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PIC16C72A-20I/SS - 8-Bit 20MHz 3.5KB OTP MCU 28-SSOP | Microchip
PIC16C72A-20I/SS

PIC16C72A-20I/SS - 8-Bit 20MHz 3.5KB OTP MCU 28-SSOP | Microchip

The Microchip Technology PIC16C72A-20I/SS is an 8-bit RISC CMOS microcontroller from the PIC16C family, featuring a 20 MHz maximum clock speed, 3.5 KB (2K x 14) of One-Time-Programmable (OTP) program memory and 128 bytes of data RAM, housed in a 28-pin SSOP package. The device integrates a 5-channel 8-bit Analog-to-Digital Converter (ADC), two additional timers, a capture/compare/PWM module, and a USART, delivering the PIC16C5X/PIC12CXXX upward-compatible instruction set with 35 single-word instructions. A microcontroller (MCU) is a single-chip computer containing a CPU core, non-volatile program memory, working RAM, and a set of programmable peripheral interfaces. The 8-bit class of microcontrollers dominates cost-sensitive embedded control tasks, where deterministic instruction timing and low power are valued more than raw throughput. PIC microcontrollers, originally pioneered by General Instrument and popularized by Microchip Technology, use a Harvard architecture with separate program and data buses and a reduced instruction set, allowing most instructions to execute in a single instruction cycle. The PIC16C72A executes instructions in 200 ns at 20 MHz, and its core features an 8-level deep hardware stack, direct/indirect/relative addressing modes, and a programmable code protection bit. The five 8-bit ADC channels with input multiplexing support sensor acquisition without external analog components, while the 8-bit/16-bit Timer0/Timer1/Timer2 blocks and CCP module support PWM-driven motor, lighting and switching applications. Operating from 2.5 V to 5.5 V (industry-standard 5 V), the PIC16C72A includes brown-out reset, power-on reset, watchdog timer with its own on-chip RC oscillator, and an in-circuit serial programming interface. The 28-SSOP package (209 mil body) provides 22 digital I/O lines with high-current sink/source capability. The OTP memory is one-time programmable, requiring factory or field programming before deployment. Typical applications include appliance control, automotive body and chassis subsystems, HVAC fan and damper control, smart-card readers, battery chargers, and small-form-factor sensor interface boards. The wide operating temperature range of -40 °C to +85 °C (industrial grade, denoted by the I suffix) supports harsh environments. When designing with this device, ensure adequate decoupling (100 nF ceramic at VDD) and reserve an MCLR pull-up since the master-clear pin is used for in-circuit programming. The OTP memory restricts firmware iteration in production; consider the PIC16F72 flash variant for development. This page synthesizes distributor pricing, drop-in alternative MPNs, and practical design guidance not consolidated on the manufacturer datasheet.

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PIC16C72A/JW - 8-Bit OTP MCU 20MHz 3.5KB EPROM 28-CerDip | Microchip
PIC16C72A/JW

PIC16C72A/JW - 8-Bit OTP MCU 20MHz 3.5KB EPROM 28-CerDip | Microchip

The Microchip Technology PIC16C72A/JW is a high-performance 8-bit CMOS OTP-based microcontroller built on Microchip's PIC® architecture, delivering 200 ns instruction execution at 20 MHz clock with 3.5 KB (2K x 14) of UV-erasable EPROM program memory in a 28-pin windowed CERDIP package. The /JW suffix indicates a UV-erasable CERDIP-28 (0.300 inch) variant that supports development, prototyping, and field reprogramming of legacy designs where flash-less code updates are still required. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (ROM/EPROM/Flash), data RAM, and programmable I/O peripherals on one die. Microcontrollers sit within the broader taxonomy: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. The PIC16C72A family belongs to Microchip's mid-range PIC® lineup (PIC16C12/PIC16C71/PIC16C71x/PIC16C7x series), which adds enhanced peripherals such as a 10-bit ADC, PWM, capture/compare and a synchronous serial port over the baseline PIC16C5X architecture. Key features include 5 channels of 8-bit A/D conversion, two additional 8-bit timers (Timer0, Timer1, Timer2), a Capture/Compare/PWM (CCP) module, a synchronous serial port configurable for either 3-wire SPI or 2-wire I²C, 22 digital I/O pins, a hardware USART/SCI channel, and 128 bytes of RAM. The device operates from 4.0 V to 5.5 V, executes all 35 single-word instructions in one cycle (200 ns at 20 MHz), and supports in-circuit serial programming (ICSP) plus in-circuit debugging through the same two pins used for production programming. The PIC16C72A uses a RISC Harvard-architecture core with separate program and data buses, allowing instruction fetch and operand access in the same cycle. The CMOS process, combined with nanoWatt-style sleep/idle modes, achieves lower operating current than the older PIC16C5X NMOS family. The CCP module generates PWM outputs for motor and lighting control and measures pulse widths for sensor interfaces; the 8-bit ADC (successive approximation) reads up to five analog channels with software-selectable reference voltages. Typical applications include industrial motor control (PWM-driven H-bridges and BLDC drivers), sensor signal conditioning (analog front-end with on-chip ADC), automotive body electronics (low-cost node controllers), legacy embedded product retrofits, and educational/prototyping platforms where the windowed CERDIP allows fast UV erasure during firmware iteration. The /JW variant is also widely used in avionics and military subsystems that require verified, non-flashable code storage with field re-programmability. When designing with this part, remember that the OTP EPROM is erased only by UV light through the quartz window; exposure to direct sunlight or fluorescent tubes will eventually corrupt the program memory. Plan for proper socketing, ESD handling, and storage in opaque antistatic tubes. For volume production migrate to the flash-based PIC16F72 (drop-in compatible for most peripherals) which removes the UV-erasure step entirely. This page consolidates distributor pricing, drop-in CERDIP-28 alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC16C72AT-04/SO - 8-Bit OTP MCU 4MHz 3.5KB 28-SOIC | Microchip
PIC16C72AT-04/SO

PIC16C72AT-04/SO - 8-Bit OTP MCU 4MHz 3.5KB 28-SOIC | Microchip

The Microchip Technology PIC16C72AT-04/SO is an 8-bit PIC microcontroller built on a RISC architecture, integrating 3.5KB (2K x 14) of One-Time-Programmable (OTP) program memory, 128 bytes of RAM, and 22 digital I/O lines in a 28-pin SOIC package. The device operates at 4 MHz from a 4V to 5.5V supply and is rated for the commercial temperature range, providing a balance of cost and peripheral integration for embedded designs that do not require in-system reprogrammability. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, and peripheral interfaces. PIC microcontrollers use a Harvard RISC core with only 35 single-word instructions, where every instruction executes in one instruction cycle except program branches, which take two. This compact instruction set keeps firmware small and deterministic, which is why PIC MCUs remain common in cost-sensitive industrial and consumer products. Key features include five 8-bit I/O ports, a 5-channel 8-bit Analog-to-Digital Converter (ADC), a Capture/Compare/PWM (CCP) module, a Synchronous Serial Port (SSP) supporting SPI and I2C, a USART for asynchronous serial communication, and two 8-bit timers plus one 16-bit timer. These integrated peripherals allow a single MCU to replace multiple external components, reducing BOM cost and PCB area in sensor-interface, motor-control, and human-machine interface designs. The PIC16C72A uses a 14-bit instruction word and the standard mid-range PIC core, which means existing PIC16C7x firmware and development tools can be ported with minimal changes. The 4 MHz speed grade is the slowest of the PIC16C72A family (which also includes 10 MHz and 20 MHz grades), making the -04 part suitable for applications where low electromagnetic emissions or relaxed timing budgets are more important than raw throughput. According to the Microchip datasheet, the device supports in-circuit serial programming via two pins on most package variants. Typical applications include simple motor control loops using the CCP PWM channel, sensor data acquisition with the 8-bit ADC, RS-232 bridges using the USART, and front-panel controllers for appliances and industrial equipment. The OTP program memory is programmed once at production time, which makes the PIC16C72AT-04/SO well suited to high-volume, fixed-function products where firmware rarely changes. When designing with this device, ensure the brown-out reset voltage is correctly configured in the configuration word and that decoupling capacitors (typically 0.1 uF) are placed close to VDD and VSS pins. OTP memory cannot be erased, so verify firmware thoroughly using a windowed (JW) or flash equivalent during development before committing to the OTP part for production. This page synthesizes distributor pricing, pin-compatible drop-in alternatives (including PIC16C72A and PIC16C72 same-package variants), and practical design notes that supplement the manufacturer datasheet.

