SN74AC373PWR Integrated Circuits (ICs)

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

SN74AC373PWR is a type of logic – Latches. Generally, Latches are a type of flip-flop with asynchronous control inputs for operations. In a latch, a signal is sent through one input, then the output reflects this signal without the need for a clock pulse. As a result, asynchronous control signals may access input pins to write or reset the internal state of a latch and its outputs. A latch output will always be in the same state as its inputs, even with power-down conditions, so it is suitable for applications where the information must be retained without interruption. This is the reason why latches are important in logic-circuitry.

SN74AC373PWR is one of such logic - Latch components. The SN74AC373PWR consists of two 8-bit latch circuits that are designed to provide floating bus hold and bus hold selector. With two 8-bit latch circuits and floating bus hold capability, it allows data to be transferred quickly and efficiently during a write operation and stored in the latch during a read operation. The SN74AC373PWR also provides an open-drain bus hold selector to improve system performance by bypassing the latch during a read operation. Furthermore, the SN74AC373PWR offers wide supply voltage ranges of 2.7V to 5.5V, making it compatible with many logic families.

The pins on SN74AC373PWR are located such that the Address/Data Buffer (A/B) play the role of input/output port to control the bus. The A/B pin also serves as an I/O port for the two 8-bit latches i.e. the latches can be used to control the data flow in and out of the port as required. The Bus Hold Selector (BH) is used to determine which of the two 8-bit latches is active. The BH is asserted when a write operation is in progress and it selects the active latch. The CLK pin is used to control the data through the Bus Hold Selector by providing a clock signal. The CS pin is the Chip Select that is used to control the data flow in and out of the port through the Address/Data Buffer.

The external resistor of SN74AC373PWR is connected to the BH pin to control the output voltage. Additionally, this resistor block is used to provide pull-up currents to the internal power supply. When the chip is powered off, the BH pin is held at VDD = 5.5V to ensure the Bus Hold selector is disabled. The output is then driven to the logic-low state in anticipation of the chip being powered on again in the future. The BH pin will then switch to the selected active latch, corresponding to the I/O settings of the A pin.

The SN74AC373PWR is designed to be versatile and tolerant to a variety of logic family such as bipolar, HC/HCT, AS, and AHC/AHCT and is able to operate at 2.7V to 5.5 V. This makes SN74AC373PWR suitable for a range of applications with varying power requirements. These include high-performance, low-power applications with low-cost microcontrollers, as well as communication interface equipment, memory, and digital signal processor design. Additionally, the SN74AC373PWR is also useful in video, audio, and imaging application builds.

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