MC74HC4020A 14-Stage Binary Ripple Counter HighPerformance SiliconGate CMOS The MC74C4020A is identical in pinout to the standard CMOS MC74HC4020A MAXIMUM RATINGS Symbol Parameter Value Unit This device contains protection circuitry to guard against damage V DC Supply Voltage (Referenced to GND) 0.5 to +7.0 V CC due to high static voltages or electric V DC Input Voltage (Referenced to GND) 0.5 to V + 0.5 V in CC fields. However, precautions must V DC Output Voltage (Referenced to GND) 0.5 to V + 0.5 V be taken to avoid applications of any out CC voltage higher than maximum rated I DC Input Current, per Pin 20 mA in voltages to this highimpedance cir- I DC Output Current, per Pin 25 mA cuit. For proper operation, V and out in V should be constrained to the out I DC Supply Current, V and GND Pins 50 mA CC CC range GND (V or V ) V . in out CC P Power Dissipation in Still Air SOIC Package 500 mW D Unused inputs must always be TSSOP Package 450 tied to an appropriate logic voltage level (e.g., either GND or V ). CC T Storage Temperature Range 65 to + 150 C stg Unused outputs must be left open. T Lead Temperature, 1 mm from Case for 10 Seconds C L SOIC or TSSOP Package 260 Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. Derating: SOIC Package: 7 mW/ C from 65 to 125 C TSSOP Package: 6.1 mW/ C from 65 to 125 C RECOMMENDED OPERATING CONDITIONS Symbol Parameter Min Max Unit V DC Supply Voltage (Referenced to GND) 2.0 6.0 V CC V , V DC Input Voltage, Output Voltage (Referenced to GND) 0 V V in out CC T Operating Temperature Range, All Package Types 55 +125 C A t , t Input Rise/Fall Time V = 2.0 V 0 1000 ns r f CC (Figure 2) V = 3.0 V 0 600 CC V = 4.5 V 0 500 CC V = 6.0 V 0 400 CC Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond the Recommended Operating Ranges limits may affect device reliability. DC CHARACTERISTICS (Voltages Referenced to GND) Guaranteed Limit V CC 55 to 25C 85C 125C Symbol Parameter Condition V Unit V Minimum HighLevel Input Voltage V = 0.1V or V 0.1V 2.0 1.50 1.50 1.50 V IH out CC 3.0 2.10 2.10 2.10 I 20 A out 4.5 3.15 3.15 3.15 6.0 4.20 4.20 4.20 V Maximum LowLevel Input Voltage V = 0.1V or V 0.1V 2.0 0.50 0.50 0.50 V IL out CC 3.0 0.90 0.90 0.90 I 20 A out 4.5 1.35 1.35 1.35 6.0 1.80 1.80 1.80 V Minimum HighLevel Output Voltage V = V or V 2.0 1.9 1.9 1.9 V OH in IH IL I 20 A 4.5 4.4 4.4 4.4 out 6.0 5.9 5.9 5.9 V =V or V I 2.4mA 3.0 2.48 2.34 2.20 in IH IL out I 4.0mA 4.5 3.98 3.84 3.70 out I 5.2mA 6.0 5.48 5.34 5.20 out V Maximum LowLevel Output Voltage V = V or V 2.0 0.1 0.1 0.1 V OL in IH IL I 20 A 4.5 0.1 0.1 0.1 out 6.0 0.1 0.1 0.1 V = V or V I 2.4mA 3.0 0.26 0.33 0.40 in IH IL out I 4.0mA 4.5 0.26 0.33 0.40 out I 5.2mA 6.0 0.26 0.33 0.40 out I Maximum Input Leakage Current V = V or GND 6.0 0.1 1.0 1.0 A in in CC I Maximum Quiescent Supply V = V or GND 6.0 4 40 160 A CC in CC Current (per Package) I = 0 A out