SN74LS244NAlternatives & Equivalent Parts
About SN74LS244N
SN74LS244N 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 | SN74LS244NSource | SN74LS244NE4 | SN74LS245N | SN74LS74AN |
|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package Type | Dual-In-Line Packages | Dual-In-Line Packages | Dual-In-Line Packages | Dual-In-Line Packages |
| Pin Count | 20 | 20 | 20 | 14 |
| Temperature Range | ~ 70.0°C | ~ 70.0°C | ~ 70.0°C | ~ 70.0°C |
| Price | $0.5450 | $0.5154 | $0.4885 | $0.2400 |
| Electrical Parameters | ||||
| Pbfree Code | Yes | Yes | Yes | Yes |
| YTEOL | 15 | 15 | 15 | 15 |
| Control Type | ENABLE LOW | ENABLE LOW | COMMON CONTROL | — |
| Count Direction | UNIDIRECTIONAL | UNIDIRECTIONAL | BIDIRECTIONAL | — |
| Family | LS | LS | LS | LS |
| JESD-30 Code | R-PDIP-T20 | R-PDIP-T20 | R-PDIP-T20 | R-PDIP-T14 |
| JESD-609 Code | e4 | e4 | e4 | e4 |
| Load Capacitance (CL) | 45 pF | 45 pF | 45 pF | 15 pF |
| Logic IC Type | BUS DRIVER | BUS DRIVER | BUS TRANSCEIVER | D FLIP-FLOP |
| Max I(ol) | 0.024 A | 0.024 A | 0.024 A | 0.008 A |
| Number of Bits | 4 | 4 | 8 | 1 |
| Number of Functions | 8 | 8 | 8 | 2 |
| Number of Ports | 2 | 2 | 2 | — |
| Output Characteristics | 3-STATE | 3-STATE | 3-STATE | — |
| Output Polarity | TRUE | TRUE | TRUE | COMPLEMENTARY |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Equivalence Code | DIP20,.3 | DIP20,.3 | DIP20,.3 | DIP14,.3 |
| Package Shape | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR |
| Package Style | IN-LINE | IN-LINE | IN-LINE | IN-LINE |
| Packing Method | TUBE | TUBE | TUBE | TUBE |
| Power Supply Current-Max (ICC) | 50 mA | 50 mA | 95 mA | 8 mA |
| Prop. Delay@Nom-Sup | 18 ns | 18 ns | 12 ns | 40 ns |
| Propagation Delay (tpd) | 18 ns | 18 ns | 12 ns | 40 ns |
| Qualification Status | Not Qualified | Not Qualified | Not Qualified | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.25 V | 5.25 V | 5.25 V | 5.25 V |
| Supply Voltage-Min (Vsup) | 4.75 V | 4.75 V | 4.75 V | 4.75 V |
| Supply Voltage-Nom (Vsup) | 5 V | 5 V | 5 V | 5 V |
| Surface Mount | NO | NO | NO | NO |
| Technology | TTL | TTL | TTL | TTL |
| Temperature Grade | COMMERCIAL | COMMERCIAL | COMMERCIAL | COMMERCIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | Nickel/Palladium/Gold (Ni/Pd/Au) | Nickel/Palladium/Gold (Ni/Pd/Au) | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | THROUGH-HOLE | THROUGH-HOLE | THROUGH-HOLE | THROUGH-HOLE |
| Terminal Pitch | 2.54 mm | 2.54 mm | 2.54 mm | 2.54 mm |
| Terminal Position | DUAL | DUAL | DUAL | DUAL |
| ## SN74LS244N Alternates Showing results | Image | — | — | — |
| Reach Compliance Code | — | Compliant | — | — |
| ## SN74LS244NE4 Alternates Showing results | — | Image | — | — |
| Additional Feature | — | — | WITH DIRECTION CONTROL | — |
| Schmitt Trigger | — | — | NO | — |
| ## SN74LS245N Alternates Showing results | — | — | Image | — |
| Max Frequency@Nom-Sup | — | — | — | 25000000 Hz |
| Trigger Type | — | — | — | POSITIVE EDGE |
| fmax-Min | — | — | — | 35 MHz |
| ## SN74LS74AN Alternates Showing results | — | — | — | Image |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
Quick Links
Why Look for Alternatives?
Finding alternatives for SN74LS244N 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 SN74LS244N 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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Request Alternatives for SN74LS244NFAQ
What is equivalent to SN74LS244N?
Known equivalents for SN74LS244N include SN74LS244NE4, SN74LS245N, SN74LS74AN. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of SN74LS244N?
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 SN74LS244N 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.