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PIC16LC77T-04/PQ - 8-Bit 4MHz MCU, 14KB OTP, 44-MQFP | Microchip
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 - 8-Bit 4MHz 14KB OTP MCU 44-MQFP | Microchip
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 - 8-bit MCU, 14KB OTP, 4MHz, 44-TQFP | Microchip
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 - 8-Bit 20MHz MCU 1.75KB OTP | Microchip
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 - 8-bit 20MHz MCU 1.75KB OTP 20-SSOP | Microchip
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 - 8-bit MCU, 3.5KB OTP, 20MHz, 20-DIP | Microchip
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 - 8-bit PIC MCU, 3.5KB OTP, 16 I/O | Microchip
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 - 8-Bit 20MHz 3.5KB OTP MCU | Microchip
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 - 8-Bit 20MHz MCU, 3.5KB OTP, SSOP-20 | Microchip
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 - 8-Bit MCU, 4MHz, 7KB OTP, 52 I/O | Microchip
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 - 8-Bit MCU, 7KB OTP, LCD Driver | Microchip
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 - 8-Bit CMOS MCU w/ LCD Driver, 7KB OTP | Microchip
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 - 8-Bit LCD MCU 4MHz 7KB OTP 64-TQFP | Microchip
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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PIC16LC924-04I/L - 8-Bit 4MHz CMOS MCU with LCD Driver | Microchip
PIC16LC924-04I/L

PIC16LC924-04I/L - 8-Bit 4MHz CMOS MCU with LCD Driver | Microchip

The Microchip Technology PIC16LC924-04I/L is an 8-bit RISC CMOS microcontroller with integrated LCD driver, 7KB (4K x 14) of one-time-programmable (OTP) EPROM program memory, and 176 bytes of SRAM, housed in a 68-pin PLCC (J-Lead) package. It executes 35 single-word instructions at 4 MHz with a 500 ns instruction cycle (except program branches which take two cycles), operating from a 2.0 V to 6.0 V supply that supports both 3.3 V and 5 V rails. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (ROM/RAM), and programmable I/O peripherals on one IC. The PIC16LC924 belongs to the Mid-Range PIC family, descended from the original PIC16C architecture, and is differentiated from generic 8-bit MCUs by its on-chip LCD driver - a feature that historically targeted low-power human-machine-interface products such as metering, thermostats, and portable instruments where displaying segmented alphanumeric data directly removed the need for an external display controller. Key features include 12 digital I/O ports, an integrated LCD driver with up to 32 segment outputs and 4 common planes (32x4 multiplexed), a 5-channel 8-bit ADC, two 8-bit timers plus one 16-bit timer, a USART/SCI serial port, and an industry-standard 8-bit Harvard RISC core. The 'LC' suffix denotes a low-power CMOS variant optimized for battery operation, and the 'I' temperature grade covers the industrial -40C to +85C range. Architecturally the part uses a 14-bit instruction word with separate program and data buses (Harvard), 8 general-purpose file registers, and a hardware multiply assist that supports a single-cycle 8x8 x 16 operation. The integrated LCD charge pump can be configured for static, 1/2, 1/3, or 1/4 duty cycle and supports Type A waveforms, allowing direct connection of typical TN glass without external bias generation. Typical applications include utility metering (electricity, gas, water), electronic thermometers, handheld measurement instruments, automotive dashboard clusters, white-goods control panels, and any portable product requiring a segmented glass display driven from a single low-voltage battery. The on-chip LCD controller typically eliminates the need for an external driver IC, reducing BOM cost and PCB area. When designing with this part, note that OTP memory is one-time programmable - code must be fully verified before production programming. For prototyping and field updates, choose the windowed (JW) or Flash (F) variants in the same family. The 68-PLCC footprint allows easy socketed programming and rework. This page synthesizes distributor pricing, drop-in alternative cross-references, and practical design notes not found in the manufacturer datasheet alone.

