroller (MCU) is an integrated circuit that combines a CPU, memory, and peripherals into a single chip. Within the MCU hierarchy, the PIC12LCE518 belongs to the 8-bit family -> RISC architecture -> PIC® 12C sub-family -> low-power (LC) OTP segment -> embedded controller class. It is part of the broader power management and embedded systems semiconductor category. Key features include a wide operating voltage range of 2.5 V to 5.5 V, low-power operation suited to battery-powered designs, an 8-bit real-time clock/counter (TMR0) with an 8-bit programmable prescaler, Power-On Reset (POR), Device Reset Timer (DRT), and a Watchdog Timer (WDT) with its own on-chip RC oscillator for reliable operation. The PIC architecture's 33 single-word instruction set provides easy programmability for both novice and experienced developers. The PIC12LCE518 uses a Harvard RISC architecture that separates program and data memory buses, enabling simultaneous instruction fetch and data access. This improves throughput over von Neumann designs at the same clock rate. Its CMOS OTP implementation allows one-time field programmability with a simple programmer, which is well-suited to mature products in stable production. Typical applications include consumer electronics, industrial control, automotive subsystems, remote controls, sensor interfaces, and small appliance controls. The compact 8-pin SOIC footprint and low power consumption make it ideal for cost-sensitive space-constrained designs. When designing with this MCU, ensure the oscillator configuration matches the application clock accuracy requirement; the internal 4 MHz RC oscillator is suitable for most general-purpose tasks, but applications requiring precise timing should use an external crystal. The OTP nature means firmware must be fully validated before programming - in-circuit reprogramming is not supported. This page synthesizes distributor pricing from Mouser and LCSC, parametric cross-references from DigiKey, and practical design notes not found in the manufacturer datasheet alone, including the ETEI comparison with the flash-based PIC12F519 successor.

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PIC12LCE518-04I/SM - 8-Bit CMOS MCU 768B OTP 4MHz | Microchip
PIC12LCE518-04I/SM

PIC12LCE518-04I/SM - 8-Bit CMOS MCU 768B OTP 4MHz | Microchip

The Microchip Technology PIC12LCE518-04I/SM is an 8-pin, 8-bit CMOS microcontroller with 768 bytes of OTP program memory (512 x 12 words), 25 bytes of RAM, and 6 I/O pins, housed in an 8-SOIJ (5.30 mm / 0.209 in width) surface-mount package. Operating at a 4 MHz clock with a 1 microsecond instruction cycle, it supports a 2.5V to 5.5V supply voltage and the industrial -40C to +85C temperature range, making it suitable for cost-sensitive embedded applications. What is a PIC 12C microcontroller? The PIC12C5XX family is Microchip's entry-level 8-bit CMOS microcontroller line, architecturally positioned below the PIC16 and PIC18 families. These MCUs use a RISC-like 33-instruction set with single-cycle execution (except branches which take two cycles), enabling deterministic timing for embedded control loops. The 'L' prefix denotes the low-voltage (2.5V minimum) variant, the 'E' indicates integrated EEPROM data memory, and the PIC12C/12CE series typically ships in 8-pin packages - the smallest footprint in Microchip's OTP line. Key features include an 8-bit real-time clock/counter (TMR0) with an 8-bit programmable prescaler, Power-On Reset (POR), Device Reset Timer (DRT), and a Watchdog Timer (WDT) with its own on-chip RC oscillator for reliable operation without external supervision. The 6 I/O pins support direct LED drive and digital interfacing, while 12-bit-wide instructions deliver 2:1 code compression versus competing 8-bit MCUs in its class. The PIC12LCE518-04I/SM integrates 16 bytes of EEPROM data memory, allowing persistent storage of calibration values, configuration parameters, or usage counters without external serial EEPROM. The on-chip WDT with dedicated RC oscillator ensures the MCU recovers from software lockups even if the main system clock fails - critical for unattended appliance and industrial sensor applications. Typical applications include appliance controllers, LED drivers, sensor signal conditioning, low-end consumer electronics, and battery-powered IoT edge nodes. The wide 2.5V-5.5V supply range permits direct operation from two alkaline cells or a single Li-ion cell. The combination of small footprint, OTP programmability, and integrated EEPROM makes this part a strong fit for high-volume OEM products where unit cost dominates. When designing with the PIC12LCE518-04I/SM, ensure the MCLR pin is pulled high through a 10 kohm resistor for normal operation and that the supply rail is decoupled with a 100 nF ceramic capacitor within 5 mm of the VDD pin. The /SM suffix denotes the SOIJ (Small Outline IC with J-lead) package, which offers superior board-level reliability versus standard SOIC for thermal-cycled environments. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC12LCE518-04I/SN - 8-Bit 4MHz OTP MCU 768B | Microchip
PIC12LCE518-04I/SN

PIC12LCE518-04I/SN - 8-Bit 4MHz OTP MCU 768B | Microchip

The Microchip Technology PIC12LCE518-04I/SN is an 8-bit CMOS microcontroller from the PIC12C family, offering 4 MHz core clock speed, 768 bytes of OTP program memory (512 x 12 bits), and 25 bytes of RAM in an 8-pin SOIC package. Designed for low-power and low-cost embedded control, this industrial-temperature variant operates from 2.5V to 5.5V and provides 6 I/O pins suitable for driving peripherals, sensors, and user-interface logic. An 8-bit microcontroller (MCU) is a small, self-contained computer-on-a-chip built around an 8-bit data path, ROM/Flash/OTP program memory, RAM, and a complement of timers and I/O. It occupies a position in the embedded hierarchy below 32-bit ARM Cortex-M parts but above discrete logic, delivering deterministic single-cycle instruction execution that simplifies real-time firmware design. Within Microchip's portfolio, the PIC12 family is positioned as a compact, OTP/Flash-based baseline MCU for high-volume cost-sensitive applications. Key features include a programmable 8-bit prescaler feeding an 8-bit real-time counter/timer (TMR0), a Watchdog Timer (WDT) with its own dedicated on-chip RC oscillator for reliable operation, Power-On Reset (POR), Device Reset Timer (DRT), and programmable code protection. The industrial (-40C to +85C) operating range suits factory, automotive subsystems, and outdoor installations. The PIC12C architecture is RISC-based with only 33 single-word instructions, simplifying code development and reducing firmware size. The PIC12LCE518 uses a Harvard architecture with separate program (OTP, 12-bit wide) and data (RAM) buses, plus a 14-bit instruction word. The "LCE" suffix denotes the low-power CMOS EPROM variant, distinguished from baseline PIC12C parts by lower operating current. Brown-out detect and a wide 2.5V-5.5V supply range make the part tolerant of noisy industrial rails. Typical applications include appliance control, smart sensors, low-cost remote controls, battery-powered instrumentation, and simple logic replacement. Designers also use it in automotive accessories (interior lighting, HVAC actuators), consumer white goods, and security/keypad panels. The small 8-SOIC footprint enables single-side PCB designs with minimal BOM. When designing with this part, note that OTP memory is one-time programmable - firmware cannot be field-upgraded. For prototyping or field-updatable designs, prefer the PIC12F equivalent. Decoupling capacitors (100 nF close to VDD) and a stable clock source (internal RC or external crystal) are required; verify the oscillator configuration bits in code. This page synthesizes distributor stock, parametric drop-in alternatives, and practical design guidance that goes beyond the manufacturer datasheet, giving engineers an at-a-glance view for sourcing and second-source decisions.

