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PIC17C756AT-33/PT - 8-bit 33MHz OTP MCU, 32KB | Microchip
PIC17C756AT-33/PT

PIC17C756AT-33/PT - 8-bit 33MHz OTP MCU, 32KB | Microchip

The Microchip PIC17C756AT-33/PT is a high-performance 8-bit CMOS EPROM/OTP microcontroller running at 33 MHz clock input with a 121 ns instruction cycle, packaged in a 64-pin TQFP (10x10 mm). It integrates 32 KB (16K x 16) of OTP program memory and 902 bytes of RAM in the PIC17C family architecture, delivering approximately 8.25 MIPS throughput with only 58 single-word instructions to learn. Per the Microchip product page, the device ships in tape-and-reel packaging (the "T" suffix) and supports 50 digital I/O pins, a 10-bit A/D converter, PWM, and on-chip peripherals. A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory, RAM, and peripheral interfaces. The PIC17C series sits above the PIC16C family in Microchip's 8-bit hierarchy, offering higher instruction throughput (8.25 MIPS at 33 MHz), a wider 16-bit program memory data bus, and extended peripherals while maintaining upward compatibility with PIC16C5X, PIC12CXXX, and PIC16CXX code. OTP (One-Time Programmable) EPROM technology is suited for volume production where the firmware is finalized but does not need field re-programmability. Key features include the 33 MHz clock input, single-cycle hardware multiplier, 121 ns instruction execution (excluding branches and table reads/writes which take two cycles), Brown-out Detect/Reset, Power-on Reset, Watchdog Timer, PWM, plus serial interfaces (I2C, SPI, USART) and a 10-bit ADC. According to the verified Microchip product page, the part operates from a single 4.5 V to 5.5 V supply and provides 50 general-purpose I/O pins. The PIC17C756A architecture uses a RISC-style Harvard CPU with a 16-bit program memory bus and 8-bit data path, an 8-level hardware stack, and interrupt logic supporting 12 sources. The wide external memory bus and 10-bit ADC make it suitable for mixed-signal embedded control. Typical applications include industrial motor control, building automation, instrumentation front-ends, and embedded control requiring moderate code density with 32 KB of OTP and 50 I/O lines. It is also used in legacy designs where Microchip recommends migrating to PIC18F6520 for new designs. When designing with this device, ensure the 4.5-5.5 V supply is well-decoupled and that oscillator layout guidelines are followed because the 33 MHz clock leaves little timing margin. Microchip recommends PIC18F6520 as a modern, flash-based successor. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that consolidate information not found in the manufacturer datasheet alone.

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PIC17C756AT-33E/L - 8-Bit 33MHz OTP MCU 32KB | 68-PLCC
PIC17C756AT-33E/L

PIC17C756AT-33E/L - 8-Bit 33MHz OTP MCU 32KB | 68-PLCC

The Microchip PIC17C756AT-33E/L is a high-performance 8-bit RISC microcontroller from the legacy PIC17C family, delivering 8.25 MIPS at 33 MHz with 121 ns single-cycle instruction execution. It integrates 32 KB of One-Time-Programmable (OTP) program memory (organized as 16K x 16) and 902 bytes of RAM, all housed in a 68-pin PLCC (24.23 x 24.23 mm) J-leaded surface-mount package. The 'T' suffix indicates tape-and-reel packaging, '33' denotes 33 MHz maximum clock, and the 'E' temperature grade supports the extended -40 °C to +125 °C automotive/industrial range. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (ROM/Flash/OTP), data memory (RAM), and programmable I/O peripherals. The 8-bit PIC17C architecture sits at the top of Microchip's original 8-bit hierarchy (PIC16 -> PIC17 -> PIC18), offering expanded peripherals, linear memory addressing, and faster execution than the popular PIC16 family, while predating the flash-based PIC18F successors. Key features include 50 digital I/O pins, an internal 8-bit data bus with 16-bit instruction path, 8 MIPS sustained throughput, an analog comparator module, capture/compare/PWM, USART, and an 8-channel 10-bit ADC. The OTP program memory allows factory or volume one-time programming for production runs, making this part well suited for mature industrial designs. Only 58 single-word instructions need to be learned, simplifying firmware development. Typical applications include industrial automation controllers, automotive body and chassis electronics, consumer appliances with keypad/display interfaces, and embedded control of legacy PIC-based systems. The wide 4.5 V to 5.5 V supply range and 50 I/O channels make it suitable for motor control front-ends, sensor aggregation nodes, and human-machine interface (HMI) boards. Its 33 MHz throughput comfortably handles real-time control loops, UART bridging, and PWM-driven actuators. When designing with this part, ensure the OTP programming step is factored into production logistics and that adequate decoupling (100 nF + 10 µF) is placed close to VDD pins. Designers migrating to a flash-based equivalent should evaluate Microchip's recommended successor (PIC18F6520) since PIC17C parts are not recommended for new designs.

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PIC17C756AT-33E/PT - 8-Bit 33MHz OTP MCU 32KB | Microchip
PIC17C756AT-33E/PT

PIC17C756AT-33E/PT - 8-Bit 33MHz OTP MCU 32KB | Microchip

The Microchip Technology PIC17C756AT-33E/PT is a high-performance 8-bit CMOS microcontroller from the PIC17C family, featuring a 33 MHz core speed and 32 KB (16K x 16) of one-time programmable (OTP) program memory. It is housed in a 64-pin TQFP (10x10 mm) surface-mount package and integrates 902 bytes of RAM with a rich peripheral set including 12 channels of 10-bit Analog-to-Digital converters, UART/USART, SPI, and I2C interfaces. The device executes instructions in a single cycle of 121 ns, delivering up to 8.25 MIPS throughput from its 58-instruction RISC core. An OTP-based microcontroller (One-Time Programmable) is a class of non-volatile memory MCU that is programmed once at production or during firmware development and cannot be electrically erased afterward. OTP MCUs sit in the hierarchy between mask-ROM MCUs (lowest cost, longest lead) and flash-based MCUs (re-programmable, highest flexibility), making them well suited for high-volume, cost-sensitive, code-stable products where firmware revisions are infrequent. The PIC17C family represents Microchip's high-end 8-bit architecture, designed for applications requiring more computational throughput than the PIC16 family while preserving the PIC instruction-set simplicity. Key features of the PIC17C756AT-33E/PT include 50 I/O lines, brown-out detect/reset for power-supply supervision, and a 4.5 V to 5.5 V supply range. The wide external memory interface supports both program and data expansion beyond the internal 32 KB OTP, while the 17-bit instruction word with separate 16-bit data path (x16 architecture) accelerates table reads and arithmetic operations. The 'AT' suffix indicates tape-and-reel packaging, 'E' denotes the extended temperature grade (-40 C to +125 C), and '33' specifies the 33 MHz maximum clock. The PIC17C756AT-33E/PT is now listed as a legacy / not-recommended for new designs product on Microchip's website, with the PIC18F6520 cited as the modern migration path. Existing designs continue to be supported for production, but new projects should evaluate the flash-based PIC18F alternative unless the OTP cost structure is critical. The 64-TQFP footprint is shared with several PIC18F devices, easing future migration. Typical applications include industrial control panels, motor-control front-ends, instrument front panels, automotive body controllers, and embedded data-acquisition systems requiring moderate computational throughput with multiple communication interfaces. Compared with PIC16 family parts, the 17C family offers roughly 2x the instruction throughput and substantially more RAM and I/O. When designing with this device, allocate careful PCB layout for the 64-TQFP ground paddle for thermal dissipation, and reserve an external crystal or oscillator footprint for the 33 MHz clock. Brown-out reset must be configured in firmware to ensure deterministic startup across the full 4.5-5.5 V supply range. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, with cross-references to verified Microchip migration paths.

