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PIC12C671-10E/P

PIC12C671-10E/P - 8-bit MCU, 1.75KB OTP, 10MHz, 8-PDIP | Microchip

The Microchip Technology PIC12C671-10E/P is an 8-bit CMOS RISC microcontroller with 1.75KB of one-time-programmable (OTP) program memory, 128 bytes of RAM, six I/O pins, and an integrated 8-bit A/D converter, housed in an 8-pin PDIP (through-hole) package rated for 10MHz operation and the extended industrial temperature range. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, and peripheral interfaces on one IC. The PIC12C671 belongs to the Microchip PIC12 family of baseline/Mid-Range 8-bit RISC microcontrollers, sitting within the hierarchy: 8-bit MCU -> RISC microcontroller -> embedded controller -> semiconductor IC. It uses a 14-bit instruction word, Harvard architecture, and a 35-instruction set designed for deterministic, compact code generation. Key features include 1.75KB (typically 1024 x 14-bit words) of OTP program memory, 128 bytes of data RAM, a 4-channel 8-bit A/D converter with internal bandgap reference, an 8-bit timer/counter (TMR0), a Watchdog Timer with its own on-chip RC oscillator, an internal 4MHz RC oscillator, and an external interrupt source. The device operates across 2.5V to 5.5V (3.3V/5V operation explicitly supported), consumes very low operating current, and is offered in the industrial/automotive temperature grade (the "E" suffix in the part number denotes extended temperature range). Architecturally, the PIC12C671 is fully static and uses a two-stage pipeline to fetch and execute instructions in a single cycle (except branches). The integrated peripherals, including the A/D converter with selectable reference sources, allow direct interface to analog sensors without external signal-conditioning components, making the device well-suited to small-form-factor embedded products where PCB real estate is at a premium. Typical applications include battery chargers, sensor signal conditioning, appliance control, security systems, automotive body electronics, and small consumer devices. The wide operating voltage range and integrated A/D converter particularly suit battery-powered or sensor-interface applications. When designing with this part, note that the OTP memory is one-time programmable; for development, use a windowed (JW) or Flash variant (PIC12F675 is the recommended modern replacement per Microchip's product page). The device requires proper configuration word programming, including oscillator selection and Watchdog Timer enable/disable. This page synthesizes Microchip product specifications, current distributor pricing as of 2026-09-15, drop-in replacement alternatives, and practical design guidance not consolidated on any single datasheet page.

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PIC12C671-10I/MF

PIC12C671-10I/MF - 8-Bit 10MHz OTP MCU, 8-DFN-S | Microchip

The Microchip Technology PIC12C671-10I/MF is a 8-bit RISC PIC microcontroller with 1.75KB (1K x 14) One-Time-Programmable (OTP) program memory, 128 bytes of RAM, and an integrated 4-channel 8-bit ADC, packaged in an 8-pin VDFN Exposed Pad (6x5 mm) surface-mount package. It executes instructions at up to 10MHz and operates from a 3.0V to 5.5V supply across the industrial temperature range of -40C to +85C. A PIC microcontroller (Programmable Interface Controller) is a Harvard-architecture 8-bit MCU family from Microchip Technology that combines a RISC CPU core, non-volatile program memory, RAM, and integrated peripherals such as timers, ADC, and comparators into a single IC. Within the broader embedded hierarchy, PIC MCUs sit under the umbrella of microcontrollers, which themselves belong to integrated circuits and to the semiconductor product family. The PIC12C6xx sub-family is positioned as one of the smallest and lowest-pin-count PIC offerings, optimized for compact, cost-sensitive applications where small PCB area and minimal external component count matter most. Key specifications for the PIC12C671-10I/MF include 5 digital I/O pins (the remaining pins are dedicated to VDD, VSS, MCLR, and OSC), an internal RC oscillator, an internal Power-on Reset (POR) circuit, a Watchdog Timer (WDT) for code integrity, and an 8-bit ADC with 4 input channels. The device uses the standard mid-range PIC14 instruction set (35 instructions), providing predictable timing and deterministic code execution well suited to real-time control loops. Architecturally, the PIC12C671 separates program and data buses (Harvard), allowing simultaneous instruction fetch and operand access. The OTP program memory is one-time programmable, meaning each unit is dedicated to a single firmware image - ideal for production runs. Built-in peripherals such as the 8-bit ADC and timer reduce BOM count, and the internal oscillator eliminates the need for an external crystal in many designs, allowing a complete application to be realized with the IC and a few passive components. Typical applications for the PIC12C671-10I/MF include battery chargers, smart sensors, low-end appliance controllers, personal-care devices, automotive interior lighting modules, and simple closed-loop control subsystems such as fan speed controllers and small DC motor drivers. Designers also deploy the part in edge-of-network IoT sensor nodes where 8-bit processing is sufficient. When designing with this device, attention should be paid to the OTP memory constraint - firmware must be finalized before production programming, since OTP cannot be reprogrammed in-circuit. Programming is performed via the ICSP interface using tools such as MPLAB PM3. Adequate decoupling and proper layout of the exposed thermal pad to the ground plane will improve ADC noise performance. This page synthesizes distributor pricing from DigiKey and Mouser, drop-in same-package alternatives from the PIC12C family, and practical design notes that are not found in the standalone manufacturer datasheet.

