PIC16C54-XTE/SS Equivalent & Substitute Parts

Part Overview

The PIC16C54-XTE/SS is an 8-bit microcontroller from Microchip Technology's PIC® 16C series, designed for embedded applications requiring OTP (One-Time Programmable) memory. This device operates at 4MHz with 768B of program memory and 12 I/O pins, housed in a 20-SSOP surface mount package. The PIC16C54-XTE/SS carries an Obsolete product status, making identification of compatible alternatives essential for ongoing system support and production continuity.

Substiute Parts

PIC16C54-XTE/SS

Microchip TechnologyIn Stock: 771PIC16C54-XTE/SS Datasheet

Current PartRFQ

PIC16C54-XTI/SS

Microchip TechnologyIn Stock: 951PIC16C54-XTI/SS Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PIC16C54-XTE/SS is determined by strict alignment of the following critical parameters:

• Core Processor & Architecture: Must be PIC processor family
• Core Size: Must be 8-Bit
• Program Memory: Must be 768B (512 x 12) OTP
• RAM Size: Must be 25 x 8
• I/O Count: Must be 12 pins
• Operating Speed: Must be 4MHz
• Package: Must be 20-SSOP form factor
• Voltage Supply Range: Must support the operating voltage window
• Peripherals: Must include POR and WDT functionality
• Mounting Type: Must be Surface Mount

The PIC16C54-XTI/SS meets all substitution criteria as a direct equivalent, with identical electrical and mechanical specifications. The primary distinction is product status and operating temperature range variance.

Parameter Comparison

Engineering Selection Recommendations

The PIC16C54-XTI/SS is a direct functional equivalent to the PIC16C54-XTE/SS. Both devices share identical core architecture, memory configuration, I/O capability, and package specifications. The substitute part carries Active product status, ensuring continued availability and supply chain support compared to the Obsolete status of the main part.

Voltage supply range differences are minor: the main part operates 3.25V–6V while the substitute operates 3V–6.25V. Both ranges overlap substantially and accommodate standard 5V and 3.3V logic systems. The operating temperature range of the substitute is narrower (-40°C to 85°C versus -40°C to 125°C), which may be a limiting factor only in applications requiring extended high-temperature operation beyond 85°C.

Both parts maintain ROHS3 compliance and identical MSL ratings, supporting equivalent handling and storage requirements. Selection between these parts should prioritize the Active status substitute for new designs and ongoing production to ensure long-term component availability.

Frequently Asked Questions (FAQ)

Q: Can PIC16C54-XTI/SS replace PIC16C54-XTE/SS in existing designs?

A: Yes. The PIC16C54-XTI/SS is functionally equivalent across all critical parameters: processor architecture, memory size and type, I/O count, operating speed, and package form factor. Voltage supply and temperature ranges are compatible for standard industrial applications.

Q: What is the significance of the Obsolete versus Active product status?

A: Obsolete status indicates the PIC16C54-XTE/SS is no longer manufactured or supported by Microchip Technology. The Active status of PIC16C54-XTI/SS ensures ongoing production, technical support, and supply availability. For production continuity, the Active part is preferred.

Q: Are there differences in voltage supply compatibility?

A: The main part operates 3.25V–6V; the substitute operates 3V–6.25V. Both support standard 5V and 3.3V logic systems. The substitute's lower minimum voltage (3V) provides slightly broader compatibility, while the main part's higher maximum (6V) is not exceeded by the substitute's 6.25V maximum in typical applications.

Q: Does the operating temperature range difference affect compatibility?

A: The main part supports -40°C to 125°C; the substitute supports -40°C to 85°C. For applications operating below 85°C, both are equivalent. Applications requiring sustained operation above 85°C must retain the original part or redesign for the substitute's temperature limits.

Q: Are the 20-SSOP packages physically identical?

A: Yes. Both parts use the same 20-SSOP package with 0.209" width and 5.30mm dimensions, ensuring identical PCB footprints and assembly compatibility.

Q: What compliance certifications apply to both parts?

A: Both PIC16C54-XTE/SS and PIC16C54-XTI/SS are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity ratings. Handling and storage requirements are identical.