Name: 74LS244
SKU: GPAC-IC-74LS244
Availability: InStock

Weight

0.04 lbs

Dimensions

1 × 0.5 × 0.5 in

SN74LS244 replacement chip. DIP-20, Octal Buffers and Line Drivers With 3-State Outputs

The 74LS244 is an octal buffer/line driver with 3-state outputs, and it belongs to the 74LS family of integrated circuits. This family is part of the larger 7400 series, which consists of various digital logic ICs (integrated circuits) designed for different applications. The “74” in the name indicates that it is a standard TTL (Transistor-Transistor Logic) device.

Here are some key features and details about the 74LS244:

Functionality:
- The 74LS244 is designed as an octal buffer, meaning it has eight separate buffer channels.
- Each channel is capable of driving high or low logic levels and can be individually enabled or disabled.
- The device is used to control the flow of data between two buses or systems.
3-State Outputs:
- The outputs of the 74LS244 are 3-state, which means they can be in one of three states: high, low, or high-impedance (disconnected).
- The high-impedance state allows multiple devices to be connected to the same bus without causing conflicts.
Pin Configuration:
- The IC comes in a 20-pin dual in-line package (DIP).
- It has eight input pins (A1 to A8) and eight corresponding output pins (Y1 to Y8).
- The device also features an active-low output enable pin (OE), which controls the 3-state outputs.
Voltage and Power:
- The 74LS244 typically operates with a power supply voltage of 4.75 to 5.25 volts.
- Power consumption is relatively low compared to more modern technologies.
Applications:
- The 74LS244 is commonly used in digital systems for bus buffering, data line driving, and signal isolation.
- It finds applications in various electronic devices and projects where multiple components need to communicate with each other.
Compatibility:
- The 74LS244 is compatible with other TTL devices, making it easy to integrate into existing digital circuits that use TTL logic.

It’s important to note that the 74LS series, including the 74LS244, is an older technology. While it may still be used in some applications, more modern families of ICs like CMOS (Complementary Metal-Oxide-Semiconductor) and other advanced technologies are now prevalent in digital design due to their improved performance and lower power consumption.