74LCX16373MEAX Equivalent & Substitute Parts

Part Overview

The 74LCX16373MEAX is a D-Type Transparent Latch IC with 16-bit capacity, dual 8:8 channel configuration, and tri-state output capability. Manufactured by onsemi in 48-SSOP packaging, this component operates across a 2V to 3.6V supply voltage range with 5.4ns propagation delay. The part is currently listed as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	74LCX16373MEAX
Manufacturer	onsemi
Logic Type	D-Type Transparent Latch
Circuit Configuration	8:8 (2 Independent Channels)
Output Type	Tri-State
Voltage Supply Range	2V ~ 3.6V
Propagation Delay	5.4ns
Output Current	24mA (High), 24mA (Low)
Operating Temperature	-40°C ~ 85°C
Package Type	48-BSSOP (0.295", 7.50mm Width)
Mounting Type	Surface Mount
Product Status	Obsolete
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the 74LCX16373MEAX is determined by the following critical parameters:

Functional Equivalence Requirements:

Logic type: D-Type Transparent Latch
Circuit configuration: 8:8 (dual independent channels)
Output type: Tri-State
Independent circuits: 2 channels

Electrical Compatibility Requirements:

Voltage supply range: Must support 2V ~ 3.6V operation
Output current capability: Minimum 24mA (High and Low)
Propagation delay: Performance characteristic (5.4ns baseline)

Physical Compatibility Requirements:

Package type: 48-pin SSOP or TSSOP variants
Mounting type: Surface Mount
Pin count: 48 pins

Compliance Requirements:

Moisture Sensitivity Level: 1 (Unlimited)
REACH Status: REACH Unaffected
ECCN: EAR99

Substitute parts are grouped into two categories: direct functional equivalents with identical channel configuration (2 channels) and alternative variants with modified channel architecture (1 channel) that maintain core latch functionality.

Parameter Comparison

Part Number	Manufacturer	Logic Type	Channels	Voltage Range	Propagation Delay	Output Current	Operating Temp	Package	Product Status
74LCX16373MEAX	onsemi	D-Type Transparent Latch	2 (8:8)	2V ~ 3.6V	5.4ns	24mA / 24mA	-40°C ~ 85°C	48-BSSOP	Obsolete
M74LCX16373DTR2G	onsemi	D-Type Transparent Latch	2 (8:8)	2V ~ 3.6V	5.4ns	24mA / 24mA	-55°C ~ 125°C	48-TFSOP	Active
MC74LCX16373DTG	onsemi	D-Type Transparent Latch	2 (8:8)	2V ~ 3.6V	5.4ns	24mA / 24mA	-55°C ~ 125°C	48-TFSOP	Active
74LVC16373ADGGRG4	Texas Instruments	D-Type Transparent Latch	2 (8:8)	1.65V ~ 3.6V	2.1ns	24mA / 24mA	-40°C ~ 85°C	48-TFSOP	Discontinued
74LVC16373APAG	Renesas Electronics	D-Type Transparent Latch	2 (8:8)	1.65V ~ 3.6V	2.1ns	24mA / 24mA	-40°C ~ 85°C	48-TFSOP	Obsolete
74LVC16373APVG	IDT	D-Type Transparent Latch	2 (8:8)	2.3V ~ 3.6V	2.1ns	24mA / 24mA	-40°C ~ 85°C	48-BSSOP	Active
SN74LVC16373ADGVR	Texas Instruments	D-Type Transparent Latch	2 (8:8)	1.65V ~ 3.6V	2.1ns	24mA / 24mA	-40°C ~ 85°C	48-TFSOP	Active
SN74LVC16373ADL	Texas Instruments	D-Type Transparent Latch	2 (8:8)	1.65V ~ 3.6V	2.1ns	24mA / 24mA	-40°C ~ 85°C	48-BSSOP	Active
SN74LVC16373ADLR	Texas Instruments	D-Type Transparent Latch	2 (8:8)	1.65V ~ 3.6V	2.1ns	24mA / 24mA	-40°C ~ 85°C	48-BSSOP	Active
CLVC16373AMDLREP	Texas Instruments	D-Type Transparent Latch	1 (8:8)	1.65V ~ 3.6V	1.3ns	24mA / 24mA	-55°C ~ 125°C	48-BSSOP	Active

Engineering Selection Recommendations

Primary Substitutes (Active Status, Full Compatibility):

SN74LVC16373ADLR and SN74LVC16373ADL (Texas Instruments) are the preferred substitutes. Both maintain the dual 8:8 channel configuration, tri-state output, and 48-BSSOP package footprint. These parts support the 2V ~ 3.6V supply range required by the original design and are currently in active production status. The extended operating temperature range (-40°C ~ 85°C) matches the original specification.

