This part is a kind of semiconductor called XC3S400.

Function of this product has (XC3S50 - XC3S5000) Spartan-3 FPGA Family.

Manufacturers : Xilinx

Image and pinout :

Some of the text within the PDF file :

R DS099 August 19, 2005 This document includes all four modules of the Spartan™-3 FPGA data sheet. Module 1: Introduction and Ordering Information DS099-1 (v1.5) August 19, 2005 8 pages • • • • • • Introduction Features Architectural Overview Array Sizes and Resources User I/O Chart Ordering Information w w a D . w S a t e e h U 4 t m o .c 0 Spartan-3 FPGA Family: Complete Data Sheet 0 0 Product Specification Module 3: DC and Switching Characteristics DS099-3 (v1.6) August 19, 2005 44 pages • DC Electrical Characteristics - Absolute Maximum Ratings - Supply Voltage Specifications - Recommended Operating Conditions - DC Characteristics Switching Characteristics - I/O Timing - Internal Logic Timing - DCM Timing - Configuration and JTAG Timing • Module 2: Fun [ ... ]

XC3S400 PDF Datasheet Download