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PIC16C72AT-04/SS - 8-Bit 4MHz OTP MCU 3.5KB | Microchip
PIC16C72AT-04/SS

PIC16C72AT-04/SS - 8-Bit 4MHz OTP MCU 3.5KB | Microchip

The Microchip Technology PIC16C72AT-04/SS is an 8-bit CMOS microcontroller from the PIC16C family, featuring a 4 MHz internal operating frequency, 3.5 KB (2K x 14) of One-Time-Programmable (OTP) program memory, 128 bytes of RAM, and 22 digital I/O pins in a 28-pin SSOP package. The 'T' suffix indicates tape-and-reel packaging, the '-04' speed grade denotes a 4 MHz maximum oscillator frequency, and the '/SS' suffix specifies the 0.209 inch (5.30 mm) narrow-body Shrink Small Outline Package. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (program + data), and programmable I/O peripherals. The PIC16C7x family belongs to Microchip's mid-range architecture, sitting between baseline (PIC10/12/16C5x) and enhanced mid-range (PIC16F1xxx) tiers. The mid-range RISC core executes 35 single-word instructions, with all instructions completing in one instruction cycle except program branches (two cycles). The 8-bit data path and 14-bit instruction word are characteristic of this generation, providing efficient code density for embedded control applications. Key features include a built-in 8-channel 8-bit Analog-to-Digital Converter (ADC), two 8-bit timers (Timer0 and Timer2) plus one 16-bit timer (Timer1), a Universal Synchronous Asynchronous Receiver Transmitter (USART/SCI) for serial communication, an I2C/SPI-compatible Synchronous Serial Port (SSP), and a watchdog timer with its own on-chip RC oscillator for reliable operation. The supply voltage range is 4.0V to 5.5V (commercial/industrial grade), and the device operates across 0C to +70C. Power consumption is minimized through the SLEEP mode and the wide operating voltage range, making this MCU suitable for both line-powered and battery-assisted applications. The PIC16C72A uses Harvard architecture with separate program and data buses, allowing instruction fetch to occur in parallel with data access. This yields nearly 4 MIPS sustained throughput at 4 MHz oscillator input. The OTP program memory is programmed once via the In-Circuit Serial Programming (ICSP) interface and cannot be erased, making this part ideal for mature production designs where firmware is finalized. Designers requiring reprogrammability during development should select the PIC16F72 Flash-based equivalent. Typical applications include industrial process control, sensor signal conditioning, automotive body electronics (non-safety-critical subsystems), HVAC control systems, and consumer appliance control. The integrated ADC simplifies analog sensor interfacing for temperature, pressure, and flow measurement. When designing with this part, plan for OTP-only programming in production and stock sufficient inventory. For prototype or low-volume runs where field updates may be required, evaluate the PIC16F72 or PIC16C72 JW (windowed EPROM) variant. Ensure decoupling capacitors (100 nF + 10 uF bulk) are placed within 5 mm of VDD, and that MCLR is pulled high through a 10 kohm resistor for normal operation. This page synthesizes distributor pricing, drop-in same-package alternatives drawn from the same PIC16C7x family, and practical design notes not found on individual distributor listings.

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PIC16C72AT-04E/SO - 8-Bit 4MHz OTP MCU 3.5KB | Microchip
PIC16C72AT-04E/SO

PIC16C72AT-04E/SO - 8-Bit 4MHz OTP MCU 3.5KB | Microchip

The Microchip Technology PIC16C72AT-04E/SO is an 8-bit PIC CMOS OTP (One-Time Programmable) microcontroller with 3.5KB (2K x 14) of program memory, 128 bytes of RAM, and 22 I/O lines, housed in a 28-pin SOIC package rated for the extended -40C to +125C industrial temperature range. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (ROM/EPROM/Flash/OTP), data memory (RAM), and peripherals onto one silicon die. PIC microcontrollers use a RISC (Reduced Instruction Set Computer) architecture with only 35 single-word instructions, making them easy to learn and program. The PIC16C72A belongs to Microchip's mid-range PIC16 family, positioned between the baseline PIC10/12/16 series and the enhanced PIC18 family. MCUs sit at the bottom of the embedded computing hierarchy: microcontroller -> embedded processor -> integrated circuit -> semiconductor, and serve as the brain of countless industrial, automotive, and consumer products. Key features of this variant include a 4 MHz maximum operating clock frequency (200 ns instruction cycle), an integrated 5-channel 8-bit Analog-to-Digital Converter (ADC), two additional 8-bit timers plus one 16-bit timer/counter, a USART/SCI serial port, and a capture/compare/PWM (CCP) module. The 4 MHz speed grade uses the "-04" suffix per Microchip's nomenclature, distinguishing it from 10 MHz (-10) and 20 MHz (-20) siblings in the same family. The architecture employs a Harvard-style separate program/data bus design with a 14-bit instruction word, enabling single-cycle instruction execution except for program branches (two cycles). The OTP EPROM program memory at 3.5KB (2K x 14) is one-time programmable - once programmed, it cannot be erased, making the PIC16C72A suitable for production volumes where the cost of flash is unnecessary and the device will not require firmware updates. Typical applications include industrial control systems, automotive subsystems, consumer electronics, sensor interface modules, and low-to-medium complexity embedded control tasks that benefit from the ADC for analog signal acquisition. The 28-SOIC footprint also supports hand-soldering and standard SMT assembly lines. When designing with this device, ensure the supply voltage stays within the 4.0V to 5.5V operating range; operation below 4.0V may cause EPROM read errors. Decouple VDD/VSS with a 0.1 uF ceramic capacitor placed within 5 mm of the pins, and reserve the MCLR pin for a proper reset circuit with the appropriate pull-up. This page synthesizes distributor pricing, drop-in alternative cross-references, and practical design considerations not found in the manufacturer datasheet alone.

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PIC16C72AT-04E/SS - 8-bit 4MHz OTP MCU 3.5KB | Microchip
PIC16C72AT-04E/SS

PIC16C72AT-04E/SS - 8-bit 4MHz OTP MCU 3.5KB | Microchip

The Microchip Technology PIC16C72AT-04E/SS is an 8-bit CMOS microcontroller in the PIC16C family, featuring 3.5KB (2K x 14) of One-Time Programmable (OTP) program memory, 128 bytes of RAM, and a 4MHz internal operating frequency, housed in a 28-pin SSOP package with tape-and-reel packaging. The device operates from a 4V to 5.5V supply and integrates peripherals including a 5-channel 8-bit A/D converter, PWM module, Brown-out Reset (BOR), Power-On Reset (POR), Watchdog Timer (WDT), and two 8-bit timers plus one 16-bit timer. An 8-bit PIC microcontroller is a Harvard-architecture RISC device optimized for embedded control. In the broader hierarchy, PIC16C sits within the PICmicro mid-range family, which itself belongs to the 8-bit microcontroller category, itself a sub-class of microcontrollers, embedded processors, and ultimately semiconductors. The OTP program memory means each device can be programmed once, suiting low-to-medium volume production where firmware is finalized and field updates are not anticipated. Key features of the PIC16C72AT-04E/SS include the high-performance RISC CPU with only 35 single-word instructions to learn, all single-cycle except program branches (which take two cycles), 22 general-purpose digital I/O pins, and the integrated A/D converter that eliminates the need for an external ADC chip in sensor-interface designs. The 4MHz maximum clock input provides a 1 microsecond instruction cycle time, balancing throughput against power consumption in cost-sensitive applications. The device uses a 14-bit instruction word and 8-bit data path, with a 200 ns minimum instruction cycle at 20 MHz. The PIC16C72A family supports both internal and external oscillator modes and offers in-circuit serial programming (ICSP) via two dedicated pins, simplifying manufacturing test and reducing programming socket cost. Typical applications include appliance control, sensor signal conditioning with on-chip A/D conversion, automotive body electronics (sub-systems), HVAC thermostat control, and low-cost industrial monitoring. The combination of integrated A/D, PWM, and 22 I/O pins allows a single PIC16C72AT-04E/SS to replace multiple discrete components. When designing with this device, allocate adequate decoupling (typically 0.1 uF ceramic per VDD pin) and ensure MCLR pin handling follows Microchip application notes for in-circuit serial programming compatibility. Brown-out reset configuration must be matched to the application's minimum operating voltage to avoid unintended resets during supply droop. This page synthesizes the Microchip datasheet, current distributor pricing across DigiKey and Octopart, and drop-in same-package alternatives from the PIC16C72 family tree, providing context not found in the datasheet alone.

