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EP3SL50F780I3G - Stratix III L FPGA, 47.5K LE, 780-BGA | Intel
EP3SL50F780I3G

EP3SL50F780I3G - Stratix III L FPGA, 47.5K LE, 780-BGA | Intel

The Intel (formerly Altera) EP3SL50F780I3G is a low-power member of the Stratix® III L FPGA family, integrating 47,500 logic elements, 19,000 adaptive logic modules (ALMs), and 2.08 Mbits of embedded memory into a 780-ball FineLine BGA (FCBGA) package. It is offered in the -I3 industrial speed/temperature grade, optimized for power-sensitive applications requiring balanced logic, memory, and DSP throughput. According to the DigiKey product listing, the device exposes 488 user I/Os and operates from a 1.1 V core supply, making it suitable for mid-complexity signal processing, video bridging, and high-speed serial interface aggregation. An FPGA (Field-Programmable Gate Array) is a programmable logic device containing an array of configurable logic blocks, embedded memory, DSP blocks, and programmable interconnect fabric. FPGAs are positioned between discrete logic and ASICs in the digital design hierarchy: ASIC > CPLD > FPGA > discrete logic > standard-cell IC, and they belong to the broader family of programmable logic devices that includes CPLDs, SPLDs, and structured ASICs. The Stratix III L sub-family specifically reduces static and dynamic power versus the standard Stratix III family while preserving the same high-performance transceiver and memory architecture, enabling fan-out to power-budgeted telecom, industrial, and test & measurement designs. Key features of the EP3SL50F780I3G include support for up to 488 general-purpose I/Os, 2,184,192 bits of total on-chip memory (distributed plus block RAM), high-speed transceivers, and dedicated DSP blocks for fixed- and floating-point operations. The 780-pin FCBGA package supports high-pin-count designs while offering a thermal envelope that scales with PCB copper area. The -I3 grade specifies an industrial operating range of -40C to +100C junction and a moderate speed bin, balancing timing margin against leakage. On the architecture side, Stratix III L uses Intel's 65 nm process and an ALM-based fabric that delivers finer-grained logic packing than legacy 4-LUT architectures, reducing logic-element waste for wide arithmetic paths. Memory blocks (M9K/M144K) and DSP blocks operate at up to ~500 MHz internally per the Stratix III family capability, supporting external memory interfaces such as DDR3 with PHY hard IP. Typical applications include wireless baseband preprocessing, software-defined radio front ends, video format conversion and bridging, industrial motor control and robotics, medical imaging preprocessing, and test & measurement instrumentation. Engineers targeting these workloads select this device when they need more logic and DSP than a Cyclone family device but do not require the higher transceiver count of a Stratix V-class FPGA. For PCB design, allocate at least 6 to 8 PCB layers for the 780-BGA break-out, with via-in-pad recommended for the inner-row balls. Use the Quartus II (or Intel Quartus Prime) software for synthesis, place-and-route, and power estimation; legacy Stratix III support is available through the Quartus II subscription service. This page synthesizes distributor pricing, drop-in package-compatible alternatives from the Stratix III L family, and PCB design considerations that complement the manufacturer datasheet.

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EP3SL50F780I3N - Stratix III L FPGA, 47.5K LE, FBGA-780 | Intel
EP3SL50F780I3N

EP3SL50F780I3N - Stratix III L FPGA, 47.5K LE, FBGA-780 | Intel

The Intel EP3SL50F780I3N is a member of the Stratix III L FPGA family fabricated on a 65 nm CMOS process, integrating 47,500 logic elements, 1,900 LABs (Logic Array Blocks), and 2,184,192 bits of embedded memory in a 780-ball FC-FBGA (Flip-Chip Fine-pitch BGA) package. The device supports up to 488 user I/Os and operates from a 1.1 V core supply, providing a balance of high logic density, signal integrity, and power efficiency for mid-range high-performance designs. Speed-grade -3 places the part in the high-performance tier of the Stratix III L family. A Field Programmable Gate Array (FPGA) is a reconfigurable integrated circuit whose logic fabric and routing resources can be programmed after manufacture to implement arbitrary digital functions. FPGAs sit between fixed-function ASICs and software-driven processors in the digital design hierarchy, offering parallelism, deterministic timing, and the ability to update hardware behavior in the field. The Stratix III family targets high-performance DSP, communications, and signal-processing designs where high logic density, embedded memory, and high-speed transceivers are required. Key features of the EP3SL50F780I3N include 47,500 logic elements, 1,900 LABs, 2,184,192 bits of embedded memory, 488 user I/Os, and compliance with the IEEE 1149.1 JTAG boundary-scan standard. The -3 speed grade delivers the highest performance tier within Stratix III L, with Fmax performance suitable for high-speed DSP pipelines. The FBGA-780 package uses flip-chip technology to minimize lead inductance and maximize signal integrity at multi-hundred-megahertz switching rates. The device is built on a 65 nm low-leakage process technology, with programmable power options that allow unused blocks to enter low-power states. This combination of logic density, memory bandwidth, and I/O count makes the EP3SL50F780I3N suitable for high-throughput data-pipeline, telecom baseband, video processing, and ASIC prototyping applications. Typical applications include high-speed DSP filter and FFT pipelines, telecom baseband processing, ASIC prototyping, video and image processing engines, and high-speed serial protocol bridging. Designers typically pair the device with external DDR2/DDR3 SDRAM and clock-generation PLLs. When designing with this device, ensure that all 1.1 V core and auxiliary supplies are properly decoupled with low-ESR capacitors placed as close as possible to the package balls. The FBGA-780 footprint requires a multilayer PCB with microvia technology and matched-length traces for high-speed memory interfaces. Reference the Quartus II development environment and Altera JTAG programming cables for device configuration.

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EP3SL50F780I4 - 50K LE Stratix III L FPGA, 780-BGA, Industrial | Intel
EP3SL50F780I4

EP3SL50F780I4 - 50K LE Stratix III L FPGA, 780-BGA, Industrial | Intel

The Intel (formerly Altera) EP3SL50F780I4 is a member of the low-power Stratix III L FPGA family, integrating 47,500 logic elements and 2,184,192 bits of embedded memory into a 780-ball flip-chip BGA (FCBGA) package. The device is built on a 40 nm TSMC process, runs over fabric at up to 500 MHz internally, and is rated for the industrial temperature range (-40C to +100C). It offers 488 user I/Os and supports up to 8.5 Mbits of M20K block memory with 244 dedicated 18x18 multipliers. A Field Programmable Gate Array (FPGA) is a reprogrammable semiconductor device that combines programmable logic blocks, programmable interconnect, and dedicated hardened IP (memory, multipliers, transceivers, PLLs). FPGAs occupy a position in the broader hierarchy of programmable logic devices (CPLD -> FPGA -> SoC FPGA) and are used to implement arbitrary digital logic, DSP pipelines, and high-speed serial interfaces. Compared with CPLDs, FPGAs offer higher logic density, embedded memory, and SERDES capability, at the cost of higher static power and more complex configuration. Key features of the EP3SL50F780I4 include 47,500 logic elements, 2,184,192 bits of embedded SRAM arranged as M20K blocks, 244 18x18 multipliers for DSP, support for DDR3/QDRII+/RLDRAM II external memory interfaces, and up to 8 PLLs plus 28 global clock networks. The device supports LVDS, LVTTL, LVCMOS, SSTL, and HSTL I/O standards through its 488 user pins, and provides built-in PCIe hard IP blocks. Architecturally, Stratix III L uses a core supply of 0.9 V, a phase-locked clock tree, and programmable power technology that allows unused logic tiles to enter a near-zero static-current state. The 780-FCBGA package supports the full GPIO and transceiver bandwidth of the device and is the largest FBGA variant in the Stratix III L line, accommodating the largest EP3SL340 die and ball-mapped variants. Typical applications include high-throughput DSP pipelines, software-defined radio, telecom baseband processing, ASIC prototyping, high-speed serial protocol bridging (PCIe Gen2, SRIO, Gbps Ethernet), broadcast video processing, and military/aerospace signal processing. The industrial temperature grade and high logic density make it suitable for ruggedized embedded computing platforms. When designing with this FPGA, plan for power sequencing across the 0.9 V core, 1.0/1.2 V analog, 1.5/2.5/3.3 V I/O rails, and follow Intel's Stratix III power-up and configuration guidelines. Quartus II (or newer Intel Quartus Prime) software is required for synthesis, place-and-route, and configuration bitstream generation. This page synthesizes Intel/Altera distributor pricing, package-compatible alternatives from the Stratix III family, and practical design notes not found in the manufacturer datasheet alone.

