EP2C8F256C8 - Cyclone II FPGA, 8K LEs, 256-LBGA | Intel (Altera)
MPN: EP2C8F256C8 ✗ Cuối đờiEP2C8F256C8 Tóm tắt
A Field Programmable Gate Array (FPGA) is a semiconductor device whose digital logic, interconnect, and I/O behavior are defined by user-supplied configuration data rather than at the fab. FPGAs sit at the top of the programmable logic taxonomy: programmable logic -> PLD -> CPLD -> FPGA, and they are widely used as glue logic, accelerator fabric, and DSP co-processors alongside microcontrollers and ASICs. The Cyclone II family specifically targets cost-sensitive high-volume applications such as consumer electronics, industrial control, and display bridging.
Key features of the EP2C8F256C8 include 8,256 logic elements (LEs), 165,888 bits (~20 Kbytes) of embedded M4K memory blocks, 36 embedded 18 x 18 multipliers for DSP operations, four phase-locked loops (PLLs) for clock management, and 182 maximum user I/O pins. The device supports multiple I/O standards including LVTTL, LVCMOS, PCI, SSTL, and LVDS, providing flexibility for mixed-voltage system designs. Configuration is via active serial (AS), passive serial (PS), or JTAG interfaces, allowing fast prototyping and field updates.
Architecturally, Cyclone II FPGAs use 4-input look-up tables (LUT4) and a routing fabric optimized for the 90 nm process node. The M4K memory blocks can be configured as RAM, ROM, or FIFO with true dual-port capability, and the embedded multipliers handle DSP tasks such as FIR filters and FFT butterflies without burning logic resources. The four PLLs provide clock multiplication, division, phase shifting, and zero-delay buffering, which simplifies board-level clock tree design.
Typical applications include industrial motor control, video processing and display bridges, automotive infotainment pre-processing, low-cost ASIC prototyping, communications line cards, and portable consumer devices. The wide I/O count and embedded DSP blocks make the EP2C8F256C8 especially well suited for parallel sensor aggregation and mid-density glue-logic functions.
Designers should note that the Cyclone II family is a mature node - designers targeting new designs should evaluate the current Cyclone IV/V/10 families for active support. When designing with this device, ensure that the configuration mode pins are pulled to the correct state at power-up and that the JTAG chain is properly terminated to avoid boundary-scan failures. The 256-LBGA FineLine BGA package requires careful PCB layout to manage routing density and thermal dissipation.
This page synthesizes distributor pricing, drop-in alternatives within the Cyclone II family, and practical design notes not found in the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho EP2C8F256C8 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với EP2C8F256C8 (cùng hình factor và footprint) — khác nhau ở Package, Speed Grade, RoHS Status, Process Technology, Operating Temperature.
EP2C8F256C8N
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EP2C8F256C7N
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EP2C8F256C7
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EP2C8F256C6N
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EP2C8F256C6
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EP2C8AF256I8N
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EP2C8AF256A7N
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EP2C8F256C8 Tỷ lệ tối đa & tính chất điện
| Family | Cyclone II |
| Logic Elements (LEs) | 8,256 |
| Embedded Memory Bits | 165,888 bits |
| Embedded Memory Blocks | M4K |
| Embedded 18 x 18 Multipliers | 36 |
| Maximum User I/O Pins | 182 |
| PLLs | 4 |
| Process Node | 90 nm |
| Core Voltage | 1.2 V |
| Operating Temperature (C8) | 0 C to +85 C |
| Hộp | 256-LBGA FineLine BGA |
| Kiểu lắp đặt | Surface Mount |
| Configuration Modes | AS, PS, JTAG |
| Trạng thái RoHS | Compliant (per DigiKey listing) |
| Speed Grade | 8 (C8 suffix) |
Hướng dẫn cấu hình chân EP2C8F256C8 256-lbga fineline bga
Cấu hình chân cho EP2C8F256C8 (256-lbga fineline bga gói). IC số này bao gồm chân GPIO, giao diện truyền thông (UART, SPI, I2C) và chân nguồn. Tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết các chức năng chân thay thế và tùy chọn cấu hình. Cực kỳ quan trọng cho thiết kế hệ thống tích hợp và lập trình PCB.
Không có dữ liệu chân cụ thể sẵn có cho EP2C8F256C8.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
EP2C8F256C8 phù hợp cho 6 Áp dụngs: Industrial Motor Control, Video Processing and Display Bridges, ASIC Prototyping and Design Verification, Communications Line Cards and Protocol Bridging, Automotive Infotainment Pre-Processing, Portable Consumer Devices and Display Controllers.