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

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

The Microchip Technology PIC16LC924-04I/PT is an 8-bit CMOS RISC microcontroller with integrated LCD driver, 7KB (4K x 14) of One-Time-Programmable (OTP) program memory, 176 bytes of SRAM, and 52 digital I/O pins. Operating at a 4 MHz instruction rate, it ships in a 64-pin TQFP (10x10 mm) surface-mount package and supports the PIC mid-range 16C instruction set with only 35 single-word instructions. An 8-bit microcontroller (MCU) is a small, single-chip computer built around an 8-bit data path and a Harvard-style RISC core. It belongs to the broader hierarchy: microcontroller -> embedded controller -> microprocessor-based system -> semiconductor IC. Within Microchip's portfolio, this part sits in the PIC16 mid-range family, the company's classic workhorse line optimized for low-cost, low-power, deterministic embedded control with integrated peripherals such as the on-chip LCD driver that distinguishes the 'LC92x series from generic PIC16C cousins. Key features include 4 MHz maximum operating frequency, 500 ns single-cycle instruction execution (except branches which take two cycles), 176 x 8 general-purpose SRAM registers, 13-channel 8-bit A/D converter, integrated LCD driver supporting up to 192 segments, two 8-bit timers plus one 16-bit timer, UART/SPI/I2C (SSP) serial port, and an industrial -40C to +85C operating temperature range that gives the part its 'I' industrial grade suffix. The OTP program memory allows one-time custom firmware programming for low-volume production. The device uses Microchip's RISC architecture with a 14-bit instruction word and 8-bit data bus, allowing compact code density and predictable interrupt latency. Its LCD driver includes charge pump option and software-contrast control, reducing external component BOM cost. Brown-out reset, watchdog timer, and an in-circuit serial programming (ICSP) interface round out the on-chip feature set. Typical applications include direct-drive LCD user interfaces in industrial control panels, medical instruments (blood-glucose meters, infusion pumps), consumer white goods (washing machines, microwave ovens), automotive instrument clusters, and battery-powered metering equipment. The integrated segment LCD driver eliminates external LCD controller chips, saving board area and BOM cost. When designing with this part, account for OTP memory's single-program nature - any firmware change requires a new chip - and ensure LCD bias network components match the chosen multiplex mode (static, 1/2, 1/3, or 1/4 duty). This page synthesizes Microchip datasheet specifications, current distributor pricing as of 2026-09-22, drop-in compatible alternatives, and practical design notes for engineers evaluating the PIC16LC924-04I/PT for embedded designs.

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PIC16LC924T-04I/L - 8-Bit CMOS MCU with LCD Driver | Microchip
PIC16LC924T-04I/L

PIC16LC924T-04I/L - 8-Bit CMOS MCU with LCD Driver | Microchip

The Microchip Technology PIC16LC924T-04I/L is an 8-bit CMOS microcontroller with an integrated LCD driver, 7KB (4K x 14) of One-Time Programmable (OTP) program memory, and 176 bytes of RAM, operating from a 3.0V to 5.5V supply at up to 4MHz in a 68-pin PLCC (Plastic Leaded Chip Carrier) package with J-leads. An 8-bit microcontroller (MCU) is a programmable computing IC that executes code stored in on-chip non-volatile memory and interfaces to the outside world through digital and analog peripherals. The PIC16LC924 belongs to Microchip's PIC16 family of RISC (Reduced Instruction Set Computer) microcontrollers, which sit within the broader MCU category of embedded processors, and ultimately under the semiconductor device hierarchy. The 'LC' suffix designates a low-voltage CMOS process node optimized for power efficiency at extended supply ranges. The integrated LCD driver hardware makes this part a single-chip solution for human-machine interface applications, eliminating the need for an external display controller. Key features include 52 digital I/O pins arranged across multiple ports, an integrated LCD driver supporting up to 96 segments (configurable for static, 1/2, 1/3, and 1/4 multiplex modes), 4MHz maximum oscillator frequency, ADC, USART, and standard PIC16-family peripherals including timers and a watchdog timer. The OTP memory architecture suits volume production runs where firmware is finalized and code-change flexibility is no longer required. The RISC-based Harvard architecture separates program and data memory for simultaneous fetch and access, while the low-power CMOS process delivers extended battery life in portable products. The wide 3.0V-5.5V supply tolerance bridges legacy 5V designs and modern 3.3V systems, simplifying system-level power design. Typical applications include household appliances with LCD displays (microwave ovens, washing machines, thermostats), industrial control panels, instrumentation readouts, medical device displays, and consumer electronics requiring user input/output and a small character/segment LCD panel. A key design consideration is the OTP memory's one-time programmability: once programmed, the firmware cannot be altered, so production-grade firmware must be fully validated during prototyping using a windowed (UV-erasable) or flash-based sister part such as the PIC16F-series variant before committing to the PIC16LC924T-04I/L for production. This page synthesizes distributor pricing, drop-in package alternatives, and practical design notes not found aggregated in the manufacturer datasheet.

