SN74ALS244CDW Texas Instruments In Stock
SN74ALS244CDW is an 8-channel octal bus buffer/line driver by Texas Instruments, featuring ALS logic family with 8 ns propagation delay and 24 mA sink current. Key specs: 4.5–5.5 V supply, 8 ns tpd, 0–70 °C operating range. From $0.2988, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- —
- Lifecycle
- ACTIVE
- Datasheet
- N/A
- Price
- From $0.2988(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SN74ALS244CDW?
- 8-channel octal bus buffer with 3-state outputs for high-impedance bus control
- Fast ALS logic family with 8 ns propagation delay for high-speed signal buffering
- 24 mA output sink current enables direct LED or bus driving without external buffers
- Wide 4.5–5.5 V supply range compatible with standard TTL and CMOS systems
- DW package (SOIC-20) for compact PCB footprint in space-constrained designs
What is SN74ALS244CDW used for?
SN74ALS244CDW is widely used as a bus interface buffer in microprocessor systems to isolate and drive address or data buses. It is suitable for memory expansion boards, I/O port expansion, and any application requiring unidirectional signal buffering with 3-state control. The device is also used in industrial control equipment and communication cards where reliable TTL-level signal driving is essential.
What are the specifications of SN74ALS244CDW?
| Supply Voltage (VCC) | 4.5–5.5V |
| Propagation Delay (tpd) | 8ns |
| Output Sink Current (IOL) | 24mA |
| Output Source Current (IOH) | -15mA |
| Operating Temperature | 0 to 70°C |
| Number of Channels | 8 |
| Logic Family | ALS |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
What are equivalent replacements for SN74ALS244CDW?
Compatible alternatives and drop-in replacements for SN74ALS244CDW:
Pin-compatible octal 3-state buffer, HCT logic family, TTL-compatible inputs, 2–6V supply
Frequently Asked Questions
What is the SN74ALS244CDW and what does it do?
The SN74ALS244CDW is an octal bus buffer and line driver from Texas Instruments' ALS (Advanced Low-power Schottky) logic family. It features 8 independent channels with 3-state outputs, making it ideal for driving high-capacitance or low-impedance bus lines. It provides 8 ns propagation delay, 24 mA sink current, and operates from a 4.5–5.5 V supply.
What are the typical applications for the SN74ALS244CDW?
The SN74ALS244CDW is commonly used in bus buffering and line driving applications in industrial control systems, computer peripherals, and data communication equipment. Its 3-state outputs make it well-suited for bidirectional bus architectures, memory address drivers, and any application requiring signal isolation between bus segments.
What is the operating temperature range and package type of the SN74ALS244CDW?
The SN74ALS244CDW operates over a commercial temperature range of 0°C to 70°C. It is housed in a 20-pin wide SOIC (DW) surface-mount package, which offers a compact footprint suitable for automated PCB assembly in space-constrained designs.
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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.
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