EP20K400CB652I8ES - 400K Gates APEX-20KC FPGA | Intel / Altera
MPN： EP20K400CB652I8ES ✗ 停產EP20K400CB652I8ES 概覽
An FPGA (Field-Programmable Gate Array) is a reprogrammable integrated circuit whose logic function is defined after manufacturing through a configuration bitstream, sitting in the broader taxonomy of programmable logic devices (PLD -> CPLD/FPGA -> SRAM-based FPGA). APEX-20KC devices extend basic FPGA fabric with MultiCore interconnect and embedded CAM, enabling applications such as ATM switching, PCI bridging, and high-speed data routing that previously required discrete ASICs.
Key features of the EP20K400CB652I8ES include 16640 logic elements organized into 1664 Logic Array Blocks (LABs), 212,992 bits of embedded SRAM (approximately 26 KB distributed across the fabric), 488 user I/O pins, and an industrial-grade temperature range of -40 °C to +100 °C. The device supports JTAG-based configuration via the IEEE 1149.1 boundary-scan interface and uses the APEX MultiCore interconnect for predictable timing across high-fanout nets.
The APEX-20KC architecture combines a fine-grained LUT fabric with MegaLAB columns, allowing integration of wide datapath functions alongside random logic. With 488 user I/Os available on the CB652 BGA, designers can support multiple parallel bus interfaces (e.g., 64-bit PCI at 66 MHz plus a separate memory channel) on a single device. The device family supports densities from 100K to 1500K gates, with the EP20K400 sitting in the upper-middle range.
Typical applications for the EP20K400CB652I8ES include telecommunications line cards, ATM packet processors, custom PCI/PCI-X bus bridges, network switches and routers, digital signal processing front-ends, and industrial control systems. Its high I/O count makes it especially suitable for multi-protocol interface bridging and parallel data-acquisition systems.
When designing with this device, observe Altera (now Intel PSG) configuration guidelines: drive nCONFIG low to initiate configuration, use a 100 µF decoupling cap array distributed across the I/O banks, and respect the simultaneous-switching output (SSO) budget of the 652-ball BGA. This page synthesizes distributor inventory, drop-in speed/pinout variants, and packaging options not present in the original 652-BGA datasheet excerpt.
直接替換替代品，適用於 EP20K400CB652I8ES — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： EP20K400CB652I8ES （相同外形與佔位） — 差異在於 Package, Process Technology, Operating Temperature, Speed Grade, System Gates.
EP20K400CB652I7
✅ 直接替換聯絡詢價
查看資料表 →EP20K400CB652C7ES
✅ 直接替換聯絡詢價
查看資料表 →EP20K400CB652C9ES
✅ 直接替換聯絡詢價
查看資料表 →EP20K400CB652C9N
✅ 直接替換聯絡詢價
查看資料表 →EP20K400CB652C9
✅ 直接替換聯絡詢價
查看資料表 →EP20K400CB652C8N
✅ 直接替換聯絡詢價
查看資料表 →EP20K400CB652I8ES 最大額定值與電氣特性
| Product Family | APEX 20KC |
| Logic Elements | 16640 |
| System Gates | 1052000 |
| Logic Array Blocks (LABs) | 1664 |
| Embedded Memory (RAM bits) | 212992 |
| User I/O Pins | 488 |
| Maximum Operating Frequency | 301.21 MHz |
| Process Technology | 0.15 µm CMOS |
| Core Supply Voltage | 1.8 V |
| 封裝 | 652-ball BGA |
| 安裝類型 | Surface Mount |
| 工作溫度 | -40 °C to +100 °C (junction) |
| Configuration Interface | JTAG (IEEE 1149.1) + serial/parallel |
| Temperature Grade | Industrial (-40 °C to +100 °C TJ) |
EP20K400CB652I8ES 腳位配置
| 腳位 B1 | I/O Bank 1 — User I/O - Bank 1 (general purpose) |
| 腳位 B2 | I/O Bank 1 — User I/O - Bank 1 |
| 腳位 C1 | I/O Bank 2 — User I/O - Bank 2 |
| 腳位 AA1 | I/O Bank 8 — User I/O - Bank 8 |
| 腳位 AB1 | GND — Ground reference |
| 腳位 AB2 | VCCINT — Core supply (1.8 V) |
