MC68331
USER’S MANUAL
ELECTRICAL CHARACTERISTICS
MOTOROLA
A-5
A
Table A-5 16.78 MHz DC Characteristics
(V
DD
and V
DDSYN
= 5.0 Vdc
±
10%, V
SS
= 0 Vdc, T
A
= T
L
to T
H
)
Num
1
2
3
4
Characteristic
Symbol
V
IH
V
IL
V
HYS
I
in
Min
Max
Unit
V
V
V
μ
A
Input High Voltage
Input Low Voltage
Input Hysteresis
1
Input Leakage Current
2
V
in
= V
DD
or V
SS
High Impedance (Off-State) Leakage Current
2
V
in
= V
DD
or V
SS
CMOS Output High Voltage
2, 3
I
OH
= –10.0
μ
A
CMOS Output Low Voltage
2
I
OL
= 10.0
μ
A
Output High Voltage
2, 3
I
OH
= –0.8 mA
Output Low Voltage
2
I
OL
= 1.6 mA
Group 1 I/O Pins, CLKOUT, FREEZE/QUOT, IPIPE
I
OL
= 5.3 mA
Group 2 and Group 4 I/O Pins, CSBOOT, BG/CS
I
OL
= 12 mA
0.7
(
V
DD
)
V
SS
– 0.3
0.5
–2.5
V
DD
+ 0.3
0.2
(
V
DD
)
—
2.5
Input-only pins
5
All input/output and output pins
I
OZ
–2.5
2.5
μ
A
6
Group 1, 2, 4 input/output and all output pins
V
OH
V
DD
– 0.2
—
V
7
Group 1, 2, 4 input/output and all output pins
V
OL
—
0.2
V
8
Group 1, 2, 4 input/output and all output pins
V
OH
V
DD
– 0.8
—
V
9
Group 3
V
OL
—
—
—
0.4
0.4
0.4
9.1
V
10
11
Three State Control Input High Voltage
Data Bus Mode Select Pull-up Current
5
V
in
= V
IL
V
in
= V
IH
V
DD
Supply Current
6
RUN
4
LPSTOP, 32.768 kHz crystal, VCO Off (STSIM = 0)
LPSTOP (External clock input frequency = maximum f
sys
)
Clock Synthesizer Operating Voltage
V
DDSYN
Supply Current
6
32.768 kHz crystal, VCO on, maximum f
sys
External Clock, maximum f
sys
LPSTOP, 32.768 kHz crystal, VCO off (STSIM = 0)
32.768 kHz crystal, V
DD
powered down
Power Dissipation
8
Input Capacitance
2, 9
V
IHTSC
I
MSP
1.6 (V
DD
)
V
μ
A
DATA[15:0]
DATA[15:0]
—
–15
–120
—
12
I
DD
S
IDD
S
IDD
V
DDSYN
—
—
—
4.5
124
350
5
5.5
mA
μ
A
mA
V
13
14
I
DDSYN
I
DDSYN
S
IDDSYN
I
DDSYN
P
D
C
in
—
—
—
—
—
—
—
1
5
150
100
690
10
20
mA
mA
μ
A
μ
A
mW
pF
15
16
All input-only pins
All input/output pins
17
Load Capacitance
2
Group 1 I/O Pins and CLKOUT, FREEZE/QUOT, IPIPE
Group 2 I/O Pins and CSBOOT, BG/CS
Group 3 I/O pins
Group 4 I/O pins
C
L
—
—
—
—
90
100
130
200
pF