AMD XC3090-100PQ160C

Overview

XC3090-100PQ160C from Xilinx is a Field Programmable Gate Array (FPGA) with 320 configurable logic blocks (CLBs), 144 user-definable I/Os, and guaranteed 100 MHz maximum flip-flop toggle rate. It uses advanced CMOS static memory technology, supports TTL/CMOS input thresholds, and operates at 4.5–5.5 V in industrial temperature range (–40°C to +85°C). It is used in legacy logic replacement and subsystem integration applications.

For engineers reviewing the XC3090-100PQ160C datasheet, pinout, applications, or equivalent options, key selection considerations include CLB count (320), I/O count (144), speed grade (-100), PQFP-160 package compatibility, and bitstream compatibility with XC3100 family devices.

Technical Context

The XC3090-100PQ160C implements a static RAM-based FPGA architecture with configurable logic blocks arranged in a 16 × 20 array and 40 longlines for global signal routing. Its IOBs support both registered and direct input/output paths, with programmable slew-rate control and internal pull-up resistors on unused pads.

Timing is defined by speed grade -100: max CLB combinatorial delay is 7.0 ns, CLB clock-to-Q delay is 5.0 ns, and IOB pad-to-registered-in delay is 17 ns. All timing values are worst-case over industrial operating conditions and validated using MIL-M-38510/605–compliant test patterns.

Key Specifications

Pinout & Package

PQFP-160 (Plastic Quad Flat Pack, 160 pins, 28 × 28 mm body, 0.65 mm pitch). Pinout conforms to Xilinx XC3000 family standard layout with dedicated configuration, clock, global reset, and I/O bank assignments.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar FPGA logic replacement applications.

Compared with XC3090-100PQ160C, the XC3090-100PQ160I extends thermal operating range without changing PCB layout, while the XC3090A-100PQ160C improves performance and power efficiency but requires validation of timing closure in updated tool flows.

Availability

XC3090-100PQ160C is available at Aetrix Electronics and suitable for industrial control, legacy test equipment modernization, and avionics ground-support applications requiring stable component supply and long-term obsolescence management.

Supply support for XC3090-100PQ160C includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Xilinx, Inc. pioneered commercial FPGA technology and developed the XC3000 family as the industry's first widely adopted SRAM-based programmable logic platform.

The XC3000 Logic Cell Array family was designed for flexible digital logic implementation in cost-sensitive, medium-complexity applications where gate-count scalability and field reconfigurability were essential.

FAQ

Is XC3090-100PQ160C pin-compatible with other XC3000 devices in PQFP-160 package?

Yes, XC3090-100PQ160C shares identical PQFP-160 mechanical footprint and pin assignment with XC3064-100PQ160C and XC3042-100PQ160C. However, I/O count and CLB resources differ: XC3090-100PQ160C provides 144 I/Os and 320 CLBs, whereas XC3064-100PQ160C offers 120 I/Os and 224 CLBs. Board-level reuse is possible only if design fits within smaller device resource limits.

What is the maximum clock frequency supported by XC3090-100PQ160C in actual designs?

The XC3090-100PQ160C guarantees a 100 MHz flip-flop toggle rate under worst-case industrial conditions. Actual achievable system clock frequency depends on placement and routing; typical post-PAR results for well-optimized designs reach 80–95 MHz. Critical paths involving longline routing or multiple CLB stages may limit performance below the guaranteed toggle rate.

Does XC3090-100PQ160C support in-system programming?

XC3090-100PQ160C does not support true in-system programming (ISP) like flash-based FPGAs. Configuration is loaded via serial or parallel PROM at power-up using INIT and PROGRAM control signals. Reprogramming requires cycling power or asserting PROGRAM low, making dynamic reconfiguration impractical. The XC3090-100PQ160C relies on external configuration memory and lacks internal nonvolatile storage.

Can XC3090-100PQ160C operate at 3.3 V?

No, XC3090-100PQ160C requires a 4.5–5.5 V supply and is not rated for 3.3 V operation. Its I/O buffers, internal logic, and configuration memory are designed for 5 V CMOS/TTL compatibility. Attempting 3.3 V operation risks functional failure, timing violation, or damage due to insufficient noise margin and incorrect threshold referencing.

Is XC3090-100PQ160C still recommended for new designs?

No - Xilinx explicitly states "All new designs should use XC3000A." The XC3090-100PQ160C is maintained solely for legacy system support and repair. XC3000A variants offer improved timing, lower power, and enhanced tool support. For new projects, XC3090A-100PQ160C or later families (XC4000, Spartan) are appropriate alternatives.