The CY74FCT244PC three-state 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 configuration also enhances switching speed and is capable of sinking 48mA to 64mA. The CY74FCT244PC has active-LOW output enables (1OE, 2OE).
Typical Propagation Delay: 4.1ns at VCC = 5V, TA = 25°C
SCR-Latchup-Resistant BiCMOS Process and Circuit Design
48mA to 64mA Output Sink Current (Commercial/Extended Industrial)
Output Voltage Swing Limited to 3.7V at VCC = 5V
Controlled Output-Edge Rates
Input/Output Isolation to VCC
BiCMOS Technology with Low Quiescent Power
20 pin DIP. Manufactured by CYP.