mc68hc08qa24 Freescale Semiconductor, Inc, mc68hc08qa24 Datasheet - Page 391

• Manufacturer Part Number: mc68hc08qa24
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

23.8 5.0 Vdc ± 10% Serial Peripheral Interface (SPI) Timing
MC68HC08QA24
Freescale Semiconductor
Num
1. Item numbers refer to dimensions in
2. All timing is shown with respect to 30% V
3. f
4. Time to data active from high-impedance state
5. Hold time to high-impedance state
10
11
(1)
1
2
3
4
5
6
7
8
9
Bus
= the currently active bus frequency for the microcontroller.
Operating frequency
Cycle tme
Enable lead time
Enable lag time
Clock (SCK) high time
Clock (SCK) low time
Data setup time, inputs
Data hold time, inputs
Access time, slave
Slave disable time, hold time to high-impedance
Data valid time after enable edge
Data hold time, outputs, after enable edge
Master
Slave
Master
Slave
Master
Slave
Master
Slave
Master
Slave
Master
Slave
CPHA = 0
CPHA = 1
State
Master
Slave
Master
Slave
(5)
Characteristic
(4)
(3)
Figure 23-1
DD
(2)
and 70% V
Electrical Specifications
and
Figure
DD
,
unless otherwise noted; assumes 100 pF load on all SPI pins.
23-2.
t
Symbol
t
t
t
W
t
W
W
f
t
W
t
t
f
CYC(
BUS(
CYC(
A(CP0)
A(CP1)
t
B
t
t
t
t
(
(
(
(
t
t
HO
SU
t
t
HO
t
SU
L
SCKH
SCKH
SCKL
t
SCKL
H
V
US
H
V
L
ead
DIS
(
ag
(
(
(
(
(
M
M
(
S
S
(
(
M
S
M
S
M
)
)
)
)
M
S
S
)
)
)
)
)
)
)
)
)
)
)
)
M
M
S
S
f
B
US
Min
100
100
/128 dc
15
15
50
50
45
15
—
—
—
2
1
5
0
0
0
0
5
Electrical Specifications
f
B
US
Max
128
/2 f
40
20
25
10
40
—
—
—
—
—
—
—
—
—
—
—
—
—
B
Technical Data
US
Unit
MHz
t
CYC
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
389