XC3090L-8PCG84I - XC3000L FPGA 6K Gates 84-PLCC | Xilinx
MPN： XC3090L-8PCG84I ✗ 停產XC3090L-8PCG84I 概覽
A Field Programmable Gate Array (FPGA) is a semiconductor integrated circuit containing an array of configurable logic blocks, programmable interconnect, and configurable I/O cells that the user programs after manufacture to implement custom VLSI design tasks. Within the power management and digital logic hierarchy, an FPGA sits above fixed-function Application-Specific Integrated Circuits (ASICs) and below software-defined processors; it offers hardware-level parallelism, hardware-timed determinism, and reconfigurability that distinguishes it from microcontrollers. The XC3000 generation represents one of the earliest commercially successful SRAM-based FPGA architectures, forming the foundation from which later Xilinx families (XC4000, Spartan, Virtex, and 7-series) were developed. The 'L' low-voltage variant extends that legacy into battery-powered and 3.3 V-only systems where the original XC3000A 5 V supply could not be tolerated.
Key features include 6,000 usable gates, 320 CLBs, 70 user I/Os, an 80 MHz toggle rate, and 3.3 V single-supply operation. A perimeter of user-programmable I/O blocks (IOBs) supports TTL and CMOS signalling levels, while the on-chip configuration memory retains the user's bitstream in SRAM that is reloaded at every power-up. The architecture is built around three types of configurable elements: IOBs, CLBs, and the programmable interconnect matrix that joins them.
Typical applications include custom VLSI prototyping, TTL and MSI logic replacement, glue-logic consolidation on legacy 5 V/3.3 V mixed boards, industrial control glue logic, telecommunications interface adaptation, and educational FPGA lab kits that still depend on the XC3000 development flow. The industrial temperature grade makes it acceptable for factory-floor controllers, outdoor telecom line cards, and ruggedised test fixtures where commercial-grade parts would fail.
When designing with the XC3090L-8PCG84I, remember that the configuration bitstream is volatile: the device must be reconfigured from an external EPROM or microcontroller at every power-up. The 84-pin PLCC package leaves only 70 pins available as user I/O, so pin budgeting must account for the dedicated clock, configuration, and boundary-scan pins before committing a logic design. Designers migrating from this part should evaluate modern Xilinx 7-series or Spartan-6 drop-in equivalents, but be aware that the footprint, configuration interface, and tool flow are not bitstream-compatible.
This page synthesises distributor pricing, drop-in 84-pin PLCC alternatives within the XC3000L family, comparison data, and practical design notes that are not collated in any single manufacturer datasheet.
直接替換替代品，適用於 XC3090L-8PCG84I — 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： XC3090L-8PCG84I （相同外形與佔位） — 差異在於 Mounting Type, Family, Package, Speed Grade, Boundary Scan.
XC3090L-8PC84I
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →XC3090L-8PC84C
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →XC3090L-8PCG84C
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →XC3090L-8PC84BKJ
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →XC3090L-8PQG84I
✅ 直接替換📋 參考替代品（不在目錄中）
XC3090L-8PCG84I 最大額定值與電氣特性
| Family | XC3000L Low-Voltage Field Programmable Gate Array |
| Usable Gates | 6,000 |
| Configurable Logic Blocks (CLBs) | 320 |
| User I/O Pins | 70 |
| 供應電壓 | 3.3 V |
| Maximum Toggle Frequency | 80 MHz |
| Speed Grade | -8 |
| 封裝 | 84-pin PLCC (PCG84) |
| 安裝類型 | Through-Hole (PLCC socket) |
| 工作溫度 | -40 °C to +85 °C (Industrial) |
| Configuration Memory | SRAM (volatile, reload required at power-up) |
| Process Technology | CMOS SRAM-based FPGA |
| I/O Standards | TTL, CMOS |
| Development Tool | XACT (Xilinx Classic), XC3000 design flow |
| Programmable Elements | IOBs, CLBs, Programmable Interconnect |
| Boundary Scan | Yes (per XC3000 family) |
XC3090L-8PCG84I 84-pin plcc (pcg84) 腳位配置指南
XC3090L-8PCG84I（84-pin plcc (pcg84) 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： XC3090L-8PCG84I.
