"Dedicated Pin Information for the MAX® II EPM1270 / EPM1270G Devices Version 1.5" Dedicated Pin 144-Pin TQFP 256-Pin FBGA 256-Pin MBGA IO/GCLK0 18 H5 K1 IO/GCLK1 20 J5 L1 IO/GCLK2 89 J12 M20 IO/GCLK3 91 H12 L20 IO/DEV_OE 60 M8 W12 IO/DEV_CLRn 61 M9 Y13 TDI 34 L6 U2 TMS 33 N4 T3 TCK 35 P3 W2 TDO 36 M5 V2 GNDINT "17, 54, 92, 128" "H7, H9, J8, J10" "J4, U12, M17, D12" GNDIO "10, 26, 47, 65, 83, 99, 115, 135" "A1, A16, B2, B15, G7, G8, G9, G10, K7, K8, K9, K10, R2, R15, T1, T16" "H3, J3, M4, N3, U9, V8, V9, V13, H18, J17, N18, C8, D9, C12, C13, M18" VCCINT (1) "19, 56, 90, 126" "H8, H10, J7, J9" "K4, U11, L17, D11" VCCIO1 (2) "9, 25" "C1, H6, J6, P1" "K3, L3, L4, M3" VCCIO2 (2) "116, 136" "A3, A14, F8, F9 " "C9, C10, D10, C11" VCCIO3 (2) "82, 100 " "C16, H11, J11, P16" "J18, K17, K18, L18" VCCIO4 (2) "46, 64 " "L8, L9, T3, T14" "U10, V10, V11, V12" No Connect (N.C.) - - - Total User I/O Pins 116 212 212 Notes: "1. For EPM1270 devices, all VCCINT pins must be connected to either 3.3 V or 2.5 V, but not a combination of both." " For EPM1270G devices, all VCCINT pins must be connected to 1.8 V." "2. Each set of VCCIO pins (VCCIO1, VCCIO2, etc.) can be connected to 3.3 V, 2.5 V, 1.8 V, or 1.5 V."