M74LCX16373DTR2G and MC74LCX16373DTG (onsemi) provide functional equivalence with identical propagation delay (5.4ns) and voltage range. Both are active products from the original manufacturer. Package variants (48-TFSOP) require PCB layout adjustment but maintain electrical compatibility.

74LVC16373APVG (IDT) offers the same 48-BSSOP package as the original part with active product status. Voltage range (2.3V ~ 3.6V) is compatible with designs operating above 2.3V.

Alternative Substitutes (Discontinued or Obsolete Status):

74LVC16373ADGGRG4 (Texas Instruments) and 74LVC16373APAG (Renesas Electronics) maintain full functional equivalence but are listed as discontinued or obsolete. These parts should be considered only when active alternatives are unavailable.

Limited Substitutes (Single Channel Configuration):

CLVC16373AMDLREP (Texas Instruments) features a single 8:8 channel configuration instead of dual channels. This part is suitable only for applications requiring single-channel latch functionality and cannot serve as a direct replacement for dual-channel designs.

Compliance Considerations:

All substitute parts maintain REACH Unaffected status and EAR99 ECCN classification. Parts with RoHS3 compliance designation provide additional environmental compliance for regulated applications.

Frequently Asked Questions (FAQ)

Q: Can I use SN74LVC16373ADLR as a direct replacement for 74LCX16373MEAX?

A: Yes. Both parts feature D-Type Transparent Latch logic with dual 8:8 channel configuration, tri-state output, and 48-BSSOP packaging. The SN74LVC16373ADLR supports the 2V ~ 3.6V supply range and maintains 24mA output current specifications. The part is in active production status.

Q: What is the difference between 48-BSSOP and 48-TFSOP packages?

A: Both are 48-pin surface mount packages with different physical dimensions. 48-BSSOP measures 0.295" (7.50mm) width, while 48-TFSOP measures 0.240" (6.10mm) width. Electrical functionality is identical; package selection depends on PCB layout constraints and available footprint space.

Q: Why is CLVC16373AMDLREP listed as a substitute if it has only one channel?

A: CLVC16373AMDLREP maintains the core D-Type Transparent Latch functionality and tri-state output capability. It is listed as a substitute for applications requiring single-channel operation. Designs requiring dual-channel functionality must use parts with 2 independent circuits.

Q: Are there voltage compatibility concerns when switching from 74LCX16373MEAX to 74LVC variants?

A: The 74LCX16373MEAX operates at 2V ~ 3.6V. Most 74LVC substitutes operate at 1.65V ~ 3.6V, providing extended low-voltage capability. Designs operating at or above 2V are fully compatible. Designs requiring operation below 2V must verify the specific substitute part's minimum voltage specification.

Q: What is the significance of product status (Active vs. Obsolete) in selecting a substitute?

A: Active status indicates current production and long-term availability. Obsolete or discontinued status indicates limited remaining inventory and potential future unavailability. For new designs or long-term production, active status substitutes are recommended. Obsolete substitutes may be acceptable for legacy system maintenance with limited production volumes.

Q: Does propagation delay difference affect circuit performance?

A: The original 74LCX16373MEAX specifies 5.4ns propagation delay. Most 74LVC substitutes specify 2.1ns, representing faster performance. Faster propagation delay does not create compatibility issues; it improves timing margins. Designs with timing-critical paths may benefit from the improved performance.

Q: Can I mix different substitute parts in the same design?

A: Yes, provided all parts meet the functional requirements (dual 8:8 channels, tri-state output) and electrical specifications (voltage range, output current). Mixing parts from different manufacturers or package types is acceptable from an electrical standpoint but may complicate procurement and inventory management.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message