参数资料
型号: TAS3002
厂商: TEXAS INSTRUMENTS INC
元件分类: 消费家电
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP48
封装: QFP-48
文件页数: 46/54页
文件大小: 266K
代理商: TAS3002
86
8.10 I2C Serial Port Timing Characteristics
MIN
MAX
UNIT
f(SCL)
SCL clock frequency
0
100
kHz
t(buf)
Bus free time between start and stop
4.7
s
t(low)
Low period of SCL clock
4.7
s
t(high)
High period of SCL clock
4.0
s
th(sta)
Hold time repeated start
4.0
s
tsu(sta) Setup time repeated start
4.7
20
s
th(dat)
Data hold time (See Note 6)
0
s
tsu(dat) Data setup time
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
4.0
s
C(b)
Capacitive load for each bus line
400
pF
NOTE 6: 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.
SDA
PS
Valid
Change
of Data
Allowed
P
SCL
t(buf)
th(sta)
tr
th(dat)
tf
th(sta)
tsu(dat)
tsu(sta)
tsu(sto)
Data
Line
Stable
NOTE: t(low) is measured from the end of tf to the beginning of tr.
t(high) is measured from the end of tr to the beginning of tf.
Figure 87. I2C Bus Timing
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