AMD XC4005E-4PG156C

Overview

XC4005E-4PG156C from Xilinx is a Field-Programmable Gate Array (FPGA) with 5,000 usable gates, 156-pin plastic quad flat pack (PQFP) package, -4 speed grade (15 ns CLB propagation delay), and embedded SRAM-based configuration memory. It targets mid-complexity digital logic replacement in industrial control and communications interface designs.

For engineers reviewing the XC4005E-4PG156C datasheet, pinout, applications, or equivalent options, key selection criteria include CLB count, I/O pin count, speed grade timing, configuration mode support, and thermal performance in constrained PCB layouts.

Technical Context

The XC4005E-4PG156C implements a hierarchical architecture with Configurable Logic Blocks (CLBs), Input/Output Blocks (IOBs), and interconnect resources. It supports master serial, slave serial, and boundary-scan configuration modes using external PROM or processor-controlled loading.

Each CLB contains two 3-input lookup tables (LUTs), flip-flops with synchronous reset, and carry logic for arithmetic functions. The device uses SRAM-based configuration cells that require external initialization at power-up.

Key Specifications

Pinout & Package

XC4005E-4PG156C is housed in a 156-pin plastic quad flat pack (PQFP) with 0.65 mm lead pitch and 24.0 mm × 24.0 mm body size. Thermal pad is not present; standard surface-mount reflow profile applies.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC4005E-4PG156C, the -3PG156C offers higher timing performance without layout change, while the -4PQ160C trades pin compatibility for enhanced routability and thermal dissipation-neither is drop-in replaceable without validation.

Availability

XC4005E-4PG156C is available at Aetrix Electronics and suitable for industrial control systems, legacy bus adapters, and telecom line card designs requiring stable component supply across extended production lifecycles.

Supply support for XC4005E-4PG156C 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 FPGA technology and developed the XC4000E family as a cost-optimized, 5 V-compatible logic replacement platform.

The XC4000E series was designed specifically for mid-density digital logic consolidation in industrial, telecom, and instrumentation applications where reprogrammability and 5 V I/O tolerance were essential.

FAQ

What is the maximum operating frequency supported by XC4005E-4PG156C?

The XC4005E-4PG156C has a -4 speed grade specifying 15 ns CLB propagation delay, enabling reliable operation up to approximately 40 MHz in typical register-to-register paths. Actual system frequency depends on design topology, routing, and I/O timing constraints-not a fixed clock limit. The XC4005E-4PG156C does not include internal PLLs or DLLs for clock multiplication or deskew.

Does XC4005E-4PG156C support in-system programming (ISP)?

XC4005E-4PG156C supports in-system programming via its JTAG boundary-scan interface (IEEE 1149.1), allowing configuration bitstream updates without removing the device from the PCB. However, it requires external circuitry to manage V_CC sequencing and PROGRAM pin assertion during reload. The XC4005E-4PG156C itself does not contain flash or EEPROM for nonvolatile storage.

What configuration memory is required for XC4005E-4PG156C?

The XC4005E-4PG156C requires external serial PROM (e.g., Xilinx XC18V02) or microcontroller-driven parallel loading to initialize its SRAM configuration cells at power-up. No internal nonvolatile memory exists. Configuration time is ~200 ms for full 192 CLB load via master serial mode. The XC4005E-4PG156C must be reconfigured each time power is applied.

Can XC4005E-4PG156C interface directly with 3.3 V logic?

No, XC4005E-4PG156C operates exclusively at 5.0 V and is not 3.3 V tolerant. Its I/O structure is designed for TTL/CMOS 5 V signaling levels, with VIH(min) = 2.0 V and VIL(max) = 0.8 V. Direct connection to 3.3 V devices risks overvoltage damage or unreliable logic thresholds. Level translation circuitry is mandatory when interfacing with XC4005E-4PG156C.

Is XC4005E-4PG156C RoHS compliant?

The XC4005E-4PG156C was manufactured prior to RoHS Directive enforcement and uses leaded solder in its PQFP package. It is not RoHS compliant. Xilinx did not release a Pb-free version of the XC4005E-4PG156C. For new designs requiring RoHS compliance, migration to Spartan-3 or later families is recommended. The XC4005E-4PG156C remains available as a legacy component with full traceability.