AMD XC4005-5PQ160C

Overview

XC4005-5PQ160C from Xilinx is a third-generation Field-Programmable Gate Array (FPGA) with 5,000 usable gates, 196 Configurable Logic Blocks (CLBs), and 112 user I/O pins in a 160-pin Plastic Quad Flat Package (PQFP). It features dual 4-input function generators per CLB, on-chip RAM (6,272 bits), fast carry logic, and eight global low-skew clock networks - enabling high-speed synchronous designs up to 60 MHz in applications such as digital signal processing and microprocessor peripheral interfacing.

For engineers reviewing the XC4005-5PQ160C datasheet, pinout, applications, or equivalent options, key selection criteria include its -5 speed grade (5 ns CLB propagation delay), 160-pin PQFP package compatibility, 112 I/O count, distributed RAM capability per CLB, and IEEE 1149.1 boundary-scan support for board-level testability.

Technical Context

The XC4005-5PQ160C implements a symmetric CLB architecture with two independent 4-input LUTs (F' and G'), a third 3-input LUT (H') combining their outputs, and two edge-triggered D flip-flops with programmable asynchronous set/reset. Each CLB provides 13 inputs and 4 outputs, supporting wide combinational functions (up to 9 inputs), pipelined arithmetic, and dual-register output paths without sacrificing combinatorial throughput.

Its interconnect hierarchy includes eight global low-skew nets, double-length and single-length routing lines, and four edge-mounted wide decoders (42 inputs max per decoder). The IOB supports programmable input setup time, slew-rate control, 12 mA sink per output (pairable to 24 mA), and IEEE 1149.1 boundary-scan logic - all configurable via serial or parallel PROM loading in six supported modes.

Key Specifications

Pinout & Package

XC4005-5PQ160C is housed in a 160-pin Plastic Quad Flat Package (PQFP) with 40 pins per side, 0.65 mm pitch, and 28×28 mm body size. Pin numbering follows standard counter-clockwise convention starting from pin 1 (top-left corner, marked with dot or notch).

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC4005-5PQ160C, the -6 variant trades 10 MHz system clock headroom for lower unit cost, while the XC4005A-5PQ160C retains speed but reduces routing flexibility - making the original XC4005-5PQ160C optimal for complex, timing-critical, high-I/O-count implementations requiring full XC4000-family routing capacity.

Availability

XC4005-5PQ160C is available at Aetrix Electronics and suitable for industrial control systems, test equipment development, and legacy FPGA-based communication gateway designs requiring stable component supply and long-term obsolescence management.

Supply support for XC4005-5PQ160C 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, Inc. is a pioneering semiconductor company founded in 1984, specializing in programmable logic devices and now part of AMD. It introduced the first commercial FPGA and drove industry adoption of reconfigurable computing.

The XC4000 family was designed to deliver high-density, high-performance logic implementation for mid-range system integration - bridging the gap between CPLDs and custom ASICs in applications demanding both flexibility and deterministic timing.

FAQ

What is the maximum guaranteed system clock frequency for XC4005-5PQ160C?

The XC4005-5PQ160C is rated for synchronous system clock operation up to 60 MHz, based on its -5 speed grade (5 ns CLB propagation delay) and architectural features including fast carry logic and eight global low-skew clock networks. This performance assumes proper PCB layout, adequate power decoupling, and timing-constrained synthesis using Xilinx XACT tools - actual achievable frequency depends on design topology and routing congestion.

Does XC4005-5PQ160C support in-system programming via JTAG?

Yes, XC4005-5PQ160C includes full IEEE 1149.1-compatible boundary-scan logic with TCK, TMS, TDI, and TDO pins. This enables in-system programming, configuration verification, and structural testing without removing the device from the board. The JTAG interface supports configuration bitstream loading and readback, though flip-flop content readback requires explicit snapshot mode activation during configuration.

How much on-chip RAM does XC4005-5PQ160C provide, and how is it structured?

XC4005-5PQ160C provides 6,272 bits of on-chip RAM, implemented distributively across its 196 CLBs. Each CLB's F' and G' function generators can be configured as either a 16×2-bit or 32×1-bit synchronous read/write memory array. Read access time matches logic delay at 5.5 ns; write cycle time is approximately 8 ns - significantly faster than discrete SRAM solutions and enabling compact FIFOs, status registers, and DMA buffers.

Can XC4005-5PQ160C I/O pins drive 5 V TTL loads?

XC4005-5PQ160C I/O pins are designed for 3.3 V operation (VCCO = 3.3 V) and are not 5 V tolerant. While they can interface with 5 V TTL inputs via pull-up resistors (due to TTL's high input impedance), direct connection to 5 V outputs risks damage. For true 5 V interfacing, external level-shifting buffers or the XC4005H variant (which supports optional p-channel outputs) must be used - the standard XC4005-5PQ160C requires VCCO ≤ 3.3 V.

What configuration modes are supported by XC4005-5PQ160C?

XC4005-5PQ160C supports six configuration modes: master serial, master parallel, slave serial, slave parallel, peripheral synchronous (8-bit), and peripheral asynchronous. These allow flexible boot architectures - e.g., master serial using a small serial PROM, or peripheral synchronous for host-controlled reconfiguration. All modes use the same configuration bitstream format, and mode selection is determined by strapping pins (M0–M2) at power-up.