M29F400BT, M29F400BB
Table 18. Ordering Information Scheme
Example:
M29F400BB
55
N
1
T
Device Type
M29
Operating Voltage
F = V = 5V ± 10%
CC
Device Function
400B = 4 Mbit (512Kb x8 or 256Kb x16), Boot Block
Array Matrix
T = Top Boot
B = Bottom Boot
Speed
45 = 45 ns
55 = 55 ns
70 = 70 ns
90 = 90 ns
Package
N = TSOP48: 12 x 20 mm
M = SO44
Temperature Range
1 = 0 to 70 °C
3 = –40 to 125 °C
6 = –40 to 85 °C
Option
T = Tape & Reel Packing
Note: The last two characters of the ordering code may be replaced by a letter code for preprogrammed
parts, otherwise devices are shipped from the factory with the memory content bits erased to ‘1’.
For a list of available options (Speed, Package, etc...) or for further information on any aspect of this de-
vice, please contact the ST Sales Office nearest to you.
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STMICROELECTRONICS [ ST ]
