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MC68HC705P9 Datasheet, PDF (124/160 Pages) Motorola, Inc – HCMOS Microcontroller Unit　
◁
Freescale Semiconductor, Inc.
Serial Input/Output Port (SIOP)
Table 10-1. SIOP Timing (VDD = 5.0 Vdc)(1)
Characteristic
Symbol Min Max
Frequency of Operation
Master
Slave
fSIOP(M)
fSIOP(S)
fOSC/64
dc
fOSC/8
525
Cycle Time
Master
Slave
tSCK(M)
tSCK(S)
4.0
4.0
—
1920
Clock (SCK) Low Time (fOP = 2.1 MHz)(3)(4)
tSCKL
932
—
SDO Data Valid Time
tV
—
200
SDO Hold Time
tHO
0
—
SDI Setup Time
tS
100
—
SDI Hold Time
tH
100
—
1. VDD = 5.0 Vdc ±10%, VSS = 0 Vdc, TA = TL to TH unless otherwise noted.
2. tCYC = 1 ÷ fOP
3. fOSC = crystal frequency; fOP = fOSC ÷ 2 = 2.1 MHz maximum
4. In master mode, the frequency of SCK is fOP ÷ 4.
Unit
MHz
kHz
tCYC(2)
ns
ns
ns
ns
ns
ns
Table 10-2. SIOP Timing (VDD = 3.3 Vdc)(1)
Characteristic
Symbol Min Max
Frequency of Operation
Master
Slave
fSIOP (M)
fSIOP(S)
fOSC/64
dc
fOSC/8
250
Cycle Time
Master
Slave
tSCK(M)
4.0
tSCK(S)
—
Clock (SCK) Low Time (fOP = 1.0 MHz)(3) (4)
tSCKL
1980
SDO Data Valid Time
tV
—
SDO Hold Time
tHO
0
SDI Setup Time
tS
200
SDI Hold Time
tH
200
1. VDD = 3.3 Vdc ±10%, VSS = 0 Vdc, TA = TL to TH unless otherwise noted
2. tCYC = 1 ÷ fOP
3. fOSC = crystal frequency; fOP = fOSC ÷ 2 = 1.0 MHz maximum
4. In master mode, the frequency of SCK is fOP ÷ 4.
4.0
4000
—
400
—
—
—
Unit
MHz
kHz
tCYC(2)
ns
ns
ns
ns
ns
Technical Data
124
Serial Input/Output Port (SIOP)
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MC68HC705P9 — Rev. 4.0
MOTOROLA
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