DS90CP22MX-8/NOPB vs 74HC138D-Q100HL
| Part Number |
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| Category | Logic - Signal Switches, Multiplexers, Decoders | Logic - Signal Switches, Multiplexers, Decoders |
| Manufacturer | National Semiconductor | Nexperia USA Inc. |
| Description | IC CROSSPOINT SW 1 X 2:2 16SOIC | IC DECODER/DEMUX 1 X 3:8 16SO |
| Package | Bulk | Tape & Reel (TR) |
| Series | - | Automotive, AEC-Q100, 74HC |
| Type | Crosspoint Switch | Decoder/Demultiplexer |
| Voltage - Supply | 3V ~ 3.6V | 2V ~ 6V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 16-SOIC (0.154\", 3.90mm Width) | 16-SOIC (0.154\", 3.90mm Width) |
| Supplier Device Package | 16-SOIC | 16-SO |
| Voltage Supply Source | Single Supply | Single Supply |
| Circuit | 1 x 2:2 | 1 x 3:8 |
| Current - Output High, Low | - | 5.2mA, 5.2mA |
| Independent Circuits | 1 | 1 |
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1. What are the four types of switches?
Single-pole single-throw (SPST) - The most basic switch, with only one input and one output, can be turned on or off.
Single-pole double-throw (SPDT) - There is a common terminal, a normally closed terminal, and a normally open terminal, which can be used to select one of two different paths.
Double-pole single-throw (DPST) - There are two independent single-pole single-throw switches, which operate in conjunction and can control two lines at the same time.
Double Pole Double Throw (DPDT) - There are two independent sets of single pole double throw switches, each with its own common, normally closed and normally open terminals, which can control two lines at the same time, and each line has two state selections. -
2. What are multiplexers used for?
A multiplexer is a device that can select one of multiple input signals and direct it to a single output. In digital systems, multiplexers allow data streams to share the same channel, saving space and cost.
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3. What are some examples of decoders?
BCD to 7-segment decoder
Binary to Octal Decoder
Address Decoder in memory systems -
4. What is the purpose of a decoder in a combinational circuit?
The purpose of decoders in combinational circuits is mainly to convert data or to implement specific functions as part of logic circuits.
