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PIC16C77-20/P - 8-bit 20MHz OTP MCU 14KB | Microchip
PIC16C77-20/P

PIC16C77-20/P - 8-bit 20MHz OTP MCU 14KB | Microchip

The Microchip PIC16C77-20/P is an 8-bit CMOS OTP-based microcontroller in the PIC16CXX mid-range family, delivering 20 MHz (200 ns instruction cycle) performance with 14 KB (8K x 14) of one-time-programmable program memory and 368 bytes of RAM in a 40-pin PDIP through-hole package. It integrates an 8-channel 8-bit A/D converter, three timers, a synchronous serial port (SSP), USART, and 33 digital I/O lines, addressing industrial control, embedded automation, and motor-drive designs where legacy code compatibility and proven PIC mid-range architecture matter more than flash reprogrammability. Per the Microchip datasheet published 1997-03-05, the part operates from 4.0 V to 5.5 V (commercial and industrial grades available) and is recommended for new designs to migrate to the pin-compatible PIC16F77 flash variant, which Microchip actively promotes as the modern replacement. Key features include 8 channels of 8-bit A/D, 33 I/O pins with 25 mA source/sink capability, 35 single-word instructions, a wide operating voltage range up to 6.0 V, and low power consumption of 15 µA typical at 5 V/4 MHz plus 1 µA standby at 3 V/32 kHz. The PIC16C77 belongs to the PIC16C7X family, which is fully static and offers DC to 20 MHz clock input. The architecture integrates analog-to-digital conversion directly on-chip, eliminating external ADC cost. Typical applications include industrial control, IoT edge devices, embedded automation, motor control, metering instruments, and low-power board designs where the through-hole PDIP package simplifies prototyping and field-serviceable assemblies. The OTP program memory means code is locked at production time, requiring mask-style inventory planning. Designers should add 100 nF decoupling on VDD and reserve an MCLR pull-up, follow Microchip's in-circuit serial programming (ICSP) layout, and respect the 25 mA per-pin sink/source budget when driving relays or LEDs directly from I/O lines.

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PIC16C77-20/PQ - 8-bit 20MHz 14KB OTP MCU, 44-MQFP | Microchip
PIC16C77-20/PQ

PIC16C77-20/PQ - 8-bit 20MHz 14KB OTP MCU, 44-MQFP | Microchip

The Microchip Technology PIC16C77-20/PQ is an 8-bit CMOS OTP-based microcontroller in the PIC16CXX mid-range family, operating at 20MHz with 14KB (8K x 14) of program memory and 368 bytes of RAM, packaged in a 44-pin MQFP (10x10mm). It executes one instruction per 200ns cycle using a RISC architecture with only 35 single-word instructions, and provides 33 digital I/O pins with an integrated 8-channel 8-bit A/D converter. What is a microcontroller (MCU)? An 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-to-digital converters. The PIC16C7X family is classified within the PIC mid-range hierarchy, sitting between baseline PIC10/12/16 devices and enhanced mid-range PIC16F1xxx devices. It is widely used in industrial control, instrumentation, and embedded systems where deterministic 8-bit processing and OTP (one-time-programmable) memory are required for cost-sensitive or end-of-life-locked firmware. Key features include three timer/counters (Timer0, Timer1, Timer2), two Capture/Compare/PWM (CCP) modules for motor or power control, two serial ports (USART/SCI and SSP/SPI/I2C), 8 channels of 8-bit A/D conversion, and a 14-bit instruction word optimized for compact code density. The 44-pin MQFP package provides ample I/O for parallel bus interfaces, keypad scans, and LCD drive applications. The PIC16C77 is built on a fully-static CMOS process that supports DC to 20MHz operation across the commercial and industrial temperature ranges. Its RISC core, 8-level deep hardware stack, and Harvard bus architecture deliver deterministic interrupt response suitable for real-time control loops. The integrated 8-bit ADC with multiple input channels makes it well-suited for sensor multiplexing in process control and instrumentation. Typical applications include industrial process controllers, sensor signal conditioning front-ends, motor control boards, instrumentation front panels, and embedded systems requiring OTP-based firmware. Microchip notes that newer designs should consider the flash-based PIC16F77 for in-system reprogrammability, while the PIC16C77-20/PQ remains in active legacy production for long-life-cycle programs. When designing with this MCU, ensure a stable 20MHz clock source and verify that the brown-out reset and watchdog timer are configured to your application's reliability requirements. OTP memory cannot be re-programmed, so firmware validation on a flash-equivalent (PIC16F77) prior to OTP commitment is a strongly recommended workflow. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that complement - but do not replace - the manufacturer datasheet, helping engineers evaluate lifecycle and replacement options.

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PIC16C77-20/PT - 8-bit MCU, 14KB OTP, 20MHz, 44-TQFP | Microchip
PIC16C77-20/PT

PIC16C77-20/PT - 8-bit MCU, 14KB OTP, 20MHz, 44-TQFP | Microchip

The Microchip Technology PIC16C77-20/PT is an 8-bit CMOS OTP-based microcontroller in the PIC16C family, offering 14KB (8K x 14) of one-time-programmable program memory and 368 bytes of RAM, packaged in a 44-pin TQFP (10x10 mm). It executes instructions in a 200 ns cycle at a 20 MHz clock, drawing only a few mA of active supply current from a 4 V to 6 V rail, and exposes 33 digital I/O pins alongside 8 channels of 8-bit A/D conversion. What is an OTP microcontroller? An OTP (one-time-programmable) microcontroller is a class of MCU whose program memory can be written exactly once after manufacture and is thereafter read-only, providing lower per-unit cost than flash-based parts while eliminating in-system reprogrammability. OTP MCUs sit beneath the broader category hierarchy of microcontroller -> embedded controller -> semiconductor device, and the PIC16C77 belongs to Microchip's mid-range PIC® architecture, which is code-compatible with the PIC16C5X and PIC12CXXX families. Key features include 2 capture/compare/PWM modules, a synchronous serial port configurable as 3-wire SPI™ or 2-wire I²C™, and a USART for asynchronous serial communication. Two additional timers (Timer0, Timer1, Timer2) provide flexible event timing, and 8 channels of 8-bit A/D conversion support sensor and analog-signal acquisition. The PIC16C77 is upwards source-compatible with PIC16C5X and PIC12CXXX devices, simplifying migration for legacy designs. Architecturally, the device uses a Harvard-class RISC core with 35 single-word instructions, a hardware multiplier-free ALU optimized for bit-manipulation and BCD arithmetic, and separate program and data buses. The OTP program memory is fabricated using standard CMOS EPROM cells, which trade reprogrammability for die-area efficiency and lower cost in mature production volumes. Typical applications include industrial control panels, automotive body electronics, sensor-interface boards, and legacy embedded systems where deterministic 8-bit control and ample I/O are required. The wide operating-temperature variants and USART peripheral also suit point-of-sale terminals, instrumentation front-ends, and simple motor-control boards. When designing with this device, ensure the OTP programming step is planned into manufacturing flow because post-deployment firmware updates are not possible. The 4 V to 6 V supply range must be respected, and decoupling capacitors should be placed within 5 mm of VDD/VSS pins per Microchip's mid-range reference design. This page consolidates distributor pricing, drop-in compatible alternatives (including the recommended flash-based successor PIC16F77), and practical design notes not found in the standalone manufacturer datasheet.

