
************************************************************************
************************************************************************
**                                                                    **
**    Application notes for Winbond FLASH memory devices              **
**                                                                    **
**    To find the application notes for your device search for the    **
**    'core' part name.  As an example using the 39V040A 32 pin PLCC  **
**    you would search on '39V040'                                    **
**                                                                    **
************************************************************************
************************************************************************


************************************************************************

 39V040A
 ----------
 39V040FA
 ----------
 49V002
 ---------
 49V002F
 ----------

 These devices have OTP Boot Block protection. If the Boot Blocks are
 locked, they CANNOT be reprogrammed or erased!  To determine if the
 the Boot Block is locked you can Read(Load) the device then check the
 Boot Block protection status in the "SECTOR CONFIGURATION" table.

 The "SECTOR CONFIGURATION" table is located in the "Sector" tab under
"Programmer Properties" dialog box for TaskLink Users.

 The "SECTOR CONFIGURATION" table is located in in the "Device Configure"
 screen.for Hiterm/Terminal Users.

 To protect the Boot Blocks:

 For 49V002 & 49V002F:
 Security Fuse 1 enables protection: 3C000 hex -> 3FFFF hex

 For 39V040A & 39V040FA:
 Security Fuse 1 enables protection: 7C000 hex -> 3FFFF hex
 Security Fuse 2 enables protection: 70000 hex -> 7FFFF hex

************************************************************************
************************************************************************

