CD74HCT257EG4 Allicdata Electronics
Allicdata Part #:

CD74HCT257EG4-ND

Manufacturer Part#:

CD74HCT257EG4

Price: $ 0.25
Product Category:

Integrated Circuits (ICs)

Manufacturer: Texas Instruments
Short Description: IC QUAD 2 INPUT MUX 3ST 16DIP
More Detail: Multiplexer 4 x 2:1 16-PDIP
DataSheet: CD74HCT257EG4 datasheetCD74HCT257EG4 Datasheet/PDF
Quantity: 1000
1175 +: $ 0.21773
Stock 1000Can Ship Immediately
$ 0.25
Specifications
Series: 74HCT
Packaging: Tube 
Part Status: Active
Type: Multiplexer
Circuit: 4 x 2:1
Independent Circuits: 1
Current - Output High, Low: 6mA, 6mA
Voltage Supply Source: Single Supply
Voltage - Supply: 4.5 V ~ 5.5 V
Operating Temperature: -55°C ~ 125°C
Mounting Type: Through Hole
Package / Case: 16-DIP (0.300", 7.62mm)
Supplier Device Package: 16-PDIP
Base Part Number: 74HCT257
Description

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

CD74HCT257EG4 is a logic signal encoding unit from Texas Instruments. It is wide used in various of application fields as a part of digital circuits.

CD74HCT257EG4 is categorized as logic signal switches, multiplexers, and decoders. This logic multiplexer has 128 bytes of input data but just 8 bytes of output data. It can select the desired data from thousands of input data and transfer it to a specific output.

As a multiplexer, CD74HCT257EG4 can select one of 2^n address data and convert it to an 8 bit output. It is used in memory mapping, data communications and audio video controller.

The working principle of CD74HCT257EG4 is quite simple. By applying logic signals to its select inputs, the output will be set to the logic high level at the same time. The logic signal is varied through the use of two control signals. A low signal will switch off the circuit for a fractional second then switch back on again. This switching action of the control lines acts as a strobe to capture the data. The data input is enabled only when the strobe is high and the data is loaded into the output register.

The signal encoding unit consists of eight 3-state buffers, each having three high performance inputs. These buffers provide high level outputs, allowing multiple devices to be connected across buses. Each buffer is enabled separately thus allowing multiplexing. The buffers have TTL input and output compatibility.

CD74HCT257EG4 is used to achieve MP3 decoding, digital decoding, and data transmission functions. In MP3 decoding, CD74HCT257EG4 is responsible for transmission of data to CD-ROM or hard disk. For digital decoding, the logic signal level processor can reconstruct a CD-Rom signal into a PCM stream for decoding. It is also used for data transmission such as networking, DVI and modem.

In conclusion, CD74HCT257EG4 is a logic signal encoding unit categorized as logic signal switches, multiplexers, and decoders. It can select one of 2^n address data and convert it to an 8 bit output. It is used for multiplexing, MP3 decoding, digital decoding and data transmission.