Industrial Motor Control
The EP2C8F256C8 is widely used in industrial motor control because its 182 user I/O pins provide abundant channels for multi-axis PWM generation, encoder feedback (QEP inputs), and resolver excitation. The 36 embedded 18x18 multipliers accelerate field-oriented control (FOC) and Park/Clarke transforms with sub-microsecond latency, while the 4 PLLs generate the precise switching frequencies (10-50 kHz typical for IGBT drive) needed for sinusoidal commutation. The 256-LBGA package handles the high I/O density without requiring package fan-out tricks, and the 8,256 LEs comfortably fit state-machine sequencing, fault handling, and CAN/RS-485 protocol stacks. Designers commonly pair the EP2C8F256C8 with external gate drivers and current-sense ADCs, using its LVDS inputs for high-speed encoder interfaces. Commercial C8 grade (0 C to +85 C) is sufficient for cabinet-mounted drives with moderate thermal rise.
Được đề xuất
Video Processing and Display Bridges
The EP2C8F256C8 is a popular choice for video format conversion (e.g., RGB->LVDS, parallel-to-HDMI bridges) because its 182 user I/O pins can absorb wide parallel video buses (24-bit RGB + clock + sync = ~30 pins per channel). The 165,888 bits of embedded M4K memory are sufficient for line buffers used in de-interlacing and scaling algorithms, while the 36 embedded 18x18 multipliers handle polyphase filter taps for scaling. Designers commonly use the device to bridge legacy camera/sensor outputs to modern MIPI or HDMI displays, with the 4 PLLs synthesizing pixel clocks at 25-148.5 MHz. The 256-LBGA package's high ball count supports both the wide video bus and the I2C/SPI control channels needed for display configuration. Pair with an external HDMI transceiver and the EP2C8 handles all timing and frame buffer management.
Được đề xuất
ASIC Prototyping and Design Verification
Engineers use the EP2C8F256C8 for ASIC prototyping because its 8,256 logic elements and 36 multipliers fit most mid-complexity ASIC RTL designs, while the 182 I/O count supports typical SoC peripheral multiplexing. The Cyclone II architecture uses 4-input LUTs and predictable routing, which simplifies timing closure compared to more modern FPGAs. Designers port their RTL from ASIC synthesis to Quartus II, achieving reasonable timing correlation for pre-silicon validation. The 256-LBGA package is large enough to support comprehensive prototyping headers and is available on standard development boards (e.g., Altera Cyclone II starter kits). For prototype builds, the C6 or C7 speed grade variants are recommended to achieve faster Fmax than the C8 baseline. JTAG configuration allows rapid bitstream reload during debug.
Được đề xuất
Communications Line Cards and Protocol Bridging
In telecom and datacom line cards, the EP2C8F256C8 handles low-density glue logic, protocol conversion, and clock domain crossing between backplane SERDES and parallel data paths. Its 4 PLLs provide flexible clock synthesis for TDM, I2S, and SPI-style audio buses, while 36 embedded multipliers support FEC and scrambling operations. The 182 user I/O count accommodates multiple low-voltage differential signaling (LVDS) channels at data rates up to several hundred Mbps. Designers commonly pair the EP2C8F256C8 with an external PHY or framer for E1/T1/J1 bridging or for backplane glue logic between line cards and switch fabric ASICs. The 165,888 bits of M4K memory buffer packets or cell payloads without requiring external SRAM.
Được đề xuất
Automotive Infotainment Pre-Processing
The EP2C8AF256I8N (industrial/automotive-grade sibling) is well-suited for automotive infotainment pre-processing tasks such as CAN/LIN gatewaying, audio sample-rate conversion, and simple HMI state machines. Although the EP2C8F256C8 (commercial C8 grade) is itself not automotive qualified, the same die in the 256-LBGA package is offered in I8 industrial and A7 AEC-Q100 variants that share the same pin map. In an infotainment head unit, the FPGA aggregates multiple audio sources, performs volume/tone control, and routes data to the main SoC. Its 36 multipliers handle audio mixing and EQ filter math in real time. The 256-LBGA package supports the high I/O density required for multiple audio buses, touch-panel interfaces, and backlight PWM control.
