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PIC16C77-04/PT

PIC16C77-04/PT - 4MHz 8-bit OTP MCU 14KB Flash | Microchip

The Microchip Technology PIC16C77-04/PT is an 8-bit CMOS OTP-based microcontroller from the PIC16C7X mid-range family, delivering 4 MHz maximum CPU clock speed with a 200 ns instruction cycle, 14 KB (8K x 14) one-time-programmable program memory, 368 bytes of RAM, and 33 digital I/O lines, all packaged in a 44-pin TQFP (10x10 mm) surface-mount form factor with commercial temperature rating. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (ROM/RAM), and peripherals on a single silicon die. The PIC16C7X series belongs to the broader PIC microcontroller taxonomy (PIC16 family -> mid-range 8-bit core -> PIC16C7X sub-family), uses a RISC instruction set with only 35 single-word instructions, and is OTP (one-time programmable) rather than Flash, meaning the program memory can be programmed once and not re-programmed in-circuit. Key features include an 8-channel 8-bit Analog-to-Digital Converter (ADC), two 8-bit timers plus one 16-bit timer, two Capture/Compare/PWM (CCP) modules, a Synchronous Serial Port (SSP) configurable as SPI or I2C, and a USART for asynchronous serial communication. The wide operating voltage range of 2.5 V to 6.0 V and high sink/source current capability of 25 mA per pin directly drive LEDs and small relays without external buffers. Architecturally, the PIC16C77 separates program and data buses (Harvard architecture) to allow simultaneous instruction fetch and data access, and uses a 14-bit wide instruction word for compact opcode encoding. At 5 V and 4 MHz typical operating current is below 2 mA active and below 1 µA in standby, supporting battery-powered designs. Typical applications include industrial control panels, sensor signal conditioning, motor drive PWM controllers, instrumentation with ADC inputs, and embedded control subsystems that benefit from 33 I/O lines and rich analog/digital peripherals in a single chip. When designing with this part, note that OTP memory cannot be re-programmed, so firmware must be fully validated before device programming. Modern equivalent PIC16F77 (Flash) is recommended for new designs requiring in-system re-programmability. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC16C77-04E/P

PIC16C77-04E/P - 8-bit CMOS MCU, 14KB EPROM, 4MHz | Microchip

The Microchip Technology PIC16C77-04E/P is an 8-bit CMOS RISC microcontroller with integrated 8-channel 8-bit A/D converter, housed in a 40-pin PDIP (windowed CERDIP) package. The device executes instructions at 200 ns cycle time, runs at 4 MHz maximum operating frequency, and features 14 KB (8K x 14) of one-time-programmable EPROM program memory with 368 bytes of RAM and 33 digital I/O lines. An 8-bit CMOS microcontroller is a single-chip computer that integrates a CPU, memory (ROM/RAM), and programmable I/O peripherals on one silicon die. The PIC16C77 belongs to the mid-range PIC16C family, which sits hierarchically above base-line PIC16C5X devices and below enhanced PIC18 architectures. CMOS technology provides low static power consumption and high noise immunity compared to NMOS predecessors, making these MCUs suitable for battery-powered and industrial applications. Key features of the PIC16C77-04E/P include a wide operating voltage range of 2.5V to 6.0V, high sink/source current capability of 25 mA/25 mA per I/O pin, and low-power consumption of 15 µA typical at 5V/4 MHz and 1 µA typical standby at 3V/32 kHz. The device supports commercial, industrial, and extended temperature ranges, and incorporates a high-performance RISC CPU with only 35 single-word instructions to learn, all single-cycle except for program branches. The architecture uses a Harvard-style separate instruction and data bus with a 14-bit instruction word optimized for compiled C code density. The integrated ADC delivers 8 channels of 8-bit resolution, supporting direct interface with analog sensors. A synchronous serial port (SSP), USART, and capture/compare/PWM modules provide flexible peripheral integration for motor control, communication, and timing applications. Typical applications include industrial control systems, instrumentation, automotive body controllers (non-AEC-Q100 qualified), sensor signal conditioning with on-chip ADC, and embedded consumer products requiring OTP program memory. The wide voltage range makes it well-suited to 5V regulated designs and battery-backed systems. When designing with this device, remember that the 'C' suffix denotes CMOS EPROM-based OTP memory, which is one-time programmable and not field-erasable. For modern designs consider the flash-based PIC16F877A or PIC18F4550 in compatible pin footprints. A minimum of 2.0V must be maintained on VDD during operation to prevent brown-out; use the built-in BOR module for robust reset behavior. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, giving engineers a complete reference for sourcing and designing the PIC16C77-04E/P.

