MX29F040
4M-BIT [512KX8] CMOS EQUAL SECTOR FLASH MEMORY
FEATURES
• 524,288 x 8 only
• Single power supply operation
- 5.0V only operation for read, erase and program operation
• Fast access time: 55/70/90/120ns
• Low power consumption
- 30mA maximum active current(5MHz)
- 1uA typical standby current
• Command register architecture
- Byte Programming (7us typical)
- Sector Erase
8 equal sectors of 64K-Byte each
• Auto Erase (chip & sector) and Auto Program
- Automatically erase any combination of sectors with
Erase Suspend capability.
- Automatically program and verify data at specified
address
• Erase suspend/Erase Resume
- Suspends an erase operation to read data from, or
•
•
•
•
•
•
•
•
•
program data to, another sector that is not being
erased, then resumes the erase.
Status Reply
- Data polling & Toggle bit for detection of program
and erase cycle completion.
Sector protect/unprotect for 5V only system or 5V/
12V system.
Sector protection
- Hardware method to disable any combination of
sectors from program or erase operations
100,000 minimum erase/program cycles
Latch-up protected to 100mA from -1V to VCC+1V
Low VCC write inhibit is equal to or less than 3.2V
Package type:
- 32-pin PLCC, TSOP or PDIP
Compatibility with JEDEC standard
- Pinout and software compatible with single-power
supply Flash
20 years data retention
GENERAL DESCRIPTION
The MX29F040 is a 4-mega bit Flash memory organized
as 512K bytes of 8 bits. MXIC's Flash memories offer
the most cost-effective and reliable read/write non-volatile random access memory. The MX29F040 is packaged in 32-pin PLCC, TSOP, PDIP. It is designed to be
reprogrammed and erased in system or in standard
EPROM programmers.
during erase and programming, while maintaining maximum EPROM compatibility.
The standard MX29F040 offers access time as fast as
55ns, allowing operation of high-speed microprocessors
without wait states. To eliminate bus contention, the
MX29F040 has separate chip enable (CE) and output
enable (OE) controls.
MXIC Flash technology reliably stores memory
contents even after 100,000 erase and program
cycles. The MXIC cell is designed to optimize the
erase and program mechanisms. In addition, the
combination of advanced tunnel oxide processing
and low internal electric fields for erase and
programming operations produces reliable cycling.
The MX29F040 uses a 5.0V±10% VCC supply to
perform the High Reliability Erase and auto
Program/Erase algorithms.
MXIC's Flash memories augment EPROM functionality
with in-circuit electrical erasure and programming. The
MX29F040 uses a command register to manage this
functionality. The command register allows for 100%
TTL level control inputs and fixed power supply levels
The highest degree of latch-up protection is
achieved with MXIC's proprietary non-epi process.
Latch-up protection is proved for stresses up to 100
milliamps on address and data pin from -1V to VCC
+ 1V.
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MX29F040
PIN CONFIGURATIONS
A7
32
A17
1
WE
VCC
A16
4
A18
5
A15
VCC
WE
A17
A14
A13
A8
A9
A11
OE
A10
CE
Q7
Q6
Q5
Q4
Q3
30
29
A14
A6
A13
A5
A8
A4
A3
A9
MX29F040
9
25
A11
A2
OE
A1
A10
A0
CE
21
20
Q5
Q4
17
Q7
Q6
13
14
Q3
Q0
GND
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
Q2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Q1
A18
A16
A15
A12
A7
A6
A5
A4
A3
A2
A1
A0
Q0
Q1
Q2
GND
A12
32 PLCC
MX29F040
32 PDIP
32 TSOP (Standard Type) (8mm x 20mm)
A11
A9
A8
A13
A14
A17
WE
VCC
A18
A16
A15
A12
A7
A6
A5
A4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
MX29F040
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
OE
A10
CE
Q7
Q6
Q5
Q4
Q3
GND
Q2
Q1
Q0
A0
A1
A2
A3
SECTOR STRUCTURE
PIN DESCRIPTION
SYMBOL
A0~A18
Q0~Q7
CE
WE
OE
GND
VCC
MX29F040 SECTOR ADDRESS TABLE
PIN NAME
Address Input
Data Input/Output
Chip Enable Input
Write Enable Input
Output Enable Input
Ground Pin
+5.0V single power supply
Sector
SA0
SA1
SA2
SA3
SA4
SA5
SA6
SA7
A18
0
0
0
0
1
1
1
1
A17
0
0
1
1
0
0
1
1
A16
0
1
0
1
0
1
0
1
Address Range
00000h-0FFFFh
10000h-1FFFFh
20000h-2FFFFh
30000h-3FFFFh
40000h-4FFFFh
50000h-5FFFFh
60000h-6FFFFh
70000h-7FFFFh
Note: All sectors are 64 Kbytes in size.
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MX29F040
BLOCK DIAGRAM
WRITE
CE
OE
WE
CONTROL
PROGRAM/ERASE
STATE
INPUT
LOGIC
HIGH VOLTAGE
MACHINE
(WSM)
LATCH
A0-A18
BUFFER
FLASH
REGISTER
ARRAY
ARRAY
Y-DECODER
AND
X-DECODER
ADDRESS
STATE
MX29F040
Y-PASS GATE
SOURCE
HV
COMMAND
DATA
DECODER
SENSE
AMPLIFIER
PGM
DATA
HV
COMMAND
DATA LATCH
PROGRAM
DATA LATCH
Q0-Q7
I/O BUFFER
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MX29F040
AUTOMATIC PROGRAMMING
AUTOMATIC ERASE ALGORITHM
The MX29F040 is byte programmable using the Automatic Programming algorithm. The Automatic Programming algorithm makes the external system do not need
to have time out sequence nor to verify the data programmed. The typical chip programming time at room
temperature of the MX29F040 is less than 4 seconds.
MXIC's Automatic Erase algorithm requires the user to
write commands to the command register using standard microprocessor write timings. The device will automatically 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 consecutive read cycles provides feedback to the user as to the
status of the programming operation.
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 4 second. 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.
Register contents serve as inputs to an internal statemachine which controls the erase and programming circuitry. During write cycles, the command register internally latches address and data needed for the programming and erase operations. During a system write cycle,
addresses are latched on the falling edge of WE or CE,
whichever happens later, and data are latched on the
rising edge of WE or CE, whichever happens first.
AUTOMATIC SECTOR ERASE
MXIC's Flash technology combines years of EPROM
experience to produce the highest levels of quality, reliability, and cost effectiveness. The MX29F040 electrically
erases all bits simultaneously using Fowler-Nordheim
tunneling. The bytes are programmed by using the
EPROM programming mechanism of hot electron injection.
The MX29F040 is sector(s) erasable using MXIC's
Auto Sector Erase algorithm. Sector erase modes
allow sectors of the array to be erased in one erase
cycle. 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
device.
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 register to respond to its full command set.
AUTOMATIC PROGRAMMING ALGORITHM
MXIC's Automatic Programming algorithm require 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 program verification, and counts the number of sequences. A status
bit similar to DATA polling and a status bit toggling between consecutive read cycles, provide feedback to the
user as to the status of the programming operation.
