SN74LVC4245APWRE4 Equivalent & Substitute Parts

Part Overview

The SN74LVC4245APWRE4 is a bidirectional voltage level translator IC manufactured by Texas Instruments, housed in a 24-TSSOP package. This component translates logic signals between different voltage domains, supporting 1 circuit with 8 channels per circuit and tri-state output configuration. The part is currently discontinued at DiGi Electronics, necessitating identification of active equivalent and substitute components that maintain functional and electrical compatibility for new designs and production continuity.

Key Parameters

Parameter	Value
Manufacturer	Texas Instruments
Base Product Number	74LVC4245
Package / Case	24-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
Translator Type	Voltage Level
Channel Type	Bidirectional
Number of Circuits	1
Channels per Circuit	8
Output Type	Tri-State
Operating Temperature	-40°C ~ 85°C (TA)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the SN74LVC4245APWRE4 is determined by the following criteria:

Primary Substitution Criteria:

Identical base product number (74LVC4245 or 74LVCC4245 series)
Matching package type (24-TSSOP)
Surface mount mounting type
Bidirectional channel configuration with 8 channels per circuit
Tri-state output capability
Compatible voltage translation specifications
Identical or equivalent operating temperature range
ROHS3 compliance and MSL 1 rating

Substitution Categories:

Texas Instruments 74LVC4245 Series (Direct Equivalents): Parts with identical base product number, voltage specifications (VCCA: 4.5V–5.5V, VCCB: 2.7V–3.6V), and active product status.
Texas Instruments 74LVCC4245 Series (Extended Voltage Range): Parts with enhanced VCCB voltage range (2.7V–5.5V) and non-inverted tri-state output, providing broader application compatibility.
Nexperia 74LVC4245 Series (Manufacturer Alternative): Cross-manufacturer equivalent with extended voltage specifications (VCCA: 1.5V–5.5V, VCCB: 1.5V–3.6V) and higher operating temperature range (-40°C to 125°C).

Parameter Comparison

Part Number	Manufacturer	Series	Product Status	VCCA Range	VCCB Range	Output Type	Operating Temp	Packaging	Inventory
SN74LVC4245APWRE4	Texas Instruments	74LVC	Discontinued at DiGi Electronics	4.5V ~ 5.5V	2.7V ~ 3.6V	Tri-State	-40°C ~ 85°C	Cut Tape (CT) & Digi-Reel®	844 Pcs
SN74LVC4245AIPWREP	Texas Instruments	74LVC	Active	4.5V ~ 5.5V	2.7V ~ 3.6V	Tri-State	-40°C ~ 85°C	Cut Tape (CT) & Digi-Reel®	2040 Pcs
SN74LVC4245APWR	Texas Instruments	74LVC	Active	4.5V ~ 5.5V	2.7V ~ 3.6V	Tri-State	-40°C ~ 85°C	Cut Tape (CT) & Digi-Reel®	177960 Pcs
SN74LVC4245APWRG4	Texas Instruments	74LVC	Discontinued at DiGi Electronics	4.5V ~ 5.5V	2.7V ~ 3.6V	Tri-State	-40°C ~ 85°C	Tape & Reel (TR)	2100 Pcs
SN74LVC4245APWT	Texas Instruments	74LVC	Active	4.5V ~ 5.5V	2.7V ~ 3.6V	Tri-State	-40°C ~ 85°C	Cut Tape (CT) & Digi-Reel®	3300 Pcs
SN74LVCC4245APWR	Texas Instruments	74LVCC	Active	4.5V ~ 5.5V	2.7V ~ 5.5V	Tri-State, Non-Inverted	-40°C ~ 85°C	Cut Tape (CT) & Digi-Reel®	19700 Pcs
SN74LVCC4245APWT	Texas Instruments	74LVCC	Active	4.5V ~ 5.5V	2.7V ~ 5.5V	Tri-State, Non-Inverted	-40°C ~ 85°C	Cut Tape (CT) & Digi-Reel®	2980 Pcs
74LVC4245APW,118	Nexperia USA Inc.	74LVC	Active	1.5V ~ 5.5V	1.5V ~ 3.6V	Tri-State	-40°C ~ 125°C	Cut Tape (CT) & Digi-Reel®	220341 Pcs

