M27C256B PDF Datasheet
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Description
This is 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM. M27C256B
256 Kbit (32Kb × 8) UV EPROM and OTP EPROM
Feature summary
- 5V ± 10% supply voltage in Read operation - Access time: 45ns - Low power consumption:
Active Current 30mA at 5MH- Standby Current 100 A - Programming voltage: 12.75V ± 0.25V - Programming time: 100 s, Word - Electronic signature Manufacturer Code: 20h Device Code: 8Dh - ECOPACK® packages available
28 1
FDIP28W (F)
28 1
PDIP28 (B)
PLCC32 (C)
May 2006
Rev 2
1, 24
www.st.com
1
Contents
Contents
M27C256B
1 Summary description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Device operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1 Read mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.2 Standby mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.3 Two-line output control . . . . . . . . . . . . . . . . . . . . ..