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PIC12LCE518T-04/SN - 8-Bit 4MHz PIC MCU 768B OTP | Microchip
PIC12LCE518T-04/SN

PIC12LCE518T-04/SN - 8-Bit 4MHz PIC MCU 768B OTP | Microchip

The Microchip PIC12LCE518T-04/SN is an 8-bit PIC microcontroller (MCU) in the PIC® 12C family featuring 768 bytes (512 x 12) of One-Time Programmable (OTP) program memory, 25 bytes of RAM, and 16 bytes of EEPROM data memory, all packaged in an 8-pin SOIC (SO-8/8-SOIC, 3.90mm body) with gull-wing leads and a 4MHz maximum internal clock speed. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, and peripherals such as timers and reset controllers. In the embedded-system hierarchy, the PIC12LCE518 belongs to the 8-bit MCU category (PIC -> 8-bit MCU -> microcontroller -> embedded IC -> semiconductor), historically Microchip's lowest-pin-count, OTP-programmed line used in cost-sensitive, low-volume or fixed-function designs where in-circuit reprogrammability is not required. Key features include 33 single-word instructions (all single-cycle at 1 µs, except branches which take two cycles), six I/O pins (5 GPIO + 1 input-only per the standard 12C508/509 pinout convention), an internal RC oscillator, an 8-bit real-time clock/counter (TMR0) with 8-bit programmable prescaler, Power-On Reset (POR), Device Reset Timer (DRT), and a Watchdog Timer (WDT) with its own on-chip RC oscillator for reliable operation. The wide 2.5V to 5.5V supply-voltage range covers both 3.3V and 5V rails common in legacy and modern mixed-signal designs. The PIC12LCE518 uses a RISC Harvard-architecture core with a 12-bit instruction word, fabricated in CMOS for low static current draw. With only 33 instructions and a predictable single-cycle execution model (excluding branches), the device simplifies firmware development for timing-deterministic control loops. The OTP program memory is programmed once and cannot be erased, making the part ideal for high-volume, fixed-code products where the per-unit cost of the silicon is lower than a Flash equivalent. Typical applications include simple appliance timers, sensor signal-conditioning front-ends, low-end consumer remote controls, and battery-powered indicator boards. The 'L' in the part number designates the low-voltage (2.5V minimum Vdd) variant, and the 'E' indicates the EEPROM-data-memory member of the 12C5xx family. Its small 8-SOIC footprint and minimal external component count enable compact PCB layouts. When designing with the PIC12LCE518T-04/SN, consider that OTP memory cannot be re-programmed, so firmware must be fully validated on equivalent Flash parts (such as the PIC12F509 or PIC12F519) before committing to OTP. Choose the 'I' (industrial) temperature-grade variant for designs operating outside the commercial 0 °C to +70 °C range. Add a decoupling capacitor of at least 0.1 µF directly across VDD/VSS pins. This page synthesizes distributor pricing, parametric alternatives from the same PIC12C5xx OTP and PIC12F5xx Flash families, drop-in cross-references, and practical design notes not consolidated in the original datasheet.

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PIC12LCE518T-04I/SN - 4MHz 8-bit OTP MCU w/ EEPROM | SOIC-8
PIC12LCE518T-04I/SN

PIC12LCE518T-04I/SN - 4MHz 8-bit OTP MCU w/ EEPROM | SOIC-8

The Microchip Technology PIC12LCE518T-04I/SN is an 8-bit CMOS microcontroller from the PIC12C family featuring 768 bytes of One-Time Programmable (OTP) program memory (organized as 512 x 12 bits), 25 bytes of RAM, and 16 bytes of EEPROM data memory, all housed in an 8-pin SOIC (SN) package. Operating at a 4 MHz internal clock with a 1 us instruction cycle, this industrial-grade device runs from a 2.5V to 5.5V supply. A microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, non-volatile program memory, and peripheral interfaces into one package. The PIC12C family belongs to Microchip's PIC architecture - an 8-bit RISC core with Harvard memory organization. Within the broader taxonomy, this device sits as: 8-bit MCU -> RISC microcontroller -> embedded controller -> semiconductor IC. The 'L' in the part number indicates a low-power variant, while the 'E' denotes the inclusion of on-chip EEPROM data memory, a feature that distinguishes it from the OTP-only PIC12C5XX base line. Key differentiating features of the PIC12LCE518T-04I/SN include 33 single-word instructions (most executing in a single 1 us cycle), 6 I/O pins on an 8-pin package, an 8-bit real-time clock/counter (TMR0) with an 8-bit programmable prescaler, a Power-On Reset (POR), a Device Reset Timer (DRT), a Watchdog Timer (WDT) with its own on-chip RC oscillator, and an internal 4 MHz RC oscillator. The 'T' suffix indicates tape-and-reel packaging, while '-04I' specifies the 4 MHz speed grade and industrial temperature range (-40C to +85C). Typical applications for the PIC12LCE518T-04I/SN include low-cost consumer electronics, appliance controllers, sensor signal conditioning front-ends, simple LED drivers, battery-powered devices leveraging its low-power PIC core, and education/hobby projects that benefit from the PIC's small instruction set and inexpensive programmer ecosystem. Designers familiar with the PIC12C5XX instruction set can reuse code from legacy designs. When designing with this part, note that it is presently listed as obsolete on major distributor channels; engineers should evaluate same-package PIC12F5XX or PIC12CE5XX flash-based alternatives for new designs. Adequate decoupling (100 nF + bulk) and in-circuit serial programming (ICSP) pin access should be planned on the PCB. This page synthesizes distributor pricing, drop-in replacement MPNs sourced from cross-reference databases, and practical design notes - information not aggregated in any single manufacturer datasheet.

