Datasheet

4
Atmel AT27C040 [DATASHEET]
0189J–EPROM–10/2012
6.2 DC and AC Operating Conditions for Read Operation
6.3 DC and Operating Characteristics for Read Operation
Notes: 1. V
CC
must be applied simultaneously with or before V
PP
, and removed simultaneously with or after V
PP
.
2. V
PP
may be connected directly to V
CC
, except during programming. The supply current would then be the
sum of I
CC
and I
PP
.
6.4 AC Characteristics for Read Operation
Note: 1. See AC waveforms for read operation.
Atmel AT27C040-70 Atmel AT27C040-90
Industrial Operating Temperature (Case) -40°C to 85°C -40°C to 85°C
V
CC
Power Supply 5V 10% 5V  10%
Symbol Parameter Condition Min Max Units
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
PP1
(2)
V
PP
(1)
Read/Standby Current V
PP
= V
CC
10 μA
I
SB
V
CC1
(1)
Standby Current
I
SB1
(CMOS), CE = V
CC
 0.3V 100 μA
I
SB2
(TTL), CE = 2.0 to V
CC
+ 0.5V 1 mA
I
CC
V
CC
Active Current f = 5MHz, I
OUT
= 0mA, CE = V
IL
30 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
= 2.1mA 0.4 V
V
OH
Output High Voltage I
OH
= -400μA 2.4 V
Symbol Parameter Condition
Atmel AT27C040
Units
-70 -90
Min Max Min Max
t
ACC
(1)
Address to Output Delay
CE = OE
= V
IL
70 90 ns
t
CE
(1)
CE to Output Delay OE = V
IL
70 90 ns
t
OE
(1)
OE to Output Delay CE = V
IL
30 35 ns
t
DF
(1)
OE or CE High to Output Float; whichever occurred first. 20 20 ns
t
OH
Output Hold from Address, CE or OE; whichever occurred
first.
0 0 ns