PIC16C54T-RCE/SS Equivalent & Substitute Parts

Part Overview

The PIC16C54T-RCE/SS is an 8-bit microcontroller from Microchip Technology's PIC® 16C series, designed for embedded applications requiring low-cost, compact solutions. This device features 768B of OTP (One-Time Programmable) memory, 12 I/O pins, and operates at 4MHz with an external oscillator. The part is currently obsolete, making substitute identification critical for legacy system maintenance and component sourcing.

Substiute Parts

PIC16C54T-RCE/SS

Microchip TechnologyIn Stock: 958PIC16C54T-RCE/SS Datasheet

Current PartRFQ

PIC16C54-RCI/SS

Microchip TechnologyIn Stock: 836PIC16C54-RCI/SS Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the PIC16C54T-RCE/SS is determined by strict alignment of core functional and electrical parameters. The following criteria establish valid substitute relationships:

Primary Substitution Criteria:

• Identical core processor architecture (PIC)
• Matching core size (8-Bit)
• Identical program memory size and type (768B OTP)
• Matching RAM configuration (25 x 8)
• Identical I/O pin count (12)
• Compatible operating speed (4MHz)
• Identical package form factor (20-SSOP)
• Matching peripheral set (POR, WDT)
• Compatible voltage supply range overlap
• Identical mounting type (Surface Mount)

The PIC16C54-RCI/SS qualifies as a direct substitute based on these parameters, with the primary distinction being packaging format (Tube vs. unspecified) and product status transition from Obsolete to Active.

Parameter Comparison

Engineering Selection Recommendations

The PIC16C54-RCI/SS serves as the direct substitute for the obsolete PIC16C54T-RCE/SS. Both devices maintain identical functional specifications across all critical parameters: processor architecture, memory configuration, I/O count, package geometry, and peripheral set.

Compliance Considerations: Both parts maintain ROHS3 compliance and identical MSL ratings, ensuring regulatory and environmental compatibility. The substitute part carries Active product status, providing assured long-term availability and supply chain stability compared to the Obsolete main part.

Voltage Supply Range: The substitute exhibits a marginally expanded upper voltage limit (6.25V vs. 6V) and reduced lower limit (3V vs. 3.25V). Applications operating within the original specification range (3.25V ~ 6V) remain fully compatible.

Operating Temperature Range: The substitute operates across -40°C ~ 85°C, compared to the main part's -40°C ~ 125°C range. Applications requiring operation above 85°C require evaluation against actual thermal requirements.

Frequently Asked Questions (FAQ)

Q: Can PIC16C54-RCI/SS directly replace PIC16C54T-RCE/SS in existing designs?

A: Yes. Both parts share identical core specifications, memory architecture, I/O configuration, and package form factor. The substitute is electrically and mechanically compatible for direct PCB substitution.

Q: What is the significance of the packaging difference (Tube vs. unspecified)?

A: Packaging format affects component handling and storage but does not impact electrical or mechanical compatibility. Tube packaging provides organized component management during assembly operations.

Q: Are there voltage supply considerations for substitution?

A: The substitute's voltage range (3V ~ 6.25V) overlaps the original specification (3.25V ~ 6V). Designs operating within 3.25V ~ 6V require no modification. Designs operating below 3.25V or above 6V require evaluation against the substitute's expanded range.

Q: Does the operating temperature range difference affect substitution?

A: The substitute supports -40°C ~ 85°C versus the original -40°C ~ 125°C. Applications requiring operation above 85°C must evaluate thermal requirements independently. Standard industrial and commercial temperature ranges remain fully supported.

Q: What is the advantage of selecting the Active-status substitute?

A: Active product status ensures ongoing manufacturer support, documented availability, and supply chain continuity. The Obsolete main part faces potential permanent discontinuation and sourcing challenges.