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MM74HC244
Octal 3-STATE Buffer

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Contents

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

General Description

The MM74HC244 is a non-inverting buffer and has two active low enables (1G and 2G); each enable independently controls 4 buffers. This device does not have Schmitt trigger inputs.

These 3-STATE buffers utilize advanced silicon-gate CMOS technology and are general purpose high speed non-inverting buffers. They possess high drive current outputs which enable high speed operation even when driving large bus capacitances. These circuits achieve speeds comparable to low power Schottky devices, while retaining the advantage of CMOS circuitry, i.e., high noise immunity, and low power consumption. All three devices have a fanout of 15 LS-TTL equivalent inputs.

All inputs are protected from damage due to static discharge by diodes to VCC and ground.

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Features

  • Typical propagation delay: 14 ns
  • 3-STATE outputs for connection to system buses
  • Wide power supply range: 2-6V
  • Low quiescent supply current: 80 µA
  • Output current: 6 mA

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Datasheet
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Product Status/Pricing/Packaging      buy now

ProductProduct statusEco StatusPricing*Package typeLeadsPacking methodPackage DrawingPackage Marking Convention**
MM74HC244MTCFull ProductionRoHS Compliant$0.189TSSOP20RAIL PDFLine 1: $Y (Fairchild logo)
&Z (Asm. Plant Code)
&2 (2-Digit Date Code)
&K Line 2: HC244
MM74HC244MTCXFull ProductionRoHS Compliant$0.189TSSOP20TAPE REEL PDFLine 1: $Y (Fairchild logo)
&Z (Asm. Plant Code)
&2 (2-Digit Date Code)
&K Line 2: HC244
MM74HC244NFull ProductionRoHS Compliant$0.255DIP20RAIL PDFLine 1: $Y (Fairchild logo)
&Z (Asm. Plant Code)
&4 (4-Digit Date Code)
&K&P (Marketing Status Code)
Line 2: MM74HC244N Line 3: MC74HC244N
MM74HC244SJFull ProductionRoHS Compliant$0.189SOP20RAIL PDFLine 1: $Y (Fairchild logo)
&Z (Asm. Plant Code)
&2 (2-Digit Date Code)
&K Line 2: HC244SJ
MM74HC244SJXFull ProductionRoHS Compliant$0.189SOP20TAPE REEL PDFLine 1: $Y (Fairchild logo)
&Z (Asm. Plant Code)
&2 (2-Digit Date Code)
&K Line 2: HC244SJ
MM74HC244WMFull ProductionRoHS Compliant$0.182SOIC-Wide20RAIL PDFLine 1: $Y (Fairchild logo)
&Z (Asm. Plant Code)
&2 (2-Digit Date Code)
&K Line 2: MM74HC Line 3: 244WM
MM74HC244WMXFull ProductionRoHS Compliant$0.182SOIC-Wide20TAPE REEL PDFLine 1: $Y (Fairchild logo)
&Z (Asm. Plant Code)
&2 (2-Digit Date Code)
&K Line 2: MM74HC Line 3: 244WM
* 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 MM74HC244 is available. Click here for more information .

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Models

Package & leadsConditionTemperature rangeVcc rangeSoftware versionRevision date
HSPICE
SOIC-Wide-20Slow25°C to 150°C4.5V to 5.5V97.4Jan 1, 1999
Typical25°C to 150°C4.5V to 5.5V97.4Jan 1, 1999
Fast25°C to 150°C4.5V to 5.5V97.4Jan 1, 1999
IBIS
SOIC-Wide-20All-40°C to 85°C4.5V to 5.5V2.1Feb 16, 1999
TSSOP-20All-40°C to 85°C4.5V to 5.5V2.1Feb 16, 1999

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Application Notes

AN-376: Logic-System Design Techniques Reduce Switching-CMOS Power (175 K) Nov 14, 2008
 

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Qualification Support

Click on a product for detailed qualification data

Product
MM74HC244MTC
MM74HC244MTCX
MM74HC244N
MM74HC244SJ
MM74HC244SJX
MM74HC244WM
MM74HC244WMX

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