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PIC12C671/JW

PIC12C671/JW - 8-bit MCU, 1.75KB EPROM, 10MHz, 8-CDIP | Microchip

The Microchip Technology PIC12C671/JW is a 8-bit RISC CMOS microcontroller with 1.75 KB (1K x 14) of UV-erasable EPROM program memory, 128 bytes of RAM, and 5 programmable I/O pins plus one input-only pin, housed in an 8-pin Ceramic DIP (CDIP) with an erase window. The device runs up to 10 MHz (400 ns instruction cycle) from a 3.0 V to 5.5 V supply at commercial 0 °C to 70 °C temperature grade. The /JW suffix indicates the ceramic windowed package, designed for prototyping and field-reprogrammable flows where code must be erased under UV light. What is a PIC12C-series microcontroller? The PIC12C67X family belongs to Microchip's PIC microcontrollers, which are 8-bit RISC Harvard-architecture MCUs with integrated peripherals. PIC12C parts use a 14-bit instruction word and sit in the low-pin-count (8-pin) category, bridging the gap between discrete logic and larger 16- and 32-bit microcontrollers. They are widely used as glue logic, sensor conditioners, and standalone controllers where a few I/O pins plus on-chip A/D conversion replace a handful of analog and digital ICs. Key features of the PIC12C671 include four channels of 8-bit A/D conversion (replacing external ADCs in many designs), 128 bytes of SRAM, an 8-bit timer/counter (TMR0) with 8-bit programmable prescaler, and a watchdog timer with on-chip RC oscillator for reliable operation. The device provides five I/O pins with individual direction control, internal pull-ups selectable via software (GPPU bit), and current sink/source capability suitable for direct LED drive. Architecturally, the PIC12C671 uses a Harvard bus with separate program and data paths, an 8-level deep hardware stack, and a single-cycle instruction decoder that keeps most instructions executing in one instruction cycle (400 ns at 10 MHz). This deterministic instruction timing makes the part predictable for real-time control loops without pipeline stalls. Typical applications include low-cost sensor interfaces, battery chargers, small appliance controllers, automotive body modules (industrial-grade variants), and any drop-in upgrade path from PIC12C508/509 designs needing more program memory and on-chip A/D conversion. The windowed package supports iterative firmware development where code is repeatedly erased and reprogrammed during validation. When designing with this part, note that the 8-CDIP windowed package has a ceramic lid that must be removed for UV erasure; field-deployed units should migrate to the OTP version (PIC12C671/P) or the recommended successor PIC12F675 (Flash-based, lower cost). Per the manufacturer datasheet, programming requires the PRO MATE II or PICSTART Plus with an 8-pin DIP adapter. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the standalone manufacturer datasheet.

