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MC74AC240, MC74ACT240
Octal Buffer/Line Driver with 3-State 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.
Features
• 3−State Outputs Drive Bus Lines or Buffer Memory Address
Registers
• Outputs Source/Sink 24 mA • ′ACT240 Has TTL Compatible Inputs • These are Pb−Free Devices
TRUTH TABLE
Inputs
Outputs
OE1 D (Pins 12, 14, 16, 18)
LL LH HX
H L Z
NOTE:
H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Z = High Impedance
TRUTH TABLE
Inputs
Outputs
OE2 D
LL LH HX
(Pins 3, 5, 7, 9)
H L Z
NOTE:
H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Z = High Impedance
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