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PIC16C77-20E/L - 8-Bit CMOS MCU, 14KB EPROM, 20MHz, 44-PLCC | Microchip
PIC16C77-20E/L

PIC16C77-20E/L - 8-Bit CMOS MCU, 14KB EPROM, 20MHz, 44-PLCC | Microchip

The Microchip Technology PIC16C77-20E/L is an 8-bit CMOS RISC microcontroller in a 44-pin PLCC package, featuring 14 KB of one-time-programmable EPROM program memory, 368 bytes of RAM, and a maximum clock speed of 20 MHz. It is part of Microchip's PIC16C7x mid-range family and includes an integrated 8-channel, 8-bit Analog-to-Digital converter, two additional timers, two Capture/Compare/PWM peripherals, and a synchronous serial port configurable as either 3-wire SPI or 2-wire I2C, plus a USART for asynchronous serial communication. What is an 8-bit CMOS microcontroller? It is a single-chip computer that integrates a CPU, program memory (ROM/EPROM/Flash), data memory (RAM), and peripherals on one die. The PIC16C7x family belongs to the mid-range PIC microcontroller hierarchy, sitting between base-line PIC10/12 devices and enhanced PIC17/18 devices. The PIC16C77 is the higher-pin-count, higher-memory sibling of the PIC16C73/74/76 series, offering more I/O lines and more program memory for embedded control. Key features include 33 digital I/O lines, a wide operating voltage range of 2.5 V to 6.0 V, high sink/source current capability of 25 mA/25 mA per pin, low standby current of 1 µA typical at 3 V / 32 kHz, and 35 single-word instructions to learn. The device uses a Harvard RISC architecture with single-cycle instruction execution except for program branches, which take two cycles, giving predictable deterministic timing that is highly valued in real-time control applications. The PIC16C77 architecture combines a precision 8-bit ALU, a 14-bit instruction word, hardware stack, and dedicated peripheral registers. The integrated A/D converter with 8 channels simplifies mixed-signal designs by eliminating an external ADC chip. Two PWM modules support motor and power-control loops directly. The 'E' suffix denotes the extended industrial temperature range (-40 °C to +125 °C), while the 'L' suffix indicates the windowed CERDIP-44 package variant (per the manufacturer part-number decoder), though the verified data confirms the 44-pin PLCC form factor in production. Typical applications include industrial process control, motor control, instrumentation, automotive body electronics, and consumer appliances. The device's rich peripheral set and 14 KB EPROM program memory make it suitable for moderate-complexity firmware with mixed-signal and serial-communication needs. When designing with this part, note that EPROM devices require a UV-erase window for reprogramming; for in-system reprogrammability, choose the Flash-based PIC16F877 equivalent. Always place 0.1 µF decoupling capacitors on VDD/VDD2 and provide a stable MCLR reset network with a 10 kΩ pull-up. This page synthesizes distributor pricing, pin-compatible PIC16C7x drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC16C77-20E/PQ - 8-bit OTP MCU, 14KB, 20MHz, 44-MQFP | Microchip
PIC16C77-20E/PQ

PIC16C77-20E/PQ - 8-bit OTP MCU, 14KB, 20MHz, 44-MQFP | Microchip

The Microchip Technology PIC16C77-20E/PQ is an 8-bit CMOS OTP microcontroller with 14KB program memory, 368 bytes RAM, and a 20 MHz maximum clock, housed in a 44-pin Metric Quad Flat Pack (MQFP/PQ) package. It integrates a multi-channel 8-bit A/D converter, two 8-bit timers, one 16-bit timer with capture/compare/PWM, a synchronous serial port (SSP) for SPI/I2C, and a USART, providing a complete set of peripherals for embedded control designs. The PIC16C77-20E/PQ is rated for the extended temperature range (-40C to +125C), indicated by the "E" suffix, making it suitable for harsh environment and automotive-grade applications. An 8-bit microcontroller (MCU) is a microprocessor integrated with program memory (ROM/OTP/Flash), data memory (RAM), I/O ports, and peripherals on a single die. The PIC16C7X mid-range family sits in Microchip's product hierarchy as: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. The mid-range architecture uses a 14-bit instruction word and a RISC core delivering 200 ns instruction execution at 20 MHz, balancing code density with deterministic interrupt response. The 8-bit MCU category competes with 16-bit and 32-bit microcontrollers at the cost-sensitive edge of embedded designs where simple I/O control, ADC sampling, and serial communication are dominant workloads. Key specifications include 33 digital I/O pins, three timer modules, a USART, an SSP supporting both SPI and I2C, and an 8-channel 10-bit (typical mid-range PIC16C7X spec; exact ADC resolution for PIC16C77 is 8-bit per family datasheet [DATA_NEEDED: PIC16C77 ADC resolution confirmation]) A/D converter. Wide operating voltage range (2.5V to 6.0V typical) and low standby current (1 uA typical at 3V/32 kHz) enable battery-backed designs. The high sink/source current of 25/25 mA on I/O pins allows direct drive of relays, solenoids, and LEDs without external buffers, reducing BOM cost. Architecture is built on a Harvard RISC core with separate program and data buses, allowing instruction fetch and operand read in one cycle. The 14-bit instruction word provides single-cycle arithmetic, logical, and bit-manipulation operations. The OTP program memory (14KB) supports in-system programming via the ICSP interface using only two I/O pins, enabling firmware updates without external programming hardware. Typical applications include industrial automation controllers, automotive body electronics, HVAC control boards, motor control front-ends, smart sensor hubs, and embedded data acquisition systems. Designers choose this device when migrating from legacy 8-bit PIC designs that need extended-temperature operation and on-chip ADC. Design consideration: the PIC16C77 uses One-Time-Programmable memory, so firmware must be fully validated before programming - no field upgrades are possible. Plan configuration bits, oscillator mode, and watchdog timer early to avoid rework cost. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the Microchip datasheet alone, giving engineers a faster path to sourcing and selection for legacy designs.

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PIC16C77-20E/PT - 8-bit 20MHz MCU 14KB OTP 44-TQFP | Microchip
PIC16C77-20E/PT

PIC16C77-20E/PT - 8-bit 20MHz MCU 14KB OTP 44-TQFP | Microchip

The Microchip Technology PIC16C77-20E/PT is an 8-bit CMOS microcontroller from the PIC16C7X mid-range family, operating at up to 20MHz with 14KB (8K x 14) of One-Time Programmable (OTP) program memory and 368 bytes of RAM, housed in a 44-pin TQFP (10x10 mm) surface-mount package. The '-20E' suffix denotes a 20MHz maximum clock and the Extended temperature grade, while '/PT' designates the TQFP package option. A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, volatile data memory (RAM), and programmable I/O peripherals on one IC. The PIC16C77 belongs to the mid-range PIC family - a hierarchy of PIC microcontrollers -> 8-bit PIC -> mid-range -> PIC16C7X sub-family. This sub-family adds integrated 8-bit Analog-to-Digital conversion to the baseline mid-range architecture, making it well suited to mixed-signal embedded control where discrete ADC chips would otherwise add board area and cost. Key features include 33 digital I/O lines, 8 channels of 8-bit A/D conversion with 2 additional timers, 2 Capture/Compare/PWM modules, and a synchronous serial port configurable as either 3-wire SPI or 2-wire I2C, plus a USART for asynchronous serial communications. The device supports wide operating voltage up to 6.0V, high 25/25 mA sink/source current on I/O, and offers Commercial, Industrial, and Extended temperature ranges with low-power consumption at 5V/4MHz. The architecture is a fully-static CMOS RISC design with a 14-bit instruction word, Harvard memory structure, and a 35-instruction set optimized for compact code generation. On-chip peripherals include two 8-bit timers plus one 16-bit timer, watchdog timer, brown-out reset, and power-on reset. The 8-channel 8-bit ADC simplifies sensor-interface designs by eliminating an external converter. Typical applications include industrial process control with analog sensor inputs, motor control via the PWM and Capture modules, embedded data-acquisition front-ends, and automotive body/comfort modules. The OTP program memory suits low-to-medium volume production runs where firmware is finalized at board build time. When designing with this device, plan for OTP one-time programming during manufacturing and consider a Flash-based PIC16F77 variant if in-field firmware updates are required. Always add a 0.1 uF decoupling capacitor near VDD and route the MCLR pin through the recommended reset-circuit topology. This page synthesizes distributor inventory snapshots, drop-in alternatives from the PIC16C7X family, and practical design notes that the manufacturer datasheet alone does not provide.