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PIC12C671T-04E/SM

PIC12C671T-04E/SM - 4MHz 8-bit OTP MCU, 1.75KB | Microchip

The Microchip PIC12C671T-04E/SM is an 8-bit RISC microcontroller in the PIC12C family, featuring 1.75KB (1K x 14 words) of One-Time-Programmable (OTP) program memory, 128 bytes of RAM, an integrated 8-bit A/D converter, and 6 programmable I/O lines, all housed in an 8-pin SOIJ (SM) package rated for the extended industrial temperature range. The "-04" suffix designates a 4MHz maximum clock, the "E" indicates the extended (-40C to +125C) temperature grade, the "T" denotes tape-and-reel packaging, and "/SM" specifies the 8-SOIJ surface-mount package. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, I/O peripherals, and often analog blocks into one IC. Within the broader hierarchy, the PIC12C671 belongs to the 8-bit PIC family -> PIC12C sub-family -> PIC12C67x series -> microcontroller -> embedded microcontroller -> semiconductor IC. MCUs execute user firmware stored in non-volatile memory and are the central control element in virtually every embedded product, from automotive sensors to consumer appliances. The PIC12C671T-04E/SM is built on Microchip's PIC RISC architecture with only 33 single-word instructions, most executing in a single instruction cycle. Its integrated peripherals include an 8-bit successive-approximation A/D converter with four multiplexed input channels, an 8-bit timer/counter (TMR0) with an 8-bit prescaler, a watchdog timer with its own on-chip RC oscillator, and a power-on reset / brown-out detection circuit. Programmable code protection and an In-Circuit Serial Programming (ICSP) interface simplify field updates. Typical applications include low-pin-count embedded controllers, sensor signal conditioning, battery chargers, automotive body and chassis nodes (extended temp), small appliance controls, and any space-constrained design requiring A/D conversion. The pic12c671T-04E/SM is well suited for cost-sensitive, low-complexity logic replacement and analog front-end digitization where its 4MHz instruction rate is sufficient. When designing with this device, note that it operates from 3.3V to 5.5V; programmers such as the MPLAB PM3 or PICkit are required for OTP programming. In-Circuit Serial Programming (ICSP) requires only two I/O lines plus VDD/VSS, allowing firmware to be loaded after PCB assembly. Decouple VDD with a 0.1uF ceramic capacitor placed within 5 mm of the pin. This page synthesizes verified distributor pricing, drop-in same-family alternatives, design notes, and parametric comparisons not found in the manufacturer datasheet alone.

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PIC12C671T-04I/SM

PIC12C671T-04I/SM - 8-Bit OTP MCU, 4MHz, 1.75KB | Microchip

The Microchip PIC12C671T-04I/SM is an 8-bit, fully-static CMOS microcontroller with an integrated 8-bit A/D converter, 1.75KB (1K x 14) of One-Time-Programmable (OTP) program memory, 128 bytes of RAM, and 6 programmable I/O pins, all housed in an 8-pin SOIJ (SM) package. It operates at a maximum clock speed of 4 MHz, supports supply voltages from 3.0 V to 5.5 V, and is qualified for the industrial temperature range of -40C to +85C, making it well-suited for cost-sensitive embedded control tasks. What is a PIC 8-bit microcontroller? A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (ROM/OTP/Flash), volatile data memory (RAM), and a configurable set of peripheral interfaces such as I/O ports, timers, and analog-to-digital converters (ADCs). The PIC12C67x family belongs to Microchip's mid-range 8-bit RISC architecture, which is widely used in consumer appliances, automotive subsystems, industrial sensors, and battery-powered instruments. Within the broader semiconductor taxonomy, it sits as: PIC12C671 -> PIC12C family -> PIC10/12/16 mid-range -> 8-bit MCU -> microcontroller -> integrated circuit. Key features include 35 single-word instructions (200 ns instruction cycle at 4 MHz), 8-bit ADC with 4 input channels, four oscillator options (RC, LP, XT, HS), an 8-bit real-time clock/counter with 8-bit prescaler, and a watchdog timer for reliable unattended operation. The OTP program memory supports in-circuit programming via Microchip's ICSP interface, while the brown-out detect and power-on reset blocks provide robust supply-voltage supervision. Maximum power dissipation is specified at 700 mW. The architecture combines a Harvard-bus CPU with a 14-bit instruction word and separate 8-bit data path, which is characteristic of the mid-range PIC families. The integrated ADC uses successive-approximation register (SAR) conversion with 8-bit resolution, suitable for low-bandwidth sensor sampling such as thermistor bridges, potentiometers, and battery monitors. The device supports in-system debugging through Microchip's ICD and the MPLAB PM3 programmer, which work with the entire PIC12C6xx line. Typical applications include appliance control boards, sensor signal conditioning, simple closed-loop fan or pump controllers, automotive interior accessories, battery chargers, security keypads, and low-cost consumer products. The 6 I/O pins are sufficient for driving small relays, LED indicators, and UART-style bit-banged communication. A key design consideration is OTP vs Flash: because the PIC12C671 uses one-time-programmable memory, firmware must be fully validated before programming - the part cannot be reprogrammed in the field. Designs targeting field upgrades should consider the PIC12F/F67x Flash-based siblings. The SOIJ (SM) package is a small-outline IC with J-leads, suitable for both hand-soldered prototypes and high-volume SMT lines. This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design notes - information not consolidated in the manufacturer datasheet alone.

