器件名称:
CD54FCT240H
功能描述:
FCT Interface Logic Octal Buffers/Line Drivers, Three-State
文件大小:
20.46KB 共3页
简 介:
CD74FCT240AT and CD74FCT244AT were not acquired from Harris Semiconductor. Data sheet acquired from Harris Semiconductor SCHS270A CD54/74FCT240, CD54/74FCT240AT, CD54/74FCT241, CD54/74FCT244, CD54/74FCT244AT FCT Interface Logic Octal Buffers/Line Drivers, Three-State Description The CD54/74FCT240, 240AT, 241, 244 and 244AT threestate octal buffers/line drivers use a small-geometry BiCMOS technology. The output stage is a combination of bipolar and CMOS transistors that limits the output-HIGH level to two diode drops below VCC. This resultant lowering of output swing (0V to 3.7V) reduces power bus ringing (a source of EMI) and minimizes VCC bounce and ground bounce and their effects during simultaneous output switching. The output conguration also enhances switching speed and is capable of sinking 48mA to 64mA. The CD54/74FCT240, 240AT, 244 and 244AT have activeLOW output enables (1OE, 2OE). The CD54/74FCT241 and CD54/74FCT241AT have one active-LOW (1OE) and one active-HIGH (2OE) output enable. February 1996 Features CD54/74FCT240, CD54/74FCT240AT - Inverting CD54/74FCT241, CD54/74FCT244, CD54/74FCT244AT Non-Inverting Buffered Inputs Typical Propagation Delay: 4.1ns at VCC = 5V, TA = 25oC (FCT240AT, FCT244AT) SCR-Latchup-Resistant BiCMOS Process and Circuit Design FCTXXX Types - Speed of Bipolar FAST/AS/S; FCTXXXAT Types - 30% Faster Than FAST/AS/S with Signicantly Reduced Power Consumption 48mA to 64mA Output Sink Current (Commercial/Extended Industrial) Output Vo……