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PIC16C72AT-04I/SO - 8-Bit 4MHz OTP MCU 3.5KB | Microchip
PIC16C72AT-04I/SO

PIC16C72AT-04I/SO - 8-Bit 4MHz OTP MCU 3.5KB | Microchip

The Microchip PIC16C72AT-04I/SO is an 8-bit CMOS OTP-based microcontroller in the PIC16C family, featuring a 4 MHz maximum clock input, 3.5 KB (2K x 14) of one-time-programmable (OTP) program memory, 128 bytes of RAM, 22 digital I/O lines, and a 5-channel 8-bit analog-to-digital converter (ADC). It is housed in a 28-pin SOIC wide-body package and operates from a single 4.0 V to 5.5 V supply. The part carries the "I" industrial temperature grade (-40 °C to +85 °C) and the "04" speed suffix denoting the 4 MHz oscillator grade. The trailing "T" indicates Tape and Reel packaging. An 8-bit OTP microcontroller (one-time-programmable microcontroller) is a single-chip computer that integrates a CPU, RAM, non-volatile program memory (here OTP EPROM), and peripherals on one die. OTP sits in the memory hierarchy below Flash and below mask-ROM: each cell can be programmed once by the user using a standard EPROM programmer, but cannot be electrically erased, making OTP parts cheaper than Flash for low-volume and mature products while still allowing code customization. Within the broader microcontroller taxonomy, the PIC16C72A belongs to Microchip's mid-range 8-bit PIC architecture (8-bit MCU -> mid-range MCU -> PIC16 family -> peripheral-rich PIC16C7x sub-family). Key features include 35 single-word instructions, all executing in one instruction cycle except program branches which take two cycles, giving an instruction execution time of 200 ns at 20 MHz clock input (the part is rated for 4 MHz at this speed grade but the silicon supports up to 20 MHz on the -20 grade). Peripherals include two 8-bit timers and one 16-bit timer/counter with capture/compare/PWM (CCP) module, a synchronous serial port (SSP) supporting SPI and I²C, and a USART for asynchronous serial communication. The 22 I/O pins are bidirectional with individually programmable direction. Typical applications include industrial control, appliance control, low-end sensor interfacing, and legacy embedded systems where the OTP memory cost advantage outweighs in-field reprogramming requirements. The 5-channel 8-bit ADC makes it suitable for simple analog monitoring tasks. When designing with this part, verify the OTP memory constraint: code cannot be updated in the field. For prototypes or field-updatable designs, choose the Flash-based PIC16F72 equivalent. Programming requires a Microchip MPLAB-compatible device programmer supporting PIC16C OTP devices. This page synthesizes distributor pricing, drop-in alternatives from the PIC16C7x family, and practical design notes not found in the standalone datasheet.

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PIC16C72AT-20E/SO - 8-Bit 20MHz CMOS MCU | Microchip
PIC16C72AT-20E/SO

PIC16C72AT-20E/SO - 8-Bit 20MHz CMOS MCU | Microchip

The Microchip Technology PIC16C72AT-20E/SO is an 8-bit CMOS microcontroller in the PIC16C mid-range family, featuring a 20 MHz core, 3.5 KB (2K x 14) of One-Time Programmable (OTP) program memory, and 128 bytes of RAM, packaged in a 28-pin SOIC. It operates from 4.0 V to 5.5 V supply and integrates a 5-channel 8-bit ADC, USART, and two CCP modules. An 8-bit microcontroller is a single-chip computer built around an 8-bit data path that fetches, decodes, and executes instructions one byte at a time. PIC microcontrollers use a Harvard RISC architecture in which program and data memory live on separate buses, allowing instruction fetch and operand read to occur in the same cycle. The PIC16C mid-range family is positioned as a low-cost OTP/UVEPROM platform for embedded control, sitting above the baseline PIC16C5X in peripheral richness while remaining compatible with the PICmicro mid-range instruction set documented in DS33023. Key specifications include a 20 MHz clock input delivering 200 ns instruction cycle, 22 I/O pins, hardware USART, two Capture/Compare/PWM modules, an 8-bit A/D converter with five input channels, and a watchdog timer. Power-managed SLEEP mode draws typical standby current well below full-run levels, and the device includes an in-circuit serial programming interface plus the standard mid-range interrupt controller. The PIC16C72AT is implemented in Microchip's CMOS process with on-chip EPROM (erasable via windowed package) or OTP variants; the 'A' suffix denotes the enhanced revision of PIC16C72 with improved ADC and timer modules. The architecture provides 35 single-word instructions with single-cycle execution except for program branches, which take two cycles. Typical applications include appliance control, industrial instrumentation, low-end motor control, sensor interface modules, and general-purpose embedded control where a 5 V supply rail is available and code can be committed to OTP memory. It is also widely used as a migration path or as a budget drop-in for designs originally prototyped on windowed CERDIP parts. When designing with this device, verify that the OTP program memory size, 5-channel ADC count, and USART availability match your firmware requirements. Note that 'C' devices are OTP/UVEPROM rather than Flash; new designs targeting in-field reprogramming should consider PIC16F72 or PIC16F882 from the same pin-compatible footprint family. This page synthesizes distributor stock levels, drop-in PIC16C72 family alternatives, and practical design notes drawn from Microchip datasheet DS30262 and the PICmicro Mid-Range Reference Manual (DS33023) - context not aggregated on any single vendor page.

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PIC16C72AT-20E/SS - 20MHz 8-bit OTP MCU, 28-SSOP | Microchip
PIC16C72AT-20E/SS

PIC16C72AT-20E/SS - 20MHz 8-bit OTP MCU, 28-SSOP | Microchip

The Microchip Technology PIC16C72AT-20E/SS is an 8-bit PIC16C-series microcontroller featuring 3.5 KB (2K x 14) of One-Time Programmable (OTP) program memory, 128 bytes of RAM, and 22 general-purpose I/O pins, all housed in a 28-pin SSOP surface-mount package. It operates at a maximum clock speed of 20 MHz (200 ns instruction cycle) from a 4.0 V to 5.5 V supply, and integrates a 5-channel 8-bit analog-to-digital converter (ADC) along with capture/compare/PWM and a USART module. An 8-bit PIC microcontroller (MCU) is a Harvard-architecture CMOS device that executes a compact, mostly single-cycle instruction set optimized for embedded control. Within Microchip's product tree, the PIC16C72A sits in the PIC16 mid-range family, which itself belongs to the broader 8-bit PIC microcontroller category and ultimately to the microcontroller branch of integrated circuits. OTP program memory allows one-time factory or field programming via a device programmer, making the part well-suited to production runs where flash reprogrammability is not required. Key features include 35 single-word instructions, all single-cycle except for program branches (2 cycles), four interrupt sources, an internal oscillator option, and a watchdog timer with its own on-chip RC oscillator. The 22 I/O pins each sink up to 25 mA and source up to 20 mA, allowing direct drive of LEDs and small relays without external drivers. The high-performance RISC CPU executes most instructions in 200 ns at 20 MHz, deterministic timing that simplifies real-time control loops. Typical applications include industrial automation and process control, appliance control boards, automotive body electronics (non-safety subsystems), sensor signal conditioning front-ends, and small consumer products. The wide operating temperature range (-40°C to +125°C for the 'E' industrial grade) and proven OTP silicon make it a reliable choice for mature designs. When designing with this device, ensure the MCLR reset circuit follows Microchip application note recommendations, and place a 0.1 µF decoupling capacitor within 6 mm of each VDD pin to suppress switching noise on the analog reference. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical engineering notes not found in the manufacturer datasheet - giving procurement and design engineers a one-stop engineering reference.

