SN74ALS640B-1DWRAlternatives & Equivalent Parts
About SN74ALS640B-1DWR
SN74ALS640B-1DWR 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 | SN74ALS640B-1DWRSource | SN74ALS640BDW | SN74ALS640B-1DWG4 |
|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Package Type | Small Outline Packages | — | Small Outline Packages |
| Pin Count | 20 | — | 20 |
| Temperature Range | ~ 70.0°C | — | ~ 70.0°C |
| Price | $2.2900 | $1.5000 | — |
| Stock | In Stock | In Stock | In Stock |
| Lifecycle | ACTIVE | ACTIVE | OBSOLETE |
| Electrical Parameters | |||
| Pbfree Code | Yes | — | — |
| YTEOL | 15 | — | 0 |
| Additional Feature | WITH DIRECTION CONTROL | — | WITH DIRECTION CONTROL |
| Control Type | COMMON CONTROL | — | COMMON CONTROL |
| Count Direction | BIDIRECTIONAL | — | BIDIRECTIONAL |
| Family | ALS | — | ALS |
| JESD-30 Code | R-PDSO-G20 | — | R-PDSO-G20 |
| JESD-609 Code | e4 | — | e4 |
| Load Capacitance (CL) | 50 pF | — | 50 pF |
| Logic IC Type | BUS TRANSCEIVER | — | BUS TRANSCEIVER |
| Max I(ol) | 0.048 A | — | 0.048 A |
| Number of Bits | 8 | — | 8 |
| Number of Functions | 8 | — | 1 |
| Number of Ports | 2 | — | 2 |
| Output Characteristics | 3-STATE | — | 3-STATE |
| Output Polarity | INVERTED | — | INVERTED |
| Package Body Material | PLASTIC/EPOXY | — | PLASTIC/EPOXY |
| Package Equivalence Code | SOP20,.4 | — | SOP20,.4 |
| Package Shape | RECTANGULAR | — | RECTANGULAR |
| Package Style | SMALL OUTLINE | — | SMALL OUTLINE |
| Packing Method | TR | — | TUBE |
| Peak Reflow Temperature (Cel) | 260 | — | 260 |
| Power Supply Current-Max (ICC) | 55 mA | — | 55 mA |
| Prop. Delay@Nom-Sup | 11 ns | — | 11 ns |
| Propagation Delay (tpd) | 10 ns | — | 10 ns |
| Qualification Status | Not Qualified | — | Not Qualified |
| Schmitt Trigger | NO | — | — |
| Supply Voltage-Max (Vsup) | 5.25 V | — | 5.5 V |
| Supply Voltage-Min (Vsup) | 4.75 V | — | 4.5 V |
| Supply Voltage-Nom (Vsup) | 5 V | — | 5 V |
| Surface Mount | YES | — | YES |
| Technology | TTL | — | TTL |
| Temperature Grade | COMMERCIAL | — | COMMERCIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | — | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING | — | GULL WING |
| Terminal Pitch | 1.27 mm | — | 1.27 mm |
| Terminal Position | DUAL | — | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 | — | 30 |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
Need pricing on these alternatives?
Get one quote covering all 2 alternatives for SN74ALS640B-1DWR — response within 24 hours.
Quick Links
Rochester Electronics LLC ALS SERIES, 8-BIT TRANSCEIVER, INVERTED OUTPUT, PDSO20, GREEN, PLASTIC, SOP-20
Bus Transceiver, ALS Series, 1-Func, 8-Bit, Inverted Output, TTL, PDSO20
Why Look for Alternatives?
Finding alternatives for SN74ALS640B-1DWR 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 SN74ALS640B-1DWR 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 SN74ALS640B-1DWR?
Known equivalents for SN74ALS640B-1DWR include SN74ALS640BDW, SN74ALS640B-1DWG4. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of SN74ALS640B-1DWR?
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 SN74ALS640B-1DWR 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.