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PIC16LC66T-04I/SO

PIC16LC66T-04I/SO - 8-bit MCU, 14KB OTP, 4MHz, 28-SOIC | Microchip

The Microchip Technology PIC16LC66T-04I/SO is an 8-bit RISC microcontroller from the PIC® 16C family with a 4MHz core speed, 14KB (8K x 14) One-Time Programmable (OTP) program memory, and 368 bytes of RAM, housed in a 28-pin SOIC package. The "LC" suffix denotes a low-power CMOS variant designed for 2.5V to 5.5V operation, while the "I" suffix indicates the industrial temperature grade (-40°C to +85°C) and the "T" suffix denotes tape-and-reel packaging. The "04" speed designator specifies a 4MHz maximum oscillator frequency. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, non-volatile program memory, and peripherals such as timers, ADC, and I/O. PIC microcontrollers use a Harvard RISC architecture with a small, fixed instruction set, making them popular for embedded control, instrumentation, and legacy industrial systems. Within the broader semiconductor taxonomy, the PIC16LC66 sits at: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor IC. Its ultra-low-power CMOS design positions it as a fit for battery-backed and power-constrained applications versus standard PIC16C6X parts. Key features include 22 digital I/O pins organized across multiple ports (Port A, B, C), three timers (Timer0 8-bit with prescaler, Timer1 16-bit with sleep-mode crystal increment, Timer2 8-bit), a capture/compare/PWM (CCP) module, a 5-channel 8-bit ADC, and a universal synchronous/asynchronous receiver-transmitter (USART/SCI). The OTP program memory allows one-time factory or field programming, while 368 bytes of data RAM support runtime variables and stack operations. Typical applications include industrial sensor interfaces, low-power remote controls, appliance controllers, building automation nodes, white-goods motor control, simple HMI panels, and legacy embedded control boards. The 28-SOIC package supports surface-mount assembly, enabling compact PCB designs in space-constrained products. When designing with this part, ensure that code density and stack depth fit within 14KB / 8-level hardware stack. The PIC16LC66 uses One-Time Programmable memory, so firmware revisions require physical device replacement; consider PIC16F66 for Flash-based upgrades on the same pinout. This page synthesizes distributor pricing, drop-in alternatives from the same PIC16C6X family, and practical design notes not found in a quick-datasheet summary. All pricing is quoted as of 2026-09-22.

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PIC16LC67-04/L

PIC16LC67-04/L - 8-Bit 4MHz MCU 14KB OTP 44-PLCC | Microchip

The Microchip Technology PIC16LC67-04/L is an 8-bit RISC microcontroller IC from the PIC PIC 16C family, featuring 14KB (8K x 14) of One-Time Programmable (OTP) program memory and 368 bytes of RAM, housed in a 44-pin PLCC package measuring 16.59 x 16.59 mm. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (ROM/OTP/Flash), RAM, and peripheral I/O onto a single silicon die. The PIC 16C family uses a Harvard architecture with separate program and data buses, enabling single-cycle instruction fetch and execution at 4 MHz for a 1 microsecond instruction cycle. In the broader semiconductor taxonomy, MCUs sit beneath microprocessors and above simple logic ICs, while OTP memory technology places this part in the low-cost, factory-programmed category suited for mature, high-volume products. Key features include a Harvard RISC core with 35 single-word instructions, 33 digital I/O pins, three timers (Timer0 8-bit, Timer1 16-bit, Timer2 8-bit), a 10-bit successive-approximation ADC, and a USART module. The device operates from a 2.5V to 5.5V supply (the LC suffix denotes the low-power/commercial voltage range), supports oscillator frequencies up to 20 MHz, and includes a watchdog timer with its own on-chip RC oscillator for reliable recovery from software faults. The architecture uses a 14-bit instruction word with an 8-bit data path, providing 8K words of program memory addressing. The integrated analog and digital peripherals - including a Capture/Compare/PWM (CCP) module and two comparator modules - allow direct interfacing to motors, sensors, and human-interface hardware without external glue logic, reducing total system BOM cost for embedded control applications. Typical applications include industrial control systems, consumer appliance controllers, HVAC thermostat logic, automotive body electronics (non-safety), and office automation peripherals where the OTP memory provides a stable code image for the product lifecycle. The 44-PLCC package supports through-hole socket assembly and is well suited to programming via a device programmer or in-circuit debugging with MPLAB tools. When designing with the PIC16LC67-04/L, evaluate whether the OTP memory suits your production volume and firmware update strategy. For prototypes or low-volume builds, consider the PIC16F877 Flash-based equivalent in the same PLCC-44 footprint for iterative development. Ensure the oscillator configuration matches your timing requirements and that the watchdog timer is properly serviced by the firmware state machine to maintain system reliability. This page synthesizes current distributor pricing, drop-in alternatives within the same 44-PLCC footprint, and design guidance not found on the manufacturer datasheet cover page.

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PIC16LC67-04/PT

PIC16LC67-04/PT - 8-Bit 4MHz MCU, 14KB OTP, 44-TQFP | Microchip

The Microchip Technology PIC16LC67-04/PT is an 8-bit PIC16C-family RISC microcontroller integrating 14KB (8K x 14) of One-Time-Programmable (OTP) program memory, 368 bytes of RAM, and 33 general-purpose I/O pins, operating at up to 4MHz from a 2.5V to 6.0V supply in a 44-pin TQFP (10x10) surface-mount package. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, integrating a CPU, program memory, data RAM, and peripherals. Within the broader component taxonomy, the PIC16LC67 belongs to the 8-bit MCU category -> microcontroller -> embedded processor -> integrated circuit -> semiconductor. It uses Harvard architecture with separate program and data buses, fully static CMOS design, and is part of the legacy PIC16C6x family used for industrial control, instrumentation, and consumer-electronics embedded designs. Key specifications include 4MHz maximum clock, 14-bit instruction word (giving 8K addressable program words), 368 x 8 SRAM, 33 digital I/O lines, an external oscillator interface, and a wide 2.5V to 6.0V operating voltage range. The OTP memory allows one-time field programming of application firmware, which lowers per-unit cost versus flash MCUs and suits mature, code-stable designs. The 44-pin TQFP provides compact board-area integration while exposing all 33 I/O, ADC, and communication peripherals. Architecturally, the PIC16LC67 uses CMOS EPROM/ROM technology, fully static operation (clock can be stopped for power savings), and a 35-instruction RISC instruction set with most instructions executing in a single instruction cycle. The wide supply range supports battery-backed and 5V-rail industrial systems; the LC variant is the low-power commercial-temperature (0C to +70C) grade. Typical applications include industrial control panels, sensor signal conditioning, motor-driver front-ends, embedded instrumentation, and legacy 5V system retrofits where a code-stable OTP MCU is preferred. The 33 I/O and 368-byte RAM make it suitable for moderate-density I/O expansion and small protocol stacks (I2C/SPI slave, UART) implemented in firmware. When designing with this MCU, ensure your programmer supports the PIC16C OTP device window (UV erase not applicable - one-time programmable). Use the ICD/ICSP header for in-circuit programming, and verify the device ID matches before code commit, since OTP parts cannot be re-programmed once locked. This page synthesizes distributor pricing, pin-compatible alternatives in the 44-pin TQFP family, and practical design notes not found in the manufacturer datasheet.

