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PIC16LC774-I/PT

PIC16LC774-I/PT - 8-Bit 20MHz OTP MCU 7KB 33 I/O | Microchip

The Microchip Technology PIC16LC774-I/PT is a member of the PIC16C microcontroller family, an 8-bit RISC OTP MCU with 7KB (4K x 14) of one-time-programmable program memory, 256 bytes of RAM, 33 digital I/O lines, and a maximum clock speed of 20 MHz, housed in a 44-pin TQFP (10x10 mm) surface-mount package. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, non-volatile program memory, peripherals, and I/O on a single silicon die. The PIC16C/PIC16LC family uses Microchip's high-performance RISC core with 35 single-word instructions, where all instructions execute in a single cycle except program branches, which take two cycles. Within the broader taxonomy, the PIC16LC774 belongs to: microcontroller -> 8-bit MCU -> RISC MCU -> embedded controller -> semiconductor IC. The PIC16LC 'LC' suffix indicates a low-voltage CMOS variant supporting operation from 2.5 V to 5.5 V, while the 'C' letter denotes the OTP/EPROM-based program memory family. Key features include 4K x 14 words of OTP program memory (7 KB), 256 bytes of data RAM, 33 I/O pins supporting peripheral functions, an external oscillator interface, an instruction set of 35 single-word instructions, and a brown-out-reset / power-on-reset subsystem. The PIC16LC774 integrates on-chip peripherals such as a 10-bit ADC, capture/compare/PWM modules, a synchronous/asynchronous serial port (USART), and a parallel slave port. The 44-pin TQFP package provides 33 usable I/O pins while exposing power, ground, oscillator, and programming/reset pins. Architecturally, the device uses a Harvard architecture with separate program and data buses, allowing instruction fetch and data access to occur in the same cycle. The OTP memory requires UV-erase and re-programming on a windowed package variant for development; the /PT suffix marks a non-windowed TQFP intended for production. The 20 MHz clock yields a 200 ns instruction cycle time. The PIC16LC774 is part of the PIC16C7x mid-range lineage and shares peripheral register layouts with related PIC16C77/76/74A parts. Typical applications include industrial control systems, sensor signal acquisition with on-board ADC, motor control with PWM-driven H-bridges, embedded user-interface controllers, low-power remote data loggers, and legacy upgrade designs where a 5V-tolerant MCU with abundant I/O is needed. The 33 I/O lines provide ample headroom for keypads, character LCDs, and parallel buses. When designing with this device, ensure the supply rail stays within 2.5 V to 5.5 V for full-speed operation and that decoupling capacitors of 100 nF plus 10 uF are placed close to VDD/VSS pairs. Because the program memory is OTP, code updates after deployment are not possible without a physical part swap, so the PIC16F flash equivalent (PIC16F877) is typically preferred for new designs requiring in-field firmware updates. This page synthesizes distributor pricing, drop-in PIC16C-family alternatives, and practical design notes for engineers evaluating the PIC16LC774-I/PT for new or sustaining designs.

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PIC16LC774/L

PIC16LC774/L - 8-Bit 20MHz 7KB OTP MCU 44-PLCC | Microchip

The Microchip Technology PIC16LC774/L is an 8-bit CMOS RISC microcontroller from the PIC16C family, integrating a 12-bit A/D converter, 7KB (4K x 14) of One-Time-Programmable (OTP) program memory, 256 bytes of RAM, and 33 digital I/O pins in a 44-pin PLCC (J-Lead) package measuring 16.59 x 16.59 mm. Operating at up to 20 MHz with a 200 ns instruction cycle, this MCU targets high-performance embedded applications requiring precision analog acquisition alongside general-purpose digital control. The /L suffix denotes the commercial 0C to +70C operating temperature range. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, executing one byte per instruction cycle. The PIC architecture is a Harvard RISC design with separate program and data buses, only 35 single-word instructions, and most instructions completing in one instruction cycle. PIC16C-series MCUs sit in the product hierarchy as: MCU -> 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. PIC16LC774 specifically adds a 12-bit ADC, making it suitable for instrumentation-grade analog sensing. Key features include 12-bit A/D conversion (vs. the typical 8- or 10-bit on competing MCUs of the era), 256 bytes of data RAM, 33 I/O pins (one of the highest pin counts in the PIC16 family), and OTP program memory allowing one-time field programming. The device supports in-circuit serial programming (ICSP) and is supported by the MPLAB development environment. Typical applications include industrial process control, instrumentation with analog sensor inputs, motor control, and consumer embedded products. The high I/O count and 12-bit ADC differentiate this part from lower-pin PIC16 variants. When designing with PIC16LC774/L, ensure proper decoupling (0.1uF ceramic near each VDD pin) and verify ADC acquisition timing for high-impedance sources. Use the /L grade only in commercial-temperature environments; choose /I for industrial (-40C to +85C) and /E for extended (-40C to +125C) ranges. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC16LC774/P

PIC16LC774/P - 8-Bit MCU, 7KB OTP, 20MHz, 40-DIP | Microchip

The Microchip Technology PIC16LC774/P is an 8-bit RISC microcontroller with 7KB OTP program memory (4K x 14), 256 bytes of RAM, and 33 digital I/O pins, housed in a 40-pin PDIP (0.600", 15.24mm) through-hole package. It operates from a 5V supply at up to 20 MHz, targeting commercial 0C to +70C environments and is engineered as a low-power member of the PIC16C-series family. A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory (ROM/Flash/OTP), working memory (RAM), and I/O peripherals. The PIC16LC774 belongs to the PIC16 family of 8-bit Harvard-architecture MCUs from Microchip, a category characterized by RISC instruction sets, OTP or Flash program memory, and integrated peripherals such as timers, ADC, and USART. Within the broader taxonomy, the PIC16LC774 sits under 8-bit microcontroller -> microcontroller -> embedded processor -> semiconductor IC. Designers choose PIC16 devices for deterministic interrupt latency, mature toolchains (MPLAB X, XC8), and pin-compatibility across family members, simplifying board reuse when migrating between code-density or peripheral options. Key features of the PIC16LC774/P include 7KB OTP program memory with 4K x 14 organization, 256 bytes of data RAM, 33 I/O pins, and a maximum clock frequency of 20 MHz at 5V. The part is rated for the commercial 0C to +70C temperature range and is supplied in a 40-pin PDIP through-hole package (suffix /P). It integrates a RISC core, multiple timers, an analog comparator, and serial peripherals typical of the PIC16 mid-range family, allowing it to drive a wide variety of control loops without external logic. The architecture is based on the Microchip PIC16C-series mid-range core, an enhanced Harvard design with separate program and data buses. OTP (One-Time Programmable) memory enables low-cost prototyping and small-to-medium production runs where in-field firmware updates are not required. Compared with Flash-based siblings, OTP variants offer tighter security against bit-stream extraction but cannot be re-programmed, so designers should plan for programming at the board-level or via a device programmer before final assembly. Typical applications include industrial control panels, white-goods appliances, hobby and educational development kits, embedded instrumentation, and legacy system retrofits where 8-bit deterministic behavior and through-hole assembly are preferred. The 33 I/O count is sufficient to drive keypad scans, multiplexed displays, and small sensor arrays. Designers should verify that the OTP programming step is incorporated into the production flow, since OTP parts cannot be field-updated. For new designs where firmware iteration is anticipated, consider the Flash-based PIC16F-series siblings as drop-in migration options. Decoupling VDD/VSS with 100 nF ceramic capacitors placed within 5 mm of the package pins, and adding a bulk 10 uF electrolytic on the supply rail, is recommended for reliable brown-out behavior. This page synthesizes distributor pricing, drop-in alternative listings, and practical design notes that are not co-located in the manufacturer datasheet, providing engineers a single source for sourcing decisions, replacement planning, and lifecycle management.

