74LS244 Datasheet PDF – Octal Buffer and Line Driver

Part Number : 74LS244

Function : Octal Buffers and Line Drivers With 3-State Outputs

Package : DIP 20 Pin, LCCC 20 Pin Type

Manufactures : Texas Instruments

Image and pinouts :

74LS244 Datasheet Pinout

Description :

These octal buffers and line drivers are designed specifically to improve both the performance and density of three-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. The designer has a choice of selected combinations of inverting and noninverting outputs, symmetrical, active-low output-control (G)\ inputs, and complementary output-control (G and G\) inputs. These devices feature high fan-out, improved fan-in, and 400-mV noise margin. The SN74LS’ and SN74S’ devices can be used to drive terminated lines down to 133 Ω.



  • 3-State Outputs Drive Bus Lines or Buffer Memory Address Registers
  • PNP Inputs Reduce DC Loading
  • Hysteresis at Inputs Improves Noise Margins

Applications :

• Servers

• LED Displays

• Network Switches

• Telecom Infrastructure

• Motor Drivers

74LS244 Datasheet

74LS244 pdf