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Spartan-3AN FPGA
Non-volatile Secure FPGAs for Highest System Integration
The non-volatile Spartan®-3AN platform provides the best of both worlds – extensive features and high performance of leading-edge SRAM FPGAs, and the security, board-space savings and ease-of-configurability of non-volatile FPGAs.
What's in Spartan-3AN FPGA?
Dual power management
Integrated Flash memory
- Simple and secure embedded application storage with up to 11Mb of integrated user Flash
- Enables single-chip board designs for space-conscious applications
- Twenty year data retention with 100K write cycles
- Pin compatible to the Spartan-3A platform
Multiple levels of security
- Customizable security algorithms utilizing unique Device DNA
- Monitor JTAG access and take action
- Monitor for tampering and alert for a bitstream alteration
- Ability to increase algorithm complexity
- Hidden bitstream deters bitstream snooping
- Tamper resistant packaging
- JTAG lockdown prevents “backdoor” access
- Readback disable to prevent configuration readback via JTAG or ICAP
The leading connectivity platform
- Supports most popular and emerging single-ended and differential signaling standards including TMDS, PPDS, SSTL3 Class I and II
- Pre-engineered interface IP solutions including PCI™, PCI Express®, USB, Firewire, CAN, SPI, and I2C
- Advanced interfacing supports up to 26 different single-ended and differential I/O standards
- Full hot-swap compliance and 3.3V support
- Up to 502 I/O pins
- 622+ Mb/s data transfer rate per I/O
Four level memory architecture
- Up to 176 Kb distributed SelectRAM™+ memory
- Each LUT works as a single-port or dual-port RAM/ROM
- LUTs can be cascaded to build larger memories
- Flexible memory for FIFOs, and buffers
- Up to 576 Kb embedded block RAM
- Up to 32 blocks of synchronous 18 Kb block RAM can be cascaded
- Each 18 Kb block can be configured as a single/dual-port RAM
- Supports multiple aspect ratios, data-width conversion and parity
- Up to 16 Mb of integrated Flash memory
- System flexibility with up to 11Mb of on-chip user Flash
- Single-chip solution for failsafe field upgradeability using MultiBoot feature
- New benchmark in non-volatile FPGA market for retention and cycling
- Popular low cost external memory
- Connects low cost memories via interfaces such as HSTL and SSTL
- Large system memory requirements
Configurable logic blocks
- Four slices per CLB – four each dedicated for memory and logic
- Wide-input functions – 16:1 mux in one CLB
- Fast arithmetic functions – Two look-ahead carry chains per CLB column
- Eight cascadable 16-bit addressable shift registers
Precise clock management resources
- Up to eight Digital Clock Managers (DCMs) per device
- Flexible frequency generation from 5 MHz to 333 MHz
- Precision phase shift control for 0, 90, 180 or 270 degrees
- Fine grain control (1/256 clock period) for clock data synchronization
- Precise 50/50 duty cycle generation
Comprehensive configuration capabilities
- Multiboot capability allows multiple configurations for failsafe upgrading, application control
- A variety of proprietary Platform Flash
- Convenience of a single source supplier for FPGA and flash memory
- Advanced features such as JTAG, bitsteam compression, design revisiton tracking
- High speed programming
- Supports readily available commodity SPI serial flash PROMS.
- Extensive list of supported manufacturers supported
- Easily procured through standard channels
- Popular with low cost consumer systems
Why Spartan-3AN FPGA?
Lowest total cost. Period.
- Delivers lowest total cost
- Industry’s largest selection of device/package options
- Industry’s most comprehensive IP library
- Leading embedded and DSP solutions
- Efficient, cost-effective board designs
- Allows use of fewer standard components
- Increased system reliability by eliminating external components
Instant power savings...on demand!
- Industry’s only dual power management modes
- External component power reduction
- Built-in power savings features
- Advanced software tools to optimize low power design
Industry’s largest on-chip user Flash
- Superior system flexibility with up to 11Mb of on-chip user Flash
- Space-conscious applications
- Single-chip solution for failsafe field upgradeability using MultiBoot feature
- Worry free configuration
- New benchmark in non-volatile FPGA market for retention and cycling

Device DNA enables robust, low-cost security
- Unique Device DNA serial number (57-bits)
helps prevent design cloning, unauthorized
overbuilding and reverse engineering
- Secure mechanism to deliver IP
- Customizable algorithms for security
as well as responses to failures
Low-cost Embedded Processing platform
Complete design solution for optimal results
- ISE® Foundation™ software
The industry's most complete programmable logic design solution for optimal performance, power management, cost reduction, and productivity
- ISE WebPACK™ software
Our free, easy-to-use logic design solution for your Xilinx CPLD or medium-density FPGA, with all the tools included in ISE Foundation, on both Windows and Linux
- ISE Classics software
A free collection of previously released ISE software tools
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