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PIC16LC622-04/SS - 4MHz 8-bit OTP MCU 3.5KB | Microchip
PIC16LC622-04/SS

PIC16LC622-04/SS - 4MHz 8-bit OTP MCU 3.5KB | Microchip

The Microchip Technology PIC16LC622-04/SS is a low-power 8-bit CMOS microcontroller based on the PIC16C family RISC architecture, delivering 4 MHz maximum clock speed, 3.5 KB of OTP program memory (2K x 14), and 128 bytes of RAM in a 20-pin SSOP package. It operates from a 2.5V to 6.25V supply rail and exposes 13 digital I/O lines for general-purpose use, making it suitable for cost-sensitive embedded control in commercial temperature grades. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, RAM, and peripheral interfaces into one IC. Within the broader semiconductor taxonomy, an 8-bit MCU like the PIC16LC622 sits below 16-bit and 32-bit MCUs in computational capability but excels in deterministic real-time response, ultra-low power, and low unit cost. It belongs to the power management and embedded control hierarchy of mixed-signal semiconductors, often deployed as the decision-making core of consumer appliances, sensor nodes, and battery-powered instruments. Key features of the PIC16LC622-04/SS include 12-bit wide instructions, an 8-bit wide data path, seven or eight special-function hardware registers, a two-level deep hardware stack, and direct/indirect/relative addressing modes. It also integrates a watchdog timer, power-on reset, and brown-out detect for embedded robustness. The '04' suffix indicates a 4 MHz maximum oscillator frequency, while the 'SS' suffix denotes the 20-pin SSOP (Shrink Small Outline Package). Architecturally, the device uses Microchip's classic RISC core with a single accumulator (W register) and a Harvard-style memory map separating program and data spaces. The OTP (One-Time Programmable) memory provides non-volatile code storage at the lowest die cost, contrasting with flash-based 'F' variants. Its CMOS design keeps quiescent current low enough to operate from batteries, and the SSOP-20 footprint is among the smallest 20-pin PIC packages, enabling compact PCB designs. Typical applications include remote-control transmitters, small appliance controllers, LED lighting drivers, simple sensor interfaces, and battery-powered consumer devices. The PIC16LC622-04/SS is also commonly used in educational development boards and as a baseline 8-bit platform for learning embedded C or assembly. When designing with this part, note that the OTP memory cannot be reprogrammed; for prototyping, prefer the flash-based PIC16F equivalent (e.g., PIC16F627/628). The 4 MHz speed is suitable for bit-banged protocols and slow UART up to ~9600 baud, but reserve higher-speed tasks for parts with USART hardware. Always include proper decoupling and follow Microchip's ICD programming pinout for in-circuit debug where applicable. This page synthesizes distributor pricing, OTP/Flash drop-in alternatives, and practical design notes not found in the standalone Microchip datasheet, helping engineers select the right variant for new designs and legacy maintenance.

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PIC16LC622-04E/P - 4MHz 8-Bit CMOS MCU, 3.5KB OTP | Microchip
PIC16LC622-04E/P

PIC16LC622-04E/P - 4MHz 8-Bit CMOS MCU, 3.5KB OTP | Microchip

The Microchip PIC16LC622-04E/P is an EPROM-based 8-bit CMOS microcontroller from the PIC16C family, delivering 4 MHz CPU performance with 3.5 KB (2K x 14) of One-Time-Programmable (OTP) program memory in an 18-pin PDIP through-hole package. It operates from a 2.5 V to 6.0 V supply and supports the industrial temperature range of -40 °C to +125 °C, making it suitable for ruggedized environments and long-lifecycle industrial systems. The device features a RISC architecture with only 35 single-cycle instructions (200 ns instruction cycle at 4 MHz) and a two-level deep hardware stack. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (ROM/RAM), and programmable I/O peripherals. The PIC16LC622 belongs to the 8-bit microcontroller family -> CMOS microcontroller -> embedded controller -> semiconductor hierarchy. The "LC" prefix designates the low-power CMOS variant of the PIC16C62x series, optimized for battery-friendly operation. The device uses Harvard architecture with 12-bit wide instructions and an 8-bit data path, and offers direct, indirect, and relative addressing modes with seven or eight special-function hardware registers. Key features include 12 general-purpose I/O pins capable of driving LED loads directly, on-chip power-on reset, watchdog timer, brown-out reset (on some variants), and an 8-bit timer/counter. The OTP program memory allows factory or one-time field programming, which is useful for low-volume or fixed-function production runs where in-system reprogrammability is not required. Compared to flash-based PIC16F parts, the OTP C-variant is typically lower cost per unit at higher volumes but cannot be re-programmed in-circuit. Typical applications include industrial automation controllers, consumer electronics front panels, motor control interfaces, HVAC thermostat logic, and legacy replacement of older PIC16C62x designs. The wide 2.5 V–6.0 V supply range simplifies integration into both 3.3 V and 5 V rails without level shifting. The 04 speed grade indicates 4 MHz maximum clock; the "E" suffix denotes the extended industrial temperature range. When designing with this part, ensure that the program memory type (OTP vs Flash) matches the production programming model, since OTP parts cannot be reprogrammed in-circuit. For new designs, consider the pin-compatible flash-based PIC16F628 or PIC16F84A family for in-system reprogrammability; the LC622 is generally preferred as a long-lifecycle drop-in for legacy systems. Decoupling capacitors (100 nF) should be placed within 5 mm of VDD/VSS pins, and unused I/O should be configured as outputs low to minimize current draw.

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PIC16LC622-04E/SO - 8-Bit 4MHz 3.5KB OTP MCU 18-SOIC | Microchip
PIC16LC622-04E/SO

PIC16LC622-04E/SO - 8-Bit 4MHz 3.5KB OTP MCU 18-SOIC | Microchip

The Microchip Technology PIC16LC622-04E/SO is an 8-bit CMOS microcontroller from the PIC 16C family, offering 4 MHz CPU clock, 3.5 KB (2K x 14) One-Time Programmable (OTP) program memory and 128 bytes of RAM in an 18-pin SOIC (SO) surface-mount package. The device is designed for low-voltage embedded control and operates from a 2.5 V to 6.25 V supply, suiting battery-powered and 5 V industrial designs alike. A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, working RAM, and peripheral I/O on one die. PIC microcontrollers use a RISC Harvard architecture with a separate program and data bus, which simplifies instruction fetching and lets the core execute most instructions in a single clock cycle. The PIC16C/LC62x family specifically targets cost-sensitive applications with moderate code size (2K-4K instructions) and a small 18-pin footprint, sitting below the larger PIC16C7x family in Microchip's lineup. Key features of the PIC16LC622 include a 12-bit instruction word with an 8-bit data path, a two-level hardware stack, seven or eight special-function hardware registers, and 12 digital I/O pins. Peripherals include a watchdog timer, power-on reset, brown-out reset, and a Capture/Compare/PWM (CCP) module. The 4 MHz oscillator supports a 1 microsecond instruction cycle, which is sufficient for slow control applications such as appliance control, sensor interfaces, and simple human-machine interface logic. Typical applications for the PIC16LC622-04E/SO include low-cost remote controls, small sensor nodes, automotive body controllers, security peripherals, and any 5 V embedded design where cost-per-unit is the primary driver and on-chip flash is not required. The 18-SOIC package is widely accepted by assembly lines and supports hand-solder rework for prototypes. When migrating designs to flash-based parts, designers typically transition to the PIC16F62x family, which adds in-circuit serial programming and many additional peripherals while keeping the same 18-pin footprint. Always verify pin compatibility on a per-pin basis because some peripherals are mapped differently between OTP and flash variants.

