AMD XC3142-5TQ100C

Overview

XC3142-5TQ100C from Xilinx is a 3,000-gate Field Programmable Gate Array (FPGA) in the XC3100A family, featuring a 12 × 12 Configurable Logic Block (CLB) array, 96 user I/Os, and guaranteed 190 MHz flip-flop toggle rate with 1.55 ns logic delay. It operates at 5 V, supports TTL/CMOS input thresholds, and integrates on-chip crystal oscillator amplifier for clock generation in digital subsystems such as protocol bridges and industrial control logic.

For engineers reviewing the XC3142-5TQ100C datasheet, pinout, applications, or equivalent options, key selection criteria include its 5 V supply compatibility, TQFP-100 package footprint, 190 MHz toggle performance, Soft Startup slew-rate limiting, and bitstream compatibility with XC3000A/XC3000L families for legacy design migration.

Technical Context

The XC3142-5TQ100C implements a static memory-based FPGA architecture with distributed configuration memory cells, programmable I/O Blocks (IOBs) supporting registered/direct inputs and 3-state outputs, and Configurable Logic Blocks (CLBs) each containing dual flip-flops, five-input look-up tables, and programmable clock/enable/reset controls. Its interconnect includes general-purpose metal grids, direct CLB-to-CLB paths, and horizontal longlines with TBUF access.

Configuration is loaded via serial or parallel mode using external PROMs (e.g., XC17XX series), with error-checking of bitstream stop bits and automatic INIT low assertion on configuration failure. Soft Startup enforces slew-rate-limited output activation at power-up to suppress ground bounce, while individual IOB outputs retain configurable slew rate post-initialization.

Key Specifications

Pinout & Package

XC3142-5TQ100C is housed in a 100-pin Thin Quad Flat Pack (TQFP) with 0.5 mm pitch, 14 mm × 14 mm body, and exposed thermal pad. Pinout follows Xilinx XC3000-series standard footprint, enabling mechanical and routing 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 XC3142-5TQ100C, the XC3142-6TQ100C offers higher timing margin for demanding clock domains, while the XC3042A-5TQ100C sacrifices reliability features (Soft Startup, bitstream validation) for full backward compatibility with older XC3000A toolchains - making XC3142-5TQ100C the optimal balance of performance, robustness, and upgrade path.

Availability

XC3142-5TQ100C is available at Aetrix Electronics and suitable for industrial control, test equipment, avionics data concentration, and legacy bus bridging applications requiring stable component supply and long-term lifecycle support.

Supply support for XC3142-5TQ100C 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 developed the XC3000 series as the industry's first widely adopted field-programmable logic platform.

The XC3100A family-including XC3142-5TQ100C-was engineered to deliver ultra-high-speed digital logic integration for mission-critical systems where deterministic timing, radiation-hardened configuration memory, and in-system reprogrammability were essential.

FAQ

What is the maximum system clock frequency supported by XC3142-5TQ100C?

The XC3142-5TQ100C guarantees a 190 MHz flip-flop toggle rate and supports system clock speeds over 85 MHz. Its 1.55 ns logic delay and optimized interconnect enable reliable operation at 85 MHz with timing margin; actual achievable clock frequency depends on design topology and place-and-route results, but the device has been validated in production systems running at 80–85 MHz with full timing closure.

Does XC3142-5TQ100C support in-system reprogramming?

Yes, XC3142-5TQ100C supports in-system reprogramming via its serial or parallel configuration interface. The device accepts new bitstreams after power-up using the PROGRAM and INIT signals, allowing logic updates without removing the IC from the board. This capability is used in field-upgradable industrial controllers and adaptive test equipment where logic changes must occur during maintenance windows.

Is XC3142-5TQ100C pin-compatible with XC3042A-5TQ100C?

Yes, XC3142-5TQ100C is 100% pin-out compatible with XC3042A-5TQ100C and other XC3000-series devices in TQFP-100 packaging. Both share identical power, ground, I/O, clock, and configuration pin assignments. However, XC3142-5TQ100C adds Soft Startup and bitstream error checking not present in XC3042A-5TQ100C, so firmware must account for INIT behavior differences.

What development tools are required to program XC3142-5TQ100C?

XC3142-5TQ100C is programmed using Xilinx Foundation Series or Alliance Series software (v2.x–v3.x), which provides schematic capture, automatic place-and-route, logic/timing simulation, and bitstream generation. The design flow outputs a .bit file loaded via XC17XX serial PROM or parallel programming cable. No third-party tools are required, though interfaces exist for Viewlogic, Cadence, and Mentor Graphics environments.

How does the Soft Startup feature function in XC3142-5TQ100C?

Soft Startup in XC3142-5TQ100C automatically enforces slew-rate limiting on all outputs during initial power-up activation, preventing simultaneous switching noise and ground bounce. This occurs once, immediately after configuration completes and before user mode begins. After startup, each IOB's slew rate reverts to its individually configured setting-either full-speed or slew-limited-based on configuration bits, ensuring both EMI control and performance where needed.