- 您现在的位置：买卖IC网 > PDF目录97909 > EM6640SO18A Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: -40°C to 85°C; Package: 8-SOIC PDF资料下载
参数资料
| 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： | 2/62页 |
| 文件大小： | 620K |
| 代理商： | EM6640SO18A |
第1页当前第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页
EM6640
03/02 REV. C/446
Copyright
2002, EM Microelectronic-Marin SA
10
www.emmicroelectronic.com
4.4 Sleep Counter Reset (SCR)
The Sleep Counter Reset, active only in SLEEP mode, will automatically trigger a reset which cancels Sleep Mode
after a programmable time defined by writing bit RstSlpTSel[2:0] in option register OptSlpCntRst. The
EnSlpCntRst bit in option register OptSlpCntRst set to "1" will enable the SCR as soon as the SLEEP bit in
RegSysCntl1 is written active. In this case, all the sleep considerations (low consumption) are taken into account
(refer to chapter SLEEP Mode, page 5 for more details). When the SCR generates a reset, the CPU reset is
removed after the ‘CPU Reset Delay’.
The typical time constant of SCR is defined in the section EM6640 Electrical specifications, on page 55.
=> The minimum programmable time is 1x the time constant.
=> The maximum programmable time is 128x the time constant.
Figure 9 Sleep Counter Reset representation with SCR timing=2x as an example.
Sy sC lk
S leep
SCR
CPU re se t
S C R tim ing = 2x
CP U Rst De la y
ac tiv e m ode
activ e m ode
S leep m ode
Table 10 register OptSlpCntRst
Bit
Name
Reset
R/W
Description
3
EnSlpCntRst
0
R/W
enable SCR
2
RstSlpTSel[2]
0
R/W
timing selection
1
RstSlpTSel[1]
0
R/W
timing selection
0
RstSlpTSel[0]
0
R/W
timing selection
Table 11 Sleep Counter Reset timing
RstSlpTSel[2]
RstSlpTSel[1]
RstSlpTSel[0]
SCR timing
00
0
1x
00
1
2x
01
0
4x
01
1
8x
1
0
16x
1
0
1
32x
1
0
64x
1
128x
相关PDF资料 |
PDF描述 |
|---|---|
| EM6640SO18B | Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: -40°C to 85°C; Package: 10-DFN |
| EM6640TP16A | Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: -40°C to 85°C; Package: 10-DFN |
| EM6640TP16B | Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: 0°C to 70°C; Package: 8-SOIC |
| EM6821TQ52B | Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: 0°C to 70°C; Package: 8-EPSOIC |
| EM6821TQ52D | Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: -40°C to 85°C; Package: 8-SOIC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| EM6640WP11 | 制造商:EMMICRO 制造商全称:EM Microelectronic - MARIN SA 功能描述:Low Power Microcontroller with EEPROM AND RC Oscillator |
| EM6640WP27 | 制造商:EMMICRO 制造商全称:EM Microelectronic - MARIN SA 功能描述:Low Power Microcontroller with EEPROM AND RC Oscillator |
发布紧急采购，3分钟左右您将得到回复。