AT27C2048-55PU Atmel, AT27C2048-55PU Datasheet - Page 9
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AT27C2048-55PU
Manufacturer Part Number
AT27C2048-55PU
Description
IC OTP 2MBIT 55NS 40DIP
Manufacturer
Atmel
Datasheet
1.AT27C2048-90VI.pdf
(14 pages)
Specifications of AT27C2048-55PU
Format - Memory
EPROMs
Memory Type
OTP EPROM
Memory Size
2M (128K x 16)
Speed
55ns
Interface
Parallel
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Package / Case
40-DIP (0.600", 15.24mm)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
18. Rapid Programming Algorithm
0632F–EPROM–12/07
A 50 µs CE pulse width is used to program. The address is set to the first location. V
to 6.5V and V
without verification. Then a verification/reprogramming loop is executed for each address. In the
event a word fails to pass verification, up to 10 successive 50 µs pulses are applied with a verifi-
cation 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
pared with the original data to determine if the device passes or fails.
PP
is raised to 13.0V. Each address is first programmed with one 50 µs CE pulse
PP
is then lowered to 5.0V and V
CC
to 5.0V. All words are read again and com-
AT27C2048
CC
is raised
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