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MC74AC244MELG 数据表(PDF) 1 Page - ON Semiconductor |
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MC74AC244MELG 数据表(HTML) 1 Page - ON Semiconductor |
1 / 9 page © Semiconductor Components Industries, LLC, 2006 September, 2006 − Rev. 7 1 Publication Order Number: MC74AC244/D MC74AC244, MC74ACT244 Octal Buffer/Line Driver with 3−State Outputs The MC74AC244/74ACT244 is an octal buffer and line driver designed to be employed as a memory address driver, clock driver and bus oriented transmitter/receiver which provides improved PC board density. Features • 3−State Outputs Drive Bus Lines or Buffer Memory Address Registers • Outputs Source/Sink 24 mA • ′ACT244 Has TTL Compatible Inputs • Pb−Free Packages are Available* 19 20 18 17 16 15 14 2 1 3456 7 VCC 13 8 12 9 11 10 OE2 OE1 GND Pinout: 20−Lead Packages Conductors (Top View) TRUTH TABLE Inputs Outputs OE1 D (Pins 12, 14, 16, 18) L L L L H H H X Z NOTE: H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Z = High Impedance TRUTH TABLE Inputs Outputs OE2 D (Pins 3, 5, 7, 9) L L L L H H H X Z NOTE: H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Z = High Impedance *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. See general marking information in the device marking section on page 6 of this data sheet. DEVICE MARKING INFORMATION SOIC−20W DW SUFFIX CASE 751D TSSOP−20 DT SUFFIX CASE 948E SOEIAJ−20 M SUFFIX CASE 967 1 1 1 PDIP−20 N SUFFIX CASE 738 1 http://onsemi.com See detailed ordering and shipping information in the package dimensions section on page 5 of this data sheet. ORDERING INFORMATION |
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