74LCX16245MEAX Equivalent & Substitute Parts

Part Overview

The 74LCX16245MEAX is a non-inverting transceiver IC manufactured by onsemi, featuring 2 elements with 8 bits per element and 3-state output capability in a 48-SSOP package. This component operates across a 2V to 3.6V supply voltage range and is rated for -40°C to 85°C operating temperature. The part is currently classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
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	2V ~ 3.6V
Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount
Package / Case	48-BSSOP (0.295", 7.50mm Width)
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the 74LCX16245MEAX is determined by the following critical parameters:

Functional Equivalence: Logic type (non-inverting transceiver), element count (2), bits per element (8), and output type (3-state) must remain identical.

Electrical Compatibility: Supply voltage range must encompass or exceed the original 2V to 3.6V specification. Output current capability must match or exceed 24mA for both high and low states.

Thermal Compatibility: Operating temperature range must support the required -40°C to 85°C minimum specification.

Package Compatibility: Physical package dimensions and pin configuration must be compatible with the original 48-BSSOP footprint, or alternative packages must be mechanically and electrically interchangeable within the design constraints.

Compliance Status: Active product status and RoHS3 compliance are preferred for long-term availability and regulatory adherence.

Parameter Comparison

Part Number	Manufacturer	Series	Supply Voltage	Operating Temp	Package / Case	Product Status	RoHS Status
74LCX16245MEAX	onsemi	74LCX	2V ~ 3.6V	-40°C ~ 85°C	48-BSSOP (0.295", 7.50mm)	Obsolete	Not Specified
SN74LVC16245ADLR	Texas Instruments	74LVC	1.65V ~ 3.6V	-40°C ~ 125°C	48-BSSOP (0.295", 7.50mm)	Active	ROHS3 Compliant
74LVC16245APAG	Renesas Electronics	74LVC	2.7V ~ 3.6V	-40°C ~ 85°C	48-TFSOP (0.240", 6.10mm)	Active	ROHS3 Compliant
74LVC16245APAG8	Renesas Electronics	74LVC	2.7V ~ 3.6V	-40°C ~ 85°C	48-TFSOP (0.240", 6.10mm)	Active	ROHS3 Compliant
74LVC16245APVG	Renesas Electronics	74LVC	2.7V ~ 3.6V	-40°C ~ 85°C	48-BSSOP (0.295", 7.50mm)	Last Time Buy	ROHS3 Compliant
74LVC16245APVG8	Renesas Electronics	74LVC	2.7V ~ 3.6V	-40°C ~ 85°C	48-BSSOP (0.295", 7.50mm)	Active	ROHS3 Compliant
74LVCH16245APAG	Renesas Electronics	74LVCH	2.7V ~ 3.6V	-40°C ~ 85°C	48-TFSOP (0.240", 6.10mm)	Active	ROHS3 Compliant
74LVCH16245APAG8	Renesas Electronics	74LVCH	2.7V ~ 3.6V	-40°C ~ 85°C	48-TFSOP (0.240", 6.10mm)	Active	ROHS3 Compliant
SN74LVC16245ADGG	Texas Instruments	74LVC	1.65V ~ 3.6V	-40°C ~ 125°C	48-TFSOP (0.240", 6.10mm)	Active	ROHS3 Compliant
SN74LVC16245ADGGR	Texas Instruments	74LVC	1.65V ~ 3.6V	-40°C ~ 125°C	48-TFSOP (0.240", 6.10mm)	Active	ROHS3 Compliant
SN74LVC16245ADGVR	Texas Instruments	74LVC	1.65V ~ 3.6V	-40°C ~ 125°C	48-TFSOP (0.173", 4.40mm)	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Package Match (48-BSSOP): SN74LVC16245ADLR and 74LVC16245APVG8 maintain the original 48-BSSOP package footprint. SN74LVC16245ADLR offers extended operating temperature range (-40°C to 125°C) and lower minimum supply voltage (1.65V), providing enhanced performance margins. 74LVC16245APVG8 maintains the original thermal specification while offering active product status and full RoHS3 compliance.

Alternative Package Options (48-TFSOP): SN74LVC16245ADGGR, SN74LVC16245ADGG, and SN74LVC16245ADGVR from Texas Instruments provide active status with extended temperature range. These require PCB layout modification due to different package dimensions. SN74LVC16245ADGVR uses a narrower 48-TFSOP package (0.173" width) compared to standard 48-TFSOP variants (0.240" width).

Renesas 48-TFSOP Options: 74LVC16245APAG, 74LVC16245APAG8, 74LVCH16245APAG, and 74LVCH16245APAG8 maintain thermal specifications matching the original part. These require PCB redesign for the 48-TFSOP footprint but offer active product status and RoHS3 compliance.

Product Status Consideration: All recommended substitutes carry active or last-time-buy status except the original obsolete part. Texas Instruments parts provide extended temperature operation (-40°C to 125°C) compared to the original -40°C to 85°C specification.

Frequently Asked Questions (FAQ)

Q: Can SN74LVC16245ADLR directly replace 74LCX16245MEAX without PCB modification?

A: Yes. Both parts use the 48-BSSOP package with identical 0.295" (7.50mm) width and pin configuration. The SN74LVC16245ADLR supply voltage range (1.65V to 3.6V) encompasses the original 2V to 3.6V specification, and output current ratings (24mA) are identical. Extended operating temperature range (-40°C to 125°C) provides additional margin.

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

A: Package width differs: 48-BSSOP measures 0.295" (7.50mm) while standard 48-TFSOP measures 0.240" (6.10mm). Pin pitch and footprint are different, requiring PCB layout changes. SN74LVC16245ADGVR uses a narrower 48-TFSOP variant at 0.173" (4.40mm) width.

Q: Are all substitute parts RoHS3 compliant?

A: All listed substitute parts carry RoHS3 compliance status. The original 74LCX16245MEAX does not specify RoHS status.

Q: Which substitute offers the widest supply voltage range?

A: SN74LVC16245ADLR and SN74LVC16245ADGGR both support 1.65V to 3.6V, extending below the original 2V minimum specification.

Q: Can I use 74LVCH16245APAG as a substitute?

A: Functionally, yes. The 74LVCH16245APAG maintains identical logic type, element count, bit width, and output type. However, it uses a 48-TFSOP package requiring PCB modification. Supply voltage (2.7V to 3.6V) is narrower than the original specification.

Q: What is the inventory status of recommended substitutes?

A: SN74LVC16245ADLR has 2092 pcs in stock. SN74LVC16245ADGGR has 65188 pcs available. 74LVC16245APAG8 has 2900 pcs. 74LVC16245APVG8 has 1034 pcs. Availability varies by distributor and time.

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