MM74HCT244SJ

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

MM74HCT244SJ Application Field and Working Principle

The MM74HCT244SJ is a high-speed, low-power quad buffer BiCMOS (Bipolar & CMOS) logic integrated circuit used mainly in logic-level conversions and signal buffering. It is designed to provide up to 14 Mbps data transmission in 3.3V environment, and its 8-bit configuration is fully compatible with the 74HCT logic families.

The MM74HCT244SJ is categorized under Logic - Buffers, Drivers, Receivers, Transceivers. It has two different types of inputs: a standard input (e.g. TTL logic) and a high impedance input. The outputs are standard logic outputs (e.g. TTL logic) with an active low outputs.

Application Fields

The MM74HCT244SJ can be used in multiple applications fields that are listed below.

• Logic Level Conversions: The chip can be used for level conversions between 3V and 5V logic signals. The chip offers fully compatible logic families and a reduced requirement of external components needed for the design of logic level conversions.
• Data Transmission: Due to its high speed and low power requirement, the chip can be used in data transmission systems, with an upper data rate limit of 14 Mbps.
• Signal Buffering: The chip can be used as a buffer for low speed devices and can drive up to 15 TTL loads.

Working Principle

The MM74HCT244SJ is comprised of eight independent, non-inverting buffers. It uses the standard BiCMOS process and its dual supply voltage ranges from 4.75V - 5.25V and 2.0V - 3.6V. The chip has two different types of inputs: CMOS for standard input and TTL for high impedance (HIGH-Z) input. The chip offers 3.8V IOL (Output Low Voltage) and 5.2V IOH (Output High Voltage). The chip also offers a propagation delay of 38ns at +3.3V and 28ns at +5V, with rise/fall times of 8/4ns at +3.3V and 10/4ns at +5V.

The MM74HCT244SJ is designed to have three modes of operation: static, inverting, and non-inverting. In static mode, the output of the chip is wired to the input voltage and any change in the input voltage will be reflected in the output. The inverting mode takes the complement of the input voltage and produces the inverse on the output. Finally, the non-inverting mode will take the input voltage and just mirror it on the output.

The MM74HCT244SJ chip is capable of using the standard network interfaces such as RS-232, USB and Ethernet. Furthermore, it can also be used in automotive applications such as radio control systems, diagnostic systems, communication controlling systems and data transmission systems. The chip\'s low power consumption, fast speed, and logic level conversions make it a valuable choice for these applications.

Conclusion

The MM74HCT244SJ is a high-speed, low-power quad buffer BiCMOS logic integrated circuit and it is categorized under Logic - Buffers, Drivers, Receivers, Transceivers. It has two different types of inputs and provides an active low output. The MM74HCT244SJ can be used for logic level conversions, data transmission, and signal buffering. Lastly, the chip is capable of using different network interfaces such as USB and Ethernet and is ideal for automotive applications.

The specific data is subject to PDF, and the above content is for reference