PIC16C554T-20I/SO Equivalent & Substitute Parts

Part Overview

The PIC16C554T-20I/SO is an 8-bit microcontroller from Microchip Technology's PIC® 16C series, designed for embedded applications requiring low-cost, compact solutions. This device features 896B of OTP (One-Time Programmable) memory, 13 I/O pins, and operates at 20MHz with a supply voltage range of 3V to 5.5V. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support, maintenance, and new design implementations where legacy compatibility is required.

Substiute Parts

PIC16C554T-20I/SO

Microchip TechnologyIn Stock: 1253PIC16C554T-20I/SO Datasheet

Current PartRFQ

PIC16C554-20I/SO

Microchip TechnologyIn Stock: 892PIC16C554-20I/SO Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the PIC16C554T-20I/SO is determined by strict alignment of the following critical parameters:

• Core Processor Architecture: PIC processor family
• Core Size: 8-Bit processing capability
• Operating Speed: 20MHz clock frequency
• Program Memory Configuration: 896B (512 x 14) OTP memory
• RAM Capacity: 80 x 8 byte organization
• I/O Pin Count: 13 I/O pins
• Supply Voltage Range: 3V ~ 5.5V compatibility
• Operating Temperature Range: -40°C ~ 85°C
• Package Type: 18-SOIC surface mount form factor
• Compliance Standards: ROHS3 compliance

The substitute part PIC16C554-20I/SO meets all these parameters identically, providing direct functional equivalence with the obsolete PIC16C554T-20I/SO.

Parameter Comparison

Engineering Selection Recommendations

The PIC16C554-20I/SO serves as the direct substitute for the obsolete PIC16C554T-20I/SO. Both parts are manufactured by Microchip Technology and maintain identical electrical and mechanical specifications across all critical parameters. The primary distinction is product status: the original part is obsolete while the substitute remains in active production.

Both parts maintain ROHS3 compliance and identical moisture sensitivity ratings, ensuring compatibility with current manufacturing and environmental standards. The substitute part is verified as programmable through DiGi-Electronics, confirming functional readiness for deployment.

Frequently Asked Questions (FAQ)

Q: Can PIC16C554-20I/SO directly replace PIC16C554T-20I/SO in existing designs?

A: Yes. Both parts share identical electrical specifications, memory configuration, I/O pin count, operating voltage range, temperature range, and 18-SOIC package dimensions. Direct substitution is supported without circuit modification.

Q: What is the difference between these two part numbers?

A: The parts are functionally equivalent. The primary difference is product lifecycle status: PIC16C554T-20I/SO is obsolete, while PIC16C554-20I/SO remains in active production.

Q: Are there any compliance or certification differences?

A: No. Both parts maintain identical ROHS3 compliance status and moisture sensitivity level (MSL 1 - Unlimited), ensuring compatibility with current manufacturing and environmental requirements.

Q: Is the 18-SOIC package identical between both parts?

A: Yes. Both parts use the 18-SOIC package with 0.295" width and 7.50mm dimensions, ensuring identical PCB footprint and mounting compatibility.

Q: What memory configuration do these parts support?

A: Both parts feature 896B (512 x 14) OTP program memory and 80 x 8 byte RAM, with identical memory organization and access characteristics.