74ALVT162240DL,112 Equivalent & Substitute Parts

Part Overview

The 74ALVT162240DL,112 is a 4-element, 4-bit inverting buffer IC with 3-state output capability, manufactured by NXP USA Inc. in a 48-SSOP package. This component operates across dual voltage supply ranges (2.3V–2.7V and 3V–3.6V) and is rated for industrial temperature environments (-40°C to 85°C). The part is classified as obsolete, making equivalent substitutes necessary for ongoing design support and procurement.

Key Parameters

Parameter	Specification
Logic Type	Buffer, Inverting
Number of Elements	4
Number of Bits per Element	4
Output Type	3-State
Voltage Supply Range	2.3V–2.7V, 3V–3.6V
Operating Temperature	-40°C to 85°C (TA)
Package Type	48-BSSOP (0.295", 7.50mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the 74ALVT162240DL,112 is determined by the following criteria:

Functional Equivalence: All substitute parts maintain identical logic configuration (4-element, 4-bit inverting buffer with 3-state output).

Voltage Compatibility: All substitutes operate within the specified supply voltage ranges (2.3V–2.7V and 3V–3.6V), ensuring direct replacement capability in existing circuits.

Temperature Rating: All substitutes maintain the -40°C to 85°C operating temperature specification.

Package Compatibility: Substitutes are grouped by package type. The primary substitute group uses the 48-BSSOP package (identical to the main part). Secondary substitutes employ 48-TSSOP and 48-TVSOP packages, which differ in physical dimensions but maintain electrical compatibility through identical pinout and functional behavior.

Compliance Standards: All substitutes maintain ROHS3 compliance and MSL Level 1 rating, ensuring environmental and moisture sensitivity equivalence.

Parameter Comparison

Part Number	Manufacturer	Series	Package Type	Current Output (High/Low)	Voltage Supply	Product Status	Inventory
74ALVT162240DL,112	NXP USA Inc.	74ALVT	48-BSSOP	12mA / 12mA	2.3V–2.7V, 3V–3.6V	Obsolete	748 Pcs
SN74ALVTH16240DL	Texas Instruments	74ALVTH	48-BSSOP	32mA / 64mA	2.3V–2.7V, 3V–3.6V	Obsolete	1360 Pcs
SN74ALVTH16240DLR	Texas Instruments	74ALVTH	48-BSSOP	32mA / 64mA	2.3V–2.7V, 3V–3.6V	Discontinued at DiGi Electronics	959 Pcs
SN74ALVTH16240GR	Texas Instruments	74ALVTH	48-TSSOP	32mA / 64mA	2.3V–2.7V, 3V–3.6V	Obsolete	1047 Pcs
SN74ALVTH16240VR	Texas Instruments	74ALVTH	48-TVSOP	32mA / 64mA	2.3V–2.7V, 3V–3.6V	Discontinued at DiGi Electronics	3116 Pcs
SN74LVT162240DL	Texas Instruments	74LVT	48-BSSOP	12mA / 12mA	2.7V–3.6V	Active	1230 Pcs

Engineering Selection Recommendations

Primary Substitute (Package-Matched): SN74ALVTH16240DL is the recommended direct replacement. It maintains the 48-BSSOP package footprint, operates within identical voltage and temperature specifications, and is available in higher inventory quantities (1360 pcs). The increased output current capability (32mA/64mA vs. 12mA/12mA) provides enhanced drive capability without compromising compatibility.

Alternative with Active Status: SN74LVT162240DL offers the advantage of active product status, ensuring long-term availability and manufacturing support. This part maintains identical output current specifications (12mA/12mA) and the 48-BSSOP package. The voltage supply range is narrower (2.7V–3.6V), excluding the 2.3V–2.7V band; verify circuit requirements before selection.

Package Variants: SN74ALVTH16240GR (48-TSSOP) and SN74ALVTH16240VR (48-TVSOP) provide functional equivalence with different physical package dimensions. These are suitable only when PCB layout accommodates the alternative package footprints.

All substitutes maintain ROHS3 compliance and MSL Level 1 rating, ensuring regulatory and environmental equivalence with the original part.

Frequently Asked Questions (FAQ)

Q: Can SN74ALVTH16240DL replace 74ALVT162240DL,112 directly on the PCB?

A: Yes, SN74ALVTH16240DL is a direct replacement. Both parts use the 48-BSSOP package with identical pinout and electrical specifications. The increased output current (32mA/64mA) is backward-compatible with circuits designed for 12mA/12mA output.

Q: What is the difference between the 74ALVTH and 74LVT series?

A: Both series are inverting buffer ICs with identical logic configuration and package options. The 74ALVTH series (Texas Instruments) provides higher output current capability (32mA/64mA). The 74LVT series maintains the original output current specification (12mA/12mA) and is currently in active production status.

Q: Can I use SN74ALVTH16240GR or SN74ALVTH16240VR as substitutes?

A: These parts are functionally equivalent but use different package types (48-TSSOP and 48-TVSOP respectively). They are suitable only if your PCB layout can accommodate the alternative package footprints. Verify pad spacing and component placement before selection.

Q: Does the voltage supply range difference in SN74LVT162240DL affect compatibility?

A: SN74LVT162240DL operates at 2.7V–3.6V, excluding the 2.3V–2.7V band supported by the original part. If your circuit operates exclusively within the 2.7V–3.6V range, this part is fully compatible. If lower voltage operation (2.3V–2.7V) is required, use SN74ALVTH16240DL instead.

Q: Are all substitute parts RoHS3 compliant?

A: Yes, all listed substitutes maintain ROHS3 compliance and MSL Level 1 rating, matching the environmental and regulatory specifications of the original 74ALVT162240DL,112.

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