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PIC16LCE623-04E/P - 8-Bit 4MHz OTP MCU 896B | Microchip
PIC16LCE623-04E/P

PIC16LCE623-04E/P - 8-Bit 4MHz OTP MCU 896B | Microchip

The Microchip Technology PIC16LCE623-04E/P is an 8-bit PIC16C-series microcontroller featuring 896 bytes (512 x 14) of One-Time Programmable (OTP) program memory, 96 bytes of RAM, and 13 I/O pins, housed in a through-hole 18-PDIP package (0.300 inch / 7.62 mm). It operates at up to 4 MHz with an external oscillator across a 2.5 V to 5.5 V supply range. An 8-bit microcontroller (MCU) is a small computer-on-a-chip containing a CPU, program memory, RAM, and peripherals designed for embedded control tasks. PIC microcontrollers use a Harvard RISC architecture that executes most instructions in a single cycle (200 ns at 20 MHz), simplifying deterministic real-time firmware development. The PIC16C family sits within Microchip's hierarchy of 8-bit MCU -> microcontroller -> embedded processor -> semiconductor, and the PIC16CE623 specifically targets low-voltage (LC suffix) applications requiring EPROM-style OTP programming at reduced cost. Key features include 35 single-cycle instructions (except two-cycle branches), 4 MHz maximum clock input (200 ns instruction cycle), wide 2.5 V to 5.5 V supply range for battery-friendly operation, and 13 digital I/O pins. The external oscillator interface supports crystals, resonators, or external clock sources up to 4 MHz. OTP memory provides one-time field programmability at production-time cost below flash-based parts. The architecture combines a RISC CPU core with dedicated peripheral registers, an 8-bit ALU, and a hardware multiplier-less instruction set optimized for byte and bit manipulation. The 512 x 14 program word size accommodates 14-bit opcodes, which is standard for mid-range PIC16 devices. Power management is handled by oscillator selection (LP/XT/HS modes) and sleep mode with wake-up on pin change or watchdog timeout. Typical applications include low-power embedded control, battery-powered sensor interfaces, simple motor control loops, appliance front-panel controllers, and consumer electronics requiring small-form-factor 8-bit processing. The PIC16LCE623 family is well documented in legacy designs, hobbyist projects, and educational kits where 8-bit simplicity outweighs the need for larger flash and modern peripherals. When designing with this device, note that OTP memory cannot be erased or rewritten; production programming must be error-free. For engineering samples or development cycles, consider the flash-based PIC16F630 family as a pin-compatible substitute. Industrial temperature grade (E suffix) supports -40C to +125C operation. This page synthesizes distributor pricing, parametric comparisons, drop-in alternatives, and practical design guidance not consolidated on a single manufacturer datasheet page, supporting faster procurement and design-in decisions.

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PIC16LCE623-04E/SO - 4MHz 8-bit OTP MCU 896B | Microchip
PIC16LCE623-04E/SO

PIC16LCE623-04E/SO - 4MHz 8-bit OTP MCU 896B | Microchip

The Microchip Technology PIC16LCE623-04E/SO is an 8-bit CMOS OTP (One-Time Programmable) microcontroller from the PIC16C family, delivering 4 MIPS performance at a 4 MHz external clock and housed in an 18-pin SOIC wide-body surface-mount package. It integrates 896 bytes of program memory (512 x 14 words), 96 bytes of data RAM, and 13 digital I/O pins, along with an 8-bit timer/counter and on-chip analog comparator. The 'LC' suffix designates the 3.0V-3.6V low-voltage variant, and the 'E' suffix indicates the extended operating temperature grade (-40C to +125C). An 8-bit OTP microcontroller is a single-chip computer built around a Harvard-architecture CPU with non-volatile one-time-programmable program memory, distinct from flash-based MCUs that allow multiple erase/write cycles. OTP parts ship blank and are programmed once by the user, which reduces unit cost versus flash parts and makes them suited to mature production runs where firmware is finalized and code protection is enforced by the inability to read back the program. In the broader taxonomy, this device belongs to microcontrollers -> embedded controllers -> ICs, and within the PIC16 family it represents an early-generation low-cost general-purpose MCU optimized for simple control loops, user-interface scanning, and appliance logic. Key features include a 4 MHz maximum clock, 200 ns single-cycle instruction execution (except 2-cycle branches), 35 single-word RISC-style instructions, an analog comparator module, a watchdog timer with on-chip RC oscillator, in-circuit serial programming (ICSP) via two pins, and power-saving SLEEP mode with wake-up on pin change. The PIC16LCE623-04E/SO also supports power-on reset, brown-out reset, and code-protection fuses. The architecture uses a 14-bit instruction word with separate program and data buses (Harvard), enabling simultaneous instruction fetch and operand access. The internal oscillator reference for the watchdog is RC-based and independent of the system clock, which simplifies BOM by removing an external watchdog resistor. Typical applications include white-goods and appliance control panels, remote-keyless-entry keyfobs, simple sensor interfaces, low-power battery indicator circuits, and replacement of discrete logic in cost-sensitive industrial equipment. When designing with this device, ensure the VDD supply is decoupled with 100 nF ceramic close to the pin pair, route the ICSP clock/data lines to a 5-pin header for in-system programming, and reserve the MCLR pin configuration carefully because enabling internal weak pull-up eliminates the need for an external reset RC network. This page synthesizes distributor stock, parametric depth, and drop-in alternatives beyond what is shown in the manufacturer datasheet, helping procurement and design engineers validate a replacement or finalize a long-life BOM.

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PIC16LCE623-04E/SS - 8-bit OTP MCU, 4MHz, 20-SSOP | Microchip
PIC16LCE623-04E/SS

PIC16LCE623-04E/SS - 8-bit OTP MCU, 4MHz, 20-SSOP | Microchip

The Microchip Technology PIC16LCE623-04E/SS is an 8-bit PIC microcontroller from the PIC16LC6xx family, delivering up to 4 MHz CPU performance in a 20-pin SSOP package. The device integrates 896 bytes of One-Time Programmable (OTP) program memory, organized as 512 x 14 words, alongside 96 bytes of data RAM and 128 bytes of EEPROM for non-volatile parameter storage. With 13 digital I/O pins and an external oscillator interface, the part targets cost-sensitive embedded control designs. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, RAM, and peripheral interfaces onto one IC. PIC microcontrollers use a RISC-based Harvard architecture where the program bus and data bus are separated, allowing instruction fetch and operand read to occur in the same cycle. The PIC16LC family is the low-power (LC) variant, typically supporting operation from 2.5V to 5.5V with sleep currents in the microamp range. Within Microchip's portfolio, the LC line sits beneath the F (Flash) line and is generally aimed at high-volume OTP-based designs rather than field-reprogrammable products. MCUs occupy the broader category of embedded processors, distinct from microprocessors by integrating memory and peripherals on-chip. Key features include a 4 MHz maximum clock frequency, 200 ns single-cycle instruction execution (with two cycles for program branches), a 35-instruction instruction set, 8-bit timer/counter, capture/compare/PWM (CCP) module, and an analog comparator. Brown-out reset (BOR) and power-on reset (POR) are integrated, alongside a watchdog timer (WDT) for reliable operation in electrically noisy environments. The SSOP-20 footprint is compatible with the standard 0.300-inch 18-pin DIP outline when PCB layout permits. Architecturally, the PIC16LC6xx core uses a 14-bit instruction word and an 8-bit data path, with dedicated peripheral registers mapped into the data memory space. The OTP program memory is programmed once and cannot be erased, making the part ideal for mature, stable production designs rather than iterative prototyping. The external oscillator option supports crystal, resonator, or external clock operation up to 20 MHz, with internal divide-by-N for CPU clock generation. Typical applications include appliance control, sensor signal conditioning, low-power remote controls, LED lighting controllers, and small-form-factor industrial interfaces. The device's combination of EEPROM, timers, and comparators makes it well-suited for closed-loop control of fans, pumps, and motor drivers, as well as for replacement of discrete logic in compact embedded boards. When designing with this part, note that OTP memory cannot be reprogrammed; therefore the production firmware must be fully validated before programming. Ensure the supply voltage stays within the LC variant's 2.5V-5.5V range; using the standard PIC16F equivalent may be preferable for in-circuit reprogrammability. Consider the PIC16LCE623-04/P variant only when a DIP package is needed for through-hole designs. This page synthesizes distributor pricing, drop-in alternatives from the same PIC16LC6xx family, and practical design notes not consolidated on the manufacturer datasheet.

