XC3S400AN-4FTG256I Xilinx Inc, XC3S400AN-4FTG256I Datasheet - Page 71

• Manufacturer Part Number: XC3S400AN-4FTG256I
• Description: IC FPGA SPARTAN-3AN 256FTBGA
• Manufacturer: Xilinx Inc
• Series: Spartan™-3ANr

Specifications of XC3S400AN-4FTG256I

• Number Of Logic Elements/cells: 8064
• Number Of Labs/clbs: 896
• Total Ram Bits: 368640
• Number Of I /o: 195
• Number Of Gates: 400000
• Voltage - Supply: 1.14 V ~ 1.26 V
• Mounting Type: Surface Mount
• Operating Temperature: -40°C ~ 100°C
• Package / Case: 256-LBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Power Management
Active Mode
Standby Mode
Spartan-3AN FPGA In-System Flash User Guide
UG333 (v2.1) January 15, 2009
R
The Spartan
V
until 20 ms after VCCAUX has reached at least 2.5V. In general the ISF adds no significant
current to the FPGA current. Standby power consumption is approximately 100 µ A , and is
included in the quiescent I
mode applies whenever the ISF memory is de-selected (CSB pin is High for 35 μs or
longer).
A
Table 7-1: Power-Related ISF Memory Guidelines (V
The ISF memory is in the Active mode whenever the FPGA application drives the
SPI_ACCESS CSB pin Low. The amount of power consumed depends on the operation and
the CLK frequency, as shown in
The ISF memory initially powers up in Standby mode. The ISF memory also automatically
re-enters Standby mode whenever the CSB input on the SPI_ACCESS primitive is High
longer than 35 µs. The associated current drops to approximately 100 μA.
Notes:
1. Approximate values added to I
Active current during read operation
from In-System Flash memory array
Active current during read operation
from SRAM page buffer
Active current during an In-System Flash
program or erase operation
CCAUX
Table 7-1
power rail to the Spartan-3AN FPGA. Note that write commands are not allowed
®
-3AN FPGA In-System Flash (ISF) memory consumes power on the 3.3V
Description
outlines the ISF dynamic current consumption requirements.
www.xilinx.com
CCAUX
CCAUX
Table
numbers in the
in addition to FPGA requirements.
7-1.
F
F
F
F
CLK
CLK
CLK
CLK
Condition
= 20 MHz
= 33 MHz
= 50 MHz
= 20 MHz
Spartan-3AN FPGA data
–
CCAUX
Typ
11
12
7
8
–
=3.6V)
Max
Chapter 7
10
12
15
20
17
Units
sheet. Standby
mA
mA
mA
mA
mA
71