DS706 (v1.1) February 2, 2011 www.xilinx.com
Product Specification 1
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General Description
The Extended Spartan®-3A family of Field-Programmable Gate Arrays (FPGAs) solves the design challenges in many high-
volume, cost-sensitive electronic applications. With 12 devices ranging from 50,000 to 3.4 million system gates (as shown in
Table 1 ), the Extended Spartan-3A family provides a broad range of densities and package options, integrated DSP MACs,
and low total system cost while increasing functionality. The Extended Spartan-3A family includes the Spartan-3A devices
and the higher density Spartan-3A DSP devices. It also includes the nonvolatile Spartan-3AN devices, which combine
leading-edge FPGA and flash technologies to provide a new evolution in security, protection and functionality, ideal for
space-critical or secure applications.
The Extended Spartan-3A family improves system performance and reduces the cost of configuration. These
enhancements, combined with proven 90 nm process technology, deliver more functionality and bandwidth per dollar.
Because of its exceptionally low cost, the Extended Spartan-3A family is ideally suited to a wide range of consumer
electronics applications, including broadband access, home networking, display/projection, and digital television equipment.
The Extended Spartan-3A family is a superior alternative to mask-programmed ASICs. FPGAs avoid the high initial cost,
lengthy development cycles, the inherent inflexibility of conventional ASICs, and permit field design upgrades.
Summary of Extended Spartan-3A Family Features
• Very low-cost, high-performance logic solution for high-
volume, cost-conscious applications
• Low-cost QFP and BGA packaging, Pb-free options
• Flexible power management
• Leading connectivity platform
• Abundant, flexible logic resources
• Dedicated resources for high-speed digital signal
processing applications
• Precise clock management with up to eight Digital
Clock Managers (DCMs)
• Integrated flash memory in Spartan-3AN devices
• Eight low-skew global clock networks, eight additional
clocks per half device, plus abundant low-skew routing
• Hierarchical SelectRAM™ memory architecture
• Configuration interface to industry-standard PROMs
• Complete Xilinx® ISE® and free WebPACK™
development system software support
• MicroBlaze™ and PicoBlaze™ embedded processors
reduce risk
• Low-cost starter kits from Xilinx, distributors, and third
parties
• XA versions available for Automotive applications
7
Extended Spartan-3A Family Overview
DS706 (v1.1) February 2, 2011 Product Specification
Table 1: Summary of Extended Spartan-3A Family Attributes
Device
System
Gates
Equivalent
Logic Cells
CLBs Slices
Distributed
RAM Bits
(1)
Block RAM
Bits
(1)
In-System
Flash Bits
(2)
Dedicated
Multipliers
DSP48As DCMs
Maximum
User I/O
XC3S50A/AN 50K 1,584 176 704 11K 54K 1M 3 - 2 144
XC3S200A/AN 200K 4,032 448 1,792 28K 288K 4M 16 - 4 248
(3)
XC3S400A/AN 400K 8,064 896 3,584 56K 360K 4M 20 - 4 311
XC3S700A/AN 700K 13,248 1,472 5,888 92K 360K 8M 20 - 8 372
XC3S1400A/AN 1400K 25,344 2,816 11,264 176K 576K 16M 32 - 8 502
XC3SD1800A 1800K 37,440 4,160 16,640 260K 1,512K - - 84 8 519
XC3SD3400A 3400K 53,712 5,968 23,872 373K 2,268K - - 126 8 469
Notes:
1. By convention, one Kb is equivalent to 1,024 bits.
2. In-System flash is available in the Spartan-3AN devices only.
3. Maximum user I/O for XC3S200AN is 195.