AT27LV520-90XI View Datasheet(PDF) - Atmel Corporation
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Description
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AT27LV520-90XI Datasheet PDF : 12 Pages
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AT27LV520
Absolute Maximum Ratings*
Temperature under Bias ................................ -55°C to +125°C
Storage Temperature ..................................... -65°C to +150°C
Voltage on Any Pin with
Respect to Ground .........................................-2.0V to +7.0V(1)
Voltage on A9 with
Respect to Ground ......................................-2.0V to +14.0V(1)
VPP Supply Voltage with
Respect to Ground .......................................-2.0V to +14.0V(1)
*NOTICE:
Stresses beyond those listed under “Absolute
Maximum Ratings” may cause permanent dam-
age to the device. This is a stress rating only and
functional operation of the device at these or any
other conditions beyond those indicated in the
operational sections of this specification is not
implied. Exposure to absolute maximum rating
conditions for extended periods may affect device
reliability.
Note: 1. Minimum voltage is -0.6V DC which may undershoot to -2.0V for pulses of less than 20 ns. Maximum output pin voltage is
VCC + 0.75V DC which may overshoot to +7.0V for pulses of less than 20 ns.
Operating Modes
Mode/Pin
ALE
OE/VPP
A8 - A15
AD0 - AD7
Read(2)
VIL
VIL
Ai
DOUT
Output Disable(2)
VIL/VIH
VIH
X(1)
High Z/A0 - A7
Standby
Address Latch Enable(2)
VIH
VIH
Ai
VIH
VIH
X
A0 - A7
A0 - A7
Rapid Program(3)
Product Identification(4)
VIH
VPP
Ai
DIN
A9 = VH(5)
VIL
VIL
A8 = VIH or VIL
Identification Code
A10 - A15 = VIL
Notes:
1. X can be VIL or VIH.
2. Read, output disable, and standby modes require 3.0V ≤ VCC ≤ 3.6V, or 4.5V ≤ VCC ≤ 5.5V.
3. Refer to Programming Characteristics.
4. VH = 12.0 ± 0.5V.
5. Two identifier bytes may be selected. All A8 - A15 inputs are held low (VIL), except A9 which is set to VH and A8 which is tog-
gled low (VIL) to select the Manufacturer’s Identification byte and high (VIH) to select the Device Code byte.
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