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PIC12C671T-10/SM

PIC12C671T-10/SM - 8-Bit 10MHz OTP MCU with ADC | Microchip

The Microchip Technology PIC12C671T-10/SM is an 8-bit, 10MHz CMOS RISC microcontroller in the PIC12C67x family, packaged in an 8-pin SOIJ (also referenced as 8-SOIC 5.30mm width) and featuring 1.75KB (1K x 14 words) of One-Time Programmable (OTP) program memory, 128 bytes of RAM, six general-purpose I/O pins, and an on-chip 8-bit analog-to-digital converter. The /SM suffix denotes the surface-mount SOIJ package and the T-suffix denotes tape-and-reel packaging for high-volume assembly lines. What is a PIC microcontroller? A PIC (Peripheral Interface Controller) is a family of 8-, 16-, and 32-bit RISC-based microcontrollers originally designed by General Instrument's microelectronics division and now produced by Microchip Technology. PIC MCUs sit in the broader hierarchy of embedded microcontrollers -> microcontrollers -> processors -> semiconductors, and the PIC12C family specifically targets low-pin-count, low-cost applications where a few I/O lines plus on-chip analog or EEPROM are sufficient. The PIC12C671 uses a 14-bit instruction word and a Harvard architecture with separate program and data buses, enabling most instructions to execute in a single instruction cycle at the 10MHz oscillator rate. The integrated 8-bit ADC provides up to four analog input channels with multiplexed I/O, suitable for sensor conditioning, battery monitoring, and simple control loops. Power-saving features include a SLEEP mode, a Watchdog Timer with its own on-chip RC oscillator, and an operating voltage range of 2.5V to 5.5V. Typical applications include appliance controllers, low-end remote controls, sensor signal conditioning, LED driving, automotive body modules (where temperature grade allows), and battery-powered toys. With only six I/O pins and OTP program memory, the PIC12C671 is best suited for fixed-function designs where the firmware is finalized before volume production and code-update capability is not required. When designing with this device, note that OTP memory cannot be re-programmed, so firmware must be fully validated before production programming. Decoupling capacitors (typically 0.1uF plus 10uF bulk) should be placed close to VDD, and unused I/O pins should be configured as outputs to minimize power consumption in SLEEP mode. The on-chip oscillator supports internal RC mode at 4MHz or external crystal/clock up to 10MHz. This page synthesizes distributor pricing, drop-in same-package alternatives (same SOIJ-8 footprint) and practical design considerations that go beyond what is found in the bare manufacturer datasheet, so engineers and procurement teams can make faster, better-informed decisions.

