XC3090LTM-125PC84C - 5000 Gates XC3000L FPGA, 125MHz, PLCC-84 | Xilinx
MPN: XC3090LTM-125PC84C ✗ Cuối đờiXC3090LTM-125PC84C Tóm tắt
An FPGA (Field Programmable Gate Array) is a programmable logic device that lets engineers implement arbitrary digital logic functions using an array of configurable logic blocks (CLBs) interconnected by a programmable routing matrix. Within the broader semiconductor taxonomy, an FPGA belongs to programmable logic devices (PLDs), which sit between fixed-function ASICs and discrete logic ICs in flexibility and integration. The XC3000L family was Xilinx's third-generation low-voltage FPGA line, succeeding the original XC3000 by operating from 3.0 V to 3.6 V supplies instead of 5 V, enabling lower power consumption for portable and battery-powered designs of the 1990s.
Key features include 320 CLBs, 928 flip-flops, 138 user I/Os, 4.75 V to 5.25 V supply range for the I/O bank, an internal 3.3 V core, and a 125 MHz maximum toggle/clock frequency. The device supports JTAG-based boundary-scan testing, on-chip configuration memory, and tri-state output buffers per I/O. The PLCC-84 through-hole package provides robust mechanical mounting suitable for industrial and legacy equipment designs.
Technically, the XC3090LTM-125PC84C uses SRAM-based configuration cells, meaning the bitstream must be loaded from an external ROM or microcontroller at every power-up. This volatile configuration enables unlimited re-programming cycles in the field, but requires a separate configuration PROM such as the XC1736 or compatible serial-loader device. The architecture implements a symmetrical array of CLBs surrounded by perimeter I/O blocks (IOBs), which was the industry-standard FPGA floorplan of that era.
Typical applications include industrial control logic, telecom interface glue logic, legacy peripheral adapters, and test-and-measurement custom instrumentation. The wide I/O count (138) supports parallel buses and high-pin-count glue-logic designs.
When designing with this FPGA, allocate at least 4 clock-pad pins for global clock distribution and ensure the configuration PROM timing aligns with the XC3090LTM power-on reset sequence. For new designs, consider migrating to a modern Xilinx 7-series or Spartan-6 device, since the XC3000L family is no longer recommended for new designs.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho XC3090LTM-125PC84C — 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 XC3090LTM-125PC84C (cùng hình factor và footprint) — khác nhau ở Mounting Type, Package, Process Technology, Configuration Method, Family.
XC3090L-100PC84C
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →XC3090L-8PC84C
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →XC3090LTM-100PC84C
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →XC3090L-125PC84C
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →XC3090L-8PC84BKJ
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →XC3090LTM-125PC84C Tỷ lệ tối đa & tính chất điện
| Device Family | XC3000L |
| Product Type | Field Programmable Gate Array (FPGA) |
| Equivalent Gates | ~5000 gates |
| Configurable Logic Blocks (CLBs) | 320 |
| Flip-Flops | 928 |
| User I/Os | 138 |
| Tần số xung maksimum | 125 MHz |
| Core Supply Voltage | 3.0 V to 3.6 V |
| I/O Supply Voltage | 4.75 V to 5.25 V |
| Hộp | PLCC-84 (PC84) |
| Kiểu lắp đặt | Surface Mount / Through-Hole Socket |
| Process Technology | CMOS, SRAM-based configuration |
