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PIC16C774-I/P - 8-Bit 20MHz 7KB OTP MCU | Microchip | PDIP-40
PIC16C774-I/P

PIC16C774-I/P - 8-Bit 20MHz 7KB OTP MCU | Microchip | PDIP-40

The Microchip Technology PIC16C774-I/P is an 8-bit CMOS OTP-based RISC microcontroller packaged in a 40-pin PDIP (through-hole) form factor. It integrates 7KB (4K x 14) of One-Time-Programmable program memory, 256 bytes of RAM, 33 digital I/O lines, and 10 channels of 12-bit Analog-to-Digital (A/D) conversion, executing instructions at 20MHz with a 200ns instruction cycle. The industrial-temperature (-40C to +85C) PIC16C774 is part of the PIC16C77x mid-range family and is upward code-compatible with the PIC16C5X and PIC12CXXX devices. An 8-bit microcontroller (MCU) is a small computer-on-a-chip built around an 8-bit data bus and CPU core, typically used in embedded control applications. The PIC16C family employs Microchip's RISC-based Harvard architecture, sitting in the broader hierarchy of microcontrollers -> microcontrollers (MCU) -> microcontrollers/microprocessors -> semiconductors. The OTP variant allows single-time programming for cost-sensitive production runs, while remaining pin-compatible with the flash-based PIC16F74 and PIC16F877 cousins. Key features include 10 channels of 12-bit A/D conversion (a notable differentiator over the 8-bit A/D on older PIC16C7x parts), a 200ns instruction execution time, hardware USART, MSSP/SPI/I2C peripheral, three timers, capture/compare/PWM (CCP) module, and an internal watchdog timer with on-chip oscillator. The 33 I/O pins drive LEDs, relays, and low-power logic directly. Brown-out reset and power-on reset provide robust startup, while the wide 2.5V-5.5V operating range simplifies multi-rail designs. The PIC16C774's CMOS RISC core executes a streamlined 35-instruction set, achieving near-1 MIPS/MHz throughput. Twelve-bit A/D resolution enables precision measurement of analog signals - eliminating the external circuitry typically needed for high-accuracy sensor reading - and the device supports in-circuit serial programming for production-line firmware updates via two pins. Typical applications include industrial process control, motor control, HVAC systems, instrumentation, and any precision-measurement embedded system requiring on-chip 12-bit ADC. The PIC16C774 is well suited to battery-backed sensor nodes where 12-bit A/D precision reduces post-processing calibration overhead. When designing with this device, allocate enough decoupling (0.1uF + 10uF) near VDD, follow Microchip's PCB layout guidelines for the analog VDD/VSS pair, and verify that OTP programming is performed within the device's specified VDD window (typically 4.5V-5.5V). This page synthesizes live distributor pricing, validated drop-in PIC16C77x family alternatives, and engineering guidance that goes beyond the bare datasheet table, providing a single-source decision aid for engineers and buyers.

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PIC16C774-I/PQ - 8-Bit 20MHz 7KB OTP MCU, 12-bit ADC | Microchip
PIC16C774-I/PQ

PIC16C774-I/PQ - 8-Bit 20MHz 7KB OTP MCU, 12-bit ADC | Microchip

The Microchip Technology PIC16C774-I/PQ is an 8-bit CMOS OTP-based microcontroller in the PIC16C family, delivering 20 MHz (200 ns instruction cycle) performance with 7 KB (4K x 14) of program memory and 256 bytes of RAM, housed in a 44-pin MQFP (10x10 mm) package. The device integrates a 12-bit Analog-to-Digital converter with up to 10 input channels, two 8-bit timers and one 16-bit timer/counter, a USART, an SPI/I2C-compatible Synchronous Serial Port (SSP), and 33 digital I/O pins organized across five ports (PORTA-PORTE). A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (ROM/Flash/OTP), data memory (RAM), and peripheral interfaces such as ADC, timers, and communication controllers. PIC microcontrollers use a RISC Harvard architecture with a small instruction set (35 single-word instructions in the PIC16C77x family) that simplifies programming and shortens development cycles; PIC MCUs sit within the broader taxonomy of microcontrollers -> microprocessors -> embedded processors -> semiconductors. The PIC16C77x mid-range family is widely used for industrial control, instrumentation, and consumer products requiring moderate performance with rich analog and digital I/O. Key features include brown-out detect (BOD) and power-on reset (POR) for robust supply supervision, a programmable watchdog timer, an in-circuit serial programming (ICSP) interface, and an operating voltage range of 4.0 V to 5.5 V (-I industrial temperature grade -40C to +85C). The 12-bit ADC supports 10 channels of analog input, allowing high-resolution measurement of sensor signals without external ADC circuitry. The instruction set is upwards compatible with PIC16C5X and PIC12CXXX devices, easing migration from older designs. The PIC16C774 architecture pairs a 14-bit-wide program memory bus (typical of mid-range PIC16) with an 8-bit data path, enabling single-cycle instruction fetch and a 200 ns instruction time at 20 MHz oscillator. The integrated 12-bit ADC is the highest-resolution converter in the PIC16C7x family, and the high pin count (44 pins) provides ample digital I/O for keypad scanning, LCD driving, and parallel bus expansion. OTP memory supports low-volume production runs and prototype builds where Flash reprogrammability is not required. Typical applications include industrial process control, data acquisition systems, instrumentation front-ends, HVAC controllers, and white-goods appliance control. The 12-bit ADC with 10 channels is particularly well suited to multi-sensor analog front ends such as weigh scales, temperature scanning, and battery monitoring. The USART and SSP peripherals simplify connection to RS-232/RS-485 networks and SPI/I2C peripherals. Designers should verify whether OTP is acceptable for the intended production volume - for high-volume runs, Flash-based PIC18F or PIC16F equivalents are usually more economical. The 44-MQFP footprint is legacy through-hole-replaceable; modern designs often migrate to 44-pin TQFP variants. Always place a 0.1 uF decoupling capacitor on VDD and use a 20 MHz crystal with appropriate load capacitors per datasheet guidance. This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design notes that supplement the manufacturer datasheet, helping engineers and buyers make an informed sourcing decision.

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PIC16C774-I/PT - 8-Bit OTP MCU 20MHz 12-bit ADC | Microchip
PIC16C774-I/PT

PIC16C774-I/PT - 8-Bit OTP MCU 20MHz 12-bit ADC | Microchip

The Microchip Technology PIC16C774-I/PT is an 8-bit CMOS OTP microcontroller from the PIC® 16C family, executing instructions at up to 20 MHz and integrating 7 KB (4K x 14) of one-time-programmable program memory, 256 bytes of RAM, and 10 channels of 12-bit Analog-to-Digital conversion in a 44-pin TQFP (10x10 mm) package. The integrated 12-bit ADC eliminates external signal-conditioning circuitry for high-precision analog measurement. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, and peripherals such as ADCs, timers, and communication ports. The PIC16C774 sits in the mid-range PIC16C family tree: PIC16C -> 8-bit PIC -> PIC microcontroller -> microcontroller -> embedded processor -> semiconductor. Its OTP memory allows low-cost, fast-turnaround prototyping and production for mature designs where code is stable. Key features include 10 channels of 12-bit ADC (vs. the typical 8-bit ADC in the family), 33 digital I/O pins arranged across five ports, an industrial -40C to +85C operating temperature range (signified by the "-I" suffix), two 8-bit timer/counters with one 16-bit timer/counter, a Watchdog Timer with its own on-chip RC oscillator, and brown-out reset circuitry. The OTP program memory supports in-circuit serial programming through the ICSP interface. The PIC16C774 uses Microchip's Harvard-architecture RISC core with a 14-bit instruction word optimized for compact code density. The 12-bit successive-approximation ADC delivers better than 1 LSB integral nonlinearity, suitable for instrumentation, motor control feedback, and sensor signal acquisition. The 5 V supply range (4.0 V to 5.5 V) and the 20 MHz clock budget provide deterministic real-time control in noisy industrial environments. Typical applications include industrial process control, multi-channel sensor data acquisition, HVAC actuator control, instrumentation front-ends, and embedded control for medical and test equipment. The 10-channel 12-bit ADC removes the need for an external ADC IC, reducing board area and BOM cost. When designing with this part, ensure the MCLR reset circuit follows Microchip application note TB008 with a proper pull-up; the ICSP interface shares pins with PORTC and PORTE, so isolate programming access during run-time. Decouple VDD/VSS pairs with 100 nF ceramic capacitors placed within 5 mm of each pin pair for ADC reference stability. This page synthesizes distributor pricing, drop-in TQFP-44 alternatives from the same Microchip PIC16C family, and practical design notes not consolidated in the manufacturer datasheet.

