ES29LV160F Datasheet, PDF (64/71 Pages) Excel Semiconductor Inc. – 16 Megabit (2 M x 8-Bit/1 M x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory

ES29LV160F
Excel Semiconductor Inc.
ESN ( Electronic Serial Number )
In devices that have an ESN, a Bottom Boot device will have the 16-byte (8-word) ESN in sector 0
at addresses 000000h-00000Fh in byte mode (or 000000h-000007h in word mode). In the Top
Boot device the ESN will be in sector 34 at addresses 1FFF00h-1FFF0Fh in byte mode (or
FFF80h-FFF87h in word mode).
Factory Code Service of ESI
Customers may opt to have their code programmed by ESI (factory service). A service called ESI
‘special code service’ is provide for customers. ESI ( factory ) can program the customer’s code,
with or without the random ESN, according to the customer request. The devices are then shipped
from ESI factory with the Security Sector permanently locked. Contact a ESI representative for
details on using ESI Special-Code service.
Customer-Lockable Device
The customer lockable version allows the security sector to be freely programmed or erased and
then permanently locked. Note that the ES29LV160F has a security sector size of 256 bytes (128
words). Note that the accelerated programming (ACC) and unlock bypass functions are not
available when programming the security sector.
Protection of the Security Sector
The security sector area can be protected using the following procedures: Write the three-cycle
“Enter security sector command” sequence, and then following the in-system sector protect
algorithm as shown in Fig. 7.3, This allows In-system protection of the security sector without
raising any device pin to a high voltage. To verify the protect/ unprotect status of the security
sector, follow the algorithm shown in Fig. A3.
Rev.0A (Dec 12, 2007) 64