XC3S400AN-4FTG256I Xilinx Inc, XC3S400AN-4FTG256I Datasheet - Page 51

• 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

Erase Commands
Sector Protect and Sector Lockdown Prevent Erase Operations
Erased State
Spartan-3AN FPGA In-System Flash User Guide
UG333 (v2.1) January 15, 2009
R
The Spartan
operations for maximum application flexibility.
•
•
•
The
erase operations. A page, block, or sector erase command will not occur if the operation
targets a location within a sector that is actively protected via the
Sector Lockdown
Erase commands erase the selected page, block, or sector and return the contents to a
logical ‘1’, or 0xFF on a byte basis. Erase commands do not affect the contents of any page,
block or sector in a protected or locked down sector.
The
The
The
Sector Protection
Page Erase
Block Erase
Sector Erase
®
-3AN FPGA In-System Flash (ISF) memory supports multiple levels of erase
features.
command erases the smallest possible unit, a single ISF memory page.
command erases a group of eight pages.
command erases all the pages within an ISF memory sector.
and
www.xilinx.com
Sector Lockdown
features prevent accidental or unauthorized
Sector Protection
Chapter 5
or
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