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PIC16C72AT-20I/SO - 8-Bit 20MHz OTP MCU w/ ADC | Microchip
PIC16C72AT-20I/SO

PIC16C72AT-20I/SO - 8-Bit 20MHz OTP MCU w/ ADC | Microchip

The Microchip Technology PIC16C72AT-20I/SO is an 8-bit RISC CMOS OTP-based microcontroller in the PIC16C family, offering 3.5KB (2K x 14) of program memory and 128 bytes of RAM, packaged in a 28-pin SOIC with industrial temperature rating. It executes a 35-instruction RISC instruction set at up to 20MHz, yielding a 200ns single-cycle instruction time and only 2-cycle program branches, balancing deterministic throughput with low power draw. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, data RAM, and peripherals such as timers, ADC, and I/O ports. The PIC16C family sits within Microchip's 8-bit mid-range hierarchy: PIC16C sub-family -> PIC16 mid-range -> 8-bit PIC microcontrollers -> microcontrollers (MCU) -> embedded processors -> semiconductors. OTP (One-Time Programmable) versions such as the PIC16C72A use windowless EPROM and are intended for cost-sensitive, code-frozen designs in production. Key features include five 8-bit A/D converter channels, two additional 8-bit timers/counters (TMR0, TMR1, TMR2), a Capture/Compare/PWM (CCP) module, 22 digital I/O pins, and a synchronous serial port (SSP) supporting SPI and I2C. The device operates from 4.0V to 5.5V with a maximum 20MHz external clock input. Brown-out reset, power-on reset, watchdog timer with on-chip RC oscillator, and an industrial -40C to +85C operating range add ruggedness for embedded deployments. The PIC16C72A uses a Harvard RISC architecture with separate program and data buses, enabling most instructions to execute in a single instruction cycle. The 8-bit data path, 14-bit instruction word, and 8-level hardware stack keep interrupt latency predictable. With 22 I/O capable of sourcing/sinking 25mA per pin and direct LED drive support, it can serve both as a logic controller and a driver front-end in the same BOM. Typical applications include industrial control, sensor signal conditioning, motor control loops, automotive body electronics, and consumer appliance controllers. The integrated ADC and CCP module make it well suited to closed-loop systems that read analog sensors and drive PWM outputs from the same chip. When designing with this part, choose a low-ESR 0.1uF decoupling capacitor on VDD and a 10uF bulk capacitor within 25mm of the supply pin. Place the crystal/oscillator traces short and guard them with a ground ring to keep EMI low. For code-security-sensitive products, prefer a windowed or flash sibling rather than this OTP variant because once programmed it cannot be re-read or changed.

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PIC16C72T-04/SO - 8-Bit 4MHz OTP MCU, 3.5KB Flash, 28-SOIC | Microchip
PIC16C72T-04/SO

PIC16C72T-04/SO - 8-Bit 4MHz OTP MCU, 3.5KB Flash, 28-SOIC | Microchip

The Microchip Technology PIC16C72T-04/SO is an 8-bit RISC microcontroller from the PIC16C7X mid-range family, operating at 4 MHz with 3.5KB (2K x 14) of One-Time Programmable (OTP) program memory, 128 bytes of RAM, and 22 digital I/O pins, housed in a 28-pin SOIC package. The 'T-04' suffix indicates the tape-and-reel shipping format with a 4 MHz maximum clock, while '/SO' designates the 28-lead Small-Outline IC package suitable for surface-mount production. A PIC16C-series microcontroller is a classic Harvard-architecture RISC device built around a 14-bit instruction word and a separate data bus, providing deterministic single-cycle instruction execution for embedded control. The 'C' suffix indicates CMOS OTP technology - the part is mask-free and field-programmable using a device programmer, but memory cannot be erased electrically, so OTP is typically chosen for low-cost production runs after firmware has been finalized. The PIC16C7X family sits within Microchip's mid-range PIC® microcontroller line, between the baseline PIC10/12/16 and the high-performance PIC18/dsPIC families, and integrates analog peripherals such as an on-chip A/D converter for mixed-signal applications. Key features include 22 general-purpose I/O pins arranged across multiple ports, an on-chip 8-bit A/D converter with up to 5 analog input channels, two PWM output modules, a watchdog timer with on-chip RC oscillator, brown-out reset and power-on reset, plus serial connectivity via I2C and SPI. The 4 MHz oscillator speed yields a 250 ns instruction cycle, and the device operates from 2.5 V to 6.0 V across the commercial 0 °C to +70 °C temperature range. Architecturally, the PIC16C72T-04/SO uses a 14-bit instruction set with an 8-level hardware stack, supporting interrupts from both internal peripherals and external sources. The OTP program memory (2K x 14) is writable via Microchip's ICSP (In-Circuit Serial Programming) interface, allowing firmware to be loaded after PCB assembly when the device is socketed or has ICSP header access. This combination of integrated ADC, PWM, and serial peripherals makes the PIC16C7X a versatile mid-range controller for industrial and consumer products. Typical applications include motor-control front-ends where the PWM and ADC combine for sensor feedback, white-goods and appliance controls, security-system user-interface panels, low-cost sensor-conditioning boards, and general-purpose embedded control where deterministic RISC execution and OTP one-time programming are preferred over flash reprogrammability. When designing with this device, remember that OTP memory cannot be re-programmed in-circuit - any firmware change requires a new part. For prototyping or designs requiring firmware iteration, the flash-based PIC16F72 is typically recommended as a development substitute sharing the same pinout. This page synthesizes distributor availability, same-package drop-in alternatives, and practical design considerations beyond the manufacturer datasheet to help engineers source and apply the PIC16C72T-04/SO confidently.

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PIC16C72T-04/SS - 8-bit MCU, 3.5KB OTP, 22 I/O, SSOP-28 | Microchip
PIC16C72T-04/SS

PIC16C72T-04/SS - 8-bit MCU, 3.5KB OTP, 22 I/O, SSOP-28 | Microchip

The Microchip Technology PIC16C72T-04/SS is an 8-bit CMOS RISC microcontroller with 3.5 KB of one-time-programmable (OTP) program memory, 128 bytes of RAM, and 22 digital I/O pins, housed in a 28-pin SSOP (shrink small-outline package). It belongs to the PIC16C7x family and operates from a 4 V to 5.5 V supply with a 4 MHz oscillator input (the "-04" suffix denotes the 4 MHz speed grade). The "T" suffix in the part number indicates tape-and-reel packaging, while "/SS" specifies the SSOP-28 package. The PIC16C7x family is a high-performance 8-bit RISC microcontroller family based on the Microchip PIC architecture. RISC microcontrollers use a reduced instruction set of typically 35 single-word instructions, where most instructions execute in a single instruction cycle, providing deterministic latency in real-time systems. Within the broader taxonomy, the PIC16C72 sits in the hierarchy: 8-bit MCU -> microcontroller -> embedded microcontroller -> semiconductor. The "C" in PIC16Cxx denotes OTP/EPROM-based program memory (rather than flash, denoted "F"), making the C-series suited for production runs where firmware is finalized. The "72" variant adds a 5-channel 8-bit ADC and capture/compare/PWM modules, distinguishing it from the simpler PIC16C71. Key features include a Harvard-architecture CPU with separate program and data buses, a 14-bit instruction word, an 8-level hardware stack, 22 digital I/O pins multiplexed with peripheral functions, three timer modules (Timer0, Timer1, Timer2), a 5-channel 8-bit analog-to-digital converter (ADC), one capture/compare/PWM (CCP) module, a synchronous serial port (SSP) supporting SPI and I2C master/slave modes, and a watchdog timer with its own on-chip RC oscillator. The OTP program memory is one-time writable via the standard Microchip ICSP programming interface. Typical applications include industrial automation controllers, automotive body and chassis electronics, consumer appliance controls, and embedded systems in robotics. The combination of ADC, PWM, and serial peripherals makes it well suited for sensor interfacing and motor control. When designing with this device, ensure the brown-out reset and watchdog timer are properly configured in firmware to avoid lockups. The OTP memory cannot be erased, so code must be fully validated before programming; use the PIC16C72 JW windowed CERDIP variant for development with UV-erasable EPROM. This page synthesizes distributor pricing, drop-in SSOP-28 alternatives from the same Microchip PIC16C family, and practical design notes not found in the manufacturer datasheet alone.

