EP1S20F672C7
EP1S20F672C7 - Stratix FPGA 18,460 LEs 672-BGA | Intel
The Intel EP1S20F672C7 is a member of the Stratix FPGA family, delivering 18,460 logic elements, 1,669,248 bits of embedded memory, and 426 user I/O pins in a 672-ball FineLine BGA package with 1.27 mm pitch. Built on a 1.5 V core CMOS process, this device integrates high-performance DSP blocks, TriMatrix memory, and up to ten clock PLLs per device, making it suitable for high-bandwidth signal processing, custom compute acceleration, and telecommunications line-card applications.
An FPGA (Field-Programmable Gate Array) is a semiconductor device built around an array of configurable logic blocks (CLBs), programmable interconnect, and dedicated hard-IP blocks such as memory, transceivers, multipliers, and PLLs. FPGAs occupy a unique position in the system hierarchy - between general-purpose microcontrollers (fixed hardware, software-defined behavior) and ASICs (fixed hardware, fixed function). Because FPGAs are hardware-reconfigurable, designers can implement parallel processing pipelines, custom peripherals, and evolving protocols without waiting for an ASIC fab spin, at the cost of higher per-unit price and higher dynamic power than equivalent ASICs.
Key features of the EP1S20F672C7 include 18,460 logic elements (LEs), 1,669,248 RAM bits organized in TriMatrix blocks (M-RAM, M4K, M512), up to 14 DSP blocks for high-speed multiplication and accumulation, and a maximum of 426 user I/O pins. The device supports multiple I/O standards (LVTTL, LVCMOS, SSTL, HSTL, LVDS, LVPECL) through dedicated True-LVDS circuitry, and offers dedicated external memory interfaces for DDR, DDR2, SDRAM, QDRII SRAM, and RLDRAM II.
Architecturally, the Stratix family introduced a hierarchical look-up-table (LUT) based logic element, dedicated routing switch matrix (DirectDrive), and a multi-level interconnect fabric that minimises critical-path delay. Hard-IP multipliers are tightly coupled to memory blocks, enabling efficient FIR and FFT datapaths without consuming logic resources. The device is configured via SRAM cells, allowing unlimited in-system reconfiguration through JTAG, Passive Serial, Fast Passive Parallel, or Active Serial modes.
Typical applications include high-end telecommunication infrastructure (SDH/SONET line cards, multi-gigabit Ethernet bridges), test and measurement instrumentation (logic analyzers, protocol analyzers), military and aerospace signal processing, and DSP co-processing for medical imaging and radar systems. The -C7 speed grade targets commercial temperature operation at 0C to 85C with mid-range timing closure.
When designing with the EP1S20F672C7, engineers must pay attention to power estimation using the Quartus PowerPlay early power estimator before layout, ensure decoupling capacitor placement follows the Stratix pin connection guidelines, and verify that configuration scheme selection matches the board's boot architecture. The BGA-672 footprint requires multilayer PCB with controlled-impedance routing and microvia stack-up for breakout.
This page synthesizes distributor pricing, FPGA-family drop-in alternatives, and Stratix-specific design notes that complement (and in places go beyond) the official datasheet, providing an engineer-focused knowledge base for component selection.
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