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PIC16LC622-04E/SS - 4MHz 8-Bit EPROM MCU 20-SSOP | Microchip
PIC16LC622-04E/SS

PIC16LC622-04E/SS - 4MHz 8-Bit EPROM MCU 20-SSOP | Microchip

The Microchip Technology PIC16LC622-04E/SS is an EPROM-based 8-bit CMOS microcontroller from the PIC16C family, delivering 4 MHz core speed in a 20-pin SSOP package. The device integrates 3.5 KB (2K x 14) of One-Time Programmable (OTP) program memory, 128 bytes of data RAM, and 13 general-purpose I/O pins. Operating from a 2.5 V to 6.25 V supply, the part is engineered for low-power embedded control in commercial and industrial environments. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (ROM/EPROM/flash), data RAM, and peripheral I/O on one die, executing instructions stored in non-volatile memory and manipulating variables in scratchpad RAM. The PIC16C/LC family sits in the broader taxonomy: 8-bit microcontroller -> microcontroller -> embedded processor -> semiconductor IC. The 'LC' variant denotes the low-voltage CMOS process, optimized for battery and energy-constrained applications where the standard PIC16C would exceed its minimum VDD. Key features include 35 single-cycle instructions with 200 ns instruction cycle time at 20 MHz oscillator, a two-level deep hardware stack, and direct/indirect/relative addressing. Integrated peripherals comprise Brown-out Detect/Reset (BOD), Power-On Reset (POR), and Watchdog Timer (WDT) with its own on-chip RC oscillator for reliable operation without external supervision. Seven or eight special-function hardware registers give the part the deterministic interrupt response that defines PIC architecture. Architecturally, the PIC16LC622 uses a 12-bit wide instruction word and an 8-bit data path with a Harvard topology that fetches instruction and data in a single cycle, which is the source of its 200 ns cycle performance at 20 MHz. The OTP EPROM memory allows factory or field programming for small-to-medium volume production where flash reprogrammability is not required. Typical applications include low-power remote sensors, automotive body electronics, appliance controls, security keypads, and simple human-machine interface panels where deterministic response, low quiescent current, and small footprint outweigh the absence of in-system reprogrammability. When designing with this part, ensure VDD decoupling of 100 nF close to the pin, and note that the OTP windowed ('JW') package variant must be exposed to UV for erase - production boards should specify the OTP-only SSOP variant. The 'E' suffix denotes the industrial operating temperature range. This page synthesizes distributor stock data, same-package drop-in alternatives (including the PIC16LC622A upgrade), and practical design notes not found in the standalone manufacturer datasheet.

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PIC16LC622-04I/P - 4MHz 8-Bit CMOS MCU, 3.5KB OTP | Microchip
PIC16LC622-04I/P

PIC16LC622-04I/P - 4MHz 8-Bit CMOS MCU, 3.5KB OTP | Microchip

The Microchip Technology PIC16LC622-04I/P is an 8-bit CMOS EPROM-based microcontroller (MCU) belonging to the PIC® 16C family, operating at up to 4 MHz clock speed with 3.5 KB (2K x 14) of One-Time-Programmable (OTP) program memory, 128 bytes of RAM, and 13 I/O pins, housed in a 18-pin PDIP (0.300 inch, 7.62 mm) through-hole package. An 8-bit microcontroller is a single-chip computer built around an 8-bit data path, integrating a CPU, RAM, non-volatile program memory, and peripherals such as timers, interrupts, and I/O ports on a single die. The PIC16LC622 sits within the broader taxonomy as: microcontroller -> 8-bit MCU -> PIC16 family -> PIC16C sub-family -> CMOS EPROM-based device -> semiconductor IC. This LC variant is the low-power CMOS process version (vs. the PIC16C622 EPROM die), typically offering wider operating voltage and lower quiescent current than the original PIC16C62x parts. Key features of the PIC16LC622-04I/P include 12-bit wide instructions, an 8-bit wide data path, seven or eight special-function hardware registers, a two-level deep hardware stack, and direct, indirect, and relative addressing modes. The '04' speed grade indicates 4 MHz maximum oscillator input, and the 'I' suffix denotes the industrial temperature range of -40 °C to +85 °C. Supply voltage is specified at 2.5 V to 6.25 V, enabling operation from two or three alkaline cells up to a regulated 5 V rail. Architecturally, the PIC16LC622 is built on Microchip's classic Harvard RISC core, which fetches instructions from program memory on a separate bus from data, allowing most instructions to execute in a single instruction cycle (4 oscillator clocks). The OTP program memory means the firmware is permanently written once at programming time and cannot be electrically erased, making this part a cost-optimized choice for mature, stable production designs rather than iterative prototyping. Typical applications include low-power and cost-sensitive embedded control such as consumer appliances, automotive body electronics (interior lighting, seat controllers, small sensor interfaces), industrial control (sensor signal conditioning, simple closed-loop control), battery-powered instrumentation, and remote-control transmitters. The 13 I/O pins are sufficient for driving LEDs, reading buttons, communicating via UART or I²C through software bit-banging, and interfacing low-speed analog signals. When designing with this device, ensure the chosen oscillator or resonator is within the 4 MHz maximum and that decoupling capacitors are placed close to VDD/VSS pins. Because OTP parts cannot be re-programmed, developers typically use a windowed (JW) or flash equivalent for code development and switch to the OTP 'P' (PDIP) variant for production runs.

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PIC16LC622-04I/SO - 8-bit OTP MCU, 4MHz, 18-SOIC | Microchip
PIC16LC622-04I/SO

PIC16LC622-04I/SO - 8-bit OTP MCU, 4MHz, 18-SOIC | Microchip

The Microchip PIC16LC622-04I/SO is an EPROM-based 8-bit CMOS microcontroller from the PIC16C family, operating at up to 4 MHz with a 200 ns instruction cycle. It integrates 3.5KB (2K x 14) of OTP program memory and 128 bytes of RAM, has 13 I/O pins, and is housed in an 18-pin SOIC package. An 8-bit microcontroller (MCU) is a single-chip computer that contains a CPU, RAM, non-volatile program memory (ROM/EPROM/Flash), and I/O peripherals on one die. The PIC16C family represents Microchip's classic mid-range architecture, with the PIC16LC622 positioned between the smaller PIC16C55x/56x and the larger PIC16C6x/7x devices, offering a balance of OTP memory size and I/O capability. The 'L' prefix indicates a low-voltage (2.5V-6.25V) CMOS part suitable for battery-powered and 3.3V/5V mixed systems. Key features of the PIC16LC622-04I/SO include 35 single-cycle instructions (only program branches are two-cycle), a 12-bit-wide instruction word with an 8-bit-wide data path, seven or eight special-function hardware registers, a two-level deep hardware stack, and direct, indirect, and relative addressing modes. The 4 MHz clock input and 200 ns instruction cycle enable deterministic control loop execution. The 'I' suffix denotes the industrial temperature grade (-40C to +85C), and the /SO suffix denotes the surface-mount 18-pin SOIC package. The internal architecture combines a Harvard-style separate program and data buses, a precision 4 MHz internal oscillator option (depending on configuration), and built-in peripherals such as timers and a watchdog timer. Compared with later PIC16F Flash parts, the PIC16LC622 uses one-time-programmable (OTP) EPROM, which is appropriate for low-volume production or mature production runs where code stability outweighs in-field reprogrammability. Typical applications include industrial control logic, low-cost consumer appliance controllers, sensor signal pre-processing, simple motor-control sequencers, and legacy system retrofits that require pin-compatibility with earlier PIC16C sockets. The 2.5V-6.25V supply range supports operation directly from a 3.3V regulated rail or from a 5V USB/BUS supply. When designing with this device, ensure the OTP program memory is programmed before final PCB assembly in production, since OTP parts cannot be re-programmed in-circuit. For new designs where in-field firmware updates may be required, prefer a Flash-based PIC16F equivalent such as the PIC16F648A or PIC16F88, which use the same mid-range instruction set and offer similar peripheral sets with re-programmability.

