AT27LV040A-90JU Atmel, AT27LV040A-90JU Datasheet - Page 10

• Manufacturer Part Number: AT27LV040A-90JU
• Description: IC OTP 4MBIT 90NS 32PLCC
• Manufacturer: Atmel

Specifications of AT27LV040A-90JU

• Format - Memory: EPROMs
• Memory Type: OTP EPROM
• Memory Size: 4M (512K x 8)
• Speed: 90ns
• Interface: Parallel
• Voltage - Supply: 3 V ~ 3.6 V, 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-PLCC
• Density: 4Mb
• Organization: 512Kx8
• Interface Type: Parallel
• Bus Type: Parallel
• In System Programmable: External
• Access Time (max): 90ns
• Package Type: PLCC
• Reprogramming Technique: OTP
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (min): 3/4.5V
• Operating Supply Voltage (max): 3.6/5.5V
• Supply Current: 30mA
• Pin Count: 32
• Mounting: Surface Mount
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

18. Rapid Programming Algorithm
A 100
s CE pulse width is used to program. The address is set to the first location. V
is raised
µ
CC
to 6.5V and V
is raised to 13.0V. Each address is first programmed with one 100
s CE pulse
µ
PP
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
s pulses are applied with a veri-
µ
fication 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 are read again and compared
PP
CC
with the original data to determine if the device passes or fails.
AT27LV040A
10
0557D–EPROM–12/07