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Data sheet acquired from Harris Semiconductor SCHS185C
September 1997 - Revised October 2003
CD74HC390, CD54HCT390, CD74HCT390
High-Speed CMOS Logic Dual Decade Ripple Counter
[ /Title (CD74 HC390 , CD74 HCT39 0) /Subject (High Speed CMOS
Features
Description
• Two BCD Decade or Bi-Quinary Counters
• One Package Can Be Configured to Divide-by-2, 4, 5,10, 20, 25, 50 or 100
• Two Master Reset Inputs to Clear Each Decade Counter Individually
• Fanout (Over Temperature Range)
- Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads - Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads • Wide Operating Temperature Range . . .
74HC390 Datasheet