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PIC16C77-04E/PT

PIC16C77-04E/PT - 8-bit 4MHz 14KB OTP MCU 44-TQFP | Microchip

The Microchip Technology PIC16C77-04E/PT is an 8-bit CMOS OTP-based microcontroller built on Microchip's PIC16C mid-range architecture, operating at up to 4 MHz with 14 KB (8K x 14) of program memory and 368 bytes of RAM, housed in a 44-pin TQFP (10x10 mm) surface-mount package. It features 33 digital I/O pins, an 8-channel 8-bit Analog-to-Digital Converter, two additional timers, two Capture/Compare/PWM modules, a synchronous serial port configurable as 3-wire SPI or 2-wire I2C, and a USART for asynchronous serial communication. What is an 8-bit microcontroller? An 8-bit microcontroller is a small computer-on-a-chip integrating a CPU, program memory (ROM/OTP/Flash), data memory (RAM), I/O peripherals, and timers on a single die. The PIC16C77 belongs to Microchip's PIC16C family - mid-range CMOS microcontrollers positioned above the baseline PIC16C5X and below the PIC17C/PIC18C high-end families, designed for cost-sensitive embedded control in industrial and commercial applications. Key features of the PIC16C77-04E/PT include 200 ns instruction execution time (only 35 single-word instructions), wide operating voltage range of 4.0 V to 6.0 V, and high sink/source current capability of 25/25 mA per I/O pin. The 'E' suffix designates the Extended temperature grade (-40C to +125C), while the '04' suffix denotes 4 MHz maximum clock speed, and the '/PT' suffix indicates the 44-pin TQFP package supplied in tray packaging. The device incorporates several integrated peripherals essential for robust embedded designs: Brown-out Detect/Reset (BOD), Power-on Reset (POR), Pulse Width Modulation (PWM), and a Watchdog Timer (WDT) with its own on-chip RC oscillator. Low-power operation is supported via SLEEP mode and a 1 uA typical standby current at 3 V/32 kHz. The architecture is upwards compatible with PIC16C5X and PIC12CXXX devices, easing migration for legacy designs. Typical applications include industrial automation controllers, motor control (via the two CCP/PWM modules), sensor signal conditioning (using the 8-channel 8-bit ADC), battery chargers, security and alarm panels, and automotive body electronics within the extended temperature range. Microchip officially recommends the newer PIC16F77 Flash-based part as the modern replacement for the OTP PIC16C77, supporting the same peripherals and pinout. When designing with the PIC16C77-04E/PT, note that OTP (One-Time Programmable) memory cannot be erased or rewritten - firmware must be fully validated before programming. For prototype or low-volume production, consider the Flash-based PIC16F877A in the same 44-pin TQFP package as a fully compatible alternative. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, enabling engineers to make informed sourcing and design decisions.

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PIC16C77-04I/L

PIC16C77-04I/L - 8-Bit 4MHz OTP MCU 14KB | Microchip

The Microchip Technology PIC16C77-04I/L is an 8-bit CMOS OTP-based microcontroller in the PIC16C mid-range family, delivering 4 MIPS performance from a 4 MHz external oscillator in a 44-pin PLCC package with industrial temperature rating. The device integrates 14 KB of one-time-programmable program memory (8K x 14 words), 368 bytes of RAM, 33 digital I/O lines, and an 8-channel 8-bit Analog-to-Digital converter, addressing embedded applications that require mixed signal acquisition and digital control. An 8-bit microcontroller (MCU) is a single-chip computer containing a CPU, non-volatile program memory, working RAM, I/O peripherals, and timers on one die. Within the PIC taxonomy, the PIC16C family belongs to the mid-range RISC architecture and is upwards-compatible with the earlier PIC16C5X baseline devices, forming part of Microchip's broader microcontroller portfolio that scales from 6-pin PIC10F parts up to 100-pin PIC18F devices. Key features of the PIC16C77-04I/L include a Harvard RISC CPU executing 35 single-word instructions in a single 200 ns instruction cycle (branches take two cycles), an industrial -40C to +85C operating range, a wide 2.5 V to 6.0 V supply voltage range, and 25 mA source/sink current per I/O pin for direct LED or transistor drive. Capture/Compare/PWM, USART, and synchronous serial port peripherals are included for motor control and communications. Architecturally, the device uses a 14-bit instruction word with separate program and data buses, allowing simultaneous instruction fetch and data access. On-chip RC oscillator, watchdog timer, brown-out reset, and power-on reset improve system robustness in industrial environments with noisy supplies. The A/D converter has 8 input channels multiplexed onto a single successive-approximation ADC, suitable for sensor arrays. Typical applications include industrial process control, motor drive, instrumentation, HVAC controls, automotive body electronics, and embedded data acquisition. The PIC16C77's combination of ADC, PWM, and USART peripherals makes it well suited to closed-loop feedback systems where multiple sensor inputs must be sampled and actuator outputs driven in real time. A key design consideration is that the PIC16C77 uses OTP EPROM, so code cannot be re-programmed in-circuit; designers should plan for the PIC16F877A or PIC16F77 flash-based counterpart when code revisions are anticipated during development or field updates. This page consolidates distributor pricing, pin-compatible drop-in alternatives, and practical design notes drawn from the Microchip datasheet family to support sourcing and redesign decisions.

