MC74VHC14 Hex Schmitt Inverter The MC74VHC14 is an advanced high speed CMOS Schmitt inverter fabricated with silicon gate CMOS technology. It achieves high speed operation similar to equivalent Bipolar Schottky TTL while maintaining CMOS low power dissipation. Pin configuration and function are the same as the MC74VHC04 but MC74VHC14 1 2 A1 Y1 3 4 This device contains protection A2 Y2 circuitry to guard against damage due to high static voltages or electric fields. However, precautions must 5 6 A3 Y3 be taken to avoid applications of any voltage higher than maximum rated Y = A voltages to this highimpedance cir- 9 8 cuit. For proper operation, V and A4 Y4 in V should be constrained to the out range GND (V or V ) V . in out CC 11 10 Unused inputs must always be A5 Y5 tied to an appropriate logic voltage level (e.g., either GND or V ). CC Unused outputs must be left open. 13 12 A6 Y6 Figure 2. Logic Diagram MAXIMUM RATINGS Symbol Parameter Value Unit V Positive DC Supply Voltage 0.5 to +7.0 V CC V Digital Input Voltage 0.5 to +7.0 V IN V DC Output Voltage 0.5 to V +0.5 V OUT CC I Input Diode Current 20 mA IK I Output Diode Current 20 mA OK I DC Output Current, per Pin 25 mA OUT I DC Supply Current, V and GND Pins 75 mA CC CC P Power Dissipation in Still Air SOIC 200 mW D TSSOP 180 T Storage Temperature Range 65 to +150 C STG V ESD Withstand Voltage Human Body Model (Note 1) >2000 V ESD Machine Model (Note 2) >200 Charged Device Model (Note 3) N/A I Latchup Performance Above V and Below GND at 125C (Note 4) 300 mA LATCHUP CC Thermal Resistance, JunctiontoAmbient SOIC 143 C/W JA TSSOP 164 Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied, damage may occur and reliability may be affected. 1. Tested to EIA/JESD22A114 A. 2. Tested to EIA/JESD22A115 A. 3. Tested to JESD22C101A. 4. Tested to EIA/JESD78. RECOMMENDED OPERATING CONDITIONS Symbol Characteristics Min Max Unit V DC Supply Voltage 2.0 5.5 V CC V DC Input Voltage 0 5.5 V IN V DC Output Voltage 0 V V OUT CC T Operating Temperature Range, All Package Types 55 125 C A t , t Input Rise or Fall Time V = 3.3 V + 0.3 V No limit ns/V r f CC V = 5.0 V + 0.5 V No limit CC