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PIC12C671T-10E/SM

PIC12C671T-10E/SM - 8-Bit 10MHz OTP MCU with ADC | Microchip

The Microchip Technology PIC12C671T-10E/SM is an 8-bit CMOS RISC microcontroller based on the PIC12 core, delivering 10 MIPS throughput at a 10 MHz oscillator in an 8-pin SOIJ surface-mount package. It integrates 1.75 KB (1K x 14) of One-Time Programmable (OTP) program memory and 128 bytes of RAM, plus a 4-channel 8-bit analog-to-digital converter, a watchdog timer, and power-on reset. The tape-and-reel 'T' suffix and 'SM' package code identify the SOIJ-8 production form factor. An 8-bit microcontroller (MCU) is a single-chip computer that combines a CPU, program memory, data memory, and peripherals on one die, designed for embedded control tasks where deterministic timing, low cost, and small footprint matter more than raw compute throughput. Within the broader taxonomy, the PIC12C671 sits in the hierarchy MCU -> 8-bit microcontroller -> PIC12 family -> Microchip PIC microcontrollers, and is generally classified as a baseline-class PIC designed for cost-sensitive analog and I/O-centric applications. Key features include instruction execution in a single 200 ns cycle at 10 MHz, six general-purpose I/O pins shared with analog inputs, an internal 4 MHz RC oscillator option, a programmable code-protection scheme, and a wide 3.0 V to 5.5 V supply range. In-system serial programming is supported via GP0/GP1, allowing firmware updates after PCB assembly. The OTP program memory is factory-programmable and cannot be erased, making this part suitable for low-to-medium volume production. Architecturally, the PIC12C671 uses a Harvard RISC core with separate program and data buses, providing deterministic interrupt response and single-cycle instruction execution. Its CMOS design delivers low power consumption with typical active current of a few milliamperes, suitable for always-on or battery-backed designs where power budget is tight. Typical applications include appliance control front-ends, sensor signal conditioning, automotive body modules, simple closed-loop fan or valve controllers, and battery chargers that require local A/D conversion. Designers select this part when they need analog sensing plus a small glue-logic footprint in fewer than 10 pins. A critical design consideration is the OTP memory: the program is locked in after the first write and cannot be changed, so the firmware must be fully validated before programming. Designers should also budget for the programming adapter cost (e.g., MPLAB PM3) in low-volume prototypes, and consider migrating to the flash-based PIC12F675 (which Microchip actively recommends as the modern replacement) for new designs.

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PIC12C671T-10I/MF

PIC12C671T-10I/MF - 8-Bit 10MHz MCU 1.75KB OTP 8-DFN | Microchip

The Microchip Technology PIC12C671T-10I/MF is a member of the PIC12C family of 8-bit CMOS microcontrollers with on-board A/D converter, offered in an 8-pin Dual Flat No-lead (8-DFN-S, 6x5 mm) surface-mount package and supplied in Tape & Reel. The device integrates 1.75 KB (1K x 14) of One-Time Programmable (OTP) program memory and 128 bytes of RAM, executes one instruction per cycle at up to 10 MHz oscillator frequency, and exposes 5 general-purpose digital I/O pins plus 4-channel 8-bit A/D conversion through the same pads. Industrial temperature grade (-40C to +85C), low power CMOS process, internal oscillator options, and an in-circuit serial programming interface round out the feature set. An 8-bit microcontroller (MCU) is a small, single-chip computer built around an 8-bit data path, typically used in embedded applications that demand deterministic behaviour, low cost, and modest code size. The PIC12C671T sits at the entry-level of Microchip's 8-bit portfolio: PIC -> 8-bit microcontroller -> PIC10/12/16 family -> PIC12C sub-family. It is one of the earliest 8-pin OTP devices and remains in production as a cost-optimized solution for simple control tasks where an external crystal is unnecessary. Key features that distinguish this device in its class include its 10 MHz instruction throughput (4 MHz oscillator x 4 PLLx), internal RC oscillator for low-BOM-count designs, 4-channel 8-bit ADC for direct sensor interfacing, and the wide 2.5 V to 5.5 V operating range that supports both 3.3 V and 5 V rails. Brown-out reset, watchdog timer, power-on reset, and code protection add robustness for unattended appliances, while the in-circuit serial programming (ICSP) interface permits firmware updates after PCB assembly. The PIC12C671T-10I/MF uses a 14-bit instruction word and a Harvard architecture with separate code and data paths, achieving predictable interrupt latency and compact code density that often translates to smaller OTP images than competing 8-bit cores. CMOS design with low-power Sleep mode and a typical 2 mA active current at 5 V keeps it suitable for line-powered or battery-assisted duty cycles. Typical applications for this part include small appliance controllers, sensor signal conditioning front-ends, automotive accessory modules, LED driver sequencers, and educational/development boards where the 8-pin footprint, internal oscillator, and minimal external component count simplify layout and reduce total BOM cost. Designers also use it as a housekeeping companion to a larger host MCU. When designing with this part, place a 0.1 uF decoupling capacitor as close as possible to VDD and provide adequate ground copper. The internal oscillator is trimmed at the factory but may need software fine-tuning per board to meet timing-sensitive serial protocols; for tight UART tolerances an external crystal is recommended. This page consolidates distributor pricing, pin-compatible drop-in alternatives, and practical design notes not found in the manufacturer datasheet, helping procurement and engineering teams evaluate supply risk and design trade-offs in a single view.

