Fairchild Semiconductor
74LCX16821
Low Voltage 20-Bit D-Type Flip-Flops with 5V Tolerant Inputs and Outputs

General Description

The LCX16821 contains twenty non-inverting D-type flip-flops with 3-STATE outputs and is intended for bus oriented applications. The device is designed for low voltage (2.5V or 3.3V) VCC applications with capability of interfacing to a 5V signal environment.

The LCX16821 is fabricated with an advanced CMOS technology to achieve high speed operation while maintaining CMOS low power dissipation.

Features

  • 5V tolerant inputs and outputs
  • 2.3V-3.6V VCC specifications provided
  • 6.2 ns tPD max (VCC = 3.3V), 20 µA ICC max
  • Power down high impedance inputs and outputs
  • Supports live insertion/withdrawal (Note 1)
  • ±24 mA output drive (VCC = 3.0V)
  • Implements patented noise/EMI reduction circuitry
  • Latch-up performance exceeds 500 mA
  • ESD performance:

    Human body model > 2000V

    Machine model > 200V

To ensure the high-impedance state during power up or down, OE# should be tied to VCC through a pull-up resistor: the minimum value or the resistor is determined by the current-sourcing capability of the driver.

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Product Status/Pricing/Packaging      buy now

ProductProduct statusEco StatusPricing*Package typeLeadsPacking methodPackage DrawingPackage Marking Convention**
74LCX16821MEAFull ProductionRoHS Compliant$1.50SSOP56RAIL PDFLine 1: $Y (Fairchild logo)
&Z (Asm. Plant Code)
&2 (2-Digit Date Code)
&K Line 2: LCX16821
74LCX16821MEAXFull ProductionRoHS Compliant$1.50SSOP56TAPE REEL PDFLine 1: $Y (Fairchild logo)
&Z (Asm. Plant Code)
&2 (2-Digit Date Code)
&K Line 2: LCX16821
74LCX16821MTDFull ProductionRoHS Compliant$1.38TSSOP56RAIL PDFLine 1: $Y (Fairchild logo)
&Z (Asm. Plant Code)
&2 (2-Digit Date Code)
&K Line 2: LCX16821
74LCX16821MTDXFull ProductionRoHS Compliant$1.38TSSOP56TAPE REEL PDFLine 1: $Y (Fairchild logo)
&Z (Asm. Plant Code)
&2 (2-Digit Date Code)
&K Line 2: LCX16821
* 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 74LCX16821 is available. Click here for more information .

Models

Package & leadsConditionTemperature rangeVcc rangeSoftware versionRevision date
HSPICE
SSOP-56Typical25°C to 150°C2V to 3.6V97.4Dec 1, 1998
Slow25°C to 150°C2V to 3.6V97.4Dec 1, 1998
Fast25°C to 150°C2V to 3.6V97.4Dec 1, 1998
IBIS
SSOP-56All-40°C to 85°C3V to 3.6V2.1Jan 27, 1998
TSSOP-56All-40°C to 85°C3V to 3.6V2.1Jan 27, 1998


Qualification Support

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Product
74LCX16821MEA
74LCX16821MEAX
74LCX16821MTD
74LCX16821MTDX


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