Digilent JTAG-HS3 Programming Cable for Xilinx FPGAs

The Digilent JTAG-HS3 Programming Cable is a high-speed USB2 cable for programming and debugging Xilinx FPGAs and SoCs on compatible development boards, with bus speeds of up to 30Mbps.

Overview

The JTAG-HS3 connects to target boards through the standard Xilinx 2x7, 2mm programming header, providing a direct link between a PC and the target device. It is fully compatible with the Xilinx development tool suite, including iMPACT, ChipScope, EDK and Vivado. The cable is powered entirely through its USB connection to the PC, and the PC recognises it as a Digilent programming cable on connection, even when it is not attached to a target board.

Key Features

• High-speed USB2 interface that drives the JTAG bus at speeds up to 30Mbps, with user-adjustable frequency
• Separate Vref pin that supplies the JTAG signal buffers
• Wide voltage compatibility, supporting JTAG signal voltages from 1.8V to 5V
• 24mA three-state buffers for driving target boards
• Micro-AB USB2 connector that plugs directly into the standard Xilinx JTAG header
• Compact, all-in-one design that integrates the necessary functionality

Voltage Connection

For correct operation, the cable's Vref pin must be connected to the same voltage supply (VCCO_0) that drives the JTAG port on the FPGA.

Tool Compatibility

The cable is fully compatible with Xilinx ISE 14.1 and newer, and Xilinx Vivado 2013.3 and newer.

Dimensions and Weight

The cable measures 43 mm (H) x 33 mm (W) x 15 mm (D) and weighs 39 grams. It is ideal for embedded design and development.