PIC16C54AT-10E/SS Equivalent & Substitute Parts

Part Overview

The PIC16C54AT-10E/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 10MHz with a supply voltage range of 4.5V to 5.5V. The component is housed in a 20-SSOP surface mount package.

The PIC16C54AT-10E/SS carries an Obsolete product status. Locating equivalent or substitute components is necessary for ongoing production support, legacy system maintenance, and design continuity where this microcontroller was originally specified.

Substiute Parts

PIC16C54AT-10E/SS

Microchip TechnologyIn Stock: 1119PIC16C54AT-10E/SS Datasheet

Current PartRFQ

Key Parameters

Substitute Part Grouping Explanation

No direct substitute parts are currently available from the provided data. Substitution for the PIC16C54AT-10E/SS requires identification of alternative microcontrollers that meet the following critical parameters:

• 8-bit core architecture
• Minimum 768B program memory (OTP or Flash)
• Minimum 25 x 8 RAM configuration
• Minimum 12 I/O pins
• 10MHz operating frequency capability
• 4.5V to 5.5V supply voltage compatibility
• 20-pin surface mount package (SSOP or equivalent footprint)
• POR and WDT peripheral support
• Operating temperature range of -40°C to 125°C
• ROHS3 compliance

Candidates for substitution must maintain electrical and mechanical compatibility across all specified parameters. Pin-to-pin compatibility and memory organization are critical factors in determining functional equivalence.

Parameter Comparison

No substitute parts are available in the current dataset for direct comparison.

Engineering Selection Recommendations

The PIC16C54AT-10E/SS is classified as Obsolete. When seeking replacement components, prioritize the following criteria:

• Verify ROHS3 compliance status for regulatory alignment
• Confirm MSL rating compatibility with existing assembly processes
• Validate that substitute devices maintain the same pin count and package footprint to minimize PCB redesign
• Ensure program memory capacity meets or exceeds 768B to accommodate existing firmware
• Confirm supply voltage tolerance (4.5V to 5.5V) matches system power distribution
• Verify operating temperature range encompasses -40°C to 125°C for intended application environment

Obsolete status indicates limited availability. Inventory verification and long-term supply chain assessment are recommended before finalizing component selection.

Frequently Asked Questions (FAQ)

Q: What makes a microcontroller a valid substitute for the PIC16C54AT-10E/SS?

A: A valid substitute must match the core 8-bit architecture, provide minimum 768B program memory, include at least 12 I/O pins, support 10MHz operation, maintain 4.5V to 5.5V supply voltage compatibility, and be available in a 20-pin SSOP package with equivalent pinout.

Q: Can I use a microcontroller with more program memory than 768B?

A: Yes. Increased program memory capacity is compatible with the PIC16C54AT-10E/SS specification, provided all other electrical and mechanical parameters remain within tolerance.

Q: Is the 20-SSOP package critical for substitution?

A: Package compatibility is essential for direct board-level replacement without PCB redesign. Alternative packages require layout modifications and are not considered direct substitutes.

Q: What is the significance of OTP memory in this device?

A: OTP (One-Time Programmable) memory cannot be erased or reprogrammed after initial programming. Substitutes with Flash memory offer reprogrammability but remain functionally equivalent if all other parameters align.

Q: Does ROHS3 compliance affect substitute selection?

A: Yes. ROHS3 compliance is a regulatory requirement for many applications. Substitute components must maintain equivalent or superior compliance status.

Q: Why is the PIC16C54AT-10E/SS classified as Obsolete?

A: Obsolete status indicates the manufacturer has discontinued production and support. Existing inventory may be available through authorized distributors, but long-term availability is not guaranteed.