mc68hc908qb4 Freescale Semiconductor, Inc, mc68hc908qb4 Datasheet - Page 221

• Manufacturer Part Number: mc68hc908qb4
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

18.14 5.0-Volt SPI Characteristics
Freescale Semiconductor
1. Numbers refer to dimensions in
2. All timing is shown with respect to 20% V
3. Time to data active from high-impedance state
4. Hold time to high-impedance state
5. With 100 pF on all SPI pins
Number
Diagram
10
11
1
2
3
4
5
6
7
8
9
(1)
Operating frequency
Cycle time
Enable lead time
Enable lag time
Clock (SPSCK) high time
Clock (SPSCK) low time
Data setup time (inputs)
Data hold time (inputs)
Access time, slave
Disable time, slave
Data valid time, after enable edge
Slave
Data hold time, outputs, after enable edge
Master
Slave
Master
Slave
Master
Slave
Master
Slave
Master
Slave
Master
Slave
CPHA = 0
CPHA = 1
Master
Master
Slave
(5)
Characteristic
Figure 18-11
(3)
(4)
MC68HC908QB8 Data Sheet, Rev. 2
DD
(2)
and 70% V
and
Figure
DD
18-12.
, unless noted; 100 pF load on all SPI pins.
Symbol
t
t
t
t
t
SCKH(M)
SCKH(S)
SCKL(M)
SCKL(S)
t
t
t
t
t
t
f
t
Lead(S)
t
t
f
t
A(CP0)
A(CP1)
OP(M)
cyc(M)
Lag(S)
SU(M)
t
DIS(S)
t
HO(M)
OP(S)
cyc(S)
SU(S)
t
t
HO(S)
H(M)
H(S)
V(M)
V(S)
1/2 t
1/2 t
f
t
t
cyc
cyc
OP
Min
cyc
cyc
dc
30
30
30
30
—
—
—
/128
2
1
1
1
0
0
0
0
–25
–25
–25
–25
5.0-Volt SPI Characteristics
64 t
64 t
f
Max
OP
128
f
40
40
40
50
50
—
—
—
—
—
—
—
—
—
—
—
OP
cyc
cyc
/2
MHz
MHz
Unit
t
t
t
t
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
cyc
cyc
cyc
cyc
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