74AC138SJX

Series:	74AC
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Type:	Decoder/Demultiplexer
Circuit:	1 x 3:8
Independent Circuits:	1
Current - Output High, Low:	24mA, 24mA
Voltage Supply Source:	Single Supply
Voltage - Supply:	2 V ~ 6 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	16-SOIC (0.209", 5.30mm Width)
Supplier Device Package:	16-SOP
Base Part Number:	74AC138

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74AC138SJX is a logic signal switch, multiplexer, and decoder manufactured by Texas Instruments. It is a 3-to-8 line decoder/demultiplexer with three active-low address inputs (A0-A2) and one active-low enable input (EN). It has eight active-high outputs (O0-O7) and is fabricated using bipolar technology and packaged in the standard unipolar outline (BLAA) SO16 package.The applications of 74AC138SJX vary greatly, ranging from small-scale general logic to more complex, high-speed digital electronic systems. This can include memory and programmable logic devices, as well as data bus decoding and interfacing. 74AC138SJX can be used in industrial, military, and aerospace systems, as well as in automotive, computer, communications and consumer electronics systems.The working principle of 74AC138SJX is fairly simple. All address inputs are connected to the external logic to provide the address codes. The enable input provides the necessary conditions for selecting either one or multiple outputs from the group. When the enable input is low, the decoder is disabled and all the outputs are inactive. When the enable input is high, the address inputs select one output. Each address input level (low or high) determines which output is activated. If the enable input is in the low state, no address selection can be made and all outputs become active low.The output drive capability allows for this logic IC to be used with both TTL and CMOS input/output logic families. It offers low current consumption and idle state power consumption. With a propagation delay of 5ns typical at 10V, it is ideal for high speed applications.In conclusion, the 74AC138SJX is an ideal choice for a wide range of applications, including memory and programmable logic devices, as well as data bus decoding, interfacing, and more. With its low current consumption, idle state power consumption, and high speed operation, the 74AC138SJX offers a cost-effective and reliable signal switch, multiplexer, and decoder.

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