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21.2 Electrical Characteristics of Masked ROM and PROM Versions
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21.2.1 DC Characteristics
Table 21-2 lists the DC characteristics. Table 21-3 lists the permissible output currents.
Table 21-2 DC Characteristics
Conditions: V
= 5.0 V ± 10%, AV
CC
V
= AV
SS
SS
T
= –40°C to +85°C (wide-range specifications)
a
Item
Schmitt
Port A,
trigger input
P8
to P8
0
2
voltages
PB
to PB
0
RES, STBY,
Input high
voltage
NMI, MD
2
MD
0
EXTAL
Port 7
Ports 1, 2, 3,
4, 5, 6, 9,
P8
, P8
,
3
4
PB
to PB
4
RES, STBY,
Input low
voltage
MD
to MD
2
NMI, EXTAL,
ports 1, 2, 3,
4, 5, 6, 7, 9,
P8
, P8
,
3
4
PB
to PB
4
Output high
All output pins V
voltage
(except RESO)
Output low
All output pins V
(except RESO)
voltage
Ports 1, 2,
5, and B
RESO
Note: * If the A/D and D/A converters are not used, do not leave the AV
open. Connect AV
= 5.0 V ± 10%, V
CC
= 0 V*, T
= –20°C to +75°C (regular specifications),
a
Symbol
Min
–
V
1.0
T
+
,
V
—
T
+
–
V
– V
0.4
3
T
T
V
V
– 0.7 —
IH
CC
to
× 0.7 —
V
CC
2.0
2.0
7
V
–0.3
IL
0
–0.3
7
V
– 0.5 —
OH
CC
3.5
—
OL
—
—
and V
to V
, and connect AV
CC
REF
CC
656
= 4.5 V to AV
REF
Typ
Max
Unit Test Conditions
—
—
V
× 0.7 V
—
V
CC
—
—
V
V
+ 0.3 V
CC
V
+ 0.3 V
CC
—
AV
+ 0.3 V
CC
—
V
+ 0.3 V
CC
—
0.5
V
—
0.8
V
—
V
—
—
V
—
0.4
V
—
1.0
V
—
0.4
V
, AV
CC
to V
.
SS
SS
,
CC
I
= –200 µA
OH
I
= –1 mA
OH
I
= 1.6 mA
OL
I
= 10 mA
OL
I
= 2.6 mA
OL
, and V
pins
SS
REF
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