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EP2C35F484I7N - Cyclone II FPGA 33K Logic Elements FBGA-484 | Intel / Altera
EP2C35F484I7N

EP2C35F484I7N - Cyclone II FPGA 33K Logic Elements FBGA-484 | Intel / Altera

The Intel / Altera EP2C35F484I7N is a Cyclone II family Field Programmable Gate Array (FPGA) delivering 33,216 logic elements, 484 maximum user I/O pins, and 483,840 total RAM bits in a 484-ball FineLine BGA (FBGA-484) package. It is fabricated on a low-power 90 nm CMOS process and operates across an industrial temperature range of -40C to +85C (the I7 speed/temperature grade). The device integrates up to 150 embedded 18 x 18 multipliers, supporting high-performance yet low-cost DSP implementations. A Field Programmable Gate Array (FPGA) is a semiconductor device built around a matrix of configurable logic blocks (CLBs) connected via programmable interconnect. Within the broader hierarchy, FPGAs sit under programmable logic devices (PLDs) and digital ICs, complementing ASICs by offering hardware re-programmability, fast time-to-market, and parallel DSP capability for signal-processing and control-plane workloads. Key features of the EP2C35F484I7N include 33,216 logic elements organized into 2,100 logic array blocks, 35 embedded M9K memory blocks (483,840 RAM bits total), up to 150 18 x 18 hardware multipliers for DSP, and 4 phase-locked loops for clock management. The device supports high-speed external memory interfaces including DDR, DDR2, and QDRII SRAM. Configuration is handled through passive serial, active serial, or JTAG modes. Typical applications include digital signal processing, video processing pipelines, industrial motor control, software-defined radio, communications infrastructure, and prototyping of custom ASIC designs. The wide logic capacity makes it suitable for high-throughput parallel processing tasks. When designing with this device, ensure proper power-supply decoupling across VCCINT, VCCA, and VCCIO rails, and provide adequate thermal relief on the PCB. Signal-integrity planning is critical for DDR2/QDRII interfaces at full speed.

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EP2C35F484I8 - 33,216-Cell, 1.2V Cyclone II FPGA | Intel
EP2C35F484I8

EP2C35F484I8 - 33,216-Cell, 1.2V Cyclone II FPGA | Intel

Intel EP2C35F484I8 is a Cyclone II field-programmable gate array with 33,216 logic cells, 483,840 bits of embedded memory, 322 user I/Os, and a 1.2 V supply in a 484-ball FBGA package. Verified distributor data identifies the device as a 484-BGA FPGA, while Arrow additionally specifies a 402.58 MHz frequency and tray packaging. The I8 ordering-code data indicates an industrial operating-temperature grade, and DigChip gives an operating range of 0 °C to 85 °C. Exact package dimensions, configuration-memory size, embedded multiplier count, PLL count, speed grade, I/O-bank count, and supported I/O standards are not present in the supplied excerpts and therefore require datasheet verification. A field-programmable gate array is a programmable semiconductor containing configurable logic blocks, routing resources, and specialized functional blocks. Unlike a fixed application-specific integrated circuit, an FPGA can implement changing digital logic, interface protocols, control functions, and signal-processing datapaths through a user-generated configuration. Within programmable logic, the hierarchy is FPGA, programmable logic IC, configurable logic device, and integrated circuit. The Cyclone II family combines high logic capacity with embedded memory resources for cost-sensitive digital systems. The headline capacity of 33,216 logic cells supports substantially larger state machines, parallel datapaths, and multi-interface bridges than smaller programmable devices. Its 483,840 memory bits provide on-chip storage for FIFOs, lookup tables, buffers, and control records. A 322-I/O budget permits connection to numerous external memories, data converters, communications peripherals, and control signals. The 1.2 V core supply and 484-FBGA package are central to power-distribution, signal-integrity, and board-layout decisions. The EP2C35 device architecture is configured after board assembly through an external configuration process; exact supported configuration modes and pins must be obtained from the complete manufacturer datasheet before schematic release. The supplied datasheet excerpt states that the EP2C35 I/O count includes 16 dedicated clock pins that can also be used as data inputs. Clock planning therefore should distinguish package I/O capacity from general-purpose user-I/O requirements rather than treating all 322 pins as identical. Typical applications include industrial automation controllers, communications-interface equipment, test and measurement systems, and digital-video or display controllers. These systems benefit from parallel processing, reconfigurable interfaces, and the device's 33,216-cell capacity, 483,840 embedded memory bits, and 322 I/Os. Designers must still validate timing closure, configuration circuitry, termination, decoupling, and signal integrity against the target speed grade and complete Cyclone II datasheet. The most important procurement concern is that the supplied search identifies this mature Cyclone II device but provides no explicit lifecycle statement. Treat lifecycle status as unknown until confirmed from an official Intel product record. No verified cross-reference result establishes a pin-compatible drop-in replacement, so alternatives are limited rather than padded with functional or cross-package devices. This data synthesis adds verified purchasing links, package-aware replacement analysis, application guidance, and clearly marked datasheet gaps beyond a typical distributor listing. Prices are quoted as of 2026-09-08 from the only supplied unit-price snippet, while stock and lead time remain source-specific.

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EP2C35F484I8N - Cyclone II FPGA, 33K LEs, 484-BGA | Intel
EP2C35F484I8N

EP2C35F484I8N - Cyclone II FPGA, 33K LEs, 484-BGA | Intel

The Intel (formerly Altera) EP2C35F484I8N is a Cyclone II family Field-Programmable Gate Array (FPGA) housed in a 484-ball FineLine BGA package with 33,216 logic elements, 483,840 bits of embedded RAM (M4K blocks), 33216 logic cells, and 322 total pins of which up to 322 are user I/O. According to the manufacturer datasheet family overview, the Cyclone II family extends the low-cost FPGA density range up to 68,416 logic elements with up to 622 usable I/O pins and up to 1.1 Mbits of embedded memory, fabricated on a 90 nm process and operating from a 1.2 V core supply. The I8N suffix indicates the industrial temperature grade (-40C to +100C junction) and a lead-free, RoHS-compliant package. An FPGA (Field-Programmable Gate Array) is a type of programmable logic device (PLD) that belongs to the broader hierarchy: programmable logic device -> logic IC -> integrated circuit. Unlike an ASIC, an FPGA's logic fabric, routing, and I/O can be reconfigured by the designer after manufacture, making FPGAs ideal for prototyping, low-volume production, and designs requiring parallel processing, custom I/O timing, or in-field firmware updates. Cyclone II is positioned as a low-cost, high-volume FPGA for cost-sensitive applications such as digital signal processing, communications, industrial control, and embedded processing. Key features of the EP2C35F484I8N include 33,216 logic elements and 483,840 embedded RAM bits arranged in M4K blocks, four general-purpose PLLs for clock synthesis and management, and 322 user I/O pins supporting LVDS, LVTTL, LVCMOS, SSTL, and HSTL I/O standards. The device is supported by the Altera/Intel Quartus II design suite, which provides synthesis, place-and-route, timing analysis, and IP core integration. Configuration is supported via active serial (AS), passive serial (PS), JTAG, and Fast Passive Parallel (FPP) modes with the EPCS serial configuration device family. The Cyclone II architecture combines a logic array based on 4-input look-up tables (4-LUTs) with embedded multiplier blocks and M4K memory blocks for efficient DSP and buffering. The 90 nm CMOS process provides a balanced trade-off between density, performance, and static power consumption. Internal signal integrity is preserved through dedicated routing channels and predictable timing closure, while the Quartus II toolchain enables iterative design refinement against timing constraints up to several hundred MHz depending on logic utilization. Typical applications include industrial control and motor drive systems, video processing and image acquisition pipelines, communications protocol bridging (UART, SPI, I2C, PCIe, Ethernet MAC), consumer electronics with custom video or display interfaces, and educational or prototype development boards. The 322 available I/O pins in the F484 package make the device well suited to designs requiring parallel data buses, multiple ADC/DAC interfaces, or wide memory buses to external SRAM/SDRAM. When designing with the EP2C35F484I8N, ensure that the 1.2 V core and 3.3 V/2.5 V/1.8 V I/O supplies are properly decoupled with 100 nF and 10 uF capacitors placed close to the power balls, and follow Intel/Altera's PCB layout guidelines for BGA fanout to maintain signal integrity on high-speed LVDS pairs. This page synthesizes distributor pricing, drop-in Cyclone II and Cyclone IV/FPGA alternatives, PCB layout notes, and design considerations not found in the manufacturer datasheet alone.