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MX29F040
TABLE 1. SOFTWARE COMMAND DEFINITIONS
First Bus
Second Bus
Third Bus
Fourth Bus
Fifth Bus
Sixth Bus
Bus
Cycle
Cycle
Cycle
Cycle
Cycle
Cycle
Cycle
Addr
Data
1
XXXH
F0H
Read
1
RA
RD
Read Silicon ID
4
555H
AAH
2AAH 55H
555H 90H
ADI
Sector Protect Verify
4
555H
AAH
2AAH 55H
555H 90H
(SA)X 00H
Command
Reset
Addr
Data Addr
Data Addr
Data Addr
Data
Addr Data
DDI
02
01H
PD
Program
4
555H
AAH
2AAH 55H
555H A0H
PA
Chip Erase
6
555H
AAH
2AAH 55H
555H 80H
555H AAH
2AAH 55H
555H 10H
Sector Erase
6
555H
AAH
2AAH 55H
555H 80H
555H AAH
2AAH 55H
SA
Sector Erase Suspend
1
XXXH
B0H
2AAH 55H
555H 80H
555H AAH
2AAH 55H
555H 20H
Sector Erase Resume
1
XXXH
30H
Unlock for sector
6
555H
AAH
30H
protect/unprotect
Note:
1. ADI = Address of Device identifier; A1=0, A0 = 0 for manufacture code,A1=0, A0 = 1 for device code A2-A18=Do
not care.
(Refer to table 3)
DDI = Data of Device identifier : C2H for manufacture code, A4H for device code.
X = X can be VIL or VIH
RA=Address of memory location to be read.
RD=Data to be read at location RA.
2. PA = Address of memory location to be programmed.
PD = Data to be programmed at location PA.
SA = Address to the sector to be erased.
3. The system should generate the following address patterns: 555H or 2AAH to Address A10~A0 .
Address bit A11~A18=X=Don't care for all address commands except for Program Address (PA) and Sector
Address (SA). Write Sequence may be initiated with A11~A18 in either state.
4. For Sector Protect Verify Operation : If read out data is 01H, it means the sector has been protected. If read out
data is 00H, it means the sector is still not being protected.
COMMAND DEFINITIONS
Device operations are selected by writing specific address and data sequences into the command register.
Writing incorrect address and data values or writing them
in the improper sequence will reset the device to the
read mode. Table 1 defines the valid register command
sequences. Note that the Erase Suspend (B0H) and
Erase Resume (30H) commands are valid only while the
Sector Erase operation is in progress. Either of the two
reset command sequences will reset the device (when
applicable).
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MX29F040
TABLE 2. MX29F040 BUS OPERATION
Mode
Pins
CE
OE
WE
A0
A1
A6
A9
Q0 ~ Q7
L
L
H
L
L
X
VID(2)
C2H
L
L
H
H
L
X
VID(2)
A4H
Read
L
L
H
A0
A1
A6
A9
DOUT
Standby
H
X
X
X
X
X
X
HIGH Z
Read Silicon ID
Manufacturer Code(1)
Read Silicon ID
Device Code(1)
Output Disable
L
H
H
X
X
X
X
HIGH Z
Write
L
H
L
A0
A1
A6
A9
DIN(3)
Sector Protect with 12V
L
VID(2)
L
X
X
L
VID(2)
X
L
VID(2)
L
X
X
H
VID(2)
X
L
L
H
X
H
X
VID(2)
Code(5)
L
H
L
X
X
L
H
X
L
H
L
X
X
H
H
X
L
L
H
X
H
X
H
Code(5)
X
X
X
X
X
X
X
HIGH Z
system(6)
Chip Unprotect with 12V
system(6)
Verify Sector Protect
with 12V system
Sector Protect without 12V
system (6)
Chip Unprotect without 12V
system (6)
Verify Sector Protect/Unprotect
without 12V system (7)
Reset
NOTES:
1. Manufacturer and device codes may also be accessed via a command register write sequence. Refer to Table 1.
2. VID is the Silicon-ID-Read high voltage, 11.5V to 12.5V.
3. Refer to Table 1 for valid Data-In during a write operation.
4. X can be VIL or VIH.
5. Code=00H means unprotected.
Code=01H means protected.
A18~A16=Sector address for sector protect.
6. Refer to sector protect/unprotect algorithm and waveform.
Must issue "unlock for sector protect/unprotect" command before "sector protect/unprotect without 12V system" command.
7. The "verify sector protect/unprotect without 12V system" is only following "Sector protect/unprotect without 12V system"
command.
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6
MX29F040
READ/RESET COMMAND
SET-UP AUTOMATIC CHIP/SECTOR ERASE
The read or reset operation is initiated by writing the
read/reset command sequence into the command register. Microprocessor read cycles retrieve array data.
The device remains enabled for reads until the command
register contents are altered.
Chip erase is a six-bus cycle operation. There are two
"unlock" write cycles. These are followed by writing the
"set-up" command 80H. Two more "unlock" write cycles are then followed by the chip erase command 10H.
The Automatic Chip Erase does not require the device
to be entirely pre-programmed prior to executing the Automatic Chip Erase. Upon executing the Automatic Chip
Erase, the device will automatically program and verify
the entire memory for an all-zero data pattern. When the
device is automatically verified to contain an all-zero
pattern, a self-timed chip erase and verify begin. The
erase and verify operations are completed when the data
on Q7 is "1" at which time the device returns to the
Read mode. The system is not required to provide any
control or timing during these operations.
If program-fail or erase-fail happen, the write of F0H will
reset the device to abort the operation. A valid command must then be written to place the device in the
desired state.
SILICON-ID-READ COMMAND
Flash memories are intended for use in applications where
the local CPU alters memory contents. As such, manufacturer and device codes must be accessible while the
device resides in the target system. PROM programmers typically access signature codes by raising A9 to
a high voltage. However, multiplexing high voltage onto
address lines is not generally desired system design
practice.
When using the Automatic Chip Erase algorithm, note
that the erase automatically terminates when adequate
erase margin has been achieved for the memory array
(no erase verification command is required).
If the Erase operation was unsuccessful, the data on
Q5 is "1"(see Table 4), indicating the erase operation
exceed internal timing limit.
The MX29F040 contains a Silicon-ID-Read operation to
supplement traditional PROM programming methodology. The operation is initiated by writing the read silicon
ID command sequence into the command register. Following the command write, a read cycle with
A1=VIL,A0=VIL retrieves the manufacturer code of C2H.
A read cycle with A1=VIL, A0=VIH returns the device
code of A4H for MX29F040.
The automatic erase begins on the rising edge of the
last WE or CE, whichever happens first pulse in the command sequence and terminates when the data on Q7 is
"1" and the data on Q6 stops toggling for two consecutive read cycles, at which time the device returns to the
Read mode.
TABLE 3. EXPANDED SILICON ID CODE
Pins
Manufacture code
Device code for MX29F040
Sector Protection Verification
A0
VIL
VIH
X
A1
VIL
VIL
VIH
Q7
1
1
0
Q6
1
0
0
Q5
0
1
0
Q4
0
0
0
Q3
0
0
0
Q2
0
1
0
Q1
1
0
0
Q0
0
0
1
Code (Hex)
C2H
A4H
01H (Protected)
X
VIH
0
0
0
0
0
0
0
0
00H(Unprotected)
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MX29F040
SECTOR ERASE COMMANDS
The Automatic Sector Erase does not require the device
to be entirely pre-programmed prior to executing the Automatic Set-up Sector Erase command and Automatic
Sector Erase command. Upon executing the Automatic
Sector Erase command, the device will automatically
program and verify the sector(s) memory for an all-zero
data pattern. The system is not required to provide any
control or timing during these operations.