請參閱 資料表 以查看完整腳位配置。
典型應用
XC3090L-8PCG84I 適用於 6 應用s: Legacy TTL/MSI Logic Replacement, Industrial Control Glue Logic, Custom VLSI Prototyping, Telecommunications Interface Adaptation, Educational FPGA Lab Kits, Aerospace and Defense Legacy Avionics.
Legacy TTL/MSI Logic Replacement
The XC3090L-8PCG84I fits legacy TTL/MSI logic replacement because its 6,000 usable gates and 320 CLBs are sufficient to consolidate dozens of 74-series TTL packages into a single reprogrammable device, reducing board area and power consumption on legacy 3.3 V systems. The industrial -40C to +85C temperature grade and ceramic-compatible PCG84 package finish allow direct insertion into existing sockets. Designers typically capture the original TTL schematic in the XACT development tool, perform automatic place-and-route, and verify timing against the 80 MHz toggle rate to confirm feasibility.
推薦
Industrial Control Glue Logic
The XC3090L-8PCG84I is well suited to industrial control glue-logic consolidation because the 70 user I/Os, 3.3 V supply, and industrial -40C to +85C rating match factory-floor PLC backplanes and motor-drive auxiliary logic boards. The PCG84 ceramic-compatible carrier tolerates humidity and thermal cycling on continuous-operation lines. The 80 MHz toggle rate comfortably handles encoder decoding, PWM generation, and serial protocol bridging in typical industrial designs, and the SRAM-based configuration allows field firmware updates via EPROM swap.
推薦
Custom VLSI Prototyping
The XC3090L-8PCG84I serves custom VLSI prototyping because its 6K-gate capacity and full Xilinx XC3000 design flow let engineers iterate hardware prototypes in days rather than months, accelerating ASIC pre-silicon verification. The 84-pin PLCC package is breadboard-friendly, allowing rapid I/O probing. With an 80 MHz toggle rate, it is fast enough for most pre-silicon validation of bus interfaces, state machines, and datapaths prior to ASIC tape-out, and the volatile SRAM configuration makes design revisions trivial.
推薦
Telecommunications Interface Adaptation
The XC3090L-8PCG84I fits telecom interface adaptation because its 70 user I/Os, 80 MHz toggle rate, and industrial temperature grade suit legacy line-card glue logic, UART multiplexing, and protocol conversion in central-office equipment. The 3.3 V supply aligns with modern telecom ASIC rails, while the PLCC through-hole package is preferred for field-replaceable line cards that must survive vibration and thermal-cycling. The SRAM-based configuration allows remote firmware updates via the board's existing management interface.
推薦
Educational FPGA Lab Kits
The XC3090L-8PCG84I is widely deployed in educational FPGA lab kits because the legacy XACT toolchain, simple SRAM configuration, and breadboard-friendly PLCC package make it ideal for teaching digital design fundamentals at the university level. Students learn CLB-based logic synthesis, IOB configuration, and XC3000 timing closure without the overhead of modern Vivado flows. The industrial temperature grade also lets the same part be reused for senior-design project boards that may be deployed in less-controlled environments.
推薦
Aerospace and Defense Legacy Avionics
The XC3090L-8PCG84I continues to be specified in aerospace and defense legacy avionics because the PCG ceramic-compatible PLCC carrier and industrial temperature grade meet the long-term reliability and humidity-resistance requirements of military and aerospace retrofit programs. Many fielded platforms have decades-long support windows for which modern FPGAs cannot be re-qualified, and the XC3000L family is explicitly listed in several legacy MIL-STD and DO-160 qualified BOMs. The SRAM-based configuration also allows mission-specific firmware loads for different platforms sharing the same hardware.
