SN74ALS994DW Integrated Circuits (ICs)

Series:	74ALS
Packaging:	Tube
Part Status:	Obsolete
Logic Type:	D-Type Transparent Latch
Circuit:	10:10
Output Type:	Tri-State
Voltage - Supply:	4.5 V ~ 5.5 V
Independent Circuits:	1
Delay Time - Propagation:	6ns
Current - Output High, Low:	400µA, 8mA
Operating Temperature:	0°C ~ 70°C
Mounting Type:	Surface Mount
Package / Case:	24-SOIC (0.295", 7.50mm Width)
Supplier Device Package:	24-SOIC
Base Part Number:	74ALS994

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The SN74ALS994DW is an ingenious logic-latches device that combines the power of the popular 74ALS logic family with the convenience of a D-type latch that is capable of controlling up to 16 bits of data. With its ability to output either rising or falling data on each clock cycle, this versatile device is a great choice for many applications in the logic family. The SN74ALS994DW is designed to operate from a single +5V power supply and is made with ‘zero’ power dissipation for low power applications. For operation in a ‘flexible’ environment, the device accepts both 5V TTL and CMOS compatible inputs. In addition, the device includes a self-clocking mechanism that can be used with either rising or falling edge clock signals. It also includes an output-enable feature, allowing the user to prevent or force a logic-low data output conforming to the data at the input even in the absence of a clock.The \'994DW works on the principle of storing data and releasing it when requested. This is achieved by a series of transparent latches which allow data to enter and remain in the register until it is required to be released. The output data on each latch can then be asynchronously defined as either a rising or falling output depending on the setting of the associated latch control bits. The \'994DW features a fully asynchronous input buffer which allows the direct inputs to be interfaced with the device without the need for additional external components. It also features a high-speed output stage, making it ideal for applications where high speed and low power is required. The device also features high noise immunity and an improved noise margin when operating at high frequencies.The device is particularly useful in stored data applications, such as digital bus controllers, memory controllers, and digital signal controllers. It can also be used in large scale multiplexer applications, allowing multiple bits of data to be easily transmitted through a single output. Additionally, the \'994DW can be used in various logic applications, such as combinational logic, state machines, and JK-type flip-flops. Finally, it can be used to implement MAN and FAN codes, making it great for decoding and encoding applications.Overall, the SN 74ALS994DW provides a powerful combination of versatility and capability in one package. Its wide range of features makes it an ideal choice for many logic-latches applications. With its low power consumption, high-speed output stage, and the ability to interface directly with a variety of input signals, the device is a great choice for applications requiring data storage and control.

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