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PIC16LC925-I/L - 8-bit PIC MCU 7KB OTP LCD Driver | Microchip
PIC16LC925-I/L

PIC16LC925-I/L - 8-bit PIC MCU 7KB OTP LCD Driver | Microchip

The Microchip Technology PIC16LC925-I/L is an 8-bit CMOS microcontroller from the PIC16C family, featuring 7KB of OTP program memory (4K x 14), 176 bytes of RAM, and an integrated LCD driver, housed in a 68-pin PLCC (J-Lead) package measuring 24.23 x 24.23 mm. Background: A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, data memory, and peripheral interfaces. The PIC16LC925 belongs to the mid-range PIC family built on a Harvard RISC architecture with separate program and data buses. PIC microcontrollers sit within the broader taxonomy of microcontrollers -> embedded microcontrollers -> CMOS microcontrollers -> 8-bit MCUs. The "LC" suffix designates a low-power CMOS variant optimized for battery-friendly operation, and this specific part integrates a segment LCD driver for direct glass connection. Key features include 52 digital I/O pins, a 20 MHz maximum clock speed, and an integrated LCD driver supporting up to 96 segments. The device operates from a 2.5V to 5.5V supply (typical 5V), includes three timers, a USART, and an analog comparator. Its instruction set is optimized for compact code density with 35 single-word instructions, most executing in a single instruction cycle. The PIC16LC925 uses a modified Harvard architecture with a 14-bit instruction word and separate 8-bit data path. The integrated LCD module features selectable bias and duty cycle configurations, charge pump option, and software-controlled contrast. In-system programming is supported via the ICSP interface, simplifying field updates. Typical applications include industrial control panels with LCD readouts, medical instrument displays, automotive dashboard sub-systems, instrumentation with character or graphic LCDs, point-of-sale terminals, and consumer appliances requiring a low-power MCU with display capability. When designing with this part, note that OTP memory cannot be reprogrammed in-circuit; ensure firmware is fully validated before blowing the OTP array. Use the ICSP header for prototype development and migrate to a Flash-based PIC16F equivalent for production flexibility. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not consolidated in the manufacturer datasheet alone.

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PIC16LC925-I/PT - 8-Bit 20MHz 7KB OTP MCU with LCD | Microchip
PIC16LC925-I/PT

PIC16LC925-I/PT - 8-Bit 20MHz 7KB OTP MCU with LCD | Microchip

The Microchip Technology PIC16LC925-I/PT is an 8-bit RISC microcontroller with an integrated LCD driver, delivering 7KB (4K x 14) of One-Time-Programmable (OTP) program memory in a 64-pin TQFP (10x10 mm) package. The device runs at up to 20MHz and is targeted at low-power embedded applications that need a built-in LCD segment driver, 176 bytes of RAM, and 52 digital I/O pins in a single chip. An 8-bit microcontroller (MCU) is a programmable single-chip computer with an 8-bit data bus; it executes instructions fetched from on-chip non-volatile memory and operates peripherals such as timers, A/D converters, communication ports and (in the PIC16LC925 case) an LCD segment driver. The PIC16LC925 sits within the broader taxonomy of microcontroller -> embedded controller -> semiconductor -> integrated circuit, and is part of Microchip's PIC16C/LC family of CMOS OTP and ROM-based microcontrollers. Key features include a Harvard-architecture RISC CPU core with a reduced instruction set optimized for compiler efficiency, an integrated LCD driver capable of driving a multiplexed segment LCD, an on-chip 8-bit A/D converter, multiple timers, a USART/SCI port, and an I2C/SPI compatible master/slave serial port. The wide operating voltage range of 2.5V to 5.5V allows both 3.3V and 5V system designs. The PIC16LC925 is implemented in CMOS technology with low-power design techniques that yield low standby current. Compared with the EPROM-windowed PIC16C925, the LC (low-power CMOS) variant is optimized for portable and battery-backed products where quiescent current and OTP cost matter more than in-circuit reprogrammability. Typical applications include human-machine interface panels with segment LCDs, industrial control front-ends, instrument cluster displays, consumer appliances with built-in displays, and any embedded design that needs a single-chip combination of CPU plus LCD driver without an external display controller. When designing with this device, plan the I/O budget carefully: 52 I/O is generous but several pins are shared with the LCD segment outputs, the A/D inputs, and the external memory interface. Always check the pinout table in the datasheet before assigning signals, and ensure your OTP programming flow is locked in before the prototype build because the PIC16LC925 cannot be re-programmed in-circuit.