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EP2C35F672C6 - Cyclone II FPGA 33K LE 672-FBGA | Intel
EP2C35F672C6

EP2C35F672C6 - Cyclone II FPGA 33K LE 672-FBGA | Intel

The Intel (formerly Altera) EP2C35F672C6 is a Cyclone II family Field-Programmable Gate Array (FPGA) delivering 33,216 logic elements, 483,840 bits of embedded RAM, and 475 user I/O pins, housed in a 672-ball FineLine BGA package. Built on a 90 nm low-k dielectric CMOS process, it features four phase-locked loops (PLLs) and supports up to 260 MHz internal operation, making it a high-density, low-cost programmable logic solution for cost-sensitive applications. A Cyclone II FPGA is a SRAM-based programmable logic device that allows designers to implement custom digital logic, signal processing, and embedded processor subsystems after PCB fabrication. It belongs to the broader category of programmable logic devices (PLDs), sitting alongside CPLDs, FPGAs, and structured ASICs. Compared with its predecessor Cyclone I, the Cyclone II family roughly doubled logic density while targeting the same low-power, high-volume end of the market. Key features include 33,216 LEs, 483,840 total RAM bits distributed across M4K memory blocks, 70 embedded 18x18 multipliers for DSP operations, four PLLs with multiple output taps, and 475 user I/O pins. The device supports common I/O standards including LVTTL, LVCMOS, PCI, SSTL, and LVDS, with per-pin programmable drive strength and slew-rate control. Cyclone II uses a 90 nm process node with a 1.2 V core supply and offers dedicated hardware multipliers and M4K block RAM that allow efficient implementation of FIR filters, FFTs, video pipelines, and embedded Nios II soft processors. The part number suffix indicates the C6 speed grade (commercial temperature range, approximately -40C to +85C ambient). Typical applications include industrial motor control, video processing and surveillance, telecommunications line cards, embedded industrial controllers, and educational/development platforms. The high I/O count (475) and large memory (483 Kbits) make it well suited for parallel bus interfacing and data-pipeline processing. When designing with the EP2C35F672C6, engineers should plan the power distribution network carefully: Cyclone II requires multiple supply rails (VCCINT, VCCA, VCCIO per bank) and the 672-ball FBGA demands a multilayer PCB with microvia technology. Use the Quartus II design software for synthesis, place-and-route, and timing closure. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers an actionable reference beyond what Altera/Intel provides in their legacy Cyclone II handbook.

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EP2C35F672C6N - 33K LE Cyclone II FPGA, 672-FBGA | Intel / Altera
EP2C35F672C6N

EP2C35F672C6N - 33K LE Cyclone II FPGA, 672-FBGA | Intel / Altera

The Intel / Altera EP2C35F672C6N is a 33,216-logic-element member of the Cyclone® II FPGA family, housed in a 672-ball FineLine BGA package and built on a 90-nm low-k dielectric CMOS process. The device integrates 33,216 logic elements, 483,840 bits of embedded RAM, 33216 logic cells, and 475 user I/O pins, and operates from a 1.2 V core supply with a commercial 0°C to 85°C junction temperature range. What is an FPGA? A Field Programmable Gate Array (FPGA) is a programmable logic device whose architecture is built from an array of configurable logic blocks (CLBs), embedded memory blocks, multiplier/DSP blocks, and a programmable interconnect fabric. In the electronic component hierarchy, an FPGA sits between a microcontroller and a custom ASIC: like a microcontroller it is software-configurable and low-NRE, but like an ASIC it can run truly parallel logic at multi-hundred-MHz clock rates. The Cyclone II family targets cost-sensitive high-volume applications such as digital signal processing, video bridging, and custom peripheral interfaces. Key features include 4 embedded PLL blocks for clock synthesis and skew management, 35 embedded 18×18 multipliers for DSP workloads, a 4-Mbit on-chip RAM subsystem, and support for external memory interfaces including DDR/DDR2 SDRAM and QDRII SRAM. The LVDS / LVTTL / SSTL / HSTL I/O bank architecture supports single-ended and differential signalling up to 475 I/O, with per-bank reference voltage support. Architecturally, the Cyclone II device family uses a 4-input look-up-table (4-LUT) logic element, dedicated carry chains for fast arithmetic, and Altera's Logic Array Block (LAB) grouping of 16 LEs. Configuration is via the Altera Passive Parallel (PP), Passive Serial (PS), Active Serial (AS), or JTAG modes, with configuration bitstream loaded from EPCS serial configuration devices or a microcontroller. Typical applications include industrial motor control, video format conversion, protocol bridging (PCI to local bus, UART to I2S), soft-core processor platforms (Nios II), and high-volume consumer electronics. The 475 I/O count and 33K LE capacity make the EP2C35F672C6N a mid-range workhorse for designs that need more logic than a CPLD but less than a high-end Cyclone IV or V device. When designing with this part, ensure the PCB has a minimum of six PCB layers with dedicated ground and 1.2 V / 2.5 V / 3.3 V power planes to meet signal-integrity and decoupling guidelines in the Cyclone II device family handbook. The 672-FBGA requires a 1.0 mm ball pitch and reflow profile compatible with lead-free SAC alloy. This page synthesises distributor pricing, drop-in compatible Cyclone II family members, and practical design notes not consolidated in the manufacturer datasheet.

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EP2C35F672C7 - Cyclone II FPGA 33K LE 672-BGA | Intel
EP2C35F672C7

EP2C35F672C7 - Cyclone II FPGA 33K LE 672-BGA | Intel

The Intel (Altera) EP2C35F672C7 is a member of the Cyclone II family of low-cost FPGAs, delivering 33,216 logic elements, 483,840 bits of embedded RAM, and 475 user I/O pins in a 672-ball FineLine BGA package at the commercial speed grade 7. Built on a 90 nm low-k dielectric CMOS process, the Cyclone II family targets high-volume, cost-sensitive applications where ASIC-class integration is uneconomical, and the EP2C35 sits at the upper end of the density range for the series. An FPGA (Field-Programmable Gate Array) is a reconfigurable digital integrated circuit containing an array of programmable logic blocks, embedded memory blocks, phase-locked loops, and a programmable interconnect fabric. The Cyclone II family is positioned within Intel's broader programmable logic hierarchy as the entry-to-mid-range tier, sitting above the original Cyclone and below the Stratix/Arria/Cyclone IV families. FPGAs enable parallel hardware implementation of DSP, glue logic, bus bridging, and custom peripherals that would otherwise require discrete logic or an ASIC. Key features of the EP2C35F672C7 include four phase-locked loops (PLLs) for clock synthesis and de-skew, 35 embedded 18×18 multipliers enabling up to 250 MHz DSP performance, support for external memory interfaces including DDR, DDR2, and QDRII SRAM, and Nios II embedded processor soft-core compatibility. The device is supported by the Quartus II design software and offers in-system programmability via serial or parallel configuration interfaces. The 672-BGA package exposes the device's full I/O count, enabling parallel data buses and high-speed external memory connections. The Cyclone II architecture combines look-up-table (LUT)-based logic elements with M4K embedded memory blocks (4 Kbit each, configurable as RAM, ROM, or FIFO). The embedded multipliers are true 18×18 hardware multipliers that accelerate DSP operations such as FIR filters and FFT butterflies without consuming general logic. The PLLs support clock multiplication, division, phase shifting, and external clock feedback, which is essential for source-synchronous memory interfaces and multi-clock-domain designs. Typical applications include industrial motor control, video surveillance and image processing, automotive infotainment pre-production, telecom line cards, low-cost software-defined radio front-end preprocessing, and education/development platforms. The combination of moderate logic density, embedded multipliers, and high I/O count makes the EP2C35 particularly attractive for designs transitioning from discrete DSP+microcontroller solutions to a single programmable device. When designing with this device, allocate pin assignments early to match the BGA escape routing on the PCB, and use the Quartus II Pin Planner to verify I/O standards (LVTTL, LVCMOS, SSTL, LVDS) are supported on the chosen banks. The 672-BGA package requires via-in-pad or dog-bone fanout and controlled-impedance traces for high-speed signals. For new designs, evaluate the Cyclone IV E or Cyclone V families for active roadmap continuity, as Cyclone II is a legacy product family. This page synthesizes distributor pricing, drop-in package-compatible alternatives, and practical design considerations for the EP2C35F672C7 in a single reference, complementing the official Intel Cyclone II datasheet with cross-vendor substitution data, application context, and PCB layout guidance that engineer-focused product pages typically omit.

