AT27C1024
Block Diagram
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)
V
PP
Supply Voltage with
Respect to Ground ............................-2.0V to +14.0V
(1)
*NOTICE:
Stresses beyond those listed under “Absolute Maxi-
mum Ratings” may cause permanent damage to the
device. This is a stress rating only and functional
operation of the device at these or any other condi-
tions beyond those indicated in the operational sec-
tions of this specification is not implied. Exposure to
absolute maximum rating conditions for extended
periods may affect device reliability.
Note:
Minimum voltage is -0.6V DC which may undershoot to
-2.0V for pulses of less than 20 ns. Maximum output pin
voltage is V
CC
+ 0.75V DC which may overshoot to +7.0V
for pulses of less than 20 ns.
Operating Modes
Mode/Pin
Read
Output Disable
Standby
Rapid Program
(2)
PGM Verify
PGM Inhibit
Product
Notes:
Identification
(4)
CE
V
IL
X
V
IH
V
IL
V
IL
V
IH
V
IL
OE
V
IL
V
IH
X
V
IH
V
IL
X
V
IL
PGM
X
(1)
X
X
V
IL
V
IH
X
X
Ai
Ai
X
X
Ai
Ai
X
A9 = V
H(3)
A0 = V
IH
or V
IL
A1 - A15 = V
IL
V
PP
X
X
X
(5)
V
PP
V
PP
V
PP
V
CC
Outputs
D
OUT
High Z
High Z
D
IN
D
OUT
High Z
Identification Code
1. X can be V
IL
or V
IH
.
2. Refer to Programming Characteristics.
3. V
H
= 12.0 ± 0.5V.
4. Two identifier words may be selected. All Ai inputs are held low (V
IL
), except A9 which is set to V
H
and A0 which is toggled
low (V
IL
) to select the Manufacturer’s Identification word and high (V
IH
) to select the Device Code word.
5. Standby V
CC
current (I
SB
) is specified with V
PP
= V
CC
. V
CC
> V
PP
will cause a slight increase in I
SB
.
3
ATMEL [ ATMEL CORPORATION ]