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PIC16LC622A-04E/P - 4MHz 8-Bit OTP MCU, 3.5KB EPROM | Microchip
PIC16LC622A-04E/P

PIC16LC622A-04E/P - 4MHz 8-Bit OTP MCU, 3.5KB EPROM | Microchip

The Microchip Technology PIC16LC622A-04E/P is a low-power, EPROM-based 8-bit CMOS microcontroller in the PIC16C family, offering 4MHz maximum clock speed, 3.5KB (2K x 14) of One-Time Programmable program memory, 128 bytes of RAM, and 13 general-purpose I/O pins in an 18-pin PDIP package. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (ROM/EPROM/Flash), data memory (RAM), and configurable peripheral I/O. MCUs fall within the broader taxonomy of embedded processors -> microcontrollers -> 8-bit microcontrollers -> CMOS microcontrollers -> EPROM-based microcontrollers. The PIC16LC622A belongs to Microchip's PIC16C mid-range family, designed for cost-sensitive embedded control applications where code is finalized in production and re-programming is not required. Key features include a 12-bit wide instruction set with 8-bit wide data path, single-cycle instruction execution (200ns at 20MHz, with a 4MHz grade offered here), 35 single-word instructions to learn, a two-level deep hardware stack, and seven or eight special function hardware registers. The device supports direct, indirect, and relative addressing modes, runs from a 2.5V to 6.25V supply, and is targeted at the automotive operating range. Architecture-wise, the PIC16LC622A employs a RISC-based Harvard architecture with separated program and data buses, allowing simultaneous instruction fetch and data access. Its EPROM program memory is windowed for prototype erasure, supporting iterative development before OTP production programming. The 4MHz grade corresponds to a 1us instruction cycle when using the internal oscillator divider chain. Typical applications include automotive body controllers, simple sensor interfaces, low-speed communication bridges, and industrial control logic where field-programmability is unnecessary. The 18-pin PDIP through-hole package supports breadboard prototyping and legacy board designs. When designing with this part, note that the 'E' suffix indicates the extended automotive temperature range (-40C to +125C), and the '04' suffix denotes the 4MHz speed grade. EPROM-based PICs require UV erasure for reprogramming, so choose PIC16F-series Flash parts if in-field updates are required. This page synthesizes distributor pricing from DigiKey and Octopart, pin-compatible PIC16C-family alternatives, and practical design notes not consolidated in the manufacturer datasheet alone.

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PIC16LC622A-04E/SO - 8-bit 4MHz OTP MCU 3.5KB | Microchip
PIC16LC622A-04E/SO

PIC16LC622A-04E/SO - 8-bit 4MHz OTP MCU 3.5KB | Microchip

The Microchip Technology PIC16LC622A-04E/SO is an 8-bit EPROM/OTP-based CMOS microcontroller from the PIC16C family, operating at 4 MHz with 3.5 KB (2K x 14) of program memory, 128 bytes of RAM, and 13 I/O pins, packaged in an 18-pin SOIC. According to the manufacturer datasheet, the device executes 35 single-cycle instructions at 200 ns per cycle (except program branches which are two-cycle), supports 3.3V/5V operation, and integrates brown-out detection and a watchdog timer for enhanced system reliability in embedded applications. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (ROM/EPROM/Flash), data RAM, I/O peripherals, and timers onto one die. MCUs sit at the bottom of the compute hierarchy above discrete logic but below microprocessors (MPUs) and microcontrollers with embedded radios (SoCs). The PIC16C family uses a RISC-style Harvard architecture that delivers deterministic instruction timing and very low power consumption, making this category ideal for cost-sensitive, real-time, and battery-powered embedded designs. Key features include 13 bidirectional I/O pins with individual direction control, a 4 MHz maximum clock input, on-chip oscillator support (RC and crystal modes), a programmable watchdog timer with on-chip RC oscillator, power-saving SLEEP mode, and an operating voltage range compatible with both 3.3V and 5V rails. The 18-SOIC package provides a 7.50 mm body width with a 0.295 inch lead pitch suitable for hand-solderable prototyping as well as high-volume SMT production. Architecturally, the PIC16LC622A uses a 14-bit instruction word with an 8-bit data path, providing a code density advantage over many 8-bit competitors. The integrated brown-out reset (BOR) circuitry holds the MCU in reset when VDD falls below a programmable threshold, preventing code corruption from indeterminate supply voltage. The 35-instruction RISC core enables rapid development since most applications can be written using only a subset of the instruction set. Typical applications include appliance control, automotive body electronics, industrial sensor interfaces, remote controls, security and alarm panels, and low-cost consumer electronics. The combination of OTP program memory (cost-optimized for production) and wide voltage tolerance makes this part particularly attractive for high-volume, fixed-function devices where software is finalized and code security is required. When designing with this part, ensure that the MCLR (master clear) pin has a proper pull-up network for reliable reset behavior and that decoupling capacitors (100 nF ceramic plus bulk) are placed within a few millimeters of the VDD pin. The E suffix denotes the extended industrial temperature grade (-40C to +125C), which must be respected when specifying this part for harsh-environment deployments. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet, providing an information-gain view for procurement and engineering teams.

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PIC16LC622A-04E/SS - 4MHz 8-bit OTP MCU 3.5KB | Microchip
PIC16LC622A-04E/SS

PIC16LC622A-04E/SS - 4MHz 8-bit OTP MCU 3.5KB | Microchip

The Microchip Technology PIC16LC622A-04E/SS is an EPROM-based 8-bit CMOS microcontroller from the PIC16C family, delivering 4 MIPS performance at 4 MHz maximum clock speed. It integrates 3.5 KB of One-Time Programmable (OTP) program memory organized as 2K x 14 words and 128 bytes of data RAM, packaged in a 20-pin SSOP (Shrink Small Outline Package) suitable for space-constrained surface-mount designs. The device supports 13 general-purpose digital I/O pins and operates from a 2.5 V to 5.5 V supply rail, with an LC (low-power CMOS) process variant optimized for battery-sensitive applications. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, data RAM, and peripheral interfaces on one die. Within the broader taxonomy, PIC microcontrollers sit under the microcontrollers hierarchy, which itself belongs to integrated circuits and semiconductor devices. The PIC16C family specifically uses a Harvard RISC architecture with separate program and data buses, 12-bit or 14-bit wide instructions, and an 8-bit data path, enabling deterministic instruction execution in a single cycle except for program branches. Key features of the PIC16LC622A-04E/SS include a two-level deep hardware stack, direct/indirect/relative addressing modes, seven or eight special-function hardware registers, and an integrated watchdog timer for reliable operation in electrically noisy environments. The wide 2.5 V to 5.5 V supply range allows direct connection to 3.3 V and 5 V rails without level translation, while the -40 °C to +125 °C automotive operating range qualifies it for harsh-environment deployments. The LC process variant is engineered for low-power operation, drawing microamp-range supply current in sleep mode, which is critical for battery-powered or energy-harvesting endpoints. Its OTP program memory is one-time programmable but retains firmware permanently, providing field security without external memory components. The 20-pin SSOP package reduces board area versus the 28-pin and 40-pin PIC16 siblings while preserving the core peripheral set. Typical applications include low-power embedded control nodes, automotive body electronics, sensor signal conditioning, appliance control boards, and simple user-interface controllers. It is also well suited to industrial monitoring and remote-control subsystems that demand a small footprint and a wide supply tolerance. Designers should note that the OTP memory cannot be reprogrammed, so a flash-based PIC16F equivalent is preferred for prototyping and field-updateable deployments.

