PIC16C55T-RC/SS Equivalent & Substitute Parts

Part Overview

The PIC16C55T-RC/SS is an 8-bit microcontroller from Microchip Technology's PIC® 16C series, designed for embedded applications requiring low-cost, compact solutions. This device features 768B of OTP (One-Time Programmable) memory, 24 x 8 bytes of RAM, and 20 I/O pins in a 28-SSOP surface mount package. The main part is classified as Obsolete, making identification of active equivalent parts essential for ongoing production and maintenance applications.

Substiute Parts

PIC16C55T-RC/SS

Microchip TechnologyIn Stock: 851PIC16C55T-RC/SS Datasheet

Current PartRFQ

PIC16C55-RC/SS

Microchip TechnologyIn Stock: 997PIC16C55-RC/SS Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the PIC16C55T-RC/SS is determined by strict equivalence across the following critical parameters:

• Core Architecture: PIC 8-bit processor
• Memory Configuration: 768B OTP program memory (512 x 12), 24 x 8 RAM
• I/O Count: 20 I/O pins
• Operating Voltage: 3V ~ 6.25V supply range
• Package: 28-SSOP form factor with identical pin pitch (0.209", 5.30mm width)
• Speed: 4MHz operation
• Peripherals: POR (Power-On Reset) and WDT (Watchdog Timer)

The identified substitute part PIC16C55-RC/SS maintains full electrical and mechanical compatibility with the main part across all specified parameters. The primary distinction is product status: the main part is Obsolete, while the substitute is Active and verified for programmability.

Parameter Comparison

Engineering Selection Recommendations

The PIC16C55-RC/SS is the direct equivalent for the obsolete PIC16C55T-RC/SS. Selection of the substitute part is justified by:

• Product Status Alignment: The substitute transitions from Obsolete to Active status, ensuring continued availability and supply chain reliability.
• Compliance Certification: Both parts maintain ROHS3 compliance and REACH unaffected status, meeting regulatory requirements for current manufacturing standards.
• Programmability Verification: The substitute part is verified for programmability, providing assurance for production programming operations.
• Electrical and Mechanical Equivalence: All functional parameters, pin configurations, and package specifications are identical, enabling direct replacement without circuit redesign.

Frequently Asked Questions (FAQ)

Q: Can PIC16C55-RC/SS be used as a direct replacement for PIC16C55T-RC/SS?

A: Yes. The PIC16C55-RC/SS is electrically and mechanically equivalent to the PIC16C55T-RC/SS across all specified parameters, including core architecture, memory configuration, I/O count, voltage supply range, operating temperature, and 28-SSOP package specifications.

Q: What is the primary reason for substitution?

A: The main part (PIC16C55T-RC/SS) is classified as Obsolete. The substitute (PIC16C55-RC/SS) is Active, ensuring ongoing availability and supply chain continuity for production applications.

Q: Are there any package or pinout differences?

A: No. Both parts use the identical 28-SSOP package with 0.209" (5.30mm) width. Pin configuration and I/O assignments are identical.

Q: Do compliance certifications differ between the parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical MSL ratings (1 - Unlimited).

Q: Is there a difference in programmability?

A: The substitute part (PIC16C55-RC/SS) is verified for programmability, while the main part is not verified. This provides additional assurance for production programming workflows.

Q: Are the memory specifications identical?

A: Yes. Both parts feature 768B OTP program memory (512 x 12 organization), 24 x 8 bytes of RAM, and identical peripheral support (POR, WDT).