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PIC16LC717T-E/SO - 8-Bit PIC MCU, 20MHz, 3.5KB OTP, 18-SOIC | Microchip
PIC16LC717T-E/SO

PIC16LC717T-E/SO - 8-Bit PIC MCU, 20MHz, 3.5KB OTP, 18-SOIC | Microchip

The Microchip Technology PIC16LC717T-E/SO is an 8-bit PIC microcontroller built on a RISC architecture, offering 20MHz maximum clock speed, 3.5KB (2K x 14) of One-Time-Programmable (OTP) program memory, and 256 bytes of RAM, all housed in an 18-pin SOIC surface-mount package supplied on tape and reel. It is part of Microchip's PIC16C family designed for low-voltage, mixed-signal embedded control where analog sensing, digital I/O, and serial communication must coexist on a single die. An 8-bit microcontroller (MCU) is a small computer-on-a-chip that integrates a CPU, memory, and I/O peripherals on a single silicon die. Microcontrollers belong to the broader hierarchy of microprocessors -> embedded processors -> microcontrollers -> 8-bit MCUs -> PIC microcontrollers -> PIC16C microcontrollers. The "LC" suffix in the part number designates the low-voltage CMOS variant of the PIC16C717, suitable for battery-powered or 3.3V regulated supplies; the "T" suffix denotes tape-and-reel packaging; and "E" denotes the extended operating temperature grade. Key features include an integrated 10-bit analog-to-digital converter with 6 input channels, hardware I2C and SPI serial communication ports, a Capture/Compare/PWM (CCP) module, and an operating voltage range of 2.5V to 5.5V. The 18-SOIC (0.295 inch / 7.50mm width) package supports surface-mount assembly and is well suited to hand-solderable prototypes and high-volume SMT production alike. The part supports in-circuit serial programming (ICSP) through dedicated pins, allowing firmware updates after PCB assembly. The PIC16LC717 uses a Harvard-architecture RISC core with a 14-bit instruction word optimized for compiled C code density. The integrated 10-bit ADC samples at rates suitable for thermistor, potentiometer, and battery-monitoring front-ends, while the CCP module generates PWM signals for LED dimming, motor speed control, or simple valve actuation. Combined with the I2C/SPI peripherals, the device addresses typical sensor-hub and human-interface node designs. Typical applications include industrial sensor interfaces, low-power consumer appliances, automotive body controllers (non-safety), battery chargers, and small appliances with user-interface requirements. The wide 2.5V-5.5V supply tolerance makes the part flexible for both 3.3V and 5V rails commonly found in mixed-signal designs. When designing with this MCU, allocate sufficient decoupling (typically 100nF plus 10uF bulk) close to VDD and AVdd pins and ensure the MCLR pin is pulled high through a resistor for normal run mode. The OTP memory means firmware revisions require new silicon - choose the flash-based PIC16F717 family if in-field firmware updates are required. This page synthesizes distributor pricing, drop-in same-package alternatives, and design notes not aggregated in any one manufacturer PDF - giving procurement and design engineers a faster engineering reference for the PIC16LC717T-E/SO.

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PIC16LC717T-E/SS - 8-Bit 20MHz OTP MCU, 3.5KB | Microchip
PIC16LC717T-E/SS

PIC16LC717T-E/SS - 8-Bit 20MHz OTP MCU, 3.5KB | Microchip

The Microchip Technology PIC16LC717T-E/SS is an 8-bit PIC16 microcontroller built on a RISC architecture, executing instructions at up to 20MHz from 3.5KB (2K x 14 words) of one-time programmable (OTP) program memory, housed in a 20-pin SSOP (5.30mm body) package. The 'LC' family designation indicates the extended low-voltage core variant supporting operation from 2.5V to 5.5V, and the 'T' suffix denotes Tape and Reel packaging. With 256 bytes of data RAM, the PIC16LC717 is one of the higher-integration members of the mid-range PIC16 family. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, data RAM, and programmable peripherals into one device. PIC16 mid-range MCUs use a 14-bit instruction word and a Harvard architecture with separate program and data buses, enabling deterministic single-cycle instruction execution. The PIC16LC717 sits within the broader taxonomy: microcontroller -> embedded processor -> semiconductor IC, occupying the mid-range tier that balances instruction set power, peripheral integration, and unit cost. Key features include an integrated 8-channel 12-bit ADC (a distinguishing feature versus most PIC16 mid-range predecessors), one 8-bit and two 16-bit timers, an analog comparator, an internal reference, and 15 I/O pins. The 12-bit ADC supports automotive and industrial precision sensor readings without an external ADC IC, and the analog comparator enables zero-crossing detection, threshold alarms, and PWM-current feedback. The automotive 'E' temperature grade supports -40°C to +125°C operating range. Architecturally, the PIC16LC717 employs a 14-bit instruction RISC core with a 35-instruction set and a 2-stage pipeline. The OTP program memory uses EPROM cells, which can be programmed once and retain data indefinitely without a battery. The wide operating voltage (2.5V-5.5V) and the industrial/automotive temperature grade position this part for harsh-environment designs. Typical applications include automotive sensor interfaces, HVAC control boards, industrial process instrumentation, white-goods motor control, and battery-powered instrumentation. The 12-bit ADC, on-chip comparator, and extended temperature range make it well-suited to analog-heavy embedded designs. When designing with the PIC16LC717, use Microchip's MPLAB X IDE and the ICD debugger for development. The OTP memory cannot be reprogrammed, so for in-field updates consider the flash-memory PIC16F717 equivalent which shares the same pinout and peripheral set.

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PIC16LC717T-I/SO - 8-Bit 20MHz 3.5KB OTP MCU | Microchip
PIC16LC717T-I/SO

PIC16LC717T-I/SO - 8-Bit 20MHz 3.5KB OTP MCU | Microchip

The Microchip Technology PIC16LC717T-I/SO is an 8-bit PIC16C-family RISC microcontroller running at up to 20 MHz, integrating 3.5 KB (2K x 14) of One-Time Programmable (OTP) program memory with 256 bytes of RAM in an 18-pin SOIC surface-mount package supplied on tape and reel. The "LC" prefix indicates the low-voltage CMOS process variant, supporting operation across 2.5 V to 5.5 V input, while the "I" suffix denotes the industrial temperature grade of -40 °C to +85 °C. Peripherals include a multi-channel 10-bit ADC, two 8-bit timers and one 16-bit timer, an internal oscillator option, plus Master/Slave I²C and SPI serial interfaces with 16 digital I/O pins. What is a PIC microcontroller? A PIC (Peripheral Interface Controller) is a family of low-cost, Harvard-architecture RISC microcontrollers originally designed by General Instrument and today best known through Microchip's PIC10/12/16/18/24/32 families. PIC MCUs sit inside the broader taxonomy: microcontroller -> embedded microcontroller -> embedded IC -> semiconductor. PIC16 devices are the legacy 14-bit instruction word mid-range parts, widely adopted in cost-sensitive industrial, appliance and consumer products because they pair predictable interrupt latency with an extensive peripheral set and a mature MPLAB toolchain. Key features of the PIC16LC717 family include the 35 instruction set, 8-level hardware stack, 256-byte RAM, 3.5 KB OTP program memory, the brown-out reset (BOR) and watchdog timer (WDT), and an internal oscillator eliminating the external crystal in many designs. The wide 2.5 V – 5.5 V supply range lets designers power the same MCU from a single Li-ion cell, three alkaline cells, or a regulated 5 V rail. Compared with the PIC16F717, the OTP "LC" variant reduces die cost in high-volume applications where firmware will not change after release. Architecturally, the device uses a 14-bit instruction word, single-cycle ALU, and separate program/data buses, achieving close to 5 MIPS at 20 MHz. The 10-bit ADC with multiple input channels supports up to 6 analog inputs (package-dependent), and the CCP/ECCP modules provide PWM generation for motor, lighting or power-conversion control loops. In-system serial programming (ICSP) allows code updates through two pins even after PCB assembly. Typical applications include industrial control panels, white-goods user interfaces, HVAC damper and valve controllers, low-end motor control, sensor signal conditioning, and any battery-powered or 5 V embedded product requiring deterministic real-time response. When designing with this MCU, plan the analog and digital supply layout carefully: AVSS and AGND should share a low-impedance connection, and the ICSP/CLK-DAT pins must remain accessible for production programming. The OTP nature of the part means firmware revisions require a new part, so mature, locked firmware is essential before high-volume ramp. This page synthesizes distributor pricing, drop-in 18-SOIC alternatives, and practical design notes that are not found in the bare Microchip datasheet, giving procurement and embedded engineers a single reference for the PIC16LC717T-I/SO.

