器件名称:
MC74AC240
功能描述:
OCTAL BUFFER/LINE DRIVER WITH 3-STATE OUTPUTS
文件大小:
100.23KB 共8页
简 介:
MC74AC240, MC74ACT240 Octal Buffer/Line Driver with 3State Outputs The MC74AC240/74ACT240 is an octal buffer and line driver designed to be employed as a memory address driver, clock driver and bus oriented transmitter or receiver which provides improved PC board density. http://onsemi.com PDIP20 N SUFFIX CASE 738 20 1 3State Outputs Drive Bus Lines or Buffer Memory Address Registers Outputs Source/Sink 24 mA ′ACT240 Has TTL Compatible Inputs VCC 20 OE2 19 18 17 16 15 14 13 12 11 20 1 SO20 DW SUFFIX CASE 751D 20 1 TSSOP20 DT SUFFIX CASE 948E EIAJ20 M SUFFIX CASE 967 1 OE1 2 3 4 5 6 7 8 9 10 GND 20 1 Figure 1. Pinout: 20Lead Packages Conductors (Top View) TRUTH TABLE Inputs OE1 L L H NOTE: D L H X Outputs (Pins 12, 14, 16, 18) H L Z ORDERING INFORMATION Device MC74AC240N MC74ACT240N MC74AC240DW MC74AC240DWR2 MC74ACT240DW MC74ACT240DWR2 MC74AC240DTR2 MC74ACT240DTR2 Package PDIP20 PDIP20 SOIC20 SOIC20 SOIC20 SOIC20 Shipping 18 Units/Rail 18 Units/Rail 38 Units/Rail 1000 Tape & Reel 38 Units/Rail 1000 Tape & Reel H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Z = High Impedance TSSOP20 2500 Tape & Reel TSSOP20 2500 Tape & Reel EIAJ20 EIAJ20 2000 Tape & Reel 2000 Tape & Reel TRUTH TABLE Inputs OE2 L L H NOTE: D L H X Outputs (Pins 3, 5, 7, 9) H L Z MC74AC240MEL MC74ACT240MEL H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Z = High Impedance For information on tape and reel specifications, including part orientation and tape sizes, ……