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PIC16C77-04I/P

PIC16C77-04I/P - 8-Bit OTP MCU 14KB 4MHz 40-PDIP | Microchip

The Microchip Technology PIC16C77-04I/P is an 8-bit CMOS OTP (one-time programmable) microcontroller from the PIC16C7X family, delivering 4MHz maximum clock speed (200ns instruction cycle) with 14KB program memory (8K x 14 words), 368 bytes of RAM, and 33 digital I/O lines housed in a 40-pin PDIP (Plastic DIP) package. According to the Microchip datasheet, this part integrates an 8-channel 8-bit Analog-to-Digital Converter (ADC), one 8-bit timer and two CCP (Capture/Compare/PWM) modules, making it a self-contained mid-range controller for embedded designs. A PIC16C microcontroller is a member of Microchip's PIC (Peripheral Interface Controller) family of RISC-based 8-bit microcontrollers, sitting within the mid-range PIC16 hierarchy. It belongs to the broader category of microcontrollers -> embedded processors -> semiconductor ICs. The '16C' suffix indicates CMOS One-Time Programmable (OTP) EPROM program memory, distinguishing it from the flash-based PIC16F family and the ROM-based PIC16CR family. PIC16C7x parts were among the first mid-range PICs to integrate on-chip ADC, freeing designs from external analog conversion. Key features include 35 single-word instructions (single-cycle except program branches which take two cycles), 8-level deep hardware stack, 14-bit instruction word, an operating voltage range of 4.0V to 5.5V, and an industrial temperature range of -40C to +85C (denoted by the 'I' suffix). The 40-pin PDIP package is a through-hole form factor suitable for development, prototyping, educational kits, and legacy production systems that require socketed devices for field replacement. Technical depth: the part uses a Harvard architecture with separate program and data buses, allowing instruction fetch to overlap with data access. The RISC-style instruction set keeps most operations single-cycle, so throughput at 4MHz is approximately 4 MIPS. On-chip peripherals include a USART for serial communication, MSSP (Master Synchronous Serial Port) for SPI/I2C, and 8 channels of 8-bit ADC for sensor interfacing. The industrial-grade temperature range and OTP memory make this part well-suited to medium-volume production where Flash reprogrammability is not required. Typical applications include industrial control systems, HVAC controllers, motor control front-ends, sensor signal conditioning, embedded instrumentation, and educational/hobbyist microcontroller boards. The on-chip ADC and PWM peripherals suit closed-loop feedback designs such as temperature controllers and small DC motor drivers. When designing with this part, note that OTP memory cannot be erased or reprogrammed - firmware must be 100% verified before programming. Engineers should consider the newer PIC16F77 (Flash-based) for new designs, or PIC16C77-04/PQ / 04/L variants if a different package is needed while preserving pinout compatibility within the family. This page synthesizes distributor pricing, same-family drop-in alternatives, and design considerations not found on the manufacturer datasheet front page.

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PIC16C77-04I/PQ

PIC16C77-04I/PQ - 8-Bit CMOS MCU, 14KB OTP, 4MHz, 44-MQFP | Microchip

The Microchip PIC16C77-04I/PQ is a high-performance 8-bit CMOS OTP microcontroller featuring 14KB of one-time-programmable program memory, 368 bytes of RAM, 8 channels of 8-bit A/D conversion, and three timer/counter modules. It executes a 35-instruction RISC set in 200 ns per instruction at 4 MHz from a 2.5 V to 6.0 V industrial-temperature supply, and is housed in a 44-pin Metric Quad Flat Pack (MQFP) package designated by the suffix PQ. Background Knowledge - An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (here OTP, programmed once by the user), working RAM, peripheral interfaces and I/O onto one silicon die. PIC16C7X-family parts belong to Microchip's mid-range architecture, which adds hardware timers, a synchronous/asynchronous serial port (USART/SCI), a parallel slave port and on-chip A/D converters to the baseline 14-bit instruction word used in PIC12C/PIC16C5X baseline devices. They sit hierarchically between PIC10/12/16 baseline MCUs (smaller, cheaper) and PIC17/PIC18 enhanced MCUs (wider bus, more memory), and are used wherever deterministic real-time control, small pin count and easy programmability outweigh the need for modern peripherals. Key features include 200 ns instruction cycle time at 4 MHz, 8-channel 8-bit A/D converter with up to 8 analog inputs, three timer/counter modules (Timer0, Timer1, Timer2), a universal synchronous/asynchronous receiver-transmitter (USART/SCI), a synchronous serial port (SSP) supporting SPI and I²C master/slave modes, a parallel slave port (PSP) for external bus attachment, high sink/source current of 25/25 mA per I/O pin, and a 14-bit wide instruction word that keeps code compact. Watchdog timer with on-chip RC oscillator and code protection further harden the device against firmware corruption. Architecture depth - the mid-range core uses a Harvard architecture with separate 14-bit program memory and 8-bit data paths, a hardware multiply is absent, and interrupts are vectored through a single interrupt controller. Low-power consumption is quoted at 15 µA typical at 5 V, 4 MHz and as low as 1 µA typical standby at 3 V, 32 kHz, allowing battery-backed industrial nodes. Typical applications include industrial control systems, sensor signal conditioning, instrumentation with analog front-ends, simple motor and actuator controllers, HVAC and appliance controllers, automotive body electronics (non-safety), and embedded data acquisition front-ends. Design consideration - the -04 speed grade limits the oscillator to 4 MHz; switching to PIC16C77-10 (10 MHz) or PIC16C77-20 (20 MHz) is required if the application uses higher clock rates. The 'I' suffix denotes the industrial temperature range (-40 °C to +85 °C). This page synthesises distributor pricing, drop-in alternatives and practical design notes for the PIC16C77-04I/PQ not found in the manufacturer datasheet.

