EP2C35U484I8 - Cyclone II FPGA, 33K LEs, 484-FBGA | Altera/Intel
料号： EP2C35U484I8 ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $85 | $85.00 |
| 10 | $78 | $780.00 |
| 100 | $68.5 | $6,850.00 |
| 500 | $62 | $31,000.00 |
| 1,000 | $55 | $55,000.00 |
EP2C35U484I8 概述
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.
直接替换替代料： EP2C35U484I8 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： EP2C35U484I8 （相同外形与封装尺寸） ——差异在于 Operating Temperature, Package, Speed Grade, RoHS Status, Total RAM Bits.
快速对比工具——选择替代料号进行并排对比：
EP2C35U484C8N
✅ 直接替换✓ 有现货
$64.8 / 个
查看数据手册 →EP2C35U484C8
✅ 直接替换✓ 有现货
$92.4 / 个
查看数据手册 →EP2C35U484C7N
✅ 直接替换✓ 有现货
$67.8 / 个
查看数据手册 →EP2C35U484C7
✅ 直接替换✓ 有现货
$108.5 / 个
查看数据手册 →EP2C35U484C6N
✅ 直接替换✓ 有现货
$115.2 / 个
查看数据手册 →EP2C35U484C6
✅ 直接替换✓ 有现货
$106.22 / 个
查看数据手册 →EP2C35U484I8 最大额定值与电气特性
| Family | Cyclone II |
| Logic Elements (LEs) | 33216 |
| Embedded Memory (bits) | 483840 |
| Embedded 18x18 Multipliers | 35 |
| Logic Array Blocks / LABs | 2076 |
| PLLs | 4 |
| Maximum User I/O | 322 |
| 封装 | 484-FBGA (U484, 19x19 mm FineLine BGA) |
| Process Technology | 90 nm low-power CMOS |
| 工作结温 | -40C to +100C (industrial) |
| Speed Grade | I8 (industrial, 8th speed bin) |
| Configuration Modes | Passive Serial, Active Serial, JTAG |
| Supply Voltage (Core) | 1.2 V |
| Supply Voltage (I/O Banks) | 1.5 V / 1.8 V / 2.5 V / 3.3 V |
| 安装类型 | Surface Mount (BGA) |
EP2C35U484I8 484-fbga (u484, 19x19 mm fineline bga) 引脚配置指南
EP2C35U484I8（484-fbga (u484, 19x19 mm fineline bga) 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： EP2C35U484I8.
请参阅 数据手册 以查看完整引脚配置。
典型应用
EP2C35U484I8 适用于 6 应用s: Industrial Motor Control, Telecom Line-Card Glue Logic, Video Processing and Image Aggregation, PCI Express Endpoint Bridge, Embedded Nios II Soft-Processor System, Test & Measurement Instrumentation Front-End.
Industrial Motor Control
The EP2C35U484I8 is well-suited to industrial motor-control applications because its 322 user I/O pins aggregate encoder feedback (QEP), Hall sensors, PWM control lines, and fieldbus interfaces (RS-485, CAN) without external muxing. The 33,216 logic elements comfortably implement space-vector PWM, PID controllers, and field-oriented control (FOC) state machines. Industrial -40C to 100C junction range and 4 PLLs simplify generation of multi-axis PWM at 10-20 kHz switching. Pair with the EPCS64 configuration device for failsafe boot.
推荐
Telecom Line-Card Glue Logic
In telecom line cards, the EP2C35U484I8 bridges backplane SERDES to local TDM buses, performs HDLC framing, and arbitrates channelized traffic. The 322 user I/O pins and LVDS support cleanly fan out to multiple SFP cages, while 35 hardware 18x18 multipliers accelerate Reed-Solomon / CRC engines at line rate. The 4 PLLs generate independent clock domains for T1/E1, 1 GbE, and backplane. Hot-socketing allows live service insertion in redundant chassis designs.
推荐
Video Processing and Image Aggregation
The EP2C35U484I8 fits multi-camera video aggregation systems by ingesting parallel ITU-R BT.656 or LVDS camera data and outputting HDMI or composite streams. 483,840 embedded RAM bits cache multiple video frames at QVGA to VGA resolution, eliminating an external frame buffer. Hardware multipliers handle motion-estimation and scaling algorithms. Industrial temperature ensures operation in outdoor digital-signage and machine-vision enclosures.
推荐
PCI Express Endpoint Bridge
Pairing the EP2C35U484I8 with a PIPE-compliant external PHY (e.g., TI XIO1100), designers implement a single-lane Gen1 PCIe endpoint using Altera's PCIe soft IP. The 33K LEs comfortably host the PCIe transaction layer, MSI/MSI-X interrupt logic, and application payload. 484-FBGA accommodates the high lane count and SerDes reference-clock routing. Cyclone II supports 2.5 GT/s only; Gen2+ requires Cyclone IV GX or newer.
