NE590

Philips Semiconductors Linear Products Product specification Addressable peripheral drivers NE590/591 DESCRIPTION The NE590/591 addressable peripheral drivers are high current latched drivers, similar in function to the 9334 address decoder. The device has eight Darlington power outputs, each capable of 250mA load current. The outputs are turned on or off by respectively loading a logic high or logic low into the device data input. The required output is defined by a 3-bit address. The device must be enabled by a CE input line. A common clear input, CLR, turns all outputs off when a logic low is applied. The NE590 has eight open-collector Darlington outputs which sink current to ground. The device is packaged in a 16-pin plastic or Cerdip package. The NE591 has eight open-emitter Darlington outputs which source current to an external load from a common collector line, VS. This VS line need not necessarily be the same as the 5V VCC supply. The device is packaged in an 18-pin plastic or Cerdip package. PIN CONFIGURATIONS N Package A0 A1 A2 Q0 Q1 Q2 Q3 GND 1 2 3 4 5 6 7 8 16 VCC 15 CLR 14 CE 13 D 12 Q 7 11 Q6 10 Q 5 9 TOP VIEW Q4 NE590 N Package FEATURES CS A0 A1 A2 Q0 Q1 Q2 Q3 GND 1 2 3 4 5 6 7 8 9 TOP VIEW 8 high current outputs Low-loading bus compatible inputs Power-on clear ensures safe operation NE590 will operate in addressable or demultiplex mode Allows random (addressed) data entry Easily expandable NE590 is pin compatible with 54/74LS259 APPLICA...