XC3090L-8TQ176C - 6K-Gate 80MHz CMOS FPGA | Xilinx TQFP-176
料号： XC3090L-8TQ176C ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $28.5 | $28.50 |
| 10 | $25.4 | $254.00 |
| 100 | $21.75 | $2,175.00 |
| 500 | $18.9 | $9,450.00 |
| 1,000 | $16.25 | $16,250.00 |
XC3090L-8TQ176C 概述
A Field Programmable Gate Array (FPGA) is a semiconductor IC whose logic function and interconnects are defined by configuration data loaded into on-chip static memory. FPGAs sit within the broader hierarchy programmable logic device -> programmable logic -> logic IC -> integrated circuit, and historically served as the fastest path to custom digital logic before modern HDL-based ASIC flows became mainstream. The XC3000 family pioneered SRAM-based configuration, allowing infinite reconfiguration and rapid prototyping cycles that defined early-1990s digital design.
Key specifications include 5,000 usable gates (6,000 max), 320 CLBs, 80 MHz maximum toggle frequency, 3.3 V VCC, SRAM-based configuration, JTAG boundary-scan support, and a 0.500 mm pitch TQFP-176 footprint. The device exposes dedicated I/O blocks with programmable pull-ups and output slew-rate control, and it supports multiple configuration modes including master serial, slave serial, and peripheral modes for flexible system boot.
Technically, the XC3090L uses a 5 V-tolerant I/O architecture on a 3.3 V core, with CMOS process geometry typical of mid-1990s Xilinx silicon. Each CLB contains a configurable combinatorial logic section plus two flip-flops, with local interconnect feeding the general-purpose routing matrix. The 80 MHz grade represents worst-case pin-to-pin combinatorial delay across the slowest paths, adequate for glue logic, bus interfacing, and state-machine replacement rather than high-throughput DSP.
Typical applications include legacy glue-logic replacement, bus-bridge adapters (e.g., ISA-to-local-bus converters), industrial controller front-ends, and educational FPGA platforms where the TQFP-176 footprint is already laid out. The XC3090L is widely used as a pin-compatible replacement target for systems designed around the XC3000 family pinout.
When designing, verify that the configuration memory source (EPROM, EEPROM, or microcontroller) matches the selected configuration mode and that the readback/special I/O voltage levels do not exceed the absolute-maximum ratings. Always reference the Xilinx XC3000 family datasheet for full timing parameters.
This page consolidates distributor availability, parametric data, drop-in alternatives, and practical design notes that supplement the original Xilinx XC3090L datasheet.
直接替换替代料： XC3090L-8TQ176C ——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： XC3090L-8TQ176C （相同外形与封装尺寸） ——差异在于 Package, Configuration Memory, Process Technology, Family, Speed Grade.
快速对比工具——选择替代料号进行并排对比：
XC3090L-7TQ176C
✅ 直接替换✓ 有现货
$47.5 / 个
查看数据手册 →XC3090L-6TQ176C
✅ 直接替换✓ 有现货
$9.95 / 个
查看数据手册 →XC3090L-7TQG176C
✅ 直接替换✓ 有现货
$21.2 / 个
查看数据手册 →XC3090L-6TQG176C
✅ 直接替换✓ 有现货
$63 / 个
查看数据手册 →XC3090L-8TQG176C
✅ 直接替换✓ 有现货
$28.75 / 个
查看数据手册 →XC3090L-8TQ176C 最大额定值与电气特性
| Family | XC3000A/L (XC3000 series) |
| Product Type | CMOS Field Programmable Gate Array (FPGA) |
| Usable Gates | 5,000 |
| Maximum Usable Gates | 6,000 |
| Configurable Logic Blocks (CLBs) | 320 |
| Logic Cells | 320 |
| Maximum Internal Frequency | 80 MHz |
| Supply Voltage (VCC) | 3.3 V |
| Process Technology | CMOS (SRAM configuration) |
| Configuration Memory | Internal SRAM, externally loaded |
| 封装 | TQFP-176 (176-terminal PQFP) |
| Package Code | LFQFP / TQFP |
| Terminal Pitch | 0.500 mm |
| Terminal Form | Gull Wing |
| 安装类型 | Surface Mount |
| Operating Temperature Grade | Commercial (C) |
| Speed Grade | 8 (slowest bin) |
| Boundary Scan | JTAG IEEE 1149.1-compatible |
XC3090L-8TQ176C lfqfp / tqfp 引脚配置指南
XC3090L-8TQ176C（lfqfp / tqfp 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： XC3090L-8TQ176C.