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PIC12LCE519-04/SN - 8-Bit OTP MCU 1.5KB | Microchip
PIC12LCE519-04/SN

PIC12LCE519-04/SN - 8-Bit OTP MCU 1.5KB | Microchip

The Microchip PIC12LCE519-04/SN is a low-voltage, 8-bit CMOS microcontroller from the PIC12C family, featuring 1.5KB (1K x 12) of One-Time-Programmable (OTP) program memory, 41 bytes of RAM, and 6 I/O pins. It operates at up to 4 MHz and is housed in an 8-pin SOIC (SN) package with a 0.154 inch (3.90 mm) body width. The 'L' prefix designates a low-voltage core (2.5V to 5.5V VDD), and the 'E' designates the enhanced EEPROM-data variant. The device is rated for commercial temperature (0C to +70C) and is suitable for cost-sensitive, space-constrained embedded designs. A microcontroller (MCU) is a single-chip computer containing a CPU, program memory, data memory, and I/O peripherals on one integrated circuit. PIC microcontrollers use a RISC-based Harvard architecture and are programmed using Microchip's MPLAB X IDE and the MPLAB PM3 programmer. Within the semiconductor hierarchy, an MCU is a sub-category of digital IC, and the PIC12C family occupies the low-pin-count, ultra-small-footprint tier alongside the PIC10F, PIC12F, and PIC16C families. Key features of the PIC12LCE519 include four oscillator selections (including the internal 4 MHz RC oscillator with programmable calibration), a 25 mA source/sink capability per I/O pin for direct LED drive, a Power-on Reset (POR), a Watchdog Timer (WDT), and a 16-byte EEPROM data area. The RISC core executes most instructions in a single 1-microsecond cycle (at 4 MHz). Typical applications span low-cost consumer appliances, infrared remote controls, sensor signal conditioning, battery-powered timers, and automotive body electronics (non-safety). The 8-pin footprint also makes the part attractive as a one-time-programmable logic replacement in legacy systems and as a glue MCU between analog front-ends and wireless modules. When designing with this device, ensure the VDD range stays within 2.5V-5.5V and that decoupling is placed within 3 mm of the supply pin. The OTP memory means firmware is final after programming - choose this part for mature, stable code rather than iterative prototyping. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on a single manufacturer page, helping engineers compare the PIC12LCE519-04/SN with its 'CE' sibling and identify pin-compatible substitutes for EOL designs.

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PIC12LCE519-04I/P - 8-Bit 4MHz CMOS MCU w/ EEPROM DIP-8 | Microchip
PIC12LCE519-04I/P

PIC12LCE519-04I/P - 8-Bit 4MHz CMOS MCU w/ EEPROM DIP-8 | Microchip

The Microchip Technology PIC12LCE519-04I/P is an 8-bit CMOS microcontroller with integrated EEPROM data memory, operating at up to 4 MHz instruction rate and packaged in a 300-mil through-hole DIP-8 (PDIP-8) outline. It executes 33 single-word instructions from an enhanced PIC16C5X core and embeds 1.5 KB (1K x 12) of OTP program memory plus 41 bytes of RAM. Six general-purpose I/O lines, an 8-bit real-time clock/counter (TMR0) with programmable prescaler, Power-On Reset (POR), Device Reset Timer (DRT), and a Watchdog Timer (WDT) with its own on-chip RC oscillator are all integrated on-die. What is a PIC12 microcontroller? The PIC12 family is Microchip's baseline 8-bit CMOS microcontroller line based on the 14-bit enhanced mid-range architecture, optimized for low pin-count, low-power, cost-sensitive embedded tasks. It sits hierarchically under PIC16 (mid-range) and PIC18 (high-end 8-bit) in Microchip's 8-bit product tree. Variants such as the PIC12LCE519 add integrated serial EEPROM that can be read/written during runtime for parameter storage, distinguishing them from PIC12C5xx OTP-only siblings. Key features include industrial-grade -40C to +85C operation, 2.5V to 5.5V single-supply operation, low-power CMOS design, and a wide range of oscillator options (RC, LP, XT, HS, INTOSC). The "L" prefix indicates the low-voltage (2.5V) variant of the PIC12CE519 family; "04" denotes 4 MHz maximum clock; "I" indicates the industrial temperature grade; and "/P" specifies the PDIP-8 through-hole package. Typical applications include consumer appliance controllers, battery-powered sensor nodes, smart lighting controls, security alarm keypads, and educational/hobbyist projects. The integrated EEPROM makes it especially well-suited to designs that need to retain user settings, calibration constants, or tamper counters across power cycles without an external memory IC. Design tip: When migrating designs that were originally built around a PIC12C5xx OTP-only part, replacing it with the PIC12LCE519 lets you add 16 bytes of non-volatile storage at zero PCB cost - but you must still verify timing, oscillator mode, and ICD pin assignments match. This page synthesizes distributor pricing (as of 2026-09-16), same-family and cross-family drop-in alternatives, application notes, and design notes not aggregated in any single manufacturer datasheet.

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PIC12LCE519-04I/SM - 8-bit OTP MCU, 1.5KB EPROM, 4MHz | Microchip
PIC12LCE519-04I/SM

PIC12LCE519-04I/SM - 8-bit OTP MCU, 1.5KB EPROM, 4MHz | Microchip

The Microchip Technology PIC12LCE519-04I/SM is an 8-bit CMOS microcontroller with on-chip EPROM program memory, housed in an 8-pin SOIJ (SM) surface-mount package. It integrates 1.5 KB of one-time-programmable EPROM, 41 bytes of RAM, and 6 general-purpose I/O lines in a RISC core that executes 33 single-word instructions, most in a single 1 microsecond instruction cycle at 4 MHz clock input. The device supports a wide operating voltage range from 2.5 V to 5.5 V (with the 'L' low-voltage variant supporting 3.3 V/5 V operation), making it well suited for both battery-powered and mains-powered embedded designs. What is an 8-bit microcontroller? An 8-bit MCU is a small, self-contained computing device built around an 8-bit data path, integrating a CPU, program memory (ROM/EPROM/Flash), working RAM, and peripheral I/O on a single die. The PIC12LCE519 belongs to the PIC12C/LC5xx family of low-cost, low-pin-count Microchip microcontrollers, sitting within the broader PIC architecture taxonomy: PIC12 -> baseline 8-bit RISC -> 8-bit microcontroller -> microcontroller -> embedded IC -> semiconductor. The 'LC' prefix denotes the low-voltage CMOS process variant. Key differentiating features include an 8-bit real-time clock/counter (TMR0) with programmable prescaler, power-on reset (POR), device reset timer (DRT), watchdog timer (WDT) with dedicated on-chip RC oscillator, and integrated EEPROM-style data memory suitable for storing user configuration and calibration values. The '04' speed grade denotes 4 MHz maximum clock input, while the 'I' suffix designates the industrial operating temperature range. The architecture uses a Harvard-style memory layout with separate program and data buses, 12-bit wide instruction words, and 8-bit wide data paths. This allows single-cycle instruction execution for most opcodes while program branches take two cycles. The 6 I/O pins share peripheral functions including timer I/O and interrupt sources. Typical applications include low-cost consumer appliances, automotive body electronics (non-safety), battery-powered sensor nodes, simple LED drivers, remote-control transmitters, and small white goods controllers. The wide voltage tolerance allows direct connection to unregulated 3.3 V or 5 V rails without additional regulation. Industrial-grade temperature rating extends usability to harsh environments. When designing with the PIC12LCE519, ensure the oscillator configuration bits match the system clock requirement and consider the EPROM programming window for one-time-programmed production units. The SOIJ package requires standard surface-mount reflow; the J-Lead form factor improves solder joint reliability on automated assembly lines compared to standard SOIC gull-wing leads.

