SN74LS244NE4 Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
SN74LS244NE4 is an octal buffer and line driver with 3-state outputs from Texas Instruments. Features unidirectional LS-family logic with enable-low control, 45 pF load capacitance, and 20-pin DIP package. From $0.52 in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- SN74LS244NE4 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.5154(MOQ 1)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SN74LS244NE4?
- Octal buffer/line driver with 3-state outputs for high-impedance bus isolation
- Enable-low control input for simplified bus management and reduced glitch risk
- LS-family TTL logic with 45 pF load capacitance for reliable signal integrity
- 20-pin DIP package (PDIP-T20) for easy through-hole PCB integration
- RoHS compliant (e4 JEDEC-609) with REACH compliance and 15-year YTEOL support
What is SN74LS244NE4 used for?
The SN74LS244NE4 is widely used in data bus buffering and line driving applications in microprocessor systems, where its 3-state outputs allow multiple devices to share a common bus without contention. It is commonly found in memory interface circuits, I/O port expansion, and address/data bus isolation in embedded and industrial control designs. The enable-low control and unidirectional drive capability also make it suitable for signal level restoration and fanout improvement in TTL logic systems.
What are the specifications of SN74LS244NE4?
| Pbfree Code | Yes |
| Reach Compliance Code | Compliant |
| YTEOL | 15 |
| Control Type | ENABLE LOW |
| Count Direction | UNIDIRECTIONAL |
| Family | LS |
| JESD-30 Code | R-PDIP-T20 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 45pF |
| Logic IC Type | BUS DRIVER |
| Max I(ol) | 0.024A |
| Number of Bits | 4 |
| 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) | 50mA |
| Prop. Delay@Nom-Sup | 18ns |
| Propagation Delay (tpd) | 18ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.25V |
| Supply Voltage-Min (Vsup) | 4.75V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | NO |
| Technology | TTL |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| ## SN74LS244NE4 Alternates Showing results | Image |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Malaysia |
Where can I find the SN74LS244NE4 datasheet?
SN74LS244NE4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SN74LS244NE4?
Compatible alternatives and drop-in replacements for SN74LS244NE4:
suggested
suggested
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Frequently Asked Questions
What is the SN74LS244NE4 and what does it do?
The SN74LS244NE4 is an octal buffer and line driver IC from Texas Instruments with 3-state outputs. It provides eight independent buffer channels in a 20-pin DIP package, supporting unidirectional LS-family TTL logic with an active-low enable control. It is designed to drive high-capacitance or low-impedance loads on data buses while isolating the bus when outputs are in the high-impedance (3-state) mode.
What are the key electrical specifications of the SN74LS244NE4?
The SN74LS244NE4 operates on a 5V TTL supply and supports a load capacitance (CL) of 45 pF per channel. It belongs to the LS (Low-power Schottky) logic family, offering typical propagation delays around 8–12 ns. The enable-low control input activates all eight outputs simultaneously, making bus enable/disable straightforward in system designs.
What are typical applications for the SN74LS244NE4?
Typical applications include microprocessor address and data bus buffering, I/O port expansion, memory interface driving, and signal fanout improvement in TTL logic systems. Its 3-state outputs allow safe bus sharing among multiple drivers, making it a standard choice in industrial control boards, embedded systems, and legacy digital designs requiring through-hole components.
Is the SN74LS244NE4 RoHS compliant, and what package does it use?
Yes, the SN74LS244NE4 is RoHS compliant, indicated by the 'e4' JEDEC-609 code and REACH compliance status. It comes in a 20-pin dual-in-line (PDIP-T20) through-hole package, which is ideal for prototyping and applications that require robust mechanical mounting. The part also carries a 15-year end-of-life (YTEOL) rating, ensuring long-term supply availability.
Where can I buy the SN74LS244NE4 and what is the price?
The SN74LS244NE4 is available from authorized distributors worldwide, including major component suppliers. Pricing starts from approximately $0.52 per unit at volume, with stock available for immediate worldwide shipping. FindMyChip aggregates inventory from multiple distributors so you can compare prices and lead times to find the best deal.
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Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $3.8500 | $3.85 |
| 100+ | $2.8800 | $288.00 |
| 500+ | $0.7820 | $391.00 |
| 740+ | $0.5154 | $381.39 |
In Stock · 24h Response · Worldwide Shipping
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