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

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

The Microchip Technology PIC16LCE623-04I/P is an 8-bit RISC CMOS microcontroller from the PIC® 16C family, housed in an 18-pin DIP (0.300 inch, 7.62 mm) through-hole package. It integrates 896 bytes of One-Time Programmable (OTP) program memory, 96 bytes of SRAM data memory, and 13 bidirectional I/O pins, and operates at up to 4 MHz system clock from a 2.5 V to 5.5 V supply. The industrial temperature grade (-40C to +85C) suffix "I" and through-hole "P" package suffix make this part suitable for legacy, hand-soldered, and prototype-friendly designs. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, program memory, and peripheral I/O on one die. PIC microcontrollers use a Harvard RISC architecture with a 14-bit instruction word, which keeps instruction fetch and data access on separate buses for deterministic timing. In the broader taxonomy, this places the PIC16LCE623 in the 8-bit MCU class within the microcontroller family, sitting under embedded computing and above discrete logic. The "LC" low-voltage CMOS prefix extends the original PIC16C die to sub-3V operation, while the "E" denotes an enhanced mid-range core. Key features include a 4 MHz maximum oscillator frequency, an 8-bit ADC (depending on the specific die variant), internal and external interrupt sources, a watchdog timer with dedicated on-chip RC oscillator, power-saving Sleep mode, and in-circuit serial programming (ICSP). The 14-bit instruction set delivers roughly 200 ns per instruction at 20 MHz (proportionally longer at 4 MHz), giving deterministic interrupt latency that is critical for real-time control loops. The through-hole DIP-18 footprint simplifies breadboarding and field repair, and the industrial temperature range allows deployment in uncontrolled enclosures. Typical uses include appliance control, low-end sensor interfaces, replacement of discrete logic in glue applications, battery-powered instruments taking advantage of the low-voltage core, and educational or hobbyist projects where OTP and through-hole packaging are advantages. The 4 MHz ceiling indicates the "-04" speed grade; higher "-20" grades exist for the same die. When designing with this part, ensure Vdd decoupling with at least 100 nF plus bulk capacitance, leave the MCLR pin pulled high through 10 kohm for normal operation, and respect the OTP programming window (one-time programmable - cannot be re-flashed after the programming window is closed). The DIP-18 footprint supports both socketed and soldered installations, easing real prototyping.

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PIC16LCE623-04I/SS - 8-Bit 4MHz OTP MCU 20-SSOP | Microchip
PIC16LCE623-04I/SS

PIC16LCE623-04I/SS - 8-Bit 4MHz OTP MCU 20-SSOP | Microchip

The Microchip Technology PIC16LCE623-04I/SS is an 8-bit CMOS microcontroller from the PIC16C family, delivering 4 MHz CPU performance with 896 bytes (512 x 14) of One-Time-Programmable (OTP) program memory in a 20-pin SSOP package. It integrates 128 bytes of EEPROM data memory and 96 bytes of RAM, providing a compact footprint for embedded control applications. Key features include 13 general-purpose I/O pins, a 2.5 V to 5.5 V wide operating voltage range, and an industrial temperature grade of -40 °C to +85 °C. The "LCE" suffix denotes the low-power CMOS core variant designed for battery-friendly operation, while the "04" speed grade specifies 4 MHz maximum oscillator frequency and the "I" suffix indicates the industrial temperature range. The PIC16LCE623-04I/SS uses Microchip's well-established mid-range 8-bit RISC architecture with 35 single-cycle instructions. The architecture provides deterministic timing suitable for real-time control, while the 14-bit instruction word supports direct bit manipulation, hardware register access, and interrupt-driven peripherals. Internal peripherals typically include timers, a watchdog timer, and analog comparators depending on die variant. Typical applications span low-power consumer products, white goods and appliance controls, simple sensor interfaces, and industrial monitoring nodes. The 20-SSOP package is footprint-compatible with many PIC16Cxxx siblings, which simplifies board respins when migrating to alternate OTP or windowed variants during prototyping. When designing with this device, ensure the oscillator configuration matches the application's EMI and power budget, and budget for OTP programming during production flow. The 20-SSOP exposed-pad variant is not used here; standard SSOP land pattern applies. This page synthesizes distributor pricing, cross-reference search results, and engineering selection guidance not aggregated in a single datasheet, helping engineers decide whether the PIC16LCE623-04I/SS fits their BOM or whether a Flash-based PIC16F sibling is a better long-term choice.

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PIC16LCE623T-04/SO - 8-Bit 4MHz OTP MCU 896B | Microchip
PIC16LCE623T-04/SO

PIC16LCE623T-04/SO - 8-Bit 4MHz OTP MCU 896B | Microchip

The Microchip Technology PIC16LCE623T-04/SO is an 8-bit RISC microcontroller from the PIC16C family featuring 896 bytes (512 x 14) of One-Time-Programmable (OTP) program memory, 96 bytes of data RAM, and 128 bytes of EEPROM data memory. It executes instructions at a 4 MHz clock rate from a 5V supply and is housed in an 18-pin SOIC (0.295 inch / 7.50 mm width) surface-mount package. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, and configurable peripheral blocks into one package, designed to execute embedded control firmware in real time. Within the broader taxonomy, an 8-bit MCU such as the PIC16LCE623T-04/SO sits beneath the categories of embedded processor, microcontroller, PIC16 family, and finally the PIC16C sub-family using an OTP-programmed Harvard architecture. Its position in the system hierarchy is at the lowest computational tier, typically embedded inside consumer appliances, automotive subsystems, and industrial control loops where deterministic, low-cost, low-power control is required. Key differentiating features of this part include the OTP program memory that allows one-time field programming via Microchip development tools, an internal EEPROM block that retains user data without external storage, and a 4 MHz oscillator that supports both internal and external clocking. The 18-SOIC package simplifies hand-soldering and inspection during prototyping while remaining compatible with standard SMT assembly lines. The device also integrates core PIC peripherals - timers, interrupts, and digital I/O - sufficient for closed-loop control, sensor reading, and simple user-interface driving without external glue logic. At the architectural level, the PIC16LCE623 uses a Harvard architecture with separate program and data buses, a 14-bit instruction word, and a RISC instruction set designed for deterministic single-cycle execution. The CMOS process enables the "LC" low-power operating mode and the "E" extended-temperature grade, while the OTP array replaces flash to lower per-unit cost for high-volume, code-frozen production runs. Typical applications include consumer white-goods control boards, automotive body-electronics modules, low-cost sensor interfaces, LED lighting controllers, and battery-powered appliances where the OTP memory locks firmware at production and the on-chip EEPROM stores calibration or user settings. The wide operating voltage range and small SOIC footprint also make it suitable for space-constrained designs. When designing with the PIC16LCE623T-04/SO, note that OTP memory cannot be reprogrammed, so firmware must be fully validated before the device is programmed on the production line. The EEPROM write endurance (typically 1M cycles per the PIC16C EEPROM architecture) and brown-out reset configuration must be respected to ensure reliable field operation. This page synthesizes distributor stock and pricing data, drop-in compatible same-package alternatives, and practical design considerations not consolidated on the manufacturer datasheet, providing a single reference for engineers evaluating the PIC16LCE623T-04/SO.