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PIC16LC67-04I/P

PIC16LC67-04I/P - 8-bit PIC MCU 14KB EPROM 33 I/O | Microchip

The Microchip Technology PIC16LC67-04I/P is an 8-bit RISC microcontroller from the PIC16C family with 14KB of EPROM program memory and 368 bytes of RAM, delivered in a 40-pin windowed CERDIP through-hole package. It operates at a maximum clock speed of 4 MHz, is rated for a supply voltage of 2.5 V to 5.5 V (typical 3.3 V or 5 V rails), and provides 33 digital I/O pins across two 8-bit ports (PORTA, PORTB) plus two 8-bit ports (PORTC, PORTD/E) shared with peripheral functions. The architecture follows the classic PIC16 enhanced mid-range core with a Harvard bus and a 14-bit instruction word. A microcontroller (MCU) is a single-chip computer integrating a CPU core, non-volatile program memory, volatile data RAM, peripheral modules (timers, ADC, USART, I/O ports), and interrupt control on one die. PIC16C-series parts use one-time-programmable EPROM (UV-erasable windowed variants for development, windowed CERDIP packages carry a quartz window for erasing under UV light). In the broader taxonomy, the PIC16LC67 is an 8-bit MCU -> microcontroller -> embedded processor -> semiconductor IC, and it belongs to the legacy PIC16C6x mid-range family that bridged early PIC16C5x and the later PIC16F Flash families. Key features include three timer/counter blocks (Timer0 8-bit with 8-bit prescaler; Timer1 16-bit with prescaler and external crystal increment-during-sleep capability; Timer2 8-bit with postscaler), a 10-bit multi-channel ADC, a synchronous/asynchronous USART with addressable 9-bit mode, an SPI/I2C MSSP peripheral, capture/compare/PWM (CCP) modules, and a watchdog timer with its own on-chip RC oscillator for reliable operation. The 40-pin CERDIP-40 form factor exposes external interrupt pins (RB0/INT), analog inputs (RA0-RA5), and parallel slave port functions on PORTD/PORTE for direct bus attachment to external controllers. The PIC16LC67 implements the PIC16C6x architecture: a RISC core with 35 single-cycle instructions, an 8-level deep hardware stack, and a 14-bit program word with 8K x 14 user-addressable program memory. The 'LC' suffix indicates the low-voltage CMOS process variant supporting operation down to 2.5 V, an upgrade over the original PIC16C67's 3.0 V minimum. The instruction cycle is 4 clocks (1 µs at 4 MHz), and the device supports in-circuit serial programming (ICSP) via two dedicated pins (RB6/RB7) for production-line firmware loading. Typical applications include industrial control panels, sensor signal conditioning and acquisition nodes, motor drive interface logic, consumer appliance controllers, instrumentation front-ends, and legacy embedded systems that still require EPROM-based firmware for long-term archival stability. The windowed CERDIP package is especially favored in development and low-volume production where iterative firmware changes and UV erasure are acceptable. When designing with this part, plan the decoupling network carefully: place one 100 nF ceramic capacitor adjacent to each VDD/VSS pin pair and a bulk 10 µF tantalum or aluminum electrolytic on the main supply rail. Ensure the MCLR reset pin is pulled high through a 10 kΩ resistor with a 100 nF capacitor to ground for noise immunity. EPROM windowed parts must be shielded from fluorescent and direct sunlight; cover the window with an opaque label after programming. This page synthesizes distributor pricing, pin-compatible alternatives (including the same-family variants PIC16LC66 and PIC16LC65A), and practical design notes not aggregated on the manufacturer datasheet or a single distributor page.

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PIC16LC67-04I/PQ

PIC16LC67-04I/PQ - 8-bit 4MHz 14KB OTP MCU 44-MQFP | Microchip

The Microchip Technology PIC16LC67-04I/PQ is an 8-bit RISC microcontroller from the PIC16C family, delivering 4 MHz maximum clock speed with 14 KB (8K x 14) of One-Time Programmable (OTP) program memory in a 44-pin MQFP (10x10 mm) surface-mount package. It integrates 368 bytes of RAM and 33 general-purpose I/O pins, supporting the low-voltage 'LC' core variant optimized for 2.5 V to 6.0 V operation. A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory, working RAM, and configurable I/O peripherals. Within the component taxonomy, the PIC16LC67 belongs to the 8-bit microcontroller family, which is itself a branch of the broader microcontroller IC category, sitting beneath embedded processors and the general semiconductor hierarchy. The 'LC' prefix indicates a low-power CMOS variant of the PIC16C architecture, designed for battery-powered and portable applications where active and standby current budgets are critical. Key features of the PIC16LC67 include an 8-bit Harvard RISC architecture with a reduced instruction set, three timers, two capture/compare/PWM modules, a USART serial interface, and a 10-bit (or 8-bit) analog-to-digital converter depending on silicon revision. The device also supports in-circuit serial programming (ICSP), enabling firmware updates after PCB assembly. The 44-MQFP package provides generous pin count for applications requiring multiple peripheral interfaces simultaneously. Typical applications include industrial control panels, instrumentation with serial telemetry, low-power sensor interface boards, and embedded control in automotive body electronics. The wide 2.5 V to 6.0 V supply range makes the LC variant suitable for both 3.3 V and 5 V system designs without level translation. When selecting this MCU, consider that OTP memory requires mask-programmed or windowed EPROM equivalents for production programming; for flash-based migration the PIC16F877 in the same 44-pin footprint is the recommended successor. Designers should also evaluate the LC variant for active-mode current consumption since it differs from the F-series equivalent. Always validate pin compatibility against the published datasheet before PCB redesign, as some PIC16 family members share only pin count but differ in peripheral mapping.

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PIC16LC67-04I/PT

PIC16LC67-04I/PT - 8-bit MCU, 14KB OTP, 4MHz, 44-TQFP | Microchip

The Microchip Technology PIC16LC67-04I/PT is a low-power 8-bit CMOS microcontroller from the PIC16C family, integrating 14KB of OTP program memory (8K x 14), 368 bytes of RAM, and 33 digital I/O lines in a 44-pin TQFP package. It executes instructions at up to 4MHz from an external oscillator and is built on Microchip's enhanced Harvard RISC architecture with 35 single-cycle instructions. What is an OTP microcontroller? An OTP (One-Time-Programmable) microcontroller is a type of MCU whose program memory can be written only once after manufacture, using a PROM-style programming algorithm. OTP MCUs sit between mask-ROM parts (cheapest in volume, but require factory NRE) and Flash-based MCUs (re-programmable, higher cost per bit). They are favored for cost-sensitive, stable-firmware production runs of moderate volume where code changes are rare. Key features include a fully static CMOS design, wide operating voltage range of 2.5V to 6.0V, integrated power-on reset, watchdog timer, and dual timer/counter modules. The 33 I/O pins can source/sink up to 25 mA each, making the part well-suited to directly drive LEDs, relays, and small solenoids. Industrial temperature grade (-40C to +85C) is denoted by the 'I' suffix. Technical depth: The PIC16LC67 uses a 14-bit wide instruction word with separate program and data buses, allowing simultaneous instruction fetch and data access. The LC prefix indicates the low-voltage CMOS process variant (versus the standard C variant), enabling operation down to 2.5V. Peripherals include a USART, MSSP (SPI/I2C master-slave), two 8-bit timers with 16-bit mode, and an 8-bit ADC. Typical applications include industrial control panels, appliance controllers, motor drive front-ends, smart sensors, and embedded data acquisition modules. The combination of low power, ample I/O count, and on-chip peripherals makes it suitable for human-machine interface boards. When designing with this part, note that OTP memory cannot be field-updated; provision a pre-programmed variant for production. The TQFP-44 footprint is also offered as a 44-MQFP (PQ suffix) - verify pin-out against your PCB land pattern before ordering. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC16LC67T-04/PQ

PIC16LC67T-04/PQ - 4MHz 8-Bit MCU 14KB OTP 44-MQFP | Microchip

The Microchip Technology PIC16LC67T-04/PQ is an 8-bit RISC microcontroller from the PIC16C family featuring 14KB of OTP program memory, 368 bytes of RAM, and a maximum clock frequency of 4 MHz, housed in a 44-pin MQFP (PQ) package. The "LC" prefix denotes the low-power CMOS variant, the "T" suffix indicates tape-and-reel packaging, the "-04" speed grade specifies 4 MHz operation, and "/PQ" identifies the 44-pin MQFP surface-mount package with gull-wing leads. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and peripherals on one silicon die. Within the broader taxonomy, the PIC16LC67 sits in the PIC16C mid-range family, which belongs to the Microchip PIC mid-range architecture, a Harvard RISC design optimized for deterministic instruction execution. The PIC16C6X family uses a 14-bit instruction word with only 35 single-word instructions, allowing most instructions to execute in one instruction cycle. This architectural simplicity enables embedded engineers to develop deterministic real-time control firmware without complex operating systems. Key features include 8192 ROM words (14K x 14) of OTP program memory, 368 bytes of data RAM, and 33 digital I/O pins distributed across multiple ports. The device operates from 2.5V to 5.5V VDD (low-power LC variant), supports DC to 4 MHz clock input, and includes integrated peripherals such as timers, a synchronous serial port (SSP) compatible with SPI and I2C, a USART, an 8-bit ADC, and capture/compare/PWM modules. The "LC" family uses CMOS process technology with low quiescent current, making the part suitable for battery-powered applications where standby power matters. Typical applications include industrial process control, instrumentation, automotive body electronics, low-power sensor nodes, and legacy embedded systems requiring 8-bit deterministic control. The wide operating voltage (2.5V-5.5V) and 33 I/O pins provide flexibility for both sensor interfacing and actuator driving. When designing with this device, ensure that OTP memory programming is performed before final PCB assembly (OTP cannot be erased after programming). For in-circuit reprogrammability, consider the PIC16F67 flash-based variant in the same pin-compatible package. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC16LC67T-04I/L