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PIC16C774/JW - 8-Bit 20MHz 7KB EPROM MCU, 12-bit ADC | Microchip
PIC16C774/JW

PIC16C774/JW - 8-Bit 20MHz 7KB EPROM MCU, 12-bit ADC | Microchip

The Microchip Technology PIC16C774/JW is an 8-bit RISC CMOS microcontroller based on Microchip's PIC16C architecture, offering 7KB (4K x 14) of one-time-programmable (OTP) EPROM program memory with UV-erasable windowed packaging, and operating at up to 20 MHz (200 ns instruction cycle). Housed in a 40-pin Windowed Ceramic DIP (CERDIP) through-hole package, the PIC16C774/JW provides 33 digital I/O pins, 256 bytes of RAM, and 10 channels of 12-bit Analog-to-Digital converter, making it suitable for high-precision analog measurement tasks. A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory, working RAM, and peripheral interfaces. The PIC16C774 belongs to Microchip's PIC16C mid-range family, which sits within the broader taxonomy of PIC microcontroller -> 8-bit MCU -> embedded controller -> semiconductor IC. The RISC architecture executes most instructions in a single cycle, and only 35 single-word instructions need to be learned, making it accessible for embedded developers transitioning from the PIC16C5X and PIC12CXXX device lines. Key features include 10 channels of 12-bit A/D conversion (enabling high-resolution measurement without external ADC circuitry), a wide operating voltage range typical of 5V PIC16C designs, an 8-bit timer/counter architecture, and synchronous/asynchronous serial communication peripherals. The windowed CERDIP package exposes the die to UV light for EPROM erasure, which makes the /JW variant uniquely valuable for engineering development, prototyping, and pre-production firmware iteration, as the same chip can be erased and re-programmed dozens of times. Technically, the PIC16C774 is built on a CMOS process that delivers low power consumption while maintaining 20 MHz throughput. The 12-bit ADC core allows designers to discriminate small analog signal changes (down to a fraction of a millivolt at the relevant reference voltage), eliminating the need for external ADC chips and reducing BOM cost. The 35-instruction RISC instruction set keeps code density high, with most branch instructions completing in two cycles. Typical applications include industrial process control, instrumentation requiring precision analog front-ends, sensor signal conditioning, motor control closed-loop feedback, and any 5V embedded system that benefits from on-chip 12-bit ADC. Engineers commonly use the /JW (windowed) variant on engineering benches, then transition to the lower-cost OTP-only package for production runs. When designing with this part, engineers must remember that windowed CERDIP is through-hole and large (0.600 inch / 15.24 mm body) compared to modern surface-mount MCUs; plan PCB layout and tooling accordingly. The /JW variant is intended for development, not high-volume production due to its higher unit cost and EPROM erase complexity. This page synthesizes distributor pricing, lifecycle context (the PIC16C774 family is mature/legacy), drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC16C774/L - 8-Bit 20MHz 7KB OTP MCU 44-PLCC | Microchip
PIC16C774/L

PIC16C774/L - 8-Bit 20MHz 7KB OTP MCU 44-PLCC | Microchip

The Microchip Technology PIC16C774/L is an 8-bit CMOS PIC® 16C mid-range microcontroller running up to 20MHz, with 7KB (4K x 14) OTP program memory, 256 x 8 bytes of RAM, and 33 digital I/O pins. It is housed in a 44-pin PLCC package (16.59 mm x 16.59 mm, J-lead) and operates from 4V to 5.5V over the commercial temperature range (0C to +70C, suffix "/L"). A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (ROM/Flash/OTP), working RAM, peripherals, and I/O on one die. PIC® 16C is Microchip's classic mid-range 8-bit OTP (One-Time Programmable) family using a Harvard RISC architecture with a 14-bit instruction word. The PIC16C774 sits inside the broader product hierarchy: microcontroller -> 8-bit MCU -> PIC® 16C family -> PIC16C7x series, where it adds 12-bit A/D capability compared to the 8-bit ADC predecessors such as PIC16C73/74. Key features include 10 channels of 12-bit-resolution Analog-to-Digital conversion, two 8-bit and one 16-bit timer/counter blocks, a USART with synchronous and asynchronous modes, an MSSP module supporting SPI and I2C, and a brown-out reset plus watchdog timer for reliable operation. The 12-bit ADC distinguishes signals as small as 1 mV on a 5V full-scale input, eliminating external signal-conditioning circuitry in many precision measurement applications. The PIC16C774 uses Microchip's OTP one-time-programmable memory, meaning the program is written once at programming time and is non-erasable - a low-cost approach suited to mature, stable production designs where firmware revision churn is minimal. The 20MHz oscillator provides a 200 ns instruction cycle, sufficient for control loops and slow communication stacks. Typical applications include industrial process control, instrumentation, multi-channel data acquisition front-ends, automotive body electronics (non-safety), and embedded control for office and white-goods equipment. The 10-channel 12-bit ADC makes it particularly attractive for sensor-hub roles where multiple analog transducers must be sampled simultaneously. When designing with this device, note that OTP memory cannot be re-programmed in-circuit; a flash-based PIC16F or PIC18F equivalent should be considered for prototyping or firmware-frequent designs. The 44-PLCC package requires a through-hole socket or a PLCC-44 SMT footprint, and the J-leads need careful pad geometry to avoid solder-bridging during reflow.

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PIC16C774/P - 8-Bit MCU, 12-bit ADC, 20MHz, CERDIP-18 | Microchip
PIC16C774/P

PIC16C774/P - 8-Bit MCU, 12-bit ADC, 20MHz, CERDIP-18 | Microchip

The Microchip Technology PIC16C774/P is an 8-bit CMOS microcontroller with a 20 MHz clock speed, 7 KB (4K x 14) OTP program memory, and 256 bytes of RAM, housed in a 40-pin CERDIP (windowed) through-hole package. It integrates 10 channels of 12-bit Analog-to-Digital conversion (A/D), eliminating the need for external ADC circuitry in precision measurement designs. The /P suffix denotes the CERDIP package with a UV-erasable quartz window, allowing repeated reprogramming during prototyping and development. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (ROM/Flash/OTP), data memory (RAM), and programmable peripheral interfaces. Microcontrollers fall into the broader category of microprocessors and embedded processors, which in turn belong to the Integrated Circuits > Microcontrollers family. The 8-bit PIC architecture uses a RISC-based Harvard design with only 35 single-word instructions, executing most instructions in 200 ns at 20 MHz, making it well-suited for deterministic real-time control. Key features include 10 channels of 12-bit A/D conversion (4096 discrete steps), 16 digital I/O ports organized across multiple ports, 256-byte RAM, 7 KB program memory, and three timers (Timer0, Timer1, Timer2). The instruction set is highly orthogonal and the architecture supports interrupts, watchdog timer, and an in-circuit debugger interface. The CERDIP windowed package enables erasure via UV exposure, ideal for development and code revision workflows. The PIC16C774 belongs to the PICmicro mid-range MCU family and is code- and pin-compatible with other 40-pin members of the PIC16C7xx family. It is well-suited for embedded control applications where integrating high-resolution analog measurement reduces BOM cost and PCB area. The PIC16C7xx series is supported by Microchip's MPLAB IDE and the PICmicro Mid-Range Reference Manual (DS33023), making firmware development straightforward for engineers familiar with the toolchain. Typical applications include industrial process control, sensor signal acquisition, instrumentation, motor control, and battery-powered measurement systems. The 12-bit ADC allows the part to detect small analog changes without external signal conditioning, while the 16 I/O pins support keypad scan, LED drive, and parallel communication. The /P CERDIP variant is most commonly used in development, prototyping, and legacy through-hole designs. When designing with this MCU, ensure the supply voltage stays within 4.0 V to 5.5 V and provide adequate decoupling on VDD/AVDD pins. The windowed CERDIP package is NOT recommended for high-volume production - use the -I/P (PDIP-40) or surface-mount variants for production runs. Brown-out reset configuration bits must be set appropriately for the application's power-supply ramp characteristics. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not aggregated on the manufacturer datasheet alone. Engineers evaluating EOL risk should review the lifecycle status and consider the PIC16F877A-I/P as a flash-memory migration path with a compatible 40-pin PDIP footprint.

