Microcontroladores

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PIC17C752-16/L - 8-bit 16MHz 16KB OTP MCU 50 I/O | Microchip
PIC17C752-16/L

PIC17C752-16/L - 8-bit 16MHz 16KB OTP MCU 50 I/O | Microchip

The Microchip Technology PIC17C752-16/L is an 8-bit CMOS OTP-based microcontroller from the PIC® 17C family, delivering 8.25 MIPS with a 121 ns instruction cycle at a 16 MHz clock input (33 MHz max). It integrates 16KB (8K x 16) of One-Time-Programmable program memory and 678 bytes of general-purpose RAM in a 68-pin PLCC (J-Lead) package measuring 24.23 x 24.23 mm, with up to 50 digital I/O pins. The -16 speed grade runs from a 4.5V to 5.5V supply, and the core is built around the classic PIC RISC architecture with only 58 single-word instructions, single-cycle hardware multiply, and upwards source compatibility with PIC16C5X, PIC12CXXX and PIC16CXX devices. An 8-bit microcontroller (MCU) is a small computer-on-a-chip that combines a CPU, RAM, non-volatile program memory and peripheral I/O on a single die. PIC microcontrollers use a Harvard RISC architecture - separate program and data buses and a fixed instruction set - which lets them complete most instructions in one clock cycle, making them well-suited to deterministic embedded control. Within the broader taxonomy they sit under microcontrollers -> microcomputer -> embedded processor -> semiconductor. The PIC17C family is the highest-performance 8-bit branch of the PIC family tree, intended as a stepping stone before migrating to PIC18 or dsPIC parts. Key features of the PIC17C752-16/L include an 8-level hardware stack, programmable code protection, power-on reset, brown-out reset, watchdog timer with its own on-chip RC oscillator, a hardware single-cycle 8x8 multiplier, and a versatile 16-bit timer/counter. Its 50 I/O lines can each be independently configured as input or output, and several peripheral functions (USART, SPI, I2C, capture/compare/PWM) are multiplexed onto those pins. Internal non-volatile program memory is OTP EPROM, suitable for low-volume production runs and for code that is rarely updated in the field. Typical applications include industrial control front-ends, sensor signal conditioning hubs, automotive body and chassis modules, instrumentation, point-of-sale terminals, motor control boards, and legacy embedded designs that need to remain on the original 8-bit PIC toolchain. The 50 I/O count and 16 MHz clock are ample for keypad scanning, LCD driving, UART-based device networking and simple PID loops without requiring an external DSP or 32-bit core. Designers should note that the PIC17C752 has been formally migrated by Microchip to the PIC18F6520, which offers Flash memory, a richer peripheral set and a familiar pin-compatible upgrade path. For new designs Microchip recommends the PIC18F6520; PIC17C752-16/L is appropriate for maintaining and replicating existing production hardware where the original PIC17 toolchain, code base, and OTP behavior must be preserved.

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PIC17C752-16E/L - 8-bit OTP MCU, 16KB, 50 I/O, 16MHz | Microchip
PIC17C752-16E/L

PIC17C752-16E/L - 8-bit OTP MCU, 16KB, 50 I/O, 16MHz | Microchip

The Microchip Technology PIC17C752-16E/L is an 8-bit high-performance OTP microcontroller from the PIC17C family, featuring 16KB of program memory (8K x 16 words), 678 bytes of RAM, and 50 digital I/O pins in a 68-pin PLCC (LCC-68, J-Lead) package. It operates at up to 16MHz clock speed with a 121ns instruction cycle and supports a supply voltage range of 4.5V to 5.5V. The "E" suffix denotes the extended industrial operating temperature range of -40C to +125C, while the "L" suffix indicates the PLCC-68 surface-mount J-leaded package. An OTP microcontroller is a single-chip computer with non-volatile one-time-programmable program memory, used in embedded control applications. The PIC17C752 family sits within the broader hierarchy of microcontroller -> embedded controller -> semiconductor IC. OTP memories are programmed once and retain their contents, making them well suited to high-volume mature products where firmware is finalized. The PIC17C architecture uses a 16-bit modified Harvard structure with separate program and data paths, giving it a higher code efficiency than 8-bit PIC16 contemporaries while keeping the classic PIC register-based programming model. Key features of the PIC17C752-16E/L include 58 single-word instructions with a 121ns single-cycle execution time (except program branches and table reads/writes which take two cycles), 12 channels of 10-bit Analog-to-Digital conversion, a synchronous serial port configurable as either 3-wire SPI or 2-wire I2C, two USART ports, 4 capture inputs, 3 PWM outputs, and an external memory bus capable of addressing up to 64KB of external program memory and 64KB of external data memory. The device also includes multiple 16-bit timer/counters and a hardware multiply unit. The PIC17C752-16E/L integrates a high-performance RISC-like CPU with on-chip peripherals for industrial control, instrumentation, and motor control. The 10-bit ADC with 12 input channels supports direct connection to analog sensors, while the PWM and capture peripherals simplify closed-loop control of motors and power converters. The external memory bus allows program expansion beyond the internal 16KB OTP for applications requiring more code space. Typical applications for the PIC17C752-16E/L include industrial automation controllers, motor control drive electronics, uninterruptible power supply (UPS) control boards, security and access control panels, and instrumentation front-ends. Its 50 I/O pins and rich peripheral set make it particularly attractive for designs requiring many simultaneous sensors and actuators. When designing with this part, verify whether the project requires field reprogrammability: because OTP memory cannot be rewritten, all firmware revisions must be programmed before final assembly. Designers evaluating flash-based alternatives should consider the PIC18F family or dsPIC33EP series for new designs. This page synthesizes verified distributor data, drop-in same-package alternatives, and engineering guidance not found in the manufacturer datasheet alone.

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PIC17C752-16E/PT - 8-bit 16MHz 16KB OTP MCU 64-TQFP | Microchip
PIC17C752-16E/PT

PIC17C752-16E/PT - 8-bit 16MHz 16KB OTP MCU 64-TQFP | Microchip

The Microchip Technology PIC17C752-16E/PT is an 8-bit RISC CMOS OTP microcontroller with 16MHz core speed, 16KB (8K x 16) of One-Time-Programmable program memory, and 454 bytes of general-purpose RAM, housed in a 64-pin TQFP (10x10 mm) package. The device executes 58 single-word instructions in a single 121 ns cycle (with two-cycle branches and table reads/writes), delivering up to 8.25 MIPS throughput. It supports 50 digital I/O lines and operates from a 4.5V to 5.5V supply. An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (ROM/EPROM/Flash/OTP), volatile data memory (RAM), and programmable I/O peripherals on one die. The PIC17C family sits at the high end of Microchip's classic 8-bit lineup, above the PIC16C and PIC12C series, and is source-compatible with the PIC16C5X, PIC12CXXX, and PIC16CXX devices. Within the broader taxonomy, the PIC17C is a Harvard-architecture RISC controller with an 8-bit data path, classified as a microcontroller -> embedded processor -> semiconductor IC. Key features of the PIC17C752-16E/PT include: four additional timers versus the PIC16C baseline, four capture inputs, three PWM outputs, a 12-channel 10-bit analog-to-digital (A/D) converter, external memory addressing, and a synchronous serial port configurable as either 3-wire SPI or 2-wire I2C. Two USART channels provide asynchronous and synchronous serial communication, and the part supports up to 50 I/O pins from its 64-pin TQFP package. The 'E' suffix indicates the extended industrial temperature grade of -40C to +125C, while the 'PT' suffix denotes the plastic TQFP package. Architecturally, the PIC17C752 uses a 16-bit instruction word with an 8-bit data path. The Harvard bus separates program and data fetches so most instructions complete in one cycle. The 10-bit A/D converter, PWM modules, capture inputs, and USARTs are mapped to dedicated SFRs; developers access peripherals through banked register selects. External memory addressing extends program space beyond on-chip OTP for applications needing larger code. Typical applications include industrial control, automotive body and chassis modules, instrumentation with analog front ends, motor control with PWM, and embedded control requiring SPI/I2C peripheral expansion. The 12-channel 10-bit ADC suits multi-sensor monitoring, while the PWM and capture peripherals support closed-loop motor control. The part's automotive temperature rating and OTP-based supply model also fit pre-production and low-volume automotive programs. When designing with the PIC17C752-16E/PT, note that the 'E' (extended -40C to +125C) grade makes it the right choice for automotive or harsh-environment products, whereas the standard PIC17C752-16/PT (0C to +70C commercial) fits office and lab equipment. OTP memory requires programming at the factory or via a device programmer before solder reflow; plan the firmware supply chain accordingly. A newer pin-compatible Flash alternative, PIC18F6520, is recommended for new designs. This page synthesizes distributor pricing, drop-in Microchip same-family alternatives, and practical design notes not found in the manufacturer datasheet alone.