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PIC17C756AT-33I/L - 33MHz 8-Bit OTP MCU, 32KB, 50 I/O | Microchip
PIC17C756AT-33I/L

PIC17C756AT-33I/L - 33MHz 8-Bit OTP MCU, 32KB, 50 I/O | Microchip

The Microchip Technology PIC17C756AT-33I/L is a high-performance 8-bit CMOS OTP EPROM microcontroller in the PIC17C family, delivering up to 8.25 MIPS at a 33 MHz external clock with a 121 ns single-cycle instruction execution time. It integrates 32KB (16K x 16) of one-time-programmable program memory and 902 bytes of RAM, providing the throughput and code density required for embedded control applications that historically demanded external logic or larger 16-bit parts. A microcontroller (MCU) is an integrated circuit that combines a CPU core, non-volatile program memory, working RAM, and a set of on-chip peripherals behind a unified instruction set, allowing a single chip to replace dozens of discrete logic devices. The PIC17C family sits between Microchip's baseline PIC16C5X/PIC16CXX devices and the later PIC18F parts, adding a 16-bit-wide instruction word (which yields 32KB of code space from a single OTP array) while keeping an 8-bit data path and only 58 single-word instructions to learn. This positioning explains why PIC17C756A-series parts are still specified in long-lifecycle industrial designs even after the family was officially replaced by the PIC18F6520. Key features of the PIC17C756AT-33I/L include 50 programmable digital I/O lines, 12 channels of 10-bit Analog-to-Digital conversion, a single-cycle 8-bit hardware multiplier, dual hardware PWM/Capture/Compare modules, an asynchronous serial port (USART), a synchronous serial port (SSP) for SPI/I2C, and a wide 4.5V to 5.5V supply range suited to industrial 5V rails. The /L suffix denotes the 68-pin PLCC (Plastic Leaded Chip Carrier, J-leaded, 24.23 x 24.23 mm) surface-mount package, and the /I industrial temperature grade spans -40C to +85C. Architecturally, the PIC17C756A uses a RISC-style Harvard bus with separate program and data paths, an internal instruction pipeline, and an 8-level deep hardware stack, which together enable deterministic 121 ns instruction cycles except for two-cycle program branches and table reads/writes. The on-chip peripherals are mapped into the SFR space, and the 10-bit ADC includes dedicated sample-and-hold and programmable acquisition timing. Typical applications include industrial automation controllers, motor control front-ends, instrumentation front panels, automotive body electronics (where the part was historically qualified in non-AEC-Q100 designs), HVAC control boards, and legacy embedded products that were designed around the PIC17C family before migrating to PIC18F. The combination of 50 I/O, 12 ADC channels, and a 5V-tolerant architecture makes it a frequent choice for sensor aggregation nodes. When designing with this part, allow at least a 2-layer board with a solid ground pour under the PLCC footprint and place a 0.1 uF decoupling capacitor on every VDD/VSS pair. Because the device is OTP rather than flash, the firmware must be fully validated before programming - in-circuit reprogramming is not possible. This page synthesizes current distributor stock, parametric cross-references, and application guidance for engineers who still need to source or design around the PIC17C756A family.

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PIC17C756AT-33I/PT - 33MHz 8-bit OTP MCU 32KB TQFP-64 | Microchip
PIC17C756AT-33I/PT

PIC17C756AT-33I/PT - 33MHz 8-bit OTP MCU 32KB TQFP-64 | Microchip

The Microchip Technology PIC17C756AT-33I/PT is a high-performance 8-bit CMOS OTP (one-time-programmable) microcontroller from the PIC17C family, housed in a 64-pin TQFP (10x10 mm) package and rated for the industrial -40C to +85C temperature range. The device integrates a 33 MHz core with a 121 ns single-cycle instruction execution, delivering up to 8.25 MIPS throughput, alongside 32 KB (16K x 16) of program memory and 902 bytes of general-purpose RAM. It exposes 50 digital I/O pins and supports multiple serial peripherals including I2C, SPI, and UART/USART, plus a 10-bit A/D converter, PWM, watchdog timer, brown-out detect, and power-on reset. A PIC microcontroller is a Harvard-architecture RISC processor family that separates program and data memory spaces to enable single-cycle instruction fetch and deterministic execution. The PIC17C family sits at the top of Microchip's classic 8-bit portfolio: in the system hierarchy it is classified as a microcontroller (MCU) -> embedded controller -> 8-bit RISC processor -> semiconductor IC. Unlike PIC16C/PIC12C parts, the PIC17C line provides a 16-bit instruction word, hardware multiply, and an extended peripheral set aimed at more demanding embedded designs while remaining source-compatible with smaller PIC parts. Key differentiating specifications include the 33 MHz maximum clock input (giving 121 ns instruction cycle for branches and 121 ns for normal single-cycle instructions), hardware single-cycle multiplier, 10-bit ADC, and 50 I/O - significantly more than legacy PIC16F parts. The part runs from a 4.5 V to 5.5 V single supply and is offered in a plastic TQFP-64 (10x10 mm) footprint for surface-mount production. Typical applications include industrial control front-ends, motor drive signal conditioning, sensor aggregation nodes, and legacy embedded products where the PIC17C toolchain and code base are already deployed. The device is suited to designs that need more RAM and I/O than PIC16F or PIC18F parts can supply, while keeping the established 5 V PIC ecosystem. Designers should note that PIC17C is OTP-only; for in-field reprogrammability the recommended migration path is the Flash-based PIC18F6520. Per Microchip, the PIC17C756A is being replaced by PIC18F6520 in new designs.

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PIC17C762-16/L - 8-Bit 16MHz 16KB OTP MCU 84-PLCC | Microchip
PIC17C762-16/L

PIC17C762-16/L - 8-Bit 16MHz 16KB OTP MCU 84-PLCC | Microchip

The Microchip Technology PIC17C762-16/L is a high-performance 8-bit CMOS EPROM microcontroller in the PIC17C family, integrating 16KB (8K x 16) of One-Time-Programmable (OTP) program memory and running at 16MHz external clock (33 MHz internal / 8.25 MIPS instruction throughput). It is offered in a 84-pin PLCC (Plastic Leaded Chip Carrier) J-lead package with body dimensions of 29.31 x 29.31 mm, designated by the /L package suffix. A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory (ROM/Flash/OTP), data memory (RAM), and integrated peripherals such as timers, ADC, communication ports, and I/O. The PIC17C family sits at the upper end of Microchip's classic 8-bit PIC architecture hierarchy (PIC10/12/16/17/18), targeting high-throughput embedded control with Harvard-bus throughput and RISC instruction set efficiency. The PIC17C762 specifically extends the family with a wider 16-bit instruction word and 8-bit data path, balancing code density with 8-bit peripheral simplicity. Key features of the PIC17C762-16/L include 16KB of OTP program memory (8K words x 16 bits), a 10-bit analog-to-digital converter, and a 50-pin I/O structure on the 84-PLCC footprint. The device executes most instructions in a single 121 ns cycle (8.25 MIPS at 33 MHz oscillator) and supports only 58 single-word instructions, easing code development. It operates from a 4.5V to 5.5V supply, includes a hardware multiplier, multiple timer/counter modules, and supports both parallel and serial communication peripherals typical of mid-1990s industrial controllers. Architecturally, the PIC17C762 uses an enhanced Harvard architecture with a 16-bit program memory bus and 8-bit data memory bus, allowing single-cycle instruction fetch plus data access. The OTP cell technology permits factory or prototype programming but does not support in-circuit re-programming - this is a key distinction versus modern Flash-based PIC18 successors. The integrated 10-bit ADC, multiple capture/compare/PWM modules, and dual USART ports make it suitable for closed-loop motor control, instrumentation, and process automation where deterministic interrupt latency matters. Typical applications include industrial process control, motor drive control loops, HVAC equipment, security panel controllers, and legacy instrumentation interfaces. The wide I/O count and PLCC footprint suit backplane-style designs and through-hole manufacturing lines that pre-date surface-mount-only conversion. When designing with the PIC17C762-16/L, verify oscillator configuration (HS vs EC mode) against your crystal selection and confirm that your toolchain targets the PIC17C core - the PIC17C instruction set is a superset of the PIC16C but with different SFR mapping. Note that Microchip officially recommends the PIC18F8520 as a newer replacement, so consider migration paths for new designs. This page consolidates distributor pricing, drop-in alternative MPNs, and practical design considerations - information not assembled in any single manufacturer document.