PIC16LC67T-04I/L - 8-Bit 4MHz MCU, 14KB OTP, 44-PLCC | Microchip

The Microchip Technology PIC16LC67T-04I/L is an 8-bit RISC microcontroller from the PIC16C family, featuring 14KB (8K x 14) of One-Time Programmable (OTP) program memory and 368 bytes of RAM, operating at up to 4MHz in a 44-pin PLCC (J-Lead) surface-mount package. The part carries the industrial temperature grade (I suffix) and ships in Tape & Reel (T suffix) packaging. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (ROM/Flash/OTP), data RAM, and peripherals onto one silicon die. PIC16C-series MCUs use a Harvard RISC architecture with 35 single-word instructions, simplifying firmware development while delivering deterministic interrupt latency. The PIC16LC67 sits in the broader taxonomy as 8-bit MCU -> microcontroller -> embedded processor -> semiconductor, serving cost-sensitive embedded control roles where 16-bit or 32-bit performance is unnecessary. Key features include three serial communication peripherals (I2C, SPI, and UART/USART), Brown-out Detect/Reset, Power-on Reset (POR), Pulse Width Modulation (PWM) outputs, and a Watchdog Timer (WDT). These on-chip peripherals reduce external component count and BOM cost for embedded designs. The 4MHz maximum clock frequency supports instruction-cycle execution at 1MHz (4:1 oscillator-to-instruction-clock divider), adequate for low-speed control loops, sensor interfacing, and human-machine interface tasks. The PIC16LC67T-04I/L uses CMOS, fully-static design, allowing the clock to be slowed or stopped without losing internal state. Industrial temperature range (-40C to +85C) and 5V operation suit factory automation, instrumentation, and consumer appliances. The 44-PLCC package is socket-compatible with the legacy through-hole 40-pin DIP footprint adapters used in older designs, simplifying field retrofits. Typical applications include industrial control panels, HVAC thermostat controllers, security alarm panels, simple sensor hubs, motor-control PWM drivers, and low-cost consumer devices. The combination of OTP memory (one-time programmable, no in-system reprogrammability) targets high-volume production runs where firmware is finalized before mask/OTP programming. When designing with this part, note that OTP memory cannot be field-updated; design firmware carefully or evaluate the flash-based PIC16F877 equivalent for development. The 44-PLCC package requires a PLCC socket or reflow-compatible land pattern; verify socket tooling if the design is a retrofit. This page synthesizes distributor pricing snapshots, drop-in alternative listings across the PIC16C6x family, and practical design notes not aggregated on any single manufacturer or distributor page.

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PIC16LC67T-04I/PQ

PIC16LC67T-04I/PQ - 14KB OTP 8-bit MCU, 4MHz, 44-MQFP | Microchip

The Microchip Technology PIC16LC67T-04I/PQ is a low-power CMOS 8-bit RISC microcontroller from the PIC16C family, delivering 14KB (8K x 14) of OTP program memory and 368 bytes of data RAM in a 44-pin Metric QFP (MQFP) surface-mount package supplied on Tape & Reel. The core executes 35 single-word instructions at up to 4 MHz, with a RISC architecture that branches in two cycles and all other instructions completing in one cycle, giving an effective throughput near 5 MIPS at the rated clock. The 'LC' suffix indicates the wide-voltage 3.0V to 6.0V operating range with low-power characteristics, and the 'T' suffix indicates Tape & Reel packaging for high-volume SMT assembly. What is a microcontroller? A microcontroller (MCU) is a single-chip computer integrating a CPU core, non-volatile program memory (here One-Time-Programmable EPROM), volatile data memory (RAM), peripherals, and I/O. The PIC16LC67 sits inside the PIC16C sub-family and shares the baseline PIC instruction set with PIC16C6X devices, putting it in the broader hierarchy of 8-bit microcontroller -> embedded controller -> integrated circuit. The architecture's hallmark is deterministic instruction timing and code density - one 14-bit instruction per clock cycle - which simplifies real-time firmware development versus accumulator-based 8-bit cores. Key features include 33 digital I/O lines across five ports (PORTA-PORTE), three timer/counter modules (Timer0, Timer1, Timer2), a 5-channel 8-bit ADC, two PWM modules, and a Watchdog Timer with its own on-chip RC oscillator for reliable operation. Communication peripherals include USART/SCI, SPI, and I2C (Master/Slave) plus a Parallel Slave Port (PSP), making the device suitable for both sensor and host-bus interfacing. On-chip safety features include Brown-Out Detect (BOD), Power-On Reset (POR), and a programmable code-protection scheme that supports partial and full memory lock. Typical applications include industrial control panels, smart instrumentation, sensor hubs with serial reporting, low-power battery-powered metering, and white-goods motor control where the ADC plus PWM combination eliminates external analog/driver ICs. The MQFP-44 footprint gives the same generous ground/power pinout that has been standard across PIC16C6X since the late 1990s, easing PCB reuse for designers migrating between PIC16C6X variants. Designers should treat the OTP memory as truly one-time - any firmware update requires a new device - and budget at least 1 uF of decoupling on VDD with a 0.1 uF ceramic placed within 5 mm of the package. The clock input requires careful routing to avoid coupling noise into the ADC analog channel. This page consolidates distributor pricing, drop-in alternatives, and design considerations not available on the manufacturer landing page.

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PIC16LC67T-04I/PT

PIC16LC67T-04I/PT - 14KB OTP 8-bit MCU, 33 I/O, 4MHz | Microchip

The Microchip Technology PIC16LC67T-04I/PT is an 8-bit CMOS OTP microcontroller from the PIC16C family, offering 14KB (8K x 14) of one-time-programmable program memory and 368 bytes of RAM in a 44-pin TQFP (PT) surface-mount package. It operates at up to 4MHz with an external oscillator, runs across an industrial temperature range (-40C to +85C), and provides 33 digital I/O pins. The LC suffix denotes the low-power CMOS variant intended for 3.0V-6.0V operation. What is an 8-bit microcontroller? An 8-bit microcontroller is a single-chip computer that processes data 8 bits at a time, integrating a CPU, RAM, ROM/Flash/OTP program memory, and peripherals (timers, I/O, ADC, communication) on one die. The PIC16C family hierarchy is: PIC16C -> PIC16LC (low-power CMOS) -> PIC16LC6x (peripherally enhanced subset) -> PIC16LC67 (33 I/O, 14KB program). Microcontrollers sit at the embedded control layer of electronic systems, between sensor/actuator signals and higher-level processors. Key features include fully static design for low-power operation, OTP memory for cost-sensitive volume production, an external oscillator interface, and a wide operating voltage range of 2.5V to 6.0V. The architecture is optimized for deterministic interrupt response, making it suitable for real-time control loops. Industrial-grade temperature rating (-40C to +85C) supports factory-floor and outdoor deployments. The PIC16LC67T-04I/PT uses Microchip's classic PIC mid-range RISC architecture with a 14-bit instruction word and Harvard bus structure. Its 33 I/O pins can be multiplexed with on-chip peripherals such as timers, comparators, and synchronous/asynchronous serial ports. The OTP memory variant (vs. UV-repetition-flash) reduces die cost for high-volume, fixed-code applications where field reprogramming is not required. Typical applications include industrial control panels, appliance motor control, automotive body modules, security alarm panels, and embedded instrumentation. The 33 I/O count supports multi-switch user interfaces and sensor fan-in designs where many digital channels are needed. When designing with this part, note that OTP memory cannot be reprogrammed in-circuit; emulation via the PIC16C67-compatible windowed or flash variants is recommended during development. Decoupling VDD with a 0.1uF ceramic capacitor placed within 5mm of the supply pins is required for stable operation. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes for engineers evaluating the PIC16LC67T-04I/PT against newer PIC16F1xx and dsPIC alternatives.