请参阅 数据手册 以查看完整引脚配置。
典型应用
XC3090L-8TQ176C 适用于 6 应用s: Legacy Glue Logic Replacement, ISA-to-Local Bus Bridge Adapter, Industrial Controller Front-End, Educational FPGA Trainer Platform, Aerospace Avionics Heritage System, Military Communication Backplane Interface.
Legacy Glue Logic Replacement
The XC3090L-8TQ176C remains a fit for legacy glue-logic replacement in industrial control boards whose original schematics called for an XC3000-series FPGA. Its 320 CLBs and 80 MHz grade-8 timing handle discrete TTL/CMOS replacement tasks such as address decoding, bus arbitration, and state-machine conversion. The TQFP-176 footprint matches the original board layout, eliminating the need for respinning the PCB when repairing obsolete equipment. Designers should validate that existing bitstreams from the XC3090L-8TQ176C source continue to operate at the target clock rate after reflow.
推荐
ISA-to-Local Bus Bridge Adapter
The XC3090L-8TQ176C's 5 V-tolerant I/O and 320-CLB capacity make it well suited to legacy ISA-to-local-bus bridge adapters in industrial PCs and test equipment. Its 3.3 V core reduces power consumption relative to the original 5 V XC3090 while maintaining compatibility with 5 V bus signaling. The 80 MHz grade-8 timing accommodates typical ISA-bus cycle times with margin, and the TQFP-176 package provides sufficient I/O count for both ISA and local-bus signals plus control glue. Configuration via master serial mode is straightforward with a standard XC17S00 PROM.
推荐
Industrial Controller Front-End
The XC3090L-8TQ176C is commonly deployed as the front-end programmable controller in industrial automation modules where its TQFP-176 footprint and XC3000 bitstream compatibility are pre-established on the board. The 5,000-gate capacity handles sensor-multiplexing logic, PWM generation, and protocol translation to CAN or RS-485 backbones. Its commercial operating temperature grade supports factory-floor enclosure environments when paired with adequate thermal management. Replacement parts must preserve the same JTAG and SelectI/O configuration modes to avoid firmware rework.
推荐
Educational FPGA Trainer Platform
The XC3090L-8TQ176C supports educational FPGA training boards where the Xilinx XC3000 toolchain (XACTstep) is used to teach fundamental FPGA design concepts. Its 320-CLB architecture illustrates CLB-based logic implementation without overwhelming beginners, while the TQFP-176 package exposes ample general-purpose I/O for breadboard-style peripheral attachment. Despite its obsolete status, it remains valuable for teaching labs preserving vintage design flows. Modern curricula should pair it with a Spartan-7 migration exercise.
推荐
Aerospace Avionics Heritage System
Long-lifecycle aerospace platforms may still contain XC3090L-8TQ176C parts in heritage avionics subsystems where board redesign is prohibitively expensive. The device's commercial temperature grade is acceptable when mounted in a temperature-controlled avionics bay. Sustaining engineering teams rely on same-family drop-in parts such as the XC3090L-7TQ176C and XC3090L-8TQG176C to manage obsolescence. Configuration bitstreams remain compatible across the speed-grade family, simplifying field replacement.