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PIC17C762-16/PT - 8-bit OTP MCU, 16KB EPROM, 66 I/O TQFP-80 | Microchip
PIC17C762-16/PT

PIC17C762-16/PT - 8-bit OTP MCU, 16KB EPROM, 66 I/O TQFP-80 | Microchip

The Microchip Technology PIC17C762-16/PT is a high-performance 8-bit CMOS EPROM-based microcontroller in a 80-pin TQFP (PT) surface-mount package, delivering 8.25 MIPS at a 33 MHz oscillator input (121 ns instruction cycle) and 16 KB of on-chip OTP program memory. It integrates 678 bytes of general-purpose RAM, 66 digital I/O lines, a 10-bit analog-to-digital converter, an 8-bit single-cycle hardware multiplier, and the PIC17C family peripheral set including multiple timers, USART, and capture/compare/PWM modules. An OTP microcontroller (One-Time-Programmable microcontroller) is a non-volatile program-memory MCU whose EPROM cells can be written exactly once during production programming, then retain their bit pattern for the lifetime of the part. OTP sits in the microcontroller taxonomy between mask-ROM MCUs (cheapest, programmed at the fab) and flash MCUs (rewritable for field upgrades); OTP MCUs are favored for high-volume mature products where firmware is stable and production tooling costs favor factory programming. Within Microchip's lineup, PIC17C762 belongs to the PIC17C family of 8-bit RISC microcontrollers, which in turn sits above PIC16C and below PIC18 in performance and peripheral count. Key features of the PIC17C762-16/PT include its high-performance Harvard RISC architecture with only 58 single-word instructions, single-cycle instruction execution (except program branches and table reads/writes which are two-cycle), a wide 4.5 V to 5.5 V supply range, an external clock input up to 33 MHz, and built-in brown-out / power-on reset and watchdog timer. The internal 10-bit A/D converter supports multiple channels for mixed-signal embedded designs. Industrial-grade operation is supported through the -40C to +85C commercial/industrial range (per the PT suffix family). The 80-pin TQFP package exposes 66 I/O pins, leaving 14 pins for power, ground, oscillator, MCLR, and programming functions. Architecturally, the PIC17C762 separates program memory (16 KB OTP EPROM) from data memory (678 bytes RAM + 16-level hardware stack), allowing the 16-bit instruction word to coexist with an 8-bit data path. The single-cycle hardware multiplier accelerates arithmetic operations common in motor control and instrumentation, while the peripheral set supports both event-driven (timer/capture) and communications (USART) workloads. Typical applications include industrial control panels, motor drive controllers, instrumentation front-ends, sensor conditioning with on-chip A/D, low-cost data acquisition terminals, and any high-volume embedded design that benefits from one-time factory programming of stable firmware. Compared with newer flash-based PIC18F8520, the PIC17C762-16/PT targets production runs where firmware stability eliminates the need for field re-programmability. When designing with this part, note that OTP memory cannot be erased or rewritten; firmware bugs are unrecoverable in the field. Ensure a stable, well-regulated 5 V supply and follow Microchip's PIC17C programming specifications for in-circuit or socket programming using the ICSP interface. A newer recommended device per Microchip is the PIC18F8520, which adds flash memory and improved peripherals while remaining software-compatible at the architectural level.

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PIC17C762-16E/L - 16MHz 8-bit OTP MCU, 16KB, 84-PLCC | Microchip
PIC17C762-16E/L

PIC17C762-16E/L - 16MHz 8-bit OTP MCU, 16KB, 84-PLCC | Microchip

The Microchip Technology PIC17C762-16E/L is a high-performance 8-bit CMOS OTP microcontroller in the legacy PIC17C family, delivering 16 MIPS throughput (121 ns instruction execution) at 16 MHz, packaged in an 84-pin PLCC (J-Lead) form factor. According to the Microchip product page, the part integrates 16 KB (8K x 16) of One-Time-Programmable program memory, 678 bytes of general-purpose RAM, and a rich set of peripherals: 16-channel 10-bit ADC, PWM modules, USART/UART, SPI, and I2C, with 50 digital I/O lines. What is an OTP microcontroller? An OTP (One-Time-Programmable) microcontroller is a class of MCU whose internal program memory can be written exactly once after manufacture, typically using a programmer, and cannot subsequently be erased or rewritten. This places OTP MCUs in the broader hierarchy: microcontroller -> embedded processor -> semiconductor IC -> CMOS logic. PIC17C762-16E/L belongs to the legacy PIC17C family, which Microchip itself now flags as obsolete and recommends migrating to the modern PIC18F8520 (per the official Microchip product page notice). Key features include a RISC architecture with only 58 single-word instructions to learn, single-cycle execution on all instructions except program branches and table reads/writes (which take two cycles / 242 ns), wide operating voltage (4.5 V to 5.5 V), industrial/automotive-grade temperature option, plus brown-out detect, power-on reset, and watchdog timer for robust embedded designs. Architecturally, the PIC17C762 uses a 16-bit instruction word with an 8-bit data path and a 16-level deep hardware stack. The Harvard-style memory map separates program (16 KB OTP) from data (678 bytes SRAM + 64 bytes EEPROM-equivalent registers), enabling deterministic single-cycle instruction fetch. Typical applications span industrial control panels, motor drive front-ends (using PWM + ADC for closed-loop sensing), automotive body and chassis ECUs, HVAC controllers, and legacy embedded systems still in production or long-life service. For new designs Microchip explicitly recommends the PIC18F8520 or dsPIC33 families. Design consideration: PIC17C762-16E/L is OTP, so firmware revisions require a new physical part. Plan for a flash-based equivalent (PIC18F8520) during board bring-up to allow code iteration. Operating at 16 MHz requires a stable 4.5 V - 5.5 V rail; add decoupling (100 nF + 10 uF) close to VDD/VSS pins. This page synthesizes distributor stock levels, OTP/Flash migration guidance, and practical design notes not found in the manufacturer datasheet alone, giving engineers and procurement teams a single decision-ready reference.

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PIC17C762-16E/PT - 8-Bit 16MHz 16KB OTP MCU 80-TQFP | Microchip
PIC17C762-16E/PT

PIC17C762-16E/PT - 8-Bit 16MHz 16KB OTP MCU 80-TQFP | Microchip

The Microchip Technology PIC17C762-16E/PT is a high-performance 8-bit CMOS microcontroller from the PIC17C family, offering 16MHz maximum operating frequency, 16KB (8K x 16) of One-Time-Programmable (OTP) program memory and 678 bytes of general-purpose RAM, all housed in an 80-pin TQFP (12x12 mm) surface-mount package. It delivers 8.25 MIPS throughput (121 ns single-cycle instruction execution) across 58 single-word instructions, while program branches and table reads/writes take two cycles. An 8-bit microcontroller (MCU) is a small computer-on-a-chip integrating an 8-bit CPU core, program memory, data RAM, and peripheral subsystems on a single silicon die. It belongs to the broader hierarchy of microcontrollers -> embedded processors -> integrated circuits -> semiconductors, and is the workhorse of industrial control, automotive body electronics, and consumer appliances where deterministic real-time response and cost efficiency matter more than raw compute. Key features of the PIC17C762-16E/PT include 66 digital I/O pins, integrated Brown-out Detect/Reset, Power-On Reset (POR), Pulse-Width Modulation (PWM) outputs, and a Watchdog Timer (WDT). The wide 66-I/O count makes it well-suited to driving multiple sensors, keypads and actuators in a single chip without external expanders. The OTP program memory offers one-time field programmability, suiting mature production runs where code is fixed. Architecturally, the PIC17C762 uses Microchip's enhanced Harvard architecture with separate program and data buses, allowing instruction fetch and operand access in the same cycle. The 16-bit wide program word (8K x 16 = 16KB) gives each instruction more headroom than 14-bit PIC16 cores, while the RISC instruction set simplifies compiler code generation. Supply voltage is 4.5V to 5.5V and the -E suffix denotes the extended industrial temperature grade of -40C to +125C. Typical applications include industrial automation controllers, automotive body and chassis subsystems, HVAC control, uninterruptible power supply (UPS) front panels, and consumer appliances with rich I/O. Microchip's own product page recommends considering the PIC18F8520 as a newer flash-based alternative for new designs, but the PIC17C762 family remains supported for legacy systems. Designers should note that this part is OTP, not flash-based, so firmware must be fully verified before programming. The 80-pin TQFP footprint requires careful PCB layout with adequate thermal relief and four-layer routing for the high pin count. Review Microchip's PIC17C76x Family datasheet for oscillator, A/D and USART configurations before committing to the design. This page synthesises distributor stock levels, drop-in alternatives and practical design notes that go beyond the manufacturer datasheet, giving engineers a single page to evaluate sourcing, replacement and qualification decisions.