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PIC16LC71-04/P

PIC16LC71-04/P - 8-bit 4MHz OTP MCU w/ ADC | Microchip | DIP-18

The Microchip Technology PIC16LC71-04/P is an 8-bit CMOS OTP microcontroller in the PIC16C family, running at 4MHz, with 1.75KB (1K x 14) of OTP program memory, 36 bytes of RAM, 13 digital I/O pins and an integrated multi-channel 8-bit Analog-to-Digital converter, all housed in a 18-pin PDIP through-hole package. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (program + data), and peripheral interfaces onto one IC. The PIC16LC71 family belongs to Microchip's mid-range PIC16C architecture, which adds an 8-channel 8-bit ADC to the baseline PIC16C5X/PIC16CXX core. The "LC" prefix denotes the low-power CMOS variant, optimized for battery and energy-conscious designs, and the "71" indicates the A/D-equipped sub-family. Within the broader taxonomy, the device sits at: microcontroller -> 8-bit MCU -> PIC mid-range -> PIC16C71X sub-family -> semiconductor IC. Key features of the PIC16LC71-04/P include 4MHz maximum operating frequency (200ns instruction cycle), 1.75KB of one-time-programmable (OTP) program memory organized as 1K x 14 words, 36 bytes of general-purpose RAM, 13 bi-directional I/O pins, an integrated 4-channel 8-bit ADC with internal reference options, and a 5V operating supply typical of the 16C family. The "04" speed grade specifies the 4MHz fOSC rating, and the "/P" suffix designates the plastic 18-pin PDIP package. The device executes instructions in a single cycle (200ns @ 4MHz) with only 35 single-word instructions. Typical applications include low-cost embedded control, sensor signal conditioning via the on-chip ADC, appliance controllers, simple closed-loop PID/thermostat designs, and battery-powered instruments where the LC variant's lower current draw provides a measurable advantage. The 8-bit ADC and modest RAM/pin count also suit this part for prototyping with hand-written assembly routines. When designing with the PIC16LC71-04/P, ensure the OTP memory limitation is acceptable for your production volume (OTP cannot be re-programmed in-circuit). The integrated ADC requires proper input impedance matching and reference decoupling; consult the manufacturer datasheet typical application circuit for the recommended RC network on the ADC reference pins. This page synthesizes distributor pricing, drop-in alternatives within the same 18-pin PDIP footprint, and practical design notes not found in the manufacturer datasheet alone.

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PIC16LC71-04/SO

PIC16LC71-04/SO - 8-Bit 4MHz OTP MCU 1.75KB | Microchip

The Microchip Technology PIC16LC71-04/SO is an 8-bit RISC CMOS OTP (One-Time-Programmable) microcontroller from the PIC® 16C family, featuring 4 MHz maximum clock speed, 1.75 KB (1K x 14) program memory, 36 bytes of RAM, and 13 I/O pins in an 18-pin SOIC package. It is part of the LC (low-power CMOS) variant designed for 3.0V to 6.0V operation, making it suitable for battery-powered and low-voltage applications. What is a PIC16C71 microcontroller? The PIC16C71 is an early member of Microchip's PIC® 16C mid-range 8-bit microcontroller family, which combined a Harvard-architecture RISC CPU core with on-chip peripherals such as an Analog-to-Digital Converter (ADC). These MCUs sit within the hierarchy: PIC16C71 → PIC16C7x family → PIC® 16C series → 8-bit PIC microcontrollers → microcontrollers (MCU) → integrated circuits → semiconductors. The LC sub-designation denotes a low-power CMOS process variant. Key features of the PIC16LC71-04/SO include a 4-channel 8-bit ADC, 13 digital I/O pins, an 8-bit timer/counter, watchdog timer, and 35 single-word instructions. The Harvard RISC core executes most instructions in a single 200 ns instruction cycle at 4 MHz. Its 14-bit-wide instruction word allows compact code density compared to 12-bit PIC16C5X devices, and the architecture is upward-compatible with the PIC16C5X and PIC12CXXX families. Typical applications include low-power embedded control, sensor signal acquisition, battery-operated instruments, simple motor control, and consumer products requiring on-chip ADC and minimal external components. The 18-pin SOIC footprint is well-suited for through-hole-replacement surface-mount designs where board space is at a premium. Design consideration: the OTP program memory means firmware is mask-set at programming time and cannot be erased or rewritten - choose this part for mature production designs, not prototypes requiring firmware iteration. For development, consider the PIC16C71 JW (windowed EPROM) or a Flash-based PIC16F equivalent. This page synthesizes distributor pricing, pin-compatible drop-in alternatives, and practical design notes that complement, but do not duplicate, the Microchip datasheet.

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PIC16LC71-04I/SO

PIC16LC71-04I/SO - 4MHz 8-Bit OTP MCU 1.75KB | Microchip

The Microchip PIC16LC71-04I/SO is an 8-bit CMOS microcontroller from the PIC16C7X mid-range family, integrating a 4-channel 8-bit analog-to-digital converter, 1.75KB (1K x 14) one-time-programmable (OTP) program memory, 36 bytes of data RAM, and 13 individually-controllable digital I/O pins in an 18-pin SOIC package. Operating from a 2.5V to 5.5V supply and clocked at up to 4MHz, this industrial-temperature (-40C to +85C) variant targets cost-sensitive embedded control with on-chip ADC. A microcontroller (MCU) is a single-chip computer containing a CPU core, program and data memory, I/O peripherals, and timers. The PIC16C7X family is a mid-range architecture from Microchip, built around a RISC Harvard CPU with a 14-bit instruction word. PIC microcontrollers sit within the broader 8-bit MCU category alongside 8051 and AVR, and are widely used in low-cost, low-power applications such as appliance controls, sensor interfaces, and battery-powered instruments where an integrated ADC simplifies analog front-end design. Key features of the PIC16LC71-04I/SO include a Timer0 8-bit timer/counter with 8-bit prescaler, brown-out reset (BOR) circuitry for safe supply-voltage monitoring, a watchdog timer, and an integrated 8-bit multichannel A/D converter that eliminates the need for an external ADC IC. The on-chip oscillator supports various clocking modes including RC and crystal, enabling BOM reduction. The device uses CMOS static design, so it operates over the full 0 to 4MHz clock range across the rated supply voltage. The Harvard bus architecture separates program memory (14-bit wide) from data memory (8-bit wide RAM), accessed via separate buses, which improves throughput compared with von Neumann designs. The OTP program memory is one-time programmable for production units, while windowed CERDIP variants (PIC16C71) support UV-eraseable prototyping. Typical applications include appliance controls, automotive body electronics, sensor signal conditioning with on-chip ADC, low-cost remote controls, and battery-powered instrumentation. The integrated ADC with 13 I/O pins allows a complete sensor interface plus actuator drive within a single 18-pin SOIC, replacing discrete ADC plus logic designs. When designing with this part, allocate sufficient decoupling (100nF plus bulk) close to VDD and VSS, keep ADC analog traces short, and respect the absolute maximum supply of 7V. Program memory is OTP - firmware must be fully verified on windowed (JW) or UV-erasable (PIC16C71) parts before committing to OTP for production. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone - including pin-compatible same-family replacements and parametric guidance for engineering selection.

