74ACT16245SSCX Equivalent & Substitute Parts

Part Overview

The 74ACT16245SSCX is a non-inverting 16-bit bus transceiver manufactured by onsemi, featuring 2 elements with 8 bits per element and 3-state output capability. This component operates within the 4.5V to 5.5V supply voltage range and is housed in a 48-SSOP package. The part is currently classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Substiute Parts

74ACT16245SSCX

onsemiIn Stock: 78174ACT16245SSCX Datasheet

Current PartRFQ

74ACT16245DGGR

Texas InstrumentsIn Stock: 202174ACT16245DGGR Datasheet

SimilarRFQ

74ACT16245DL

Texas InstrumentsIn Stock: 386374ACT16245DL Datasheet

SimilarRFQ

SN74ACT16245QDLREP

Texas InstrumentsIn Stock: 2204SN74ACT16245QDLREP Datasheet

SimilarRFQ

74ACT16245DLR

Texas InstrumentsIn Stock: 431574ACT16245DLR Datasheet

Parametric EquivalentRFQ

74ACT16623DLR

Texas InstrumentsIn Stock: 70574ACT16623DLR Datasheet

Parametric EquivalentRFQ

74FCT162245ATPVCT

Cypress Semiconductor CorpIn Stock: 207574FCT162245ATPVCT Datasheet

Parametric EquivalentRFQ

CY74FCT162245TPVCT

Cypress Semiconductor CorpIn Stock: 7749CY74FCT162245TPVCT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 74ACT16245SSCX is determined by strict equivalence across the following critical parameters:

• Logic Type: Transceiver, Non-Inverting
• Number of Elements: 2
• Number of Bits per Element: 8
• Output Type: 3-State
• Voltage - Supply: 4.5V ~ 5.5V
• Operating Temperature: -40°C ~ 85°C (TA)
• Current - Output High, Low: 24mA, 24mA
• Package / Case: 48-BSSOP (0.295", 7.50mm Width)

Substitute parts are grouped into two categories:

Direct Substitutes (Same Package, Same Electrical Specifications): Parts that maintain identical electrical performance and physical packaging, differing only in manufacturer or product status.

Parametric Equivalents (Same Electrical Specifications, Alternative Packaging or Series): Parts that meet all electrical requirements but may differ in packaging format, series designation, or manufacturer, while maintaining functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

For Active Production: 74ACT16245DLR (Texas Instruments) is the primary recommendation. This part maintains full electrical equivalence with the original 74ACT16245SSCX, operates in the same temperature range, and is currently in active production status with robust inventory availability (4302 pcs). The 48-BSSOP package matches the original footprint exactly.

For Extended Temperature Range: SN74ACT16245QDLREP (Texas Instruments) extends the operating temperature range to -40°C ~ 125°C and maintains active product status. Note that output current is reduced to 16mA per channel. This part is suitable for applications requiring enhanced thermal performance.

For Alternative Series Compatibility: 74FCT162245ATPVCT and CY74FCT162245TPVCT (Cypress Semiconductor Corp) provide parametric equivalence within the 74FCT series. Both maintain identical electrical specifications and package dimensions, with active product status and substantial inventory.

For Package Variant: 74ACT16245DGGR (Texas Instruments) offers the same electrical specifications in a 48-TFSOP package (0.240", 6.10mm width), providing a narrower footprint alternative while maintaining active production status.

Avoid: 74ACT16623DLR is classified as obsolete and should not be selected for new designs despite parametric equivalence.

Frequently Asked Questions (FAQ)

Q: Can 74ACT16245DLR directly replace 74ACT16245SSCX without circuit modification?

A: Yes. The 74ACT16245DLR maintains identical electrical specifications (24mA output current, 4.5V ~ 5.5V supply, -40°C ~ 85°C operating range) and uses the same 48-BSSOP package footprint. No circuit modifications are required.

Q: What is the difference between 74ACT16245DL and 74ACT16245DLR?

A: Both parts are electrically identical and use the same 48-BSSOP package. The primary difference is packaging format: 74ACT16245DL is supplied in Tube packaging, while 74ACT16245DLR is supplied in Cut Tape & Digi-Reel format. Selection depends on assembly process requirements.

Q: Why does SN74ACT16245QDLREP show different output current (16mA vs 24mA)?

A: SN74ACT16245QDLREP is a variant with reduced output current specifications. While it maintains the same logic function and package, the lower current rating may affect drive capability in high-current applications. Verify circuit requirements before substitution.

Q: Are 74FCT162245ATPVCT and CY74FCT162245TPVCT suitable replacements?

A: Yes, both Cypress parts are parametric equivalents with identical electrical specifications and package dimensions. The 74FCT series represents an alternative logic family with equivalent performance characteristics. Both are in active production.

Q: What is the significance of the 48-TFSOP package variant (74ACT16245DGGR)?

A: The 48-TFSOP package is narrower (0.240" vs 0.295" width) than the standard 48-BSSOP, providing a space-saving alternative. Electrical specifications remain identical. PCB layout modifications may be required to accommodate the different package footprint.

Q: Which substitute part has the best inventory availability?

A: CY74FCT162245TPVCT (Cypress) offers the highest inventory level at 7645 pcs. For the 74ACT series specifically, 74ACT16245DLR (Texas Instruments) provides strong availability at 4302 pcs.

Q: Is RoHS compliance a factor in selecting substitutes?

A: Yes. Most active substitute parts carry RoHS3 compliance certification. The original 74ACT16245SSCX does not specify RoHS status. Verify compliance requirements for your application before final selection.