參數(shù)資料
型號: CXP921064AGA
英文描述: Microcontroller
中文描述: 微控制器
文件頁數(shù): 27/34頁
文件大?。?/td> 402K
代理商: CXP921064AGA
27
CXP921064A
Due to the total capacitance of the bus.
(8) I
2
C bus (CH0, CH1)
(Topr =
20 to +75
°
C, V
DD
= 2.7 to 3.3V, Vss = 0V reference)
Item
SCK clock frequency
Bus free time between
stop and start conditions
Hold time under (resend)
start condition
Hold time in SCL clock
low state
Hold time in SCL clock
high state
Setup time under (resend)
start condition
Data hold time
Data setup time
SCL, SDA signal output
rise time
SCL, SDA signal output
fall time
Setup time under stop
condition
SCL0
SCL1
SDA0
SDA1
SDA0, SDA1
SCL0, SCL1
SCL0
SCL1
SCL0
SCL1
SDA0, SDA1
SCL0, SCL1
SDA0, SDA1
SCL0, SCL1
SDA0, SDA1
SCL0, SCL1
SDA0, SDA1
SCL0, SCL1
SDA0, SDA1
SCL0, SCL1
SDA0, SDA1
SCL0, SCL1
t
SCL
t
BUF
t
HD;STA
t
Low
t
High
t
SU;STA
t
HD;DAT
t
SU;DAT
t
Rd
t
Rc
t
Fd
t
Fc
t
SU;STO
Symbol
Pins
Min.
Standard mode
High-speed mode
400
0.9
300
300
0
1.3
0.6
1.3
0.6
0.6
0
100
20 +
α
20 +
α
0.6
kHz
μs
μs
μs
μs
μs
μs
ns
ns
ns
μs
Max.
Min.
100
1000
300
0
4.7
4.0
4.7
4.0
4.7
0
250
4.0
Max.
Unit
SDA0
SDA1
SCL0
SCL1
t
BUF
t
SU;DAT
t
HD;STA
t
SCL
t
Fd
t
Rd
t
Rc
t
Fc
t
Low
t
HD;STA
t
HD;DAT
t
High
t
SU;STA
t
SU;STO
Fig.11. I
2
C bus timing
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