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EP3SL50F780I4G - 47,500 Logic Elements FPGA | Altera
EP3SL50F780I4G

EP3SL50F780I4G - 47,500 Logic Elements FPGA | Altera

Altera EP3SL50F780I4G is a high-density Stratix III L field-programmable gate array containing 47,500 logic elements and 2,184,192 bits of embedded memory in a 780-ball fine-pitch BGA package. The verified source identifies 488 I/O and the F780 780-BBGA, FCBGA package designation. The part belongs to the programmable-logic hierarchy: FPGA, programmable logic device, logic IC, and integrated circuit. Its combination of logic capacity, embedded memory, and a large ball-grid array supports complex digital systems while preserving reconfigurable hardware implementation. A field-programmable gate array is an integrated circuit built from configurable logic blocks, programmable routing, input/output resources, and dedicated functional blocks. Designers configure these resources to implement processors, interfaces, protocol bridges, digital-signal-processing pipelines, and control logic. FPGAs differ from fixed-function ASICs because their logic can be revised after fabrication, making them useful for evolving standards, late design changes, prototypes, and production equipment requiring field updates. The EP3SL50F780I4G provides 47,500 logic elements, 2,184,192 embedded-memory bits, and 488 I/O according to the verified distributor listing. These headline resources place the device in high-density programmable-logic designs where substantial parallel processing and multiple external interfaces are required. The 780-BBGA, FCBGA construction supports the high pin count associated with 488 I/O and is intended for advanced surface-mount assemblies using appropriate BGA assembly and inspection processes. Stratix III L devices use SRAM-based configuration memory, so the configured FPGA design is normally loaded at power-up from an external configuration source. Implementation therefore requires attention to configuration pins, clock distribution, power sequencing, decoupling, and signal integrity. Because detailed process technology, transceiver count, maximum clock frequency, operating voltage, temperature grade, and thermal metrics are not present in the supplied data, those parameters remain explicitly unverified rather than being inferred. Typical applications include telecommunications infrastructure, industrial automation and control, test and measurement equipment, medical imaging hardware, aerospace and defense electronics, video processing, and high-speed data acquisition. In these systems, the device can implement multiple processing and interface functions in one programmable device. A 488-I/O resource count can simplify system partitioning when many external memories, converters, processors, or backplane transceivers must be connected. The primary design constraint is package complexity. A 780-ball FCBGA assembly requires controlled impedance routing, multiple supply rails with local decoupling, reliable power delivery, thermal analysis, and manufacturer-qualified PCB assembly. Firmware, configuration storage, and JTAG or other supported debug resources must also be validated against the complete manufacturer documentation before release. This page consolidates verified stock, package, I/O, logic-element, and embedded-memory data with practical engineering guidance and same-family configuration context. It does not invent a missing block diagram, pin assignment, speed grade, power specification, or lifecycle claim.

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EP3SL50F780I4L - 47.5K Logic Elements Stratix III L FPGA | Intel
EP3SL50F780I4L

EP3SL50F780I4L - 47.5K Logic Elements Stratix III L FPGA | Intel

The Intel EP3SL50F780I4L is a low-power Stratix III L FPGA delivering 47,500 logic elements, 488 user I/Os, and 2,184,192 bits of embedded memory in a 780-pin FCBGA package. The part belongs to the Stratix III L family, which is the power-optimized variant of the Stratix III generation fabricated on a 65 nm CMOS process and operates with a core voltage of 0.9 V. A Field-Programmable Gate Array (FPGA) is a reconfigurable semiconductor that contains an array of programmable logic blocks, embedded memory, DSP blocks, and high-speed transceivers all wired together through a programmable interconnect fabric. FPGAs occupy the middle ground between fixed-function ASICs and software-driven microcontrollers: they deliver ASIC-class throughput and parallelism while remaining field-updatable through their SRAM-based configuration memory. Within the broader semiconductor taxonomy, an FPGA sits at the top of the programmable logic hierarchy (FPGA -> programmable logic -> logic IC -> integrated circuit). Stratix III devices target high-performance DSP, communications, and signal-processing applications that require a balance of logic density, embedded memory bandwidth, and transceiver I/O. Key features of the EP3SL50F780I4L include 488 user I/O pins, 2,184,192 bits of embedded RAM, integrated DSP blocks, and support for multiple I/O standards such as LVDS, LVTTL, LVCMOS, and HSTL through 8 I/O banks. The 'L' suffix identifies the device as the low-power member of the Stratix III family, with reduced static and dynamic power versus the Stratix III E variant. The 'I4' speed grade and 'L' package suffix place the device in the industrial temperature range (-40C to +100C) in a lead-free 780-ball FCBGA. Typical applications include high-speed data acquisition, telecom baseband processing, military/aerospace signal processing, medical imaging, and ASIC prototyping. The wide I/O count and large embedded memory make the EP3SL50F780I4L well-suited to designs that aggregate multiple data streams or implement deep packet buffers. When designing with this FPGA, plan for multi-rail power (typically 0.9 V core, 1.1 V/1.2 V PLL, 1.5 V/1.8 V/2.5 V/3.3 V I/O), controlled-impedance PCB routing for transceiver channels, and adequate thermal management for the FCBGA substrate. Quartus II is the supported design suite; legacy projects should migrate to the latest Quartus Prime release that retains Stratix III device support. This page consolidates distributor inventory, drop-in Stratix III alternatives, and engineering design notes that go beyond what the manufacturer datasheet alone provides for legacy device sourcing.

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EP3SL50F780I4LG - Stratix III L FPGA, 47.5K LE, 780-FCBGA | Intel
EP3SL50F780I4LG

EP3SL50F780I4LG - Stratix III L FPGA, 47.5K LE, 780-FCBGA | Intel

The Intel (formerly Altera) EP3SL50F780I4LG is a Stratix III L family field-programmable gate array (FPGA) delivering 47,500 logic elements, 19,000 adaptive logic modules (ALMs), and 2,184,192 bits of embedded memory in a 780-ball flip-chip BGA (FCBGA) package. The device integrates 488 user I/Os, supports 1.1 V core operation, and is rated for the industrial temperature range of -40C to +100C. Per the DigiKey listing, the part is a member of the low-power (L) Stratix III sub-family aimed at high-performance, power-sensitive designs. A Field-Programmable Gate Array (FPGA) is a semiconductor device built around an array of configurable logic blocks (CLBs), interconnect, and embedded hardened IP such as block RAM, DSP slices, transceivers, and PLLs. The Stratix III line sits in the high-end domain hierarchy: FPGA -> programmable logic -> logic IC -> integrated circuit. FPGAs are chosen over ASICs when time-to-market, in-field reprogrammability, or low-to-medium production volume justify their higher unit cost and higher power consumption. The 'L' suffix denotes the Stratix III low-power variant, which traded peak performance for substantially lower static power versus the standard Stratix III family. Key features of the EP3SL50F780I4LG include 47,500 logic elements (roughly 19,000 ALMs in Altera's adaptive logic module architecture), 2.184 Mbit of embedded RAM, 488 user I/O pins, and the speed grade 4 industrial-grade device (the 'I4' suffix indicates industrial temperature range and speed grade 4). The 780-FCBGA flip-chip BGA package provides high pin density and excellent electrical performance for high-speed signals. The device supports multiple I/O standards and serial transceivers typical of the Stratix III family. Typical applications for this device include high-performance digital signal processing, telecom baseband processing, military and aerospace signal processing, high-speed instrumentation, and ASIC prototyping. Designers choose this part when they need a balance of logic density, embedded memory, and I/O count in a thermally manageable low-power FPGA. The 'I4LG' suffix indicates lead-free, industrial-temperature, speed-grade 4 packaging. When designing with this FPGA, verify that PCB BGA escape routing, power-rail decoupling, and thermal management are sized for the 780-pin flip-chip BGA footprint. Use Altera/Intel Quartus II design software for synthesis, place-and-route, and bitstream generation. Program the configuration flash with the appropriate JTAG or Active Serial (AS) scheme.