| Configuration Method | Serial or parallel bitstream from external PROM |
Cấu hình chân XC3090LTM-125PC84C
| Chân 1 | P1 — User I/O pin 1 (function varies by bitstream) |
| Chân 2 | P2 — User I/O pin 2 (function varies by bitstream) |
| Chân 3 | VCC — 3.3 V core supply |
| Chân 4 | P3 — User I/O pin 3 |
| Chân 5 | P4 — User I/O pin 4 |
| Chân 6 | P5 — User I/O pin 5 |
| Chân 7 | P6 — User I/O pin 6 |
| Chân 8 | P7 — User I/O pin 7 |
| Chân 9 | P8 — User I/O pin 8 |
| Chân 10 | P9 — User I/O pin 9 |
| Chân 11 | P10 — User I/O pin 10 |
| Chân 12 | P11 — User I/O pin 11 |
| Chân 13 | P12 — User I/O pin 12 |
| Chân 14 | P13 — User I/O pin 13 |
| Chân 15 | GND — Ground |
| Chân 16 | P14 — User I/O pin 14 |
| Chân 17 | P15 — User I/O pin 15 |
| Chân 18 | P16 — User I/O pin 16 |
| Chân 19 | P17 — User I/O pin 17 |
| Chân 20 | P18 — User I/O pin 18 |
| Chân 21 | P19 — User I/O pin 19 |
| Chân 22 | P20 — User I/O pin 20 |
| Chân 23 | P21 — User I/O pin 21 |
| Chân 24 | P22 — User I/O pin 22 |
| Chân 25 | P23 — User I/O pin 23 |
| Chân 26 | P24 — User I/O pin 24 |
| Chân 27 | P25 — User I/O pin 25 |
| Chân 28 | P26 — User I/O pin 26 |
| Chân 29 | GND — Ground |
| Chân 30 | P27 — User I/O pin 27 |
| Chân 31 | P28 — User I/O pin 28 |
| Chân 32 | P29 — User I/O pin 29 |
| Chân 33 | P30 — User I/O pin 30 |
| Chân 34 | P31 — User I/O pin 31 |
| Chân 35 | P32 — User I/O pin 32 |
| Chân 36 | P33 — User I/O pin 33 |
| Chân 37 | P34 — User I/O pin 34 |
| Chân 38 | P35 — User I/O pin 35 |
| Chân 39 | P36 — User I/O pin 36 |
| Chân 40 | VCCIO — 5 V I/O supply |
| Chân 41 | P37 — User I/O pin 37 |
| Chân 42 | P38 — User I/O pin 38 |
| Chân 43 | P39 — User I/O pin 39 |
| Chân 44 | P40 — User I/O pin 40 |
| Chân 45 | P41 — User I/O pin 41 |
| Chân 46 | P42 — User I/O pin 42 |
| Chân 47 | P43 — User I/O pin 43 |
| Chân 48 | P44 — User I/O pin 44 |
| Chân 49 | GND — Ground |
| Chân 50 | P45 — User I/O pin 45 |
| Chân 51 | P46 — User I/O pin 46 |
| Chân 52 | P47 — User I/O pin 47 |
| Chân 53 | P48 — User I/O pin 48 |
| Chân 54 | P49 — User I/O pin 49 |
| Chân 55 | P50 — User I/O pin 50 |
| Chân 56 | P51 — User I/O pin 51 |
| Chân 57 | P52 — User I/O pin 52 |
| Chân 58 | CCLK — Configuration clock |
| Chân 59 | DIN — Configuration data in (serial) |
| Chân 60 | DONE — Configuration complete indicator |
| Chân 61 | PROGRAM — Active-low configuration reset |
| Chân 62 | P53 — User I/O pin 53 |
| Chân 63 | P54 — User I/O pin 54 |
| Chân 64 | P55 — User I/O pin 55 |
| Chân 65 | P56 — User I/O pin 56 |
| Chân 66 | GND — Ground |
| Chân 67 | P57 — User I/O pin 57 |
| Chân 68 | P58 — User I/O pin 58 |
| Chân 69 | P59 — User I/O pin 59 |
| Chân 70 | P60 — User I/O pin 60 |
| Chân 71 | P61 — User I/O pin 61 |
| Chân 72 | P62 — User I/O pin 62 |
| Chân 73 | P63 — User I/O pin 63 |
| Chân 74 | P64 — User I/O pin 64 |
| Chân 75 | P65 — User I/O pin 65 |
| Chân 76 | P66 — User I/O pin 66 |
| Chân 77 | P67 — User I/O pin 67 |
| Chân 78 | P68 — User I/O pin 68 |
| Chân 79 | P69 — User I/O pin 69 |
| Chân 80 | P70 — User I/O pin 70 |
| Chân 81 | P71 — User I/O pin 71 |
| Chân 82 | P72 — User I/O pin 72 |
| Chân 83 | P73 — User I/O pin 73 |
| Chân 84 | P74 — User I/O pin 74 (last user I/O before pin 1) |
Ứng dụng tiêu biểu
XC3090LTM-125PC84C phù hợp cho 6 Áp dụngs: Legacy Industrial Control Logic, Telecom Interface Glue Logic, Legacy Peripheral Adapter Cards, Custom Test and Measurement Instrumentation, Avionics and Military Legacy Systems, Educational and Prototyping Platforms.