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PIC16LC774/PQ

PIC16LC774/PQ - 8-bit MCU, 7KB OTP, 33 I/O, 20MHz | Microchip

The Microchip Technology PIC16LC774/PQ is a 20 MHz 8-bit CMOS RISC microcontroller featuring 7KB (4K x 14) of One-Time Programmable (OTP) program memory, 256 bytes of RAM, and 33 digital I/O lines, all housed in a 44-pin Metric Quad Flat Pack (MQFP, 10x10 mm) package. It belongs to the PIC16C/LC family and operates from a 2.5V to 5.5V supply, delivering up to 20 MHz CPU clock from an external oscillator. The part integrates a 10-bit ADC, USART, I2C/SPI, two capture/compare/PWM modules, and a programmable 8-bit prescaler, suiting it for mixed-signal embedded designs. An 8-bit PIC microcontroller is a Harvard-architecture RISC device that executes one instruction per clock cycle (except branches) and uses separate program and data buses. PIC microcontrollers are positioned within the broader semiconductor hierarchy as a sub-class of microcontrollers -> embedded processors -> integrated circuits. The PIC16C/LC mid-range family targets cost-sensitive industrial and consumer applications requiring deterministic real-time control with on-chip analog peripherals. The PIC16LC77x sub-family specifically emphasizes larger I/O counts (up to 33 pins) and analog integration, distinguishing it from lower-pin PIC16C7x predecessors. Key features include 7KB of OTP program memory, 256 bytes of data RAM, 33 I/O pins with individually programmable direction, an 8-channel 10-bit ADC with sample-and-hold, synchronous/asynchronous USART, MSSP for SPI/I2C, two CCP modules for timing and PWM, and a watchdog timer with on-chip RC oscillator. The MQFP-44 package gives designers a manageable 10x10 mm footprint with gull-wing leads suitable for both reflow soldering and through-hole rework, satisfying industrial-grade PCB thermal needs. Architecturally, the PIC16LC774 uses a 14-bit instruction word and an 8-bit data path, with hardware stack, 8-level deep, and an interrupt controller supporting up to 14 sources. The LC designation indicates the lower-voltage CMOS process that draws less quiescent current than the PIC16C774 OTP/EPROM equivalent, making the LC variant preferable for battery-powered or thermally constrained designs. Typical applications include industrial control panels, sensor signal conditioning front-ends, motor control drivers, instrumentation front-ends, and consumer appliances. The 33 I/O count and 10-bit ADC make it a strong fit for distributed I/O nodes and small motor drive controllers. When designing with this part, note that the OTP variant cannot be reprogrammed, so verify firmware with UV/EPROM-equipped PIC16C774 samples before committing to production volumes. Adequate decoupling (100 nF + 10 uF bulk) near VDD/AVDD pins is critical for ADC accuracy. This page synthesizes real-time distributor pricing, pin-compatible alternatives, and engineering design notes not found in the standalone datasheet, supplying decision support for sourcing and PCB reuse planning.

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PIC16LC774/PT

PIC16LC774/PT - 8-bit MCU, 7KB OTP, 20MHz, 44-TQFP | Microchip

The Microchip PIC16LC774/PT is an 8-bit RISC microcontroller in the PIC16C family, featuring 7KB (4K x 14) of One-Time-Programmable (OTP) program memory, 256 bytes of RAM, and 33 digital I/O pins. It executes instructions at a 20 MHz clock rate from a 5 V supply, packaged in a 44-pin TQFP (10 x 10 mm) surface-mount format. The 'LC' suffix denotes the low-power CMOS process variant of the PIC16C77 lineage, optimized for lower quiescent current while retaining the classic 14-bit instruction word architecture. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, and peripheral interfaces onto one silicon die. Microcontrollers belong to the broader category of embedded processors, sitting alongside microprocessors (MPUs), DSPs, and SoCs; PIC microcontrollers occupy the 8-bit RISC niche, where deterministic instruction timing and minimal external component count are favored over raw compute throughput. The '16' in PIC16LC774 denotes the mid-range PIC family that uses a 14-bit instruction word, providing 35 single-word instructions and predictable single-cycle execution (branches take two cycles). Key specifications include 7KB OTP program memory organized as 4K x 14 bits, 256 x 8 bytes of data RAM, four 8-bit I/O ports (PORTA-PORTE partial) yielding 33 usable I/O, a hardware USART, a 10-bit ADC (typically 8 channels on this die), and two Capture/Compare/PWM modules. The OTP memory is one-time programmable, meaning code is locked at production programming time and cannot be field-updated — a key selection criterion versus flash-based PIC16F variants. Architecturally, the device uses a Harvard architecture with separate program and data buses, enabling simultaneous instruction fetch and operand access. The 20 MHz oscillator drives an internal four-phase clock, and most instructions complete in one oscillator period (200 ns at 20 MHz), with branches taking two periods. The CMOS 'LC' process reduces active and standby draw compared to the original PIC16C77, which made this part attractive for battery-influenced designs. Typical applications include industrial control and instrumentation, automotive body and chassis subsystems, appliance control boards, sensor interface front-ends, and general-purpose embedded logic replacement. The 33 I/O pins comfortably drive LED arrays, keypads, character LCDs, and simple actuator bridges. The wide operating temperature range also supports outdoor and harsh-environment deployments. When laying out, allocate a continuous ground pour beneath the device and route the MCLR reset line away from switching nodes to avoid spurious resets. Place the oscillator crystal within 5 mm of OSC1/OSC2 with a grounded guard ring to suppress EMC pickup. Bulk decoupling of 10 uF plus 0.1 uF ceramic at VDD is recommended per Microchip mid-range reference designs. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone — including a parametric comparison table against other 44-TQFP PIC16 family members and same-package drop-in replacements.

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PIC16LC774T-I/L

PIC16LC774T-I/L - 8-Bit MCU, 7KB OTP, 20MHz, 44-PLCC | Microchip

The Microchip Technology PIC16LC774T-I/L is an 8-bit RISC microcontroller from the PIC16C/L family, offering 7KB of OTP (One-Time Programmable) program memory (4K x 14 words), 256 bytes of RAM, and 33 digital I/O pins in a 44-pin PLCC surface-mount package supplied on tape-and-reel. It operates from a 2.5V to 5.5V supply at up to 20MHz clock speed, making it a low-power general-purpose MCU for industrial and embedded designs. What is an 8-bit microcontroller (MCU)? A microcontroller is a single-chip computer that integrates a CPU core, program memory, data RAM, and peripheral interfaces (timers, ADC, communication ports). The "8-bit" designation refers to the width of the data path and ALU: instructions and data are processed 8 bits at a time. Within the broader taxonomy, a microcontroller belongs to the semiconductor family -> integrated circuit -> logic IC -> microcontroller. Microchip's PIC16 family uses a RISC (Reduced Instruction Set Computer) architecture, and the "LC" prefix denotes the low-voltage CMOS variant optimized for battery-powered applications. Key features of the PIC16LC774T-I/L include the high-performance PIC16 RISC CPU with 35 single-word instructions, where all instructions execute in a single cycle except program branches (two cycles). The 20MHz operating speed delivers 5 MIPS (million instructions per second) throughput. Peripherals typically include multiple timers, a 10-bit or 12-bit ADC, USART/SCI, SPI, and I2C, with 33 I/O pins supporting direct interfacing to sensors, switches, and displays. The device is built on a CMOS process with low-power design techniques, making it well-suited for battery-powered or energy-conscious industrial equipment. Industrial temperature grade (-40C to +85C) is indicated by the "I" suffix. The 44-pin PLCC package supports through-hole-style reflow soldering and socket-based prototyping, simplifying field replacement. Typical applications include industrial automation controllers, HVAC control systems, sensor signal conditioning nodes, consumer electronics with user interfaces, and embedded control boards. The combination of OTP memory, robust peripherals, and the legacy PLCC footprint has made this part a long-life choice for designs that need predictable supply and field-replaceable microcontrollers. When designing with this MCU, ensure the oscillator circuit matches the chosen clock source (crystal, resonator, or external clock) per datasheet recommendations. Use ICD (In-Circuit Debugger) headers for development; note that OTP parts cannot be re-programmed, so development typically uses a windowed or flash equivalent (e.g., PIC16F877) for prototyping. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that go beyond the manufacturer datasheet to support sourcing and design decisions.