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PIC16LC925T-I/PT - 8-Bit OTP MCU 7KB LCD 64-TQFP | Microchip
PIC16LC925T-I/PT

PIC16LC925T-I/PT - 8-Bit OTP MCU 7KB LCD 64-TQFP | Microchip

The Microchip Technology PIC16LC925T-I/PT is an 8-bit CMOS microcontroller from the PIC16C family that operates at up to 20 MHz and integrates an on-chip LCD driver, making it a single-chip solution for low-power human-machine interface (HMI) designs. The device is housed in a 64-pin TQFP (10x10 mm) surface-mount package, carries 7 KB of OTP program memory organized as 4K x 14 words, provides 176 bytes of data RAM, and exposes 25 digital I/O lines together with a 5-channel 10-bit ADC. The 'LC' suffix indicates a wide-voltage 2.5 V to 5.5 V core, while the 'T' suffix denotes Tape & Reel packaging and 'I/PT' indicates the industrial (-40C to +85C) temperature range. What is a PIC16 microcontroller? PIC16 is Microchip's mid-range 8-bit RISC microcontroller architecture, sitting hierarchically between the baseline PIC10/PIC12 family and the high-performance PIC18 family. PIC16C parts use one-time programmable (OTP) EPROM program memory, which is optimized for cost-sensitive, high-volume production runs where the firmware is finalized before mask/OTP programming. The 'LC' low-voltage variant extends the operating range below 3 V and is differentiated from the standard 'C' and 'F' (Flash) variants in the same pinout. Key features include a Harvard architecture with separate 14-bit program and 8-bit data paths, a hardware LCD driver that supports up to 192 segments directly (no external driver required for typical alphanumeric LCDs), a 10-bit successive-approximation ADC with five input channels, and two 8-bit timer/counters plus one 16-bit timer/counter. The instruction cycle is four oscillator clocks, giving 200 ns per instruction at 20 MHz. Brown-out reset, watchdog timer, and in-circuit serial programming (ICSP) are integrated, reducing external component count. Typical applications include consumer appliances with LCD front panels (microwave ovens, washing machines, thermostats), industrial process controllers, instrumentation with integrated keypads and displays, medical monitors with small LCD readouts, and automotive dashboard sub-modules. The wide-voltage LC core is well-matched to battery-backed designs that must continue to operate while a primary supply is removed. When designing with this device, note that OTP memory is programmed once and cannot be field-updated; for serviceable products choose the pin-compatible PIC16F family Flash variant. Adequate decoupling on VDD/AVDD and a clean low-jitter clock source are required for ADC accuracy; in high-noise environments add a small RC filter to the analog reference pin.

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PIC16LC926-I/L - 8-bit MCU, 14KB OTP, 52 I/O, LCD Driver | Microchip
PIC16LC926-I/L