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PIC16C77-10/L

PIC16C77-10/L - 8-Bit 10MHz OTP MCU, 14KB, 44-PLCC | Microchip

The Microchip Technology PIC16C77-10/L is an 8-bit CMOS OTP-based microcontroller from the PIC® 16C mid-range family, operating at up to 10 MHz with 14 KB (8K x 14) of program memory and 368 bytes of RAM, packaged in a 44-pin PLCC (16.59 x 16.59 mm, J-Lead). A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory (ROM/Flash/EPROM), data memory (RAM), and peripherals such as timers, I/O ports, ADCs, and communication interfaces. The PIC16C77 belongs to the mid-range PIC16C family, positioned within the PIC architecture hierarchy of PIC10/12/14/16/18/24/dsPIC families, and is built on OTP (One-Time Programmable) EPROM technology, meaning the program memory can be written only once but offers mature, well-characterized CMOS behavior. Key features include 33 digital I/O lines, an 8-channel 8-bit A/D converter, three timers (Timer0, Timer1, Timer2), a USART module for serial communication, and an instruction execution time of 200 ns at 10 MHz. The device operates from 4.0 V to 6.0 V across an industrial temperature range of -40 °C to +85 °C, and is upward code-compatible with PIC16C5X and PIC12CXXX devices, easing migration for legacy designs. Architecturally, the PIC16C77 uses a Harvard-style RISC core with 35 single-word instructions, a hardware stack of 8 levels, and direct/indirect addressing modes. Its CMOS-EPROM process gives low standby current (~1 µA typical) and robust noise immunity, while on-chip peripherals such as the Capture/Compare/PWM module and the parallel slave port make it suitable for embedded control tasks without external glue logic. Typical applications include industrial automation controllers, motor control front-ends, instrumentation with analog sensing, automotive body electronics modules, and legacy embedded systems requiring a 5 V supply rail. The 33 I/O pins allow direct connection to keypads, LED or LCD displays, and analog sensors through the integrated ADC. When designing with the PIC16C77-10/L, note that OTP memory cannot be erased, so firmware must be fully verified before programming; a windowed UV-erasable variant (PIC16C77JW) is recommended for prototype development. The 44-PLCC footprint simplifies through-hole and socketed assembly, supporting field-replaceable modules in industrial equipment. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, enabling faster sourcing and design-in decisions.

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PIC16C77-10/P

PIC16C77-10/P - 8-Bit 10MHz CMOS MCU, 14KB OTP, 40-PDIP | Microchip

The Microchip Technology PIC16C77-10/P is an 8-bit CMOS OTP-based RISC microcontroller operating at 10 MHz with 14 KB (8K x 14) of program memory, 368 bytes of RAM, and 33 digital I/O lines, housed in a 40-pin PDIP (Plastic DIP) through-hole package. It belongs to the PIC16C7X mid-range family, integrating an 8-channel 8-bit Analog-to-Digital Converter, one 8-bit timer/counter and two 16-bit timer/counters, a USART (SCI) port, an SPI/I2C master synchronous serial port, and a Capture/Compare/PWM module on-chip. What is a PIC16C7X microcontroller? The PIC16C7X is a low-cost, high-performance, CMOS, fully-static, 8-bit microcontroller family in Microchip's PIC mid-range architecture. Mid-range PIC MCUs sit between baseline (PIC10/12/16C5X) and enhanced (PIC18) architectures in the taxonomy: 8-bit microcontroller -> PIC16 family -> mid-range core. The PIC16C7X adds integrated peripherals (ADC, PWM, USART) over baseline PICs while retaining only 35 single-word instructions, simplifying code development and code reuse. Key features include a 200 ns instruction execution time, single-cycle instruction execution (except two-cycle branches), a wide operating voltage range of 2.5 V to 6.0 V, and high sink/source current capability of 25 mA / 25 mA per I/O. Power-saving features include standby current of 1 µA typical at 3 V / 32 kHz, a low-power Run current of 15 µA typical at 5 V / 4 MHz, and a programmable Watchdog Timer with its own on-chip RC oscillator. The device is available in commercial, industrial, and extended temperature grades. The PIC16C77-10/P uses a Harvard RISC architecture with separate program and data buses, a 14-bit wide instruction word, and a 13-bit program counter capable of addressing 8K x 14 words. The 8-channel 8-bit ADC supports successive-approximation conversion with analog input multiplexing across PORTA and PORTE, enabling mixed-signal applications without an external ADC. A Capture/Compare/PWM module plus the dual 16-bit timer/counters support motor-control and waveform-generation tasks. Typical applications include industrial process-control front ends, instrumentation with on-board A/D conversion, motor-control low-end drives, sensor signal-conditioning front ends, and embedded control of small appliances. Designers benefit from Microchip's mature MPLAB development toolchain, MPASM assembly support, and Hi-Tech C compiler heritage. When designing with the PIC16C77-10/P, allocate decoupling (0.1 µF ceramic close to VDD), reserve the MCLR pin for an external reset supervisor if long-term field reliability is critical, and verify OTP programming voltage (VDD ~13 V typical during program mode) so production programmers can handle it. The 'C' family is OTP-only; for reprogrammable Flash use, Microchip recommends the pin-compatible PIC16F77 (Flash) variant. This page synthesizes distributor pricing, lifecycle status, and pin-compatible alternatives not consolidated on any single distributor page, including a side-by-side same-package comparison and a list of Microchip's newer Flash drop-in candidates.

