SN74ALS240A-1DW

Series:	74ALS
Packaging:	Tube
Part Status:	Active
Logic Type:	Buffer, Inverting
Number of Elements:	2
Number of Bits per Element:	4
Input Type:	--
Output Type:	3-State
Current - Output High, Low:	15mA, 48mA
Voltage - Supply:	4.5 V ~ 5.5 V
Operating Temperature:	0°C ~ 70°C (TA)
Mounting Type:	Surface Mount
Package / Case:	20-SOIC (0.295", 7.50mm Width)
Supplier Device Package:	20-SOIC
Base Part Number:	74ALS240

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Logic - Buffers, Drivers, Receivers, TransceiversThe SN74ALS240A-1DW ICs are used for regenerative switching applications, and are designed for applications requiring wide-bandwidth, low-skew signals. The SN74ALS240A-1DW is a quad buffer/driver, with a single-ended output driver. It has an 8-bit tri-state output configuration, with each output buffer having a separate enable input.The SN74ALS240A-1DW buffers, drivers, receivers, and transceivers are used to drive logic gates, both digital and analog, such as logic gates and shift registers. They are also used as buffers that help ensure high data transfer rates, as well as smooth, consistent signal operation.The SN74ALS240A-1DW is used to implement digital logic operation in an efficient way. Generally, the SN74ALS240A-1DW is used for level shifting, i.e., the conversion of one logic level to another. It is capable of driving up to 8 outputs from one logic signal without the need for additional amplification or logic gates. The SN74ALS240A-1DW can also be used as an interface between two logic families (i.e. TTL to ECL).The SN74ALS240A-1DW contains four buffers, each buffer comprising of an input, output and an enable line. The enable line is used to enable or disable the particular buffer. When enabled, the corresponding output buffers the input signal and drives it to the output terminal; when disabled, the corresponding output drives the output to the "low" state.The SN74ALS240A-1DW is designed to work in applications where the input logic levels and output logic levels may be different. It can be used to interface two digital logic families with different logic levels, such as TTL (Transistor–Transistor Logic) and ECL (Emitter Coupled Logic). The SN74ALS240A-1DW also has the capability of driving up to 8 output lines from a single signal.The SN74ALS240A-1DW driver uses negative-edge-triggered flip-flops instead of the positive-edge-triggered flip-flops used in other buffers and drivers. This helps to ensure a more reliable timing performance. The SN74ALS240A-1DW is also capable of receiving data from multiple sources, including both fixed and programmable logic devices.In a nutshell, the SN74ALS240A-1DW buffers, drivers, receivers, and transceivers are ideal logic solutions for data transfer, level shifting and logic conversion. It is a reliable, voltage tolerant and multi-channel logic family, which is suitable for a wide variety of applications.

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