ATF750CL-15SC Equivalent & Substitute Parts

Part Overview

The ATF750CL-15SC is a 10-macrocell CPLD (Complex Programmable Logic Device) manufactured by Microchip Technology, housed in a 24-SOIC package with 15 ns maximum propagation delay. This device is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design support and production requirements. The ATF750CL-15SC operates within a 4.75V to 5.25V supply range and supports 10 I/O pins across an industrial temperature range of 0°C to 70°C.

Substiute Parts

ATF750CL-15SC

Microchip TechnologyIn Stock: 735ATF750CL-15SC Datasheet

Current PartRFQ

ATF750CL-15SU

Microchip TechnologyIn Stock: 5645ATF750CL-15SU Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ATF750CL-15SC is determined by the following critical parameters:

• Macrocell count: 10 (must match exactly)
• I/O pin count: 10 (must match exactly)
• Propagation delay: 15 ns maximum (must match or be faster)
• Package type: 24-SOIC form factor (must match for PCB compatibility)
• Programmable type: EE PLD (must match)
• Base product series: ATF750 (must match)

The ATF750CL-15SU qualifies as a direct substitute based on identical macrocell architecture, I/O configuration, propagation delay specification, and physical package dimensions. Both devices share the same base product number (ATF750) and programmable technology platform.

Parameter Comparison

Engineering Selection Recommendations

The ATF750CL-15SU is the direct functional equivalent for the obsolete ATF750CL-15SC. Selection of the ATF750CL-15SU provides the following advantages:

• Active product status ensures continued availability and manufacturing support
• ROHS3 compliance satisfies modern environmental and regulatory requirements
• Extended operating temperature range (-40°C to 85°C) accommodates broader application environments compared to the original 0°C to 70°C specification
• Wider voltage supply tolerance (4.5V to 5.5V versus 4.75V to 5.25V) provides improved margin in power delivery circuits
• Identical macrocell, I/O, and timing specifications ensure direct functional replacement without design modification
• 24-SOIC package maintains PCB layout compatibility

Frequently Asked Questions (FAQ)

Q: Can the ATF750CL-15SU directly replace the ATF750CL-15SC on existing PCBs?

A: Yes. Both devices use the 24-SOIC package with identical pinout and physical dimensions. No PCB layout changes are required.

Q: Are the timing characteristics identical between these parts?

A: Yes. Both devices specify 15 ns maximum propagation delay (tpd). Timing-critical designs will function identically.

Q: What is the difference in voltage supply specifications?

A: The ATF750CL-15SU accepts 4.5V to 5.5V, while the ATF750CL-15SC accepts 4.75V to 5.25V. The substitute provides wider tolerance, which is beneficial for designs with variable supply conditions.

Q: Does the extended temperature range of the ATF750CL-15SU affect performance?

A: The ATF750CL-15SU operates from -40°C to 85°C versus 0°C to 70°C for the original. This extended range does not degrade performance within the original operating window and enables use in wider environmental conditions.

Q: Is RoHS compliance a functional requirement for substitution?

A: RoHS compliance is a regulatory and supply chain consideration. The ATF750CL-15SU meets ROHS3 standards, which is required for many modern applications and procurement specifications.

Q: Are the macrocell and I/O configurations identical?

A: Yes. Both devices contain 10 macrocells and 10 I/O pins. Logic density and pin configuration are identical.