AMD XC3195-5PQ160I

Overview

XC3195-5PQ160I from Xilinx is a high-density, high-speed Field Programmable Gate Array (FPGA) with 7,500 usable logic gates, 484 Configurable Logic Blocks (22 × 22 array), 176 user I/Os, and guaranteed 370 MHz flip-flop toggle rate. It implements synchronous digital logic via static configuration memory, supports TTL/CMOS input thresholds, and integrates on-chip crystal oscillator amplifier for clock generation in embedded control and communications subsystems.

For engineers reviewing the XC3195-5PQ160I datasheet, pinout, applications, or equivalent options, key selection criteria include its 5 ns logic delay (–5 speed grade), PQ160 ceramic quad flat pack package, 3.3 V nominal supply compatibility, Soft Startup slew-rate limiting, and bitstream compatibility with XC3000A/L and XC3100L families.

Technical Context

The XC3195-5PQ160I implements a static RAM-based FPGA architecture with perimeter I/O Blocks (IOBs), a core array of CLBs, and hierarchical interconnect resources including general-purpose metal grids, direct CLB-to-CLB paths, and horizontal longlines. Each IOB provides programmable registered/direct I/O, TTL/CMOS threshold selection, and slew-rate controlled outputs.

Each CLB contains dual 4-input LUTs (F/G), two edge-triggered D flip-flops sharing asynchronous reset (RD) and enable clock (EC), five logic inputs (A–E), and programmable clock inversion. Configuration is loaded serially or in parallel from external PROMs, with error-checking of bitstream framing and automatic Soft Startup initialization that limits output slew during power-up to suppress ground bounce.

Key Specifications

Pinout & Package

PQ160 is a 160-pin ceramic quad flat pack (CQFP) with 40 pins per side, 0.65 mm pitch, and lead-free finish compliant with MIL-STD-883 Class B screening. Package dimensions are 28.0 × 28.0 × 3.6 mm.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar FPGA-based logic integration applications.

Compared with XC3195-5PQ160I, the –6 variant trades 60 MHz toggle headroom for lower unit cost and relaxed timing closure, while the –4 variant adds 50 MHz margin at increased test cost and stricter PCB routing constraints - making the –5 grade the optimal balance for production avionics and industrial control designs.

Availability

XC3195-5PQ160I is available at Aetrix Electronics and suitable for industrial motion control, legacy protocol bridging, avionics data concentration, and automated test equipment requiring stable component supply across extended lifecycle programs.

Supply support for XC3195-5PQ160I 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, founded in 1984, pioneered commercial FPGA technology and delivered the industry's first SRAM-based reprogrammable logic devices.

The XC3000 Series - including XC3195-5PQ160I - was designed for high-reliability, medium-complexity digital logic replacement in aerospace, industrial, and telecom infrastructure where long-term availability and radiation-tolerant configuration memory were critical.

FAQ

What is the maximum operating temperature range for XC3195-5PQ160I?

The XC3195-5PQ160I is specified for industrial temperature operation from –40 °C to +85 °C. Its PQ160 ceramic package provides thermal stability and mechanical robustness suitable for harsh environments. This rating applies to the full functional specification including 370 MHz toggle rate and 1.55 ns logic delay. The XC3195-5PQ160I maintains configuration memory integrity under thermal cycling due to its hardened static RAM cell design.

Does XC3195-5PQ160I support in-system reconfiguration?

Yes, XC3195-5PQ160I supports in-system logic changes via serial or parallel configuration reload without power cycle. The device accepts new bitstreams through its dedicated PROGRAM and INIT pins while powered, enabling field-upgradable logic functions. Configuration memory retains state during brief power interruptions, and Soft Startup ensures safe re-initialization of I/Os after reload. This capability is fully documented in the November 1998 XC3000 Series datasheet.

Can XC3195-5PQ160I replace XC3090A devices on existing PCBs?

Yes, XC3195-5PQ160I is footprint-compatible with XC3090A in PQ160 packaging and shares identical pinout and voltage requirements. However, it delivers 25% more logic capacity (7,500 vs. 6,000 gates) and higher speed (370 MHz vs. 310 MHz toggle). Existing XC3090A bitstreams will configure XC3195-5PQ160I correctly due to architectural upward compatibility, though unused CLBs remain unconfigured unless explicitly targeted in new designs.

What configuration memory technology does XC3195-5PQ160I use?

XC3195-5PQ160I uses distributed static RAM (SRAM) cells for configuration storage - each cell consisting of two cross-coupled CMOS inverters and a pass transistor. This design provides high noise immunity and radiation tolerance, with zero observed soft errors even under high alpha-particle flux. Unlike volatile DRAM, these cells retain state indefinitely while powered and require no refresh, making them ideal for mission-critical applications where configuration persistence is essential.

Is XC3195-5PQ160I RoHS compliant?

The XC3195-5PQ160I predates RoHS legislation (enacted 2006) and was manufactured with leaded solder terminations in its original PQ160 ceramic package. While Xilinx later introduced RoHS-compliant variants for newer families, no official lead-free version of XC3195-5PQ160I was released. Aetrix Electronics supplies only factory-original, traceable units meeting the original MIL-STD-883 Class B screening specifications.