(no erase verification command is required). Sector erase
is a six-bus cycle operation. There are two "unlock"
write cycles. These are followed by writing the set-up
command 80H. Two more "unlock" write cycles are then
followed by the sector erase command 30H. The sector
address is latched on the falling edge of WE or CE, whichever happens later, while the command (data) is latched
on the rising edge of WE or CE, whichever happens first.
Sector addresses selected are loaded into internal register on the sixth falling edge of WE or CE, whichever
happens later. Each successive sector load cycle
started by the falling edge of WE or CE, whichever happens later must begin within 30us from the rising edge
of the preceding WE or CE, whichever happens first.
Otherwise, the loading period ends and internal auto
sector erase cycle starts. (Monitor Q3 to determine if
the sector erase timer window is still open, see section
Q3, Sector Erase Timer.) Any command other than Sector Erase (30H) or Erase Suspend (B0H) during the timeout period resets the device to read mode.
When the sector(s) is automatically verified to contain
an all-zero pattern, a self-timed sector erase and verify
begin. The erase and verify operations are complete
when the data on Q7 is "1" and the data on Q6 stops
toggling for two consecutive read cycles, at which time
the device returns to the Read mode. The system is not
required to provide any control or timing during these
operations.
When using the Automatic Sector Erase algorithm, note
that the erase automatically terminates when adequate
erase margin has been achieved for the memory array
TABLE 4. Write Operation Status
Status
Q7
Q6
Note1
Byte Program in Auto Program Algorithm
Auto Erase Algorithm
Erase Suspend Read
In Progress
Erase Suspend Read
Q3
Q2
Note2
Q7
Toggle
0
N/A
No Toggle
0
Toggle
0
1
Toggle
1
No
0
N/A
Toggle
(Erase Suspended Sector)
Erase Suspended Mode
Q5
Toggle
Data
Data
Data
Data
Data
Q7
Toggle
0
N/A
N/A
(Non-Erase Suspended Sector)
Erase Suspend Program
Byte Program in Auto Program Algorithm
Exceeded
Auto Erase Algorithm
Time Limits Erase Suspend Program
Q7
Toggle
1
N/A
No Toggle
0
Toggle
1
1
Toggle
Q7
Toggle
1
N/A
N/A
Note:
1. Q7 and Q2 require a valid address when reading status information. Refer to the appropriate subsection for further
details.
2. Q5 switches to '1' when an Auto Program or Auto Erase operation has exceeded the maximum timing limits.
See "Q5:Exceeded Timing Limits " for more information.
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MX29F040
tem is not required to provide further controls or timings.
The device will automatically provide an adequate internally generated program pulse and verify margin.
ERASE SUSPEND
This command only has meaning while the state machine is executing Automatic Sector Erase operation,
and therefore will only be responded during Automatic
Sector Erase operation. When the Erase Suspend command is written during a sector erase operation, the device requires a maximum of 100us to suspend the erase
operations. However, When the Erase Suspend command
is written during the sector erase time-out, the device
immediately terminates the time-out period and suspends
the erase operation. After this command has been executed, the command register will initiate erase suspend
mode. The state machine will return to read mode automatically after suspend is ready. At this time, state machine only allows the command register to respond to
the Read Memory Array, Erase Resume and program
commands.
If the program operation was unsuccessful, the data on
Q5 is "1"(see Table 4), indicating the program operation
exceed internal timing limit. The automatic programming
operation is completed when the data read on Q6 stops
toggling for two consecutive read cycles and the data
on Q7 and Q6 are equivalent to data written to these two
bits, at which time the device returns to the Read mode
(no program verify command is required).
DATA POLLING-Q7
The MX29F040 also features Data Polling as a method
to indicate to the host system that the Automatic Program or Erase algorithms are either in progress or completed.
The system can determine the status of the program
operation using the Q7 or Q6 status bits, just as in the
standard program operation. After an erase-suspend program operation is complete, the system can once again
read array data within non-suspended sectors.
While the Automatic Programming algorithm is in operation, an attempt to read the device will produce the
complement data of the data last written to Q7. Upon
completion of the Automatic Program Algorithm an attempt to read the device will produce the true data last
written to Q7. The Data Polling feature is valid after the
rising edge of the fourth WE or CE, whichever happens
first pulse of the four write pulse sequences for automatic program.
ERASE RESUME
This command will cause the command register to clear
the suspend state and return back to Sector Erase mode
but only if an Erase Suspend command was previously
issued. Erase Resume will not have any effect in all
other conditions. Another Erase Suspend command can
be written after the chip has resumed erasing.
While the Automatic Erase algorithm is in operation, Q7
will read "0" until the erase operation is competed. Upon
completion of the erase operation, the data on Q7 will
read "1". The Data Polling feature is valid after the rising
edge of the sixth WE or CE, whichever happens first
pulse of six write pulse sequences for automatic chip/
sector erase.
SET-UP AUTOMATIC PROGRAM COMMANDS
To initiate Automatic Program mode, A three-cycle command sequence is required. There are two "unlock" write
cycles. These are followed by writing the Automatic Program command A0H.
The Data Polling feature is active during Automatic Program/Erase algorithm or sector erase time-out. (see section Q3 Sector Erase Timer)
Once the Automatic Program command is initiated, the
next WE or CE pulse causes a transition to an active
programming operation. Addresses are latched on the
falling edge, and data are internally latched on the
rising edge of the WE or CE, whichever happens first
pulse. The rising edge of WE or CE, whichever happens
first also begins the programming operation. The sys-
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MX29F040
that sector is erase-suspended. Toggle Bit I is valid after the rising edge of the final WE or CE, whichever happens first pulse in the command sequence.
Q6:Toggle BIT I
Toggle Bit I on Q6 indicates whether an Automatic Program or Erase algorithm is in progress or complete, or
whether the device has entered the Erase Suspend mode.
Toggle Bit I may be read at any address, and is valid
after the rising edge of the final WE or CE, whichever
happens first pulse in the command sequence (prior to
the program or erase operation), and during the sector
time-out.
Q2 toggles when the system reads at addresses within
those sectors that have been selected for erasure. (The
system may use either OE or CE to control the read
cycles.) But Q2 cannot distinguish whether the sector
is actively erasing or is erase-suspended. Q6, by comparison, indicates whether the device is actively erasing, or is in Erase Suspend, but cannot distinguish which
sectors are selected for erasure. Thus, both status bits
are required for sectors and mode information. Refer to
Table 4 to compare outputs for Q2 and Q6.
During an Automatic Program or Erase algorithm operation, successive read cycles to any address cause Q6
to toggle. The system may use either OE or CE to control the read cycles. When the operation is complete, Q6
stops toggling.
Reading Toggle Bits Q6/ Q2
After an erase command sequence is written, if all sectors selected for erasing are protected, Q6 toggles and
returns to reading array data. If not all selected sectors
are protected, the Automatic Erase algorithm erases the
unprotected sectors, and ignores the selected sectors
that are protected.
Whenever the system initially begins reading toggle bit
status, it must read Q7-Q0 at least twice in a row to
determine whether a toggle bit is toggling. Typically, the
system would note and store the value of the toggle bit
after the first read. After the second read, the system
would compare the new value of the toggle bit with the
first. If the toggle bit is not toggling, the device has
completed the program or erase operation. The system
can read array data on Q7-Q0 on the following read cycle.
