器件名称:
CD54HC573F
功能描述:
High Speed CMOS Logic Octal Transparent Latch, Three-State Output
文件大小:
50.8KB 共8页
简 介:
S E M I C O N D U C T O R CD74HC373, CD74HCT373, CD54HC573, CD74HC573, CD74HCT573 High Speed CMOS Logic Octal Transparent Latch, Three-State Output Description The Harris CD74HC373, CD74HCT373, CD54HC573, CD74HC573, and CD74HCT573 are high speed Octal Transparent Latches manufactured with silicon gate CMOS technology. They possess the low power consumption of standard CMOS integrated circuits, as well as the ability to drive 15 LSTTL devices. The CD74HCT373 and CD74HCT573 are functionally as well as pin compatible with the standard 74LS373 and 74LS573. The outputs are transparent to the inputs when the latch enable (LE) is high. When the latch enable (LE) goes low the data is latched. The output enable (OE) controls the threestate outputs. When the output enable (OE) is high the outputs are in the high impedance state. The latch operation is independent to the state of the output enable. The 373 and 573 are identical in function and differ only in their pinout arrangements. November 1997 Features Common Latch Enable Control Common Three-State Output Enable Control Buffered Inputs Three-State Outputs Bus Line Driving Capacity Typical Propagation Delay = 12ns at VCC = 5V, CL = 15pF, TA = 25oC (Data to Output for HC373) Fanout (Over Temperature Range) - Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads - Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads Wide Operating Temperature Range . . . -55oC to 125oC Balanced Propagation Delay and Transiti……
