74ACT1284MTR

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The 74ACT1284MTR is a member of the advanced low-power Schottky (ALS) logic family. The 74ACT1284MTR is designed with an open-drain output structure to reduce power consumption in peak current and maintain low static power consumption. It reduces subthreshold leakage current by using advanced assembly process design, mobility enhancement, and circuit level optimization.

The 74ACT1284MTR is a logic device primarily used for logic interfacing in applications such as data interfaces, communications infrastructure, baseband signal processing and others. As an example, in data interfaces, it is used for demultiplexing, shift register operations, logic multiplexing, and byte-wide data transfer operations. In baseband signal processing, the 74ACT1284MTR is mainly used for data buses, address buses, control buses, and memory control buses. This device is also useful in other high-speed digital networks and communication applications.

The 74ACT1284MTR consists of four 4-bit 4-port registers, each of which has a single 3-wire data interface. Each 4-bit register consists of two 4-bit packages, each with its own data interface. The 4-bit register port can be connected to three external wires: one for the data input, one for the data output, and one for the control signal. The inputs and outputs of the 74ACT1284MTR are logically related, allowing easy syncing of multiple I/O signals from one device to another. The 4-bit register port is also capable of accepting multiple data inputs, allowing for communication between different devices without the additional cost of a serial connection.

The 74ACT1284MTR also incorporates an open-drain structure, meaning it does not have an output directly connected to the power supply. Instead, the drain of the device is connected to the output, which allows it to pull the output signal to ground by simply providing a low logic level input. This open-drain structure makes it especially suitable for applications that require low quiescent power and low peak currents.

In terms of timing characteristics, the 74ACT1284MTR has a propagation delay that ranges from 25 ns to 40 ns in the range of 3.3 V to 5 V, at temperatures ranging from 25°C to 85°C. The propagation delay is adjustable in digital values and can be controlled by changing the control signal (not on-chip).The 74ACT1284MTR also has a range of selectable output drive capability including 5 mA, 10 mA, and 15 mA.

The 74ACT1284MTR logic device operates in the CMOS logic family. This means that it does not have an internal power supply and runs at the logic levels of its input. It can be powered from a wide range of power supplies, from 2.7V to 5.5V. It is a typical Schottky device, meaning that it has an in-built Schottky diode at its output, which prevents reverse-current flow and improves the performance of its output. Its interface is TTL compatible, which allows it to be used with various logic-level devices.

In summary, the 74ACT1284MTR is a logic device that can be used for logic interfacing, data interfaces, communications, and baseband signal processing applications. It is a low-power, low-voltage Schottky device that contains a single 3-wire data interface and four 4-bit 4-port registers. It has an adjustable propagation delay and adjustable output drive capability, as well as an in-built Schottky diode at the output. It is powered from a wide range of power supplies and is TTL compatible, allowing for easy communication with other logic-level devices.

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