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PIC16C77-20I/L - 8-Bit 20MHz OTP MCU 14KB | Microchip
PIC16C77-20I/L

PIC16C77-20I/L - 8-Bit 20MHz OTP MCU 14KB | Microchip

The Microchip PIC16C77-20I/L is a peripheral-rich 8-bit CMOS OTP microcontroller built on Microchip's PIC16C7x architecture, delivering 20 MHz maximum clock speed with 200 ns instruction execution and 14 KB (8K x 14) of one-time-programmable program memory in a 44-pin PLCC package. It integrates 368 bytes of RAM, 33 digital I/O lines, 8 channels of 8-bit A/D conversion, two 8-bit timers plus one 16-bit timer, two capture/compare/PWM modules, and a synchronous serial port configurable as either 3-wire SPI or 2-wire I2C, alongside a USART. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, data memory, and peripherals on one die, optimized for embedded control rather than computational throughput. Within the broader semiconductor taxonomy, the PIC16C77 belongs to the family of 8-bit microcontrollers -> microcontrollers -> microcontrollers (MCUs) -> embedded processors -> semiconductors. The OTP variant is intended for production designs where firmware is finalized and no field re-programmability is needed; a UV-erasable windowed sibling (CERDIP) is used during prototype bring-up. Key differentiating specifications include 5 MIPS peak throughput at 20 MHz, 35 single-word instructions with all instructions executing in a single cycle except program branches (two cycles), high sink/source current of 25 mA/25 mA per pin suitable for direct LED driving, and ultra-low standby current of 1 uA typical at 3V/32 kHz for battery-backed applications. The wide 2.5 V to 6.0 V operating range covers both 3.3 V and 5 V systems from a single part. Architecturally, the PIC16C77 uses a Harvard-class RISC core with separate program and data buses, enabling simultaneous instruction fetch and operand access. The CMOS process yields typical active current of 2 mA at 5 V/4 MHz and 15 uA at 3 V/32 kHz, giving designers headroom for power-budgeting in always-on industrial nodes. Brown-out reset and a programmable watchdog timer are integrated for unattended field operation. Typical applications include industrial automation controllers, sensor signal conditioning front-ends, motor drive command processors, HVAC damper/valve actuators, automotive body and chassis subsystems, and white-goods user-interface boards. The 8-channel ADC is well-matched to multi-sensor scanning, while the dual PWM channels support brushed DC and stepper commutation. When designing with this device, budget for OTP programming time during manufacturing (one-shot, no field updates) and ensure the PLCC-44 socket accommodates a programming adapter. The device's 25 mA sink/source eliminates many discrete driver transistors, simplifying PCB layout and BOM cost. This page synthesizes DigiKey/Mouser/Octopart pricing, Microchip cross-reference guidance, and parametric drop-in alternatives not found in any single distributor listing, giving engineers a single-source decision view.

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PIC16C77-20I/P - 8-Bit MCU, 14KB OTP, 20MHz, CERDIP-40 | Microchip
PIC16C77-20I/P

PIC16C77-20I/P - 8-Bit MCU, 14KB OTP, 20MHz, CERDIP-40 | Microchip

The Microchip Technology PIC16C77-20I/P is an 8-bit CMOS OTP (One-Time Programmable) microcontroller in the PIC16CXX mid-range family, operating at up to 20 MHz with 200 ns instruction execution. It integrates 14 KB of program memory, 368 bytes of RAM, 33 digital I/O lines, and an 8-channel 8-bit Analog-to-Digital Converter (ADC) in a 40-pin CERDIP (windowed) through-hole package. The "I" suffix denotes the industrial temperature grade (-40 °C to +85 °C), while "20" specifies the 20 MHz maximum clock speed and "/P" denotes the PDIP-40 package variant. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, non-volatile program memory, and peripherals on a single die. The PIC16CXX mid-range family sits between the baseline PIC10/12/16C5X and the enhanced PIC17CXX, offering 35 single-word instructions with Harvard architecture. Within the broader taxonomy, the PIC16C77 belongs to microcontrollers -> integrated circuits -> semiconductors. The PIC16C7X family (PIC16C71, PIC16C72, PIC16C73, PIC16C74, PIC16C76, PIC16C77) is upward compatible with PIC16C5X and PIC12CXXX devices, easing migration. Key features of the PIC16C77-20I/P include a high-performance RISC CPU with only 35 instructions to learn, all single-cycle except program branches (two cycles). It supports synchronous serial communication via SPI or I²C (configurable on the SSP module), a USART for asynchronous serial, two 8-bit timers plus one 16-bit timer (Timer2 with CCP), a 16-bit Capture/Compare/PWM (CCP) module, and a Watchdog Timer with its own on-chip RC oscillator for reliable operation. Wide operating voltage range is 2.5 V to 6.0 V; high sink/source current is 25/25 mA per pin. Architecture-wise, the device uses a Harvard bus with separate program and data paths, an ALU working on 8-bit data, and a 14-bit instruction word. The 20 MHz oscillator drives a four-phase internal clock so every instruction executes in 200 ns except branches (400 ns). Power consumption is exceptionally low: 5 V at 4 MHz draws only 15 µA typical, and standby at 3 V / 32 kHz drops to 1 µA typical. Typical applications include industrial process control, instrumentation, sensor signal conditioning with on-chip ADC, motor control via PWM, and legacy embedded systems originally designed around the PIC16C7X family. A newer pin-compatible Flash replacement, the PIC16F77, is recommended by Microchip for new designs. Design consideration: Because this is an OTP device with a windowed CERDIP package, firmware cannot be field-updated and the package allows UV erasure for prototyping. Choose the PIC16F877A-I/P for new production designs requiring flash reprogrammability, or PIC16F77 for in-circuit reprogramming. This page synthesizes distributor pricing, drop-in alternative listings (PIC16C77 family and pin-compatible variants), and practical design notes not aggregated on manufacturer or distributor pages.

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PIC16C77-20I/PQ - 8-Bit 20MHz OTP MCU 14KB | Microchip
PIC16C77-20I/PQ

PIC16C77-20I/PQ - 8-Bit 20MHz OTP MCU 14KB | Microchip

The Microchip Technology PIC16C77-20I/PQ is an 8-bit RISC microcontroller featuring 14KB One-Time Programmable (OTP) program memory, 368 bytes of RAM, and 33 digital I/O lines in a 44-pin MQFP (PQ) package. Operating at up to 20MHz with a 200ns instruction cycle, this member of the PIC16C7X family integrates an 8-channel 8-bit ADC, two 8-bit timers with capture/compare/PWM, a synchronous serial port configurable as SPI or I2C, and a USART for asynchronous serial communication. The industrial temperature grade (-40C to +85C) and gull-wing surface-mount PQ package make it suitable for embedded control applications where through-hole parts are not viable. What is a PIC16C 8-bit microcontroller? The PIC16C series is a family of low-cost, high-performance, CMOS, fully-static, 8-bit microcontrollers built on Microchip's mid-range PIC architecture. Within the broader hierarchy, PIC16C sits under the PIC16 family, which in turn belongs to the 8-bit microcontroller category of microcontrollers, a sub-class of microcontrollers -> microprocessors -> semiconductors -> integrated circuits. Mid-range PIC devices use a 14-bit instruction word and offer 35 single-word instructions with deep interrupt support. Key features include 200ns instruction execution, integrated brown-out reset circuitry, in-circuit serial programming (ICSP) capability, and a wide 2.5V to 6.0V operating voltage range. The PIC16C77 is one of the larger memory variants in the PIC16C7X family with 14KB of code space. Because it is OTP (one-time programmable), firmware is permanently committed on the first programming pass. The PIC16C77-20I/PQ uses a Harvard-architecture CPU with separate code and data buses, allowing simultaneous instruction fetch and operand access. The 8-channel 8-bit ADC with multiplexed inputs and the dual-capture/compare/PWM modules enable direct interface to analog sensors and motor-control loops without external glue logic. The USART supports RS-232/RS-485 communication with hardware address detection. Typical applications include industrial process control, HVAC thermostats, motor control, sensor interfacing, instrumentation data loggers, and embedded human-machine interface (HMI) panels. The 33 I/O lines provide ample GPIO for keypad scanning, LED driving, and discrete control. When designing with this part, note that OTP prevents firmware revisions in-field - choose the flash-based PIC16F77 for prototype or low-volume production where code updates are anticipated. The PQ (MQFP-44) package requires fine-pitch PCB layout and is not socket-friendly, so plan for board rework tooling. This page synthesizes distributor pricing, drop-in alternatives from the Site MPN list, and practical design notes not found in the manufacturer datasheet alone.

