SN74LS645NAlternatives & Equivalent Parts
About SN74LS645N
SN74LS645N 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.
Specification Comparison
| Parameter | SN74LS645NSource | SN74LS645NS |
|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments |
| Package Type | Dual-In-Line Packages | — |
| Pin Count | 20 | — |
| Temperature Range | ~ 70.0°C | — |
| Price | $1.0600 | $0.8804 |
| Electrical Parameters | ||
| YTEOL | 15 | — |
| Additional Feature | WITH DIRECTION CONTROL | — |
| Control Type | COMMON CONTROL | — |
| Count Direction | BIDIRECTIONAL | — |
| Family | LS | — |
| JESD-30 Code | R-PDIP-T20 | — |
| JESD-609 Code | e4 | — |
| Load Capacitance (CL) | 45 pF | — |
| Logic IC Type | BUS TRANSCEIVER | — |
| Max I(ol) | 0.024 A | — |
| Number of Bits | 8 | — |
| Number of Functions | 8 | — |
| Number of Ports | 2 | — |
| Output Characteristics | 3-STATE | — |
| Output Polarity | TRUE | — |
| Package Body Material | PLASTIC/EPOXY | — |
| Package Equivalence Code | DIP20,.3 | — |
| Package Shape | RECTANGULAR | — |
| Package Style | IN-LINE | — |
| Packing Method | TUBE | — |
| Power Supply Current-Max (ICC) | 95 mA | — |
| Prop. Delay@Nom-Sup | 15 ns | — |
| Propagation Delay (tpd) | 15 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 | NO | — |
| Technology | TTL | — |
| Temperature Grade | COMMERCIAL | — |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | — |
| Terminal Form | THROUGH-HOLE | — |
| Terminal Pitch | 2.54 mm | — |
| Terminal Position | DUAL | — |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
Quick Links
Bus Transceiver, LS Series, 1-Func, 8-Bit, True Output, TTL, PDIP20
Why Look for Alternatives?
Finding alternatives for SN74LS645N 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 SN74LS645N 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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What is equivalent to SN74LS645N?
Known equivalents for SN74LS645N include SN74LS645NS. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of SN74LS645N?
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 SN74LS645N 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.