The system can use Q6 and Q2 together to determine
whether a sector is actively erasing or is erase suspended. When the device is actively erasing (that is, the
Automatic Erase algorithm is in progress), Q6 toggling.
When the device enters the Erase Suspend mode, Q6
stops toggling. However, the system must also use Q2
to determine which sectors are erasing or erase-suspended. Alternatively, the system can use Q7.
However, if after the initial two read cycles, the system
determines that the toggle bit is still toggling, the system also should note whether the value of Q5 is high
(see the section on Q5). If it is, the system should then
determine again whether the toggle bit is toggling, since
the toggle bit may have stopped toggling just as Q5 went
high. If the toggle bit is no longer toggling, the device
has successfully completed the program or erase operation. If it is still toggling, the device did not complete
the operation successfully, and the system must write
the reset command to return to reading array data.
If a program address falls within a protected sector, Q6
toggles for approximately 2us after the program command sequence is written, then returns to reading array
data.
Q6 also toggles during the erase-suspend-program mode,
and stops toggling once the Automatic Program algorithm is complete.
The remaining scenario is that system initially determines
that the toggle bit is toggling and Q5 has not gone high.
The system may continue to monitor the toggle bit and
Q5 through successive read cycles, determining the status as described in the previous paragraph. Alternatively, it may choose to perform other system tasks. In
this case, the system must start at the beginning of the
algorithm when it returns to determine the status of the
operation.
Table 4 shows the outputs for Toggle Bit I on Q6.
Q2:Toggle Bit II
The "Toggle Bit II" on Q2, when used with Q6, indicates
whether a particular sector is actively erasing (that is,
the Automatic Erase algorithm is in process), or whether
P/N:PM0538
REV. 2.3, DEC. 10, 2004
10
MX29F040
specific command sequences. The device also incorporates several features to prevent inadvertent write
cycles resulting from VCC power-up and power-down transition or system noise.
Q5
Exceeded Timing Limits
Q5 will indicate if the program or erase time has exceeded the specified limits (internal pulse count). Under
these conditions Q5 will produce a "1". This time-out
condition indicates that the program or erase cycle was
not successfully completed. Data Polling and Toggle Bit
are the only operating functions of the device under this
condition.
Q3
Sector Erase Timer
After the completion of the initial sector erase command
sequence, the sector erase time-out will begin. Q3 will
remain low until the time-out is complete. Data Polling
and Toggle Bit are valid after the initial sector erase command sequence.
If this time-out condition occurs during sector erase operation, it specifies that a particular sector is bad and it
may not be reused. However, other sectors are still functional and may be used for the program or erase operation. The device must be reset to use other sectors.
Write the Reset command sequence to the device, and
then execute program or erase command sequence. This
allows the system to continue to use the other active
sectors in the device.
If Data Polling or the Toggle Bit indicates the device has
been written with a valid erase command, Q3 may be
used to determine if the sector erase timer window is
still open. If Q3 is high ("1") the internally controlled
erase cycle has begun; attempts to write subsequent
commands to the device will be ignored until the erase
operation is completed as indicated by Data Polling or
Toggle Bit. If Q3 is low ("0"), the device will accept
additional sector erase commands. To insure the command has been accepted, the system software should
check the status of Q3 prior to and following each subsequent sector erase command. If Q3 were high on the
second status check, the command may not have been
accepted.
If this time-out condition occurs during the chip erase
operation, it specifies that the entire chip is bad or combination of sectors are bad.
If this time-out condition occurs during the byte programming operation, it specifies that the entire sector containing that byte is bad and this sector may not be reused, (other sectors are still functional and can be reused).
The time-out condition may also appear if a user tries to
program a non blank location without erasing. In this
case the device locks out and never completes the Automatic Algorithm operation. Hence, the system never
reads a valid data on Q7 bit and Q6 never stops toggling. Once the Device has exceeded timing limits, the
Q5 bit will indicate a "1". Please note that this is not a
device failure condition since the device was incorrectly
used.
WRITE PULSE "GLITCH" PROTECTION
Noise pulses of less than 5ns (typical) on CE or WE will
not initiate a write cycle.
LOGICAL INHIBIT
Writing is inhibited by holding any one of OE = VIL, CE
= VIH or WE = VIH. To initiate a write cycle CE and WE
must be a logical zero while OE is a logical one.
DATA PROTECTION
The MX29F040 is designed to offer protection against
accidental erasure or programming caused by spurious
system level signals that may exist during power transition. During power up the device automatically resets
the state machine in the Read mode. In addition, with
its control register architecture, alteration of the memory
contents only occurs after successful completion of
POWER SUPPLY DECOUPLING
In order to reduce power switching effect, each device
should have a 0.1uF ceramic capacitor connected between its VCC and GND.
P/N:PM0538
REV. 2.3, DEC. 10, 2004
11
MX29F040
is noted that all sectors are unprotected after the chip
unprotect algorithm is completed.
SECTOR PROTECTION WITH 12V SYSTEM
The MX29F040 features sector protection. This feature
will disable both program and erase operations for these
sectors protected. To activate this mode, the programming equipment must force VID on address pin A9 and
control pin OE, (suggest VID = 12V) A6 = VIL and CE =
VIL. (see Table 2) Programming of the protection circuitry begins on the falling edge of the WE or CE, whichever happens later pulse and is terminated on the rising
edge. Please refer to sector protect algorithm and waveform.
POWER-UP SEQUENCE
The MX29F040 powers up in the Read only mode. In
addition, the memory contents may only be altered after
successful completion of the predefined command sequences.
SECTOR PROTECTION WITHOUT 12V SYSTEM
To verify programming of the protection circuitry, the programming equipment must force VID on address pin A9
( with CE and OE at VIL and WE at VIH). When A1=1, it
will produce a logical "1" code at device output Q0 for a
protected sector. Otherwise the device will produce 00H
for the unprotected sector. In this mode, the addresses,
except for A1, are don't care. Address locations with A1
= VIL are reserved to read manufacturer and device codes.
(Read Silicon ID)
The MX29F040 also feature a sector protection method
in a system without 12V power supply. The programming
equipment do not need to supply 12 volts to protect sectors. The details are shown in sector protect algorithm
and waveform.
CHIP UNPROTECT WITHOUT 12V SYSTEM
It is also possible to determine if the sector is protected
in the system by writing a Read Silicon ID command.
Performing a read operation with A1=VIH, it will produce
a logical "1" at Q0 for the protected sector.
The MX29F040 also feature a chip unprotection method
in a system without 12V power supply. The programming
equipment do not need to supply 12 volts to unprotect all
sectors. The details are shown in chip unprotect algorithm and waveform.
CHIP UNPROTECT WITH 12V SYSTEM
The MX29F040 also features the chip unprotect mode,
so that all sectors are unprotected after chip unprotect
is completed to incorporate any changes in the code. It
is recommended to protect all sectors before activating
chip unprotect mode.
To activate this mode, the programming equipment must
force VID on control pin OE and address pin A9. The CE
pins must be set at VIL. Pins A6 must be set to VIH.(see
Table 2) Refer to chip unprotect algorithm and waveform for the chip unprotect algorithm. The unprotection
mechanism begins on the falling edge of the WE or CE,
whichever happens later, pulse and is terminated on the
rising edge.
It is also possible to determine if the chip is unprotected
in the system by writing the Read Silicon ID command.