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PIC16LC717T-I/SS - 8-Bit MCU 20MHz 3.5KB OTP 20-SSOP | Microchip
PIC16LC717T-I/SS

PIC16LC717T-I/SS - 8-Bit MCU 20MHz 3.5KB OTP 20-SSOP | Microchip

The Microchip Technology PIC16LC717T-I/SS is an 8-bit CMOS PIC microcontroller built around the PIC16C core, operating at up to 20 MHz with a one-time programmable (OTP) program memory of 3.5 KB (2K x 14 words) and 256 bytes of SRAM, housed in a 20-pin Shrink Small-Outline Package (SSOP). The "LC" suffix indicates a low-voltage CMOS variant (2.5V to 5.5V operating range) optimized for battery-friendly applications, while the "I" denotes the industrial operating temperature range of -40°C to +85°C. The "T" suffix indicates Tape & Reel packaging. A microcontroller (MCU) is a single-chip computer containing a processor core, non-volatile program memory (here, OTP), volatile data memory, and programmable I/O peripherals. The PIC16LC717 sits within Microchip's mid-range PIC16 family — a category between the baseline PIC10/12/16 series and the PIC18 — and it integrates a multi-channel 10-bit Analog-to-Digital Converter (ADC) with up to 6 analog inputs, making it a common choice for sensor-interface and embedded-control tasks. As an OTP device, the program memory can be written only once, which is well suited to high-volume production where firmware is final. Key features include an 8-bit ALU with 14-bit instruction word, hardware USART/SCI for serial communication, a 16-bit timer/counter with capture/compare/PWM modules, an 8-bit timer/counter, an integrated brown-out reset (BOR), a watchdog timer (WDT) with its own on-chip RC oscillator, and an in-circuit serial programming (ICSP) interface. The ADC supports 10-bit resolution at conversion rates suitable for temperature, voltage, and process-variable monitoring. The architecture is built on a RISC-style Harvard design — separate program and data buses enable single-cycle instruction fetch except for branch instructions. This contributes to the deterministic interrupt latency that PIC MCUs are known for. Power management is supported through selectable oscillator modes (RC, LP, XT, HS) and a SLEEP mode that reduces current to microamp levels. Typical applications include consumer appliance control, HVAC sensor nodes, industrial instrumentation, simple motor-control loops, and battery-powered metering. The integrated ADC and PWM peripherals allow direct interfacing with thermistors, potentiometers, and low-side MOSFET drivers without external glue logic. When designing with this device, remember that OTP memory cannot be re-flashed — use a windowed or Flash variant (such as the PIC16F717) during firmware development and switch to the LC717 for the released production BOM. Decoupling of 100 nF close to VDD/VSS and adherence to Microchip's oscillator-layout guidelines are essential for EMC compliance. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet — useful for engineers qualifying the PIC16LC717T-I/SS for new designs or replacements.

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PIC16LC717T/SO - 8-bit MCU 3.5KB OTP 18-SOIC | Microchip
PIC16LC717T/SO

PIC16LC717T/SO - 8-bit MCU 3.5KB OTP 18-SOIC | Microchip

The Microchip Technology PIC16LC717T/SO is an 8-bit PIC RISC microcontroller with 3.5 KB (2K x 14) OTP program memory, 256 bytes of RAM, and 16 I/O lines, supplied in an 18-pin SOIC package on tape and reel. Operating from a wide 2.5 V to 5.5 V supply, the LC variant supports both 3.3 V and 5 V rails, and integrates a 10-bit ADC, two analog comparators, a USART, and a 16-bit timer/counter plus an 8-bit timer/counter for embedded control tasks. The device executes most instructions in a single 200 ns cycle at 20 MHz oscillator, giving 5 MIPS of throughput from a compact RISC engine. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, volatile data RAM, and a configurable set of peripheral modules. PIC microcontrollers from Microchip belong to the 8-bit RISC family, where the term RISC (Reduced Instruction Set Computer) describes an architecture that uses a small, orthogonal instruction set to enable deterministic single-cycle execution. Within Microchip's taxonomy, PIC16 devices sit between the baseline PIC10/12/16 small-pin parts and the PIC18 mid-range family, offering a balance of analog integration and I/O for cost-sensitive embedded designs. Key features include the brown-out reset (BOR) circuit, power-on reset (POR), a programmable watchdog timer with its own on-chip RC oscillator, and In-Circuit Serial Programming (ICSP) through the PGD/PGC pins. The ADC supports up to 6 analog input channels, and the two comparators can be combined with a programmable voltage reference for sensor-conditioning front ends. The device offers typical and extended temperature grades, low-power SLEEP mode with wake-up-on-pin-change, and direct LED drive capability on most I/O pins. Typical applications include consumer appliances, automotive subsystems, industrial sensors, and battery-powered handheld instruments where analog sensing, serial communication, and low-cost digital control are required. The 18-SOIC footprint is hand-solderable and compatible with standard 300-mil SOIC prototyping boards. Design considerations include ensuring the MCLR pin has a proper pull-up, observing the in-circuit programming timing specifications, and providing adequate decoupling near both VDD pins.

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PIC16LC71T-04/SO - 8-Bit 4MHz MCU 1.75KB OTP 18-SOIC | Microchip
PIC16LC71T-04/SO

PIC16LC71T-04/SO - 8-Bit 4MHz MCU 1.75KB OTP 18-SOIC | Microchip

The Microchip Technology PIC16LC71T-04/SO is a PIC16C-series 8-bit CMOS RISC microcontroller (MCU) operating at 4MHz with 1.75KB (1K x 14 words) of One-Time-Programmable (OTP) program memory, 36 bytes of data RAM, 13 programmable I/O lines, and a 4-channel 8-bit on-chip Analog-to-Digital Converter (ADC), housed in an 18-pin Small-Outline IC (18-SOIC) tape-and-reel package. A microcontroller is a single-chip computer that integrates a CPU, memory, and programmable I/O peripherals onto one die. Within the broader taxonomy, the PIC16C71X family sits as an 8-bit RISC MCU -> mid-range PIC16C -> 16-bit/8-bit microcontroller category -> embedded computing -> semiconductor. The "LC" prefix designates the low-power CMOS process variant suitable for battery-powered designs, while the "C" in PIC16C denotes the OTP ROM program memory technology (versus PIC16F which uses Flash). Key features of the PIC16LC71T-04/SO include its 4MHz maximum clock rate (4MHz industrial-grade speed grade), integrated 8-bit ADC with 4 input channels (eliminates external ADC cost and PCB area), 13 bidirectional I/O pins (sufficient for most simple control tasks), 36-byte RAM file register space, and the PIC mid-range instruction set providing 35 single-word/single-cycle instructions for compact, deterministic code execution. The 18-SOIC package provides industry-standard 1.27mm pin pitch and is suitable for both hand-soldered prototypes and automated SMT assembly lines. The PIC16LC71 architecture employs a Harvard-style separate program and data bus, allowing instruction fetch and operand access in a single instruction cycle. The on-chip peripherals include a Watchdog Timer (WDT) for code-flow monitoring, Power-on Reset (POR) for deterministic startup, and Timer0/Timer1 for event counting and timing. The "T" suffix in PIC16LC71T indicates Tape-and-Reel packaging orientation. Typical applications include low-cost sensor-interface modules, battery-powered instrumentation, simple motor/valve controllers, HVAC thermostat controls, and consumer appliance user-interface boards. The integrated ADC simplifies analog front-end designs by removing the need for a dedicated external ADC chip. Design consideration: because OTP memory is one-time programmable, firmware revisions require physical chip replacement - choose PIC16F-series Flash equivalents for development and field-updatable products. The commercial temperature grade (0C to +70C) makes this part unsuitable for industrial or automotive environments; choose "I" (industrial -40C to +85C) or "E" (extended -40C to +125C) variants for harsher thermal profiles. This page synthesizes distributor availability, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC16LC71T-04I/SO - 1.75KB EPROM MCU 4MHz SOIC-18 | Microchip
PIC16LC71T-04I/SO