Legacy Industrial Control Logic
The XC3090LTM-125PC84C fits legacy industrial control logic replacements because its 320 CLBs and 138 user I/Os provide enough logic capacity for PLC-style state machines, encoder counters, and discrete I/O expansion interfaces typical of 1990s factory automation. The 125 MHz clock rate supports deterministic scan-time loops under 1 ms, and the low-voltage 3.3 V core reduces heat dissipation in enclosed control cabinets. Place the device between a configuration PROM and the parallel backplane bus, using its tri-state I/O buffers to drive 24 V optically-isolated I/O modules. The PLCC-84 socket mounting also simplifies field replacement on legacy equipment without requiring PCB rework. Engineers maintaining older PLCs, motor drives, or SCADA interface cards should evaluate this part when the original FPGA fails and modern drop-in equivalents are unavailable.
Được đề xuất
Telecom Interface Glue Logic
The XC3090LTM-125PC84C suits telecom interface glue logic because its 5000-gate capacity and 125 MHz toggle rate comfortably handle protocol-conversion state machines between E1/T1 framers, HDLC controllers, and backplane bus interfaces. The 138 user I/Os enable direct connection to 16-bit parallel data buses plus multiple serial framing signals without external bus transceivers. Its SRAM-based configuration allows field-upgradable firmware via a configuration PROM swap, critical for telecom equipment that requires remote logic updates. Use the device as a bus-master bridge between legacy telecom ASICs and newer microprocessors, leveraging its symmetric CLB array to place-and-route protocol FIFOs, CRC engines, and timing-recovery logic on a single chip.
Được đề xuất
Legacy Peripheral Adapter Cards
The XC3090LTM-125PC84C integrates seamlessly into legacy peripheral adapter cards for ISA, VME, or proprietary backplane systems because its 84-pin PLCC package and 138 I/Os support the wide parallel data and address buses required by these architectures. The 125 MHz internal clock rate enables 50 MHz external bus operation, sufficient for legacy peripheral throughput. Place the FPGA between the bus connector and the peripheral ASICs to implement custom register maps, DMA handshake logic, and interrupt controllers that were previously discrete TTL. The low-voltage core reduces 5 V backplane loading compared to original XC3090 designs, easing power-budget compliance on legacy motherboards.
Được đề xuất
Custom Test and Measurement Instrumentation
The XC3090LTM-125PC84C enables custom test and measurement instrument designs because its 125 MHz clock rate drives 80 MSPS logic-analyzer capture rates, while its 320 CLBs implement trigger sequencers, pattern generators, and protocol decoders in a single chip. The 138 user I/Os accommodate multi-channel probe pods and front-panel connector pinouts without external bus expanders. SRAM-based configuration supports rapid design iteration via PROM swaps during development. Use the device as the timing-and-control heart of a custom oscilloscope, logic analyzer, or boundary-scan tester, leveraging its on-chip JTAG support for board-level self-test access.
Được đề xuất
Avionics and Military Legacy Systems
The XC3090LTM-125PC84C is widely deployed in legacy avionics and military systems where the original Xilinx bitstream was qualified under DO-254 or MIL-HDBK-454, and any hardware change would force expensive re-certification. The 125 MHz clock rate, 5000-gate capacity, and 138 I/Os meet the timing and interface requirements of MIL-STD-1553 databus bridges, ARINC 429 transmitters, and radar timing generators from the 1990s. Maintain these systems by sourcing factory-sealed parts from authorized obsolete-stock distributors or approved franchise brokers. Note that the standard XC3090LTM-125PC84C is commercial grade; avionics deployments typically require the military-screened XC3090LTM-125BKN or BGA-equivalent variant, not included here.
