PIC16LC554-04E/SS Equivalent & Substitute Parts

Part Overview

The PIC16LC554-04E/SS is an 8-bit microcontroller from Microchip Technology's PIC® 16C series, designed for embedded applications requiring low-power operation and basic I/O functionality. This device features 896B of OTP (One-Time Programmable) memory, 80 x 8 bytes of RAM, and 13 I/O pins in a 20-SSOP surface mount package. The part is classified as obsolete, making identification of compatible substitutes essential for ongoing system support and new design implementations.

Substiute Parts

PIC16LC554-04E/SS

Microchip TechnologyIn Stock: 1015PIC16LC554-04E/SS Datasheet

Current PartRFQ

PIC16LC554-04I/SS

Microchip TechnologyIn Stock: 781PIC16LC554-04I/SS Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the PIC16LC554-04E/SS is determined by strict alignment of the following critical parameters:

• Core Processor Architecture: PIC platform compatibility
• Core Size: 8-Bit processing capability
• Program Memory: 896B (512 x 14) OTP configuration
• RAM Size: 80 x 8 byte capacity
• I/O Count: 13 pins minimum
• Package Type: 20-SSOP form factor
• Voltage Supply Range: 2.5V ~ 5.5V operation
• Mounting Configuration: Surface mount technology

The PIC16LC554-04I/SS qualifies as a direct substitute based on identical core architecture, memory configuration, I/O count, package type, and voltage specifications. Differences in operating temperature range and product status do not affect functional substitution within the specified electrical parameters.

Parameter Comparison

Engineering Selection Recommendations

The PIC16LC554-04I/SS serves as the direct functional equivalent for the obsolete PIC16LC554-04E/SS. Both devices maintain identical electrical specifications across core processor architecture, memory configuration, I/O capability, and package form factor. The substitute part carries active product status from Microchip Technology, ensuring continued availability and supply chain support.

Both parts maintain ROHS3 compliance and identical moisture sensitivity ratings, satisfying regulatory and environmental requirements. The operating temperature range difference (-40°C ~ 85°C for the substitute versus -40°C ~ 125°C for the original) should be evaluated against specific application thermal requirements. For applications operating within the -40°C ~ 85°C window, the PIC16LC554-04I/SS provides full functional compatibility without design modification.

Frequently Asked Questions (FAQ)

Q: Can the PIC16LC554-04I/SS directly replace the PIC16LC554-04E/SS in existing designs?

A: Yes, the PIC16LC554-04I/SS is a direct substitute. Both devices share identical core processor architecture, memory configuration (896B OTP, 80 x 8 RAM), I/O count (13 pins), package type (20-SSOP), and voltage supply range (2.5V ~ 5.5V). Existing PCB layouts and firmware require no modification.

Q: What is the significance of the operating temperature range difference?

A: The original part operates from -40°C ~ 125°C, while the substitute operates from -40°C ~ 85°C. Applications requiring operation above 85°C must verify thermal requirements against the substitute's specifications. For standard industrial and commercial temperature ranges, this difference does not impact functionality.

Q: Are both parts pin-compatible?

A: Yes. Both the PIC16LC554-04E/SS and PIC16LC554-04I/SS use the 20-SSOP package with identical pinout and electrical characteristics. No PCB redesign is necessary.

Q: What packaging options are available for the substitute part?

A: The PIC16LC554-04I/SS is supplied in Tube packaging, whereas the original part packaging specification was not defined. Verify packaging requirements for your procurement and assembly processes.

Q: Do both parts meet current regulatory compliance standards?

A: Yes. Both devices are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and distribution.