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PIC16C77-10/PQ

PIC16C77-10/PQ - 14KB OTP 8-bit MCU, 44-PQFP, 20MHz | Microchip

The Microchip Technology PIC16C77-10/PQ is a CMOS, fully-static, OTP-based 8-bit microcontroller belonging to the PIC16C7X mid-range family, offered in a 44-pin Plastic Quad Flat Pack (MQFP/PQFP) package. It executes instructions in a 200 ns single-cycle period (at 20 MHz clock), features 14 KB of program memory and 368 bytes of RAM, and integrates 33 digital I/O lines plus an 8-channel, 8-bit Analog-to-Digital converter, two additional timers, two Capture/Compare/PWM modules, and a synchronous serial port configurable as 3-wire SPI or 2-wire I2C alongside a USART. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, volatile data memory, and peripheral interfaces on one die. PIC microcontrollers belong to the broader hierarchy: 8-bit microcontroller -> microcontroller -> embedded processor -> semiconductor. The PIC16C7X mid-range family is upwardly instruction-compatible with the PIC16C5X baseline and PIC12CXXX devices, allowing code portability across the family while offering richer peripherals. Key features include 35 single-word instructions, a 4 to 5.5 V supply range, an 8-bit ADC with 8 input channels, hardware USART for asynchronous/synchronous serial communication, a synchronous serial port (SSP) for SPI or I2C master/slave operation, two CCP modules for PWM generation or input capture, two 8-bit timers plus one 16-bit timer (Timer1), and a watchdog timer with its own on-chip RC oscillator. The 44-pin PQFP provides ample I/O for interfacing with displays, sensors, and external memory in commercial-temperature embedded designs. Architecturally, the PIC16C77 uses a Harvard-style memory organization with separate program and data buses, a 14-bit instruction word, and a peripheral-rich mid-range core that supports priority-based interrupts. The OTP (One-Time-Programmable) program memory is suited to volume production where code is finalized, while the UV-erasable CERDIP variant supports development; the /PQ suffix denotes the windowless Plastic Quad Flat Pack. Typical applications include industrial control panels, instrumentation, sensor interfacing with on-chip ADC, motor control using CCP/PWM outputs, embedded communication bridges (USART, SPI, I2C), and consumer appliance controllers. The wide I/O count also suits keypad-scanned human-machine interfaces and small graphical LCD drivers. When designing, observe the 4.0 V minimum supply for oscillator start-up, ensure decoupling capacitors are placed within 1 cm of VDD/VSS pins, and confirm that the ADC acquisition time meets the source-impedance requirements of the chosen analog channel. New designs should evaluate the flash-based PIC16F77 as a direct pin-compatible modern alternative with in-circuit reprogrammability. This page synthesizes distributor pricing, drop-in alternatives, pinout detail, and practical design notes not found in a single source on the manufacturer datasheet, enabling faster BOM validation and second-source decisions.

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PIC16C77-10/PT

PIC16C77-10/PT - 8-bit OTP MCU, 14KB EPROM, 33 I/O | Microchip

The Microchip Technology PIC16C77-10/PT is a CMOS OTP-based 8-bit microcontroller from the PIC16C7X family, executing instructions in 200 ns at a 20 MHz clock. The device integrates 14 KB of one-time-programmable (OTP) program memory, 368 bytes of RAM, 33 digital I/O lines, and an 8-channel 8-bit Analog-to-Digital (A/D) converter, all packaged in a 44-pin TQFP (PT) surface-mount housing. Peripheral support includes two 8-bit timers, one 16-bit timer, two Capture/Compare/PWM (CCP) modules, a synchronous serial port configurable as 3-wire SPI or 2-wire I2C, and a USART for asynchronous serial communications. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, well suited to cost-sensitive embedded control tasks such as motor control, sensor interfacing, and human-machine interfaces. PIC microcontrollers in particular combine a RISC-style instruction set (35 single-word instructions for the PIC16C7X family) with separate program and data buses (Harvard architecture), yielding deterministic instruction timing that simplifies real-time firmware development. Within the broader taxonomy, the PIC16C77 belongs to the PIC microcontroller family, itself a sub-family of 8-bit microcontrollers within the larger category of microcontrollers and integrated circuits. The PIC16C77-10/PT differentiates itself from the PIC16C76 sibling primarily through expanded memory (14 KB EPROM versus 8 KB) and a larger pin count, while remaining instruction-set and footprint compatible with earlier PIC16C5X and PIC12CXXX devices. Wide operating voltage support (2.5 V to 6.0 V), 25 mA source/sink current per I/O, and low-power modes (standby current of 1 µA typical at 3 V / 32 kHz) enable the part to serve battery-backed and industrial environments. Industrial and Extended temperature grades are available, suiting automotive body electronics, appliance control, and instrumentation front-ends. Typical applications include industrial control panels, HVAC fan and damper control, uninterruptible power supply (UPS) front-panel logic, sensor-signal conditioning, and low-cost motor drive interfaces. Designers migrating from PIC16C5X designs gain additional peripheral capability (A/D, CCP, USART) without a learning curve, while those targeting flash-reprogrammable equivalents can move directly to the PIC16F77, which Microchip identifies as the recommended successor for new designs. When designing with this device, plan for OTP programming infrastructure: a windowed (UV-erasable) variant is unavailable, so firmware must be fully validated before programming. Ensure adequate decoupling (100 nF plus 10 µF bulk) on VDD, keep analog and digital supply traces short, and reference Microchip application notes for CCP PWM and A/D acquisition timing. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that are not collated on the manufacturer product page or datasheet alone.

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PIC16C77-10E/L

PIC16C77-10E/L - 8-Bit OTP MCU 14KB Flash 44-PLCC | Microchip

The Microchip PIC16C77-10E/L is an 8-bit CMOS OTP (One-Time Programmable) microcontroller from the PIC16C7X mid-range family, operating at up to 10 MHz with 14 KB (8K x 14) of program memory and 368 bytes of RAM, housed in a 44-pin PLCC (Plastic Leaded Chip Carrier) package. The "-10" speed suffix denotes a 10 MHz oscillator input yielding a 200 ns instruction cycle, while the "E" temperature grade designates the extended industrial range of -40C to +125C, and the "L" package designator specifies the J-leaded 44-PLCC form factor measuring 16.59 x 16.59 mm. An 8-bit microcontroller (MCU) is a small computer-on-a-chip that integrates a CPU, program memory, data RAM, and peripherals onto a single silicon die. Within the broader semiconductor hierarchy, the PIC16C77 sits as a mid-range 8-bit MCU under the PIC16 family, itself under the Microchip PIC architecture tree, classified as a general-purpose embedded microcontroller. The "16C" prefix indicates the classic CMOS OTP (UV-erasable windowed or one-time-programmable) process generation that preceded modern flash-based PIC16F parts, used widely in the 1990s and still maintained today for legacy industrial designs. Key features include 33 I/O pins across five ports, an 8-channel 8-bit Analog-to-Digital (A/D) converter, two 8-bit timers plus one 16-bit timer, a synchronous serial port configurable as SPI or I2C, a USART, two Capture/Compare/PWM (CCP) modules, and a watchdog timer. The high-performance RISC CPU executes 35 single-word instructions, with most instructions completing in a single 200 ns cycle. Brown-out reset and power-on reset circuitry protect against invalid operation during supply transients, while the wide 2.5 V to 6.0 V operating range supports both 3.3 V and 5 V designs. Typical applications include industrial process control, automotive body and chassis subsystems, appliance controllers, and embedded instrumentation requiring on-chip ADC and serial communication. Design considerations include ceramic resonator or crystal selection for the oscillator, in-circuit serial programming (ICSP) header implementation for OTP devices, and thermal management within the 44-PLCC exposed-pad footprint for full industrial temperature operation. This page consolidates Microchip datasheet parameters, current distributor pricing tiers, and drop-in PLCC-44 alternatives so engineers can select the correct OTP mid-range MCU without leaving the page.

