参数资料
型号: MC68HC05C8AMFB
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQFP44
封装: QFP-44
文件页数: 112/116页
文件大小: 781K
代理商: MC68HC05C8AMFB
3.3-V Serial Peripheral Interface Timing
MC68HC05C8A MC68HCL05C8A MC68HSC05C8A Data Sheet, Rev. 5.1
Freescale Semiconductor
95
13.11 3.3-V Serial Peripheral Interface Timing
Num
Characteristic(1)
1. VDD = 3.3 Vdc ± 0.3 Vdc; VSS = 0 Vdc, TA = TL to TH. Refer to Figure 13-9 and Figure 13-10 for timing diagrams.
Symbol
Min
Max
Unit
Operating frequency
Master
Slave
fOP(M)
fOP(S)
dc
0.5
1.0
fOP
MHz
1
Cycle time
Master
Slave
tCYC(M)
tCYC(S)
2.0
1.0
tCYC
s
2
Enable lead time
Master
Slave
tLead(M)
tLead(S)
(2)
500
2. Signal production depends on software.
ns
3
Enable lag time
Master
Slave
tLag(M)
tLag(S)
(2)
1.5
ns
s
4
Clock (SCK) high time
Master
Slave
tW(SCKH)M
tW(SCKH)S
720
400
ns
5
Clock (SCK) low time
Master
Slave
tW(SCKL)M
tW(SCKL)S
720
400
ns
6
Data setup time (inputs)
Master
Slave
tSU(M)
tSU(S)
200
ns
7
Data hold time (inputs)
Master
Slave
tH(M)
tH(S)
200
ns
8
Slave access time (time to data active from high-impedance state)
tA
0250
ns
9
Slave disable time (hold time to high-impedance state)
tDIS
—500
ns
10
Data valid
Master (before capture edge)
Slave (after enable edge)(3)
3. Assumes 200 pF load on all SPI pins
tV(M)
tV(S)
0.25
500
tCYC(M)
ns
11
Data hold time (outputs)
Master (after capture edge)
Slave (after enable edge)
tHO(M)
tHO(S)
0.25
0
tCYC(M)
ns
12
Rise time (20% VDD to 70% VDD, CL = 200 pF)
SPI outputs (SCK, MOSI, and MISO)
SPI Inputs (SCK, MOSI, MISO, and SS)
tRM
tRS
200
2.0
ns
s
13
Fall time (70% VDD to 20% VDD, CL = 200 pF)
SPI outputs (SCK, MOSI, and MISO)
SPI inputs (SCK, MOSI, MISO, and SS)
tFM
tFS
200
2.0
ns
s
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