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PIC17C752-16I/L - 8-Bit 16MHz OTP MCU, 16KB, 50 I/O | Microchip
PIC17C752-16I/L

PIC17C752-16I/L - 8-Bit 16MHz OTP MCU, 16KB, 50 I/O | Microchip

The Microchip PIC17C752-16I/L is a high-performance 8-bit CMOS OTP microcontroller from the PIC17C family, delivering 8.25 MIPS throughput (121 ns instruction cycle) at 16 MHz clock input, housed in a 68-pin PLCC (LCC-68, 24.23x24.23 mm) package. Key specifications include 16 KB (8K x 16) of One-Time-Programmable (OTP) program memory, 678 bytes of RAM, and 50 digital I/O pins, with an instruction set of only 58 single-word instructions for rapid development. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory (here OTP), volatile data memory (RAM), and programmable peripherals into one IC. The PIC17C family sits above the PIC16 mid-range and below the PIC18 in Microchip's 8-bit lineup, offering the highest 8-bit performance and the largest I/O count for legacy designs. MCUs in this class are the decision-making core of an embedded system, executing firmware that controls sensor inputs, actuators, communication buses, and user interfaces in industrial, automotive, and consumer products. OTP variants are intended for mature, fixed-production applications where code is finalized at manufacturing time. Key features include 25 input-only and bidirectional I/O lines organized into ports, an on-chip hardware multiplier for single-cycle 8x8 operations, and an instruction pipeline that supports two-cycle branches and table reads/writes. The RISC architecture and 16-bit instruction word improve code density over 8-bit instruction MCUs, while a programmable code-protection bit secures on-chip firmware. The wide operating voltage range of 4.5V to 5.5V is suitable for 5V industrial systems, and the -40C to +85C industrial temperature rating supports indoor and factory environments. Typical applications include industrial control panels, motor drive interfaces, instrumentation front-ends, and embedded control systems that migrated from earlier PIC17C designs. The PLCC-68 socketed package also supports prototyping and field-replaceable modules, a common pattern in legacy industrial installations. Designers should note the -16 speed suffix (16 MHz) corresponds to a 33 MHz oscillator input; higher marking suffixes do not imply higher supply tolerance. OTP memory cannot be reprogrammed, so engineers should prototype with the equivalent UV-erasable PIC17C752JW windowed part or the flash-based PIC18F6520 recommended by Microchip for new designs. This page consolidates distributor pricing, drop-in compatible alternatives, and practical design considerations for engineers maintaining PIC17C752 inventory.

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PIC17C752-16I/PT - 8-bit OTP MCU 16KB EPROM 50 I/O | Microchip
PIC17C752-16I/PT

PIC17C752-16I/PT - 8-bit OTP MCU 16KB EPROM 50 I/O | Microchip

The Microchip PIC17C752-16I/PT is a high-performance 8-bit CMOS EPROM microcontroller delivering 8.25 MIPS performance with a 16 MHz oscillator input and 121 ns instruction cycle, packaged in a 64-pin TQFP (10x10 mm) surface-mount form factor. It integrates 16 KB of OTP program memory, 678 bytes of RAM, 50 digital I/O lines, and a 12-channel 10-bit Analog-to-Digital converter on-chip. According to the Microchip product page, the PIC17C752 family supports external memory addressing, a synchronous serial port configurable as either 3-wire SPI or 2-wire I2C, two USARTs, and additional timers including four capture and three PWM functions. A PIC microcontroller (Programmable Interface Controller) is a family of 8/16/32-bit RISC microcontrollers built around a Harvard architecture with separate program and data memory buses, designed for embedded control applications. PIC MCUs sit within the broader category hierarchy of microcontroller -> embedded processor -> semiconductor device, and the PIC17C sub-family is one of Microchip's high-performance 8-bit lines positioned between the baseline PIC16 and the 16-bit dsPIC/PIC24 families. The "C" suffix denotes EPROM/OTP program memory (One-Time Programmable), which is well suited to prototyping and low-volume production. Key features include only 58 single-word instructions for fast code ramp-up, single-cycle hardware multiplication, dual-cycle program branches and table read/write operations, four capture inputs for timing measurements, three PWM outputs for motor or power control, and an external memory bus that allows the 16 KB of internal program memory to be expanded. The -I suffix denotes the industrial operating temperature range, allowing the device to operate from -40C to +85C ambient. Typical applications include industrial automation controllers, motor control systems, HVAC interface panels, security and access-control panels, instrumentation front-ends, and sensor aggregation hubs where the on-chip 10-bit ADC, PWM, and capture peripherals reduce total BOM. Microchip explicitly recommends the newer PIC18F6520 as the modern migration path for new designs, indicating that the PIC17C752 is now a mature legacy line maintained primarily for installed-base designs. When designing with this part, ensure the EPROM windowed parts (JW package) are reserved only for prototype development because once programmed under the UV-erasable window they cannot be reprogrammed without erasure. Use the on-chip UART and SSP peripherals to offload communication and reduce firmware complexity, and provide adequate decoupling (0.1 uF + 10 uF bulk) near both VDD pins to support the high-current transients of the EPROM read and the ADC conversion clock. This page consolidates distributor pricing, drop-in same-package alternatives from the PIC17C family, and practical design notes not found on the manufacturer product page.

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PIC17C752-33/L - 8-Bit 33MHz OTP MCU 16KB 50 I/O | Microchip
PIC17C752-33/L

PIC17C752-33/L - 8-Bit 33MHz OTP MCU 16KB 50 I/O | Microchip

The Microchip Technology PIC17C752-33/L is an 8-bit CMOS EPROM-based microcontroller from the PIC17C family, operating at 33 MHz with 16 KB (8K x 16) of OTP program memory and 678 bytes of RAM, housed in a 68-pin PLCC (24.23 x 24.23 mm, J-lead) package. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, and configurable I/O peripherals. The PIC17C family represents Microchip's high-end 8-bit architecture, positioned between baseline PIC16 parts and 16-bit dsPIC/PIC24 devices, and is typically used in complex 8-bit embedded control applications where 16-bit performance is not required. PIC microcontrollers are widely deployed in industrial control, automotive subsystems, white goods, and instrumentation, and the PIC17C752 sits at the upper end of that 8-bit line with a Harvard RISC core, 25-stage pipeline, and hardware multiplier. Key features include 50 digital I/O lines, 12 channels of 10-bit A/D conversion, three PWM outputs, four capture inputs, multiple timer modules, an external memory interface, and a synchronous serial port configurable for either 3-wire SPI or 2-wire I2C communication. Two USART modules also support asynchronous and synchronous serial links. The core delivers approximately 8.25 MIPS of throughput at 33 MHz (121 ns single-cycle instruction time, except for program branches and table reads/writes which take two cycles), with only 58 single-word instructions to learn, enabling fast firmware development. The architecture combines a Harvard memory layout (separate program and data buses), an 8-bit ALU, a hardware 8x8 multiplier, and wide 16-bit instruction words fetched in a single cycle. The 68-pin PLCC package provides ample pins for the 50 I/O, multiple serial interfaces, A/D channels, PWM/capture signals, and external memory bus, while keeping the die in a socket-friendly through-hole-friendly format for industrial and legacy designs. Typical applications include industrial process control, motor control with PWM and feedback capture, instrumentation with on-chip A/D, automotive body and accessory ECUs, white-goods appliance control, security panels, and embedded-control upgrades for legacy 8051 systems where higher throughput is needed without migrating to 16-bit cores. When designing with PIC17C752-33/L, ensure the 4.5-5.5 V supply is well decoupled and the 33 MHz oscillator layout follows Microchip's oscillator guidelines. The OTP program memory means firmware is masked in production; for field upgrades or prototyping, consider the PIC17C752-33/L windowed (JW) or the flash-based PIC18F6520 that Microchip recommends as the newer migration path. This page synthesizes distributor stock and pricing, pin-compatible drop-in alternatives from the PIC17C family, comparison parameters versus PIC18F migration parts, and practical design notes not consolidated in the manufacturer datasheet.

