MAX3373EEKA Equivalent & Substitute Parts

Part Overview

The MAX3373EEKA is a bidirectional voltage level translator manufactured by Analog Devices Inc./Maxim Integrated, designed to translate logic signals between different voltage domains. This device features 1 circuit with 2 bidirectional channels operating at 8Mbps, housed in a SOT-23-8 surface mount package. The part is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements.

Key Parameters

Parameter	Value
Translator Type	Voltage Level
Channel Type	Bidirectional
Number of Circuits	1
Channels per Circuit	2
Voltage - VCCA	1.2 V ~ 5.5 V
Voltage - VCCB	1.65 V ~ 5.5 V
Data Rate	8Mbps
Output Type	Open Drain, Push-Pull, Tri-State
Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount
Package / Case	SOT-23-8
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the MAX3373EEKA is determined by the following critical parameters:

Functional Requirements:

Bidirectional voltage level translation capability
Single circuit with 2 channels per circuit configuration
Tri-state or open drain output capability

Electrical Compatibility:

Supply voltage ranges that encompass or exceed the original VCCA (1.2 V ~ 5.5 V) and VCCB (1.65 V ~ 5.5 V) specifications
Data rate performance of 8Mbps or higher

Physical Compatibility:

Surface mount technology
Package form factor suitable for SOT-23-8 footprint or compatible alternatives

Operational Conditions:

Operating temperature range of -40°C to 85°C or wider

Substitute parts are grouped into two categories based on voltage range compatibility: High-Voltage Range (1.2V ~ 5.5V) devices that directly match the original specifications, and Low-Voltage Range (0.8V ~ 3.6V) devices that operate in reduced voltage domains but maintain functional equivalence for applications within their voltage envelope.

Parameter Comparison

Part Number	Manufacturer	Translator Type	Channel Type	Circuits	Channels/Circuit	VCCA Range	VCCB Range	Data Rate	Output Type	Temp Range	Package	Status
MAX3373EEKA	Analog Devices/Maxim	Voltage Level	Bidirectional	1	2	1.2V ~ 5.5V	1.65V ~ 5.5V	8Mbps	Tri-State	-40°C ~ 85°C	SOT-23-8	Obsolete
74LVC2T45DC,125	Nexperia USA Inc.	Voltage Level	Bidirectional	1	2	1.2V ~ 5.5V	1.2V ~ 5.5V	420Mbps	Tri-State	-40°C ~ 125°C	8-VSSOP	Active
74LVC2T45GN,115	Nexperia USA Inc.	Voltage Level	Bidirectional	1	2	1.2V ~ 5.5V	1.2V ~ 5.5V	420Mbps	Tri-State	-40°C ~ 125°C	8-XSON	Active
74LVC2T45GF,115	Nexperia USA Inc.	Voltage Level	Bidirectional	1	2	1.2V ~ 5.5V	1.2V ~ 5.5V	420Mbps	Tri-State	-40°C ~ 125°C	8-XSON	Obsolete
74AVC2T45DP,125	Nexperia USA Inc.	Voltage Level	Bidirectional	1	2	0.8V ~ 3.6V	0.8V ~ 3.6V	500Mbps	Tri-State	-40°C ~ 125°C	8-TSSOP	Active
74AVC2T45DP-Q100H	Nexperia USA Inc.	Voltage Level	Bidirectional	1	2	0.8V ~ 3.6V	0.8V ~ 3.6V	500Mbps	Tri-State	-40°C ~ 125°C	8-TSSOP	Active
74AVC2T45GN,115	NXP USA Inc.	Voltage Level	Bidirectional	1	2	0.8V ~ 3.6V	0.8V ~ 3.6V	500Mbps	Tri-State	-40°C ~ 125°C	8-XSON	Active
74AVC2T45GS,115	NXP USA Inc.	Voltage Level	Bidirectional	1	2	0.8V ~ 3.6V	0.8V ~ 3.6V	500Mbps	Tri-State	-40°C ~ 125°C	8-XSON	Active
74AVC2T245GUX	Nexperia USA Inc.	Translation Transceiver	Bidirectional	1	2	0.8V ~ 3.6V	0.8V ~ 3.6V	N/A	3-State	-40°C ~ 125°C	10-XQFN	Active
74AVCH2T45GN,115	NXP Semiconductors	Voltage Level	Bidirectional	1	2	0.8V ~ 3.6V	0.8V ~ 3.6V	500Mbps	Tri-State	-40°C ~ 125°C	8-XSON	Active
74AVCH2T45GS,115	NXP USA Inc.	Voltage Level	Bidirectional	1	2	0.8V ~ 3.6V	0.8V ~ 3.6V	500Mbps	Tri-State	-40°C ~ 125°C	8-XSON	Active

