Data Sheet

3/15/2018 Arty S7 Reference Manual [Reference.Digilentinc]
https://reference.digilentinc.com/reference/programmable-logic/arty-s7/reference-manual 11/22
Supply Circuits Device
Maximum
Current
3.3V FPGA I/O, Clocks, Flash, PMODs, LEDs, Buttons, Switches,
USB port
IC11: Dialog Semiconductor
DA9062
2.0A
1.0V FPGA Core and Block RAM () IC11: Dialog Semiconductor
DA9062
2.5A
1.8V FPGA Auxiliary IC11: Dialog Semiconductor
DA9062
1.5A
1.35V DDR3L and associated FPGA bank IC11: Dialog Semiconductor
DA9062
2.5A
0.675V DDR3L IC15: Diodes Incorporated
AP2303
1.75A
1.25V XADC Analog Reference IC14: Texas Instruments
REF3012
25mA
(*With external power provided via Power Jack J13)
Table 1.1. Arty S7 Power Rails.
The VCCINT (1.0V) and VCC1V8 (1.8V) rails each have a 0.010 Ohm current sense resistor for monitoring the amount of current being
consumed by them. You can access them via JP3 for the VCCINT rail and JP4 for the VCC1V8 rail. To calculate the current on each power
rail, use Ohm's law with R=0.010 and V equal to the measured voltage across the jumper. To measure the voltage you can use an external
digital multimeter or oscilloscope.
After power-on, the Spartan-7 FPGA must be configured (or programmed) before it can perform any functions. You can configure the
FPGA in one of two ways:
1. A PC can use the Digilent USB-JTAG circuitry (port J10) to program the FPGA any time the power is on.
2. A file stored in the nonvolatile serial (SPI) flash device can be transferred to the FPGA using the SPI port.
1.1 Current Monitoring
2 FPGA Configuration