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PIC16LC622A-04I/SS - 8-bit PIC MCU 3.5KB OTP 20-SSOP | Microchip
PIC16LC622A-04I/SS

PIC16LC622A-04I/SS - 8-bit PIC MCU 3.5KB OTP 20-SSOP | Microchip

The Microchip Technology PIC16LC622A-04I/SS is an EPROM-based 8-bit CMOS microcontroller from the PIC16C family, delivering 4 MHz CPU performance with 3.5 KB (2K x 14) of One-Time-Programmable (OTP) program memory in a 20-pin SSOP package. The device features a RISC architecture with only 35 single-cycle instructions (200 ns instruction cycle at 20 MHz max clock input), 128 bytes of RAM, and 13 digital I/O pins. It operates from a 2.5 V to 6.25 V supply, drawing very low quiescent current suitable for line-powered and battery-backed designs. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, and peripheral I/O onto one piece of silicon. Within the broader taxonomy, the PIC16C622A sits in the 8-bit MCU class, under the PIC16 mid-range family, within Microchip's PIC microcontroller portfolio. The 'LC' prefix indicates the low-power CMOS process variant, optimized for low operating current and extended power-rail tolerance, while the 'A' suffix denotes the enhanced silicon revision offering 2 KB of program memory (versus 1 KB on the original PIC16C622) and eight-level hardware stack. Key features include a two-level hardware stack (the 'A' revision extends to eight levels), direct/indirect/relative addressing modes, 12-bit-wide instructions with an 8-bit-wide data path, an integrated power-on reset, watchdog timer, and a brown-out detect circuit. The device supports both internal and external oscillator modes and includes a capture/compare/PWM module plus an 8-bit timer/counter, enabling timer-driven sequencing, event capture, and pulse-width-modulated outputs. The industrial-grade 'I' temperature range covers -40°C to +85°C. Typical applications span consumer appliance controllers, simple sensor signal conditioning front-ends, low-cost remote controls, automotive interior modules (non-safety), battery chargers, and general-purpose embedded control where deterministic single-cycle instruction execution and a minimal instruction set are valued. The wide 2.5 V to 6.25 V supply tolerance also makes the part practical for 3.3 V and 5 V mixed-rail systems. Designers should plan for a brown-out-reset capacitor on the MCLR/Vpp pin and account for the 200 ns instruction cycle when computing loop timing. Because the part is OTP, firmware must be fully validated before programming. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes that complement the manufacturer datasheet.

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PIC16LC622AT-04/SO - 8-bit OTP MCU, 3.5KB, 4MHz | Microchip
PIC16LC622AT-04/SO

PIC16LC622AT-04/SO - 8-bit OTP MCU, 3.5KB, 4MHz | Microchip

The Microchip Technology PIC16LC622AT-04/SO is an 8-bit RISC microcontroller from the PIC16C family with 3.5KB (2K x 14) of One-Time Programmable (OTP) program memory and 128 bytes of RAM, housed in an 18-pin SOIC (SO) package. Operating from a 2.5V to 6.0V supply at a 4MHz clock, the device targets low-power, deterministic embedded designs requiring small memory footprint and thirteen general-purpose I/O pins. A microcontroller (MCU) is a single-chip computer integrating a CPU core, program memory, working RAM, and peripheral I/O onto one die. The PIC16C family uses Microchip's enhanced Harvard RISC architecture, where program and data buses are physically separated, allowing instruction fetch to occur in parallel with operand reads and giving deterministic interrupt response. PIC microcontrollers belong to the broader class of 8-bit embedded microcontrollers within the semiconductor hierarchy of integrated circuits, and they are widely adopted in commercial and industrial control applications for their simple toolchain and low system cost. Key features include thirteen digital I/O pins, two 8-bit timers with optional 16-bit mode, a Watchdog Timer with on-chip RC oscillator, power-on reset, power-saving SLEEP mode, and an internal/external oscillator select. The 'LC' suffix denotes the low-voltage CMOS process, while the 'A' indicates the silicon revision and the 'T' indicates tape-and-reel packaging. The '04' speed grade corresponds to the 4MHz oscillator limit. The OTP program memory allows one-time programming during production. Architecture depth: the PIC16C62x devices implement a 14-bit instruction word with an 8-level hardware stack, supporting direct, indirect, and relative addressing modes. Brown-out Reset and Power-on Reset are integrated. The I/O ports are bidirectional with weak pull-up options on PORTB. An 8-bit prescaler is shared between Timer0 and the Watchdog Timer. Typical applications include appliance control, sensor signal conditioning front-ends, low-cost consumer products, industrial logic replacement, and battery-powered instrumentation. The SOIC-18 package supports hand-soldered prototypes and high-density SMT production lines alike. Designers should verify that the 2.5V-6.0V supply range matches the system rail, and confirm that the 13 I/O pins are sufficient before committing. OTP memory is one-time programmable, so firmware must be 100% validated before the production run. This page synthesizes distributor pricing from Mouser, DigiKey, and LCSC, plus drop-in alternative MPNs from the Microchip PIC16C family and practical design notes not consolidated on any single distributor page.

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PIC16LC622AT-04E/SS - 8-Bit 4MHz OTP MCU 3.5KB | Microchip
PIC16LC622AT-04E/SS

PIC16LC622AT-04E/SS - 8-Bit 4MHz OTP MCU 3.5KB | Microchip

The Microchip Technology PIC16LC622AT-04E/SS is an EPROM-based 8-bit CMOS microcontroller from the PIC16C family, featuring 3.5KB (2K x 14) of one-time programmable (OTP) program memory, 4 MHz maximum clock speed, and 12 I/O ports in a 20-pin SSOP surface-mount package. It operates from a 2.5V to 5.5V supply (with 2.5V to 6.25V maximum ratings per Microchip datasheet DS30261 family documentation) across an automotive temperature range of -40C to +125C, drawing low current suitable for battery-backed applications. The device belongs to the LC (low-power CMOS) process variant of the PIC16C62x series. An 8-bit microcontroller (MCU) is a programmable single-chip computer that combines a CPU, program memory, data memory, and peripherals on a single silicon die. Within the broader taxonomy, 8-bit MCUs sit below 16-bit and 32-bit microcontrollers in compute capacity but offer deterministic instruction timing, ultra-low cost, and minimal power consumption, making them ideal for cost-sensitive embedded control. The PIC architecture uses a Harvard design with separate program and data buses, a RISC instruction set, and a two-level hardware stack. The PIC16C family specifically targets OTP and EPROM devices for low-volume production runs and legacy designs. Key features include 128 bytes of RAM, 12 CMOS bidirectional I/O pins, two 8-bit timers and one 16-bit timer/counter, a watchdog timer with its own on-chip RC oscillator, power-on reset, brown-out reset, and an internal RC oscillator for reliable startup. The 4 MHz instruction rate delivers 1 MIPS performance, sufficient for slow-loop control, simple sensor interfaces, and user-interface logic. The SSOP-20 footprint (0.209 inch / 5.30 mm body width) is a standard 0.65 mm pitch package compatible with hand-soldering and reflow processes. The PIC16LC622A's architecture is built on Microchip's low-power CMOS process, enabling the LC suffix that distinguishes it from standard PIC16C622A parts. Its RISC core executes 35 single-word instructions in a single instruction cycle (4 clock periods), and the device supports direct, indirect, and relative addressing modes. The integrated watchdog timer with dedicated clock source provides failsafe operation independent of the main oscillator. Typical applications include industrial automation control, consumer electronics user interfaces, low-cost sensor signal conditioning, medical device sub-systems, and automotive body electronics. The wide operating temperature range makes it suitable for under-hood and outdoor installations. Because the part is OTP, it is most cost-effective for low-volume production or legacy migration designs. When designing with this device, ensure the OTP programming step is accounted for in the manufacturing flow, and verify brown-out reset thresholds match the supply voltage profile. The two-level hardware stack constrains nested subroutine depth, so architects must plan call chains carefully. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC16LC622AT-04I/SO - 8-Bit 4MHz OTP MCU, 3.5KB | Microchip
PIC16LC622AT-04I/SO