| 腳位 AC1 | VCCIO — I/O supply (bank-dependent) |
| 腳位 AC2 | nCONFIG — Configuration control (active-low) |
| 腳位 D24 | nSTATUS — Configuration status (active-low) |
| 腳位 E25 | TCK — JTAG clock |
| 腳位 F25 | TDI — JTAG data in |
| 腳位 G25 | TMS — JTAG mode select |
| 腳位 H25 | TDO — JTAG data out |
| 腳位 J25 | DCLK — Configuration clock |
| 腳位 K25 | DATA0 — Configuration data input bit 0 |
| 腳位 L24 | MSEL0 — Configuration mode select 0 |
| 腳位 L25 | MSEL1 — Configuration mode select 1 |
| 腳位 M25 | CONF_DONE — Configuration complete (open-drain) |
| 腳位 Y25 | GND — Ground reference |
| 腳位 Y26 | I/O Bank 7 — User I/O - Bank 7 (periphery) |
典型應用
EP20K400CB652I8ES 適用於 6 應用s: Telecommunications Line Card, PCI / PCI-X Bus Bridge, Industrial Control and Data Acquisition, Custom Network Switch / Router Fabric, DSP / Co-Processor Front-End, Legacy System Sustainment / Drop-In Repair.
Telecommunications Line Card
The EP20K400CB652I8ES is well-suited to telecom line-card designs where 488 user I/Os allow direct connection to multiple STS-1/STM-1 framers, UTOPIA-II interfaces, and H.110 backplanes. Its 16640 logic elements and 212,992 bits of embedded RAM enable on-chip ATM cell buffering and look-up-table-based routing without external memory for moderate cell rates. Compared to an ASIC, this FPGA offers rapid NPI for varying telecom protocols (E1/T1, DS3, OC-3) and supports in-system reconfiguration via JTAG for field upgrades.
推薦
PCI / PCI-X Bus Bridge
With 488 I/Os and ample logic density, the EP20K400CB652I8ES implements 64-bit/66 MHz PCI-X bus bridges and protocol converters between legacy PCI peripherals and modern host fabrics. The MultiCore interconnect provides predictable timing for high-fanout arbiter logic, while embedded RAM blocks serve as posted-write buffers. The 1.8 V core and 3.3 V-tolerant I/O banks (per APEX 20KC VCCIO options) make it a drop-in for retrofits of PCI-X systems designed around Intel/Altera's legacy dev kits.
推薦
Industrial Control and Data Acquisition
Industrial control systems benefit from the EP20K400CB652I8ES's industrial -40 °C to +100 °C temperature range, high logic density, and 488 I/Os that map directly to multi-channel ADC/DAC front-ends, encoder counters, and parallel GPIO banks. The fabric's CAM blocks enable fast pattern-matching for protocol decoding (Modbus, CANopen, PROFIBUS) without external lookup RAM. Engineers appreciate the FPGA's deterministic latency for real-time control loops and its robustness in noisy factory environments.
推薦
Custom Network Switch / Router Fabric
Network switch fabrics for prototyping benefit from the EP20K400CB652I8ES's 488 I/Os to fan out multiple Gigabit Ethernet PHYs and SERDES channels, while the 16640 logic elements implement custom packet-classification tables. The 212,992 bits of embedded RAM hold small L2 forwarding tables without external TCAM, accelerating packet lookup paths. This combination makes the part ideal for low-volume custom switch designs and academic research networks where ASIC NRE is impractical.
推薦
DSP / Co-Processor Front-End
Digital signal processing front-ends use the EP20K400CB652I8ES to implement parallel FIR filters, FFT pre-processors, and data-rate converters before handing off to external DSP or ASIC blocks. The 488 I/Os support wide LVDS/LVCMOS data buses running at sample rates consistent with the 301.21 MHz maximum internal frequency, while embedded RAM acts as dual-port buffer between input sample streams and DSP blocks. Engineers favor this FPGA for medical imaging, sonar, and instrumentation front-ends.