Engineering Selection Recommendations

Primary Recommendation: SN74LVC4245APWR

The SN74LVC4245APWR is the optimal substitute for the discontinued SN74LVC4245APWRE4. This part maintains identical electrical specifications (VCCA: 4.5V–5.5V, VCCB: 2.7V–3.6V), operating temperature range (-40°C to 85°C), and package configuration (24-TSSOP). The part holds active product status with substantial inventory availability (177,960 units), ensuring supply chain continuity. Both components are ROHS3 compliant with MSL 1 rating.

Secondary Recommendation: SN74LVC4245APWT

The SN74LVC4245APWT provides identical electrical and thermal specifications to the primary recommendation with active product status. This variant is suitable for applications where the specific packaging designation (APWT vs. APWR) does not impose design constraints. Inventory availability is adequate at 3,300 units.

Extended Voltage Range Alternative: SN74LVCC4245APWR

The SN74LVCC4245APWR extends the VCCB voltage range to 2.7V–5.5V, accommodating applications requiring higher secondary voltage domain operation. This part maintains the same operating temperature range and package type. The output type specification includes non-inverted tri-state configuration. This variant is suitable only when the extended voltage range provides functional advantage and circuit design permits the output type variation.

Cross-Manufacturer Alternative: 74LVC4245APW,118 (Nexperia)

The Nexperia 74LVC4245APW,118 offers extended voltage specifications (VCCA: 1.5V–5.5V, VCCB: 1.5V–3.6V) and higher operating temperature range (-40°C to 125°C). This part is recommended only when design requirements specifically demand the extended voltage or temperature specifications. Nexperia manufacturing ensures ROHS3 compliance and MSL 1 rating equivalent to Texas Instruments variants.

Frequently Asked Questions (FAQ)

Q: Can I use SN74LVC4245APWR as a direct replacement for SN74LVC4245APWRE4?

A: Yes. Both parts share identical base product number (74LVC4245), package type (24-TSSOP), voltage specifications (VCCA: 4.5V–5.5V, VCCB: 2.7V–3.6V), operating temperature range (-40°C to 85°C), and tri-state output configuration. The primary difference is product status: SN74LVC4245APWR is active while SN74LVC4245APWRE4 is discontinued.

Q: What is the difference between 74LVC4245 and 74LVCC4245 series?

A: The 74LVCC4245 series extends the VCCB voltage range to 2.7V–5.5V compared to the 74LVC4245 range of 2.7V–3.6V. The 74LVCC4245 also specifies non-inverted tri-state output. Both series maintain identical VCCA range (4.5V–5.5V), operating temperature (-40°C to 85°C), and 24-TSSOP package. Use 74LVCC4245 only when the extended VCCB range is required by circuit design.

Q: Are packaging variants (Cut Tape vs. Tape & Reel) interchangeable?

A: Packaging variants (CT & Digi-Reel® vs. Tape & Reel) represent different supply formats for the same die and electrical specifications. The parts are electrically and functionally identical. Selection depends on procurement and assembly process requirements. SN74LVC4245APWRG4 (Tape & Reel) is discontinued; use active variants with Cut Tape packaging.

Q: Can I substitute a Nexperia part for a Texas Instruments part?

A: The Nexperia 74LVC4245APW,118 is functionally compatible with identical package and base product number. However, it offers extended voltage specifications (VCCA: 1.5V–5.5V, VCCB: 1.5V–3.6V) and higher operating temperature (-40°C to 125°C). Use Nexperia parts only when these extended specifications provide functional advantage. Verify manufacturing and supply chain requirements before cross-manufacturer substitution.

Q: What does "Discontinued at DiGi Electronics" mean for the original part?

A: "Discontinued at DiGi Electronics" indicates the part is no longer actively stocked or distributed through DiGi Electronics. The part may remain available through other channels or from existing inventory. For new designs and production continuity, substitute with active product status parts such as SN74LVC4245APWR.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the original SN74LVC4245APWRE4 specifications.

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