PIC16LC622AT-04I/SO - 8-Bit 4MHz OTP MCU, 3.5KB | Microchip

The Microchip PIC16LC622AT-04I/SO is an 8-bit CMOS RISC microcontroller from the PIC16C family, offering 4 MHz operation, 3.5 KB (2K x 14) of One-Time-Programmable (OTP) program memory, and 128 bytes of RAM in a surface-mount 18-pin SOIC package. Housed in an industrial-grade -40C to +85C temperature range and supplied on tape-and-reel, it is engineered for cost-sensitive embedded control applications where deterministic response, low power, and small footprint are mandatory. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program storage, working RAM, and a configurable set of digital and analog peripherals around the silicon. Within the broader taxonomy, MCUs sit beneath embedded processors and above discrete logic controllers; the PIC16C family specifically uses a Harvard architecture with separate program and data buses, a RISC instruction set (35 instructions), and a 14-bit wide instruction word that improves code density versus 8-bit CISC cores. The PIC16LC62x series belongs to the PIC16 mid-range family, well established in industrial and white-goods designs. Key features include a 13-bit-wide instruction set, 8-level hardware stack, 13 bidirectional digital I/O lines, two 8-bit timers (Timer0/Timer2) and one 16-bit timer (Timer1), a watchdog timer, and an analog comparator. The device operates across 2.5 V to 6.25 V with ultra-low standby current, supporting both 3.3 V and 5 V rails. The integrated Power-on Reset, Brown-out Reset, and extended WDT provide robust field reliability. Typical applications include appliance control boards, sensor signal conditioning front-ends, white-goods user-interface controllers, simple motor-driver sequencers, and battery-powered metering products. Designers choose this part where deterministic interrupt response, small code footprint, and long product lifecycles outweigh raw MIPS. For new designs, Microchip recommends migrating to the flash-based PIC16F62x family for in-circuit upgradeability while preserving peripheral and pin compatibility. When designing with this MCU, decouple VDD/VSS with a 100 nF ceramic placed within 5 mm of the pins, reserve MCLR via a 10 kohm pull-up, and use the internal oscillator mode to free both oscillator I/O for general-purpose use, reducing BOM cost on space-constrained boards. This page synthesizes distributor pricing, same-package drop-in alternatives, and design notes not consolidated on the manufacturer datasheet, giving engineers a faster procurement and replacement decision.

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PIC16LC622T-04/SO - 3.5KB OTP PIC MCU, 4MHz, SOIC-18 | Microchip
PIC16LC622T-04/SO

PIC16LC622T-04/SO - 3.5KB OTP PIC MCU, 4MHz, SOIC-18 | Microchip

The Microchip Technology PIC16LC622T-04/SO is an 8-bit RISC CMOS microcontroller from the PIC16C family, delivering 4 MHz CPU performance with 3.5 KB (2K x 14) of OTP program memory and 128 bytes of data RAM in a 18-pin SOIC (SO) wide-body package. It operates from 2.5V to 6.25V supply and exposes 13 digital I/O pins (12 I/O ports per the manufacturer datasheet ordering structure plus MCLR), making it suited for compact cost-sensitive embedded control. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, and peripheral I/O on one die. The PIC16C family uses a RISC Harvard architecture with 12-bit wide instructions and an 8-bit data path, supported by seven or eight special-function hardware registers and a two-level deep hardware stack. PIC16C sits in the product hierarchy: 8-bit MCU -> PIC microcontroller -> RISC embedded controller -> semiconductor. This sub-family is the "LC" low-power variant of the PIC16C62x line. Key features of the PIC16LC622T-04/SO include 4 MHz maximum clock speed, OTP (one-time programmable) program memory, low-voltage 2.5V to 6.25V operation, 13 bidirectional I/O lines, watchdog timer, power-on reset, and brown-out detection circuitry. The "04" suffix denotes the 4 MHz speed grade; the "T" suffix denotes tape and reel packaging. The wide-body SO-18 (SOIC-18, 300 mil) surface-mount package provides mechanical compatibility with industry-standard hand-soldering and reflow profiles. Typical applications include consumer appliance controllers, low-end remote keyless entry transmitters, simple motor and relay drivers, LED lighting controllers, and battery-powered sensor interfaces. The low-voltage CMOS core makes the part appropriate for handheld and portable products where quiescent current and supply flexibility matter. When designing with this part, remember OTP memory is one-time programmable; firmware bugs require board-level rework rather than a re-flash. Use the in-circuit serial programming (ICSP) interface for prototype bring-up and the device configuration bits to select oscillator mode, watchdog state, and code-protect options. This page combines Microchip datasheet specifications, distributor stock and pricing, pin-compatible PIC16 family drop-in alternatives, and practical design notes - giving engineers more decision context than the manufacturer datasheet alone provides.

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PIC16LC622T-04E/SS - 8-Bit 4MHz OTP MCU 3.5KB | Microchip
PIC16LC622T-04E/SS

PIC16LC622T-04E/SS - 8-Bit 4MHz OTP MCU 3.5KB | Microchip

The Microchip Technology PIC16LC622T-04E/SS is an 8-bit PIC16C-series RISC microcontroller running at 4 MHz, with 3.5 KB (2K x 14) of One-Time-Programmable (OTP) program memory and 128 bytes of RAM, housed in a 20-pin SSOP package. Operating from a 2.5 V to 6.0 V supply, this low-power CMOS device targets cost-sensitive embedded control applications where simple I/O, low energy, and OTP code storage are required. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, and peripherals such as timers, ADC, and communication interfaces. The PIC16C/PIC16LC family belongs to the 8-bit microcontroller hierarchy, which sits within the broader embedded-microcontroller category (8-bit MCU -> microcontroller -> embedded processor -> semiconductor). OTP variants allow one-time programming via a device programmer and offer the lowest unit cost for high-volume production where firmware is fixed. Key features include 12 I/O pins (13 in some datasheet characterizations), an 8-bit timer/counter, watchdog timer (WDT) with on-chip RC oscillator, power-on reset (POR), brown-out reset (BOR), and a 2-level deep hardware stack. The RISC instruction set of 35 single-word instructions enables efficient code density, with Harvard architecture separating program and data buses for predictable execution. The PIC16LC622T-04E/SS uses CMOS process technology for low power consumption and integrates a 4 MHz internal/external clock option. The 'T' suffix indicates Tape & Reel packaging for surface-mount production, while 'SS' designates the SSOP-20 (209-mil) package, and the 'E' indicates the Enhanced (industrial, -40C to +125C) operating temperature range. Typical applications include consumer electronics (remote controls, small appliances), industrial control modules (sensor interfaces, low-end motor control), automotive body electronics (non-safety subsystems), white goods (washing machines, dishwashers), and battery-powered devices where 0.4 mA typical operating current extends battery life. The wide supply range also makes it suitable for both 3.3 V and 5 V designs. When designing with this MCU, observe that OTP memory cannot be re-programmed in-circuit; prototype with the windowed (UV-erasable) PIC16CR622 or the flash-based PIC16F622 before committing to OTP. A decoupling capacitor of 0.1 uF placed within 5 mm of VDD is mandatory for noise immunity, and unused I/O pins should be configured as outputs to minimize current draw. This page synthesizes distributor pricing, lifecycle status, drop-in same-package alternatives, and engineering design notes that complement but do not replace the manufacturer datasheet.

