MX26LV160
AUTOMATIC PROGRAMMING
The MX26LV160 is word/byte programmable using the
Automatic Programming algorithm. The Automatic Pro-
gramming algorithm makes the external system do not
need to have time out sequence nor to verify the data
programmed.
the device automatically times the erase pulse width,
provides the erase verification, and counts the number of
sequences. A status bit toggling between consecutive
read cycles provides feedback to the user as to the sta-
tus 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
happens first.
MXIC's high speed Flash technology combines years of
EPROM experience to produce the highest levels of
quality, reliability, and cost effectiveness. The MX26LV160
electrically erases all bits simultaneously using Fowler-
Nordheim tunneling. The bytes are programmed by us-
ing the EPROM programming mechanism of hot electron
injection.
During a program cycle, the state-machine will control
the program sequences and command register will not
respond to any command set. After the state machine
has completed its task, it will allow the command regis-
ter to respond to its full command set.
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
toggling 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.
The Automatic Erase algorithm automatically programs
the entire array prior to electrical erase. The timing and
verification of electrical erase are controlled internally
within the device.
AUTOMATIC SELECT
The auto select mode provides manufacturer and de-
vice identification, through identifier codes output on
Q7~Q0. This mode is mainly adapted for programming
equipment on the device to be programmed with its pro-
gramming algorithm. When programming by high voltage
method, automatic select mode requires VID (11V to
12V) on address pin A9 and 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 command through the command
register without requiring VID, as shown in table 4.
AUTOMATIC SECTOR ERASE
The MX26LV160 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 internally within the de-
vice. 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
P/N:PM1090
REV. 1.0, NOV. 08, 2004
6
MCNIX [ MACRONIX INTERNATIONAL ]
