Circuitos integrados

PIC12C672-04/SM

PIC12C672-04/SM - 8-Bit 4MHz OTP MCU 3.5KB | Microchip

The Microchip Technology PIC12C672-04/SM is an 8-bit PIC® 12C-series CMOS microcontroller with a 4 MHz instruction clock, 3.5 KB (2K × 14) of One-Time-Programmable (OTP) program memory, 128 bytes of RAM, and 6 I/O pins, housed in an 8-pin SOIJ (Small-Outline IC, J-leaded) surface-mount package. Background: An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, working RAM, and peripheral interfaces on one die. PIC® 12C parts sit at the low-pin-count end of Microchip's mid-range 8-bit PIC family, optimized for cost-sensitive embedded control where 6 GPIO, an 8-bit ADC, and timers are sufficient. The architecture is Harvard (separate program and data buses) and RISC-like, executing one instruction per oscillator cycle, which makes timing predictable for fixed-period control loops. Within the broader taxonomy: PIC12C672 -> PIC12C family -> PIC® mid-range 8-bit -> 8-bit MCU -> microcontroller -> embedded semiconductor. Key features include 4 MHz maximum operating frequency (the "-04" speed grade), 3.5 KB OTP program memory, 128 bytes of RAM, 6 bidirectional I/O pins multiplexed with analog and timer functions, an 8-bit analog-to-digital converter (ADC), one 8-bit timer/counter (TMR0), a watchdog timer with on-chip RC oscillator, power-on reset, and an internal 4 MHz RC oscillator option. The device operates from 3.0 V to 5.5 V and supports in-circuit serial programming (ICSP) through the standard two-pin ICSPCLK/ICSPDAT interface. Architecturally, the PIC12C672 uses a 14-bit instruction word, an 8-bit data path, and a two-stage pipeline, with each instruction completing in one instruction cycle (4 oscillator clocks at the 4 MHz rate). The OTP program memory allows one-time factory or in-circuit programming - once written, it cannot be erased, which is the primary distinction from flash-based PIC12F parts that share the same pinout. Typical applications include appliance control, sensor signal conditioning, LED driving, low-end remote controls, automotive sub-system modules, battery chargers, and any space-constrained embedded product that needs deterministic 8-bit processing with on-chip ADC. When designing with this part, account for its OTP memory by validating firmware on a windowed (JW) version before committing to production code. Plan I/O assignments carefully - GP3 is input-only and shares a pin with MCLR/VPP, which constrains both reset topology and I/O count. This page synthesizes distributor pricing across 13 channels, pin-compatible 8-pin PIC alternatives, and practical design notes not found in the standalone datasheet.

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PIC12C672-04E/MF

PIC12C672-04E/MF - 8-Bit 4MHz OTP MCU with ADC, 3.5KB | Microchip

The Microchip Technology PIC12C672-04E/MF is an 8-bit PICmicro RISC microcontroller with 3.5KB (2K x 14) of One-Time-Programmable (OTP) program memory, 128 bytes of RAM, and an integrated 4-channel 8-bit ADC, housed in an 8-pin DFN-S exposed-pad (6x5 mm) surface-mount package. The device runs at 4 MHz from a wide 2.5V-5.5V supply and features 5 general-purpose I/O lines, an internal oscillator, and an on-chip EEPROM data memory variant (PIC12CE672) for non-volatile parameter storage. The "04E" suffix designates 4 MHz operation over the enhanced -40C to +125C industrial temperature range, while "/MF" denotes the 8-pin DFN-S EP package supplied in tube. What is an 8-bit OTP microcontroller? An 8-bit OTP (One-Time-Programmable) MCU is a small, low-cost embedded controller that executes instructions on 8-bit data words and can be programmed exactly once. The PIC12C family sits in the hierarchy: microcontroller -> embedded MCU -> 8-bit MCU -> PIC12C baseline series, and is widely used where cost, small footprint, and deterministic interrupt response outweigh the need for reprogrammability or large memory. Key features include Harvard RISC architecture with 33 single-word instructions, 4-cycle instruction time at 4 MHz (1 us per instruction), a 4-channel 8-bit successive-approximation ADC, an internal 4 MHz RC oscillator, and an on-chip Power-on Reset / Brown-out Reset / Watchdog Timer. The device supports in-circuit serial programming (ICSP) through GPIO pins, allowing field programming even after board assembly. Typical applications include ultra-compact consumer appliances, battery-powered sensor nodes, automotive body controllers, simple closed-loop regulators, and low-cost replacement of discrete logic. The 8-pin DFN-S EP footprint is one of the smallest PIC packages available, making the part attractive for space-constrained designs where 4 MHz and 3.5KB of code are sufficient. When designing with this part, note that the "E" (extended) temperature grade and DFN-S EP package make it suitable for industrial and automotive under-hood environments, but the 8-pin footprint limits I/O to 5 lines plus GP3-only input. Designers should carefully plan ADC channel sharing, oscillator accuracy, and the OTP programming flow before committing the BOM.

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PIC12C672-04E/P

PIC12C672-04E/P - 8-bit MCU, 4MHz, 3.5KB OTP, 8-PDIP | Microchip

The Microchip Technology PIC12C672-04E/P is an 8-bit CMOS microcontroller from the PIC12C family, delivering 4 MHz operation with 3.5 KB (2K x 14) of One-Time-Programmable (OTP) program memory and 128 bytes of RAM. Housed in a through-hole 8-pin PDIP package, it exposes 6 digital I/O lines and integrates a 4-channel 8-bit ADC, internal RC oscillator, watchdog timer, and power-on reset. The "-04E" suffix denotes 4 MHz maximum clock and the "E" extended temperature grade of -40C to +125C, while "/P" identifies the PDIP package. A PIC (Peripheral Interface Controller) microcontroller is a Harvard-architecture RISC processor optimized for embedded control. The PIC12C family is Microchip's baseline 8-pin OTP MCU line, sitting within the broader PICmicro hierarchy: PIC12C -> 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. These devices target cost-sensitive applications where small footprint, low power, and integrated analog peripherals eliminate the need for external components. Key features of the PIC12C672 include a 4-channel 8-bit on-chip ADC with selectable reference, internal 4 MHz oscillator (no external crystal required), 25 mA source/sink per I/O, 2.5 V to 5.5 V wide operating voltage, and a hardware watchdog timer for reliable standalone operation. Power consumption is minimized through a SLEEP mode with wake-on-change capability, drawing microamp-level standby current. The PIC12C672 uses a 14-bit instruction word RISC core executing most instructions in a single 1 microsecond cycle (at 4 MHz). Its OTP program memory is factory or developer one-time programmable via ICSP (In-Circuit Serial Programming), making the device ideal for low-volume production, prototyping, and cost-driven consumer products where field reprogramming is not required. Typical applications include appliance controls, sensor signal conditioning, battery chargers, LED drivers, simple motor control, security sensors, and standalone analog front ends. Designers select this part when they need a tiny 8-pin footprint with built-in ADC and minimal BOM cost. When designing with the PIC12C672, ensure the ICSP clock and data pins (RB6/RB7) are accessible for programming. For ADC accuracy, place a 10 uF + 0.1 uF decoupling pair near VDD and use the internal voltage reference only after calibrating against VDD. This page synthesizes distributor stock, drop-in OTP and flash alternatives in the same 8-PDIP footprint, and design notes beyond what the manufacturer datasheet alone provides.

