AMD XC3142A-3PQ100C

Overview

XC3142A-3PQ100C from AMD is a Field-Programmable Gate Array (FPGA) featuring 1,500 usable gates, 72 I/O pins, and a 3 ns gate delay. It implements synchronous logic with configurable CLBs and interconnect resources, targeting low-complexity digital control and interface bridging in industrial instrumentation.

For engineers reviewing the XC3142A-3PQ100C datasheet, pinout, applications, or equivalent options, key selection criteria include gate count, I/O count, speed grade (-3), PQ100 package compatibility, and legacy Xilinx 3100A family design migration support.

Technical Context

The XC3142A-3PQ100C belongs to the Xilinx XC3100A FPGA family, built on a CMOS process with SRAM-based configuration memory. It uses a segmented interconnect architecture and configurable logic blocks (CLBs) each containing two 3-input lookup tables (LUTs) and flip-flops.

Configuration is performed via serial mode using an external PROM or parallel mode through the 72-pin I/O bus. The device supports IEEE 1149.1 JTAG boundary-scan testing and includes dedicated global clock and reset routing networks.

Key Specifications

Pinout & Package

PQ100 plastic quad flatpack package with 100 leads, 0.65 mm pitch, and exposed thermal pad (non-electrical). Pin 1 marked by dot; pin numbering follows counter-clockwise sequence from top-left corner.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC3142A-3PQ100C, the XC3136A-3PQ100C offers gate reduction for cost-sensitive volume production, while the XC3164A-3PQ100C provides headroom for logic growth-both retain identical timing, packaging, and configuration compatibility.

Availability

XC3142A-3PQ100C is available at Aetrix Electronics and suitable for industrial control, test equipment, and avionics subsystems requiring stable component supply and long-term obsolescence management.

Supply support for XC3142A-3PQ100C 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 (now part of AMD) pioneered commercial FPGAs and established foundational architectures for reconfigurable logic design.

The XC3100A family was engineered for cost-effective, low-power digital logic replacement in industrial and instrumentation systems where ASIC NRE costs were prohibitive.

FAQ

What is the maximum operating frequency supported by XC3142A-3PQ100C?

The XC3142A-3PQ100C has a -3 speed grade specifying a 3 ns maximum CLB propagation delay, enabling reliable operation up to 33 MHz for synchronous logic paths. Actual system frequency depends on routing delay and logic depth; timing analysis must be performed per design using Xilinx Foundation or Alliance software tools.

Does XC3142A-3PQ100C require external configuration memory?

Yes, XC3142A-3PQ100C is SRAM-based and requires external configuration memory (e.g., Xilinx XC1700-series serial PROM or parallel EPROM) to reload its logic definition on power-up. Configuration can occur in serial or parallel mode, with JTAG also supporting in-system programming.

Is XC3142A-3PQ100C pin-compatible with other XC3100A family members?

Yes, XC3142A-3PQ100C shares the same PQ100 package and pinout with XC3136A-3PQ100C and XC3164A-3PQ100C. All three support identical I/O voltage levels, clocking, and configuration interfaces-enabling drop-in substitution based on gate count requirements.

Can XC3142A-3PQ100C operate at 3.3 V?

No, XC3142A-3PQ100C is a 5 V-only device requiring VCC = 5.0 V ±5%. Its I/O structure and internal transistors are not rated for 3.3 V operation; using 3.3 V risks functional failure or permanent damage. Level-shifting circuitry is required for interfacing with 3.3 V systems.

What JTAG capabilities does XC3142A-3PQ100C support?

XC3142A-3PQ100C implements full IEEE 1149.1 JTAG functionality including boundary-scan testing, device identification, and in-system programming. Pins TMS, TCK, TDI, and TDO (PQ100 Pins 7–10) enable standardized test access without requiring dedicated programming headers or external adapters.