PIC16LC71T-04I/SO - 1.75KB EPROM MCU 4MHz SOIC-18 | Microchip

The Microchip Technology PIC16LC71T-04I/SO is an 8-bit CMOS RISC microcontroller from the PIC16C71X family with 1.75KB EPROM program memory, 36 bytes of RAM, and an integrated 8-bit analog-to-digital converter, housed in a 18-pin SOIC package supplied on tape and reel. It executes instructions at a 4 MHz oscillator rate and supports industrial-grade operating temperatures from -40C to +85C, making it suitable for embedded control applications where deterministic behavior, low power, and integrated analog sensing are required in a small surface-mount footprint. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, RAM, and programmable peripherals on one die. The PIC16C7X family is part of Microchip's mid-range 8-bit architecture using a Harvard design with separate program and data buses; the LC7X variants specifically use CMOS-EPROM for one-time-programmable code storage and operate from a 3.0V-6.0V supply window optimized for low-power battery and industrial applications. Key features include a 13-bit instruction word architecture (14-bit PIC mid-range), an 8-bit 4-channel successive-approximation ADC with conversion speed tied to the oscillator, an 8-bit Timer0 with prescaler, a 16-bit Timer1 with external crystal option, and an 8-bit Timer2. The 13 bidirectional I/O pins are arranged across two ports (RA and RB) with software-configurable direction. The wide 2.5V-5.5V supply range and 13 I/O lines let the part replace discrete logic plus an external ADC in cost-sensitive designs. Typical applications include industrial sensor interfaces, low-power consumer white goods controls, automotive body electronics modules, HVAC thermostat controls, and battery-powered instrumentation. The integrated ADC and EPROM programmability make this MCU a common choice for retrofits of legacy PIC16C71 designs where the SOIC footprint is already on the PCB. When designing with this part, note that EPROM cells require windowed packages or one-time-programming (OTP) on standard SOIC variants; the LC71 family does not support in-system reprogramming. The 4 MHz oscillator input can be a crystal, ceramic resonator, or external clock, and the ADC conversion clock must be derived from the system oscillator. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC16LC72-04/SO - 8-bit 4MHz OTP MCU 28-SOIC | Microchip
PIC16LC72-04/SO

PIC16LC72-04/SO - 8-bit 4MHz OTP MCU 28-SOIC | Microchip

The Microchip Technology PIC16LC72-04/SO is an 8-bit CMOS RISC microcontroller belonging to the PIC16C mid-range family, operating at up to 4 MHz with 3.5 KB (2K x 14) of One-Time Programmable (OTP) program memory and 128 bytes of RAM, housed in a 28-pin SOIC (Small Outline Integrated Circuit) surface-mount package. The "LC" prefix denotes the low-power CMOS variant, and the "-04" speed grade specifies a 4 MHz maximum oscillator frequency. The part integrates 22 digital I/O lines, an on-chip 8-bit analog-to-digital (A/D) converter with up to 5 channels, and a synchronous serial port (SSP) supporting SPI and I2C, making it a versatile general-purpose controller. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and peripherals; mid-range PIC16C devices specifically trade off Flash program memory for OTP technology, keeping unit prices competitive for high-volume consumer and industrial embedded products. Within the broader hierarchy, the PIC16LC72 belongs to PIC16C family -> mid-range PIC16 -> PIC microcontrollers -> 8-bit microcontrollers -> microcontrollers -> integrated circuits. Key features include 5-channel 8-bit ADC, synchronous serial port (SPI / I2C), 3 timer modules (Timer0, Timer1, Timer2), 8-bit parallel slave port, watchdog timer with on-chip RC oscillator, programmable code protection, and a wide operating voltage range typical of the LC family. According to the manufacturer datasheet, the device offers 8-bit-wide Harvard architecture and 14-bit instruction word optimized for compact assembly code density. Typical applications include industrial automation controllers, consumer appliance interfaces, low-power sensor signal conditioning, and small-form-factor embedded control boards where OTP cost advantages outweigh reprogrammability. The 28-SOIC footprint is the most widely supported mid-range PIC package, simplifying PCB layout for both hand-prototyping and high-volume SMT assembly. When designing with this part, note that OTP memory cannot be erased or rewritten: firmware must be 100% validated before commitment. For prototype or field-upgradable designs, consider Flash-based members of the PIC16F family in the same 28-SOIC footprint. The 0C to 70C commercial temperature range restricts the LC variant to non-industrial environments; choose the "-I" or "-E" suffix parts for extended-range designs. Prices vary by source per Datasheet View and Compare All Substitutes Image shown is a representation only. Exact specifications should be obtained from the product data sheet.

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PIC16LC72-04I/SO - 8-Bit CMOS MCU 3.5KB ROM 22 I/O | Microchip
PIC16LC72-04I/SO

PIC16LC72-04I/SO - 8-Bit CMOS MCU 3.5KB ROM 22 I/O | Microchip

The Microchip PIC16LC72-04I/SO is an 8-bit CMOS RISC microcontroller from the PIC16CXX mid-range family, offering 3.5 KB of EPROM program memory, 128 bytes of RAM, and 22 digital I/O pins in a 28-pin SOIC package. It integrates a 5-channel 8-bit A/D converter, three timer modules (Timer0 8-bit, Timer1 16-bit, Timer2 8-bit), a synchronous serial port (SSP) supporting SPI and I2C, and a USART for asynchronous serial communication. The LC version is specified for a 2.5 V to 5.5 V supply range, and the -04 speed grade runs at up to 4 MHz clock input. A PIC16CXX mid-range microcontroller is a low-cost, high-performance, fully-static, 8-bit CMOS device built around Microchip's RISC architecture, sitting hierarchically under PIC16 family -> PIC microcontroller -> 8-bit MCU -> microcontroller -> embedded processing IC. These MCUs integrate CPU core, non-volatile program memory, RAM, peripherals, and interrupt logic on a single die, which makes them suitable for compact, low-power embedded designs where an external processor is unnecessary. Key features include 14-bit wide instruction set for compact code density, hardware USART for serial communication, dual-capture/compare/PWM modules for motor and signal control, power-on reset, brown-out reset, watchdog timer with on-chip RC oscillator, and code-protection EPROM. The 4 MHz maximum clock rate and 2.5 V minimum VDD enable battery-friendly designs. The PIC16LC72-04I/SO uses a Harvard architecture with separate program and data buses, allowing simultaneous instruction fetch and operand access. Its CMOS RISC core executes most instructions in a single cycle (200 ns at 20 MHz, 1 us at 4 MHz), supporting predictable real-time performance for control loops. The integrated analog peripherals and digital communication interfaces reduce system BOM cost by eliminating the need for external ADC and bus transceivers in many embedded designs. Typical applications include industrial process control, automotive sensor modules, instrumentation, low-power remote sensing, and consumer electronics. The SSP and USART peripherals enable drop-in use in Modbus, sensor front-end, and motor drive designs. When designing with this part, note that the LC (low-power) variant supports a lower VDD minimum (2.5 V) than the standard C variant (3.0 V minimum), so check your battery cutoff behavior carefully. For new designs, consider PIC16F72 flash variants for in-circuit reprogrammability. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC16LC72-04I/SP - 8-Bit 4MHz 3.5KB OTP MCU 22 I/O | Microchip
PIC16LC72-04I/SP

