AMD XC3142-5TQ144C

Overview

XC3142-5TQ144C from Xilinx is a high-performance Field Programmable Gate Array (FPGA) with 3,000 maximum logic gates, 144 Configurable Logic Blocks (12 × 12 array), and 96 user I/Os in a 144-pin Thin Quad Flat Package (TQFP). It supports system clock speeds over 85 MHz, features TTL/CMOS input thresholds, on-chip crystal oscillator amplifier, and internal 3-state bus capability - used in legacy telecom interface logic, industrial control subsystems, and reconfigurable digital signal routing.

For engineers reviewing the XC3142-5TQ144C datasheet, pinout, applications, or equivalent options, key selection criteria include guaranteed 1.55–4.1 ns logic delays, 190–370 MHz flip-flop toggle rates, soft-start slew-rate limiting for ground-bounce mitigation, configuration bitstream error checking, and compatibility with XC3000A/XC3100A bitstreams and footprints.

Technical Context

The XC3142-5TQ144C implements a static CMOS FPGA architecture with distributed configuration memory cells controlling IOBs, CLBs, and interconnect resources. Its IOBs support registered/direct inputs, programmable TTL/CMOS thresholds, passive pull-up, and slew-rate-controlled outputs; CLBs contain dual flip-flops, five-input LUTs, and configurable enable/clock/reset paths.

Interconnect uses general-purpose metal grids, direct CLB-to-CLB paths (e.g., X→B-right, Y→D-up), and horizontal longlines with TBUF access. Configuration is loaded serially or in byte-parallel mode via external PROM (e.g., XC17XX series), with automatic power-up initialization and soft startup holding all outputs slew-rate limited during initial power-up.

Key Specifications

Pinout & Package

XC3142-5TQ144C is housed in a 144-pin Thin Quad Flat Package (TQFP) with 0.5 mm pitch, 20 mm × 20 mm body size, and exposed thermal pad. Pin functions follow Xilinx XC3100A family standard pinout mapping.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC3142-5TQ144C, XC3142-5PQ144C offers superior thermal and environmental robustness in ceramic packaging but at higher cost and weight, while XC3142-6TQ144C delivers measurable timing headroom for performance-critical paths without changing PCB layout or firmware.

Availability

XC3142-5TQ144C is available at Aetrix Electronics and suitable for legacy telecom infrastructure upgrades, industrial control retrofits, and reconfigurable instrumentation requiring stable component supply amid long product lifecycles.

Supply support for XC3142-5TQ144C 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 programming models.

The XC3100A family - including XC3142-5TQ144C - was designed for high-speed, high-density digital logic replacement in volume production systems where pin compatibility, bitstream reuse, and deterministic timing were critical.

FAQ

What is the maximum operating frequency supported by XC3142-5TQ144C?

The XC3142-5TQ144C supports system clock speeds over 85 MHz and guarantees flip-flop toggle rates from 190 MHz to 370 MHz depending on routing and loading conditions. Its 1.55–4.1 ns logic delay range enables reliable operation in synchronous designs with critical paths meeting sub-8 ns timing budgets. The actual achievable frequency depends on design topology, I/O loading, and power supply stability - verified using Xilinx Foundation or M1 timing analyzer tools with the XC3142-5TQ144C speed file.

Does XC3142-5TQ144C support in-system reprogramming?

Yes, XC3142-5TQ144C supports in-system reprogramming via its standard configuration interface. The device accepts serial or byte-parallel configuration data from external PROMs (e.g., XC17XX series) or host processors, allowing full logic redefinition without removal from the PCB. Soft startup ensures safe output behavior during reload, and bitstream error checking provides fault detection - making XC3142-5TQ144C suitable for field-upgradable control logic where functional updates must occur without hardware intervention.

Is XC3142-5TQ144C pin-compatible with other XC3000-series devices?

Yes, XC3142-5TQ144C is 100% pin-out compatible with XC3000A, XC3000L, XC3100A, and XC3100L family members in the same package variant (TQ144). This includes identical I/O pin assignments, power/ground locations, and configuration control signals (PROGRAM, INIT, DONE, RESET). However, CLB count and internal routing resources differ - XC3142-5TQ144C contains 144 CLBs versus 100 in XC3030A - so PCB layout remains identical but bitstream compatibility requires matching family architecture.

What voltage levels does XC3142-5TQ144C accept on its I/O pins?

XC3142-5TQ144C operates at 5 V nominal supply and supports both TTL and CMOS input thresholds, selectable per IOB via configuration bits. Input buffers recognize TTL logic levels (VIH ≥ 2.0 V, VIL ≤ 0.8 V) or CMOS levels (VIH ≥ 3.5 V, VIL ≤ 1.5 V) - enabling direct interfacing with legacy 5 V microcontrollers, bus transceivers, and peripheral ICs without level shifters. Output drive is CMOS-compatible with 8 mA sink/source capability, matching standard TTL fan-out requirements.

How does the Soft Startup feature function in XC3142-5TQ144C?

The Soft Startup feature in XC3142-5TQ144C automatically limits the slew rate of all outputs during initial power-up and configuration completion, preventing simultaneous switching noise and ground bounce. This occurs before user mode activation and is independent of individual IOB slew-rate configuration settings. Once the device enters user mode, output transition speeds revert to values set by per-pin configuration bits - ensuring predictable timing behavior in steady-state operation while protecting system integrity during boot.