4
0911G–EPROM–8/07
AT27LV520
Notes: 1. X can be V
IL
or V
IH.
2. Read, output disable, and standby modes require 3.0V ≤ V
CC
≤ 3.6V, or 4.5V ≤ V
CC
≤ 5.5V.
3. Refer to Programming Characteristics.
4. V
H
= 12.0 ± 0.5V.
5. Two identifier bytes may be selected. All A8 - A15 inputs are held low (V
IL
), except A9 which is set to V
H
and A8 which is
toggled low (V
IL
) to select the Manufacturer’s Identification byte and high (V
IH
) to select the Device Code byte.
Note: 1. V
CC
standby current will be slightly higher with ALE, Ai, and ADi at TTL levels.
6. Operating Modes
Mode/Pin ALE OE/V
PP
A8 - A15 AD0 - AD7
Read
(2)
V
IL
V
IL
Ai D
OUT
Output Disable
(2)
V
IL
/V
IH
V
IH
X
(1)
High Z/A0 - A7
Standby V
IH
V
IH
Ai A0 - A7
Address Latch Enable
(2)
V
IH
V
IH
XA0 - A7
Rapid Program
(3)
V
IH
V
PP
Ai D
IN
Product Identification
(4)
V
IL
V
IL
A9 = V
H
(5)
A8 = V
IH
or V
IL
A10 - A15 = V
IL
Identification Code
7. DC and AC Operating Conditions for Read Operation
AT27LV520-70 AT27LV520-90
Industrial Operating Temp. (Case) -40°C - +85°C -40°C - +85°C
V
CC
Supply
3.0V to 3.6V 3.0V to 3.6V
5V ± 10% 5V ± 10%
8. DC and Operating Characteristics for Read Operation
Symbol Parameter Condition Min Max Units
V
CC
= 3.0V to 3.6V
I
LI
Input Load Current V
IN
= 0V to V
CC
±1µA
I
LO
Output Leakage Current V
OUT
= 0V to V
CC
±5µA
I
SB
(1)
V
CC
Standby Current ALE = V
CC
± 0.3V; Ai, ADi = GND/V
CC
± 0.3V 20 µA
I
CC
V
CC
Active Current f = 5 MHz, I
OUT
= 0 mA, ALE = V
IL
8mA
V
IL
Input Low Voltage -0.6 0.8 V
V
IH
Input High Voltage 2.0 V
CC
+ 0.5 V
V
OL
Output Low Voltage I
OL
= 2.0 mA 0.4 V
V
OH
Output High Voltage I
OH
= -2.0 mA 2.4 V
V
CC
= 4.5V to 5.5V
I
LI
Input Load Current V
IN
= 0V to V
CC
±1 µA
I
LO
Output Leakage Current V
OUT
= 0V to V
CC
±5 µA
I
SB
(1)
V
CC
Standby Current ALE = V
CC
± 0.3V; Ai, ADi = GND/V
CC
± 0.3V 100 µA
I
CC
V
CC
Active Current f = 5 MHz, I
OUT
= 0 mA, ALE = V
IL
20 mA
V
IL
Input Low Voltage -0.6 0.8 V
V
IH
Input High Voltage 2.0 V
CC
+ 0.5 V
V
OL
Output Low Voltage I
OL
= 2.1 mA 0.4 V
V
OH
Output High Voltage I
OH
= -400 µA 2.4
