Rainbow-electronics AT27C4096 User Manual download pdf (Page 8)

AT27C4096

Rapid Programming Algorithm

A 50 µs CE pulse width is used to program. The address is

set to the first location. V

is raised to 6.5V and V

raised to 13.0V. Each address is first programmed with one

50 µs CE

pulse without verification. Then a verifica-

tion/reprogramming loop is executed for each address. In

the event a word fails to pass verification, up to 10 succes-

sive 50 µs pulses are applied with a verification after each

pulse. If the word fails to verify after 10 pulses have been

applied, the part is considered failed. After the word verifies

properly, the next address is selected until all have been

checked. V

is then lowered to 5.0V and V

to 5.0V. All

words are read again and compared with the original data

to determine if the device passes or fails.

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Rainbow-electronics AT27C4096 User Manual Page 8