74ACT16245SSC Equivalent & Substitute Parts

Part Overview

The 74ACT16245SSC is a non-inverting transceiver logic IC manufactured by onsemi, featuring 2 elements with 8 bits per element and 3-state output capability. This device 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 continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	74ACT16245SSC
Manufacturer	onsemi
Series	74ACT
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)
Package / Case	48-BSSOP (0.295", 7.50mm Width)
Mounting Type	Surface Mount
Product Status	Obsolete
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the 74ACT16245SSC 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
Current - Output High, Low: 24mA, 24mA
Operating Temperature: -40°C ~ 85°C (TA)
Package / Case: 48-BSSOP (0.295", 7.50mm Width)
Mounting Type: Surface Mount

Substitute parts are grouped into two categories:

Similar Manufacturer Parts maintain identical electrical and mechanical specifications with active or current product status from major manufacturers (Texas Instruments). These parts differ only in packaging format (Cut Tape, Digi-Reel, or Tape & Reel).

Parametric Equivalent Parts meet all core electrical and functional requirements but may originate from different manufacturers (Renesas Electronics, Cypress Semiconductor) or carry different base product numbers (74ACT16623, 74FCT series). These parts maintain the same package footprint and pin configuration.

Parameter Comparison

Part Number	Manufacturer	Series	Logic Type	Elements	Bits/Element	Output Type	Current (mA)	Supply Voltage	Temp Range (°C)	Package	Product Status
74ACT16245SSC	onsemi	74ACT	Transceiver, Non-Inverting	2	8	3-State	24, 24	4.5V ~ 5.5V	-40 ~ 85	48-BSSOP	Obsolete
74ACT16245DGGR	Texas Instruments	74ACT	Transceiver, Non-Inverting	2	8	3-State	24, 24	4.5V ~ 5.5V	-40 ~ 85	48-TFSOP	Active
74ACT16245DLR	Texas Instruments	74ACT	Transceiver, Non-Inverting	2	8	3-State	24, 24	4.5V ~ 5.5V	-40 ~ 85	48-BSSOP	Active
SN74ACT16245QDLREP	Texas Instruments	74ACT	Transceiver, Non-Inverting	2	8	3-State	16, 16	4.5V ~ 5.5V	-40 ~ 125	48-BSSOP	Active
74ACT16245DL	Texas Instruments	74ACT	Transceiver, Non-Inverting	2	8	3-State	24, 24	4.5V ~ 5.5V	-40 ~ 85	48-BSSOP	Last Time Buy
74ACT16623DL	Texas Instruments	74ACT	Transceiver, Non-Inverting	2	8	3-State	24, 24	4.5V ~ 5.5V	-40 ~ 85	48-BSSOP	Last Time Buy
74FCT162245ATPVG	Renesas Electronics	74FCT	Transceiver, Non-Inverting	2	8	3-State	24, 24	4.5V ~ 5.5V	-40 ~ 85	48-BSSOP	Obsolete
74FCT162H245ATPVC	Texas Instruments	74FCT	Transceiver, Non-Inverting	2	8	3-State	24, 24	4.5V ~ 5.5V	-40 ~ 85	48-BSSOP	Obsolete
74FCT162H245CTPVC	Cypress Semiconductor	74FCT	Transceiver, Non-Inverting	2	8	3-State	24, 24	4.5V ~ 5.5V	-40 ~ 85	48-BSSOP	Active
CY74FCT162245ATPVC	Cypress Semiconductor	74FCT	Transceiver, Non-Inverting	2	8	3-State	24, 24	4.5V ~ 5.5V	-40 ~ 85	48-BSSOP	Active
CY74FCT162245CTPVC	Texas Instruments	74FCT	Transceiver, Non-Inverting	2	8	3-State	24, 24	4.5V ~ 5.5V	-40 ~ 85	48-BSSOP	Obsolete

Engineering Selection Recommendations

For applications currently using the 74ACT16245SSC, the following selection criteria apply based on product status and compliance:

Primary Recommendation: 74ACT16245DLR (Texas Instruments) is the preferred direct substitute. This part maintains identical electrical specifications (24mA output current, -40°C to 85°C operating range) and package footprint (48-BSSOP). Active product status ensures long-term availability and supply chain stability. RoHS3 compliance supports modern manufacturing requirements.

Alternative with Extended Temperature Range: SN74ACT16245QDLREP (Texas Instruments) provides the same core functionality with an extended operating temperature range (-40°C to 125°C). Output current is reduced to 16mA, which remains suitable for most 3-state transceiver applications. This part is active and RoHS3 compliant.

Secondary Options: 74ACT16245DL and 74ACT16623DL (both Texas Instruments) are parametric equivalents with identical electrical specifications but carry Last Time Buy status, indicating limited future availability. These parts are suitable for immediate replacement but should not be selected for new long-term designs.

74FCT Series Alternatives: 74FCT162H245CTPVC (Cypress Semiconductor) and CY74FCT162245ATPVC (Cypress Semiconductor) are active products meeting all electrical requirements. The 74FCT series represents a different logic family with comparable performance characteristics. These parts are suitable for applications where supply continuity is prioritized.

Frequently Asked Questions (FAQ)

Q: Can 74ACT16245DGGR replace 74ACT16245SSC directly?

A: 74ACT16245DGGR is electrically equivalent but uses a different package variant (48-TFSOP vs. 48-BSSOP). While both are 48-pin surface mount packages with identical pin assignments, the physical dimensions differ (0.240" vs. 0.295" width). PCB layout compatibility must be verified before substitution.

Q: What is the difference between 74ACT and 74FCT series parts?

A: Both series provide non-inverting transceiver functionality with identical pin counts and electrical specifications for this application. The 74FCT series represents a different logic family. Selection between series should be based on supply availability and design requirements, as both meet the core functional parameters.

Q: Is SN74ACT16245QDLREP suitable as a replacement despite lower output current?

A: SN74ACT16245QDLREP provides 16mA output current versus the original 24mA specification. This reduction is acceptable for most 3-state transceiver applications where output loading does not require maximum current drive. The extended temperature range (-40°C to 125°C) provides additional operational margin. Application-specific load analysis is required to confirm suitability.

Q: Why are some substitute parts marked as obsolete?

A: Obsolete parts (74ACT16245SSC, 74FCT162245ATPVG, 74FCT162H245ATPVC, CY74FCT162245CTPVC) are no longer manufactured but may remain available through inventory channels. These parts should not be selected for new designs. Active or Last Time Buy status parts are preferred for design continuity.

Q: What does RoHS3 compliance mean for this part?

A: RoHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting lead and other hazardous materials. This certification is required for many modern manufacturing and end-market applications. All recommended substitute parts carry RoHS3 compliance.

Q: Are there package considerations when selecting a substitute?

A: Yes. The 74ACT16245DGGR uses 48-TFSOP packaging (0.240" width) while the original and most substitutes use 48-BSSOP (0.295" width). Physical package dimensions affect PCB footprint and layout. Verify PCB design compatibility before selecting 48-TFSOP variants. Pin assignments remain identical across all package variants.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message