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PIC12LCE519-04I/SN - 8-bit 4MHz 1.5KB OTP MCU | Microchip
PIC12LCE519-04I/SN

PIC12LCE519-04I/SN - 8-bit 4MHz 1.5KB OTP MCU | Microchip

The Microchip PIC12LCE519-04I/SN is a low-power 8-bit CMOS microcontroller in the PIC® 12C family, featuring 1.5 KB (1K x 12) of One-Time-Programmable (OTP) program memory, 41 bytes of RAM, 6 I/O pins, and an internal 8-bit timer (TMR0) with programmable prescaler. The part runs from a 4 MHz oscillator and executes single-cycle instructions in 1 us, all housed in an 8-pin SOIC (SN) package with industrial temperature rating (-40C to +85C). What is a PIC® 12C microcontroller? The PIC® 12C series is a family of 8-pin, RISC-architecture microcontrollers from Microchip Technology designed for compact, cost-sensitive embedded control. Positioned in the broader hierarchy of microcontrollers -> embedded controllers -> semiconductor ICs, the 12C line emphasizes small footprint, low pin count, and OTP/EPROM/ROM program memory options, making it a baseline building block for simple logic-replacement and dedicated control tasks. Key features of the PIC12LCE519-04I/SN include Power-On Reset (POR), Device Reset Timer (DRT), Watchdog Timer (WDT) with its own on-chip RC oscillator, and an internal EEPROM data memory block (16 bytes typical, distinguishing it from the non-EEPROM PIC12C519). The 'L' prefix denotes the low-power variant, and 'E' denotes the EEPROM data memory - together allowing battery-friendly operation down to 2.5 V supply. Technically, the part uses a RISC Harvard architecture with only 33 single-word instructions; all instructions execute in one cycle except program branches (two cycles). This 4:1 speed advantage over comparable CISC parts simplifies deterministic timing. In-circuit serial programming (ICSP) is supported, enabling firmware updates after PCB assembly. Typical applications include battery-powered sensor nodes, automotive aftermarket accessories, appliance control boards, small white-goods controllers, and remote-control transmitters. The wide 2.5-5.5 V supply range accommodates both 3.3 V coin-cell systems and 5 V regulated rails. When designing with this part, place a 0.1 uF decoupling capacitor as close as possible to VDD, and reserve GP2/T0CKI for wake-up or external clock if needed. Note that OTP memory cannot be re-programmed in-circuit - design with EPROM (PIC12CE519 JW windowed) variants for prototype bring-up. This page synthesizes verified distributor pricing, drop-in alternative MPNs, and practical design guidance not consolidated in the manufacturer datasheet, helping engineers evaluate supply-chain options and second-source risks as of 2026-09-16.

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PIC12LCE519T-04/SM - 8-Bit PIC MCU, 1.5KB OTP, 4MHz, 8-SOIJ
PIC12LCE519T-04/SM

PIC12LCE519T-04/SM - 8-Bit PIC MCU, 1.5KB OTP, 4MHz, 8-SOIJ

The Microchip Technology PIC12LCE519T-04/SM is an 8-bit RISC PIC microcontroller featuring 1.5KB (1Kx12) OTP program memory, 41 bytes of RAM, and 16 bytes of EEPROM data memory, housed in an 8-pin SOIJ (5.30mm body width) surface-mount package. It executes 33 single-word instructions, all single-cycle (1 microsecond at 4 MHz) except program branches which are two-cycle. According to the Microchip datasheet, the device provides five general-purpose digital I/O pins plus one input-only pin (six I/O total), with on-chip peripherals including Power-On Reset (POR), Watchdog Timer (WDT), and an internal 4 MHz RC oscillator option. What is a microcontroller? An MCU (microcontroller unit) is a single-chip computer containing a CPU core, program memory (ROM/Flash/OTP), working RAM, and integrated peripherals such as timers, ADC, and communication interfaces. The PIC12 family sits at the entry level of Microchip's 8-bit PIC portfolio, optimized for low pin count, low cost, and deterministic real-time control in space-constrained designs. The PIC architecture (modified Harvard RISC) traces its lineage to General Instrument's 1970s design and remains widely deployed in appliances, automotive sub-systems, and industrial sensors. Key specifications include 1.5KB OTP program memory, 41x8 RAM, 16x8 EEPROM, six I/O, 4 MHz maximum clock, and a brown-out detect / power-on reset supervisor. The device operates across 2.5V to 5.5V (LCE low-voltage variant) and is specified for the commercial 0C to +70C temperature range (the -04 speed grade denotes 4 MHz). Peripherals include one 8-bit timer/counter with prescaler, watchdog timer, and an internal oscillator calibration. The PIC12LCE519T-04/SM uses a 12-bit instruction word PIC core with a 2-stage pipeline, executing most instructions in a single instruction cycle. OTP (one-time programmable) program memory makes this part suited for production runs where code stability is locked at programming time. The 8-SOIJ package features a J-leaded outline for improved board-level reliability versus gull-wing SOIC. Typical applications include small appliance controllers, LED drivers, remote-control transmitters, sensor signal conditioning, and battery-powered consumer devices. Designers choose this part for cost-sensitive embedded tasks requiring 6 or fewer I/O lines. When designing with the PIC12LCE519T-04/SM, ensure the ICSP (In-Circuit Serial Programming) pins are accessible for production programming. The OTP variant cannot be reprogrammed, so production firmware must be verified before programming. For in-circuit reprogrammability, choose a Flash-based PIC12F variant instead. This page synthesizes distributor pricing, drop-in alternatives from the Microchip PIC12 family, and practical design notes not found in the manufacturer datasheet alone.

