Part numbering

M27C256B

22/24

6

Part numbering

For a list of available options (Speed, Package, etc) or for further information on any aspect

of this device, please contact the STMicroelectronics Sales Office nearest to you.

Table 15.

Ordering information scheme

Example:

M27C256B

-70

X

C

1

TR

Device Type

M27

Supply Voltage

C = 5V

Device Function

256B = 256 Kbit (32Kb x 8)

Speed

1.

High Speed, see AC Characteristics section for further information.

-60 = 60 ns

-70 = 70 ns

-80 = 80 ns

-90 = 90 ns

-10 = 100 ns

-12 = 120 ns

-15 = 150 ns

-20 = 200 ns

-25 = 250 ns

blank = ± 10%

X = ± 5%

Package

F = FDIP28W

B = PDIP28

C = PLCC32

Temperature Range

1 = 0 to 70 °C

3 = –40 to 125 °C

6 = –40 to 85 °C

Options

TR = Tape & Reel Packing