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PIC12C672-04I/MF

PIC12C672-04I/MF - 8-Bit 4MHz MCU, 3.5KB OTP, 8-DFN-S | Microchip

The Microchip Technology PIC12C672-04I/MF is a PIC PIC® 12C family 8-bit RISC microcontroller (MCU) operating at up to 4MHz with 3.5KB (2K x 14) of One-Time-Programmable (OTP) program memory, 128 bytes of RAM, and an integrated 4-channel 8-bit Analog-to-Digital (A/D) converter, housed in an 8-lead VDFN Exposed Pad surface-mount package (8-DFN-S, 6 x 5 mm). It is the industrial temperature grade variant of the PIC12C672, supporting an operating range of -40 °C to +85 °C with an internal oscillator. A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory, working RAM, and configurable peripherals designed for embedded control. The PIC12C family uses Microchip's 8-bit Harvard RISC architecture with a small instruction set optimized for deterministic, low-overhead execution in cost-sensitive applications. Within the broader taxonomy, the PIC12C672 sits at the entry level of the PICmicro hierarchy — a baseline OTP mid-range device positioned between simple 6-pin PIC10F controllers and the larger 14-/18-/28-pin PIC16F and PIC18F families. Key features include 3.5KB OTP program memory (2K x 14 words), 128 bytes of SRAM, 5 general-purpose I/O pins, an internal oscillator, and 4 channels of 8-bit A/D conversion. The 8-DFN-S (6 x 5 mm) package with an exposed thermal pad enables compact PCB layouts in space-constrained designs while providing adequate thermal dissipation for the industrial -40 °C to +85 °C operating range. Architecturally, the PIC12C672 uses a 14-bit instruction word, single-cycle ALU operations, and a hardware stack, allowing most instructions to execute in one oscillator cycle. The internal oscillator eliminates the need for external clocking components, and the 8-bit A/D converter with 4 input channels supports direct sensor interfacing for battery monitoring, signal conditioning, and simple closed-loop control. Typical applications include consumer electronics remote controls, small appliance controllers, sensor interface modules, battery-powered low-cost embedded products, and industrial auxiliary control where a 5-I/O, 8-bit, OTP-based controller delivers the right balance of integration and unit cost. When designing with this device, allocate the 8-bit A/D converter's reference voltage through a stable rail — noisy VDD will directly degrade conversion accuracy. Note that OTP memory cannot be reprogrammed; for in-field firmware updates, consider a flash-based PIC12F or PIC16F variant in the same pinout family. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet, giving buyers and design engineers a single, citable reference for the PIC12C672-04I/MF.

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PIC12C672-04I/SM

PIC12C672-04I/SM - 8-Bit 4MHz OTP MCU, 3.5KB | Microchip

The Microchip Technology PIC12C672-04I/SM is an 8-bit, 4 MHz, one-time-programmable (OTP) CMOS RISC microcontroller in an 8-pin SOIJ package with integrated 8-bit A/D converter. It packs 3.5 KB (2K x 14) of program memory, 128 bytes of RAM, 6 I/O pins, and a brown-out / power-on reset plus watchdog timer. The "-04" suffix denotes the 4 MHz instruction-clock speed grade, "I" denotes the industrial temperature range (-40C to +85C), and "/SM" denotes the 8-lead SOIJ (208-mil) surface-mount package. What is an 8-bit OTP microcontroller? An 8-bit microcontroller is a single-chip computer with an 8-bit data path, on-board non-volatile program memory (here, OTP EPROM), RAM, I/O peripherals, and a CPU. OTP means the program memory is one-time-programmable: the cell is blown once and cannot be erased, making the part ideal for high-volume, low-cost embedded products where firmware is finalized. Within Microchip's taxonomy, the PIC12C672 belongs to the PIC12C family (8-pin baseline/midrange), sits below the PIC16C in pin count, and uses the 14-bit instruction-word PIC16/17 RISC architecture. Key features of this part include a 4 MHz maximum oscillator input (200 ns instruction cycle), 4 MHz internal RC or external crystal/RC/HS oscillator options, a 4-channel 8-bit A/D converter, and an operating voltage range of 2.5 V to 5.5 V (-04 speed grade at 5 V typical). The device consumes under 2 mA active at 5 V/4 MHz and less than 1 µA in sleep. It is built on a fully-static CMOS process that holds registers and RAM across clock stop. Architecturally, the PIC12C672 uses a Harvard design with separate program and data buses, a 14-bit program word, and a single-accumulator ALU with W-register plus 32-byte file register map plus banked GPRs (128 bytes total). Peripherals include Timer0 with programmable prescaler, watchdog timer with dedicated RC oscillator, POR/BOR reset, and selectable code-protect bit. Typical applications for this part include low-cost appliance controls, battery chargers, sensor signal-conditioning front ends, automotive interior accessories, security keypads, and small white-goods motor controllers where the 6 I/O pins are sufficient and code stability is essential. The OTP memory and small footprint make it well suited to production volumes where mask-ROM is not economical. Design tip: Provide a clean VDD decoupling network (0.1 µF ceramic + 10 µF bulk) directly at the SOIJ pins and keep the MCLR/VPP trace short. When the device is configured for an external crystal or resonator, place the load capacitors within 5 mm of the OSC1/OSC2 pins to minimize EMI and start-up issues. This page synthesizes distributor pricing (as of 2026-09-15), verified drop-in PIC12C672 alternatives, and practical engineering guidance not found in the bare datasheet.

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PIC12C672-10/P

PIC12C672-10/P - 8-Bit 10MHz 3.5KB OTP MCU 8-PDIP | Microchip

The Microchip Technology PIC12C672-10/P is an 8-bit CMOS OTP-based microcontroller in the PIC12C family, delivering 10 MIPS at a 10 MHz oscillator input (400 ns instruction cycle) in an 8-pin PDIP through-hole package. It integrates 3.5 KB (2K x 14) of one-time-programmable program memory, 128 bytes of RAM, and a 4-channel 8-bit analog-to-digital converter (ADC) on-chip, all within a compact 8-pin footprint. What is an 8-bit OTP microcontroller? An 8-bit OTP microcontroller is a single-chip computer built around an 8-bit data path with non-volatile program memory that can be written once and is thereafter read-only, typically used in cost-sensitive, low-to-medium volume embedded products. The PIC12C672 belongs to the PICmicro mid-range family, sitting in the taxonomy microcontroller -> embedded controller -> 8-bit MCU -> CMOS OTP MCU -> PIC12C series, and forms part of Microchip's PIC architecture lineage of RISC microcontrollers. Key features include 35 single-word instructions, only 12 of which are single-cycle, plus an 8-bit timer/counter (TMR0) with an 8-bit programmable prescaler, a watchdog timer with its own on-chip RC oscillator for reliable operation, power-on reset, brown-out detection, power-saving sleep mode, and an in-circuit serial programming interface. The 6 general-purpose I/O pins are multiplexed with the four ADC channels, providing flexibility in mixed analog/digital designs. The architecture uses a Harvard design with separate program and data buses, allowing instruction fetch and operand read to occur in the same cycle. The CMOS process combined with nanoWatt technology keeps active current around 2 mA at 5V/4 MHz and quiescent current below 1 uA in sleep, making the PIC12C672-10/P appropriate for battery-powered or always-on sensor nodes. Typical applications include consumer appliance controllers, sensor signal conditioning, simple motor drives (small DC fans, solenoids), battery chargers, and low-end automotive body electronics. The wide 2.5V-5.5V operating range supports both 3V lithium and 5V regulated supplies. When designing with this part, account for its OTP memory - firmware revisions require a new device - and ensure decoupling is placed within 1 cm of VDD with a bulk capacitor at the board supply input. This page synthesizes verified distributor pricing, parametric drop-in alternatives, and applied design notes not consolidated in the manufacturer datasheet alone.

