EP2C20Q240C8N FPGA - Cyclone II 18K LE PQFP-240 | Altera
MPN: EP2C20Q240C8N ✗ Son Kullanım ZamanıEP2C20Q240C8N Genel Bakış
An FPGA, or field-programmable gate array, is a programmable logic device whose internal logic blocks, routing resources, and I/O elements can be configured after manufacturing to implement arbitrary digital hardware. In the hierarchy of semiconductor logic, an FPGA belongs to programmable logic devices (PLDs), sitting above simple CPLD products and below custom ASICs in capacity and design flexibility. Cyclone II is Altera/Intel's low-cost FPGA family, optimized for cost-sensitive applications that need thousands of reconfigurable logic elements without the non-recurring engineering cost of a custom chip.
Key features of the EP2C20Q240C8N include 18,752 logic elements, 239,616 total RAM bits, and a commercial 0 °C to 85 °C operating range. The 240-pin PQFP package provides 142 user I/O pins, which is practical for moderate bus widths, control interfaces, and bridging applications. As a speed-grade -8 device, it targets main-stream cost-optimized designs rather than the fastest timing closure. The 1.2 V core voltage allows low dynamic power, while I/O banks support common single-ended standards such as LVCMOS and LVTTL.
The Cyclone II architecture is based on 4-input look-up-table logic elements grouped into logic array blocks, complemented by embedded memory blocks and dedicated clock networks. The 90 nm process and 1.2 V core helped make mid-density FPGAs affordable for industrial and communications equipment during Cyclone II's production life. The EP2C20Q240C8N is configured through SRAM cells, so it requires an external configuration device such as an EPC or EPCS serial device or a JTAG download cable at power-up.
Typical applications include industrial motor/motion control, image and video preprocessing, communication bridging, medical front-end processing, and digital-prototyping boards. In these systems, the EP2C20Q240C8N provides deterministic parallel processing and flexible I/O at a lower cost than a larger FPGA. Its QFP package also supports simpler PCB inspection and rework than fine-pitch BGA alternatives.
A critical design consideration is the need for clean 1.2 V core power, separate I/O bank voltages, and a proper configuration scheme chosen by the MSEL pins. Because this is a legacy FPGA family, new designs should verify device lifetime, configuration-device availability, and distributor stock before committing to production.
This page synthesizes distributor pricing, same-package drop-in alternatives, application guidance, and practical design notes not found in a simple parametric listing. It helps engineers make faster sourcing and migration decisions for legacy Cyclone II sockets.
Drop-in alternatifler için EP2C20Q240C8N — aynı paket, pin-başına uyumlu. PCB yeniden montajı gerektiren farklı paket bileşenleri dışlanmıştır.
Bu Serideki Variantlar
Yedek parça uyumlu olan aynı serideki modeller EP2C20Q240C8N (aynı form faktörü ve ayağa oturma) — farklı olan Logic Elements, Maximum Internal Frequency, Operating Temperature, Package Type.
EP2C20Q240C8
✅ YerleştirmeFiyat için iletişime geçin
Veri Şablonunu Görüntüle →EP2C20Q240C7N
✅ Yerleştirme ⚠️ Onaylanmamış Özellikler📋 Katalogda Olmayan Referans Alternatifi
EP2C20Q240I8N
✅ Yerleştirme ⚠️ Onaylanmamış ÖzelliklerFiyat için iletişime geçin
Veri Şablonunu Görüntüle →EP2C20Q240C7
✅ Yerleştirme ⚠️ Onaylanmamış Özellikler📋 Katalogda Olmayan Referans Alternatifi
EP2C20Q240I8
✅ Yerleştirme ⚠️ Onaylanmamış Özellikler📋 Katalogda Olmayan Referans Alternatifi
EP2C20Q240C8N Maksimum Değerlendirmeler & Elektriksel Özellikler
| FPGA Family | Cyclone II |
| Logic Elements | 18752 |
| Total RAM Bits | 239616 |
| User I/O Pins | 142 |
| Package Type | 240-Pin PQFP (BFQFP) |
| Pin Sayısı | 240 |
| Montaj Türü | Surface Mount |
| Technology | 90 nm |
| Core Supply Voltage | 1.2 V |
| İşletim Sıcaklığı | 0 °C to 85 °C |
| Logic Family | CMOS |
| Speed Grade | 8 |
| Azami Saat Hızı | 402.58 MHz |
| Lead-Free Finish | Yes (N suffix) |
EP2C20Q240C8N 240-pin pqfp (bfqfp) Pin Yapısı Kılavuzu
EP2C20Q240C8N (240-pin pqfp (bfqfp) paket) için pin yapısı. Bu dijital IC, GPIO, iletişim arayüzleri (UART, SPI, I2C) ve güç pinleri içerir. Alternatif pin işlevleri ve yapılandırma seçenekleri için üretici veri kitapçığını referans alın. Tünel sistem tasarımı ve PCB yerleşimi için temel bir bileşendir.