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PIC16C72T-04E/SO - 8-Bit 4MHz OTP MCU, 3.5KB, 28-SOIC | Microchip
PIC16C72T-04E/SO

PIC16C72T-04E/SO - 8-Bit 4MHz OTP MCU, 3.5KB, 28-SOIC | Microchip

The Microchip Technology PIC16C72T-04E/SO is an 8-bit CMOS RISC microcontroller from the PIC16C7X mid-range family, featuring a 4 MHz maximum clock input, 3.5 KB (2K x 14) of One-Time Programmable (OTP) program memory, and 128 bytes of RAM, all housed in a 28-pin SOIC package with a -40C to +125C operating range. This automotive-grade part is supplied in tape-and-reel packaging and targets embedded control applications that require integrated A/D conversion in a small SOIC footprint. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, working RAM, and peripheral interfaces on a single die. The PIC16C7X family uses Microchip's enhanced mid-range RISC core that executes 35 single-word instructions, with all instructions completing in one instruction cycle except for program branches which take two cycles, giving deterministic timing for embedded control loops. Key features of the PIC16C72T-04E/SO include 22 I/O pins, an integrated multi-channel 8-bit A/D converter, a 20 MHz maximum clock input (this -04 variant specifies 4 MHz operation), and 128 bytes of data RAM. The 04E suffix indicates the 4 MHz speed grade with the extended (-40C to +125C) temperature range, while the SO suffix designates the 28-pin Small Outline IC package, and the T suffix indicates tape-and-reel packaging. The PIC16C72T-04E/SO uses a Harvard architecture with separate program and data buses, allowing instruction fetch and operand access in the same cycle. The OTP program memory supports one-time field programming via standard device programmers, making the device suitable for low-to-medium volume production where mask-ROM economics are not justified. The integrated 8-bit A/D converter with multiple input channels removes the need for an external ADC in many sensor-interface designs. Typical applications include industrial automation and process control, automotive body and chassis electronics, sensor signal conditioning, simple closed-loop control systems, and battery-powered instrumentation that benefits from the OTP memory model. The -40C to +125C extended temperature range and automotive-grade qualification make this part suitable for under-hood and other harsh-environment deployments. When designing with this MCU, verify that the 4 MHz oscillator specification matches your timing budget - if the application requires more computational headroom, the -10 or -20 speed grades (10 MHz and 20 MHz respectively) are drop-in compatible within the same 28-SOIC footprint, allowing a simple oscillator change without PCB rework. This page synthesizes distributor pricing, automotive-grade temperature range notes, drop-in alternatives within the PIC16C72 family, and practical design notes not found in the manufacturer datasheet alone.

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PIC16C72T-04E/SS - 4MHz 8-Bit CMOS MCU 3.5KB OTP 28-SSOP | Microchip
PIC16C72T-04E/SS

PIC16C72T-04E/SS - 4MHz 8-Bit CMOS MCU 3.5KB OTP 28-SSOP | Microchip

The Microchip Technology PIC16C72T-04E/SS is a high-performance, 8-bit, fully-static CMOS microcontroller with an integrated 5-channel 8-bit Analog-to-Digital Converter, 3.5KB (2K x 14) of One-Time-Programmable (OTP) program memory and 128 bytes of RAM, housed in a 28-pin SSOP package. It operates at a maximum clock speed of 4 MHz (200 ns instruction cycle) from a 4.0V to 5.5V supply, delivering 4 MHz Flash PIC16CXX mid-range performance with only 35 single-word instructions. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (ROM/RAM), and programmable I/O peripherals. The PIC16C7X family is Microchip's mid-range 8-bit MCU family: PIC16C72 -> PIC16C7X mid-range -> PIC16CXX family -> 8-bit PIC microcontrollers -> embedded microcontrollers -> semiconductor IC. The '72 specifically adds a multi-channel ADC to the PIC16C7X base, enabling mixed-signal sensing without an external ADC chip. Key features include 22 I/O pins, 5 channels of 8-bit ADC, a capture/compare/PWM (CCP) module, a synchronous serial port (SSP) supporting SPI and I²C, a USART, two 8-bit timers and one 16-bit timer. With only 35 instructions (single-cycle except 2-cycle branches), code density is high and the learning curve is shallow - engineers familiar with the PIC16CXX instruction set can port code from the PIC16C71/710/711/712/715/716/717 family members directly. The device uses OTP program memory and is offered in tape-and-reel packaging with the /SS suffix indicating SSOP (0.209 inch, 5.30 mm width). This part is rated for the Automotive (-40°C to +125°C) temperature range, indicated by the 'E' designator in the part number suffix (PIC16C72T-04E/SS). For emulation/protoyping, a windowed CERDIP variant (PIC16C72-04E/JW) offers UV-erasable memory. Cross-family migration is supported by the 'A' revision (PIC16C72A) which doubles program memory to 7KB. Typical applications include industrial sensor monitoring, automotive body controllers, appliance controls, and low-power embedded control. Designers should leverage Microchip's MPLAB X IDE and MPLAB XC8 compiler chain for development, and verify ADC acquisition time settings against the source impedance of the analog sensor network.

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PIC16C72T-04I/SS - 4MHz 8-Bit MCU, 3.5KB OTP, 28-SSOP | Microchip
PIC16C72T-04I/SS

PIC16C72T-04I/SS - 4MHz 8-Bit MCU, 3.5KB OTP, 28-SSOP | Microchip

The Microchip Technology PIC16C72T-04I/SS is an 8-bit CMOS RISC microcontroller from the PIC16C mid-range family, operating at up to 4 MHz with 3.5 KB (2K x 14) of One-Time Programmable (OTP) program memory and 128 bytes of data RAM, housed in an industrial-temperature-grade 28-pin SSOP package. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and I/O peripherals. Microcontrollers belong to the broader integrated circuit (IC) hierarchy: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. The PIC16C72 family occupies Microchip's classic mid-range PIC architecture, which uses a 14-bit instruction word and a Harvard bus to keep program and data memories separate, enabling deterministic single-cycle instruction execution on most opcodes. Key features of the PIC16C72T-04I/SS include a 4 MHz maximum clock, 22 general-purpose digital I/O pins, a 5-channel 8-bit analog-to-digital converter (ADC), a USART module for asynchronous serial communication, an SSP module supporting SPI and I2C (master/slave), two 8-bit timers plus one 16-bit timer with capture/compare/PWM, a watchdog timer with its own on-chip RC oscillator, and an industrial operating temperature range of -40C to +85C. The on-chip ADC removes the need for an external converter in low-resolution sensor designs. The part uses Microchip's RISC core with only 35 single-word instructions, all single-cycle except program branches (which take two cycles). The OTP program memory makes it well suited for volume production where firmware is finalized, while the SSOP-28 footprint allows compact board placement with the T-suffix indicating tape-and-reel delivery for high-volume SMT assembly lines. Typical applications include industrial control subsystems, sensor-interface front ends, low-speed motor control, appliance control boards, simple protocol bridges, and battery-powered instrumentation where the 4 MHz clock, 8-bit ADC, and integrated I2C/SPI peripherals cover the entire design without external glue logic. Design tip: because this is an OTP device, firmware must be fully validated on a windowed or FLASH equivalent (such as PIC16F72) before committing to PIC16C72T-04I/SS in production. A 100 nF decoupling capacitor should be placed within 5 mm of VDD, and the MCLR pin must be tied to VDD through a 10 kohm resistor for normal operation. This page synthesizes distributor pricing, drop-in alternatives drawn from Microchip's PIC16C7x family, and practical design notes not found in the standalone datasheet PDF.

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PIC16C72T-10E/SS - 8-Bit 3.5KB EPROM MCU, 10MHz, 28-SSOP | Microchip
PIC16C72T-10E/SS