Được đề xuất
Portable Consumer Devices and Display Controllers
In portable consumer products such as handheld test instruments, portable medical devices, and small-form-factor displays, the EP2C8F256C8 delivers just enough logic and I/O to drive TFT LCDs, scan keypads, and run light DSP tasks while keeping BOM cost low. Its 1.2 V core voltage is compatible with battery-powered designs when paired with a small buck regulator, and the 256-LBGA package supports mixed I/O standards (LVTTL/LVCMOS) for legacy peripherals. Designers use the 4 PLLs to derive LCD pixel clocks and audio clocks from a single low-frequency crystal. The 8,256 LEs handle UI state machines, font rendering pipelines, and simple graphics effects. For handheld designs, the C7 or C6 speed grade variants offer faster pixel clock support at the same pinout.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho EP2C8F256C8 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | EP2C8F256C8N | EP2C8F256C7N | EP2C8F256C6N | EP2C8AF256I8N | EP2C8AF256A7N |
|---|---|---|---|---|---|---|
| Package | 256-LBGA (F256) | 256-LBGA (F256) | 256-LBGA (F256) | 256-LBGA (F256) | 256-LBGA (F256) | 256-LBGA (F256) |
| Brand | Intel (Altera) | Intel (Altera) | Intel (Altera) | Intel (Altera) | Intel (Altera) | Intel (Altera) |
| Logic Elements | 8,256 | 8,256 | 8,256 | 8,256 | 8,256 | 8,256 |
| Embedded Memory Bits | 165,888 | 165,888 | 165,888 | 165,888 | 165,888 | 165,888 |
| Embedded Multipliers (18x18) | 36 | 36 | 36 | 36 | 36 | 36 |
| Speed Grade | C8 (slowest) | C8 (slowest) | C7 (~15% faster than C8) | C6 (~25% faster than C8) | I8 (industrial temp, C8 speed) | A7 (automotive temp, C7 speed) |
| Operating Temperature Range | 0 C to +85 C (Commercial) | 0 C to +85 C (Commercial) | 0 C to +85 C (Commercial) | 0 C to +85 C (Commercial) | -40 C to +100 C (Industrial) | -40 C to +125 C (Automotive) |
| Lead-Free Finish (N suffix) | No (legacy) | Yes (Pb-free) | Yes (Pb-free) | Yes (Pb-free) | Yes (Pb-free) | Yes (Pb-free) |
| Automotive Qualification (AEC-Q100) | No | No | No | No | No (industrial only) | Yes (AEC-Q100) |
Bảo phân biệt quan trọng
- Lowest-cost Cyclone II commercial grade in 256-LBGA (vsEP2C8F256C8N)
- Up to 25% timing margin improvement with same package (vsEP2C8F256C6N)
- Industrial and automotive qualified drop-in variants exist (vsEP2C8AF256I8N / EP2C8AF256A7N)
Ghi chú thiết kế
The 256-LBGA FineLine BGA package requires a 4-layer PCB at minimum with continuous GND and PWR planes for the entire BGA field. Use 0.20 mm (8 mil) trace-and-space with microvia-in-pad technology for breakout; via-in-pad requires fill-and-cap for reliable assembly. Allocate at least 4 GND balls distributed across the package to provide a low-impedance return path, and stitch the inner planes with a 1.0-1.5 mm pitch GND via fence around the BGA perimeter to suppress simultaneous-switching-noise (SSN) on the LVDS/PCI outputs. The C8 speed grade is the slowest Cyclone II grade - if your Fmax target is above ~150 MHz internal, choose the C6 or C7 variant from this same package.
The EP2C8F256C8 requires four power rails: VCCINT (1.2 V core), VCCIO banks (1.5 V / 1.8 V / 2.5 V / 3.3 V per bank), VCC_PLL (1.2 V analog for the 4 PLLs), and VCCPD (3.3 V pre-driver). Each PLL VCC pin must be decoupled with a 0.1 uF ceramic cap plus a 10 uF bulk cap within 5 mm of the pin, and the VCC_PLL trace must be filtered with a ferrite bead to isolate analog noise from the digital core. Estimated: at 100% resource utilization with all 182 I/O switching at 50 MHz, total device current reaches ~1.0 A on VCCINT and ~0.5-1.0 A on VCCIO depending on I/O standard. Provide a 4-layer board with at least 1 oz copper on inner planes for adequate current delivery.
Cyclone II is in NRND status - if you are starting a new design, evaluate the Cyclone IV E (EP4CE8F256C8N, same 256-BGA footprint but active) or Cyclone 10 LP family instead. For existing designs, the EP2C8F256C8 (without N suffix) is a legacy lead finish; for new RoHS-compliant production use the EP2C8F256C8N. Configuration mode pins MSEL[3:0] must be pulled to the correct state for AS/PS/JTAG mode at power-up - misconfiguration results in a 'configuration failed' error. The JTAG TCK pin requires a 1 kohm pull-down if unused; floating TCK can cause boundary-scan failures during board test.
Thông tin tuân thủ
EP2C8F256C8 is the legacy non-leaded (non-N) finish variant. For RoHS compliance, choose the EP2C8F256C8N. The 'A' suffix variants (EP2C8AF256I8N / EP2C8AF256A7N) are AEC-Q100 qualified. RoHS/REACH status not explicitly stated in provided verified web data - flagged as unknown.