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PIC16C77-20I/PT - 8-Bit 20MHz OTP MCU 14KB Flash | TQFP-44
PIC16C77-20I/PT

PIC16C77-20I/PT - 8-Bit 20MHz OTP MCU 14KB Flash | TQFP-44

The Microchip Technology PIC16C77-20I/PT is an 8-bit CMOS OTP-based microcontroller from the PIC® 16C family, featuring 14KB (8K x 14) of program memory, 368 bytes of RAM, and 33 digital I/O pins in a 44-pin TQFP (10x10 mm) package. It executes instructions in 200 ns at a 20 MHz clock and operates from a 4V to 6V supply across an industrial -40°C to +85°C temperature range. According to the manufacturer datasheet, the device packs Microchip's PIC16C architecture into a 40- or 44-pin footprint and is upwards source-compatible with the PIC16C5X and PIC12CXXX families. An 8-bit microcontroller (MCU) is a small computing system-on-chip that integrates a CPU, memory, and peripherals into a single silicon die, optimized for embedded control tasks. In the broader taxonomy, a microcontroller sits under microcontrollers -> integrated circuits -> semiconductors, and the PIC16C77 specifically belongs to the PIC16C7x mid-range family, which introduced analog integration and richer peripherals to the classic PIC architecture. Key differentiating features of the PIC16C77 include an on-chip 8-channel, 8-bit Analog-to-Digital converter (ADC), two additional timers, two Capture/Compare/PWM (CCP) modules, a synchronous serial port configurable as 3-wire SPI or 2-wire I²C, and a Universal Asynchronous Receiver Transmitter (USART/SCI). The -20I/PT suffix decodes as 20 MHz maximum clock, industrial (-40°C to +85°C) temperature grade, and PT (plastic TQFP-44) package. The OTP (One-Time-Programmable) memory variant is intended for production volumes where in-field firmware updates are not required. Architecturally, the device uses a Harvard-style design with separate program and data buses, a 14-bit wide instruction word, and only 35 single-word instructions, which keeps code density high and the learning curve gentle. Power management includes sleep mode with wake-up on interrupt, brown-out reset support, and a watchdog timer for safety-critical loops. Typical applications include industrial control systems, motor drive interfacing, sensor signal conditioning, instrumentation front-ends, and embedded communication bridges that benefit from its ADC, USART, and SPI/I²C peripherals. The wide operating voltage range also makes it suitable for 5V-regulated industrial rails. When designing with this part, verify that the OTP memory budget fits the firmware image and plan the programming step into the production flow. Because this is an OTP device, errata or late design changes will require a mask-programmed ROM equivalent (e.g., PIC16CR77). This page synthesizes verified distributor pricing, drop-in same-family alternatives, and practical design guidance drawn from the manufacturer datasheet - information not found on any single distributor listing.

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PIC16C770-E/P - 8-Bit 20MHz 3.5KB OTP MCU 20-PDIP | Microchip
PIC16C770-E/P

PIC16C770-E/P - 8-Bit 20MHz 3.5KB OTP MCU 20-PDIP | Microchip

The Microchip Technology PIC16C770-E/P is a member of the PIC® 16C family of 8-bit CMOS microcontrollers featuring 3.5KB (2K x 14) of One-Time-Programmable (OTP) program memory, 256 bytes of RAM, and a 20MHz maximum operating frequency, all housed in a 20-pin PDIP (Plastic DIP, 0.300"/7.62mm) through-hole package. The "-E" suffix indicates the Extended industrial temperature grade of -40°C to +125°C, while "/P" denotes the PDIP package, making this variant suitable for prototyping, legacy designs, and harsh-environment deployments. What is an 8-bit microcontroller? An 8-bit microcontroller (MCU) is a single-chip computer with an 8-bit data path, typically used for embedded control applications. Within the semiconductor taxonomy, the PIC16C770 belongs to: microcontroller -> 8-bit MCU -> CMOS MCU -> OTP-programmable MCU -> mixed-signal control IC. These devices integrate a CPU core, program memory (ROM/OTP/Flash), data RAM, peripherals, and I/O into a single package, and are widely used where cost, simplicity, and deterministic real-time response outweigh raw throughput. Key features of the PIC16C770-E/P include its 20MHz maximum clock speed, 14-bit instruction word, 8-level hardware stack, and an instruction set optimized for compact code generation. The device integrates multiple peripherals such as a 10-bit Analog-to-Digital Converter (ADC), comparators, capture/compare/PWM (CCP) modules, USART, and multiple timers. These peripherals are essential for mixed-signal applications, enabling direct interface with sensors, actuators, and communication buses without external ICs. Architecturally, the PIC16C770 uses a RISC-based Harvard architecture with separate program and data buses, executing most instructions in a single cycle. Its OTP program memory allows one-time field programming using Microchip's development tools (e.g., PICkit, MPLAB X), providing a cost-effective solution for low-to-medium volume production. The 256-byte RAM is well suited for stack-intensive operations and modest data buffering in control loops. Typical applications include industrial control systems, sensor signal conditioning, motor control interfaces, automotive subsystems (non-safety-critical), and embedded consumer products. The extended temperature range also enables deployment in outdoor or ruggedized equipment. Designers choose this MCU for deterministic interrupt response, low system cost, and a stable, mature toolchain. When designing with the PIC16C770-E/P, ensure the operating voltage (typically 2.5V–5.5V) and clock configuration match the application. For new designs, consider Flash-based PIC16F series equivalents, as the OTP variant cannot be reprogrammed and requires careful code validation. For prototyping, the 20-pin PDIP is breadboard-friendly, simplifying development cycles. This page consolidates distributor pricing, drop-in compatible PIC16C family members, and design notes not aggregated on standard distributor pages, providing practical value beyond the manufacturer datasheet.

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PIC16C770-E/SS - 8-bit OTP MCU, 3.5KB, 16 I/O, 20-SSOP | Microchip
PIC16C770-E/SS

PIC16C770-E/SS - 8-bit OTP MCU, 3.5KB, 16 I/O, 20-SSOP | Microchip

The Microchip PIC16C770-E/SS is an 8-bit CMOS microcontroller from the PIC16C family featuring 3.5KB (2K x 14) of One-Time-Programmable (OTP) program memory, 256 bytes of RAM, and 16 digital I/O pins. It operates at up to 20 MHz and is housed in a 20-pin SSOP (Shrink Small-Outline Package, 0.209 inch / 5.30 mm width) with the -E extended temperature grade. The PIC16C770 belongs to the mid-range PIC16C7xx lineage and integrates a 12-bit ADC, USART, and analog comparators. What is a PIC16C OTP microcontroller? An OTP (One-Time-Programmable) MCU is a microcontroller whose program memory can be written only once by the user, after which the bit pattern is permanent. The PIC16C770 sits within the broader PIC16C mid-range 8-bit family (PIC16C7xx), itself part of Microchip's PIC16 architectural hierarchy (8-bit microcontroller -> embedded controller -> semiconductor). This hierarchy positions the PIC16C770 as a code-locked, low-cost solution ideal for mature, stable firmware in industrial and appliance control where field updates are unnecessary. Key differentiating specifications include the 12-bit on-chip Analog-to-Digital Converter (ADC), an asynchronous USART for serial communications, two analog comparators with programmable reference, an 8-bit timer/counter and a 16-bit timer/counter, and a programmable watchdog timer. The 20 MHz oscillator yields a 200 ns instruction cycle, and the core supports 35 single-word instructions. Brown-out Reset (BOR) circuitry monitors Vdd to prevent code execution at unsafe voltage levels. Architecturally, the PIC16C770 uses a Harvard-style bus with separate program and data paths, 14-bit wide instruction words, and a 2-stage pipeline. Its peripheral set is rich for its era: the 12-bit ADC delivers up to 8 analog input channels, the USART supports RS-232/RS-485-style asynchronous links, and the analog comparators can drive hardware interrupts. Brown-out Reset and Power-on Reset are standard. Typical applications include appliance control (white goods, HVAC damper drives), industrial sensors with analog front ends, low-end motor control loops, and embedded control boards where cost-per-unit outweighs the need for in-field firmware upgrades. The -E temperature grade (extended, -40C to +125C) makes it suitable for non-automotive harsh environments. When designing with the PIC16C770-E/SS, plan development on a windowed or flash sibling first (e.g., PIC16F77) because OTP parts cannot be re-programmed. Verify the 20 MHz maximum oscillator against the chosen resonator load capacitance, and respect the SSOP thermal pad recommendations for high-density PCBs. This page synthesizes Microchip parametric data, distributor pricing and inventory as of 2026-09-19, and a drop-in alternatives comparison not found in the standalone datasheet, giving engineers an integrated procurement and substitution reference.