PIC16LC72-04I/SP - 8-Bit 4MHz 3.5KB OTP MCU 22 I/O | Microchip

The Microchip Technology PIC16LC72-04I/SP is an 8-bit CMOS microcontroller from the PIC16C mid-range family, operating at up to 4 MHz and offering 3.5 KB (2K x 14) of One-Time-Programmable (OTP) program memory plus 128 bytes of RAM, housed in a 28-pin SPDIP (Skinny Plastic DIP, 0.300 inch / 7.62 mm) through-hole package. Per the manufacturer datasheet, the device integrates five channels of 8-bit A/D conversion, 22 digital I/O lines, three timers (Timer0 8-bit, Timer1 16-bit, Timer2 8-bit), and an I2C/SPI-compatible synchronous serial port, with brown-out detect, power-on reset, watchdog timer, and PWM peripherals for embedded control loops. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, and peripheral interfaces onto one die. The PIC16LC72-04I/SP belongs to the Microchip PIC16C mid-range architecture, itself part of the broader PIC® 8-bit MCU family, which sits hierarchically under the category of microcontrollers -> integrated circuits -> semiconductors. The 'LC' suffix designates the low-voltage CMOS variant, optimized for operation from 2.5 V to 5.5 V supplies, making it well suited to battery-powered or energy-conscious designs. Key features of the PIC16LC72-04I/SP include the integrated 5-channel 8-bit ADC, which lets the MCU read analog sensors without an external converter, and the Synchronous Serial Port (SSP) supporting both SPI (master/slave) and I2C (slave) modes for connecting EEPROMs, sensors, or display drivers. Brown-Out Reset (BOR) and Power-On Reset (POR) ensure deterministic startup, while the Watchdog Timer (WDT) recovers the system from software lockups. PWM outputs enable direct control of motors, LEDs, or simple audio tones without CPU overhead. The architecture uses a Harvard-style 14-bit instruction word optimized for compact code density, with 35 single-word instructions. Static CMOS design allows the clock to be stopped without losing register contents, enabling ultra-low-power sleep modes ideal for intermittently sampled sensor nodes. Typical applications for the PIC16LC72-04I/SP include industrial sensor interface boards, low-cost motor and stepper controllers, simple appliance controls, and educational/development platforms that benefit from the classic PIC mid-range toolchain (MPASM, MPLAB IDE) and In-Circuit Serial Programming (ICSP). When designing with this part, note that OTP memory is one-time programmable; for prototyping or firmware revisions, consider the PIC16F72 (Flash) sibling that shares the same 28-pin SPDIP footprint and peripheral set. Decoupling capacitors (100 nF) should be placed close to VDD/VSS, and unused I/O pins configured as outputs low to minimize quiescent current draw. This page consolidates distributor pricing, OTP vs Flash trade-offs, drop-in alternatives, and PCB-level design guidance not found in the manufacturer datasheet, giving procurement and engineering teams a single decision-ready reference.

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PIC16LC72-04I/SS - 8-bit 4MHz MCU, 3.5KB OTP, 28-SSOP | Microchip
PIC16LC72-04I/SS

PIC16LC72-04I/SS - 8-bit 4MHz MCU, 3.5KB OTP, 28-SSOP | Microchip

The Microchip Technology PIC16LC72-04I/SS is a low-cost, high-performance 8-bit CMOS RISC microcontroller in the PIC16CXX mid-range family, packaged in a 28-pin SSOP (0.209 inch / 5.30mm width) with 3.5KB (2K x 14) of One-Time Programmable (OTP) program memory, 128 x 8 bytes of RAM, and 22 I/O pins. It runs at a maximum clock frequency of 4MHz, includes an integrated 8-bit A/D converter with 5 input channels, and supports I2C and SPI communication interfaces for sensor and peripheral connectivity. The 'LC' suffix indicates a low-power CMOS variant suitable for battery-operated designs. A microcontroller (MCU) is a single-chip computer containing a CPU, memory, and peripherals. Within the PIC family, the PIC16LC72 belongs to the mid-range architecture, which uses a 14-bit instruction word and Harvard memory structure. Low-dropout CMOS variants (LC) operate over an extended voltage range, making them appropriate for power-constrained embedded systems. In the broader hierarchy, an MCU falls under microcontrollers, then integrated circuits, then semiconductors. Key features of the PIC16LC72-04I/SS include an industrial temperature grade (-40C to +85C), three timer/counter blocks (8-bit Timer0 with prescaler, 16-bit Timer1 with sleep-mode crystal increment capability, 8-bit Timer2), and synchronous serial port (SSP) supporting both SPI and I2C. Program memory is OTP (one-time programmable), which is suitable for high-volume production where firmware is fixed and code updates are not expected in the field. The device uses Microchip's classic PIC RISC architecture with a small instruction set and deterministic timing. The integrated 8-bit ADC allows direct interfacing with analog sensors (temperature, light, voltage), while the I2C/SPI peripherals enable communication with external EEPROMs, sensors, and displays. The PIC16LC72 is widely used in legacy and cost-sensitive designs, including automotive subsystems, consumer appliances, and industrial control. Typical applications for the PIC16LC72-04I/SS include low-power remote sensor nodes, white goods and home appliance motor drivers, HVAC control modules, automotive interior lighting controllers, and simple industrial timer/counter subsystems. The industrial temperature grade allows use in non-extreme factory environments. When designing with this part, note that the OTP program memory means firmware cannot be field-updated. Engineers should use a flash-based sibling (such as the PIC16F72 family) during development and prototyping, then transition to the PIC16LC72-04I/SS for cost-optimized production. Ensure decoupling capacitors are placed close to VDD/VSS pins and that MCLR is properly biased for reliable resets.

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PIC16LC72A-04/SS - 8-Bit 4MHz MCU 3.5KB OTP 28-SSOP | Microchip
PIC16LC72A-04/SS

PIC16LC72A-04/SS - 8-Bit 4MHz MCU 3.5KB OTP 28-SSOP | Microchip

The Microchip Technology PIC16LC72A-04/SS is an 8-bit CMOS microcontroller in the PIC16C family, integrating a 4 MHz CPU core, 3.5 KB of one-time-programmable (OTP) program memory (organized as 2K x 14 words), 128 bytes of general-purpose SRAM, and 22 digital I/O pins in a 28-pin SSOP package. It is engineered for low-power embedded control with a 2.5 V to 5.5 V supply range and a 0 C to +70 C commercial operating temperature window, drawing microamp-level standby currents suitable for always-on industrial and consumer designs. The "LC" suffix designates the low-voltage CMOS process variant, while the "04" speed grade denotes a 4 MHz oscillator input (200 ns instruction cycle), and "/SS" indicates the 28-lead shrink-small-outline package. A microcontroller (MCU) is a single-chip computer that combines a CPU, program memory, RAM, non-volatile data memory, and configurable peripheral blocks such as timers, capture/compare/PWM modules, an analog-to-digital converter (ADC), serial communication interfaces, and general-purpose I/O. Within the broader semiconductor hierarchy, a microcontroller belongs to the digital logic IC family under the embedded processing umbrella; the PIC16C series from Microchip uses a RISC Harvard-architecture core with 35 single-word instructions, separating program and data buses to enable simultaneous fetch and operand access for deterministic interrupt latency. Key feature differentiators include the OTP program memory (which supports prototyping and small/medium production runs at lower mask-charge cost than masked-ROM parts), a 10-bit successive-approximation ADC, a USART module, an I2C/SPI synchronous serial port, capture/compare/PWM (CCP) peripherals, and a watchdog timer with on-chip RC oscillator for code-flow protection. Brown-out reset (BOR), power-on reset (POR), and an analog comparator are also integrated to reduce external bill-of-materials count. The 28-SSOP footprint provides ~0.65 mm lead pitch, allowing the device to fit compact hand-held and panel-mount designs where 28-pin PDIP or SOIC variants would be too tall. Typical applications include industrial automation control loops, consumer appliance keypad and display controllers, sensor signal conditioning front-ends, low-speed serial-bridge nodes, and small-form-factor battery-powered handheld instruments. The 2.5 V minimum supply also enables direct Li-ion or two-AA-cell operation without boost regulators. When designing with the PIC16LC72A-04/SS, confirm oscillator selection (crystal vs resonator vs RC) and verify the OTP programming window using MPLAB development tools. The OTP array cannot be erased, so production yields depend on robust in-system test and verification prior to programming.