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PIC12LCE519T-04/SN - 8-bit MCU, 4MHz, 1.5KB OTP, SOIC-8 | Microchip
PIC12LCE519T-04/SN

PIC12LCE519T-04/SN - 8-bit MCU, 4MHz, 1.5KB OTP, SOIC-8 | Microchip

The Microchip Technology PIC12LCE519T-04/SN is an 8-bit CMOS microcontroller from the PIC12C/12LC family, integrating 1.5KB of OTP program memory, 41 bytes of RAM, and 6 I/O pins in an 8-pin SOIC package. The device operates at up to 4 MHz from a 2.5V to 5.5V supply, making it suitable for low-power commercial embedded applications. A microcontroller (MCU) is a single-chip computer that contains a processor core, non-volatile program memory, working RAM, and programmable I/O peripherals. The PIC12C/12LC family uses Microchip's RISC (Reduced Instruction Set Computer) Harvard architecture with a 33-instruction set, 12-bit instruction word, and 8-bit data path. These MCUs sit at the low-end of Microchip's PIC12C line, targeting simple control tasks where cost and small footprint outweigh the need for advanced peripherals; the 'LC' suffix denotes the low-power CMOS variant optimized for battery and sleep-mode operation, and the 'E' suffix indicates an OTP (One-Time-Programmable) memory derivative. Key features include an 8-bit real-time clock/counter (TMR0) with an 8-bit programmable prescaler, Power-On Reset (POR), Device Reset Timer (DRT), and a Watchdog Timer (WDT) with its own dedicated on-chip RC oscillator for reliable system recovery. The architecture provides 6 bidirectional I/O pins, an internal oscillator option, and a low-power SLEEP mode that drops current draw to microampere levels. Technically, the PIC12LCE519T-04/SN shares the same die as the PIC12CE519 family but is offered in the SOIC-8 (SN) package rather than PDIP. It supports in-circuit serial programming (ICSP) and operates across the commercial 0C to +70C temperature range, which is verified by the LCSC entry confirming 0C~+70C operation. The '04' speed suffix specifies the 4 MHz internal clock option, which sets instruction execution at 1 MIPS. Typical applications include appliance control, sensor signal conditioning, LED driver controllers, simple battery-powered timers, and low-cost consumer electronics. The compact SOIC-8 footprint and minimal external component count (a single decoupling capacitor plus optional reset pull-up) make the device attractive for space-constrained designs where MCU cost dominates the BOM. Designers should observe the 5.5V absolute-maximum supply rating and ensure decoupling is placed adjacent to the VDD pin. Because the PIC12LCE519T-04/SN uses OTP memory, firmware revisions require physical replacement of the part - in-system reprogramming is not supported - so production firmware must be frozen before final programming. This page synthesizes distributor pricing snapshots from DigiKey/Mouser/LCSC, drop-in same-package alternatives from the PIC12 family, and practical design notes that supplement the manufacturer datasheet with engineer-facing context.

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PIC12LCE519T-04I/SN - 8-bit OTP MCU, 1.5KB, 6 I/O, SOIC-8 | Microchip
PIC12LCE519T-04I/SN

PIC12LCE519T-04I/SN - 8-bit OTP MCU, 1.5KB, 6 I/O, SOIC-8 | Microchip

The Microchip PIC12LCE519T-04I/SN is an 8-bit CMOS microcontroller in the PIC12C/12CE family, integrating 1.5 KB of One-Time-Programmable (OTP) program memory with 41 bytes of data RAM, packaged in an 8-pin SOIC (SN) with tape-and-reel packaging. According to the Microchip datasheet, it runs at a 4 MHz oscillator input delivering 1 µs instruction cycle (single-cycle for most instructions, two-cycle for branches) and operates from 2.5 V to 5.5 V across the industrial -40 °C to +85 °C range. The device offers 6 general-purpose I/O pins, an 8-bit Timer0 with programmable prescaler, internal EEPROM data memory for non-volatile user storage, power-on reset, watchdog timer with dedicated on-chip RC oscillator, and device reset timer. An 8-bit microcontroller (MCU) is a single-chip computer with an 8-bit data bus, ALU, program ROM, data RAM, and integrated peripherals. MCUs sit within the broader category of microcontrollers -> embedded processors -> semiconductors. The PIC12C/12CE family occupies the entry-level tier of the PIC architecture hierarchy, optimized for cost-sensitive, pin-constrained applications such as appliance controls, sensor interfaces, and consumer electronics. The OTP variant (vs. flash) is one-time programmable but supports EEPROM data memory for user-variable storage, a useful split for low-cost production where firmware is fixed at mask time but calibration constants must still be field-adjustable. Key features of the PIC12LCE519T-04I/SN include its 33 single-word RISC instruction set (vs. 35-50 on competitive CISC 8-bit MCUs), the integrated EEPROM data memory, the dedicated WDT RC oscillator that keeps the watchdog running even in sleep, and the low pin count of 6 I/O that enables designs in tiny SOIC-8 outlines. The "L" prefix denotes the low-voltage (2.5 V min) variant, and "04" specifies the 4 MHz oscillator maximum. Typical applications include low-cost remote control transmitters, thermostat front-end controllers, small appliance user interfaces, sensor signal conditioning with on-chip calibration, LED driver controllers, and battery-powered timers. The 2.5 V minimum supply extends battery life in 2-cell alkaline or single-cell lithium chemistries. When designing with this part, note that OTP memory cannot be reprogrammed in the field — use the PIC12F519 flash-based cousin for prototype or low-volume runs, then move to the PIC12LCE519 for cost-down production. The 41-byte RAM is small; recursive C compilers should be avoided in favor of assembly or tightly-written C. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC12LCE673-04/P - 8-Bit 4MHz MCU 1.75KB OTP 8-PDIP | Microchip
PIC12LCE673-04/P

PIC12LCE673-04/P - 8-Bit 4MHz MCU 1.75KB OTP 8-PDIP | Microchip

The Microchip Technology PIC12LCE673-04/P is an 8-bit CMOS RISC microcontroller from the PIC® 12C family, featuring 4 MHz maximum clock speed, 1.75 KB (1K x 14) of One-Time-Programmable (OTP) program memory and 128 bytes of RAM, housed in a through-hole 8-pin PDIP package. The 'L' prefix designates the low-voltage variant (2.5V to 5.5V supply), making it one of the earliest microcontrollers to support true sub-3V operation from a single cell or two-battery stack. It exposes 6 general-purpose I/O pins and integrates analog and timing peripherals that allow complete system replacement of discrete logic in many applications. A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory, working RAM, and peripheral blocks. The PIC12C family uses a Harvard RISC architecture with 33 single-word instructions, delivering 1 µs instruction execution at 4 MHz. As part of the broader microcontroller category, PIC12C devices sit at the entry-level of Microchip's 8-bit portfolio above simpler 5xx parts and below the PIC16F mid-range series, occupying the 'low-pin-count, OTP-programmed, cost-optimised' niche. Key features include 8-bit real-time counter TMR0 with 8-bit programmable prescaler, Power-On Reset (POR), Device Reset Timer (DRT), Watchdog Timer (WDT) with dedicated on-chip RC oscillator, and selectable oscillator modes (RC, LP, XT, HS, INTOSC). The OTP EPROM provides one-time field programming suitable for production volumes where firmware is fixed and stable. Brown-out Reset and code protection are also supported for reliable field deployment. Internally, the PIC12LCE673-04/P employs a 14-bit instruction word with single-cycle execution except for program branches (two-cycle). The 8-level hardware stack and 7 special function registers keep the core footprint minimal. The integrated 8-bit A/D converter (where applicable on the CE sibling) and on-chip EEPROM data memory (CE-only) distinguish it from earlier 12C5xx devices. The Harvard bus separates program fetches from data accesses, eliminating Von Neumann bottleneck and enabling deterministic instruction timing suitable for real-time control loops. Typical applications include low-power battery-operated sensor nodes, automotive body controllers, appliance control boards, IR remote control transmitters, smoke detectors, electronic locks, smart toys, and simple lighting controllers. The wide 2.5V-5.5V supply range and 6 I/O pins make it a strong fit for human-interface and sensing subsystems that previously required multiple discrete components. When designing with this part, choose the PIC12CE673-04/P variant if non-volatile EEPROM data memory is required for parameter storage. The 'L' low-voltage suffix is essential for 3V-only systems; standard PIC12C673-04/P requires 3.0V-6.0V. PCB layout should minimise noise coupling to the OSC1/OSC2 pins and provide adequate decoupling on VDD/VSS within 25 mm of the package pins.