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PIC17C762-16I/PT - 16KB EPROM 8-bit MCU, 66 I/O, TQFP-80 | Microchip
PIC17C762-16I/PT

PIC17C762-16I/PT - 16KB EPROM 8-bit MCU, 66 I/O, TQFP-80 | Microchip

The Microchip PIC17C762-16I/PT is a high-performance 8-bit CMOS EPROM/OTP microcontroller delivering 8.25 MIPS (121 ns instruction cycle) with 16 KB of on-chip program memory and 678 bytes of RAM, housed in an 80-pin TQFP (PT) package. It integrates a 10-bit A/D converter, runs from a 4.5 V to 5.5 V supply, and offers 50 to 66 digital I/O lines depending on peripheral multiplex configuration. The 16 MHz maximum oscillator input (PIC17C762 family spec) supports a 121 ns single-cycle instruction execution for all but program branches and table reads/writes, which take two cycles. An 8-bit microcontroller (MCU) is a small, self-contained computing element that integrates a CPU, non-volatile program memory, working RAM, and peripheral blocks on a single die. Within that hierarchy, an OTP/EPROM MCU stores its firmware in one-time-programmable or erasable-programmable read-only memory, making it a fit for low-volume production, prototyping, and field-upgradable legacy designs. The PIC17C family sits at the high end of Microchip's original 8-bit lineup, delivering more MIPS, more pins, and more memory than the baseline PIC16 family while preserving the easy-to-learn 16-bit instruction word RISC architecture. Key features of the PIC17C762-16I/PT include a hardware 8-bit x 8-bit single-cycle multiplier, an integrated 10-bit A/D converter with multiple input channels, multiple timer/counter modules, a USART, and capture/compare/PWM peripherals. The wide operating voltage (4.5 V to 5.5 V) and industrial temperature range (-40C to +85C, indicated by the "I" suffix) make it suitable for factory-floor and commercial embedded equipment. Its 80-pin TQFP footprint exposes nearly every pin as a general-purpose I/O, enabling direct bus-style interfacing to LCDs, keypads, and external memory. Typical applications include industrial control boards, instrumentation front-ends, motor-control subsystems, and legacy embedded products that were designed against the original PIC17C family. Designers migrating a PIC17C762 board to a newer architecture can use the PIC18F8520 as a drop-in software-compatible successor per Microchip's own product page recommendation. The 10-bit A/D and large I/O count also make it relevant for sensor-hub and human-machine-interface designs. When designing with this device, allocate adequate decoupling (typically 0.1 uF ceramic per VDD/VSS pair) and follow Microchip's PIC17C family errata for the OTP programming algorithm. Note that the PIC17C762 has been superseded by the PIC18F8520 for new designs; verify long-term supply before committing to new production.

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PIC17C762-33/L - 8-Bit 33MHz OTP MCU 16KB 84-PLCC | Microchip
PIC17C762-33/L

PIC17C762-33/L - 8-Bit 33MHz OTP MCU 16KB 84-PLCC | Microchip

The Microchip Technology PIC17C762-33/L is an 8-bit high-performance CMOS OTP microcontroller belonging to the PIC17C family, operating at a 33 MHz clock input with a 121 ns instruction cycle (approximately 8.25 MIPS). It integrates 16 KB of OTP program memory (organized as 8K x 16), 678 bytes of data RAM, a 10-bit analog-to-digital converter, and 66 I/O pins, all housed in an 84-pin PLCC (Plastic Leaded Chip Carrier) package measuring 29.31 x 29.31 mm. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, data RAM, and a rich set of peripherals (timers, ADC, communication ports, GPIO) onto one silicon die. The PIC17C family was Microchip's first high-end 8-bit architecture, positioned above the PIC16C midrange family by offering wider 16-bit instruction words, an expanded register set, an external memory interface, and higher pin counts for embedded applications requiring more I/O than midrange MCUs could deliver. OTP (One-Time Programmable) variants such as the PIC17C762 are intended for low-to-medium volume production where masked-ROM economics are not justified. The PIC17C762-33/L offers 58 single-word instructions, a single-cycle hardware multiplier (8 x 8 in one instruction cycle), multiple interrupt sources, a USART, an MSSP (Master Synchronous Serial Port), and capture/compare/PWM modules. The 10-bit ADC is suitable for mixed-signal designs, and the 66 I/O lines support extensive parallel interfaces. Operating supply voltage is 4.5 V to 5.5 V, suitable for 5 V industrial and commercial environments. Typical applications include industrial control systems, motor control front-ends, instrumentation, and legacy embedded designs originally migrated from PIC16C/PIC17C development. The wide PLCC-84 footprint and rich peripheral set made the PIC17C762 a frequent choice for printers, automotive body controllers, and process-control boards. When designing with the PIC17C762-33/L, ensure in-circuit programming access (ICP) and consider that OTP memory cannot be erased, so production programming and verification must be rigorous. Use decoupling capacitors near each supply pin, and follow Microchip's PIC17C family reference design for oscillator layout and ADC analog routing. This page synthesizes distributor pricing, current lifecycle status, same-package alternatives (PIC17C752T-33/L, PIC17C756A series), and practical design notes for engineers sourcing the PIC17C762-33/L, supplementing the manufacturer datasheet with selection guidance.

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PIC17C762-33E/L - 8-bit 33MHz MCU, 16KB OTP, 84-PLCC | Microchip
PIC17C762-33E/L

PIC17C762-33E/L - 8-bit 33MHz MCU, 16KB OTP, 84-PLCC | Microchip

The Microchip Technology PIC17C762-33E/L is a high-performance 8-bit CMOS OTP-based microcontroller from the PIC® 17C family, featuring a 33 MHz maximum clock speed with 121 ns single-cycle instruction execution (8.25 MIPS), 16 KB (8K × 16) of One-Time Programmable program memory, and 678 bytes of RAM. Housed in an 84-pin PLCC (Plastic Leaded Chip Carrier, J-Lead) package measuring 29.31 × 29.31 mm, this device also integrates a 16-channel, 10-bit Analog-to-Digital Converter (ADC) and supports up to 50 I/O ports across the operating voltage range of 4.5 V to 5.5 V. The device is specified for the extended industrial temperature range of −40 °C to +125 °C, making it suitable for harsh-environment embedded designs. A microcontroller (MCU) is a single-chip computer containing a processor core, program memory, data memory, and programmable I/O peripherals. The PIC® 17C family sits above the PIC16 family in Microchip's 8-bit hierarchy, offering expanded memory, higher throughput, and integrated analog peripherals aimed at complex embedded-control applications. Within the broader taxonomy, PIC17C762 belongs to: microcontroller → embedded controller → integrated circuit → semiconductor. Its Harvard architecture separates program and data buses, and its 58 single-word instruction set enables compact code generation while retaining deterministic timing. Key features that differentiate this part include its 16-channel 10-bit ADC (sufficient for sensor-array multiplexing), 33 MHz operation yielding 8.25 MIPS throughput, 50 programmable I/O lines, and an OTP program memory that allows factory or prototype programming without requiring in-system re-programmability. The 84-PLCC J-Lead package provides a socket-compatible footprint well suited to industrial control boards and legacy automotive subsystems. Typical applications include industrial automation controllers, automotive body and chassis modules, consumer-electronics motor control, and embedded instrumentation. The device is documented by the manufacturer as a mature OTP part with a recommended successor being the PIC18F8520, indicating that engineers designing new products should evaluate the flash-based PIC18 family. For maintenance of existing designs the PIC17C762-33E/L remains a recognized long-life-cycle component with verified distributor stock as of 2026-09-26. When designing with the PIC17C762-33E/L, ensure the supply rail stays within 4.5 V to 5.5 V and that decoupling capacitors are placed within 5 mm of each power pin. Because OTP memory cannot be rewritten, plan for prototype validation in a windowed (JW) or emulator variant before committing to OTP parts for production. This page synthesizes distributor pricing tiers, drop-in compatible Microchip PIC® 17C alternatives, and practical design notes that complement (but do not duplicate) the manufacturer datasheet. Source references to DigiKey, Mouser, Octopart, and Microchip product pages are provided in the data_sources section.

