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MX29LV160B Datasheet(PDF) 6 Page - Macronix International

Part No. MX29LV160B
Description  16M-BIT [2Mx8/1Mx16] CMOS SINGLE VOLTAGE 3V ONLY FLASH MEMORY
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Maker  MCNIX [Macronix International]
Homepage  http://www.macronix.com
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P/N:PM1041
MX29LV160BT/BB
REV. 1.2, JUL. 01, 2004
R
AUTOMATIC PROGRAMMING
The MX29LV160BT/BB is byte/word programmable us-
ing the Automatic Programming algorithm. The Auto-
matic Programming algorithm makes the external sys-
tem do not need to have time out sequence nor to verify
the data programmed. The typical chip programming
time at room temperature of the MX29LV160BT/BB is
less than 18 sec (byte)/12 sec (word).
AUTOMATIC PROGRAMMING ALGORITHM
MXIC's Automatic Programming algorithm requires the
user to only write program set-up commands (including
2 unlock write cycle and A0H) and a program command
(program data and address). The device automatically
times the programming pulse width, provides the pro-
gram verification, and counts the number of sequences.
A status bit similar to DATA polling and a status bit tog-
gling between consecutive read cycles, provide feed-
back to the user as to the status of the programming
operation. Refer to write operation status, table 7, for
more information on these status bits.
AUTOMATIC CHIP ERASE
The entire chip is bulk erased using 10 ms erase pulses
according to MXIC's Automatic Chip Erase algorithm.
Typical erasure at room temperature is accomplished in
less than 25 second. The Automatic Erase algorithm
automatically programs the entire array prior to electri-
cal erase. The timing and verification of electrical erase
are controlled internally within the device.
AUTOMATIC SECTOR ERASE
The MX29LV160BT/BB is sector(s) erasable using
MXIC's Auto Sector Erase algorithm. The Automatic
Sector Erase algorithm automatically programs the
specified sector(s) prior to electrical erase. The timing
and verification of electrical erase are controlled inter-
nally within the device. An erase operation can erase
one sector, multiple sectors, or the entire device.
AUTOMATIC ERASE ALGORITHM
MXIC's Automatic Erase algorithm requires the user to
write commands to the command register using stan-
dard microprocessor write timings. The device will auto-
matically pre-program and verify the entire array. Then
the device automatically times the erase pulse width,
provides the erase verification, and counts the number
of sequences. A status bit toggling between consecu-
tive read cycles provides feedback to the user as to the
status of the erasing operation.
Register contents serve as inputs to an internal state-
machine which controls the erase and programming cir-
cuitry. During write cycles, the command register inter-
nally latches address and data needed for the program-
ming and erase operations. During a system write cycle,
addresses are latched on the falling edge, and data are
latched on the rising edge of WE or CE, whichever hap-
pens first.
MXIC's Flash technology combines years of EPROM
experience to produce the highest levels of quality, reli-
ability, and cost effectiveness. The MX29LV160BT/BB
electrically erases all bits simultaneously using Fowler-
Nordheim tunneling. The bytes are programmed by us-
ing the EPROM programming mechanism of hot elec-
tron injection.
During a program cycle, the state-machine will control
the program sequences and command register will not
respond to any command set. During a Sector Erase
cycle, the command register will only respond to Erase
Suspend command. After Erase Suspend is completed,
the device stays in read mode. After the state machine
has completed its task, it will allow the command regis-
ter to respond to its full command set.
AUTOMATIC SELECT
The automatic select mode provides manufacturer and
device identification, and sector protection verification,
through identifier codes output on Q7~Q0. This mode is
mainly adapted for programming equipment on the de-
vice to be programmed with its programming algorithm.
When programming by high voltage method, automatic
select mode requires VID (11.5V to 12.5V) on address
pin A9. Other address pin A6, A1 and A0 as referring to
Table 3. In addition, to access the automatic select codes
in-system, the host can issue the automatic select com-
mand through the command register without requiring
VID, as shown in table 5.
To verify whether or not sector being protected, the sec-
tor address must appear on the appropriate highest or-




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