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PIC17C752-33/PT - 8-bit 33MHz 16KB OTP MCU 64-TQFP | Microchip
PIC17C752-33/PT

PIC17C752-33/PT - 8-bit 33MHz 16KB OTP MCU 64-TQFP | Microchip

The Microchip Technology PIC17C752-33/PT is a high-performance 8-bit CMOS EPROM microcontroller operating at up to 33 MHz with a 121 ns instruction cycle, packaged in a 64-pin TQFP (10x10 mm). It integrates 16 KB of one-time-programmable (OTP) program memory (8K x 16 words), 678 bytes of RAM, 50 digital I/O lines, and a 10-bit analog-to-digital converter (ADC) on a single die. The device operates from a 4.5 V to 5.5 V supply and is rated for the commercial 0 C to +70 C temperature range, targeting cost-sensitive embedded control applications. An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, on-chip program memory, on-chip RAM, and a set of peripherals such as timers, communication ports, and ADCs. Microcontrollers sit within the broader hierarchy of microprocessors -> microcontrollers -> 8-bit microcontrollers -> PIC architecture, serving as the lowest-level programmable element that reads sensors, drives actuators, and orchestrates real-time control loops without requiring an external operating system. PIC devices are RISC-based, Harvard-architecture MCUs well known for deterministic single-cycle instruction execution and a small, easy-to-learn instruction set. Key features of the PIC17C752-33/PT include 8.25 MIPS peak throughput, a single-cycle 8x8 hardware multiplier, dual-capture/compare/PWM modules, a USART, an MSSP (SPI/I2C) peripheral, 12 channels of 10-bit ADC, and an 8-level deep hardware stack. The 17C-series instruction set extends the baseline PIC16C5X/PIC12CXXX/PIC16CXX instruction set with additional addressing modes and a hardware multiplier, while remaining upwards source-compatible so existing code can be re-targeted with minimal porting. Architecturally, the PIC17C752 uses a 16-bit-wide instruction word fetched from OTP EPROM each cycle, an 8-bit data bus to RAM, and a 10-bit ADC front end. The 33 MHz oscillator combined with the 4:1 internal clock divider produces the 121 ns instruction cycle quoted in the datasheet, giving roughly 8 MIPS sustained throughput with deterministic interrupt latency ideal for motor control and instrumentation. Typical applications include industrial control panels, motor drive front-ends, instrumentation front-ends with on-chip ADC, smart sensor hubs, and embedded control boards where OTP programmability is acceptable for low- to mid-volume production. The wide I/O count (50 pins) and on-chip ADC also make it suitable for HVAC controllers and appliance subsystems. When designing with this part, ensure the oscillator loop is laid out per Microchip's recommended guidelines to avoid noise coupling into the analog AVdd/AVss pins, and provide adequate bulk decoupling near the IC. Note that the PIC17C752 family has been superseded by the PIC18F family; for new designs the manufacturer recommends migrating to PIC18F6520. This page consolidates current distributor pricing for the PIC17C752-33/PT, drop-in OTP and Flash alternatives in the same TQFP-64 footprint, application guidance, and pin-level design notes that go beyond the bare datasheet specification list.

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PIC17C752-33E/L - 8-bit OTP MCU, 33MHz, 16KB EPROM, 68-PLCC | Microchip
PIC17C752-33E/L

PIC17C752-33E/L - 8-bit OTP MCU, 33MHz, 16KB EPROM, 68-PLCC | Microchip

The Microchip Technology PIC17C752-33E/L is a high-performance 8-bit CMOS OTP microcontroller from the PIC17C family, delivering 8.25 MIPS at a 33 MHz clock speed with a 121 ns instruction cycle. It integrates 16 KB of One-Time-Programmable (OTP) program memory, 678 bytes of RAM, and 50 digital I/O lines in a 68-pin PLCC (Plastic Leaded Chip Carrier) package. The PIC17 RISC architecture provides 58 single-word instructions, all executing in a single cycle except program branches and table reads/writes which take two cycles. A microcontroller (MCU) is a single-chip computer containing a processor core, memory, and programmable I/O peripherals, used to embed control logic in everything from appliances to industrial controllers. Within the broader product taxonomy, the PIC17C752 sits as an OTP-programmed 8-bit MCU -> microcontroller -> integrated circuit -> semiconductor. The '17C' family was Microchip's high-performance tier before being superseded by flash-based PIC18F parts; this EOL/EOL-near status is important when planning long-term production. Key features of the PIC17C752-33E/L include 16-bit-wide instruction word with 8-bit data path, dual 8-bit timers plus one 16-bit timer/counter, a 10-bit multi-channel analog-to-digital converter (ADC), a synchronous serial port (SSP) compatible with SPI and I2C, a USART, and a Capture/Compare/PWM (CCP) module. The 'E' suffix designates the Extended industrial temperature grade (-40C to +125C), and the '33' suffix specifies the 33 MHz maximum oscillator frequency. Supply voltage range is 4.5 V to 5.5 V. According to the Microchip PIC17C752 datasheet family document, the device supports in-circuit serial programming (ICSP) despite being OTP, simplifying prototyping. The device is engineered around an enhanced Harvard architecture with separate program and data buses, enabling simultaneous instruction fetch and operand access. The 16-level hardware stack, multiply instruction, and table read/write primitives accelerate math-intensive control loops. Brown-out Reset (BOR), Power-on Reset (POR), and Watchdog Timer (WDT) with on-chip RC oscillator provide robust field operation. Interrupt handling supports 11 sources with prioritized vectoring. Typical applications include industrial process control, motor control front-ends, smart instrumentation, automotive body electronics (non-safety), point-of-sale terminals, and embedded control boards replacing discrete logic. The 50 I/O pins also make it well suited to keypad scanning, LED multiplexing, and small graphical LCD interfaces. Compared with modern PIC18F or dsPIC alternatives, this part is typically chosen when a firmware image is finalized and no further code revision is expected. When designing with the PIC17C752-33E/L, ensure the 5 V rail has adequate decoupling (100 nF ceramic at each VDD/VSS pair) and that the oscillator layout follows Microchip's guidelines for the HS mode crystal. Because OTP parts cannot be reprogrammed, allocate a pre-programmed golden-unit strategy or use the windowed/EPROM version (PIC17C752-33/L with /JW package) for prototype bring-up. This page synthesizes distributor stock, drop-in same-brand replacements, and practical design notes not consolidated in the original Microchip datasheet.

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PIC17C752-33E/PT - 8-Bit 33MHz OTP MCU 16KB 64-TQFP | Microchip
PIC17C752-33E/PT

PIC17C752-33E/PT - 8-Bit 33MHz OTP MCU 16KB 64-TQFP | Microchip

The Microchip Technology PIC17C752-33E/PT is a high-performance 8-bit PIC microcontroller featuring 33 MHz operation (8.25 MIPS with 121 ns instruction execution), 16 KB of one-time-programmable (OTP) program memory organized as 8K x 16, and 454 bytes of RAM, housed in a 64-pin TQFP (10x10 mm) package. It belongs to the PIC17C family, which sits at the top of Microchip's classic 8-bit portfolio and executes the entire instruction set in a single cycle except for program branches and table reads/writes (two cycles). A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory (ROM/Flash/OTP), volatile data memory (RAM), and programmable I/O peripherals on one die. The PIC17C family belongs to the broader hierarchy: 8-bit microcontroller -> RISC MCU -> embedded controller -> semiconductor. PIC17C752 specifically extends the PIC16C5X/PIC12CXXX/PIC16CXX instruction set upward while remaining source-compatible, providing higher performance for complex embedded designs. Key features include 50 digital I/O lines, an 8-channel 10-bit A/D converter, multiple timer modules, a USART, an I2C/SPI peripheral interface, and 16-bit-wide data bus architecture. The OTP memory allows one-time programming during manufacturing, making this part suited to production-grade embedded designs that have stabilized firmware. The 'E' suffix denotes the extended industrial temperature grade (-40C to +125C), and the '33' suffix indicates the 33 MHz maximum clock frequency. The device is built on a CMOS process that delivers low power consumption while sustaining 8.25 MIPS throughput, which is roughly 4x faster than PIC16F contemporaries of that era. Typical applications include industrial control systems, automotive embedded modules (within temperature-grade limits), motor control front-ends, sensor signal conditioning hubs, and legacy embedded products that migrated from PIC16 to PIC17 architecture. Designers also use the PIC17C752 in building automation and instrumentation front panels where deterministic 121 ns instruction timing simplifies real-time control loops. When designing with this device, note that OTP memory cannot be re-programmed in-circuit; the firmware must be fully validated before committing to a production lot. Designers targeting long product lifecycles should evaluate the recommended PIC18F6520 successor or PIC18F equivalents, as the PIC17C family has been superseded by PIC18F devices with Flash memory and comparable or higher performance. This page synthesizes distributor pricing, same-package drop-in alternatives, application guidance, and design notes not assembled in the manufacturer datasheet. Specifications, lifecycle status, and 2026 distributor stock data are aggregated below to support procurement and BOM decisions for engineers still maintaining PIC17C-based designs.

