AT27BV256-70TU Atmel, AT27BV256-70TU Datasheet - Page 10
![IC OTP 256KBIT 70NS 28TSOP](/photos/7/21/72191/313-28-tsop_sml.jpg)
AT27BV256-70TU
Manufacturer Part Number
AT27BV256-70TU
Description
IC OTP 256KBIT 70NS 28TSOP
Manufacturer
Atmel
Datasheet
1.AT27BV256-70TU.pdf
(15 pages)
Specifications of AT27BV256-70TU
Format - Memory
EPROMs
Memory Type
OTP EPROM
Memory Size
256K (32K x 8)
Speed
70ns
Interface
Parallel
Voltage - Supply
2.7 V ~ 3.6 V, 4.5 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Package / Case
28-TSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
18. Rapid Programming Algorithm
A 100 µs CE pulse width is used to program. The address is set to the first location. V
is
CC
raised to 6.5V and V
is raised to 13.0V. Each address is first programmed with one 100 µs
PP
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 100 µs 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. V
is then lowered to 5.0V and V
to 5.0V. All bytes
PP
CC
are read again and compared with the original data to determine if the device passes or fails.
AT27BV256
10
0601E–EPROM–12/07