Ayrıntılı pin çıkış verisi mevcut değil: EP2C20Q240C8N.
Aşağıdaki veri sayfası tam pin konfigürasyonu için.
Tipik Uygulamalar
EP2C20Q240C8N için uygundur 6 uygulamas: Industrial Motor Control, Video and Image Processing, Medical Diagnostic Front-End, Communication Protocol Bridging, FPGA Prototyping and Education, Digital Logic / Sensor Interface Accelerator.
Industrial Motor Control
EP2C20Q240C8N provides 18,752 logic elements and up to 142 I/O pins, enough to implement multi-axis PWM generation, quadrature encoder decoding, and soft-core motor-control state machines in one device. The 1.2 V core with separate I/O banks lets the FPGA operate encoder and valve logic at 3.3 V while keeping core power low. Because the 240-pin PQFP avoids BGA assembly, it is well suited to industrial control cards that need rework during prototype or small-series production. The -8 speed grade provides practical timing for control loops; if the loop needs extra margin, speed-grade -7 variants such as EP2C20Q240C7N are available in the same package.
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Video and Image Processing
Video pipelines that need capture, scaling, and output can use the EP2C20Q240C8N's 18,752 LEs and 142 user I/O pins to build line buffers, image filters, and pixel-format conversion logic. The 239,616 RAM bits become FIFO or delay-line storage for moderate-resolution line processing. The 142 pins are sufficient for an 8-bit parallel camera interface plus a display bus and control signals. Cyclone II I/O banks support LVCMOS/LVTTL level standards, simplifying connection to video ADCs and display controllers. For higher-resolution designs requiring wider buses, the 484-ball version of EP2C20 provides more user I/O but does not fit the Q240 footprint and would require a board change.
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Medical Diagnostic Front-End
Medical monitoring and diagnostic systems often need a reconfigurable device for sensor timing, data formatting, and communication functions. The EP2C20Q240C8N's 18,752 logic elements can host finite-impulse-response filters, clock-domain crossing logic, and simple scan controllers for ultrasound or pulse-oximeter front ends. Its 1.2 V core is well suited to mains-isolated low-power instruments. The standard commercial 0 °C to 85 °C range covers most clinical equipment used in temperature-controlled environments; when the device is placed near X-ray or MRI electronics, an industrial-temperature Cyclone II variant is safer. The PQFP package is inspectable with standard rework equipment used in medical service centers.
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Communication Protocol Bridging
As a protocol bridge, the EP2C20Q240C8N uses its 142 user I/O pins to connect UART, SPI, I2C, parallel, and simple serial buses while performing packet buffering and framing. Its 239,616 RAM bits can be arranged as FIFOs or small DMA buffers, and its 18,752 logic elements can implement state machines, protocol decoders, or CRC/checksum logic. The 1.2 V core is isolated from the I/O ring, allowing different I/O voltage domains without many external level shifters. The 240-pin PQFP package is practical for telecom line cards and industrial gateways that need a rework-friendly programmable fabric plus an external EPCS configuration memory for no-host start-up.
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FPGA Prototyping and Education
For university labs and early hardware prototypes, the EP2C20Q240C8N gives students and engineers 18,752 logic elements on a hand-solderable 240-pin PQFP, offering far more capacity than a CPLD. It supports the Quartus II design flow and standard JTAG or active-serial configuration; an EPCS serial device retains the bitstream. QFP packages are easy to inspect under a microscope compared with dense BGAs, making this device a reasonable educational FPGA for digital design courses. The commercial-temperature -8 grade is sufficient for most lab exercises; the part should not be operated beyond 85 °C in a poorly ventilated enclosure. A clean 1.2 V supply and correct I/O voltages must still be provided.