Performing a read operation with A1=VIH, it will produce
00H at data outputs(Q0-Q7) for an unprotected sector. It
P/N:PM0538
REV. 2.3, DEC. 10, 2004
12
MX29F040
CAPACITANCE (TA = 25oC, f = 1.0 MHz)
SYMBOL
PARAMETER
MIN.
TYP
MAX.
UNIT
CONDITIONS
CIN1
Input Capacitance
8
pF
VIN = 0V
CIN2
Control Pin Capacitance
12
pF
VIN = 0V
COUT
Output Capacitance
12
pF
VOUT = 0V
READ OPERATION
±10%)
DC CHARACTERISTICS (TA = 0° C TO 70° C, -40oC to 85oC,VCC = 5V±
SYMBOL
PARAMETER
ILI
MIN.
TYP
MAX.
UNIT
CONDITIONS
Input Leakage Current
1
uA
VIN = GND to VCC
ILO
Output Leakage Current
10
uA
VOUT = GND to VCC
ISB1
Standby VCC current
1
mA
CE = VIH
5
uA
CE = VCC + 0.3V
30
mA
IOUT = 0mA, f=5MHz
50
mA
IOUT = 0mA, f=10MHz
ISB2
1
ICC1
Operating VCC current
ICC2
VIL
Input Low Voltage
-0.3(NOTE 1)
0.8
V
VIH
Input High Voltage
2.0
VCC + 0.3
V
VOL
Output Low Voltage
0.45
V
IOL = 2.1mA
VOH1
Output High Voltage(TTL)
2.4
V
IOH = -2mA
VOH2
Output High Voltage(CMOS)
VCC-0.4
V
IOH = -100uA,VCC=VCC MIN
NOTES:
1. VIL min. = -1.0V for pulse width is equal to or less than 50 ns. 2. VIH max. = VCC + 1.5V for pulse width is equal to or less
than 20 ns.
VIL min. = -2.0V for pulse width is equal to or less than 20 ns.
If VIH is over the specified maximum value, read operation
cannot be guaranteed.
±10%)
AC CHARACTERISTICS (TA = 0oC to 70oC, -40oC to 85oC,VCC = 5V±
29F040-55(note2)29F040-70
Symbol PARAMETER
MIN.
MAX.
29F040-90
29F040-12
MIN. MAX. MIN. MAX. MIN. MAX. Unit
Conditions
tACC
Address to Output Delay
55
70
90
120
ns
CE=OE=VIL
tCE
CE to Output Delay
55
70
90
120
ns
OE=VIL
tOE
OE to Output Delay
30
40
40
50
ns
CE=VIL
tDF
OE High to Output Float (Note1) 0
tOH
Address to Output hold
30
0
0
30
0
0
0
40
0
0
40
ns
CE=VIL
ns
CE=OE=VIL
TEST CONDITIONS:
NOTE:
• Input pulse levels: 0.45V/2.4V
1. tDF is defined as the time at which the output achieves the
• Input rise and fall times is equal to or less than 0ns
open circuit condition and data is no longer driven.
• Output load: 1 TTL gate + 100pF (Including scope and jig)
2. Under condition of VCC=5V±10%,CL=50pF,VIH/VIL=3.0/
• Reference levels for measuring timing: 0.8V, 2.0V
0V,VOH/VOL=1.5/1.5V,IOL=2mA,IOH=-2mA.
P/N:PM0538
REV. 2.3, DEC. 10, 2004
13
MX29F040
NOTICE:
Stresses greater than those listed under ABSOLUTE
MAXIMUM RATINGS may cause permanent damage to
the device. This is a stress rating only and functional
operational sections of this specification is not implied.
Exposure to absolute maximum rating conditions for
extended period may affect reliability.
ABSOLUTE MAXIMUM RATINGS
RATING
VALUE
Ambient Operating Temperature
-40oC to 85oC
Storage Temperature
-65oC to 125oC
Ambient Temperature with Power -55oC to 125oC
Applied
Applied Input Voltage
-0.5V to 7.0V
Applied Output Voltage
-0.5V to 7.0V
VCC to Ground Potential
-0.5V to 7.0V
A9 & OE
-0.5V to 13.5V
NOTICE:
Specifications contained within the following tables are
subject to change.
READ TIMING WAVEFORMS
VIH
ADD Valid
Addresses
VIL
tCE
VIH
CE
VIL
WE
VIH
OE
VIH
tACC
VIL
Outputs
tDF
tOE
VIL
VOH
tOH
HIGH Z
HIGH Z
DATA Valid
VOL
COMMAND PROGRAMMING/DATA PROGRAMMING/ERASE OPERATION
±10%)
DC CHARACTERISTICS (TA = 0oC to 70oC, -40oC to 85oC,VCC = 5V±
SYMBOL
PARAMETER
ICC1 (Read)
Operating VCC Current
MAX.
UNIT
CONDITIONS
30
mA
IOUT=0mA, f=5MHz
ICC2
50
mA
IOUT=0mA, F=10MHz
ICC3 (Program)
50
mA
In Programming
ICC4 (Erase)
50
mA
In Erase
mA
CE=VIH, Erase Suspended
ICCES
MIN.
TYP
VCC Erase Suspend Current
2
NOTES:
1. VIL min. = -0.6V for pulse width is equal to or less than 20ns.
3. ICCES is specified with the device de-selected. If the
2. If VIH is over the specified maximum value, programming
device is read during erase suspend mode, current draw
is the sum of ICCES and ICC1 or ICC2.
operation cannot be guaranteed.
4. All current are in RMS unless otherwise noted.
P/N:PM0538
REV. 2.3, DEC. 10, 2004
14
MX29F040
AC CHARACTERISTICS TA = 0oC to 70oC, -40oC to 85oC,VCC = 5V ± 10%
29F040-55(Note2)
29F040-70
MAX. MIN.
29F040-90
SYMBOL PARAMETER
MIN.
tOES
OE setup time
50
50
50
50
ns
tCWC
Command programming cycle
70
70
90
120
ns
tCEP
WE programming pulse width
45
45
45
50
ns
tCEPH1
WE programming pulse width High
20
20
20
20
ns
tCEPH2
WE programming pulse width High
20
20
20
20
ns
tAS
Address setup time
0
0
0
0
ns
tAH
Address hold time
45
45
45
50
ns
tDS
Data setup time
30
30
45
50
ns
tDH
Data hold time
0
0
0
0
ns
tCESC
CE setup time before command write
0
0
0
0
ns
tDF
Output disable time (Note 1)
tAETC
Total erase time in auto chip erase
4(TYP.)
tAETB
Total erase time in auto sector erase
1.3(TYP.)10.4
tAVT
Total programming time in auto verify
7
tBAL
Sector address load time
100
100
100
100
us
tCH
CE Hold Time
0
0
0
0
ns
tCS
CE setup to WE going low
0
0
0
0
ns
tVLHT
Voltage Transition Time
4
4
4
4
us
tOESP
OE Setup Time to WE Active
4
4
4
4
us
tWPP1
Write pulse width for sector protect
10
10
10
10
us
tWPP2
Write pulse width for sector unprotect
12
12
12
12
ms
30
32
210
MAX. MIN.
MAX.
29F040-12
MIN.
MAX. Unit
30
40
40
32
4(TYP.) 32
4(TYP.) 32
s
1.3(TYP.) 10.4
1.3(TYP.)10.4
1.3(TYP.)10.4
s
7
7
7
us
4(TYP.)
