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| 型号： | EM6617SO28A |
| 英文描述： | Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: 0°C to 70°C; Package: 8-EPSOIC T&R |
| 中文描述： | 微控制器 |
| 文件页数： | 46/67页 |
| 文件大小： | 824K |
| 代理商： | EM6617SO28A |
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EM6617
03/02 REV. C/442
Copyright
2002, EM Microelectronic-Marin SA
50
www.emmicroelectronic.com
19.1.3 Port C Metal Options
Pull-up or no pull-up can be selected
for each port C input. The pull-up is
only active in Nch. open drain mode.
Pull-down or no pull-down can be
selected for each port C input.
The total pull value (pull-up or pull-
down) is a series resistance out of the
resistance R1
and
the
switching
transistor. As a switching transistor the
user can choose between a high
impedance (weak) or a low impedance
(strong) switch. Weak , strong or none
must be chosen. The default is strong.
The default resistor R1 value is 100
KOhm. The user may choose a
different value from 150 KOhm down to
0 Ohm. However the value must first
be checked and agreed by EM
Microelectronic Marin SA. Refer also to
chapter
To select an option put an X in
column 1,2 and 4 and reconfirm the
R1 value in column 3.
The default value is : strong pull-
down with R1=100 KOhm
To select an option put an X in
column 1,2 and 4 and reconfirm the
R1 value in column 3.
The default value is : strong pull-up
with R1=100 KOhm
Figure 34. Port C Pull Options
Resistor R1
MPCDweak[n]
Weak Pull-down
MPCDstrong[n]
Strong Pull-down
MPCUweak[n]
Weak Pull-up
MPCUstrong[n]
Strong Pull-up
Pull-up Control
PC[n]
Terminal
100 KOhm
Pull-down Control
OR
Block
No Pull-up
No Pull-down
Input Circuitry
Option
Name
Strong
Pull-
down
Weak
Pull-
down
R1
Value
Typ.100k
NO
Pull-
Down
1
2
3
4
MPCD[3]
PC3 input pull-down
MPCD[2]
PC2 input pull-down
MPCD[1]
PC1 input pull-down
MPCD[0]
PC0 input pull-down
Option
Name
Strong
Pull-up
weak
Pull-up
R1
Value
Typ. 100k
NO
Pull-up
1
2
3
4
MPCU[3]
PC3 input pull-up
MPCU[2]
PC2 input pull-up
MPCU[1]
PC1 input pull-up
MPCU[0]
PC0 input pull-up
相关PDF资料 |
PDF描述 |
|---|---|
| EM6617SO28B | Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: -40°C to 85°C; Package: 8-EPSOIC T&R |
| EM6617TP28A | Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: 0°C to 70°C; Package: 8-EPSOIC T&R |
| EM6617TP28B | Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: -40°C to 85°C; Package: 8-EPSOIC T&R |
| EM6640SO18A | Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: -40°C to 85°C; Package: 8-SOIC |
| EM6640SO18B | Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: -40°C to 85°C; Package: 10-DFN |
相关代理商/技术参数 |
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| EM6617TP28A | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Microcontroller |
| EM6617TP28B | 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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