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PIC16LCE623T-04I/SS - 8-Bit 4MHz MCU, 896B OTP, SSOP-20 | Microchip
PIC16LCE623T-04I/SS

PIC16LCE623T-04I/SS - 8-Bit 4MHz MCU, 896B OTP, SSOP-20 | Microchip

The Microchip PIC16LCE623T-04I/SS is an 8-bit RISC CMOS microcontroller from the PIC16 family, delivering 4 MHz CPU performance with 896 bytes of OTP program memory (512 x 14 words) in a 20-pin SSOP package, tape-and-reel packaged. The device operates from a 2.0 V to 6.0 V supply and integrates 96 bytes of SRAM and 128 bytes of EEPROM data memory. It exposes 13 digital I/O pins and is qualified for the industrial -40C to +85C temperature range. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, and configurable peripherals. The PIC16C/PIC16LC sub-family is one of Microchip's classic mid-range architectures, pairing a 14-bit instruction word with a Harvard bus and a RISC-style instruction set for deterministic, byte-efficient embedded code. The 'LC' suffix denotes the low-voltage CMOS variant, allowing operation down to 2.0 V for battery-powered designs. Within the broader taxonomy, PIC16LCE623 sits as: microcontroller -> embedded MCU -> 8-bit MCU -> PIC mid-range MCU -> CMOS semiconductor IC. Key features include an internal 4 MHz oscillator, 8-bit data path, 14-bit instruction word, hardware multiplier (by subtraction), 8-level hardware stack, two 8-bit timers (Timer0, Timer2) plus one 16-bit timer (Timer1), a Capture/Compare/PWM (CCP) module, an analog comparator with selectable reference, 5-channel 8-bit ADC, and an internal watchdog timer with on-chip RC oscillator. Brown-out reset and power-on reset are circuit-stable. The PIC16LC core supports in-circuit serial programming (ICSP) via RB6/RB7, eliminating the need for an external programmer socket. The PIC16LCE623T-04I/SS uses Microchip's nanoWatt technology extensions, providing low-power sleep modes and a programmable weak pull-up on PORTB. The CMOS process yields typical active current of less than 2 mA at 4 MHz / 5 V, and sleep currents in the microampere range. The 20-pin SSOP (5.30 mm body width, 0.65 mm pitch) supports surface-mount assembly in space-constrained boards where through-hole PDIP is impractical. Typical applications include low-cost consumer white goods, battery chargers, sensor signal conditioning, LED driving controllers, small appliance control, and industrial sensor interfaces. The wide 2.0-6.0 V operating range makes it directly suitable for both 3.3 V and 5 V rails. The 128-byte EEPROM supports user-configurable parameter storage without external serial EEPROM chips. Designers select this MCU for applications where deterministic 8-bit processing, low power, and 20-pin SSOP integration outweigh the need for larger flash memory or peripherals. When designing with this part, note that 'T' suffix denotes tape-and-reel, 'I' denotes industrial temperature grade (-40C to +85C), and '04' marks the 4 MHz maximum clock. The 'SS' package suffix identifies SSOP-20. Reserve the RB6/RB7 pins for ICSP if in-system programming is required. This page synthesizes distributor pricing, drop-in alternatives drawn from the same Microchip PIC16 family, and practical design notes not found in the bare manufacturer datasheet.

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PIC16LCE624-04/P - 8-bit PIC MCU 1.75KB OTP 4MHz 18-PDIP | Microchip
PIC16LCE624-04/P

PIC16LCE624-04/P - 8-bit PIC MCU 1.75KB OTP 4MHz 18-PDIP | Microchip

The Microchip Technology PIC16LCE624-04/P is an 8-bit RISC microcontroller from the PIC16C family, featuring 1.75KB (1K x 14) of One-Time Programmable (OTP) program memory, 96 bytes of RAM, and 13 digital I/O pins, housed in an 18-pin PDIP (0.300 inch, 7.62mm) through-hole package. It operates from a 2.0V to 6.0V supply and runs at a maximum clock speed of 4 MHz, with the 'LCE' suffix denoting the low-voltage / extended commercial temperature variant of the PIC16CE624 family. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and peripheral interfaces onto one die. The PIC16C/E family sits in the broader taxonomy of microcontroller -> embedded controller -> semiconductor IC, using a RISC Harvard-architecture core that executes one instruction per clock cycle (except branches). OTP program memory means each device can be programmed once by the user but cannot be erased, making this part well-suited to cost-sensitive volume production of fixed-function appliances. Key features include 13 bidirectional digital I/O pins, an integrated analog comparator, a Capture/Compare/PWM (CCP) module, a 5-channel 8-bit ADC, and an internal EEPROM data memory block. The wide 2.0V to 6.0V supply range supports both 3.3V and 5V designs, and the commercial temperature grade (0C to +70C) covers most indoor and office equipment environments. The PIC16LCE624-04/P is built around Microchip's 14-bit instruction word PIC16 architecture with separate program and data buses, allowing simultaneous instruction fetch and operand access. The 4 MHz oscillator input combined with a 4:1 internal divider yields a 1 MHz instruction cycle rate, providing predictable deterministic timing ideal for interrupt-driven control loops. Typical applications include white goods and appliance controls, simple sensor interfaces, low-cost motor control drivers, LED lighting controllers, and battery-powered consumer products. The 18-pin PDIP footprint is also popular in educational and hobbyist prototyping on breadboards and through-hole PCBs. When designing with this part, verify that your code is fully validated before programming because OTP cannot be reprogrammed; consider PIC16F-series flash equivalents for development and small-volume runs. This page synthesizes distributor pricing, drop-in PIC16 alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC16LCE624-04/SS - 8-bit PIC MCU 1.75KB OTP 4MHz SSOP-20
PIC16LCE624-04/SS

PIC16LCE624-04/SS - 8-bit PIC MCU 1.75KB OTP 4MHz SSOP-20

The Microchip Technology PIC16LCE624-04/SS is an 8-bit PIC microcontroller from the PIC16C family, featuring 1.75 KB (1K x 14) of One-Time Programmable (OTP) program memory, 96 bytes of RAM, and 13 general-purpose I/O pins, all packaged in a 20-pin SSOP (Shrink Small Outline Package). The device operates from a 2.5V to 5.5V supply and supports a maximum clock speed of 4 MHz (the "/04" speed grade), targeting low-power and cost-sensitive embedded designs. An 8-bit PIC microcontroller (MCU) is a compact, Harvard-architecture computing device built around an 8-bit data path, 14-bit instruction word, and integrated peripherals such as timers, comparators, and communication interfaces. Within the broader semiconductor hierarchy, MCUs sit between general-purpose microprocessors and ASICs: they embed CPU, memory, and I/O on a single die, enabling deterministic real-time control in embedded systems. The PIC16C family is one of Microchip's foundational mid-range MCU lines, predating the flash-based PIC16F series and offering OTP and ROM variants for high-volume, cost-sensitive products. Key features of the PIC16LCE624-04/SS include an internal oscillator option, an integrated analog comparator, a capture/compare/PWM (CCP) module, a watchdog timer with its own on-chip RC oscillator, and in-circuit serial programming (ICSP) via two pins. The device's low-power "L" variant supports battery-friendly operation, and the "E" designation (not present on this part) would indicate the extended-temperature grade; this MPN is the commercial-temperature grade (0°C to +70°C). The SSOP-20 footprint enables compact PCB layouts while still providing sufficient I/O for typical sensor, switch, and indicator-control applications. The PIC16LCE624-04/SS architecture uses a RISC instruction set with only 35 single-word instructions, simplifying code generation and easing firmware development. Its 14-bit instruction width delivers reasonable code density for the era's typical control loops, and the Harvard bus allows simultaneous instruction fetch and data access. Compared to flash-based successors, OTP memory requires a programmed device to be discarded and replaced if firmware changes are needed, which is acceptable in mature, high-volume production where code is finalized. Typical applications include consumer appliance control (washing machines, microwave ovens, coffee makers), simple industrial timers and counters, remote-control transmitters, low-end security keypads, sensor interface boards, and LED display drivers. The combination of analog comparator, timer, and PWM resources enables direct motor-control or lighting-control loops without external glue logic. When designing with this MCU, allocate the I/O budget carefully: 13 usable I/O pins must support all digital I/O plus any analog comparator or ICSP functions, which can reserve two additional pins during programming. The OTP memory constraint means firmware must be fully validated in development before committing to production programming, and an engineering stock of pre-programmed parts should be planned accordingly.

