器件名称:
CD54HCT258
功能描述:
QUADRUPLE 2-LINE TO 1-LINE SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
文件大小:
251.88KB 共5页
简 介:
CD54HCT258, CD74HCT258 QUADRUPLE 2-LINE TO 1-LINE SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS SCHS276A – MAY 2003 D D D D D D 4.5-V to 5.5-V VCC Operation Wide Operating Temperature Range of –55°C to 125°C Balanced Propagation Delays and Transition Times Standard Outputs Drive Up To 10 LS-TTL Loads Significant Power Reduction Compared to LS-TTL Logic ICs Inputs Are TTL-Voltage Compatible CD54HCT258 . . . F PACKAGE CD74HCT258 . . . E PACKAGE (TOP VIEW) A/B 1A 1B 1Y 2A 2B 2Y GND 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 VCC G 4A 4B 4Y 3A 3B 3Y description/ordering information These devices are designed to multiplex signals from 4-bit data sources to 4-output data lines in bus-organized systems. The 3-state outputs do not load the data lines when the output-enable (G) input is at a high logic level. To ensure the high-impedance state during power up or power down, G should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. ORDERING INFORMATION TA –55 55°C to 125°C PACKAGE PDIP – E CDIP – F Tube Tube ORDERABLE PART NUMBER CD74HCT258E CD54HCT258F3A TOP-SIDE MARKING CD74HCT258E CD54HCT258F3A Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. FUNCTION TABLE INPUTS G H L L L L A/B X L L H H A X L H X X B X X X L H OUTPUT Y Z H L H L Please be aware that an important notice concerning availability, st……