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EP2C35F672C7N - 33K Logic Elements Cyclone II FPGA, 672-BGA | Altera / Intel
EP2C35F672C7N

EP2C35F672C7N - 33K Logic Elements Cyclone II FPGA, 672-BGA | Altera / Intel

The Altera (now Intel) EP2C35F672C7N is a Cyclone II family Field-Programmable Gate Array (FPGA) delivering 33,216 logic elements, 483,840 total memory bits, and 475 user I/O pins in a 672-ball FineLine BGA package. Manufactured on a 1.2 V core, 90 nm CMOS process with a speed grade of -7 (commercial temperature range 0 °C to +85 °C), it targets cost-sensitive high-volume designs that previously required ASICs. An FPGA (Field-Programmable Gate Array) is a semiconductor device built around an array of configurable logic blocks (CLBs), embedded memory blocks, and programmable interconnect, all of which can be reconfigured by the designer after manufacture. FPGAs occupy the top of the programmable logic hierarchy: programmable logic device (PLD) -> CPLD -> FPGA -> SoC FPGA. Compared with CPLDs, FPGAs offer far higher logic capacity, embedded Block RAM, DSP blocks, and high-speed transceiver capability, but require external configuration memory and a more complex power-up sequence. Key features include 33,216 logic elements (LEs) arranged in 2,100 logic array blocks (LABs), 105 M9K embedded memory blocks delivering 483,840 bits total RAM, 35 embedded 18 x 18 multipliers for DSP operations, and four phase-locked loops (PLLs) for clock management. The device supports DDR/DDR2/QDRII SDRAM interfaces through dedicated external memory interfaces and offers 475 user I/O pins arranged in 8 I/O banks supporting LVDS, LVTTL, LVCMOS, SSTL, and HSTL I/O standards. Cyclone II devices are SRAM-based, so the configuration bitstream must be loaded from an external flash or a configuration controller on every power-up. The EP2C35F672C7N supports Active Serial (AS), Passive Serial (PS), Fast Passive Parallel (FPP), and JTAG configuration modes. Quartus II design software (legacy; current support is via Intel Quartus Prime with Cyclone II device support) is used for synthesis, place-and-route, and timing closure. Typical applications include industrial motor control, video surveillance and image processing, low-cost protocol bridging (PCI to local bus, Ethernet MAC), consumer audio/video processing, and telecom line-card glue logic. The 672-BGA FineLine package provides a 27 x 27 mm footprint with 1.0 mm ball pitch, suitable for multi-layer PCBs using standard BGA assembly processes. When designing with this part, plan a multi-rail power tree (1.2 V core, 2.5 V/3.3 V analog PLLs, I/O bank voltages), respect simultaneous switching output (SSO) limits per bank, and provide decoupling per Cyclone II handbook guidelines. The Cyclone II family is in mature production but has been surpassed by Cyclone IV/V/10 LP for new designs; sourcing risk should be evaluated for long-life programs. This page synthesizes distributor pricing, drop-in pin-compatible Cyclone II alternatives, and practical design notes not found in the manufacturer datasheet.

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EP2C35F672C8 - Cyclone II FPGA, 33K LEs, 672-BGA | Altera
EP2C35F672C8

EP2C35F672C8 - Cyclone II FPGA, 33K LEs, 672-BGA | Altera

The Altera EP2C35F672C8 is a member of the Cyclone II family of low-cost, low-power Field-Programmable Gate Arrays (FPGAs), fabricated on a 90 nm process and offered in a 672-pin FineLine BGA package. The device integrates 33,216 logic elements, 483,840 bits of embedded RAM organized as M4K blocks, and 35 embedded 18x18 multipliers, making it well-suited for high-volume digital logic, DSP, and embedded control applications. The 'F' in the part number denotes the 672-ball FineLine BGA, while the 'C8' speed grade indicates a commercial 8 ns pin-to-pin logic delay tier. An FPGA (Field-Programmable Gate Array) is a semiconductor device built around an array of configurable logic blocks (CLBs), programmable interconnects, and I/O cells that can be rewired by the end user after manufacture. FPGAs sit in the broader category of programmable logic devices (PLDs) and bridge the gap between fixed-function ASICs and software-driven microcontrollers, offering hardware-level parallelism for DSP, protocol bridging, and custom interface designs. Within Altera's (now Intel) portfolio, Cyclone II occupies the low-cost, low-power tier beneath Cyclone III/IV/V and the high-performance Stratix families. Key features of the EP2C35F672C8 include support for up to 475 user I/O pins, four phase-locked loops (PLLs) for clock management, dedicated DDR/DDR2 memory interfaces with integrated data strobe (DQS) pins, and support for multiple I/O standards including LVDS, SSTL, and LVTTL. The 90 nm process delivers a favorable core dynamic-power profile compared with older Cyclone generations, and the 672-BGA package exposes the maximum I/O count for the EP2C35 die. Architecturally, the device is built around LABs (Logic Array Blocks) of 16 LEs each, columns of M4K memory blocks, and DSP blocks for multiply-accumulate operations. Configuration is loaded through the active serial (AS), passive serial (PS), or JTAG interface, and the bitstream is stored in industry-standard EPCS configuration devices. The four PLLs provide frequency synthesis, phase shifting, and clock de-skew for system-level timing closure. Typical applications include industrial motor control, video processing, software-defined radio (SDR) baseband, embedded vision, and low-cost ASIC prototyping. Designers frequently target the EP2C35F672C8 when they need 30K+ LEs with a rich DSP and memory mix at the lowest unit price in the Cyclone II lineup, and where the 672-BGA's high I/O count supports wide external memory buses and multi-standard I/O. When designing with this device, attention must be paid to power distribution across the multiple VCCINT, VCCIO, and PLL supply rails, and to the 672-BGA PCB escape routing - the 1.0 mm pitch demands either microvia or laser-drilled via technology. Designers upgrading to Cyclone III/IV should expect pinout and supply-rail changes, so the EP2C35F672C8 is rarely a drop-in swap for newer families. This page synthesizes distributor pricing, the device's position within the Cyclone II family, drop-in package- and speed-grade alternatives, and practical design notes not found in the standalone datasheet.

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EP2C35F672C8ES - Cyclone II FPGA 33K LE, 672-FBGA | Intel/Altera
EP2C35F672C8ES

EP2C35F672C8ES - Cyclone II FPGA 33K LE, 672-FBGA | Intel/Altera

The Intel (formerly Altera) EP2C35F672C8ES is a member of the Cyclone® II family of low-cost FPGAs fabricated on a 90nm CMOS process, housed in a 672-ball FineLine BGA (FBGA) package. It delivers 33,216 logic elements, 483,840 bits of embedded RAM, and 35 embedded 18x18 multipliers, with up to 475 user I/O pins. The device is pin-compatible with the broader EP2C family, enabling designers to migrate up or down the logic-density range without PCB rework. A Field Programmable Gate Array (FPGA) is a programmable logic device that contains an array of configurable logic blocks (CLBs), interconnect, memory, and hard IP blocks such as PLLs, multipliers, and transceivers. FPGAs sit between general-purpose microcontrollers and ASICs in the system hierarchy: microcontrollers execute software sequentially, ASICs implement fixed logic, while FPGAs offer parallel, hardware-defined functionality that can be reconfigured at any point. Cyclone II specifically targets cost-sensitive, high-volume applications in the FPGA & CPLD product category within the broader Programmable Logic IC family. This part carries the commercial 0°C to 85°C operating range and supports core supply voltages around 1.2V, with PLL and I/O banks powered independently. Key features of the EP2C35F672C8ES include support for LVDS, LVTTL, LVCMOS, SSTL, and HSTL I/O standards across 4 I/O banks, four general-purpose PLLs, and configuration via JTAG, serial passive, or Altera enhanced configuration devices. The Cyclone II architecture embeds Multiplier blocks that deliver up to 250 MHz DSP performance, along with M4K RAM blocks each supporting dual-port operation and FIFO mode. Dedicated per-pin signal integrity features such as on-chip termination (OCT) simplify board layout. From a design perspective, the EP2C35F672C8ES is commonly used in industrial control, automotive infotainment, video processing, and communications infrastructure. Its 35 embedded 18x18 multipliers make it suitable for moderate-throughput DSP such as FIR filters or video scaling. Designers should note that the 'ES' suffix on the original MPN denotes an engineering sample - production builds typically use the EP2C35F672C8 (without ES). For new designs, confirm commercial-grade availability and lifecycle status. When designing with this FPGA, ensure all four PLL supply pins (VCCA, VCCD_PLL) are properly decoupled with ferrite beads and bulk capacitance. The 672-ball FBGA requires 26mm x 26mm PCB area and microvia stack-up for reliable assembly. Use the Quartus II design software (latest service pack for legacy device support) for synthesis and place-and-route, and verify timing with the TimeQuest timing analyzer. This page synthesizes current distributor stock levels, exact-spec drop-in alternatives from the Cyclone II family, and practical design notes not found in the bare manufacturer datasheet - intended for engineers evaluating legacy FPGA stock for production or redesign.

