PIC16C57CT-20E/SS Equivalent & Substitute Parts

Part Overview

The PIC16C57CT-20E/SS is an 8-bit microcontroller from Microchip Technology's PIC® 16C series, featuring 3KB OTP program memory, 20MHz operation, and 20 I/O pins in a 28-SSOP surface mount package. This device is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support, production continuity, and system maintenance. Active alternatives with identical or compatible electrical and mechanical specifications are available to ensure design flexibility and supply chain resilience.

Substiute Parts

PIC16C57CT-20E/SS

Microchip TechnologyIn Stock: 1160PIC16C57CT-20E/SS Datasheet

Current PartRFQ

PIC16C57C-20E/SS

Microchip TechnologyIn Stock: 803PIC16C57C-20E/SS Datasheet

DirectRFQ

PIC16C57C-20I/SS

Microchip TechnologyIn Stock: 3935PIC16C57C-20I/SS Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the PIC16C57CT-20E/SS is determined by strict equivalence across the following critical parameters:

• Core Architecture: PIC 8-bit processor
• Speed: 20MHz operation
• Program Memory: 3KB OTP (2K x 12)
• RAM: 72 x 8 bytes
• I/O Count: 20 pins
• Package: 28-SSOP form factor
• Voltage Supply: 3V ~ 5.5V range
• Compliance: ROHS3 and REACH status

The identified substitute parts maintain full electrical and mechanical compatibility with the main part number while offering improved product status (Active vs. Obsolete) and verified programmability through DiGi-Electronics.

Parameter Comparison

Engineering Selection Recommendations

Both PIC16C57C-20E/SS and PIC16C57C-20I/SS are direct substitutes for the obsolete PIC16C57CT-20E/SS. Selection between them depends on application-specific temperature requirements:

PIC16C57C-20E/SS maintains the full operating temperature range of -40°C to 125°C, matching the original part's thermal specification. This variant is suitable for applications requiring extended temperature operation across industrial and automotive environments. Product status is Active with verified DiGi-Electronics programmability.

PIC16C57C-20I/SS operates within a reduced temperature range of -40°C to 85°C, appropriate for commercial and consumer applications. This variant offers higher inventory availability (3880 Pcs) and is supplied in Tube packaging. Product status is Active with verified DiGi-Electronics programmability.

Both substitutes maintain full electrical compatibility, identical memory configurations, I/O pin counts, and package form factors. Selection should be based on the thermal operating requirements of the target application and packaging preferences.

Frequently Asked Questions (FAQ)

Q: Can PIC16C57C-20E/SS and PIC16C57C-20I/SS be used interchangeably with PIC16C57CT-20E/SS?

A: Both parts are electrically and mechanically compatible with the original part number. The primary difference is operating temperature range. PIC16C57C-20E/SS supports -40°C to 125°C, while PIC16C57C-20I/SS supports -40°C to 85°C. Selection depends on whether your application requires the extended upper temperature limit.

Q: What is the significance of the "C" designation in PIC16C57C-20E/SS and PIC16C57C-20I/SS?

A: The "C" indicates a revision level within the PIC16C57 base product family. All three parts share identical core architecture, memory configuration, and I/O specifications, maintaining full functional compatibility.

Q: Are there packaging differences between the substitute parts?

A: PIC16C57C-20E/SS is supplied in standard packaging, while PIC16C57C-20I/SS is supplied in Tube packaging. Both use the same 28-SSOP form factor with identical mechanical dimensions (0.209", 5.30mm Width).

Q: Why is the original PIC16C57CT-20E/SS classified as obsolete?

A: Obsolete status indicates the part is no longer in active production. Active substitutes with identical specifications are available to support existing designs and ensure supply chain continuity.

Q: Are all three parts ROHS3 compliant?

A: Yes. PIC16C57CT-20E/SS, PIC16C57C-20E/SS, and PIC16C57C-20I/SS are all ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), meeting current environmental and regulatory requirements.