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PIC16LC62A-04/SO - 8-Bit 4MHz MCU 3.5KB OTP 28-SOIC | Microchip
PIC16LC62A-04/SO

PIC16LC62A-04/SO - 8-Bit 4MHz MCU 3.5KB OTP 28-SOIC | Microchip

The Microchip Technology PIC16LC62A-04/SO is an 8-bit RISC CMOS microcontroller based on the PIC16 mid-range core, delivering 4 MHz maximum clock speed with 3.5 KB (2K x 14) of One-Time-Programmable (OTP) program memory and 128 bytes of RAM, housed in a 28-pin SOIC (SO-18 / 300-mil) plastic package. The "LC" voltage class supports 2.5V to 6.25V operation (typical 3.3V / 5V rails), while the "A" silicon revision and "04" speed grade indicate the 4 MHz oscillator variant. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, program memory, and I/O peripherals on one die. The PIC16 architecture is a Harvard RISC design - program and data memories use separate buses, enabling simultaneous instruction fetch and data access. The PIC16C/LC family falls under the broader taxonomy: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. LC variants target low-voltage/low-power applications, complementing the standard PIC16C parts that operate up to 6V. Key features include 22 digital I/O pins organized as PORTA and PORTB, two 8-bit timers (Timer0 and Timer2) plus one 16-bit timer (Timer1), a 10-bit multi-channel Analog-to-Digital Converter, a Watchdog Timer with on-chip RC oscillator, and Power-on Reset / Brown-out Reset circuitry. The 12-bit wide instruction word with 8-bit data path, two-level deep hardware stack, and direct/indirect/relative addressing modes give the PIC16LC62A its characteristic code density and predictable interrupt latency. The PIC16LC62A's CMOS process technology yields extremely low power consumption (typically <2 mA active at 4 MHz / 5V, microampere-range sleep), making it suitable for battery-backed and energy-harvesting designs. The wide 2.5V-6.25V supply range tolerates unregulated wall-adapter rails and rechargeable battery packs directly. Typical applications include consumer appliance controls, HVAC thermostat interfaces, simple sensor signal conditioning, remote-control transmitters, low-end automotive body controllers, and industrial timer/counter modules where deterministic execution and small footprint outweigh raw throughput. Design considerations: use a 4 MHz ceramic resonator or crystal with appropriate load capacitors on OSC1/OSC2, configure the configuration bits for oscillator type and watchdog enable, and provide adequate decoupling (100 nF + 10 uF) near VDD. OTP memory means firmware must be fully verified before programming - there is no in-circuit reprogramming on this family. This page synthesizes distributor pricing, drop-in OTP/family alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC16LC62A-04/SP - 8-bit 4MHz OTP MCU, 3.5KB, 28-SPDIP | Microchip
PIC16LC62A-04/SP

PIC16LC62A-04/SP - 8-bit 4MHz OTP MCU, 3.5KB, 28-SPDIP | Microchip

The Microchip PIC16LC62A-04/SP is an 8-bit RISC PIC16-family microcontroller built on a low-power CMOS process, with a 4 MHz maximum operating clock, 3.5 KB (2K x 14) of One-Time-Programmable (OTP) EPROM program memory, 128 bytes of RAM, and 22 digital I/O lines, all integrated in a 28-pin SPDIP through-hole package. This combination of moderate program memory, low-power 'LC' core operation, and a wide 2.5 V to 6.25 V supply range makes the part well suited to legacy and industrial control designs that must tolerate 3.3 V or 5 V rails. The '04' speed grade and the 28-pin DIP form factor simplify prototyping, breadboarding, and field-replaceable production units in mature embedded platforms. A microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, working RAM, non-volatile data storage, and programmable I/O peripherals on one die. Within the Microchip taxonomy, the PIC16 series is a mid-range 8-bit RISC architecture using a 14-bit-wide instruction word, a small register file, a hardware stack, and a RISC instruction set designed for deterministic, low-MIPS embedded control. The 'LC' suffix indicates a low-voltage CMOS variant (as opposed to the higher-voltage 'C' or 'F' Flash family), making the PIC16LC62A a member of the power-management-optimized branch of the PIC16C sub-family. Key features include 35 single-word instructions, a 200 ns instruction cycle at 4 MHz, a two-level deep hardware call/return stack, and seven or eight Special Function Registers (SFRs). Addressing modes cover direct, indirect, and relative, supporting efficient C and assembly code generation. The 22 I/O ports can be individually configured for digital input or output, with several pins multiplexed for timer, comparator, or external interrupt functions typical of PIC16C-series MCUs. Typical applications span industrial automation controllers, sensor signal-conditioning front ends, appliance control boards, automotive body and chassis subsystems, and consumer white-goods embedded controls where a proven 8-bit core, OTP memory for low-cost unit production, and a DIP package for serviceability outweigh the need for in-system reprogrammability or higher analog integration. Designers valuing pin-compatibility with newer Flash-based PIC16F replacements can migrate without PCB rework. Lifecycle status is reported as ACTIVE by distributors, confirming continued availability for both new designs and long-life maintenance programs as of 2026-09-22.

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PIC16LC62A-04/SS - 8-bit MCU 3.5KB OTP 22 I/O SSOP-28 | Microchip
PIC16LC62A-04/SS

PIC16LC62A-04/SS - 8-bit MCU 3.5KB OTP 22 I/O SSOP-28 | Microchip

The Microchip Technology PIC16LC62A-04/SS is an 8-bit RISC CMOS microcontroller featuring 3.5 KB of OTP program memory, 128 bytes of RAM, and 22 digital I/O pins, housed in a 28-pin SSOP package. It runs at a maximum clock speed of 4 MHz from a 2.5V to 6.25V supply, making it suitable for both 3.3V and 5V system designs. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (program + RAM), and programmable I/O peripherals. The PIC16 family is a classic Harvard-architecture 8-bit RISC MCU family from Microchip, widely used as the entry point for embedded control due to its small footprint, low cost, and broad peripheral set. The PIC16LC62A sits in the mid-range PIC16 sub-family, between baseline PIC10/12/16 and enhanced mid-range PIC16F parts. Key features include a 12-bit wide instruction set, 8-bit wide data path, two-level deep hardware stack, and support for direct, indirect, and relative addressing. Seven or eight special-function hardware registers expose core control, and a synchronous serial port (SSP) plus capture/compare/PWM and 8-bit ADC channels are integrated for typical embedded peripherals. The OTP (One-Time-Programmable) memory supports low-volume production programming at the factory. The PIC16LC62A uses a RISC architecture with a fixed 12-bit instruction word and an 8-bit data path, optimizing code density and execution determinism. The Harvard structure keeps program and data memory on separate buses, allowing instruction fetch and operand access in the same cycle. Power consumption is modest (LC variant for low-power CMOS), enabling battery-friendly designs. Typical applications include industrial control, IoT edge nodes, embedded automation, simple motor control, metering, and low-power board designs. The wide supply range and SSOP footprint also suit retrofit designs on legacy PIC16 layouts. When designing, remember the 2-level hardware stack limits call depth - use careful subroutine nesting. The OTP memory means firmware must be committed at programming time; for prototyping, choose a PIC16F equivalent or a JW-package windowed part. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC16LC62A-04I/SO - 8-Bit 4MHz 3.5KB OTP MCU | Microchip
PIC16LC62A-04I/SO

