Rainbow Electronics AT27C2048 - Manual (Page 4)

AT27C2048
4
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
.
Note: 2, 3, 4, 5. See the AC Waveforms for Read Operation diagram.
DC and Operating Characteristics for Read Operation
Symbol Parameter Condition Min Max Units
I
LI
Input Load Current V
IN
= 0V to V
CC
±
1
µ
A
I
LO
Output Leakage Current V
OUT
= 0V to V
CC
±
5
µ
A
I
PP1
(2) V
PP
(1) Read/Standby Current V
PP
= V
CC
10
µ
A
I
SB
V
CC
(1) Standby Current
I
SB1
(CMOS)
CE = V
CC
± 0.3V
100
µ
A
I
SB2
(TTL)
CE = 2.0 to V
CC
+ 0.5V
1 mA
I
CC
V
CC
Active Current f = 5 MHz, I
OUT
= 0 mA, CE = V
IL
35 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
µ
A 2.4 V
AC Characteristics for Read Operation
Symbol Parameter Condition
AT27C2048
Units
-55 -70 -90 -12 -15
Min Max Min Max Min Max Min Max Min Max
t
ACC
(3)
Address to
Output Delay CE = OE
= V
IL
55 70 90 120 150 ns
t
CE
(2) CE to Output Delay OE = V
IL
55 70 90 120 150 ns
t
OE
(2)(3) OE to Output Delay CE = V
IL
20 30 35 40 50 ns
t
DF
(4)(5)
OE or CE High to Output Float,
whichever occurred first
20 20 20 30 35 ns
t
OH
(4)
Output Hold from Address, CE or OE,
whichever occurred first
7 7 0 0 0 ns