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EP2C35F672C8N - Cyclone II FPGA, 33K LEs, 672-BGA | Altera
EP2C35F672C8N

EP2C35F672C8N - Cyclone II FPGA, 33K LEs, 672-BGA | Altera

The Altera (now Intel) EP2C35F672C8N is a Cyclone II family Field Programmable Gate Array (FPGA) fabricated on a 90 nm low-k process, delivering 33,216 logic elements (LEs), 483,840 total RAM bits, and 475 user I/O pins in a 672-ball FineLine BGA package. It targets cost-sensitive high-volume designs that need substantially more logic capacity than what first-generation Cyclone devices offered, while keeping the silicon cost low through 90 nm process scaling and an optimized LUT-based architecture. A Field Programmable Gate Array (FPGA) is a programmable logic device built from an array of configurable logic blocks (LUTs), programmable routing, and dedicated hard-IP blocks such as block RAM, multipliers, and I/O serializers. FPGAs sit in the broader hierarchy of programmable logic -> programmable logic devices -> digital semiconductor ICs, and are typically used when design flexibility, parallelism, and time-to-market outweigh the unit cost of an ASIC. The Cyclone II family specifically targets the low-cost FPGA segment and is the successor to the original Cyclone series, extending density up to 68,416 LEs and offering up to 1.1 Mbits of embedded memory across the family. The EP2C35F672C8N features 35 embedded 18x18 multipliers for DSP-style operations, four phase-locked loops (PLLs) for clock generation and conditioning, and 33216 logic elements backed by approximately 0.5 Mbit of on-chip RAM. It supports multiple I/O standards including LVTTL, LVCMOS, PCI, SSTL, and LVDS, making it broadly compatible with both legacy parallel buses and high-speed differential interfaces common in industrial and consumer designs. The device operates at a core voltage of 1.2 V with I/O supply rails configurable from 1.5 V to 3.3 V depending on the standard. Architecturally, the EP2C35F672C8N combines a four-input look-up table (LUT) logic fabric with dedicated M4K memory blocks, multiplier blocks, and a row/column interconnect optimized for the 90 nm node. The 672-ball FineLine BGA package exposes 475 usable I/O pins while leaving the remaining balls for power, ground, and configuration. The die is the same silicon used across speed grades, with the speed/grade suffix (C8N) defining timing closure limits rather than functional capability. This means the C7, C8, and C6 variants are typically drop-in alternatives differing only in maximum operating frequency. Typical applications include industrial motor and motion control, video processing pipelines, software-defined radio (SDR) baseband, low-cost ASIC prototyping, and embedded vision front-ends. The large user-I/O count (475) and generous memory bandwidth make it a popular choice for bridging parallel image sensors to processors, glue logic replacement, and education platforms that need to expose many pins for student projects. The wide distribution of the device across octopart-listed suppliers also makes it a familiar reference design for FPGA training boards. When designing with this device, observe the I/O bank grouping rules - each bank shares VCCIO and reference voltage constraints, so split-bus interfaces (e.g., 3.3 V and 1.8 V on the same bus) require careful bank planning. For high-toggle-rate outputs, derate the simultaneous-switching output (SSO) budget per the datasheet I/O chapter to keep ground bounce within spec, and use the Quartus II PowerPlay analyzer to estimate dynamic current before committing to a particular decoupling network. This page synthesizes distributor pricing (as of 2026-09-08), pin-compatible Cyclone II speed-grade and package alternatives, and practical design notes not found in the manufacturer datasheet alone.

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EP2C35F672I6N - 33,216 Logic Cells Cyclone II FPGA | Intel
EP2C35F672I6N

EP2C35F672I6N - 33,216 Logic Cells Cyclone II FPGA | Intel

The Intel (formerly Altera) EP2C35F672I6N is a Cyclone II Field Programmable Gate Array (FPGA) housed in a 672-ball FineLine BGA (FBGA-672) package. It delivers 33,216 total logic elements organized into 2,100 logic array blocks (LABs) and provides up to 483,840 bits of on-chip embedded memory, with support for up to 150 dedicated 18x18 hardware multipliers for cost-sensitive DSP. A Field Programmable Gate Array (FPGA) is a semiconductor integrated circuit built around a matrix of configurable logic blocks (CLBs) connected via programmable interconnect. FPGAs occupy a unique position between general-purpose processors (CPUs/MCUs) and application-specific integrated circuits (ASICs): they offer hardware-level parallelism and deterministic timing like ASICs but remain re-programmable, making them ideal for prototyping, low-volume production, and designs requiring late-stage hardware changes. Within the broader taxonomy, the EP2C35 sits in the low-cost, high-volume Cyclone II family, which itself belongs to the programmable logic device (PLD) category of digital ICs. Key differentiating specifications include 4 embedded PLL blocks for clock management, support for multiple I/O standards (LVDS, LVTTL, LVCMOS, SSTL, HSTL, PCI), and a 1.2V core supply (1.15V to 1.25V) with a separate 3.3V I/O supply. The device operates across the industrial temperature range of -40C to +100C (the 'I' suffix) and the speed grade 6 designation places it in the mid-tier performance bucket. The 672-ball BGA package supports up to 322 user I/O pins, making the EP2C35 one of the densest members of the Cyclone II family. The Cyclone II architecture combines a low-k dielectric 90nm process with a logic structure optimized for DSP and consumer applications. Its 18x18 multiplier blocks enable single-cycle multiply-accumulate operations, while the M4K memory blocks can be configured as RAM, ROM, or FIFO with byte enables. This combination makes the EP2C35F672I6N particularly well-suited for parallel DSP pipelines where multiple MAC operations must complete in a single clock cycle. Typical applications include digital video processing, software-defined radio baseband, industrial motor control, low-cost ASIC prototyping, and embedded vision systems. The wide I/O count supports parallel data buses for SDRAM, SRAM, and video ADCs/DACs without external bus multiplexing. When designing with this part, pay close attention to the four PLL configuration constraints and bank-based I/O voltage grouping. The 672-ball BGA requires a 4-layer or better PCB stack-up with controlled-impedance routing and a solid ground pour beneath the device to meet signal-integrity requirements for LVDS interfaces. This page synthesizes distributor pricing, pin-compatible Cyclone II drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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EP2C35F672I8 - Cyclone II FPGA 33K LE 672-FBGA | Intel
EP2C35F672I8

EP2C35F672I8 - Cyclone II FPGA 33K LE 672-FBGA | Intel

The Intel (formerly Altera) EP2C35F672I8 is a Cyclone II family Field-Programmable Gate Array (FPGA) containing 33,216 logic elements, 483,840 bits of embedded RAM, and 475 user I/O pins, housed in a 672-ball FineLine BGA package. Built on a low-power 90-nm SRAM process, it delivers up to 1.1 Gbps LVDS performance with embedded multipliers and a flexible PLL architecture for high-volume, cost-sensitive designs. The 'I8' suffix indicates an industrial temperature grade (-40C to +100C junction), while the 'C8' speed grade targets 8 ns core timing. A Field-Programmable Gate Array (FPGA) is a semiconductor integrated circuit composed of configurable logic blocks (CLBs), programmable interconnect, and I/O cells that the designer can reconfigure after manufacturing. FPGAs sit above Application-Specific Integrated Circuits (ASICs) and microcontrollers in the programmable logic taxonomy (FPGA -> programmable logic -> digital IC -> semiconductor), offering parallel hardware execution, nanosecond-level latency, and hardware-level deterministic timing that CPUs cannot match. Modern low-cost FPGAs like Cyclone II target glue-logic, protocol bridging, and DSP pre-processing where ASIC NRE is unjustified. Key features include 35 embedded 18x18 multipliers (up to 250 MHz), four general-purpose PLLs with up to 16 output taps each, 250 MHz maximum internal clock frequency, and support for external memory interfaces including DDR, DDR2, SDR, QDRII, and SRAM. The 672-FBGA package uses 1.0 mm ball pitch with a 27x27 mm body, providing ample routing escape for high-density designs. The Cyclone II architecture uses 4-input look-up tables (LUT4) with embedded memory bits distributed throughout the logic array. Logic elements combine LUTs, registers, carry chains, and multiplier blocks to efficiently implement arithmetic, state machines, and DSP pipelines. The fabric supports hot-socketing and PCI Express PIPE compatibility for interface bridging. Typical applications include industrial motor control, video surveillance and image processing, automotive infotainment pre-production, telecom protocol bridging, and low-volume ASIC prototyping. The 475 user I/O accommodate parallel sensor buses and multiple high-speed serial interfaces concurrently. When designing with this FPGA, ensure proper decoupling per Cyclone II handbook guidelines: 100 nF and 10 uF capacitors near each VCC/VCORE/GND pair, and a dedicated VCCAUX filter for PLL noise immunity. Configuration via JTAG or active serial requires correct MSEL pin strapping. This page synthesizes distributor pricing, drop-in alternative MPNs from the same Cyclone II family, and practical design notes not collected in a single manufacturer document.

