U74AC244 Datasheet | Unisonic Technologies

DESCRIPTION CMOS IC The U74AC244 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 noninverted data from the A inputs to the Y outputs. The U74AC244 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 - Wide supply voltage range from 2V to 6V - Max tpd of 7 ns from A to Y at 5V - Low power consumption, ICC = 4 μA (Max.) at 5.5V - ±24 m A output driver at 5.5V .Data Sheet.net/ - ORDERING INFORMATION Ordering Number Lead Free Halogen Free U74AC244L-P20-R U74AC244G- P20-R U74AC244L- P20-T U74AC244G- P20-T Package TSSOP-20 TSSOP-20 Packing Tape Reel Tube .unisonic..tw Copyright © 2012 Unisonic Technologies Co., Ltd 1 of 6 QW-R502-784.A Datasheet pdf - http://..co.kr/ - PIN CONFIGURATION CMOS IC - FUNCTION TABLE (each buffer) INPUTS OUTPUT Y .Data Sheet.net/ - LOGIC SYMBOL (positive logic) 1OE 1 2OE 18 19 1A1 1Y1 2A1 2Y1 1A2 1Y2 2A2...