name: HD46508 function: Analog Data Aquisition package: 40pin DIP,40 manufacturer: Hitachi added-by: Gary Walker comment: Data from Hitachi datasheet +--()--+ Vss | 1 40| Ain0 GainSel | 2 39| Ain1 /IRQ | 3 38| Ain2 D0 | 4 37| Ain3 D1 | 5 36| Ain4 D2 | 6 35| Ain5 D3 | 7 34| Ain6 D4 | 8 33| Ain7 D5 | 9 32| Ain8 D6 |10 31| Ain9 D7 |11 30| Ain10 CLK |12 29| Ain11 E |13 28| Ain12 RS0 |14 27| Ain13 RS1 |15 26| Ain14 CS0 |16 25| Ain15 CS1 |17 24| Ref (+) R/W |18 23| COMMON Output /RES |19 22| COMPIN (input) Vcc |20 21| Ref (-) +------+ This information was added by a third party and may be incorrect. This pinout came from the Chipdir: http://www.chipdir.org/