推荐
Military Communication Backplane Interface
The XC3090L-8TQ176C serves in military communication backplanes where board revisions are frozen and the XC3000 bitstream is already deployed across a fleet. Its 5 V-tolerant I/O interfaces with legacy TTL-level backplane signaling, and the 320-CLB capacity handles protocol-conversion glue logic between proprietary bus standards. The TQFP-176 footprint supports high pin-count signal fan-out without requiring PCB rework. Bitstream compatibility with all XC3090L speed grades enables flexible drop-in field replacement.
推荐
推荐产品汇总
工程参考数据： XC3090L-8TQ176C ——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 | XC3090L-7TQ176C | XC3090L-6TQ176C | XC3090L-7TQG176C | XC3090L-6TQG176C | XC3090L-8TQG176C |
|---|---|---|---|---|---|---|
| Package | TQFP-176 | TQFP-176 - same | TQFP-176 - same | TQFP-176 - same | TQFP-176 - same | TQFP-176 - same |
| Brand | Xilinx | Xilinx | Xilinx | Xilinx | Xilinx | Xilinx |
| Usable Gates | 5,000 | 5,000 | 5,000 | 5,000 | 5,000 | 5,000 |
| CLBs | 320 | 320 | 320 | 320 | 320 | 320 |
| Maximum Frequency | 80 MHz (grade 8) | ~85 MHz (grade 7) | ~100 MHz (grade 6) | ~85 MHz (grade 7) | ~100 MHz (grade 6) | 80 MHz (grade 8) |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Speed Grade | 8 | 7 (faster) | 6 (fastest) | 7 (faster) | 6 (fastest) | 8 (same) |
| Pb-Free Finish | No (standard SnPb) | No (standard SnPb) | No (standard SnPb) | Yes (Pb-free) | Yes (Pb-free) | Yes (Pb-free) |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
| Bitstream Compatible | Yes (XC3000 family) | Yes | Yes | Yes | Yes | Yes |
关键差异点
- Slowest speed grade provides widest timing margin for legacy designs （对比 XC3090L-6TQ176C)
- Original leaded solder finish preserves compatibility with vintage reflow profiles （对比 XC3090L-8TQG176C)
- TQFP-176 commercial temperature grade suits non-extended thermal environments （对比 XC3090L-8TQ176I)
设计说明
The XC3090L-8TQ176C operates from a 3.3 V core supply (VCC) with 5 V-tolerant I/O pins. Decouple VCC with at least one 0.1 uF ceramic capacitor per VCC pin plus a single 10 uF bulk capacitor near the device. Estimated: assuming 320 CLBs fully utilized at 80 MHz, expect ICC core current in the 50-150 mA range per the XC3000 family datasheet; derate at higher junction temperatures. I/O supply (VCCIO) may be tied to 3.3 V or 5 V depending on the bus interface standard; verify against absolute-maximum ratings in the datasheet before applying.
The TQFP-176 package has a 0.500 mm pitch that requires precise PCB layout. Route signals on inner layers to escape the dense perimeter pin field, and use via-in-pad or microvia technology on inner escape traces. Maintain a continuous ground plane beneath the device to provide reference for I/O signals and to dissipate thermal load. Estimated: thermal resistance theta_JA for TQFP-176 on a 4-layer PCB with ground plane is approximately 35-45 C/W; full-power operation may require thermal vias to an internal copper pour.
Configuration mode selection must be hard-wired correctly via the M0, M1, and M2 mode pins on the XC3090L-8TQ176C. Connecting these pins to the wrong logic level will prevent the device from entering the desired configuration mode (master serial, slave serial, peripheral, or express). Additionally, ensure that the DONE pin pull-up is present and that the configuration clock (CCLK) driver matches the selected mode's timing requirements. Readback is not supported on all XC3000A/L variants; verify in the datasheet before relying on readback for in-system verification.
合规信息
XC3090L-8TQ176C is an obsolete legacy FPGA supplied in standard SnPb finish (lead-free=false). RoHS, REACH, halogen-free, and conflict-minerals compliance not verified from the provided distributor data; consult the manufacturer or the XAIPART procurement team for confirmation. Pb-free TQG variants (XC3090L-8TQG176C) are likely RoHS-compliant but require verification.