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EP3SL50F780I4LN - Stratix III L FPGA 47.5K LE 780-FBGA | Intel / Altera
EP3SL50F780I4LN

EP3SL50F780I4LN - Stratix III L FPGA 47.5K LE 780-FBGA | Intel / Altera

The Intel (formerly Altera) EP3SL50F780I4LN is a Stratix III L family field-programmable gate array (FPGA) with 47,500 logic elements (LEs), 2,184,192 bits of embedded memory, and 488 user I/Os, housed in a 780-ball flip-chip BGA (FC-FBGA) package. It is the industrial-temperature, lead-free (-4) speed-grade variant of the EP3SL50F780 logic-density class and targets designs that need Stratix III transceivers and DSP blocks in a low-power variant. A Field-Programmable Gate Array (FPGA) is a programmable logic device that combines configurable logic blocks (CLBs), programmable interconnects, and dedicated hard IP such as block RAM, DSP blocks, and high-speed transceivers. Within the broader semiconductor taxonomy, an FPGA belongs to programmable logic (PLD) and to the ASIC-prototyping/high-performance-compute category, providing hardware-level parallelism with software-defined functionality. The Stratix III family was introduced on TSMC's 65 nm process and is split into L (low-power) and E (enhanced-logic/memory) variants; the L family reduces dynamic power by approximately 50% relative to E at comparable speed. Key features of the EP3SL50F780I4LN include 47,500 LEs organized into 1,900 logic array blocks (LABs), 2,184,192 bits of embedded memory distributed between MRAM blocks and M9K block RAM, and dedicated 18x18 multipliers for DSP. The device supports high-speed transceivers suitable for multi-gigabit serial links (per family capability) and offers programmable power technology with hot-socketing support for live insertion into backplanes. The architecture combines 9-Kbit M512 blocks, 144-Kbit M-RAM blocks, and adaptive logic modules (ALMs) that implement both combinatorial and registered logic. Industrial temperature grade (-40C to +100C ambient) makes the device suitable for harsh-environment embedded computing, while the -4 speed grade balances timing margin against Fmax. Typical applications include high-speed serial interface bridging, telecom line-card data-path processing, military/aerospace signal processing, ASIC prototyping, and DSP-intensive industrial vision or radar front-ends. The 780-FBGA package with 1.0 mm ball pitch provides high I/O density for multi-channel designs. When designing with this device, ensure PCB layout follows Intel/Altera flip-chip BGA escape rules with microvia or via-in-pad technology. Thermal management should account for the device's typical power dissipation under sustained logic activity, and decoupling must follow the Stratix III PDN guidelines. Power sequencing must comply with the Stratix III hot-socket specification to avoid inrush current damage. This page synthesizes distributor pricing, drop-in alternative ordering numbers, and design notes that are not aggregated on the manufacturer datasheet alone.

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EP3SL50F780I4N - Stratix III L FPGA, 47.5K LE, 780-FBGA | Intel
EP3SL50F780I4N

EP3SL50F780I4N - Stratix III L FPGA, 47.5K LE, 780-FBGA | Intel

The Intel EP3SL50F780I4N is a low-power member of the Stratix III L Field Programmable Gate Array (FPGA) family, integrating 47,500 Logic Elements, 2,184,192 bits of embedded memory, and 488 user I/O pins into a 780-ball Flip-Chip BGA (FC-FBGA) package. It is fabricated on a 65 nm TSMC process and targets high-density, power-sensitive designs that require the programmability of an FPGA with low static and dynamic power consumption. The 'I4N' suffix indicates an industrial temperature grade (-40C to +100C) and lead-free Pb-free plating per RoHS. A Field Programmable Gate Array (FPGA) is a semiconductor device whose digital logic fabric, interconnect, and I/O behaviour can be redefined after manufacturing through a configuration bitstream. Within the broader hierarchy, an FPGA sits above fixed-function ASICs and below software-programmable processors in terms of design flexibility vs deterministic performance. Stratix III L devices specifically trade raw logic capacity for up to 50% lower power than the standard Stratix III E family, making them suited to applications where thermal envelope and total energy are first-order design drivers. Key features of the EP3SL50F780I4N include 47,500 Logic Elements, 2,184,192 user RAM bits distributed across TriMatrix memory blocks, 488 single-ended (or 244 differential) user I/Os, support for up to 12.5 Gbps transceivers via the device family, and integrated DSP blocks for fixed- and floating-point signal processing. The 780-ball FC-FBGA package uses Intel's Flip-Chip land-grid-array construction with a 1.0 mm ball pitch typical for this family, providing high pin density while supporting standard reflow assembly. Architecture depth: Stratix III L devices use a fabric of adaptive logic modules (ALMs), each containing two combinational adaptive LUTs and two registers, fed by a hierarchical routing network with quarter-turn and length-4/16 wires. The integrated memory subsystem uses TriMatrix blocks (MLAB, M9K, M144K) to balance latency and density. Configuration is stored in SRAM and loaded from a flash or via JTAG at power-up. Typical applications include wireless baseband processing, software-defined radio (SDR), high-speed serial protocol bridging (PCIe Gen2, SRIO, CPRI), video broadcast and image processing pipelines, and military/aerospace signal processing where industrial temperature grade and BGA packaging are required. Design consideration: BGA fan-out, power-rail decoupling (0.9V core, 3.3V/2.5V aux, 1.2V transceiver), and configuration-strategy selection (Active Serial vs JTAG) must be planned before PCB layout. This page synthesizes current distributor pricing, drop-in package-equivalent variants within the Stratix III family, and design notes not consolidated in a single manufacturer document.

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EP3SL70F484C2 - 67.5K Logic Elements Stratix III L FPGA | Intel
EP3SL70F484C2

EP3SL70F484C2 - 67.5K Logic Elements Stratix III L FPGA | Intel

The Intel (formerly Altera) EP3SL70F484C2 is a 67,500 logic-element Stratix III L family Field-Programmable Gate Array (FPGA) housed in a 484-ball FineLine BGA (FC-FBGA) package, fabricated on a 65 nm low-power process and rated for a maximum core clock of 600 MHz with a 1.1 V core supply. A Field-Programmable Gate Array (FPGA) is a programmable logic device whose architecture consists of configurable logic blocks (LBs/LABs), programmable interconnect, and a hierarchy of memory and DSP blocks. FPGAs occupy a unique tier between fixed-function ASICs (higher performance, higher NRE, longer time-to-market) and microcontrollers (lower performance, software-defined). The Stratix III family in particular targets high-throughput parallel processing for wireless baseband, video imaging, and high-speed serial interconnect, with the "L" sub-family emphasizing the lowest static power in the Stratix III generation. Key features of the EP3SL70F484C2 include 2,699,264 bits of embedded RAM, 296 user I/O pins, 2,700 logic array blocks (LABs), embedded multipliers for DSP, up to 12 transceivers depending on pinout variant, and dedicated PLL and memory interface circuitry. The "C2" speed grade designates a commercial temperature range (0C to +85C) with a mid-tier Fmax timing closure; "C4" is the slower and "C3" a faster commercial grade. Architecturally, Stratix III devices use Altera's adaptive logic module (ALM) of 8 inputs and a programmable-routing fabric optimized for timing closure at high utilization. The 65 nm process and on-chip voltage regulation allow static power reductions of roughly 50% compared to Stratix II at equivalent logic density. Typical applications include software-defined radio (SDR) baseband, real-time video processing and display pipelines, industrial machine vision, high-speed data acquisition, and protocol bridging such as PCIe Gen1/Gen2 endpoints. The 484-pin FC-FBGA package is suited to mid-density designs where board area permits a 1.0 mm pitch BGA. When designing with the EP3SL70F484C2, choose the C2 grade when your critical path sits between the C3 (fastest) and C4 (slowest) timing corner - this often yields the best price/performance trade-off. Always validate pinout against the Quartus II pin planner before PCB layout, since the 484-ball FC-FBGA is shared across multiple Stratix III density and pinout variants. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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EP3SL70F484C2G - 67.5K LE Stratix III L FPGA FCBGA-484 | Intel
EP3SL70F484C2G