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EP2C35F672I8N - 33K LE Cyclone II FPGA, 672-BGA | Intel
EP2C35F672I8N

EP2C35F672I8N - 33K LE Cyclone II FPGA, 672-BGA | Intel

The Intel (formerly Altera) EP2C35F672I8N is a low-cost Cyclone II Field-Programmable Gate Array (FPGA) fabricated on a 90 nm CMOS process, delivering 33,216 logic elements, 483,840 total memory bits, and 475 user I/O pins in a 672-ball FineLine BGA package. It is rated industrial temperature grade (-40C to +100C ambient) with the speed grade 8 designation, and ships as a lead-free surface-mount component. The 'N' suffix denotes a Pb-free / RoHS-compliant terminal finish. A Field-Programmable Gate Array is a reconfigurable digital integrated circuit whose logic fabric, interconnect, and I/O can be electrically programmed after PCB assembly. Within the broader silicon taxonomy, FPGAs sit alongside ASICs, microcontrollers, and DSPs as programmable logic devices, but uniquely offer hardware-level parallelism, sub-cycle latency, and on-the-fly reconfiguration. Cyclone II represents Altera's second-generation low-cost FPGA family, optimized for high-volume cost-sensitive designs where ASIC NRE is unjustified. Key features of the EP2C35F672I8N include 33,216 logic elements, 35 embedded 18x18 multipliers (132 9x9 multipliers) for DSP-style arithmetic, 483,840 bits of embedded RAM arranged across M4K blocks, 475 user I/O pins, and four phase-locked loops for clock synthesis and management. The 672-BGA package provides 35x35 ball array with 1.0 mm pitch, enabling dense PCB escape routing while still allowing conventional reflow assembly. Architecturally, the Cyclone II device uses a four-input look-up table (LUT4) logic element, true dual-port M4K memory blocks, and dedicated multiplier blocks adjacent to the logic array. The 672-BGA package supports up to 8 high-speed LVDS channels and 16 global clock networks. Configuration is loaded through passive serial (PS), fast passive parallel (FPP), or JTAG modes using the Altera Quartus design toolchain. Typical applications span industrial motor control, video processing pipelines, software-defined radio front-ends, automotive driver-assistance prototyping, communications protocol bridging, and cost-optimized ASIC prototyping where moderate logic density and abundant I/O are required. The 475 user I/O count and 35 hardware multipliers make it well suited to parallel data acquisition and image preprocessing. When designing with the EP2C35F672I8N, ensure the PCB layout honors the BGA escape pattern with microvia or via-in-pad technology to reach inner-layer routing. Confirm that JTAG, configuration, and decoupling pins are accessible to the programmer, and that the PLL power supply filtering follows the Cyclone II handbook reference schematic. This page synthesizes distributor pricing, package-equivalent drop-in alternatives from the same Cyclone II family, and practical design notes not found in the manufacturer datasheet, giving the engineer a single source for cross-brand replacement decisions and reference-design companion parts.

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EP2C35U484C6 - 33,216 LE Cyclone II FPGA, 484-FBGA | Altera
EP2C35U484C6

EP2C35U484C6 - 33,216 LE Cyclone II FPGA, 484-FBGA | Altera

The Altera (now Intel) EP2C35U484C6 is a Cyclone II family Field Programmable Gate Array (FPGA) that integrates 33,216 logic elements, 483,840 bits of embedded RAM, and 322 user I/O pins in a 484-ball FineLine BGA package. Built on a 90 nm low-k dielectric CMOS process, this device supports an internal operating voltage of 1.2 V and provides a fabric speed-grade 6 (C6) timing classification. The 484-FBGA package designation uses Altera's U484 pin-grid, a 1.0 mm pitch ball array optimized for high-density logic designs. An FPGA (Field Programmable Gate Array) is a type of programmable logic device (PLD) that allows engineers to implement arbitrary digital logic through a configuration bitstream loaded into on-chip SRAM. FPGAs sit in the broader taxonomy of programmable logic -> logic ICs -> digital semiconductors -> integrated circuits. Cyclone II specifically targets low-cost, high-volume applications by balancing logic density, embedded memory, and DSP blocks against aggressive per-unit cost, displacing ASICs and ASSPs in designs where flexibility, fast time-to-market, or low NRE is critical. Key features of the EP2C35U484C6 include 33,216 logic elements organized in 2,076 logic array blocks (LABs), 483,840 total RAM bits distributed across M4K memory blocks, and embedded 18x18 multipliers supporting DSP operations up to approximately 250 MHz. The device also provides 4 PLLs for clock management, JTAG (IEEE 1149.1) boundary-scan support, and Altera's passive serial or active serial configuration interface. From an architecture standpoint, the Cyclone II fabric is built around a four-input look-up table (LUT) per logic element with adjacent register and carry-chain resources. The 484-FBGA package measures 19 mm x 19 mm with 1.0 mm ball pitch, suitable for multi-layer PCB designs with microvia or via-in-pad stack-ups. Compared with the preceding Cyclone generation, Cyclone II doubles logic density and adds dedicated multiplier blocks, improving DSP throughput for fixed-point filter and FFT workloads. Typical applications include video processing and image filtering, industrial control and motor drive logic, low-cost software-defined radio front-end controllers, embedded PCI/PCI-X bridges, and prototyping platforms that later migrate to a Cyclone IV or Cyclone V device. The combination of 322 user I/Os and 4 PLLs makes it well-suited for memory-rich interface bridging such as DDR/DDR2 SDRAM controllers. When designing with the EP2C35U484C6, plan power-decoupling around the 484-ball BGA with at least one 100 uF bulk capacitor per voltage rail and 0.1 uF/0.01 uF ceramic pairs adjacent to each power pin. Use Altera's Quartus II design software (version 13.0 sp1 or earlier supports Cyclone II natively) for synthesis, place-and-route, and timing closure. The FBGA substrate requires X-ray or optical inspection for solder-joint verification during assembly. This page synthesizes distributor pricing, drop-in package-compatible alternatives, and practical design notes compiled from the manufacturer datasheet and current distributor listings - information not aggregated by a single manufacturer page or distributor catalog.

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EP2C35U484C6N - Cyclone II FPGA, 33K LE, 484-FBGA | Altera
EP2C35U484C6N

EP2C35U484C6N - Cyclone II FPGA, 33K LE, 484-FBGA | Altera

The Altera (now Intel) EP2C35U484C6N is a low-cost Cyclone II Field-Programmable Gate Array built on a 90 nm CMOS process, integrating 33,216 logic elements, 483,840 total RAM bits, and 322 user I/O pins in a 484-ball FineLine BGA (UFBGA) package. Per the Cyclone II Device Handbook, the device operates from a 1.2 V core supply with separate VCCIO banks that support 1.5 V, 1.8 V, 2.5 V, and 3.3 V I/O standards, and offers embedded 18x18 multipliers and PLL clock management blocks for DSP and high-speed serial-deserializer bridging. What is an FPGA? An FPGA (Field-Programmable Gate Array) is a semiconductor device whose logic fabric, routing, and I/O can be configured by the customer after manufacture, enabling hardware-level parallelism for DSP, glue logic, prototyping, and ASIC-replacement designs. The Cyclone II family sits in the low-cost density tier between CPLDs and high-end FPGAs, targeting cost-sensitive applications such as industrial controllers, video processing, and protocol bridging. Within the taxonomy, Cyclone II belongs to Altera's low-power, low-cost FPGA family and is positioned beneath the Stratix performance tier. Key features of the EP2C35U484C6N include 33,216 logic elements arranged across 2,076 logic array blocks (LABs), 105 M9K embedded memory blocks totaling 483,840 RAM bits, 35 embedded 18x18 multipliers for DSP operations, four phase-locked loops (PLLs) for clock synthesis and skew management, and 322 maximum user I/Os supporting LVDS, LVTTL, LVCMOS, SSTL, and PCI I/O standards. The U484 package (484-ball FBGA, 1.0 mm pitch) supports commercial operating temperature (0 °C to +85 °C) and is RoHS-compliant (lead-free). Architecturally, the Cyclone II fabric uses a four-input lookup table (LUT) based logic element with dedicated carry chains for fast arithmetic, distributed M9K RAM blocks scattered throughout the LAB array, and multiplier blocks hardwired between LAB columns. Configuration is loaded via Altera's serial or parallel configuration schemes through dedicated JTAG or AS (active serial) configuration pins, supported by the Quartus II design toolchain. Typical applications include industrial motor control, video surveillance and image processing front-ends, telecommunications protocol bridging, PCI/PCI-X interface bridging at 33-66 MHz, software-defined radio (SDR) baseband processing, and FPGA-based prototyping of ASIC designs. The wide VCCIO bank flexibility also makes it suitable for mixed-voltage system design where older 5 V-tolerant or 3.3 V peripherals must coexist with 1.8 V processors. When designing with the EP2C35U484C6N, plan power sequencing carefully: the 1.2 V core VCCINT must ramp before or simultaneously with VCCIO to avoid I/O latch-up. Use Altera's PowerPlay Power Analyzer inside Quartus II for accurate thermal estimation, and provide at least 4-layer PCB routing with continuous ground and power planes for the 322 high-speed I/Os. This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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EP2C35U484C7 - Cyclone II FPGA, 33K LE, 484-FBGA | Altera/Intel
EP2C35U484C7