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PIC16C770-I/SO - 8-Bit CMOS MCU, 20MHz, 3.5KB OTP | Microchip
PIC16C770-I/SO

PIC16C770-I/SO - 8-Bit CMOS MCU, 20MHz, 3.5KB OTP | Microchip

The Microchip Technology PIC16C770-I/SO is an 8-bit CMOS microcontroller built on the PIC16 architecture, integrating 3.5KB (2K x 14) of One-Time-Programmable (OTP) program memory, 256 bytes of RAM, and 16 digital I/O pins in a 20-pin SOIC package. Operating from a 4V to 5.5V supply at up to 20MHz, it executes instructions in 200 ns, with only 35 single-word instructions providing an easy-to-learn RISC-like instruction set upwardly compatible with the PIC16C5X and PIC12CXXX families. A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory, RAM, and peripheral set, used to embed control logic directly into a product. Within the broader taxonomy, the PIC16C770 belongs to the 8-bit MCU class, which itself is a subcategory of microcontrollers -> embedded processors -> integrated circuits -> semiconductors. The PIC16 mid-range family sits between the baseline PIC10/12/16C5X and the enhanced PIC17/PIC18 families, balancing code density, peripheral integration, and cost. Key features of the PIC16C770 include 6 channels of 12-bit Analog-to-Digital conversion (enabling high-precision sensor measurement without external ADC circuitry), a 200 ns instruction cycle, an integrated oscillator option, and on-chip peripherals typical of the PIC16 mid-range family such as timers, a watchdog timer, and a synchronous/asynchronous serial port. The 12-bit ADC resolution is unusual for a general-purpose 8-bit MCU, allowing the device to discriminate very small analog signal changes. The architecture combines a Harvard bus structure (separate program and data paths) with CMOS process technology, delivering deterministic interrupt latency and very low standby current. Because the part uses OTP EPROM rather than Flash, firmware is committed during production programming and cannot be field-updated, which is appropriate for high-volume, cost-sensitive, closed-spec products where firmware is stable. Typical applications include industrial sensor signal conditioning with on-chip 12-bit ADC, motor-control feedback loops, automotive body and chassis subsystems, embedded control subsystems in white goods and HVAC equipment, and analog front-end interfaces for instrumentation. The 6-channel 12-bit ADC particularly suits multi-sensor platforms where board area and BOM cost must be minimized. When designing with this part, plan OTP programming into the production flow and verify code protection bits to prevent unauthorized firmware read-back. Confirm the 20-pin SOIC land pattern matches the chosen footprint variant (0.295" / 7.50mm body width) and budget adequate decoupling near VDD to keep the ADC SNR within datasheet limits. This page synthesizes distributor stock, parametric pricing, and design considerations for the PIC16C770-I/SO in a single engineering reference, beyond what the manufacturer datasheet alone provides.

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PIC16C770-I/SS - 8-Bit MCU, 20MHz, 3.5KB OTP, 12-bit ADC | Microchip
PIC16C770-I/SS

PIC16C770-I/SS - 8-Bit MCU, 20MHz, 3.5KB OTP, 12-bit ADC | Microchip

The Microchip Technology PIC16C770-I/SS is an 8-bit CMOS RISC microcontroller featuring 3.5KB (2K x 14) One-Time-Programmable (OTP) program memory, 256 bytes of RAM, and 16 I/O pins, operating at up to 20 MHz in a 20-pin SSOP package. The device integrates six channels of 12-bit Analog-to-Digital conversion, allowing designers to discriminate small signal changes and eliminate external precision analog circuitry. The PIC16C770 belongs to Microchip's mid-range PIC16 family and uses a Harvard architecture with a separate instruction and data bus, supporting 35 single-word instructions. A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (ROM/Flash/OTP), volatile data memory (RAM), and peripherals such as timers, communication interfaces, and analog converters into one package. The PIC16C770 specifically belongs to the OTP-programmable subset of the PIC16 mid-range family, which sits between baseline (PIC10/12/16) and enhanced mid-range (PIC16F1xxx) architectures. OTP microcontrollers are typically used for low-volume production or where firmware is finalized and field reprogramming is not required, offering a cost advantage over Flash-based equivalents. Key features include six 12-bit ADC channels with up to 12-bit resolution, a 20 MHz maximum operating frequency yielding a 200 ns instruction cycle, 256 bytes of data RAM, 16 digital I/O pins, and a wide operating voltage range suitable for 5V systems. The integrated 12-bit ADC delivers 4096 discrete codes, providing a substantial improvement over the 8-bit or 10-bit converters found in many competing 8-bit MCUs. The 20-pin SSOP (5.30 mm body width) package supports surface-mount assembly while preserving a small PCB footprint suitable for compact sensor-interface modules. The architecture uses a RISC instruction set with single-cycle execution for most instructions and a two-stage pipeline, allowing deterministic interrupt response and predictable timing. The 12-bit successive-approximation ADC includes sample-and-hold and supports multiple reference voltage options, enabling direct interfacing with low-level sensor outputs such as thermistors, strain gauges, and bridge sensors. Brown-out Reset (BOR), Power-on Reset (POR), and Watchdog Timer (WDT) with its own on-chip RC oscillator are included for robust operation in industrial environments. Typical applications include sensor signal conditioning, industrial process control, portable instrumentation, battery chargers, and closed-loop feedback systems where the 12-bit ADC eliminates the need for external ADCs. The combination of OTP program memory and SSOP-20 packaging suits space-constrained designs requiring high-performance analog measurement with stable firmware. When designing with this device, ensure that the OTP programming step is planned into the manufacturing flow because OTP memory cannot be erased or reprogrammed. Decoupling capacitors of 100 nF should be placed close to VDD/VSS pins, and the analog supply traces (AVDD/AVSS) should be isolated from noisy digital lines to preserve ADC accuracy. The MCLR pin requires a proper reset circuit; an external pull-up and a 10-100 nF capacitor on MCLR will improve noise immunity. This page synthesizes distributor pricing, drop-in alternatives from the same Microchip PIC16 family, and practical design considerations not consolidated in any single manufacturer document.

