M29F040B120K1T Micron Technology Inc, M29F040B120K1T Datasheet - Page 3

• Manufacturer Part Number: M29F040B120K1T
• Manufacturer: Micron Technology Inc

Specifications of M29F040B120K1T

• Cell Type: NOR
• Density: 4Mb
• Access Time (max): 120ns
• Interface Type: Parallel
• Boot Type: Not Required
• Address Bus: 19b
• Operating Supply Voltage (typ): 5V
• Operating Temp Range: 0C to 70C
• Package Type: PLCC
• Program/erase Volt (typ): 4.5 to 5.5V
• Sync/async: Asynchronous
• Operating Temperature Classification: Commercial
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Word Size: 8b
• Number Of Words: 512K
• Supply Current: 15mA
• Mounting: Surface Mount
• Pin Count: 32
• Lead Free Status / Rohs Status: Not Compliant

SUMMARY DESCRIPTION
The M29F040B is a 4 Mbit (512Kb x8) non-volatile
memory that can be read, erased and repro-
grammed. These operations can be performed us-
ing a single 5V supply. On power-up the memory
defaults to its Read mode where it can be read in
the same way as a ROM or EPROM. The
M29F040B is fully backward compatible with the
M29F040.
The memory is divided into blocks that can be
erased independently so it is possible to preserve
valid data while old data is erased. Each block can
be protected independently to prevent accidental
Program or Erase commands from modifying the
memory. Program and Erase commands are writ-
ten to the Command Interface of the memory. An
on-chip Program/Erase Controller simplifies the
process of programming or erasing the memory
by taking care of all of the special operations that
are required to update the memory contents. The
end of a program or erase operation can be de-
tected and any error conditions identified. The
command set required to control the memory is
consistent with JEDEC standards.
Chip Enable, Output Enable and Write Enable sig-
nals control the bus operation of the memory.
They allow simple connection to most micropro-
cessors, often without additional logic.
The memory is offered in TSOP32 (8 x 20mm),
and PLCC32 packages. It is supplied with all the
bits erased (set to ‘1’).
Table 2. Absolute Maximum Ratings
Note: 1. Except for the rating "Operating Temperature Range", stresses above those listed in the Table "Absolute Maximum Ratings" may
Symbol
2. Minimum Voltage may undershoot to –2V during transition and for less than 20ns during transitions.
V
T
T
V
V
IO
BIAS
T
STG
cause permanent damage to the device. These are stress ratings only and operation of the device at these or any other conditions
above those indicated in the Operating sections of this specification is not implied. Exposure to Absolute Maximum Rating condi-
tions for extended periods may affect device reliability. Refer also to the STMicroelectronics SURE Program and other relevant qual-
ity documents.
CC
ID
A
(2)
Ambient Operating Temperature (Temperature Range Option 1)
Ambient Operating Temperature (Temperature Range Option 6)
Ambient Operating Temperature (Temperature Range Option 3)
Temperature Under Bias
Storage Temperature
Input or Output Voltage
Supply Voltage
Identification Voltage
(1)
Parameter
Table 3. Uniform Block Addresses, M29F040B
In order to meet environmental requirements, ST
offers the M29F040B in ECOPACK
ECOPACK packages are Lead-free. The category
of second Level Interconnect is marked on the
package and on the inner box label, in compliance
with JEDEC Standard JESD97. The maximum rat-
ings related to soldering conditions are also
marked on the inner box label.
ECOPACK is an ST trademark. ECOPACK speci-
fications are available at: www.st.com.
#
7
6
5
4
3
2
1
0
(Kbytes)
Size
64
64
64
64
64
64
64
64
–0.6 to 13.5
–40 to 125
–50 to 125
–65 to 150
–40 to 85
–0.6 to 6
–0.6 to 6
0 to 70
Address Range
70000h-7FFFFh
60000h-6FFFFh
50000h-5FFFFh
40000h-4FFFFh
30000h-3FFFFh
20000h-2FFFFh
10000h-1FFFFh
00000h-0FFFFh
Value
®
packages.
M29F040B
Unit
°C
°C
°C
°C
°C
V
V
V
3/20