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PIC16C774T-E/L - 8-Bit 20MHz OTP MCU, 7KB EPROM | Microchip
PIC16C774T-E/L

PIC16C774T-E/L - 8-Bit 20MHz OTP MCU, 7KB EPROM | Microchip

The Microchip PIC16C774T-E/L is an 8-bit CMOS RISC microcontroller with 7KB (4K x 14) One-Time-Programmable (OTP) program memory and 256 bytes of data RAM, packaged in a 44-pin PLCC (J-Lead) and supplied on Tape & Reel. Operating from a 5V rail with a 20MHz external oscillator, it executes instructions in 200ns and exposes 33 digital I/O pins for peripheral expansion. The PIC16C774T-E/L belongs to Microchip's mid-range PIC16C family and offers a 14-bit instruction word, 8-level hardware stack, and a broad set of on-chip peripherals including multiple timers, a synchronous/asynchronous serial port (USART/SCI), a 12-bit ADC input option via the family, and capture/compare/PWM modules suitable for embedded control loops. The 'E' suffix denotes the Extended industrial temperature grade (-40C to +125C) and the 'T' indicates Tape & Reel packaging, while '/L' specifies the 44-pin PLCC lead form. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, volatile RAM, and I/O peripherals. PIC microcontrollers use a Harvard architecture with separate program and data buses, and the mid-range PIC16 family employs a 14-bit instruction set known for code density and deterministic timing. Within the power management and embedded hierarchy, MCUs sit above logic ICs and below SoCs; they are the workhorses of appliance control, automotive subsystems, and industrial instrumentation. Key features of this part include 7KB EPROM (4K x 14), 256 bytes of RAM, 33 I/O lines, a 20MHz maximum clock, and four 8-bit timer/counters plus one 16-bit timer/counter. A 10-bit multi-channel Analog-to-Digital Converter, USART, and PSP (Parallel Slave Port) are integrated, and the device supports both internal and external oscillator modes. The 44-pin PLCC gives ample analog and digital pin assignments for mixed-signal designs. The architecture is a RISC design with only 35 single-word instructions, all single-cycle except program branches (two cycles). The Harvard bus allows simultaneous instruction fetch and data access, and the 8-level deep hardware stack supports nested subroutine calls typical of interrupt-driven firmware. The brown-out reset and power-on reset blocks protect volatile RAM and start firmware from a known state. Typical applications include industrial automation controllers, HVAC control boards, automotive body electronics (when derated within the temperature grade), instrumentation front-ends, motor control driver boards, sensor signal conditioning, and consumer appliance control panels. The 20MHz clock and 7KB code space are well suited to control loops that combine analog sensing with PWM actuation and serial communication to a host MCU or HMI. When designing with PIC16C774T-E/L, ensure decoupling capacitors (100nF and 10uF) are placed within a few millimeters of VDD/VSS pins, follow PLCC socket or solder-pad layout guidelines, and configure the MCLR pin with the proper pull-up. The OTP memory cannot be re-programmed in-circuit, so code should be fully verified before final write. This page synthesizes distributor pricing, drop-in PLCC-44 alternatives from Microchip's PIC16C77x family, and practical design notes not found in the manufacturer datasheet alone.

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PIC16C774T-E/PQ - 8-Bit 20MHz 7KB OTP MCU | Microchip
PIC16C774T-E/PQ

PIC16C774T-E/PQ - 8-Bit 20MHz 7KB OTP MCU | Microchip

The Microchip Technology PIC16C774T-E/PQ is an 8-bit CMOS OTP-based microcontroller from the PIC16C family, delivering 7KB (4K x 14) of one-time programmable program memory and operating at 20MHz (200ns instruction cycle). It is housed in a 44-pin MQFP (10x10 mm) package designated by the suffix PQ and is part of Microchip's classic mid-range PIC microcontroller lineup. A microcontroller (MCU) is a single-chip computer containing a CPU, program memory, data RAM, peripherals, and I/O. The PIC® 8-bit architecture belongs to the broader category of microcontrollers, which fall within embedded processors, microprocessors, and ultimately semiconductors. PIC microcontrollers are widely used for their deterministic instruction execution, simple instruction set, and robust peripheral integration, making them a foundational building block in embedded systems design. Key features of the PIC16C774T-E/PQ include 256 bytes of data RAM, 192 bytes of EEPROM data memory, eight 8-bit I/O ports with 33 digital I/O lines, a 12-bit ADC with up to 8 channels, two capture/compare/PWM modules, a USART, and a synchronous serial port. The device operates from 2.5V to 5.5V and supports the industrial -40C to +125C temperature range, indicated by the "E" (Extended) and "T" (Tape and Reel) suffixes. Its 35 single-word instruction RISC architecture simplifies firmware development and reduces code size. From an architecture perspective, the PIC16C774T-E/PQ uses a Harvard architecture with separate program and data buses, enabling simultaneous instruction fetch and data access. The OTP program memory is programmed once and is suitable for low-volume production or mature designs; for high-volume production Microchip typically recommends the pin-compatible PIC16F877 FLASH-based equivalent. The 12-bit ADC with 8 channels, combined with two PWM modules and a USART, makes it suitable for mixed-signal embedded control applications. Typical applications include industrial control systems, automotive body electronics, sensor signal conditioning, motor control, instrumentation, and consumer appliances. The extended temperature grade (E suffix) supports deployment in harsh industrial and automotive environments. When designing with this OTP part, ensure the final firmware is fully validated before programming, as OTP memory cannot be erased or rewritten. Engineers commonly prototype with the windowed PIC16C774/JW or the FLASH-based PIC16F877 before committing to OTP production programming. Decoupling capacitors should be placed close to VDD/VSS pins, and unused inputs must be tied to defined logic levels to minimize current consumption. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC16C774T-I/PQ - 8-Bit OTP MCU, 7KB, 12-bit ADC | Microchip
PIC16C774T-I/PQ

PIC16C774T-I/PQ - 8-Bit OTP MCU, 7KB, 12-bit ADC | Microchip

The Microchip Technology PIC16C774T-I/PQ is an 8-bit CMOS OTP (One-Time Programmable) microcontroller built on Microchip's PIC® 16C architecture, delivering 200 ns instruction execution through a 35-instruction RISC-like instruction set in a 44-pin MQFP (10x10 mm) surface-mount package. It integrates 7 KB of program memory (4K x 14-bit words), operates at up to 20 MHz, and supplies 10 channels of 12-bit Analog-to-Digital conversion for high-resolution mixed-signal designs. A microcontroller (MCU) is a single-chip computer that combines a CPU, program memory, data RAM, and peripherals such as ADCs, timers, and communication interfaces. The PIC16C774 belongs to the broader 8-bit MCU class — a category that prioritizes deterministic instruction timing, low power, and simple toolchain development over raw compute throughput. Within Microchip's taxonomy, the PIC16C774 sits in the PIC16 mid-range family, between the baseline PIC10/12/16 devices and the high-performance PIC18 family, and is upward code-compatible with the PIC16C5X and PIC12CXXX series, easing legacy firmware migration. Key features of the PIC16C774T-I/PQ include 192 bytes of data RAM, 256 bytes of EEPROM data memory, three timers, a synchronous serial port (SSP) supporting SPI and I²C, a USART, capture/compare/PWM modules, a brown-out reset, and a watchdog timer. The 12-bit ADC with 10 input channels provides 4096 discrete conversion steps — a notable step up from the 8-bit ADC found on most contemporary mid-range PICs. Industrial temperature grade (-40 °C to +85 °C) and a wide 4.0 V to 5.5 V supply range support harsh-environment deployments. Architecturally, the PIC16C774 uses a Harvard memory layout with separate program and data buses, allowing instruction fetch and operand read to occur in the same cycle. The OTP program memory is programmed once via Microchip's ICSP (In-Circuit Serial Programming) interface and is suitable for production volumes where firmware is finalized at manufacturing time. Power-down Sleep mode, watchdog-driven Sleep wake-up, and a low-power RC oscillator reduce quiescent consumption for battery-influenced designs. Typical applications for the PIC16C774T-I/PQ include industrial control and instrumentation, multi-channel data acquisition front-ends, motor and valve control loops, sensor signal conditioning, and embedded automotive subsystems where deterministic interrupt response and a 12-bit ADC simplify closed-loop firmware. The wide temperature range and robust peripheral set also make it a fit for HVAC controls, security panels, and laboratory instruments. When designing with the PIC16C774, ensure decoupling on VDD with at least a 100 nF ceramic placed within a few millimeters of the supply pins, plus a bulk tantalum or aluminum electrolytic capacitor. Configure the MCLR pin with the recommended 10 kΩ pull-up and place the oscillator traces short and guarded; the ADC accuracy depends on a clean VREF and a quiet analog supply plane. Verify ICSP pins (RB6/RB7) remain accessible for factory programming. This page combines distributor pricing, drop-in same-package alternatives, and practical design notes not consolidated in the Microchip datasheet, helping procurement and firmware engineers compare the PIC16C774T-I/PQ against pin-compatible PIC16C77 and PIC16C74A family members in the same 44-MQFP footprint.