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PIC17C762-33E/PT - 33MHz 8-bit OTP MCU, 16KB EPROM, 80-TQFP | Microchip
PIC17C762-33E/PT

PIC17C762-33E/PT - 33MHz 8-bit OTP MCU, 16KB EPROM, 80-TQFP | Microchip

The Microchip Technology PIC17C762-33E/PT is a high-performance 8-bit CMOS OTP-based RISC microcontroller belonging to the PIC® 17C family, delivering 8.25 MIPS at a 33 MHz clock with a 121 nanosecond instruction execution time. It integrates 16 KB (8K x 16) of One-Time-Programmable EPROM program memory, executes from a single 58-instruction set, and is housed in an 80-pin TQFP (Thin Quad Flat Pack, gull-wing) surface-mount package. The device operates from a 4.5 V to 5.5 V single supply, with up to 50 digital I/O lines and an internal 10-bit analog-to-digital converter. The 'E' suffix denotes the Extended (Automotive) temperature grade of -40 °C to +125 °C, and the 'PT' suffix identifies the TQFP package and Tray shipping carrier. A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory, data RAM, and configurable peripherals. The PIC17C family occupies a high-end position in Microchip's classic 8-bit PICmicro® hierarchy, sitting between the PIC16 mid-range family and the PIC18 enhanced family. RISC (Reduced Instruction Set Computer) architecture means the 17C762 executes most instructions in a single instruction cycle, and the OTP program memory lets manufacturers program each unit once at production time, which is typical for volume automotive and industrial control modules. Key differentiating features include the 58 single-word instruction set (with only program branches and table reads/writes being two-cycle), 50 bidirectional I/O ports, an internal 10-bit A/D converter, multiple timer/counter modules, and a 16-bit internal data path that enables fast arithmetic. The TQFP-80 package provides ample pin count for parallel buses, external memory expansion, and abundant analog/digital mixed-signal interfacing in a slim 12 mm x 12 mm outline suitable for space-constrained PCB layouts. Typical applications include automotive body and chassis controllers, industrial automation modules, embedded control boards that require moderate program memory with deterministic interrupt latency, and legacy designs transitioning from older 8-bit PIC architectures. Designers working on new projects should evaluate the PIC18F8520, which Microchip designates as the recommended migration path for the PIC17C762. When designing with this MCU, allocate the program EPROM budget at 16 KB maximum, ensure oscillator stability with proper crystal loading capacitors, and use the In-Circuit Serial Programming (ICSP) interface for production programming since the OTP memory cannot be reprogrammed in the field.

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PIC17C762-33I/PT - 8-bit OTP MCU, 33MHz, 16KB EPROM | Microchip
PIC17C762-33I/PT

PIC17C762-33I/PT - 8-bit OTP MCU, 33MHz, 16KB EPROM | Microchip

The Microchip PIC17C762-33I/PT is a high-performance 8-bit CMOS EPROM-based microcontroller with 16KB of on-chip OTP program memory and 678 bytes of RAM, housed in an 80-pin TQFP (12x12 mm) surface-mount package. The device executes instructions in a 121 ns single cycle at 33 MHz, delivering up to 8.25 MIPS throughput, and uses a 16-bit modified Harvard architecture with an 8-bit data path. What is a PIC17C-series microcontroller? The PIC17C family is Microchip's original high-end 8-bit MCU line, built around a 16-bit instruction word and 8-bit data bus. It sits in the hierarchy: microcontroller -> embedded controller -> semiconductor IC. The 'C' suffix denotes EPROM (one-time-programmable) program memory, which was later superseded by Flash-based PIC18F equivalents. PIC17C parts include a hardware multiply engine, multi-source interrupt controller, and 10-bit ADC peripherals, positioning them between classic PIC16 mid-range MCUs and the later 16-bit PIC24/dsPIC families. Key features of the PIC17C762-33I/PT include 50 digital I/O pins arranged across multiple ports, a 10-bit successive-approximation analog-to-digital converter with multiple input channels, two CCP (Capture/Compare/PWM) modules, a USART port, an SSP (Synchronous Serial Port), and a watchdog timer. The supply voltage range is 4.5 V to 5.5 V, and the operating temperature range is -40 C to +85 C (industrial grade, indicated by the 'I' suffix). The architecture combines a single-cycle hardware multiplier, an eight-level hardware stack, and a 16-level deep software stack, enabling efficient C compiler code generation. The PIC17C762 supports both external and internal program memory modes, with the OTP array providing one-time field programmability for production code. The device also integrates a power-on reset, brown-out reset, and low-voltage detection circuit. Typical applications for the PIC17C762-33I/PT include industrial process control, motor control (BLDC and stepper), instrumentation front-ends requiring 10-bit ADC, HVAC controls, and embedded control boards where OTP-based program memory provides cost advantages over Flash parts. The wide digital I/O count (50 pins) supports keypad scanning, LCD driving, and parallel bus peripherals. When designing with the PIC17C762, note that OTP memory cannot be reprogrammed - production programming must be done at the final stage, and any code bug requires a new device. Engineers should also verify the 33 MHz clock input stability, as the 121 ns instruction cycle is the critical timing parameter. This page synthesizes Microchip PIC17C762 datasheet parameters, cross-reference alternatives, industrial-grade operating constraints, and practical OTP-programming design notes - information not consolidated on the manufacturer product page alone.

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PIC17C762T-16/L - 16MHz 8-bit OTP MCU 84-PLCC | Microchip
PIC17C762T-16/L

PIC17C762T-16/L - 16MHz 8-bit OTP MCU 84-PLCC | Microchip

The Microchip Technology PIC17C762T-16/L is an 8-bit CMOS RISC microcontroller featuring 16KB (8K x 16) of OTP program memory, a 16MHz maximum operating frequency, and 50 I/O ports housed in an 84-pin Plastic Leaded Chip Carrier (PLCC) package measuring 29.31 x 29.31 mm with J-lead terminations. A microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, program memory, and peripheral I/O into one package. The PIC17C762T-16/L belongs to the OTP (One-Time-Programmable) MCU family within the broader PIC17C high-performance series, which itself sits in the hierarchy: PIC17C family -> PIC16/17 architecture -> 8-bit RISC microcontroller -> MCU -> semiconductor device. The PIC17C architecture was engineered for high-throughput embedded control and executes most instructions in a single 121 ns cycle (excluding branches), delivering roughly 8.25 MIPS at 16 MHz. Key specifications include a 58-instruction RISC set, hardware multiply, a 4.5 V to 5.5 V single-supply operating range, 16 KB on-chip OTP program memory, 50 digital I/O lines, and a commercial temperature grade of 0C to +70C. The 84-PLCC surface-mount package exposes a generous pin count for I/O expansion and legacy socket compatibility. Its 16 MHz clock speed makes it suitable for control loops and human-machine interface (HMI) tasks in cost-sensitive designs. Engineered around Microchip's classic Harvard RISC pipeline, the PIC17C762T-16/L uses a separate program and data path to sustain single-cycle throughput. The integrated peripheral set (timers, USART, PWM, ADC) is well matched to motor control and instrumentation; the 33 MHz upper-clocked sibling (PIC17C762-33/L) shares the same pinout and memory map, easing lifecycle migration. Typical applications include industrial automation controllers, consumer-electronics HMI panels, and medical-device front-end boards, where the 84-pin PLCC footprint provides ample I/O for keypads, displays, and sensor interfaces. Designers often use it as a stepping stone before migrating to the pin-compatible flash-based PIC18F8520 suggested by Microchip for new designs. When laying out the PCB, place 0.1 uF decoupling Vdd/Vss pairs as close to the package as possible to suppress the 16 MHz digital noise. Because the device is OTP, firmware must be fully validated before programming; consider the flash-based PIC18F8520 for prototypes that need iteration. This page synthesizes distributor stock data (DigiKey, Heisener, Veswin), parametric comparisons with the 33 MHz variant and the recommended migration part PIC18F8520, and drop-in compatibility notes that are not consolidated in any single manufacturer document.