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PIC16LC710-04/P

PIC16LC710-04/P - 8-Bit 4MHz MCU 896B OTP 18-PDIP | Microchip

The Microchip PIC16LC710-04/P is a member of the PIC16C7X family of low-cost, high-performance CMOS fully-static 8-bit microcontrollers, packaged in an 18-pin PDIP (through-hole) format with 896 bytes of One-Time-Programmable (OTP) program memory organized as 512 x 14 words, 36 bytes of RAM, and 13 general-purpose digital I/O pins. The core executes a reduced RISC instruction set at up to 4 MHz, delivering approximately 200 ns instruction cycle time, and integrates a multi-channel 8-bit analog-to-digital converter (ADC), brown-out reset (BOR) supervision, a Watchdog Timer (WDT) with its own on-chip RC oscillator, and three timer peripherals (Timer0 8-bit, Timer1 16-bit, Timer2 8-bit). An 8-bit microcontroller is a single-chip computer built around an 8-bit data path, a small embedded CPU, on-chip non-volatile program memory (ROM/EPROM/Flash/OTP), volatile data memory (RAM), and a set of integrated peripherals such as timers, ADC, serial interfaces and I/O ports. The PIC16C7X sub-family specifically targets cost-sensitive embedded control applications by combining a Harvard RISC architecture with an integrated ADC and BOR in a small pin-count package. As a member of the broader hierarchy microcontroller -> embedded controller -> semiconductor, the PIC16LC710 occupies the low-pin-count, low-cost segment of the Microchip mid-range lineup. The PIC16LC710-04/P is the low-voltage (LC) variant of the PIC16C710, qualified for 2.5V to 6.0V supply operation, which makes it suitable for battery-powered and 3.3V-only designs where the standard PIC16C710 (4.5V-6.0V) cannot operate. Key features distinguishing this part include the integrated 8-bit ADC (typically 4 channels on the 18-pin package), Power-on Reset, Power-up Timer, and Oscillator Start-up Timer that together allow reliable operation without external reset or power-sequencing components. The 13 I/O pins each have individually programmable direction control, supporting direct LED drive, switch matrix scanning, and simple bus interfaces. Typical applications include low-cost sensor interfaces, battery chargers, small appliance controllers, smoke detectors, PIR motion sensor signal conditioning, LED lighting controllers, and educational/development platforms. The PIC16LC710-04/P is well suited when the application needs a few analog inputs, a small amount of program memory, and 3.3V system compatibility in a breadboard-friendly DIP package. When designing with this MCU, note that OTP memory can be programmed only once, so consider PIC16F710-based Flash equivalents for prototyping and field-updatable production. Use the on-chip BOR to avoid undefined behavior at slow Vdd rise times, and decouple Vdd with a 100 nF ceramic capacitor placed within 5 mm of the supply pin.

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PIC16LC710-04/SS

PIC16LC710-04/SS - 8-bit 4MHz MCU 896B OTP 20-SSOP | Microchip

The Microchip Technology PIC16LC710-04/SS is an 8-bit CMOS RISC microcontroller from the PIC16C7X family, integrating an 8-channel 8-bit analog-to-digital converter, Brown-out Reset (BOR), and a Watchdog Timer in a 20-pin SSOP package. It operates up to 4 MHz from a 2.5 V to 5.5 V supply, delivering 896 bytes (512 × 14) of One-Time-Programmable (OTP) program memory and 36 bytes of RAM with 13 bidirectional I/O pins. What is a PIC microcontroller? A PIC (Peripheral Interface Controller) is an 8-bit RISC microcontroller family from Microchip built on a Harvard architecture with separate program and data buses, enabling single-cycle instruction execution. PIC microcontrollers sit in the hierarchy: microcontroller -> embedded MCU -> CMOS RISC processor -> semiconductor. The PIC16LC71x series specifically targets cost-sensitive analog-sensing applications, integrating an on-chip ADC and timer resources that historically required separate components. Key features include 13 individually direction-controlled I/O pins, an 8-bit Timer0 with 8-bit prescaler, a 16-bit Timer1 with prescaler, an 8-bit Timer2, and a multi-channel 8-bit A/D converter. The PIC16LC710-04/SS supports in-circuit serial programming (ICSP) and operates across the commercial 0°C to +70°C range. Architecturally, the PIC16LC710 uses a 14-bit instruction word with a 2-stage pipeline, achieving 200 ns instruction cycle at 20 MHz. Its integrated ADC eliminates external conversion ICs in low-channel-count designs; combined with BOR and WDT, it reduces BOM cost for white-goods, appliance, and simple sensor-interface products. Typical applications include battery chargers, smart-card readers, security and alarm systems, HVAC damper control, washing-machine user-interface boards, and remote transmitters. The SSOP-20 footprint suits compact, surface-mount consumer and industrial designs. Design consideration: the OTP variant cannot be reprogrammed; for prototypes or field-upgradable firmware, the PIC16F710 (Flash) family is recommended. Ensure MCLR pull-up, decoupling (0.1 µF + 10 µF), and proper ADC acquisition timing per the datasheet. This page synthesizes distributor stock, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC16LC710-04E/SO

PIC16LC710-04E/SO - 4MHz 8-Bit CMOS MCU, 896B OTP, ADC | Microchip

The Microchip Technology PIC16LC710-04E/SO is a member of the PIC16C71X family of low-cost, high-performance, CMOS, fully-static 8-bit microcontrollers with an integrated analog-to-digital converter, housed in an 18-pin SOIC package. It executes instructions in 200 nanoseconds at 4 MHz and features 896 bytes (512 x 14) of one-time-programmable (OTP) program memory, 36 bytes of RAM, and a 4-channel 8-bit ADC. The 'E' suffix denotes the extended commercial temperature grade of -40C to +125C, and the 'LC' prefix indicates the low-voltage 2.5 V to 5.5 V core supply range that suits battery-powered and energy-conscious designs. A PIC (Peripheral Interface Controller) microcontroller is a compact RISC-based MCU class that integrates CPU, non-volatile program memory, RAM, and configurable peripherals onto a single silicon die. PIC MCUs sit at the low-power end of the 8-bit embedded hierarchy - PIC -> 8-bit MCU -> microcontroller -> embedded computing -> semiconductor - and the PIC16 mid-range architecture extends the baseline PIC16C5X instruction set to support interrupts, a hardware stack, and on-chip peripherals such as ADC and timers. Key features include 35 single-word instructions, 13 I/O pins, an 8-bit Timer0 with prescaler, a 16-bit Timer1, a Watchdog Timer with on-chip RC oscillator, power-on reset, brown-out detection, and a programmable code-protection bit. The integrated ADC offers 4 input channels multiplexed onto a single 8-bit successive-approximation converter with hardware acquisition timer, simplifying analog signal acquisition. The PIC16LC710 architecture pairs a Harvard-style RISC CPU with separate instruction and data buses, enabling single-cycle instruction fetch plus decode in parallel with ALU operations. CMOS fabrication keeps quiescent current under 1 mA in active mode and below 1 uA in SLEEP, while the low-voltage LC variant allows operation down to 2.5 V for two-cell battery systems. Typical applications include industrial control with sensor interfaces, battery-powered instruments, simple motor-control loops, appliance controls, automotive body electronics pre-driver stages, and consumer device user-interface controllers. Its small 18-pin footprint suits compact PCB designs where board area is constrained. When designing with this device, the OTP memory means code must be programmed before final assembly and cannot be reprogrammed in the field - choose flash-based PIC16F equivalents for development or in-field updates. Provide a stable VDD with a 100 nF decoupling capacitor adjacent to the pin. This page synthesizes distributor pricing, drop-in package alternatives, and practical design notes that are not available directly from the manufacturer datasheet, helping procurement and design engineers accelerate component selection and BOM qualification.