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PIC16LC72A-04I/ML - 8-bit 4MHz OTP MCU, 28-QFN | Microchip
PIC16LC72A-04I/ML

PIC16LC72A-04I/ML - 8-bit 4MHz OTP MCU, 28-QFN | Microchip

The Microchip Technology PIC16LC72A-04I/ML is an 8-bit PIC16C-family RISC microcontroller with 3.5KB (2K x 14) of One-Time-Programmable (OTP) program memory, 128 bytes of RAM, and 22 digital I/O pins, operating at up to 4MHz from a 2.5V-5.5V supply in a 28-pin QFN (6x6 mm) package. It belongs to Microchip's PIC16C72A family of low-power CMOS microcontrollers designed for embedded control applications. A microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, RAM, and peripheral I/O. PIC16C-series parts use a Harvard-architecture RISC core with a 14-bit instruction word, distinguishing them from later PIC16F flash parts. The 'LC' suffix denotes the low-voltage CMOS operating range (2.5V-5.5V), and 'A' denotes the second silicon revision. The 'C' token historically signals OTP/EPROM program memory rather than Flash, so designers must program the device before board assembly using a device programmer; field updates are not possible. PIC microcontrollers sit within the taxonomy: PIC16C -> PIC16 family -> PIC MCU -> 8-bit microcontroller -> embedded processor -> semiconductor. Key features include 22 general-purpose digital I/O pins, multiple timer/counter modules, a 5-channel 8-bit ADC, capture/compare/PWM peripherals, an asynchronous serial port (USART), and a watchdog timer. The Harvard RISC core executes most instructions in a single 200ns instruction cycle at 4MHz oscillator frequency, delivering deterministic interrupt response that is well-suited to real-time control loops. Typical applications include low-cost consumer appliances, sensor signal conditioning, industrial control panels, automotive interior modules, white-goods motor control, and battery-powered instrumentation where low-voltage operation (down to 2.5V) extends battery life. Designers should note that this part uses OTP program memory, so firmware must be fully validated before programming; for in-application reprogrammability the PIC16F72 Flash equivalent (PIC16F72-I/ML) is preferred. Pin compatible QFN-28 layout allows PCB reuse when migrating to flash parts.

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PIC16LC72A-04I/SP - 8-bit MCU, 4MHz, 3.5KB OTP, 28-SPDIP | Microchip
PIC16LC72A-04I/SP

PIC16LC72A-04I/SP - 8-bit MCU, 4MHz, 3.5KB OTP, 28-SPDIP | Microchip

The Microchip Technology PIC16LC72A-04I/SP is an 8-bit CMOS RISC microcontroller from the PIC16C family, featuring a 4 MHz maximum clock input, 3.5 KB (2K x 14) of One-Time-Programmable (OTP) program memory, and 128 bytes of RAM, housed in a 28-pin SPDIP (Skinny Plastic DIP) through-hole package. According to the Microchip datasheet, the device executes 35 single-word instructions, with all single-cycle except program branches which take two cycles, giving an effective 200 ns instruction cycle at 20 MHz operation. The part integrates a 5-channel 8-bit Analog-to-Digital Converter (ADC), one 8-bit timer/counter (Timer0) plus one 16-bit timer/counter (Timer1), a Watchdog Timer with its own on-chip RC oscillator, and 22 digital I/O pins organized across three ports (PORTA, PORTB, PORTC). What is an 8-bit microcontroller? An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, RAM, I/O peripherals, and timers onto one IC, with a data path 8 bits wide. Microcontrollers sit at the bottom of the embedded computing hierarchy: microcontroller -> embedded controller -> semiconductor -> integrated circuit. The PIC16LC72A belongs to Microchip's PIC16 mid-range family, the industry reference architecture for low-cost, deterministic embedded control since the mid-1990s. Key features include a wide operating voltage range of 2.5 V to 6.0 V (suitable for both 3.3 V and 5 V rails), 22 I/O pins with individual direction control, an on-chip brown-out reset circuit, an in-circuit serial programming (ICSP) interface, and an industrial temperature range of -40 C to +85 C as denoted by the I suffix. The 28-SPDIP package is breadboard-friendly, making this part popular in education, prototyping, and legacy industrial designs. Architecturally, the PIC16LC72A uses a Harvard architecture with separate code and data buses, enabling single-cycle instruction fetch plus execution. The OTP program memory is programmed once at production time, making the part economical for medium-volume embedded products where field firmware updates are not required. The C suffix in the die variant indicates a CMOS process revision A, and the -04 speed grade limits operation to 4 MHz. Program branches resolve in two instruction cycles, providing deterministic interrupt latency for real-time control. Typical applications include appliance control boards, automotive interior modules, industrial sensor interfaces, HVAC thermostats, and consumer electronics subsystems. The on-chip ADC supports direct interface with potentiometers, thermistors, and low-bandwidth analog sensors, eliminating external ADC cost in many designs. When designing with this device, ensure the ICSP pins (RB6/RB7) are accessible on the PCB for factory programming and field firmware recovery. The industrial (-I) suffix guarantees operation from -40 C to +85 C, so the part is qualified for outdoor enclosures and automotive cabin environments.

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PIC16LC72A-04I/SS - 4MHz 8-bit MCU 3.5KB OTP 22 I/O | Microchip
PIC16LC72A-04I/SS

PIC16LC72A-04I/SS - 4MHz 8-bit MCU 3.5KB OTP 22 I/O | Microchip

The Microchip Technology PIC16LC72A-04I/SS is an 8-bit CMOS RISC microcontroller belonging to the PIC16C family, built around an enhanced PIC16 architecture with a 14-bit instruction word. Per the verified DigiKey listing and Microchip datasheet, it integrates 3.5KB (2K x 14) of One-Time-Programmable (OTP) program memory, 128 bytes of data RAM, and 22 digital I/O pins, all housed in a 28-pin SSOP (209 mil) package. The device operates from a wide 2.5V to 6.0V supply range, supporting both 3.3V and 5V rails commonly found in industrial and embedded systems. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (ROM/Flash/OTP), working RAM, and programmable I/O peripherals. The PIC16LC72A is part of Microchip's mid-range PIC16 family, which sits between the baseline PIC10/12/16 family and the high-performance PIC18 family. MCUs serve as the decision-making element in embedded systems, replacing discrete logic and reducing BOM count. The "LC" prefix designates the low-voltage CMOS variant, optimized for portable and battery-powered designs, and the "04" suffix indicates the 4 MHz maximum operating frequency. Key differentiating features include hardware I2C and SPI peripherals (the first PIC16 mid-range device to add dedicated I2C/SPI), a 5-channel 8-bit ADC, three timers (Timer0, Timer1, Timer2), a capture/compare/PWM (CCP) module, and an 8-bit parallel slave port. The architecture uses a Harvard design with separate program and data buses, enabling single-cycle opcode fetch and most instructions executing in one instruction cycle (250 ns at 4 MHz). It supports in-circuit serial programming (ICSP) via two pins, allowing OTP memory to be programmed after PCB assembly. Typical applications include industrial control panels, automotive body electronics, sensor interfaces, low-end consumer appliances, and battery-powered instrumentation. The wide voltage range and OTP memory make it ideal for moderate-volume production where mask-ROM cost is not amortized but in-system reprogrammability is not required. It is commonly used as a glue logic replacement in designs migrating from discrete 74HC logic or older PIC16C5x/PIC16C7x parts. When designing with the PIC16LC72A-04I/SS, pay attention to the OTP memory constraint: parts can be programmed only once, so firmware must be production-final before programming. The 22 I/O pins share function with the ADC inputs, I2C, SPI, and parallel slave port, so peripheral allocation should be finalized before PCB layout. The "I" suffix denotes the industrial temperature grade (-40C to +85C), suitable for non-automotive environments. This page synthesizes distributor pricing, drop-in compatible PIC16C72A variants, and practical design notes not found on the manufacturer datasheet, supporting engineering selection and procurement decisions.