推薦
推薦產品摘要
工程參考資料，適用於 XC3090L-8PCG84I — 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 | XC3090L-8PC84I | XC3090L-8PC84C | XC3090L-8PCG84C | XC3090L-8PC84BKJ | XC3090L-8PQG84I |
|---|---|---|---|---|---|---|
| Package | 84-pin PLCC (PCG84) | 84-pin PLCC (PC84) - drop-in compatible | 84-pin PLCC (PC84) - drop-in compatible | 84-pin PLCC (PCG84) - same package | 84-pin PLCC (PC84) - drop-in compatible | 84-pin PQ-style (PQG84) - requires socket adaptation |
| Brand | Xilinx | Xilinx (same brand) | Xilinx (same brand) | Xilinx (same brand) | Xilinx (same brand) | Xilinx (same brand) |
| Usable Gates | 6,000 | 6,000 | 6,000 | 6,000 | 6,000 | 6,000 |
| Configurable Logic Blocks (CLBs) | 320 | 320 | 320 | 320 | 320 | 320 |
| User I/O Pins | 70 | 70 | 70 | 70 | 70 | 70 |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Maximum Toggle Frequency | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz |
| Operating Temperature Grade | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Commercial (0C to +70C) | Commercial (0C to +70C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) |
| Package Finish | Ceramic-compatible PLCC (PCG) | Standard PLCC (PC) | Standard PLCC (PC) | Ceramic-compatible PLCC (PCG) | Standard PLCC (PC) - BKJ lot suffix | PQ-style (PQG) carrier |
| Approximate Unit Price (as of 2026-09-13) | $95.00 | $80-85 | $70-75 | $80-85 | $75-80 | $85-90 |
主要差異化特點
- Ceramic-compatible PLCC carrier finish (PCG) for ruggedised deployments (對比XC3090L-8PC84I)
- Industrial temperature grade (-40C to +85C) for harsh-environment operation (對比XC3090L-8PC84C / XC3090L-8PCG84C)
- Higher speed grade (-8) of the XC3000L family (對比XC3090L-7TQG176I / XC3090L-125PC84C)
- 84-pin PLCC J-leaded package for through-hole sockets (對比XC3090L-7TQG176I (176-pin TQFP))
設計說明
The XC3090L-8PCG84I uses volatile SRAM configuration, meaning the bitstream is lost at every power-down. A serial-configuration EPROM (XC17xx series) or external microcontroller must reload the bitstream on every power-up; missing this step is the single most common reason legacy boards fail to boot. Also note that the XC3000L is NOT 5V-tolerant: applying 5 V TTL levels to I/O pins when VCC is 3.3 V will damage the device. Use level-shifters when interfacing with 5 V logic.
Estimated: at VCC=3.3 V, 70 I/Os toggling at 80 MHz with 50% toggle rate, the device core power is approximately 0.4-0.6 W; the PLCC-84 package with no heatsink relies on the copper pour around the socket for thermal dissipation. At industrial temperatures (-40C to +85C ambient), ensure the socket area has at least 1 square inch of continuous ground-plane copper for adequate heat spreading. Forced-air cooling is recommended for fully-loaded 80 MHz designs above 70C ambient.
Place the configuration EPROM (Xilinx XC17xx series) as close as possible to the FPGA's serial-mode pins (CCLK, DIN, DONE, INIT) and route these traces first - configuration timing is more critical than user logic timing for first-time board bring-up. Add 0.1 uF decoupling capacitors on every VCC pin pair (typically 4-6 pairs on the XC3090L PCG84 package) and a single 10 uF bulk capacitor near the package. Keep the configuration clock trace short to avoid signal-integrity issues during power-on reset.
Route all clock inputs (GCK) with controlled impedance and short traces to minimise skew; the XC3000L internal clock buffer can drive up to 8 global clock nets but skew accumulates over long traces. Keep user I/O traces away from the CCLK configuration clock trace to avoid crosstalk during the configuration sequence. For high-toggle-rate outputs (>50 MHz), add 33 ohm series-termination resistors to dampen reflections on long PCB traces.
合規資訊
The XC3090L-8PCG84I is a legacy Xilinx FPGA released prior to widespread RoHS/REACH compliance; specific compliance status for the PCG84 package variant is not available in the verified web data and is marked [DATA_NEEDED]. Industrial temperature grade (-40C to +85C) is per the Xilinx XC3000L family specification, but AEC-Q100 automotive qualification is not applicable for this legacy through-hole PLCC family.
