
E LE CT R ICAL CHAR ACT E R IST ICS
7751 Group User’s Manual
15–3
V
V
V
V
V
V
V
V
V
V
mA
mA
mA
mA
MHz
Power source voltage
Analog power source voltage
Power source voltage
Analog power source voltage
High-level input voltage
High-level input voltage
High-level input voltage
Low-level input voltage
Low-level input voltage
Low-level input voltage
High-level peak output current
High-level average output current
Low-level peak output current
Low-level average output current
Operating clock frequency
Notes 1:
Average output current is the average value of a 100 ms interval.
2:
The sum of I
OL
(peak) for ports P0, P1, P2, P3, and P8 must be 80 mA or less,
the sum of I
OH
(peak) for ports P0, P1, P2, P3, and P8 must be 80 mA or less,
the sum of I
OL
(peak) for ports P4, P5, P6, and P7 must be 80 mA or less, and
the sum of I
OH
(peak) for ports P4, P5, P6, and P7 must be 80 mA or less.
15.2 Recommended operating conditions
Recommended operating conditions
(V
CC
= 5 V
±
10%, Ta = –20 to 85
°
C, unless otherwise noted)
15.2 Recommended operating conditions
V
CC
AV
CC
V
SS
AV
SS
V
IH
V
IH
V
IH
V
IL
V
IL
V
IL
I
OH (peak)
I
OH (avg)
I
OL (peak)
I
OL (avg)
f(X
IN
)
Parameter
Symbol
Limits
Typ.
Min.
4.5
Max.
5.5
5.0
V
CC
0
0
Unit
V
CC
V
CC
V
CC
0.2 V
CC
0.2 V
CC
0.16 V
CC
–10
–5
10
5
40
0.5 V
CC
0
0
0
P0
0
–P0
7
, P3
0
–P3
3
, P4
0
–P4
7
,
P5
0
–P5
7
, P6
0
–P6
7
, P7
0
–P7
7
,
P8
0
–P8
7
, X
IN
,
RESET
, CNV
SS
,
BYTE
P1
0
–P1
7
, P2
0
–P2
7
(in single-chip mode)
P1
0
–P1
7
, P2
0
–P2
7
(in memory expansion mode and
microprocessor mode)
P0
0
–P0
7
, P3
0
–P3
3
, P4
0
–P4
7
,
P5
0
–P5
7
, P6
0
–P6
7
, P7
0
–P7
7
,
P8
0
–P8
7
, X
IN
,
RESET
, CNV
SS
,
BYTE
P1
0
–P1
7
, P2
0
–P2
7
(in single-chip mode)
P1
0
–P1
7
, P2
0
–P2
7
(in memory expansion mode and
microprocessor mode)
P0
0
–P0
7
, P1
0
–P1
7
, P2
0
–P2
7
,
P3
0
–P3
3
, P4
0
–P4
7
, P5
0
–P5
7
,
P6
0
–P6
7
, P7
0
–P7
7
, P8
0
–P8
7
P0
0
–P0
7
, P1
0
–P1
7
, P2
0
–P2
7
,
P3
0
–P3
3
, P4
0
–P4
7
, P5
0
–P5
7
,
P6
0
–P6
7
, P7
0
–P7
7
, P8
0
–P8
7
P0
0
–P0
7
, P1
0
–P1
7
, P2
0
–P2
7
,
P3
0
–P3
3
, P4
0
–P4
7
, P5
0
–P5
7
,
P6
0
–P6
7
, P7
0
–P7
7
, P8
0
–P8
7
P0
0
–P0
7
, P1
0
–P1
7
, P2
0
–P2
7
,
P3
0
–P3
3
, P4
0
–P4
7
, P5
0
–P5
7
,
P6
0
–P6
7
, P7
0
–P7
7
, P8
0
–P8
7
0.8 V
CC
0.8 V
CC