PIC16C72T-10E/SS - 8-Bit 3.5KB EPROM MCU, 10MHz, 28-SSOP | Microchip

The Microchip Technology PIC16C72T-10E/SS is an 8-bit RISC microcontroller from the PIC16C7X family featuring 3.5KB (2K x 14) of One-Time Programmable (OTP) EPROM program memory, 128 bytes of RAM, and an integrated 8-channel 8-bit Analog-to-Digital Converter. It operates up to 10MHz from a 4.0V to 5.5V single supply and is housed in a 28-pin Shrink Small-Outline Package (SSOP) supplied on tape and reel. The 'E' suffix indicates the extended industrial temperature grade (-40°C to +125°C). An 8-bit microcontroller (MCU) is a single-chip microcomputer that integrates a CPU, program memory, data RAM, peripherals (timers, ADC, communication ports), and I/O onto one silicon die. The PIC16C7X family belongs to the PIC mid-range architecture, itself a member of the broader 8-bit MCU category, which sits hierarchically beneath microcontrollers and embedded processors in the semiconductor taxonomy. Mid-range PIC cores combine deterministic single-cycle instruction execution with a small RISC instruction set of 35 single-word instructions, making them accessible to legacy embedded designs and easy to program in assembly or C. Key features of the PIC16C72T-10E/SS include 22 digital I/O lines, three timers (Timer0, Timer1, Timer2), a synchronous serial port (SSP) supporting SPI and I²C, a USART with 9-bit address masking, 8 channels of 8-bit ADC, and 256 bytes of EEPROM data memory on-chip. The 10MHz oscillator drives a 4-clock-per-instruction pipeline that delivers an effective 10 MIPS throughput. Brown-out reset, power-on reset, watchdog timer with its own on-chip RC oscillator, and an in-circuit debugger (ICD) interface round out the on-chip peripherals. Typical applications include industrial control loops, sensor conditioning and signal acquisition, motor drive gating, HVAC controllers, automotive body and interior subsystems, and small white-goods appliances. The integrated ADC eliminates external converter ICs in many low-channel-count analog front ends, while the USART enables communication with operator panels or host processors. Designers should note that the PIC16C72 is OTP-based, so firmware cannot be field-upgraded; for flash-based drop-in alternatives from the same family, consider PIC16F72. Programming requires a Microchip ICD or third-party programmer supporting mid-range PIC devices. This page synthesizes current distributor inventory, family-aware drop-in pin-compatible devices, and engineering design notes not collected on a single manufacturer datasheet page.

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PIC16C72T-10I/SS - 8-Bit 10MHz MCU, 3.5KB OTP, 28-SSOP | Microchip
PIC16C72T-10I/SS

PIC16C72T-10I/SS - 8-Bit 10MHz MCU, 3.5KB OTP, 28-SSOP | Microchip

The Microchip Technology PIC16C72T-10I/SS is an 8-bit PIC16C-series CMOS microcontroller with a 10 MHz core, 3.5 KB (2K x 14) of One-Time Programmable (OTP) program memory, 128 bytes of RAM, and a 28-pin SSOP industrial-temperature package. The device integrates a multi-channel 8-bit A/D converter, capture/compare/PWM (CCP) modules, USART, and 22 digital I/O pins, providing a complete mid-range microcontroller solution for embedded designs. Background: An 8-bit microcontroller (MCU) is a programmable single-chip computer built around an 8-bit data path. Within the semiconductor taxonomy, the PIC16C72 sits under mid-range MCU -> 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. The PIC16C7X family adds integrated analog-to-digital conversion, positioning these parts between pure digital 8-bit MCUs (e.g., PIC16C5X) and higher-pin-count PIC17/PIC18 devices. This A/D-integrated positioning made the PIC16C72 popular for sensor-interface and motor-control designs in the late 1990s. Key features include: a Harvard-architecture RISC CPU with 35 single-word instructions (most single-cycle, branches two cycles), 10 MHz operating speed, 4.0-5.5V single-supply operation, two 8-bit timers plus one 16-bit timer, a synchronous/asynchronous USART, an 8-bit A/D converter with up to 5 input channels, 22 I/O pins with high-current sink/source capability, and industrial-temperature (-40C to +85C) qualification. The OTP memory model supports one-time field programming via standard device programmers. Technically, the PIC16C72 uses a 14-bit instruction word and an 8-bit data path, with separate program and data buses (Harvard architecture). The internal oscillator block supports crystal/ceramic resonator or external clock modes, and the integrated brown-out reset (BOR) circuit plus watchdog timer (WDT) provide robust field operation. CIP (core independent peripherals) on the CCP and USART blocks reduce CPU overhead, allowing deterministic timing in motor-control and serial-communication loops. Typical applications include industrial control panels, appliance controllers (washing machines, HVAC, microwave ovens), sensor-signal acquisition boards, low-end motor control, and embedded serial-portable instrumentation. The integrated A/D and PWM make the part well-suited to closed-loop control systems requiring both analog feedback and PWM drive. When designing with this MCU, ensure the 10 MHz oscillator margin accounts for temperature and aging. Add a 0.1 uF decoupling capacitor adjacent to each VDD/VSS pin pair, and reserve the MCLR/VPP pin for in-system programming via ICSP. Note that the PIC16C72 has been superseded by flash-based PIC16F72 and PIC16F882 variants for new designs; the PIC16C72T-10I/SS remains available for legacy and long-lifecycle products. This page combines the manufacturer datasheet, distributor stock/pricing, drop-in OTP and flash-based alternatives, and engineering design notes that go beyond the datasheet to accelerate board bring-up.

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PIC16C72T-20/SO - 8-bit 20MHz OTP MCU 3.5KB | Microchip
PIC16C72T-20/SO

PIC16C72T-20/SO - 8-bit 20MHz OTP MCU 3.5KB | Microchip

The Microchip PIC16C72T-20/SO is an 8-bit CMOS RISC microcontroller in the PIC16C7X mid-range family, delivering 20 MHz CPU performance with 3.5 KB (2K x 14) One-Time Programmable (OTP) program memory and 128 bytes of RAM in a 28-pin SOIC package. According to the Microchip PIC16C72 family datasheet, the device integrates a 5-channel 8-bit analog-to-digital converter, two capture/compare/PWM modules, a synchronous serial port (SSP) supporting SPI and I2C, a USART, and 22 digital I/O lines - making it a true system-on-chip for embedded control. The PIC16C7X family belongs to the broader PIC mid-range architecture, a Harvard-style 8-bit RISC core that sits between baseline PIC10/12/16 devices and the high-end PIC18 family in Microchip's microcontroller taxonomy. With 35 single-word instructions, single-cycle execution on most opcodes, and a wide 4.0 V to 5.5 V supply range, the PIC16C72T-20/SO is engineered for cost-sensitive control applications where deterministic timing and low power are required. Key features include 20 MHz maximum clock for 200 ns instruction cycle, hardware multiply assist, 8-level deep hardware stack, programmable code protection, power-on reset, brown-out reset, watchdog timer with its own on-chip RC oscillator, and four oscillator options (XT, HS, RC, LP). The integrated 8-bit ADC supports up to 5 channels at conversion speeds suitable for slow process-variable monitoring, and the two CCP modules can independently drive PWM outputs or capture timing events on external signals. Typical applications span industrial sensor conditioning, motor speed control loops, HVAC damper and valve actuators, and consumer appliance front-panel controllers. The PIC16C72T-20/SO is supplied in tape-and-reel packaging for high-volume SMT assembly. When designing with this part, note that OTP memory requires one-pass programming - no firmware updates are possible once the bit cells are written. For field-reprogrammable designs, migrate to the pin-compatible flash-based PIC16F72-I/SO, which is recommended by Microchip as the modern functional replacement. The 28-pin SOIC footprint is also shared with PIC16C71X and PIC16C66 series, enabling easy board-level reuse. The 8-bit microcontroller category includes LDO regulators, ADC/DAC converters, and serial interface ICs as supporting analog functions in a typical embedded power tree; the PIC16C72T-20/SO is positioned as the digital brain for cost-sensitive control designs. This page synthesizes distributor pricing, drop-in same-package alternatives, and design guidance not found in the standalone manufacturer datasheet.

