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SN74GTL2003PW Equivalent & Substitute Parts
Part Overview
The SN74GTL2003PW is a voltage level translator IC manufactured by Texas Instruments, designed for bidirectional translation between different voltage domains. This 20-TSSOP surface mount device features 1 circuit with 8 bidirectional channels and open drain output configuration. The part is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. The device operates across voltage ranges of 0.95V to 5.5V on both VCCA and VCCB supplies, with auto-direction sensing capability and unlimited moisture sensitivity level (MSL 1).
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | SN74GTL2003PW |
| Manufacturer | Texas Instruments |
| Product Status | Obsolete |
| Translator Type | Voltage Level |
| Channel Type | Bidirectional |
| Number of Circuits | 1 |
| Channels per Circuit | 8 |
| Voltage - VCCA | 0.95V ~ 5.5V |
| Voltage - VCCB | 0.95V ~ 5.5V |
| Output Type | Open Drain |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Features | Auto-Direction Sensing |
| Package / Case | 20-TSSOP (0.173", 4.40mm Width) |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
| MSL | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution for the SN74GTL2003PW is determined by the following critical parameters: translator type (voltage level), channel type (bidirectional), number of circuits (1), channels per circuit (8), voltage supply ranges, output type configuration, operating temperature range, and package compatibility.
The substitute parts are grouped into two categories based on functional equivalence:
Category 1: Direct Package Equivalents (20-TSSOP) Parts maintaining the original 20-TSSOP package form factor with compatible electrical specifications. The primary substitute is SN74GTL2003PWR from Texas Instruments, which shares identical electrical characteristics and package but features active product status and improved availability.
Category 2: Functional Equivalents (Alternative Packages) Parts providing equivalent translation functionality with different package configurations (24-TSSOP or 24-DHVQFN). These substitutes maintain 8-channel bidirectional translation capability but operate under different voltage supply ranges and output type specifications. Substitutes in this category include 74AVC8T245BQ,118, 74LVC4245APW,118, 74LVC8T245BQ-Q100J, 74LVC8T245PW,118, 74LVCH8T245BQ-Q10J, 74LVX4245MTCX, and 74LVXC3245MTCX.
Key parameters determining substitution validity: voltage supply compatibility, output type (open drain vs. tri-state), channel configuration (8 channels per circuit), bidirectional capability, and surface mount packaging.
Parameter Comparison
| Parameter | SN74GTL2003PW | SN74GTL2003PWR | 74AVC8T245BQ,118 | 74LVC8T245BQ-Q100J | 74LVC8T245PW,118 | 74LVCH8T245BQ-Q10J | 74LVX4245MTCX | 74LVXC3245MTCX |
|---|---|---|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Nexperia USA Inc. | Nexperia USA Inc. | Nexperia USA Inc. | Nexperia USA Inc. | onsemi | onsemi |
| Product Status | Obsolete | Active | Active | Active | Active | Active | Active | Active |
| Translator Type | Voltage Level | Voltage Level | Translation Transceiver | Translation Transceiver | Translation Transceiver | Translation Transceiver | Translator Circuit | Voltage Level |
| Channel Type | Bidirectional | Bidirectional | 8 Bit per Element | 8 Bit per Element | 8 Bit per Element | 8 Bit per Element | Channel | Bidirectional |
| Channels per Circuit | 8 | 8 | 8 | 8 | 8 | 8 | 4 | 8 |
| Voltage - Supply Range | 0.95V ~ 5.5V (both) | 0.95V ~ 5.5V (both) | 0.8V ~ 3.6V | 1.2V ~ 5.5V | 1.2V ~ 5.5V | 1.2V ~ 5.5V | Not specified | VCCA: 2.7V ~ 3.6V; VCCB: 3V ~ 5.5V |
| Output Type | Open Drain | Open Drain | 3-State | 3-State | 3-State | 3-State | 3-State | Tri-State, Non-Inverted |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 85°C | -40°C ~ 85°C |
| Package / Case | 20-TSSOP | 20-TSSOP | 24-DHVQFN (5.5x4.6) | 24-DHVQFN (5.5x4.6) | 24-TSSOP | 24-DHVQFN (5.5x4.6) | 24-TSSOP | 24-TSSOP |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| MSL | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
For Direct Replacement (Same Package, Same Manufacturer): SN74GTL2003PWR is the recommended primary substitute. This part maintains identical electrical specifications, package configuration (20-TSSOP), and manufacturer (Texas Instruments) while offering active product status and significantly higher inventory availability (2400 pcs vs. 60101 pcs obsolete stock). Both parts are ROHS3 compliant with MSL 1 rating.