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PIC12C672-10/SM

PIC12C672-10/SM - 8-bit CMOS MCU, 3.5KB OTP, 10MHz, SOIJ-8 | Microchip

The Microchip Technology PIC12C672-10/SM is an 8-bit, fully-static CMOS microcontroller based on Microchip's PIC16/17 RISC architecture, packaged in an 8-pin SOIJ (SM) tube package. It integrates a 10-bit A/D converter, 3.5KB of one-time-programmable (OTP) program memory, 128 bytes of RAM, and 6 digital I/O pins, all on a single chip. The device executes instructions in a 400 ns cycle at 10 MHz and operates from a 2.5V to 5.5V supply, making it suitable for both 3.3V and 5V systems. What is an 8-bit OTP microcontroller? It is a small, low-cost CMOS RISC microcontroller that uses one-time-programmable non-volatile memory to store firmware, an integrated ADC for analog signal acquisition, and a Harvard architecture (separate program and data buses) for deterministic instruction timing. In the broader taxonomy, OTP microcontrollers sit between mask-ROM MCUs (lowest unit cost, factory programmed) and Flash MCUs (re-programmable, higher unit cost), and they belong to the larger family of embedded microcontrollers (MCU -> microprocessor -> semiconductor). They are widely used in cost-sensitive, low-pin-count, high-volume products where field firmware updates are unnecessary. Key features of the PIC12C672-10/SM include six I/O pins, four 8-bit A/D channels (10-bit resolution, multiplexed onto I/O pins), power-on-reset (POR), a watchdog timer (WDT) with on-chip RC oscillator, an internal 4 MHz RC oscillator, selectable oscillator modes (RC, XT, LP, HS, INTOSC), and code protection via fuse bits. Power-down (SLEEP) mode draws only microamp-level current, enabling battery-friendly designs. The 35 single-word instruction set is fully upward compatible with the PIC16 family, simplifying code reuse across Microchip devices. Technically, the PIC12C672-10/SM uses a 14-bit instruction word with a 2-stage pipeline and direct/indirect/relative addressing modes. Its interrupt structure handles four sources (external GP2/INT, TMR0 overflow, GPIO change, A/D conversion complete). The integrated ADC provides 10-bit resolution with a 4-channel multiplexer (AN0-AN3), adequate for sensor conditioning such as thermistor or potentiometer reads. The SOIJ (SM) surface-mount package is more compact than a standard SOIC, freeing board area in space-constrained assemblies. Typical applications include battery chargers, appliance controllers, sensor interface front-ends, small signal-conditioning front-ends, smart-card readers, and consumer products where 6 I/O pins suffice. Designers value the PIC12C672-10/SM when 10-bit ADC and 35-instruction simplicity are enough, and where the cost advantage of OTP over Flash outweighs the lack of in-system reprogrammability. When designing with this device, note that OTP cannot be re-programmed in-circuit. Designers must pre-program the device using a device programmer such as the MPLAB PM3 before PCB assembly. Leave the MCLR/VPP pin accessible for factory programming, and provide a 10 kohm pull-up to VDD. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on the manufacturer datasheet.

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PIC12C672-10E/SM

PIC12C672-10E/SM - 8-Bit 10MHz MCU, 3.5KB OTP, 8-SOIJ | Microchip

The Microchip PIC12C672-10E/SM is a low-cost, high-performance, CMOS, fully-static 8-bit microcontroller from the PIC12C67x family, delivering 10 MIPS of performance at 10 MHz while integrating a 4-channel 8-bit A/D converter on-chip. The device ships in an 8-pin SOIJ (SO-IC, 0.209" / 5.30 mm body) surface-mount package, features 3.5 KB of OTP program memory (2K x 14 words), 128 bytes of RAM, and 6 general-purpose digital I/O pins with multiplexed analog functions. Operating from 2.5 V to 5.5 V supply with an extended temperature grade ("E") of -40 °C to +125 °C, the PIC12C672-10E/SM targets space-constrained and cost-sensitive embedded designs where an integrated ADC eliminates external components. An 8-bit microcontroller (MCU) is a self-contained computing subsystem built around an 8-bit data path, integrating CPU, program memory, RAM, peripherals and I/O into a single package. PIC microcontrollers belong to the microcontroller family -> embedded IC -> semiconductor hierarchy and use a Harvard RISC architecture with separate program and data buses. The 12-bit instruction word of the PIC12 line keeps code density high, while the integrated ADC, timer, watchdog and reset circuitry reduce external part count for sensor-interface, appliance and low-volume industrial applications. Key features include a 33-instruction RISC instruction set, 8-bit ADC with 4 input channels and selectable reference, power-on reset (POR), brown-out detection (BOD), power-saving SLEEP mode, watchdog timer with on-chip RC oscillator, and In-Circuit Serial Programming (ICSP) via GP0/GP1. The device is fully static, supporting DC operation down to battery-saver sleep currents. CMOS process technology minimizes active and standby power, while the 8-SOIJ footprint supports hand-solderable prototyping as well as high-density SMT production. Architecture-wise, the PIC12C672 uses a 14-bit-wide instruction ROM, an 8-bit data path, two 8-bit timers (TMR0, TMR1 optional depending on die revision) and a hardware UART implemented in firmware via the USART module. The integrated ADC supports 8-bit conversion with 4 multiplexed channels on GP0–GP3; remaining GPIOs (GP4, GP5) remain digital. The 33 single-word/cycle instructions simplify C and assembly coding for deterministic interrupt-driven firmware, while the 2-wire ICSP interface enables programming after PCB assembly. Typical applications include battery chargers, sensor signal-conditioning front-ends, appliance control boards, low-cost instrumentation, automotive interior accessories (via the extended E temp grade), and white-goods user-interface modules. The 8-pin SOIJ is also well-suited to replace discrete logic/analog signal chains with a single programmable device. Designers should bias the analog supply reference carefully: tie ADC VREF to VDD if absolute accuracy is not critical, or use a low-noise external reference for precision conversions. Reserve GP0/GP1 for ICSP whenever possible, since these pins are also the only programming interface after PCB assembly. This page synthesizes distributor pricing, drop-in alternatives, parametric comparison, and practical design notes that are not consolidated on a single manufacturer datasheet page.

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PIC12C672-10I/MF

PIC12C672-10I/MF - 8-bit MCU, 3.5KB OTP, 10MHz, 8-DFN-SMD | Microchip

The Microchip Technology PIC12C672-10I/MF is an 8-bit RISC microcontroller in the PIC12C family, offering 3.5KB (2K x 14) of One-Time-Programmable (OTP) program memory, 128 bytes of RAM, and 4 channels of 8-bit Analog-to-Digital conversion, packaged in an 8-pin DFN-S (6x5 mm) surface-mount case. The device operates from a 3.0 V to 5.5 V supply and supports a maximum clock rate of 10 MHz with an internal oscillator, providing 5 GPIO pins plus a MCLR reset line. A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, working RAM, and peripherals such as ADC, timers, and I/O. Within the broader component hierarchy, the PIC12C672 belongs to the 8-bit microcontroller category, which sits under embedded processors, which in turn fall under microcontrollers and then integrated circuits. The PIC12C family specifically targets cost-sensitive, pin-constrained designs where a true 8-pin footprint with on-chip A/D and oscillator removes the need for external crystals or analog front-ends. Key features of the PIC12C672-10I/MF include 4x8-bit ADC channels multiplexed onto the available pins, power-on reset (POR) and watchdog timer (WDT) for unattended reliability, an internal 4 MHz RC oscillator (with optional external clock), and the industry-standard 14-bit instruction set shared across the PIC12C/PIC16C midrange architecture. Industrial temperature grade (-40°C to +85°C, suffix "I") makes this part suitable for harsh-environment designs, and the OTP program memory suits low-volume production and prototype runs where in-system programmability is not required. The architecture is based on Microchip's enhanced mid-range 8-bit core with a Harvard-style separate code/data bus, a hardware stack, and 35 single-word instructions. This RISC approach yields deterministic instruction timing, which is valuable for real-time control loops. The 128-byte file-register RAM is shared with general-purpose working registers, and the ADC uses successive approximation with the device's Vdd as the reference by default. Typical applications include battery-powered sensor nodes, automotive sub-system controllers, small appliance control boards, smart-card and metering front-ends, and consumer white goods where 5 GPIO pins and 4 ADC channels are sufficient. The internal oscillator and integrated ADC allow BOM reduction by eliminating an external resonator and external analog MUX. When designing with the PIC12C672-10I/MF, allocate the MCLR pin as a reset input (or tie to Vdd through a resistor for normal operation), and ensure that code protection bits are configured before OTP programming to prevent unintended reads. Note that OTP variants cannot be reprogrammed, so firmware must be fully validated in advance using a windowed (JW) sample or a compatible flash variant such as the PIC12F675 for development. This page synthesizes current distributor pricing, drop-in and family alternatives, pin-level replacement guidance, and practical design notes not aggregated on the manufacturer datasheet or individual distributor listings, providing a single engineering reference for the PIC12C672-10I/MF.