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PIC16LC710-04E/SS

PIC16LC710-04E/SS - 4MHz 8-bit CMOS MCU w/ ADC, SSOP-20 | Microchip

The Microchip Technology PIC16LC710-04E/SS is a low-cost, high-performance, fully-static, 8-bit CMOS microcontroller belonging to the PIC16C71X mid-range family, integrated with a 4-channel 8-bit analog-to-digital converter and housed in a 20-pin SSOP (Shrink Small Outline Package). It executes instructions at a 4 MHz core clock speed, offers 896 bytes (512 x 14) of One-Time-Programmable (OTP) program memory, and provides 36 bytes of data RAM, all in a tiny surface-mount footprint with 13 usable I/O pins. An 8-bit microcontroller (MCU) is a small, self-contained programmable processor that combines a CPU, non-volatile program memory, volatile data memory, and peripheral interfaces on a single silicon die. The PIC16LC71X family sits in Microchip's mid-range architecture tier, sitting between base-line PIC10/12/16 devices and enhanced PIC17/18 parts, sharing the 14-bit instruction word of the mid-range core. PIC microcontrollers are widely used in embedded control because their Harvard architecture and RISC instruction set deliver deterministic, predictable execution timing with very low power consumption. Key features of the PIC16LC710-04E/SS include a 4 MHz maximum operating frequency, an operating voltage range of 2.5 V to 5.5 V, an integrated 8-bit multi-channel A/D converter (typically 4 channels), brown-out reset (BOR) circuitry, a watchdog timer (WDT), Timer0 (8-bit) and Timer1/Timer2 peripherals, and individual direction control on all I/O pins. The 13 I/O pins support digital I/O plus analog input multiplexing for the on-chip ADC, making the device well-suited for sensor-interface front-ends. The architecture uses a 14-bit-wide instruction word, separate program and data buses (Harvard), and a 2-level hardware stack typical of PIC mid-range devices. Static CMOS logic lets the clock be stopped for true zero-current standby, and brown-out detection protects against unreliable code execution during slow VDD ramp or brown-out events. Typical applications include battery-powered sensor nodes, simple motor/relay control, white-goods user interfaces, automotive body electronics, and consumer appliances. Its integrated ADC, low supply voltage range, and small SSOP-20 footprint make it especially attractive when PCB area, BOM cost, and analog sensing all matter simultaneously. When designing with this part, pay attention to the OTP program memory constraint: code must be verified before committing, since OTP cannot be erased. Designers typically develop firmware on windowed (JW) or UV-erasable (PE) siblings before moving to OTP for production. This page synthesizes verified distributor pricing, same-package drop-in alternatives within the PIC16LC71X family, and practical design notes not found in the original manufacturer datasheet.

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PIC16LC710T-04/SO

PIC16LC710T-04/SO - 4MHz 8-bit OTP MCU, 13 I/O | Microchip

The Microchip Technology PIC16LC710T-04/SO is an 8-bit RISC microcontroller from the PIC16C71X family, offering 4MHz maximum clock speed with 896 bytes of One-Time Programmable (OTP) program memory organized as 512 x 14 bits, and 36 bytes of data RAM, all housed in a tape-and-reel 18-pin SOIC package. The part suffix "LC" denotes a low-voltage, low-power CMOS process and the "/SO" suffix indicates a 0.300-inch wide Small-Outline IC (SOIC-18) surface-mount package supplied on tape and reel. The device is one of several temperature-grade and operating-voltage siblings in the PIC16LC710 family, sitting between the commercial PIC16LC710-04/SO and the industrial PIC16LC710T-04I/SO and the extended PIC16LC710T-04E/SO. An 8-bit PIC microcontroller (MCU) is a low-cost, Harvard-architecture CMOS processor that combines a CPU core, non-volatile program memory (ROM/EPROM/OTP/Flash), a small register file, and integrated peripherals such as timers, A/D converters and PWM modules on a single die. PIC microcontrollers sit within the broader taxonomy of microcontrollers -> embedded microprocessors -> digital ICs -> integrated circuits. They are widely used in cost-sensitive, deterministic control applications because the small instruction set and predictable instruction cycle timing make real-time control straightforward. Key differentiating features of the PIC16LC710T-04/SO include 13 general-purpose digital I/O pins, an on-chip 8-bit Analog-to-Digital converter with 4 input channels, one 8-bit Timer0 with 8-bit prescaler, one 16-bit Timer1 with prescaler that can be clocked during sleep via an external crystal/clock, an 8-bit Timer2, and a Pulse-Width-Modulation (PWM) module. Brown-out Detect/Reset, Power-on Reset, and a Watchdog Timer with its own on-chip RC oscillator round out the safety features that make the part suitable for entry-level signal-conditioning, sensor-interface, and motor-control applications. The CMOS process supports a wide operating voltage range and very low quiescent current, which is essential for battery-powered instruments. Architecturally, the device uses a 14-bit instruction word with a single accumulator (W) and a 36-byte general-purpose register file. The 4MHz oscillator drives a four-phase internal clock so each instruction executes in 200ns (five million instructions per second at 20MHz, but in this LC part the maximum is 4MHz, giving one instruction per 1 microsecond). Peripherals are accessed via a memory-mapped Special Function Register (SFR) set; the A/D converter is an 8-bit successive-approximation type with four multiplexed input channels, suitable for slow signals such as thermistors, light sensors, and potentiometer feedback. Typical applications include low-cost consumer sensor interfaces, battery-powered measurement instruments, white-goods and appliance control boards, automotive body and chassis sub-systems (subject to temperature grade), industrial sensor transmitters, and hobby/educational microcontroller development. The combination of integrated A/D and PWM in a compact 18-pin package makes the PIC16LC710T-04/SO especially well suited to closed-loop analog control loops such as LED dimmers, fan-speed controllers and simple motor drives. When designing with this part, note that the OTP program memory cannot be erased or rewritten, so the firmware image must be fully validated before commitment. The /SO suffix indicates tape-and-reel packaging and is therefore aimed at automated SMT lines; if a single-piece engineering sample or a windowed CERDIP for code iteration is preferred, look for the PIC16LC710-04/P (PDIP) or PIC16LC710-04/JW (windowed CERDIP) variants instead. This page synthesizes the distributor listing summary, cross-references to pin-compatible PIC16LC710 family members and functional drop-ins, and practical design notes that go beyond what is printed in the Microchip datasheet.

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PIC16LC710T-04/SS

PIC16LC710T-04/SS - 4MHz 8-bit OTP MCU, 13 I/O, 20-SSOP | Microchip

The Microchip PIC16LC710T-04/SS is a member of the PIC16C71X family of low-cost, high-performance, CMOS, fully-static, 8-bit microcontrollers with an integrated 8-bit Analog-to-Digital (A/D) converter, packaged in a 20-pin SSOP and qualified to operate up to 4 MHz from a 2.5 V to 5.5 V supply. It provides 896 bytes of One-Time Programmable (OTP) program memory organized as 512 x 14-bit words, 36 bytes of data RAM, and 13 general-purpose digital I/O pins, while the on-chip A/D converter delivers up to 4 channels of 8-bit resolution for entry-level mixed-signal designs. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, working RAM, and digital and analog peripherals on one die. The PIC16LC710T-04/SS belongs to the broader category of embedded controllers -> microcontrollers (MCU) -> 8-bit MCU -> PIC mid-range core, where the LC suffix indicates the low-voltage CMOS process and the OTP memory class is field-programmable but not re-programmable, making the part well suited to low-to-mid volume production. Key features include 4 MHz maximum operating frequency, 4 channels of 8-bit A/D with multiplexer, one 8-bit Timer0 with prescaler, one 16-bit Timer1 with prescaler that can be clocked during Sleep, an 8-bit Timer2, a Pulse-Width Modulation (PWM) module, a Watchdog Timer with its own on-chip RC oscillator, Brown-out Reset (BOR), and an internal/external interrupt structure. The 20-pin SSOP (5.30 mm body) package is a shrink-SOIC variant optimized for surface-mount density. Architecturally, the PIC16LC710T-04/SS uses the Microchip mid-range 14-bit instruction set with a 200 ns instruction cycle at 4 MHz, an 8-level hardware stack, and direct, indirect, and relative addressing. The Harvard-style split program/data bus allows simultaneous fetch and access, which improves deterministic throughput for real-time control loops. Typical applications include appliance control, sensor signal conditioning with on-chip A/D, low-cost motor control via PWM, battery-powered instrumentation, and consumer white goods. It is also widely used in industrial 24 V/5 V bridging nodes and in educational/prototyping platforms where OTP cost advantages outweigh in-circuit reprogrammability. When designing with this part, plan the A/D acquisition time versus the oscillator frequency and place a local 0.1 µF decoupling capacitor adjacent to VDD. Note that this -04 speed grade is rated to 4 MHz; designers needing higher throughput should evaluate the -20 (20 MHz) variant or migrate to a flash-based PIC16F equivalent.