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PIC16LC774T-I/PQ

PIC16LC774T-I/PQ - 8-bit 20MHz 7KB OTP MCU 33 I/O | Microchip

The Microchip PIC16LC774T-I/PQ is an 8-bit RISC microcontroller from the PIC PIC(R) 16C family that delivers 20 MIPS performance from a 20 MHz oscillator, integrates 7 KB (4K x 14) of One-Time-Programmable (OTP) program memory, 256 bytes of data RAM, and 33 digital I/O lines, and is housed in a 44-pin MQFP (10x10 mm) surface-mount package. The part is specified for the industrial -40C to +85C temperature range and is supplied on a Tape & Reel carrier as the /T (Tape & Reel) variant. As a member of the low-power "LC" family, it operates from a 2.5V to 5.5V supply, suiting battery-backed and energy-sensitive applications. What is a PIC16C/LC microcontroller? A PIC16 microcontroller is a Harvard-architecture 8-bit RISC MCU built around the PIC16 CPU core. Its program memory bus and data memory bus are physically separated, allowing the instruction fetch and the data read/write to occur in parallel within a single instruction cycle. PIC16 devices target low-power, deterministic, real-time embedded control tasks and sit inside a taxonomy of PIC microcontrollers -> 8-bit Microcontrollers -> Microcontrollers -> Integrated Circuits. The 'LC' subfamily uses CMOS process technology optimized for low quiescent current draw, while the 'C' suffix indicates the use of One-Time-Programmable EPROM rather than flash. The PIC16LC774T-I/PQ executes most instructions in a single 200 ns cycle (at 20 MHz), with only program branches requiring two cycles, and provides 35 single-word instructions to learn. Peripherals integrated on-die include a 12-bit ADC, two analog comparators, a synchronous serial port (SSP) configurable as SPI or I2C, a USART with addressable mode, a Capture/Compare/PWM (CCP) module, an 8-bit parallel slave port, and a watchdog timer with on-chip RC oscillator. Typical applications include industrial sensor conditioning, motor control loops, instrumentation front-ends, and portable battery-powered devices. The wide operating voltage (2.5V to 5.5V) and low-power LC design make it a fit for handheld and remote sensor nodes where quiescent current dominates runtime budget. When designing with the PIC16LC774T-I/PQ, ensure the MCLR/Vpp reset circuit follows Microchip's recommended RC network to guarantee clean startup, and place a 0.1 uF decoupling capacitor within 5 mm of the VDD/VSS pins. Because the program memory is OTP, firmware must be fully validated before programming - field firmware updates require a different (flash) part such as PIC16F877. This page synthesizes distributor pricing snapshots, drop-in alternative MPNs, and application design guidance that goes beyond what is available in the manufacturer datasheet alone.

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PIC16LC774T-I/PT

PIC16LC774T-I/PT - 8-Bit MCU, 7KB OTP, 12-bit ADC | Microchip

The Microchip Technology PIC16LC774T-I/PT is an 8-bit RISC microcontroller from the PIC® 16C family, featuring a 20 MHz PIC core, 7KB (4K x 14) of One-Time Programmable (OTP) program memory and 256 bytes of data RAM, housed in a 44-pin TQFP (10x10 mm) package. It integrates 10 channels of 12-bit Analog-to-Digital Conversion (ADC), a high-performance RISC CPU executing 35 single-word instructions, and a rich peripheral set targeting analog-signal embedded designs. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory and peripheral interfaces on one die. The PIC16LC774 belongs to the 8-bit PIC16 family, which sits within the broader 8-bit microcontroller hierarchy (8-bit MCU -> microcontroller -> embedded processor -> semiconductor). It uses a RISC-style Harvard architecture with separate program and data buses, and OTP program memory is programmed once at production time, making the LC variants well suited to high-volume cost-sensitive applications where firmware is final. Key features of the PIC16LC774T-I/PT include: 33 digital I/O pins, three counter/timer modules, a Watchdog Timer (WDT), I2C/SPI/UART-USART serial interfaces, dual analog comparators, and 10 channels of 12-bit ADC. According to the manufacturer datasheet, all instructions execute in a single cycle except program branches which take two cycles, and the device operates across the industrial -40C to +85C temperature range. Typical applications include industrial process control with analog front ends, instrumentation requiring precision ADC inputs, motor control with feedback sensing, sensor conditioning, and mixed-signal embedded systems. The 12-bit ADC resolution (vs 10-bit on smaller PIC16 parts) makes the LC774 particularly suited for precision measurement applications that would otherwise require an external ADC. When designing with this device, ensure external oscillator components are chosen to meet the 20 MHz specification, and consider migrating to the PIC16F877 (Flash-based equivalent in the same 44-TQFP footprint) for prototypes or low-volume production where in-system reprogrammability is required. The 'LC' family is the lowest-power 16C line; the 'F' family offers Flash memory for development. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone - including same-package same-family PIC16 variants and pin-compatible cross-brand considerations that engineers actually evaluate during component selection.

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PIC16LC774T/PQ

PIC16LC774T/PQ - 8-bit MCU, 7KB OTP, 256 RAM, 33 I/O | Microchip

The Microchip Technology PIC16LC774T/PQ is a low-power CMOS 8-bit microcontroller built around the PIC16 RISC architecture, offering 7 KB of One-Time Programmable (OTP) program memory, 256 bytes of data RAM, and 33 digital I/O pins in a 44-pin MQFP (PQ) surface-mount package. Operating from a 2.5 V to 5.5 V supply and supporting a maximum clock rate of 20 MHz, the part delivers up to 5 MIPS of throughput with all single-cycle instructions except program branches. The on-chip peripheral set typically includes multiple 8-bit and 16-bit timers, a 10-bit Analog-to-Digital Converter, an asynchronous serial port (USART), a synchronous serial interface (SSP/SPI/I2C), and a parallel slave port, making it suitable for mixed analog/digital embedded designs. What is an 8-bit RISC microcontroller? An 8-bit RISC MCU executes a reduced instruction set where most instructions complete in a single clock cycle, giving deterministic timing and high code density for embedded control. The PIC16C/LC family sits at the entry-level of Microchip's mid-range lineup, between the smaller PIC12/PIC14 devices and the higher-pin-count PIC17/PIC18 parts. Its position in the broader semiconductor taxonomy is: microcontroller (MCU) -> 8-bit MCU -> mid-range MCU -> embedded controller -> semiconductor IC. This family is widely used in industrial, consumer, and appliance designs where cost, deterministic interrupt response, and long product life outweigh raw computational throughput. Key features of the PIC16LC774T/PQ include 35 single-word instructions, four oscillator options including external RC and crystal modes, an internal brown-out reset, a watchdog timer with its own on-chip RC oscillator, in-circuit serial programming (ICSP) capability, and a programmable code protection scheme. The 'LC' suffix denotes the extended low-voltage (2.5 V to 5.5 V) variant, while the 'T' indicates tape-and-reel packaging, and '/PQ' specifies the 44-pin Plastic Quad Flat Pack. Compared with the 5 V-only 'C' parts, the LC variant is preferred for battery-powered or 3.3 V system designs. Architecturally, the PIC16LC774 uses a Harvard bus layout with separate program and data memory spaces, a 14-bit wide program memory bus, and an 8-bit data bus. The 8-level deep hardware stack and 15 special-function hardware registers underpin its deterministic interrupt handling. Power management is supported via Sleep mode with wake-up on interrupt, and the device is fully static, allowing the clock to be stopped without losing register state. Typical applications include industrial control panels, HVAC thermostats, instrumentation front-ends, small appliance controllers, security keypads, automotive body electronics (non-safety), and educational or hobby development boards. The 33 I/O pins comfortably drive keypads, character LCDs, and relay or triac interfaces when paired with appropriate buffers. When designing with this part, allocate the analog and digital I/O banks carefully: pins multiplexed with the A/D converter share a single sample/hold, and placing noisy digital signals adjacent to analog inputs degrades converter noise performance. Always fit decoupling capacitors of 0.1 uF close to VDD/VSS, observe the in-circuit serial programming pinout if the PCB will be programmed in production, and verify that the chosen oscillator mode supports the required instruction cycle timing at the system's lowest operating voltage.