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PIC17C762T-16E/PT - 8-Bit 16MHz OTP MCU 16KB | Microchip
PIC17C762T-16E/PT

PIC17C762T-16E/PT - 8-Bit 16MHz OTP MCU 16KB | Microchip

The Microchip Technology PIC17C762T-16E/PT is a high-performance 8-bit CMOS EPROM microcontroller from the PIC17C family, operating at up to 16 MHz and delivering 16 KB (8K x 16) of One-Time Programmable (OTP) program memory in a surface-mount 80-pin TQFP (12x12 mm) package. The device provides 678 bytes of general-purpose RAM and exposes 66 digital I/O pins, making it one of the highest-pin-count members of the legacy PIC17C family. The 'E' suffix denotes the extended industrial temperature grade of -40C to +125C, while the 'T' indicates tape-and-reel packaging for high-volume SMT production lines. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (ROM/EPROM/Flash/OTP), data RAM, and a configurable set of peripheral blocks into one package. The PIC architecture is a Harvard RISC design, which separates program and data buses so the CPU can fetch instructions in parallel with operand reads - this is the main reason a single-cycle PIC instruction can outperform a multi-cycle 8051 instruction at the same clock rate. PIC microcontrollers sit within the broader hierarchy: microcontroller -> embedded processor -> semiconductor -> integrated circuit. Key features of the PIC17C762T-16E/PT include a 10-bit successive-approximation analog-to-digital converter (ADC), multiple 16-bit timer/counters with capture/compare/PWM capability, a USART serial port, and an enhanced instruction set with hardware multiply. The 16 MHz oscillator drives a four-clock-per-instruction core, yielding roughly 4 MIPS of sustained throughput. The OTP program memory is one-time-programmable - ideal for low-to-medium-volume production runs that need ROM-grade security without NRE mask charges. Typical applications for the PIC17C762T-16E/PT include industrial automation controllers, automotive body and chassis ECUs (within the extended temperature range), HVAC control boards, motor-drive supervisory MCUs, and instrumentation front-ends that need a generous I/O count plus on-chip ADC. The 80-pin TQFP footprint also makes it suitable for legacy designs that require form-factor-compatible migration from other PIC17C7xx variants. When migrating code, the OTP memory must be programmed before soldering; the part cannot be field-upgraded like a Flash MCU.

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PIC17C762T-16I/L - 16MHz 8-bit EPROM MCU, 16KB OTP, 10-bit ADC | Microchip
PIC17C762T-16I/L

PIC17C762T-16I/L - 16MHz 8-bit EPROM MCU, 16KB OTP, 10-bit ADC | Microchip

The Microchip Technology PIC17C762T-16I/L is a high-performance 8-bit CMOS EPROM microcontroller with 16KB (8K x 16) of OTP program memory, 678 bytes of RAM, and an integrated 10-bit analog-to-digital converter, housed in an 84-pin PLCC package (29.31 x 29.31 mm) with J-leads for surface mounting. An EPROM-based microcontroller is a programmable single-chip computer whose program memory uses Erasable Programmable Read-Only Memory that can be erased by UV exposure and re-programmed, supporting prototype and pre-production development before mask-ROM commit. The PIC17C family sits in the broader taxonomy 8-bit MCU -> microcontroller -> embedded processor -> semiconductor, designed for applications requiring high I/O count and integrated analog. The PIC17C762T-16I/L delivers 16MHz maximum clock input yielding a 121 ns instruction cycle, with all instructions single-cycle except program branches and table reads/writes (two-cycle). The RISC architecture provides 58 single-word instructions, an 8-bit x 8 single-cycle hardware multiplier, and a 16-level deep hardware stack for fast interrupt response. It supports up to 50 digital I/O lines plus a 16-channel 10-bit ADC for sensor and mixed-signal acquisition. The CMOS process technology keeps operating current low while supporting a 4.5V to 5.5V supply. Industrial temperature grade -40C to +85C enables deployment in harsh environments. The 84-PLCC J-lead package supports standard surface-mount assembly with through-hole-like mechanical robustness, easing rework and prototyping. Typical applications include industrial automation controllers, motor control front-ends, consumer electronics with analog sensing, embedded data acquisition systems, and instrumentation requiring 10-bit measurement accuracy. The wide I/O count and integrated ADC simplify BOM in mixed-signal designs. When designing, allocate the upper address range for GPR and the lower range for SFR, follow Microchip PIC17C programming specs for EPROM erase windows (windowed package variants), and budget ADC acquisition time against instruction cycles. The 'T' suffix denotes tape-and-reel packaging and 'I' denotes industrial temperature grade. This page synthesizes distributor pricing, drop-in PIC17C762 alternatives, and practical design notes from the Microchip datasheet that engineering teams will not find aggregated on a single vendor page.

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PIC17C762T-33/L - 8-Bit 33MHz OTP MCU, 16KB EPROM, 84-PLCC | Microchip
PIC17C762T-33/L

PIC17C762T-33/L - 8-Bit 33MHz OTP MCU, 16KB EPROM, 84-PLCC | Microchip

The Microchip Technology PIC17C762T-33/L is a high-performance 8-bit CMOS EPROM microcontroller with 16KB (8K x 16) of One-Time Programmable program memory, a 10-bit analog-to-digital converter, and a 33 MHz maximum operating frequency. It is housed in an 84-pin Plastic Leaded Chip Carrier (PLCC, J-Lead) package rated for the commercial temperature range (0C to +70C). The device targets embedded control applications that require deterministic execution and integrated analog peripherals in a moderate-density package. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (ROM/EPROM/Flash), data RAM, I/O, and peripherals on one die. PIC microcontrollers use a RISC Harvard architecture with a single accumulator (WREG) and a small fixed instruction set; the PIC17C family extends this with 16-bit-wide program memory, 58 single-word instructions, and 121 ns single-cycle execution (except program branches and table reads/writes which take two cycles). It belongs to the hierarchy: 8-bit MCU -> microcontroller -> embedded controller -> semiconductor IC. Key features include a 10-bit A/D converter with up to 16 analog input channels, 50 digital I/O lines, an external interrupt controller, multiple timer/counter modules, a synchronous serial port (SSP) for SPI/I2C, and a USART for asynchronous serial communication. The on-chip EPROM enables prototype and low-volume production programming via standard EPROM programmers, with the 'T' suffix indicating tape-and-reel packaging for SMT assembly. The PIC17C762 uses an enhanced Harvard architecture with separate program and data buses, an 8-level hardware stack, and interrupt-driven I/O. The 33 MHz clock yields a 121 ns instruction cycle, supporting deterministic real-time control loops. Internal peripherals are mapped into the data memory space and accessed via banked register addressing. Typical applications include industrial automation controllers, motor control front-ends, instrumentation front-ends, automotive body controllers, smart sensor hubs, and embedded systems requiring integrated 10-bit ADC and parallel I/O with EPROM-based firmware storage. The wide operating voltage range of 4.5V to 5.5V supports TTL-compatible logic interfaces. When designing with this device, ensure the oscillator start-up time and PLL configuration are matched to the crystal specification; inadequate PCB decoupling can couple digital switching noise into the analog input pins and degrade A/D conversion accuracy. Always use the latest PIC17C762 errata sheet during firmware development to identify any silicon revisions affecting peripheral behavior. This page synthesizes distributor pricing, drop-in PIC17C762 family alternatives, and practical design notes not found in the standalone manufacturer datasheet, giving engineers an integrated view for sourcing and design-in decisions.

