74ACTQ16245SSCX Equivalent & Substitute Parts

Part Overview

The 74ACTQ16245SSCX 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 logic IC operates at 4.5V to 5.5V supply voltage with output drive capability of 24mA (high and low). The device is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Substiute Parts

74ACTQ16245SSCX

onsemiIn Stock: 88574ACTQ16245SSCX 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 74ACTQ16245SSCX is determined by the following critical parameters:

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

Substitute parts are grouped into two categories:

Direct Substitutes (Same Base Functionality): Parts with identical electrical specifications and package form factor, differing only in manufacturer or packaging format.

Parametric Equivalents (Functional Compatibility): Parts with the same logic type, element count, bit configuration, and output characteristics, meeting or exceeding the original specifications within the allowed parameter range.

Parameter Comparison

Engineering Selection Recommendations

Preferred Substitutes (Active Product Status):

74ACT16245DLR (Texas Instruments) is the primary recommended substitute. It maintains identical electrical specifications (24mA output current, 4.5V–5.5V supply, -40°C to 85°C operating range) and package form factor (48-BSSOP) as the original 74ACTQ16245SSCX. Active product status ensures long-term availability and supply chain stability. RoHS3 compliance is confirmed.

74FCT162245ATPVCT and CY74FCT162245TPVCT (Cypress Semiconductor Corp) are functionally equivalent alternatives with active status. Both maintain the same electrical specifications and 48-BSSOP package. These parts provide additional sourcing options with confirmed availability.

Secondary Substitutes (Limited Availability):

74ACT16245DGGR (Texas Instruments) is active but uses a 48-TFSOP package variant (0.240", 6.10mm width) instead of the standard 48-BSSOP. This package difference requires PCB layout verification before implementation.

SN74ACT16245QDLREP (Texas Instruments) is active with extended temperature range (-40°C to 125°C) but features reduced output current (16mA vs. 24mA). This reduced drive capability may impact circuit performance in high-capacitance or low-impedance load conditions.

Not Recommended:

74ACT16245DL (Last Time Buy status) and 74ACT16623DLR (Obsolete status) should be avoided for new designs due to limited future availability.

Frequently Asked Questions (FAQ)

Q: Can 74ACT16245DLR directly replace 74ACTQ16245SSCX without circuit modification?

A: Yes. The 74ACT16245DLR maintains identical electrical specifications (24mA output current, 4.5V–5.5V supply voltage, -40°C to 85°C operating temperature) and the same 48-BSSOP package form factor. No circuit redesign is required.

Q: What is the difference between 74ACT16245DGGR and 74ACT16245DLR?

A: Both parts are functionally equivalent with identical electrical specifications. The primary difference is packaging: 74ACT16245DGGR uses a 48-TFSOP package (0.240" width), while 74ACT16245DLR uses a 48-BSSOP package (0.295" width). PCB footprint compatibility must be verified before substitution.

Q: Can SN74ACT16245QDLREP be used as a substitute despite lower output current?

A: SN74ACT16245QDLREP provides 16mA output current versus the original 24mA specification. Substitution is only valid if circuit load impedance and capacitance allow operation within the reduced drive capability. Extended temperature range (-40°C to 125°C) may provide benefits in thermal-constrained applications.

Q: Are Cypress Semiconductor parts (74FCT162245ATPVCT, CY74FCT162245TPVCT) compatible?

A: Yes. Both Cypress parts maintain identical electrical specifications and 48-BSSOP package form factor. They are functionally equivalent to the original 74ACTQ16245SSCX and provide alternative sourcing channels with active product status.

Q: Why is 74ACT16245DL not recommended despite matching specifications?

A: 74ACT16245DL carries Last Time Buy status, indicating limited remaining inventory and no future production. For designs requiring long-term component availability, active-status alternatives (74ACT16245DLR, 74FCT162245ATPVCT, CY74FCT162245TPVCT) are preferred.

Q: What compliance certifications apply to substitute parts?

A: All recommended substitutes maintain RoHS3 compliance, REACH unaffected status, and identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications as the original part. Moisture sensitivity level remains MSL 1 (Unlimited) across all substitutes.