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SN74LVC2G53DCT3 Equivalent & Substitute Parts
Part Overview
The SN74LVC2G53DCT3 is a single-circuit SPDT (Single Pole Double Throw) IC switch manufactured by Texas Instruments, designed for low-voltage analog signal switching applications. This device integrates one 2:1 multiplexer/demultiplexer circuit with 13Ohm on-state resistance in an 8-LSSOP surface mount package. The part is currently in Last Time Buy status, making identification of equivalent and substitute components essential for design continuity and procurement planning.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | SN74LVC2G53DCT3 |
| Manufacturer | Texas Instruments |
| Series | 74LVC |
| Switch Circuit Type | SPDT |
| Number of Circuits | 1 |
| Multiplexer/Demultiplexer Configuration | 2:1 |
| On-State Resistance (Max) | 13Ohm |
| Channel-to-Channel Matching (ΔRon) | 2Ohm (Max) |
| Supply Voltage Range (V+) | 1.65V ~ 5.5V |
| Switch Time (Ton/Toff Max) | 4.5ns / 8ns |
| -3dB Bandwidth | 300MHz |
| Channel Capacitance (CS(off), CD(off)) | 10pF |
| Leakage Current (IS(off) Max) | 1µA |
| Crosstalk | -58dB @ 1MHz |
| Operating Temperature Range | -40°C ~ 85°C |
| Package / Case | 8-LSSOP, 8-MSOP (0.110", 2.80mm Width) |
| Mounting Type | Surface Mount |
| Product Status | Last Time Buy |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution of the SN74LVC2G53DCT3 is determined by the following critical parameters:
Functional Equivalence Requirements:
- Switch circuit type: SPDT
- Multiplexer/demultiplexer configuration: 2:1
- Number of circuits: 1
- Supply voltage range: 1.65V ~ 5.5V (minimum overlap required)
- Operating temperature range: -40°C minimum (extended range preferred)
Electrical Performance Criteria:
- On-state resistance: 13Ohm maximum (lower values acceptable)
- Switch time: 4.5ns/8ns maximum (faster switching acceptable)
- Bandwidth: 300MHz minimum
- Leakage current: 1µA maximum (lower values acceptable)
- Crosstalk: -58dB @ 1MHz minimum
Physical & Compliance Requirements:
- Package compatibility: 8-LSSOP or 8-MSOP footprint
- Surface mount mounting type
- RoHS3 compliance
- MSL rating: 1 (Unlimited)
Substitutes are classified into two categories: MFR Recommended (same manufacturer, different packaging) and Similar (alternative manufacturer, potentially different package variant).
Parameter Comparison
| Parameter | SN74LVC2G53DCT3 (Main) | SN74LVC2G53DCTR (MFR Recommended) | 74LVC1G53DP,125 (Similar) | 74LVC2G53DP,125 (Similar) |
|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Nexperia USA Inc. | Nexperia USA Inc. |
| Switch Circuit | SPDT | SPDT | SPDT | SPDT |
| Multiplexer/Demultiplexer | 2:1 | 2:1 | 2:1 | 2:1 |
| Number of Circuits | 1 | 1 | 1 | 1 |
| On-State Resistance (Max) | 13Ohm | 13Ohm | 10Ohm | 10Ohm |
| Supply Voltage (V+) | 1.65V ~ 5.5V | 1.65V ~ 5.5V | 1.65V ~ 5.5V | 1.65V ~ 5.5V |
| Switch Time Ton (Max) | 4.5ns | 4.5ns | 3.8ns | 3.8ns |
| Switch Time Toff (Max) | 8ns | 8ns | 3.8ns | 3.8ns |
| -3dB Bandwidth | 300MHz | 300MHz | 300MHz | 300MHz |
| Channel Capacitance (CS(off), CD(off)) | 10pF | 10pF | 6pF | 6pF |
| Leakage Current (IS(off) Max) | 1µA | 100nA | 5µA | 5µA |
| Crosstalk | -58dB @ 1MHz | -58dB @ 1MHz | Not specified | Not specified |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 125°C | -40°C ~ 125°C |
| Package / Case | 8-LSSOP, 8-MSOP (0.110", 2.80mm) | 8-LSSOP, 8-MSOP (0.110", 2.80mm) | 8-TSSOP, 8-MSOP (0.118", 3.00mm) | 8-TSSOP, 8-MSOP (0.118", 3.00mm) |
| Product Status | Last Time Buy | Active | Active | Active |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