EP3SL70F484C2G - 67.5K LE Stratix III L FPGA FCBGA-484 | Intel

The Intel (Altera) EP3SL70F484C2G is a Stratix III L family Field Programmable Gate Array (FPGA) with 67,500 logic elements, 2,699,264 bits of embedded memory, and 296 user I/Os, fabricated on a 65 nm process and housed in a 484-ball FineLine Ball-Grid Array (FCBGA) package. It is supplied in a commercial 0 °C to +85 °C temperature grade, speed grade 2, and is targeted at high-density, high-throughput digital logic designs where deterministic timing and abundant on-chip memory are required. A Field Programmable Gate Array (FPGA) is a programmable logic device built around a fabric of configurable logic blocks (LBs), programmable routing, and embedded memory, DSP, and clock resources. Stratix III L belongs to the low-power static-power-optimized Stratix III sub-family; it sits in the broader hierarchy of FPGA → programmable logic → logic IC → semiconductor. Unlike fixed-function ASICs, FPGAs allow post-silicon hardware reconfiguration, making them well suited to evolving protocols, parallel datapaths, and hardware acceleration. Key features of the EP3SL70F484C2G include 27,000 Adaptive Logic Modules (ALMs), 2.57 Mbit of embedded RAM, integrated DSP blocks for fixed- and floating-point arithmetic, dedicated high-speed transceivers, and on-chip PLLs for multi-clock domain synthesis. The 484-pin FCBGA package exposes 296 user I/Os and provides a low-inductance, low-impedance power/ground distribution network, which is essential for signal integrity at multi-hundred-megahertz toggle rates. The device operates from a 1.1 V core supply with auxiliary 2.5 V/3.0 V I/O and analog supplies. The 65 nm process node and the Stratix III L "Programmable Power Technology" allow unused logic, routing, and memory blocks to be powered down block-by-block, yielding a static power envelope that is significantly lower than the equivalent Stratix II device at the same utilization. Typical applications include high-performance DSP (radar, software-defined radio, baseband), ASIC prototyping, high-speed serial protocol bridging (PCIe Gen1/Gen2, Serial RapidIO, Gigabit Ethernet, SFI), image and video processing pipelines, and military/aerospace signal processing where the device family supports extended temperature and radiation-tolerant variants. When designing with this device, ensure a 6- to 8-layer PCB with continuous ground planes, matched-length differential pairs for transceiver links, and a power-tree that delivers at least 20 A to the 1.1 V core rail. Quartus II is the supported development environment; design compilation time scales with logic utilization and is roughly 1–2 hours for a fully utilized EP3SL70 design. This page synthesizes distributor pricing, same-package and cross-package equivalents, and practical design notes that go beyond the manufacturer datasheet, giving an engineer a single-page decision view of the EP3SL70F484C2G.

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EP3SL70F484C2N - 67.5K LEs, 296 I/O Stratix III FPGA | Intel
EP3SL70F484C2N

EP3SL70F484C2N - 67.5K LEs, 296 I/O Stratix III FPGA | Intel

The Intel EP3SL70F484C2N is a 65nm Stratix III L-series Field Programmable Gate Array (FPGA) with 67,500 logic elements (LEs), 2,699,264 bits of embedded memory, and 296 user I/Os, housed in a 484-pin flip-chip BGA (FC-FBGA) package. It operates on a 1.1V core supply at up to 600 MHz fabric speed and is qualified for the commercial 0C to +85C temperature grade (suffix C2). An FPGA (Field Programmable Gate Array) is a programmable logic device containing an array of configurable logic blocks (LBs/LEs) interconnected by a programmable routing fabric, surrounded by programmable I/O cells and hardened peripherals such as block RAM, DSP blocks, PLLs, and high-speed transceivers. FPGAs sit in the broader taxonomy: programmable logic -> logic IC -> integrated circuit -> semiconductor. The Stratix III family uses a low-power 65nm process with programmable power-rail gating to reduce static consumption versus prior 90nm Stratix II. Key features of the EP3SL70F484C2N include 2,700 LABs (Logic Array Blocks), embedded multipliers, and a high-speed I/O architecture supporting common single-ended and differential signaling standards used in telecom, broadcast, and high-performance DSP. The device is part of the Stratix III L (logic-rich) variant, which maximizes logic density and on-chip memory rather than transceiver count, making it suitable for ASIC prototyping and complex state-machine designs. The 484-pin FC-FBGA package provides a 1.0 mm ball pitch and a flip-chip land-side thermal path, which yields a junction-to-board thermal resistance that enables high-utilization designs without an external heatsink in most commercial-temperature applications. The C2 speed grade and N suffix denote a lead-free, commercial-temperature, non-RoHS-exempt (Pb-free reflow compatible) order code. Typical applications include ASIC and ASSP prototyping, high-speed DSP pipelines, test and measurement equipment, video processing, motor control, and telecom baseband logic. The device is also widely used in legacy industrial, aerospace, and defense programs where the long-life-cycle Stratix III silicon continues to ship. Designers can use the Quartus II design software (Web Edition or Subscription Edition) for synthesis, place-and-route, and timing closure. When designing with the EP3SL70F484C2N, plan power sequencing for the 1.1V core and 2.5V/3.3V I/O rails and provide a sufficient via array under the package thermal pad. Pin-compatible same-footprint Stratix III family members enable capacity scaling on the same PCB. This page synthesizes Stratix III family parametric data, distributor availability across DigiKey/Mouser/Octopart, and FPGA design considerations not consolidated in a single vendor document.

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EP3SL70F484C3 - Stratix III L FPGA, 67.5K LE, 484-FBGA | Altera
EP3SL70F484C3

EP3SL70F484C3 - Stratix III L FPGA, 67.5K LE, 484-FBGA | Altera

The Altera (Intel) EP3SL70F484C3 is a Stratix III L family Field Programmable Gate Array (FPGA) housed in a 484-ball FineLine BGA (FBGA) package, offering 67,500 logic elements and 296 user I/Os in a 65 nm process technology. The device integrates 2,699,264 bits of embedded memory and operates with a core voltage of 1.1 V at internal clock frequencies up to 500-800 MHz, providing high-density programmable logic for high-performance digital designs. A Field Programmable Gate Array (FPGA) is a type of programmable logic device (PLD) that contains an array of configurable logic blocks (CLBs) interconnected by programmable routing fabric. FPGAs sit within the broader hierarchy of programmable logic (FPGA -> programmable logic -> logic IC -> integrated circuit -> semiconductor), and are used to implement custom digital logic without fabricating an ASIC, enabling rapid prototyping and design iteration. Key features include 67,500 logic elements, 2,699,264 embedded memory bits, 296 user I/O pins, support for multiple I/O standards (LVDS, LVTTL, LVCMOS, SSTL, HSTL), dedicated DSP blocks for high-speed arithmetic, and on-chip transceivers optimized for memory interfaces and high-speed serial connectivity. The 1.1 V core voltage and 65 nm process technology deliver favorable power-per-gate ratios compared to earlier Stratix generations. Architecturally, the Stratix III L family uses Altera's adaptive logic modules (ALMs) and a multi-track routing interconnect optimized for timing closure at high frequencies. The -C3 speed grade indicates a moderate speed/power balance suitable for commercial-temperature applications (0C to +85C). The 484-pin FBGA package provides high I/O density in a relatively compact 23 x 23 mm footprint suitable for high-performance PCB designs. Typical applications include high-speed data acquisition systems, telecommunications backplane interfaces, software-defined radio (SDR) baseband processing, ASIC prototyping, video processing and encoding, and high-performance computing accelerators. The large logic capacity and memory make this device well-suited for designs that previously required mid-range ASICs. Designers should pay attention to the Stratix III power planning flow (PowerPlay) and use Altera's Quartus II toolchain for synthesis, place-and-route, and timing closure. The -C3 speed grade has tighter timing margins than -C4 but offers lower power; for designs targeting maximum performance, evaluate -I3 or -I4 industrial grades. This page synthesizes distributor pricing from authorized sources, drop-in same-package alternatives within the Stratix III L family, and practical FPGA design considerations not consolidated in any single manufacturer document.