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PIC12C672-10I/P

PIC12C672-10I/P - 8-Bit 10MHz OTP MCU 3.5KB | Microchip

The Microchip Technology PIC12C672-10I/P is an 8-bit PIC® 12C-series CMOS microcontroller with 3.5 KB (2K x 14) one-time programmable (OTP) program memory, 128 bytes of RAM, and a 4-channel 8-bit A/D converter, housed in an 8-pin PDIP through-hole package. It executes instructions at 10 MHz (200 ns instruction cycle), operates from 3.0 V to 5.5 V, and supports an industrial -40 °C to +85 °C temperature range, as designated by the "I" suffix. A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, working RAM, and peripheral blocks such as timers, communication ports, and A/D converters on one silicon die. Within the broader taxonomy, the PIC12C672 sits under 8-bit microcontroller -> RISC microcontroller -> embedded controller -> semiconductor IC, and is positioned in Microchip's PIC12 mid-range family as a compact, OTP-only variant optimized for cost-sensitive, low-I/O-count applications. Key features include an internal 4 MHz RC oscillator (selectable), power-on reset (POR), brown-out detection, a watchdog timer (WDT), an 8-bit timer/counter, and four multiplexed analog input channels. The 6 general-purpose I/O pins (5 digital + 1 input-only) make it suitable for glue logic replacement and small sensing/control loops. The 10 MHz version is the standard speed grade; the "-04" suffix denotes the 4 MHz speed grade. Architecturally, the PIC12C672 uses a Harvard RISC core with a 14-bit instruction word, 8-bit data path, single-cycle instruction execution (except branches), and a two-stage pipeline. The OTP EPROM program memory supports one-time field programming, with the blank/erasable variant supplied in windowed CERDIP (JW package) for code development. Typical applications include appliance control, sensor signal conditioning, battery chargers, small SMPS control loops, automotive body electronics (non-safety), smart sensors, and 4-channel data-acquisition front-ends. The small 8-pin footprint suits retrofit designs and space-constrained PCB assemblies. When designing with this device, allocate one I/O pin to MCLR/VPP for in-circuit serial programming (ICSP) if field updates are required. Place a 100 nF decoupling capacitor within 5 mm of VDD, and ensure the analog supply is clean if using the A/D converter. Watchdog timer enable/disable must be configured via configuration bits at program time.

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PIC12C672/JW

PIC12C672/JW - 8-Bit 10MHz MCU, 3.5KB EPROM, UV Windowed CDIP-8

The Microchip Technology PIC12C672/JW is an 8-bit CMOS RISC microcontroller from the PIC12C family, packaged in an 8-lead windowed Ceramic DIP (8-CDIP) with a UV-erasable EPROM program memory of 3.5 KB (2K x 14 words). It operates at up to 10 MHz instruction rate and integrates 128 bytes of RAM, an 8-bit A/D converter with four input channels, six general-purpose I/O pins, and Microchip's standard PIC16/17-derived core with 14-bit instruction width. What is an 8-bit microcontroller? An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, volatile data memory, and peripherals onto one piece of silicon. The PIC12C family occupies the low-pin-count, low-cost tier of Microchip's PIC product line and is widely used in legacy, prototyping, and cost-sensitive embedded applications where a small footprint and minimal I/O are sufficient. Key features include a 10 MHz maximum clock rate, 3.3 V to 5.5 V single-supply operation, four-channel 8-bit ADC, watchdog timer with on-chip RC oscillator, power-on reset, internal/external oscillator options, and in-circuit serial programming. The /JW suffix specifically designates the ceramic-windowed package - the package lid is a fused quartz window that allows UV erasure of the EPROM, making the device reusable during development and educational workflows. The PIC12C672 uses a 14-bit wide instruction word architecture with single-word/single-cycle execution for most opcodes, providing deterministic throughput at 100 ns per instruction at 10 MHz. Its Harvard architecture separates program and data buses, and the 8-level deep hardware stack plus 32-byte register file make it well suited for small control loops in motor control, sensor interfacing, and timing applications. Typical applications include hobbyist electronics, university embedded-systems training, prototype development of legacy products, low-cost appliance control, and firmware development where UV-erase/reprogram cycles are required. The windowed package makes it ideal for educational environments that need to erase and reprogram the same physical part many times. When designing with this part, note that the ceramic windowed CDIP-8 package is intended primarily for prototyping and development, not for high-volume production - the /P, /SO, or /SM plastic package variants are preferred for manufactured products. Because the part is reported as obsolete by multiple distributors, lead-time risk should be assessed for new designs. This page synthesizes distributor pricing, datasheet references, drop-in windowed and OTP alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single source for evaluating the PIC12C672/JW for both legacy maintenance and new educational designs.

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PIC12C672T-04E/SM

PIC12C672T-04E/SM - 8-bit PIC MCU 3.5KB OTP 4MHz | Microchip

The Microchip Technology PIC12C672T-04E/SM is an 8-bit PIC RISC microcontroller with 3.5KB (2K x 14) One-Time Programmable (OTP) program memory, 128 bytes of RAM, and an integrated 8-channel 8-bit A/D converter, packaged in an 8-pin SOIJ (SM) surface-mount form factor and rated for 3.3V/5V operation at a maximum clock speed of 4 MHz. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, and configurable peripherals into one package. The PIC12C672 belongs to the 8-bit PIC10/12 family, which sits within the broader PICmicro RISC architecture hierarchy: 8-bit MCU -> PICmicro -> microcontroller -> embedded IC -> semiconductor. The "T" suffix indicates tape-and-reel packaging, "-04" denotes the 4 MHz maximum clock, "E" indicates the Extended commercial temperature range, and "/SM" specifies the 8-lead SOIJ package with 5.30 mm body width. Key features include 33 single-word instructions (most single-cycle), 14-bit instruction word, 8-level deep hardware stack, 4 oscillator options (RC, LP, XT, HS), a watchdog timer with on-chip RC oscillator for reliable operation, programmable code protection, power-on reset, power-saving Sleep mode, and in-circuit serial programming via two pins (GP0/GP1). The integrated analog-to-digital converter (ADC) provides up to 4 analog input channels multiplexed with digital I/O pins, with 8-bit resolution. The PIC12C672 employs a Harvard RISC architecture with separate code and data buses, enabling simultaneous instruction fetch and data access. Its OTP EPROM program memory stores firmware that is programmed once at production time, making the part well suited to high-volume embedded products. The CMOS design provides very low power consumption - typical supply current is below 2 mA active at 4 MHz and below 1 uA in Sleep mode. Typical applications include low-cost consumer appliances, sensor signal conditioning with on-chip ADC, automotive interior sub-modules, battery-powered instruments, simple motor-control PWM signal generation, and replacement of discrete logic. The wide 2.5V-5.5V operating range and extended -40C to +125C temperature range also support industrial and harsh-environment designs. When designing with this MCU, reserve GP0 and GP1 for ICSPCLK/ICSPDAT if in-circuit programming is required in the field. The internal 4 MHz RC oscillator (INTRC) option eliminates external components but requires the calibration word to be retained for accuracy. This page combines Microchip datasheet specifications, drop-in OTP/EPROM equivalents in the PIC12C67x family, and practical design notes compiled from the PIC12C67x datasheet family - giving engineers a single reference for sourcing, replacing, and laying out this 8-pin MCU.

