器件名称:
CD54ACT1393A
功能描述:
Dual 2-to-4-Line Decoder/Demultiplexer
文件大小:
10.83KB 共2页
简 介:
Spec Number 2 S E M I C O N D U C T O R CD54AC139/3A CD54ACT139/3A Dual 2-to-4-Line Decoder/Demultiplexer Functional Diagram 2 1A0 5 DECODER 1 3 1A1 1 1E 14 2A0 11 DECODER 2 13 2A1 15 2E GND = 8 VCC = 16 2Y1 10 2Y2 9 2Y3 12 2Y0 1Y1 6 1Y2 7 1Y3 4 1Y0 June 1997 COMPLETE DATA SHEET COMING SOON! Description The CD54AC139/3A and CD54ACT139/3A are dual 2-to-4line decoders/demultiplexers that utilize the Harris Advanced CMOS Logic technology. These devices contain two independent binary to 1-of-4 decoders. each with a single activeLOW enable input (1E or 2E). Data on the select inputs (1A0 and 1A1 or 2A0 and 2A1) cause one of the four normally HIGH outputs to go LOW. If the enable input is HIGH, all four outputs remain HIGH. For demultiplexer operation, the enable input is the data input. The enable input also functions as a chip select when these devices are cascaded. The CD54AC139/3A and CD54ACT139/3A are supplied in 16 lead dual-in-line ceramic packages (F sufx). ACT INPUT LOAD TABLE INPUT A0, A1 E NOTE: 1. Unit load is ICC limit specied in DC Electrical Specications Table, e.g., 2.4mA Max at +25oC. UNIT LOAD (NOTE 1) 1 0.67 Absolute Maximum Ratings DC Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to +6V DC Input Diode Current, IIK For VI < -0.5V or VI > VCC + 0.5V . . . . . . . . . . . . . . . . . . . . . .±20mA DC Output Diode Current, IOK For VO < -0.5V or VO > VCC + 0.5V . . . . . . . . . . . . . . . . . . . . .±50mA DC Output Source or Sink……