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EP3SL70F484C3G - Stratix III 67.5K LE FPGA 484-FCBGA | Intel
EP3SL70F484C3G

EP3SL70F484C3G - Stratix III 67.5K LE FPGA 484-FCBGA | Intel

The Intel EP3SL70F484C3G is a Stratix III L-series field-programmable gate array (FPGA) with 67,500 logic elements, 2,699,264 bits of embedded memory, and 296 user I/Os, packaged in a 484-ball FCBGA. It operates from a 1.1 V core supply and is specified over the commercial 0 C to +85 C temperature range with a -3 speed grade. A Field Programmable Gate Array (FPGA) is a semiconductor integrated circuit composed of configurable logic blocks (CLBs), programmable interconnect, and dedicated hard IP such as memory blocks, DSP slices, transceivers, and PLLs. FPGAs occupy the broader taxonomy of programmable logic devices -> logic ICs -> integrated circuits -> semiconductors. Unlike fixed-function ASICs, FPGAs are reprogrammed in the field to implement custom digital signal processing, packet processing, glue logic, and compute acceleration. The Stratix III family sits in the high-performance tier of Intel (formerly Altera) FPGAs, optimized for logic density, embedded memory bandwidth, and high-speed serial transceivers. Key features of this specific device include 27,000 adaptive logic modules (ALMs), 2.57 Mbit of embedded block RAM, and the Stratix III Programmable Power Technology that reduces dynamic power by selectively gating unused logic and routing resources. The device supports industry-standard LVDS, LVTTL, LVCMOS, and SSTL I/O standards, along with hard PCI Express Gen1 endpoints and external memory interfaces to DDR3, DDR2, and QDRII+ SRAM. The architecture uses a 40 nm process node with a 9-bit ALM as the fundamental logic element. Each ALM contains two adaptive LUTs, two dedicated adders, four registers, and fracturable carry chains, allowing efficient implementation of both arithmetic-intensive DSP and bit-oriented control logic. The MultiTrack interconnect and TriMatrix memory structure deliver high utilization at clock rates above 300 MHz on typical designs. Typical applications include high-end ASIC prototyping, telecom line-card packet processing, military radar signal processing, medical imaging pre-processing, and broadcast video format conversion. The 484-ball FCBGA footprint supports PCB designs that target Stratix III logic density while preserving routing headroom. When designing with the EP3SL70F484C3G, plan power decoupling with a 1.0 uF bulk capacitor per VCC pin pair and a 0.1 uF decoupling cap on every supply ball. Maintain controlled-impedance routing on all high-speed serial links and place differential pairs within 5 mil length-matching tolerance. This page synthesizes distributor inventory, Stratix III speed-grade options, and same-package drop-in alternatives drawn from the same family and competitor FPGAs, providing decision support not found in the manufacturer datasheet alone.

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EP3SL70F484C4 - Stratix III L FPGA 67500 LE | Intel
EP3SL70F484C4

EP3SL70F484C4 - Stratix III L FPGA 67500 LE | Intel

The Intel EP3SL70F484C4 is a Stratix III L Field-Programmable Gate Array (FPGA) with 67,500 logic elements, 2,699,264 bits of embedded RAM, and 296 user I/O pins, delivered in a lead-free 484-ball FC-FBGA (BGA-484) package and specified for 0°C to 85°C commercial operation. This 65 nm, 1.1 V core device is a mid-density FPGA platform intended for parallel logic, memory, and I/O intensive designs where speed-grade and packaging availability matter. An FPGA is an integrated circuit whose logic fabric can be configured after manufacturing, allowing engineers to implement custom digital logic without committing to an ASIC. FPGAs sit within the programmable logic device hierarchy below ASICs but above simple CPLDs. The EP3SL70F484C4 forms part of the Stratix III L family and is optimized for general-purpose logic from wireline access equipment to broadcast video processing. Key features of the EP3SL70F484C4 include 67,500 logic elements for mid-density systems, 2,699,264 RAM bits for buffering and data storage, and 296 user I/O pins that can interface to multiple single-ended and differential signaling standards. The 484-ball FC-FBGA package provides a compact footprint while still exposing enough I/O for wide parallel buses, DDR memories, and external commodity interfaces. Distributor listings report this device as lead-free, and FPGAkey records a 1.1 V core supply voltage on a 65 nm process. Although this part has no embedded high-speed serializer/deserializer transceivers in the logic-only L configuration, its logic density, embedded memory, and I/O count make it effective for controller, bridging, preprocessing, and protocol handling tasks. The C4 ordering bin in the Altera/Intel nomenclature denotes a commercial-temperature, speed-grade-sorted variant used for lower-cost applications where the higher speed grade is not required. Typical applications include indoor telecom/network line cards, broadcast video processing chains, industrial automation controllers, medical imaging preprocessing, test and measurement instruments, and FPGA prototyping platforms. The 0°C to 85°C commercial temperature range is suitable for indoor, climate-controlled equipment but not for unheated automotive or extended-ambient deployments. When using EP3SL70F484C4, designers must remember that an FPGA is volatile: configuration must be loaded from an external EPCS/SPI flash or through JTAG on every power-up. Power supply decoupling on the 1.1 V core rail and per-bank I/O supplies is essential for stable timing closure and reliable programming. This page synthesizes distributor pricing, stock data, drop-in alternatives, and practical design notes not found in the manufacturer datasheet. It is intended for engineers comparing EP3SL70F484C4 with other 484-ball Stratix III L derivatives before PCB layout and procurement.

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EP3SL70F484C4G - Stratix III 67.5K LE FPGA, 484-FCBGA | Intel
EP3SL70F484C4G

EP3SL70F484C4G - Stratix III 67.5K LE FPGA, 484-FCBGA | Intel

The Intel (formerly Altera) EP3SL70F484C4G is a Stratix III L family Field Programmable Gate Array (FPGA) with 67,500 logic elements, 2,699,264 bits of embedded memory, and 296 user I/Os, housed in a 484-ball FineLine BGA (FCBGA) package. It operates from a 1.1 V core supply and is rated for the commercial 0C to +85C temperature range. The 'C4' speed grade denotes a medium-speed timing bin within the Stratix III family, while the trailing 'G' indicates lead-free / RoHS-compliant ball finish. A Field Programmable Gate Array (FPGA) is a reconfigurable semiconductor that combines programmable logic blocks (logic elements / adaptive logic modules), dedicated memory blocks, DSP blocks, and high-speed serial transceivers on a single die. FPGAs sit at the top of the programmable logic hierarchy (programmable logic device -> CPLD -> FPGA -> SoC FPGA) and are widely used for parallel data-path processing, high-speed protocol bridging, and ASIC prototyping before tape-out. The Stratix III family was built on TSMC's 40 nm process and represented Intel/Altera's high-density, low-power flagship line circa 2008-2010. Key features of the EP3SL70F484C4G include 27,000 adaptive logic modules (ALMs), 2.57 Mbit of embedded RAM, and up to 8 transceivers depending on the configuration. The 484-pin FCBGA package supports Stratix III's rich I/O fabric including LVDS, LVTTL, SSTL, and HSTL I/O standards, alongside dedicated PLL and clock-tree resources. Integrated configuration circuitry supports multiple modes including JTAG, passive serial, and fast passive parallel. At the architectural level, the Stratix III L device integrates programmable logic tiles (each ALM contains 8 LUTs and associated carry chains), TriMatrix embedded memory blocks (MLAB, M9K, M144K), DSP blocks for 9x9, 18x18, and 36x36 multipliers, and dedicated transceivers that can operate at multi-gigabit data rates. The '70' suffix in the part number designates the device density (LE count) within the Stratix III L family. Typical applications include high-performance digital signal processing, telecommunication infrastructure, ASIC prototyping, broadcast video processing, and high-speed serial protocol bridging. Stratix III devices are also used in defense and aerospace applications requiring high logic density with deterministic timing closure. When designing with this part, careful attention must be paid to power-rail sequencing (1.1 V core plus multiple I/O and auxiliary supplies), JTAG configuration chain integrity, and thermal management - despite the 40 nm process node, large Stratix III designs can exceed 10 W and require airflow or heatsinking at industrial temperatures. This page synthesizes distributor pricing, same-family Stratix III drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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EP3SL70F484C4L - Stratix III L FPGA, 67.5K LE, 484-FCBGA | Intel
EP3SL70F484C4L