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PIC12C672T-04I/SM

PIC12C672T-04I/SM - 4MHz 8-Bit OTP MCU, 3.5KB | Microchip

The Microchip PIC12C672T-04I/SM is an 8-bit, fully-static, CMOS PIC microcontroller housed in an 8-pin SOIJ surface-mount package, integrating a 4-channel 8-bit A/D converter alongside 3.5 KB (2K x 14) of one-time-programmable (OTP) program memory and 128 bytes of RAM. It runs at 4 MHz with a 1 us instruction cycle, operates from 3.0 V to 5.5 V, exposes 6 I/O pins, and supports the industrial -40C to +85C temperature range with the 'I' grade. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, RAM, and peripherals such as timers, communication interfaces, and analog converters into one IC. Within the broader semiconductor taxonomy, a microcontroller sits inside the integrated-circuit family, below microprocessors in raw compute power but above simple logic ICs in functional density. The PIC12C67X family from Microchip is part of the PIC10/12/16 mid-range 8-bit RISC architecture, optimized for low-cost, low-pin-count embedded control. Compared with discrete logic or op-amp-only signal chains, a PIC12C-class MCU consolidates analog sampling, digital I/O, and on-chip program memory into one package, reducing BOM count and PCB area. Key features include 35 single-word instructions, a hardware 8-bit ADC with four input channels multiplexed onto GP pins, internal 4 MHz oscillator, power-on-reset, watchdog timer with on-chip RC oscillator for reliable operation, and an In-Circuit Serial Programming (ICSP) interface that allows firmware updates after PCB assembly. Power-saving features include a SLEEP mode and selectable oscillator options. The device is fully static, allowing the clock to be stopped without losing register contents. The PIC12C672's mid-range RISC core executes most instructions in a single 1 us cycle at 4 MHz, freeing CPU bandwidth for tight control loops. With a 14-bit instruction word, 8-bit data path, and on-chip peripherals, the device targets simple but deterministic embedded tasks. The OTP program memory supports a development-to-production workflow, while the SOIJ-8 surface-mount package enables standard SMT assembly and inspection. Typical applications include appliance control, sensor signal conditioning, battery chargers, automotive body electronics (non-safety), smart sensors, and small industrial controllers. The combination of an integrated ADC, low pin count, and broad development-tool support makes the part a frequent choice for cost-sensitive designs. When designing with this device, ensure the MCLR pin has a proper pull-up and decoupling, and respect the maximum power-supply ramp rate to avoid unintentional reset states. For long-term field-programmable designs, consider the PIC12F675 (Flash variant) in a comparable 8-pin footprint. This page synthesizes distributor pricing, drop-in alternatives from the same PIC12 family, and practical design notes not found in the manufacturer datasheet alone.

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PIC12C672T-10/SM

PIC12C672T-10/SM - 8-Bit 10MHz 3.5KB OTP MCU | Microchip

The Microchip Technology PIC12C672T-10/SM is an 8-bit CMOS RISC microcontroller with an integrated 10-bit A/D converter, 3.5KB (2K x 14) of One-Time Programmable (OTP) program memory and 128 bytes of RAM, operating at 10 MHz in an 8-pin SOIJ surface-mount package. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and peripherals on one die. The 8-bit PIC® 12C family sits at the low end of the Microchip PIC microcontroller hierarchy, below PIC16 and PIC18, and is intended for cost-driven, space-constrained embedded applications where a small pin count and a simple RISC instruction set are sufficient. The 12C67X sub-family adds an on-chip ADC that distinguishes it from the PIC12C5XX base series. Key features of the PIC12C672 include 5 to 6 general-purpose I/O pins (depending on oscillator configuration), a 4-channel 8-bit A/D converter, power-on reset (POR), a watchdog timer (WDT), an internal 4 MHz RC oscillator option, and a wide operating voltage range of 2.5V to 5.5V. The RISC architecture executes most instructions in a single 200 ns cycle at 10 MHz, delivering up to 5 MIPS throughput. Technically, the PIC12C672 uses a Harvard architecture with separate program and data buses, a 14-bit wide instruction word, and a two-stage pipeline. The 3.5KB OTP EPROM supports field programming via Microchip ICSP (In-Circuit Serial Programming) for prototype and low-volume production, while the 128-byte SRAM is shared with the stack. With a 5-year minimum retention rating on the OTP array, the PIC12C672 targets designs that require firmware stability without flash reprogrammability. Typical applications include appliance control, sensor signal conditioning, low-end consumer electronics, automotive body controllers, simple battery chargers, and standalone A/D monitoring front-ends. Its 8-pin SOIJ footprint makes it suitable for designs where PCB area is at a premium. When designing, note that the OTP memory cannot be reprogrammed in-circuit, so production code must be fully validated before programming. Decoupling and oscillator layout follow standard PIC12C practice and are covered in the manufacturer datasheet. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that are not available from the manufacturer datasheet alone.

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PIC12C672T-10E/SM

PIC12C672T-10E/SM - 8-Bit 10MHz MCU 3.5KB OTP SOIJ-8 | Microchip

The Microchip Technology PIC12C672T-10E/SM is an 8-bit CMOS PIC microcontroller operating at 10 MHz, featuring 3.5 KB (2K x 14) of One-Time Programmable (OTP) program memory, 128 x 8 bytes of RAM, and an integrated 4-channel 8-bit A/D converter, all packaged in an 8-SOIJ surface-mount SOIJ package. A microcontroller (MCU) is a single-chip computer containing a processor core, program memory, working RAM, and configurable I/O peripherals. Within the broader semiconductor hierarchy, an MCU belongs to the integrated circuit family; it sits between a microprocessor (which needs external memory) and an ASIC (which typically lacks user-programmable firmware). The PIC12C family specifically targets cost-sensitive 8-pin applications where board space is constrained and where the low pin count is compensated by software-driven peripheral sharing. Key features of the PIC12C672T-10E/SM include a RISC-based Harvard-architecture core executing most instructions in a single 200 ns cycle (at 10 MHz), 5 user-configurable I/O pins, an internal 4 MHz oscillator option (in addition to the external clock), a 4-channel 8-bit A/D converter, and a wide 2.5 V to 5.5 V operating voltage range. The on-chip watchdog timer and power-on reset simplify firmware reliability. Architecturally, this part is part of the PIC12C67X sub-family, which pairs OTP program memory with A/D conversion. The PIC12CE67X variants in the same family add 16 bytes of EEPROM data memory. The "T" suffix denotes Tape & Reel packaging, the "10" denotes 10 MHz operation, the "E" suffix denotes an Enhanced industrial temperature grade (-40C to +125C), and "SM" denotes the SOIJ-8 (Small Outline In-line J-lead, 8-pin) package. The 8-SOIJ footprint allows J-lead surface-mount soldering with a lower profile than conventional SOIC. Typical applications include low-cost appliance controllers, sensor signal conditioning with on-chip A/D, LED drivers with PWM, simple battery-powered timers, automotive body electronics (in the extended temperature grade), and hobby/educational projects that benefit from Microchip's mature MPLAB toolchain and PICkit programmers. When designing with this part, ensure the oscillator configuration and the A/D reference are correctly set in the configuration bits, and always place a 0.1 uF decoupling capacitor as close as possible to VDD. The OTP memory means firmware cannot be updated in-circuit; for production this requires careful pre-programming using MPLAB PM3 or compatible device programmers. This page consolidates distributor pricing, drop-in same-package alternatives from the same PIC12C67X family, and practical design notes that go beyond the manufacturer datasheet itself.

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PIC12C672T-10I/SM

PIC12C672T-10I/SM - 10MHz 8-bit MCU 3.5KB OTP 6 I/O SOIJ

The Microchip Technology PIC12C672T-10I/SM is a low-cost, high-performance CMOS, fully-static 8-bit PIC microcontroller integrating an analog-to-digital converter and 3.5KB (2K x 14) of One-Time Programmable (OTP) program memory in an 8-pin SOIJ surface-mount package. It operates at up to 10MHz instruction-clock speed, includes 128 bytes of RAM, and exposes 6 general-purpose I/O pins (5 GPIO + 1 input-only). On-chip peripherals include an 8-bit ADC, Power-On Reset (POR), Watchdog Timer (WDT), and a 4-channel 8-bit ADC. A microcontroller (MCU) is a single-chip computer containing a CPU core, non-volatile program memory, volatile data memory (RAM), and integrated peripherals such as timers, communication interfaces, and ADCs. Within the broader taxonomy, the PIC12C672 sits in the microcontrollers hierarchy (MCU > 8-bit MCU > PIC > PIC12C family). It executes one instruction per internal clock cycle (RISC architecture), enabling deterministic timing suitable for low-power embedded control. Key features include 3.3V/5V dual-voltage operation, an industrial -40C to +85C operating range, brown-out detect, and on-chip RC oscillator. The PIC12C672 is part of Microchip's baseline PIC12 family designed for cost-sensitive applications where small footprint and minimal external components are essential. The architecture is a Harvard RISC core with 14-bit instruction width, separate program and data buses, and a 33-instruction set. The 8-bit ADC uses successive approximation with four multiplexed input channels, suitable for sensor readout at modest sampling rates. Typical applications include battery chargers, sensor interfaces, LED drivers, and small consumer appliances. When designing with this device, ensure the MCLR reset circuit uses a proper RC network or dedicated reset supervisor, and verify ADC acquisition time settings match source impedance.

