ATF750C-15SC Equivalent & Substitute Parts

Part Overview

The ATF750C-15SC is a Complex Programmable Logic Device (CPLD) manufactured by Microchip Technology, featuring 10 macrocells and 10 I/O pins in a 24-SOIC surface mount package. This part is classified as obsolete, making identification of compatible substitutes essential for ongoing system support and component procurement.

The ATF750C-15SC operates within a 4.75V to 5.25V supply range with a maximum propagation delay of 15 nanoseconds. As an EE PLD (Electrically Erasable Programmable Logic Device), it supports reprogramming capabilities. The obsolete status necessitates evaluation of active alternatives that maintain functional and mechanical compatibility.

Substiute Parts

ATF750C-15SC

Microchip TechnologyIn Stock: 9173ATF750C-15SC Datasheet

Current PartRFQ

ATF750C-10SU

Microchip TechnologyIn Stock: 2375ATF750C-10SU Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ATF750C-15SC is determined by the following critical parameters:

• Base Product Family: Both parts must belong to the ATF750 series to ensure functional equivalence
• Macrocell Count: Minimum 10 macrocells required for logic capacity compatibility
• I/O Pin Count: Minimum 10 I/O pins required for signal routing compatibility
• Package Type: 24-SOIC surface mount package with identical 0.295" (7.50mm) width for PCB layout compatibility
• Programmable Type: EE PLD technology for reprogramming capability
• Voltage Supply Range: Must accommodate the original 4.75V ~ 5.25V operating window

The ATF750C-10SU meets all substitution criteria as an active product within the same ATF750 family, maintaining identical macrocell and I/O specifications with compatible packaging.

Parameter Comparison

Engineering Selection Recommendations

The ATF750C-10SU is a direct functional substitute for the ATF750C-15SC based on matching macrocell architecture, I/O configuration, and package specifications. Key selection considerations:

Performance Enhancement: The ATF750C-10SU provides superior propagation delay performance at 10 ns maximum compared to 15 ns, enabling faster logic operation without design modification.

Voltage Supply Compatibility: The substitute's 4.5V ~ 5.5V supply range encompasses the original 4.75V ~ 5.25V window, ensuring compatibility with existing power distribution systems.

Temperature Range Extension: The ATF750C-10SU supports -40°C ~ 85°C operation, exceeding the original 0°C ~ 70°C specification for applications requiring extended thermal performance.

Compliance Status: The ATF750C-10SU achieves ROHS3 compliance, addressing regulatory requirements for new designs and procurement cycles. The original part's RoHS non-compliant status may restrict availability in regulated markets.

Product Availability: Active product status ensures ongoing supply and manufacturing support for the ATF750C-10SU, eliminating obsolescence risk associated with the original part.

Frequently Asked Questions (FAQ)

Q: Can the ATF750C-10SU directly replace the ATF750C-15SC on existing PCBs?

A: Yes. Both parts use identical 24-SOIC packaging with matching pin configurations and footprints. No PCB layout modifications are required.

Q: What is the significance of the speed grade difference (15 ns vs. 10 ns)?

A: The ATF750C-10SU's 10 ns propagation delay is faster than the original 15 ns specification. This represents an improvement that does not require design changes; existing timing margins remain valid or improve.

Q: Are there voltage supply considerations when substituting?

A: The ATF750C-10SU's 4.5V ~ 5.5V supply range is broader than the original 4.75V ~ 5.25V specification. Existing power supplies within the original range operate within the substitute's specifications without modification.

Q: Does the extended operating temperature range of the ATF750C-10SU affect compatibility?

A: No. The substitute's -40°C ~ 85°C range encompasses the original 0°C ~ 70°C specification. Applications operating within the original temperature window remain fully compatible.

Q: What is the impact of RoHS compliance differences?

A: The ATF750C-10SU's ROHS3 compliance meets current regulatory standards for electronics manufacturing and procurement. The original part's non-compliant status may restrict use in regulated industries or new product certifications.

Q: Are programming and reprogramming procedures identical between these parts?

A: Both parts are EE PLD devices within the same ATF750 family. Programming algorithms and procedures remain consistent across the product line.

Q: How does product status affect long-term availability?

A: The ATF750C-10SU's active status ensures continued manufacturing and supply chain availability. The original part's obsolete status indicates limited or discontinued production, making the substitute essential for ongoing system support.