參數(shù)資料
型號: MB91F668PMC
廠商: FUJITSU LTD
元件分類: 微控制器/微處理器
英文描述: 32-BIT, FLASH, 33 MHz, RISC MICROCONTROLLER, PQFP48
封裝: 7 X 7 MM, 1.70 MM HEIGHT, 0.50 MM PITCH, PLASTIC, LQFP-48
文件頁數(shù): 91/104頁
文件大?。?/td> 3106K
代理商: MB91F668PMC
MB91665 Series
DS07-16916-2E
87
(14) I2C Timing
Not using USB : (VCC
AVCC 2.7 V to 3.6 V, VSS AVSS 0 V, Ta 40 C to 85 C)
Using USB : (VCC
AVCC 3.0 V to 3.6 V, VSS AVSS 0 V, Ta 40 C to 85 C)
*1 : R and C represent the pull-up resistance and load capacitance of the SCL and SDA lines, respectively. Vp
indicates the power supply voltage of the pull-up resistance and IOL indicates VOL guaranteed current.
*2 : The maximum tHDDAT must satisfy that it doesn't extend at least “L” period (tLOW) of device's SCL signal.
*3 : A high-speed mode I2C bus device can be used on a standard mode I2C bus system as long as the device
satisfies the requirement of “tSUDAT
250 ns”.
*4 : tCYCP is the peripheral clock cycle time. To use I2C, set the peripheral bus clock at 8 MHz or more.
Parameter
Symbol
Pin name
Condi-
tions
Typical mode
High-speed mode*3
Unit
Min
Max
Min
Max
SCL clock frequency
fSCL
SCKn
(SCLn)
CL
50 pF,
R
(Vp/IOL) *1
01000400
kHz
“(Repeated) START
condition” hold time
SDA
SCL
tHDSTA
SOUTn
(SDAn) ,
SCKn
(SCLn)
4.0
0.6
s
SCL clock “L” width
tLOW
SCKn
(SCLn)
4.7
1.3
s
SCL clock “H” width
tHIGH
SCKn
(SCLn)
4.0
0.6
s
“Repeated START
condition” setup time
SCL
SDA
tSUSTA
SCKn
(SCLn)
4.7
0.6
s
Data hold time
SCL
SDA
tHDDAT
SOUTn
(SDAn) ,
SCKn
(SCLn)
0
3.45*2
00.9*3
s
Data setup time
SDA
SCL
tSUDAT
SOUTn
(SDAn) ,
SCKn
(SCLn)
250
100
ns
“STOP condition” setup
time
SCL
SDA
tSUSTO
SOUTn
(SDAn) ,
SCKn
(SCLn)
4.0
0.6
s
Bus free time between
“STOP condition” and
“START condition”
tBUF
4.7
1.3
s
Noise filter
tSP
2 tCYCP *4
2 tCYCP *4
ns
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