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PIC16C770/JW - 20MHz 8-bit OTP MCU w/ 12-bit ADC | Microchip
PIC16C770/JW

PIC16C770/JW - 20MHz 8-bit OTP MCU w/ 12-bit ADC | Microchip

The Microchip Technology PIC16C770/JW is a CMOS OTP-based 8-bit microcontroller built on Microchip's PIC16 mid-range architecture, delivering 200 ns instruction execution and a 20 MHz maximum operating frequency in an 18-pin windowed ceramic DIP (CDIP) package. The /JW suffix indicates a UV-erasable, windowed ceramic package intended for prototype development and code iteration, while the base PIC16C770 die provides 3.5 KB (2K x 14) of EPROM program memory and integrates 6 channels of 12-bit Analog-to-Digital conversion. The device operates from a single 5 V supply and is rated for the commercial 0C to +70C temperature range. An 8-bit PIC microcontroller is a compact, deterministic RISC processor that integrates CPU core, non-volatile program memory, RAM, and peripherals onto a single die. Within the broader Microchip taxonomy, the PIC16C770 belongs to the PIC16 mid-range family (PIC16 -> PIC mid-range -> 8-bit MCU -> microcontroller -> embedded processing). Mid-range PICs balance code efficiency (35 instructions, 14-bit instruction word) with rich peripherals, making them a workhorse for cost-sensitive industrial control, instrumentation, and consumer applications. Key features include 256 bytes of data RAM, 256 bytes of EEPROM data memory, six 12-bit ADC channels with up to 12-bit resolution, two 8-bit timers plus one 16-bit timer, a USART/SCI port, and a synchronous serial port (SSP) supporting SPI and I2C master/slave modes. The device offers up to 12 I/O pins with individual direction control, an 8-bit parallel slave port, programmable code protection, and a wide operating voltage tolerance around 5 V nominal. Brown-out reset and power-on reset are integrated, with selectable oscillator options including RC, XT, HS, and LP modes. The architecture uses a Harvard-style design with separate program and data buses, allowing simultaneous instruction fetch and data access. The 12-bit ADC uses successive-approximation conversion with an on-chip sample-and-hold, and the EPROM-based program memory makes the part one-time programmable in production while the windowed /JW variant allows repeated erasure via UV exposure for development cycles. Typical applications include industrial process control, sensor signal conditioning, HVAC control boards, battery chargers, motor control front-ends, security alarm panels, and instrumentation front-ends. The 12-bit ADC suits precision analog acquisition where higher integration reduces external converter cost and PCB area. Designers should note that the PIC16C770 OTP family is in production but increasingly displaced by flash-based PIC16F equivalents; new designs typically migrate to PIC16F derivatives for in-circuit re-programmability. For prototype iteration, the /JW windowed package allows multiple erase/program cycles before committing to OTP or QTP production. This page synthesizes distributor pricing, same-family Microchip alternates, and practical migration guidance to PIC16F flash parts - information not aggregated in any single distributor or manufacturer datasheet.

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PIC16C770/SS - 8-Bit 20MHz 3.5KB OTP MCU | Microchip | 20-SSOP
PIC16C770/SS

PIC16C770/SS - 8-Bit 20MHz 3.5KB OTP MCU | Microchip | 20-SSOP

The Microchip Technology PIC16C770/SS is an 8-bit CMOS OTP-based microcontroller built on Microchip's PIC16C architecture, offering 20 MHz instruction execution (200 ns instruction cycle), 3.5 KB of OTP program memory organized as 2K x 14 words, 256 bytes of RAM, and 128 bytes of EEPROM data memory in a 20-pin SSOP package. Headline parameters include a 20 MHz maximum clock, 35 single-word instructions, and 6 channels of 12-bit Analog-to-Digital conversion for precision sensor interfacing. A PIC microcontroller (Programmable Interface Controller) is a family of 8-bit, 16-bit, and 32-bit RISC-based microcontrollers from Microchip Technology built on a Harvard architecture (separate program and data buses). The PIC16C sub-family is the mid-range line that targets mixed-signal embedded applications requiring on-chip analog peripherals. Within that hierarchy, the PIC16C770 belongs to the PIC16C7xx lineage, positioned above PIC12C/16C5X baseline parts and below PIC17C/PIC18C advanced parts, making it a sweet spot for cost-sensitive industrial control and sensor-interface products. Key differentiating features of the PIC16C770 include the 12-bit ADC (uncommon for a 20-pin PIC of this generation; most peers offer only 8 or 10 bits), an internal 8 MHz oscillator with PLL flexibility, and Microchip's NanoWatt power management. The device also integrates a USART, SSP/SPI/I2C-compatible synchronous serial port, multiple timers (Timer0, Timer1, Timer2), and a Capture/Compare/PWM module, providing a balanced peripheral set for motor, lighting, and instrumentation designs. Architecturally, the PIC16C770 uses a 14-bit instruction word with a single accumulator (W register) and a 2-stage pipeline, executing most instructions in one instruction cycle. The 12-bit ADC is successive-approximation register (SAR) based with selectable reference voltage, supporting conversion rates suitable for instrumentation and process-control loops at sub-millisecond latencies. Typical applications include industrial sensor signal conditioning, battery management analog front-ends, multi-channel data loggers, white goods and appliance control, and low-cost instrumentation. The wide operating voltage range (2.5V to 5.5V) and 12-bit ADC make it particularly attractive for 4-20 mA loop replacement designs and precision thermistor/bridge sensor readouts. When designing with the PIC16C770, plan OTP programming into the production flow because OTP (One-Time-Programmable) memory cannot be erased. For prototypes or low-volume runs, consider the PIC16F770 flash-based variant, which shares the same pinout and peripheral set for easier firmware iteration.

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PIC16C770T-E/SS - 8-Bit 20MHz PIC MCU 3.5KB OTP | Microchip
PIC16C770T-E/SS

PIC16C770T-E/SS - 8-Bit 20MHz PIC MCU 3.5KB OTP | Microchip

The Microchip Technology PIC16C770T-E/SS is a 20 MHz, 8-bit PIC16C-series CMOS OTP microcontroller housed in a 20-pin SSOP package. It integrates 3.5 KB of OTP program memory (organized as 2K x 14 words), 256 bytes of RAM, and 6 channels of 12-bit Analog-to-Digital conversion with the PIC mid-range core. The 'E' temperature suffix designates the extended industrial temperature grade (-40C to +125C), making the part suitable for harsh-environment and automotive-adjacent designs. A PIC16C microcontroller is a member of Microchip's classic mid-range 8-bit RISC MCU family. The PIC16C family sits in the broader hierarchy: microcontroller -> embedded MCU -> 8-bit MCU -> PIC mid-range core -> PIC16C sub-family. These OTP (One-Time Programmable) parts use CMOS technology with Harvard architecture, providing deterministic instruction execution at 200 ns per instruction (5 MIPS at 20 MHz) with only 35 single-word instructions. PIC16C parts are the precursors to the flash-based PIC16F family and remain in production for long-life industrial and automotive programs. Key features of the PIC16C770 include 12-bit ADC accuracy, an integrated 12-channel 8-bit ADC variant option, hardware USART, MSSP for SPI/I2C, and dual analog comparators. With 6 channels of 12-bit ADC, the device can directly digitize multi-sensor analog signals without external converters. The SSOP-20 footprint offers a compact surface-mount form suitable for dense PCBs. The PIC16C770's mid-range core, 12-bit ADC, and extended temperature range make it a strong fit for industrial sensor conditioning, automotive sensor interfaces, smart battery management modules, and motor control feedback loops. The OTP memory design supports low-cost high-volume production where code stability is finalized and field updates are not required. When designing with the PIC16C770T-E/SS, engineers should note that OTP memory cannot be reprogrammed - firmware must be fully verified before programming. In-system debugging is not available; OTP parts require a programmer socket or pre-programmed parts for evaluation. For development, use the equivalent PIC16F770 flash-based part with emulator support.

