Data Sheet

3/15/2018 Arty S7 Reference Manual [Reference.Digilentinc]
https://reference.digilentinc.com/reference/programmable-logic/arty-s7/reference-manual 7/22
Callout Description Callout Description
10 Arduino/ChipKIT shield connectors 20 Analog devices ADP 5052 power supply
The Arty S7 can be purchased with either a XC7S50 or XC7S25 FPGA loaded. These two Arty S7 product variants are referred to as the
Arty S7-50 and Arty S7-25, respectively. When Digilent documentation describes functionality that is common to both of these variants,
they are referred to collectively as the “Arty S7”. When describing something that is only common to a specific variant, the variant will be
explicitly called out by its name.
The only difference between the Arty S7-50 and Arty S7-25 is the size of the Spartan-7 part. The Spartan-7 FPGAs both have the same
capabilities, but the -50 has about a 2 times larger internal FPGA than the -25. The differences between the two variants are summarized
below:
Product Variant Arty S7-25 Arty S7-50
FPGA Part Number XC7S25-1CSGA324C XC7S50-1CSGA324C
Look-up Tables (LUTs) 14,600 32,600
Flip-Flops 29,200 65,200
Block RAM () 202.5 KB 337.5 KB
Clock Management Tiles 3 5
The board is sold standalone, but requires either a micro USB cable or 7-15V external power supply to be powered. The external power
supply must have a coaxial, center-positive connector with 2.1 mm or 2.5 mm internal diameter. When purchased from Digilent, a micro
USB cable or suitable 12V, 3A power supply can added at the time of purchase.
Since the release of the Arty S7-50, several changes have been made to its design to ease the manufacturing of Arty S7-25 and S7-50
variants. At the time of writing, a purchased Arty S7-50 may arrive in the form of either a Revision C or a Revision E of the board. These
revisions have no difference in capabilities, however there several design differences that are described in this manual. The revision of each
board is printed on the underside of the board, near the white bar-code sticker, as seen in the figure below.
Purchasing Options
Board Revisions