參數(shù)資料
型號(hào)： 68HC908RF
廠商： Motorola, Inc.
英文描述： Microcontrollers
中文描述： 微控制器
文件頁(yè)數(shù)： 4/16頁(yè)
文件大?。?/td> 604K
代理商： 68HC908RF
HC908LJ12AD/D
4
Addendum to MC68HC908LJ12 Technical Data
For More Information On This Product,
Go to: www.freescale.com
MOTOROLA
V
DD
supply current
Run
(3)
, f
OP
= 4 MHz
with all modules on
with ADC on
with ADC off
Wait
(4)
, f
OP
= 4 MHz (all modules off)
Stop, f
OP
= 8 kHz
(5)
25
°
C (with OSC, RTC, LCD
(6)
, LVI on)
25
°
C (with OSC, RTC, LCD
(6)
on)
25
°
C (with OSC, RTC on)
25
°
C (all modules off)
I
DD
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
8
6
5
3.5
280
38
15
1
mA
mA
mA
mA
μ
A
μ
A
μ
A
μ
A
Digital I/O ports Hi-Z leakage current
All ports, RST
I
IL
—
—
±
10
μ
A
Input current
IRQ
I
IN
—
—
±
1
μ
A
Capacitance
Ports (as input or output)
C
OUT
C
IN
—
—
—
—
12
8
pF
POR re-arm voltage
(7)
V
POR
0
—
100
mV
POR rise-time ramp rate
(8)
R
POR
0.02
—
—
V/ms
Monitor mode entry voltage (at IRQ pin)
V
HI
1.5
×
V
DD
—
2
×
V
DD
V
Pullup resistors
(9)
PTA0–PTA3, PTD4–PTD7 configured as KBI0–KBI7
RST, IRQ
R
PU1
R
PU2
—
—
25
27
—
—
k
k
1. V
DD
= 2.7 to 3.3 Vdc, V
SS
= 0 Vdc, T
A
= T
L
to T
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
.
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. The 8kHz clock is from a 32kHz clock input at OSC1, for the driving the RTC.
6. LCD driver configured for low current mode.
7. Maximum is highest voltage that POR is guaranteed.
8. 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.
9. R
PU1
and
R
PU2
are measured at
V
DD
= 3V.
Table 3. DC Electrical Characteristics (2.7 to 3.3V) (Continued)
Characteristic
(1)
Symbol
Min
Typ
(2)
Max
Unit
F
Freescale Semiconductor, Inc.
n
.
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