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PIC12CE518-04/P

PIC12CE518-04/P - 8-Bit 4MHz MCU 768B OTP 6 I/O | Microchip

The Microchip Technology PIC12CE518-04/P is an 8-bit CMOS microcontroller based on the Enhanced PIC16C5X core, integrating 768 bytes of OTP program memory and 25 bytes of RAM in an 8-pin PDIP through-hole package. It executes instructions at 4 MHz with a 1 us per instruction cycle, providing 33 single-word RISC instructions, and features 6 digital I/O pins plus a serial EEPROM data memory interface. Operating from 3.0 V to 5.5 V, the device is well suited for compact, low-cost embedded control applications where board space and BOM simplicity are critical. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, I/O peripherals, and often non-volatile storage on one IC. The PIC12CE518 belongs to the PIC12C5xx family of 8-bit microcontrollers, which sits within Microchip's broader PIC microcontroller hierarchy: PIC10/12/16/18 8-bit MCUs -> 8-bit microcontrollers -> microcontrollers (MCU) -> microprocessors and microcontrollers -> semiconductors. The 8-bit RISC PIC architecture is widely used in industrial, automotive, consumer, and appliance applications because it is deterministic, easy to program, and supported by a mature toolchain (MPLAB X IDE, XC8 compiler). Key features include 768 bytes (512 x 12 words) of One-Time-Programmable (OTP) EPROM, 25 bytes of data RAM, internal 4 MHz RC oscillator, power-on reset, watchdog timer, and on-chip EEPROM data memory for non-volatile parameter storage. The PIC12CE518-04/P specifically refers to the 4 MHz speed grade and the plastic DIP (PDIP-8) package, intended for through-hole prototype and production designs. Typical applications span low-end appliance control, IR remote controls, simple sensor interfaces, battery chargers, lighting controllers, and general-purpose glue-logic replacement where a tiny MCU adds configurability at minimum cost. When designing with this device, ensure that all unused I/O pins are configured as outputs and tied low to minimize power consumption. OTP memory means the program is committed during the manufacturing process, so the final firmware must be fully validated before programming. For new designs Microchip recommends the PIC12F629 successor, which provides flash memory and additional peripherals at a comparable price point. This page consolidates distributor pricing, parametric alternatives, and design considerations to help engineers evaluate the PIC12CE518-04/P for both legacy support and new cost-sensitive designs.

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PIC12CE518-04E/SM

PIC12CE518-04E/SM - 8-Bit 4MHz OTP MCU, 768B | Microchip

The Microchip Technology PIC12CE518-04E/SM is an 8-bit, fully-static, EPROM/OTP-based CMOS microcontroller from the PIC12C5xx family, offered in an 8-pin SOIJ package with 4 MHz maximum operating frequency. It integrates 768 bytes (512 x 12) of program memory, 25 bytes of RAM, 16 bytes of EEPROM data memory, and 6 I/O pins, making it suited to compact, low-cost embedded control tasks. The device is specified for the extended temperature range (-40C to +125C), denoted by the "E" suffix, and ships in a tube-friendly SOIJ (Small Outline Integrated J-lead) surface-mount package. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, working RAM, non-volatile data memory, and programmable I/O peripherals into one package. PIC microcontrollers from Microchip use a RISC (Reduced Instruction Set Computer) architecture with only 33 single-word/single-cycle instructions, which simplifies coding, accelerates execution, and keeps interrupt latency predictable. Within the broader microcontroller taxonomy, PIC12CE518 belongs to: microcontroller -> 8-bit MCU -> PIC10/12/16 family -> PIC12C5xx sub-family -> PIC12CE5xx (with EEPROM data memory). This OTP/EPROM-programmed part targets cost-sensitive applications where one-time programmable memory is acceptable. Key features include a 4 MHz internal RC oscillator with programmable calibration, four oscillator selections for flexible clocking, 25 mA source/sink capability per I/O, and 1 us instruction execution. The device also integrates Power-on Reset (POR), a Watchdog Timer (WDT), and a brown-out reset (BOR) variant option, reducing external component count. Compared with the ROM/EPROM-only PIC12C508, the PIC12CE518 adds 16 bytes of user EEPROM data memory, enabling storage of calibration constants, serial numbers, or runtime configuration without external parts. Typical applications include low-end consumer electronics, appliance controllers, simple sensor signal-conditioning, LED driver sequencers, automotive interior modules, and battery-powered handheld devices. Because Microchip has flagged this part with the message "A newer device is available. Please consider PIC12F629", engineers designing new products should evaluate the flash-based PIC12F629 as a modern replacement while supporting existing production lines that rely on the legacy PIC12CE518. When designing with this part, note that OTP memory cannot be re-programmed; programming must be performed before final assembly. The 6 I/O pins are shared with oscillator and reset functions, so application firmware must configure the CONFIG register correctly. For new designs, the recommended successor is PIC12F629 (flash memory, wider feature set).

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PIC12CE518-04E/SN

PIC12CE518-04E/SN - 8-bit OTP MCU, 768B EPROM, 4 MHz | Microchip

The Microchip Technology PIC12CE518-04E/SN is an 8-pin, 8-bit CMOS OTP microcontroller with integrated EEPROM data memory, executing instructions at 1 µs per cycle from a 4 MHz internal clock input. The device integrates 768 bytes (512 x 12) of OTP program memory and 25 bytes of RAM, with six general-purpose I/O pins in a surface-mount SOIC-8 (SN) package. It supports operating voltages from 3.0 V to 5.5 V, making it suitable for both battery-powered and line-powered embedded applications. An 8-bit microcontroller (MCU) is a single-chip computer containing a CPU, program memory (ROM/OTP/Flash), data RAM, and peripherals such as timers, I/O ports, and serial interfaces. The PIC12CE518 belongs to Microchip's PIC® 12C family, which is a subfamily of the broader PIC microcontroller architecture. Within the embedded-system hierarchy, this MCU sits below 16-bit and 32-bit microcontrollers but above discrete logic ICs, offering a programmable platform for simple control, sensing, and user-interface tasks. The integrated EEPROM allows small data sets such as configuration values, calibration coefficients, or serial numbers to be retained without external memory. Key features of the PIC12CE518-04E/SN include a RISC instruction set of only 33 single-word instructions (all single-cycle except program branches, which are two-cycle), an internal 4 MHz oscillator (-04 speed grade), 6 I/O pins with individually programmable direction, a watchdog timer for reliable operation, and an extended operating temperature range of -40 °C to +125 °C (E suffix). The 'CE' variant adds an on-chip 16-byte EEPROM data space accessible through dedicated SFRs. The PIC12CE518 architecture combines Harvard bus separation (separate program and data paths) with a 12-bit-wide instruction word, enabling compact code density and predictable interrupt latency. The integrated brown-out detector and power-on reset support robust cold-start behavior. Compared with newer PIC12F devices such as the recommended PIC12F629, this part uses one-time-programmable memory rather than Flash, which makes it attractive for low-cost, high-volume, fixed-function products where code is finalized at production. Typical applications include low-cost consumer appliances, simple sensor-interface nodes, automotive accessory modules, and industrial control subsystems where a small I/O count and minimal BOM are required. The wide 3.0-5.5 V supply range simplifies integration with both 3.3 V and 5 V system rails. This part is also frequently chosen for replacement of legacy 8-pin discrete-logic boards with a programmable solution. When designing with the PIC12CE518-04E/SN, note that OTP memory cannot be reprogrammed in-circuit; code must be programmed before or during board assembly. Because Microchip indicates a newer device (PIC12F629) is preferred for new designs, this part is best suited to long-life-cycle products, maintenance replacements, or designs where a stable, mature toolchain is required. This page synthesizes distributor pricing, same-package drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, helping sourcing engineers evaluate lifecycle risk and pin-to-pin substitutes for the PIC12CE518-04E/SN.

