参数资料
型号: TAS3001CPW
厂商: TEXAS INSTRUMENTS INC
元件分类: 音频控制
英文描述: 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO28
封装: GREEN, PLASTIC, TSSOP-28
文件页数: 16/55页
文件大小: 432K
代理商: TAS3001CPW
34
3.2.5
I2C Serial Port Timing
PARAMETER
MIN
MAX
UNIT
f(scl)
SCL clock frequency
0
100
kHz
tBUF
Bus free time between start and stop
4.7
s
tw(low)
Pulse duration, SCL clock low (see Note 1)
4.7
s
tw(high)
Pulse duration, SCL clock high (see Note 2)
4
s
th(STA)
Hold time, repeated start
4
s
tsu(STA)
Setup time, repeated start
4.7
20
s
th(DAT)
Hold time, data
0
s
tsu(DAT)
Setup time, data
250
ns
tr
Rise time for SDA and SCL
1000
ns
tf
Fall time for SDA and SCL
300
ns
tsu(STO)
Setup time for stop condition
4
s
A device must internally provide a hold time of at least 300 ns for the SDA signal to bridge the undefined region of the falling edge of SCL.
NOTES:
1. tw(low) is measured from the end of tf to the beginning of tr.
2. tw(high) is measured from the end of tr to the beginning of tf.
PS
P
Valid
Data Line
Stable
Change of Data
Allowed
SDA
SCL
tBUF
th(STA)
tr
th(DAT)
tsu(DAT)
tf
tsu(STA)
th(STA)
tsu(STO)
Figure 34. I2C Serial Port Timing
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