SN74ALS642A-1DBAlternatives & Equivalent Parts
About SN74ALS642A-1DB
SN74ALS642A-1DB is a Integrated Circuit component manufactured by Texas Instruments. It comes in a Small Outline Packages package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.
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Specification Comparison
| Parameter | SN74ALS642A-1DBSource | SN74ALS642A-1NSR |
|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments |
| Package Type | Small Outline Packages | Small Outline Packages |
| Pin Count | 20 | 20 |
| Temperature Range | — | ~ 70.0°C |
| Price | $1.9600 | $4.8210 |
| Stock | In Stock | In Stock |
| Lifecycle | — | ACTIVE |
| Electrical Parameters | ||
| Pbfree Code | — | Yes |
| YTEOL | — | 15 |
| Control Type | — | COMMON CONTROL |
| Count Direction | — | BIDIRECTIONAL |
| Family | — | ALS |
| JESD-30 Code | — | R-PDSO-G20 |
| JESD-609 Code | — | e4 |
| Load Capacitance (CL) | — | 50 pF |
| Logic IC Type | — | BUS TRANSCEIVER |
| Max I(ol) | — | 0.048 A |
| Number of Bits | — | 8 |
| Number of Functions | — | 8 |
| Number of Ports | — | 2 |
| Output Characteristics | — | OPEN-COLLECTOR |
| Output Polarity | — | INVERTED |
| Package Body Material | — | PLASTIC/EPOXY |
| Package Equivalence Code | — | SOP20,.3 |
| Package Shape | — | RECTANGULAR |
| Package Style | — | SMALL OUTLINE |
| Packing Method | — | TR |
| Peak Reflow Temperature (Cel) | — | 260 |
| Power Supply Current-Max (ICC) | — | 28 mA |
| Prop. Delay@Nom-Sup | — | 30 ns |
| Propagation Delay (tpd) | — | 30 ns |
| Qualification Status | — | Not Qualified |
| Schmitt Trigger | — | NO |
| Supply Voltage-Max (Vsup) | — | 5.25 V |
| Supply Voltage-Min (Vsup) | — | 4.75 V |
| Supply Voltage-Nom (Vsup) | — | 5 V |
| Surface Mount | — | YES |
| Technology | — | TTL |
| Temperature Grade | — | COMMERCIAL |
| Terminal Finish | — | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | — | GULL WING |
| Terminal Pitch | — | 1.27 mm |
| Terminal Position | — | DUAL |
| Time@Peak Reflow Temperature-Max (s) | — | 30 |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
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Quick Links
Bus Transceiver, ALS Series, 8-Func, 8-Bit, Inverted Output, TTL, PDSO20
Why Look for Alternatives?
Finding alternatives for SN74ALS642A-1DB is essential for supply chain resilience. Component shortages, long lead times, and end-of-life notices can disrupt production schedules. Having verified alternative parts ensures your designs remain manufacturable.
When evaluating SN74ALS642A-1DB replacements, consider key parameters such as package compatibility, electrical specifications, and operating temperature range. Our engineering team can help verify pin-to-pin compatibility for your specific application.
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FAQ
What is equivalent to SN74ALS642A-1DB?
Known equivalents for SN74ALS642A-1DB include SN74ALS642A-1NSR. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of SN74ALS642A-1DB?
In many cases, yes. Cross-manufacturer alternatives exist for most standard components. However, always verify pin compatibility, electrical specs, and package dimensions before substituting in production.
How do I verify SN74ALS642A-1DB alternatives?
Compare the datasheet specifications including pinout, voltage ratings, timing parameters, and package dimensions. FindMyChip's engineering team can help with compatibility verification — submit an RFQ to get started.