Intel MCS48 User Manual page 252

2708 FAMILY
PROGRAMMING
The
programming
specifications are described
in
the
Data Catalog
PROM/ROM
Programming
Instructions Section.
Absolute
Maximum
Ratings*
Temperature Under
Bias
-25°C
to
+85°C
-COMMENT
Storage Temperature
-65
C
to
+125 C
Stressesabove those
listed
under "Absolute
Maximum
V DD
With Respect
to
V
BB
+20V
to
-0.3V
Ratings"
may
cause
permanent damage
to
the device.
V
cc
and
V
ss
With Respect
to
V
BB
+15V
to
-0.3V
This
IS
a
s,ress ra,in9 on,v
and
functional operation
...
.
_
of
the device
at
these or
any
other conditions
above
All
Input
or Output Voltages With Respect
..
. , .
,.
„„„ „-„„„i
r
^,, nn
.
n
,
th
,
r
r- 3
i those indicated
in
the operational sections ot
this
to
V
BB During Read
+15V
to
-0.3V
specification
is
not implied.
Exposure
to absolute
CS/WE
Input
With Respect
to
V
BB
maximum
ratingconditionsfor
extended
periods
may
During
Programming
+20V
to
-0.3V
affect
device
reliability.
Program
Input
With Respect
to
V
BB
+35V
to
-0
3V
Power
Dissipation
1.5W
DC
and
AC
Operating Conditions During
Read
2708 2708-1
2708 L
Temperature Range
0°C
-
70°C
0°C
-
70°C 0°C
-
70°C
Vcc
Power Supply 5V
+
5%
5V
±
5%
5V±
10%
VDD Power Supply 12V
±5%
12V
±
5%
1
2V
±
1
0%
Vbb Power Supply
-5V
±
5% -5V
±
5% -5V
±
1
0%
READ
OPERATION
D.C.
and
Operating
Characteristics
Parameter
2708
.
2708-1 L
imits
2708L Limits
Units
Symbol
Mm.
TVP.'
21
Max.
Min. Tvp.
12
'
Max.
Test Conditions
'LI
AddTess and Chip
Select Input
Sink Current
1
10
1
10
mA
V|
N
= 5.25V or V|
N
= V| L
"LO
Output Leakage Current
1
10
1
10
mA v
OUT
= 5.5V,
CS/WE
=
5V
lDDi3]
VDD
Supply Current
50 65
21 28
mA
Worst Case Supply Currents'
ICCl3)
Vcc Supply Current
6 10 2 4
mA
All
Inputs High;
lBBl3I
Vbb Supply Current
30 45
10
14
mA
CS/WE =
5V;T
A
=
0°C
VlL
Input
Low
Voltage vss
0.65
vss 0.65
V
V|H Input High Voltage 3.0
V
CC
+
1
2.2
V C
C
+
1
V
Output Low
Voltage
0.45 0.4
V
l
0L
-
1.6mA
(2708,
2708-1)
v
OL
l
0L =
2mA
(2708L)
VOH1 Output High Voltage 3.7 3.7
V
Iqh =-100»iA
v
OH2
Output High Voltage 2.4 2.4
V
lOH = -1
mA
Power
Dissipation
800 325
mW
T
A
= 70°C
PD
425
mW
T
A
= 0°C
1.
Vbb
musT
oe applied prior to Vcc and
V
DD-
V BB must
also
De the
last
power supply switched
off
2.
Typical
values are for
T^
= 25°C and nominal supply
voltages.
3.
The
total
power
disiipation
is
not calculated by
summing
the various currents Odd-
'CC- anc
*
'BB*
multiplied by
their
respective
vol-
tages since current paths
exist
between the various
power
supplies and V§S-
The
IqD-
'CC-
and 'BB
currents
should be used
to deter-
mine power supply capacity
only.
4.
Iqq
for the
2708L
is
specified
in
the
programmed
state
and
is
18
mA
maximum
in
the
unprogrammed
state.
2708
L
RANGE OF SUPPLY CURRENTS
VS.
TEMPERATURE
2708
AND
2708-1
RANGE OF SUPPLY CURRENTS
VS.
TEMPERATURE
T A
ro
ACCESS TIME
VS.
TEMPERATURE
1TTL LOAD
1(K
of
7-14