XC3090L-8PC84C - 320-Cell XC3000 FPGA | AMD Xilinx | 84-PLCC
MPN: XC3090L-8PC84C ✗ Akhir HidupXC3090L-8PC84C Ringkasan
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.
Alternatif penggantian untuk XC3090L-8PC84C — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.
Variasi di dalam seri ini
Model-series yang sama yang kompatibel dengan penggantian XC3090L-8PC84C (sama faktor bentuk dan footprint) — berbeda di dalam Mounting Type, Package, Family, Process Technology, Speed Grade.
XC3190A-4PC84C
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
XC3064A-7PC84C
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
XC3042A-7PC84C
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
XC3090L-7PC84C
✅ Drop-In ⚠️ Spesifikasi Tidak Disahkan📋 Alternatif referensi (tidak dalam katalog)
XC3090-100PC84C
✅ Drop-In ⚠️ Spesifikasi Tidak Disahkan📋 Alternatif referensi (tidak dalam katalog)
XC3090L-8PC84C Rating Maksimal & Karakteristik Listrik
| 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 |
| Tegangan Pemuat | 3.3 V (L variant) |
| Speed Grade | -8 |
| Operating Temperature Grade | Commercial (C) |
| Package Type | 84-pin PLCC (J-lead) |
| Tipe Mounting | Surface Mount / Socket |
| Boundary Scan | JTAG IEEE 1149.1 |
| Configuration Mode | Serial / Parallel / Boundary-Scan |
Konfigurasi Pin XC3090L-8PC84C
| Pin produk 1 | I/O — User I/O pin (refer to datasheet for specific bank assignment) |
| Pin produk 2 | I/O — User I/O pin |
| Pin produk 3 | I/O — User I/O pin |
| Pin produk 4 | I/O — User I/O pin |
| Pin produk 5 | I/O — User I/O pin |
| Pin produk 6 | I/O — User I/O pin |
| Pin produk 7 | I/O — User I/O pin |
| Pin produk 8 | I/O — User I/O pin |
| Pin produk 9 | I/O — User I/O pin |
| Pin produk 10 | I/O — User I/O pin |
| Pin produk 11 | I/O — User I/O pin |
| Pin produk 12 | GND — Ground |
| Pin produk 13 | I/O — User I/O pin |
| Pin produk 14 | I/O — User I/O pin |
| Pin produk 15 | I/O — User I/O pin |
| Pin produk 16 | I/O — User I/O pin |
| Pin produk 17 | I/O — User I/O pin |
| Pin produk 18 | I/O — User I/O pin |
| Pin produk 19 | I/O — User I/O pin |
| Pin produk 20 | I/O — User I/O pin |
| Pin produk 21 | I/O — User I/O pin |
| Pin produk 22 | I/O — User I/O pin |
| Pin produk 23 | M0 — Configuration mode select 0 |
| Pin produk 24 | M1 — Configuration mode select 1 |
| Pin produk 25 | M2 — Configuration mode select 2 |
| Pin produk 26 | VCC — +3.3 V supply (L variant) |
| Pin produk 27 | I/O — User I/O pin |
| Pin produk 28 | I/O — User I/O pin |
| Pin produk 29 | I/O — User I/O pin |
| Pin produk 30 | I/O — User I/O pin |
| Pin produk 31 | I/O — User I/O pin |
| Pin produk 32 | I/O — User I/O pin |
| Pin produk 33 | I/O — User I/O pin |
| Pin produk 34 | I/O — User I/O pin |
| Pin produk 35 | I/O — User I/O pin |
| Pin produk 36 | I/O — User I/O pin |
| Pin produk 37 | I/O — User I/O pin |
| Pin produk 38 | GND — Ground |
| Pin produk 39 | I/O — User I/O pin |
| Pin produk 40 | I/O — User I/O pin |
| Pin produk 41 | I/O — User I/O pin |
| Pin produk 42 | I/O — User I/O pin |
| Pin produk 43 | I/O — User I/O pin |
| Pin produk 44 | I/O — User I/O pin |
| Pin produk 45 | I/O — User I/O pin |
| Pin produk 46 | I/O — User I/O pin |
| Pin produk 47 | I/O — User I/O pin |
| Pin produk 48 | I/O — User I/O pin |
| Pin produk 49 | I/O — User I/O pin |
| Pin produk 50 | VCC — +3.3 V supply |
| Pin produk 51 | I/O — User I/O pin |
| Pin produk 52 | I/O — User I/O pin |
| Pin produk 53 | I/O — User I/O pin |
| Pin produk 54 | I/O — User I/O pin |
| Pin produk 55 | I/O — User I/O pin |
| Pin produk 56 | I/O — User I/O pin |
| Pin produk 57 | I/O — User I/O pin |
| Pin produk 58 | I/O — User I/O pin |
| Pin produk 59 | I/O — User I/O pin |
| Pin produk 60 | I/O — User I/O pin |
| Pin produk 61 | I/O — User I/O pin |
| Pin produk 62 | I/O — User I/O pin |
| Pin produk 63 | GND — Ground |
| Pin produk 64 | CCLK — Configuration clock |
| Pin produk 65 | DONE — Configuration complete indicator |
| Pin produk 66 | INIT — Configuration initialization |
| Pin produk 67 | I/O — User I/O pin |
| Pin produk 68 | I/O — User I/O pin |
| Pin produk 69 | I/O — User I/O pin |
| Pin produk 70 | I/O — User I/O pin |
| Pin produk 71 | I/O — User I/O pin |
| Pin produk 72 | I/O — User I/O pin |
| Pin produk 73 | I/O — User I/O pin |
| Pin produk 74 | I/O — User I/O pin |
| Pin produk 75 | I/O — User I/O pin |
| Pin produk 76 | I/O — User I/O pin |
| Pin produk 77 | I/O — User I/O pin |
| Pin produk 78 | I/O — User I/O pin |
| Pin produk 79 | I/O — User I/O pin |
| Pin produk 80 | VCC — +3.3 V supply |
| Pin produk 81 | TDI — JTAG Test Data In (IEEE 1149.1) |
| Pin produk 82 | TMS — JTAG Test Mode Select |
| Pin produk 83 | TCK — JTAG Test Clock |
| Pin produk 84 | TDO — JTAG Test Data Out |
Aplikasi Umum
XC3090L-8PC84C cocok untuk 6 aplikasis: 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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk XC3090L-8PC84C — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | 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 |
Diferensiator Kunci
- 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)
Catatan Desain
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.
Informasi Konformitas
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.