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PIC16C77-10E/PT

PIC16C77-10E/PT - 8-Bit 10MHz OTP MCU 14KB Flash 44-TQFP | Microchip

The Microchip Technology PIC16C77-10E/PT is an 8-bit CMOS OTP-based microcontroller from the PIC® 16C family, operating at up to 10MHz instruction execution with 14KB (8K x 14) of one-time programmable program memory, 368 bytes of RAM, and 33 digital I/O pins, housed in a 44-pin TQFP (10x10 mm) surface-mount package. The integrated 8-channel, 8-bit Analog-to-Digital Converter, two 8-bit timers, one 16-bit timer with capture/compare/PWM, a synchronous serial port configurable for SPI or I2C, and a USART make it a versatile embedded controller. An MCU (microcontroller unit) is a single-chip computer containing a CPU core, non-volatile program memory, working RAM, peripherals, and I/O - essentially a complete compute subsystem on one IC. The 8-bit PIC16C family targets low-cost, deterministic, low-power embedded applications where simple register-level programming, predictable interrupt latency, and small footprint outweigh the throughput advantages of 16/32-bit cores. The PIC16C77 is the upper-memory sibling of the PIC16C76 within the mid-range PIC16C6X/7X family, adding 8K words of code space and an extended instruction set. Key features of the PIC16C77-10E/PT include a wide operating voltage range of 2.5V to 6.0V, 25 mA source/sink current per I/O to directly drive LEDs or small relays, low-power consumption (typical <2 mA active at 5V/4MHz), and three temperature grades. The "-10E" suffix indicates 10MHz maximum frequency and the Extended (-40C to +125C) temperature range. The 44-TQFP (PT) package variant also offers 40-pin PDIP (P) and 44-pin PLCC (L) options for through-hole and socketed designs. Architecturally, the PIC16C77 uses a Harvard RISC core with separate program and data buses, allowing simultaneous instruction fetch and data access. The 14-bit wide instruction word supports single-word single-cycle instructions with 200 ns minimum cycle time at 10MHz. The on-chip peripherals are mapped into a 368-byte register file and 8-level hardware stack, and an integrated power-on reset / brown-out detector / watchdog timer trio provides unsupervised operation. The synchronous serial port can be configured as SPI master/slave or I2C, while the AUSART delivers asynchronous or synchronous serial communication. Typical applications include industrial automation controllers, sensor signal conditioning with on-chip ADC, motor and lighting control with PWM, HVAC user-interface panels, automotive body and accessory ECUs, and consumer appliance controllers. Its 33 I/O lines comfortably support mid-sized user interfaces with keypads, displays, and indicator LEDs. When designing with the PIC16C77-10E/PT, the OTP memory constraint is critical: program code must be fully verified before production programming because OTP cannot be erased. For prototype or field-updatable designs, use the flash-based PIC16F77 drop-in successor. Always include decoupling capacitors within 10 mm of the VDD/VSS pins, and respect the 6.0V absolute-maximum supply. This page synthesizes distributor pricing, drop-in alternatives, application notes, and design considerations not consolidated in the manufacturer datasheet.

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PIC16C77-10I/P

PIC16C77-10I/P - 8-Bit 10MHz OTP MCU 14KB | Microchip

The Microchip Technology PIC16C77-10I/P is an 8-bit CMOS OTP-based microcontroller running at 10 MHz instruction frequency with 14 KB (8K x 14) of program memory, 368 bytes of RAM, and 33 digital I/O lines in a 40-pin PDIP through-hole package. As a member of the PIC16C7X mid-range family, it integrates 8 channels of 8-bit analog-to-digital conversion, two 8-bit timers plus one 16-bit timer, two capture/compare/PWM modules, a synchronous serial port configurable as SPI or I2C, and a USART for asynchronous serial communication. The -10 speed grade denotes 10 MHz maximum oscillator, 200 ns instruction cycle, while the /P suffix indicates a 40-pin plastic DIP industrial-temperature package. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data bus and a Harvard or modified-Harvard architecture, integrating CPU, RAM, non-volatile program memory, and peripherals on one die. Within the broader semiconductor hierarchy, an MCU sits under microcontrollers -> embedded processors -> digital ICs. The PIC16C7X family is part of Microchip's mid-range PIC16 architecture, the workhorse tier between baseline PIC10/12/16 devices and high-performance PIC18/dsPIC parts. OTP memory (one-time programmable) means the program memory is written once by a programmer and is not erasable in-circuit, making these parts cost-optimized for fixed-code production volumes. Key specifications include a wide 2.5 V to 6.0 V operating voltage range, 25 mA source/sink current per I/O, low-power modes drawing as little as 1 uA typical standby at 3 V/32 kHz, 14-bit-wide instruction word, and only 35 single-word instructions to learn. The device executes nearly every instruction in a single 200 ns cycle except program branches which take two cycles, giving deterministic throughput that simplifies real-time control loops. Typical applications include industrial control panels, motor drive signal conditioning, HVAC sensor interfaces, automotive body controllers (where the /P industrial grade suffices), security and access control panels, and white-goods appliance controllers. The integrated ADC eliminates external converter ICs for multi-channel analog monitoring; the USART plus SSP (SPI/I2C) covers most legacy sensor busses. A critical design consideration is that PIC16C77 is OTP, not flash - firmware cannot be re-programmed in the field. Designs needing in-application updates should migrate to the PIC16F77 flash successor, which is pin-compatible. Always place 0.1 uF decoupling close to VDD and reserve a 10 kohm pull-up on MCLR for reliable reset. This page synthesizes distributor pricing, datasheet spec sheets, drop-in PIC16F77 alternative, and practical design notes not found in the manufacturer datasheet alone.