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PIC16LC72AT-04/SO - 8-Bit 4MHz MCU 3.5KB OTP 28-SOIC | Microchip
PIC16LC72AT-04/SO

PIC16LC72AT-04/SO - 8-Bit 4MHz MCU 3.5KB OTP 28-SOIC | Microchip

The Microchip Technology PIC16LC72AT-04/SO is an 8-bit RISC CMOS microcontroller from the PIC16C family, supplied in a 28-pin SOIC (SO) wide-body surface-mount package and qualified for tape-and-reel packaging. It integrates 3.5 KB (2K x 14) of One-Time-Programmable (OTP) program memory, 128 bytes of data RAM, and a hardware multiply instruction, executing one instruction per 4 MHz oscillator cycle (1 MIPS at 4 MHz). The 'LC' suffix denotes the low-power CMOS process supporting 3.3 V operation, with the 'A' suffix indicating an enhanced silicon revision versus the original PIC16C72. A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory, working RAM, and peripheral set. The PIC16C family uses a Harvard RISC architecture with separate program and data buses, allowing the CPU to fetch an opcode while reading data memory in the same cycle. Within Microchip's taxonomy, the PIC16LC72A sits in the mid-range PIC16 family -> 8-bit PIC microcontroller -> MCU -> semiconductor hierarchy. The '04' speed suffix specifies 4 MHz maximum oscillator frequency, and 'SO' is the package designator for 28-pin 300-mil SOIC. Key features include the 8-bit accumulator-based ALU, 22 I/O pins with high-current sink/source capability, three hardware timers (Timer0, Timer1, Timer2), a 10-bit successive-approximation ADC with up to 5 channels, a 5-bit digital-to-analog converter (CCP/PWM module), a synchronous/asynchronous serial port (SSP/SPI/I2C), and a USART with on-chip baud-rate generator. Brown-out Reset (BOR), Power-on Reset (POR), and a watchdog timer with its own on-chip RC oscillator are also integrated. The instruction set is 35 single-word instructions, most executing in a single instruction cycle. The architecture uses a modified Harvard layout with a 14-bit program word and 8-bit data path. The enhanced PIC16C72A silicon revision adds hardware multiply, larger stack depth (8 levels), and improved ADC linearity compared with the original PIC16C72. Internal RC oscillator options and selectable oscillator modes support crystal, resonator, and external clock sources across the 0-4 MHz range. The CMOS process yields typical active current of 2 mA at 4 MHz / 5 V and standby currents under 1 uA at 3.3 V. Typical applications include low-power embedded control for white goods and small appliances, HVAC fan controllers, security-system sensor nodes, remote-keyless-entry transmitters, low-end motor-control loops (small DC and BLDC fans), battery chargers, and consumer-electronics human-interface panels where deterministic 8-bit control at low cost is preferred over 32-bit performance. The 28-pin SOIC footprint also suits retrofitting older 28-pin PIC16C72 boards with an enhanced-A revision drop-in. A key design consideration is OTP memory: code cannot be erased after programming, so for in-field firmware updates choose the PIC16F72 (Flash) or PIC16CR72 (ROM) variants instead. Ensure your programmer supports 3.3 V (LC) programming levels and use AC162061-ICD or MPLAB ICD 2/3 in-circuit debug for development with the -ICE/-ICD suffix parts. This page consolidates distributor pricing, drop-in cross-reference alternatives, and design notes not found in the manufacturer datasheet, giving engineers a single reference for sourcing and replacing the PIC16LC72AT-04/SO.

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PIC16LC72AT-04I/SO - 8-bit 4MHz MCU, 3.5KB OTP, 28-SOIC | Microchip
PIC16LC72AT-04I/SO

PIC16LC72AT-04I/SO - 8-bit 4MHz MCU, 3.5KB OTP, 28-SOIC | Microchip

The Microchip Technology PIC16LC72AT-04I/SO is an 8-bit RISC CMOS microcontroller from the PIC16C family, operating at up to 4MHz clock input with 200 ns instruction cycle in a 28-pin SOIC (7.50 mm width) package. It integrates 3.5KB (2K x 14) of One-Time Programmable (OTP) program memory, 128 bytes of data RAM, and 22 digital I/O pins. A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory, data RAM, and programmable peripherals. The PIC16C/LC family uses a Harvard-architecture RISC core optimized for embedded control: 35 single-word instructions, all single-cycle except program branches which take two cycles. The "LC" suffix denotes the low-voltage CMOS variant supporting 3.3V operation, while the "A" suffix denotes an enhanced silicon revision with improved peripherals. Key features include a 5-channel 8-bit Analog-to-Digital Converter (ADC), synchronous serial port (SSP) supporting SPI and I2C, USART, two 8-bit timers and one 16-bit timer with capture/compare/PWM, and a watchdog timer with its own on-chip RC oscillator. Power-saving features include selectable oscillator options (RC, LP, XT, HS) and a SLEEP mode. The device operates across the industrial temperature range of -40C to +85C. This part targets cost-sensitive, moderate-performance embedded applications where deterministic real-time response, low power, and small code footprint matter more than raw MIPS. Compared to flash-based PIC16F parts, OTP requires a one-time programmer and is masked out for production; designers typically prototype on the PIC16F72 equivalent and migrate to PIC16LC72A-04I/SO for volume. Typical applications include appliance controls, sensor interfaces, low-end motor control (small DC fans, solenoids), battery chargers, simple user-interface panels, and consumer electronics. The on-chip ADC and PWM modules are particularly useful for closed-loop control. When designing with this device, verify the chosen oscillator mode matches the external crystal or resonator, and reserve the MCLR pin for proper reset behavior unless using internal configurations. Production programming requires a compatible OTP programmer since the part cannot be erased by UV light.

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PIC16LC72T-04/SS - 8-bit MCU, 4MHz, 3.5KB OTP, 28-SSOP | Microchip
PIC16LC72T-04/SS

PIC16LC72T-04/SS - 8-bit MCU, 4MHz, 3.5KB OTP, 28-SSOP | Microchip

The Microchip Technology PIC16LC72T-04/SS is an 8-bit PIC16C-series CMOS RISC microcontroller built around a 14-bit instruction word and an 8-bit data path, delivering 4 MIPS peak throughput at a 4 MHz oscillator in a 28-pin SSOP package. It integrates 3.5 KB (2K x 14) of One-Time Programmable (OTP) program memory, 128 bytes of data RAM, and a 5-channel 8-bit analog-to-digital converter for mixed-signal front-end designs. A PIC microcontroller (Programmable Intelligent Computer) is a Harvard-architecture RISC device that separates program and data memory, executes most instructions in a single clock cycle, and is widely used for embedded control in industrial, consumer, and automotive body-electronics applications. Within Microchip's portfolio, the PIC16C mid-range family sits between the baseline PIC10/12/16 and the high-end PIC17/18, offering a balance of peripheral integration, code efficiency, and ease of development. Key features of the PIC16LC72T-04/SS include a Synchronous Serial Port (SSP) supporting both SPI and I2C, a Capture/Compare/PWM (CCP) module with up to 10-bit PWM resolution, an 8-bit Timer0 with an 8-bit prescaler, and brown-out detection circuitry for a deterministic Brown-out Reset (BOR). The 'LC' suffix indicates a low-voltage CMOS variant that operates across 2.5 V to 5.5 V, while the 'T' denotes tape-and-reel packaging. OTP memory is programmed once but provides lower unit cost than windowed or flash parts for mature production volumes. Typical applications include low-cost motor control (small DC fans and solenoids), sensor signal conditioning with the on-chip ADC, I2C/SPI peripheral expansion in human-machine interface (HMI) boards, and battery-powered instrumentation. The 28-SSOP footprint is industry-standard, easing layout migration across the PIC16C7x family. When designing, place a 0.1 uF decoupling capacitor within 5 mm of VDD, and observe the 4 MHz maximum oscillator to maintain instruction-cycle accuracy. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC16LC72T-04I/SO - 8-Bit 4MHz 3.5KB OTP MCU | Microchip
PIC16LC72T-04I/SO