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PIC16LCE624-04E/P - 4MHz 8-Bit OTP MCU 1.75KB | Microchip
PIC16LCE624-04E/P

PIC16LCE624-04E/P - 4MHz 8-Bit OTP MCU 1.75KB | Microchip

The Microchip PIC16LCE624-04E/P is a low-power 8-bit CMOS microcontroller from the PIC16C family, featuring 1.75KB (1K x 14) of One-Time-Programmable (OTP) program memory, 96 bytes of SRAM, and 128 bytes of EEPROM data memory in an 18-pin PDIP through-hole package. The device operates at a maximum clock speed of 4MHz with a 200ns instruction cycle, employing a RISC architecture with 35 single-cycle instructions (branches take two cycles). A microcontroller (MCU) is a single-chip computer containing a CPU, memory, and peripherals designed for embedded control. The PIC16C series uses a Harvard RISC architecture, meaning the program bus and data bus are physically separate, allowing instruction fetch and data access to occur in the same cycle. Within this hierarchy, the PIC16LCE624 belongs to the PIC16 mid-range family (LC = low-power CMOS variant) used in cost-sensitive, low-power embedded applications where field-programmability is not required and OTP ROM is acceptable. Key features include 13 digital I/O pins, an 8-bit timer/counter (Timer0), a 16-bit timer/counter (Timer1), a Watchdog Timer (WDT) with its own on-chip RC oscillator, Power-On Reset (POR), and Brown-Out Reset (BOR). The part runs from a 2.5V to 5.5V supply, and its low-power CMOS design makes it suited to battery-powered or energy-conscious designs. The external oscillator interface supports crystal, ceramic resonator, or RC oscillator configurations. Architecturally, the PIC16LCE624 integrates the CPU core, OTP program memory, EEPROM data memory, SRAM, and peripheral set on a single die. Two I/O ports (PORTA, PORTB) are provided, with several pins multiplexed with analog comparator inputs and the Timer1 oscillator. The interrupt controller supports both core and peripheral interrupt sources with a vectored interrupt structure. Typical applications include appliance control, sensor signal conditioning front-ends, low-cost remote control transmitters, simple motor or relay drivers, lighting ballasts, and battery chargers. The PIC16LCE624 family is also widely used in education, hobby projects, and industrial timer or counter modules where deterministic single-cycle execution simplifies firmware development. When designing with this part, ensure the OTP program memory is burned by a compatible programmer before PCB assembly if the design enters volume production, or use a windowed/EPROM equivalent for prototypes. The 18-pin PDIP package simplifies hand-soldering and rework but consumes more board area than SOIC variants, so consider the SOIC/SSOP package options for space-constrained designs on the same die. This page synthesizes distributor pricing, parametric drop-in alternatives, and practical design notes for the PIC16LCE624-04E/P in formats not found in the manufacturer datasheet, optimized for engineers evaluating replacement parts and AI-assisted part search.

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PIC16LCE624-04E/SO - 8-Bit 4MHz OTP MCU, 1.75KB | Microchip
PIC16LCE624-04E/SO

PIC16LCE624-04E/SO - 8-Bit 4MHz OTP MCU, 1.75KB | Microchip

The Microchip PIC16LCE624-04E/SO is an 8-bit PIC16 microcontroller with a 4 MHz maximum clock input, 1.75 KB (1K x 14) of One-Time-Programmable (OTP) program memory, 96 bytes of RAM, and 128 bytes of EEPROM, housed in an 18-pin SOIC package (SO). It belongs to the PIC16C62x mid-range family and supports the standard 35-instruction set used across the PIC16 mid-range architecture. What is a microcontroller (MCU)? A microcontroller is a single-chip computer that integrates a CPU, non-volatile program memory, working RAM, data EEPROM, and configurable I/O peripherals. The PIC16LCE624 family uses a RISC Harvard architecture with separate program and data buses, allowing instruction fetch and operand access in a single cycle (200 ns at 20 MHz). Within the broader taxonomy, the PIC16LCE624 sits under: 8-bit microcontroller -> PIC16 mid-range family -> PIC16C62x sub-family -> Microchip PIC microcontrollers. Key features include 13 digital I/O pins, one 8-bit timer/counter (TMR0), a Watchdog Timer with its own on-chip RC oscillator, power-on reset, brown-out detection, and code protection. The device supports in-circuit serial programming (ICSP) via the RB6/RB7 pins, enabling firmware updates after PCB assembly. The OTP memory allows one-time field programming and is suited for production volumes where cost dominates over re-programmability. Typical applications include low-power consumer appliances, sensor interface modules, LED driver controllers, simple motor control, automotive body electronics subsystems, and industrial automation edge nodes. The wide 2.5V-5.5V operating range and low-power CMOS design make it suitable for battery-powered and energy-harvesting products. When designing with this part, plan for OTP programming flow (cannot be erased) and consider the PIC16F628 or PIC16F88 as flash-based drop-in equivalents if field re-programmability is required. Reserve RB6/RB7 for ICSP and avoid strapping them with strong pull-ups that could interfere with programming.

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PIC16LCE624-04I/P - 1.75KB OTP 8-bit MCU, 4MHz | Microchip
PIC16LCE624-04I/P

PIC16LCE624-04I/P - 1.75KB OTP 8-bit MCU, 4MHz | Microchip

The Microchip Technology PIC16LCE624-04I/P is an 8-bit RISC microcontroller from the PIC16C family with 1.75KB OTP program memory, 96 bytes of RAM, and 13 I/O pins, housed in an 18-pin DIP (0.300 inch, 7.62mm) through-hole package. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, data memory, and peripherals. The PIC16LCE624 belongs to Microchip's mid-range PIC16 family, which uses a 14-bit instruction set and Harvard architecture to deliver deterministic interrupt latency and predictable execution timing, while the 'L' suffix denotes the low-voltage (2.5V-5.5V) operation characteristic of this product line. This positions the device within the hierarchy of MCU -> 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. Key features include a 4MHz maximum operating clock frequency, 1.75KB (1K x 14) One-Time-Programmable (OTP) program memory, 96 bytes of data RAM, 128 bytes of EEPROM data memory, an internal analog comparator, capture/compare/PWM (CCP) module, and a 10-bit ADC that distinguishes this MCU from the smaller PIC16CE62x siblings. The architecture combines a RISC instruction set with Harvard bus separation, allowing simultaneous instruction fetch and data access. The wide 2.5V-5.5V operating range supports both 3.3V and 5V designs, while the OTP memory allows rapid prototyping and low-volume production without the cost of windowed or flash devices. Built-in peripherals minimize external component count, lowering BOM cost for cost-sensitive embedded designs. Typical applications include low-power industrial control loops, sensor interface front-ends, consumer appliance controllers, and legacy product maintenance systems where original PIC16CE624 sockets need a low-voltage drop-in replacement. The 18-pin DIP package simplifies prototyping on breadboards and through-hole PCB assemblies. When designing with this part, note that OTP memory cannot be reprogrammed; if in-field updates are required, choose a flash-based sibling such as PIC16F62x. Always include a 0.1uF decoupling capacitor on VDD adjacent to the pin, and respect the absolute maximum VDD of 6.5V to avoid latch-up. This page synthesizes current distributor pricing for the PIC16LCE624-04I/P, an 8-MHz-limited 4MHz drop-in alternatives list, and practical design notes that complement the manufacturer datasheet rather than duplicate it.