EP2C35U484C7 - Cyclone II FPGA, 33K LE, 484-FBGA | Altera/Intel

The Altera (Intel) EP2C35U484C7 is a Cyclone II family Field-Programmable Gate Array (FPGA) fabricated on a 90 nm CMOS process, delivering 33,216 logic elements, 483,840 bits of embedded RAM, and 322 user I/O pins in a 484-ball FineLine BGA (UBGA-484) package. Per Altera's Cyclone II Device Handbook, the device operates from a 1.2 V core supply with separate VCCIO banks supporting multiple I/O standards, and supports internal frequencies up to 402.58 MHz. An FPGA (Field-Programmable Gate Array) is a programmable logic device consisting of an array of configurable logic blocks (CLBs), embedded memory, DSP blocks, and programmable I/O cells interconnected by a routing fabric. FPGAs sit in the hierarchy: programmable logic -> semiconductor -> integrated circuit. They are widely used for parallel digital signal processing, custom interfaces, prototyping ASICs, and glue logic where fixed-function ASSPs cannot meet timing, throughput, or interface requirements. The Cyclone II family targets cost-sensitive, high-volume applications with low-to-moderate logic density needs. Key features of the EP2C35U484C7 include 33,216 logic elements, 4 PLLs for clock synthesis and skew management, 35 embedded 18x18 multipliers for DSP workloads, 483,840 total RAM bits distributed across M4K memory blocks, and 322 general-purpose I/Os supporting LVDS, LVTTL, LVCMOS, SSTL, and PCI I/O standards. Per Altera documentation, the device also supports PCI 32/64-bit at 33/66 MHz and 133 MHz PCI-X operation through external PHYs and MegaCore IP, plus external PCI Express x1 with an Altera MegaCore function and TI PHY companion. Typical applications include industrial motor control and factory automation, video processing and image pipelines, communication infrastructure (bridges, routers), test and measurement instrumentation, and embedded control designs requiring custom high-speed parallel interfaces. The 322 user I/Os make it especially attractive for designs that need to aggregate many parallel sensors, displays, or legacy buses. When designing with this device, ensure robust decoupling on every VCC and VCCIO pin (per Cyclone II Handbook guidelines), respect the maximum I/O count when planning pin assignments, and use the Quartus II design suite (the original toolchain) for synthesis, place-and-route, and timing closure. The 484-FBGA package requires careful PCB layout with proper via-in-pad or dog-bone fanout, controlled-impedance traces for high-speed I/O, and adequate ground flooding for signal integrity.

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EP2C35U484C7N - Cyclone II FPGA 33K LEs 484-FBGA | Intel / Altera
EP2C35U484C7N

EP2C35U484C7N - Cyclone II FPGA 33K LEs 484-FBGA | Intel / Altera

The Intel (formerly Altera) EP2C35U484C7N is a low-cost Cyclone II family Field-Programmable Gate Array (FPGA) fabricated on a 90 nm CMOS process, delivering 33,216 logic elements and 483,840 bits of embedded RAM in a 484-ball FineLine BGA package. It supports up to 322 general-purpose I/O pins with 1.2 V core operation and per-bank selectable I/O standards including LVDS, LVTTL, LVCMOS, SSTL and HSTL, making it a flexible glue-logic and signal-processing platform for cost-sensitive designs. A Field-Programmable Gate Array (FPGA) is a semiconductor device built around an array of configurable logic blocks (CLBs), programmable interconnects, and dedicated hardware resources such as block RAM and multipliers that allow designers to implement custom digital logic after manufacture. Within the broader taxonomy, the EP2C35U484C7N sits at FPGA > programmable logic device (PLD) > logic IC > integrated circuit (IC) > semiconductor. Cyclone II is positioned as the low-power, low-cost tier of the Altera/Intel FPGA portfolio, optimized for ASIC-replacement, DSP co-processing and parallel I/O expansion rather than the highest performance. Key features of this part include 35 embedded 18x18 multipliers for DSP operations, four phase-locked loops (PLLs) for clock management, and support for external memory interfaces such as DDR/DDR2 SDRAM. The device is offered in the commercial 0C to 85C temperature grade and the U484 package variant (484-ball Ultra FineLine BGA, 19x19 mm) balances high I/O count with manageable PCB routing. The architecture combines embedded M4K RAM blocks (total 483,840 bits) with a rich interconnect fabric that supports variable-length routing paths to optimize both speed and density. The internal clock network, backed by four PLLs, can synthesize multiple output frequencies from a single reference, simplifying designs that must meet multiple timing domains. Typical applications include industrial control and motor drive, video surveillance and image processing pipelines, software-defined radio front-ends, communications infrastructure (bridges, routers, baseband preprocessing), and ASIC prototyping or replacement. It is also widely used in educational and development platforms such as the Altera DE2 board. When designing with the EP2C35U484C7N, plan a 6- to 8-layer PCB with controlled-impedance routing and a 1.2 V core supply capable of delivering the in-rush current demanded during configuration. This page synthesizes distributor pricing, drop-in package-equivalent variants, and practical design notes not found in the manufacturer datasheet alone.

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EP2C35U484C8 - Cyclone II FPGA, 33K LE, 484-FBGA | Intel
EP2C35U484C8

EP2C35U484C8 - Cyclone II FPGA, 33K LE, 484-FBGA | Intel

The Intel (formerly Altera) EP2C35U484C8 is a low-cost, high-density Cyclone II Field-Programmable Gate Array (FPGA) housed in a 484-ball FineLine BGA (UBGA-484) package. The device delivers 33,216 logic elements, 483,840 bits of embedded RAM (483.84 Kb organized as 33216x9 or similar M4K blocks), and 322 user I/O pins, targeting high-volume applications where cost-per-logic-element is decisive. The C8 speed grade balances timing margin and Fmax for cost-sensitive designs across commercial 0C to 85C operation. An FPGA (Field-Programmable Gate Array) is a programmable semiconductor device containing an array of configurable logic blocks (CLBs), programmable interconnects, and dedicated hard IP blocks such as block RAM, DSP multipliers, PLLs, and transceivers. FPGAs sit alongside microcontrollers and ASICs in the digital design hierarchy, offering hardware-level parallelism, deterministic latency, and post-production reprogrammability. Cyclone II specifically targets the low-power, low-cost segment of the FPGA market, providing just enough DSP, memory, and I/O for motor control, video processing, and bridging applications without the cost of high-end Stratix or Cyclone V+ devices. Key features of the EP2C35U484C8 include four phase-locked loops (PLLs) for clock synthesis and skew management, support for external memory interfaces including DDR/DDR2 SDRAM and QDRII SRAM, and 35 embedded 18x18 multipliers for DSP workloads. The 1.15V to 1.25V core supply is supported by on-chip voltage regulation, simplifying power tree design. Configuration is supported via JTAG, Active Serial (AS), Passive Serial (PS), and Fast Passive Parallel (FPP) modes. The Cyclone II architecture uses a 90nm low-k dielectric CMOS process with a Look-Up Table (LUT) based logic fabric and column-based block RAM, giving designers a balance between density and signal integrity. Internal clock networks span the entire die, and the device supports source-synchronous interfaces up to 250 MHz on LVDS pairs, suitable for parallel ADC/DAC interfacing. Typical applications include industrial motor control and drives, video surveillance and image processing pipelines, automotive infotainment subsystems, telecom line cards requiring bridging logic, and PCI/PCI-Express endpoint implementations. The 484-FBGA package supports the high pin density required for parallel external memory and high-speed LVDS interfaces. When designing with this FPGA, engineers should follow Altera (now Intel) power-estimator and timing-analyzer flows in Quartus II to validate thermal and timing closure. The exposed die paddle requires thermal vias to a copper pour to keep junction temperature within commercial-grade limits. This page synthesizes distributor pricing, drop-in Cyclone II family alternatives, and practical Quartus II design notes that are not consolidated on any single manufacturer page.