210
210
210
ns
NOTES:
1. tDF defined as the time at which the output achieves the open circuit condition and data is no longer driven.
2. Under conditions of VCC=5V±10%,CL=50pF,VIH/VIL=3.0/0V,VOL/VOH=1.5/1.5, IOL=2mA,IOH=-2mA.
P/N:PM0538
REV. 2.3, DEC. 10, 2004
15
MX29F040
SWITCHING TEST CIRCUITS
DEVICE UNDER
TEST
1.6K ohm
+5V
CL
1.2K ohm
DIODES=IN3064
OR EQUIVALENT
CL=100pF Including jig capacitance
CL= 50pF for 29F040-55
SWITCHING TEST WAVEFORMS
2.4V
2.0V
2.0V
TEST POINTS
0.8V
0.8V
0.45V
INPUT
OUTPUT
AC TESTING: Inputs are driven at 2.4V for a logic "1" and 0.45V for a logic "0".
Input pulse rise and fall times are < 20ns.(5ns for 29F040-55)
Note:VIH/VIL=3.0/0V,VOH/VOL=1.5/1.5V for 29F040-55
COMMAND WRITE TIMING WAVEFORM
VCC
Addresses
5V
VIH
ADD Valid
VIL
tAH
tAS
WE
VIH
VIL
tOES
tCEPH1
tCEP
tCWC
CE
VIH
VIL
tCS
OE
tCH
VIH
VIL
tDS
tDH
VIH
Data
DIN
VIL
P/N:PM0538
REV. 2.3, DEC. 10, 2004
16
MX29F040
AUTOMATIC PROGRAMMING TIMING WAVEFORM
One byte data is programmed. Verify in fast algorithm
and additional programming by external control are not
required because these operations are executed automatically by internal control circuit. Programming
completion can be verified by DATA polling and toggle
bit checking after automatic verification starts. Device
outputs DATA during programming and DATA after programming on Q7.(Q6 is for toggle bit; see toggle bit,
DATA polling, timing waveform)
AUTOMATIC PROGRAMMING TIMING WAVEFORM
Vcc 5V
A11~A18
A0~A10
ADD Valid
2AAH
555H
tAS
WE
tAH
ADD Valid
555H
tCWC
tCEPH1
tCESC
tAVT
CE
tCEP
OE
tDS tDH
Q0,Q1,Q2
Command In
tDF
Command In
Command In
DATA
Data In
DATA polling
Q4(Note 1)
Q7
Command In
Command #AAH
Command In
Command In
Command #55H
Command #A0H
DATA
Data In
DATA
tOE
(Q0~Q7)
Notes:
(1). Q6:Toggle bit, Q5:Timing-limit bit, Q3: Time-out bit
P/N:PM0538
REV. 2.3, DEC. 10, 2004
17
MX29F040
AUTOMATIC PROGRAMMING ALGORITHM FLOWCHART
START
Write Data AAH Address 555H
Write Data 55H Address 2AAH
Write Data A0H Address 555H
Write Program Data/Address
Toggle Bit Checking
Q6 not Toggled
NO
YES
Invalid
Command
NO
Verify Byte Ok
YES
NO
.
Q5 = 1
Auto Program Completed
YES
Reset
Auto Program Exceed
Timing Limit
P/N:PM0538
REV. 2.3, DEC. 10, 2004
18
MX29F040
AUTOMATIC CHIP ERASE TIMING WAVEFORM
All data in chip are erased. External erase verification is
not required because data is erased automatically by
internal control circuit. Erasure completion can be
verified by DATA polling and toggle bit checking after
automatic erase starts. Device outputs 0 during erasure
and 1 after erasure on Q7.(Q6 is for toggle bit; see toggle
bit, DATA polling, timing waveform)
AUTOMATIC CHIP ERASE TIMING WAVEFORM
Vcc 5V
A11~A18
A0~A10
2AAH
555H
555H
555H
tAS
WE
2AAH
555H
tCWC
tAH
tCEPH1
tAETC
CE
tCEP
OE
tDS tDH
Q0,Q1,
Command In
Command In
Command In
Command In
Command In
Command In
Q4(Note 1)
Q7
DATA polling
Command In
Command In
Command In
Command In
Command In
Command In
Command #AAH
Command #55H
Command #80H
Command #AAH
Command #55H
Command #10H
(Q0~Q7)
Notes:
(1). Q6:Toggle bit, Q5:Timing-limit bit, Q3: Time-out bit, Q2: Toggle bit
P/N:PM0538
REV. 2.3, DEC. 10, 2004
19
MX29F040
AUTOMATIC CHIP ERASE ALGORITHM FLOWCHART
START
Write Data AAH Address 555H
Write Data 55H Address 2AAH
Write Data 80H Address 555H
Write Data AAH Address 555H
Write Data 55H Address 2AAH
Write Data 10H Address 555H
Toggle Bit Checking
Q6 not Toggled
NO
YES
Invalid
Command
NO
DATA Polling
Q7 = 1
YES
.
Q5 = 1
Auto Chip Erase Completed
YES
Reset
Auto Chip Erase Exceed
Timing Limit
P/N:PM0538
REV. 2.3, DEC. 10, 2004
20
MX29F040
AUTOMATIC SECTOR ERASE TIMING WAVEFORM
checking after automatic erase starts. Device outputs 0
during erasure and 1 after erasure on Q7.(Q6 is for toggle
bit; see toggle bit, DATA polling, timing waveform)
Sector data indicated by A16 to A18 are erased. External
erase verify is not required because data are erased
automatically by internal control circuit. Erasure completion can be verified by DATA polling and toggle bit
AUTOMATIC SECTOR ERASE TIMING WAVEFORM
Vcc 5V
Sector
Address0
A16-A18
A0~A10
555H
2AAH
555H
555H
Sector
Address1
Sector
Addressn
2AAH
tAS
tCWC
tAH
WE
tCEPH1
tBAL
tAETB
CE
tCEP
OE
tDS tDH
Q0,Q1,
Command
In
Command
In
Command
In
Command
In
Command
In
Command
In
Command
In
Command
In
Q4(Note 1)
Q7
DATA polling
Command
In
Command
In
Command
In
Command
In
Command
In
Command
In
Command #AAH Command #55H Command #80H Command #AAH Command #55H Command #30H
(Q0~Q7)
Command
In
Command #30H
Command
In
Command #30H
Notes:
(1). Q6:Toggle bit, Q5:Timing-limit bit, Q3: Time-out bit, Q2: Toggle bit
P/N:PM0538
REV. 2.3, DEC. 10, 2004
21
MX29F040
AUTOMATIC SECTOR ERASE ALGORITHM FLOWCHART
START
Write Data AAH Address 555H
Write Data 55H Address 2AAH
Write Data 80H Address 555H
Write Data AAH Address 555H
Write Data 55H Address 2AAH
Write Data 30H Sector Address
Toggle Bit Checking
Q6 Toggled ?
NO
Invalid Command
YES
Load Other Sector Addrss If Necessary
(Load Other Sector Address)
NO
Last Sector
to Erase
YES
Time-out Bit
Checking Q3=1 ?
NO
YES
Toggle Bit Checking
Q6 not Toggled
NO
YES
.