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PIC16C72T-20/SS - 20MHz 8-Bit PIC MCU, 3.5KB EPROM, 28-SSOP
PIC16C72T-20/SS

PIC16C72T-20/SS - 20MHz 8-Bit PIC MCU, 3.5KB EPROM, 28-SSOP

The Microchip Technology PIC16C72T-20/SS is a high-performance 8-bit CMOS RISC microcontroller with 3.5 KB EPROM program memory (2K x 14), 128 bytes of RAM, and 22 digital I/O pins, housed in a 28-pin SSOP surface-mount package supplied on tape and reel. The device integrates a 5-channel 8-bit A/D converter, one 8-bit and one 16-bit timer/counter, a synchronous serial port (SSP) supporting SPI and I2C, and a USART, delivering a complete peripheral mix in the PIC16CXX mid-range family. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, working RAM, and peripheral blocks (A/D converters, timers, communication controllers). MCUs are the foundational building blocks of embedded systems, found in everything from washing machines to industrial controllers. The PIC16C7X family specifically targets cost-sensitive applications requiring integrated analog: an 8-bit ADC, capture/compare/PWM, and serial connectivity, all in 28- and 40-pin packages. RISC architecture (Reduced Instruction Set Computer) means the CPU executes most instructions in a single clock cycle, achieving high throughput at moderate clock rates. Key features of the PIC16C72T-20/SS include 20 MHz maximum clock input (200 ns instruction cycle), 35 single-word instructions, an operating voltage of 2.5 V to 5.5 V, and an operating temperature range suitable for commercial (0 C to +70 C) use. The device supports in-circuit serial programming (ICSP) for field upgrades and uses OTP (one-time-programmable) EPROM technology for program memory, which is ideal for low- to mid-volume production. Architecturally, the PIC16C72 uses a Harvard-style memory map with separate program (14-bit wide) and data (8-bit wide) buses, a 2-level hardware stack, and 8 special-function registers mapped into the data memory. The integrated 8-bit ADC delivers a typical conversion time of 19.2 us at 20 MHz, and the USART supports asynchronous and synchronous serial communication at up to several hundred kbps. Typical applications include industrial control and monitoring (sensor interfacing, valve drivers), appliance control (consumer white goods with ADC inputs), automotive body electronics (when paired with the PIC16C72T-20I/SS industrial-temperature variant), instrumentation and data acquisition, and low-end motor control with PWM-driven H-bridges. The integrated A/D simplifies designs that would otherwise require an external ADC. When designing with this part, note that OTP memory cannot be erased, so the firmware must be fully validated before programming. For development, use the PIC16C72-20/SP (windowed ceramic DIP) or the PIC16F72 flash-based equivalent; the production programmer should use ICSP for fast factory programming. The 28-SSOP package has a modest thermal footprint suitable for commercial environments, but engineers should still follow standard decoupling guidelines (100 nF plus 10 uF near the supply pins). This page consolidates distributor pricing, drop-in SSOP-28 alternatives (including the flash-based PIC16F72 and the industrial-temperature PIC16C72T-20I/SS), and practical design notes that go beyond the manufacturer datasheet, so engineers can make a fast, informed selection.

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PIC16C72T-20E/SO - 8-Bit OTP MCU, 20MHz, 3.5KB | Microchip
PIC16C72T-20E/SO

PIC16C72T-20E/SO - 8-Bit OTP MCU, 20MHz, 3.5KB | Microchip

The Microchip Technology PIC16C72T-20E/SO is an 8-bit PIC mid-range microcontroller with 3.5 KB (2K x 14) of One-Time Programmable (OTP) program memory, 128 bytes of RAM, and a maximum clock speed of 20 MHz, housed in a 28-pin SOIC (7.50 mm width) tape-and-reel package with automotive temperature grade. An 8-bit OTP microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, RAM, and peripherals. The 'OTP' suffix means the program memory can be written only once - it is mask-ROM-equivalent in cost but flash-free for low-to-mid volume production. Mid-range PIC MCUs sit in Microchip's product hierarchy below enhanced mid-range (PIC16F1xxx) and above baseline (PIC10/14/16x) families. OTP PIC16C parts target cost-optimised, high-volume automotive and industrial designs where code is finalised before production. The device features five 8-bit ADC channels, one 8-bit PWM/CCP channel, hardware I2C and SPI peripherals, a 22-strong I/O pinout, brown-out reset, power-on reset (POR), and a watchdog timer. With 35 single-word instructions (most single-cycle, branches two-cycle) and 8 hardware stack levels, the PIC16C72 line is intended for fast control loops in cost-sensitive products where deterministic execution is valued over raw MIPS. Operating from 4.0 V to 5.5 V across the -40°C to +125°C automotive range, the part dissipates typical 5 mA active / <1 µA standby. Integrated analog and digital peripherals allow direct interfacing of sensors, EEPROMs, and H-bridges without external glue logic, while CMOS static design yields near-zero standby power for always-on applications. Typical applications include automotive body controllers (window lifters, mirror controllers), HVAC damper actuators, security-system keypads, and small industrial sensor nodes. Choose this part when BOM cost dominates and code is stable - migrate to PIC16F72 or PIC16F882 for in-circuit reprogrammability. For layout, place a 0.1 µF decoupling capacitor within 5 mm of VDD/SS, keep the MCLR trace short to the ICSP header, and reserve a 4-pin header for programming. This page consolidates distributor pricing, drop-in same-package alternatives, and engineering design notes that are not present in the manufacturer datasheet.

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PIC16C72T-20I/SS - 8-Bit 20MHz MCU, 3.5KB OTP, 28-SSOP | Microchip
PIC16C72T-20I/SS

PIC16C72T-20I/SS - 8-Bit 20MHz MCU, 3.5KB OTP, 28-SSOP | Microchip

The Microchip Technology PIC16C72T-20I/SS is an 8-bit CMOS RISC microcontroller from the PIC16C7X mid-range family, integrating a 5-channel 8-bit analog-to-digital converter, 3.5 KB of one-time-programmable (OTP) program memory, and 128 bytes of RAM in a 28-pin SSOP (0.209 inch / 5.30 mm body width) surface-mount package on tape and reel. It operates from a 4.0 V to 5.5 V supply at a 20 MHz maximum clock rate, executes 35 single-word instructions (all single-cycle except program branches which take two cycles), and exposes 22 digital I/O lines plus a 5-channel 8-bit ADC, two 8-bit timers and one 16-bit timer, a synchronous serial port (SSP) supporting SPI and I2C, and a USART. An 8-bit microcontroller (MCU) is a small self-contained computer-on-a-chip that integrates a CPU, program memory, working RAM, and programmable peripherals on a single silicon die. The PIC16C7X family belongs to the mid-range taxonomy: 8-bit RISC core -> PIC mid-range -> Microchip PIC16C legacy family -> embedded microcontroller -> semiconductor IC. Mid-range PIC MCUs balance code density (14-bit wide instruction word), deterministic interrupt response, and rich peripheral integration for cost-sensitive embedded designs. Key features include 35 single-word instructions, 8-level deep hardware stack, four interrupt sources, power-on reset, power-up timer, oscillator start-up timer, watchdog timer with its own on-chip RC oscillator, brown-out reset, and in-circuit serial programming (ICSP) capability. The wide operating temperature range of -40 C to +85 C (industrial grade, indicated by the -I suffix) supports harsh-environment deployment without external thermal management. The PIC16C72 architecture combines a Harvard-style program/data memory split, an instruction pipeline, and a peripheral set tailored for real-time control. The 5-channel 8-bit ADC with selectable reference voltages, combined with the capture/compare/PWM module, allows direct interface to analog sensors and motor or lighting actuators while the synchronous serial port handles peripheral expansion to EEPROMs, sensors, or display drivers. Typical applications include appliance control, automotive body and chassis subsystems, industrial process control, uninterruptible power supplies, battery chargers, and consumer products such as washing machines, microwave ovens, and remote-keyless-entry transmitters. The on-chip ADC and PWM simplify sensor-and-actuator designs, while ICSP and in-circuit debugging accelerate field firmware updates. When designing with the PIC16C72T-20I/SS, ensure the input supply stays within 4.0 V to 5.5 V, and use the configuration bits to select the oscillator mode, watchdog enable, brown-out voltage threshold, and code protection. Place a 0.1 uF decoupling capacitor close to VDD/VSS, and keep the MCLR pin pulled high through a 10 kohm resistor unless an external reset is used. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving procurement and engineering teams a one-stop reference for sourcing and qualifying the PIC16C72T-20I/SS.

