SN74ALS640BNAlternatives & Equivalent Parts
About SN74ALS640BN
SN74ALS640BN is a Integrated Circuit component manufactured by Texas Instruments. It comes in a Dual-In-Line Packages package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.
Need pricing on these alternatives?
Get one quote covering all 3 alternatives for SN74ALS640BN — response within 24 hours.
Specification Comparison
| Parameter | SN74ALS640BNSource | SN74ALS640BNSR | SN74ALS620AN | SN74ALS245AN |
|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package Type | Dual-In-Line Packages | Small Outline Packages | — | Dual-In-Line Packages |
| Pin Count | 20 | 20 | — | 20 |
| Temperature Range | ~ 70.0°C | ~ 70.0°C | — | ~ 70.0°C |
| Price | $1.0185 | $2.3600 | $2.7950 | $0.3465 |
| Stock | In Stock | In Stock | In Stock | In Stock |
| Lifecycle | ACTIVE | ACTIVE | — | ACTIVE |
| Electrical Parameters | ||||
| YTEOL | 15 | 15 | — | 15 |
| Additional Feature | WITH DIRECTION CONTROL | — | — | WITH DIRECTION CONTROL,84030012A,8403001RA,8403001SA IS DELETED FOR SUBGROUP FIX |
| Control Type | COMMON CONTROL | COMMON CONTROL | — | COMMON CONTROL |
| Count Direction | BIDIRECTIONAL | BIDIRECTIONAL | — | BIDIRECTIONAL |
| Family | ALS | ALS | — | ALS |
| JESD-30 Code | R-PDIP-T20 | R-PDSO-G20 | — | R-PDIP-T20 |
| JESD-609 Code | e4 | e4 | — | e4 |
| Load Capacitance (CL) | 50 pF | 50 pF | — | 50 pF |
| Logic IC Type | BUS TRANSCEIVER | BUS TRANSCEIVER | — | BUS TRANSCEIVER |
| Max I(ol) | 0.024 A | 0.024 A | — | 0.024 A |
| Number of Bits | 8 | 8 | — | 8 |
| Number of Functions | 8 | 8 | — | 8 |
| Number of Ports | 2 | 2 | — | 2 |
| Output Characteristics | 3-STATE | 3-STATE | — | 3-STATE |
| Output Polarity | INVERTED | INVERTED | — | TRUE |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | — | PLASTIC/EPOXY |
| Package Equivalence Code | DIP20,.3 | SOP20,.3 | — | DIP20,.3 |
| Package Shape | RECTANGULAR | RECTANGULAR | — | RECTANGULAR |
| Package Style | IN-LINE | SMALL OUTLINE | — | IN-LINE |
| Packing Method | TUBE | TR | — | TUBE |
| Power Supply Current-Max (ICC) | 55 mA | 55 mA | — | 55 mA |
| Prop. Delay@Nom-Sup | 11 ns | 11 ns | — | 10 ns |
| Propagation Delay (tpd) | 10 ns | 11 ns | — | 10 ns |
| Qualification Status | Not Qualified | Not Qualified | — | Not Qualified |
| Schmitt Trigger | NO | NO | — | NO |
| Supply Voltage-Max (Vsup) | 5.5 V | 5.5 V | — | 5.5 V |
| Supply Voltage-Min (Vsup) | 4.5 V | 4.5 V | — | 4.5 V |
| Supply Voltage-Nom (Vsup) | 5 V | 5 V | — | 5 V |
| Surface Mount | NO | YES | — | NO |
| Technology | TTL | TTL | — | TTL |
| Temperature Grade | COMMERCIAL | COMMERCIAL | — | COMMERCIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | Nickel/Palladium/Gold (Ni/Pd/Au) | — | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | THROUGH-HOLE | GULL WING | — | THROUGH-HOLE |
| Terminal Pitch | 2.54 mm | 1.27 mm | — | 2.54 mm |
| Terminal Position | DUAL | DUAL | — | DUAL |
| Pbfree Code | — | Yes | — | Yes |
| Peak Reflow Temperature (Cel) | — | 260 | — | — |
| Time@Peak Reflow Temperature-Max (s) | — | 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 3 alternatives for SN74ALS640BN — response within 24 hours.
Quick Links
Bus Transceiver, ALS Series, 8-Func, 8-Bit, Inverted Output, TTL, PDSO20
Bus Transceiver, ALS Series, 8-Func, 8-Bit, Inverted Output, TTL, PDIP20
Bus Transceiver, ALS Series, 8-Func, 8-Bit, True Output, TTL, PDIP20
Why Look for Alternatives?
Finding alternatives for SN74ALS640BN 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 SN74ALS640BN 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.
Can't Find What You Need?
Our sourcing team can help find compatible alternatives for SN74ALS640BN. Get expert recommendations within 24 hours.
FAQ
What is equivalent to SN74ALS640BN?
Known equivalents for SN74ALS640BN include SN74ALS640BNSR, SN74ALS620AN, SN74ALS245AN. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of SN74ALS640BN?
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 SN74ALS640BN 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.