PIC16LC62A-04I/SO - 8-Bit 4MHz 3.5KB OTP MCU | Microchip

The Microchip Technology PIC16LC62A-04I/SO is an 8-bit RISC microcontroller in the PIC16C family with 3.5KB of One-Time Programmable (OTP) program memory and a 4 MHz maximum operating frequency, housed in a 28-pin SOIC wide-body package. It is designed for low-power, low-cost embedded control applications and runs from a 2.5V to 6.25V supply, supporting both 3.3V and 5V system designs. The /04 speed grade limits the clock to 4 MHz, while the LC process variant enables lower quiescent current draw than the standard PIC16C62A. A microcontroller (MCU) is a single-chip computer containing a CPU, program memory, data memory, and peripheral interfaces. The PIC16C family uses a Harvard RISC architecture with a 14-bit instruction word and 8-bit data path, a two-level hardware stack, and 12-bit-wide instructions. This architecture gives predictable interrupt latency, deterministic execution time, and extremely compact code density, which historically made PIC MCUs popular in cost-sensitive, battery-powered products. PIC16LC62A variants specifically target low-voltage operation for portable and battery-backed designs. Key features of the PIC16LC62A-04I/SO include 3.5KB (2K x 14) of program memory, 128 bytes of RAM, 12 digital I/O pins, an 8-bit timer/counter, a watchdog timer, and an internal RC oscillator. Industrial temperature range (-40C to +85C) and surface-mount 28-pin SOIC packaging make it suitable for factory and consumer assemblies. The OTP memory is programmed once and cannot be electrically erased, making this part ideal for high-volume production where firmware is final. Architecturally, the device uses CMOS technology with separate program and data buses (PIC16CXX family). It includes seven or eight special-function hardware registers and supports direct, indirect, and relative addressing modes. The /04 speed suffix maps directly to the 4 MHz oscillator specification and the corresponding instruction-cycle throughput of 1 MIPS at 4 MHz. Typical applications include low-cost consumer electronics, simple motor control, sensor signal conditioning, remote controls, and battery-backed instrumentation. The wide 2.5V-6.25V input range also supports industrial 24V-derived rails with adequate headroom when regulated. Designers should choose the /04 grade for 4 MHz operation; faster /20 grades exist for higher throughput on the same die. When laying out the PCB, follow Microchip application note TB005 for PIC16C decoupling (0.10 uF + 10 uF bulk) and place the 28-SOIC package on a 0.300-inch-wide land pattern. Use MCLR with the proper pull-up network, and avoid long parallel traces on the I/O bank to minimize EMI. This page consolidates real-time distributor pricing, drop-in alternatives sourced from the Microchip cross-reference, and practical design notes that go beyond the manufacturer datasheet, giving engineers a single decision point for organic upgrading.

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PIC16LC62A-04I/SS - 8-Bit 4MHz OTP MCU, 3.5KB, 28-SSOP | Microchip
PIC16LC62A-04I/SS

PIC16LC62A-04I/SS - 8-Bit 4MHz OTP MCU, 3.5KB, 28-SSOP | Microchip

The Microchip PIC16LC62A-04I/SS is an 8-bit CMOS microcontroller from the PIC16C family, built on a RISC architecture and housed in a 28-pin SSOP package. It integrates 3.5KB of One-Time-Programmable (OTP) program memory organized as 2K x 14, 12 I/O pins, and operates from a 2.5V to 6.25V supply at clock speeds up to 4 MHz. The 'LC' voltage class supports low-voltage operation for battery-powered designs, while the 'I' suffix denotes the industrial temperature range of -40C to +85C. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, data RAM, and programmable peripherals. The PIC16LC62A family sits in the legacy PIC16 mid-range (PIC16C) tier, sharing the standard 14-bit instruction word and 8-bit data path of the mid-range PIC architecture, with two-level hardware stack and seven or eight special-function hardware registers. This family is widely used as a stepping stone from discrete logic designs to fully programmable embedded control. Key features of the PIC16LC62A-04I/SS include a RISC instruction set with 12-bit wide instructions and an 8-bit data path, 12 digital I/O ports, a two-level deep hardware stack, direct/indirect/relative addressing modes, and on-chip oscillator support. Its OTP memory enables one-time field programming, suitable for low-to-medium volume production runs. The 28-SSOP (5.30 mm body width) package balances board-area savings with hand-solderable lead pitch. Architecturally, the device uses Microchip's proven PIC16C core with separate program and data buses (Harvard architecture), enabling single-cycle instruction execution except for branches. The 4 MHz maximum clock rate delivers 1 MIPS of throughput, sufficient for slow control loops, human-interface logic, and sensor readout tasks. Typical applications include appliance control, sensor signal conditioning, simple human-interface panels, low-cost motor drivers, and industrial monitoring nodes. Industrial-grade temperature and the wide 2.5V-6.25V supply range make the part well-suited for 3.3V and 5V mixed-rail systems. When designing with the PIC16LC62A-04I/SS, plan for OTP programming - this part cannot be re-programmed, so development is normally done on a compatible UV-erasable PIC16LC62A or flash-based PIC16F equivalent before moving to OTP for production. This page synthesizes distributor pricing, drop-in alternatives, and engineering design notes not found in the manufacturer datasheet.

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PIC16LC62AT-04/SO - 8-Bit PIC MCU 4MHz 3.5KB OTP | 28-SOIC
PIC16LC62AT-04/SO

PIC16LC62AT-04/SO - 8-Bit PIC MCU 4MHz 3.5KB OTP | 28-SOIC

The Microchip Technology PIC16LC62AT-04/SO is an 8-bit CMOS RISC microcontroller from the PIC® 16C family, built around the PIC16 CPU core and operating at up to 4 MHz. It integrates 3.5 KB of OTP program memory (organized as 2K x 14 bits), 128 bytes of data RAM, and 22 digital I/O pins, all packaged in a 28-pin SOIC (SO) wide-body surface-mount form factor shipped on tape and reel. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, data RAM, peripherals, and I/O on one die; it sits at the lowest tier of the embedded processor hierarchy, below 16-bit and 32-bit MCUs, and is optimized for cost-sensitive deterministic control tasks. The PIC16C/LC family uses a Harvard RISC architecture with a small instruction set and a one-instruction-per-cycle pipeline, making the LC62A well-suited to real-time control loops where predictable timing matters more than raw throughput. Key features include a 4 MHz maximum clock, OTP (one-time programmable) program memory for low-cost high-volume production, 22 general-purpose I/O pins, an operating voltage range of typically 2.5 V to 6.0 V (with the LC (low-voltage) variant extending low-end operation), and CMOS static design for low quiescent current. Peripherals follow the standard PIC16 mid-range set including timers, a Watchdog Timer, and analog/digital I/O. This member of the family is the LC (low-voltage) version in the SOIC wide-body package with industrial-grade operating range and tape-and-reel packaging (suffix T). It belongs to the mid-range PIC16 MCU family, which sits between the baseline PIC10/12/16 and the enhanced PIC18 families in the Microchip 8-bit MCU hierarchy. Typical applications include industrial control systems, consumer electronics, automotive subsystems, appliance control boards, and general-purpose embedded logic. The 22 I/O count and 3.5 KB code space comfortably handle keypad scanning, LED drive, simple sensor reading, and basic UART/I2C-style protocol bit-banging. When designing with this device, plan firmware carefully because OTP memory cannot be reprogrammed in-circuit; use the windowed or flash sibling (PIC16F62x family) for prototyping and reserve OTP for production. Also note that several PIC16LC62A order-code suffixes encode operating temperature, voltage, and packaging options, so always cross-check the exact MPN against the datasheet ordering table before committing to a layout. This page synthesizes the manufacturer's datasheet specifications, distributor pricing tiers, drop-in alternative part numbers (same package and pinout), and practical design notes that complement the original datasheet and accelerate engineering decisions.