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PIC16C774T/L - 8-Bit 20MHz OTP MCU 7KB 44-PLCC | Microchip
PIC16C774T/L

PIC16C774T/L - 8-Bit 20MHz OTP MCU 7KB 44-PLCC | Microchip

The Microchip Technology PIC16C774T/L is a CMOS OTP-based 8-bit PIC16C microcontroller delivering 20 MHz core clock speed and 7KB (4K x 14) of one-time-programmable program memory, housed in a 44-pin PLCC (16.59 x 16.59 mm) surface-mount package. It integrates 256 bytes of SRAM, 33 digital I/O lines, and a hardware peripheral set including I2C (SMBus-compatible), SPI, and UART/USART, plus an 8-channel 12-bit ADC, three timers, and a 200 ns instruction execution pipeline. A microcontroller (MCU) is a single-chip computer containing a CPU core, non-volatile program memory, working RAM, and configurable peripherals. PIC16C-series parts sit at the entry of the 8-bit PIC16 family hierarchy, sitting under PIC18 (16-bit opcodes, more peripherals) and above PIC12/PIC14 sub-families. The 16C line uses one-time-programmable EPROM (the 'C' suffix historically denoted CMOS EPROM), giving it permanent, in-circuit-routable code storage with no in-system reprogramming. Key features include 35 single-word instructions, an external oscillator interface, programmable code protection, a power-on reset (POR), brown-out reset (BOR), watchdog timer (WDT), in-circuit serial programming (ICSP) via two pins, and a wide 4.5V-5.5V supply range typical for legacy industrial embedded systems. The instruction set is upwards-compatible with PIC16C6x/7x/8x devices, allowing code reuse and easy migration to flash-based PIC16F relatives for modern designs. Technically, the PIC16C774T/L uses a 14-bit-wide instruction word with a RISC-style single-cycle fetch except for branches. Its 12-bit ADC with up to 8 channels suits sensor and instrumentation signal chains, while the three timers (Timer0/1/2) handle event counting, PWM, or real-time interrupts. The 'T' suffix designates Tape & Reel packaging and the 'L' suffix indicates the 44-lead PLCC J-lead package. Typical applications include industrial control panels, sensor signal conditioning front-ends, legacy instrumentation with RS-232/RS-485 links, building automation controllers, and printed-circuit-board test fixtures. It also fits brown-field replacements in long-life equipment where original OTP firmware must continue to run. When designing with this part, note that OTP memory cannot be re-flashed; budget a flash-based PIC16F774 or PIC18F equivalent for field updates. Use proper decoupling (100 nF + 10 uF) near VDD/AVDD/VSS pins, and verify ADC reference stability with a 10 uF cap on VREF+. This page synthesizes distributor pricing, drop-in Microchip alternatives, and PCB-layout notes not found in the original manufacturer datasheet DS30275A, giving engineers a single reference for sourcing decisions.

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PIC16C774T/PQ - 8-Bit OTP MCU, 20MHz, 7KB, 12-bit ADC | Microchip
PIC16C774T/PQ

PIC16C774T/PQ - 8-Bit OTP MCU, 20MHz, 7KB, 12-bit ADC | Microchip

The Microchip Technology PIC16C774T/PQ is a CMOS OTP-based 8-bit PIC microcontroller featuring 7KB (4K x 14) of One-Time Programmable program memory, 256 bytes of data RAM, and a 20MHz maximum clock speed delivering 200ns instruction execution. Housed in a 44-pin MQFP (PQ) package with 33 general-purpose I/O lines, the device integrates a 10-channel 12-bit Analog-to-Digital converter, three timer modules, and a 14-source interrupt controller, all powered from a 2.5V to 5.5V supply. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (ROM/Flash/OTP), data RAM, I/O peripherals, and timers into one package. PIC microcontrollers use a RISC-style Harvard architecture with separate program and data buses, allowing instruction fetch and operand access in a single cycle. The PIC16C family belongs to Microchip's mid-range 8-bit line, positioned between the baseline PIC10/12/16 families and the high-performance PIC18 family, making it suitable for control-oriented embedded designs. Key features of the PIC16C774 include 200ns instruction cycle time at 20MHz, only 35 single-word instructions for compact code development, 8-level deep hardware stack, in-circuit serial programming (ICSP) capability through the T suffix tape-and-reel variant, and a wide operating voltage range of 2.5V to 5.5V. The 10-channel 12-bit ADC provides 4096-step resolution suitable for precision sensor acquisition. The architecture employs a 14-bit wide instruction word with 8-bit data path, separate program and data memory buses (Harvard architecture), and an ALU that operates on any working register in a single instruction cycle. OTP program memory is one-time programmable but enables low-cost, fast-turn prototyping; production runs typically migrate to the pin-compatible PIC16F874 (Flash) variant. Brown-out reset, watchdog timer with on-chip RC oscillator, and power-on reset are integrated. Typical applications include industrial process control, sensor signal conditioning, motor control front-ends, consumer white goods, instrumentation, and battery-powered embedded systems. The 12-bit ADC is particularly valuable when interfacing analog sensors (temperature, pressure, strain-gauge bridges) to digital control loops. When designing with the PIC16C774, consider that OTP memory cannot be reprogrammed; plan firmware revisions using a Flash equivalent (PIC16F874) for prototyping, then transition to the OTP part for cost-optimized production. The 44-pin MQFP package requires careful PCB layout because the 0.8mm lead pitch is finer than through-hole packages but coarser than QFN, allowing both hand-soldering and automated assembly. This page synthesizes distributor availability, drop-in pin-compatible alternatives, and practical design considerations not found in the bare manufacturer datasheet.

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PIC16C774T/PT - 8-Bit 20MHz OTP MCU 7KB Flash | Microchip
PIC16C774T/PT

PIC16C774T/PT - 8-Bit 20MHz OTP MCU 7KB Flash | Microchip

The Microchip Technology PIC16C774T/PT is an 8-bit CMOS OTP-based PIC microcontroller built around Microchip's PIC16C architecture, operating at up to 20MHz (200 ns instruction cycle) with 7KB (4K x 14) of one-time-programmable program memory and 256 bytes of RAM, housed in a 44-pin TQFP (10x10 mm) package. The "T" suffix denotes Tape & Reel packaging for high-volume SMT assembly, and the "/PT" suffix indicates the 44-pin TQFP outline. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, and a rich set of peripheral interfaces (ADC, timers, communications, GPIO) onto one silicon die. The PIC16C family sits in Microchip's mid-range 8-bit hierarchy: PIC10/12/14/16 base architecture -> PIC16 mid-range -> PIC16C77x 44-pin OTP line -> PIC16C774T/PT. This position gives it the upgrade path and toolchain familiarity of the broader PIC ecosystem while remaining simple to program. Key features include 33 digital I/O pins, an integrated 12-bit ADC with up to 8 channels, three timers (Timer0, Timer1, Timer2), a Capture/Compare/PWM (CCP) module, and hardware communication peripherals: I2C/SPI (Synchronous Serial Port, SSP) and an enhanced USART. With only 35 single-word instructions the device is approachable for new firmware developers and is binary-compatible with the PIC16C5X and PIC12CXXX families for code reuse. Architecturally, PIC16C774T/PT uses a Harvard RISC core with separate program and data buses, allowing most instructions to execute in one instruction cycle. The OTP program memory is factory-one-time-programmable, which suits low-cost production runs but precludes field firmware updates; for that, designers typically migrate to the flash-based PIC16F77x family. Typical applications include industrial control panels, sensor signal conditioning, motor control, instrumentation, and embedded control nodes that need ADC and serial communication on a 5V platform. The wide -40C to +85C industrial temperature range and 33 I/O capacity also fit automotive body and appliance subsystems. A key design consideration is OTP memory: once programmed, the device cannot be re-flashed, so firmware must be fully validated on windowed (JW) or flash equivalents before committing. Designers also commonly pair this MCU with a flash-based PIC16F877A in the same 44-pin TQFP as a re-programmable development surrogate. This page synthesizes distributor pricing, drop-in same-package alternatives (PIC16C774T-I/PT, PIC16C774-I/PT), and practical design notes not collated on the manufacturer product page, giving engineers a faster path to a working BOM.

