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74LVC2245APW,112 Equivalent & Substitute Parts
Part Overview
The 74LVC2245APW,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-TSSOP surface mount package. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | 74LVC2245APW,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-TSSOP (0.173", 4.40mm Width) |
| Product Status | Obsolete |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the 74LVC2245APW,112 is determined by the following critical parameters:
Mandatory Compatibility Criteria:
- Logic type: Non-inverting transceiver
- Bit configuration: 1 element, 8 bits per element
- Output configuration: 3-state output
- Package type: 20-TSSOP surface mount
- Pinout compatibility: Identical pin assignment
Electrical Operating Range:
- Supply voltage must encompass or exceed the 1.2V to 3.6V range
- Output current capability must meet or exceed 12mA per output
- Operating temperature range must support -40°C to 125°C minimum
Compliance Requirements:
- RoHS3 compliance mandatory
- MSL rating of 1 (Unlimited) required
Substitute parts are grouped into two categories: direct pin-compatible replacements from Texas Instruments (74LVC and 74LVCH series) and functionally equivalent alternatives with extended electrical specifications (onsemi 74LCX series).
Parameter Comparison
| Part Number | Manufacturer | Series | Supply Voltage | Output Current (High/Low) | Operating Temp | Product Status | Packaging |
|---|---|---|---|---|---|---|---|
| 74LVC2245APW,112 | Nexperia USA Inc. | 74LVC | 1.2V ~ 3.6V | 12mA, 12mA | -40°C ~ 125°C | Obsolete | Tube |
| SN74LVC245APW | Texas Instruments | 74LVC | 1.65V ~ 3.6V | 24mA, 24mA | -40°C ~ 125°C | Active | Tube |
| SN74LVC245APWR | Texas Instruments | 74LVC | 1.65V ~ 3.6V | 24mA, 24mA | -40°C ~ 125°C | Active | Cut Tape (CT) & Digi-Reel® |
| SN74LVC245APWT | Texas Instruments | 74LVC | 1.65V ~ 3.6V | 24mA, 24mA | -40°C ~ 125°C | Active | Tape & Reel (TR) |
| SN74LVC245AIPWREP | Texas Instruments | 74LVC | 1.65V ~ 3.6V | 24mA, 24mA | -40°C ~ 85°C | Active | Tape & Reel (TR) |
| SN74LVCH245APW | Texas Instruments | 74LVCH | 1.65V ~ 3.6V | 24mA, 24mA | -40°C ~ 125°C | Active | Tube |
| SN74LVCH245APWR | Texas Instruments | 74LVCH | 1.65V ~ 3.6V | 24mA, 24mA | -40°C ~ 125°C | Active | Cut Tape (CT) & Digi-Reel® |
| SN74LVCH245APWT | Texas Instruments | 74LVCH | 1.65V ~ 3.6V | 24mA, 24mA | -40°C ~ 125°C | Active | Tape & Reel (TR) |
| SN74LVCR2245APW | Texas Instruments | 74LVCR | 1.65V ~ 3.6V | 12mA, 12mA | -40°C ~ 125°C | Active | Tube |
| SN74LVCR2245APWR | Texas Instruments | 74LVCR | 1.65V ~ 3.6V | 12mA, 12mA | -40°C ~ 125°C | Active | Cut Tape (CT) & Digi-Reel® |
| NLV74LCX245DTR2G | onsemi | 74LCX | 2V ~ 5.5V | 24mA, 24mA | -55°C ~ 125°C | Obsolete | Tape & Reel (TR) |
Engineering Selection Recommendations
Primary Substitutes (Active Status, Direct Compatibility):
The SN74LVC245 series from Texas Instruments represents the primary substitution path for the obsolete 74LVC2245APW,112. All variants (SN74LVC245APW, SN74LVC245APWR, SN74LVC245APWT, SN74LVC245AIPWREP) maintain identical pinout, logic function, and package geometry. These parts are in active production status and carry full RoHS3 compliance. The increased output current specification (24mA versus 12mA) provides enhanced drive capability without compromising backward compatibility. Selection among packaging options (Tube, Cut Tape, or Tape & Reel) depends on procurement and assembly requirements.
Secondary Substitutes (Enhanced Specifications):
The SN74LVCH245 series offers identical electrical and thermal performance to the SN74LVC245 variants with enhanced input/output characteristics. The 74LVCH designation indicates improved noise immunity and propagation delay characteristics. All variants maintain active product status and full compliance certifications.
Current-Matched Alternative (12mA Output):
The SN74LVCR2245 series provides output current specifications matching the original 74LVC2245APW,112 (12mA per output). This series is suitable for applications where output drive current is a critical design constraint. All variants are in active production with full compliance certifications.
Extended Temperature/Voltage Alternative:
The onsemi NLV74LCX245DTR2G operates across an extended supply voltage range (2V to 5.5V) and temperature range (-55°C to 125°C). This part is classified as obsolete but remains available in inventory. The 74LCX series is qualified to AEC-Q100 automotive standards. This option is applicable only when extended electrical specifications are required and automotive qualification is necessary.
Frequently Asked Questions (FAQ)
Q: Can SN74LVC245APWR directly replace the 74LVC2245APW,112?
A: Yes. The SN74LVC245APWR is pin-compatible and functionally equivalent. Both are non-inverting transceivers with 1 element, 8 bits per element, 3-state output, and identical 20-TSSOP packaging. The increased output current (24mA versus 12mA) is a superset specification that maintains backward compatibility.
Q: What is the difference between SN74LVC245 and SN74LVCH245?
A: Both series are functionally and electrically identical in the parameters provided. The 74LVCH designation indicates enhanced input/output characteristics for improved noise immunity and timing performance. Pin configuration and package remain identical.
Q: Why does SN74LVC245AIPWREP have a lower operating temperature maximum (-40°C to 85°C)?
A: The AIPWREP variant is a specific product configuration with a reduced upper operating temperature limit. Applications requiring the full -40°C to 125°C range should select SN74LVC245APW, SN74LVC245APWR, or SN74LVC245APWT instead.
Q: Is the onsemi NLV74LCX245DTR2G suitable as a substitute?
A: The NLV74LCX245DTR2G is functionally compatible but operates across a different supply voltage range (2V to 5.5V versus 1.65V to 3.6V). This part is classified as obsolete. Selection requires confirmation that the extended voltage specifications align with system requirements.
Q: What packaging options are available for the SN74LVC245 series?
A: Three packaging formats are available: Tube (SN74LVC245APW), Cut Tape with Digi-Reel (SN74LVC245APWR), and Tape & Reel (SN74LVC245APWT). All maintain identical electrical specifications and 20-TSSOP form factor. Selection depends on procurement volume and assembly process requirements.
Q: Are all substitute parts RoHS3 compliant?
A: Yes. All listed substitute parts carry RoHS3 compliance certification. Moisture sensitivity level is uniformly rated as MSL 1 (Unlimited) across all alternatives.
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