PIC16LC926-I/L - 8-bit MCU, 14KB OTP, 52 I/O, LCD Driver | Microchip

The Microchip Technology PIC16LC926-I/L is a low-power 8-bit CMOS microcontroller with an integrated LCD driver, 14KB of one-time-programmable (OTP) program memory, 336 bytes of RAM, and 52 digital I/O pins. The device is housed in a 68-pin PLCC (J-Lead) package measuring 24.23x24.23 mm and executes instructions in 200 ns at a 20 MHz clock. The 'LC' prefix indicates an extended voltage range of 2.1 V to 5.5 V optimized for battery-backed and portable designs. An on-chip LCD driver supports up to 192 segments, allowing direct multiplexed glass attachment without an external controller. A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, volatile data memory, and configurable peripherals such as timers, communication interfaces, and analog blocks. The PIC16LC926 belongs to the PIC16 family of 8-bit RISC microcontrollers, which sit within the broader hierarchy of microcontrollers -> embedded controllers -> semiconductors -> integrated circuits. PIC MCUs use a Harvard architecture with a 14-bit instruction word and 35 single-word instructions, simplifying firmware development while keeping deterministic interrupt latency suitable for real-time control. Key differentiating features include the integrated LCD driver (up to 192 segments at 4 commons), five 8-bit bidirectional ports, two analog comparators, a 5-bit programmable prescaler shared with Timer0/Timer1, 14 interrupt sources, and a wide 2.1 V to 5.5 V operating range that enables single-cell Li-ion or two-AA battery operation. The 8-bit core plus 14 KB OTP make it well-suited to mid-volume applications where field programmability via ICSP is acceptable but mask-ROM NRE is not. Sleep current below 1 uA typical supports long standby times in metering and remote-sensor applications. Architecturally, the PIC16LC926 uses a 14-bit instruction word and an 8-bit data path; the OTP program memory is split into 8K x 14 words, allowing compact encoding of bit-manipulation and table-read operations. The LCD controller supports static, 1/2, 1/3, and 1/4 multiplex with software-selectable bias and frame frequency, reducing external BOM. Two analog comparators share reference levels with the on-chip LCD bias generator, allowing simple battery-monitor and signal-conditioning interfaces without external op-amps. Typical applications include metering and instrumentation (electricity/gas/water meters with LCD readout), consumer white goods with LCD user interfaces, medical devices requiring low standby current, industrial control panels, and remote sensor nodes with battery-powered displays. The combination of 52 I/O, 14 KB code space, integrated LCD, and 2.1 V minimum VDD addresses legacy designs where a single MCU must drive both logic and a segment display. When designing with this device, ensure the LCD bias and segment/commons pin assignments are planned before PCB layout because most pins have a fixed LCD mapping. Place a 0.1 uF decoupling capacitor within 5 mm of VDD/AVSS and route the oscillator traces short. The OTP memory cannot be erased; use the flash PIC16LF1902 family for development or in-circuit reprogrammability. This page synthesizes distributor pricing, drop-in PIC16LC926 alternatives, parametric differences across the PIC16C/LC/LF families, and practical design notes not collected in the manufacturer datasheet.

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PIC16LC926-I/PT - 8-bit 20MHz 14KB OTP MCU 64-TQFP | Microchip
PIC16LC926-I/PT

PIC16LC926-I/PT - 8-bit 20MHz 14KB OTP MCU 64-TQFP | Microchip

The Microchip Technology PIC16LC926-I/PT is a CMOS OTP-based 8-bit PIC16-family microcontroller that integrates an on-chip LCD driver, designed for low-power human-machine interface applications. It executes one instruction every 200 ns at 20 MHz and is offered in a 64-pin TQFP (PT, 10x10 mm) package with 14 KB (8K x 14) of program memory and 336 bytes of data RAM. The 'LC' variant operates from a 2.5V to 5.5V supply, and the 'I' suffix indicates an industrial -40C to +85C operating range. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (ROM/Flash/OTP), working RAM, and a rich set of peripheral interfaces. Within the broader taxonomy, PIC16C/LC926 sits in the 8-bit MCU tier -> RISC microcontroller -> embedded controller -> semiconductor IC. The on-chip LCD driver is what differentiates this family from generic PIC16C devices, allowing direct segment driving of up to a 4x32 or 8x28 LCD glass without an external charge-pump or segment driver. Key features include 52 digital I/O lines, an integrated LCD driver supporting multiplexed displays, 8-bit A/D converter inputs (per family datasheet), 14 KB OTP program memory, 336 bytes of RAM, and three timer/counter modules (Timer0, Timer1, Timer2). The device also offers a synchronous serial port (SSP) for SPI/I2C, a USART, a watchdog timer with its own on-chip RC oscillator, and in-circuit serial programming (ICSP) for field firmware updates via two pins. Architecturally, the PIC16LC926 uses the enhanced PIC16C core with a 14-bit instruction word and Harvard bus structure (separate program and data paths), which is why the OTP is sized 8K x 14. The 'LC' CMOS process yields low power consumption (typical < 2 mA at 5V/20MHz, < 20 uA in sleep) compared with the older 'C' EPROM versions, while preserving instruction-set compatibility with PIC16C926 for code reuse. Typical applications include industrial control panels with LCD readouts, metering (electricity/gas/water), consumer appliances with segment displays, medical devices (blood-pressure monitors, glucometers), automotive dashboard clusters (auxiliary, non-safety), and point-of-sale terminals. The integrated LCD driver eliminates the need for an external HT1621 or similar segment-driver chip, reducing BOM cost and PCB area. When designing with the PIC16LC926-I/PT, note that OTP memory is one-time programmable and cannot be erased; prototypes should use the windowed CERDIP PIC16C926 or the Flash-based PIC16F946 for development. Use the on-chip ICD pins (RB6/RB7) for in-circuit debugging, and place 100 nF decoupling on every VDD/VSS pair close to the package.