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PIC12LCE674-04/P - 8-bit CMOS MCU with EEPROM, 4MHz, DIP-8 | Microchip
PIC12LCE674-04/P

PIC12LCE674-04/P - 8-bit CMOS MCU with EEPROM, 4MHz, DIP-8 | Microchip

The Microchip PIC12LCE674-04/P is an 8-bit CMOS microcontroller with on-chip EEPROM data memory and a 10-bit A/D converter, housed in an 8-pin PDIP (PDIP-8) through-hole package. The part is a member of the Microchip PIC12 mid-range family, features 3.5KB of one-time-programmable (OTP) program memory, 128 bytes of RAM, and 6 digital I/O pins, and supports an instruction cycle of 1 microsecond at 4 MHz clock input. An 8-bit PIC microcontroller (MCU) is a low-power, deterministic Harvard-architecture processor that executes a reduced instruction set (RISC) optimized for embedded control. It belongs to the broader category hierarchy of microcontroller -> microprocessor -> integrated circuit -> semiconductor. The "L" prefix indicates a low-voltage variant capable of operating down to 2.5 V, while the "C" suffix denotes CMOS EPROM/EEPROM-based program memory. Low-power, 8-pin PIC MCUs are widely used in cost- and footprint-constrained applications where deterministic interrupt response and ultra-low sleep current are required. Key features of the PIC12LCE674-04/P include 3.5KB OTP EPROM program memory, 128 bytes of RAM, on-chip 64-byte EEPROM data memory (separate from program memory), a 10-bit successive-approximation analog-to-digital converter with up to 4 input channels, a capture/compare/PWM (CCP) module, an 8-bit real-time clock/counter (TMR0) with programmable prescaler, and a Watchdog Timer with dedicated on-chip RC oscillator. The device operates from 2.5 V to 5.5 V across the commercial temperature range of 0 C to +70 C and provides Power-On Reset, Brown-Out Reset, Device Reset Timer, and in-circuit serial programming (ICSP) via two pins. Technically, the PIC12LCE674-04/P uses a 14-bit instruction word with a 33-instruction RISC set, where every instruction executes in a single cycle (1 microsecond at 4 MHz) except program branches, which take two cycles. The Harvard bus architecture separates program and data paths to allow simultaneous instruction fetch and operand read. The 10-bit ADC uses successive approximation with a maximum sampling rate of approximately 30 ksps at 5 V and provides four analog input multiplexed channels shared with digital I/O, simplifying external signal-conditioning circuitry. On-chip EEPROM supports 1 million erase/write cycles typical and is byte-accessible through dedicated SFRs, eliminating external serial EEPROM in many designs. Typical applications include battery-powered sensor signal conditioning, small appliance controllers, LED lighting drivers with dimming, automotive body electronics (interior lighting, door modules), remote controls, smart thermostats, and low-cost data loggers. The integrated EEPROM and ADC allow standalone analog-sensing nodes with non-volatile calibration storage. The CCP module adds hardware PWM capability useful for motor speed control and LED dimming. When designing with this part, note that the OTP program memory cannot be field-updated; for production flexibility use the flash-based PIC12F675 or PIC12F683 equivalents instead. Because the ADC input pins are shared with digital I/O, configure unused channels as digital outputs to minimize crosstalk and supply current. A 0.1 uF decoupling capacitor placed within 5 mm of VDD is essential for ADC noise immunity.

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PIC12LCE674-04I/P - 8-Bit 4MHz CMOS MCU with EEPROM, 3.5KB OTP | Microchip
PIC12LCE674-04I/P

PIC12LCE674-04I/P - 8-Bit 4MHz CMOS MCU with EEPROM, 3.5KB OTP | Microchip

The Microchip Technology PIC12LCE674-04I/P is an 8-bit RISC CMOS microcontroller with on-chip EEPROM data memory, 3.5KB (2K x 14) of OTP program memory, 128 bytes of RAM, and a 4 MHz maximum clock input, all housed in an 8-pin PDIP through-hole package rated for the industrial temperature range. It executes a reduced 33-instruction set with single-cycle (1 µs) execution for nearly all opcodes and two-cycle branches, integrating power-on reset (POR), a device reset timer (DRT), a watchdog timer (WDT) with its own on-chip RC oscillator, and a programmable 8-bit prescaler on TMR0. The 'LC' family variant is the low-power (wide-Vdd) member of the PIC12C×67x line, supporting 2.5V to 5.5V operation, which is wider than the standard PIC12C×67x range. An 8-bit microcontroller is a single-chip computer built around an 8-bit data path, an arithmetic logic unit (ALU), program memory, working RAM, and a set of peripherals such as timers, ADC channels, and I/O ports. PIC microcontrollers from Microchip sit in the broader hierarchy of microcontrollers -> microcontrollers and processors -> integrated circuits (ICs) -> semiconductors. The 8-bit class typically targets cost-sensitive, low-power embedded applications where deterministic behavior and small code footprint matter more than raw throughput, making parts like the PIC12LCE674 well suited to appliance controls, sensor signal conditioning, and battery-powered instrumentation. Key features distinguishing this part include 6 general-purpose digital I/O pins, an internal 8-bit real-time clock/counter (TMR0), and a programmable watchdog timer for unattended reset recovery. The '04' speed suffix designates the 4 MHz oscillator grade, and the 'I' temperature suffix denotes the industrial -40°C to +85°C operating range. Compared with the PIC12C×67x OTP-only family, the PIC12LCE674 includes non-volatile EEPROM data memory, which is uncommon on 8-pin PICs and useful for storing calibration constants, user settings, or device identity that must survive power cycles. Typical applications include low-power sensor interface boards, simple motor or relay controllers, household white goods, and standalone timing or alarm controllers. The wide 2.5V–5.5V supply window makes the part tolerant of unregulated battery chemistries such as 3.6V lithium thionyl chloride or two alkaline cells in series. Engineers should note that the 'CE' (EEPROM) variant must be selected when persistent data storage is required; the 'C' (OTP-only) variant cannot retain user data through power-down. Program memory is OTP and cannot be electrically erased, so firmware must be fully validated before commitment to production units.