Q5 = 1
DATA Polling
Q7 = 1
Reset
Auto Sector Erase Completed
Auto Sector Erase Exceed
Timing Limit
P/N:PM0538
REV. 2.3, DEC. 10, 2004
22
MX29F040
ERASE SUSPEND/ERASE RESUME FLOWCHART
START
Write Data B0H
NO
Toggle Bit checking Q6
not toggled
YES
Read Array or
Program
Reading or
Programming End
NO
YES
Write Data 30H
Continue Erase
Another
Erase Suspend ?
NO
.
YES
P/N:PM0538
REV. 2.3, DEC. 10, 2004
23
MX29F040
TIMING WAVEFORM FOR SECTOR PROTECTION FOR SYSTEM WITH 12V
A1
A6
12V
5V
A9
tVLHT
Verify
12V
5V
OE
tVLHT
tVLHT
tWPP 1
WE
tOESP
CE
Data
01H
F0H
tOE
A18-A16
Sector Address
P/N:PM0538
REV. 2.3, DEC. 10, 2004
24
MX29F040
TIMING WAVEFORM FOR CHIP UNPROTECTION FOR SYSTEM WITH 12V
A1
12V
5V
A9
tVLHT
A6
Verify
12V
5V
OE
tVLHT
tVLHT
tWPP 2
WE
tOESP
CE
Data
00H
F0H
tOE
P/N:PM0538
REV. 2.3, DEC. 10, 2004
25
MX29F040
SECTOR PROTECTION ALGORITHM FOR SYSTEM WITH 12V
START
Set Up Sector Addr
(A18, A17, A16)
PLSCNT=1
OE=VID,A9=VID,CE=VIL
A6=VIL
Activate WE Pulse
Time Out 10us
Set WE=VIH, CE=OE=VIL
A9 should remain VID
PLSCNT=32?
.
Read from Sector
Addr=SA, A1=1
No
No
Data=01H?
Yes
Device Failed
Protect Another
Sector?
Yes
Remove VID from A9
Write Reset Command
Sector Protection
Complete
P/N:PM0538
REV. 2.3, DEC. 10, 2004
26
MX29F040
CHIP UNPROTECTION ALGORITHM FOR SYSTEM WITH 12V
START
Protect All Sectors
PLSCNT=1
Set OE=A9=VID
CE=VIL,A6=1
Activate WE Pulse
Time Out 12ms
Increment
PLSCNT
Set OE=CE=VIL
A9=VID,A1=1
Set Up First Sector Addr
Read Data from Device
No
Data=00H?
Increment
Sector Addr
Yes
No
All sectors have
been verified?
No
PLSCNT=1000?
Yes
Device Failed
Yes
Remove VID from A9
Write Reset Command
Chip Unprotect
Complete
* It is recommended before unprotect whole chip, all sectors should be protected in advance.
P/N:PM0538
REV. 2.3, DEC. 10, 2004
27
MX29F040
TIMING WAVEFORM FOR SECTOR PROTECTION FOR SYSTEM WITHOUT 12V
A1
A6
Toggle bit polling
Verify
5V
OE
tCEP
WE
* See the following Note!
CE
Data
Don't care
(Note 2)
01H
F0H
tOE
A18-A16
Sector Address
Note1: Must issue "unlock for sector protect/unprotect" command before sector protection
for a system without 12V provided.
Note2: Except F0H
P/N:PM0538
REV. 2.3, DEC. 10, 2004
28
MX29F040
TIMING WAVEFORM FOR CHIP UNPROTECTION FOR SYSTEM WITHOUT 12V
A1
A6
Toggle bit polling
Verify
5V
OE
tCEP
WE
* See the following Note!
CE
Data
Don't care
(Note 2)
00H
F0H
tOE
Note1: Must issue "unlock for sector protect/unprotect" command before sector unprotection
for a system without 12V provided.
Note2: Except F0H
P/N:PM0538
REV. 2.3, DEC. 10, 2004
29
MX29F040
SECTOR PROTECTION ALGORITHM FOR SYSTEM WITHOUT 12V
START
PLSCNT=1
Write "unlock for sector protect/unprotect"
Command(Table1)
Set Up Sector Addr
(A18, A17, A16)
OE=VIH,A9=VIH
CE=VIL,A6=VIL
Activate WE Pulse to start
Data don't care
Toggle bit checking
Q6 not Toggled
No
.
Yes
Increment PLSCNT
Set CE=OE=VIL
A9=VIH
Read from Sector
Addr=SA, A1=1
No
PLSCNT=32?
No
Data=01H?
Yes
Device Failed
Protect Another
Sector?
Yes
Write Reset Command
Sector Protection
Complete
P/N:PM0538
REV. 2.3, DEC. 10, 2004
30
MX29F040
CHIP UNPROTECTION ALGORITHM FOR SYSTEM WITHOUT 12V
START
Protect All Sectors
PLSCNT=1
Write "unlock for sector protect/unprotect"
Command (Table 1)
Set OE=A9=VIH
CE=VIL,A6=1
Activate WE Pulse to start
Data do'nt care
No
Toggle bit checking
Q6 not Toggled
Increment
PLSCNT
Yes
Set OE=CE=VIL
A9=VIH,A1=1
Set Up First Sector Addr
Read Data from Device
No
Data=00H?
Increment
Sector Addr
Yes
No
All sectors have
been verified?
No
PLSCNT=1000?
Yes
Device Failed
Yes
Write Reset Command
Chip Unprotect
Complete
* It is recommended before unprotect whole chip, all sectors should be protected in advance.
P/N:PM0538
REV. 2.3, DEC. 10, 2004
31
MX29F040
ID CODE READ TIMING WAVEFORM
VCC
5V
VID
VIH
VIL
ADD
A9
ADD
A0
VIH
A1
VIH
VIL
tACC
tACC
VIL
ADD
A2-A8
A10-A18
CE
VIH
VIL
VIH
VIL
WE
VIH
tCE
VIL
OE
VIH
tOE
VIL
tDF
tOH
tOH
VIH
DATA
Q0-Q7
DATA OUT
DATA OUT
VIL
A4H
C2H
P/N:PM0538
REV. 2.3, DEC. 10, 2004
32
MX29F040
ERASE AND PROGRAMMING PERFORMANCE (1)
LIMITS
TYP.(2)
MAX.(3)
UNITS
1.3
10.4
sec
Chip Erase Time
4
32
sec
Byte Programming Time
7
210
us
Chip Programming Time
4
12
sec
PARAMETER
MIN.
Sector Erase Time
Erase/Program Cycles
Note:
100,000
Cycles
1.Not 100% Tested, Excludes external system level over head.
2.Typical values measured at 25° C,5V.
3.Maximunm values measured at 25° C,4.5V.
LATCH-UP CHARACTERISTICS
MIN.
MAX.
Input Voltage with respect to GND on all pins except I/O pins
-1.0V
13.5V
Input Voltage with respect to GND on all I/O pins
-1.0V
Vcc + 1.0V
-100mA
+100mA
MIN.
UNIT
20
Years
Current
Includes all pins except Vcc. Test conditions: Vcc = 5.0V, one pin at a time.
DATA RETENTION
PARAMETER
Data Retention Time
P/N:PM0538
REV. 2.3, DEC. 10, 2004
33
MX29F040
ORDERING INFORMATION
PLASTIC PACKAGE
PART NO.
