MX29LV400CBTC-70G Macronix, MX29LV400CBTC-70G Datasheet - Page 24

• Manufacturer Part Number: MX29LV400CBTC-70G
• Description: MX29LV Series 3 V 4 Mb (524k x 8/256k x 16) 70 ns Parallel Flash - TSOP-48
• Manufacturer: Macronix

RESET
In the following situations, executing reset command will reset device back to read array mode:
• Among erase command sequence (before the full command set is completed)
• Sector erase time-out period
• Erase fail (while Q5 is high)
• Among program command sequence (before the full command set is completed, erase-suspended program
• Program fail (while Q5 is high, and erase-suspended program fail is included)
• Read silicon ID mode
• Sector protect verify
• CFI mode
While device is at the status of program fail or erase fail (Q5 is high), user must issue reset command to reset
device back to read array mode. While the device is in read silicon ID mode, sector protect verify or CFI mode,
user must issue reset command to reset device back to read array mode.
When the device is in the progress of programming (not program fail) or erasing (not erase fail), device will ig-
nore reset command.
AUTOMATIC SELECT COMMAND SEQUENCE
Automatic Select mode is used to access the manufacturer ID, device ID and to verify whether or not a sector is
protected. The automatic select mode has four command cycles. The first two are unlock cycles, and followed by
a specific command. The fourth cycle is a normal read cycle, and user can read at any address any number of
times without entering another command sequence. The reset command is necessary to exit the Automatic Se-
lect mode and back to read array. The following table shows the identification code with corresponding address.
There is an alternative method to that shown in Table 2, which is intended for EPROM programmers and requires
Vhv on address bit A9.
P/N:PM1300
Read Silicon ID
Manufacturer ID
Device ID
Sector Protect Verify
included)
Word
Word
Word
Byte
Byte
Byte
(Sector address) X 02
(Sector address) X 04
Address
X00
X00
X01
X02
24
MX29LV400C T/B
MX29LV800C T/B
MX29LV160C T/B
Data (Hex)
00/01
00/01
00C2
C2
ID
ID
Representation
Top/Bottom Boot Sector
Top/Bottom Boot Sector
Unprotected/protected
Unprotected/protected
REV. 2.6, DEC. 22, 2011