Fairchild Semiconductor
NC7WB3125
2-Bit Low Power Bus Switch

General Description

The NC7WB3125 is a 2-bit ultra high-speed CMOS FET bus switch with TTL-compatible active LOW control inputs. The low On Resistance of the switch allows inputs to be connected to outputs with minimal propagation delay and without generating additional ground bounce noise. The device is organized as a 2-bit switch with independent bus enable (OE#) controls. When OE# is LOW, the switch is ON and Port A is connected to Port B. When OE# is HIGH, the switch is OPEN and a high-impedance state exists between the two ports. Control inputs tolerate voltages up to 5.5V independent of VCC.

Features

  • Space saving US8 surface mount package
  • MicroPak™ Pb-Free leadless package
  • Typical 3ohm switch resistance at 5.0V VCC
  • Minimal propagation delay through the switch
  • Power down high impedance input/output
  • Zero bounce in flow through mode
  • TTL compatible active LOW control inputs
  • Control inputs are overvoltage tolerant
  • Bus switch replacement for Logic x125 part

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Product Status/Pricing/Packaging      buy now

ProductProduct statusEco StatusPricing*Package typeLeadsPacking methodPackage DrawingPackage Marking Convention**
NC7WB3125K8XFull ProductionGreen$0.186US88TAPE REEL PDFLine 1: &2 (2-Digit Date Code)
&K Line 2: WB25 Line 3: $Y&Z
NC7WB3125L8XPreliminaryRoHS CompliantN/AMicroPak8TAPE REEL PDFLine 1: T4
* 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 NC7WB3125 is available. Click here for more information .

Models

Package & leadsConditionTemperature rangeVcc rangeSoftware versionRevision date
HSPICE
US8-8Slow-40°C to 85°C4V to 5.5V99.4Feb 21, 2001
Fast-40°C to 85°C4V to 5.5V99.4Feb 21, 2001
Typical-40°C to 85°C4V to 5.5V99.4Feb 21, 2001

Application Notes

MS-503: Family Characteristics TinyLogic HS/HST and UHS Series (142 K) Sep 05, 2008
MS-549: Fairchild Switch Product Feature Matrix (14 K) Sep 05, 2008
 


Qualification Support

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Product
NC7WB3125K8X
NC7WB3125L8X


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