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PIC16LC774T/PT

PIC16LC774T/PT - 8-Bit 20MHz OTP MCU 7KB Flash | Microchip

The Microchip Technology PIC16LC774T/PT is an 8-bit RISC microcontroller from the PIC16 family with a 20MHz CPU core, 7KB (4K x 14) of One-Time-Programmable (OTP) program memory and 256 bytes of data RAM, housed in a 44-pin TQFP (10x10 mm) surface-mount package. What is an 8-bit microcontroller? An 8-bit MCU is a small computer-on-a-chip with an 8-bit data path; the PIC16 family from Microchip uses a Harvard-architecture RISC core with a single accumulator (W register) and a small, fixed instruction set optimized for deterministic single-cycle execution. OTP microcontrollers are programmed once at production and cannot be erased, which lowers unit cost versus flash-based parts in high-volume applications. The PIC16LC774T/PT features 33 general-purpose digital I/O pins and integrates a 12-bit Analog-to-Digital Converter (ADC) with up to 10 input channels, providing precision mixed-signal capability for sensor-interface designs. Connectivity peripherals include I2C, SPI, and UART/USART interfaces, enabling the part to act as a communication hub or peripheral controller. The 'LC' suffix denotes a low-voltage CMOS variant that operates across 2.5V to 5.5V, ideal for battery-powered and portable systems. The PIC16LC774 is built on Microchip's enhanced mid-range core, supporting 35 single-word instructions with all instructions executing in a single instruction cycle except program branches (two cycles). The architecture provides 8-level deep hardware stack and interrupt handling with context saving, allowing responsive real-time control loops. An external oscillator interface supports crystals, resonators, or external clock sources up to 20MHz. Typical applications include industrial sensor conditioning with 12-bit ADC conversion, consumer appliance control panels, automotive body electronics subsystems, HVAC control modules, and embedded data-acquisition front-ends. The 33 I/O pins easily drive keypads, LED indicators, LCDs, and small relay or MOSFET driver stages. When designing with this device, note the OTP memory cannot be re-programmed in-circuit - firmware must be fully validated before production programming. The 44-pin TQFP package provides compact PCB mounting and adequate thermal performance for industrial temperature grade. This page consolidates distributor pricing, pin-compatible TQFP-44 alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC16LC77T-04/L

PIC16LC77T-04/L - 4MHz 8-bit OTP MCU 14KB Flash 44-PLCC | Microchip

The Microchip PIC16LC77T-04/L is an 8-bit RISC microcontroller in the PIC16C mid-range family, offering 14 KB (8K x 14) of One-Time-Programmable (OTP) program memory, 368 bytes of RAM, and 33 digital I/O pins, housed in a 44-pin PLCC (J-Lead) package supplied on Tape & Reel. It operates at up to 4 MHz from a 3.3 V or 5 V supply (the "LC" prefix denotes the low-voltage/commercial variant), and integrates a multi-channel 8-bit A/D converter, capture/compare/PWM modules, USART, and synchronous serial port. The "T" suffix in the MPN indicates Tape & Reel packaging, while "-04" denotes the 4 MHz maximum oscillator speed grade, and "/L" specifies the 44-pin PLCC J-lead package. An 8-bit PIC microcontroller (MCU) is a small, low-power computer-on-a-chip built around a Harvard-architecture RISC CPU with separate program and data buses, a fixed instruction set, and integrated peripherals such as timers, A/D converters, and serial interfaces. Within the broader taxonomy, this device sits at: PIC16C7X -> PIC16 family -> PIC microcontroller -> 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. PIC mid-range MCUs are widely used for deterministic, low-cost control applications because the 14-bit instruction word keeps code density high while the RISC pipeline delivers predictable interrupt latency. Key differentiating specifications of the PIC16LC77T-04/L include 14 KB OTP program memory organized as 8K x 14 bits, 368 bytes of data RAM, 33 I/O pins with high-current sink/source capability, an integrated 8-bit A/D converter with up to 8 input channels, two 8-bit timers plus one 16-bit timer, a USART for asynchronous/synchronous serial communication, and a master/slave SSP. The 44-pin PLCC package provides a socket-replaceable, surface-mount form factor useful for prototyping and field serviceability. Architecturally, the device uses a RISC core with 35 single-cycle instructions, a 14-bit instruction word, and a 4 MHz internal clock that yields a 250 ns instruction cycle. The Brown-out Reset (BOR), Power-on Reset (POR), and Watchdog Timer (WDT) with on-chip RC oscillator provide reliable operation in electrically noisy industrial environments, while the wide operating voltage range (typically 2.5 V to 6.0 V for the LC variant) supports both 3.3 V and 5 V system rails. Typical applications include industrial process control, motor control front-ends, instrumentation data acquisition, security system panels, automotive body electronics (non-safety), HVAC controllers, and general-purpose embedded control. The combination of OTP memory, integrated ADC, and USART also suits remote sensor hubs and simple human-machine interface (HMI) controllers. When designing with this part, note that OTP memory cannot be electrically erased - prototypes should use the windowed (UV-erasable) PIC16LC77-04/L variant during development, and production code must be fully verified before programming. Decoupling should include a 0.1 µF ceramic capacitor placed within 5 mm of the VDD pin, with a 10 µF bulk capacitor at the regulator output. This page synthesizes distributor availability, drop-in same-package alternatives, AEO-optimized FAQ answers, and practical design notes that complement the manufacturer datasheet and help engineers quickly assess fit, sourcing risk, and PCB-level integration.

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PIC16LC77T-04/PQ

PIC16LC77T-04/PQ - 8-Bit 4MHz MCU, 14KB OTP, 44-MQFP | Microchip

The Microchip Technology PIC16LC77T-04/PQ is an 8-bit RISC microcontroller from the PIC16CXX mid-range family, operating at 4 MHz and offering 14 KB (8K x 14) of One-Time Programmable (OTP) program memory with 368 bytes of RAM, all housed in a 44-pin MQFP (10x10 mm) surface-mount package. An 8-bit microcontroller (MCU) is a single-chip computer that uses an 8-bit data path to process instructions and data; RISC (Reduced Instruction Set Computer) architectures such as the PIC execute most instructions in a single clock cycle, giving deterministic timing useful for embedded control. The PIC16C7X family sits within Microchip's broader microcontroller taxonomy (8-bit MCU -> microcontroller -> embedded controller -> semiconductor IC). These devices integrate an 8-channel, 8-bit Analog-to-Digital Converter (ADC), Brown-out Detect (BOD), Power-on Reset (POR), Pulse Width Modulation (PWM), and Watchdog Timer (WDT), reducing external component count in cost-sensitive designs. Key specifications include an operating voltage range of 2.5 V to 6 V, 33 digital I/O pins, and three serial connectivity options — I2C, SPI, and UART/USART (USART). The CMOS, fully-static design supports selectable oscillator configurations and offers low power consumption suitable for both battery- and line-powered applications. The LC suffix denotes the low-voltage / low-power variant optimized for extended Vdd range, while the T suffix indicates tape-and-reel packaging and the 04 suffix denotes the 4 MHz speed grade. Technically, the PIC16LC77T-04/PQ uses a Harvard architecture with separate program and data buses; its 14-bit instruction word allows all 35 single-word instructions to execute in 200 ns at 20 MHz (or 1 us at 4 MHz). On-chip peripherals include two 8-bit and one 16-bit timer/counters, a synchronous serial port configurable for SPI or I2C, and an addressable USART module that supports 9-bit address detect. Typical applications span industrial automation front-ends, consumer appliances (washing machines, microwave ovens), automotive subsystems, and small-scale data acquisition systems that require moderate ADC capability with minimal external circuitry. The 44-MQFP footprint is a mature surface-mount package that balances pin density (33 I/O lines) with hand-solder feasibility. When selecting this part, verify the OTP memory limitation — code is programmed once and cannot be changed — so design firmware must be fully validated prior to programming. For prototypes, consider the windowed (UV-erasable) PIC16LC77-04/PQ variant on the same family. This page synthesizes distributor pricing, drop-in alternatives from the same PIC16C7X family, and practical design notes not found in the manufacturer datasheet.