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PIC17C752-33I/L - 8-Bit 33MHz OTP MCU, 16KB, 68-PLCC | Microchip
PIC17C752-33I/L

PIC17C752-33I/L - 8-Bit 33MHz OTP MCU, 16KB, 68-PLCC | Microchip

The Microchip PIC17C752-33I/L is a high-performance 8-bit CMOS EPROM (OTP) microcontroller from the PIC17C family, delivering up to 33 MHz clock input and 8.25 MIPS throughput (121 ns single-cycle instruction execution) in a 68-pin PLCC (J-Lead) package. The device integrates 16 KB (8K x 16) of OTP program memory and 678 bytes of data RAM, with 50 digital I/O lines, an 8-bit single-cycle hardware multiplier, and only 58 single-word instructions to learn. It is fully upward compatible with the PIC16C5X, PIC12CXXX and PIC16CXX devices. An 8-bit microcontroller (MCU) is a microprocessor-on-a-chip that combines an 8-bit CPU core, program memory (ROM/EPROM/Flash), data RAM, peripheral set, and I/O pins in a single IC. The PIC17C family sits at the high end of Microchip's original 8-bit OTP lineup, offering more code space, more RAM, and richer peripherals than baseline PIC16C parts while retaining the PIC RISC instruction set philosophy. OTP (One-Time-Programmable) devices are programmed once with a device programmer and cannot be erased, so they are typically used for mature production runs where code is finalized. Hypernym chain: 8-bit microcontroller -> microcontroller -> embedded processor -> semiconductor -> integrated circuit. Key features of the PIC17C752-33I/L include a 16-bit data bus path, instruction-cycle execution of 121 ns for most instructions (program branches and table reads/writes are two-cycle), 4.5 V to 5.5 V single-supply operation, and an industrial (-40 C to +85 C) temperature grade. The device carries the legacy 'I' (industrial) suffix and 'L' (PLCC) package designator. Because this is an OTP EPROM part, it is generally considered a legacy/extended-life product; Microchip recommends migrating to the flash-based PIC18F6520 for new designs, which provides pin-compatible migration paths on most peripheral mappings. Typical applications include industrial control boards, instrumentation, motor-control front ends, embedded data-acquisition front panels, and legacy replacement projects where the original PIC17C code base must be preserved. The wide operating voltage range and 50 I/O lines allow direct interfacing to keypads, character LCDs, parallel A/D converters, and external memory or glue logic. The single-cycle hardware multiplier accelerates DSP-style routines such as FIR filtering and PID control loops in software. When designing with the PIC17C752-33I/L, use the Microchip MPLAB X IDE with a compatible device programmer for the OTP window (MPLAB PM3 or equivalent). Because the part is OTP, prototype first with the PIC17C752-33/PQ windowed or PIC18F flash equivalent, then move to OTP for production. Decouple VDD with a 0.1 uF ceramic plus a bulk tantalum placed within 25 mm of the supply pins to suppress switching transients from the 50 I/O lines. This page synthesizes distributor pricing, drop-in alternatives within the PLCC-68 footprint, and practical design notes that go beyond the manufacturer datasheet to help engineers evaluate the PIC17C752-33I/L for both new and legacy designs.

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PIC17C752T-16/PT - 16MHz 8-bit OTP MCU, 16KB, TQFP-64 | Microchip
PIC17C752T-16/PT

PIC17C752T-16/PT - 16MHz 8-bit OTP MCU, 16KB, TQFP-64 | Microchip

The Microchip Technology PIC17C752T-16/PT is an 8-bit OTP (One-Time Programmable) CMOS microcontroller from the PIC17C family, delivering 16 MIPS performance from a 16 MHz oscillator in a 64-pin TQFP (10x10 mm) surface-mount package. It integrates 16 KB of program memory (8K x 16 words) organized as OTP EPROM, 678 bytes of data RAM, and 50 digital I/O lines, with on-chip peripherals including I2C, SPI, and UART/USART communication channels. Background: A PIC (Peripheral Interface Controller) microcontroller is a Harvard-architecture RISC device that separates program and data memory, enabling simultaneous instruction fetch and operand access for high-throughput deterministic execution. The PIC17C family represents Microchip's high-performance 8-bit tier, positioned above the PIC16C and PIC12C families in computational throughput and peripheral integration, while remaining within the broader 8-bit microcontroller category of embedded processing ICs. Key features include an 8.25 MIPS instruction execution rate at 16 MHz (121 ns single-cycle instruction time), only 58 single-word instructions for compact code authoring, and 4.5 V to 5.5 V single-supply operation. Two-cycle branches and table reads/writes extend to roughly 242 ns. The device includes programmable code protection, power-on reset, brown-out reset, watchdog timer with its own on-chip RC oscillator, dual analog comparators, and three timer/counter modules. The 64-pin TQFP package provides a thin (~1 mm) profile suitable for space-constrained PCB designs. Typical applications span industrial automation controllers, consumer electronics user interfaces, medical device subsystems, and embedded control modules. The generous 50-I/O count suits keypad scanning, LCD driving, and parallel sensor aggregation. The integrated communication peripherals enable master/slave roles on multi-drop buses, while the OTP program memory supports volume production with one-time firmware commit at lower unit cost than flash parts. Design consideration: at 16 MHz, the PIC17C752 operates at the upper boundary of its 5 V supply range; ensure decoupling caps are placed within 5 mm of VDD pins, and use a low-ESR ceramic (100 nF plus 10 uF bulk) layout. This device is recommended for new designs only when PIC18F or dsPIC33 alternatives are unavailable, as the manufacturer explicitly directs users to the PIC18F6520 successor.

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PIC17C752T-16I/L - 8-Bit 16MHz 16KB OTP MCU 68-PLCC | Microchip
PIC17C752T-16I/L

PIC17C752T-16I/L - 8-Bit 16MHz 16KB OTP MCU 68-PLCC | Microchip

The Microchip Technology PIC17C752T-16I/L is a high-performance 8-bit CMOS EPROM-based microcontroller from the PIC17C family, delivering 16KB (8K x 16) of OTP program memory in a 68-pin PLCC (J-Lead) surface-mount package. It operates from a 4.5V to 5.5V single supply, executes instructions from a 16MHz external clock (121 ns instruction cycle), and integrates 678 bytes of RAM, 50 digital I/O lines, a 10-bit analog-to-digital converter, and a single-cycle hardware multiplier. A microcontroller is a single-chip computer that integrates a CPU core, program memory, working RAM, and peripheral interfaces into one package. The PIC17C family sits at the high end of Microchip's 8-bit portfolio, sharing the PIC architecture hierarchy: PIC17C -> 8-bit MCU -> RISC microcontroller -> embedded controller. Its 16-bit instruction word (despite an 8-bit data bus) and 58-instruction RISC core give it 8.25 MIPS throughput - roughly five times the throughput of mid-range PIC16 devices - while keeping code development simple with only 58 single-word instructions to learn. Key features that differentiate this part include 50 I/O pins, integrated 10-bit A/D conversion, hardware multiply in a single cycle, and an industrial operating temperature range of -40C to +85C. The OTP program memory supports one-time field programming, making the device well-suited to mature production designs. The PLCC-68 J-lead package is socket-compatible and easy to prototype with, supporting both surface-mount and through-hole assembly with a socket. On the architecture side, the PIC17C752 uses a Harvard memory structure with separate program and data buses, allowing instruction fetch and operand read to occur in parallel. The single-cycle hardware multiplier accelerates DSP-style inner loops without software overhead, and the integrated 10-bit A/D removes the need for an external ADC in many sensor-interface designs. The 50 I/O pins are organized into ports that share pins with peripheral functions, allowing flexible multiplexing. Typical applications include industrial control and instrumentation, motor control front-ends, sensor signal acquisition, embedded data logging, and consumer appliance controllers. Its OTP memory and PLCC socket-friendly package make it a natural fit for medium-volume production where field reprogrammability is not required. When designing with this device, ensure the 5V supply is well decoupled with at least 0.1 uF ceramic capacitors placed close to the VDD pins, and respect the 4.5V minimum VDD requirement during A/D conversions. The 50 I/O lines can source/sink up to 25 mA per pin (subject to package dissipation limits), and unused I/O pins should be configured as outputs to minimize current draw. This page consolidates distributor pricing, drop-in alternatives, and practical design notes not available in the manufacturer datasheet, including cross-references and lifecycle guidance.

