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74LVC2245ADB,112 Equivalent & Substitute Parts
Part Overview
The 74LVC2245ADB,112 is a non-inverting transceiver logic IC manufactured by Nexperia USA Inc., designed for 8-bit bidirectional data transfer with 3-state output capability. Operating across a supply voltage range of 1.2V to 3.6V, this component is housed in a 20-SSOP package. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | 74LVC2245ADB,112 |
| Manufacturer | Nexperia USA Inc. |
| Logic Type | Transceiver, Non-Inverting |
| Number of Elements | 1 |
| Number of Bits per Element | 8 |
| Output Type | 3-State |
| Current - Output High, Low | 12mA, 12mA |
| Voltage - Supply | 1.2V ~ 3.6V |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Package / Case | 20-SSOP (0.209", 5.30mm Width) |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution of the 74LVC2245ADB,112 is determined by the following critical parameters:
Functional Equivalence Criteria:
- Logic type: Transceiver, Non-Inverting
- Number of elements: 1
- Number of bits per element: 8
- Output type: 3-State
- Operating temperature range: -40°C ~ 125°C (TA)
- RoHS3 compliance
Package Compatibility Criteria:
- Primary substitute: 20-SSOP package (identical footprint)
- Secondary substitutes: 20-TSSOP and 20-TVSOP packages (different footprints, require PCB layout modification)
Electrical Performance Criteria:
- Supply voltage range: Minimum 1.65V (substitute parts) vs. 1.2V (original)
- Output current: 24mA (substitute parts) vs. 12mA (original)
Substitute parts are grouped into two categories: direct package replacements (20-SSOP) and alternative package options (20-TSSOP, 20-TVSOP). All substitutes maintain the core 74LVC logic family classification and are manufactured by Texas Instruments with active product status.
Parameter Comparison
| Part Number | Manufacturer | Logic Type | Bits per Element | Output Type | Current Output (mA) | Supply Voltage (V) | Temp Range (°C) | Package | Product Status |
|---|---|---|---|---|---|---|---|---|---|
| 74LVC2245ADB,112 | Nexperia USA Inc. | Transceiver, Non-Inverting | 8 | 3-State | 12, 12 | 1.2 ~ 3.6 | -40 ~ 125 | 20-SSOP | Obsolete |
| SN74LVC245ADB | Texas Instruments | Transceiver, Non-Inverting | 8 | 3-State | 24, 24 | 1.65 ~ 3.6 | -40 ~ 125 | 20-SSOP | Active |
| SN74LVC245ADBR | Texas Instruments | Transceiver, Non-Inverting | 8 | 3-State | 24, 24 | 1.65 ~ 3.6 | -40 ~ 125 | 20-SSOP | Active |
| SN74LVC245ADGVR | Texas Instruments | Transceiver, Non-Inverting | 8 | 3-State | 24, 24 | 1.65 ~ 3.6 | -40 ~ 125 | 20-TVSOP | Active |
| SN74LVC245AIPWREP | Texas Instruments | Transceiver, Non-Inverting | 8 | 3-State | 24, 24 | 1.65 ~ 3.6 | -40 ~ 85 | 20-TSSOP | Active |
| SN74LVC245APW | Texas Instruments | Transceiver, Non-Inverting | 8 | 3-State | 24, 24 | 1.65 ~ 3.6 | -40 ~ 125 | 20-TSSOP | Active |
| SN74LVC245APWT | Texas Instruments | Transceiver, Non-Inverting | 8 | 3-State | 24, 24 | 1.65 ~ 3.6 | -40 ~ 125 | 20-TSSOP | Active |
| SN74LVCH245ADBR | Texas Instruments | Transceiver, Non-Inverting | 8 | 3-State | 24, 24 | 1.65 ~ 3.6 | -40 ~ 125 | 20-SSOP | Active |
| SN74LVCH245ADGVR | Texas Instruments | Transceiver, Non-Inverting | 8 | 3-State | 24, 24 | 1.65 ~ 3.6 | -40 ~ 125 | 20-TVSOP | Active |
| SN74LVCH245APW | Texas Instruments | Transceiver, Non-Inverting | 8 | 3-State | 24, 24 | 1.65 ~ 3.6 | -40 ~ 125 | 20-TSSOP | Active |
| SN74LVCH245APWT | Texas Instruments | Transceiver, Non-Inverting | 8 | 3-State | 24, 24 | 1.65 ~ 3.6 | -40 ~ 125 | 20-TSSOP | Active |
Engineering Selection Recommendations
Direct Package Replacement (20-SSOP): SN74LVC245ADB and SN74LVC245ADBR are the primary substitutes, maintaining identical 20-SSOP package geometry. Both parts are manufactured by Texas Instruments with active product status and ROHS3 compliance. The minimum supply voltage increases from 1.2V to 1.65V, and output current capability doubles from 12mA to 24mA. These characteristics are compatible with most applications designed for the original part.