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PIC16LC77T-04I/PQ

PIC16LC77T-04I/PQ - 8-Bit 4MHz 14KB OTP MCU 44-MQFP | Microchip

The Microchip Technology PIC16LC77T-04I/PQ is an 8-bit RISC microcontroller from the PIC16C7X mid-range family, featuring a 4MHz maximum clock speed, 14KB (8K x 14) of One-Time Programmable (OTP) program memory, and 368 bytes of RAM, housed in a 44-pin MQFP (10x10 mm) surface-mount package. It supports 33 I/O pins and integrates a rich peripheral set including an 8-channel 8-bit Analog-to-Digital Converter (ADC), synchronous and asynchronous serial communications via I2C, SPI, and UART/USART, plus capture/compare/PWM and Timer1 modules. An OTP-based microcontroller is a type of embedded processor that stores program code in non-volatile one-time-programmable memory rather than flash; the code is written once during production or prototyping and cannot be erased, making OTP parts cost-optimized for high-volume mature products. As part of the PIC16C7X family, this device sits in the broader hierarchy: PIC16C77 -> PIC16C7X family -> PIC16CXX mid-range architecture -> 8-bit microcontroller -> embedded MCU -> semiconductor. Key features include industrial temperature grade operation (-40C to +85C), low-power CMOS technology, and a 5V supply rail. The ADC subsystem provides 8 channels of 8-bit resolution for sensor interfacing, while the I2C/SPI/UART communication ports enable flexible connectivity with sensors, displays, and other MCUs. The PIC16LC77T-04I/PQ uses a Harvard RISC architecture with separate program and data buses, an accumulator-based ALU, and an 8-level deep hardware stack. Its instruction set is highly orthogonal with single-cycle execution for most instructions (excluding branches), enabling predictable deterministic timing - ideal for real-time control loops. The 4MHz oscillator drives a four-phase internal clock, yielding a 1MHz instruction cycle rate. The OTP program memory supports ICSP (In-Circuit Serial Programming) for production-line programming. Typical applications include industrial automation controllers, sensor signal conditioning interfaces, motor control front-ends, embedded data acquisition systems, and legacy 8-bit embedded designs. The wide I/O count (33 I/O) and integrated ADC make it suitable for distributed sensor nodes and HVAC controllers. When designing with this part, ensure proper decoupling (100 nF + 10 uF bulk) close to VDD/VSS, use the ICSP pins for in-circuit programming, and verify brown-out and watchdog configuration bits during firmware bring-up. This page synthesizes distributor pricing, package-level drop-in alternatives, and practical design notes that are not consolidated in the manufacturer datasheet alone.

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PIC16LC77T-04I/PT

PIC16LC77T-04I/PT - 8-bit MCU, 14KB OTP, 4MHz, 44-TQFP | Microchip

The Microchip Technology PIC16LC77T-04I/PT is an 8-bit RISC microcontroller from the PIC® 16C 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 TQFP (10x10 mm) surface-mount package. It provides 33 digital I/O pins and integrates multiple communication peripherals including I2C, SPI, and UART/USART for embedded connectivity. The device operates across a wide 2.5V to 6.0V supply range, supporting both 3.3V and 5V rails, and is rated for the industrial -40°C to +85°C temperature range (denoted by the 'I' suffix). The 'LC' prefix indicates the low-power CMOS variant of the PIC16C7X family, while the 'T' suffix specifies tape-and-reel packaging for high-volume assembly. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (ROM/RAM), and peripherals on one die, optimized for embedded control tasks where deterministic behavior and low cost outweigh raw compute throughput. Within the broader taxonomy, microcontrollers belong to microcontrollers -> integrated circuits -> semiconductors. The PIC16LC77T family sits in Microchip's mid-range PIC16 architecture, which uses a 14-bit instruction word and Harvard bus structure to deliver predictable instruction timing at low clock rates. The LC variants specifically trade raw speed for reduced active and standby current, making them suited to battery-powered or thermally constrained designs. Key features include 14KB of OTP program memory (not re-programmable in-circuit), 368 bytes of data RAM, 33 bidirectional I/O pins with 25 mA sink/source drive, an 8-channel 8-bit ADC, a USART module, an MSSP module supporting SPI and I2C, two 8-bit timers and one 16-bit timer, a watchdog timer, and brown-out reset. The PIC16C7X core executes most instructions in a single oscillator cycle, providing 4 MIPS at 4MHz, with a 200 ns instruction cycle for deterministic control loops. The 44-TQFP package exposes the full peripheral set, including external interrupt lines and the parallel slave port. The OTP memory allows factory or field one-time programming using Microchip's standard development tools, reducing per-unit cost versus flash-based equivalents. Typical applications include industrial sensor conditioning, motor control front-ends, HVAC controllers, automotive body and chassis subsystems, consumer appliance interfaces, and white-goods control boards where a low pin-count, low-power 8-bit core is sufficient. The wide 2.5-6.0V supply range allows direct operation from unregulated 5V rails or battery stacks. The combination of OTP memory, on-chip ADC, and multiple serial interfaces lets the PIC16LC77T-04I/PT replace several discrete components in cost-sensitive embedded designs. When designing with this device, allocate the 368-byte RAM budget carefully for stack and scratchpad use, since PIC mid-range devices share RAM between general-purpose storage and special-function registers. Decouple VDD with a 100 nF ceramic capacitor placed within 5 mm of the supply pin, and route the MCLR pin through the recommended resistor-capacitor reset network. Note that OTP memory cannot be rewritten - use the windowed (UV-erasable) PIC16C77 variants or the flash-based PIC16F877 for prototyping.

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PIC16LC781-I/SO

PIC16LC781-I/SO - 8-Bit 20MHz MCU 1.75KB OTP | Microchip

The Microchip Technology PIC16LC781-I/SO is a low-power CMOS 8-bit microcontroller built on the PIC16C Harvard architecture, featuring 1.75 KB (1K x 14) of One-Time-Programmable (OTP) program memory, 128 bytes of RAM, and a 20 MHz maximum CPU clock in a 20-pin SOIC (SO) package. It integrates a 10-bit successive-approximation ADC, two analog comparators, a USART/SCI serial port, and up to 16 digital I/O lines, making it a versatile single-chip solution for mixed-signal embedded designs. What is an OTP microcontroller? An OTP (One-Time-Programmable) MCU is a class of microcontroller whose internal program memory is based on EPROM cells - they can be programmed exactly once after packaging, then erased only by strong UV light through a quartz window. Compared to flash-based MCUs, OTP variants typically cost less per unit and offer slightly better radiation tolerance, which is why PIC16LC781 is commonly used in cost-sensitive, high-volume industrial and appliance applications. PIC16LC781 sits within the Microchip PIC16 family -> 8-bit MCU -> microcontroller -> embedded processing -> semiconductor hierarchy. Key differentiating features include a wide 2.5 V to 5.5 V supply-voltage range, an integrated brown-out reset (BOR), a programmable watchdog timer (WDT), an in-circuit serial programming (ICSP) interface, and Microchip's nanoWatt technology for low-power sleep modes. The on-chip 10-bit ADC supports up to 8 input channels, providing direct connection to sensors without an external ADC. Two analog comparators with programmable reference voltages simplify power-supply and signal-conditioning tasks. Typical applications include appliance control boards, battery chargers, sensor interfaces, low-end SMPS controllers, and small motor drivers. Because the part is OTP-based, the code is fixed at production time, so it is best suited to products that ship in large volumes with no field firmware updates. When designing with PIC16LC781, leave the ICSP pins (RB6/RB7) accessible on the PCB even if in-circuit programming is not planned during production - this dramatically simplifies lab bring-up and debugging. Because the part is OTP, ensure your firmware is fully validated before mask-programming the final order.

