English
Language : 

MC908AP32CFBE Datasheet, PDF (313/324 Pages) Freescale Semiconductor, Inc – The following revision history table summarizes changes contained in this document. For your convenience, the page number designators have been linked to the appropriate location.
◁
3V SPI Characteristics
22.16 3V SPI Characteristics
Table 22-16. SPI Characteristics (3V)
Diagram
Number(1)
Characteristic(2)
Symbol
Min
Max
Operating frequency
Master
Slave
fOP(M)
fOP(S)
fOP/128
dc
fOP/2
fOP
Cycle time
1
Master
Slave
2
Enable lead time
3
Enable lag time
tCYC(M)
2
128
tCYC(S)
1
—
tLead(S)
1
—
tLag(S)
1
—
Clock (SPSCK) high time
4
Master
Slave
tSCKH(M)
tSCKH(S)
tCYC –25
1/2 tCYC –25
64 tCYC
—
Clock (SPSCK) low time
5
Master
Slave
tSCKL(M)
tSCKL(S)
tCYC –25
1/2 tCYC –25
64 tCYC
—
Data setup time (inputs)
6
Master
Slave
tSU(M)
40
—
tSU(S)
40
—
Data hold time (inputs)
7
Master
Slave
Access time, slave(3)
8
CPHA = 0
CPHA = 1
9
Disable time, slave(4)
Data valid time, after enable edge
10
Master
Slave(5)
tH(M)
40
—
tH(S)
40
—
tA(CP0)
0
50
tA(CP1)
0
50
tDIS(S)
—
50
tV(M)
—
60
tV(S)
—
60
Data hold time, outputs, after enable edge
11
Master
tHO(M)
0
—
Slave
tHO(S)
0
—
1. Numbers refer to dimensions in Figure 22-3 and Figure 22-4.
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
MC68HC908AP Family Data Sheet, Rev. 4
Freescale Semiconductor
311
 ▷