參數(shù)資料
型號： UPC1851BCU
廠商： NEC Corp.
英文描述： I2C BUS-COMPATIBLE US MTS PROCESSING LSI
中文描述： I2C總線兼容美國的多邊貿(mào)易體制處理LSI
文件頁數(shù)： 23/60頁
文件大?。?/td> 447K
代理商： UPC1851BCU
23
μ
PC1851B
Data Sheet S13417EJ2V0DS00
3.1 Data Transfer
(1) Start condition
The start condition is created when SDA changes from high to low while SCL is high, as shown in Figure 3-2.
When the
μ
PC1851B receives this information, it captures data sent in synchronization with the clock.
(2) Stop condition
The stop condition is created when SDA changes from low to high while SCL is high, as shown in Figure 3-2.
When the
μ
PC1851B receives this information, it stops receiving or outputting data.
Figure 3-2. Data Transfer Start/Stop Condition
(3) Data transfer
When transferring data, be sure to switch data only when SCL is low, as shown in Figure 3-3. When SCL is high,
the data must not be changed.
Figure 3-3. Data Transfer
Notes
1.
2.
3.
4.
Data hold time: 300 ns MIN.
Data setup time: 250 ns MIN.
Interval when data must not be changed.
Interval when data can be changed.
SDA
SCL
3.5 V
1.5 V
3.5 V
1.5 V
4.0 s
MIN.
4.7 s
MIN.
Start
Stop
SDA
SCL
Note 2
Note 1
Note 3
Note 4
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