15/20

M29W040B

Table 14. Ordering Information Scheme

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.

Example:

M29W040B

55

N

1

T

Device Type

M29

Operating Voltage

Device Function

040B = 4 Mbit (512Kb x8), Uniform Block

Speed

55 = 55 ns

70 = 70 ns

90 = 90 ns

120 = 120 ns

Package

K = PLCC32

N = TSOP32: 8 x 20 mm

NZ = TSOP32: 8 x 14 mm

Temperature Range

1 = 0 to 70 °C

6 = –40 to 85 °C

Option

Blank = Standard Packing

T = Tape & Reel Packing

E = ECOPACK Package, Standard Packing

F = ECOPACK Package, Tape & Reel Packing