Engineering Selection Recommendations

Primary Substitutes (High-Voltage Range - Direct Voltage Compatibility):

The 74LVC2T45 series devices (74LVC2T45DC,125 and 74LVC2T45GN,115) provide the closest electrical match to the MAX3373EEKA. Both maintain the 1.2V ~ 5.5V supply voltage range, support bidirectional 2-channel translation in a single circuit, and feature tri-state outputs. These parts are in active production status, ensuring long-term availability. The 74LVC2T45DC,125 is packaged in 8-VSSOP, while the 74LVC2T45GN,115 uses 8-XSON packaging. Both exceed the original 8Mbps data rate specification at 420Mbps and support extended operating temperatures to 125°C. RoHS3 compliance and unlimited moisture sensitivity level (MSL 1) are standard across these devices.

Secondary Substitutes (Low-Voltage Range - Reduced Voltage Domain):

The 74AVC2T45 series (74AVC2T45DP,125, 74AVC2T45DP-Q100H, 74AVC2T45GN,115, and 74AVC2T45GS,115) operate within a reduced voltage envelope of 0.8V ~ 3.6V. These devices are suitable for applications that do not require the full 5.5V upper limit. All 74AVC2T45 variants are in active production, feature 500Mbps data rate capability, and support -40°C to 125°C operating temperature. The 74AVC2T45DP-Q100H variant includes AEC-Q100 automotive qualification. Package options include 8-TSSOP and 8-XSON variants.

Automotive-Grade Option:

The 74AVC2T45DP-Q100H is qualified to AEC-Q100 automotive standards and is appropriate for applications requiring automotive-grade components within the 0.8V ~ 3.6V voltage domain.

Product Status Consideration:

The 74LVC2T45GF,115 is marked as obsolete and should not be selected for new designs despite meeting electrical specifications. All other recommended substitutes maintain active production status.

Frequently Asked Questions (FAQ)

Q: Can the 74AVC2T45 series replace the MAX3373EEKA in all applications?

A: The 74AVC2T45 series can replace the MAX3373EEKA functionally for bidirectional 2-channel voltage translation. However, the 74AVC2T45 operates at 0.8V ~ 3.6V, which is a reduced voltage range compared to the MAX3373EEKA's 1.2V ~ 5.5V specification. Substitution is valid only if your application operates within the 0.8V ~ 3.6V envelope.

Q: What is the difference between 74LVC2T45 and 74AVC2T45 series?

A: The primary difference is the supply voltage range. The 74LVC2T45 series supports 1.2V ~ 5.5V (matching the original MAX3373EEKA voltage range), while the 74AVC2T45 series operates at 0.8V ~ 3.6V. Both series provide equivalent bidirectional 2-channel translation functionality and tri-state outputs. The 74AVC2T45 offers higher data rate performance at 500Mbps versus 420Mbps for 74LVC2T45.

Q: Are there package compatibility considerations?

A: Yes. The MAX3373EEKA uses SOT-23-8 packaging. Substitute parts use different packages: 74LVC2T45 variants use 8-VSSOP or 8-XSON, and 74AVC2T45 variants use 8-TSSOP or 8-XSON. PCB layout and footprint modifications are required when substituting. The 8-XSON package is the smallest form factor among the substitutes.

Q: Which substitute should I select for new designs?

A: For new designs requiring the full 1.2V ~ 5.5V voltage range, select 74LVC2T45DC,125 or 74LVC2T45GN,115. Both are in active production with RoHS3 compliance. For applications operating at 0.8V ~ 3.6V, the 74AVC2T45 series offers superior performance at 500Mbps data rate. For automotive applications, specify 74AVC2T45DP-Q100H.

Q: What is the data rate advantage of substitute parts?

A: The MAX3373EEKA operates at 8Mbps. The 74LVC2T45 series provides 420Mbps capability, and the 74AVC2T45 series provides 500Mbps capability. These higher data rates ensure compatibility with faster signal transitions and provide design margin for future performance requirements.

Q: Are all recommended substitutes RoHS compliant?

A: Yes. All active production substitutes listed (74LVC2T45 and 74AVC2T45 series) are RoHS3 compliant with unlimited moisture sensitivity level (MSL 1), suitable for standard manufacturing and storage conditions.

Q: Can I use 74AVC2T245GUX as a substitute?

A: The 74AVC2T245GUX is a translation transceiver with 2-bit per element configuration in a 10-XQFN package. While it provides bidirectional translation capability, it differs in package form factor and element configuration. This part is suitable only if your PCB layout can accommodate the 10-XQFN package and the additional pin count does not create routing constraints.

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