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PIC16LCE624-04I/SO - 8-bit OTP MCU, 4MHz, 1.75KB | Microchip
PIC16LCE624-04I/SO

PIC16LCE624-04I/SO - 8-bit OTP MCU, 4MHz, 1.75KB | Microchip

The Microchip Technology PIC16LCE624-04I/SO is an 8-bit PIC microcontroller from the PIC16C family, operating at up to 4 MHz with 1.75 KB (1K x 14) of One-Time Programmable (OTP) program memory, housed in an 18-pin SOIC package. It features 96 bytes of RAM, 13 digital I/O pins, and supports a supply voltage range of 2.5 V to 5.5 V, with operating temperatures from -40 °C to +85 °C. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, and configurable peripheral blocks. The PIC16 family is built around Microchip's proprietary Harvard RISC core, which separates program and data buses for deterministic instruction throughput - one instruction per clock cycle (except branches), making timing straightforward. PIC microcontrollers sit within the broader hierarchy of embedded microcontrollers -> microcontrollers -> embedded processors -> semiconductors. Key differentiating features include on-chip Brown-out Reset (BOR), Power-on Reset (POR), and a Watchdog Timer (WDT) for autonomous recovery in harsh environments. The OTP program memory is programmed once with a device programmer, making the part ideal for low-to-medium volume production where firmware is fixed and Flash reprogrammability is not required. The wide 2.5-5.5 V supply range simplifies battery-backed and unregulated-rail designs. The PIC16LCE624-04I/SO uses a 14-bit instruction word and 8-bit data path, with a 35-instruction set optimized for compiled C and hand-written assembly. Its RISC architecture delivers predictable interrupt latency, which is important for motor-control and sensor-timing applications. The part integrates 13 general-purpose I/O lines that share pins with the analog comparator, capture/compare/PWM, and timer peripherals. Typical applications include appliance controls, security and alarm panels, low-end consumer white goods, automotive body electronics (non-safety), remote controls, and sensor interface boards. The 4 MHz clock speed and 96-byte RAM are well matched to state-machine firmware and polling-based sensor reads. When designing, ensure the OTP programming step is added to the manufacturing flow - OTP parts cannot be re-programmed in-circuit. Decouple VDD with 100 nF close to the pin, and reserve the MCLR pin function if in-system debugging is required. This page synthesizes verified distributor pricing, pin-compatible alternatives, and engineering design notes not found in the standalone manufacturer datasheet.

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PIC16LCE624T-04/SO - 8-bit PIC MCU, 1.75KB OTP, 4MHz, 18-SOIC | Microchip
PIC16LCE624T-04/SO

PIC16LCE624T-04/SO - 8-bit PIC MCU, 1.75KB OTP, 4MHz, 18-SOIC | Microchip

The Microchip Technology PIC16LCE624T-04/SO is an 8-bit PIC16C-series RISC microcontroller operating at up to 4 MHz, packaged in an 18-pin SOIC (7.50 mm width) and shipped on Tape & Reel. The device integrates 1.75 KB of OTP program memory (1K x 14), 96 bytes of data RAM, and 128 bytes of EEPROM data storage, and exposes 13 general-purpose I/O pins. It is designed for low-power embedded applications running from a 2.5 V to 5.5 V supply. A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory, working RAM, and peripheral interfaces such as timers, ADC, and digital I/O. Within the broader hierarchy, the PIC16LCE624 belongs to the PIC16 family -> 8-bit PIC microcontrollers -> microcontroller -> embedded processor -> semiconductor. MCUs are the workhorse of embedded systems, providing deterministic real-time control in everything from consumer appliances to industrial controllers. Key features include the PIC16 enhanced mid-range core with a 14-bit instruction word, 8 hardware stack levels, an integrated brown-out reset (BOR), a watchdog timer (WDT), and a programmable code-protect bit for firmware security. The device supports in-circuit debugging via two ICD pins, and the LC prefix denotes an extended operating voltage range (2.5 V to 5.5 V) suitable for both 3.3 V and 5 V systems. The on-chip peripherals include one 8-bit timer/counter (Timer0) with an 8-bit prescaler, a 16-bit timer/counter (Timer1), and a 16-bit Capture/Compare/PWM module, plus an analog comparator and a voltage reference module. The 13 I/O pins support individual direction control and can sink/source up to 25 mA per pin, sufficient for direct LED drive. Typical applications include low-power remote control transmitters, sensor signal conditioning nodes, small consumer appliances such as coffee machines or microwave user interfaces, and simple industrial control logic. The 18-SOIC footprint keeps the part compatible with hand-solderable prototyping and reflow-compatible SMT assembly. When designing with this part, note that OTP memory cannot be re-programmed, so code must be fully validated in a windowed or flash equivalent (PIC16F) part before committing. Always honor the 2.5 V to 5.5 V supply range and place a 0.1 µF decoupling capacitor within 5 mm of the VDD pin. This page synthesizes distributor pricing, drop-in SOIC-18 alternatives, and practical design notes drawn from Microchip PIC16C62X documentation - value you will not find on a single distributor listing.

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PIC16LCE624T-04/SS - 8-Bit 4MHz OTP MCU w/ EEPROM | Microchip
PIC16LCE624T-04/SS

PIC16LCE624T-04/SS - 8-Bit 4MHz OTP MCU w/ EEPROM | Microchip

The Microchip Technology PIC16LCE624T-04/SS is an 8-bit PIC16 microcontroller from the PIC® 16C family, featuring 1.75KB (1K x 14) of One-Time Programmable (OTP) program memory, 96 bytes of RAM, and 128 bytes of EEPROM data memory, housed in a 20-pin SSOP surface-mount package. It operates from a 2V to 6V supply and supports a maximum clock speed of 4 MHz with a 200 ns instruction cycle, and is tape-and-reel packaged for high-volume assembly. An 8-bit microcontroller (MCU) is a programmable system-on-a-chip that integrates a CPU, non-volatile program memory, working RAM, and a configurable set of peripheral interfaces (I/O, timers, ADC, comparators, communication ports) into a single IC. Within the broader hierarchy, PIC16LCE624T-04/SS belongs to the 8-bit MCU class -> RISC microcontroller -> embedded controller -> semiconductor IC. Its OTP program memory and integrated EEPROM data memory place it in the classic "low-power control MCU" category used for cost-sensitive, code-stable embedded designs. Key differentiating specifications include 12 (industrial part number says 13) programmable digital I/O pins, integrated Brown-out Detect (BOD), Power-On Reset (POR), and a Watchdog Timer (WDT) for reliable operation. The device uses an external oscillator input and ships with the standard PIC 16C instruction set of 35 single-cycle instructions (except program branches which are two-cycle), enabling deterministic real-time response in control loops. The "L" in the part number denotes the low-voltage (2.0V to 6.0V) operating range, and the "04" denotes a 4 MHz maximum clock input. Typical applications include appliance control modules, HVAC remote panels, security sensor interfaces, low-power sensor conditioning, simple closed-loop fan or pump controllers, and battery-powered handheld instruments where code stability (OTP) is acceptable and the integrated EEPROM is leveraged for user-configurable parameters. It is also commonly seen in legacy industrial replacement boards. When designing with this part, treat the OTP memory as one-time-programmable - firmware bugs cannot be field-updated without device replacement. The integrated EEPROM is suitable for parameters that must survive power cycles but change occasionally, such as calibration or trim values. This page synthesizes verified distributor pricing (as of 2026-09-22), drop-in Microchip family alternatives in the same 20-SSOP footprint, and practical design considerations not summarized in the brief marketing datasheet excerpts.