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PIC16LC62AT-04I/SO - 4MHz 8-bit OTP MCU 3.5KB | Microchip
PIC16LC62AT-04I/SO

PIC16LC62AT-04I/SO - 4MHz 8-bit OTP MCU 3.5KB | Microchip

The Microchip Technology PIC16LC62AT-04I/SO is an 8-bit RISC microcontroller from the PIC16C6X family, featuring 3.5KB (2K x 14) of One-Time Programmable (OTP) program memory and 128 bytes of RAM in a 28-pin SOIC (SO) wide-body package supplied on tape and reel. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, volatile data RAM, and peripheral interfaces (timers, ADC, I/O, communication ports) into one device. The PIC16LC62AT-04I/SO belongs to the PIC16LC family of low-voltage CMOS microcontrollers, which sits within Microchip's mid-range 8-bit PIC architecture hierarchy: PIC10/12/14/16/18 8-bit family -> 8-bit PIC microcontroller -> microcontroller -> embedded computing -> semiconductor IC. This part targets cost-sensitive embedded control applications that need deterministic instruction execution. Key specifications include a maximum clock speed of 4 MHz, an operating voltage range of 2.5 V to 6.25 V, 22 I/O pins, a two-level hardware stack, and an industrial temperature grade (-40C to +85C). The device uses Harvard architecture with separate code and data buses, executes 35 single-word instructions, and completes most instructions in a single instruction cycle (200 ns at 20 MHz). Peripherals include a watchdog timer, three timers, and a Capture/Compare/PWM (CCP) module. Typical applications include appliance control, sensor signal conditioning, low-cost motor drives, LED lighting controllers, and battery-powered instruments. The 22 I/O pins and three timers allow it to service multiple switches, relays, and PWM channels concurrently while staying within tight BOM cost targets. Designers should note that OTP memory cannot be reprogrammed; for field updates, choose a Flash-based PIC16F equivalent. The wide-body SOIC-28 footprint is also offered in PDIP and SSOP variants within the same PIC16LC62A family, allowing PCB layout reuse. This page synthesizes distributor pricing from DigiKey, Mouser, and LCSC, cross-references drop-in alternatives, and provides practical design notes not assembled in the manufacturer datasheet.

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PIC16LC62AT-04I/SS - 8-Bit 4MHz OTP MCU 3.5KB | Microchip
PIC16LC62AT-04I/SS

PIC16LC62AT-04I/SS - 8-Bit 4MHz OTP MCU 3.5KB | Microchip

The Microchip Technology PIC16LC62AT-04I/SS is an 8-bit PIC microcontroller from the PIC16C family, delivering 4MHz CPU performance with 3.5KB (2K x 14) of One-Time Programmable (OTP) program memory and 128 bytes of RAM in a 28-pin SSOP package. The 'LC' low-voltage variant operates from 2.5V to 6.25V, and the 'I' suffix denotes the industrial temperature grade of -40C to +85C. The 'T' denotes tape-and-reel packaging, and the 'SS' suffix specifies the 28-pin SSOP form factor. An 8-bit PIC (Peripheral Interface Controller) microcontroller is a RISC-based computing device that integrates a CPU, program memory, data RAM, peripheral timers, and I/O into a single chip. PIC microcontrollers occupy the embedded-MCU branch of the broader microcontroller taxonomy (MCU -> embedded controller -> semiconductor IC) and are widely used in cost-sensitive control applications where deterministic instruction execution and a small footprint are valued over raw processing throughput. The PIC16C family specifically uses a 14-bit instruction word set with a Harvard architecture separating program and data memory paths. Key features of the PIC16LC62AT-04I/SS include a 4MHz maximum clock speed, 12 I/O pins, a two-level hardware stack, 35 single-word instructions, 8-bit wide data path with 12-bit wide instructions, and direct/indirect/relative addressing modes. The OTP memory is one-time programmable, making this device appropriate for low-volume production runs or mature designs where code has been finalized. All instructions execute in a single cycle except program branches, which take two cycles, providing predictable timing for interrupt-driven and polled control loops. Typical applications include appliance control, industrial sensor interfacing, LED drivers, low-end motor control, and battery-powered instrumentation where the wide 2.5V-6.25V supply range provides design flexibility. The 22 I/O pins (per Jotrin data) and multiple timer/counter peripherals enable direct connection of buttons, LEDs, relays, and analog sensor front-ends. When designing with this OTP device, program the finalized firmware before final PCB assembly because OTP parts cannot be reprogrammed. Provide adequate decoupling (100nF + 10uF) close to VDD/VSS, and use the MCLR pin reset with a 10k pull-up to VDD for reliable startup. Code development should be performed on a UV-erasable PIC16C62A windowed sample first, with the OTP version used for production.

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PIC16LC62B-04/SP - 4MHz 8-Bit OTP MCU, 3.5KB | Microchip
PIC16LC62B-04/SP

PIC16LC62B-04/SP - 4MHz 8-Bit OTP MCU, 3.5KB | Microchip

The Microchip Technology PIC16LC62B-04/SP is an 8-bit EPROM/OTP-based CMOS microcontroller from the PIC16C family, operating at 4 MHz with a 200 ns instruction cycle, packaged in a 28-pin SPDIP through-hole format. It integrates 3.5 KB of program memory (2K x 14 words), 128 bytes of RAM, and 22 digital I/O pins for embedded control designs. The "L" prefix denotes the low-voltage variant supporting both 3.3V and 5V operation, and the "/SP" suffix specifies the 28-pin Skinny Plastic DIP package supplied in tube packaging. An 8-bit microcontroller (MCU) is a single-chip computer containing a CPU, program memory (ROM/EPROM/Flash), data memory (RAM), and configurable I/O peripherals on one die. Within the broader hierarchy, the PIC16LC62B belongs to the PIC16C family of RISC microcontrollers, which falls under the 8-bit MCU category, itself a subset of embedded computing and digital ICs. The 8-bit MCU class targets cost-sensitive, low-to-moderate-complexity control tasks such as sensor interfacing, simple user I/O, and timer-driven control loops. Key features include 35 single-cycle instructions (with only program branches taking two cycles), a 4 MHz external oscillator interface, an internal watchdog timer, and 22 general-purpose I/O pins multiplexed with on-chip peripherals. The Harvard architecture separates program and data buses, allowing instruction fetch and operand read in a single 200 ns cycle. On-chip peripherals include a Timer0 8-bit timer/counter with an 8-bit prescaler, Timer1 16-bit timer/counter, and capture/compare/PWM (CCP) modules. The PIC16LC62B implements Microchip's enhanced mid-range 14-bit instruction set, providing greater code density than the baseline 12-bit PIC cores while retaining upward compatibility. EPROM (erasable programmable read-only memory) allows windowed-package parts to be erased with UV light for development, while OTP (one-time programmable) versions are intended for production programming where re-programmability is not required. Typical applications include low-power sensor interface boards, simple appliance control modules, hobby and educational microcontroller projects, replacement of discrete logic in legacy designs, and embedded timing/sequencing circuits. The wide 3.3V/5V supply range enables both battery-powered and mains-powered designs. When designing with this device, note that the 28-SPDIP through-hole footprint requires through-hole PCB assembly rather than reflow soldering. Programming requires a Microchip device programmer (e.g., PICkit or MPLAB PM3) and the OTP variant can only be programmed once. This page synthesizes verified distributor inventory data, parametric comparison with same-package Microchip drop-in alternatives, and practical design notes that go beyond the manufacturer's datasheet alone.

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