Engineering Selection Recommendations
SN74LVC2G53DCTR (MFR Recommended Substitute)
The SN74LVC2G53DCTR is the primary recommended substitute. Manufactured by Texas Instruments, it maintains identical electrical specifications and package footprint as the SN74LVC2G53DCT3. The only difference is packaging format: Tape & Reel (TR) versus Cut Tape (CT). This substitute is in Active product status, ensuring long-term availability and supply chain stability. All compliance certifications (ROHS3, MSL 1) are maintained. Leakage current is improved to 100nA maximum. This part is suitable for direct replacement in new designs and production transitions.
74LVC1G53DP,125 and 74LVC2G53DP,125 (Similar Substitutes)
These Nexperia USA Inc. parts provide functional equivalence with notable electrical improvements: on-state resistance reduced to 10Ohm, switch time improved to 3.8ns for both Ton and Toff, and extended operating temperature range to -40°C ~ 125°C. However, package dimensions differ (0.118" width versus 0.110"), requiring PCB layout verification. Both parts are in Active status with full ROHS3 compliance. These substitutes are suitable when improved electrical performance and extended temperature range are beneficial and PCB footprint accommodation is feasible.
Frequently Asked Questions (FAQ)
Q: Can the SN74LVC2G53DCTR be used as a direct replacement for the SN74LVC2G53DCT3?
A: Yes. Both parts are manufactured by Texas Instruments with identical electrical specifications, supply voltage range, operating temperature, and package footprint. The difference is packaging format (Tape & Reel versus Cut Tape). The SN74LVC2G53DCTR is in Active status, making it the recommended substitute for procurement and design continuity.
Q: What are the key differences between the Texas Instruments and Nexperia substitutes?
A: The Nexperia parts (74LVC1G53DP,125 and 74LVC2G53DP,125) offer improved electrical performance: lower on-state resistance (10Ohm versus 13Ohm), faster switching times (3.8ns versus 4.5ns/8ns), and extended operating temperature range (-40°C ~ 125°C versus -40°C ~ 85°C). However, they use a different package variant (8-TSSOP with 0.118" width versus 8-LSSOP with 0.110" width), requiring PCB footprint verification.
Q: Are the Nexperia parts pin-compatible with the original SN74LVC2G53DCT3?
A: Both use 8-pin surface mount packages (8-TSSOP and 8-LSSOP), but the physical dimensions differ (0.118" versus 0.110" width). Pin assignment compatibility must be verified against the respective datasheets before PCB layout implementation.
Q: Do all substitute parts meet RoHS3 compliance?
A: Yes. The SN74LVC2G53DCTR, 74LVC1G53DP,125, and 74LVC2G53DP,125 are all ROHS3 compliant with MSL rating of 1 (Unlimited), matching the original part's compliance status.
Q: Which substitute should be selected for new designs?
A: For new designs requiring long-term availability and minimal design changes, the SN74LVC2G53DCTR is recommended. For applications where improved electrical performance and extended temperature range justify PCB layout modifications, the Nexperia parts offer superior specifications.
Q: What is the significance of the Last Time Buy status for the SN74LVC2G53DCT3?
A: Last Time Buy status indicates the manufacturer will discontinue production. Existing inventory is available, but future procurement will not be possible. Substitution planning is necessary for designs requiring long-term production or future revisions.
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