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PIC12C672-04/P

PIC12C672-04/P - 8-Bit 4MHz OTP MCU with ADC | Microchip

The Microchip PIC12C672-04/P is an 8-bit CMOS RISC microcontroller in the PIC12C family, featuring a 4 MHz instruction clock, 3.5 KB (2K x 14) of One-Time-Programmable (OTP) program memory, 128 bytes of RAM, an on-chip 8-bit A/D converter, and six general-purpose I/O pins, all housed in an 8-pin PDIP through-hole package. It executes instructions in 400 ns (one instruction cycle = four oscillator periods), and its 35 single-word instruction set simplifies firmware development and reduces code footprint. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, and peripheral interfaces such as ADC, timers, and I/O ports. The PIC12C672 sits within the broader taxonomy of microcontroller -> 8-bit microcontroller -> RISC microcontroller -> embedded controller -> semiconductor. Its Harvard architecture, separate program and data buses, and 14-bit instruction word place it firmly in Microchip's mid-1990s mid-range PIC family, optimized for cost-sensitive analog-sensing and control applications. Key features include an internal 4 MHz oscillator option (or external clock), a 4-channel 8-bit ADC, an 8-bit timer/counter with prescaler, a watchdog timer with its own on-chip RC oscillator, and an operating voltage range of 2.5 V to 5.5 V (extended) or 3.0 V to 5.5 V (commercial/industrial). The device offers low power consumption with typical sleep currents below 1 microampere, programmable weak pull-ups on GPIO, and code protection to safeguard intellectual property. The PIC12C672 uses a RISC pipelined architecture with a 14-bit program word, allowing most instructions to execute in a single 200 ns instruction cycle at 20 MHz (or 1 microsecond at 4 MHz). This combines predictable interrupt latency with deterministic throughput for sensor reading and PWM-style bit-banging. The integrated ADC samples up to four channels with 8-bit resolution, suitable for thermistor, potentiometer, and battery-monitoring inputs. Typical applications include battery chargers, smoke detectors, sensor conditioning front-ends, low-end remote controls, appliance timers, and any cost-constrained embedded design requiring modest analog inputs. The 8-pin PDIP format supports easy breadboarding, hobbyist projects, and legacy through-hole PCB layouts. When designing with this part, consider that the OTP memory cannot be re-programmed, so firmware revisions require a new part. Migration to flash-based PIC10F/PIC12F/PIC16F equivalents (such as PIC12F675 with comparable pinout) is recommended for new designs. Decoupling capacitors of 0.1 microfarad should be placed close to VDD with a 10 microfarad bulk capacitor on the supply rail. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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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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PIC12C671-10E/P - 8-bit MCU, 1.75KB OTP, 10MHz, 8-PDIP | Microchip

PIC12C671-10I/MF - 8-Bit 10MHz OTP MCU, 8-DFN-S | Microchip

PIC12C671/JW - 8-bit MCU, 1.75KB EPROM, 10MHz, 8-CDIP | Microchip

PIC12C671T-04E/SM - 4MHz 8-bit OTP MCU, 1.75KB | Microchip

PIC12C671T-04I/SM - 8-Bit OTP MCU, 4MHz, 1.75KB | Microchip

PIC12C671T-10/SM - 8-Bit 10MHz OTP MCU with ADC | Microchip

PIC12C671T-10E/SM - 8-Bit 10MHz OTP MCU with ADC | Microchip

PIC12C671T-10I/MF - 8-Bit 10MHz MCU 1.75KB OTP 8-DFN | Microchip

PIC12C672-04/P - 8-Bit 4MHz OTP MCU with ADC | Microchip

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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