PIC16LC72T-04I/SO - 8-Bit 4MHz 3.5KB OTP MCU | Microchip

The Microchip Technology PIC16LC72T-04I/SO is an 8-bit CMOS microcontroller from the PIC16C family, built around the mid-range RISC architecture and packaged in a 28-pin SOIC (SO) gull-wing industrial-grade package. It operates at a maximum clock speed of 4 MHz and integrates 3.5 KB of OTP program memory (organized as 2K x 14) plus 128 bytes of RAM, providing a compact compute node for embedded control with on-chip analog input. The PIC16LC72 belongs to the broader microcontroller category that sits within embedded microcontrollers -> 8-bit microcontrollers -> Flash/OTP programmable MCUs -> industrial/system-on-chip devices. The LC variant denotes the low-voltage / low-power CMOS process, which permits operation across 2.5 V to 5.5 V supply rails while drawing less current than the standard PIC16C72 device, enabling battery-powered designs. Key features include a 4 MHz oscillator input with a 1 microsecond instruction cycle for most single-cycle instructions, an integrated multi-channel 8-bit A/D converter, 22 digital I/O lines, and the classical PIC16C mid-range instruction set of 35 single-word instructions that simplifies assembly and C development. All instructions execute in a single cycle except program branches, which take two cycles. Architecturally, the device combines a Harvard-style program/data memory split with an accumulator-based ALU, a 13-bit program counter that addresses up to 8K words, and a peripheral set that includes a watchdog timer, brown-out reset (BOR) circuit, and a capture/compare/PWM (CCP) module. Industrial-grade silicon supports an extended -40 C to +85 C ambient range (the "I" suffix) for harsh-environment deployment. Typical applications include motor control feedback loops where the on-chip A/D converter samples shunt currents, industrial sensor signal conditioning and digital logic replacement, automotive interior subsystems, appliance control boards, and general purpose low-power embedded logic. The OTP program memory makes the part best suited for production runs where the firmware is frozen at programming time. When designing with this MCU, factor in the 4 MHz maximum clock rate before selecting it for time-critical protocols; I2C/SPI bit-banged slaves work fine, but high-speed UART and CAN buses at full bus load may saturate the CPU. Also confirm that the OTP (one-time-programmable) memory model fits the production flow; for prototype iteration a flash-based sibling such as the PIC16F72 or PIC16LC72A family is preferable. This page synthesizes distributor pricing, verified drop-in alternatives, and practical design notes that go beyond what is captured in the Microchip datasheet family.

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PIC16LC72T-04I/SS - 4MHz 8-Bit OTP MCU, 3.5KB | Microchip
PIC16LC72T-04I/SS

PIC16LC72T-04I/SS - 4MHz 8-Bit OTP MCU, 3.5KB | Microchip

The Microchip PIC16LC72T-04I/SS is an 8-bit CMOS microcontroller based on the PIC16C family architecture, offering 3.5KB (2K x 14) of OTP program memory, 128 bytes of RAM, and 22 I/O pins in a 28-pin SSOP package. Operating at up to 4 MHz from a 2.5V to 5.5V supply, it integrates a 5-channel 8-bit A/D converter, one 8-bit timer and one 16-bit timer/counter, a Capture/Compare/PWM (CCP) module with 10-bit PWM maximum resolution, and a Synchronous Serial Port (SSP) supporting both SPI and I2C. An 8-bit microcontroller (MCU) is a small computer-on-a-chip built around an 8-bit data bus, typically executing one instruction per clock cycle. Within the broader taxonomy, the PIC16LC72 belongs to the PIC 8-bit mid-range microcontrollers family, which sits inside Microchip's PIC microcontroller portfolio, itself part of the larger microcontroller integrated circuit category in the embedded semiconductor hierarchy. Mid-range PIC devices like this one are widely used in cost-sensitive, deterministic embedded control applications. Key features of the PIC16LC72T-04I/SS include a brown-out reset (BOR) circuit for reliable operation during supply droops, a watchdog timer (WDT) for code-flow protection, an analog 8-bit ADC with five input channels, and the previously noted SSP block capable of running SPI master/slave or I2C master/slave. The device supports in-circuit serial programming (ICSP) via two pins, enabling field updates and simplified prototyping. Architecturally, the PIC16LC72T-04I/SS uses a Harvard RISC core with separate program and data buses, allowing instruction fetch and operand read to occur in the same cycle. The 14-bit instruction word and 35-instruction set keep code density high, and the low-power CMOS process enables an extended operating range from -40C to +85C, suitable for industrial environments. Typical applications include low-cost motor control, battery chargers, SMPS control loops, automotive body electronics, sensor signal conditioning, and small appliances. The PIC16LC72T-04I/SS is particularly well suited for designs that benefit from the PIC ecosystem (MPLAB X IDE, XC8 compiler, MPLAB ICD in-circuit debuggers) and the broad library of application notes. When designing with this device, ensure decoupling capacitors are placed within 4 mm of the VDD pin and that MCLR is properly pulled up through a resistor. OTP memory cannot be re-programmed, so verify code with a windowed or flash equivalent (such as PIC16F72) during development before committing to OTP for production. This page synthesizes distributor pricing, drop-in same-package alternatives from the PIC16 family, and practical design notes not consolidated on the manufacturer datasheet.

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PIC16LC73A-04/SO - 8-Bit MCU 4MHz 7KB OTP 28-SOIC | Microchip
PIC16LC73A-04/SO

PIC16LC73A-04/SO - 8-Bit MCU 4MHz 7KB OTP 28-SOIC | Microchip

The Microchip PIC16LC73A-04/SO is an 8-bit CMOS RISC microcontroller from the PIC16C7X mid-range family, offering 7KB of OTP program memory, 192 bytes of RAM, and 22 digital I/O pins in a 28-pin SOIC wide-body package. It integrates a 5-channel 8-bit analog-to-digital converter (ADC), one 8-bit timer/counter, one 16-bit timer/counter, and a USART serial port, all operating from a 3.3V or 5V supply. The "-04" speed grade specifies a 4 MHz maximum oscillator frequency, while the "LC" prefix denotes the low-voltage CMOS variant optimized for battery-backed and portable designs. An 8-bit MCU (microcontroller unit) is a single-chip computer that integrates a CPU, RAM, program memory, and peripherals on one die; the PIC16C7X family specifically uses a RISC (Reduced Instruction Set Computer) Harvard architecture where program and data buses are separate, allowing simultaneous instruction fetch and data access. Within Microchip's taxonomy this part sits at: PIC16C7X -> PIC16 mid-range -> PIC16 family -> 8-bit PIC microcontrollers -> microcontrollers -> microprocessors and controllers -> semiconductors. RISC instruction sets enable deterministic interrupt latency and tight code density, both valuable for embedded control loops. Key features include a 35-instruction word-optimized RISC instruction set, 14-bit wide instructions, 8-level hardware stack, 192-byte data RAM, four interrupt sources, programmable code protection, in-circuit serial programming (ICSP) via two pins, power-on reset, power-saving sleep mode, watchdog timer with on-chip RC oscillator, and a wide operating voltage range of 2.5V to 5.5V. The integrated 8-bit ADC has five input channels with conversion speeds suitable for low-frequency analog monitoring. From an architectural standpoint, the PIC16C73A distinguishes itself from the older PIC16C71 by adding a USART for asynchronous serial communication and additional timer/counter resources. The 28-pin SOIC wide-body package provides generous pad pitch for hand-soldering and rework, which is why this part has historically been favored in through-hole-style prototypes and industrial control modules. Typical applications include industrial automation and process control sensor nodes, motor and solenoid driver interfaces, HVAC thermostat controllers, appliance user-interface panels, and battery-powered handheld instruments requiring 3.3V operation. Its 5-channel ADC makes it well suited to multi-signal monitoring, while the USART enables straightforward communication with host processors or remote sensors. When designing with the PIC16LC73A-04/SO, allocate a 4 MHz crystal or resonator and follow Microchip's recommended decoupling scheme of 100 nF near each supply pin. Note that OTP memory cannot be reprogrammed in-circuit, so firmware development should first target the windowed (JW) or Flash (F) variants of the same family for prototyping, then migrate code to this OTP production part for low-cost assembly. This page synthesizes distributor pricing, drop-in Microchip same-family alternatives, and practical design notes not consolidated in the manufacturer datasheet, enabling engineers to evaluate lifecycle risk and second-source options for the PIC16LC73A-04/SO.

