Rainbow Electronics AT27C040 - Manual (Page 3)

AT27C040
3
Notes: 1. X can be V
IL
or V
IH
.
2. Refer to Programming Characteristics
3. V
H
= 12.0
±
0.5V.
4. Two identifier bytes 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 Identificaton byte and high (V
IH
) to select the Device Code byte.
Operating Modes
Mode/Pin CE OE Ai V
PP
Outputs
Read V
IL
V
IL
Ai X (1) D
OUT
Output Disable X V
IH
X X High Z
Standby V
IH
X X X High Z
Rapid Program (2) V
IL
V
IH
Ai V
PP
D
IN
PGM Verify X V
IL
Ai V
PP
D
OUT
PGM Inhibit V
IH
V
IH
X V
PP
High Z
Product Identification (4) V
IL
V
IL
A9 = V
H
(3)
A0 = V
IH
or V
IL
A1 - A18 = V
IL
X Identification Code
Absolute Maximum Ratings*
Temperature Under Bias ................................ -55°C to +125°C *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.
Storage Temperature ..................................... -65°C to +150°C
Voltage on Any Pin with
Respect to Ground ............................................-2.0V to +7.0V
Voltage on A9 with
Respect to Ground .........................................-2.0V to +14.0V
V
PP
Supply Voltage with
Respect to Ground ..........................................-2.0V to +14.0V