CY74FCT240CTSOCT Equivalent & Substitute Parts

Part Overview

The CY74FCT240CTSOCT is a Buffer, Inverting logic IC manufactured by Texas Instruments, featuring 2 elements with 4 bits per element and 3-state output capability in a 20-SOIC package. This component operates within a 4.75V to 5.25V supply voltage range and is rated for -40°C to 85°C operating temperature. The part is currently classified as Obsolete, making identification of equivalent substitute parts essential for ongoing design support and procurement continuity.

Substiute Parts

CY74FCT240CTSOCT

Texas InstrumentsIn Stock: 976CY74FCT240CTSOCT Datasheet

Current PartRFQ

CY74FCT240ATSOCT

Texas InstrumentsIn Stock: 3484CY74FCT240ATSOCT Datasheet

Parametric EquivalentRFQ

CY74FCT240TSOCT

Texas InstrumentsIn Stock: 2935CY74FCT240TSOCT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CY74FCT240CTSOCT are identified based on strict parametric equivalence across the following critical criteria:

• Logic Type: Buffer, Inverting
• Number of Elements: 2
• Number of Bits per Element: 4
• Output Type: 3-State
• Current Ratings: 32mA (High), 64mA (Low)
• Supply Voltage Range: 4.75V ~ 5.25V
• Operating Temperature Range: -40°C ~ 85°C
• Package / Case: 20-SOIC (0.295", 7.50mm Width)
• Mounting Type: Surface Mount
• Base Product Number: 74FCT240

The identified substitutes maintain identical electrical and mechanical specifications, ensuring direct functional compatibility. Differences in product status and packaging format (Tape & Reel versus bulk) do not affect electrical performance or pin-level compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both CY74FCT240ATSOCT and CY74FCT240TSOCT are parametrically equivalent to the CY74FCT240CTSOCT and provide direct substitution capability. The primary distinction is product status: the original part is Obsolete, while both substitute parts maintain Active status with current manufacturing support.

For new designs or ongoing production requiring this logic buffer function, CY74FCT240ATSOCT or CY74FCT240TSOCT are recommended selections. Both substitutes are ROHS3 Compliant and REACH Unaffected, meeting current regulatory requirements. The choice between these two substitutes may be determined by packaging preference (Tape & Reel format) and inventory availability, as electrical and mechanical specifications are identical.

Frequently Asked Questions (FAQ)

Q: Can CY74FCT240ATSOCT or CY74FCT240TSOCT be used as direct replacements for CY74FCT240CTSOCT?

A: Yes. Both parts are parametrically equivalent across all critical electrical and mechanical specifications, including logic function, output drive capability, supply voltage range, operating temperature range, and 20-SOIC package dimensions. Pin-level compatibility is maintained.

Q: What is the difference between CY74FCT240ATSOCT and CY74FCT240TSOCT?

A: Both parts are electrically and mechanically identical. The difference lies in packaging format: both are supplied in Tape & Reel (TR) format. Inventory levels differ, with CY74FCT240ATSOCT at 3400 pcs and CY74FCT240TSOCT at 2900 pcs in stock.

Q: Why is the original CY74FCT240CTSOCT classified as Obsolete?

A: Product status reflects manufacturing lifecycle decisions by Texas Instruments. Active substitutes with identical specifications are available to support continued system design and production requirements.

Q: Are there any compliance or certification differences between these parts?

A: No. All three parts maintain identical RoHS3 Compliance, REACH Unaffected status, and Moisture Sensitivity Level (MSL) 1 rating. Regulatory and environmental compliance requirements are equivalent.

Q: What are the key parameters that determine substitutability for this part?

A: Substitutability is determined by: logic type (Buffer, Inverting), element count (2), bits per element (4), output type (3-State), output current ratings (32mA/64mA), supply voltage range (4.75V–5.25V), operating temperature range (-40°C to 85°C), package type (20-SOIC), and mounting method (Surface Mount).