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PIC16C77T-04/L - 8-Bit 4MHz 14KB OTP MCU 44-PLCC | Microchip
PIC16C77T-04/L

PIC16C77T-04/L - 8-Bit 4MHz 14KB OTP MCU 44-PLCC | Microchip

The Microchip Technology PIC16C77T-04/L is an 8-bit CMOS microcontroller from the PIC16C7X mid-range family, featuring 14KB (8K x 14) of One-Time-Programmable (OTP) program memory, 368 bytes of RAM, and an 8-channel 8-bit Analog-to-Digital Converter (ADC), all integrated in a 44-pin PLCC package (16.59 x 16.59 mm). An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (ROM/RAM), peripherals, and I/O on a single die. The PIC mid-range family occupies the middle of Microchip's 8-bit portfolio, providing a balance of performance, peripheral integration, and code efficiency for embedded control applications. PIC16C7X parts specifically add on-chip ADC capability, making them suitable for mixed-signal embedded designs where analog sensing is required alongside digital control. Key features of the PIC16C77T-04/L include a 4 MHz maximum operating clock (the "-04" suffix indicates a 4 MHz part; the PIC16C77 family also includes 10 MHz and 20 MHz variants), 33 digital I/O lines organized across multiple ports, a USART for serial communication, capture/compare/PWM modules, and an 8-channel 8-bit ADC. The OTP program memory allows one-time field programming via standard device programmers, which is typical for low-to-medium volume production. The supply voltage range is 4V to 5.5V per the datasheet. The architecture is fully static CMOS, allowing the clock to be stopped without loss of internal state - useful for low-power sleep modes. The mid-range core uses a 14-bit instruction word, providing compact code density compared to 8-bit CISC architectures. The integrated ADC supports successive-approximation conversion with selectable reference sources and acquisition timing. Typical applications include industrial automation (sensor interfacing, motor speed control via PWM, PLC I/O expansion), consumer electronics (appliance controllers, simple user-interface handling), automotive subsystems (interior lighting, HVAC blowers, instrument cluster logic), and embedded instrumentation (data loggers, multi-channel measurement front-ends). The combination of ADC, PWM, USART, and abundant I/O on a single die replaces what would otherwise require several discrete components. When designing with this part, note that OTP memory means firmware cannot be updated in-circuit for errata fixes; consider Flash-based PIC16F77 for development or production requiring field updates. Decouple VDD with 100 nF + 10 uF placed within 5 mm of the supply pins, and configure the MCLR pin with a proper reset network (typically 10 kohm pull-up to VDD with a diode to VDD to protect against over-voltage during in-circuit programming). This page synthesizes distributor pricing, verified drop-in alternatives from the PIC16C7X family, and practical design notes not found in the standalone manufacturer datasheet.

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PIC16C77T-04/PQ - 8-Bit 4MHz 14KB OTP MCU 44-MQFP | Microchip
PIC16C77T-04/PQ

PIC16C77T-04/PQ - 8-Bit 4MHz 14KB OTP MCU 44-MQFP | Microchip

The Microchip Technology PIC16C77T-04/PQ is an 8-bit CMOS microcontroller from the PIC16CXX mid-range family, delivering 4 MHz CPU performance with 14 KB (8K x 14) of One-Time-Programmable (OTP) program memory in a 44-pin MQFP (10x10) tape-and-reel package. According to the verified distributor data, the device integrates 368 bytes of RAM, 22 digital I/O lines, a 12-channel 8-bit A/D converter, and hardware peripherals including I2C (SSP), SPI, and USART communication interfaces for embedded control. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, and peripheral interfaces such as timers, ADC, and communication buses. Within the broader taxonomy, the PIC16C77 belongs to the mid-range 8-bit microcontroller category (8-bit MCU -> microcontroller -> embedded processor -> semiconductor IC). The PIC16CXX mid-range architecture uses a 14-bit instruction word set optimized for deterministic, single-cycle execution on most instructions, supporting fully-static operation that allows the clock to be stopped without losing state. Key features of the PIC16C77T-04/PQ include a 4 MHz maximum operating frequency, 8-bit data path, 14 KB OTP program memory, integrated 12-channel 8-bit A/D converter, two 8-bit timers and one 16-bit timer, capture/compare/PWM modules, a synchronous serial port supporting both SPI and I2C, an asynchronous USART, and a wide 4.0 V to 5.5 V supply voltage range. The /04 speed suffix indicates the 4 MHz maximum clock; the /PQ suffix designates the 44-pin Metric Quad Flat Pack (MQFP) surface-mount package supplied on tape and reel. The PIC16C77 architecture employs a Harvard-style design with separate program and data buses, allowing instruction fetch and data access to occur in the same cycle. The OTP memory supports one-time field programming via standard device programmers, while the 8-bit A/D converter provides fast analog signal acquisition for sensor and control applications. The integrated peripherals reduce external component count, making the part well suited for compact, cost-sensitive embedded designs. Typical applications for the PIC16C77T-04/PQ include industrial process control, instrumentation, motor control, sensor signal conditioning, HVAC controllers, security and alarm panels, automotive body electronics, and general-purpose embedded control where moderate analog input count and serial communication are required. The combination of OTP memory and a robust peripheral set makes the device an effective choice for production-volume designs. When designing with this part, ensure that the OTP programming step is finalized before final PCB assembly because OTP cannot be erased or rewritten. Add a 100 nF decoupling capacitor adjacent to each VDD/VSS pair, place a low-ESR bulk capacitor on the supply rail, and respect the in-circuit serial programming (ICSP) pin assignments if firmware is to be programmed after PCB assembly. This page consolidates distributor pricing, verified specifications, drop-in alternatives within the PIC16C7X family, and practical design notes that go beyond the manufacturer datasheet to accelerate component selection.

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PIC16C77T-04/PT - 8-Bit OTP MCU, 14KB, 4MHz, 44-TQFP | Microchip
PIC16C77T-04/PT

PIC16C77T-04/PT - 8-Bit OTP MCU, 14KB, 4MHz, 44-TQFP | Microchip

The Microchip Technology PIC16C77T-04/PT is an 8-bit RISC microcontroller from the PIC16C family, featuring 14KB (8K x 14) of One-Time Programmable (OTP) program memory and 368 bytes of RAM, operating at a clock speed of 4 MHz and housed in a 44-pin TQFP (10x10 mm) package. An OTP (One-Time Programmable) microcontroller is a variant of programmable logic in which the program memory can be written to exactly once after manufacture, using a special programming procedure. Unlike Flash-based MCUs that can be re-flashed thousands of times, OTP parts are intended for high-volume, cost-sensitive, or security-oriented applications where firmware is finalized during production and field re-programming is undesirable. Within the broader taxonomy, this part belongs to microcontroller -> 8-bit microcontroller -> PIC16 family -> PIC16C7x series -> CMOS EPROM-based MCU -> embedded processing IC. Key specifications include 33 digital I/O pins, a 14-bit instruction word, an 8-level hardware stack, on-chip peripherals (ADC, USART, CCP, timers), and wide operating voltage support typical of the PIC16C7x family. The -04 suffix denotes the 4 MHz maximum oscillator frequency grade, and the /PT suffix identifies the 44-pin TQFP surface-mount package. The 'T' in the MPN indicates Tape & Reel packaging. From an architectural standpoint, the PIC16C77T uses Microchip's enhanced mid-range Harvard architecture with separate program and data buses, enabling single-cycle instruction execution (excluding branches). The device integrates brown-out reset, power-on reset, watchdog timer with on-chip RC oscillator, and a 10-bit multi-channel ADC, which collectively reduce external component count in embedded designs. Typical applications include industrial control systems, automotive body and chassis electronics (legacy), appliance controllers, security panels, sensor signal conditioning front-ends, and any high-volume embedded design where a one-time programmable MCU provides a favorable BOM-to-function ratio. Designers often migrate new designs to the pin-compatible PIC16F877 (Flash) for prototyping and to PIC16C77 (OTP) for production to leverage lower unit cost. When using this part, note that OTP memory cannot be erased; firmware must be fully validated before programming. A socketed PIC16C77-04/P or PIC16F877-04/P can be used on the development bench and replaced by the production PIC16C77T-04/PT for the final assembly. This page synthesizes distributor stock levels, pricing tiers, drop-in same-package alternatives drawn from Microchip's PIC16C7x family, and engineering design notes not found in the manufacturer datasheet alone, giving procurement and design engineers a single decision-ready reference.

