XC7A50T-1CSG324I Spartan-6 Family Overview integrated circut ic chip programmer ic chip programming

General Description

The Spartan®-6 family provides leading system integration capabilities with the lowest total cost for high-volume applications. The thirteen-member family delivers expanded densities ranging from 3,840 to 147,443 logic cells, with half the power consumption of previous Spartan families, and faster, more comprehensive connectivity. Built on a mature 45 nm low-power copper process technology that delivers the optimal balance of cost, power, and performance, the Spartan-6 family offers a new, more efficient, dual-register 6-input lookup table (LUT) logic and a rich selection of built-in system-level blocks.

These include 18 Kb (2 x 9 Kb) block RAMs, second generation DSP48A1 slices, SDRAM memory controllers, enhanced mixed-mode clock management blocks, SelectIO™ technology, poweroptimized high-speed serial transceiver blocks, PCI Express® compatible Endpoint blocks, advanced system-level power management modes, auto-detect configuration options, and enhanced IP security with AES and Device DNA protection. These features provide a lowcost programmable alternative to custom ASIC products with unprecedented ease of use. Spartan-6 FPGAs offer the best solution for high-volume logic designs, consumer-oriented DSP designs, and cost-sensitive embedded applications.

Spartan-6 FPGAs are the programmable silicon foundation for Targeted Design Platforms that deliver integrated software and hardware components that enable designers to focus on innovation as soon as their development cycle begins.

Summary of Spartan-6 FPGA Features

• Spartan-6 Family:

• Spartan-6 LX FPGA: Logic optimized

• Spartan-6 LXT FPGA: High-speed serial connectivity

• Designed for low cost

• Multiple efficient integrated blocks

• Optimized selection of I/O standards

• Staggered pads

• High-volume plastic wire-bonded packages

• Low static and dynamic power

• 45 nm process optimized for cost and low power

• Hibernate power-down mode for zero power

• Suspend mode maintains state and configuration with multi-pin wake-up, control enhancement • Lower-power 1.0V core voltage (LX FPGAs, -1L only)

• High performance 1.2V core voltage (LX and LXT FPGAs, -2, -3, and -4 speed grades)

Input/Output

The number of I/O pins varies from 102 to 576, depending on device and package size. Each I/O pin is configurable and can comply with a large number of standards, using up to 3.3V. The Spartan-6 FPGA SelectIO Resources User Guide describes the I/O compatibilities of the various I/O options. With the exception of supply pins and a few dedicated configuration pins, all other package pins have the same I/O capabilities, constrained only by certain banking rules. All user I/O is bidirectional; there are no input-only pins.

I/O Electrical Characteristics

Single-ended outputs use a conventional CMOS push/pull output structure, driving High towards VCCO or Low towards ground, and can be put into high-Z state. Many I/O features are available to the system designer to optionally invoke in each I/O in their design, such as weak internal pull-up and pull-down resistors, strong internal split-termination input resistors, adjustable output drive-streCM GROUPhs and slew-rates, and differential termination resistors. See the Spartan-6 FPGA SelectIO Resources User Guide for more details on available options for each I/O standard.

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