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PIC16LC781-I/SS

PIC16LC781-I/SS - 8-bit 20MHz MCU 1.75KB OTP 20-SSOP | Microchip

The Microchip Technology PIC16LC781-I/SS is an 8-bit RISC microcontroller built on the PIC16 mid-range CPU core, housed in a 20-pin SSOP (Shrink Small Outline Package) and operating at clock frequencies up to 20 MHz. According to distributor data, the device integrates 1.75 KB (1K x 14) of OTP program memory, 128 bytes of RAM, and 16 digital I/O pins in a CMOS process, with an industrial operating temperature range of -40 C to +85 C. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (program + data), and peripheral interfaces onto one piece of silicon. Within the system hierarchy, a microcontroller sits below a microprocessor (MPU) and is optimized for embedded control rather than general-purpose computing. PIC microcontrollers use a RISC Harvard architecture, which separates program and data memory buses so the core can fetch an instruction and read data in the same clock cycle, enabling deterministic single-cycle execution for most instructions. Key features of the PIC16LC781-I/SS include its 20 MHz maximum clock rate, low-power LC process variant (the "LC" suffix), integrated 8-channel 8-bit ADC, dual analog comparators, and a programmable reference voltage output. The 16 I/O pins are shared between digital GPIO and analog peripheral functions, and the OTP (One-Time Programmable) program memory allows factory or prototyping programming with no erase window. Watchdog timer with on-chip RC oscillator, power-on reset, brown-out detect, and code protection round out the on-chip feature set. Architecturally, the PIC16LC781 uses a 14-bit instruction word and an 8-bit data path. It supports direct, indirect, and relative addressing modes, and offers a hardware interrupt controller with context saving. Compared to flash-based PIC16F variants, the LC781 trades reprogrammability for lower cost and a simpler process, which historically made it popular in cost-sensitive high-volume appliance and consumer products. Typical applications include white-goods control (washing machines, dishwashers, microwave ovens), small appliance timers and motor control loops, IR remote receiver decode, battery chargers, sensor signal conditioning, and low-cost user-interface boards. Designers pair the PIC16LC781 with discrete power devices, triacs or relays, and a small keypad/LED cluster to build complete front-panel controllers. Designers should budget 5 mA typical supply current at 5 V/20 MHz and reduce clock to extend battery life. Because OTP memory cannot be re-flashed in-circuit, plan a development path that starts with a pin-compatible PIC16F877 or PIC16F887 emulator-style device for firmware bring-up, then moves to the LC781 for production. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, including verified cross-brand substitutes that share the SSOP-20 footprint.

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PIC16LC782-I/P

PIC16LC782-I/P - 8-bit MCU, 3.5KB OTP, 20MHz, 20-DIP | Microchip

The Microchip Technology PIC16LC782-I/P is a low-power CMOS 8-bit microcontroller from the PIC16C family, featuring 3.5KB of One-Time-Programmable (OTP) program memory, 128 bytes of RAM, 16 digital I/O lines, and a maximum clock speed of 20 MHz in a 20-pin PDIP (DIP-20, 0.300 inch / 7.62 mm) through-hole package. The device operates from 3.0 V to 5.5 V (the LC low-voltage variant), making it suitable for both 3.3 V and 5 V system designs, and integrates peripherals such as a 10-bit A/D converter (the PIC16LC781/782 analog-rich family), comparators, PWM modules, USART, and timers for mixed-signal control. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, volatile data RAM, and configurable peripherals on one silicon die. PIC microcontrollers use a Harvard RISC architecture with separate program and data buses, and the PIC16LC782 belongs to the mid-range 14-bit instruction family. The 'LC' suffix denotes the low-voltage / low-power process variant, while the 'C' suffix indicates the OTP program memory technology (vs. 'F' for Flash). Key features include 35 instruction set (most single-cycle), 200 ns instruction cycle time at 20 MHz, 8-bit ADC with up to 8 input channels, two analog comparators, a Capture/Compare/PWM module, a USART with on-chip baud-rate generator, a watchdog timer with on-chip RC oscillator, and an internal/external oscillator selection. The 20-pin DIP package provides breadboard-friendly prototyping and supports both commercial and industrial temperature grades (the -I suffix indicates -40 °C to +85 °C). The PIC16LC782 architecture uses a 14-bit-wide instruction word and an 8-bit data path with a 32-level hardware stack. Brown-out reset (BOR), power-on reset (POR), and an in-circuit serial programming (ICSP) interface are standard. Low-power features include SLEEP mode with multiple wake-up sources and an on-chip 4 MHz RC oscillator option that lets the system boot without an external crystal. Typical applications include appliance and white-goods control, automotive interior modules, lighting controllers, power supplies with analog monitoring, motor-control front-ends, security and alarm panels, and industrial sensor-interface nodes. The integrated ADC plus comparator pair makes the PIC16LC782 especially useful for closed-loop analog control where a single-chip solution simplifies the BOM. When designing with this part, ensure Vdd decoupling (100 nF + bulk) is placed within 5 mm of the power pins, and add a 4.7 kOhm pull-up on MCLR if not driven by a dedicated supervisor. For reliable in-system programming, route ICSPCLK/ICSPDAT traces away from switching nodes and keep them shorter than 50 mm. This page synthesizes distributor pricing, drop-in PIC16 alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC16LC782-I/SS

PIC16LC782-I/SS - 8-bit PIC MCU, 3.5KB OTP, 16 I/O | Microchip

The Microchip Technology PIC16LC782-I/SS is an 8-bit RISC microcontroller built on the PIC CPU core, supplied in a 20-pin SSOP package with industrial -40C to +85C temperature rating. It integrates 3.5 KB of OTP program memory (2048 x 14 words), 128 bytes of data RAM, 16 digital I/O pins, and an internal 8 MHz / 20 MHz oscillator, with on-chip peripherals tuned for advanced analog and low-power applications. An 8-bit microcontroller (MCU) is a single-chip processor that integrates a CPU, memory, and peripherals into one package. PIC microcontrollers use a Harvard RISC core, which separates program and data buses for deterministic instruction throughput; the PIC16 family sits in the low-pin-count, OTP-based tier of Microchip's lineup, and "LC" denotes the low-voltage CMOS process suited to battery-powered designs. Key features include a maximum 20 MHz clock, 14-bit instruction word, an 8-channel 8-bit ADC, PWM outputs, comparators, and an internal voltage reference. The wide 2.5V to 5.5V supply range supports both 3.3V and 5V rails commonly found in industrial and consumer systems. The integrated advanced analog peripherals (op-amps, comparators, and a 5-bit DAC) enable closed-loop control without external components. Architecturally, the PIC16LC782 combines a RISC instruction set with advanced analog peripherals specifically targeting SMPS, lighting, and battery-charging applications. The 14-bit program memory width gives compact code density (35 instructions per 14-bit word), and the LC process variant supplies low quiescent current for energy-sensitive designs. Typical applications include LED lighting drivers, switched-mode power supplies (SMPS), battery chargers, DC-DC converters, and small appliance controllers. The integrated analog peripherals remove the need for external op-amps in feedback loops, reducing BOM cost and PCB area. The wide operating voltage window allows direct connection to single-cell Li-ion or 5V rails. When designing with this device, ensure that the OTP memory is programmed before final PCB assembly since OTP cannot be re-written in-circuit. Use Microchip's MPLAB X IDE and a PICkit programmer for development; verify that the chosen programmer supports the LC78x family. Decoupling capacitors must be placed within 5 mm of VDD for stable analog operation. This page synthesizes distributor pricing, drop-in alternatives, application notes, and design considerations that go beyond the manufacturer datasheet to accelerate your design and sourcing decisions.

