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CD74HCT253MT Equivalent & Substitute Parts
Part Overview
The CD74HCT253MT is a 2 x 4:1 multiplexer logic integrated circuit manufactured by Texas Instruments in a 16-SOIC surface mount package. This part is classified as Last Time Buy, indicating limited future availability. The device operates with a single 4.5V to 5.5V supply and is suitable for applications requiring signal routing and data selection in digital systems. Equivalent and substitute parts are necessary to ensure design continuity, manage supply chain risks, and accommodate different packaging or sourcing requirements.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Type | Multiplexer |
| Circuit Configuration | 2 x 4:1 |
| Independent Circuits | 1 |
| Output Current (High/Low) | 4mA / 4mA |
| Supply Voltage Range | 4.5V – 5.5V |
| Operating Temperature Range | -55°C to 125°C |
| Package Type | 16-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the CD74HCT253MT is determined by the following critical parameters: multiplexer type and circuit configuration (2 x 4:1), output current capability, supply voltage range (4.5V – 5.5V), operating temperature range, package type (16-SOIC), and surface mount mounting type. Parts meeting these criteria are classified as parametric equivalents. Packaging format variations (Cut Tape, Tape & Reel, Bulk) do not affect functional substitution but may impact procurement and handling. Manufacturer differences are acceptable provided all electrical and mechanical specifications align with the main part requirements.
Parameter Comparison
| Part Number | Manufacturer | Type | Circuit | Output Current (mA) | Supply Voltage | Temp Range (°C) | Package | Product Status |
|---|---|---|---|---|---|---|---|---|
| CD74HCT253MT | Texas Instruments | Multiplexer | 2 x 4:1 | 4 / 4 | 4.5V – 5.5V | -55 to 125 | 16-SOIC | Last Time Buy |
| CD74HCT153M96 | Texas Instruments | Multiplexer | 2 x 4:1 | 4 / 4 | 4.5V – 5.5V | -55 to 125 | 16-SOIC | Active |
| CD74HCT153MT | Texas Instruments | Multiplexer | 2 x 4:1 | 4 / 4 | 4.5V – 5.5V | -55 to 125 | 16-SOIC | Last Time Buy |
| CD74HCT253M96 | Texas Instruments | Multiplexer | 2 x 4:1 | 4 / 4 | 4.5V – 5.5V | -55 to 125 | 16-SOIC | Obsolete |
| 74HCT253D,653 | Nexperia USA Inc. | Multiplexer | 2 x 4:1 | 6 / 6 | 4.5V – 5.5V | -40 to 125 | 16-SOIC | Active |
| 74HCT253D-Q100,118 | NXP USA Inc. | Multiplexer | 2 x 4:1 | 6 / 6 | 4.5V – 5.5V | -40 to 125 | 16-SOIC | Active |
Engineering Selection Recommendations
For direct functional replacement with identical electrical performance and temperature range, CD74HCT153M96 and CD74HCT153MT are preferred as they maintain the 4mA output current specification and -55°C to 125°C operating range of the main part. Both are Texas Instruments products with Active or Last Time Buy status and full ROHS3 compliance.
For applications where the lower operating temperature limit of -40°C is acceptable, 74HCT253D,653 (Nexperia) and 74HCT253D-Q100,118 (NXP) provide functional equivalence with higher output current capability (6mA). The 74HCT253D-Q100,118 variant includes AEC-Q100 automotive qualification, suitable for automotive-grade applications.
CD74HCT253M96 is classified as Obsolete and should be avoided for new designs despite parametric equivalence.
Frequently Asked Questions (FAQ)
Q: Can CD74HCT153M96 directly replace CD74HCT253MT? A: Yes. Both parts are 2 x 4:1 multiplexers with identical output current (4mA), supply voltage (4.5V – 5.5V), temperature range (-55°C to 125°C), and 16-SOIC package. The primary difference is packaging format (Tape & Reel vs. Cut Tape) and product status.
Q: What is the difference between CD74HCT253MT and 74HCT253D,653? A: Both are 2 x 4:1 multiplexers in 16-SOIC packages with 4.5V – 5.5V supply. The 74HCT253D,653 has higher output current (6mA vs. 4mA) and a narrower operating temperature range (-40°C to 125°C vs. -55°C to 125°C). The 74HCT253D,653 is manufactured by Nexperia and is currently Active.
Q: Is 74HCT253D-Q100,118 suitable for automotive applications? A: Yes. The 74HCT253D-Q100,118 carries AEC-Q100 automotive qualification and is suitable for automotive-grade designs. It maintains the same 2 x 4:1 multiplexer function, 16-SOIC package, and 4.5V – 5.5V supply voltage as the main part.
Q: Why is CD74HCT253M96 listed as Obsolete? A: CD74HCT253M96 is classified as Obsolete by the manufacturer. Although it meets all parametric requirements for substitution, it should not be selected for new designs due to limited future availability and potential supply discontinuation.
Q: Does packaging format affect functional compatibility? A: No. Cut Tape (CT), Tape & Reel (TR), and Bulk packaging formats do not affect electrical or mechanical function. Selection should be based on procurement and assembly requirements.
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