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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | 74LS |
| Packaging | Bulk | |
| Part Status | Active |
| Logic Type | Buffer, Inverting |
| Number of Elements | 2 |
| Number of Bits per Element | 2, 4 (Hex) |
| Input Type | - |
| Output Type | 3-State |
| Current - Output High, Low | 2.6mA, 24mA |
| Voltage - Supply | 4.75V ~ 5.25V |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | 16-DIP (0.300", 7.62mm) |
| Supplier Device Package | 16-PDIP |
The SN74LS368ANE4 from Texas Instruments is a dual inverting buffer with 3-State outputs, designed for 5V TTL systems. It operates from 4.75V to 5.25V and can sink 24mA, making it suitable for driving LEDs or relays. The 16-DIP package is easy to handle in through-hole designs. This IC is ideal for signal inversion, bus buffering, and interfacing in industrial controls, test equipment, and educational projects.
- Low-Power Schottky Technology: Reduces power consumption while maintaining speed.
- 3-State Outputs: Enables bus sharing with high-impedance state.
- High Sink Current (24mA): Drives LEDs and relays directly.
- Standard 5V Operation: Compatible with TTL logic levels.
Inverting Bus Buffers in 5V Systems
Use the SN74LS368ANE4 to invert and buffer control signals in legacy 5V digital systems, such as memory address decoding.
Driving High-Current Sinking Loads
The 24mA sink capability allows direct driving of LEDs, relays, or small solenoids in industrial control circuits.
Signal Inversion for Active-Low Logic
In systems where active-low signals are required, this buffer provides the necessary inversion without extra gates.
Interfacing TTL to Peripheral Chips
Buffer and invert signals going to peripheral ICs like LCD controllers or legacy interface chips, ensuring proper logic levels.
Prototyping and Education
Ideal for breadboard-based projects in educational settings, teaching bus architecture and 3-State logic concepts.
Replacement for Obsolete Parts
Use as a drop-in replacement for older inverting buffers in maintenance of vintage computing equipment.
- Q: What is the logic family of the SN74LS368ANE4?
- A: It belongs to the 74LS (Low-Power Schottky) family, offering a balance of speed and power consumption.
- Q: What is the function of this IC?
- A: It is a dual inverting buffer with 3-State outputs, used to invert and buffer signals.
- Q: How many channels does it have?
- A: It has 2 channels (each with 4 buffers) in a 16-DIP package.
- Q: What is the output type?
- A: The outputs are 3-State, allowing for bus connection with high-impedance control.
- Q: What is the voltage range?
- A: It operates from 4.75V to 5.25V, typical for 5V TTL logic.
- Q: What is the output current?
- A: It can sink 24mA and source 2.6mA, suitable for TTL loads.
SN74LS368ANE4.pdf
- Q: What is the logic family of the SN74LS368ANE4?
- A: It belongs to the 74LS (Low-Power Schottky) family, offering a balance of speed and power consumption.
- Q: What is the function of this IC?
- A: It is a dual inverting buffer with 3-State outputs, used to invert and buffer signals.
- Q: How many channels does it have?
- A: It has 2 channels (each with 4 buffers) in a 16-DIP package.
- Q: What is the output type?
- A: The outputs are 3-State, allowing for bus connection with high-impedance control.
- Q: What is the voltage range?
- A: It operates from 4.75V to 5.25V, typical for 5V TTL logic.
- Q: What is the output current?
- A: It can sink 24mA and source 2.6mA, suitable for TTL loads.