name: PCF8576 function: Universal LCD driver package: LQFP64,64 manufacturer: Philips +----------+----------+---------+---------+ | 1 - nc | 17 - a1 | 33 - nc | 49 - s18| | 2 - s34 | 18 - a2 | 34 - s4 | 50 - s19| | 3 - s35 | 19 - sa0 | 35 - s5 | 51 - s20| | 4 - s36 | 20 - Vss | 36 - s6 | 52 - s21| | 5 - s37 | 21 - Vlcd| 37 - s7 | 53 - s22| | 6 - s38 | 22 - nc | 38 - s8 | 54 - s23| | 7 - s39 | 23 - nc | 39 - s9 | 55 - s24| | 8 - nc | 24 - nc | 40 - s10| 56 - s25| | 9 - nc | 25 - bp0 | 41 - s11| 57 - s26| | 10 - sda | 26 - bp2 | 42 - s12| 58 - s27| | 11 - scl | 27 - bp1 | 43 - s13| 59 - s28| | 12 - sync| 28 - bp3 | 44 - s14| 60 - s29| | 13 - clk | 29 - s0 | 45 - s15| 61 - s30| | 14 - Vdd | 30 - s1 | 46 - s16| 62 - s31| | 15 - osc | 31 - s2 | 47 - s17| 63 - s32| | 16 - a0 | 32 - s3 | 48 - nc | 64 - s33| +----------+----------+---------+---------+ This pinout came from the Chipdir: http://www.chipdir.org/