
Allicdata Part #: | SN74AS373DW-ND |
Manufacturer Part#: |
SN74AS373DW |
Price: | $ 2.23 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Texas Instruments |
Short Description: | IC LATCH TRANSP OCT D 3ST 20SOIC |
More Detail: | D-Type Transparent Latch 1 Channel 8:8 IC Tri-Stat... |
DataSheet: | ![]() |
Quantity: | 1000 |
175 +: | $ 2.02950 |
Series: | 74AS |
Packaging: | Tube |
Part Status: | Active |
Logic Type: | D-Type Transparent Latch |
Circuit: | 8:8 |
Output Type: | Tri-State |
Voltage - Supply: | 4.5 V ~ 5.5 V |
Independent Circuits: | 1 |
Delay Time - Propagation: | 6ns |
Current - Output High, Low: | 15mA, 48mA |
Operating Temperature: | 0°C ~ 70°C |
Mounting Type: | Surface Mount |
Package / Case: | 20-SOIC (0.295", 7.50mm Width) |
Supplier Device Package: | 20-SOIC |
Base Part Number: | 74AS373 |
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A latch is a temporary storage device used in digital circuits to store one bit of data. The SN74AS373DW is a latch designed by Texas Instruments, made using open-drain technology. This device is based on the 3-state design, meaning it can be in the low, high, or disabled states, and can be used for data or address latching.
The SN74AS373DW is primarily used in address and data latching applications, where it can be used to interface between a microcontroller and a memory or other external device. By latching the data, the microcontroller can temporarily store the values while other operations occur. This can help reduce system costs and improve performance. The SN74AS373DW also provides a 3-state output, meaning it can be used to enable or disable output signal levels on the device\'s output pins.
The SN74AS373DW features an asynchronous active-low enable which is used to enable the output of the latch. When the enable signal is low, the output is enabled, and when it is high, the output is disabled. This allows the device to be used to control multiple external devices using a single enable signal. In addition, the device also features an active-low enable signal, which is used to enable the address bus or data bus for a single cycle. This signal must be enabled for the device to operate correctly.
The SN74AS373DW also utilizes dual-rail logic to provide the data input. This is done by connecting the data inputs to opposite rails of the power supply. When the data inputs are at the same voltage, the device will latch the data; when they are at different voltages, the device will not latch the data. The data is then transferred to the output latch. The device also supports both bus and single-bit latching.
In terms of power consumption, the SN74AS373DW is relatively efficient. The device only consumes 5 mA of current when active or 5 nA when in the disabled state. This helps to reduce power consumption and also to improve system response times. In addition, the device is designed to operate from a 2.7V to 5.5V supply voltage range, making it compatible with a variety of power sources.
Overall, the SN74AS373DW is an ideal device for address and data latching applications, where the device can be used to quickly and safely store one bit of data. It features low power consumption and a wide operating voltage range, making it a cost-effective choice for many applications. The device can also be used to control multiple external devices, providing further flexibility. While the device may be complex, understanding the basics of its operation and features can help utilize it effectively in a variety of systems.
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