MX29LV065TC-12 MCNIX [Macronix International], MX29LV065TC-12 Datasheet - Page 15

• Manufacturer Part Number: MX29LV065TC-12
• Description: 64M-BIT [8M x 8] CMOS EQUAL SECTOR FLASH MEMORY
• Manufacturer: MCNIX [Macronix International]

MX29LV065
is noted that all sectors are unprotected after the chip
unprotected algorithm is completed.
TEMPORARY SECTOR GROUP UNPRO-
TECTED OPERATION
This feature allows temporary unprotected of previously
protected sector to change data in-system. The Tempo-
rary Sector Unprotected mode is activated by setting
the RESET pin to VID(11.5V-12.5V). During this mode,
formerly protected sectors can be programmed or erased
as unprotected sector. Once VID is remove from the
RESET pin, all the previously protected sectors are pro-
tected again.
SILICON ID READ OPERATION
Flash memories are intended for use in applications where
the local CPU alters memory contents. As such, manu-
facturer and device codes must be accessible while the
device resides in the target system. PROM program-
mers typically access signature codes by raising A9 to
a high voltage. However, multiplexing high voltage onto
address lines is not generally desired system design prac-
tice.
MX29LV065 provides hardware method to access the
silicon ID read operation. Which method requires VID on
A9 pin, VIL on CE, OE, A6, and A1 pins. Which apply
VIL on A0 pin, the device will output MXIC's manufac-
ture code of C2H. Which apply VIH on A0 pin, the device
will output MX29LV065 device code of 93H.
P/N:PM0893
REV. 0.4, JUL. 22, 2003
15