MC74VHC244

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 3−state buffer, and has two active−low output enables. This device is designed to be used with 3−state memory address drivers, etc. The internal circuit is composed of three stages, including a buffer output which provides high noise immunity and stable output. The inputs tolerate voltages up to 7 V, allowing the interface of 5 V systems to 3 V systems. High Speed: tPD = 3.9 ns (Typ) at VCC = 5 V Low Power Dissipation: ICC = 4 mA (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: Human Body Model > 2000 V Machine Model > 200 V Chip Complexity: 136 FETs NLV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q100 Qualified and PPAP Capable These Devices are Pb−Free and are RoHS Compliant A1 2 A2 4 A3 6 DATA INPUTS A4 8 B1 11 B2 13 B3 15 B4 17 18 YA1 16 YA2 14 YA3 12 YA4 NONINVERTING 9 YB1 OUTPUTS 7 YB2 5 YB3 3 YB4 OUTPUT OEA 1 ENABLES OEB 19 Figure 1. Logic Diagram 20 1 20 1 http://onsemi.com MARKING DIAGRAMS 20 SOIC−20 DW SUFFIX CASE 751D VHC244 AWLYYWWG ...