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MC74VHC244 Folha de dados(PDF) 1 Page - ON Semiconductor |
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MC74VHC244 Folha de dados(HTML) 1 Page - ON Semiconductor |
1 / 8 page © Semiconductor Components Industries, LLC, 2006 March, 2006 -- Rev. 7 1 Publication Order Number: MC74VHC244/D 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 =5V • 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 • Pb--Free Packages are Available* DATA INPUTS A1 A2 A3 A4 B1 B2 B3 B4 17 15 13 11 8 6 4 218 16 14 12 9 7 5 3 YB4 YB3 YB2 YB1 YA4 YA3 YA2 YA1 NONINVERTING OUTPUTS OUTPUT ENABLES OEA OEB 1 19 Figure 1. Logic Diagram *For additional information on our Pb--Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. 20 1 VHC244 AWLYYWWG SOIC--20 WB DW SUFFIX CASE 751D TSSOP--20 DT SUFFIX CASE 948E SOIC EIAJ--20 M SUFFIX CASE 967 A3 A2 YB4 A1 OEA GND YB1 A4 YB2 YB3 5 4 3 2 1 10 9 8 7 6 14 15 16 17 18 19 20 11 12 13 YA2 B4 YA1 OEB VCC B1 YA4 B2 YA3 B3 PIN ASSIGNMENT A = Assembly Location WL, L = Wafer Lot YY, Y = Year WW, W = Work Week VHC 244 ALYW 74VHC244 AWLYWW 1 20 See detailed ordering and shipping information in the Ordering Information Table on page 2 of this data sheet. ORDERING INFORMATION 1 20 1 20 20 1 20 1 MARKING DIAGRAM http://onsemi.com |
Nº de peça semelhante - MC74VHC244 |
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Descrição semelhante - MC74VHC244 |
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