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PIC17C762T-33/PT - 33MHz 8-Bit OTP MCU with 10-bit ADC | Microchip
PIC17C762T-33/PT

PIC17C762T-33/PT - 33MHz 8-Bit OTP MCU with 10-bit ADC | Microchip

The Microchip PIC17C762T-33/PT is a high-performance 8-bit CMOS EPROM-based microcontroller with integrated 10-bit A/D converter, 16KB of OTP program memory, 678 bytes of data RAM, and 66 I/O lines, housed in an 80-pin TQFP (PT) package. It executes instructions at 121 ns per cycle from a 33 MHz clock input, includes a single-cycle hardware multiplier, and supports 50 I/O ports in an extended variant (LCC-68). What is a PIC17C microcontroller? The PIC17C family represents Microchip's high-end 8-bit RISC microcontroller line, sitting above the PIC16F/PIC16C mid-range family in performance and peripheral integration. PIC17C devices offer a RISC Harvard architecture, multi-source interrupt controller, and 16-bit instruction word width, targeting embedded applications that need more processing headroom than the PIC16 family but pre-date the PIC18 introduction. Key features of the PIC17C762T-33/PT include 33 MHz maximum operating frequency yielding 121 ns instruction cycle, 8-bit data bus with 16-bit instruction path, integrated 10-bit successive-approximation A/D converter, dual-capture/compare/PWM modules, USART with addressing capability, 8-level hardware stack, and 16 interrupt sources. The OTP EPROM program memory supports one-time field programming for production volumes with reduced cost vs. windowed CERDIP variants. The PIC17C762 architecture uses a Harvard RISC design with separate program and data buses, enabling single-cycle instruction fetch and execution except for program branches and table reads/writes which are two-cycle. The integrated 10-bit A/D converter multiplexes across multiple channels for sensor monitoring, while the PWM and capture modules support motor control and timing-critical applications. Typical applications include industrial motor control, HVAC systems, automotive body controllers, uninterruptible power supply (UPS) controllers, and instrumentation requiring high pin-count with integrated ADC. The 33 MHz throughput allows software implementation of complex control loops that would otherwise require an external DSP. When designing with this OTP part, plan code carefully before programming as OTP cannot be erased and re-programmed. For development, use a windowed UV-erasable CERDIP variant (e.g., PIC17C762-33/L) on the same PCB layout with the same TQFP-80 footprint. Verify A/D reference voltage decoupling and ensure VDD/VSS pairing follows the datasheet layout guide. This page synthesizes current distributor pricing, drop-in alternatives, and practical OTP design notes not found in the bare manufacturer datasheet, accelerating BOM decisions for production engineers.

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PIC17C762T-33I/L - 33MHz 8-bit OTP MCU, 16KB EPROM, 10-bit ADC | Microchip
PIC17C762T-33I/L

PIC17C762T-33I/L - 33MHz 8-bit OTP MCU, 16KB EPROM, 10-bit ADC | Microchip

The Microchip Technology PIC17C762T-33I/L is a high-performance 8-bit CMOS EPROM microcontroller in the PIC17C family, integrating 16KB (8K x 16) of One-Time-Programmable (OTP) program memory, 678 bytes of data RAM, a 10-bit analog-to-digital converter, and 50 digital I/O pins in a surface-mount 84-pin PLCC package (29.31 x 29.31 mm). An 8-bit microcontroller (MCU) is a single-chip computer that combines a CPU, program memory, data RAM, and peripherals on one die. Within the PIC taxonomy, the PIC17C family sits in the high-performance tier between the mid-range PIC16C/PIC16F devices and the enhanced PIC18F family, offering a 16-bit-wide instruction word, an 8-bit hardware multiplier, and an instruction cycle as short as 121 ns at the maximum 33 MHz oscillator rate. These characteristics place PIC17C parts in the hierarchy: microcontroller -> embedded MCU -> 8-bit MCU -> PIC family -> PIC17C sub-family -> CMOS EPROM/OTP variants. Key features of the PIC17C762T-33I/L include a single-cycle 121 ns instruction execution (except for program branches and table reads/writes which are two-cycle), an 8-bit single-cycle hardware multiplier, 50 I/O ports, and a wide operating voltage of 4.5 V to 5.5 V. The 'T' suffix in the part number indicates tape-and-reel packaging, the '33' indicates a 33 MHz maximum clock input, the 'I' indicates an industrial temperature grade of -40 C to +85 C, and '/L' indicates the 84-pin PLCC package. The 'C' between PIC17 and 762 indicates the EPROM/OTP program-memory variant, distinguishing it from later ROMless (PIC17C76x) and flash (PIC17C7xx) revisions. The PIC17C762T-33I/L's RISC-style Harvard architecture isolates the program-memory bus from the data-memory bus, allowing instruction fetch and operand access to occur on the same cycle. The integrated 10-bit ADC with multiple input channels removes the need for an external converter in many sensor-interface designs, while the high pin count (66 I/O per the Mouser listing, 50 per other sources - see _validation_note) supports complex human-machine interface or parallel-bus applications. The OTP memory variant suits prototyping and pre-production builds where one-time programming is acceptable and the larger flash-based PIC18F family is not yet qualified. Typical applications for the PIC17C762T-33I/L include industrial control systems, motor drive front-ends, automotive body and chassis ECUs, data-acquisition front-ends, and consumer-electronics controllers. The combination of 50+ I/O lines, 10-bit ADC, and 121 ns instruction throughput makes the device attractive for legacy 8-bit designs that need deterministic timing without migrating to a 16-bit dsPIC. When designing with this device, note that the PIC17C family is in NRND/EOL status at Microchip and should be considered a long-term-availability part rather than a new-design choice. For new designs, Microchip recommends the PIC18F family or dsPIC33 family as functional replacements that share development-tool chains (MPLAB X IDE, MPLAB ICD programmers) but require PCB respin due to differing pinout and peripheral sets. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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PIC17C762T-33I/PT - 33 MHz 8-bit EPROM MCU, 16KB, 80-TQFP
PIC17C762T-33I/PT

PIC17C762T-33I/PT - 33 MHz 8-bit EPROM MCU, 16KB, 80-TQFP

The Microchip Technology PIC17C762T-33I/PT is a high-performance 8-bit CMOS EPROM microcontroller from the PIC17C family, delivering 33 MHz clock input with a 121 ns single-cycle instruction cycle (except for program branches and table reads/writes which are two-cycle), integrating 16KB (8K x 16) of one-time-programmable (OTP) EPROM program memory in an 80-pin TQFP package. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, RAM, peripherals, and I/O on one die, executing instructions on 8-bit data words. PIC microcontrollers are RISC (Reduced Instruction Set Computer) devices, using only 58 single-word instructions that are mostly single-cycle, with a built-in single-cycle hardware multiplier. PIC microcontrollers sit within the broader taxonomy of microcontroller -> embedded processor -> semiconductor -> integrated circuit, and are widely used in industrial control, automotive body electronics, and consumer appliances. Key features of the PIC17C762T-33I/PT include 16KB OTP EPROM (8K x 16), 50 digital I/O pins, an on-chip 10-bit analog-to-digital converter (A/D), a single-cycle 8x8 hardware multiplier, and a 5V (4.5V to 5.5V) supply range. The 'T' suffix indicates tape-and-reel packaging, while 'I' denotes industrial temperature grade (-40C to +85C). The 80-pin TQFP footprint provides ample I/O for human-machine interface and motor-control subsystems. Architecturally, the PIC17C762 uses a Harvard architecture with separate program and data buses, a 16-bit-wide program memory bus to fetch one instruction per cycle, and an 8-bit data path. The 121 ns instruction cycle at 33 MHz oscillator input provides roughly 8.26 MIPS throughput, enabling real-time PID control loops and high-speed serial communication. The integrated 10-bit A/D samples analog signals from sensors, while 50 I/O lines drive displays, keypads, and actuators. Typical applications for the PIC17C762T-33I/PT include industrial automation controllers, HVAC blower and damper controls, uninterruptible power supply (UPS) monitors, motor control front-ends, and consumer appliance main boards. Its combination of OTP program memory, wide I/O count, and integrated A/D makes it especially suited to cost-sensitive embedded products that require on-chip analog measurement. When designing with this part, pay close attention to the EPROM (OTP) memory window: code is one-time-programmable and cannot be erased, so development must use the PIC17C762-33I/PT (windowed CERDIP) or PIC17C762T-33/L (UV-erase PLCC) variants for prototyping. Provide adequate decoupling (0.1 uF ceramic near each VDD pin) and ensure MCLR is properly tied high through a 10 kohm resistor for normal operation. This page synthesizes distributor stock levels, parametric drop-in alternatives in the same 80-TQFP footprint, and practical design notes that are not compiled in the manufacturer datasheet, providing engineers and procurement teams a faster route from search to part selection.

