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| 型号： | EM6640SO18A |
| 英文描述： | Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: -40°C to 85°C; Package: 8-SOIC |
| 中文描述： | 微控制器 |
| 文件页数： | 16/62页 |
| 文件大小： | 620K |
| 代理商： | EM6640SO18A |
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EM6640
03/02 REV. C/446
Copyright
2002, EM Microelectronic-Marin SA
23
www.emmicroelectronic.com
6.6.3 CMOS / Nchannel Open Drain Output
The PortC outputs can be configured as either CMOS or Nchannel Open Drain outputs. In CMOS both logic ‘1’
and ‘0’ are driven out on the terminal. In Nchannel Open Drain only the logic ‘0’ is driven out on the terminal, the
logic ‘1’ value is defined by the pull-up resistor (if existing).
6.6.4 Serial Write Buffer (SWB)
If the serial write buffer is actived by EnSWB bit in RegSWBCntl, PC[0] is the output terminal for the serial clock
and PC[1] is the output terminal for the serial data. For details, see section: 8 Serial (Output) Write Buffer - SWB.
6.7 PortC registers
Table 6.7.1 register RegPCData
Bit
Name
Reset
R/W
Description
3
PCData[3]
-
R/W*
PC[3] input and output
2
PCData[2]
-
R/W*
PC[2] input and output
1
PCData[1]
-
R/W*
PC[1] input and output
0
PCData[0]
-
R/W*
PC[0] input and output
R* : direct read on pin (not the internal register read).
Table 6.7.2 register RegPCCntl
Bit
Name
Reset
R/W
Description
3
PCIOCntl[3]
0
R/W
I/O control for PC[3]
2
PCIOCntl[2]
0
R/W
I/O control for PC[2]
1
PCIOCntl[1]
0
R/W
I/O control for PC[1]
0
PCIOCntl[0]
0
R/W
I/O control for PC[0]
Default "0" is : PortC in input mode
Table 6.7.3 option register OPTNoPdPC
Bit
Name
power on
value
R/W
Description
3
NoPdPC[3]
0
R/W
No pull-down on PC[3]
2
NoPdPC[2]
0
R/W
No pull-down on PC[2]
1
NoPdPC[1]
0
R/W
No pull-down on PC[1]
0
NoPdPC[0]
0
R/W
No pull-down on PC[0]
Default "0" is: Pull-down on
Table 6.7.4 option register OPTNchOpDPC
Bit
Name
power on
value
R/W
Description
3
NchOpDPC[3]
0
R/W
N-Channel Open Drain on PC[3]
2
NchOpDPC[2]
0
R/W
N-Channel Open Drain on PC[2]
1
NchOpDPC[1]
0
R/W
N-Channel Open Drain on PC[1]
0
NchOpDPC[0]
0
R/W
N-Channel Open Drain on PC[0]
Default "0" is: CMOS on PC[3..0]
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相关代理商/技术参数 |
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|---|---|
| EM6640SO18B | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Microcontroller |
| EM6640TP16A | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Microcontroller |
| EM6640TP16B | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Microcontroller |
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