參數(shù)資料
型號(hào): UPC1857
廠商: NEC Corp.
英文描述: SOUND CONTROL IC WITH SURROUND AND I2C BUS
中文描述: 聲控集成電路環(huán)繞和I2C總線
文件頁數(shù): 16/44頁
文件大?。?/td> 343K
代理商: UPC1857
16
μ
PC1857A
3.1.2
Stop condition
Stop condition is made by SDA rising from “Low” to “High” while SCL is “High” as shown in Figure 3-2.
When this stop condition is received, the
μ
PC1857A stops taking in or outputting data.
Figure 3-2. Start/Stop Condition of Data Transfer
Start
MIN.
Stop
SDA
SCL
3.5 V
4.0 s
1.5 V
3.5 V
1.5 V
MIN.
4.7 s
3.1.3
Data transfer
When transferring data, the data must be changed while SCL is “Low” as shown in Figure 3-3. Never change the
data while SCL is “High”.
Figure 3-3. Data Transfer
Note 1
SDA
Note 2
SCL
Notes 1.
Data hold time for I
2.
Data setup time: 250 ns MIN.
2
C device: 300 ns MIN., Data hold time for CPU: 5
μ
s MIN.
Remark
Clock frequency: 0 to 100 kHz
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