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74HC423DB Scheda tecnica(PDF) 3 Page - NXP Semiconductors |
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74HC423DB Scheda tecnica(HTML) 3 Page - NXP Semiconductors |
3 / 14 page 1998 Jul 08 3 Philips Semiconductors Product specification Dual retriggerable monostable multivibrator with reset 74HC/HCT423 ORDERING INFORMATION PIN DESCRIPTION TYPE NUMBER PACKAGE NAME DESCRIPTION VERSION 74HC423N; 74HCT423N DIP16 plastic dual in-line package; 16 leads (300 mil); long body SOT38-1 74HC423D; 74HCT423D SO16 plastic small outline package; 16 leads; body width 3.9 mm; low stand-off height SOT109-1 PIN NO. SYMBOL NAME AND FUNCTION 1, 9 1A, 2A trigger inputs (negative-edge triggered) 2, 10 1B, 2B trigger inputs (positive-edge triggered) 3, 11 1RD,2RD direct reset action (active LOW) 4, 12 1Q, 2Q outputs (active LOW) 72REXT/CEXT external resistor/capacitor connection 8 GND ground (0 V) 13, 5 1Q, 2Q outputs (active HIGH) 14, 6 1CEXT,2CEXT external capacitor connection 15 1REXT/CEXT external resistor/capacitor connection 16 VCC positive supply voltage Fig.1 Pin configuration. Fig.2 Fig.3 IEC logic symbol. |
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