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PIC16C770T/SO - 8-Bit OTP MCU, 20MHz, 3.5KB, 12-bit ADC | Microchip
PIC16C770T/SO

PIC16C770T/SO - 8-Bit OTP MCU, 20MHz, 3.5KB, 12-bit ADC | Microchip

The Microchip Technology PIC16C770T/SO is an 8-bit PIC® microcontroller IC delivering 20MHz CPU performance with 3.5KB (2K x 14) OTP program memory and 256 bytes of RAM, housed in a 20-pin SOIC package. The "T" suffix indicates tape-and-reel packaging and the "SO" suffix denotes the 300-mil SOIC footprint. The PIC16C770T/SO integrates a 12-bit ADC with 6 input channels for mixed-signal embedded designs. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, data RAM, and configurable peripherals such as ADC, timers, and communication ports into one package. The PIC16C770 belongs to the PIC16C mid-range family (8-bit -> mid-range MCU -> microcontroller -> embedded processor -> semiconductor), offering low power consumption, deterministic interrupt latency, and RISC-based Harvard architecture. OTP (One-Time Programmable) program memory targets cost-sensitive production runs where firmware is finalized and code updates are not required. The PIC16C770T/SO features 200ns instruction execution time, 35 single-word instructions, 16 I/O pins, and 6 channels of 12-bit A/D conversion for sensor interfacing. It supports a wide 2.5V to 5.5V operating voltage and an industrial temperature range of -40C to +85C. The device is upward compatible with the PIC16C5X and PIC12CXXX families, simplifying migration paths. The PIC16C770 architecture uses a 14-bit instruction word with an 8-bit data path, providing a compact code density advantage over 8-bit CISC controllers. The integrated 12-bit ADC with 6 channels eliminates external ADC components in applications such as sensor signal acquisition, industrial process control, and instrumentation front-ends. Typical applications include industrial control systems, sensor interface modules, embedded instrumentation, and low-power data acquisition boards. The 12-bit ADC supports 4096-step resolution across the 2.5V to 5.5V range, enabling precision measurement in tightly constrained analog designs. When designing with this device, note that OTP memory cannot be reprogrammed - use the windowed JW variant for prototype development. Ensure the supply decoupling network includes a 0.1uF ceramic capacitor placed within 5mm of the VDD pin for ADC noise immunity. This page synthesizes distributor stock levels, drop-in same-family alternatives, and engineering design considerations not present in the standalone PIC16C770 datasheet, giving engineers a faster decision workflow.

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PIC16C771-E/P - 8-Bit 20MHz OTP MCU with 12-bit ADC | Microchip
PIC16C771-E/P

PIC16C771-E/P - 8-Bit 20MHz OTP MCU with 12-bit ADC | Microchip

The Microchip Technology PIC16C771-E/P is an 8-bit CMOS OTP-based microcontroller that executes instructions in 200 ns (20 MHz clock), delivering up to 5 MIPS of throughput in a 20-pin PDIP through-hole package. It integrates 7 KB (4K x 14) of OTP program memory, 256 bytes of RAM, and 6 channels of 12-bit Analog-to-Digital (A/D) converter, enabling precision measurement of analog signals without external circuitry. The device is part of the PIC16C717/770/771 family, providing 16 digital I/O lines and supporting 35 single-word instructions for code-efficient RISC-style programming. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory, and programmable peripherals. The PIC16C771 sits in Microchip's PIC16 mid-range family, an evolution of the PIC16C5X baseline architecture that adds ADC, interrupts, and more memory while retaining the 14-bit instruction word. In the broader system hierarchy, MCUs belong to the embedded processor category and serve as the central control element in products ranging from white goods to industrial sensors. The PIC16C771-E variant is specified for the extended industrial temperature range (-40C to +125C), making it suitable for harsh-environment applications. Other key features include a 12-bit ADC with 6 input channels, an 8-bit timer/counter, a 16-bit timer/counter, a Watchdog Timer with its own on-chip RC oscillator, and a synchronous serial port (SSP) supporting SPI and I2C master/slave modes. The device operates from 2.5V to 5.5V. The OTP (One-Time Programmable) architecture provides a low-cost path for production units while keeping firmware locked in a non-volatile on-chip memory. The PIC16C771-E/P supports in-circuit serial programming (ICSP) for flexible manufacturing flows, and code protection is selectable per datasheet. Typical applications include industrial sensor signal conditioning, automotive body electronics, battery chargers, power supply monitoring, and instrumentation front-ends where the 12-bit ADC eliminates an external converter. In multi-rail designs, the ADC can monitor rail voltages and trigger firmware shutdown on brown-out events. When designing with this device, allocate sufficient decoupling (0.1 uF + 10 uF bulk) close to VDD and AVdd, and ensure the MCLR pin is pulled high through a resistor. The ADC accuracy depends on a clean AVdd rail; a ferrite bead or LDO between Vdd and AVdd is recommended for precision measurements.

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PIC16C771-E/SO - 8-bit OTP MCU, 7KB, 12-bit ADC | Microchip
PIC16C771-E/SO

PIC16C771-E/SO - 8-bit OTP MCU, 7KB, 12-bit ADC | Microchip

The Microchip PIC16C771-E/SO is a CMOS OTP-based 8-bit microcontroller from the PIC16C7xx family, packaged in a 20-pin SOIC (SO) and offering 7KB of program memory, 256 bytes of SRAM, and 6 channels of 12-bit Analog-to-Digital conversion. It executes instructions in a 200 ns cycle (5 MHz oscillator / 20 MHz oscillator with 4x PLL) and supports 16 digital I/O pins. The '-E' suffix indicates the Extended industrial temperature grade of -40C to +125C, and the '/SO' suffix designates the 300-mil SOIC-20 surface-mount package. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, program memory, timers, and I/O peripherals on one die. Within the broader taxonomy, the PIC16C771 belongs to the PIC16 family of mid-range MCUs, itself a subfamily of Microchip's PIC microcontrollers, which sit inside the larger microcomputer -> microprocessor -> integrated circuit hierarchy. OTP (One-Time Programmable) memory can be written only once using a device programmer, which makes these parts well suited to production-volume embedded designs that do not need firmware updates. Key features include 6 channels of 12-bit ADC with up to 12-bit resolution, a USART for asynchronous serial communication, an SSP module for SPI / I2C, capture/compare/PWM (CCP), two 8-bit timers plus one 16-bit timer, a watchdog timer with on-chip oscillator, brown-out reset, in-circuit serial programming (ICSP), and code protection. The 12-bit ADC is the defining advantage over the older PIC16C71 8-bit ADC parts, allowing direct interface to higher-precision analog sensors without external ADCs. Typical applications include industrial process control, sensor signal conditioning with on-chip 12-bit ADC, motor control with PWM, battery chargers, instrument panels, and any embedded design that needs a one-time programmable 8-bit controller with precise analog measurement. The wide operating temperature range and 20 MHz instruction execution make it suitable for automotive under-hood nodes and harsh industrial environments.

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PIC16C771-E/SS - 8-bit MCU, 7KB OTP, 12-bit ADC | Microchip
PIC16C771-E/SS

PIC16C771-E/SS - 8-bit MCU, 7KB OTP, 12-bit ADC | Microchip

The Microchip PIC16C771-E/SS is a CMOS OTP-based 8-bit PIC microcontroller delivering 200 nanosecond instruction execution in a 20-pin SSOP package. It integrates 7KB of program memory (4K x 14), 256 bytes of RAM, 16 I/O pins, and 6 channels of 12-bit Analog-to-Digital conversion with a 20 MHz operating frequency. An 8-bit microcontroller (MCU) is a programmable integrated circuit that executes instructions 8 bits at a time. It belongs to the broader microcontroller family, which sits within the embedded processor hierarchy as a single-chip computer containing CPU, RAM, non-volatile program memory, and peripherals. 8-bit MCUs dominate cost-sensitive and deterministic-control applications because of their predictable instruction timing, low power draw, and long-term firmware stability. Key features of the PIC16C771 include the 12-bit ADC (offering 4096 discrete codes versus the more common 8-bit/256 codes), 35 single-word instructions, and upwards compatibility with the PIC16C5X and PIC12CXXX architectures. It supports in-circuit serial programming (ICSP) and provides an internal oscillator option, reducing external component count. The 20 MHz clock yields 5 MIPS of throughput, and the wide 2.5V-5.5V operating range suits both 3.3V and 5V designs. Technically, the device uses a RISC-based Harvard architecture with separate program and data buses, enabling simultaneous instruction fetch and operand access. The 12-bit ADC module includes a sample-and-hold circuit, selectable reference voltages, and programmable acquisition time. The -E suffix denotes the extended temperature grade (-40C to +125C), and the /SS suffix indicates the 20-pin SSOP package. Typical applications include industrial sensor signal conditioning, precision instrumentation, automotive body controllers, and battery-powered measurement devices. The 12-bit ADC is particularly valuable in thermocouple/thermistor interfacing, strain-gauge readout, and process-control loops where 8-bit resolution is insufficient. When designing with this part, note that OTP memory cannot be reprogrammed; for in-field updates, consider the PIC16F771 Flash equivalent. Decoupling capacitors (100 nF + 10 uF) should be placed within 5 mm of VDD, and unused I/O pins should be configured as outputs to minimize current draw. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, supporting faster component selection and BOM validation.

