S908AC4MDRE FREESCALE [Freescale Semiconductor, Inc], S908AC4MDRE Datasheet - Page 240
![no-image](/images/no-image-200.jpg)
S908AC4MDRE
Manufacturer Part Number
S908AC4MDRE
Description
M68HC08 Microcontrollers
Manufacturer
FREESCALE [Freescale Semiconductor, Inc]
Datasheet
1.S908AC4MDRE.pdf
(274 pages)
- Current page: 240 of 274
- Download datasheet (4Mb)
Electrical Specifications
19.7 5-V Control Timing
19.8 3.3-V DC Electrical Characteristics
240
Internal operating frequency
Internal clock period (1/f
RST input pulse width low
IRQ interrupt pulse width low (edge-triggered)
IRQ interrupt pulse period
Output high voltage
Maximum combined I
Output low voltage
Maximum combined I
Input high voltage
Input low voltage
1. V
2. Values are based on characterization results, not tested in production.
3. The minimum period is the number of cycles it takes to execute the interrupt service routine plus 1 t
I
I
I
I
I
I
PTA0–PTA5, PTB0–PTB7, PTC3–PTC0, PTD7–PTD0
PTA0–PTA5, PTB0–PTB7, PTC3–PTC0, PTD7–PTD0
Load
Load
Load
Load
Load
Load
noted.
DD
= –0.6 mA, all I/O pins
= –4.0 mA, all I/O pins
= –10.0 mA, PTA0, PTA1, PTA3–PTA5 only
= 0.5 mA, all I/O pins
= 6.0 mA, all I/O pins
= 10.0 mA, PTA0, PTA1, PTA3–PTA5 only
= 4.5 to 5.5 Vdc, V
Characteristic
RST
OH
OL
IRQ
MC68HC908QC16 • MC68HC908QC8 • MC68HC908QC4 Data Sheet, Rev. 5
OP
(all I/O pins)
(all I/O pins)
Characteristic
(2)
(2)
SS
)
= 0 Vdc, T
(1)
A
Figure 19-3. RST and IRQ Timing
(1)
= T
L
(2)
to T
t
H
t
ILIH
RL
; timing shown with respect to 20% V
Symbol
t
ILIL
I
I
V
V
OHT
V
OHL
V
OH
OL
IH
IL
Symbol
(f
0.7 x V
t
t
V
V
V
t
f
BUS
CYC
t
ILIH
ILIL
OP
RL
DD
DD
DD
V
Min
—
—
—
—
—
SS
)
–0.3
–1.0
–0.8
DD
Note
Min
DD
125
100
100
—
Typ
—
—
—
—
—
—
—
—
—
—
(3)
and 70% V
(2)
— Continued on next page
Freescale Semiconductor
0.3 x V
CYC
Max
SS
Max
—
—
—
—
V
0.3
1.0
0.8
8
50
50
—
—
—
, unless otherwise
DD
.
DD
MHz
Unit
t
CYC
Unit
ns
ns
ns
mA
mA
V
V
V
V
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