参数资料
型号: MC9S08JS8LCWJ
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: MICROCONTROLLER, PDSO20
封装: ROHS COMPLIANT, MS-013AC, SOIC-20
文件页数: 15/32页
文件大小: 2561K
代理商: MC9S08JS8LCWJ
MC9S08JS16 Series MCU Data Sheet, Rev. 4
Electrical Characteristics
Freescale Semiconductor
22
Table 11. SPI Electrical Characteristic
Num1
1 Refer to Figure 18 through Figure 21.
C
Characteristic2
2 All timing is shown with respect to 20% V
DD and 80% VDD, unless noted; 50 pF load on all SPI pins. All timing assumes slew
rate control disabled and high drive strength enabled for SPI output pins.
Symbol
Min
Typical
Max
Unit
1D
Operating frequency3
Master
Slave
3 The maximum frequency is 8 MHz when input filter on SPI pins is disabled.
fop
fBus/2048DC
fBus/2
fBus/4
Hz
2D
Cycle time
Master
Slave
tSCK
2
4
2048
tcyc
3D
Enable lead time
Master
Slave
tLead
1/2
tSCK
4D
Enable lag time
Master
Slave
tLag
1/2
tSCK
5D
Clock (SPSCK) high time
Master
Slave
tSCKH
1/2 tSCK – 25
1/2 tSCK
ns
6D
Clock (SPSCK) low time
Master
Slave
tSCKL
1/2 tSCK – 25
1/2 tSCK
ns
7D
Data setup time (inputs)
Master
Slave
tSI(M)
tSI(S)
30
ns
8D
Data hold time (inputs)
Master
Slave
tHI(M)
tHI(S)
30
ns
9
D
Access time, slave4
4 Time to data active from high-impedance state.
tA
——
40
ns
10
D
Disable time, slave5
5 Hold time to high-impedance state.
tdis
——
40
ns
11
D
Data setup time (outputs)
Master
Slave
tSO
25
ns
12
D
Data hold time (outputs)
Master
Slave
tHO
–10
ns
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