74ABT162244CSSX Equivalent & Substitute Parts

Part Overview

The 74ABT162244CSSX is a non-inverting buffer logic IC manufactured by onsemi, featuring 4 elements with 4 bits per element and 3-state output capability. This component is rated for 4.5V to 5.5V supply voltage operation across the -40°C to 85°C temperature range. The part is currently classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	74ABT162244CSSX
Manufacturer	onsemi
Series	74ABT
Logic Type	Buffer, Non-Inverting
Number of Elements	4
Number of Bits per Element	4
Output Type	3-State
Current - Output High, Low	32mA, 12mA
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)
Product Status	Obsolete
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the 74ABT162244CSSX is determined by the following critical parameters:

Logic Function: Buffer, Non-Inverting with 4 elements, 4 bits per element, 3-state output
Electrical Specifications: Voltage supply range 4.5V to 5.5V, operating temperature -40°C to 85°C
Output Current Capability: Minimum 32mA high output, 12mA low output
Package Compatibility: 48-pin surface mount packages (SSOP or TSSOP variants)
Product Status: Active status preferred for long-term availability

Substitute parts are grouped into two categories based on package type: 48-SSOP (0.295" width) and 48-TSSOP (0.240" width). Both package types are mechanically and electrically compatible with the original design, with TSSOP offering a more compact footprint.

Parameter Comparison

Part Number	Manufacturer	Logic Type	Elements / Bits	Output Current (High/Low)	Supply Voltage	Temp Range	Package	Status
74ABT162244CSSX	onsemi	Buffer, Non-Inverting	4 / 4	32mA / 12mA	4.5V ~ 5.5V	-40°C ~ 85°C	48-BSSOP	Obsolete
74ABT162244DGG,118	NXP USA Inc.	Buffer, Non-Inverting	4 / 4	32mA / 12mA	4.5V ~ 5.5V	-40°C ~ 85°C	48-TSSOP	Active
74ABT16244ADGG,118	NXP Semiconductors	Buffer, Non-Inverting	4 / 4	32mA / 64mA	4.5V ~ 5.5V	-40°C ~ 85°C	48-TSSOP	Active
SN74ABT162244DGG	Texas Instruments	Buffer, Non-Inverting	4 / 4	12mA / 12mA	4.5V ~ 5.5V	-40°C ~ 85°C	48-TSSOP	Active
SN74ABT162244DGGR	Texas Instruments	Buffer, Non-Inverting	4 / 4	12mA / 12mA	4.5V ~ 5.5V	-40°C ~ 85°C	48-TSSOP	Active
SN74ABT162244DGVR	Texas Instruments	Buffer, Non-Inverting	4 / 4	12mA / 12mA	4.5V ~ 5.5V	-40°C ~ 85°C	48-TVSOP	Active
SN74ABT162244DL	Texas Instruments	Buffer, Non-Inverting	4 / 4	12mA / 12mA	4.5V ~ 5.5V	-40°C ~ 85°C	48-BSSOP	Active
SN74ABT162244DLR	Texas Instruments	Buffer, Non-Inverting	4 / 4	12mA / 12mA	4.5V ~ 5.5V	-40°C ~ 85°C	48-BSSOP	Active
SN74ABT16244ADGG	Texas Instruments	Buffer, Non-Inverting	4 / 4	32mA / 64mA	4.5V ~ 5.5V	-40°C ~ 85°C	48-TSSOP	Active
SN74ABT16244ADGGR	Texas Instruments	Buffer, Non-Inverting	4 / 4	32mA / 64mA	4.5V ~ 5.5V	-40°C ~ 85°C	48-TSSOP	Active
SN74ABT16244ADGVR	Texas Instruments	Buffer, Non-Inverting	4 / 4	32mA / 64mA	4.5V ~ 5.5V	-40°C ~ 85°C	48-TVSOP	Active

Engineering Selection Recommendations

For designs currently using the obsolete 74ABT162244CSSX, the following selection criteria apply:

Package Compatibility: The SN74ABT162244DL and SN74ABT162244DLR from Texas Instruments maintain the original 48-BSSOP package footprint, enabling direct PCB substitution without layout modifications. Both parts are active status with RoHS3 compliance.

Compact Package Alternative: The 74ABT162244DGG,118 from NXP USA Inc. and SN74ABT162244DGG from Texas Instruments provide 48-TSSOP packaging for space-constrained applications. These parts maintain electrical equivalence while reducing board area.

Enhanced Output Current: The 74ABT16244ADGG,118 from NXP Semiconductors and SN74ABT16244ADGG from Texas Instruments offer increased output current capability (32mA high, 64mA low) compared to the original specification, suitable for applications requiring higher drive capability.

Tape & Reel Packaging: Parts designated with suffix "R" (DGGR, ADGGR, ADGVR) are supplied in tape and reel format for automated assembly processes.

All active substitute parts maintain the 4.5V to 5.5V supply voltage range and -40°C to 85°C operating temperature specification of the original component.

Frequently Asked Questions (FAQ)

Q: Can I use SN74ABT162244DL as a direct replacement for 74ABT162244CSSX?

A: Yes. Both parts use the 48-BSSOP package with identical pinout and electrical specifications. The SN74ABT162244DL is active status with RoHS3 compliance and REACH unaffected certification.

Q: What is the difference between 48-SSOP and 48-TSSOP packages?

A: The 48-BSSOP package is 0.295" wide (7.50mm), while the 48-TSSOP package is 0.240" wide (6.10mm). Both are 48-pin surface mount packages with the same pin pitch and electrical compatibility. TSSOP offers a more compact footprint for space-constrained designs.

Q: Are there output current differences between substitute parts?

A: Yes. The original 74ABT162244CSSX specifies 32mA high output and 12mA low output. Substitute parts from Texas Instruments (SN74ABT162244 series) specify 12mA for both high and low output. The NXP 74ABT16244ADGG,118 and Texas Instruments SN74ABT16244ADGG series provide 32mA high and 64mA low output. Verify your application's current requirements before selection.

Q: What does the "R" suffix indicate in part numbers like SN74ABT162244DGGR?

A: The "R" suffix indicates tape and reel packaging, suitable for automated pick-and-place assembly. Equivalent parts without the "R" suffix are available in tube or bulk packaging.

Q: Are all substitute parts RoHS compliant?

A: All active substitute parts listed are RoHS3 compliant. The original 74ABT162244CSSX from onsemi does not specify RoHS status as it is obsolete.

Q: Which substitute part offers the best long-term availability?

A: Texas Instruments and NXP Semiconductors maintain active production status for all listed substitute parts. Both manufacturers provide extensive inventory and established distribution channels for the 74ABT series logic buffers.

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