Octal Buffer/Line Driver
TECHNICAL DATA
IN74AC240
Octal 3-State Inverting Buffer/Line Driver/Line Receiver
High-Speed Silicon-Gate CMOS
The IN7...
Description
TECHNICAL DATA
IN74AC240
Octal 3-State Inverting Buffer/Line Driver/Line Receiver
High-Speed Silicon-Gate CMOS
The IN74AC240 is identical in pinout to the LS/ALS240, HC/HCT240. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LS/ALSTTL outputs. This octal inverting buffer/line driver/line receiver is designed to be used with 3-state memory address drivers, clock drivers, and other busoriented systems. The device has inverting outputs and two active-low output enables. Outputs Directly Interface to CMOS, NMOS, and TTL Operating Voltage Range: 2.0 to 6.0 V Low Input Current: 1.0 µA; 0.1 µA @ 25°C High Noise Immunity Characteristic of CMOS Devices Outputs Source/Sink 24 mA
ORDERING INFORMATION IN74AC240N Plastic IN74AC240DW SOIC TA = -40° to 85° C for all packages
PIN ASSIGNMENT LOGIC DIAGRAM
FUNCTION TABLE
Inputs Outputs A,B L H X YA,YB H L Z
w
w
w
.d
h s a t a
ee
. u t4
m o c
Enable A, Enable B L L H
PIN 20=VCC PIN 10 = GND
X = don’t care Z = high impedance
1
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IN74AC240
MAXIMUM RATINGS*
Symbol VCC VIN VOUT IIN IOUT ICC PD Tstg TL
*
Parameter DC Supply Voltage (Referenced to GND) DC Input Voltage (Referenced to GND) DC Output Voltage (Referenced to GND) DC Input Current, per Pin DC Output Sink/Source Current, per Pin DC Supply Current, VCC and GND Pins Power Dissipation in Still Air, Plastic DIP+ SOIC Package+ Storage Temperature Lead Temperature, 1 mm from Case for 10 ...
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