PIC17C762-16I/PT Equivalent & Substitute Parts

Part Overview

The PIC17C762-16I/PT is an 8-bit microcontroller from Microchip Technology's PIC® 17C series, featuring 16KB OTP program memory and operating at 16MHz. This device is classified as Active product status and is suitable for embedded applications requiring moderate processing capability with integrated peripherals including I2C, SPI, and UART/USART connectivity.

Finding equivalent and substitute parts becomes necessary when addressing inventory constraints, design optimization requirements, or when transitioning to newer microcontroller architectures that offer enhanced capabilities while maintaining package compatibility and core functionality.

Substiute Parts

PIC17C762-16I/PT

Microchip TechnologyIn Stock: 1001PIC17C762-16I/PT Datasheet

Current PartRFQ

PIC18F8520-I/PT

Microchip TechnologyIn Stock: 10667PIC18F8520-I/PT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PIC17C762-16I/PT is determined by the following critical parameters:

Package Compatibility: The 80-TQFP (12x12) surface mount package is the primary mechanical constraint. Substitute parts must maintain identical package dimensions and pin count to ensure direct PCB compatibility without layout modifications.

Voltage Supply Range: The operating voltage range of 4.5V ~ 5.5V establishes the power supply compatibility window. Substitute parts must operate within this range or a compatible overlapping range to function in existing power delivery circuits.

Core Architecture: Both the main part and substitute must be PIC-based 8-bit microcontrollers to ensure instruction set compatibility and firmware portability.

Operating Temperature Range: The -40°C ~ 85°C specification defines the thermal operating envelope. Substitute parts must support this temperature range for equivalent reliability in target applications.

Connectivity Interfaces: I2C, SPI, and UART/USART are essential communication protocols. Substitute parts must provide these interfaces to maintain system integration.

Compliance Standards: RoHS3 compliance and REACH unaffected status are mandatory for regulatory alignment.

Parameter Comparison

Engineering Selection Recommendations

The PIC18F8520-I/PT qualifies as a direct substitute for the PIC17C762-16I/PT based on the following engineering criteria:

Package Compatibility: Both devices utilize the 80-TQFP (12x12) surface mount package, enabling direct PCB compatibility without layout modifications.

Voltage Supply Compatibility: The PIC18F8520-I/PT operates within 4.2V ~ 5.5V, which encompasses the PIC17C762-16I/PT supply range of 4.5V ~ 5.5V. The substitute part maintains full compatibility with existing power delivery circuits.

Thermal Operating Range: Both devices operate across -40°C ~ 85°C, ensuring equivalent thermal performance in target applications.

Regulatory Compliance: Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for equivalent product selection.

Product Status: Both devices are classified as Active, confirming ongoing manufacturer support and availability.

Core Architecture: Both are PIC-based 8-bit microcontrollers with I2C, SPI, and UART/USART connectivity, supporting firmware portability within the PIC ecosystem.

The PIC18F8520-I/PT offers enhanced capabilities including 40MHz operation (versus 16MHz), 32KB FLASH program memory (versus 16KB OTP), and increased RAM (2K x 8 versus 678 x 8), making it suitable for applications requiring higher performance or reprogrammability.

Frequently Asked Questions (FAQ)

Q: Can the PIC18F8520-I/PT be used as a direct replacement for the PIC17C762-16I/PT without PCB modifications?

A: Yes. Both devices share the identical 80-TQFP (12x12) package and pin count, enabling direct socket compatibility. No PCB layout changes are required for mechanical and electrical integration.

Q: What are the key differences between these two microcontrollers?

A: The primary differences are: (1) Operating speed: PIC18F8520-I/PT runs at 40MHz versus 16MHz; (2) Program memory: 32KB FLASH versus 16KB OTP; (3) RAM capacity: 2K x 8 versus 678 x 8; (4) Program memory type: FLASH allows in-circuit reprogramming, while OTP is one-time programmable; (5) Additional I/O: 68 pins versus 66 pins; (6) Extended connectivity: PIC18F8520-I/PT includes EBI/EMI interface.

Q: Are the voltage supply requirements compatible?

A: Yes. The PIC18F8520-I/PT operates at 4.2V ~ 5.5V, which fully encompasses the PIC17C762-16I/PT range of 4.5V ~ 5.5V. Existing power supply circuits designed for the original part will function correctly with the substitute.

Q: Do both devices support the same communication protocols?

A: Both devices include I2C, SPI, and UART/USART interfaces. The PIC18F8520-I/PT additionally provides EBI/EMI connectivity, offering expanded communication options without removing core protocol support.

Q: What is the significance of OTP versus FLASH program memory?

A: OTP (One-Time Programmable) memory in the PIC17C762-16I/PT is programmed once during manufacturing and cannot be altered. FLASH memory in the PIC18F8520-I/PT allows in-circuit reprogramming, enabling firmware updates and development flexibility without component replacement.

Q: Are both devices RoHS and REACH compliant?

A: Yes. Both the PIC17C762-16I/PT and PIC18F8520-I/PT are ROHS3 compliant and REACH unaffected, meeting regulatory requirements for equivalent product selection in regulated markets.

Q: What is the operating temperature range for both devices?

A: Both devices operate across -40°C ~ 85°C (TA), providing equivalent thermal performance for industrial and commercial applications within this temperature envelope.