AMD XC4036EX-4PG411I

Overview

XC4036EX-4PG411I from Xilinx is a Field-Programmable Gate Array (FPGA) with 36,000 usable gates, 411-pin plastic quad flat pack (PQFP) package, -4 speed grade (15 ns CLB propagation delay), and industrial temperature range (-40°C to +100°C). It implements synchronous digital logic for embedded control, protocol bridging, and real-time signal conditioning in programmable logic systems.

For engineers reviewing the XC4036EX-4PG411I datasheet, pinout, applications, or equivalent options, key selection criteria include gate count, I/O count (312 user I/Os), speed grade timing compliance, PQFP thermal and routing constraints, and legacy 5V CMOS interface compatibility.

Technical Context

The XC4036EX-4PG411I belongs to the Xilinx XC4000E FPGA family, built on 0.5 µm CMOS technology with configurable logic blocks (CLBs), input/output blocks (IOBs), and interconnect resources. It supports SRAM-based configuration via serial or parallel mode and includes dedicated carry logic for arithmetic functions.

It features 312 user-programmable I/O pins, three global clock buffers, and supports IEEE 1149.1 (JTAG) boundary-scan testing. Configuration data is volatile and requires external PROM or processor loading at power-up.

Key Specifications

Pinout & Package

XC4036EX-4PG411I uses a 411-pin plastic quad flat pack (PQFP) with 102 pins per side and two corner pins omitted (pin 1 and pin 411 are not used). The package has 312 user I/Os, 8 dedicated power/ground pairs, 3 global clock inputs, JTAG TDI/TDO/TMS/TCK, and configuration mode pins (INIT, PROGRAM, DONE).

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC4036EX-4PG411I, the XC4036XL-4PG411I reduces power consumption at the cost of slightly relaxed voltage noise margin, while the XC4044EX-4PG411I extends logic capacity within identical mechanical and timing constraints-enabling scalable design reuse across product variants.

Availability

XC4036EX-4PG411I is available at Aetrix Electronics and suitable for industrial motion control, legacy bus interface bridge, automated test equipment, and digital signal acquisition front-end applications requiring stable component supply and long-term obsolescence management.

Supply support for XC4036EX-4PG411I 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 delivers programmable logic solutions for aerospace, industrial, and communications markets.

The XC4000E family was designed for high-density, 5V-system-compatible logic replacement in industrial and instrumentation applications where reliability and pin compatibility across speed grades were essential.

FAQ

What is the maximum operating frequency supported by XC4036EX-4PG411I?

The XC4036EX-4PG411I has a -4 speed grade specifying a 15 ns CLB propagation delay, supporting system clock frequencies up to approximately 66 MHz for fully registered paths. Actual maximum frequency depends on design topology, routing congestion, and I/O timing constraints. XC4036EX-4PG411I timing analysis must be performed using Xilinx Foundation or Alliance software with device-specific libraries.

Does XC4036EX-4PG411I support in-system programming?

XC4036EX-4PG411I supports in-system configuration via JTAG (IEEE 1149.1) using the TDI/TDO/TMS/TCK pins, but its configuration memory is volatile SRAM. Therefore, it requires external nonvolatile storage (e.g., serial PROM) or a host processor to reload the bitstream after each power cycle. XC4036EX-4PG411I does not support true in-system reprogramming without external configuration source.

Is XC4036EX-4PG411I RoHS compliant?

XC4036EX-4PG411I was manufactured prior to RoHS Directive enforcement and uses leaded solder in its 411-pin PQFP package. It is not RoHS compliant. For RoHS-compliant alternatives, consider later-generation Spartan or Artix families - XC4036EX-4PG411I remains available for legacy repair and obsolescence-sensitive deployments under exemption clauses.

What configuration modes are supported by XC4036EX-4PG411I?

XC4036EX-4PG411I supports Master Serial, Slave Serial, and SelectMAP configuration modes. Master Serial uses an internal oscillator and external PROM; Slave Serial accepts bitstream from a controller; SelectMAP enables high-speed parallel loading via 8- or 16-bit bus. Mode selection is controlled by M0–M2 pins at power-up. XC4036EX-4PG411I requires correct mode pin strapping for reliable initialization.

Can XC4036EX-4PG411I interface directly with 3.3V logic devices?

XC4036EX-4PG411I I/Os are 5V-tolerant but operate at V_CCO = 5V; they are not 3.3V-output compatible without external level-shifting. Driving 3.3V inputs risks overvoltage damage unless series resistors or clamping diodes are used. XC4036EX-4PG411I should only connect to 3.3V devices with proper interface circuitry or voltage translation ICs.