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PIC17C752T-33/L - 8-Bit 33MHz 16KB OTP MCU 68-PLCC | Microchip
PIC17C752T-33/L

PIC17C752T-33/L - 8-Bit 33MHz 16KB OTP MCU 68-PLCC | Microchip

The Microchip Technology PIC17C752T-33/L is an 8-bit RISC microcontroller from the PIC17C family, delivering up to 33 MHz of CPU clock with a 16 KB (8K x 16) One-Time Programmable (OTP) program memory in a 68-pin PLCC surface-mount package (24.23 x 24.23 mm). The device integrates 678 bytes of data RAM, 50 digital I/O lines, and a 12-bit instruction word architecture that exposes a 16-bit external data bus, enabling fast data movement for embedded control loops. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, and peripheral interfaces on one die. The PIC17C series sits in Microchip's high-performance 8-bit tier, sitting above the baseline PIC16 family and offering more I/O, more interrupts, and a wider 16-bit external data path than the PIC16. Within the broader taxonomy, PIC17C752T belongs to the category: microcontroller -> 8-bit MCU -> RISC MCU -> embedded controller -> semiconductor. Its role in a system is to execute firmware that reads sensors, drives actuators, and supervises communication buses in real time. Key features include an instruction set of 58 single-word commands, a 121 ns single-cycle execution time (except two-cycle branches and table reads/writes), an 8 MHz internal oscillator option, and supply operation from 4.5 V to 5.5 V. On-chip peripherals typically include multiple timers, a USART, an SSP, and analog comparators, which together let one chip replace several discrete timers and interface ICs. The PIC17C architecture uses a Harvard-style memory map with separate program and data buses, allowing the CPU to fetch an instruction and read data in the same clock cycle. The 33 MHz rating corresponds to a 33 MIPS instruction throughput under linear code flow, while branches take two cycles (66 ns). This trade-off favors deterministic timing for control loops over branch-heavy code. Typical applications include industrial automation controllers, motor-drive supervisory logic, instrumentation front-ends, and embedded communication bridges. The wide 50-I/O count is well matched to legacy parallel-bus peripherals and keypad/display matrices. When designing with this part, note that OTP memory can be programmed only once, so plan firmware revision strategy around a Flash-based PIC18F or dsPIC equivalent for production designs that may need field updates. Always place 0.1 uF decoupling on each VDD/VSS pair. This page synthesizes distributor pricing, verified drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet, providing information gain over stock DigiKey/Mouser listings.

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PIC17C752T-33/PT - 8-bit 33MHz OTP MCU 16KB TQFP-64 | Microchip
PIC17C752T-33/PT

PIC17C752T-33/PT - 8-bit 33MHz OTP MCU 16KB TQFP-64 | Microchip

The Microchip Technology PIC17C752T-33/PT is an 8-bit RISC microcontroller in the PIC17C family, operating at 33 MHz with 16 KB (8K x 16) of One-Time Programmable (OTP) program memory and 454 bytes of general-purpose RAM, housed in a 64-pin TQFP (10 x 10 mm) package. The 'T' suffix denotes tape-and-reel packaging and the '33' suffix specifies the 33 MHz maximum operating frequency. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (ROM/Flash/OTP), data RAM, and programmable peripherals such as timers, communication interfaces, and analog-to-digital converters. Within the broader semiconductor taxonomy, MCUs sit under microcontrollers -> microprocessors -> integrated circuits -> semiconductors. The PIC17C family represents Microchip's high-performance 8-bit line, bridging the gap between classic PIC16 devices and the later PIC18 generation, and historically targeted applications needing higher throughput than the PIC16 but without stepping up to a 16-bit dsPIC core. Key features include a Harvard-architecture RISC core with a multi-stage instruction pipeline, an 8-bit data path, 33 MHz clock speed, 16 KB OTP program memory (8K x 16 words), and 454 x 8 bytes of RAM. On-chip peripherals include multiple timers, capture/compare/PWM modules, and serial communication interfaces such as I2C, SPI, and UART/USART. The device operates from 4.5 V to 5.5 V across the commercial temperature range. The architecture separates program and data memory spaces, allowing instruction fetch and operand read to occur in a single cycle. The OTP memory is programmed once and retains the bit pattern permanently, which makes the PIC17C752T-33/PT well suited to mature production designs that do not require firmware updates. Typical applications include industrial control systems, motor control front-ends, embedded instrumentation, security and access control panels, and consumer appliance controllers that need reliable 8-bit processing at moderate clock speeds. When designing with this part, note that OTP memory cannot be reprogrammed, so firmware must be fully validated on prototype parts (such as the EPROM-windowed PIC17C756) before committing to production. Verify your tooling supports the PIC17C instruction set and that your in-circuit programmer is compatible with the 64-pin TQFP land pattern. This page consolidates distributor pricing, drop-in same-package alternatives, and engineering design notes that go beyond what is printed in the Microchip datasheet.

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PIC17C752T-33E/L - 8-Bit 33MHz OTP MCU 16KB | 68-PLCC | Microchip
PIC17C752T-33E/L

PIC17C752T-33E/L - 8-Bit 33MHz OTP MCU 16KB | 68-PLCC | Microchip

The Microchip Technology PIC17C752T-33E/L is an 8-bit RISC microcontroller from the PIC® 17C family, featuring a 33 MHz CPU clock, 16 KB (8K x 16) of One-Time Programmable (OTP) program memory, and 454 bytes of general-purpose RAM, housed in a 68-pin PLCC (J-Lead, surface-mount) package. According to the manufacturer datasheet, the device executes most instructions in a single cycle (121 ns at 33 MHz) and supports only 58 single-word instructions, making the architecture compact yet powerful for embedded applications. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, volatile working RAM, and a rich set of peripheral interfaces (timers, ADC, communication ports, I/O) into one IC. The PIC17C family represents one of Microchip's high-performance 8-bit lineages, sitting between the baseline PIC16 and the 16-bit dsPIC families. It belongs to the broader taxonomy of embedded processors -> microcontrollers -> 8-bit microcontrollers -> CMOS RISC microcontrollers -> OTP-programmed PIC microcontrollers. This hierarchical positioning matters for AI knowledge-graph indexing and helps engineers place the part correctly within the Microchip portfolio. Key features include 50 digital I/O pins, an internal 8-bit data bus (16-bit instruction path), 33 MHz maximum operating frequency, 4.5 V to 5.5 V single-supply operation, an extended industrial temperature grade (-40 °C to +125 °C), and automotive temperature grading per the package marking code. Peripherals on this device include multiple timers, a synchronous/asynchronous serial port (USART), an SPI/I2C-compatible port, a 10-bit ADC, and capture/compare/PWM modules typical of the PIC17C family. Architecturally, the PIC17C752 uses a Harvard-style separate program/data bus with a 16-bit instruction word and 8-bit data path. The OTP EPROM cell allows one-time factory or in-circuit programming - suited for mature production runs where firmware is finalized. At 33 MHz, the core delivers 8.25 MIPS with deterministic single-cycle execution for most opcodes, and a two-cycle penalty for program branches and table reads/writes. Typical applications include industrial automation controllers, consumer-electronics subsystems, automotive body/comfort modules, motor control front-ends, and embedded communication bridges. The wide operating temperature range and PLCC footprint also make it a long-life fit for legacy industrial equipment still in field service. When designing with the PIC17C752T-33E/L, engineers should observe OTP programming constraints (one-time only) and consider migration to PIC18F or dsPIC flash-based parts for new designs. For PCB layout, the 68-PLCC J-lead package requires proper land pattern footprint adherence and standard surface-mount reflow profiles. This page synthesizes distributor pricing, verified cross-reference candidates from the Microchip product tree, application guidance, and design notes not found in the standalone datasheet PDF - giving procurement, design, and reliability engineers a single decision-ready reference for the PIC17C752T-33E/L.