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PIC16C77-10I/PQ

PIC16C77-10I/PQ - 8-Bit MCU, 14KB OTP, 10MHz, 44-MQFP

The Microchip Technology PIC16C77-10I/PQ is an 8-bit CMOS RISC microcontroller with 14KB of one-time-programmable (OTP) program memory, packaged in a 44-pin Metric Quad Flat Pack (MQFP) and operating at up to 10 MHz from a 4.0 V to 5.5 V supply. The "-10" speed suffix indicates a 10 MHz maximum oscillator frequency and 100 ns minimum instruction cycle, while the "I" suffix denotes an industrial temperature grade of -40 °C to +85 °C. An OTP-based PIC microcontroller (One-Time-Programmable MCU) is a microcontroller whose program memory is implemented as EPROM that can be written only once; it belongs to the broader category of microcontrollers -> embedded processors -> digital ICs. Within the PIC16CXX mid-range family, the PIC16C77 is positioned as a high-pin-count variant that integrates an 8-channel 8-bit Analog-to-Digital Converter (ADC), a USART serial port, a Synchronous Serial Port (SSP), two Capture/Compare/PWM (CCP) modules, a Parallel Slave Port (PSP), and 33 digital I/O lines. The RISC Harvard architecture executes 35 single-word instructions in a single instruction cycle (200 ns at 10 MHz, except program branches which take two cycles), enabling deterministic real-time control. Key differentiating features include the integrated 12-source interrupt controller with a hardware context save, the 8-channel multiplexed ADC with configurable acquisition time, and the parallel slave port that allows direct connection to an external 8-bit data bus. The 192-byte general-purpose RAM (368 bytes total data memory including peripherals) supports a 14-bit instruction word and 8-bit data path, and the watchdog timer with on-chip RC oscillator provides failsafe operation. Brown-out reset (BOR) and power-on reset (POR) circuitry are integrated. Typical applications are industrial process controllers, instrument front-ends with ADC, motor-control signal pre-processing, embedded HMI controllers, and legacy automotive body modules. Designers choose the PIC16C77-10I/PQ when a deterministic 8-bit core, integrated analog, and a 44-pin QFP footprint are needed at low unit cost. Designers should evaluate whether a Flash-based PIC18 or PIC16F1xx successor provides more headroom if field reprogrammability is required, since OTP parts cannot be erased.

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PIC16C77-10I/PT

PIC16C77-10I/PT - 8-bit OTP MCU, 14KB, 33 I/O, 44-TQFP | Microchip

The Microchip Technology PIC16C77-10I/PT is a high-performance 8-bit CMOS OTP microcontroller in the PIC16C7X mid-range family, packaged in a 44-pin TQFP (PT) and operating at up to 10 MHz with 200 ns instruction execution. It integrates 14 KB (8K x 14) of one-time-programmable program memory, 368 bytes of RAM, 33 digital I/O lines, an 8-channel 8-bit A/D converter, two 8-bit timers plus one 16-bit timer, two Capture/Compare/PWM modules, a synchronous serial port configurable as SPI or I2C, and a USART with on-chip hardware. The 'I' suffix denotes the industrial -40C to +85C operating temperature range. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, working RAM, and a configurable set of peripherals (ADC, timers, communication ports, GPIO) into one package. Within the broader product hierarchy, the PIC16C77 belongs to the 8-bit microcontroller category, which itself sits within the microcontroller family and the larger integrated-circuit class used in embedded systems. The 'OTP' (one-time-programmable) designation means the program memory can be written exactly once via a programmer, after which the code is permanent - this makes OTP MCUs economical for mature, low-cost-volume production. Key differentiating features include 200 ns instruction execution (5 MIPS at 10 MHz), a RISC architecture with only 35 single-word instructions, an 8-channel 8-bit ADC for mixed-signal sensing, dual PWM outputs for motor or lighting control, and a versatile USART plus configurable SSP. Compared with flash equivalents in the PIC16F family, the OTP memory trades re-programmability for unit-cost reduction in shipping products. Architecturally the PIC16C77 uses a Harvard bus (separate program and data paths) with a 14-bit-wide instruction word and an 8-bit data path, yielding compact code density. The CMOS static design allows the clock to be slowed or stopped for low-power operation, and the brown-out reset, watchdog timer, and power-on reset blocks harden the device against real-world supply noise. Typical applications include industrial motor control (using the CCP PWM and USART for inverter feedback), process instrumentation (with the 8-channel ADC scanning sensors), appliance control boards, security and access-control panels, and embedded data-acquisition front-ends. The 44-TQFP package provides ample I/O for human-machine interface or field-bus use. When designing with the PIC16C77-10I/PT, plan for OTP programming logistics: a windowed (JW) version is required for code development and verification, after which the OTP-PT part is programmed in production. Provide clean 5 V decoupling and route the analog AVdd/AVss pins with separated grounds to preserve ADC accuracy. This page consolidates distributor stock, drop-in alternatives in the same TQFP-44 footprint, comparison data versus the flash PIC16F77 successor, and practical design notes not found on any single distributor listing.

