SN74AHCT139PWRE4

Series:	74AHCT
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Decoder/Demultiplexer
Circuit:	1 x 2:4
Independent Circuits:	2
Current - Output High, Low:	8mA, 8mA
Voltage Supply Source:	Single Supply
Voltage - Supply:	4.5 V ~ 5.5 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	16-TSSOP (0.173", 4.40mm Width)
Supplier Device Package:	16-TSSOP
Base Part Number:	74AHCT139

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The SN74AHCT139PWRE4 is a logic switching device belonging to the family of logic - signal switches, multiplexers, and decoders. It is a high-speed, low-power four-channel demultiplexer/decoder used for identifying and routing signals. The chip can be used in a variety of applications from general switching operations to address decoding and voltage translation.The chip functions as a switch by providing data information from two-bit binary input sections A and B and connecting the corresponding output Y to the appropriate logic level. This can be used on a wide range of logic applications for high-speed switching of signals.The chip is powered by two supply voltage rails: the Vcc (positive) and the Vee (negative) with a bias level of Vcc/2. The Vcc and the Vee voltage ranges can be set between 2.7V to 6.25V. The chip also has an enable input ‘E’ which functions as an active high enable control and when inactive will place the output Y in a high impedance state.The device has a high-speed logic control with a propagation delay time of 6ns max at Vcc=5V and 4ns max at Vcc=3.3V. The threshold logic levels of the devices\' inputs are designed with a TTL compatible input range of 0.8V to 2V and an output low level of 0.5V max. The SN74AHCT139PWRE4 is ideal for use in high-speed, low-power applications. It can be used with CMOS and TTL logic respectively. The application of the device includes general switching operations, address decoding, motor control, logic blocking, logic decoding, bus buffer and timer control applications.In address decoding applications, the SN74AHCT139PWRE4 uses its four channels to reduce the multiplexed binary inputs to true-logic levels. This chip is also well-suited for use in memory, processor and controller designs.The device is also designed to tolerate voltages beyond the typical range of 0V to 5V due to its overload protection. This overload protection is used to keep the device from latching in an unwanted state when driven by an input established outside of the logic levels. The SN74AHCT139PWRE4 is also designed to be highly immune to noise and include protection circuitry against electrostatic discharge, making the device perfect for applications in a hostile environment. The device also has a big package design which makes it convenient for soldering and assembly. It is packaged in a 16-pin green thin shrink small outline package (TSSOP) with power dip leads for surface-mount applications.Overall, the SN74AHCT139PWRE4 is an ideal logic switching device for use in a wide array of applications. Its high-speed and low-power features make it suitable for use in high-speed switching and address decoding operations. Its wide range of features and robust design make it an ideal choice for applications in hostile environments.

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