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PIC16C77-10/PT - 8-bit OTP MCU, 14KB EPROM, 33 I/O | Microchip
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 - 8-Bit OTP MCU 14KB Flash 44-PLCC | Microchip
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 - 8-Bit 10MHz OTP MCU 14KB Flash 44-TQFP | Microchip
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 - 8-Bit 10MHz OTP MCU 14KB | Microchip
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 - 8-Bit MCU, 14KB OTP, 10MHz, 44-MQFP
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 - 8-bit OTP MCU, 14KB, 33 I/O, 44-TQFP | Microchip
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 - 8-Bit 20MHz 14KB OTP MCU 44-PLCC | Microchip
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 - 8-bit 20MHz OTP MCU 14KB | Microchip
PIC16C77-20/P

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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