Data sheet acquired from Harris Semiconductor SCHS216D
November 1997 - Revised October 2003
CD74HC4518, CD54HC4520, CD74HC4520, CD74HCT4520
High-Speed
CMOS Logic Dual Synchronous Counters
[ /Title (CD74 HC451 8, CD74 HC452 0, CD74 HCT45 20) /Subject
Features
• Positive or Negative Edge Triggering
• Synchronous Internal Carry Propagation
• Fanout (Over Temperature Range) - Standard Outputs .
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10 LSTTL Loads - Bus Driver Outputs .
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15 LSTTL Loads
• Wide Operating Temperature Range .
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-55oC to 125oC
• Balanced Propagation Delay and Transition Times
• Significant Power Reduction Compared to LSTTL Logic ICs
• HC Types - 2V to 6V Operation - H...