推薦
Legacy System Sustainment / Drop-In Repair
For sustainment of legacy systems originally designed around APEX 20KC FPGAs, the EP20K400CB652I8ES (and its same-package speed-grade variants) is used to replace failed units without board redesign. Defense, medical, and industrial automation customers qualify the part for long-life-cycle programs where re-validation cost dominates over unit price. Authorized distributors continue to stock NOS (new-old-stock) lots for these programs as of 2026-09-08.
推薦
推薦產品摘要
工程參考資料，適用於 EP20K400CB652I8ES — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | EP20K400CB652I7 | EP20K400CB652C7ES | EP20K400CB652C9ES | EP20K400CB652C9N | EP20K400CB652C9 | EP20K400CB652C8N |
|---|---|---|---|---|---|---|---|
| Package | 652-BGA | 652-BGA - same | 652-BGA - same | 652-BGA - same | 652-BGA - same | 652-BGA - same | 652-BGA - same |
| Brand | Intel (formerly Altera) | Intel | Intel | Intel | Intel | Intel | Intel |
| Logic Elements | 16640 | 16640 | 16640 | 16640 | 16640 | 16640 | 16640 |
| Speed Grade | I8ES | I7 (faster) | C7ES (commercial) | C9ES (fastest) | C9N (fastest, lead-free) | C9 (fastest) | C8N (lead-free) |
| Temperature Grade | Industrial (-40 to +100 °C TJ) | Industrial | Commercial | Commercial | Commercial | Commercial | Commercial |
| User I/O Pins | 488 | 488 | 488 | 488 | 488 | 488 | 488 |
| Embedded RAM (bits) | 212992 | 212992 | 212992 | 212992 | 212992 | 212992 | 212992 |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
主要差異化特點
- Highest gate density within the 652-BGA APEX 20KC sub-family (對比EP20K200CB652I8 (lower-density APEX 20KC sibling))
- Industrial temperature rating for harsh-environment deployments (對比EP20K400CB652C7ES (commercial-grade speed variant))
- Speed-grade balance for cost-sensitive retrofits (對比EP20K400CB652I7 (faster industrial speed grade))
設計說明
Estimated: at typical usage (60% logic utilization, 100 MHz internal clock), EP20K400CB652I8ES draws roughly 0.8-1.2 A from the 1.8 V VCCINT rail, giving about 1.5-2.2 W of core power dissipation. Add 0.5-1.0 A total across the VCCIO banks for switching I/Os. Place a minimum 100 µF of bulk decoupling near the BGA plus 0.1 µF and 0.01 µF ceramics within 5 mm of the package. Verify VCCINT ramp time is between 1 ms and 100 ms for proper configuration.
Estimated: the 652-BGA package has a theta-JA of approximately 8-12 °C/W with 4-layer PCB and adequate thermal vias. At 2 W total dissipation and 70 °C ambient, junction temperature rises about 16-24 °C above ambient, keeping TJ below the 100 °C industrial limit. For high-IO switching loads, ensure at least 4 thermal vias (0.3 mm drill, 1 oz copper) under the die-attached center balls.
Route all eight I/O banks independently with separate VCCIO planes - mixing 3.3 V and 2.5 V I/O standards on the same bank can cause latch-up. Keep JTAG chain signals (TCK, TMS, TDI, TDO) on an inner layer with a ground guard on both sides to avoid noise injection during configuration. Maintain 50 Ω characteristic impedance on high-speed SERDES-equivalent LVDS lanes.
Do not float nCONFIG or nSTATUS - both require 10 kΩ pull-ups to VCCINT. The MSEL pins must be tied to a fixed logic level for the desired configuration mode; leaving them floating causes intermittent configuration failure. After power-up, the CONF_DONE pin must transition high within 250 ms or the design is considered failed and a re-config is required.
合規資訊
RoHS, REACH, lead-free and halogen-free status for EP20K400CB652I8ES were not present in the verified web data; set to unknown and recommend checking the manufacturer product page or distributor compliance documentation directly.