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PIC16LC926T-I/L - 8-Bit 20MHz 14KB OTP LCD MCU | Microchip
PIC16LC926T-I/L

PIC16LC926T-I/L - 8-Bit 20MHz 14KB OTP LCD MCU | Microchip

The Microchip Technology PIC16LC926T-I/L is an 8-bit CMOS PIC16C-family microcontroller with integrated LCD driver, delivering up to 20 MHz operation, 14 KB of one-time-programmable (OTP) program memory (8K x 14 words), and 336 bytes of general-purpose RAM, housed in a 68-pin PLCC (24.23 x 24.23 mm) package. The "LC" voltage-class designation supports low-voltage operation from approximately 2.5 V to 6.0 V, while the "T" suffix indicates tape-and-reel packaging and "I/L" denotes the industrial temperature range (-40 C to +85 C) on the PLCC surface-mount lead form. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, RAM, peripherals, and I/O into one device. The PIC16LC926 belongs to the mid-range PIC family, sitting in the 8-bit MCU segment of the broader embedded semiconductor hierarchy: microcontroller -> embedded processor -> semiconductor device. Within Microchip's portfolio it is part of the LCD-driver equipped PIC16LC9xx line designed for human-machine interface (HMI) applications such as metering, instrumentation, white goods, and consumer appliances. Key features include an on-chip LCD driver with up to 192 segment support, a 10-bit successive-approximation Analog-to-Digital Converter (ADC), a USART for asynchronous serial communication, two 8-bit timers and one 16-bit timer, an SSP module for SPI and I2C, and a brown-out detect / power-on reset block. The device uses a 14-bit instruction word and a Harvard architecture with separate program and data buses, allowing single-cycle instruction execution except for program branches. Typical applications include electronic utility meters with multi-digit LCD readouts, medical devices such as blood-pressure monitors and glucose meters, point-of-sale terminals, white-goods control panels, industrial process displays, and any battery- or line-powered HMI requiring integrated segment-LCD driving without an external driver IC. When designing with this part, allocate the PLCC land pattern (JEDEC MO-047) carefully because the through-hole PLCC socket allows easy prototyping but requires a different footprint than the TQFP variant. Plan I/O pin assignments early, since the LCD segment pins are multiplexed with digital I/O and cannot be reassigned arbitrarily. This page consolidates distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC16LC926T-I/PT - 8-bit LCD MCU 14KB OTP 20MHz TQFP-64 | Microchip
PIC16LC926T-I/PT