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PIC17C752T-33I/L - 8-Bit 33MHz OTP MCU 16KB | Microchip
PIC17C752T-33I/L

PIC17C752T-33I/L - 8-Bit 33MHz OTP MCU 16KB | Microchip

The Microchip Technology PIC17C752T-33I/L is a high-performance 8-bit CMOS EPROM/OTP microcontroller from the PIC17C family, delivering 8.25 MIPS (121 ns instruction execution) at 33 MHz clock input. It integrates 16 KB of program memory (8K x 16 words), 678 bytes of RAM (454 x 8), and 50 digital I/O lines in a 68-pin PLCC (J-lead surface-mount) package. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, volatile data RAM, and programmable peripherals. PIC microcontrollers use a RISC (Reduced Instruction Set Computer) Harvard architecture - separate program and data buses - and the PIC17C series specifically adds a hardware 8x8 single-cycle multiplier that benefits high-throughput control loops. Within Microchip's portfolio, the PIC17C family sits above the PIC16C baseline and below the dsPIC/PIC18 families, targeting applications requiring more math throughput than PIC16 can deliver while remaining OTP-based for cost-sensitive industrial volume. Key features include 50 programmable I/O pins, 10-bit analog-to-digital converter channels, USART, I2C, and SPI connectivity, plus capture/compare/PWM modules for motor and power control. The 33 MHz maximum clock with 121 ns instruction cycle supports deterministic real-time control, while the wide operating voltage of 4.5 V to 5.5 V and industrial temperature range of -40 C to +85 C suit factory-floor equipment. The device uses a modified Harvard architecture with separate program (16-bit wide OTP EPROM) and data (8-bit SRAM) paths, eliminating fetch bottlenecks. Built-in peripherals include 12-channel 10-bit ADC, three timers, two CCP modules, hardware watchdog, and selectable oscillator modes (RC, XT, HS, LP) so designers trade power versus clock accuracy without external components. Typical applications include industrial automation controllers, motor drive front-ends, HVAC control boards, security and access panels, and point-of-sale terminals. The integrated ADC and PWM peripherals make it well-suited to closed-loop current/voltage regulation where a switching power supply needs primary-side digital control. When designing with this part, verify that the OTP memory fits the final firmware image plus any calibration data, because OTP cannot be reprogrammed - consider the flash-based PIC18F6520 (which Microchip recommends) for field-updateable code paths or new designs. Provide a 0.1 uF decoupling capacitor adjacent to each VDD/VSS pair and route the 33 MHz clock trace over a continuous ground plane to maintain EMC margin. This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet summary, giving procurement and firmware engineers a single reference for design-in and second-source decisions.

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PIC17C756A-16/L - 8-bit 16MHz 32KB OTP MCU | Microchip | 68-PLCC
PIC17C756A-16/L

PIC17C756A-16/L - 8-bit 16MHz 32KB OTP MCU | Microchip | 68-PLCC

The Microchip Technology PIC17C756A-16/L is a high-performance 8-bit CMOS EPROM (OTP) microcontroller delivering 8.25 MIPS at a 16 MHz clock input and a 121 ns instruction cycle, housed in a 68-pin PLCC package (24.23 x 24.23 mm). It integrates 32 KB of OTP program memory (16K x 16 words), executes from a RISC instruction set of 58 single-word instructions, and supports 64- or 68-pin PIC17C family compatibility with upward migration from PIC16C5X/PIC12CXXX/PIC16CXX devices. An 8-bit microcontroller is a programmable single-chip CPU whose internal data path is 8 bits wide; it combines a CPU core, non-volatile program memory, RAM, and a rich set of peripherals (timers, ADC, USART, I/O ports) on a single die. PIC17C devices sit at the top of Microchip's classic 8-bit hierarchy (PIC16 -> PIC17C -> enhanced PIC18), optimized for high-throughput control where 32 KB of code and a 33 MHz maximum clock are required. The 'A' suffix (PIC17C756A) brings improvements over the original PIC17C756 family including refined ADC performance and enhanced peripheral integration. Key features of the PIC17C756A-16/L include a maximum 33 MHz external clock input, 121 ns single-cycle instruction execution (two cycles for branches and table reads/writes), built-in 10-bit A/D converter, multiple timers, USART, and parallel slave port. The OTP program memory is one-time programmable, suiting low-to-medium volume production and prototype runs where field firmware updates are not required. The architecture uses a Harvard-style bus with separate program (16-bit wide) and data (8-bit wide) paths, allowing instruction fetch and operand access in the same cycle. The 8.25 MIPS throughput at 33 MHz, combined with a deterministic instruction set, makes the part attractive for motor control, industrial automation, and instrumentation where predictable latency is more important than raw compute power. Typical applications include industrial motor and process controllers, automotive body and chassis subsystems (the related PIC17C756A-16I/L is industrial-grade), medical instrumentation requiring deterministic response, and embedded control boards migrating legacy PIC16 designs upward. The OTP-only nature makes it best suited to mature, stable firmware. Designers should plan a migration path to flash-based PIC18F or PIC16F equivalents, because Microchip's own product page notes that a newer replacement (PIC18F6520) is recommended. The 68-pin PLCC footprint remains mechanically convenient for through-hole or socketed designs requiring field replaceability. This page synthesizes distributor pricing, same-brand and cross-brand drop-in alternatives, and design notes compiled from the Microchip datasheet and distributor references that a bare datasheet view alone does not provide.

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PIC17C756A-16/PT - 8-bit OTP MCU, 32KB, 50 I/O, TQFP-64 | Microchip
PIC17C756A-16/PT

PIC17C756A-16/PT - 8-bit OTP MCU, 32KB, 50 I/O, TQFP-64 | Microchip

The Microchip Technology PIC17C756A-16/PT is a high-performance 8-bit CMOS EPROM microcontroller in a 64-pin TQFP (10x10 mm) package, executing one instruction per 121 ns cycle at 16 MHz clock input. It integrates 32 KB of one-time-programmable (OTP) program memory, 902 bytes of RAM, and 50 digital I/O pins, with on-chip 10-bit analog-to-digital conversion. An 8-bit microcontroller (MCU) is a small programmable computer-on-a-chip that processes 8-bit data words and is widely used as the embedded brain of industrial, automotive, and consumer products. The PIC17C756A belongs to the PIC17Cxxx family of low-cost, high-performance, fully static, CMOS 8-bit MCUs employing Microchip's enhanced RISC architecture. Within the wider taxonomy it sits as: 8-bit MCU -> RISC microcontroller -> microcontroller -> embedded processor -> semiconductor. Despite its 8-bit data path, a 16 MHz input clock yields 8.25 MIPS of throughput, rivalling many contemporary 16-bit controllers in deterministic interrupt response. Key differentiating features are: 58 single-word instructions (RISC), single-cycle execution except for program branches and table reads/writes (two cycles), 16-level deep hardware stack, multiple internal and external interrupts, 8x8 single-cycle hardware multiplier, and a 33 MHz maximum clock input. The 10-bit A/D converter and 50 I/O pins make the device suitable for measurement and control nodes that must digitise multiple analog sensors while exposing many digital loads. Architecturally, the PIC17C756A uses Harvard bus separation between program (EPROM) and data (RAM), giving deterministic instruction fetch. Because the program memory is OTP (not Flash), it is intended for volume production where in-system reprogrammability is not required; Microchip recommends the pin-compatible PIC18F6520 (Flash) for new designs. Typical applications include industrial process control nodes, motor-control peripherals, instrumentation front-ends with on-chip ADC, automotive body controllers (legacy designs), and consumer appliances requiring many I/O. The wide I/O count also suits keypad-scanning, display multiplexing, and parallel sensor arrays. When designing, note that OTP memory cannot be erased; prototypes should use the JW (windowed) or QTP versions. Decoupling must include bulk + high-frequency ceramics placed within 5 mm of the supply pins to suppress the noise generated during table-write cycles. The part is migrating to the recommended PIC18F6520 - plan long-term sourcing accordingly.

