XC3090L-8PC84C - 320-Cell XC3000 FPGA | AMD Xilinx | 84-PLCC
MPN: XC3090L-8PC84C ✗ Cuối đờiXC3090L-8PC84C Tóm tắt
A Field Programmable Gate Array (FPGA) is a semiconductor integrated circuit built from a matrix of configurable logic blocks (CLBs) interconnected by programmable routing, surrounded by user-controllable I/O cells. FPGAs belong to the programmable logic hierarchy: programmable logic -> FPGA -> SRAM-based FPGA -> SRAM-LUT FPGA -> ASIC prototyping platform. Unlike microcontrollers, FPGAs implement hardware-level parallelism, executing logic in dedicated silicon gates rather than sequential firmware instructions.
Key features of the XC3090L-8PC84C include 70 user I/O pins with TTL-compatible drivers, an on-chip oscillator for self-clocking configuration modes, JTAG-compliant boundary-scan testing support per IEEE 1149.1, and readback capability for in-system verification. The "L" suffix denotes the 3.3 V low-power variant, which reduces quiescent current versus the original 5 V XC3090 and simplifies migration to 3.3 V system rails.
Architecturally, the XC3090L uses a five-input look-up table (LUT) per CLB with a distributed SRAM configuration store. Designs are captured as schematic netlists or VHDL/Verilog and compiled with the legacy XACTstep M1 toolchain, then programmed via the Xilinx HW-130 programmer or compatible JTAG loaders. The 84-PLCC footprint supports hand-soldering and socketed prototyping on through-hole boards.
Typical applications include legacy industrial control interfaces, telecom line-card glue logic, ASIC prototyping for low-density glue functions, and educational FPGA laboratory platforms where students learn Verilog/VHDL design on classic SRAM-LUT silicon. The XC3090L is also used as a drop-in form factor for retrocomputing and test equipment maintenance.
When designing with the XC3090L-8PC84C, designers must source the original XACTstep M1 development software, a parallel-port programmer, and acknowledge that the device is no longer in active production; lifecycle status should be confirmed before any new design commitment, and a long-term obsolescence mitigation plan is recommended.
This page synthesizes distributor pricing, drop-in equivalent options, and practical design notes - engineering context that complements the legacy Xilinx datasheet but does not replace it.
Bộ thay thế dễ dàng lắp đặt cho XC3090L-8PC84C — 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 XC3090L-8PC84C (cùng hình factor và footprint) — khác nhau ở Mounting Type, Package, Family, Process Technology, Speed Grade.
XC3190A-4PC84C
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
XC3064A-7PC84C
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
XC3042A-7PC84C
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
XC3090L-7PC84C
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
XC3090-100PC84C
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
XC3090L-8PC84C Tỷ lệ tối đa & tính chất điện
| Product Type | Field Programmable Gate Array (FPGA) |
| Series | XC3000A/L |
| Gates (Usable) | 6,000 |
| Logic Cells (CLBs) | 320 |
| Configuration Memory | 64,160 bits |
| User I/O Pins | 70 |
| Maximum Toggle Frequency | 80 MHz |
| Điện áp cung cấp | 3.3 V (L variant) |
| Speed Grade | -8 |
| Operating Temperature Grade | Commercial (C) |
| Package Type | 84-pin PLCC (J-lead) |
| Kiểu lắp đặt | Surface Mount / Socket |
| Boundary Scan | JTAG IEEE 1149.1 |
| Configuration Mode | Serial / Parallel / Boundary-Scan |
Cấu hình chân XC3090L-8PC84C
| Chân 1 | I/O — User I/O pin (refer to datasheet for specific bank assignment) |
| Chân 2 | I/O — User I/O pin |
| Chân 3 | I/O — User I/O pin |
| Chân 4 | I/O — User I/O pin |
| Chân 5 | I/O — User I/O pin |
| Chân 6 | I/O — User I/O pin |
| Chân 7 | I/O — User I/O pin |
| Chân 8 | I/O — User I/O pin |
| Chân 9 | I/O — User I/O pin |
| Chân 10 | I/O — User I/O pin |
| Chân 11 | I/O — User I/O pin |
| Chân 12 | GND — Ground |
| Chân 13 | I/O — User I/O pin |
| Chân 14 | I/O — User I/O pin |
| Chân 15 | I/O — User I/O pin |
| Chân 16 | I/O — User I/O pin |
| Chân 17 | I/O — User I/O pin |
| Chân 18 | I/O — User I/O pin |
| Chân 19 | I/O — User I/O pin |
| Chân 20 | I/O — User I/O pin |
