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| 型号： | EM6617DL24A |
| 英文描述： | Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: 0°C to 70°C; Package: 8-SOIC |
| 中文描述： | 微控制器 |
| 文件页数： | 44/67页 |
| 文件大小： | 824K |
| 代理商： | EM6617DL24A |
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EM6617
03/02 REV. C/442
Copyright
2002, EM Microelectronic-Marin SA
49
www.emmicroelectronic.com
19.1.2 Port B Metal Options
Pull-up or no pull-up can be
selected for each port B input. The
pull-up is only active in Nch. open
drain mode.
Pull-down or no pull-down can be
selected for each port B 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
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 33. Port B Pull Options
Resistor R1
MPBPDweak[n]
Weak Pull-down
MPBPDstrong[n]
Strong Pull-down
MPBPUweak[n]
Weak Pull-up
MPBPUstrong[n]
Strong Pull-up
Pull-Up Control
PB[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
MPBPD[3]
PB3 input pull-down
MPBPD[2]
PB2 input pull-down
MPBPD[1]
PB1 input pull-down
MPBPD[0]
PB0 input pull-down
Option
Name
Strong
Pull-up
Weak
Pull-up
R1
value
Typ. 100k
NO
Pull-up
1
2
3
4
MPBPU[3]
PB3 input pull-up
MPBPU[2]
PB2 input pull-up
MPBPU[1]
PB1 input pull-up
MPBPU[0]
PB0 input pull-up
相关PDF资料 |
PDF描述 |
|---|---|
| EM6617DL28A | Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: 0°C to 70°C; Package: 8-SOIC T&R |
| EM6617SO24A | 30V N-Channel PowerTrench MOSFET |
| EM6617SO24B | 30V N-Channel PowerTrench MOSFET |
| EM6617SO28A | Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: 0°C to 70°C; Package: 8-EPSOIC T&R |
| EM6617SO28B | Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: -40°C to 85°C; Package: 8-EPSOIC T&R |
相关代理商/技术参数 |
参数描述 |
|---|---|
| EM6617DL28A | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Microcontroller |
| EM6617SO24A | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Microcontroller |
| EM6617SO24B | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Microcontroller |
| EM6617SO28A | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Microcontroller |
| EM6617SO28B | 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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