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PIC16LCE624T-04E/SO - 4MHz 8-Bit OTP MCU, 1.75KB | Microchip
PIC16LCE624T-04E/SO

PIC16LCE624T-04E/SO - 4MHz 8-Bit OTP MCU, 1.75KB | Microchip

The Microchip Technology PIC16LCE624T-04E/SO is an 8-bit PIC microcontroller from the PIC16C family, featuring a 4MHz CPU core, 1.75KB (1K x 14) of One-Time Programmable (OTP) program memory, 96 bytes of RAM, and 13 I/O pins, all housed in an 18-pin SOIC (300 mil) wide-body surface-mount package. It operates from a 3.3V/5V supply and offers 35 single-cycle instructions (200ns), making it well suited for cost-sensitive embedded control in legacy and industrial designs. A PIC (Peripheral Interface Controller) microcontroller is a compact integrated circuit combining an 8/16/32-bit CPU core, non-volatile program memory (Flash/ROM/OTP), volatile data RAM, and configurable digital/analog peripherals on a single silicon die. PIC microcontrollers form part of the broader microcontrollers > microprocessors > integrated circuits > semiconductors taxonomy, and have been a foundational MCU architecture since the 1980s for low-power, deterministic embedded control. Key features of the PIC16LCE624T-04E/SO include 4MHz maximum operating frequency (200ns instruction cycle), 1024 x 14 bits of OTP program memory, 96 x 8 bytes of SRAM, a precision internal oscillator option, an on-chip analog comparator, and a watchdog timer with its own on-chip RC oscillator for reliable operation. The 8-bit RISC-like core provides 35 single-word instructions, simplifying code development and reducing overall firmware footprint compared to CISC MCUs. Technically, the device operates at 4MHz (industry standard for low-power industrial controllers), uses an external or internal oscillator, and includes brown-out detection for reliable power-on behavior. The 'LC' prefix designates the extended commercial temperature range (-40°C to +125°C) with the lower-voltage process node, while 'E' indicates the OTP windowless package variant. Typical applications include low-cost consumer electronics, industrial sensor interfaces, simple motor control, security alarm panels, and legacy automotive subsystems where cost-sensitive reliable control is critical. The 18-pin SOIC package also supports well hand-soldering and rework for low-volume production runs. When designing with this device, place a 0.1uF decoupling capacitor close to VDD and ensure the MCLR reset pin is properly pulled up. The OTP memory cannot be erased or rewritten, so firmware must be fully validated before programming - consider PIC16F or PIC16LF Flash variants (e.g., PIC16F716-I/SO) for development or field-updateable firmware. This page synthesizes distributor pricing, drop-in Microchip PIC16 family alternatives, and practical design notes not found in the manufacturer datasheet. Engineers can compare 5+ drop-in alternatives, all in the 18-SOIC footprint.

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PIC16LCE624T-04E/SS - 8-Bit 4MHz OTP MCU 1.75KB | Microchip
PIC16LCE624T-04E/SS

PIC16LCE624T-04E/SS - 8-Bit 4MHz OTP MCU 1.75KB | Microchip

The Microchip Technology PIC16LCE624T-04E/SS is an 8-bit RISC microcontroller from the PIC16C family, featuring 1.75KB (1K x 14) of One-Time Programmable (OTP) program memory, 96 bytes of RAM, and 128 bytes of EEPROM data memory in a 20-pin SSOP package. It operates at up to 4MHz clock speed with a 200ns single-cycle instruction execution and is offered in a tape-and-reel shipping format. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (program + data), and peripherals onto one silicon die. Within the broader semiconductor taxonomy, MCUs sit under microcontrollers -> embedded processors -> semiconductors. The PIC16C family in particular uses a RISC (Reduced Instruction Set Computer) architecture with a fixed 14-bit instruction width, distinguishing it from 8-bit CISC architectures such as the 8051. The "L" prefix denotes the low-voltage (2.5V to 5.5V) variant suitable for battery-powered designs, while the "CE" suffix indicates the integrated EEPROM data memory peripheral. Key features include 13 programmable digital I/O pins, an external oscillator interface, integrated Brown-out Detect and Reset (BOR), Power-On Reset (POR), and Watchdog Timer (WDT) for safety-critical applications. The OTP program memory allows one-time field programming ideal for low-cost production runs, and the 35-instruction RISC set enables deterministic interrupt response within 200ns to 400ns depending on branch type. The industrial-grade -40C to +125C operating temperature range qualifies the device for harsh-environment deployments. The PIC16LCE624 architecture uses a Harvard memory layout with separate program and data buses, eliminating fetch bottlenecks and enabling single-cycle execution of most instructions. The integrated EEPROM provides 1 million erase/write cycles endurance, suitable for parameter storage in field-deployed nodes. Brown-out detection protects against incorrect execution at marginal supply voltages during power transients. Typical applications include low-power industrial sensor nodes, consumer appliance control boards, automotive body electronics sub-modules, and replacement designs for legacy PIC16C systems. The 20-SSOP package offers a compact 5.30mm body width suitable for high-density PCB layouts. Designers often pair it with the PICkit programmer for in-circuit serial programming (ICSP) during prototyping. When designing with this part, ensure the VDD rail stays within 2.5V to 5.5V and respect the 4MHz maximum clock input. Brown-out detection should be enabled via the configuration bits to prevent code execution at sub-threshold voltages. The OTP memory cannot be reprogrammed - use the PIC16F624 (Flash-based) variant for development iteration. This page synthesizes distributor pricing, parametric data, drop-in alternatives, and practical design notes not found on standard distributor listings, enabling faster engineering decisions for legacy PIC16C replacement designs.

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PIC16LCE624T-04I/SS - 4MHz 8-bit OTP MCU, 1.75KB Flash | Microchip
PIC16LCE624T-04I/SS

PIC16LCE624T-04I/SS - 4MHz 8-bit OTP MCU, 1.75KB Flash | Microchip

The Microchip PIC16LCE624T-04I/SS is an 8-bit PIC microcontroller from the PIC® 16C family, delivering 4 MHz CPU performance with 1.75 KB (1K x 14) of One-Time Programmable (OTP) program memory, 96 bytes of RAM, and 128 bytes of EEPROM data memory in a 20-pin SSOP package. The device targets low-power embedded control with an industrial temperature range of -40°C to +85°C and supports 13 programmable I/O pins for digital interfacing. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (program + RAM + non-volatile data), and programmable I/O peripherals on one die. The PIC16CE62X family sits at the entry level of the PIC16 mid-range 8-bit architecture hierarchy (PIC10/12/16/18) and is commonly used for cost-sensitive control tasks where deterministic instruction execution and low BOM cost matter more than raw compute throughput. The "LC" prefix denotes a 3.0V-5.5V wide-range supply variant suitable for battery-backed designs. Key features include Brown-out Detect/Reset (BOR), Power-On Reset (POR), and a Watchdog Timer (WDT) for reliable field operation. The 13 I/O pins share the SSOP-20 footprint used across the PIC16CE623/624/625 family, allowing simplified PCB reuse when memory size is the only design variable. The OTP program memory is one-time writeable, which means firmware is committed at production programming time and cannot be field-updated - a different cost profile from Flash-based PIC16F devices. Architecturally, the PIC16LCE624 uses Microchip's 14-bit RISC instruction set with a Harvard-style separate program and data bus. The EEPROM data memory (128 bytes) supports byte-level in-application write/read for parameter storage. External oscillator configurations (XT, HS, LP, RC) are user-selectable via configuration bits, and the internal 4 MHz RC oscillator reduces external component count for cost-sensitive designs. Typical applications include appliance control (white goods, HVAC actuators), low-end sensor signal conditioning, simple motor and relay drivers, automotive body electronics (non-safety subsystems), smart metering peripherals, and battery-powered remote controls. The wide VDD range supports both 3.3V and 5V logic domains, and the SSOP-20 package allows reflow soldering on standard SMT lines. When designing with the PIC16LCE624, plan firmware versioning carefully: because the program memory is OTP, any firmware bug discovered after programming requires a new silicon lot. Maintain sufficient decoupling (100 nF + 10 µF) close to VDD/VSS and route the MCLR pin per Microchip application note guidelines to avoid spurious resets during in-circuit programming. This page synthesizes verified distributor pricing as of 2026-09-22, drop-in replacement candidates in the same SSOP-20 footprint, and practical design notes for engineers sourcing the PIC16LCE624T-04I/SS for new designs or legacy board production.

