PIC16C558T-04E/SS Equivalent & Substitute Parts

Part Overview

The PIC16C558T-04E/SS is an 8-bit microcontroller from Microchip Technology's PIC® 16C series, featuring 4.6KB OTP program memory and 13 I/O pins in a 20-SSOP surface mount package. This device is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. The part operates at 4MHz with a supply voltage range of 3V to 5.5V and includes integrated Power-On Reset (POR) and Watchdog Timer (WDT) peripherals.

Substiute Parts

PIC16C558T-04E/SS

Microchip TechnologyIn Stock: 734PIC16C558T-04E/SS Datasheet

Current PartRFQ

PIC16C558-04E/SS

Microchip TechnologyIn Stock: 976PIC16C558-04E/SS Datasheet

DirectRFQ

PIC16C558-04I/SS

Microchip TechnologyIn Stock: 908PIC16C558-04I/SS Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the PIC16C558T-04E/SS is determined by strict alignment of the following electrical and mechanical parameters:

• Core Architecture: PIC 8-bit processor
• Program Memory: 4.6KB OTP
• RAM Configuration: 128 x 8
• I/O Count: 13 pins
• Operating Speed: 4MHz
• Supply Voltage Range: 3V ~ 5.5V
• Package Type: 20-SSOP surface mount
• Peripherals: POR and WDT functionality
• Compliance: ROHS3 and REACH requirements

The substitute parts identified maintain these core parameters while differing in product status (active vs. obsolete) and temperature rating specifications.

Parameter Comparison

Engineering Selection Recommendations

PIC16C558-04E/SS is the primary substitute for the obsolete PIC16C558T-04E/SS. Both parts share identical electrical specifications, memory configuration, I/O count, and package format. The PIC16C558-04E/SS maintains active product status with verified programmability and full compliance with ROHS3 and REACH requirements. The operating temperature range extends to 125°C, matching the original part specification.

PIC16C558-04I/SS serves as an alternative substitute with identical core functionality and package compatibility. This part differs in operating temperature range, limited to -40°C to 85°C. Selection of this variant is appropriate for applications where the reduced upper temperature limit does not conflict with system requirements. Like the primary substitute, this part maintains active status and full regulatory compliance.

Both substitute parts are available in production quantities and carry verified programmability certification from DiGi-Electronics.

Frequently Asked Questions (FAQ)

Q: Can PIC16C558-04E/SS directly replace PIC16C558T-04E/SS?

A: Yes. Both parts are electrically and mechanically identical, with matching memory configuration, I/O count, operating voltage, speed, and 20-SSOP package format. The primary difference is product status: the substitute is active while the original is obsolete.

Q: What is the difference between PIC16C558-04E/SS and PIC16C558-04I/SS?

A: The parts are functionally equivalent with one specification difference: operating temperature range. PIC16C558-04E/SS operates from -40°C to 125°C, while PIC16C558-04I/SS operates from -40°C to 85°C. Both maintain identical memory, I/O, voltage, and package specifications.

Q: Are these substitutes compatible with existing PCB designs?

A: Yes. All substitute parts use the identical 20-SSOP surface mount package with matching pin configuration and electrical characteristics. No PCB redesign is required.

Q: Do the substitute parts meet regulatory requirements?

A: Yes. Both PIC16C558-04E/SS and PIC16C558-04I/SS are ROHS3 compliant and REACH unaffected, matching the compliance status of the original part.

Q: Which substitute should I select for new designs?

A: PIC16C558-04E/SS is recommended for new designs due to its extended operating temperature range (-40°C to 125°C) and active product status. PIC16C558-04I/SS is suitable when the reduced temperature range (-40°C to 85°C) aligns with application requirements.