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EP2C35U484C8N - Cyclone II FPGA, 33K LE, 484-FBGA | Altera
EP2C35U484C8N

EP2C35U484C8N - Cyclone II FPGA, 33K LE, 484-FBGA | Altera

The Altera (now Intel) EP2C35U484C8N is a Cyclone II family Field-Programmable Gate Array (FPGA) built on a 90 nm CMOS process, delivering 33,216 logic elements, 483,840 bits of embedded memory, and 322 user I/O pins in a 484-ball FineLine BGA package. The 'C8' speed grade corresponds to a commercial temperature range of 0 °C to 85 °C with a logic core voltage of 1.2 V, and the device supports internal operation up to approximately 500 MHz. A Field-Programmable Gate Array (FPGA) is a programmable logic device that combines configurable logic blocks, programmable interconnect, embedded memory blocks, and dedicated multipliers into a single silicon die. Cyclone II sits in the low-cost FPGA segment and is widely used in volume production as glue logic, video/display bridging, motor control, and industrial communications. Architecturally, an FPGA such as the EP2C35 belongs to the broader class of programmable logic devices (PLDs), which themselves sit above ASICs in design flexibility and below microcontrollers in per-unit cost for high-volume applications. Key features of the EP2C35U484C8N include 33,216 logic elements arranged into logic array blocks (LABs), 483,840 bits (roughly 60 Kbytes) of M4K embedded memory, 35 embedded 18 × 18 multipliers, up to 4 PLLs, and 322 general-purpose user I/O pins spread across 8 I/O banks that support a wide range of I/O standards including LVDS, LVTTL, LVCMOS, SSTL, and PCI. Configuration is supported through active serial (AS), passive serial (PS), and JTAG modes. The Cyclone II architecture uses a four-input look-up table (LUT) per logic element, a true dual-port M4K memory block (4 Kbits plus 256 parity bits), dedicated hardware multiplier blocks to accelerate DSP operations, and a flexible multi-clock network. Combined with on-chip PLLs, the EP2C35 offers a balanced resource mix for parallel arithmetic, buffering, and protocol bridging. Typical applications for the EP2C35U484C8N include industrial motor control drives, video capture and display pipelines, telecom interface cards, factory automation controllers, and embedded system prototypes. The 322 user I/Os are sufficient for high-pin-count bridges between microcontrollers, memories, and parallel data buses. When designing with this device, pay close attention to the 1.2 V core supply decoupling scheme, the I/O bank VCCIO planning for mixed-voltage interfacing, and the JTAG chain topology for in-system programming. Always use the latest Altera Quartus II toolchain (or the Cyclone II device support in newer Intel Quartus releases) for synthesis, place-and-route, and timing closure. This page synthesizes distributor pricing, drop-in alternatives from the same Cyclone II family, and practical board-design notes not found in the manufacturer datasheet alone.

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EP2C35U484I8 - Cyclone II FPGA, 33K LEs, 484-FBGA | Altera/Intel
EP2C35U484I8

EP2C35U484I8 - Cyclone II FPGA, 33K LEs, 484-FBGA | Altera/Intel

The Intel (formerly Altera) EP2C35U484I8 is a Cyclone II family Field-Programmable Gate Array (FPGA) built on a low-power 90-nm process, integrating 33,216 logic elements (LEs) into a 484-pin FineLine Ball-Grid Array (U484 / 484-FBGA, 19x19 mm). The device includes 483,840 bits of embedded RAM organized in M4K blocks, 35 embedded 18x18 hardware multipliers (33216 LEs equivalent shown in DigiKey title is the LE count, while Jotrin describes 2076 LABs / CLBs), and 4 phase-locked loops for clock management, with 322 general-purpose user I/O pins. An FPGA is a reprogrammable integrated circuit whose logic function is defined by user-loaded configuration bitstream rather than fixed mask geometry, allowing rapid prototyping, in-field upgrades, and hardware parallelism unmatched by microcontrollers or DSPs. Cyclone II sits in Altera's low-cost FPGA hierarchy: FPGA → programmable logic → programmable logic device (PLD) → semiconductor, optimized for high-volume cost-sensitive applications such as digital video, communications infrastructure, and industrial control. Cyclone II FPGAs established the cost-optimized FPGA category alongside Xilinx Spartan-3. Key features include 66 (4 per M4K block / RAM block) embedded 18x18 multipliers supporting DSP operations at up to ~250 MHz, support for LVDS, LVTTL, LVCMOS, SSTL, and HSTL I/O standards, hot-socketing capability for live insertion, and a -40C to +100C industrial junction temperature range. The industrial speed grade I8 selects the slowest industrial speed bin, while the U484 package designation identifies a wire-bond FineLine BGA. Configuration can be loaded via passive serial (PS), active serial (AS), or JTAG modes using EPCS serial configuration devices. Typical applications include low-cost video processing pipelines, telecom line-card glue logic, industrial motor-control co-processors, and PCI Express endpoint bridges (using soft IP). The high pin count and large logic capacity suit designs aggregating multiple interfaces such as USB 2.0, Ethernet MAC, DDR/DDR2 memory controllers, and Nios II soft-core embedded processors. When designing, ensure the PCB supports JTAG header (TCK/TMS/TDO/TDI/nCONFIG/nSTATUS) for configuration download, allocate decoupling capacitance per Quartus II power analysis, and verify I/O bank voltage compatibility when mixing LVDS and 3.3V LVCMOS signals. This page synthesizes distributor pricing, parameter context, and Cyclone II alternatives not consolidated in the manufacturer datasheet.

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EP2C35U484I8N - Cyclone II FPGA, 33K LE, 484-FBGA | Intel
EP2C35U484I8N

EP2C35U484I8N - Cyclone II FPGA, 33K LE, 484-FBGA | Intel

The Intel (Altera) EP2C35U484I8N is a member of the Cyclone II family of low-cost FPGAs, fabricated on a 90 nm process and offered in a 484-ball FineLine BGA package. The device integrates 33,216 logic elements, 483,840 bits of embedded RAM, and 322 maximum user I/O pins, providing a high-density programmable fabric for cost-sensitive applications. A field-programmable gate array (FPGA) is a semiconductor device built around an array of configurable logic blocks (CLBs) interconnected via a programmable routing matrix. Cyclone II sits in the low-power, low-cost tier of the FPGA hierarchy between CPLDs (smaller, non-volatile) and high-end FPGAs such as Stratix. It is implemented in 90 nm CMOS technology and supports on-chip memory, embedded multipliers, and PLL-based clock management, making it a true system-on-chip programmable platform rather than a simple glue-logic device. Key features of the EP2C35U484I8N include 35 embedded 18x18 multipliers for DSP-style arithmetic, four PLLs for clock synthesis and skew management, and support for external memory interfaces including DDR/DDR2 SDRAM and QDRII SRAM. Configuration is typically loaded through JTAG or via an external serial/parallel flash, and the part is offered in the -I8N speed/temperature grade (industrial -40C to +100C junction, 8 ns timing). From an architectural perspective, the device is built around LABs (logic array blocks) of 16 LEs each, with a MultiTrack interconnect that minimises routing congestion. The 90 nm process gives a typical core voltage of 1.2 V with separate VCCIO banks for I/O standard flexibility (LVTTL, LVCMOS, SSTL, HSTL, LVDS, PCI). This makes the EP2C35 well suited to bridge legacy 5 V peripherals to modern 1.8 V/2.5 V cores in mixed-voltage systems. Typical applications include industrial motor control, video processing pipelines, telecommunications line cards, prototyping of ASIC designs, and embedded vision. Designers choose the EP2C35U484I8N specifically because it balances logic density, memory bandwidth, and price in a footprint that supports both parallel and serial high-speed interfaces. When designing with this device, pay close attention to the decoupling strategy (a 100 uF bulk plus 0.1 uF and 0.01 uF ceramics per VCC pin group is typical) and to I/O bank voltage planning, because mixing 3.3 V LVCMOS with 1.8 V SSTL on the same bank is not allowed. This page synthesises distributor pricing, drop-in same-package Cyclone II alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single source for sourcing and substitution decisions.