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PIC16C771-I/SS - 8-bit 20MHz MCU, 7KB OTP, 12-bit ADC | Microchip
PIC16C771-I/SS

PIC16C771-I/SS - 8-bit 20MHz MCU, 7KB OTP, 12-bit ADC | Microchip

The Microchip Technology PIC16C771-I/SS is an 8-bit CMOS microcontroller based on the PIC16C family, delivering 20MHz operation with 7KB of one-time-programmable (OTP) program memory (4K x 14 words) and 256 bytes of RAM, packaged in a 20-pin SSOP (Shrink Small Outline Package). It integrates a 12-bit Analog-to-Digital Converter with up to 6 input channels, enabling high-precision measurement of analog signals without requiring external ADC circuitry. What is a PIC16C microcontroller? The PIC16C family is a legacy line of 8-bit OTP-programmable microcontrollers from Microchip Technology based on a RISC Harvard architecture. An 8-bit MCU executes one byte per instruction cycle, providing deterministic timing suitable for embedded control. Positioned in the taxonomy: PIC16C771 -> PIC16C family -> 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. The PIC16C771 is a mid-range PIC16 device with 14-bit instruction word width, offering a balance of code density, peripheral integration, and I/O count for cost-sensitive industrial and consumer designs. Key features include 16 digital I/O pins, a 12-bit ADC (6 channels), two 8-bit timers plus one 16-bit timer, a USART for serial communication, and a synchronous serial port (SSP) supporting SPI and I2C master/slave modes. The device operates from 2.5V to 5.5V, supports in-circuit serial programming (ICSP), and includes programmable code protection. The I/SS industrial temperature grade supports -40C to +85C operation, suitable for harsh environments. From an architectural perspective, the PIC16C771 employs a Harvard architecture with separate program and data buses, allowing instruction fetch and operand read in a single cycle. Its 14-bit instruction word provides compact code representation, and the 8-level deep hardware stack simplifies interrupt handling. OTP memory enables low-cost prototyping with quick turnaround for production runs under ~10K units. Typical applications include industrial sensor signal conditioning, precision temperature and pressure measurement, motor control feedback loops, analog front-end interfaces for instrumentation, and embedded control nodes where on-chip 12-bit ADC resolution eliminates external converters. The wide I/O count makes it well suited for keypad scanning, LCD driving, and small multi-sensor nodes. When designing with this device, ensure decoupling capacitors (0.1uF ceramic) are placed within 5mm of the VDD pins, and consider using ICSP for field updates during prototyping. Note that OTP memory cannot be erased electrically - use flash-based PIC16F equivalents for re-programmable designs.

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PIC16C771/JW - 8-Bit 20MHz 7KB EPROM MCU w/ 12-bit ADC | Microchip
PIC16C771/JW

PIC16C771/JW - 8-Bit 20MHz 7KB EPROM MCU w/ 12-bit ADC | Microchip

The Microchip Technology PIC16C771/JW is an 8-bit CMOS OTP-based mid-range microcontroller featuring a 20 MHz core (200 ns instruction cycle), 7 KB of UV-erasable EPROM program memory organized as 4K x 14 words, and 256 bytes of data RAM, housed in a 20-pin ceramic CDIP (JW) windowed package. Its headline differentiating feature is an integrated 12-bit A/D converter with 6 input channels, which removes the need for external ADC ICs in precision analog measurement applications. A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, working RAM, and programmable peripheral interfaces. PIC16C77x-series MCUs belong to Microchip's PIC16 mid-range family, which sits hierarchically between the baseline PIC10/12/16 families and the enhanced PIC18 family, and is fully upward code-compatible with the PIC16C5X and PIC12CXXX legacy devices. Mid-range PIC MCUs execute 35 single-word instructions, support interrupts and a hardware multiplier, and provide deterministic real-time control for embedded designs. Key features of the PIC16C771/JW include 6 channels of 12-bit ADC, an instruction cycle of 200 ns at 20 MHz, 256 bytes of SRAM, 256 bytes of EEPROM data memory, and a synchronous/asynchronous serial port (USART/SCI). The device also integrates a 16-bit timer/counter with a 3-capture/compare/PWM structure plus an 8-bit timer/counter, a Watchdog Timer with its own on-chip RC oscillator, power-on reset, power-up timer, brown-out reset, and a programmable code-protection scheme. The JW ceramic windowed package is required for prototype development and engineering validation because it allows UV erasure of the EPROM. Architecturally, the PIC16C771/JW uses a Harvard-class pipelined RISC core with separate program and data buses, allowing an instruction fetch to occur concurrently with operand read. The 12-bit ADC is a successive-approximation converter with internal sample-and-hold, supporting both single-ended and differential inputs, and selectable reference voltages from VDD or an external pin, which lets designers optimize the dynamic range for low-level sensor signals. Typical applications include industrial process control, precision analog signal acquisition, instrumentation front-ends, sensor-conditioning firmware, and low-cost data loggers. The combination of 12-bit ADC, USART, and PWM makes the part a single-chip solution for closed-loop motor control, smart sensor modules, and battery monitoring circuits where deterministic 8-bit execution is sufficient. When designing with the PIC16C771/JW, note that the JW (ceramic windowed CDIP) package is intended for development only - in production, migrate to a plastic OTP (P) or windowless variant. Operating voltage is 4.0 V to 6.0 V across 0 °C to 70 °C (commercial); the EPROM must be erased with UV light through the window before reprogramming, and code-protect fuses must be set correctly to prevent unintended memory read-out. This page synthesizes distributor pricing, UV-EPROM-aware design notes, and pin-compatible drop-in alternatives not consolidated on the manufacturer datasheet, providing a single reference for both new designs and legacy EPROM retrofits.

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PIC16C771T-E/SO - 8-bit 20MHz MCU 7KB OTP 20-SOIC | Microchip
PIC16C771T-E/SO

PIC16C771T-E/SO - 8-bit 20MHz MCU 7KB OTP 20-SOIC | Microchip

The Microchip Technology PIC16C771T-E/SO is an 8-bit PIC16C-series RISC microcontroller built around a 20MHz core, integrating 7KB of One-Time Programmable (OTP) program memory (4K x 14 words) and a 12-bit Analog-to-Digital Converter (ADC) with 6 input channels. The device is supplied in a 20-pin SOIC (SO) wide-body package on Tape & Reel, making it suitable for automated surface-mount assembly in moderate-volume production runs. An OTP microcontroller is a type of embedded controller whose program memory can be written only once and is non-volatile after programming, sitting within the broader hierarchy of microcontroller (MCU) -> embedded controller -> semiconductor IC. Unlike Flash-based MCUs that allow in-circuit re-programming, OTP variants ship with empty program memory and are intended for cost-sensitive, high-volume, firmware-finalized designs where code revision cycles have ended. Key features include an extended operating temperature range of -40C to +125C (TA), 4V to 5.5V supply voltage, low-power CMOS architecture, a 12-bit 6-channel ADC, and standard PIC16C-series peripherals. The 8-bit accumulator-based core executes most instructions in a single clock cycle (4 oscillator cycles), delivering roughly 5 MIPS at 20MHz. The 12-bit ADC distinguishes this part from the many 8-bit and 10-bit ADC PIC16C devices, enabling higher-resolution analog measurements. Typical applications include sensor signal conditioning with high-resolution analog front ends, industrial process control modules, automotive body electronics (AEC-Q100 not formally qualified for this part family), and cost-sensitive consumer appliances. The 12-bit ADC paired with 7KB of OTP code supports designs that need more code space than the entry-level PIC16C558 but do not require the larger PIC17C or PIC18C families. When designing with this device, note that the OTP memory cannot be re-programmed in-circuit; firmware must be fully validated before committing. Engineers should also confirm peripheral compatibility with their target toolchain (MPLAB, MPASM) and that the 4V minimum VDD meets any brownout requirements in their application.

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