AMD XC3190A-4PC84C

Overview

XC3190A-4PC84C from Xilinx is a high-performance, 6,000-gate Field Programmable Gate Array (FPGA) in a 84-pin plastic leaded chip carrier (PLCC) package, featuring 144 user I/Os, 928 maximum flip-flops, and guaranteed 1.55–4.1 ns logic delays. It implements configurable logic blocks (CLBs), programmable I/O blocks (IOBs), and hierarchical interconnect resources for digital system integration in telecom and industrial control applications.

For engineers reviewing the XC3190A-4PC84C datasheet, pinout, applications, or equivalent options, this page delivers verified architecture details, CLB array size (16 × 20), configuration memory bit count (64,160), Soft Startup feature, and TTL/CMOS input threshold programmability - all critical for legacy FPGA migration, timing closure, and power-up noise mitigation.

Technical Context

The XC3190A-4PC84C implements a static-memory-based FPGA architecture with a 16 × 20 array of Configurable Logic Blocks (CLBs), each containing dual 4-input LUTs, two flip-flops, and programmable clock/enable/reset controls. Its IOBs support registered/direct I/O paths, slew-rate-limited outputs, and programmable pull-ups with TTL or CMOS input thresholds.

Configuration uses serial or parallel loading into distributed SRAM cells; bitstream is compatible with XC3000A/XC3000L families. The device includes horizontal longlines, direct interconnect between adjacent CLBs, and on-chip crystal oscillator amplifier support - enabling high-fan-out clock distribution and low-skew signal routing without external buffers.

Key Specifications

Pinout & Package

XC3190A-4PC84C is housed in an 84-pin Plastic Leaded Chip Carrier (PLCC) package with J-lead configuration, 25.4 mm × 25.4 mm body size, and 1.27 mm pitch. Pinout follows Xilinx XC3000-series standard footprint, supporting full pin-to-pin compatibility across XC3000A/L and XC3100A/L families.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC3190A-4PC84C, the -5PC84C offers improved timing margin without layout change, while XC3195A-4PC84C provides greater logic capacity at the cost of non-interchangeable packaging and routing - making the former a direct upgrade path and the latter a capacity-driven replacement.

Availability

XC3190A-4PC84C is available at Aetrix Electronics and suitable for telecom infrastructure upgrades, industrial control retrofits, medical equipment refurbishment, and avionics maintenance requiring stable component supply and long-term obsolescence management.

Supply support for XC3190A-4PC84C 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 design tools and architectures.

The XC3100A family - including XC3190A-4PC84C - was engineered for high-speed, high-density digital system integration in mission-critical applications where performance, reliability, and design reuse were paramount.

FAQ

What is the maximum system clock frequency supported by XC3190A-4PC84C?

The XC3190A-4PC84C supports system clock speeds over 85 MHz, with guaranteed flip-flop toggle rates up to 370 MHz and logic delays ranging from 1.55 ns to 4.1 ns depending on routing and loading. These values are specified under worst-case commercial conditions (5 V ±10%, 70°C) and reflect actual silicon measurements - not theoretical limits. Timing analysis must be performed using Xilinx Foundation or Alliance software with the -4 speed grade model for XC3190A-4PC84C.

Is XC3190A-4PC84C pin-compatible with XC3090A-4PC84C?

Yes, XC3190A-4PC84C is fully pin-compatible with XC3090A-4PC84C and other members of the XC3000A/L and XC3100A/L families. All share identical 84-pin PLCC footprints, I/O pin assignments, and power/ground pin locations. This allows direct PCB substitution where logic density and timing margins permit - though XC3190A-4PC84C provides higher gate count (6,000 vs. 5,000–6,000 typical) and enhanced interconnect resources.

Does XC3190A-4PC84C support in-system reprogramming?

Yes, XC3190A-4PC84C supports in-system reprogramming via serial or parallel configuration modes. Its static RAM-based configuration memory can be reloaded dynamically without power cycle, enabling field updates and logic changes during operation. The device includes dedicated PROGRAM, INIT, and CCLK pins to manage configuration sequencing, and its Soft Startup feature ensures safe I/O behavior after each reload - a key capability confirmed in Xilinx documentation for XC3190A-4PC84C.

What are the I/O voltage levels supported by XC3190A-4PC84C?

XC3190A-4PC84C operates exclusively at 5 V nominal supply and supports both TTL and CMOS input thresholds - selectable per IOB via configuration bits. Input thresholds are programmable to recognize either 2.0 V (TTL) or 3.5 V (CMOS) logic-high levels. Outputs swing rail-to-rail (0–5 V) with 8 mA drive strength. It is not compatible with 3.3 V or mixed-voltage I/O domains - for those, XC3190L variants must be used instead of XC3190A-4PC84C.

How does the Soft Startup feature work in XC3190A-4PC84C?

Soft Startup in XC3190A-4PC84C automatically limits the slew rate of all outputs during initial power-up and configuration completion, preventing simultaneous switching noise and ground bounce. This behavior is hardwired and active only once per power cycle - after startup, individual I/O slew rates revert to configuration-controlled settings. The feature is intrinsic to XC3190A-4PC84C's silicon design and requires no external components or firmware enablement.