The specific data is subject to PDF, and the above content is for reference

Related Products
Search Part number : "CD74" Included word is 40
Part Number Manufacturer Price Quantity Description
CD74HC4046APWR Texas Instru... 0.16 $ 20000 IC PLL W/VCO 16-TSSOP
CD74HC4046AM96 Texas Instru... -- 5000 IC PLL W/VCO HS 16-SOIC
CD74HC4046AE Texas Instru... -- 3808 IC PLL W/VCO 16-DIP
CD74HCT4046AE Texas Instru... 0.44 $ 1682 IC PLL W/VCO HS 16-DIP
CD74HC4046AM Texas Instru... -- 2377 IC PLL W/VCO 16-SOIC
CD74HC4046AM96E4 Texas Instru... 0.15 $ 1000 IC PLL W/VCO 16-SOIC
CD74HC4046AM96G4 Texas Instru... 0.15 $ 1000 IC PLL W/VCO 16-SOIC
CD74HCT4046AM96E4 Texas Instru... 0.15 $ 1000 IC PLL W/VCO HS 16-SOIC
CD74HCT4046AM96G4 Texas Instru... 0.15 $ 1000 IC PLL W/VCO HS 16-SOIC
CD74HC4046APWRE4 Texas Instru... 0.16 $ 1000 IC PLL W/VCO 16-TSSOP
CD74HC4046APWRG4 Texas Instru... 0.16 $ 1000 IC PLL W/VCO 16-TSSOP
CD74HC4046ANSRE4 Texas Instru... 0.18 $ 1000 IC PLL W/VCO 16SO
CD74HC4046AMTE4 Texas Instru... 0.18 $ 1000 IC PLL W/VCO 16-SOIC
CD74HCT4046AME4 Texas Instru... 0.18 $ 1000 IC PLL W/VCO HS 16-SOIC
CD74HCT4046AMG4 Texas Instru... 0.18 $ 1000 IC PLL W/VCO HS 16-SOIC
CD74HC4046AEG4 Texas Instru... 0.19 $ 1000 IC PLL W/VCO 16-DIP
CD74HCT4046AEG4 Texas Instru... 0.19 $ 1000 IC PLL W/VCO HS 16-DIP
CD74HC4046AMG4 Texas Instru... 0.21 $ 1000 IC PLL W/VCO 16-SOIC
CD74HCT4046AMT Texas Instru... 0.33 $ 1000 IC PLL W/VCO HS 16-SOIC
CD74HC7046AM96 Texas Instru... -- 1000 IC PLL W/VCO/LOCK DETECT ...
CD74ACT297M96 Texas Instru... 0.96 $ 1000 IC DGTL PHASE-LOCKED LOOP...
CD74HC7046AMT Texas Instru... 1.29 $ 1250 IC PLL W/VCO/LOCK DETECT ...
CD74HC7046AM Texas Instru... -- 3318 IC PLL W/VCO/LOCK DETECT ...
CD74HCT297E Texas Instru... 2.51 $ 119 IC DIGITAL PLL 16-DIP
CD74HCT4046AM96 Texas Instru... -- 1000 IC PLL W/VCO HS 16-SOIC
CD74HCT7046AM96 Texas Instru... -- 1000 IC PLL W/VCO/LOCK DETECT ...
CD74HCT7046AM Texas Instru... 2.14 $ 2091 IC PLL W/VCO/LOCK DETECT ...
CD74HC297E Texas Instru... -- 703 IC DIGITAL PLL 16-DIP
CD74HC4046APW Texas Instru... 0.49 $ 1227 IC PLL W/VCO 16-TSSOP
CD74HC4046APWT Texas Instru... -- 1000 IC PLL W/VCO 16-SSOP
CD74HCT7046AE Texas Instru... 1.97 $ 269 IC PLL W/VCO/LOCK DETECT ...
CD74HC4046ANSR Texas Instru... -- 1000 IC PLL W/VCO 16SO
CD74ACT297M Texas Instru... -- 104 IC DIG PHASE-LOCKED LOOP ...
CD74HCT4046AM Texas Instru... -- 772 IC PLL W/VCO 16-SOIC
CD74HC7046AE Texas Instru... -- 218 IC PLL W/VCO/LOCK DETECT ...
CD74HC4046AMT Texas Instru... 0.25 $ 750 IC PLL W/VCO 16-SOIC
CD74HCT7046AEG4 Texas Instru... 1.37 $ 1000 IC PLL W/VCO/LOCK DETECT ...
CD74HC7046AMG4 Texas Instru... 1.38 $ 1000 IC PLL W/VCO/LOCK DETECT ...
CD74HCT7046AMT Texas Instru... 1.43 $ 1000 IC PLL W/VCO/LOCK DETECT ...
CD74HCT7046AMG4 Texas Instru... 1.58 $ 1000 IC PLL W/VCO/LOCK DETECT ...
Latest Products
TCA9548ARGERQ1

Bus Switch ICs - Various Automotive 8-Ch...

TCA9548ARGERQ1 Allicdata Electronics
IDT74CBTLV3126QG8

IC BUS SW QUAD LV 16-QSOPBus Switch 1 x ...

IDT74CBTLV3126QG8 Allicdata Electronics
SN74ALS857DWRG4

IC MULTIPLEXER SINGLE 24SOICMultiplexer ...

SN74ALS857DWRG4 Allicdata Electronics
CD4514BEG4

IC 4BIT LATCH/4:16 DECODR 24-DIPDecoder/...

CD4514BEG4 Allicdata Electronics
SY100E164JZ-TR

IC MULTIPLEXER 16:1 28-PLCCMultiplexer 1...

SY100E164JZ-TR Allicdata Electronics
SN74CBT6800CDBQRG4

IC SWITCH BUS FET 10BIT 24-QSOPBus Switc...

SN74CBT6800CDBQRG4 Allicdata Electronics