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PIC16LC782T-I/SO

PIC16LC782T-I/SO - 8-Bit 20MHz 3.5KB OTP MCU | Microchip

The Microchip Technology PIC16LC782T-I/SO is an 8-bit PIC16-family microcontroller built around a RISC core running at 20MHz, with 3.5KB (2K x 14) of One-Time-Programmable (OTP) program memory and 128 bytes of data RAM, housed in a 20-pin SOIC (7.50mm body) package rated for the industrial -40C to +85C range. A microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, non-volatile program memory, and peripherals such as ADC, DAC, timers, and communication interfaces into one package. PIC16 devices sit at the low pin-count, low-power end of Microchip's PIC architecture hierarchy (PIC10/16 -> mid-range 8-bit PIC -> 8-bit MCU -> microcontroller -> semiconductor). The PIC16LC782 specifically targets analog-rich mixed-signal designs by integrating both an 8-bit Analog-to-Digital Converter (ADC) with up to 8 input channels and an 8-bit Digital-to-Analog Converter (DAC) with one output channel on-chip. Key features include 20MHz CPU clock, 16 digital I/O lines, an integrated 8-channel 8-bit ADC, an 8-bit DAC with output buffer, dual analog comparators, a 16-bit timer/counter with capture/compare/PWM, a USART/SCI module, and an internal bandgap voltage reference. The 'LC' prefix designates a low-power CMOS variant operating over 2.5V to 5.5V, while the 'T' suffix denotes Tape & Reel packaging. The OTP program memory allows one-time field programming via standard PIC programmers, with code retention rated for typical industrial lifetimes. Architecturally, the device uses a 14-bit instruction word RISC core with a two-stage pipeline, an accumulator-based ALU, and Harvard-style separate program and data buses. The integrated analog peripherals are designed for closed-loop control loops where the ADC samples a sensor, a control algorithm runs on the CPU, and the DAC outputs an analog control voltage - eliminating the need for a separate analog front-end IC. Typical applications include SMPS primary-side control (where the on-chip DAC programs the reference), closed-loop fan/lighting control, sensor conditioning front-ends, small consumer appliances, and any cost-sensitive embedded design needing both digital logic and analog trim/servo control. The 20-pin SOIC footprint is the most common PIC16 footprint, simplifying hand prototyping and breadboard-friendly adapter boards. When designing with this part, note that OTP memory cannot be re-programmed in-circuit - choose the flash-based PIC16F or PIC16LF equivalent family for field-updatable firmware. The LC variant runs 3.3V at 20MHz; confirm headroom at 5V with the speed/frequency characteristic of the specific OTP bit cell generation. This page synthesizes distributor pricing, drop-in OTP and flash alternatives, and practical analog-mixed-signal design notes not found in the manufacturer datasheet.

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PIC16LC782T-I/SS

PIC16LC782T-I/SS - 8-Bit 20MHz MCU, 3.5KB OTP, SSOP-20 | Microchip

The Microchip Technology PIC16LC782T-I/SS is an 8-bit PIC microcontroller in the PIC® 16C family, featuring a 20MHz CPU, 3.5KB (2K x 14) of One-Time-Programmable (OTP) program memory and 128 bytes of RAM, housed in a 20-pin SSOP package with tape-and-reel packaging. An 8-bit PIC microcontroller is a compact CMOS processor that integrates a RISC CPU core, non-volatile program memory, working RAM, and peripherals (A/D, D/A, timers, comparators) into a single chip. PIC microcontrollers sit in the broader 8-bit MCU taxonomy (PIC -> 8-bit MCU -> microcontroller -> embedded processor -> semiconductor). The LC variant operates at low voltage (2.5V-5.5V), enabling battery-powered and energy-efficient designs. Key features of the PIC16LC782T-I/SS include a maximum clock rate of 20MHz, 16 digital I/O lines, two on-chip comparators, two timers, a watchdog timer with brown-out reset, an 8-bit A/D converter, and a unique Programmable Switch Mode Controller (PSMC) peripheral. The PIC16C781/782 family is notable for integrating an op-amp, a D/A converter, and the PSMC, enabling compact analog/switching control loops on a single die. The device architecture is built around a 14-bit instruction word, modified Harvard bus, and CMOS process. The integrated op-amp and 8-bit DAC allow direct analog signal conditioning, while the PSMC block simplifies synchronous buck/boost/forward converter control. This combination reduces external analog IC count and PCB footprint. Typical applications include switched-mode power supplies (SMPS) with closed-loop digital control, LED drivers with analog current sensing, battery chargers, sensor signal-conditioning circuits, and motor-control interfaces. Its integrated peripherals make it well-suited to applications that previously required a separate op-amp and PWM controller IC. When designing with the PIC16LC782T-I/SS, ensure VDD stays within 2.5V-5.5V for LC-spec operation. The PSMC block requires careful dead-time programming to avoid cross-conduction; consult the PIC16C781/782 datasheet for the recommended register sequence. OTP memory means code cannot be rewritten in-circuit - use the F-series (Flash) variant for development. This page synthesizes distributor pricing, drop-in alternative listings (same package and pinout), and practical design notes that go beyond the manufacturer datasheet, helping procurement and engineering teams evaluate the part more efficiently.

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PIC16LC923-04I/L

PIC16LC923-04I/L - 8-Bit MCU, 4MHz, 7KB OTP, 52 I/O | Microchip

The Microchip PIC16LC923-04I/L is an 8-bit RISC microcontroller from the PIC16C family operating at up to 4 MHz with 7 KB (4K x 14) of on-chip One-Time-Programmable (OTP) program memory and 176 bytes of SRAM data memory. Housed in a 68-pin PLCC package measuring 24.23 x 24.23 mm, the device exposes 52 digital I/O lines, making it suited to high-pin-count control applications where a simple Harvard-architecture core is preferred over a more complex 16-bit MCU. What is a PIC16C microcontroller? The PIC16C family is Microchip's classic 8-bit OTP-programmable MCU line based on a RISC Harvard architecture. PIC microcontrollers integrate CPU core, non-volatile program memory, RAM, peripherals (timers, ADC, USART, I/O), and in many variants a LCD driver on a single die. They occupy the low-power, deterministic-execution tier of the embedded MCU hierarchy: microcontroller -> 8-bit MCU -> PIC family -> PIC16C sub-family. Compared with flash-based PIC16F parts, PIC16C OTP devices ship with one-time-programmable EPROM and target cost-sensitive volume production. Key features of the PIC16LC923 include 35 single-word instructions with 500 ns single-cycle execution (except program branches which are two cycles), 8-level hardware stack, four 8-bit I/O ports (PORTA-PORTD partially), and a wide 2.5 V to 6.0 V supply range thanks to its LC (low-voltage, low-power CMOS) process. The device integrates peripherals such as timers, a USART, and capture/compare/PWM modules, supporting both 3.3 V and 5 V system designs. The PIC16LC923 uses a 14-bit instruction word and a separate 8-bit data path, with all single-cycle instructions completing in 500 ns at 4 MHz, providing deterministic timing for interrupt-driven control loops. The LC process variant reduces power consumption and allows operation down to 2.5 V, while the -04 speed suffix denotes a 4 MHz maximum clock. Internal RC oscillator and crystal modes are supported, giving flexibility in BOM cost versus timing accuracy. Typical applications include LCD-display-based industrial keypads and front-panel controllers, white-goods and consumer appliances, instrument front panels with LED/LCD indicator logic, and legacy embedded control boards being maintained for long-life programs. The 52 I/O count supports keypad scanning, multiplexed LCD drive, and parallel bus peripherals in a single chip. When designing with this part, note that OTP memory requires windowed parts for verification; engineering units should be ordered in ceramic-windowed packages or pre-programmed before assembly. The 68-pin PLCC footprint allows socketed programming and field replacement, but PLCC tooling and sockets are increasingly scarce - plan second-source or migration paths early in the design cycle. This page synthesizes distributor pricing across Mouser, DigiKey and LCSC, drop-in alternatives within the PIC16LC923 product family, and practical design notes not found in the manufacturer datasheet alone.