PIC16LC926T-I/PT - 8-bit LCD MCU 14KB OTP 20MHz TQFP-64 | Microchip

The Microchip Technology PIC16LC926T-I/PT is an 8-bit CMOS microcontroller based on the PIC16C core with an integrated LCD driver, 14KB (8K x 14) of One-Time-Programmable (OTP) program memory, 336 bytes of RAM, and a 20MHz maximum operating frequency, supplied in a 64-pin TQFP package on tape-and-reel. The 'LC' suffix indicates the 2.5V to 5.5V low-voltage operating range, while the 'I' suffix denotes the industrial -40C to +85C temperature range, and the 'PT' package code marks the plastic TQFP-64 footprint (10mm x 10mm body). An 8-bit PIC microcontroller (often called MCU or microcontroller unit) is a single-chip computer integrating a CPU core, program memory, RAM, peripheral set, and I/O on one die; it sits inside the broader taxonomy of embedded microcontrollers -> microprocessors -> semiconductors, and is the canonical choice for low-power, deterministic control tasks where a Cortex-M or DSP would be over-specified. Key features include 25 digital I/O lines, an integrated LCD driver capable of up to 4 common x 32 segment duty-multiplexed panel control, a 10-bit 5-channel analog-to-digital converter, two 8-bit timers plus one 16-bit timer, a watchdog timer (WDT), brown-out reset (BOR), power-on reset (POR), I2C and SPI synchronous serial ports, and PWM with capture/compare capability. The device is fabricated on Microchip's mature OTP CMOS process and uses an external oscillator reference for system clocking. The architecture pairs a 14-bit wide instruction word with a Harvard bus layout, allowing most instructions to execute in one instruction cycle and yielding strong deterministic interrupt response - a property valued in appliance, metering, and instrumentation firmware. Five channels of 10-bit ADC suit sensor front-ends for temperature, voltage, and current monitoring, while the LCD driver eliminates the need for an external charge-pump or segment-driver ASIC. Typical applications include white-good and appliance user-interface panels, electronic utility meters, portable medical instruments with segment LCDs, automotive dashboard sub-displays (non-safety), and industrial HMI controllers. The combination of LCD driver, ADC, and moderate I/O count on one die makes it attractive for cost-sensitive human-machine-interface nodes. When designing in this MCU, confirm oscillator selection matches the application: a 20MHz crystal is required for full-speed operation and the PLL is not used. Reserve one I/O line for the MCLR reset function and ensure the BOR level is configured for the actual supply rail. Program OTP devices in volume using a gang programmer, since OTP cannot be erased in-circuit. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet alone, giving procurement and embedded engineers a faster path to selection and qualification.

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PIC16LCE623-04/P - 8-bit MCU, 896B OTP, 4MHz, 18-DIP | Microchip
PIC16LCE623-04/P

PIC16LCE623-04/P - 8-bit MCU, 896B OTP, 4MHz, 18-DIP | Microchip

The Microchip Technology PIC16LCE623-04/P is an 8-bit CMOS microcontroller based on the PIC16C family core, offering 896 bytes of One-Time-Programmable (OTP) program memory in an 18-pin PDIP through-hole package. It operates at a maximum clock speed of 4 MHz from a 2.5 V to 5.5 V supply and integrates 96 bytes of SRAM data memory with 13 general-purpose digital I/O pins. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, and peripheral I/O into one package. Within the broader product hierarchy, the PIC16LCE623 belongs to the 8-bit microcontroller category, which itself sits under the microcontrollers segment of integrated circuits (ICs). The PIC16C/PIC16LC architecture uses a RISC-style instruction set with only 35 single-word instructions and an 8-level hardware stack, enabling deterministic real-time control in cost-sensitive embedded designs. Key features include the PIC16 mid-range 14-bit instruction word, 200 ns instruction cycle time at 4 MHz, an external oscillator interface, an integrated 8-bit timer/counter with optional prescaler, and a programmable watchdog timer. The "LCE" family designation indicates the low-power, OTP-programmable, extended-temperature variant, optimized for battery-powered and industrial environments where field-programmability and low quiescent current are valuable. The PIC16LCE623-04/P uses the Enhanced Mid-Range Harvard architecture with separate program and data buses, allowing instruction fetch and operand access in a single cycle. The 4 MHz maximum clock and 13 I/O make it a fit for simple sensing, control, and user-interface tasks. Designers should note that OTP parts are one-time programmable only and cannot be re-programmed in-circuit, which is a deliberate trade-off for low unit cost. Typical applications include appliance control, sensor signal conditioning, low-speed serial communication bridges, and battery-powered instruments. The wide 2.5 V to 5.5 V operating range allows direct connection to single-cell Li-ion or two-AA battery stacks, eliminating boost converters in simple nodes. When designing with this device, route the MCLR/VPP reset line and the two-decimal decouple VDD/VSS pair as close to the package pins as possible. Verify that any OTP programmer you select supports the PIC16LC6xx device ID 0x1060 before laying out the prototype. This page synthesizes distributor pricing, pin-compatible alternatives from Microchip's PIC16LC family, and practical design notes not collected in any single manufacturer datasheet or distributor listing.

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