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PIC16LCE625-04/P - 3.5KB OTP 8-bit MCU, 4MHz, 18-PDIP | Microchip
PIC16LCE625-04/P

PIC16LCE625-04/P - 3.5KB OTP 8-bit MCU, 4MHz, 18-PDIP | Microchip

The Microchip Technology PIC16LCE625-04/P is an 8-bit RISC PIC microcontroller in the PIC16C family with 3.5KB (2K x 14) OTP program memory, 128 bytes of RAM, and 13 digital I/O pins, housed in a through-hole 18-pin PDIP package. The "LCE" suffix indicates a low-power CMOS variant operating from 2.5V to 5.5V with the "04" speed grade offering a 4 MHz maximum clock. The device is part of the legacy PIC16C6x mid-range family, designed for embedded control applications requiring compact code, low power, and robust I/O. A PIC microcontroller is a programmable single-chip computer built around a Harvard architecture with separate program and data buses, optimized for deterministic real-time control. Within the broader taxonomy, the PIC16C62x belongs to the mid-range PIC16 family, which sits between the baseline PIC10/12/16/17 families and the enhanced PIC18 family. It integrates CPU core, Flash/OTP program memory, RAM, EEPROM data memory, and peripherals (timers, A/D, USART, comparators) on a single die, and is programmed using Microchip's MPLAB X toolchain with XC8 C compiler support. Key features of the PIC16LCE625-04/P include 13 bidirectional I/O pins capable of 25 mA source/sink, an enhanced 8-bit A/D converter, two 8-bit timers plus one 16-bit timer, a watchdog timer with on-chip RC oscillator, and an internal 4 MHz RC oscillator option that eliminates the external crystal in many designs. The device supports in-circuit serial programming (ICSP) via two pins, allowing firmware updates after PCB assembly. Brown-out reset, power-on reset, and a wide commercial operating temperature range ensure reliable field operation. Typical applications include appliance control, sensor signal conditioning, low-speed serial communication bridges, and battery-powered instrumentation. The combination of OTP memory (one-time programmable, lower unit cost than Flash) and through-hole PDIP packaging makes this part especially suitable for hobbyist projects, educational kits, and legacy industrial controllers. For new designs, Microchip recommends the pin-compatible PIC16F family Flash parts, but the PIC16LCE625-04/P remains widely stocked for maintenance of existing installations. When designing with this part, engineers should provide adequate bulk decoupling (100 nF plus 10 uF near VDD) and route the MCLR reset pin with proper pull-up. For low-power designs, the LP oscillator mode reduces current consumption to microamps in sleep mode. Engineers should also note that OTP memory cannot be erased or rewritten, so a Flash equivalent (such as PIC16F628A in the same 18-pin DIP footprint) is preferable for prototype and low-volume development. This page synthesizes distributor pricing, pin-compatible drop-in alternatives (both same-brand Microchip variants and competitor equivalents in 18-PDIP), and practical design notes drawn from the Microchip PIC16C62x datasheet family, providing information not consolidated on any single distributor or manufacturer page.

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PIC16LCE625-04/SO - 8-bit MCU, 4MHz, 3.5KB OTP, 18-SOIC | Microchip
PIC16LCE625-04/SO

PIC16LCE625-04/SO - 8-bit MCU, 4MHz, 3.5KB OTP, 18-SOIC | Microchip

The Microchip Technology PIC16LCE625-04/SO is an 8-bit CMOS RISC microcontroller from the PIC16C family, featuring 3.5KB (2K x 14) of One-Time Programmable (OTP) program memory, 128 bytes of data RAM, and 128 bytes of EEPROM, all housed in an 18-pin SOIC (Small Outline Integrated Circuit) package. It operates at a maximum clock frequency of 4MHz from a 2.5V-5.5V low-voltage supply and provides 13 digital I/O pins suitable for general-purpose embedded control. An 8-bit microcontroller (MCU) is a small computer-on-a-chip that integrates a CPU, program memory, data RAM, and peripherals (timers, ADC, I/O, communication interfaces) into a single IC. Microcontrollers sit within the broader hierarchy of embedded processors -> microcontrollers -> 8-bit MCUs -> PIC16 family, and they form the lowest-cost, lowest-power tier of programmable logic used in consumer appliances, industrial sensors, and battery-powered IoT nodes. The PIC16C core uses a Harvard RISC architecture with a 14-bit instruction word, which keeps code density high and instruction cycles deterministic at 4 clock ticks per instruction. Key features of the PIC16LCE625-04/SO include the 3.5KB OTP program memory for one-time-only firmware storage, an internal comparator for analog signal conditioning, a 5-channel 8-bit ADC, and a capture/compare/PWM (CCP) module. Its low-voltage 'LC' family designation supports extended operation down to 2.5V, and the 'E' in the variant suffix indicates an enhanced EEPROM. The device includes a watchdog timer, power-on reset, and brown-out reset for robust embedded operation. The 18-SOIC package provides a 7.50 mm body width suitable for hand-soldering and standard 1.27 mm pitch SOIC footprints. Architecturally, the PIC16LCE625 uses a 14-bit program-word width with separate data and program buses (Harvard architecture), enabling simultaneous fetch and access of operands. The OTP memory cell is a one-time-only programmable EPROM cell, which historically made this part economical for low-volume production but unsuited to field upgrades. For designs that require re-programmability, Microchip offers flash-based PIC16F equivalents in the same 18-pin SOIC package family. Typical applications include low-cost consumer electronics, appliance controllers, sensor signal conditioning, battery-powered measurement instruments, and industrial control boards. The 13 I/O pins and integrated ADC make it suitable for reading a few analog sensors and driving a small display or relay outputs. When designing with this device, plan the firmware to fit within 2K 14-bit words (about 2048 instructions), select the internal 4MHz RC oscillator to minimize external component count, and ensure the EEPROM endurance budget (typically 1M write cycles) is respected for any parameter storage. For new designs, evaluate flash-based PIC16F alternatives that drop into the same 18-SOIC footprint and provide re-programmability and in-circuit debugging via ICSP. This page synthesizes distributor pricing, drop-in compatible same-package alternatives, and practical design notes for the PIC16LCE625-04/SO that go beyond the manufacturer datasheet and major distributor listings.

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PIC16LCE625-04/SS - 8-bit MCU, 3.5KB OTP, 4MHz, SSOP-20 | Microchip
PIC16LCE625-04/SS

PIC16LCE625-04/SS - 8-bit MCU, 3.5KB OTP, 4MHz, SSOP-20 | Microchip

The Microchip Technology PIC16LCE625-04/SS is an 8-bit RISC microcontroller from the PIC® 16C family, featuring 3.5 KB of OTP program memory, 128 bytes of RAM, and 13 general-purpose I/O lines. The "-04" speed grade designates a 4 MHz maximum clock frequency, while the "LCE" prefix indicates a low-voltage, commercial-temperature variant operating from 2.0 V to 6.0 V. The part is housed in a 20-pin SSOP (Shrink Small Outline Package) with 0.65 mm pitch, suited for surface-mount assembly on compact boards. A microcontroller (MCU) is a single-chip computer that integrates processor core, program memory, RAM, and peripherals into one device. The PIC16C series uses a Harvard RISC architecture with a 14-bit instruction word, optimized for deterministic execution in embedded control applications. Within the broader semiconductor taxonomy, an 8-bit MCU falls under integrated circuits > microcontrollers, and the PIC16CE6xx sub-family is positioned as a low-power, OTP-programmable generation predating the flash-based PIC16Fxxx families. Key differentiating features include two on-chip analog comparators, a Brown-Out Detect (BOD) circuit, Power-On Reset (POR), a Watchdog Timer (WDT) for reliable operation, and an EPROM/OTP program memory that supports one-time programming at production volume. The 13 I/O pins can each be individually configured for digital input or output, and the architecture supports interrupt-driven control with low-cost external components. This part operates across the commercial 0°C to +70°C temperature range with a 4 MHz oscillator. Designers value the PIC16CE625's combination of low-voltage operation, integrated analog comparators, and the deterministic instruction set, which together reduce BOM cost and PCB footprint in simple control loops. Typical applications include appliance control panels, low-power sensor interfaces, security peripherals, small consumer devices, and battery-powered instrumentation. For designs migrating to flash-based parts, the PIC16F676 is a near-pin-compatible drop-in successor with the same SSOP-20 footprint and 10-bit ADC instead of comparators. When designing with this OTP MCU, plan firmware and code patterns carefully before wafer/board commitment, since OTP does not permit field updates. Add a low-VDD detection window via the BOD threshold and reserve a debug/test pad on RA0/TOCKI for in-circuit calibration.

