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74AC257
Quad 2-Input Multiplexer with 3-STATE Outputs

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Contents

•General Description
•Features
•Product Status/Pricing/Packaging
•Order Samples
•Models
•Qualification Support

General Description

The AC/ACT257 is a quad 2-input multiplexer with 3-STATE outputs. Four bits of data from two sources can be selected using a Common Data Select input. The four outputs present the selected data in true (noninverted) form. The outputs may be switched to a high impedance state by placing a logic HIGH on the common Output Enable (OE#) input, allowing the outputs to interface directly with bus-oriented systems.

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Features

  • ICC and IOZ reduced by 50%
  • Multiplexer expansion by tying outputs together
  • Noninverting 3-STATE outputs
  • Outputs source/sink 24 mA
  • ACT257 has TTL-compatible inputs

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Datasheet
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Product Status/Pricing/Packaging      buy now

ProductProduct statusEco StatusPricing*Package typeLeadsPacking methodPackage DrawingPackage Marking Convention**
74AC257MTCFull ProductionRoHS Compliant$0.211TSSOP16RAIL PDFLine 1: $Y (Fairchild logo)
&Z (Asm. Plant Code)
&2 (2-Digit Date Code)
&K Line 2: AC257
74AC257MTCXFull ProductionRoHS Compliant$0.211TSSOP16TAPE REEL PDFLine 1: $Y (Fairchild logo)
&Z (Asm. Plant Code)
&2 (2-Digit Date Code)
&K Line 2: AC257
74AC257PCFull ProductionRoHS Compliant$0.287DIP16RAIL PDFLine 1: $Y (Fairchild logo)
&Z (Asm. Plant Code)
&4 (4-Digit Date Code)
&K Line 2: 74AC257PC
74AC257SCFull ProductionRoHS Compliant$0.211SOIC16RAIL PDFLine 1: $Y (Fairchild logo)
&Z (Asm. Plant Code)
&2 (2-Digit Date Code)
&K Line 2: 74AC257
74AC257SCXFull ProductionRoHS Compliant$0.211SOIC16TAPE REEL PDFLine 1: $Y (Fairchild logo)
&Z (Asm. Plant Code)
&2 (2-Digit Date Code)
&K Line 2: 74AC257
74AC257SJFull ProductionRoHS Compliant$0.287SOP16RAIL PDFLine 1: $Y (Fairchild logo)
&Z (Asm. Plant Code)
&2 (2-Digit Date Code)
&K Line 2: 74AC257
74AC257SJXFull ProductionRoHS Compliant$0.287SOP16TAPE REEL PDFLine 1: $Y (Fairchild logo)
&Z (Asm. Plant Code)
&2 (2-Digit Date Code)
&K Line 2: 74AC257
* Fairchild 1,000 piece Budgetary Pricing
** A sample button will appear if the part is available through Fairchild's on-line samples program. If there is no sample button, please contact a Fairchild distributor to obtain samples

Package marking information for product 74AC257 is available. Click here for more information .

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Models

Package & leadsConditionTemperature rangeVcc rangeSoftware versionRevision date
IBIS
TSSOP-16All-40°C to 85°C4.5V to 5.5V2.1Aug 18, 1998

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Qualification Support

Click on a product for detailed qualification data

Product
74AC257MTC
74AC257MTCX
74AC257PC
74AC257SC
74AC257SCX
74AC257SJ
74AC257SJX

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