PIC16LC554T-04I/SO Equivalent & Substitute Parts

Part Overview

The PIC16LC554T-04I/SO is an 8-bit microcontroller from Microchip Technology's PIC® 16C series, designed for embedded applications requiring low-power operation and basic I/O control. This device features 896B of OTP (One-Time Programmable) memory, 80 x 8 bytes of RAM, and 13 I/O pins, operating at 4MHz with an external oscillator. The part is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications.

Substiute Parts

PIC16LC554T-04I/SO

Microchip TechnologyIn Stock: 1114PIC16LC554T-04I/SO Datasheet

Current PartRFQ

PIC16LC554-04I/SO

Microchip TechnologyIn Stock: 920PIC16LC554-04I/SO Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the PIC16LC554T-04I/SO is determined by strict equivalence across the following critical parameters:

• Core processor architecture (PIC)
• Core size (8-Bit)
• Operating speed (4MHz)
• Program memory capacity and type (896B OTP)
• RAM capacity (80 x 8)
• I/O pin count (13)
• Supply voltage range (2.5V ~ 5.5V)
• Peripheral set (POR, WDT)
• Package type and dimensions (18-SOIC)
• Operating temperature range (-40°C ~ 85°C)
• Compliance certifications (ROHS3, REACH Unaffected)

The substitute part PIC16LC554-04I/SO meets all these criteria and is classified as active product status, providing continued availability for replacement applications.

Parameter Comparison

Engineering Selection Recommendations

The PIC16LC554-04I/SO is the direct equivalent substitute for the obsolete PIC16LC554T-04I/SO. Both parts are manufactured by Microchip Technology and share identical electrical and mechanical specifications across all critical parameters. The substitute part maintains active product status, ensuring continued availability and supply chain reliability. Both parts comply with ROHS3 and REACH requirements, supporting regulatory compliance in manufacturing environments. Selection of the PIC16LC554-04I/SO eliminates obsolescence risk while preserving full functional and physical compatibility with existing designs.

Frequently Asked Questions (FAQ)

Q: Can PIC16LC554-04I/SO be used as a direct replacement for PIC16LC554T-04I/SO?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters, including core processor, memory configuration, I/O count, voltage supply range, operating temperature, and 18-SOIC package dimensions.

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

A: The main difference is product status. PIC16LC554T-04I/SO is classified as obsolete, while PIC16LC554-04I/SO maintains active status, ensuring ongoing availability and supply continuity.

Q: Are there any package or pinout differences?

A: No. Both parts use the identical 18-SOIC package with 0.295" width and 7.50mm dimensions. Pinout and I/O configuration are identical.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are ROHS3 compliant and REACH unaffected, meeting equivalent regulatory requirements for manufacturing and distribution.

Q: What memory type is used in these microcontrollers?

A: Both parts use OTP (One-Time Programmable) memory for program storage, with 896B capacity organized as 512 x 14 bits, plus 80 x 8 bytes of RAM.

Q: Can these parts operate at different supply voltages?

A: No. Both parts operate within the identical voltage range of 2.5V to 5.5V (Vcc/Vdd). Supply voltage specifications are identical.