Data Sheet
1300 Henley Court
Pullman, WA 99163
509.334.6306
www.digilentinc.com
Cmod A7 Reference Manual
Revised June 24, 2016
This manual applies to the Cmod A7 Rev. B
DOC#: 502-328
Copyright Digilent, Inc. All rights reserved.
Other product and company names mentioned may be trademarks of their respective owners.
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Overview
The Digilent Cmod A7 is a small, 48-pin DIP form factor board built around a Xilinx Artix-7 FPGA. The board also
includes a USB-JTAG programming circuit, USB-UART bridge, clock source, Pmod host connector, SRAM, Quad-SPI
Flash, and basic I/O devices. These components make it a formidable, albeit compact, platform for digital logic
circuits and MicroBlaze™ embedded soft-core processor designs alike. There are 44 Digital FPGA I/O signals and
two FPGA Analog inputs that are routed to 100-mil-spaced through-hole pins so that users can integrate
programmable logic design directly into a solderless breadboard circuit. At just 0.7” by 2.75”, it can also be loaded
in a standard socket and used in embedded systems.
The Cmod A7 can be purchased with either an Artix-15T or Artix-35T FPGA. These two Cmod A7 product variants
are referred to as the Cmod A7-15T and Cmod A7-35T, respectively. When Digilent documentation describes
functionality that is common to both of these variants, they are referred to collectively as the “Cmod A7”. 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 Cmod A7-15T and Cmod A7-35T are the capabilities of the FPGA found on the
board. They compare as follows:
The Cmod A7.
System Features
o 512KB SRAM with an 8-bit bus and 8ns
access times
o 4MB Quad-SPI Flash
o USB-JTAG Programming Circuitry
o Powered from USB or external 3.3-5.5V
supply connected to DIP pins
System Connectivity
o USB-UART bridge
Interaction and Sensory Devices
o 2 LEDs
o 1 RGB LED
o 2 Push Buttons
Expansion Connectors
o 48-pin DIP connector with 44 Digital I/O
and 2 Analog inputs (0-3.3V)
o One Pmod connector with 8 Digital I/O