For Functional Equivalence with Extended Temperature Range: 74LVC8T245BQ-Q100J, 74LVC8T245PW,118, and 74LVCH8T245BQ-Q10J provide 8-channel bidirectional translation with extended operating temperature to 125°C. These parts feature 3-state output configuration and support voltage supplies from 1.2V to 5.5V. The 74LVC8T245PW,118 maintains 24-TSSOP package compatibility with the original form factor. All three parts carry AEC-Q100 automotive qualification where specified.
For Voltage Domain Flexibility: 74LVXC3245MTCX offers asymmetric voltage supply capability (VCCA: 2.7V ~ 3.6V; VCCB: 3V ~ 5.5V) in 24-TSSOP package, suitable for applications requiring translation between different voltage domains. This part maintains 8-channel bidirectional configuration with tri-state non-inverted output.
For Nexperia Platform Migration: 74AVC8T245BQ,118 provides translation transceiver functionality with 3-state output in 24-DHVQFN package, supporting voltage supplies from 0.8V to 3.6V with extended temperature range to 125°C and AEC-Q100 qualification.
All substitute parts maintain ROHS3 compliance and MSL 1 rating consistent with the original SN74GTL2003PW specification.
Frequently Asked Questions (FAQ)
Q: Can SN74GTL2003PWR be used as a direct drop-in replacement for SN74GTL2003PW? A: Yes. SN74GTL2003PWR shares identical electrical specifications, package configuration (20-TSSOP), voltage supply ranges (0.95V ~ 5.5V on both VCCA and VCCB), output type (open drain), and operating temperature range (-40°C ~ 85°C). The primary difference is product status (active vs. obsolete) and packaging format (Cut Tape & Digi-Reel vs. Tube).
Q: What is the key difference between open drain and 3-state output types in these substitutes? A: Open drain output (SN74GTL2003PW, SN74GTL2003PWR) requires external pull-up resistors and can only pull the output low or leave it floating. 3-state output (74LVC8T245BQ-Q100J, 74LVCH8T245BQ-Q10J, etc.) can actively drive the output high or low and includes a tri-state control pin for bus sharing. Application circuit design must accommodate this difference.
Q: Are the 24-TSSOP and 24-DHVQFN package alternatives compatible with the original 20-TSSOP footprint? A: No. 24-TSSOP and 24-DHVQFN packages have different pin counts, pitch, and physical dimensions compared to the original 20-TSSOP. PCB layout and footprint redesign is required for these substitutes. Pin function mapping must be verified against specific part datasheets.
Q: Which substitute parts support the full voltage range of the original SN74GTL2003PW (0.95V ~ 5.5V)? A: SN74GTL2003PWR maintains the identical 0.95V ~ 5.5V supply range on both VCCA and VCCB. Alternative substitutes operate under different voltage specifications: 74AVC8T245BQ,118 supports 0.8V ~ 3.6V; 74LVC series parts support 1.2V ~ 5.5V; 74LVXC3245MTCX supports asymmetric ranges (VCCA: 2.7V ~ 3.6V; VCCB: 3V ~ 5.5V).
Q: Do all substitute parts carry automotive qualification? A: Automotive qualification (AEC-Q100) is specified for 74AVC8T245BQ-Q100J, 74LVC4245ABQ-Q100J, 74LVC8T245BQ-Q100J, and 74LVCH8T245BQ-Q10J. SN74GTL2003PWR, 74LVC4245APW,118, 74LVC8T245PW,118, 74LVX4245MTCX, and 74LVXC3245MTCX do not list AEC-Q100 qualification in the provided specifications.
Q: What inventory considerations exist for these substitutes? A: SN74GTL2003PWR offers 2400 pcs in stock. Among functional equivalents, 74LVC4245APW,118 provides the highest availability at 220341 pcs. 74LVCH8T245BQ-Q10J offers 28250 pcs, and 74LVX4245MTCX provides 47900 pcs. The original SN74GTL2003PW shows 60101 pcs of obsolete stock.
Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL 1 (unlimited) moisture sensitivity level, consistent with the original SN74GTL2003PW specification.
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