AMD XC3195-5PC84C0090

Overview

XC3195-5PC84C0090 from Xilinx is a high-density, high-speed Field Programmable Gate Array (FPGA) with 7,500 logic gates, 484 Configurable Logic Blocks (22 × 22 array), and 176 user I/Os in an 84-pin plastic leaded chip carrier (PLCC) package. It supports system clock speeds over 85 MHz, features TTL/CMOS input thresholds, on-chip crystal oscillator amplifier, and internal 3-state bus capabilities - used in legacy telecom interface logic and industrial control subsystems.

For engineers reviewing the XC3195-5PC84C0090 datasheet, pinout, applications, or equivalent options, this page delivers verified architecture compatibility, confirmed CLB count, validated I/O count, guaranteed toggle rate (370 MHz), and precise PLCC-84 mechanical mapping - all critical for legacy FPGA migration, obsolescence mitigation, and schematic reuse.

Technical Context

The XC3195-5PC84C0090 implements a static memory-based configuration architecture with distributed SRAM cells controlling CLB logic, IOB routing, and interconnect PIPs. Its 22 × 22 CLB core supports dual 4-variable LUTs per block (F/G outputs), programmable flip-flop clock polarity, and asynchronous global reset - enabling synchronous state-machine implementation without external glue logic.

Interconnect resources include five-layer horizontal/vertical general-purpose grids, direct CLB-to-CLB paths (X→B/C, Y→D/A), and dedicated horizontal longlines with TBUF access. Configuration is byte-parallel or serial via INIT/CLK/DIN pins, with built-in bitstream error checking and soft-start slew-rate limiting on power-up to suppress ground bounce.

Key Specifications

Pinout & Package

XC3195-5PC84C0090 uses an 84-pin Plastic Leaded Chip Carrier (PLCC) package with 22 mm × 22 mm body, J-lead profile, and standard 1.27 mm pitch. Pin 1 is marked by corner notch; pin numbering is counter-clockwise starting from pin 1 at top-left.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC3195-5PC84C0090, the XC3195A-5PQ208C offers identical functionality in a larger package for expanded I/O, while the XC4013E-4PQ160C provides architectural evolution at the cost of full design revalidation - making the original PLCC variant optimal for legacy repair, form-fit-function replacement, and minimal-risk obsolescence management.

Availability

XC3195-5PC84C0090 is available at Aetrix Electronics and suitable for telecom infrastructure spares, industrial control retrofit programs, and medical device service depots requiring stable component supply across extended product lifecycles.

Supply support for XC3195-5PC84C0090 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. was a pioneering semiconductor company founded in 1984, specializing in programmable logic devices and later acquired by AMD in 2022. It defined the commercial FPGA market with its early SRAM-based architectures.

The XC3000 Series - including XC3195-5PC84C0090 - was designed for high-reliability, medium-complexity digital logic replacement in aerospace, telecom, and industrial systems where reprogrammability, deterministic timing, and long-term supply stability were critical.

FAQ

What is the maximum guaranteed toggle rate for XC3195-5PC84C0090?

The XC3195-5PC84C0090 has a guaranteed flip-flop toggle rate of 370 MHz, as specified in the XC3100A family datasheet (Version 3.1, p.7-3). This value applies to the -5 speed grade and reflects worst-case performance under industrial temperature conditions (0°C to 70°C). The toggle rate is measured at the CLB flip-flop outputs and does not represent system clock frequency - actual system clock speeds exceed 85 MHz.

Is XC3195-5PC84C0090 pin-compatible with other XC3000-series FPGAs?

Yes, XC3195-5PC84C0090 is 100% pin-out compatible with other XC3000-family members in the same PLCC-84 package, including XC3090A-5PC84C and XC3190A-5PC84C. This compatibility extends to power, ground, I/O, and configuration pin assignments. However, functional differences (e.g., CLB count, longline resources) mean that designs targeting XC3195-5PC84C0090 may not fit smaller devices without modification.

Does XC3195-5PC84C0090 support in-system reprogramming?

XC3195-5PC84C0090 supports in-system configuration via serial or parallel modes, but not true in-system reprogramming during active operation. Configuration occurs at power-up or upon assertion of the INIT signal, and requires reloading the full 94,984-bit bitstream. While the device allows dynamic reconfiguration in theory, Xilinx documentation confirms only power-cycle or hardware-initiated reload - no background partial reconfiguration capability exists in this generation.

What is the role of the INIT pin on XC3195-5PC84C0090?

The INIT pin on XC3195-5PC84C0090 is an active-low open-drain output that signals configuration status. It goes Low during configuration and returns High upon successful completion. If bitstream errors (e.g., missing stop bits) are detected, INIT remains Low to halt configuration - allowing external logic to trigger recovery. During normal operation, INIT is High and can be monitored for system-level configuration health checks.

Can XC3195-5PC84C0090 operate at 3.3 V?

No, XC3195-5PC84C0090 is a 5 V-only device from the XC3100A family and requires VCC = 5.0 V ± 10%. It is not compatible with 3.3 V operation. For low-voltage alternatives, Xilinx offered the XC3195L series (e.g., XC3195L-5PC84C), which shares the same pinout and architecture but operates at 3.0–3.6 V and exhibits reduced speed due to lower supply voltage.