AMD XC3195-PG175CPH

Overview

XC3195-PG175CPH from Xilinx is a high-density Field Programmable Gate Array (FPGA) with 7,500 usable logic gates, 484 Configurable Logic Blocks (22 × 22 array), and 176 user I/Os in a 175-pin plastic quad flat package. It supports system clock speeds over 85 MHz, offers 1.5 ns logic delay, and integrates on-chip crystal oscillator amplifier for timing-critical embedded control and digital signal routing applications.

For engineers reviewing the XC3195-PG175CPH datasheet, pinout, applications, or equivalent options, key selection criteria include guaranteed 370 MHz flip-flop toggle rate, 8 mA output drive capability, soft-start slew-rate limiting at power-up, static configuration memory architecture, and full bitstream compatibility with XC3000A/XC3100A families.

Technical Context

The XC3195-PG175CPH implements a static RAM-based configuration architecture using distributed CMOS inverters as nonvolatile memory cells, enabling reprogrammability without external PROM. Its IOBs support programmable TTL/CMOS input thresholds, registered/direct I/O paths, and slew-rate-controlled outputs with passive pull-up.

Each CLB contains dual flip-flops, five-input look-up tables (LUTs), and configurable enable/clock/reset controls. Interconnect uses hierarchical routing: direct connections between adjacent blocks, general-purpose metal grids with bidirectional buffers, and dedicated horizontal longlines for global signals like clocks and buses.

Key Specifications

Pinout & Package

XC3195-PG175CPH is housed in a 175-pin plastic quad flat package (PQFP) with 44 pins per side and 0.65 mm pitch. The package supports surface-mount assembly and provides thermal and mechanical compatibility with legacy XC3000-series PCB footprints.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC3195-PG175CPH, the XC3195A-PQ175 offers superior thermal stability in harsh environments, while the XC3195A-PG223 delivers greater I/O scalability and reduced power delivery impedance - both retain identical configuration bitstreams and CLB architecture.

Availability

XC3195-PG175CPH is available at Aetrix Electronics and suitable for industrial motion control, legacy system emulation, protocol bridge interface, and digital signal routing hub applications requiring stable component supply across extended product lifecycles.

Supply support for XC3195-PG175CPH 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 established industry standards for reconfigurable logic architecture, development tools, and bitstream security.

The XC3000 Series - including XC3195-PG175CPH - was designed for high-reliability, medium-complexity digital system integration in industrial automation, test equipment, and military electronics where long-term availability and deterministic timing were critical.

FAQ

What is the maximum system clock frequency supported by XC3195-PG175CPH?

The XC3195-PG175CPH supports system clock speeds over 85 MHz as specified in the official Xilinx documentation. This rating reflects guaranteed timing closure for synchronous logic paths under worst-case process/voltage/temperature conditions. The device achieves this via low-skew clock distribution networks and 1.5 ns logic delays, making XC3195-PG175CPH suitable for real-time control loops and high-speed data acquisition systems.

Does XC3195-PG175CPH require an external configuration PROM?

Yes, XC3195-PG175CPH requires external configuration storage such as the XC17XX series Serial Configuration PROMs. The FPGA itself contains no nonvolatile configuration memory; it loads its bitstream at power-up from an external EEPROM, EPROM, or ROM. This architecture enables field reprogramming and design iteration without hardware changes, and XC3195-PG175CPH supports both serial and parallel configuration modes.

Is XC3195-PG175CPH pin-compatible with other XC3000-series devices?

XC3195-PG175CPH is 100% pin-out compatible with other members of the XC3100A family and shares footprint compatibility with the XC3000A family. However, it is not pin-compatible with lower-density XC3000-series variants (e.g., XC3064A) due to differing I/O counts and array dimensions. The 175-pin PQFP package used by XC3195-PG175CPH matches only the XC3195A-PQ175 and XC3195A-PG175 variants.

What voltage levels does XC3195-PG175CPH support on its I/O pins?

XC3195-PG175CPH operates with a 5 V core supply and supports programmable TTL or CMOS input thresholds on all user I/O pins. Input threshold selection is configured per IOB via configuration bits, allowing mixed-signal interfacing with both 5 V TTL and 5 V CMOS peripherals without external level translators. Output drive is CMOS-compatible with 8 mA sink/source capability.

How does the Soft Startup feature function in XC3195-PG175CPH?

The Soft Startup feature in XC3195-PG175CPH automatically applies slew-rate limiting to all outputs during initial power-up activation, preventing simultaneous switching noise and ground bounce. This behavior is hardwired into the configuration logic and occurs only once per power cycle - after startup, individual output slew rates are controlled by per-IOB configuration bits. XC3195-PG175CPH implements this without external components or firmware intervention.