Overview
The SN74LS244N is an octal buffer and line driver integrated circuit produced by Texas Instruments. This device is designed to enhance the performance and density of three-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. It features a combination of inverting and non-inverting outputs, symmetrical active-low output-control inputs, and complementary output-control inputs. The SN74LS244N is part of the 74LS series, known for its low power Schottky logic family, which offers improved speed and reduced power consumption compared to standard TTL logic.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package Type | 20-DIP (0.300", 7.62mm) | |
| Logic Type | Buffer, Non-Inverting | |
| Number of Elements | 2 | |
| Number of Bits per Element | 4 | |
| Output Type | Push-Pull | |
| Current - Output High, Low | 15mA, 24mA | |
| Voltage - Supply | 4.75 V ~ 5.25 V | |
| Operating Temperature | 0°C ~ 70°C (TA) | |
| Mounting Type | Through Hole | |
| Maximum Propagation Delay (tpd) | 15 ns at 5 V | ns |
Key Features
- 3-State Outputs: Drive bus lines or buffer memory address registers.
- PNP Inputs: Reduce DC loading.
- Hysteresis at Inputs: Improves noise margins.
- High Fan-Out: Supports driving multiple loads.
- Improved Fan-In: Reduces input loading.
- 400-mV Noise Margin: Enhances signal integrity.
- Ability to Drive Terminated Lines: Down to 133 Ω.
Applications
- Servers
- LED Displays
- Network Switches
- Telecom Infrastructure
- Motor Drivers
- I/O Expanders
Q & A
- What is the SN74LS244N used for?
The SN74LS244N is used as an octal buffer and line driver to improve the performance and density of three-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters.
- What is the package type of the SN74LS244N?
The SN74LS244N comes in a 20-DIP (0.300", 7.62mm) package.
- What is the operating voltage range of the SN74LS244N?
The operating voltage range is 4.75 V to 5.25 V.
- What is the maximum propagation delay of the SN74LS244N?
The maximum propagation delay is 15 ns at 5 V.
- What are the key features of the SN74LS244N?
Key features include 3-state outputs, PNP inputs, hysteresis at inputs, high fan-out, improved fan-in, and a 400-mV noise margin.
- What applications is the SN74LS244N suitable for?
It is suitable for servers, LED displays, network switches, telecom infrastructure, motor drivers, and I/O expanders.
- What is the output type of the SN74LS244N?
The output type is push-pull.
- Can the SN74LS244N drive terminated lines?
Yes, it can drive terminated lines down to 133 Ω.
- What is the operating temperature range of the SN74LS244N?
The operating temperature range is 0°C to 70°C.
- Is the SN74LS244N RoHS compliant?
Yes, the SN74LS244N is RoHS compliant.
