PIC16F688T-I/ST Equivalent & Substitute Parts

Part Overview

The PIC16F688T-I/ST is an 8-bit microcontroller from Microchip Technology's PIC® 16F series, designed for embedded applications requiring compact form factor and low power operation. This device features 7KB of FLASH program memory, 256 bytes of EEPROM, and 256 bytes of RAM, with integrated UART/USART connectivity and analog-to-digital conversion capabilities. The part is currently in active production status with verified programmability through DiGi-Electronics. Identifying equivalent substitute parts is essential for supply chain continuity, inventory optimization, and design flexibility when the primary part number becomes unavailable or when alternative packaging formats better suit procurement requirements.

Substiute Parts

PIC16F688T-I/ST

Microchip TechnologyIn Stock: 5403PIC16F688T-I/ST Datasheet

Current PartRFQ

PIC16F688-I/ST

Microchip TechnologyIn Stock: 75187PIC16F688-I/ST Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PIC16F688T-I/ST is determined by strict equivalence across all electrical and mechanical parameters. The primary substitute identified is the PIC16F688-I/ST, which shares the identical base product number (PIC16F688) and maintains complete functional equivalence across all critical specifications.

The substitution logic is based on the following key parameters that must remain constant:

• Core processor architecture (PIC)
• Core size (8-Bit)
• Operating frequency (20MHz)
• Program memory capacity and type (7KB FLASH, 4K x 14)
• EEPROM and RAM configuration (256 x 8 each)
• I/O pin count (12)
• Supply voltage range (2V ~ 5.5V)
• Peripheral feature set (UART/USART, Brown-out Detect/Reset, POR, WDT)
• Analog-to-digital converter specification (8x10b)
• Operating temperature range (-40°C ~ 85°C)
• Package type and pinout (14-TSSOP)
• Compliance certifications (ROHS3, REACH Unaffected)

The only variation between the main part and its substitute is the packaging format: the PIC16F688T-I/ST is supplied in Cut Tape (CT) & Digi-Reel® format, while the PIC16F688-I/ST is supplied in Tube packaging. Both parts are manufactured by Microchip Technology and maintain active product status.

Parameter Comparison

Engineering Selection Recommendations

Both the PIC16F688T-I/ST and PIC16F688-I/ST are active products from Microchip Technology with identical electrical specifications and compliance certifications. Selection between these parts should be based on packaging and procurement requirements rather than technical performance.

The PIC16F688T-I/ST in Cut Tape & Digi-Reel® format is suitable for high-volume automated assembly operations where tape-and-reel packaging optimizes pick-and-place machine compatibility and reduces handling time.

The PIC16F688-I/ST in Tube packaging is appropriate for lower-volume production runs, manual assembly processes, or applications where tube packaging provides superior protection during storage and transportation.

Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory compliance for industrial and consumer applications. The MSL rating of 1 (Unlimited) indicates no moisture sensitivity restrictions for either part.

Frequently Asked Questions (FAQ)

Q: Are the PIC16F688T-I/ST and PIC16F688-I/ST electrically identical?

A: Yes. Both parts share identical electrical specifications including processor architecture, memory configuration, I/O count, operating voltage range, temperature range, and peripheral features. They are functionally interchangeable at the circuit level.

Q: What is the difference between Cut Tape & Digi-Reel® and Tube packaging?

A: Cut Tape & Digi-Reel® packaging supplies components on continuous tape wound on reels, optimized for automated assembly equipment. Tube packaging supplies components in plastic tubes, typically used for manual assembly or lower-volume applications. The physical component and pinout remain identical.

Q: Can I use PIC16F688-I/ST as a direct replacement for PIC16F688T-I/ST in my design?

A: Yes, the PIC16F688-I/ST is a direct functional substitute. No circuit modifications are required. The only consideration is packaging format compatibility with your assembly process.

Q: Are both parts RoHS compliant?

A: Yes. Both the PIC16F688T-I/ST and PIC16F688-I/ST are ROHS3 compliant and REACH unaffected, meeting environmental and regulatory requirements for industrial applications.

Q: What does MSL 1 (Unlimited) mean for these parts?

A: MSL 1 (Unlimited) indicates that these components have no moisture sensitivity restrictions. They can be stored indefinitely without special moisture control measures, simplifying inventory management and reducing storage costs.

Q: Are there any differences in the 14-TSSOP package between these parts?

A: No. Both parts use the identical 14-TSSOP package with 0.173" width and 4.40mm dimensions. Pin configuration and electrical characteristics are identical.