74LS244 Octal Driver Tri-State [Original]

74LS244 Octal Tri-State Buffer & Line Driver IC

The 74LS244 is an Octal Tri-State Buffer and Line Driver integrated circuit. It is engineered for digital data transmission within various electronic systems. This IC features tri-state outputs, enabling direct connection to bus lines without requiring external components. PNP inputs are incorporated to minimize DC loading, which aids in signal integrity. Each data line input includes 400 mV of hysteresis for noise rejection. The device is designed as a bus-oriented transmitter/receiver. It provides standard TTL switching voltages for broad compatibility. This IC supports applications such as memory-address and high-speed clock driving.

Specifications:

• Logic Family: LS TTL
• Function: Octal Buffer/Line Driver
• Output Type: Tri-State
• Number of Channels: 8
• Input Type: PNP with Hysteresis
• Supply Voltage: 4.75V to 5.25V (Standard TTL)
• Output Current (IOL): 24 mA (typical)
• Propagation Delay: ~15 ns (typical)
• Operating Temperature: 0°C to 70°C (Commercial)
• Package Type: DIP-20 (Dual In-line Package)

Key features and benefits:

• Tri-state outputs for direct bus line interfacing
• PNP inputs minimize DC loading on bus lines
• Integrated 400mV hysteresis for noise rejection
• Designed for bus-oriented transmitter/receiver applications
• Standard TTL switching voltage compatibility
• High fanout capability, driving terminated lines down to 133Ω
• Contributes to PC board density and system performance

Applications:

• Memory-address driving in microcomputer systems
• High-speed clock driving for synchronous circuits
• Bus-oriented data transmission and reception
• General data buffering and line driving in digital systems
• Interfacing between logic families or voltage levels

Frequently Asked Questions:

Q: What is the primary function of the 74LS244 IC?
A: The 74LS244 is an Octal Tri-State Buffer and Line Driver IC designed for robust digital data transmission and reception in various systems.

Q: What are the key output characteristics of the 74LS244?
A: The 74LS244 features tri-state outputs, allowing direct connection to bus lines. It provides a typical output current (IOL) of 24 mA.

Q: What supply voltage range does the 74LS244 operate within?
A: The 74LS244 operates within a standard TTL supply voltage range of 4.75V to 5.25V.

Package Includes:

*Image shown is a representation only.

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