MX25L1605 . PIN CONFIGURATIONS. SYMBOL. DESCRIPTION. CS#. Chip Select. SI. Serial Data Input. SO/PO7(1) Serial Data Output or Parallel Data output/ An Issue related to WRSR Command for the MX25L1605 /3205A/6405. AN 17.01. MXIC Proprietary & Confidential. December 2006. Background: Macronix Jan 1, 2008 The MX25L1605D device is identical in form, fit and function to the previous generation MX25L1605 product. Additional functions added in this Jan 11, 2010 Eon Silicon Solution Inc. This Application Note may be revised by subsequent versions 1. 2005 Eon Silicon Solution Inc. www.eonssi.com. 8 (4K-byte)sectors are grouped as. 1 (32K-byte)block. MX25L1605 V.S. . SST 25VF016. 4KB sector. 64KB block. 4KB sector. 64KB and. 32KB block address.