Specifications

32 Altera Corporation
EPXA1 Development Board Hardware Reference Manual
Test Points &
Test Pads
Test points on the EPXA1 development board, annotated as TPx, are
provided for voltages and ground connections; see Table 35 on page 45.
For selected signals, test pads are provided on the board, annotated as Tx;
they are listed in Table 36 on page 45.
Table 21. 3.3-V Supply Requirements
Module Max mA
EPXA1 I/O 500 (sum over all I/O pins)
SDRAM 285
Flash memory 45 × 2 = 90
UARTs 20
Ethernet 140
LEDs 15 × 18 = 270
+ (5 × 2) = 10
=280
Crystal oscillator 10
Clock buffers 37 + 22 = 59
Expansion headers 500 per header
Table 22. 1.8-V Supply Requirements
Module mA
EPXA1 device core Depends on application (1.1 A maximum)