Basic Buffer and Drive Functions
Signal Amplification and Buffering: The chip has eight buffer/driver channels, each with an input and an output port1. The input port can receive logic level input signals, and the output port can output the same logic level as the input signal, which can amplify and buffer the input signal to ensure signal quality and transmission stability1.
Tri-State Output Function
Output State Control: It has a tri-state output function and can control the output to be in a high-impedance state through the control pin1. When the control signal is high, the output buffer is in the driving state and outputs the processed signal; when the control signal is low, the output buffer is in the high-impedance state and the output port is in a high-impedance state1. This function allows multiple output ports to be shared, which is very useful in bus systems and other applications that need to control the connection and disconnection of multiple devices1.
ESD Protection
Protection Against Electrostatic Discharge: Both the input and output ports have ESD protection, which can effectively prevent the chip from being damaged by electrostatic discharge1. This makes the chip more reliable and stable in various working environments and reduces the risk of chip failure caused by electrostatic interference.
Voltage and Temperature Characteristics
Wide Voltage Range: The 74HC244D can work in a circuit with a supply voltage range of 2V to 6V, which makes it suitable for various power supply systems1.
Wide Temperature Range: It has an operating temperature range of -40°C to 85°C, which can meet the requirements of different working environments13.
Packaging and Compatibility
Multiple Packaging Forms: It is packaged in DIP-20 (dual in-line) and SOIC-20 (small-outline surface-mount) forms, which can be easily connected and assembled with other electronic components1.
RoHS Compliant: The chip complies with the RoHS standard, is lead-free and environmentally friendly, and meets modern environmental requirements1