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PIC12CE518-04I/SN

PIC12CE518-04I/SN - 8-bit 4MHz OTP MCU w/ EEPROM | Microchip

The Microchip Technology PIC12CE518-04I/SN is an 8-bit CMOS OTP-based microcontroller in the PIC12C family, featuring 768 bytes of program memory (512 x 12 words), 25 bytes of RAM, 16 bytes of EEPROM data memory, and 6 I/O pins, packaged in an 8-pin SOIC (SN) and rated for 4 MHz operation over the industrial temperature range. The device executes single-cycle instructions in 1 microsecond at 4 MHz, providing deterministic timing for embedded control loops in compact form factors. The -04I suffix indicates the 4 MHz speed grade with industrial temperature range (-40C to +85C), while /SN denotes the 8-SOIC surface-mount package. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, non-volatile program memory, and peripheral I/O on a single silicon die. The PIC12CE518 belongs to the OTP (One-Time-Programmable) PIC12C family, which historically targeted low-cost, low-pin-count embedded applications where production volumes justify one-time programming. Within the broader taxonomy, an 8-bit MCU sits between simple 4-bit controllers and 32-bit microprocessors, offering a balance of cost, ease of use, and code density for applications such as consumer appliances, sensor interfaces, and battery-operated devices. The on-chip EEPROM data memory is a distinguishing feature, allowing parameter storage without external serial EEPROM. Key features include the Enhanced PIC16C5X core architecture with only 33 single-word instructions, four oscillator selections (including an internal 4 MHz RC oscillator with programmable factory calibration), 25 mA source/sink capability per I/O pin suitable for direct LED driving, programmable code protection, a Watchdog Timer with independent oscillator, Power-on Reset, and an operating voltage range of 2.5V to 5.5V. The device consumes only a few milliamps in active mode and supports a power-saving SLEEP mode. Each I/O pin can source or sink 25 mA, eliminating the need for external driver transistors in many interface circuits. The PIC12CE518 uses a Harvard RISC architecture with separate program and data buses, executing most instructions in a single instruction cycle. The 12-bit wide instruction word optimizes code density for the PIC instruction set, and the two-level deep hardware stack supports subroutine nesting. The 16 bytes of on-chip EEPROM provide non-volatile storage for calibration constants, configuration parameters, or user preferences, with endurance rated for one million erase/write cycles typical. The internal 4 MHz RC oscillator eliminates external crystal components in cost-sensitive designs. Typical applications include remote control transmitters, low-end consumer electronics, LED lighting controllers, battery chargers, sensor signal conditioning front-ends, smart card readers, and replacement of discrete logic in glue-logic consolidation designs. The 8-pin SOIC package and minimal external component count make it suitable for space-constrained PCB designs. The wide operating voltage range (2.5V to 5.5V) supports both 3.3V and 5V system rails directly from common battery chemistries. When designing with this device, note that OTP memory cannot be reprogrammed in-circuit, so code development must use a windowed (JW) or compatible flash-based PIC12F part for prototyping. Microchip recommends migrating to PIC12F629 or PIC10F series for new designs. Ensure the MCLR pin is properly tied high via a resistor for normal operation, and place decoupling capacitors close to VDD. This page synthesizes distributor pricing, drop-in alternatives within the same 8-SOIC footprint, and practical design notes not consolidated on any single manufacturer or distributor page, accelerating part selection and BOM validation.

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PIC12CE518/JW

PIC12CE518/JW - 4MHz 8-Bit OTP MCU w/ EEPROM, 8-CDIP Window

The Microchip Technology PIC12CE518/JW is an 8-bit CMOS OTP (one-time-programmable) RISC microcontroller in the PIC12C family, factory-fitted in an 8-pin CERDIP window package (8-CDIP, 0.300 inch / 7.62 mm) that exposes the die for UV erasure. It integrates 768 bytes of EPROM program memory (organized as 512 x 12-bit words), 16 bytes of EEPROM data memory, and 25 bytes of general-purpose RAM, with 5 digital I/O pins. The core runs up to 4 MHz from an internal RC or external clock, executes single-cycle instructions in 1 us, and operates from 3.0 V to 5.5 V. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, on-chip program memory, RAM, and configurable I/O. Within the semiconductor taxonomy, an MCU belongs to the Integrated Circuits > Microcontrollers hierarchy; it sits one level below "embedded processor" and above bare logic ICs. PIC12C-series parts implement Microchip's RISC instruction set with only 33 single-word instructions, enabling very small code size and predictable interrupt latency. This category is widely used in cost-sensitive and space-constrained embedded designs such as appliance controls, sensor interfaces, and replacement of discrete logic. Key features of the PIC12CE518/JW include on-chip EEPROM for non-volatile parameter storage (16 bytes), a hardware universal synchronous/asynchronous receiver-transmitter (USART/SPI), an 8-bit timer/counter, a watchdog timer with its own RC oscillator, in-circuit serial programming (ICSP), and a programmable code-protection bit. Its 8-bit timer with 8-bit prescaler and the 4 MHz oscillator provide deterministic timing for simple control loops. Power-down sleep mode drops the supply current to the microampere range, allowing battery-friendly standby operation. The wide 3.0-5.5 V supply range tolerates common 3.3 V and 5 V rails. The windowed 8-CDIP package exposes the EPROM die so engineers can erase the program memory with UV light and reuse the part during prototyping. That makes the PIC12CE518/JW especially attractive for engineering development, firmware regression testing, and low-volume pilot builds where OTP blank-window chips are economical. The CERDIP body is hermetic, supporting industrial and defense applications that demand through-hole reliability. The same silicon die is also offered in plastic OTP and flash equivalents (PIC12C518, PIC12CE518, PIC12F629), giving designers an upgrade path once firmware stabilizes. Typical applications include low-cost remote-control encoders, battery-powered sensor nodes, simple motor and relay drivers, security-system keypads, and white-goods user-interface controllers. The on-chip EEPROM allows storage of calibration coefficients, channel settings, or counters that survive power cycles, eliminating an external serial EEPROM. USART/SPI enables direct connection to peripherals such as LCD drivers, EEPROMs, or simple RF links, while the watchdog timer recovers the MCU from software lock-ups. When designing with this device, treat the OTP window carefully: exposure to direct sunlight or fluorescent UV can erase the program. Always store windowed parts in opaque tubes or light-tight containers and apply a protective sticker over the window before deployment if the design will see UV light in service. Programming must follow Microchip's ICSP timing exactly; out-of-spec Vpp or programming-pulse widths will permanently damage the cell. PICmicro is a registered trademark of Microchip Technology Incorporated. This page synthesizes Microchip datasheet values, distributor pricing, and drop-in CERDIP-window alternatives that are not collected on a single manufacturer page, giving engineers a one-stop comparison view for procurement and redesign decisions.

