
Electrical Specifications
5.0 Vdc
±
0.5 V Serial Peripheral Interface (SPI) Timing
MC68HC08AZ32A — Rev 1.0
Technical Data
MOTOROLA
Electrical Specifications
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429
24.8 5.0 Vdc
±
0.5 V Serial Peripheral Interface (SPI) Timing
Num
Characteristic
Symbol
Mn
Max
Unit
Operating Frequency (see Note 3)
Master
Slave
f
BUS(
M
)
f
BUS(
S
)
f
BUS
/128
dc
f
BUS
/2
f
BUS
MHz
1
Cycle Time
Master
Slave
t
cyc(
M
)
t
cyc(
S
)
t
Lead
t
Lag
2
1
128
—
t
cyc
2
Enable Lead Time
15
—
ns
3
Enable Lag Time
15
—
ns
4
Clock (SCK) High Time
Master
Slave
t
W(SCKH)M
t
W(SCKH)S
100
50
—
—
ns
5
Clock (SCK) Low Time
Master
Slave
t
W(SCKL)M
t
W(SCKL)S
100
50
—
—
ns
6
Data Setup Time (Inputs)
Master
Slave
t
SU(M)
t
SU(S)
45
5
—
—
ns
7
Data Hold Time (Inputs)
Master
Slave
t
H(M)
t
H(S)
0
15
—
—
ns
8
Access Time, Slave (see Note 4)
CPHA = 0
CPHA = 1
t
A(CP0)
t
A(CP1)
t
DIS
0
0
40
20
ns
9
Slave Disable Time (Hold Time to High-Impedance State)
—
25
ns
10
Enable Edge Lead Time to Data Valid (see Note 6)
Master
Slave
t
EV(M)
t
EV(S)
—
—
10
40
ns
11
Data Hold Time (Outputs, after Enable Edge)
Master
Slave
t
HO(M)
t
HO(S)
0
5
—
—
ns
12
Data Valid
Master (Before Capture Edge)
Data Hold Time (Outputs)
Master (After Capture Edge)
t
V(M)
90
—
ns
13
t
HO(M)
100
—
ns
NOTES:
1.
All timing is shown with respect to 30% V
DD
and 70% V
DD
,
unless otherwise noted; assumes 100 pF load on all SPI
pins.
Item numbers refer to dimensions in
Figure 24-1
and
Figure 24-2
.
f
BUS
= the currently active bus frequency for the microcontroller.
Time to data active from high-impedance state.
With 100 pF on all SPI pins
2.
3.
4.
5.
F
Freescale Semiconductor, Inc.
n
.