74VCX162245MTDX Equivalent & Substitute Parts

Part Overview

The 74VCX162245MTDX is a non-inverting transceiver IC manufactured by onsemi, featuring 2 elements with 8 bits per element and 3-state output capability. This device operates across a supply voltage range of 1.4V to 3.6V and is housed in a 48-TSSOP package. The product is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Key Parameters

Parameter	Value
Manufacturer Part Number	74VCX162245MTDX
Manufacturer	onsemi
Logic Type	Transceiver, Non-Inverting
Number of Elements	2
Number of Bits per Element	8
Output Type	3-State
Current - Output High, Low	12mA, 12mA / 24mA, 24mA
Voltage - Supply	1.4V ~ 3.6V
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	48-TFSOP (0.240", 6.10mm Width)
Mounting Type	Surface Mount
Product Status	Obsolete
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the 74VCX162245MTDX is determined by the following critical parameters:

Logic Architecture: Transceiver, Non-Inverting configuration with 2 elements and 8 bits per element
Output Configuration: 3-State output capability
Package Compatibility: 48-TFSOP (0.240", 6.10mm Width) surface mount package
Electrical Compatibility: Supply voltage range overlap and output current ratings
Operating Temperature Range: -40°C to 85°C (TA)

The substitute parts identified maintain functional equivalence through identical logic topology, pin configuration, and package form factor. Voltage supply ranges may vary within acceptable overlap margins, and product status transitions from obsolete to active alternatives ensure long-term availability.

Parameter Comparison

Parameter	74VCX162245MTDX (onsemi)	74ALVCH162245DGG:1 (Nexperia)	74ALVC162245PAG8 (IDT)	SN74ALVCHR16245GR (Texas Instruments)
Logic Type	Transceiver, Non-Inverting	Transceiver, Non-Inverting	Transceiver, Non-Inverting	Transceiver, Non-Inverting
Number of Elements	2	2	2	2
Number of Bits per Element	8	8	8	8
Output Type	3-State	3-State	3-State	3-State
Current - Output High, Low	12mA, 12mA / 24mA, 24mA	12mA, 12mA	12mA, 12mA / 24mA, 24mA	12mA, 12mA
Voltage - Supply	1.4V ~ 3.6V	1.2V ~ 3.6V	2.7V ~ 3.6V	1.65V ~ 3.6V
Operating Temperature	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Package / Case	48-TFSOP (0.240", 6.10mm Width)	48-TFSOP (0.240", 6.10mm Width)	48-TFSOP (0.240", 6.10mm Width)	48-TFSOP (0.240", 6.10mm Width)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Active	Active	Active

Engineering Selection Recommendations

Direct Substitute (Recommended Primary Choice): The 74ALVCH162245DGG:1 from Nexperia USA Inc. is the direct functional equivalent. This part maintains identical logic architecture, pin configuration, and package specifications. The device is in active production status with RoHS3 compliance certification, ensuring long-term availability and regulatory alignment. Supply voltage range (1.2V ~ 3.6V) encompasses the original specification.

Alternative Substitutes: The SN74ALVCHR16245GR from Texas Instruments provides equivalent functionality with active product status and RoHS3 compliance. Supply voltage range (1.65V ~ 3.6V) overlaps the original specification within acceptable operating margins.

The 74ALVC162245PAG8 from IDT offers functional equivalence with active product status. Note that the supply voltage range (2.7V ~ 3.6V) is narrower than the original specification and may not support lower voltage applications below 2.7V.

All substitute parts maintain identical operating temperature ranges, output configurations, and package form factors, ensuring direct PCB compatibility without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the 74ALVCH162245DGG:1 be used as a direct replacement for the 74VCX162245MTDX? A: Yes. Both devices share identical logic topology (non-inverting transceiver, 2 elements, 8 bits per element), 3-state output configuration, and 48-TFSOP package specifications. The supply voltage range of the Nexperia part (1.2V ~ 3.6V) fully encompasses the original specification (1.4V ~ 3.6V).

Q: What are the key differences between the substitute options? A: The primary differences are manufacturer, product status (all substitutes are active), and supply voltage ranges. The Nexperia 74ALVCH162245DGG:1 offers the widest voltage range (1.2V ~ 3.6V). The IDT 74ALVC162245PAG8 has a narrower range (2.7V ~ 3.6V) and may not be suitable for low-voltage applications. Texas Instruments SN74ALVCHR16245GR operates from 1.65V ~ 3.6V.

Q: Are there packaging differences between the main part and substitutes? A: No. All parts use the 48-TFSOP (0.240", 6.10mm Width) surface mount package with identical pin configurations, enabling direct PCB substitution without layout changes.

Q: What compliance certifications apply to the substitute parts? A: The 74ALVCH162245DGG:1 and SN74ALVCHR16245GR both carry RoHS3 compliance certification. All substitute parts are REACH Unaffected and classified under ECCN EAR99 with HTSUS code 8542.39.0001, matching the original part's regulatory status.

Q: Can I use the 74ALVC162245PAG8 in a 1.4V supply voltage application? A: No. The 74ALVC162245PAG8 has a minimum supply voltage of 2.7V, which exceeds the 1.4V lower limit of the original 74VCX162245MTDX. For applications requiring operation below 2.7V, use the 74ALVCH162245DGG:1 or SN74ALVCHR16245GR.

Q: Are all substitute parts available in the same packaging options? A: The 74ALVCH162245DGG:1 is available in Tape & Reel (TR) packaging. The 74ALVC162245PAG8 is available in Bulk packaging. The SN74ALVCHR16245GR is available in Tape & Reel (TR) packaging. Verify packaging availability with your supplier for specific procurement requirements.

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