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PIC16LC73A-04I/SO - 8-Bit 4MHz MCU, 7KB OTP, 28-SOIC | Microchip
PIC16LC73A-04I/SO

PIC16LC73A-04I/SO - 8-Bit 4MHz MCU, 7KB OTP, 28-SOIC | Microchip

The Microchip Technology PIC16LC73A-04I/SO is an 8-bit RISC microcontroller from the PIC16C family, featuring 4 MHz CPU clock, 7 KB (4K x 14) of One-Time-Programmable (OTP) program memory, 192 bytes of RAM, and 22 digital I/O pins, all integrated in a 28-pin SOIC (SO) wide-body package. The 'LC' prefix denotes the low-power CMOS process, supporting both 3.3 V and 5 V operation across a -40C to +85C industrial temperature range. The '-04' speed suffix specifies 4 MHz maximum oscillator frequency, and the 'I' suffix indicates the industrial temperature grade. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, data RAM, and peripheral interfaces such as timers, communication ports, and analog-to-digital converters. Within the broader embedded semiconductor taxonomy, MCUs sit under microcontrollers -> 8-bit microcontrollers -> PIC microcontrollers -> mid-range PIC16 family. The PIC16LC73A specifically belongs to the PIC16C7X sub-family, which added integrated A/D converters to the PIC16CXX mid-range architecture and is widely used in mixed-signal embedded designs. Key features include Harvard-architecture RISC CPU with 35 single-cycle instructions, 8-level hardware stack, 4 MHz internal clock with 1 s instruction cycle, integrated 8-bit A/D converter (5 channels, 8 channels depending on variant), two 8-bit timers and one 16-bit timer, USART with 9-bit address detection, capture/compare/PWM module, and synchronous serial port (SSP) supporting SPI and I2C. The wide 2.5 V to 5.5 V operating range allows battery-powered and 5 V regulated designs to share the same firmware, while the CMOS process keeps quiescent current low for sleep-mode applications. Architecturally, the PIC16LC73A uses a 14-bit instruction word with separate program and data buses, enabling most instructions to execute in a single oscillator cycle. The 22 I/O pins are arranged across ports A, B, and C, with individual pin direction control via TRIS registers. On-chip peripherals include a five-channel 8-bit A/D converter with 25 s conversion time, making the part suitable for sensor signal acquisition and process control where modest precision is sufficient. Typical applications include industrial control and sensor interface boards, automotive body electronics (non-safety), HVAC thermostat controllers, appliance front-panel controllers, low-cost motor control drivers, uninterruptible power supply (UPS) supervisory logic, and battery chargers. The combination of integrated A/D, USART, and PWM makes the PIC16LC73A especially attractive in designs that previously required a discrete MCU plus an external A/D converter. When designing with this device, pay attention to the OTP program memory: code cannot be erased or rewritten, so OTP is suitable only for production-volume parts where in-circuit reprogramming is not needed. For prototyping or field-upgradeable firmware, consider the flash-based PIC16F73 in the same 28-SOIC footprint as a drop-in alternative with the same peripheral map. Always include the recommended decoupling capacitors (100 nF + 10 uF) close to VDD/VSS and follow Microchip's oscillator layout guidelines to avoid noise on the OSC1/OSC2 pins. This page synthesizes distributor pricing, verified drop-in alternatives sourced from Microchip's own cross-reference database, and practical design notes not found in the standalone datasheet, giving engineers a single reference for sourcing, replacement selection, and PCB integration decisions.

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PIC16LC73A-04I/SP - 8-bit 4MHz 7KB OTP MCU 28-SPDIP | Microchip
PIC16LC73A-04I/SP

PIC16LC73A-04I/SP - 8-bit 4MHz 7KB OTP MCU 28-SPDIP | Microchip

The Microchip Technology PIC16LC73A-04I/SP is an 8-bit CMOS RISC microcontroller from the PIC16C7X mid-range family, operating at a maximum clock frequency of 4 MHz with 7 KB (4K x 14) of One-Time Programmable (OTP) program memory, housed in a 28-pin SPDIP (Skinny Plastic DIP) through-hole package. It is the industrial-temperature-grade variant (the "I" suffix) of the PIC16LC73A-04/SP family, designed for -40C to +85C operation and supplied in a 28-SPDIP form factor. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (ROM/Flash/OTP), data RAM, I/O peripherals, and timers on a single die. The "LC" prefix in PIC16LC73A denotes a low-voltage CMOS variant suitable for battery-powered systems, while the "7X" suffix indicates a mid-range core with integrated analog peripherals such as 8-bit A/D converters. MCUs sit within the broader taxonomy of microcontrollers -> embedded controllers -> semiconductors -> integrated circuits. Key features include 192 bytes of data RAM, 22 general-purpose digital I/O lines, three timer/counter modules (Timer0, Timer1, Timer2), a 5-channel 8-bit Analog-to-Digital Converter (ADC), and on-chip communication peripherals including I2C/SPI (Synchronous Serial Port, SSP) and a USART. The PIC16C7X family uses a 14-bit instruction word architecture with single-cycle execution for most instructions except branches, delivering roughly 4 MIPS at 4 MHz. Typical applications include industrial control logic, sensor signal conditioning, low-speed serial communication bridges, battery-powered instrumentation, and legacy embedded systems requiring OTP one-time-programmable code storage. The wide -40C to +85C industrial temperature range makes it suitable for factory automation, HVAC controllers, and automotive aftermarket accessories. When designing with this device, allocate sufficient decoupling (0.1 uF ceramic plus 10 uF bulk) close to VDD/VSS pins, and respect the 5.5 V absolute maximum on VDD for LC variants. The ICD (In-Circuit Debugger) interface is not available on -04 (4 MHz) variants; for development, use an equivalent -10 or -20 variant with a debug header or program the OTP device directly with a production programmer. This page synthesizes distributor pricing, drop-in same-package alternatives (same-brand and cross-brand), and practical design notes not aggregated on a single manufacturer or distributor page.

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PIC16LC73AT-04/SO - 8-Bit 4MHz MCU 7KB OTP 28-SOIC | Microchip
PIC16LC73AT-04/SO

PIC16LC73AT-04/SO - 8-Bit 4MHz MCU 7KB OTP 28-SOIC | Microchip

The Microchip PIC16LC73AT-04/SO is an 8-bit RISC microcontroller from the PIC16CXX mid-range family, operating at 4 MHz with 7 KB (4K x 14) of One-Time-Programmable (OTP) program memory, 192 bytes of RAM, and 22 digital I/O pins, all housed in a 28-pin SOIC (SO) gull-wing surface-mount package rated for the commercial temperature grade. What is a PIC16C-series microcontroller? The PIC16C7X family (PIC16C73/74/76/77) is a class of low-cost, high-performance, CMOS, fully-static 8-bit microcontrollers with integrated analog-to-digital (A/D) converters, belonging to Microchip's PIC16CXX mid-range architecture. In the broader hierarchy, an MCU (microcontroller unit) is a complete computer-on-a-chip integrating CPU, memory, and peripherals; the PIC16C73 specifically targets embedded control applications needing on-chip ADC and capture/compare PWM, bridging simple 8-bit designs (PIC12/PIC16F baseline) and higher-performance 16-bit dsPIC/PIC24 families. The "L" prefix indicates a low-voltage variant supporting operation down to approximately 2.5 V, while the "T" suffix denotes tape-and-reel packaging for high-volume assembly. Key features of the PIC16LC73AT-04/SO include a Harvard RISC architecture with 35 single-cycle instructions, a 14-bit instruction word, integrated 8-channel 8-bit ADC, two 8-bit and one 16-bit timer/counters, capture/compare/PWM (CCP) modules, a USART/SCI synchronous-serial port, and an operating voltage range of 2.5 V to 6.0 V. The device supports in-circuit serial programming (ICSP) for OTP devices and is designed for the commercial temperature grade. Typical applications span industrial control, low-power sensor interfaces, automotive body electronics (non-safety), appliance control, and battery-powered instruments. The wide 2.5 V to 6.0 V supply range enables direct connection to 3.3 V regulated rails as well as legacy 5 V logic systems. When designing with this MCU, verify the OTP programming window and toolchain compatibility with MPLAB-X IDE plus MPAS/XC8 compilers; choose the PIC16C73B or PIC16F73 flash variant if in-field firmware updates are required.

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