AT27LV520-90TC View Datasheet(PDF) - Atmel Corporation
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AT27LV520-90TC Datasheet PDF : 10 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 under-
shoot to -2.0V for pulses of less than 20 ns. Max-
imum 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
Read(2)
Output Disable(2)
ALE
VIL
VIL/VIH
OE/VPP
VIL
VIH
A8 - A15
Ai
X(1)
AD0 - AD7
DOUT
High Z/A0 - A7
Standby
VIH
VIH
Ai
Address Latch Enable(2)
VIH
VIH
X
Rapid Program(3)
VIH
VPP
Ai
Product Identification(4)
A9 = VH(5)
VIL
VIL
A8 = VIH or VIL
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.
A0 - A7
A0 - A7
DIN
Identification Code
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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