Data Sheet
MC68HC908SR12MC68HC08SR12 — Rev. 5.0
400
MC68HC08SR12
Freescale Semiconductor
MC68HC08SR12
V
DD
supply current
Run
(3)
, f
OP
= 4.0 MHz
with ADC on
with ADC off
Wait
(4)
, f
OP
= 4.0 MHz
Stop
(5)
25
°
C (with OSC, TBM, LVI)
25
°
C (with OSC, TBM)
25
°
C
–40
°
C to 85
°
C (with OSC, TBM, LVI)
–40
°
C to 85
°
C (with OSC, TBM)
–40
°
C to 85
°
C
I
DD
—
—
—
—
—
—
—
—
—
7
5
2.5
27
5
1.5
—
—
—
16
12
6
80
12
5
100
15
5
mA
mA
mA
μ
A
μ
A
μ
A
μ
A
μ
A
μ
A
Digital I/O ports Hi-Z leakage current
I
IL
—
—
±
10
μ
A
Input current
I
IN
—
—
±
1
μ
A
Capacitance
Ports (as input or output)
C
OUT
IN
—
—
—
—
12
8
pF
POR re-arm voltage
(6)
V
POR
0
—
100
mV
POR rise-time ramp rate
(7)
R
POR
0.035
—
—
V/ms
Monitor mode entry voltage
V
HI
1.4
×
V
DD
—
2.0
×
V
DD
V
Pullup resistors
(8)
PTD[0:7] configured as KBI[0:7]
RST, IRQ1, IRQ2
R
PU1
R
PU2
24
24
35
35
42
42
k
k
Low-voltage inhibit, trip voltage
(No hysteresis implemented for 3V LVI)
V
LVI3
2.32
2.49
2.68
V
Schmitt trigger input low level trip voltage
RST, IRQ1, IRQ2, KBI[0:7]
V
SCMTL
—
0.8
—
V
Schmitt trigger input high level trip voltage
RST, IRQ1, IRQ2, KBI[0:7]
V
SCMTH
—
1.2
—
V
Notes
:
1. V
DD
= 2.7 to 3.3 Vdc, V
SS
= 0 Vdc, T
A
= T
L
H
, unless otherwise noted.
2. Typical values reflect average measurements at midpoint of voltage range, 25
°
C only.
3. Run (operating) I
DD
measured using external square wave clock source. All inputs 0.2 V from rail. No dc loads. Less than
100 pF on all outputs. C
L
= 20 pF on OSC2. All ports configured as inputs. OSC2 capacitance linearly affects run I
DD
.
Measured with all modules enabled.
4. Wait I
DD
measured using external square wave clock source. All inputs 0.2 V from rail. No dc loads. Less than 100 pF on
all outputs. C
L
= 20 pF on OSC2. All ports configured as inputs. OSC2 capacitance linearly affects wait I
DD
.
5. STOP I
DD
measured with OSC1 grounded, no port pins sourcing current.
6. Maximum is highest voltage that POR is guaranteed.
7. If minimum V
DD
is not reached before the internal POR reset is released,
RST
must be driven low externally until minimum
V
DD
is reached.
8. R
PU1
and
R
PU2
are measured at
V
DD
= 5.0V.
Table A-3. 3V DC Electrical Characteristics
Characteristic
(1)
Symbol
Min
Typ
(2)
Max
Unit