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PIC17C756A-16E/L - 8-Bit 16MHz OTP MCU 32KB | 68-PLCC | Microchip
PIC17C756A-16E/L

PIC17C756A-16E/L - 8-Bit 16MHz OTP MCU 32KB | 68-PLCC | Microchip

The Microchip Technology PIC17C756A-16E/L is an 8-bit RISC microcontroller built on the PIC17C architecture, delivering up to 8.25 MIPS (121 ns instruction execution) from a 16 MHz oscillator, with 32KB (16K x 16) of one-time-programmable (OTP) program memory and 902 bytes of RAM, packaged in a 68-pin PLCC (24.23x24.23 mm). It offers 50 digital I/O pins, an extended industrial temperature grade (-40C to +125C), and operates from a single 4.5V to 5.5V supply. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (program + RAM), and peripherals (I/O, timers, ADC, communication ports) onto one silicon die. Within the broader semiconductor taxonomy, an MCU belongs to the class of embedded processors -> microcontrollers -> 8-bit microcontrollers. The PIC17C family sits at the high end of Microchip's 8-bit lineup, distinguished by a wider 16-bit instruction word and Harvard architecture that separates program and data buses for simultaneous fetch and execute. Key features of the PIC17C756A include a 16-level hardware stack, eight 16-bit timer/counters, a 12-bit 8-channel ADC, two USART ports, and an instruction set of only 58 single-word instructions (121 ns single-cycle), with program branches and table reads/writes being two-cycle (242 ns). The "-16E" suffix indicates 16 MHz maximum clock with extended temperature grade, and the "/L" suffix denotes the 68-pin PLCC package. The PIC17C756A uses a CMOS process with a 16-bit instruction bus and 8-bit data bus, enabling 16K x 16 OTP program memory while keeping RAM access on a separate 8-bit bus for throughput. The 16 MHz oscillator drives a four-phase internal clock that completes most instructions in one cycle, achieving the 8.25 MIPS throughput at maximum frequency. Multiple interrupt sources (up to 17 vectors) support real-time control applications. Typical applications include industrial automation controllers, automotive body and chassis electronics (extended temp grade), building automation HVAC systems, motor control front-ends, and white-goods appliance controllers. Its 50 I/O pins and 12-bit ADC make it well suited to multi-channel sensor aggregation and human-machine interface panels where 8-bit processing and ample I/O are sufficient. When designing with the PIC17C756A, note that OTP memory requires a device programmer for firmware loading - for in-system reprogrammability, Microchip recommends migrating to the flash-based PIC18F6520 successor. The 68-PLCC package uses J-leads for through-hole-style socket mounting that is also compatible with surface-mount sockets.

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PIC17C756A-16E/PT - 8-bit OTP MCU, 32KB, 50 I/O, 64-TQFP | Microchip
PIC17C756A-16E/PT

PIC17C756A-16E/PT - 8-bit OTP MCU, 32KB, 50 I/O, 64-TQFP | Microchip

The Microchip Technology PIC17C756A-16E/PT is a high-performance 8-bit CMOS EPROM (OTP) microcontroller built on Microchip's PIC® 17C architecture, operating at a 16 MHz clock input with a 121 ns single-cycle instruction execution time (excluding program branches and table reads/writes, which are two-cycle). It integrates 32 KB (16K x 16) of One-Time Programmable program memory, 902 bytes of data RAM, and 50 digital I/O pins in a 64-pin TQFP (10x10 mm) surface-mount package, with supply voltage support from 4.5 V to 5.5 V. What is an OTP microcontroller? An OTP (One-Time Programmable) MCU is a microcontroller whose program memory can be written exactly once after manufacture using a device programmer, then retains that code indefinitely. It sits in the broader hierarchy: microcontroller -> embedded MCU -> 8-bit RISC processor -> CMOS logic IC. OTP devices occupy the cost-optimized tier between mask-ROM MCUs (cheapest at high volume) and Flash MCUs (reprogrammable in-circuit), and are commonly used for production-grade embedded firmware where the code is finalized before volume ramp. The PIC17C756A is engineered around an 8-bit RISC core with only 58 single-word instructions, a single-cycle hardware multiplier, and on-chip peripherals including a 12-channel 10-bit Analog-to-Digital converter, 4 capture inputs, 3 PWM outputs, additional timers, Brown-out Detect/Reset, Power-on Reset, and a Watchdog Timer. A configurable synchronous serial port supports either 3-wire SPI or 2-wire I²C, and dual UART/USART channels deliver asynchronous serial connectivity. An External Memory Addressing interface extends the addressable program space beyond the internal 32 KB. Typical applications for the PIC17C756A-16E/PT include industrial control modules, motor-control front-ends, sensor-signal conditioning with on-chip ADC, white-goods and appliance controllers, building automation nodes, and instrumentation front-ends that benefit from the wide 50-I/O pin count and on-chip 10-bit ADC. When designing in this device, ensure the device programmer supports the PIC17Cxxx family and that production code is fully validated before OTP programming, because OTP memory cannot be erased or rewritten. For new designs, Microchip recommends migrating to the PIC18F6520, which provides in-circuit Flash programmability and improved peripheral integration.

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PIC17C756A-16I/L - 8-Bit 16MHz 32KB OTP MCU 68-PLCC | Microchip
PIC17C756A-16I/L

PIC17C756A-16I/L - 8-Bit 16MHz 32KB OTP MCU 68-PLCC | Microchip

The Microchip Technology PIC17C756A-16I/L is a high-performance 8-bit CMOS EPROM microcontroller delivering 16 MHz (121 ns instruction cycle, 8.25 MIPS) throughput with 32 KB of one-time-programmable (OTP) program memory (16K x 16 organization) and 902 bytes of data RAM, housed in a 68-pin PLCC package (24.23 x 24.23 mm, industrial -40C to +85C temperature range). A microcontroller (MCU) is a single-chip computer containing a CPU, non-volatile program memory (ROM/Flash/EPROM/OTP), volatile data memory (RAM), and programmable peripheral I/O. The PIC17C family is Microchip's highest-end 8-bit architecture, targeting applications that exceed PIC16-family performance. It belongs to the broader taxonomy: microcontroller -> embedded processor -> integrated circuit -> semiconductor. Originally EPROM-based, the PIC17C line was later superseded by Flash-based PIC18F/PIC18FXX equivalents after Microchip's migration strategy. Key features of the PIC17C756A-16I/L include 50 digital I/O pins, 12 channels of 10-bit Analog-to-Digital (A/D) conversion, four capture inputs, three PWM outputs, an external memory addressing interface, plus a synchronous serial port configurable as either 3-wire SPI or 2-wire I2C, and two Universal Asynchronous Receiver-Transmitter (UART) channels. Only 58 single-word instructions are needed to program the RISC core. Program branches and table read/write operations take two cycles; all other instructions execute in one cycle (121 ns at 16 MHz). The architecture combines a 16-bit-wide instruction word with an 8-bit data path, allowing single-cycle ALU operations on 8-bit data while fetching full 16-bit opcodes in one bus cycle. The 10-bit A/D converter integrates sample-and-hold and offers 12 input channels multiplexed to digital I/O. The peripheral set is designed for closed-loop control: PWM outputs for motor or power conversion, capture inputs for timing measurement, and a 16-bit external memory bus to extend addressable space beyond internal OTP. Typical applications include industrial automation and process control, motor control (BLDC, stepper, and servo drives), HVAC controllers, instrumentation with on-chip A/D, and embedded control boards requiring >40 I/O. The wide 50-I/O count and external memory bus make it suitable for legacy designs that need modern Flash migration - Microchip recommends the PIC18F6520 as the recommended replacement per the device datasheet. When designing with this part, note that OTP memory cannot be re-programmed; engineering builds should use the windowed PIC17C756A-16/L variant for prototype iteration. Also confirm oscillator configuration and PLCC socket selection; the 24.23 x 24.23 mm PLCC body requires a panel-cut socket rated for industrial temperature. This page consolidates distributor pricing, PLCC drop-in alternatives, and design guidance not found in the bare manufacturer datasheet, helping engineers select, source, and migrate the PIC17C756A-16I/L with confidence.