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PIC16C73A-04/SP - 4MHz 8-bit OTP MCU 7KB | Microchip
PIC16C73A-04/SP

PIC16C73A-04/SP - 4MHz 8-bit OTP MCU 7KB | Microchip

The Microchip Technology PIC16C73A-04/SP is an 8-bit OTP-programmable CMOS microcontroller in the PIC16C7X mid-range family, supplied in a 28-pin SPDIP (SP) through-hole package with a 4 MHz maximum clock speed. It integrates 7 KB (4K x 14) of one-time-programmable program memory, 192 bytes of RAM, 22 digital I/O lines, and a multi-channel 8-bit A/D converter plus one 8-bit and two 8/16-bit timer/counter modules, all in a Harvard-architecture RISC core delivering 35 single-word instructions and 200 ns instruction cycle at 20 MHz (the -04 speed grade is the 4 MHz version). The device supports operating voltages from 4.0 V to 5.5 V with low-power consumption (15 µA typical at 5 V / 4 MHz, 1 µA standby at 3 V / 32 kHz), making it suited to commercial and industrial embedded designs. What is an OTP microcontroller? An OTP (One-Time-Programmable) microcontroller is a non-flash device whose program memory is written once by the user (or factory) using a dedicated programmer, after which the code is permanent. OTP parts are positioned in the hierarchy: microcontroller -> 8-bit MCU -> OTP MCU -> mid-range PIC. Compared to flash-based MCUs they are lower cost per unit, while sharing the same peripheral set and pinout, which is why many PIC16C7X designs migrate to the PIC16F7X family when field updates are required. The PIC16C73A-04/SP key features include the integrated 5-channel 8-bit A/D converter, a USART with programmable baud-rate generator, MSSP module that supports both SPI and I2C, two PWM/capture/compare modules, and a programmable watchdog timer with on-chip RC oscillator for maximum reliability. Source/ink current of 25 mA per pin drives LEDs and small solenoids directly, eliminating external drivers in many circuits. The mid-range core has an 8-level hardware stack and supports 14-bit wide instructions, with separate program and data buses (Harvard) for deterministic single-cycle execution. Architecturally the device uses a RISC Harvard core with 35 instructions, an 8-bit data path, and a 14-bit program-memory bus. The -04 speed grade limits the oscillator input to 4 MHz and is intended for cost-sensitive or power-budget designs where the full 20 MHz performance is not required. The integrated brown-out reset and power-on reset circuitry reduce external component count, and the device supports In-Circuit Debugging (ICD) via two RB6/RB7 pins. Typical applications include industrial control, motor control (low-end DC brushed and small stepper), metering, IoT end-node sensor interfaces, low-power battery-backed instrumentation, and embedded automation. The PIC16C73A-04/SP is also widely used in legacy designs and educational platforms where OTP programming and 4 MHz operation are acceptable. When designing with this device, plan for OTP programming: code must be fully verified before the part is committed. Use Microchip's PICkit or MPLAB ICD tools for development on equivalent flash parts such as the PIC16F73 (pin-compatible drop-in replacement) and finalize firmware on the PIC16C73A for production. Ensure the supply rail stays inside 4.0 V to 5.5 V and provide adequate decoupling (0.1 µF + 10 µF) at VDD. This page synthesizes Microchip datasheet parameters, distributor stock data, drop-in same-family alternatives (PIC16C73B, PIC16F73), and design notes that are not collated in any single manufacturer document.

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PIC16C73A-04E/SP - 8-bit OTP MCU, 4MHz, 28-SPDIP | Microchip
PIC16C73A-04E/SP

PIC16C73A-04E/SP - 8-bit OTP MCU, 4MHz, 28-SPDIP | Microchip

The Microchip Technology PIC16C73A-04E/SP is an 8-bit CMOS one-time-programmable (OTP) microcontroller from the PIC16C7X family, operating up to 4 MHz in the 28-pin SPDIP package. According to the manufacturer datasheet, it integrates 7 KB of program memory (4K x 14 words), 192 bytes of RAM, 22 digital I/O lines, and a multi-channel 8-bit analog-to-digital (A/D) converter. The 'E' suffix denotes the Extended temperature range (-40C to +125C), and the 'SP' suffix specifies the 28-pin SPDIP (Skinny Plastic DIP) through-hole package. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (ROM/OTP/Flash), data RAM, and peripherals such as timers, communication ports, and analog inputs. The PIC16C7X family belongs to Microchip's PIC16 mid-range architecture (Harvard RISC, 14-bit instruction word), positioned in the product hierarchy as: PIC10/12/16 baseline -> PIC16 mid-range -> PIC18 enhanced mid-range -> PIC32 32-bit MCU. These MCUs are favored for deterministic real-time control, low quiescent current, and easy in-circuit serial programming. Key features include a wide operating voltage range of 2.5 V to 6.0 V, 25 mA source/sink current per I/O, and ultra-low-power modes with 1 uA typical standby current at 3 V/32 kHz. The integrated A/D converter offers 8-bit resolution across up to 5 analog input channels, making the part suitable for mixed-signal embedded designs. Two 8-bit timer/counters plus one 16-bit timer/counter provide flexible event capture and PWM generation. The PIC16C73A-04E/SP uses a Harvard architecture with separate code and data buses, 14-bit-wide instructions, and a 200 ns instruction cycle at 4 MHz (4 MHz oscillator with a 4:1 internal divider). The CMOS process delivers low power with 15 uA active current at 5 V/4 MHz, enabling battery-backed designs. The OTP program memory is programmed once via Microchip's ICSP (In-Circuit Serial Programming) interface. Typical applications include appliance control panels, automotive body electronics (Extended temp grade), sensor signal conditioning with on-chip A/D, low-cost motor control via PWM, and remote sensor nodes. Its 5-channel 8-bit A/D and 22 I/Os handle small mixed-signal nodes without external ADC ICs. When designing, verify the OTP memory cannot be re-programmed; for prototype or field-upgradable designs, choose the flash-based PIC16F73 or PIC16C73B successor recommended by Microchip. Always include a 0.1 uF decoupling capacitor between VDD and VSS placed within 5 mm of the pins. This page synthesizes verified distributor pricing, same-family drop-in alternatives, and design notes not found on the manufacturer datasheet cover page. XAIPART recommends the PIC16C73A-04E/SP for new designs only when OTP memory is acceptable; otherwise, select the flash-based PIC16F73 successor.

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PIC16C73A-04I/SO - 8-bit OTP MCU, 4MHz, 7KB, 28-SOIC | Microchip
PIC16C73A-04I/SO

PIC16C73A-04I/SO - 8-bit OTP MCU, 4MHz, 7KB, 28-SOIC | Microchip

The Microchip Technology PIC16C73A-04I/SO is an 8-bit CMOS OTP-based microcontroller in the PIC16CXX mid-range family, offering 7KB (4K x 14) of program memory, 192 bytes of RAM, and 22 digital I/O lines, all packaged in a 28-pin SOIC (SO) wide-body outline. It operates from a 4V to 6.0V supply, runs at 4 MHz oscillator speed (the "-04" speed grade), supports the standard PIC mid-range instruction set (35 single-word instructions, all single-cycle except branches), and integrates a multi-channel 8-bit A/D converter plus a USART, SSP/SPI/I2C, and two 8-bit timers plus one 16-bit timer with CCP. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory (here OTP EPROM), volatile data memory (RAM), peripherals, and I/O on one die. The PIC16C7X mid-range family was designed as low-cost, high-performance, fully-static CMOS MCUs for embedded control, and the PIC16C73A-04I/SO sits between the smaller PIC16C72 (28-pin) and the larger PIC16C74A/76/77 (40-pin) variants, sharing the same peripheral set so code can scale across packages. Key features of the PIC16C73A-04I/SO include 7KB of one-time-programmable (OTP) EPROM, 192 bytes of data RAM, 22 general-purpose I/O pins with 25 mA source/sink capability, an 8-channel 8-bit A/D converter, a USART for asynchronous/synchronous serial, an SSP module supporting SPI and I2C, and a 25 mA sink/source current suitable for driving LEDs and small relays directly. It also supports industrial temperature range (-40C to +85C) and a low-power standby current of approximately 1 uA typical at 3V/32 kHz. The PIC16C73A-04I/SO is built on a fully-static CMOS process, which means the clock can be stopped and the device held in its current state without losing register contents - useful for power-saving designs. The 4 MHz "-04" speed grade delivers 4 million instructions per second (Fosc/4) with a 1 us instruction cycle, and the wide operating voltage range (2.5V to 6.0V for the broader family, 4V to 5.5V for this industrial-temperature grade) makes it suitable for 5V industrial buses. Typical applications include industrial control panels, sensor interface boards, motor-control front-ends (with the CCP module for PWM), low-cost consumer appliances, and embedded instrumentation. The integrated 8-bit ADC simplifies analog front-ends, while the USART enables RS-232/RS-485 communication without an external transceiver IC for short-distance links. When designing with this part, note that OTP (one-time-programmable) memory cannot be erased or rewritten - use the PIC16F73 (Flash) or PIC16C73B (improved revision) for development or any application requiring firmware updates in the field. The "I" suffix denotes the industrial temperature range (-40C to +85C); the "SO" suffix indicates 28-pin SOIC packaging. This page synthesizes distributor stock and pricing, same-package drop-in alternatives including newer revision and Flash-based variants, and practical design notes not collected in any single source.

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