Datasheet

4
0570H–EPROM–4/11
Atmel AT27C020
Table 5-3. DC and operating characteristics for read operation
Notes: 1. V
CC
must be applied simultaneously or before V
PP
, and removed simultaneously 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
.
Table 5-4. AC characteristics for read operation
Symbol Parameter Condition Min Max Units
I
LI
Input load current V
IN
= 0V to V
CC
(Com., Ind.) ±1.0 µA
I
LO
Output leakage current V
OUT
= 0V to V
CC
(Com., Ind.) ±5.0 µA
I
PP
(2)
V
PP
(1)
read/standby current V
PP
= V
CC
±10 µA
I
SB
V
CC
(1)
standby current
I
SB1
(CMOS), CE = V
CC
 0.3V 100 µA
I
SB2
(TTL), CE = 2.0 to V
CC
+ 0.5V 1.0 mA
I
CC
V
CC
active current f = 5MHz, I
OUT
= 0mA, CE = V
IL
25 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 AT27C020
Units
-55 -90
Min Max Min Max
t
ACC
(3)
Address to output delay
CE = OE
= V
IL
55 90 ns
t
CE
(2)
CE to output delay OE = V
IL
55 90 ns
t
OE
(2)(3)
OE to output delay CE = V
IL
20 35 ns
t
DF
(4)(5)
OE or CE high to output float,
Whichever occurred first
18 20 ns
t
OH
Output hold from address, CE or OE,
Whichever occurred first
70ns