EP3SL70F484C4L - Stratix III L FPGA, 67.5K LE, 484-FCBGA | Intel

The Intel (formerly Altera) EP3SL70F484C4L is a Stratix III L family Field Programmable Gate Array (FPGA) fabricated on a 65 nm process, delivering 67,500 logic elements, 2,699,264 bits of embedded memory, and 296 user I/Os in a 484-ball FC-FBGA package. The device operates at a core voltage of 0.9 V and supports a maximum toggle speed of 375 MHz, with 2,700 logic array blocks (LABs) for high-density parallel logic implementation. An FPGA (Field Programmable Gate Array) is a programmable semiconductor device consisting of an array of configurable logic blocks (CLBs), programmable interconnect, and dedicated hardware such as block RAM, DSP blocks, and high-speed transceivers. FPGAs sit in the broader hierarchy of programmable logic devices (PLDs) → programmable logic → semiconductor IC, and offer parallel processing capability that microcontrollers and DSPs cannot match. The Stratix III L series targets ASIC prototyping, high-performance DSP, and communication infrastructure workloads where deterministic, parallel hardware acceleration is required. Key features of the EP3SL70F484C4L include 67,500 logic elements, 2,699,264 bits of embedded memory, 2,700 LABs, 296 user I/Os, 375 MHz maximum operating frequency, 0.9 V core supply, and a 484-ball Fine-pitch Chip-Scale Ball Grid Array (FC-FBGA) package. The Stratix III L family is engineered for low static and dynamic power consumption relative to the original Stratix III, making it suitable for thermally constrained embedded systems. The device integrates programmable logic fabric with rich on-chip memory and DSP blocks, enabling designers to implement custom parallel datapaths, complex state machines, and high-throughput signal-processing pipelines. Configuration is stored in SRAM cells that can be re-loaded at power-up from an external flash or configuration device, supporting in-field design upgrades and multi-bitstream workflows. Typical applications include ASIC prototyping and emulation, high-performance DSP pipelines, wireline communication infrastructure, military and aerospace signal processing, and test and measurement equipment. The 484-FCBGA package offers a compact footprint for high I/O count designs while supporting the power-delivery requirements of high-utilization workloads. When designing with the EP3SL70F484C4L, ensure the PCB has sufficient decoupling capacitors placed close to each power pin, and that the 484-ball BGA footprint is laid out with manufacturer-recommended escape routing. Designers should also note that the Stratix III family is approaching end-of-life (NRND/last-time-buy status), so long-production programs should plan second-source or migration strategies. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet.

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EP3SL70F484C4LG - Stratix III L FPGA, 67.5K LE, 484-FBGA | Intel
EP3SL70F484C4LG

EP3SL70F484C4LG - Stratix III L FPGA, 67.5K LE, 484-FBGA | Intel

The Intel (formerly Altera) EP3SL70F484C4LG is a low-power member of the Stratix III L FPGA family, integrating 67,500 logic elements, 2,699,264 bits of embedded memory (approximately 2.57 Mbit), and 296 user I/O in a 484-pin flip-chip BGA package. Built on a 1.1 V core, 40 nm process technology, the device targets high-performance digital logic designs that demand abundant memory bandwidth, DSP throughput, and transceiver-based serial connectivity without exceeding the power envelope of the original Stratix III family. According to the Altera/Intel Stratix III Device Handbook, the 'SL' suffix denotes the low-static-power variant optimized for thermally constrained applications such as wireline backhaul, software-defined radio, and high-end test & measurement. An FPGA (Field-Programmable Gate Array) is a programmable logic device that combines configurable logic blocks (LBs), programmable routing, dedicated DSP blocks, on-chip RAM, and high-speed transceiver or general-purpose I/O into a single monolithic silicon die. Within the broader taxonomy, the EP3SL70F484C4LG belongs to the hierarchy FPGA -> programmable logic -> logic IC -> digital semiconductor, and represents the high-density, low-power node of the Stratix III generation, which itself precedes Stratix IV/V in Intel's programmable-logic roadmap. Key features include 27,000 adaptive logic modules (ALMs) - the basic building block of Stratix III architecture - 2.57 Mbit of embedded memory organized into M9K/M144K blocks, dedicated variable-precision DSP blocks for high-throughput arithmetic, and up to 296 user I/O supporting LVDS, LVTTL, LVCMOS, SSTL, and HSTL I/O standards. The FBGA-484 package exposes the full I/O count of this device variant and supports industrial operating temperatures with a commercial-grade 0 C to +85 C range as shipped under the speed grade 4 ordering code. Typical applications include high-speed digital signal processing in software-defined radio, channel cards in wireless infrastructure, ASIC prototyping, high-resolution video processing, and pre-silicon verification platforms. Compared with the higher-cost Stratix III GX/GT variants, the 'L' family omits the multi-gigabit transceivers to reduce both static and dynamic power while preserving the logic, memory, and DSP fabric. When designing with this part, engineers must supply a 1.1 V core rail and a 2.5 V/3.3 V I/O auxiliary rail, ensure JTAG access is preserved, and verify PCB escape routing for the 484-ball flip-chip BGA. This page synthesizes distributor pricing, drop-in alternatives from the same Stratix III family, and practical design considerations not collated in the manufacturer handbook.

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EP3SL70F484C4LN - Stratix III L FPGA 67.5K LE | Intel | 484-FBGA
EP3SL70F484C4LN

EP3SL70F484C4LN - Stratix III L FPGA 67.5K LE | Intel | 484-FBGA

The Intel (formerly Altera) EP3SL70F484C4LN is a Stratix III L family Field Programmable Gate Array (FPGA) IC with 67,500 logic elements, 2,699,264 bits of embedded memory, 296 user I/Os, and 2,700 Logic Array Blocks (LABs), housed in a 484-ball FineLine BGA (FBGA) package. The device is built on a 65 nm TSMC low-power process node and supports core voltages of 0.9 V for the high-performance Stratix III L variant, with a maximum internal clock frequency of 375 MHz. A Field Programmable Gate Array (FPGA) is a reprogrammable semiconductor device belonging to the programmable logic hierarchy: FPGA -> Programmable Logic Device (PLD) -> Logic IC -> Integrated Circuit. Unlike fixed-function ASICs, FPGAs implement arbitrary digital logic through configurable logic elements (LEs), embedded memory blocks (M9K/M144K), DSP blocks, and high-speed transceivers, all wired via programmable routing. The Stratix III L family specifically targets logic-dense, low-power designs where TDP budgets matter, making it a tier between the original Stratix III and the later Stratix IV/IV GX families. Key features include 67,500 logic elements (LEs), 2,699,264 embedded memory bits organized as M9K/M144K blocks, up to 12 transceiver channels in related variants, dedicated DSP blocks for high-throughput arithmetic, and 296 user I/Os supporting multiple I/O standards (LVDS, LVTTL, LVCMOS, HSTL, SSTL). The 484-ball FBGA package supports high-density board routing while keeping the die-to-PCB inductance low for 375 MHz operation. The device is offered in the C4 speed grade (commercial, -4) with the L suffix indicating a low-power static power sub-variant and the N suffix indicating a lead-free, RoHS-compliant finish. From an architectural standpoint, the Stratix III L uses an Adaptive Logic Module (ALM) with 8-input fracturable look-up tables (LUTs), enabling higher logic density per LE than prior Stratix generations. The Programmable Power Technology allows unused logic to enter a near-zero static power state, which is the defining feature of the L suffix versus the standard Stratix III. Typical applications include telecom baseband processing, military/aerospace signal processing, ASIC prototyping, high-speed data acquisition front-ends, and broadcast video routing fabrics. Its logic and memory balance also suits high-performance medical imaging pre-processing and radar front-end signal conditioning. When designing with the EP3SL70F484C4LN, use the Quartus II design suite (version 13.0 or earlier; later Quartus versions require legacy device support). Decoupling requires bulk 0.1 uF + 10 uF capacitors near every VCC/VCCIO/G pin group, and the 484-FBGA land pattern demands 4-layer minimum PCB stack-up with via-in-pad recommended for full BGA fanout. This page synthesizes distributor pricing, drop-in alternatives from the Stratix III L family, and practical design notes not found in the manufacturer datasheet.

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EP3SL70F484C4N - Stratix III L FPGA 67.5K LE FBGA-484 | Intel
EP3SL70F484C4N