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PIC16C77T-04E/L - 8-bit 4MHz OTP MCU 14KB 44-PLCC | Microchip
PIC16C77T-04E/L

PIC16C77T-04E/L - 8-bit 4MHz OTP MCU 14KB 44-PLCC | Microchip

The Microchip Technology PIC16C77T-04E/L is an 8-bit CMOS OTP (One-Time Programmable) microcontroller from the PIC16C7X mid-range family, operating at 4 MHz core clock speed and packaged in a 44-pin PLCC (J-lead, 16.59x16.59 mm) windowed CERDIP-compatible footprint. It integrates 14 KB of program memory organized as 8K x 14-bit words, 368 bytes of data RAM, 33 I/O lines, and a multi-channel 8-bit Analog-to-Digital Converter, making it a self-contained embedded control solution for legacy industrial and automotive systems. An 8-bit OTP microcontroller is a single-chip computer that executes one instruction on 8-bit data words and stores its program in non-erasable (one-time programmable) ROM. Within the broader taxonomy, the PIC16C77 belongs to the 8-bit MCU -> microcontroller -> embedded controller -> semiconductor IC hierarchy. The 14-bit instruction word places it in Microchip's mid-range architecture family, between the baseline 12-bit core and the enhanced 16-bit core, balancing code density with peripheral integration. Key features of the PIC16C77T-04E/L include integrated 8-bit A/D converter (typically 8 channels), a USART for serial communication, three timer/counter modules, a watchdog timer with on-chip RC oscillator, power-on reset, brown-out detection, and an operating voltage range of 4.0 V to 5.5 V. The wide 16 I/O ports (Vyrian listing) and 33 total I/O lines (per datasheet) allow direct connection to keypads, displays, sensors, and motor drivers without external glue logic. Architecturally, the PIC16C77T-04E/L uses a Harvard RISC core with separate program and data buses, allowing instruction fetch and data access to occur in a single cycle. The 4 MHz oscillator yields a 1 microsecond instruction cycle, sufficient for real-time control loops in motor drives, instrumentation, and automotive body controllers. Code protection fuses prevent unauthorized memory read-out, critical for OEM intellectual-property security. Typical applications include industrial automation controllers, automotive body and climate modules, instrumentation front-ends, security and access control panels, and embedded control subsystems where a proven mid-range 8-bit core and through-hole-compatible PLCC footprint are preferred over modern QFN surface-mount devices. When designing with this part, place a 0.1 microfarad decoupling capacitor close to VDD and use a 4 MHz crystal with two 22 pF load capacitors. The OTP memory means firmware must be fully validated before programming; consider a Flash-based PIC16F877A for prototypes and a windowed CERDIP variant for development with UV erasure. This page synthesizes verified distributor inventory, current pricing tiers, drop-in Microchip PIC16C7X family alternatives, and practical design notes not collected on a single OEM datasheet page.

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PIC16C77T-04E/PQ - 14KB EPROM 8-Bit MCU, 20MHz, 44-MQFP | Microchip
PIC16C77T-04E/PQ

PIC16C77T-04E/PQ - 14KB EPROM 8-Bit MCU, 20MHz, 44-MQFP | Microchip

The Microchip Technology PIC16C77T-04E/PQ is a member of the PIC16C7X mid-range family of 8-bit CMOS microcontrollers, featuring 14KB of one-time-programmable (OTP) EPROM program memory, 368 bytes of RAM, and 33 digital I/O lines. The device is housed in a 44-pin Metric Quad Flat Pack (MQFP) surface-mount package and operates at a maximum clock speed of 20 MHz, delivering 5 MIPS of throughput from a 4:1 instruction cycle ratio. An 8-bit microcontroller (MCU) is a single-chip computer with an 8-bit data bus, integrated CPU, program memory, RAM, and peripheral set optimized for embedded control. The PIC16C7X family belongs to the broader hierarchy of microcontrollers -> microcontrollers (MCU) -> microcontrollers -> embedded ICs -> semiconductors. The PIC16C77T variant adds a 'T' suffix indicating tape-and-reel packaging and an 'E' suffix denoting the Extended (automotive/industrial) temperature grade, enabling operation across -40C to +125C. Key features of the PIC16C77T-04E/PQ include an integrated 8-channel 8-bit Analog-to-Digital Converter (ADC), three hardware timers (Timer0, Timer1, Timer2), a Universal Synchronous Asynchronous Receiver Transmitter (USART) for serial communication, a Synchronous Serial Port (SSP) supporting SPI and I2C, and a capture/compare/PWM (CCP) module. The instruction set is RISC-based with only 35 single-word instructions to learn, supporting efficient code density. Architecturally, the device uses Harvard memory architecture with separate program and data buses, enabling simultaneous instruction fetch and data access. Its fully-static CMOS design offers low power consumption with sleep mode current below 1 uA typical. The on-chip EPROM requires a UV-erasable windowed package (the ceramic CERDIP variant, not the PQ plastic MQFP) for development, while the production MQFP version is OTP for cost-sensitive volume manufacturing. Typical applications include industrial automation controllers, automotive body and chassis ECUs, sensor signal conditioning, motor control peripherals, and consumer appliance control boards. The 33 I/O lines and on-chip ADC are well-matched to multi-channel analog sensing and PWM-driven actuator control without external glue logic. Designers should note the 4V to 5.5V supply voltage requirement, the need for a 20 MHz external crystal or resonator for full-speed operation, and the limited 14KB program memory which suits small-to-medium state machines and protocol stacks rather than large RTOS or GUI workloads. Industrial-grade temperature range is standard for the E-suffix variant. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC16C77T-04E/PT - 8-Bit 4MHz OTP MCU, 14KB, 44-TQFP | Microchip
PIC16C77T-04E/PT

PIC16C77T-04E/PT - 8-Bit 4MHz OTP MCU, 14KB, 44-TQFP | Microchip

The Microchip Technology PIC16C77T-04E/PT is an 8-bit CMOS OTP microcontroller from the PIC16C7X mid-range family, delivering 14KB (8K x 14) of One-Time-Programmable program memory and 368 bytes of data RAM. It operates at a maximum clock frequency of 4MHz, integrates 33 digital I/O lines, and is housed in a 44-pin TQFP (10x10 mm) surface-mount package with industrial-grade -40C to +125C operating range. An 8-bit microcontroller (MCU) is a single-chip computer that uses an 8-bit data bus architecture, executes one instruction per cycle on a RISC-style core, and integrates CPU, memory, and peripherals on a single die. PIC16C7X parts belong to the mid-range PIC family — a hierarchy that traces from PIC microcontrollers -> mid-range 8-bit MCUs -> RISC microcontrollers -> embedded processors -> semiconductors. The 'C' suffix denotes the original CMOS OTP lineage, while the 'T-04' speed grade specifies a 4MHz oscillator maximum and 'E' marks the extended temperature variant. Key features of the PIC16C77T-04E/PT include on-chip peripherals such as a multi-channel 8-bit Analog-to-Digital Converter, two Capture/Compare/PWM modules, a USART serial port, an SSP/SPI/I2C peripheral, Brown-out Reset, Power-on Reset, Power Saving Sleep mode, a Watchdog Timer with its own on-chip RC oscillator, and programmable code protection. The PIC16C77 adds 33 I/O pins (vs 28 on the PIC16C74) and a higher pin count to support expanded parallel-port and analog-channel applications. Architecturally, the PIC16C77 uses a 14-bit instruction word, a 5-stage pipeline (fetch/decode/read/operate/write), and Harvard bus architecture with separate program and data memories. This RISC design delivers deterministic instruction timing — every instruction executes in one oscillator cycle except branches (two cycles) — simplifying real-time control loops in motor, power-conversion, and instrumentation designs. Typical applications for this part include industrial process control, motor drive signal conditioning, instrumentation front-ends with on-chip ADC, embedded control with serial networking (USART/SPI), and legacy factory automation upgrades where 5V-tolerant CMOS and 33 I/O are required. Designers also deploy it in test equipment, security panels, and HVAC controllers that need 8-bit deterministic control without an operating system. A critical design consideration is the OTP memory: code is programmed once and cannot be changed, so firmware must be fully validated before programming. Designers migrating to flash should evaluate the PIC16F877A (drop-in replacement family with flash), but for legacy 5V systems or harsh industrial environments the PIC16C77T-04E/PT remains a robust, time-tested choice. This page synthesizes distributor pricing, drop-in same-brand alternatives, and practical design notes not consolidated in the Microchip datasheet — including migration guidance from OTP to flash within the same 44-TQFP footprint and side-by-side comparison with the PIC16F877A for engineers modernizing 5V legacy designs.