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PIC16C77-20/L

PIC16C77-20/L - 8-Bit 20MHz 14KB OTP MCU 44-PLCC | Microchip

The Microchip Technology PIC16C77-20/L is a member of the PIC16C7X mid-range microcontroller family, an 8-bit CMOS fully-static MCU with a 20 MHz maximum clock speed, 14 KB (8K x 14) of One-Time-Programmable (OTP) program memory, and 368 bytes of RAM, housed in a 44-pin PLCC (16.59 x 16.59 mm) package with through-hole J-leads. The part is specified for the commercial 4.0 V to 5.5 V operating range and integrates 8 channels of 8-bit Analog-to-Digital conversion, a USART, an SSP/SPI/I2C peripheral, two Capture/Compare/PWM modules, three timers, a watchdog timer with its own on-chip RC oscillator, and 33 digital I/O lines organized across ports A through E. The architecture delivers 200 ns instruction execution with only 35 single-word instructions, all single-cycle except program branches which are two-cycle, and is upwards source-code compatible with the PIC16C5X and PIC12CXXX baselines. What is a mid-range 8-bit OTP microcontroller? An OTP MCU is a CMOS microcontroller whose program memory is fabricated as one-time-programmable EPROM - it can be written exactly once by an in-circuit programmer or via the parallel programming mode, after which the program becomes permanent and cannot be erased or rewritten. Mid-range PIC MCUs sit between baseline (PIC10/12/16C5X) and enhanced (PIC17/18) families, balancing cost, peripheral integration, and a small 14-bit instruction word well-suited to byte-oriented embedded control. In the broader taxonomy, the PIC16C77 is a microcontroller -> embedded controller -> semiconductor, and the OTP variant is preferred over UV-erasable CERDIP for cost-sensitive production where firmware is finalized before PCB assembly. Key differentiating features: 8-channel 8-bit ADC integrated on-chip (rare in this era of MCUs), 33 I/O pins for direct interface to numeric keypads, character LCDs, and parallel peripherals, 200 ns instruction cycle enabling deterministic real-time control at 5 MIPS, and a hardware USART plus MSSP for asynchronous serial and synchronous SPI/I2C communication. The PIC16C77's enhanced capture/compare/PWM (ECCP) peripheral supports half-bridge and full-bridge motor control without external driver logic. Typical applications include industrial process controllers, HVAC thermostats and sensor front-ends, motor-control boards, instrumentation front panels, low-end point-of-sale terminals, and general-purpose embedded control where program code is stable and the unit cost advantage of OTP outweighs in-field re-programmability. The 44-PLCC footprint is also socket-friendly, allowing factory programming followed by socketed field installation. When designing with this part, note that the OTP memory cannot be re-flashed; if in-field firmware updates are anticipated, select the PIC16F77 (Flash) variant instead. Ensure Vdd decoupling with a 100 nF ceramic plus 10 uF tantalum bulk cap near the IC, and respect the parallel programming high-voltage requirements on RB3/RB6/RB7 (must be isolated from load circuitry). Use the on-chip watchdog with its dedicated RC oscillator to recover from firmware deadlock without external components.

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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

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

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

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

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

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

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

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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PIC16C77-04/PT - 4MHz 8-bit OTP MCU 14KB Flash | Microchip

PIC16C77-04E/P - 8-bit CMOS MCU, 14KB EPROM, 4MHz | Microchip

PIC16C77-04E/PT - 8-bit 4MHz 14KB OTP MCU 44-TQFP | Microchip

PIC16C77-04I/L - 8-Bit 4MHz OTP MCU 14KB | Microchip

PIC16C77-04I/P - 8-Bit OTP MCU 14KB 4MHz 40-PDIP | Microchip

PIC16C77-04I/PQ - 8-Bit CMOS MCU, 14KB OTP, 4MHz, 44-MQFP | Microchip

PIC16C77-10/L - 8-Bit 10MHz OTP MCU, 14KB, 44-PLCC | Microchip

PIC16C77-10/P - 8-Bit 10MHz CMOS MCU, 14KB OTP, 40-PDIP | Microchip

PIC16C77-10/PQ - 14KB OTP 8-bit MCU, 44-PQFP, 20MHz | Microchip

PIC16C77-10/PT - 8-bit OTP MCU, 14KB EPROM, 33 I/O | Microchip

PIC16C77-10E/L - 8-Bit OTP MCU 14KB Flash 44-PLCC | Microchip

PIC16C77-10E/PT - 8-Bit 10MHz OTP MCU 14KB Flash 44-TQFP | Microchip

PIC16C77-10I/P - 8-Bit 10MHz OTP MCU 14KB | Microchip

PIC16C77-10I/PQ - 8-Bit MCU, 14KB OTP, 10MHz, 44-MQFP

PIC16C77-10I/PT - 8-bit OTP MCU, 14KB, 33 I/O, 44-TQFP | Microchip

PIC16C77-20/L - 8-Bit 20MHz 14KB OTP MCU 44-PLCC | Microchip

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

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

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

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

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

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

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

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