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The MC74VHC244 is an advanced high speed CMOS octal bus buffer fabricated with silicon gate CMOS technology. The MC74VHC244 is a noninverting 3–state buffer, and has two active–low output enables. This device is designed to be used with 3–state memory address drivers, etc. • High Speed: tPD = 3.9 ns (Typ) at VCC = 5 V • Low Power Dissipation: ICC = 4 µA (Max) at TA = 25°C • High Noise Immunity: VNIH = VNIL = 28% VCC • Power Down Protection Provided on Inputs • Balanced Propagation Delays • Designed for 2 V to 5.5 V Operating Range • Low Noise: VOLP = 0.9 V (Max) • Pin and Function Compatible with Other Standard Logic Families • Latchup Performance Exceeds 300 mA • ESD Performance: HBM > 2000 V; Machine Model > 200 V • Chip Complexity: 136 FETs
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