XC6SLX4-3TQG144I
XC6SLX4-3TQG144I - 3840-LC Spartan-6 FPGA | AMD
The AMD XC6SLX4-3TQG144I is a Spartan-6 LX field-programmable gate array with 3,840 logic cells, 102 user I/Os, 221,184 bits of embedded memory, and a maximum operating frequency of 862 MHz, housed in a 144-pin LQFP package measuring 20 x 20 mm. The -3 designation identifies the performance grade, while the I suffix identifies the industrial temperature option. The device is fabricated using 45 nm low-power process technology and is intended for cost-sensitive, low-power designs requiring a compact FPGA implementation.
A field-programmable gate array is a semiconductor whose digital logic, interconnect, and I/O behavior can be configured after fabrication. The Spartan-6 LX FPGA family belongs to the hierarchy of FPGA, programmable logic device, digital semiconductor, and embedded programmable logic. Unlike a fixed-function application-specific integrated circuit, an FPGA supports design changes, parallel signal processing, hardware acceleration, and interface adaptation without requiring a new silicon mask.
The XC6SLX4-3TQG144I provides 600 adaptive logic modules, 3,840 logic cells, 102 user I/Os, and 221,184 bits of block RAM. Its 862 MHz maximum frequency supports demanding control logic, communication interfaces, and parallel data-processing functions. The 144-LQFP package provides a large pin count relative to smaller FPGA packages, allowing more external memory, transceiver, control, and general-purpose I/O connections. Pb and Pb-free package options are available within the family, although the exact ordering-code status of this MPN should be confirmed with AMD.
The device combines configurable logic, block RAM, dedicated digital clocking resources, programmable I/O, and on-chip support features within one integrated package. Its -3 speed grade is intended to provide higher timing performance than lower-numbered Spartan-6 speed grades. Because an FPGA is a programmable digital device, final performance also depends on placement, routing, clocking, I/O standards, memory interfaces, and the selected tool version; the 862 MHz figure should therefore not be interpreted as a guaranteed operating frequency for every design.
Typical uses include industrial control, networking equipment, embedded instrumentation, video interfaces, sensor processing, and communications bridges. Its 102 I/Os make it suitable for designs needing substantial external connectivity, while 221,184 bits of embedded RAM can support buffering, packet handling, data acquisition, and general-purpose state storage. The 20 x 20 mm LQFP footprint is also practical for boards that cannot accommodate very dense BGA packages.
A key design consideration is the device's relatively low logic-cell count compared with larger Spartan-6 devices. Designs requiring multiple high-speed interfaces, large frame buffers, or substantial parallel processing may need a larger FPGA. Engineers should also verify speed-grade timing against the slowest clock domain and use the AMD Spartan-6 package pinout files when assigning all 144 package pins.
This product page consolidates verified distributor specifications, a complete same-package alternative set, practical application guidance, and design cautions that are not presented together in a single manufacturer datasheet. It is intended to accelerate component selection while preserving traceability to the provided manufacturer and distributor sources.
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