Access Time Operating Current Standby Current Temperature
(ns)
MX29F040QC-55
MX29F040QC-70
MX29F040QC-90
MX29F040QC-12
MX29F040TC-55
55
70
90
120
55
MAX.(mA)
MAX.(uA)
30
5
30
5
30
5
30
5
30
5
PACKAGE
Remark
Range
o
0 C~70oC
32 Pin PLCC
o
o
32 Pin PLCC
o
o
32 Pin PLCC
o
o
32 Pin PLCC
o
o
32 Pin TSOP
o
o
o
o
o
o
o
o
32 Pin PDIP
o
o
32 Pin PDIP
o
o
32 Pin PDIP
o
o
32 Pin PDIP
o
o
32 pin PLCC PB free
o
o
32 pin PLCC PB free
o
o
32 pin PLCC PB free
o
o
32 pin TSOP PB free
o
o
32 pin TSOP PB free
o
o
32 pin TSOP PB free
o
o
32 pin TSOP PB free
o
o
32 pin PDIP
PB free
o
o
32 pin PDIP
PB free
o
o
32 pin PDIP
PB free
0 C~70 C
0 C~70 C
0 C~70 C
0 C~70 C
(Normal Type)
MX29F040TC-70
70
30
5
0 C~70 C
32 Pin TSOP
(Normal Type)
MX29F040TC-90
90
30
5
0 C~70 C
32 Pin TSOP
(Normal Type)
MX29F040TC-12
120
30
5
0 C~70 C
32 Pin TSOP
(Normal Type)
MX29F040PC-55
MX29F040PC-70
MX29F040PC-90
MX29F040PC-12
MX29F040QC-55G
MX29F040QC-70G
MX29F040QC-90G
MX29F040TC-55G
MX29F040TC-70G
MX29F040TC-90G
MX29F040TC-12G
MX29F040PC-55G
MX29F040PC-70G
MX29F040PC-90G
MX29F040QI-55
MX29F040QI-70
MX29F040QI-90
55
70
90
120
55
70
90
55
70
90
120
55
70
90
55
70
90
30
5
30
5
30
5
30
5
30
5
30
5
30
5
30
5
30
5
30
5
30
5
30
5
30
5
30
5
30
5
30
5
30
5
P/N:PM0538
0 C~70 C
0 C~70 C
0 C~70 C
0 C~70 C
0 C~70 C
0 C~70 C
0 C~70 C
0 C~70 C
0 C~70 C
0 C~70 C
0 C~70 C
0 C~70 C
0 C~70 C
0 C~70 C
o
o
32 Pin PLCC
o
o
32 Pin PLCC
o
o
32 Pin PLCC
-40 C~85 C
-40 C~85 C
-40 C~85 C
REV. 2.3, DEC. 10, 2004
34
MX29F040
PART NO.
Access Time Operating Current Standby Current Temperature PACKAGE
MX29F040TI-55
(ns)
MAX.(mA)
MAX.(uA)
55
30
5
Remark
Range
-40oC~85oC 32 Pin TSOP
(Normal Type)
MX29F040TI-70
70
30
5
o
o
o
o
o
o
-40 C~85 C 32 Pin TSOP
(Normal Type)
MX29F040TI-90
90
30
5
-40 C~85 C 32 Pin TSOP
(Normal Type)
MX29F040PI-55
55
30
5
-40 C~85 C 32 Pin PDIP
MX29F040PI-70
70
30
5
-40oC~85oC 32 Pin PDIP
MX29F040PI-90
90
30
5
-40oC~85oC 32 Pin PDIP
MX29F040QI-55G
55
30
5
-40oC~85oC 32 Pin PLCC
MX29F040QI-70G
MX29F040QI-90G
MX29F040TI-55G
70
90
55
30
5
30
5
30
5
PB free
o
o
PB free
o
o
PB free
o
o
PB free
o
o
o
o
o
o
PB free
o
o
PB free
o
o
PB free
-40 C~85 C 32 Pin PLCC
-40 C~85 C 32 Pin PLCC
-40 C~85 C 32 Pin TSOP
(Normal Type)
MX29F040TI-70G
70
30
5
-40 C~85 C 32 Pin TSOP
PB free
(Normal Type)
MX29F040TI-90G
90
30
5
-40 C~85 C 32 Pin TSOP
PB free
(Normal Type)
MX29F040PI-55G
MX29F040PI-70G
MX29F040PI-90G
55
70
90
30
5
30
5
30
5
P/N:PM0538
-40 C~85 C 32 Pin PDIP
-40 C~85 C 32 Pin PDIP
-40 C~85 C 32 Pin PDIP
REV. 2.3, DEC. 10, 2004
35
MX29F040
PACKAGE INFORMATION
P/N:PM0538
REV. 2.3, DEC. 10, 2004
36
MX29F040
P/N:PM0538
REV. 2.3, DEC. 10, 2004
37
MX29F040
P/N:PM0538
REV. 2.3, DEC. 10, 2004
38
MX29F040
REVISION HISTORY
Revision
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
2.1
2.2
2.3
Description
To remove "Advanced Information" datasheet marking and
contain information on products in full production.
To improve ICC1:from 40mA @5MHz to 30mA @5MHz
To add the description for 100K endurance cycle
To modify timing of sector address loading period while
operating multi-sector erase from 80us to 30us
To modify tBAL from 80us to 100us
1.Program/erase cycle times:10K cycles-->100K cycles
2.To remove A9 from "timing waveform for sector protection for
system without 12V"
To remove A9 from "timing waveform for chip unprotection for
system without 12V"
3.To add data retention minimum 20 years
Add erase suspend ready max. 100us in ERASE SUSPEND's
section at page 9
To modify "Package Information"
To add "Ambient temperature with power applied"
1. To corrected typing error
1. Changed flow chart of chip unprotection algorithm for system
with and without 12V
To modify Package Information
1. Add 32 pin TSOP PB free package
2. To modify 32-PDIP & 32-PLCC package information
1. Add industrial grade option
1. Added Pb-free option
1. Added industrial-grade PB free option
P/N:PM0538
Page
P1
Date
JUL/01/1999
P1,13,14,33
P1,34
P8
JUL/12/1999
OCT/04/1999
P15
P1,34
P28
DEC/17/1999
P29
P1,34
P9
MAY/29/2000
P35~37
P14
All
P27,31
JUN/12/2001
AUG/08/2001
JUL/01/2002
SEP/04/2002
P35~37
P34
P35,36
P13~15, P34
P34
P35
NOV/21/2002
JAN/17/2003
AUG/20/2004
NOV/08/2004
DEC/10/2004
REV. 2.3, DEC. 10, 2004
39
MX29F040
MACRONIX INTERNATIONAL CO., LTD.
Headquarters:
TEL:+886-3-578-6688
FAX:+886-3-563-2888
Europe Office :
TEL:+32-2-456-8020
FAX:+32-2-456-8021
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TEL:+86-755-834-335-79
FAX:+86-755-834-380-78
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Kawasaki Office :
TEL:+81-44-246-9100
FAX:+81-44-246-9105
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FAX:+81-6-4807-5461
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TEL:+65-6346-5505
FAX:+65-6348-8096
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TEL:+886-2-2509-3300
FAX:+886-2-2509-2200
MACRONIX AMERICA, INC.
TEL:+1-408-262-8887
FAX:+1-408-262-8810
http : //www.macronix.com
MACRONIX INTERNATIONAL CO., LTD. reserves the right to change product and specifications without notice.