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PIC17C766-16/L - 8-Bit 16MHz OTP MCU 32KB 84-PLCC | Microchip
PIC17C766-16/L

PIC17C766-16/L - 8-Bit 16MHz OTP MCU 32KB 84-PLCC | Microchip

The Microchip Technology PIC17C766-16/L is a high-performance 8-bit CMOS EPROM microcontroller running at 16 MHz instruction-clock input with an 8.25 MIPS throughput (121 ns single-cycle instruction time) in an 84-pin PLCC package. It integrates 32 KB of OTP program memory (organized as 16K x 16), 902 bytes of general-purpose RAM, and 66 digital I/O lines, and is part of Microchip's legacy PIC17C family. A 10-bit analog-to-digital converter with 16 input channels, four capture modules, three PWM modules, and a synchronous serial port (configurable as 3-wire SPI or 2-wire I2C) round out the on-chip peripherals. What is an OTP microcontroller? An OTP (One-Time-Programmable) microcontroller is an MCU whose program memory is implemented as non-volatile EPROM cells that can be written exactly once using a programmer, after which the code is permanent. OTP parts bridge the gap between prototyping (where UV-erasable EPROM is useful) and high-volume production (where mask-ROM is cheapest); OTP is preferred for low-to-mid volume runs because it eliminates the windowed package and eraser light source needed for EPROM. The PIC17C766 sits in the hierarchy: microcontroller -> 8-bit MCU -> RISC MCU -> microcontroller family. Key features include a single-cycle hardware multiplier, an external memory addressing interface that maps the device linearly into a larger program/data memory space, two UART modules, and an instruction set limited to 58 single-word instructions that makes hand-coded assembly straightforward. Hardware stack and pointer-managed tables complement the RISC pipeline. The 84-pin J-leaded PLCC (29.31 x 29.31 mm) supports up to 66 I/O pins plus dedicated analog, debug, and oscillator pads. The device operates from a single 5 V supply and consumes roughly 50 mA active at 16 MHz depending on I/O loading. Designers must respect the maximum clock-input frequency and the EPROM programming algorithm described in the manufacturer datasheet. Programming is performed via Microchip's standard two-pin ICSP interface, and the part is qualified for 0 C to +70 C commercial operation. Typical applications include industrial control panels, motor-driver front-ends, low-cost sensor aggregators, and embedded consumer devices that need a generous pin count and on-chip ADC. The part is also used in educational and legacy equipment designs where the PIC17 architecture is already deployed and code migration would be costly. When designing with the PIC17C766-16/L, reserve an ICSP header on the PCB and add a pull-up on MCLR to ensure reliable programming and reset behaviour. Because the part is OTP, design firmware to allow for in-circuit reprogramming via bootloader on a sibling flash MCU if field updates are a requirement. This page synthesizes distributor pricing, same-family PIC17C drop-in alternatives, parametric comparison data and 84-PLCC package-level design notes not found in a single datasheet reference.

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PIC17C766-16E/PT - 8-Bit OTP MCU, 32KB, 16MHz, 80-TQFP | Microchip
PIC17C766-16E/PT

PIC17C766-16E/PT - 8-Bit OTP MCU, 32KB, 16MHz, 80-TQFP | Microchip

The Microchip Technology PIC17C766-16E/PT is a high-performance 8-bit CMOS OTP microcontroller in the PIC17C family, packaged in an 80-pin TQFP (PT) with 16 MHz maximum clock and 5 V typical supply. It integrates 32 KB of OTP program memory (organized as 16K x 16), 902 bytes of general-purpose RAM, and a rich peripheral set including up to 16 channels of 10-bit ADC, three PWM modules, four capture inputs, an SSP configurable as SPI or I2C, two USART ports, and a 16-bit external memory bus. The -16E suffix denotes 16 MHz operation with the Extended industrial temperature grade (-40C to +125C). What is an 8-bit OTP microcontroller? An 8-bit OTP (One-Time Programmable) microcontroller is a single-chip computer built around an 8-bit data path, with non-volatile program memory that can be written once and then becomes read-only - ideal for production volumes where field reprogramming is not required. It sits within the broader hierarchy of microcontroller -> embedded controller -> semiconductor IC, and the PIC17C family represents Microchip's highest-pin-count, highest-performance 8-bit architecture before the migration to PIC18 flash parts. Key features of the PIC17C766 include 8.25 MIPS throughput (121 ns instruction cycle), 58 single-word instructions, upwards source-code compatibility with PIC16C5X, PIC12CXXX, and PIC16CXX devices, 33 levels of hardware stack, and a hardware multiplier that executes an 8x8 multiply in a single instruction cycle. The 80-pin TQFP footprint exposes a 16-bit external memory interface for systems that need more RAM or specialty memory-mapped peripherals than the on-chip 902 bytes provide. The device is built on an enhanced CMOS process with low-power design techniques, supporting typical applications in industrial control, automotive body and chassis ECUs, appliance control, and instrumentation front-ends. The extended temperature grade and the broader PIC17C peripheral mix distinguish it from the smaller PIC16C and PIC17C75x predecessors. New designs are directed to the recommended replacement PIC18F8520 (per Microchip's product page note "A newer device is available. Please consider PIC18F8520."). Design consideration: when migrating, validate the OTP programming timing, the external memory bus timing, and the ADC acquisition time against the new flash part; the PIC18F8520 is pin-to-pin compatible in many TQFP variants, but peripheral SFR addresses differ. This page synthesizes distributor pricing, drop-in alternatives, and practical sourcing notes not found in the bare manufacturer datasheet.

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PIC17C766-16I/L - 8-Bit 16MHz OTP MCU, 32KB, 84-PLCC | Microchip
PIC17C766-16I/L

PIC17C766-16I/L - 8-Bit 16MHz OTP MCU, 32KB, 84-PLCC | Microchip

The Microchip PIC17C766-16I/L is a high-performance 8-bit CMOS EPROM (OTP) microcontroller delivering 8.25 MIPS (121 ns instruction execution) in an 84-pin PLCC package, with 32 KB of program memory (16K x 16 words), 902 bytes of RAM, and 66 digital I/O pins. It integrates a 10-bit analog-to-digital converter and runs at up to 16 MHz from a 4.5 V to 5.5 V supply. The 'I' suffix denotes the industrial operating temperature range of -40 C to +85 C, and the '/L' suffix identifies the 84-pin PLCC (Plastic Leaded Chip Carrier) package, also marketed as LCC-84 / QCCJ-84 with J-bend leads. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (ROM/Flash/OTP), data memory (RAM), and programmable I/O peripherals. The 8-bit MCU class predates 16-bit and 32-bit Cortex-M parts and remains widely deployed in cost-sensitive, deterministic control applications. Within Microchip's portfolio, the PIC17C family sits between the PIC16 mid-range and the enhanced PIC18 devices, offering more peripherals and code space than PIC16 while remaining upward-compatible with PIC12Cxxx and PIC16Cxx instruction sets - only 58 single-word instructions to learn, with all instructions executing in a single cycle except program branches and table reads/writes, which take two cycles. Key differentiating features of the PIC17C766 include its 84-pin PLCC footprint supporting 66 I/O lines, the integrated 10-bit ADC, hardware multiplier for fast DSP-style math, and the 32 KB (16K x 16) OTP program memory that is one-time programmable but production-friendly. The 16 MHz oscillator with 4-clock internal divider yields the 121 ns instruction cycle, and the device supports a wide peripheral set including USART, capture/compare/PWM, and timers suitable for motor and power conversion control. Architecturally, the PIC17C766 uses a Harvard bus (separate program and data paths) and an enhanced 8-bit core with a hardware multiply engine; combined with the OTP memory it is well suited to volume production where firmware is fixed at the time of manufacture. Per the manufacturer datasheet, the PIC17C766 is the largest-memory member of the PIC17C family and is now designated NRND/EOL with the PIC18F8520 recommended as the modern flash-based successor. Typical applications include industrial motor control, HVAC actuators, automotive body and chassis subsystems, white goods and appliance control, and embedded control boards that need many parallel I/O lines plus on-chip ADC. The 84-pin PLCC package is also attractive for legacy through-hole designs and socketed prototyping. When designing with this part, plan for OTP-only programming (code must be committed at production time) and verify supply availability since the device is being phased out in favor of PIC18F flash parts.

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