EP3SL70F484C4N - Stratix III L FPGA 67.5K LE FBGA-484 | Intel

The Intel (formerly Altera) EP3SL70F484C4N is a high-density, low-power Stratix III L family Field-Programmable Gate Array (FPGA) housed in a 484-ball FineLine BGA (FCBGA) package with 296 user I/Os. The device integrates 67,500 logic elements, 2,699,264 bits of embedded memory, and 2,700 LABs/CLBs, fabricated on a 65 nm TSMC process and powered by a 1.1 V core supply. Speed grade -C4 denotes a commercial-temperature, mid-speed bin targeted at cost-sensitive, performance-balanced designs. What is a Stratix III FPGA? Stratix III is Intel's third-generation high-performance FPGA family, succeeding Stratix II and built on a 65 nm low-k dielectric process with dedicated hard IP blocks such as MLABs, M9K/M144K block RAMs, embedded DSP blocks, and multi-gigabit transceivers on higher-density members. The 'L' sub-family specifically optimizes the logic/memory/transceiver mix for logic-intensive, lower-static-power designs and is widely used in telecom line cards, broadcast video processing, and military-aerospace DSP. FPGAs occupy the top tier of programmable logic, sitting above CPLDs and standard logic ICs in the digital-semiconductor hierarchy. Key features include 67,5K logic elements arranged in 2,700 LABs, 2.7 Mbit embedded block RAM with true dual-port operation, dedicated 18x18 multipliers supporting up to 384 GMACs DSP performance, eight fractional PLLs with programmable bandwidth, and 296 user I/Os supporting LVDS, LVTTL, LVCMOS, SSTL, and HSTL I/O standards. A high-speed SERDES block (where equipped) and integrated PCI Express hard IP simplify interface design, while configuration is supported via JTAG, passive serial, fast passive parallel, and external host bus modes. Architecture depth: The 65 nm process enables a stitched transistor fabric with dedicated routing switch matrices, octagonal interconnect, and tri-matrix memory that can be configured as MLAB (640-bit) or M9K (9 Kbit) blocks. Periphery I/O elements (IOEs) support up to 1.6 Gbps LVDS performance on this generation, and the device embeds up to 12 clock networks with regional and global skew management. Power is managed via programmable on-chip voltage regulators tied to the PowerPlay early-power estimator tool. Typical applications include wireline telecom backplane multiplexing, military radar signal processing, high-end medical imaging front-ends, ASIC prototyping, and broadcast video format conversion. Design entry is via Intel Quartus II (legacy) or Quartus Prime, with IP cores for DDR2/DDR3 controllers, PCIe Gen1, and 10 Gigabit Ethernet MACs available out-of-the-box. When laying out a board, allocate a continuous GND plane under the BGA and follow Intel's via-in-pad microvia guidelines for the 1.0 mm pitch FBGA footprint. Design consideration: With 484 balls on a 1.0 mm pitch, four to six PCB layers with sequential lamination are recommended; ensure proper decoupling with 0402/0201 ceramics placed within 2 mm of each power ball. Total power consumption scales with toggle rate - estimate early using PowerPlay to size regulators and thermal solution. This page synthesizes distributor pricing, drop-in alternatives from the same Stratix III family, and practical design notes not found on the manufacturer product page alone.

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EP3SL70F484I3 - Stratix III L FPGA, 67.5K LE, 484-FBGA | Intel
EP3SL70F484I3

EP3SL70F484I3 - Stratix III L FPGA, 67.5K LE, 484-FBGA | Intel

The Intel EP3SL70F484I3 is a high-density, low-power member of the Stratix III L FPGA family fabricated on TSMC's 40 nm process, providing 67,500 logic elements, 2,699,264 bits of embedded memory, and 296 user I/Os in a 484-ball Flip-Chip BGA package. The "L" suffix denotes the logic-optimized variant that trades some DSP and transceiver capability for lower static power versus the Stratix III E family, while the "I3" speed/temperature grade delivers industrial temperature range (-40C to +100C) at a moderate -3 speed bin. The device integrates 2,700 Logic Array Blocks (LABs) and 384 embedded 18x18 multipliers, making it well suited for DSP-heavy signal processing in test equipment, medical imaging, and high-performance wireline backplanes. The Stratix III L is a SRAM-based FPGA (Field Programmable Gate Array) belonging to the broader category of programmable logic devices (PLD), which also includes CPLDs and one-time-programmable devices. Within the power-management hierarchy of a digital system, the FPGA sits below the DC-DC converters and LDOs that feed its core and I/O rails (typically 0.86 V VCC, 1.1 V VCCPT, 2.5 V/3.3 V I/O) and above the application logic it implements. Compared with ASICs, Stratix III devices trade mask NRE cost for design flexibility, in-system re-programmability, and accelerated time-to-market for low-volume or evolving standards. Key features of EP3SL70F484I3 include 384 DSP blocks (18x18 multipliers), 12 transceivers at up to 3.75 Gbps (per Stratix III L family specifications), Programmable Power Technology (ppt) for fine-grained static power reduction, and hard memory controllers supporting DDR, DDR2, DDR3, QDRII, and RLDRAM interfaces. The 484-FBGA package uses lead-free SAC405 balls on a 1.0 mm pitch and is rated for an extended industrial operating envelope. Architecture-wise, the device uses ALMs (Adaptive Logic Modules) of 8 inputs each, organized into LABs of 10 ALMs, with routing fabric driven by Quartus II synthesis. Configuration is via fast passive parallel, fast active serial, or JTAG, with bitstream encryption and AES support available on the family. The die integrates 8 PLLs (4 enhanced PLLs and 4 fast PLLs) and 648 Kbits of distributed memory, which complements the 2,699,264 bits of block RAM (M9K and M144K blocks). Typical applications include high-speed data acquisition, software-defined radio front-ends, digital video broadcast equipment, multi-channel telecom line cards, and ASIC-prototyping platforms where 67.5K LEs provide sufficient headroom for full-system emulation. The Stratix III L family's low static power also makes it attractive for thermally constrained embedded systems such as radar array processors and industrial machine-vision pipelines. When designing with the EP3SL70F484I3, plan for a multi-rail power tree (0.86 V core via dedicated DC-DC, plus 2.5/3.3 V I/O via an LDO) and place at least eight decoupling capacitors around the BGA perimeter per Quartus II pin connection guidelines. Use Altera's PowerPlay early power estimator before place-and-route to confirm thermal envelope, and consider de-rating I/O toggle rates when fanning out LVDS pairs above 625 Mbps. This page synthesizes Stratix III L family specifications, Octopart distributor pricing, same-brand speed/package drop-in alternatives, and practical Quartus II design notes that complement the official device handbook.

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EP3SL70F484I3G - Stratix III L FPGA 67.5K LE, 484-FCBGA | Intel / Altera
EP3SL70F484I3G

EP3SL70F484I3G - Stratix III L FPGA 67.5K LE, 484-FCBGA | Intel / Altera

The Intel / Altera EP3SL70F484I3G is a Stratix® III L high-performance, low-power FPGA delivering 67,500 logic elements, 2,699,264 memory bits, and 296 user I/O pins in a 484-ball FCBGA package. Built on a 40nm process with transceiver-rich variants and adaptive logic modules (ALMs), the device integrates up to 24 transceivers operating at data rates suitable for chip-to-chip and backplane serial links. The "I3" speed grade and industrial temperature range support demanding timing budgets in -40C to +100C environments. A Field Programmable Gate Array (FPGA) is a reprogrammable semiconductor device whose logic fabric is configured via an SRAM or flash bitstream, enabling parallel hardware acceleration of algorithms that would be too slow on a CPU. The Stratix III family is positioned within Altera's high-end programmable logic portfolio, sitting above Cyclone low-cost FPGAs and below the Stratix V/Stratix 10 flagship generations. It addresses mid- to high-density designs in communications, signal processing, and embedded compute. Key differentiating specifications of the EP3SL70F484I3G include its 24 transceiver channels, dedicated DSP blocks for high-throughput fixed- and floating-point operations, on-chip triplicated register and lockstep structures for single-event upset mitigation, and support for external memory interfaces including DDR3 SDRAM up to 800 MHz. The 484-pin FCBGA package provides a high-density ball grid that supports the wide I/O count and signal-integrity demands of multi-gigabit serial links. Architecturally, the Stratix III L family uses a low-power variant of the Stratix III fabric with reduced static power consumption and 1.0V core operation, while retaining the same ALM architecture, MLAB memory blocks, and 8T/9T SRAM. Designers can compile bitstreams in Altera Quartus II and target a broad IP library for memory controllers, Ethernet MACs, PCIe Gen1/Gen2, and DSP kernels. Typical applications include wireless baseband DSP, serial backplane aggregation, ASIC prototyping, test and measurement instrumentation, and high-speed serial protocol bridging. Designers choose Stratix III L when they need a balanced mix of logic density, transceiver bandwidth, and power efficiency. When designing with this device, follow the Altera Stratix III handbook guidelines for PCB power-plane stacking, transceiver channel routing, and decoupling - the FCBGA substrate demands matched-length differential pairs and a controlled-impedance stackup. Configuration via JTAG or serial flash is supported. This page synthesizes distributor pricing, drop-in alternatives within the Stratix III family, and practical design notes not found in the manufacturer datasheet alone.