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Digital Logic / Sensor Interface Accelerator
Many sensor systems require preprocessing before a microcontroller can handle real-time data. The EP2C20Q240C8N can absorb parallel sensor streams, perform de-glitching, edge detection, and simple filtering, and reduce interrupt overhead by buffering results in FPGA RAM. The 142 I/O pins allow multiple SPI/parallel sensors to be connected without external muxes, while the 1.2 V core keeps switching power reasonable in portable enclosures. Because the part is configured at power-up by EPCS memory, it can behave as a deterministic hardware front end before firmware boots. This architecture is used in robotics, vending, and industrial sensing where a microcontroller alone cannot service many simultaneous event inputs.
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Önerilen Ürünler Özeti
Mühendislik referans verileri: EP2C20Q240C8N — karşılaştırma, tasarım rehberi ve uyumluluk bilgileri.
Seçim Kılavuzu
Alternatiflerle Karşılaştırma
| Parametre | Bu Ürün | EP2C20Q240C8 | EP2C20Q240C7N | EP2C20Q240I8N | EP2C20Q240C7 | EP2C20Q240I8 |
|---|---|---|---|---|---|---|
| Brand | Altera | Altera | Altera | Altera | Altera | Altera |
| Package | 240-Pin PQFP | 240-Pin PQFP | 240-Pin PQFP | 240-Pin PQFP | 240-Pin PQFP | 240-Pin PQFP |
| FPGA Family | Cyclone II | Cyclone II | Cyclone II | Cyclone II | Cyclone II | Cyclone II |
| Logic Elements | 18752 | 18752 | 18752 | 18752 | 18752 | 18752 |
| Total RAM Bits | 239616 | 239616 | 239616 | 239616 | 239616 | 239616 |
| User I/O Pins | 142 | 142 | 142 | 142 | 142 | 142 |
| Core Voltage | 1.2 V | 1.2 V | 1.2 V | 1.2 V | 1.2 V | 1.2 V |
| Temperature Grade | Commercial 0 °C to 85 °C | Commercial 0 °C to 85 °C | Commercial 0 °C to 85 °C | Industrial -40 °C to 100 °C | Commercial 0 °C to 85 °C | Industrial -40 °C to 100 °C |
| Speed Grade | 8 | 8 | 7 | 8 | 7 | 8 |
| Lead-Free Finish | Yes (N) | No (standard) | Yes (N) | Yes (N) | No (standard) | No (standard) |
Ana Farklılayıcılar
- RoHS-oriented lead-free ordering option (karşılaştırma:EP2C20Q240C8)
- 240-pin QFP is easier to rework than BGA Cyclone II variants (karşılaştırma:EP2C20F484C8N)
- Multiple same-package temperature and speed variants exist (karşılaştırma:EP2C20Q240I8N)
Tasarım Notları
EP2C20Q240C8N has a 1.2 V FPGA core supply (VCCINT), separate I/O supply voltages, and dedicated supply pins for configuration and clocking. Use a low-noise switching or LDO regulator capable of supporting the configured design's estimated core current, and filter the 1.2 V rail with bulk capacitors. Power supply sequencing should follow the Cyclone II requirement that VCCINT and VCCIO ramp without reverse voltage; common practice is to ramp core before I/O or simultaneously. In legacy production, use proven power supervisor ICs because FPGA I/O can power up in an indeterminate state if a supply is absent.
Place a 0.1 uF ceramic capacitor near every VCC and VCCIO pin group, with at least one 10 uF bulk capacitor per board side and additional capacitance near configuration pins. The 240-pin PQFP has a relatively large body, but lead inductance is still significant at high edge rates; each I/O bank should have a dedicated low-impedance path back to the ground plane. For rework-friendly QFP designs, expose vias around the device and follow the manufacturer's pad geometry for the BFQFP outline. A multilayer board with solid ground and separate power planes is strongly recommended for Cyclone II designs.
A common pitfall with Cyclone II designs is leaving configuration pins unconnected or selecting the wrong MSEL configuration scheme. The FPGA SRAM bitstream is volatile, so a serial configuration device (EPCS) or a JTAG download chain is mandatory. Tie dedicated configuration pins such as nCONFIG and nSTATUS according to the Cyclone II Handbook, and never float active-low control pins that cause continuous reconfiguration attempts. Also verify that the 1.2 V core is not powered from an I/O 3.3 V rail; reverse or overvoltage on VCCINT can permanently damage the 90 nm die.
Uyumluluk Bilgisi
The N suffix in the Altera part number indicates a lead-free finish, and the part is commonly listed as RoHS compliant by distributors. Full REACH/halogen/conflict-minerals declarations were not present in the verified web data and should be requested from the supplier for formal compliance documentation.