SN74LVCH245ADBR represents an alternative within the same package family, utilizing the 74LVCH logic series variant. This part maintains identical electrical and thermal specifications while offering active product status and full compliance certifications.
Alternative Package Options (20-TSSOP, 20-TVSOP): For designs where package footprint modification is acceptable, SN74LVC245APWT, SN74LVC245APW, SN74LVCH245APW, and SN74LVCH245APWT offer 20-TSSOP packaging with reduced physical dimensions. SN74LVC245ADGVR and SN74LVCH245ADGVR provide 20-TVSOP packaging.
SN74LVC245AIPWREP operates within a reduced temperature range (-40°C to 85°C) compared to the original specification (-40°C to 125°C) and should be selected only when the application temperature profile does not exceed 85°C.
All substitute parts carry ROHS3 compliance, MSL rating of 1 (Unlimited), and REACH unaffected status, matching the regulatory profile of the original component.
Frequently Asked Questions (FAQ)
Q: Can SN74LVC245ADBR be used as a direct replacement for 74LVC2245ADB,112? A: Yes. Both parts share identical 20-SSOP package geometry, 8-bit non-inverting transceiver functionality, 3-state output configuration, and -40°C to 125°C operating temperature range. The supply voltage minimum increases from 1.2V to 1.65V, and output current capability increases from 12mA to 24mA. These changes are compatible with standard logic circuit applications.
Q: What is the difference between 74LVC and 74LVCH logic series substitutes? A: Both series maintain identical functional specifications for the 74LVC2245ADB,112 replacement. The 74LVCH designation indicates a variant within the Texas Instruments product line. Selection between 74LVC and 74LVCH variants should be based on availability and packaging preference, as electrical performance and compliance certifications are equivalent.
Q: Can I use SN74LVC245APWT instead of SN74LVC245ADBR? A: Functionally, yes. However, SN74LVC245APWT uses a 20-TSSOP package (0.173" width) instead of the 20-SSOP package (0.209" width) of the original part. This requires PCB layout modification and cannot be used as a direct drop-in replacement. The electrical specifications and temperature range (-40°C to 125°C) remain compatible.
Q: Does SN74LVC245AIPWREP have any limitations compared to other substitutes? A: SN74LVC245AIPWREP operates within a reduced maximum temperature range of -40°C to 85°C, compared to the standard -40°C to 125°C specification of other substitutes. This part is suitable only for applications where the operating temperature does not exceed 85°C.
Q: Are all substitute parts RoHS3 compliant? A: Yes. All listed substitute parts carry ROHS3 compliance certification, matching the regulatory status of the original 74LVC2245ADB,112 component.
Q: What packaging options are available for substitutes? A: Substitutes are available in three package types: 20-SSOP (identical to original), 20-TSSOP (reduced width, 0.173"), and 20-TVSOP (reduced width, 0.173"). Package selection depends on PCB layout constraints and design flexibility.
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