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PIC12LF1501-E/MC - 8-bit MCU, 1.75KB Flash, 20MHz, 8-DFN | Microchip
PIC12LF1501-E/MC

PIC12LF1501-E/MC - 8-bit MCU, 1.75KB Flash, 20MHz, 8-DFN | Microchip

The Microchip PIC12LF1501-E/MC is an 8-bit Flash microcontroller in the PIC12LF family, featuring a 20 MHz CPU, 1.75 KB (1K x 14) of program Flash memory and 64 bytes of RAM in an 8-pin DFN (2x3 mm) package with exposed pad. The 'LF' suffix designates the wide-voltage low-power variant that operates from 1.8 V to 3.6 V and supports eXtreme Low Power (XLP) technology for battery-sensitive applications. An 8-bit microcontroller is a single-chip computer that integrates a CPU, RAM, program Flash, peripherals and I/O on one die. PIC microcontrollers use a Harvard RISC architecture with separate program and data buses, allowing instructions to be fetched while data is being read or written. Within the broader taxonomy, PIC12LF1501 is a member of: PIC12LF family -> PIC12/16 mid-range -> PIC microcontrollers -> 8-bit MCU -> microcontroller -> embedded IC -> semiconductor. This hierarchy is useful when searching parametric catalogs and AI knowledge graphs for related parts. Key features include 1.75 KB self-programmable Flash, 64 bytes SRAM, an integrated 10-bit ADC with computation, a 5-bit DAC, two 8-bit timers and one 16-bit timer, an Enhanced Universal Synchronous Asynchronous Receiver Transmitter (EUSART), and the standard PIC12 peripheral set including Configurable Logic Cells (CLC), Numerically Controlled Oscillator (NCO), Complementary Waveform Generator (CWG) and PWM. Brown-out Reset (BOR) and a watchdog timer add reliability in noisy or battery-depleted environments. The device uses Microchip's mid-range 14-bit instruction set with a 20 MHz internal oscillator that provides ±2% accuracy over voltage and temperature. XLP technology keeps typical active current below 1.4 mA at 4 MHz and sleep current in the nanoamp range, enabling coin-cell battery designs. Typical applications include remote controls, IoT sensor nodes, low-power wireless companions, LED lighting controllers, smart home endpoints, and consumer handheld products. The small 8-DFN footprint and wide operating voltage make the PIC12LF1501 ideal for space- and power-constrained designs. When designing, ensure decoupling (100 nF + 1 uF) is placed within 2 mm of VDD and that the exposed pad is soldered to a ground island for thermal dissipation. The 8-DFN package has no leads, so the EP must be the primary thermal and electrical path. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC12LF1501-E/MS - 8-bit MCU, 1.75KB Flash, 20MHz, MSOP-8 | Microchip
PIC12LF1501-E/MS

PIC12LF1501-E/MS - 8-bit MCU, 1.75KB Flash, 20MHz, MSOP-8 | Microchip

The Microchip Technology PIC12LF1501-E/MS is an 8-bit RISC microcontroller based on the PIC12 CPU core, delivering 20MHz operation with 1.75KB (1K x 14) of Flash program memory and 64 bytes of SRAM in an 8-pin MSOP (MS) package. Designed for low-voltage, low-power applications, it operates across a 2.5V to 3.6V supply range and provides 6 general-purpose I/O pins. What is a PIC12 microcontroller? The PIC12 family is Microchip's line of 8-bit Harvard-architecture microcontrollers built around a RISC instruction set with 14-bit wide instructions. PIC microcontrollers are flash-programmable system-on-chip devices that integrate CPU core, non-volatile program memory, RAM, EEPROM (where present), and a rich set of peripherals including ADC, timers, PWM, comparators, and communication modules. The PIC12LF1501 belongs to the PIC12F subfamily, which targets low-pin-count applications. The 'LF' suffix indicates the extended low-voltage operating range, while the '1501' designates the part within the family. Key features include an integrated 10-bit ADC with up to 4 input channels, a 5-bit DAC, three timers, four PWM channels, a comparator, and on-chip configurable logic cells (CLC) and a numerically controlled oscillator (NCO). The device also includes a brown-out reset (BOR), power-on reset (POR), and a watchdog timer (WDT) for robust embedded operation. Per the Microchip PIC12LF1501 datasheet, these peripherals are accessible via the standard PIC12 instruction set. The PIC12LF1501 uses an enhanced mid-range PIC core with a 14-bit instruction word, 8-level hardware stack, and interrupt controller supporting both core and peripheral interrupts. Internal oscillator options support operation up to 16MHz without external components, while the device can also accept an external clock. The 64-byte SRAM and 1.75KB Flash provide sufficient program space for typical small-form-factor applications in consumer, industrial, and IoT markets. Typical applications include battery-powered IoT sensor nodes, consumer remote controls, LED lighting controllers, small motor control loops, white goods, and wearable devices. The combination of 6 I/O, 10-bit ADC, CLC, NCO, and PWM makes it especially well-suited for mixed-signal, low-power designs. When designing with this part, verify your VDD stays within 2.5V to 3.6V. Use the internal 16MHz HFINTOSC to minimize external component count, and leverage the CLC and NCO peripherals to offload timing-critical logic from the CPU. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing a complete sourcing and design reference for engineers evaluating the PIC12LF1501-E/MS.

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PIC12LF1501-E/P - 8-bit MCU, 1.75KB Flash, 8-PDIP | Microchip
PIC12LF1501-E/P