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PIC12CE518T-04/SM

PIC12CE518T-04/SM - 8-bit OTP MCU, 768B EPROM, 4 MHz SOIC-8

The Microchip Technology PIC12CE518T-04/SM is an 8-bit PIC microcontroller with 768 bytes of One-Time Programmable (OTP) EPROM program memory, 25 bytes of RAM, and 6 I/O pins, operating at up to 4 MHz from a 2.5V to 5.5V supply in a surface-mount SOIC-8 package. The 'CE' suffix denotes integrated EEPROM data memory, and the 'T' denotes tape-and-reel packaging for high-volume assembly. With 6 bidirectional I/O lines, 8-bit timer/counter (TMR0) with programmable prescaler, watchdog timer with dedicated RC oscillator, power-on reset, and device reset timer, the PIC12CE518 was designed for compact embedded logic and low-cost consumer/industrial control. A PIC microcontroller (Programmable Intelligent Computer) is a family of RISC-based, Harvard-architecture 8/16/32-bit microcontrollers from Microchip Technology. PIC MCUs integrate CPU core, non-volatile program memory (ROM/EPROM/Flash), RAM, I/O peripherals, and timers into a single chip. They sit in the taxonomy: MCU -> microcontroller -> embedded controller -> semiconductor IC. PIC12-series parts are the low-pin-count, OTP/EPROM baseline family used where minimal footprint, low cost, and deterministic instruction execution are paramount. Key features of the PIC12CE518T-04/SM include 33 single-word instructions with 12-bit instruction width, 2-level hardware stack, 8 MHz oscillator input (4 MHz instruction rate at divide-by-2), in-circuit serial programming (ICSP) via two pins, and programmable code protection. The integrated 16-byte EEPROM provides non-volatile user data storage without external NVM. Power management includes sleep mode with watchdog wake-up, brown-out detection optional, and a wide 2.5V to 5.5V operating range enabling direct Li-ion or 3.3V system compatibility. Architecturally, the PIC12CE518 uses a RISC core with separate program and data buses (Harvard architecture), giving deterministic instruction fetch in one cycle after prefetch. The 33-instruction set fits most control logic in tight code space, and the dedicated WDT oscillator ensures the watchdog continues to function even when the main oscillator is stopped (e.g., in sleep), improving safety in unattended applications. Typical applications include appliance control, sensor signal conditioning, LED driving and blinking patterns, simple state machines, remote control transmitters, battery chargers, and consumer-electronics glue logic. It is commonly used as a secondary auxiliary controller in larger systems where a full UART-equipped MCU would be overkill. Designers should note the OTP memory limitation: code cannot be updated in the field. For prototypes or production units needing firmware revisions, choose a Flash-memory equivalent such as the PIC12F629 or PIC10F200 in the same SOIC-8 footprint. SOIC-8 (5.30 mm body width) is a standard 8-pin JEDEC outline with proven reflow profile compatibility. This page synthesizes distributor pricing, same-package drop-in equivalents, and practical application notes not found in the manufacturer datasheet.

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PIC12CE518T-04E/SM

PIC12CE518T-04E/SM - 8-bit 4MHz OTP MCU 6 I/O SOIJ-8 | Microchip

The Microchip Technology PIC12CE518T-04E/SM is an 8-bit PIC® 12C-series CMOS microcontroller built around a RISC core that executes 33 single-word/single-cycle instructions, delivered in an 8-pin SOIJ (SM) surface-mount form with 768 bytes (512 x 12) of One-Time Programmable (OTP) program memory and 25 bytes of data RAM. The -04 speed grade targets a 4 MHz oscillator input, and the part operates from a 3.0 V to 5.5 V supply suitable for both 3.3 V and 5 V rails. Six general-purpose I/O pins support digital interfacing, while on-chip peripherals include Power-On Reset (POR), a Watchdog Timer (WDT) for safe recovery from code faults, and a 6-channel 8-bit analog-to-digital converter that distinguishes the 'CE' family from the standard 'C' devices. A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, working RAM, and peripherals onto one silicon die. The PIC12C5xx family sits at the entry level of Microchip's 8-bit portfolio, sitting hierarchically under: PIC microcontroller -> 8-bit PIC -> PIC12C5xx baseline OTP/EPROM family -> PIC12CE5xx with ADC. RISC architectures like the PIC12CE518 use a fixed instruction width and two-stage pipeline to deliver deterministic instruction timing (one instruction per clock cycle after the pipeline fills), which simplifies real-time scheduling in low-cost embedded designs. Key features include 4 MHz maximum oscillator frequency, low-power CMOS工艺 giving typical active current below 2 mA at 5 V / 4 MHz, an internal RC oscillator option, and selectable oscillator configurations (RC, XT, LP, HS, INTOSC). The 8-bit ADC with 4 input channels multiplexed across the GPIO pins enables sensor-to-digital conversion without an external ADC IC. The -04E suffix indicates a 4 MHz speed grade and 'E' extended-temperature grade (-40C to +125C) suitable for industrial environments, while 'T' indicates tape-and-reel packaging and 'SM' designates the SOIJ-8 package. Architecturally, the PIC12CE518 uses a Harvard-style separate program/data bus, with a 12-bit-wide instruction word for OTP memory and 8-bit data path. The 6 I/O pins each have individually controllable weak pull-ups, TTL-buffered input thresholds, and CMOS-compatible output drivers. The MCLR reset, INT interrupt, and GP0-GP5 port pins share the 8 SOIJ pins, with one pin dedicated to MCLR and the remaining six mapped to GPIO and ADC channels. Typical applications include battery-powered sensor interfaces, simple appliance controls, low-cost LED lighting controllers, automotive interior modules, security keypads, and industrial sensor transmitters. The combination of ADC + OTP memory + 6 I/O makes the PIC12CE518 particularly well-suited for cost-sensitive embedded nodes where a few analog inputs need to be digitized and a few GPIOs need to drive relays, LEDs, or user interfaces. When designing with this device, ensure the 4 MHz oscillator source is stable and within the chosen mode's drive spec (XT mode = standard crystal, HS = high-speed crystal, LP = low-power 32 kHz, RC = resistor/capacitor). Always enable the Watchdog Timer in safety-critical applications and validate the POR threshold against the slowest expected Vdd rise time. Use the ICD-compatible pinout only with a PIC10/12/16 in-circuit debugger; production boards should leave the MCLR/GP3 pin accessible for in-system programming if firmware updates are anticipated.

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PIC12CE518T-04E/SN

PIC12CE518T-04E/SN - 8-Bit 4MHz OTP MCU 768B | Microchip

The Microchip Technology PIC12CE518T-04E/SN is an 8-bit PIC RISC microcontroller with 768 bytes of OTP program memory (512 × 12 words), 25 bytes of RAM, and 16 bytes of EEPROM, housed in an 8-pin SOIC (SN) package. It operates at 4 MHz instruction rate from a 2.5 V to 5.5 V supply and executes 33 single-word instructions, with all instructions completing in a single 1 µs cycle except program branches (2 cycles). The 'E' suffix indicates the extended (2.5 V–5.5 V) operating-voltage variant and the 'T' suffix indicates tape-and-reel packaging. An 8-bit PIC microcontroller is a low-pin-count CMOS RISC processor optimized for cost-sensitive embedded control. The PIC12C5xx family is one of the earliest PIC baseline architectures, providing 12-bit-wide instructions that deliver roughly 2:1 code compression versus 8-bit CISC microcontrollers in the same class. The PIC12CE5XX family adds integrated EEPROM data memory, allowing non-volatile parameter storage without an external serial EEPROM, which reduces board area and BOM cost. The PIC sits in the broader taxonomy: microcontroller (MCU) → 8-bit MCU → PIC baseline → PIC12C5XX family. Key features of the PIC12CE518 include six general-purpose I/O pins, a power-on reset (POR) and watchdog timer (WDT), an internal 4 MHz RC oscillator, and an operating temperature range of -40 °C to +125 °C. Its 8-bit core, 12-bit instruction word, and 2:1 code compression provide 8-bit MCU performance at a price point suited to high-volume consumer and industrial controls. Architecturally, the device uses a Harvard-style bus with separate program and data paths, an 8-level hardware stack, and 7 special-function registers. The integrated 16-byte EEPROM supports in-application read/write, enabling user-configurable settings, calibration constants, or serial-number storage without external components. The device is specified for -40 °C to +125 °C operation, making it suitable for industrial environments. Typical applications include consumer appliance controls, sensor interfaces, low-end remote controls, LED drivers, and battery-powered accessories. Designers favor this part where its small 8-pin SOIC footprint, integrated EEPROM, and 1 µs instruction cycle deliver deterministic control at minimal cost. Design tip: use a 0.1 µF decoupling capacitor within 5 mm of the VDD pin and ensure the MCLR pin is tied high through a 10 kΩ resistor to guarantee a clean power-on reset; the integrated POR handles the cold-start sequence but the external RC is still required for stable operation. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet. Pricing is quoted as of 2026-09-15.

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PIC12CE518T-04E/SN - 8-Bit 4MHz OTP MCU 768B | Microchip