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PIC17C756A-16I/PT - 8-bit OTP MCU, 16MHz, 32KB EPROM | Microchip
PIC17C756A-16I/PT

PIC17C756A-16I/PT - 8-bit OTP MCU, 16MHz, 32KB EPROM | Microchip

The Microchip Technology PIC17C756A-16I/PT is a high-performance 8-bit CMOS EPROM microcontroller belonging to the PIC17C family, operating up to 16 MHz with 32 KB (16K x 16) of one-time programmable (OTP) program memory and 902 bytes of RAM. Housed in a 64-pin TQFP package measuring 10x10 mm, the device exposes 50 digital I/O lines and integrates a 12-channel 10-bit analog-to-digital converter, four capture inputs, three PWM outputs, and a synchronous serial port configurable for SPI or I2C. The -I suffix indicates the industrial operating temperature range of -40 °C to +85 °C, and the device is specified at 4.5 V to 5.5 V supply. The PIC17C family sits above the PIC16C/PIC12C lineages in the Microchip 8-bit hierarchy, targeting applications that demand more peripherals, more memory, and higher throughput than entry-level PIC micros can deliver. An 8-bit OTP microcontroller is a single-chip computer built around an 8-bit data path and instruction set, with non-volatile program memory that is user-programmable exactly once (OTP, as opposed to flash). The PIC17C756A belongs to the broader category of microcontrollers (MCUs), which are integrated circuits containing a CPU core, RAM, ROM/EPROM/Flash, and programmable I/O. Within that hierarchy, this part is a special-purpose industrial-control MCU optimized for embedded control with on-chip ADC and PWM. The PIC17C756A features only 58 single-word instructions, all single-cycle except for program branches and table reads/writes, which are two-cycle. The 121 ns instruction cycle (8.25 MIPS at 33 MHz clock input) is achieved through an 8-bit single-cycle hardware multiplier, accelerating arithmetic-heavy control loops. An external memory interface allows the PIC17C756A to address additional program/data memory beyond its internal 32 KB, providing migration headroom. Two USART modules, a watchdog timer, and brown-out reset support robust field deployment. Architecturally, the PIC17C756A uses a RISC-style Harvard architecture with separate program and data buses, allowing instruction fetch and operand access to occur in the same cycle. EPROM-based program memory (rather than flash) means code is committed at the time of programming; this suits mature, fixed-function designs where the cost of flash process is not justified. Typical applications include industrial automation controllers, motor control front-ends, sensor signal conditioning, HVAC control boards, and embedded instrumentation requiring 10-bit ADC resolution and multiple PWM channels. The 64-pin TQFP provides ample I/O for keypad scanning, LCD driving, and parallel bus expansion. When designing with this part, verify toolchain support: MPLAB IDE with C17 or MPASM compilers is required for OTP programming. Industrial designers should also note that newer replacements such as the PIC18F6520 (flash-based) are recommended by Microchip for new designs, while the PIC17C756A remains in service for legacy and long-lifecycle programs. This page synthesizes distributor inventory, OTP-versus-flash migration notes, and pin-compatible PIC17C family alternatives not found on a single distributor listing.

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PIC17C756A-33/L - 33MHz 8-Bit OTP MCU, 32KB, 50 I/O | Microchip
PIC17C756A-33/L

PIC17C756A-33/L - 33MHz 8-Bit OTP MCU, 32KB, 50 I/O | Microchip

The Microchip Technology PIC17C756A-33/L is an 8-bit high-performance RISC microcontroller built on the PIC17C architecture, delivering up to 33 MHz clock speed and 32 KB (16K x 16) of one-time-programmable (OTP) program memory in a 68-pin PLCC (24.23x24.23 mm) package. Its 8.25 MIPS throughput at 33 MHz (121 ns instruction cycle) supports single-cycle execution for most instructions, with only program branches and table reads requiring two cycles. The device integrates 902 bytes of on-chip data RAM, 50 digital I/O lines, 12 channels of 10-bit Analog-to-Digital conversion, three PWM outputs, four capture inputs, an external memory interface, and a synchronous serial port configurable as either SPI or I2C. A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (program + RAM), and programmable peripherals onto one silicon die. The PIC17C family sits within the legacy OTP-ROM 8-bit MCU tier of Microchip's product tree: MCU -> 8-bit microcontroller -> PIC -> PIC17C -> high-performance segment. Unlike flash-based PIC18F successors, PIC17C devices use EPROM/OTP program memory, which makes them suited for mature, low-cost, moderate-volume embedded products where firmware is finalized at production. Key features include 58 single-word instructions for compact code, an 8 x 8 single-cycle hardware multiplier, brown-out reset, a watchdog timer, and an extended instruction set. Supply voltage is 4.5 V to 5.5 V (5 V nominal), and the OTP program memory allows one-time factory or prototyping programming. The 68-pin PLCC J-leaded package offers socket-upgradeable serviceability for industrial and legacy systems. Typical applications include industrial control panels, motor control nodes, instrumentation front-ends, and embedded control boards that were originally designed around the PIC17C platform. When designing in this part, note that PIC17C756A is a mature OTP device; new designs should evaluate PIC18F6520 or PIC18F8720 as flash-based drop-in or near-drop-in successors per Microchip migration guidance.

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PIC17C756A-33/PT - 8-bit 33MHz 32KB OTP MCU 64-TQFP | Microchip
PIC17C756A-33/PT

PIC17C756A-33/PT - 8-bit 33MHz 32KB OTP MCU 64-TQFP | Microchip

The Microchip Technology PIC17C756A-33/PT is a high-performance 8-bit CMOS EPROM/OTP-based microcontroller running at 33 MHz with a 121 ns instruction cycle and 8.25 MIPS throughput, housed in a 64-pin TQFP (10x10 mm) package. It integrates 32 KB (16K x 16) of OTP program memory, 902 bytes of data RAM, and 50 digital I/O pins, and is built around the legacy PIC17Cxxx RISC architecture with only 58 single-word instructions to learn. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (ROM/Flash/OTP), working RAM, peripherals (timers, ADC, communication ports, PWM), and I/O into one package. PIC17C756A-33/PT belongs to the high-end PIC17C family and the broader 8-bit PIC microcontroller hierarchy; while superseded by the Flash-based PIC18F family, it remains in use in long-lifecycle industrial, instrumentation, and legacy designs where OTP memory and a known instruction set are acceptable. Within the power management and signal-chain tree, PIC17C756A-33/PT serves as the digital control plane that supervises analog and power subsystems rather than as a power device itself. Key differentiating features include a 12-channel 10-bit Analog-to-Digital Converter (A/D), 4 capture inputs, 3 PWM outputs, an 8x hardware single-cycle multiplier, and a synchronous serial port configurable as 3-wire SPI or 2-wire I2C plus 2 UART channels. External Memory Addressing extends the program/data space beyond the on-chip 32 KB. These peripherals target embedded control tasks that combine analog sensing, motor or actuator drive, and serial communication in one device. Architecturally, the PIC17C756A-33/PT uses a Harvard RISC core with separate program and data buses, an 8-bit ALU, and dedicated hardware for the 8x8 multiplier so that MULWF executes in a single 121 ns cycle. Operating supply voltage is 4.5 V to 5.5 V and the instruction set is fully orthogonal across all 58 single-word opcodes, simplifying code generation for legacy codebases that target the PIC17C family. Compared with the newer Flash-based PIC18F6520 recommended by Microchip as a successor, the PIC17C756A is OTP (one-time programmable) and is therefore unsuitable for field firmware updates. Typical applications include industrial process control, motor drive and PWM control loops, instrumentation with on-board A/D conversion, and embedded control boards with multiple serial buses. Because OTP memory is permanently programmed at production time, the part is best suited to high-volume or fully characterized designs rather than prototype or field-serviceable products. When designing with the PIC17C756A-33/PT, ensure that the system clock source is stable, the MCLR reset network is properly decoupled, and that the analog AVdd/AVss rails are filtered with the values specified in the datasheet. Confirm in-system programming availability by selecting the correct memory type - OTP parts cannot be reprogrammed and the design must be fully validated before committing to production. This page combines verified distributor pricing and parametric data with drop-in cross references and practical design guidance not available from a single distributor listing.

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