mc68hc908gr8a Freescale Semiconductor, Inc, mc68hc908gr8a Datasheet - Page 244
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mc68hc908gr8a
Manufacturer Part Number
mc68hc908gr8a
Description
M68hc08 Microcontrollers Microcontroller
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC908GR8A.pdf
(260 pages)
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Electrical Specifications
19.14 3.0 V SPI Characteristics
244
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
Data hold time, outputs, after enable edge
Master
Slave
Master
Slave
Master
Slave
Master
Slave
Master
Slave
Master
Slave
CPHA = 0
CPHA = 1
Master
Slave
Master
Slave
(5)
MC68HC908GR8A • MC68HC908GR4A Data Sheet, Rev. 5
Characteristic
(3)
(4)
Figure 19-16
DD
(2)
and 70% V
and
Figure
DD
19-17.
, unless noted; 100 pF load on all SPI pins.
t
Symbol
t
t
t
t
SCKH(M)
t
SCKH(S)
SCKL(M)
t
SCKL(S)
t
t
f
t
t
f
CYC(M)
t
t
t
CYC(S)
Lead(s)
t
A(CP0)
A(CP1)
DIS(S)
HO(M)
OP(M)
Lag(s)
SU(M)
t
t
HO(S)
OP(S)
SU(S)
t
t
H(M)
V(M)
H(S)
V(S)
1/2 t
1/2 t
t
t
f
OP
cyc
cyc
Min
DC
cyc
cyc
40
40
40
40
—
—
—
2
1
1
1
0
0
0
0
/128
–35
–35
–35
–35
Freescale Semiconductor
64 t
64 t
f
Max
OP
128
f
50
50
50
60
60
—
—
—
—
—
—
—
—
—
—
—
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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