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PIC16LCE625-04E/P - 8-Bit 4MHz OTP MCU, 13 I/O | Microchip
PIC16LCE625-04E/P

PIC16LCE625-04E/P - 8-Bit 4MHz OTP MCU, 13 I/O | Microchip

The Microchip Technology PIC16LCE625-04E/P is an 8-bit PIC microcontroller IC from the PIC 16C family, featuring a 4MHz maximum clock, 3.5KB (2K x 14) of One-Time-Programmable (OTP) program memory, 128 bytes of RAM, and 128 bytes of EEPROM data storage, housed in an 18-pin PDIP through-hole package. Operating from 2.5V to 5.5V, this LC-prefixed variant targets low-voltage, low-power embedded designs. The device exposes 13 digital I/O pins and integrates a 10-bit ADC, two analog comparators, a watchdog timer, and a single 8-bit timer/counter. A microcontroller (MCU) is a single-chip computer containing a CPU, memory (program + data), and peripherals such as timers, ADC, communication interfaces, and I/O. Within the embedded hierarchy, the PIC16LCE625 sits at the low-power, mid-range 8-bit tier of Microchip's PIC family, below the enhanced 16-bit PIC24/dsPIC families and above simple 6/8-pin baseline devices. It is suited for compact, cost-sensitive applications that require non-volatile program storage with moderate peripheral integration. Key differentiating features include a 35-instruction RISC architecture with 200ns single-cycle execution (except branches, which take two cycles), an internal/external oscillator option, and an in-circuit serial programming (ICSP) interface for OTP programming. The LC voltage range and built-in EEPROM enable portable battery-powered designs that must retain user-configurable parameters across power cycles without external non-volatile memory. Brown-out reset and power-on reset provide reliable startup in noisy industrial environments. Typical applications include low-power sensor conditioning boards, automotive body controllers, industrial control front-ends, appliance user-interface modules, and remote sensor nodes. The 13 I/O pins plus analog comparators make it especially well-suited for threshold-detection circuits and signal-front-end conditioning with software-driven post-processing. When designing with this part, ensure the OTP programming step is performed before final PCB assembly for cost reasons - OTP devices cannot be reprogrammed. Choose an F-series PIC16F equivalent (such as PIC16F630) if Flash reprogrammability is required during prototyping; F-series parts share the same pinout but add ICSP and Flash memory at higher unit cost. This page synthesizes distributor pricing, same-family drop-in alternatives, parametric comparison, and practical design notes beyond what is found in the manufacturer datasheet alone.

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PIC16LCE625-04E/SO - 8-Bit 4MHz OTP MCU, 3.5KB | Microchip
PIC16LCE625-04E/SO

PIC16LCE625-04E/SO - 8-Bit 4MHz OTP MCU, 3.5KB | Microchip

The Microchip Technology PIC16LCE625-04E/SO is an 8-bit PIC16C-series microcontroller built on a RISC architecture with 35 single-cycle instructions, operating at 4 MHz from a 3.0 V to 5.5 V supply. The device integrates 3.5 KB (2K x 14) of One-Time Programmable (OTP) program memory, 128 bytes of data RAM, and 128 bytes of EEPROM data memory inside an 18-pin SOIC package. According to the Verified Web Data, the part exposes 13 general-purpose digital I/O pins, supports external oscillator inputs, and executes instructions in 200 ns (200 ns branch penalty of two cycles). A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, I/O peripherals, and often non-volatile data storage. The PIC16C family uses a Harvard architecture with separate program and data buses, enabling single-cycle instruction execution and deterministic interrupt latency. Within the broader taxonomy, the PIC16LCE625 sits in the PIC microcontroller -> 8-bit MCU -> microcontroller -> embedded processor -> semiconductor hierarchy, targeting cost-sensitive embedded control rather than high-throughput signal processing. Key features include ultra-low-power "LC" operation across the 2.5 V to 5.5 V range, an internal watchdog timer, power-on reset, brown-out detection, and a capture/compare/PWM (CCP) peripheral. The 'E' suffix designates the Extended commercial temperature range of -40C to +125C, while '04' specifies a 4 MHz maximum oscillator frequency. The 'SO' package is the 18-pin SOIC (0.295 in / 7.50 mm body width), a wide-body variant suitable for hand-soldered prototypes and production SMT lines alike. Typical applications span consumer appliance controllers, sensor signal conditioning, low-speed UART-based human-interface boards, and battery-backed instrumentation. The 13 I/O pins are sufficient for keypad scanning, LED driving, and small LCD interfaces. The 128-byte EEPROM provides convenient storage of calibration constants, user preferences, or device serial numbers without an external memory chip. When designing with this MCU, verify that the chosen 4 MHz resonator or crystal meets the timing requirements in the oscillator section of the datasheet and that decoupling capacitors (typically 100 nF) are placed within a few millimetres of VDD. For new designs, prefer the Flash-based PIC16F equivalents (e.g., PIC16F628A) for in-circuit re-programmability; the PIC16LCE625 OTP variant suits only production volumes where firmware is final.

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PIC16LCE625-04E/SS - 8-bit OTP MCU, 4MHz, 3.5KB | Microchip
PIC16LCE625-04E/SS

PIC16LCE625-04E/SS - 8-bit OTP MCU, 4MHz, 3.5KB | Microchip

The Microchip PIC16LCE625-04E/SS is an 8-bit PIC16 microcontroller in a 20-pin SSOP package featuring 3.5KB (2K x 14) of One-Time Programmable (OTP) program memory, 128 bytes of RAM, and 128 bytes of EEPROM, operating at a 4 MHz core speed. The device belongs to Microchip's PIC16C mid-range family, offering 13 digital I/O pins, an external oscillator interface, and an operating voltage range of 2.5V to 5.5V with an extended industrial temperature range of -40°C to +125°C. An OTP microcontroller is a type of embedded controller that uses one-time-programmable ROM for code storage - the program is written once via a device programmer and cannot be erased or rewritten, making OTP parts ideal for cost-sensitive high-volume production where firmware is stable. Within the broader taxonomy, this part is a microcontroller (MCU) -> 8-bit MCU -> PIC16 family -> PIC16C mid-range core -> RISC microcontroller -> embedded processor -> semiconductor. OTP differs from Flash (re-programmable in-circuit) and EPROM (UV-erasable windowed) variants - OTP offers the lowest per-unit cost at the price of field-upgradeability. Key differentiating features include the 14-bit wide instruction word with only 35 single-cycle instructions to learn (200 ns instruction cycle at 20 MHz input, except branches which are 2-cycle), enabling rapid firmware development. The integrated 128-byte EEPROM provides non-volatile data storage for parameters, calibration values, or user settings that survive power cycles. Brown-out reset, watchdog timer, and power-on reset are standard on-chip peripherals, alongside one analog comparator and a capture/compare/PWM (CCP) module for basic mixed-signal tasks. The PIC16C core uses a Harvard architecture with separate program and data buses, allowing instruction fetch and operand access in the same cycle. The 8-level deep hardware stack, two 8-bit file-select registers for banked RAM access, and interrupt-driven design with prioritized vectored interrupts make the PIC16LCE625 a workhorse for deterministic real-time control. The 'LC' suffix indicates a wide-voltage (2.5V-5.5V) variant supporting both 3.3V and 5V rails; the 'E' grade extends the temperature range to +125°C; '04' designates a 4 MHz rated speed grade; 'SS' denotes the 20-pin SSOP surface-mount package. Typical applications include low-cost consumer appliances, sensor signal conditioning front-ends, LED lighting controllers, simple motor and solenoid drivers, and industrial automation modules where deterministic 8-bit control suffices. Designers use it in battery-powered devices thanks to the 2.5V lower rail, in white-goods appliances requiring +125°C headroom, and in remote controls and toys where BOM cost dominates. When designing with this OTP part, plan firmware carefully and reserve one-time programmable PID budget for late changes - use an emulated Flash variant (PIC16F) during development and migrate to OTP for production cost-down. Account for SSOP thermal limitations above 80°C ambient and provide adequate decoupling on VDD/VSS pairs per datasheet Section 2. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design considerations not consolidated in any single manufacturer or distributor source.

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