EP20K400FI784-2 - 400K Gate APEX 20K FPGA, 784-BGA | Altera
MPN: EP20K400FI784-2 ✗ Cuối đờiEP20K400FI784-2 Tóm tắt
Bộ thay thế dễ dàng lắp đặt cho EP20K400FI784-2 — 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 EP20K400FI784-2 (cùng hình factor và footprint) — khác nhau ở Process Technology, Speed Grade, Package, Logic Elements, Family.
EP20K400FI784-1
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EP20K400FC784-2
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EP20K400FC784-3
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EP20K400FC784-1
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EP20K400FI784-2 Tỷ lệ tối đa & tính chất điện
| Device Family | APEX 20K |
| Typical Gates | 400,000 |
| Dedicated Inputs | 4 |
| Nominal Core Supply Voltage (VCCINT) | 2.5 V |
| VCCINT Range | 2.375 V to 2.625 V |
| Speed Grade | -2 |
| Khoảng nhiệt độ hoạt động | -40 °C to +100 °C |
| Package Type | S-PBGA-B784 (FineLine BGA) |
| Package Pin Count | 784 balls |
| Ball Pitch | 1.000 mm |
| Kiểu lắp đặt | Surface Mount |
| Device Form Factor | Loadable PLD |
| Configuration Memory | SRAM-based (volatile) |
Hướng dẫn cấu hình chân EP20K400FI784-2 784 balls
Cấu hình chân cho EP20K400FI784-2 (784 balls 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 EP20K400FI784-2.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
EP20K400FI784-2 phù hợp cho 6 Áp dụngs: Telecom Backplane Glue Logic, Industrial Control and Factory Automation, Legacy ASIC Replacement, Medical Imaging Data Aggregation, Test and Measurement Instrumentation, Legacy Networking Line Cards.
Telecom Backplane Glue Logic
The EP20K400FI784-2 fits telecom backplane glue-logic designs where approximately 400K gates are needed to bridge bus protocols, perform CRC/framing, and aggregate low-speed control planes. Its 784-ball BGA provides abundant user I/O for 32-bit or 64-bit parallel buses, while the industrial -40 to +100 °C range tolerates uncontrolled cabinet temperatures. Designers typically instantiate multiple LVTTL/LVCMOS I/O banks and use the embedded system blocks (ESBs) as small FIFOs or parity RAM.
Được đề xuất
Industrial Control and Factory Automation
Factory automation controllers benefit from the EP20K400FI784-2's combination of approximately 400K gates, embedded RAM for fast look-up tables, and industrial-grade temperature tolerance. Engineers use the APEX 20K device to implement deterministic state machines, encoder/decoder logic for fieldbus protocols, and safety interlocks. The FineLine BGA-784 with 1.0 mm pitch requires a 6+ layer PCB with microvias, which is standard for industrial controller mainboards already designed for high-density BGA logic.
Được đề xuất
Legacy ASIC Replacement
The EP20K400FI784-2 is widely used to replace obsolete ASICs in long-lifecycle programs such as avionics retrofit, military radio, and railway signaling. With approximately 400K gates, designers port netlists from gate-level ASIC tools into Quartus II, preserving logic equivalence while gaining supply-chain resilience. The 2.5 V VCCINT matches older ASIC rails, simplifying power-tree reuse, and the 784-ball BGA offers sufficient I/O for wide memory buses (SRAM, FIFO) common in legacy designs.
Được đề xuất
Medical Imaging Data Aggregation
Medical imaging carts and bedside monitors use the EP20K400FI784-2 to aggregate multiple sensor streams (CCD/CMOS imagers, ultrasound probes) before forwarding compressed data over USB or Ethernet. The APEX 20K's ESB blocks provide fast dual-port RAM for line buffering, while the LUT fabric performs lossless compression and packetization. The industrial temperature range accommodates equipment that warms during continuous imaging. Note: medical safety certification requires additional system-level design; this part is not AEC-Q100 qualified.
Được đề xuất
Test and Measurement Instrumentation
Test and measurement instruments (oscilloscope digitizers, logic analyzers, protocol exercisers) leverage the EP20K400FI784-2 for pattern generation, custom triggering, and high-speed serial protocol decoding. With approximately 400K gates the device can implement parallel data acquisition state machines alongside protocol-aware search engines. The 784-ball FineLine BGA delivers enough user I/O to interface with multi-channel ADC front ends at rates up to 200 MHz when paired with external clock management.
