Overview
The XC3S700A-4FGG484I is a member of the Spartan-3A family of Field-Programmable Gate Arrays (FPGAs) produced by AMD Xilinx. This FPGA is designed to address the design challenges in high-volume, cost-sensitive applications. It offers a balance of performance, power efficiency, and feature richness, making it suitable for a wide range of electronic systems.
Key Specifications
| Attribute | Value |
|---|---|
| Device | XC3S700A |
| System Gates Equivalent | 700K |
| Logic Cells | 13,248 |
| CLB Array (One CLB = Four Slices) | 48 rows, 32 columns, 1,584 slices |
| Distributed RAM bits | 176 Kbits |
| Block RAM bits | 576 Kbits |
| Dedicated Multipliers | 32 |
| DCMs (Digital Clock Managers) | 8 |
| Maximum User I/O | 502 |
| Maximum Differential I/O Pairs | 227 |
| Package | FGG484 |
| Speed Grade | -4 |
Key Features
- Multi-standard SelectIO™ interface pins supporting LVCMOS, LVTTL, HSTL, and SSTL single-ended I/O, and LVDS, RSDS, mini-LVDS, HSTL/SSTL differential I/O.
- Selectable output drive up to 24 mA per pin and QUIETIO standard to reduce I/O switching noise.
- Full 3.3V ± 10% compatibility and hot swap compliance.
- Enhanced Double Data Rate (DDR) support and DDR/DDR2 SDRAM support up to 400 Mb/s.
- Fully compliant 32-/64-bit, 33/66 MHz PCI® technology support.
- Abundant, flexible logic resources including wide multiplexers, wide logic, and fast look-ahead carry logic.
- Enhanced 18 x 18 multipliers with optional pipeline.
- IEEE 1149.1/1532 JTAG programming/debug port.
- Hierarchical SelectRAM™ memory architecture with up to 576 Kbits of fast block RAM and up to 176 Kbits of efficient distributed RAM.
- Eight low-skew global clock networks and eight additional clocks per half device.
- Clock skew elimination (delay locked loop), frequency synthesis, multiplication, division, and high-resolution phase shifting.
Applications
The XC3S700A-4FGG484I FPGA is versatile and can be used in various applications, including:
- High-volume consumer electronics such as digital TVs, set-top boxes, and DVD players.
- Industrial control systems, medical devices, and automotive systems.
- Communication equipment, such as routers, switches, and base stations.
- Data storage and computing systems, including RAID controllers and server peripherals.
- Aerospace and defense systems requiring high reliability and performance.
Q & A
- What is the XC3S700A-4FGG484I FPGA used for?
The XC3S700A-4FGG484I FPGA is used in high-volume, cost-sensitive applications requiring a balance of performance, power efficiency, and feature richness.
- What are the key features of the XC3S700A FPGA?
Key features include multi-standard SelectIO™ interface pins, enhanced DDR support, PCI technology support, abundant logic resources, and hierarchical SelectRAM™ memory architecture.
- What is the maximum number of user I/O pins available on the XC3S700A FPGA?
The maximum number of user I/O pins is 502.
- What types of memory does the XC3S700A FPGA support?
The FPGA supports up to 576 Kbits of fast block RAM and up to 176 Kbits of efficient distributed RAM.
- Does the XC3S700A FPGA support DDR/DDR2 SDRAM?
- What is the purpose of the Digital Clock Managers (DCMs) in the XC3S700A FPGA?
The DCMs are used for clock skew elimination, frequency synthesis, multiplication, division, and high-resolution phase shifting.
- What is the QUIETIO standard in the context of the XC3S700A FPGA?
The QUIETIO standard reduces I/O switching noise.
- Is the XC3S700A FPGA compatible with 3.3V systems?
- What are some common applications of the XC3S700A FPGA?
- What is the significance of the hierarchical SelectRAM™ memory architecture in the XC3S700A FPGA?
