MC74VHC244DWR2G ON Semiconductor

MC74VHC244 Octal Bus Buffer The MC74VHC244 is an advanced high speed CMOS octal bus buffer fabricated with silicon gate CMOS technology. The MC74VHC244 is a noninverting 3state buffer, and has two activelow output enables. This device is designed to be used with 3state memory address drivers, etc. MC74VHC244 FUNCTION TABLE INPUTS OUTPUTS OEA, OEB A, B YA, YB L L L L H H H X Z ORDERING INFORMATION Device Package Shipping MC74VHC244DWR2G SOIC20 WB 1000/Tape & Reel (Pb Free) MC74VHC244DTG 75 Units/Rail TSSOP20 MC74VHC244DTR2G 2500/Tape & Reel (Pb Free) NLV74VHC244DTR2G* 2500/Tape & Reel For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. *NLV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements AECQ100 Qualified and PPAP Capable. MAXIMUM RATINGS (Note 1) 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 500 mW D TSSOP 450 T Storage Temperature Range 65 to +150 C STG V ESD Withstand Voltage Human Body Model (Note 2) >2000 V ESD Machine Model (Note 3) >200 Charged Device Model (Note 4) >2000 I Latchup Performance Above V and Below GND at 125C (Note 5) 300 mA LATCHUP CC Thermal Resistance, JunctiontoAmbient SOIC 96 C/W JA TSSOP 128 Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. 1. V and V should be constrained to the range GND (V or V ) V . Unused inputs must always be tied to an appropriate logic voltage in out in out CC level (e.g., either GND or V ). Unused outputs must be left open. CC 2. Tested to EIA/JESD22A114 A 3. Tested to EIA/JESD22A115 A 4. Tested to JESD22C101A 5. Tested to EIA/JESD78