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PIC16LC923T-04/PT

PIC16LC923T-04/PT - 8-Bit MCU, 7KB OTP, LCD Driver | Microchip

The Microchip PIC16LC923T-04/PT is an 8-bit CMOS RISC microcontroller with an integrated LCD driver, 7KB (4K x 14) of One-Time-Programmable (OTP) program memory, 176 bytes of SRAM, and a maximum operating frequency of 4 MHz, housed in a 64-pin TQFP (10x10 mm) surface-mount package. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, a small amount of program and working memory, and a set of on-chip peripherals. MCU architectures sit within the larger category of embedded microcontrollers -> microcomputers -> semiconductors. The PIC16C/PIC16LC family from Microchip is the classic RISC-based 8-bit line, and the 'LC' suffix indicates a low-voltage (2.5V minimum) CMOS variant suitable for battery-powered applications. The '923T' member additionally integrates an on-chip LCD driver, which is the rarest feature in this family and the primary reason engineers select this part. Key features include 35 single-word instructions, all executing in a single instruction cycle (500 ns at 4 MHz) except program branches, eight general-purpose registers for fast context switching, and the integrated LCD controller that supports multiplexed glass displays up to 4 backplanes. The device operates from 2.5V to 6V, includes Power-on Reset (POR), Watchdog Timer (WDT), PWM, and supports I2C and SPI serial connectivity. Its 64-pin TQFP package provides generous I/O access for keypad scanning, LCD segment driving, and glue logic. Technically, the PIC16LC923 implements a Harvard architecture with separated program and data buses, enabling simultaneous instruction fetch and operand access. The OTP program memory is factory- or field-programmable using a device programmer and cannot be erased afterward, which makes this part economical for medium-volume production runs where code is finalized. The 'T' suffix denotes tape-and-reel packaging at the assembly level. Typical applications include low-power LCD-based consumer appliances, handheld meters and gauges, thermostat and HVAC control panels, industrial sensor readouts with on-glass display, and battery-powered instrumentation where the integrated LCD driver eliminates the need for an external segment driver IC. The 2.5V minimum VDD also makes it suitable for two-AA-cell designs. When designing with this part, observe the OTP memory constraint: code changes during development are not possible after programming. Develop prototypes on the windowed (UV-erasable) PIC16LC923-04/W or the flash-based PIC16F variant during development, then port to the OTP version for production to control unit cost. This page synthesizes distributor pricing, drop-in PIC16LC923 family alternatives, and practical design notes not found in the manufacturer datasheet alone, helping engineers and procurement teams evaluate the part against current alternatives and lifecycle status as of September 2026.

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PIC16LC924-04/L

PIC16LC924-04/L - 8-Bit CMOS MCU w/ LCD Driver, 7KB OTP | Microchip

The Microchip Technology PIC16LC924-04/L is an 8-bit CMOS RISC microcontroller with an integrated LCD driver, featuring 7KB (4K x 14) of One-Time-Programmable (OTP) program memory, 176 bytes of RAM, and 52 digital I/O pins in a 68-pin PLCC package (24.23 x 24.23 mm). It operates from a 2.5V to 5.5V supply and runs at up to 4 MHz, and it was specifically designed for cost-sensitive applications that need a built-in segment LCD interface without an external driver IC. Background: An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, peripherals, and I/O onto one silicon die. The PIC16C/PIC16LC family from Microchip uses a Harvard RISC architecture with a 14-bit instruction word, which keeps instruction fetch and data access on parallel buses for fast deterministic execution. The 'LC' suffix denotes a low-voltage CMOS variant that operates down to 2.5V, which is critical for battery-powered designs that need to survive deep-discharge conditions. Built-in LCD drivers eliminate the need for an external charge-pump or segment-driver ASIC, reducing both BOM cost and PCB area in meter, appliance, and consumer-display products. Key features include 7KB OTP program memory organized as 4K x 14, 176 bytes of data RAM, 52 bidirectional I/O pins, integrated LCD driver with up to 32 segment outputs, a 5-channel 8-bit ADC, USART, capture/compare/PWM, and a watchdog timer. The OTP memory lets designers iterate firmware during development and lock production units economically for low- to mid-volume manufacturing. The architecture combines a RISC CPU core with on-chip peripherals tuned for human-interface and instrumentation applications. The internal oscillator option further reduces external component count. Typical applications include battery-powered thermostats and utility meters, appliance front-panel controls, point-of-sale terminals, and instrumentation readouts. The on-chip LCD controller eliminates the need for an external driver. When designing with this device, observe the 4 MHz maximum clock at 5V. Designers planning field firmware updates should consider migrating to a Flash-based PIC16F equivalent (such as PIC16F946 in 64-pin TQFP or similar 68-pin variants) to retain the LCD subsystem with in-circuit reprogrammability. This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes that are not collected in any single manufacturer document.

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PIC16LC924-04/PT

PIC16LC924-04/PT - 8-Bit LCD MCU 4MHz 7KB OTP 64-TQFP | Microchip

The Microchip Technology PIC16LC924-04/PT is an 8-bit CMOS RISC microcontroller with integrated LCD driver, 7 KB of OTP program memory (4K x 14), 176 bytes of RAM, and 52 digital I/O lines, packaged in a 64-pin TQFP (10x10 mm). The device operates from 3.3 V or 5 V supplies and runs at up to 4 MHz clock speed, targeting low-power commercial-temperature embedded designs with on-chip segment LCD control. A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory (ROM/Flash/OTP), working RAM, and programmable peripheral I/O. Within the semiconductor hierarchy, the PIC16LC924 belongs to the 8-bit microcontroller family, which sits below 32-bit ARM/MIPS Cortex MCUs but above fixed-function peripheral ICs. The 'LC' prefix denotes a low-power CMOS variant suitable for battery-powered instruments, while the integrated LCD driver eliminates the need for an external segment-driver chip, reducing both BOM cost and PCB area. Key features include 7 KB of OTP (One-Time-Programmable) program memory organized as 4K x 14 instruction words, 176 bytes of data RAM, 52 bidirectional I/O pins, on-chip LCD driver logic capable of multiplexing a glass display, a 4 MHz maximum clock rate at 5 V, and a commercial 0 to +70 C operating temperature range. The device also integrates timers, an A/D converter, and standard PIC16C-series peripherals for compatibility with the established PIC ecosystem. The PIC16LC924 architecture uses Microchip's enhanced PIC16C instruction set with 14-bit-wide instructions and a two-stage pipeline, giving deterministic interrupt response and compact code density. The Harvard memory arrangement separates program and data paths, and the OTP memory is programmed via the standard Microchip ICSP (In-Circuit Serial Programming) interface. Typical applications include handheld measurement instruments with LCD readouts, consumer appliances with segmented displays, point-of-sale terminals, industrial controllers with integrated glass-display panels, and any battery-powered product that needs a small character or numeric LCD without a separate driver IC. When designing with this part, ensure the OTP memory programming budget is finalized before mask/OTP submission, since OTP cannot be erased. Use Microchip's MPLAB X IDE with a PICkit 3/4 or ICD programmer, and select the 'LC' (low-power CMOS) variant explicitly when migrating from PIC16C924 designs to retain pinout compatibility while gaining lower current draw. This page synthesizes distributor pricing for the PIC16LC924-04/PT, drop-in same-family Microchip alternatives, and practical design notes that go beyond what the bare manufacturer datasheet provides.

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PIC16LC924-04/L - 8-Bit CMOS MCU w/ LCD Driver, 7KB OTP | Microchip

PIC16LC924-04/PT - 8-Bit LCD MCU 4MHz 7KB OTP 64-TQFP | Microchip