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6.
Rapid programming algorithm
A 50μs CE pulse width is used to program. The address is set to the first location. V CC is raised to 6.5V and OE/V PP is raised
to 13.0V. Each address is first programmed with one 50μs CE pulse without verification. Then a verification reprogramming
loop is executed for each address. In the event a byte fails to pass verification, up to 10 successive 50μs pulses are applied
with a verification after each pulse. If the byte fails to verify after 10 pulses have been applied, the part is considered failed.
After the byte verifies properly, the next address is selected until all have been checked. OE/V PP is then lowered to V IL and
V CC to 5.0V. All bytes are read again and compared with the original data to determine if the device passes or fails.
Figure 6-1.
Rapid programming algorithm
8
Atmel AT27C080
0360M–EPROM–4/11
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