Được đề xuất
Legacy Networking Line Cards
Multi-service edge routers and SDH/SONET line cards deployed in the early 2000s use the EP20K400FI784-2 for cell/packet processing, traffic shaping, and overhead processing. Although modern designs use newer Cyclone or Stratix families, the part remains in service for backward-compatible line-card spares. The 2.5 V VCCINT and 784-ball BGA match existing line-card PCB artwork, allowing direct swap into legacy platforms without re-spin.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho EP20K400FI784-2 — 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 | EP20K400FI784-1 | EP20K400FC784-2 | EP20K400FC784-3 | EP20K400FC784-1 |
|---|---|---|---|---|---|
| Brand | Altera | Altera | Altera | Altera | Altera |
| Package | FineLine BGA-784 (S-PBGA-B784, 1.0 mm pitch) | FineLine BGA-784 (same) | FineLine BGA-784 (same) | FineLine BGA-784 (same) | FineLine BGA-784 (same) |
| Typical Gates | 400,000 | 400,000 | 400,000 | 400,000 | 400,000 |
| Speed Grade | -2 (mid) | -1 (fastest) | -2 (mid) | -3 (slowest) | -1 (fastest) |
| Temperature Range | -40 °C to +100 °C (industrial) | -40 °C to +100 °C (industrial) | 0 °C to +70 °C (commercial) | 0 °C to +70 °C (commercial) | 0 °C to +70 °C (commercial) |
| Core Voltage (VCCINT) | 2.5 V nominal (2.375-2.625 V) | 2.5 V nominal (same) | 2.5 V nominal (same) | 2.5 V nominal (same) | 2.5 V nominal (same) |
| Dedicated Inputs | 4 | 4 | 4 | 4 | 4 |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
Bảo phân biệt quan trọng
- Speed grade -2 offers better timing margin vs -3 for moderate-speed designs (vsEP20K400FC784-3)
- Industrial temperature range supports harsh-environment deployment (vsEP20K400FC784-2 (commercial))
- Same 784-ball BGA as speed-grade -1 enables drop-in performance upgrade (vsEP20K400FI784-1)
Ghi chú thiết kế
The APEX 20K core requires a tightly regulated 2.5 V supply (range 2.375-2.625 V). Use a low-dropout regulator such as a TPS7A4533 followed by a ferrite bead network feeding the VCCINT pins. Place 100 µF tantalum bulk plus 0.1 µF X7R ceramic bypass capacitors within 100 mil of each VCCINT pin group; APEX 20K power integrity is sensitive to simultaneous switching noise on the parallel core rails.
Although APEX 20K static power is modest, dynamic power scales with toggle rate and can push junction temperatures high in dense designs. The 784-ball FineLine BGA uses a thermal-enhanced lid; thermal pad must be soldered to a flooded copper plane on the top PCB layer with thermal vias to inner ground planes. Derate to 70 percent of rated I/O toggle rate if ambient exceeds 70 °C.
The 1.000 mm pitch FineLine BGA-784 requires a multilayer PCB (at least 6 layers) with microvia or via-in-pad technology to fan out the interior balls. Use 4-mil line/space on outer layers and 1 oz copper inner planes. Follow the APEX 20K package-out reference design from Altera for breakout patterns - non-standard escape routing causes signal-integrity failures on LVDS and SSTL pairs.
Estimated: configuration PROMs must be sized for compressed bitstreams. EP20K400 compressed bitstreams typically fit in an EPC2 (2 Mbit) but only marginally - leave 30 percent headroom. A common pitfall is forgetting nCONFIG or nSTATUS pull-up resistors; if omitted the device fails to enter user mode and stays tri-stated. Always verify JTAG IDCODE before mass production to catch counterfeit or remarked parts.
Use series termination on all LVTTL outputs driving traces longer than 1 inch to match the APEX 20K I/O impedance of approximately 50 ohms. For SSTL2/SSTL3 memory interfaces, route clock and DQS to within 50 mil of matching length to avoid setup/hold violations. Do not share VCCIO banks between 3.3 V LVCMOS and 2.5 V SSTL - this is a frequent board-spin cause.
Thông tin tuân thủ
RoHS/REACH compliance not verified in provided web data; APEX 20K family predates many modern compliance requirements. AEC-Q100 is not applicable (FPGA, not automotive-grade qualified). For new automotive designs, do not select this part.