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PIC16LC710T-04E/SS

PIC16LC710T-04E/SS - 8-bit 4MHz MCU, 896B EPROM, 20-SSOP | Microchip

The Microchip Technology PIC16LC710T-04E/SS is an 8-bit PIC16C-family CMOS microcontroller integrating an 896-byte One-Time-Programmable (OTP) program memory and 36 bytes of data RAM in a 20-pin SSOP package. The device executes instructions at a 4 MHz clock rate with a 200 ns instruction cycle, runs from a 2.5 V to 6.0 V supply, and operates across the extended industrial temperature range of -40 °C to +125 °C. The "T" suffix indicates tape-and-reel packaging, "04" denotes the 4 MHz speed grade, and "E" designates the extended temperature window. It belongs to Microchip's PIC16C71x mid-range family and features an on-chip 8-bit Analog-to-Digital Converter. What is a microcontroller? A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (here OTP EPROM), working RAM, and peripheral blocks such as timers, communication ports, and ADCs. Within the broader taxonomy, the PIC16LC710 sits under 8-bit MCU -> mid-range MCU -> PIC16 family -> CMOS OTP microcontroller. Its on-chip ADC, low-power CMOS design, and Harvard RISC architecture made it a workhorse for embedded control in the late 1990s and remain reference designs for cost-sensitive analog monitoring today. Key features of the PIC16LC710T-04E/SS include four 8-bit A/D converter channels with 8-bit resolution, two 8-bit timers plus one 16-bit timer with prescaler and external crystal/clock increments during sleep, a 13-bit instruction word, a watchdog timer, and power-on reset. The 20-SSOP package (5.30 mm body width, 0.65 mm pitch) is footprint-compatible with the rest of the PIC16C71x family and is supplied on tape-and-reel for high-volume surface-mount assembly. The PIC16LC710T-04E/SS is pin-to-pin compatible with the PIC16LC711 and PIC16C71x OTP/EPROM siblings, allowing designers to migrate code across speed grades, memory densities, and temperature grades. Although the EPROM-based "LC" variant has been superseded in new designs by flash-based PIC16F1xxx devices, it remains in active distribution for industrial automation, consumer electronics, and automotive aftermarket applications where extended-temperature silicon is mandatory and code is finalized. Typical applications include battery chargers, sensor signal conditioning, HVAC control, automotive body electronics, and industrial automation. For new designs, the pin-compatible PIC16F690 family offers flash memory, more peripherals, and lower cost. The "E" temperature grade allows deployment in under-hood automotive, outdoor industrial, and white-goods environments. When designing with this part, ensure the supply rail stays within 2.5 V-6.0 V and the oscillator configuration matches the chosen speed grade. The MCLR/VPP pin must be correctly biased for normal operation versus in-system programming. For new designs prefer PIC16F1xxx flash parts unless EPROM stability is required. This page synthesizes distributor pricing from four channels, drop-in alternatives from the same PIC16C71x family, and practical design notes not found in the original 1997 datasheet.

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PIC16LC710T-04I/SS

PIC16LC710T-04I/SS - 8-Bit 4MHz OTP MCU, 896B, 4xADC, SSOP-20

The Microchip Technology PIC16LC710T-04I/SS is a low-cost, high-performance CMOS, fully-static 8-bit microcontroller from the PIC16CXX mid-range family, housed in a 20-pin SSOP package and supplied on Tape & Reel. It features 896 bytes (512 x 14) of One-Time Programmable (OTP) program memory, 36 bytes of RAM, 13 general-purpose I/O pins, and 4 channels of 8-bit Analog-to-Digital converter. The part executes instructions in 200 ns and operates at a maximum clock rate of 4 MHz across an industrial temperature range of -40C to +85C. A PIC16C71X-family microcontroller belongs to the PIC16CXX mid-range architecture, a category of 8-bit Harvard-architecture RISC microcontrollers originally introduced by Microchip in the 1990s. Within the broader hierarchy, it sits at: PIC16C71X -> PIC16CXX -> 8-bit PIC microcontroller -> RISC microcontroller -> embedded MCU. Mid-range PIC devices use a 14-bit instruction word with 35 single-word instructions, dual 8-bit file registers for fast context switching, and integrated analog peripherals. This category bridges the older PIC16C5X baseline family and the later PIC18 enhanced family. Key features include an integrated 8-bit ADC with 4 input channels, three timer modules (Timer0 8-bit, Timer1 16-bit with sleep-mode external clock, Timer2 8-bit), a Capture/Compare/PWM (CCP) module, a Watchdog Timer with its own on-chip RC oscillator, and Brown-out Reset. The OTP program memory allows factory or user programming via Microchip's standard device programmers, while 36 bytes of data RAM support limited but adequate buffering for embedded control loops. The architecture is fully static, meaning the clock can be stopped without losing register state, enabling low-power sleep/idle modes. The device supports crystal, resonator, and external RC oscillator modes for system clocking. The 20-SSOP package footprint (0.209 inch / 5.30 mm body width) makes this variant suitable for space-constrained surface-mount designs. Typical applications include entry-level analog signal acquisition (sensor front-ends, battery monitoring, simple instrumentation), consumer appliance control, low-cost industrial automation modules, and embedded control subsystems where 8-bit processing and 4-channel ADC integration are sufficient. The integrated ADC eliminates an external converter, reducing BOM cost. When designing with this MCU, account for the OTP memory limitation: firmware must be fully validated before programming. Use Microchip's MPLAB development environment and a compatible programmer (e.g., PICkit) for code development. The -04 speed grade denotes a 4 MHz maximum oscillator. This page synthesizes distributor pricing (as of 2026-09-22), drop-in alternatives from the PIC16LC71X family, and practical design notes not aggregated in the manufacturer datasheet alone.

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PIC16LC711-04/P

PIC16LC711-04/P - 4MHz 8-Bit CMOS MCU 1.75KB OTP 18-PDIP

The Microchip Technology PIC16LC711-04/P is a low-power, CMOS, fully-static 8-bit PIC microcontroller belonging to the PIC16C71X mid-range family, packaged in a 18-pin PDIP (300 mil, 7.62 mm) through-hole form factor. It integrates 1.75 KB (1K x 14) of One-Time-Programmable (OTP) program memory, 68 bytes of data RAM, and a 4-channel 8-bit analog-to-digital converter, and operates from a 2.5 V to 6.0 V supply with a 4 MHz external oscillator input. The "LC" prefix denotes the extended low-voltage/low-power variant, and the "-04" speed grade specifies the maximum 4 MHz oscillator frequency at this voltage class. A PIC (Peripheral Interface Controller) microcontroller is a Harvard-architecture RISC device that separates program and data memory paths to allow simultaneous instruction fetch and operand access, increasing throughput relative to von Neumann CISC devices. The PIC16C71X family is positioned in Microchip's mid-range tier, offering 14-bit instruction words, a 35-instruction opcode set, an 8-level hardware stack, and integrated ADC peripherals - the PIC16LC711 specifically targets battery-powered and low-voltage commercial applications where the standard PIC16C711's 4.5-6.0 V range is too restrictive. Key features include 13 digital I/O pins, 4 analog input channels multiplexed to an 8-bit successive-approximation ADC with 25 us conversion time, power-on reset, watchdog timer with on-chip RC oscillator, power-saving SLEEP mode, and in-circuit serial programming (ICSP) capability via RB6/RB7. The LC variant's wider 2.5 V minimum operating voltage enables direct connection to 3.3 V logic rails without level shifting, while its lower quiescent current extends battery life in sleep-dominant duty cycles. The 18-pin PDIP package is the most user-friendly form factor for prototype, hobby, education, and legacy through-hole PCB designs. Typical applications include battery-powered sensor nodes, low-cost consumer white goods, educational trainer boards, automotive interior accessories (non-safety), industrial control panels with analog front-ends, and legacy embedded system retrofits. The 8-bit ADC simplifies designs that require analog sensing without adding a dedicated ADC IC. Designers should note that the OTP variant cannot be reprogrammed in-circuit - the windowed UV-erasable PIC16LW711 is the development counterpart. When migrating designs, the 18-pin PDIP footprint is shared across the PIC16C710, PIC16C71, PIC16C711, PIC16C715 and PIC16LC family members. Design considerations: ensure the oscillator start-up time is observed at power-on, especially with low-frequency crystals. Place a 0.1 uF decoupling capacitor within 5 mm of VDD, and reserve pin RB0/INT for an external interrupt source if wake-on-event functionality is required. The device is rated for commercial (0C to +70C) operating temperature; for industrial or automotive temperature grades, the PIC16LC711-04I variant is required. This page synthesizes distributor stock and pricing as of 2026-09-22, drop-in alternative parts in the 18-pin PDIP footprint, and practical design notes beyond what the manufacturer datasheet alone provides. Internal references throughout this page cross-link other Microchip PIC16LC series devices for migration paths.

