74ACTQ240SJ

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74ACTQ240SJ is a family of monolithic complementary bipolar circuits that provide high-speed logic buffering for memory interface and bus applications. It belongs to the category of logic buffers, drivers, receivers, transceivers offering users a wide range of performance and functions to support various asynchronous and synchronous interfaces. With its high-speed CMOS construction and low power consumption, 74ACTQ240SJ is suitable for applications that require low power consumption at higher clock frequencies.

The 74ACTQ240SJ family consists of a set of high-speed emitter follower-like outputs that are designed to perform bus-oriented logic operations. The standard package of the device contains 16 transmitters with output capability of up to 3.6V. Other devices are packaged in packages of 8 with output capabilities of up to 7V. The low-power, high-speed performance of the device makes it suitable for use in applications that require low power consumption at higher clock frequencies.

The 74ACTQ240SJ implements the concept of buffering by driving multiple loads from one driver output and receiving inputs from other driver or receivers. This allows for low static power consumption, low-pin count and improved system performance. The device is capable of driving several logic levels (up to seven), including TTL, 3.3V, 5V and 12V. It also offers flexible input buffers with single-ended and differential inputs and low-power control circuitry to support low-power operation using standard CMOS technology.

The 74ACTQ240SJ can also be used as a differential transceiver for data communications and signaling purposes. It is capable of transmitting and receiving data asynchronously across multiple channels with data rates up to 400 Mbps. This capability is useful for supporting high-speed serial communications applications. The device is also capable of providing programmable differential threshold and hysteresis values for noise immunity, as well as for motion detection applications.

The 74ACTQ240SJ is particularly suitable for use in applications such as distributed switching and crosspoint switching, memory interface, memory switching, and serial communications. Its ability to provide low-power operation, high-speed performance, and low pin-count makes it an ideal choice for many applications. By using different combinations of output drivers and receivers, users can configure the device to meet their specific requirements.

The working principle of the device is based on its buffering, transmitting, and receiving capabilities. When an input signal is received, the input buffer amplifier amplifies it and supplies it to the driver. The driver then drives the data signal onto the outputs. The receiver receives the data signal and compares it to the differential threshold voltage. If the signal is above the threshold voltage, it is considered valid and the resultant logic level is retained. When the logic level is being transmitted, the transmitter drives the signal onto the output.

In addition, 74ACTQ240SJ supports low-power operation by providing a low-input current design. By lowering the input current, the device can reduce system power consumption significantly. This low-power design is particularly useful when multiple systems are communicating with each other, such as in distributed switching.

The 74ACTQ240SJ is a popular choice for logic buffering, transmitting, and receiving applications due to its high-speed performance and low power consumption. Its ability to provide low-power operation and multiple logic levels makes it an ideal choice for many applications. By using its buffering and transmitting/receiving capabilities, the device can be used to provide high-speed serial communications and low-power operation.

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