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PIC16C77T-04I/L - 8-Bit 4MHz MCU, 14KB OTP, 44-PLCC | Microchip
PIC16C77T-04I/L

PIC16C77T-04I/L - 8-Bit 4MHz MCU, 14KB OTP, 44-PLCC | Microchip

The Microchip Technology PIC16C77T-04I/L is an 8-bit RISC microcontroller from the PIC16C7X mid-range family, delivering 4 MHz core clock performance with 14KB (8K x 14) of One-Time Programmable (OTP) program memory, packaged in a 44-pin PLCC (J-Lead) form factor measuring 16.59 x 16.59 mm. It integrates 368 bytes of data RAM, 33 general-purpose digital I/O pins, and a rich set of on-chip peripherals including UART/USART, SPI, and I2C communication interfaces. An 8-bit microcontroller (MCU) is a single-chip computer that executes instructions on 8-bit data words, typically used in embedded control applications requiring deterministic timing, low power consumption, and simple peripheral integration. Within the broader semiconductor taxonomy, MCUs sit under microcontrollers, then integrated circuits, then semiconductors. The PIC16C7X family specifically occupies the mid-range tier of Microchip's 8-bit portfolio, sitting between baseline (PIC10/12/16) and enhanced mid-range (PIC17) families, and is characterized by integrated analog-to-digital converters and on-chip EEPROM/OTP program memory. Key features of the PIC16C77T-04I/L include an industrial operating temperature range (-40C to +85C per the I suffix), 14KB of OTP program memory for one-time field programming, three serial communication peripherals (UART/USART, SPI, I2C) for multi-device bus interfacing, and a 44-pin PLCC package with J-leads for socketed or surface-mount production. The 'T' suffix indicates Tape & Reel packaging, and the '04' speed grade denotes a 4 MHz maximum oscillator frequency. The /L suffix denotes the PLCC package variant. Architecturally, the PIC16C77T-04I/L employs a Harvard RISC architecture with separate program and data buses, a 14-bit instruction word, and a single accumulator-based working register (W) architecture. This design delivers deterministic instruction timing - most instructions execute in one oscillator cycle - which simplifies real-time control loop design. The device operates from a 4.0V to 5.5V single supply, drawing low quiescent current suitable for industrial and consumer embedded products. Typical applications include industrial control and automation, sensor interfacing, motor control front-ends, building automation, white goods control boards, and legacy embedded products originally designed around the PIC16C7X family. The wide I/O count and triple serial interface make it suitable for hub-style designs that aggregate multiple sensor inputs and forward data to a host controller. When designing with this device, plan for OTP memory programming early in the production flow - unlike flash-based PIC16F variants, code cannot be erased or rewritten once programmed. Use the UART/USART, SPI, and I2C peripherals to offload communication tasks from software loops and reserve timer resources for PWM and capture/compare functions where deterministic timing matters most. This page synthesizes distributor pricing, drop-in alternative part numbers, and practical design considerations that are not found in the manufacturer datasheet alone, helping engineers and procurement specialists evaluate the PIC16C77T-04I/L for new designs or production replenishment.

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PIC16C77T-04I/PQ - 8-bit PIC MCU, 14KB EPROM, 4MHz | Microchip
PIC16C77T-04I/PQ

PIC16C77T-04I/PQ - 8-bit PIC MCU, 14KB EPROM, 4MHz | Microchip

The Microchip Technology PIC16C77T-04I/PQ is an 8-bit CMOS RISC microcontroller with 14KB EPROM program memory, 5V operating voltage, and a maximum clock speed of 4 MHz, housed in a 44-pin MQFP (PQ) package supplied on tape and reel. According to the Microchip PIC16C7X family datasheet, this device integrates a high-performance RISC CPU, 33 digital I/O pins, multiple timers, an analog-to-digital (A/D) converter, and synchronous/asynchronous serial ports (USART/SSP) for embedded control applications. An 8-bit PIC (Peripheral Interface Controller) microcontroller is a Harvard-architecture RISC processor that executes one instruction per clock cycle (except branches), offering deterministic timing and a compact instruction set well-suited to real-time control. PIC MCUs sit within the broader hierarchy of embedded microcontrollers -> microcontrollers -> microprocessors -> semiconductors. The PIC16C7X family is the mid-range PIC16CXX line, balancing cost, peripheral integration, and ease of development for industrial, consumer, and instrumentation designs. Key features of the PIC16C77T-04I/PQ include the 14KB one-time-programmable (OTP) EPROM for program storage, 33 I/O lines, an 8-channel 8-bit A/D converter, two 8-bit timers plus one 16-bit timer, a USART for serial communication, a Synchronous Serial Port (SSP) for SPI/I2C, and an industrial operating temperature range of -40C to +85C. The 4 MHz oscillator speed (suffix 04) provides sufficient throughput for control loops, sensor sampling, and human-machine interface tasks. Typical applications include industrial automation controllers, sensor signal conditioners, motor control peripherals, instrumentation front-ends, and embedded communication bridges. The integrated A/D converter and USART make it well-suited for data acquisition boards and remote telemetry. When designing with the PIC16C77T-04I/PQ, consider that OTP EPROM cannot be erased and reprogrammed - choose this variant for volume production where firmware is finalized, or use a windowed (JW) variant for prototype development. The MQFP-44 footprint also requires careful PCB thermal relief and ground plane design for noise immunity in mixed-signal systems. This page consolidates distributor pricing, drop-in same-package alternatives (PIC16C77-04I/PQ, PIC16C77-10I/PQ, PIC16C74BT-04I/PQ), parametric comparison data, and practical design guidance that goes beyond a single datasheet page, helping procurement and design engineers evaluate the PIC16C77T-04I/PQ for new designs and legacy replacements.

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PIC16C77T-04I/PT - 8-bit OTP MCU, 14KB, 4MHz, TQFP-44 | Microchip
PIC16C77T-04I/PT

PIC16C77T-04I/PT - 8-bit OTP MCU, 14KB, 4MHz, TQFP-44 | Microchip

The Microchip Technology PIC16C77T-04I/PT is a member of the PIC16C7X mid-range family of CMOS, fully-static, 8-bit microcontrollers featuring 14KB (8K x 14) of One-Time Programmable (OTP) program memory, 368 bytes of RAM, 33 digital I/O lines, and a 4 MHz instruction-cycle core, packaged in a 44-pin TQFP (10x10 mm) surface-mount housing supplied on Tape & Reel. A PIC microcontroller (Peripheral Interface Controller) is a RISC-based embedded computing device integrating a CPU core, non-volatile program memory, RAM, peripheral set (timers, ADC, communication ports), and I/O into a single IC. Within the Microchip taxonomy, PIC MCUs are organized into families (PIC10/12/14/16/18/24/32) by core width, instruction set and peripheral count; the PIC16C series sits in the legacy OTP/EPROM mid-range tier that pre-dates the flash-based PIC16F generation. The PIC16C77 is the 14KB-memory member of the PIC16C7X line with on-board 8-bit ADC. Key features of the PIC16C77T-04I/PT include a Harvard RISC architecture with 14-bit instructions, hardware multiplier-free ALU executing most instructions in a single 4 MHz cycle, an integrated 8-channel/10-bit (or 12-bit on the 16C77) analog-to-digital converter, two capture/compare/PWM modules, a USART, an SSP/SPI/I2C port, a watchdog timer, brown-out reset, and power-on reset, plus five 8/16-bit timers for total peripheral flexibility. The architecture relies on EPROM-based code storage which makes the part suited to mature production runs where reprogramming is not expected; the wide 4.0 V to 6.0 V supply range and -40 °C to +85 °C industrial operating band suit factory-floor controllers. Compared with the flash-based PIC16F877 equivalent, the PIC16C77 offers OTP code protection but requires UV-erase windows or windowless-OTP programming strategies in production. Typical applications include industrial automation (sensor conditioning + ADC), consumer appliance controllers, automotive body and chassis subsystems, embedded control with analog front ends, and legacy designs requiring EPROM code security. Industrial designers choose it where deterministic single-cycle execution, mature toolchain support (MPLAB + Hi-Tech C), and EPROM code protection outweigh the lack of in-circuit reprogramming. A core design consideration is OTP code security versus the higher cost-per-bit of EPROM versus flash: design firmware must be fully validated before burn, and an emergency code-change strategy requires replacement stock. Layout tip: keep analog and digital ground returns separated under the 44-TQFP, place the AVdd/Vdd decoupling pair within 5 mm of the pins, and respect the ADC acquisition-time (Tacq) formula to avoid sampling-channel errors. This page consolidates distributor pricing, drop-in compatible same-package alternatives and practical design notes not found in the manufacturer datasheet, giving procurement and engineering a single decision-ready reference.

