name: AD7546 function: 16-Bit Multiplying CMOS DAC package: 40 Pin DIP Ceramic (7546AD, 7546BD) and Plastic (7546JN, 7546KN),40 manufacturer: ANALOG DEVICE added-by: Dr. Reha BASARAN comment: Microprocessor and TTL/CMOS compatible Latched Input +--()--+ NC | 1 40| VDD DB15 | 2 39| NC DB14 | 3 38| NC DB13 | 4 37| Vref+ DB12 | 5 36| R1 DB11 | 6 35| R2 DB10 | 7 34| Vref- DB9 | 8 33| A1 Out DB8 | 9 32| A1- DB7 |10 31| A1+ DB6 |11 30| Nc DB5 |12 29| A2 Out DB4 |13 28| A2- DB3 |14 27| A2+ DB2 |15 26| NC DB1 |16 25| Vout DB0 |17 24| SW1 /CS |18 23| NC /WR |19 22| SW2 DGDN |20 21| VSS +------+ This information was added by a third party and may be incorrect. This pinout came from the Chipdir: http://www.chipdir.org/