Chapter 2: Fast, Asynchronous Sram - Xilinx Spartan-3 User Manual

R
Fast, Asynchronous SRAM
The Spartan-3 Starter Kit board has a megabyte of fast asynchronous SRAM, surface-
mounted to the backside of the board. The memory array includes two 256Kx16 ISSI
IS61LV25616AL-10T
appears in
Spartan-3 Starter Kit Board User Guide
UG130 (v1.1) May 13, 2005
10 ns SRAM devices, as shown in
Figure A-8.
(see Table 2-3)
(see Table 2-3)
CE1
UB1
LB1
Spartan-3
FPGA
(see Table 2-4)
(see Table 2-4)
(see (see Table 2-1) Table 2-1)
CE2
UB2
LB2
WE
OE
(xx) = FPGA pin number
Figure 2-1: FPGA to SRAM Connections
www.xilinx.com
1-800-255-7778
Figure 2-1. A detailed schematic
256Kx16 SRAM
I/O[15:0]
A[17:0]
(P7)
CE
(T4)
UB
(P6)
LB
WE
OE
256Kx16 SRAM
I/O[15:0]
A[17:0]
(N5)
CE
(R4)
UB
(P5)
LB
(G3)
WE
(K4)
OE
Chapter 2
ISSI
(10 ns)
IC10
ISSI
(10 ns)
IC11
UG130_c2_01_042604
11