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HCF4047BEY Datasheet(PDF) 3 Page - STMicroelectronics |
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HCF4047BEY Datasheet(HTML) 3 Page - STMicroelectronics |
3 / 12 page HCF4047B 3/12 FUNCTIONAL TERMINAL CONNECTIONS * In all cases external capacitor and resistor between pins, 1, 2 and 3 (see logic diagrams). ** Input pulse to Reset of External Counting Chip. External Counting Chip Output to pin 4. LOGIC DIAGRAM FUNCTION* TERMINAL CONNECTIONS OUTPUT PULSE FROM OUTPUT PERIOD OR PULSE WIDTH to VDD to VSS Input Pulse to Astable Multivibrator Free Running 4, 5, 6, 14 7, 8, 9, 12 - 10, 11, 13 tA (10,11) = 4.40RC True Gating 4, 6, 14 7, 8, 9, 12 5 10, 11, 13 Complement Gating 6, 14 5, 7, 8, 9, 12 4 10, 11, 13 tA (13) = 2.20RC Monostable Multivibrator Positive - Edge Trigger 4, 14 5, 6, 7, 9, 12 8 10, 11 Negative - Edge Trigger 4, 8, 14 5, 7, 9, 12 6 10, 11 Retriggerable 4, 14 5, 6, 7, 9 8, 12 10, 11 tM (10,11) = 2.48RC External Countdown** 14 5, 6, 7, 8, 9, 12 - 10, 11 |
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