T35 I/O Banks

Efinix FPGAs have input/output (I/O) banks for general-purpose usage. Each I/O bank has independent power pins. The number and voltages supported vary by FPGA and package.

The number of banks and the voltages they support vary by package.

Some I/O banks are merged at the package level by sharing VCCIO pins. Merged banks have underscores (_) between banks in the name (e.g., 1B_1C means 1B and 1C are connected).

Table 1. I/O Banks by Package

Package	I/O Banks	Voltage (V)	Banks with DDIO Support	Merged Banks
F256	1A - 1E, 3A - 3E	1.8, 2.5, 3.3	1B, 1C, 1D, 3B, 3C, 3D, 3E	1B_1C, 1D_1E. 3A_3B_3C, 3D_3E
	4A, 4B	3.3	–	–
F324	1A - 1E, 2A - 2C, 3A - 3C, 4A, 4B, TR, BR	1.8, 2.5, 3.3	1A - 1E, 3C, TR, BR	1B_1C, 1D_1E, 3C_TR_BR
F400	1A - 1E, 2A - 2C, 3C, 4A, 4B, TR, BR	1.8, 2.5, 3.3	1A - 1E, 3C, TR, BR	3C_TR