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EP2C50F484C6 - Cyclone II FPGA, 50K LEs, 484-FBGA | Intel
EP2C50F484C6

EP2C50F484C6 - Cyclone II FPGA, 50K LEs, 484-FBGA | Intel

The Intel EP2C50F484C6 is a Cyclone II family Field-Programmable Gate Array (FPGA) built on a 90 nm CMOS process, delivering 50,528 logic elements and 294 user I/Os in a 484-ball FineLine BGA package. Operating from a 1.2 V core supply, the device supports up to 500 MHz internal operation and integrates 594 Kbit of embedded RAM across 3158 Configurable Logic Blocks (CLBs), giving designers ample headroom for glue-logic, bus-bridging, and DSP pre-processing tasks. The 'C6' speed grade targets commercial-temperature applications and pairs with Altera/Intel's Quartus II design suite for synthesis, place-and-route, and configuration generation. A Field-Programmable Gate Array (FPGA) is a semiconductor device whose logic function is defined by a user-supplied configuration bitstream rather than at the factory. Positioned in the taxonomy as: FPGA -> programmable logic device (PLD) -> integrated circuit -> semiconductor, FPGAs sit alongside microcontrollers, ASICs, and ASSPs in the wider system-on-chip ecosystem but offer the unique advantage of post-silicon hardware re-programmability. The Cyclone II family specifically targets cost-sensitive, high-volume applications where a low unit cost masks the NRE of an ASIC. Key features of the EP2C50F484C6 include 4 phase-locked loops (PLLs) for clock synthesis, dedicated 18-bit x 18-bit hardware multipliers for DSP, 8 Mb of total on-chip memory distributed in M4K blocks, and LVDS/LVTTL/LVCMOS I/O support. It supports configuration via JTAG, Active Serial (AS), Active Parallel (AP), and Passive Serial (PS) modes. The 484-pin FineLine BGA uses a 1.0 mm ball pitch and is footprint-compatible with other Cyclone II F484 devices of differing logic densities (EP2C8, EP2C20, EP2C35, EP2C50, EP2C70). From an architectural standpoint, the Cyclone II LAB (Logic Array Block) is built from 16 Logic Elements arranged in a column, with each LE containing a 4-input LUT, a programmable register, and carry chain logic. The M4K memory blocks (4 Kbit each) double as simple dual-port or single-port RAM, ROM, or shift registers, eliminating the need for external SRAM in many bus-interface designs. Typical applications include industrial motor control and factory automation front-ends, video/image processing pipelines, software-defined radio (SDR) baseband, telecommunications line cards, low-cost digital signal processing, and educational/development platforms. The combination of 50K logic elements, 8 Mb on-chip RAM, and 18-bit hardware multipliers makes it a sweet spot for mid-density control-plane and signal-conditioning designs. When designing with this part, plan your pin assignments against the four PLL-driven global clock networks early to avoid later place-and-route congestion. The C6' speed grade offers a balance of timing margin versus cost; if the timing closure is too tight, step up to the C7 or C8 grade in the same package without any PCB changes. This page synthesizes distributor pricing, drop-in alternatives drawn from the same Cyclone II family, and practical design notes not found in the manufacturer datasheet itself.

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EP2C50F484C6N - 50K Logic Elements Cyclone II FPGA 484-BGA | Intel
EP2C50F484C6N

EP2C50F484C6N - 50K Logic Elements Cyclone II FPGA 484-BGA | Intel

The Intel (formerly Altera) EP2C50F484C6N is a Cyclone II family Field-Programmable Gate Array (FPGA) housed in a 484-ball FineLine BGA package, offering 50,528 logic elements, 594,432 bits of embedded RAM, and 294 user I/O pins. Built on a 90 nm low-k dielectric process, the device operates from a 1.2 V core supply with 1.5 V/1.8 V/2.5 V/3.3 V multi-voltage I/O support and is rated for commercial temperature operation (0 C to +85 C). The 'C6' speed grade and 'N' lead-free suffix indicate a commercial-grade silicon revision with Pb-free packaging. A Field-Programmable Gate Array (FPGA) is a semiconductor device containing a matrix of programmable logic cells, embedded memory blocks, and programmable routing that engineers can configure after manufacture to implement arbitrary digital logic. FPGAs sit hierarchically between discrete logic ICs (lower density, fixed function) and ASICs (higher volume, fixed mask-set), and they belong to the broader programmable logic device (PLD) family that also includes CPLDs and SPLDs. Cyclone II specifically targets cost-sensitive high-volume applications by combining low-power 90 nm geometry with embedded 18x18 multipliers and M4K RAM blocks, eliminating the need for external multipliers in DSP pipelines. Key features include 50,528 logic elements, 594,432 RAM bits, 129 embedded 18x18 multipliers for DSP workloads, and 4 PLLs for clock management. The device supports LVDS, SSTL, LVTTL, PCI, and LVCMOS I/O standards and offers up to 16 global clock networks. Embedded memory is organized into M4K blocks of 4 Kbits each, configurable as RAM, ROM, or FIFO. The Cyclone II architecture uses a Look-Up Table (LUT)-based logic element combined with a fine-grained routing interconnect, delivering a balance of logic density and predictable timing closure. The 90 nm process node positions this part between the older Cyclone (130 nm) family and the newer Cyclone III (65 nm) family, making the EP2C50 a cost-effective choice when low unit price matters more than absolute lowest power. Typical applications include industrial motor control, video processing, software-defined radio, embedded vision, and prototyping bridges to ASICs. Cyclone II is widely deployed in factory automation, broadcast equipment, and cost-sensitive consumer devices where 50K logic elements and embedded multipliers are sufficient. When designing with the 484-BGA package, allocate an even number of PCB layers for the BGA breakout (typically 6 to 8 layers), keep all decoupling capacitors within 100 mils of their balls, and follow Altera's recommended power sequencing to avoid latch-up. Engineers migrating to a newer device should evaluate Cyclone IV E or Cyclone V for active product longevity, while still using the EP2C50 for new cost-driven designs targeting the legacy Cyclone II silicon revision. This page synthesizes distributor pricing, drop-in alternatives from the same Cyclone II and Cyclone III families, and practical design notes not found in the manufacturer datasheet.

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EP2C50F484C7 - Cyclone II FPGA, 50K LE, 484-FBGA | Intel
EP2C50F484C7

EP2C50F484C7 - Cyclone II FPGA, 50K LE, 484-FBGA | Intel

The Intel (Altera) EP2C50F484C7 is a Cyclone II family Field-Programmable Gate Array (FPGA) delivering 50,528 logic elements, 594,432 bits of embedded RAM, and 294 user I/O pins in a 484-ball FineLine BGA package. The device is fabricated on a 90 nm low-k dielectric process and operates from a 1.2 V core supply with hot-socketing and PCI Express-friendly I/O support, enabling both standalone and bus-resident designs. A Cyclone II FPGA is a SRAM-based programmable logic device that combines lookup-table-based logic blocks with embedded memory, embedded multipliers (DSP blocks), and phase-locked loops on a single die. In the broader system hierarchy, an FPGA sits below application-specific standard products (ASSPs) and above discrete logic gates, offering hardware-level parallelism that microcontrollers and DSPs cannot match. Designers use Cyclone II devices when time-to-market, design flexibility, or parallel signal processing outweigh the per-unit cost advantage of a hard-wired ASIC. Key features of the EP2C50F484C7 include 50,528 logic elements (LEs), 129 M4K RAM blocks (594 Kbit total), 86 embedded 18 x 18 multipliers, four PLLs, and 294 maximum user I/Os. The 484-FBGA package supports a wide range of single-ended I/O standards (LVTTL, LVCMOS, SSTL, HSTL) plus differential standards (LVDS, RSDS, mini-LVDS, LVPECL) on selected pins, giving designers flexibility to bridge legacy and modern ASIC/ASSP interfaces. The Cyclone II architecture uses a four-input LUT as the basic logic element, with a dedicated carry chain for fast arithmetic and a dedicated register per LE. Embedded multipliers are arranged in columns along the device, allowing DSP functions such as FIR filters and FFT butterflies to run at the full 402 MHz internal clock rate. The four PLLs provide clock multiplication, division, phase shifting, and duty-cycle control, which simplifies multi-clock-domain designs and reduces external clock-tree complexity. Typical applications include industrial motor control and factory-automation backplanes, video-processing and image-pipeline front-ends, telecom line cards, low-cost software-defined radio prototyping, and PCI Express endpoint bridging. The 484-FBGA package makes the part suitable for board designs that need the highest I/O count in the Cyclone II family without stepping up to the larger Cyclone III/IV generations. Designers should pay close attention to power-plane decoupling (multiple 0.1 uF and 10 uF caps near each VCC/GAT pair), JTAG chain ordering when multiple Altera/Intel devices share a bus, and configuration-mode selection between AS, PS, and JTAG. The device also requires a configuration flash or download cable for SRAM-based bitstream loading on every power-up. This page combines distributor pricing, drop-in compatible alternatives in the same 484-FBGA footprint, and practical design notes not found in the standalone manufacturer datasheet, helping engineers select and source the EP2C50F484C7 with confidence.

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