UDN2585 7-bit 50V 500mA TTL-input PNP (high-side) darlington driver. The drivers need no power supply; the GND pin is the common anode of the seven integrated protection diodes. +----------+ +-------+ A0 |1 +--+ 16| /Y0 | A |/Y | A1 |2 15| /Y1 |---+---| A2 |3 14| /Y2 | 0 | Z | A3 |4 UDN 13| /Y3 | 1 | 0 | A4 |5 2585 12| /Y4 +-------+ A5 |6 11| /Y5 A6 |7 10| /Y6 VCC |8 9| GND +----------+ [This information is part of the GIICM]