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PIC16C77T-10/L - 8-Bit 10MHz OTP MCU 14KB Flash | Microchip
PIC16C77T-10/L

PIC16C77T-10/L - 8-Bit 10MHz OTP MCU 14KB Flash | Microchip

The Microchip Technology PIC16C77T-10/L is an 8-bit RISC microcontroller from the PIC® 16C family, operating at up to 10 MHz with 14 KB (8K × 14) of One-Time Programmable (OTP) program memory and 368 bytes of data RAM. Housed in a 44-pin PLCC (Plastic Leaded Chip Carrier) package measuring 16.59 × 16.59 mm with J-lead terminals, the device integrates an 8-channel 8-bit A/D converter, three timers, a USART, and 33 digital I/O lines for embedded control. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and programmable I/O peripherals on a single silicon die. The PIC16C7x family uses a Harvard RISC architecture with separate program and data buses, enabling single-cycle instruction execution except for program branches. The OTP variant is programmed once at production using a device programmer and is intended for low-volume or mature designs where code stability is established. Key features include 14 KB OTP program memory, 368 bytes of RAM, 256 bytes of EEPROM data storage, an internal 8-bit A/D converter with 8 input channels, a synchronous/asynchronous serial port (USART/SCI), and 33 digital I/O pins arranged across multiple ports. The instruction set contains 35 single-word instructions, allowing compact code generation in C or assembly. The commercial temperature grade (0 °C to +70 °C) targets consumer and industrial instrumentation. The PIC16C77 architecture is built around a 14-bit instruction word, an 8-bit data path, and a multi-source interrupt controller with 14 interrupt sources. The ADC operates from the device's VDD supply and supports successive-approximation conversion with user-selectable conversion clock. The on-chip USART supports both asynchronous (SCI) and synchronous modes for connection to RS-232 transceivers, SPI peripherals, or LIN bus controllers. Typical applications include industrial process control, motor control front-ends, security and access control panels, HVAC thermostats, smart sensor signal conditioning, and automotive body electronics pre-CAN. The 33 I/O pins and 8-channel ADC suit systems where multiple analog sensors and discrete digital actuators must be serviced from a single 5 V supply. Design considerations include OTP programming via the ICSP interface (RB6/RB7), the need for a regulated 5 V supply, and a recommended 100 nF decoupling capacitor near each power pin pair. Because OTP parts cannot be reprogrammed in-circuit, designers should reserve a few unused I/O pins for debugging straps and consider a socket during prototyping. This page synthesizes distributor stock visibility, drop-in 44-PLCC alternatives from the same PIC16C7x family, and practical design notes that go beyond the manufacturer datasheet summary.

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PIC16C77T-10/PQ - 8-bit CMOS MCU, 14KB OTP, 44-MQFP | Microchip
PIC16C77T-10/PQ

PIC16C77T-10/PQ - 8-bit CMOS MCU, 14KB OTP, 44-MQFP | Microchip

The Microchip Technology PIC16C77T-10/PQ is an 8-bit CMOS OTP-based RISC microcontroller with 14KB of program memory and 368 bytes of RAM, housed in a 44-pin Metric Quad Flat Pack (MQFP) package. It executes instructions in a 200 ns cycle (10 MHz oscillator / 4), integrates an 8-channel 8-bit A/D converter, two 8-bit timers and one 16-bit timer with capture/compare/PWM, and exposes 33 digital I/O pins. The device is supplied on tape-and-reel in the /PQ package and targets embedded control applications requiring integrated analog. An 8-bit OTP microcontroller (one-time-programmable microcontroller) is a single-chip computer that stores program code in non-volatile memory that can be written once by the user and read many times thereafter, replacing masked-ROM parts with field-programmable flexibility. The PIC16C77 sits in Microchip's PIC16CXX mid-range family hierarchy (microcontroller -> 8-bit MCU -> mid-range MCU -> PIC16C7x family), which sits beneath the broader PIC16C family and above baseline PIC12/PIC16 parts. Its RISC Harvard architecture separates program and data buses, enabling single-cycle instruction fetch and deterministic timing. Key features include 14KB OTP program memory, 368 bytes RAM, 33 I/O lines rated for direct LED drive, an 8-channel 8-bit A/D converter with selectable reference, two 8-bit timers plus one 16-bit timer/counter with capture/compare/PWM, a synchronous serial port (SSP) supporting SPI and I2C, and a USART with addressable transmit/receive. Brown-out reset, watchdog timer with on-chip RC oscillator, and code-protection fuse bits round out the on-chip peripherals. The PIC16C77T-10/PQ is part of the PIC16C7X family built on Microchip's CMOS process, sharing peripherals and pinout with PIC16C73/74/76/77 variants. Power consumption is in the milliampere range at 10 MHz, and the device supports operation from 3.0 V to 6.0 V. Industrial and extended temperature grades are available, and Microchip recommends the flash-based PIC16F77 as a newer alternative. Typical applications include industrial process control, instrumentation, motor control, sensor signal conditioning, and consumer appliance control. In a process-control loop the on-chip A/D and PWM peripherals remove the need for external converters, while the synchronous serial port glues directly to SPI/I2C sensors. When designing with this part, note that the OTP memory cannot be re-programmed in-circuit, so choose a flash-based PIC16F77 for development. Decouple VDD/VSS with 0.1 uF ceramic caps placed within 5 mm of the pins, and use the MCLR pull-up to prevent spurious resets during power-up. This page synthesizes current distributor inventory, drop-in same-package alternatives and practical PCB design notes not collected in any single source.

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PIC16C77T-10/PT - 14KB OTP 8-Bit MCU, 10MHz, 44-TQFP | Microchip
PIC16C77T-10/PT

PIC16C77T-10/PT - 14KB OTP 8-Bit MCU, 10MHz, 44-TQFP | Microchip

The Microchip Technology PIC16C77T-10/PT is an 8-bit OTP (One-Time Programmable) microcontroller from the PIC® 16C family, featuring 14KB (8K x 14) of program memory, 368 bytes of RAM, and 33 digital I/O pins, housed in a 44-pin TQFP (PT) package rated for 10MHz operation. The "T" suffix indicates Tape and Reel packaging, while "-10" specifies the 10MHz maximum clock speed, and "/PT" denotes the 44-pin TQFP (10x10 mm) surface-mount package. An OTP microcontroller is a class of programmable logic device whose program memory can be written only once, using either a parallel or serial programmer, after which the code becomes permanent. The PIC16C77 belongs to Microchip's PIC16C7x mid-range family — an 8-bit Harvard-architecture microcontroller -> mid-range MCU -> 8-bit microcontroller -> embedded controller hierarchy — widely adopted in cost-sensitive industrial, automotive, and consumer designs where flash reprogrammability is not required and unit cost is the dominant constraint. Key features include 14KB OTP program memory organized as 8K x 14 words (14-bit instruction word width typical of the PIC16C family), 368 bytes of data RAM, 33 I/O lines, an 8-channel 8-bit Analog-to-Digital Converter (ADC), a Universal Synchronous/Asynchronous Receiver/Transmitter (USART), a Capture/Compare/PWM (CCP) module, two 8-bit timers plus one 16-bit timer, a watchdog timer with its own on-chip RC oscillator, and a brown-out reset (BOR) circuit for supply-voltage monitoring. Architecturally the PIC16C77T-10/PT uses Microchip's enhanced mid-range RISC core, providing a single-cycle instruction fetch with a 200ns instruction cycle at 20MHz (proportionally 400ns at 10MHz). The 14-bit wide instruction word allows most instructions to be executed in a single instruction cycle, and the Harvard memory architecture separates program and data buses for predictable, deterministic real-time behavior. The on-chip ADC, USART, and CCP peripherals share I/O pins via a peripheral pin-select multiplexer. Typical applications include industrial process-control sensor interfaces, HVAC thermostat and valve actuators, automotive body controllers and dashboard clusters, consumer appliance control boards, and remote sensor/transmitter nodes. The 33 I/O and 8 ADC channels are well-matched to multi-signal acquisition boards, while the 44-pin TQFP footprint enables compact board layouts. The wide 2.5V–6.0V operating range supports both 3.3V and 5V designs. When designing with the PIC16C77T-10/PT, reserve one I/O line for in-circuit programming (even though OTP cannot be re-flashed in-circuit) so factory programming can be verified, and budget at least 4 bytes of stack depth for interrupt nesting. Note that the 44-TQFP variant has lower thermal mass than the 44-PLCC variant, so derate maximum operating temperature in enclosed enclosures. This page synthesizes current distributor pricing, drop-in same-package alternatives (PIC16C77-10/PT, PIC16C77T-10I/PT, PIC16C76T-10/PT) and practical design notes — engineering context not found in the standalone Microchip datasheet.

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