推荐
Embedded Nios II Soft-Processor System
The EP2C35U484I8 commonly hosts Altera's Nios II/f fast soft-core processor for system-control tasks, fitting CPU, on-chip Tightly-Coupled Memory (TCM), peripherals, and custom accelerators within the 33K LE budget. 483,840 embedded RAM bits act as zero-wait-state program/data memory. The 4 PLLs supply independent clocks for the CPU, Ethernet MAC, and UART domains. Industrial temperature enables deployment in harsh-environment controllers.
推荐
Test & Measurement Instrumentation Front-End
The EP2C35U484I8 works as a parallel data acquisition / pattern-generator front-end in benchtop instrumentation: 322 user I/O pins drive LCD displays, push-buttons, and high-speed parallel LVDS/CMOS ADC/DAC pairs, while hardware multipliers accelerate FFT and DSP post-processing. Industrial temperature guarantees stable operation in unheated lab environments. M4K RAM blocks double as trace buffers for logic-analyzer functions in JTAG-driven production ATE.
推荐
推荐产品汇总
工程参考数据： EP2C35U484I8 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | EP2C35U484C8N | EP2C35U484C8 | EP2C35U484C7N | EP2C35U484C7 | EP2C35U484C6N | EP2C35U484C6 |
|---|---|---|---|---|---|---|---|
| Package | 484-FBGA (U484) | 484-FBGA (U484) - same | 484-FBGA (U484) - same | 484-FBGA (U484) - same | 484-FBGA (U484) - same | 484-FBGA (U484) - same | 484-FBGA (U484) - same |
| Brand | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) |
| Logic Elements (LEs) | 33216 | 33216 (identical) | 33216 (identical) | 33216 (identical) | 33216 (identical) | 33216 (identical) | 33216 (identical) |
| Embedded Memory (bits) | 483840 | 483840 (identical) | 483840 (identical) | 483840 (identical) | 483840 (identical) | 483840 (identical) | 483840 (identical) |
| Operating Temperature | -40C to +100C (industrial) | 0C to +85C (commercial) | 0C to +85C (commercial) | 0C to +85C (commercial) | 0C to +85C (commercial) | 0C to +85C (commercial) | 0C to +85C (commercial) |
| Speed Grade | I8 (industrial, slowest industrial) | C8 (commercial, similar to I8) | C8 (commercial, similar to I8) | C7 (commercial, faster than C8 by ~15%) | C7 (commercial, faster than C8 by ~15%) | C6 (commercial, fastest, ~25% faster than C8) | C6 (commercial, fastest, ~25% faster than C8) |
| Lead-Free (N suffix) | No (non-N variant) | Yes (Pb-free / RoHS) | No (non-N) | Yes (Pb-free / RoHS) | No (non-N) | Yes (Pb-free / RoHS) | No (non-N) |
| Embedded 18x18 Multipliers | 35 | 35 (identical) | 35 (identical) | 35 (identical) | 35 (identical) | 35 (identical) | 35 (identical) |
关键差异点
- Industrial -40C to 100C operating range （对比 EP2C35U484C8N)
- Same die, identical LE / RAM / multiplier resources （对比 EP2C35U484C7N)
- Legacy design continuity without PCB respin （对比 Cyclone IV E / Cyclone V families)
设计说明
Route the EP2C35U484I8 on a 4-layer PCB minimum with a dedicated ground plane under the U484 BGA. Provide 4 to 6 decoupling capacitors (100 nF, 10 nF, 4.7 uF) per VCCINT and VCCA pin, placed within 3 mm of the balls. Differential pairs for LVDS / DDR2 must be length-matched to within 150 ps; use series termination on TCLK and DQS lines per the Cyclone II handbook Chapter 8.
Cyclone II core VCCINT runs at 1.2 V while VCCIO supports 1.5 / 1.8 / 2.5 / 3.3 V per bank; use a TPS74401 or equivalent low-dropout regulator with at least 500 mA rating on VCCINT. Enable power-on-reset ordering so VCCINT rises before VCCA, and add a 4.7 kohm pull-up on nCONFIG plus a 10 kohm pull-up on nSTATUS to guarantee clean initialization per Altera's configuration user guide.
Do not exceed the maximum I/O count or mix incompatible voltage standards in one I/O bank - all I/O banks must share a common VREF and VCCIO. When migrating from EP2C35U484I8 to the lead-free C8N / C7N / C6N drop-ins, update your Altera Quartus II project to version 13.0sp1 or earlier, regenerate the bitstream, and re-validate timing closure - faster speed bins may require re-tuning of PLL phase shifts for DDR interfaces.
合规信息
EP2C35U484I8 (non-N suffix) is the original industrial variant; Altera/Intel do not list a clear RoHS compliance statement at the time of verification. The N-suffix commercial variants (C8N, C7N, C6N) are lead-free and RoHS compliant. AEC-Q100 not applicable - this is an FPGA, not a discrete automotive-grade IC. Recommend confirming RoHS with supplier before placing EU-bound orders.