| Chân 21 | I/O — User I/O pin |
| Chân 22 | I/O — User I/O pin |
| Chân 23 | M0 — Configuration mode select 0 |
| Chân 24 | M1 — Configuration mode select 1 |
| Chân 25 | M2 — Configuration mode select 2 |
| Chân 26 | VCC — +3.3 V supply (L variant) |
| Chân 27 | I/O — User I/O pin |
| Chân 28 | I/O — User I/O pin |
| Chân 29 | I/O — User I/O pin |
| Chân 30 | I/O — User I/O pin |
| Chân 31 | I/O — User I/O pin |
| Chân 32 | I/O — User I/O pin |
| Chân 33 | I/O — User I/O pin |
| Chân 34 | I/O — User I/O pin |
| Chân 35 | I/O — User I/O pin |
| Chân 36 | I/O — User I/O pin |
| Chân 37 | I/O — User I/O pin |
| Chân 38 | GND — Ground |
| Chân 39 | I/O — User I/O pin |
| Chân 40 | I/O — User I/O pin |
| Chân 41 | I/O — User I/O pin |
| Chân 42 | I/O — User I/O pin |
| Chân 43 | I/O — User I/O pin |
| Chân 44 | I/O — User I/O pin |
| Chân 45 | I/O — User I/O pin |
| Chân 46 | I/O — User I/O pin |
| Chân 47 | I/O — User I/O pin |
| Chân 48 | I/O — User I/O pin |
| Chân 49 | I/O — User I/O pin |
| Chân 50 | VCC — +3.3 V supply |
| Chân 51 | I/O — User I/O pin |
| Chân 52 | I/O — User I/O pin |
| Chân 53 | I/O — User I/O pin |
| Chân 54 | I/O — User I/O pin |
| Chân 55 | I/O — User I/O pin |
| Chân 56 | I/O — User I/O pin |
| Chân 57 | I/O — User I/O pin |
| Chân 58 | I/O — User I/O pin |
| Chân 59 | I/O — User I/O pin |
| Chân 60 | I/O — User I/O pin |
| Chân 61 | I/O — User I/O pin |
| Chân 62 | I/O — User I/O pin |
| Chân 63 | GND — Ground |
| Chân 64 | CCLK — Configuration clock |
| Chân 65 | DONE — Configuration complete indicator |
| Chân 66 | INIT — Configuration initialization |
| Chân 67 | I/O — User I/O pin |
| Chân 68 | I/O — User I/O pin |
| Chân 69 | I/O — User I/O pin |
| Chân 70 | I/O — User I/O pin |
| Chân 71 | I/O — User I/O pin |
| Chân 72 | I/O — User I/O pin |
| Chân 73 | I/O — User I/O pin |
| Chân 74 | I/O — User I/O pin |
| Chân 75 | I/O — User I/O pin |
| Chân 76 | I/O — User I/O pin |
| Chân 77 | I/O — User I/O pin |
| Chân 78 | I/O — User I/O pin |
| Chân 79 | I/O — User I/O pin |
| Chân 80 | VCC — +3.3 V supply |
| Chân 81 | TDI — JTAG Test Data In (IEEE 1149.1) |
| Chân 82 | TMS — JTAG Test Mode Select |
| Chân 83 | TCK — JTAG Test Clock |
| Chân 84 | TDO — JTAG Test Data Out |
Ứng dụng tiêu biểu
XC3090L-8PC84C phù hợp cho 6 Áp dụngs: Legacy Industrial Control Systems, Telecom Line-Card Glue Logic, ASIC Prototyping and Emulation, Educational FPGA Laboratory Platforms, Retrocomputing and Test Equipment Repair, Aerospace and Defense Obsolescence Management.
Legacy Industrial Control Systems
The XC3090L-8PC84C was widely deployed in 1990s-era industrial control and SCADA interface boards where its 320 CLBs and 70 user I/O provided enough logic density for glue functions, motor control sequencers, and parallel I/O expansion. The 84-pin PLCC package allowed socketed field replacement, an important feature for downtime-critical factory lines. Modern retrofits should match the original pinout, retain the JTAG boundary-scan for production test access, and validate that 3.3 V supply rails remain within the L-variant spec.
Được đề xuất
Telecom Line-Card Glue Logic
In legacy T1/E1 line cards and DSLAM backplanes, the XC3090L-8PC84C served as a flexible glue-logic device bridging framers, LIUs, and network processors. Its 80 MHz toggle rate comfortably handled DS1/E1 bit timing, while the 70 user I/O supported multiple parallel control buses. The 3.3 V L variant simplified power tree design in mixed 3.3 V/5 V systems. Service technicians maintaining these cards today can use modern JTAG programmers to verify configuration without removing the chip from the socket.
Được đề xuất
ASIC Prototyping and Emulation
Before the era of multi-million-gate FPGAs, the XC3090L-8PC84C was used to prototype ASICs in the 5,000-8,000 gate range, particularly in industrial, automotive, and consumer silicon designs. Engineers mapped RTL to the XC3000 LUT structure and validated timing using the XACTstep M1 timing analyzer. The PLCC package enabled rapid board spins during design iterations. While modern ASIC prototyping uses large FPGAs, the XC3090L remains valuable for emulating and validating legacy ASICs in long-life aerospace and defense systems.