Được đề xuất
Educational and Prototyping Platforms
The XC3090LTM-125PC84C remains useful in educational and FPGA-architecture prototyping platforms because its 5000-gate capacity and 84-pin PLCC package fit standard legacy development boards with breadboard-friendly socket mounting. The 125 MHz maximum clock rate lets students explore timing-closure concepts without requiring modern high-speed signaling, while the on-chip JTAG supports traditional boundary-scan labs. Use the device in university digital-logic courses or as a low-cost verification platform for bitstreams targeting the XC3000L architecture before porting to modern Xilinx devices. Its obsolete status and wide availability on the secondary market also make it affordable for classroom lab budgets.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho XC3090LTM-125PC84C — 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 | XC3090L-100PC84C | XC3090L-8PC84C | XC3090LTM-100PC84C | XC3090L-125PC84C | XC3090L-8PC84BKJ |
|---|---|---|---|---|---|---|
| Brand | Xilinx | Xilinx | Xilinx | Xilinx | Xilinx | Xilinx |
| Package | PLCC-84 (PC84) | PLCC-84 (PC84) - same | PLCC-84 (PC84) - same | PLCC-84 (PC84) - same | PLCC-84 (PC84) - same | PLCC-84 (PC84) - same |
| Maximum Clock Frequency | 125 MHz | 100 MHz | ~80 MHz | 100 MHz | 125 MHz | ~80 MHz |
| Family | XC3000L (low-voltage) | XC3000L (low-voltage) | XC3000L (low-voltage) | XC3000L (low-voltage) | XC3000L (low-voltage) | XC3000L (low-voltage) |
| Equivalent Gates | ~5000 | ~5000 | ~5000 | ~5000 | ~5000 | ~5000 |
| Configurable Logic Blocks (CLBs) | 320 | 320 | 320 | 320 | 320 | 320 |
| User I/Os | 138 | 138 | 138 | 138 | 138 | 138 |
| Core Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Package Grade | TM (commercial plastic) | Standard | Standard | TM (commercial plastic) | Standard | BKJ (burn-in screened) |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
Bảo phân biệt quan trọng
- 125 MHz top speed grade of the XC3000L family (vsXC3090L-100PC84C)
- TM commercial plastic package grade (vsXC3090L-8PC84BKJ)
- Low-voltage 3.3 V core (L variant) (vsXC3090-125PC84C (non-L))
Ghi chú thiết kế
The XC3090LTM-125PC84C requires both a 3.3 V core supply (VCC pins) and a 5 V I/O supply (VCCIO pins); these rails must power up in any order but must both be stable before the FPGA begins configuration. Decouple each VCC pin with a 0.1 uF ceramic capacitor placed within 5 mm of the package pin, and add a 10 uF bulk capacitor near the center of the PLCC-84 footprint. Estimated core current at 125 MHz with 100 percent CLB utilization: ~150 mA; add 20 percent headroom for transient spikes during configuration.
Because the XC3090LTM-125PC84C uses SRAM-based configuration, the bitstream is lost on every power-down. A configuration PROM such as the Xilinx XC1736 must be present on every board, or the FPGA will not boot. Do not rely on internal pull-ups to drive the PROGRAM pin - it must be driven actively by a supervisor or microcontroller. Verify the CCLK frequency stays below the PROM's rated output to avoid configuration errors.
At maximum 125 MHz toggle rate with 100 percent CLB utilization, the XC3090LTM-125PC84C dissipates approximately 0.5 W; the PLCC-84 plastic package has a typical theta_JA of 45 C/W, resulting in a 22 C junction-temperature rise above ambient. For enclosed industrial cabinets above 50 C ambient, add a small clip-on heatsink or upgrade airflow to keep Tj below 100 C. Avoid placing the PLCC-84 socket directly above heat-generating components such as linear regulators.
Route the CCLK configuration clock trace as a short, guarded line on the top PCB layer to minimize skew between DIN and CCLK at the FPGA pins. Keep the DONE pin trace away from fast-switching user I/O to avoid false DONE pulses during configuration. The four dedicated global-clock pins should be assigned only to the highest-frequency clocks in the design; tie unused global-clock pins to ground through a 10 kohm resistor.
Thông tin tuân thủ
Compliance status not stated in verified web data. The XC3000L family predates widespread RoHS adoption; original parts are likely non-RoHS. For RoHS-compliant replacement, consult authorized obsolete-stock distributors.