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EP3SL70F484I3N - 67.5K LE Stratix III L FPGA, 484-FBGA | Intel
EP3SL70F484I3N

EP3SL70F484I3N - 67.5K LE Stratix III L FPGA, 484-FBGA | Intel

The Intel EP3SL70F484I3N is a high-density, low-power member of the Stratix III L FPGA family, integrating 67,500 logic elements and 2,699,264 bits of embedded RAM in a 484-ball FineLine BGA package. It is a 296-I/O device fabricated on a 40 nm process, with 2,700 LABs/CLBs, 24 DSP blocks, and a maximum user I/O count of 296. The 'I3' suffix indicates the -40C to +100C industrial temperature grade. An FPGA (Field-Programmable Gate Array) is a type of programmable logic IC that allows designers to configure digital logic blocks and interconnects after manufacture. The Stratix III L family sits in the high-performance, low-power segment of Intel's (formerly Altera's) programmable logic hierarchy: FPGA -> programmable logic -> ASIC alternative -> digital IC. The 'L' sub-family specifically trades absolute peak performance for substantially lower static and dynamic power versus the Stratix III base series, enabling higher logic density at constrained thermal envelopes. Key features include up to 296 user I/Os, support for external memory interfaces including DDR3 with dedicated hard IP, up to 24 DSP blocks for high-throughput signal processing, and embedded transceivers in higher density variants. The 484-FBGA package (23 mm x 23 mm body) exposes the full I/O bank count while keeping board area manageable for high-performance designs. Cyclone and Stratix families remain widely supported by the Quartus II design software. Architecturally, the EP3SL70F484I3N leverages an adaptive logic module (ALM) of 8-input fracturable look-up tables combined with dedicated MLAB memory blocks. The Programmable Power Technology allows unused logic and routing to be powered down automatically, which is the principal mechanism behind the 'L' family's power advantage. Hard memory controllers and DSP blocks improve both performance and energy efficiency compared with soft implementations. Typical applications include high-speed digital signal processing, telecom baseband and protocol bridging, software-defined radio front-ends, industrial vision and machine control, and high-throughput data acquisition. For engineers transitioning from ASIC designs, the Stratix III L family offers a familiar Quartus tool flow while retaining the NRE cost benefit of FPGA. Choose this part when you need Stratix III L-class resources in the 484-ball BGA package. When designing with this device, confirm the Quartus II device support status because Stratix III is now in its mature-support lifecycle and newer Intel Cyclone 10 or Stratix 10 families offer lower power at comparable logic densities. Pay attention to the I/O bank supply sequencing required by the device and reference the Intel pinout file for the 484-FBGA package before PCB layout. This page synthesizes distributor pricing, drop-in alternatives from the same Stratix III L family, and practical design notes that are not collected together in the manufacturer datasheet, giving procurement and engineering teams a single decision-ready reference.

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EP3SL70F484I4 - Stratix III L FPGA, 67.5K LE, 484-FBGA | Intel
EP3SL70F484I4

EP3SL70F484I4 - Stratix III L FPGA, 67.5K LE, 484-FBGA | Intel

The Intel (formerly Altera) EP3SL70F484I4 is a member of the Stratix III L FPGA family, delivering 67,500 logic elements and 2,699,264 bits of embedded memory in a 484-ball fine-pitch BGA (FCBGA) package. The device is fabricated on a 40 nm TSMC process and combines high logic density, abundant block RAM, and DSP-rich architecture with industrial-grade temperature support. As a logic-array device in the Programmable Logic Device (PLD) hierarchy, it belongs to the broader category of digital ASIC-replacement silicon that sits between fixed-function ASSPs and full-custom ICs. An FPGA (Field Programmable Gate Array) is a digital integrated circuit composed of configurable logic blocks, routing channels, and dedicated hard IP blocks that the designer programs after manufacture. Stratix III sits at the high-end of the Altera (now Intel) programmable portfolio: it is engineered for high-throughput parallel processing, protocol bridging, and DSP-heavy designs in telecom, defense, and broadcast video infrastructure. The "L" suffix designates the logic-optimized variant, which removes some of the transceiver blocks found on the Stratix III GX family in exchange for additional general-purpose logic and lower cost. Key features of the EP3SL70F484I4 include 2,700 Logic Array Blocks (LABs), up to 488 embedded multipliers (18x18), 8 transceiver-style PLLs plus 16 general-purpose PLLs for clock synthesis, 1.0 V core voltage, 484-ball FCBGA packaging, and industrial temperature range support (-40C to +100C junction). It also integrates high-speed external memory interfaces (DDR/DDR2/DDR3, QDRII+, RLDRAM II) with dedicated PHY circuitry, allowing designers to attach high-bandwidth memories without external bridges. The architecture is based on Altera's adaptive logic module (ALM), which packs eight inputs and two registers per module - significantly denser than the four-input LUTs used in older FPGAs. Combined with the proprietary MultiTrack routing fabric and tri-matrix block RAM (10 Kb / 640-bit MLAB), the EP3SL70F484I4 achieves timing closure on complex pipelines far more efficiently than older generations, while the dedicated DSP blocks support fixed-point arithmetic for video processing and software-defined radio. Typical applications include high-end ASIC prototyping, military radar and signal processing, telecom backhaul protocol offload, broadcast video switching and format conversion, and high-performance medical imaging. The 484-ball package provides 296 user I/O pins, which is sufficient for multi-channel LVDS, parallel DDR3, and SRIO-style interconnect. Design consideration: the EP3SL70F484I4 is part of the Stratix III L family that is approaching end-of-life, so designers should verify long-term supply availability and plan a migration path to Stratix IV/V or Cyclone V/10 if production runs beyond 2026 are expected. This page synthesizes distributor pricing, drop-in Stratix III/IV alternatives, and practical design notes not found in the manufacturer datasheet alone - giving engineers a single decision-ready reference.

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EP3SL70F484I4G - Stratix III L FPGA, 67.5K LE, 484-FBGA | Intel
EP3SL70F484I4G

EP3SL70F484I4G - Stratix III L FPGA, 67.5K LE, 484-FBGA | Intel

The Intel EP3SL70F484I4G is a high-density, low-power Stratix® III L Field Programmable Gate Array (FPGA) IC built on a 65 nm process and offered in a 484-ball FineLine BGA (FC-FBGA) package. It integrates 67,500 logic elements (LE) backed by 27,000 adaptive logic modules (ALM), 2.57 Mbit of embedded memory, and 296 user I/O pins operating from a 1.1 V core supply. The device also embeds 48 digital signal processing (DSP) blocks and 8 phase-locked loops (PLL) for high-performance DSP and high-speed serial I/O design. An FPGA (Field Programmable Gate Array) is a semiconductor device whose logic fabric, routing, and I/O can be reconfigured after manufacture. Stratix® III L sits within the FPGA taxonomy as a high-end, low-static-power variant of Altera's (now Intel) Stratix III family, optimized for applications that demand high logic density, abundant DSP, and low dynamic power. The 'SL' (Stratix III Low-power) family extends the Stratix III generation with programmable power technology that reduces static consumption while preserving performance. Key features of the EP3SL70F484I4G include 296 user I/Os that support multiple I/O standards (LVDS, LVTTL, LVCMOS, HSTL, SSTL), 2.57 Mbit of embedded SRAM organized as M9K/M144K blocks, 48 DSP blocks for fixed- and floating-point arithmetic, and 8 PLLs with fractional-N support. The 484-ball FC-FBGA package is a wire-bond-free flip-chip BGA that improves signal integrity and thermal dissipation, making it well suited for high-speed parallel buses and serializer/deserializer (SerDes) lanes. The 65 nm CMOS process and Stratix III architecture deliver an excellent logic-to-power ratio for compute-intensive workloads. Programmable Power Technology enables unused logic and routing to be powered down automatically, while dedicated hard IP blocks (memory, DSP, PLLs, transceivers on higher-density members) accelerate common functions. The result is a flexible platform for ASIC prototyping, high-throughput data acquisition, and real-time signal processing. Typical applications for this part include high-performance digital signal processing (radar, beamforming, software-defined radio), high-speed video and image processing pipelines, ASIC prototyping and emulation, industrial test and measurement equipment, and high-speed data-acquisition front ends. The 484-ball FC-FBGA package and industrial-grade temperature range (-40C to +100C) also suit telecom and aerospace ground systems. When designing with the EP3SL70F484I4G, ensure a multi-layer PCB with continuous power and ground planes is used to maintain signal integrity for the LVDS pairs and high-speed clocks. Decouple each core and I/O bank with a combination of bulk and high-frequency ceramic capacitors placed as close to the balls as physically possible, and follow Altera's pin-out and power-sequencing guidelines in the device handbook to avoid in-rush latch-up at power-up. This page synthesizes distributor pricing, drop-in package-compatible alternatives, and practical design notes that complement (but do not replace) the official Altera/Intel Stratix III device handbook.

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