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PIC16LC711-04/SO

PIC16LC711-04/SO - 8-bit 4MHz OTP MCU with ADC | Microchip

The Microchip Technology PIC16LC711-04/SO is an 8-bit CMOS RISC microcontroller from the PIC16C71X family, running at up to 4 MHz and packaged in a commercial-grade 18-pin SOIC (SO) form factor. It integrates 1.75 KB (1K x 14) of One-Time-Programmable (OTP) program memory and 68 bytes of RAM, with 13 general-purpose digital I/O pins. The device is built on a fully-static CMOS process and provides an on-chip 8-bit analog-to-digital converter. An 8-bit microcontroller (MCU) is a single-chip processor that executes instructions on 8-bit data paths and is widely used in embedded control applications where deterministic timing and low power are critical. MCUs sit within the broader category of microcontrollers -> embedded processors -> digital ICs -> semiconductors, and the PIC16C7XX family occupies a long-standing position in cost-sensitive industrial and consumer designs. The PIC16LC711 adds an integrated analog-to-digital converter, placing it within the ADC-equipped PIC mid-range tier. Key features include 4 MHz maximum clock, 35 single-word instructions, 200 ns instruction cycle, 8-bit successive-approximation ADC with up to 4 input channels, 68 bytes RAM, four interrupt sources, and an 8-bit watchdog timer. The OTP program memory allows one-time field programming, which is well suited to low- and medium-volume production. The 18-SOIC surface-mount package supports automated assembly and standard reflow soldering. The PIC16LC711 uses a Harvard-architecture RISC core with a 14-bit instruction word and separate program/data buses, allowing instruction fetch and operand access in a single cycle. The ADC subsystem includes a sample-and-hold and selectable acquisition timing, while an on-chip RC oscillator option reduces external component count. The architecture emphasizes deterministic interrupt response, making the part suitable for closed-loop control where predictable timing is required. Typical applications include appliance control, sensor signal conditioning, simple motor control loops, low-cost data acquisition modules, and educational/development platforms. It is also widely used as a pin-compatible substitute within the PIC16C71X family for designs requiring ADC + small package + commercial temperature grade. When designing with the PIC16LC711-04/SO, note that the OTP memory cannot be reprogrammed in-circuit; use a windowed (JW) variant for prototyping and the OTP for production. Adequate decoupling (100 nF + 10 uF) near VDD is essential because the analog reference is sensitive to supply noise, which directly impacts ADC accuracy. This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes that are not aggregated in a single place on the manufacturer datasheet.

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PIC16LC711-04E/P

PIC16LC711-04E/P - 4MHz 8-Bit MCU w/ ADC, 1.75KB EPROM | Microchip

The Microchip PIC16LC711-04E/P is an 8-bit CMOS RISC microcontroller from the PIC16C7X mid-range family, featuring an integrated 8-bit multichannel analog-to-digital converter, 1.75 KB of EPROM program memory (1024 x 14), 68 bytes of RAM, and 13 bidirectional I/O pins. The device is housed in a 18-pin PDIP (Plastic DIP) through-hole package and operates from a 2.5 V to 5.5 V supply. Its instruction cycle derives from a 4 MHz external oscillator input, yielding a 1 MHz instruction execution rate. The PIC16LC711-04E/P carries the automotive temperature grade designation and is supplied in tube packaging. An 8-bit microcontroller (MCU) is a small computer-on-a-chip integrating a CPU, program memory, data memory, and peripherals into a single IC. The PIC mid-range family uses a Harvard RISC architecture with a 14-bit instruction word, optimized for deterministic real-time control and low power consumption. PIC microcontrollers sit within the broader hierarchy of microcontrollers -> embedded processors -> semiconductors -> integrated circuits, and are widely used in cost-sensitive control applications. The integrated ADC removes the need for an external converter, simplifying PCB design. Key features of the PIC16LC711-04E/P include an 8-channel 8-bit ADC with successive approximation conversion, three timers (Timer0 with 8-bit prescaler, Timer1 16-bit with prescaler, Timer2 8-bit), brown-out detection and reset (BOR) for safe supply-voltage monitoring, a watchdog timer, and 13 individually direction-controlled I/O pins. Program memory is one-time programmable EPROM (OTP-EPROM) accessed as 1024 words x 14 bits. The part supports in-circuit serial programming via Microchip ICSP and is qualified to automotive temperature grades. The architecture is built on a 14-bit RISC core with 35 single-word single-cycle instructions and an 8-level deep hardware stack. Direct, indirect, and relative addressing modes are supported, and the device offers up to 2K x 14 program words. Reset sources include power-on reset, brown-out reset, and watchdog timer reset, enabling reliable recovery from fault conditions. The integrated analog input multiplexer supports up to four input channels (RA0-RA3), each with software-selectable digital I/O capability, simplifying mixed-signal front-end design. Typical applications include automotive body and chassis electronics, industrial process control, sensor signal conditioning, low-power remote-control transmitters, consumer appliance controllers, and legacy industrial automation where a small, deterministic control loop with embedded analog sensing is required. The integrated 8-bit ADC enables direct interface with potentiometers, thermistors, and low-bandwidth analog transducers. Designers should note that this is an OTP-EPROM (one-time programmable) variant, so code is committed permanently; windowed CERDIP versions exist for development/development cycles. Brown-out reset must be enabled in the configuration word for reliable operation in noisy automotive electrical environments. For new designs, consider PIC16F1xxx flash-based families, which offer in-circuit reprogrammability at similar cost. This page synthesizes distributor pricing, drop-in alternative candidates, and practical engineering notes not consolidated in the manufacturer datasheet.

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PIC16LC67-04I/PT - 8-bit MCU, 14KB OTP, 4MHz, 44-TQFP | Microchip

PIC16LC67T-04/PQ - 4MHz 8-Bit MCU 14KB OTP 44-MQFP | Microchip

PIC16LC67T-04I/L - 8-Bit 4MHz MCU, 14KB OTP, 44-PLCC | Microchip

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PIC16LC71-04I/SO - 4MHz 8-Bit OTP MCU 1.75KB | Microchip

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PIC16LC710-04/SS - 8-bit 4MHz MCU 896B OTP 20-SSOP | Microchip

PIC16LC710-04E/SO - 4MHz 8-Bit CMOS MCU, 896B OTP, ADC | Microchip

PIC16LC710-04E/SS - 4MHz 8-bit CMOS MCU w/ ADC, SSOP-20 | Microchip

PIC16LC710T-04/SO - 4MHz 8-bit OTP MCU, 13 I/O | Microchip

PIC16LC710T-04/SS - 4MHz 8-bit OTP MCU, 13 I/O, 20-SSOP | Microchip

PIC16LC710T-04E/SS - 8-bit 4MHz MCU, 896B EPROM, 20-SSOP | Microchip

PIC16LC710T-04I/SS - 8-Bit 4MHz OTP MCU, 896B, 4xADC, SSOP-20

PIC16LC711-04/P - 4MHz 8-Bit CMOS MCU 1.75KB OTP 18-PDIP

PIC16LC711-04/SO - 8-bit 4MHz OTP MCU with ADC | Microchip

PIC16LC711-04E/P - 4MHz 8-Bit MCU w/ ADC, 1.75KB EPROM | Microchip