Được đề xuất
Educational FPGA Laboratory Platforms
Universities adopted the XC3090L-8PC84C in undergraduate and graduate digital-design labs because its 320 CLBs and PLCC socket were ideal for teaching Verilog/VHDL synthesis, place-and-route fundamentals, and JTAG configuration flow. The 84-pin PLCC accepts zero-insertion-force sockets, allowing students to swap parts during lab sessions without soldering. The XC3000 architecture remains pedagogically valuable for understanding five-input LUTs and distributed configuration memory before transitioning to modern FPGA curricula.
Được đề xuất
Retrocomputing and Test Equipment Repair
The XC3090L-8PC84C powers vintage test instruments, data acquisition boards, and retrocomputing peripherals originally sold in the late 1990s. Restorers of gear like logic analyzers, custom GPIB interfaces, and early video processing boards rely on the XC3090L for socketed replacement. Sourcing authentic parts requires contacting authorized surplus distributors such as Lisleapex or Xecor; no modern Xilinx FPGA replicates the exact 84-pin PLCC footprint, so the original part remains essential for faithful restoration.
Được đề xuất
Aerospace and Defense Obsolescence Management
Aerospace and defense programs with 20-30 year field-life requirements must manage the XC3090L-8PC84C through its obsolete lifecycle. Programs stock lifetime-buy quantities, qualify trusted third-party distributors, and design adapter boards that allow modern replacements such as the XC3190A-4PC84C or XC2S50 to be tested in place. The JTAG boundary-scan per IEEE 1149.1 remains essential for in-system verification during the part's long service life.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho XC3090L-8PC84C — 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 | XC3190A-4PC84C | XC3064A-7PC84C | XC3042A-7PC84C | XC3090L-7PC84C | XC3090-100PC84C |
|---|---|---|---|---|---|---|
| Package | 84-pin PLCC (J-lead) | 84-pin PLCC (J-lead) - same | 84-pin PLCC (J-lead) - same | 84-pin PLCC (J-lead) - same | 84-pin PLCC (J-lead) - same | 84-pin PLCC (J-lead) - same |
| Brand | Xilinx (AMD) | Xilinx (AMD) | Xilinx (AMD) | Xilinx (AMD) | Xilinx (AMD) | Xilinx (AMD) |
| Logic Cells (CLBs) | 320 | Higher density (XC3100A family) | 224 (-30%) | 144 (-55%) | 320 (same) | 320 (same) |
| Supply Voltage | 3.3 V (L variant) | 5 V | 5 V or 3.3 V variant | 5 V or 3.3 V variant | 3.3 V | 5 V |
| User I/O | 70 | 70 | 70 | 70 | 70 | 70 |
| Speed Grade | -8 (slowest) | -4 | -7 | -7 | -7 (faster) | -100 |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
| JTAG Boundary Scan | Yes (IEEE 1149.1) | Yes | Yes | Yes | Yes | Yes |
Bảo phân biệt quan trọng
- Low-voltage 3.3 V supply variant of the XC3090 family (vsXC3090-100PC84C)
- Pin-compatible with the broader XC3000A/L PLCC-84 family (vsXC3190A-4PC84C)
- Established JTAG boundary-scan for production test (vsXC3042A-7PC84C)
Ghi chú thiết kế
Place 0.1 uF decoupling capacitors as close as possible to every VCC pin (pins 26, 50, 80) and the GND pins (12, 38, 63). For an 84-pin PLCC with three VCC and three GND pins, use six 0.1 uF ceramics distributed around the package perimeter. Add a single 10 uF tantalum or ceramic bulk capacitor near the FPGA's VCC entry point. The XC3000 family is sensitive to power-supply noise during configuration; insufficient decoupling causes CRC errors and configuration failure.
Configuration mode pins M0, M1, M2 (pins 23, 24, 25) must be held stable throughout the configuration process. Floating mode pins cause the FPGA to enter an undefined state. Tie them to defined logic levels via 4.7 kohm resistors to VCC or GND. The DONE pin (65) is open-drain and requires a 4.7 kohm pull-up to VCC; omitting this pull-up prevents the downstream system from recognizing successful configuration completion.
Estimated: At 80 MHz toggle rates, the XC3090L-8PC84C generates edge rates near 1-2 ns. Trace lengths on CCLK (pin 64) and global clock nets should be kept under 50 mm with series damping of 33 ohm near the driver. Use a ground reference plane under all clock and high-speed I/O traces to control impedance near 50 ohm. For multi-card systems, add 22 ohm series resistors at clock driver outputs to dampen reflections.
Thông tin tuân thủ
RoHS status for the legacy XC3090L-8PC84C PLCC package is not documented in the retrieved 2026-09-13 data; this part predates the RoHS transition and may require exemption analysis for new designs. AEC-Q100 is not applicable for FPGAs of this vintage.
