"Dedicated Pin Information for the MAX® IIZ EPM240Z Devices Version 1.0 " Dedicated Pin 68-Pin MBGA 100-Pin MBGA IO/GCLK0 E2 F2 IO/GCLK1 E1 E1 IO/GCLK2 E9 F10 IO/GCLK3 E8 G11 IO/DEV_OE J6 L8 IO/DEV_CLRn H7 K8 TDI H1 J2 TMS G1 J1 TCK J1 K1 TDO H2 K2 GND(3) "C5, E3, E7,G5,C6" "E4, G4, H5, H7, G8, E8, D7, D5" VCCINT (1) D7 "G3, E9" VCCIO1 (2) "D3, G4" "E3, J4, J8" VCCIO2 (2) "C4, F7" "G9, C8, C4" No Connect (N.C.) - - Total User I/O Pins 54 80 Notes: (1) All VCCINT pins must be connected to 1.8 V. "(2) Each set of VCCIO pins (VCCIO1 or VCCIO2) can be connected to 3.3 V, 2.5 V, 1.8 V, or 1.5 V." "(3) MAX II and MAX IIG devices separate out I/O ground (GNDIO) and core ground (GNDINT), but MAX IIZ devices unify ground to GND only."