XC3090L-8PC84C - 320-Cell XC3000 FPGA | AMD Xilinx | 84-PLCC
Référence : XC3090L-8PC84C ✗ Fin de vie| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $42.5 | $42,50 |
| 10 | $36.8 | $368,00 |
| 100 | $31.25 | $3 125,00 |
| 500 | $27.4 | $13 700,00 |
| 1 000 | $24.95 | $24 950,00 |
XC3090L-8PC84C Présentation
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.
Alternatives de remplacement direct pour XC3090L-8PC84C — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec XC3090L-8PC84C (même facteur de forme et même empreinte) — différant par Mounting Type, Package, Family, Process Technology, Speed Grade.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
XC3190A-4PC84C
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
XC3064A-7PC84C
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
XC3042A-7PC84C
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
XC3090L-7PC84C
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
XC3090-100PC84C
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
XC3090L-8PC84C Valeurs maximales et caractéristiques électriques
| 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 |
| Tension d'alimentation | 3.3 V (L variant) |
| Speed Grade | -8 |
| Operating Temperature Grade | Commercial (C) |
| Package Type | 84-pin PLCC (J-lead) |
| Type de montage | Surface Mount / Socket |
| Boundary Scan | JTAG IEEE 1149.1 |
| Configuration Mode | Serial / Parallel / Boundary-Scan |
Configuration des broches de XC3090L-8PC84C
| Broche 1 | I/O — User I/O pin (refer to datasheet for specific bank assignment) |
| Broche 2 | I/O — User I/O pin |
| Broche 3 | I/O — User I/O pin |
| Broche 4 | I/O — User I/O pin |
| Broche 5 | I/O — User I/O pin |
| Broche 6 | I/O — User I/O pin |
| Broche 7 | I/O — User I/O pin |
| Broche 8 | I/O — User I/O pin |
| Broche 9 | I/O — User I/O pin |
| Broche 10 | I/O — User I/O pin |
| Broche 11 | I/O — User I/O pin |
| Broche 12 | GND — Ground |
| Broche 13 | I/O — User I/O pin |
| Broche 14 | I/O — User I/O pin |
| Broche 15 | I/O — User I/O pin |
| Broche 16 | I/O — User I/O pin |
| Broche 17 | I/O — User I/O pin |
| Broche 18 | I/O — User I/O pin |
| Broche 19 | I/O — User I/O pin |
| Broche 20 | I/O — User I/O pin |
| Broche 21 | I/O — User I/O pin |
| Broche 22 | I/O — User I/O pin |
| Broche 23 | M0 — Configuration mode select 0 |
| Broche 24 | M1 — Configuration mode select 1 |
| Broche 25 | M2 — Configuration mode select 2 |
| Broche 26 | VCC — +3.3 V supply (L variant) |
| Broche 27 | I/O — User I/O pin |
| Broche 28 | I/O — User I/O pin |
| Broche 29 | I/O — User I/O pin |
| Broche 30 | I/O — User I/O pin |
| Broche 31 | I/O — User I/O pin |
| Broche 32 | I/O — User I/O pin |
| Broche 33 | I/O — User I/O pin |
| Broche 34 | I/O — User I/O pin |
| Broche 35 | I/O — User I/O pin |
| Broche 36 | I/O — User I/O pin |
| Broche 37 | I/O — User I/O pin |
| Broche 38 | GND — Ground |
| Broche 39 | I/O — User I/O pin |
| Broche 40 | I/O — User I/O pin |
| Broche 41 | I/O — User I/O pin |
| Broche 42 | I/O — User I/O pin |
| Broche 43 | I/O — User I/O pin |
| Broche 44 | I/O — User I/O pin |
| Broche 45 | I/O — User I/O pin |
| Broche 46 | I/O — User I/O pin |
| Broche 47 | I/O — User I/O pin |
| Broche 48 | I/O — User I/O pin |
| Broche 49 | I/O — User I/O pin |
| Broche 50 | VCC — +3.3 V supply |
| Broche 51 | I/O — User I/O pin |
| Broche 52 | I/O — User I/O pin |
| Broche 53 | I/O — User I/O pin |
| Broche 54 | I/O — User I/O pin |
| Broche 55 | I/O — User I/O pin |
| Broche 56 | I/O — User I/O pin |
| Broche 57 | I/O — User I/O pin |
| Broche 58 | I/O — User I/O pin |
| Broche 59 | I/O — User I/O pin |
| Broche 60 | I/O — User I/O pin |
| Broche 61 | I/O — User I/O pin |
| Broche 62 | I/O — User I/O pin |
| Broche 63 | GND — Ground |
| Broche 64 | CCLK — Configuration clock |
| Broche 65 | DONE — Configuration complete indicator |
| Broche 66 | INIT — Configuration initialization |
| Broche 67 | I/O — User I/O pin |
| Broche 68 | I/O — User I/O pin |
| Broche 69 | I/O — User I/O pin |
| Broche 70 | I/O — User I/O pin |
| Broche 71 | I/O — User I/O pin |
| Broche 72 | I/O — User I/O pin |
| Broche 73 | I/O — User I/O pin |
| Broche 74 | I/O — User I/O pin |
| Broche 75 | I/O — User I/O pin |
| Broche 76 | I/O — User I/O pin |
| Broche 77 | I/O — User I/O pin |
| Broche 78 | I/O — User I/O pin |
| Broche 79 | I/O — User I/O pin |
| Broche 80 | VCC — +3.3 V supply |
| Broche 81 | TDI — JTAG Test Data In (IEEE 1149.1) |
| Broche 82 | TMS — JTAG Test Mode Select |
| Broche 83 | TCK — JTAG Test Clock |
| Broche 84 | TDO — JTAG Test Data Out |
Applications typiques
XC3090L-8PC84C convient pour 6 applications: 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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour XC3090L-8PC84C — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | 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 |
Principaux différenciateurs
- Low-voltage 3.3 V supply variant of the XC3090 family (vs XC3090-100PC84C)
- Pin-compatible with the broader XC3000A/L PLCC-84 family (vs XC3190A-4PC84C)
- Established JTAG boundary-scan for production test (vs XC3042A-7PC84C)
Notes de conception
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.
Informations de conformité
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.