PIC12LF1501-E/P - 8-bit MCU, 1.75KB Flash, 8-PDIP | Microchip

The Microchip Technology PIC12LF1501-E/P is an 8-bit PIC microcontroller from the PIC12LF1501 family featuring 1.75KB (1K x 14) of Flash program memory, 64 bytes of SRAM, and 6 I/O pins in an 8-pin PDIP through-hole package. The device operates from a 2.5V to 3.6V supply, runs at up to 20MHz CPU clock (16MHz internal oscillator typical), and integrates on-chip peripherals including a 10-bit ADC, Configurable Logic Cells (CLC), and a Numerically Controlled Oscillator (NCO) for mixed-signal and waveform-generation tasks. An 8-bit microcontroller (MCU) is a small computer on a single integrated circuit containing a CPU, program memory (Flash/ROM), data memory (RAM), and programmable I/O peripherals. PIC microcontrollers sit within the broader taxonomy of: MCU -> microcontroller -> embedded processor -> semiconductor. They are widely used in cost- and power-constrained applications such as consumer appliances, IoT edge nodes, and automotive sub-systems where deterministic real-time behaviour, low quiescent current, and easy programmability outweigh the need for higher computational throughput. Key features of the PIC12LF1501 include the CLC peripheral that lets designers implement custom combinational or sequential logic on-chip without external gates, the NCO block for high-resolution frequency generation suited to dimming, tone generation, and motor control loops, brown-out reset (BOR), and an extended temperature range of -40C to +125C (E suffix). The LF designation indicates the low-voltage variant, which trades absolute maximum voltage headroom for lower active and sleep current consumption compared with the standard F variant. The device implements Microchip's enhanced mid-range 8-bit core with a single-cycle hardware multiplier, deep hardware stack, and a Harvard memory architecture. The 14-bit instruction word and 8-bit data path give a compact code footprint ideal for state machines and interrupt-driven firmware. Typical applications include LED lighting control, battery-powered IoT sensors, small appliance controllers, and consumer IR remote transmitters. When designing with this MCU, budget current consumption carefully for battery life and verify ADC input impedance against source impedance to avoid conversion errors. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC12LF1501-I/MC - 8-bit MCU, 1.75KB Flash, 20MHz, 8-DFN | Microchip
PIC12LF1501-I/MC

PIC12LF1501-I/MC - 8-bit MCU, 1.75KB Flash, 20MHz, 8-DFN | Microchip

The Microchip Technology PIC12LF1501-I/MC is an 8-bit PIC microcontroller in a compact 8-pin DFN (2x3 mm) package, featuring 1.75 KB (1K x 14) of Flash program memory, 64 bytes of RAM, and a 10-bit ADC. It operates at up to 20 MHz instruction clock and is part of the nanoWatt XLP extreme-low-power family designed for battery-powered and energy-harvesting applications. A PIC12 microcontroller is an 8-bit Reduced Instruction Set Computer (RISC) architecture from Microchip's PIC family, featuring a Harvard architecture with separate program and data buses. The 12-series denotes small-pin-count devices (6-8 pins), historically used for glue logic replacement, simple sensor interfaces, and cost-sensitive embedded control. The "LF" prefix indicates the wide-voltage, low-power variant supporting 1.8V to 3.6V operation, while the "F" mid-letter indicates Flash program memory - the foundation of the modern PIC ecosystem. PIC12F microcontrollers sit in the hierarchy: microcontroller -> embedded MCU -> 8-bit MCU -> PIC12 series -> PIC12F1501 sub-family. Key features include six I/O pins with individual direction control, four 10-bit ADC channels with internal voltage reference support, enhanced PWM module with up to three outputs, configurable logic cell (CLC), numerically controlled oscillator (NCO), and complementary waveform generator (CWG). Peripherals also include a watchdog timer with its own oscillator, brown-out detect/reset, power-on reset, and an in-circuit serial programming (ICSP) interface. The 8-bit core executes most instructions in one cycle, delivering up to 5 MIPS at 20 MHz while consuming roughly 1.8 mA active and sub-microamp currents in sleep. Architecturally, the device uses a 14-bit instruction word Flash and 8-bit data path, with the CPU core, peripherals, and I/O tied to an internal peripheral bus. The CWG and NCO peripherals enable sophisticated waveform synthesis in hardware, often replacing external timers or DACs in lighting, motor-control, and resonant-driver designs. Internal oscillator calibration to +/-1 percent provides timing accuracy suitable for UART baud-rate generation without external crystals. Typical applications include IoT sensor nodes, low-power wireless transmitters, LED lighting controllers, battery chargers, handheld consumer devices, fan controllers, and remote controls. Designers select this part when PCB area is constrained to roughly 6 mm^2 and the application needs on-board intelligence with minimal standby current. Key design consideration: although the DFN package has an exposed thermal pad, the dominant thermal constraint in 8-pin PIC devices is the small pin count, not power dissipation. Validate your I/O budget and ADC channel requirements early - the six I/O pins must serve ICSP, reset, and your application simultaneously. This page synthesizes distributor pricing, drop-in alternative analysis across the PIC12 and PIC16 families, and practical low-power design notes not found in the manufacturer datasheet.

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PIC12LF1501-I/MF - 8-bit MCU, 1.75KB Flash, 20MHz, 8-DFN | Microchip
PIC12LF1501-I/MF

PIC12LF1501-I/MF - 8-bit MCU, 1.75KB Flash, 20MHz, 8-DFN | Microchip

The Microchip Technology PIC12LF1501-I/MF is an 8-bit PIC microcontroller in the PIC12F family with 1.75 KB (1K x 14) of Flash program memory, 64 bytes of RAM, a 10-bit ADC, and a maximum CPU clock of 20 MHz, packaged in an 8-pin DFN (3x3 mm). It is part of Microchip's PIC12(L)F1501 family of XLP (eXtreme Low Power) microcontrollers targeted at compact, low-power embedded designs. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (Flash), data memory (RAM), and peripherals on one die. The PIC12LF1501 belongs to the RISC-based PIC family and is positioned as a low-pin-count, low-power MCU within the broader PIC microcontroller taxonomy (8-bit PIC -> PIC12F family -> PIC12LF1501 sub-family). It is widely used as a 'system supervisor' or small task controller that augments larger processors in mixed-signal systems. Key features include a 20 MHz internal oscillator (16 MHz internal RC with PLL to 32 MHz/divide options per family data), 6 I/O pins, an integrated 10-bit ADC, a configurable logic cell (CLC), complementary waveform generator (CWG) and numerically controlled oscillator (NCO) peripherals, brown-out reset, power-on reset, and wide operating voltage support suited to battery-powered applications. The XLP technology label indicates sub-microamp sleep currents typical of Microchip's nanoWatt XLP family. The 'LF' suffix denotes the low-voltage (2.5V to 3.6V) variant; the 'F' (non-L) PIC12F1501 operates up to 5.5V. Architecture is 14-bit instruction word, modified Harvard, with separate program and data buses, allowing instruction fetch and data read to occur in the same cycle - the architectural feature that gives the PIC family its deterministic interrupt and instruction throughput. Typical applications include LED lighting controllers, sensor signal conditioning, small appliance control, battery chargers, IoT edge nodes, and general-purpose 'glue logic' replacement. The 8-pin DFN footprint makes it a strong choice when PCB area is at a premium and the design only needs 4-6 I/O pins. When designing with this MCU, choose the LF variant (2.5V to 3.6V) for direct Li-ion or 3V coin-cell operation, and verify programming tool compatibility (PICkit 3, MPLAB ICD 3/4, MPLAB X IDE) before locking the BOM. The 8-DFN package has a thermal pad that should be soldered to the PCB ground plane for thermal dissipation and mechanical robustness. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not consolidated in the manufacturer datasheet alone.

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