U74ACT240

UNISONIC TECHNOLOGIES CO., LTD U74ACT240 OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS „ DESCRIPTION CMOS IC The U74ACT240 is a octal buffers/drivers with 3-state outputs. It is organized as two 4-bit buffers/drivers with separate output-enable ( OE ) inputs. When OE is high, the Y outputs are in a high-impedance state, and the outputs neither load nor drive the bus lines. When OE is low, the device passes inverted data from the a inputs to the Y outputs. The U74ACT240 is designed to improve the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pull-up resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. TSSOP-20 „ FEATURES * 4.5V to 5.5V VCC operation * Inputs accept voltages to 5.5V * Max tpd of 8.5 ns from A to Y at 5V * Low power consumption, ICC = 4 μA (Max.) at 5.5V * TTL compatible * ±24 mA output driver at 5.5V www.DataSheet.net/ „ ORDERING INFORMATION Ordering Number Lead Free Halogen Free U74ACT240L-P20-R U74ACT240G- P20-R U74ACT240L- P20-T U74ACT240G- P20-T Package TSSOP-20 TSSOP-20 Packing Tape Reel Tube www.unisonic.com.tw Copyright © 2012 Unisonic Technologies Co., Ltd 1 of 6 QW-R502-785.A Datasheet pdf - http://www.DataSheet4U.co.kr/ U74ACT240 „ PIN CONFIGURATION CMOS IC „ FUNCTION TABLE (each buffer) INPUTS OE L L H A H L X w...