Electrical Characteristics
Tables of Data
68HC(9)12DG128 Rev 1.0
MOTOROLA
Electrical Characteristics
359
Ram standby current
I
sb
—
50
μ
A
DC injection current
(3)
(4)
(5)
(6)
(V
NEGCLAMP
=V
SS
–0.3V, V
POSTCLAMP
=V
DDE
+0.3)
Steady state single pin limit
Steady state package limit includes sum of all stressed pins (25
pins max.)
Transient single pin limit
Transient package limit includes sum of all stressed pins (25 pins
max.)
I
ICsss
I
ICssP
I
ICTRs
I
ICTRP
–1.0
–20
–25
–25
1.0
20
25
25
mA
1. Specification is for parts in the -40 to +85
°
C range. Higher temperature ranges will result in increased
current leakage.
2. See
ATD DC Electrical Characteristics
.
3. It is recommended to tie V
DD
if standby mode is not being used.
4. All functional no-supply pins are internally clamped to V
SS
and V
DD
or V
SS
and V
DDX
.
5. Input must be current limited to the value specified. To determine the value of the required current-limiting resistor, calculate
resistance values for positive and negative clamp voltages, then use the larger of the two values.
6. Power supply must maintain regulation within operating V
DD
or V
DDX
range during instantaneous and operating maximum
current conditions. If positive injection current (V
in
>V
DD
or V
in
>V
DDX
) is greater than I
DD
or I
DDX
, injection current may flow
out of V
DD
/V
DDX
and could result in external power supply going out of regulation. Ensure external V
DD
/V
DDX
load will
shunt current greater than maximum injection current. This will be the greatest risk when the MCU is not consuming power.
Examples are: if no system clock is present, or if clock rate is very low, which would reduce overall power consumption.
Table 66 Supply Current
V
DD
=
5.0 Vdc
±
10%, V
SS
=
0 Vdc, T
A
=
T
L
to T
H
, unless otherwise noted
Characteristic
Symbol
8 MHz
Unit
Maximum total supply current
RUN:
Single-chip mode
Expanded mode
I
DD
60
100
mA
mA
WAIT:
(All peripheral functions shut down)
Single-chip mode
Expanded mode
W
IDD
15
20
mA
mA
STOP:
Single-chip mode, no clocks
S
IDD
200
μ
A
Table 65 DC Electrical Characteristics
V
DD
=
5.0 Vdc
±
10%, V
SS
=
0 Vdc, T
A
=
T
L
to T
H
, unless otherwise noted
Characteristic
Symbol
Min
Max
Unit
5-elec