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MC908GR8CDWE Datasheet, PDF (380/408 Pages) Freescale Semiconductor, Inc – M68HC08 Microcontrollers
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Freescale Semiconductor, Inc.
Electrical Specifications
23.14 3.0 V SPI Characteristics
Diagram
Number(1)
Characteristic(2)
Symbol
Min
Max
Operating frequency
Master
Slave
fOP(M)
fOP(S)
fOP/128
DC
fOP/2
fOP
1
2
3
4
5
6
7
8
9
10
11
Notes:
Cycle time
Master
Slave
Enable lead time
Enable lag time
Clock (SPSCK) high time
Master
Slave
Clock (SPSCK) low time
Master
Slave
Data setup time (inputs)
Master
Slave
Data hold time (inputs)
Master
Slave
Access time, slave(3)
CPHA = 0
CPHA = 1
Disable time, slave(4)
Data valid time, after enable edge
Master
Slave(5)
Data hold time, outputs, after enable edge
Master
Slave
tCYC(M)
2
128
tCYC(S)
1
—
tLead(s)
1
—
tLag(s)
1
—
tSCKH(M)
tSCKH(S)
tSCKL(M)
tSCKL(S)
tcyc –35
1/2 tcyc –35
tcyc –35
1/2 tcyc –35
64 tcyc
—
±
64 tcyc
—
tSU(M)
40
—
tSU(S)
40
—
tH(M)
40
—
tH(S)
40
—
tA(CP0)
0
50
tA(CP1)
0
50
tDIS(S)
—
50
tV(M)
—
60
tV(S)
—
60
tHO(M)
0
—
tHO(S)
0
—
1. Numbers refer to dimensions in Figure 23-16 and Figure 23-17.
2. All timing is shown with respect to 20% VDD and 70% VDD, unless noted; 100 pF load on all SPI pins.
3. Time to data active from high-impedance state
4. Hold time to high-impedance state
5. With 100 pF on all SPI pins
Unit
MHz
MHz
tcyc
tcyc
tcyc
tcyc
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Technical Data
380
MC68HC908GR8 — Rev 4.0
Electrical Specifications
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