PIC16C554T-04E/SS Equivalent & Substitute Parts

Part Overview

The PIC16C554T-04E/SS is an 8-bit microcontroller from Microchip Technology's PIC® 16C series, featuring 896B of OTP (One-Time Programmable) memory and operating at 4MHz. This device is classified as obsolete, which necessitates identification of equivalent and substitute components for ongoing design support and production requirements. The part is housed in a 20-SSOP surface mount package and operates across an extended temperature range of -40°C to 125°C.

Substiute Parts

PIC16C554T-04E/SS

Microchip TechnologyIn Stock: 857PIC16C554T-04E/SS Datasheet

Current PartRFQ

PIC16C554-04I/SS

Microchip TechnologyIn Stock: 2188PIC16C554-04I/SS Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PIC16C554T-04E/SS is determined by strict alignment of the following critical parameters:

• Core Processor Architecture: PIC platform compatibility
• Memory Configuration: 896B (512 x 14) OTP program memory and 80 x 8 RAM
• Operating Frequency: 4MHz clock speed
• I/O Count: 13 input/output pins
• Supply Voltage Range: 3V ~ 5.5V operation
• Package Type: 20-SSOP form factor
• Peripheral Set: POR (Power-On Reset) and WDT (Watchdog Timer)

The identified substitute part PIC16C554-04I/SS maintains full compatibility across all electrical and mechanical parameters. The primary distinction lies in product status classification and operating temperature specification.

Parameter Comparison

Engineering Selection Recommendations

The PIC16C554-04I/SS serves as a direct functional equivalent to the PIC16C554T-04E/SS. Both devices share identical electrical specifications, memory architecture, I/O configuration, and package geometry. The substitute part carries Active product status, ensuring continued availability and manufacturing support from Microchip Technology.

The primary consideration for selection is the operating temperature specification. The main part supports -40°C to 125°C operation, while the substitute part operates within -40°C to 85°C. Applications requiring the extended upper temperature range of 125°C must retain the original part number or identify alternative solutions outside this product family.

Both parts maintain ROHS3 compliance and unlimited moisture sensitivity level rating, confirming suitability for standard surface mount assembly processes and storage conditions.

Frequently Asked Questions (FAQ)

Q: Can PIC16C554-04I/SS replace PIC16C554T-04E/SS in all applications?

A: Functional replacement is possible for applications operating within the -40°C to 85°C temperature range. Applications requiring operation above 85°C must use the original part or alternative components rated for extended temperature operation.

Q: Are the package dimensions identical between these parts?

A: Yes. Both parts use the 20-SSOP package with 0.209" width and 5.30mm body dimension. PCB footprints and assembly processes are interchangeable.

Q: What is the significance of the product status difference?

A: The main part is classified as Obsolete, indicating discontinued manufacturing. The substitute part maintains Active status, ensuring ongoing availability, technical support, and compliance with current manufacturing standards.

Q: Are there compliance differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical MSL ratings. Regulatory and environmental compliance requirements are equivalent.

Q: How do the memory specifications compare?

A: Both parts feature identical memory architecture: 896B (512 x 14) OTP program memory and 80 x 8 RAM configuration. Code compatibility and memory utilization are fully equivalent.