Below is the pin out for the MAX134CMH+D (44 pin MQFP) device:
Pin 1 = N/C
Pin 2 = D3 (MSB)
Pin 3 = D2
Pin 4 = D1
Pin 5 = D0 (LSB)
Pin 6 = READ
Pin 7 = WRITE
Pin 8 = N/C
Pin 9 = DGND
Pin 10 = A0
Pin 11 = A1
Pin 12 = A2
Pin 13 = N/C
Pin 14 = V+
Pin 15 = OSC1
Pin 16 = OSC2
Pin 17 = End of Conversion
Pin 18 = Beeper
Pin 19 = In Lo
Pin 20 = Int Out
Pin 21 = Int In
Pin 22 = Filter Amp In
Pin 23 = Filter Amp Out
Pin 24 = 10 M Ohm
Pin 25 = 1.11 M Ohm
Pin 26 = 101k Ohm
Pin 27 = 10 K Ohm
Pin 28 = 1k Ohm
Pin 29 = DGND OUT
Pin 30 = COMMON
Pin 31 = Filter Resistor Out
Pin 32 = Do Not Connect
Pin 33 = Do Not Connect
Pin 34 = VRef In
Pin 35 = 400mV In
Pin 36 = Ext. Ac Out
Pin 37 = Ext. AC In
Pin 38 = V-
Pin 39 = Filter Resistor In
Pin 40 = OHMS Source
Pin 41 = Current In
Pin 42 = Buffer 1 Out
Pin 43 = Buffer 2 Out
Pin 44 = N/C