- 您现在的位置：买卖IC网 > PDF目录97909 > EM6640SO18B Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: -40°C to 85°C; Package: 10-DFN PDF资料下载
参数资料
| 型号： | EM6640SO18B |
| 英文描述： | Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: -40°C to 85°C; Package: 10-DFN |
| 中文描述： | 微控制器 |
| 文件页数： | 56/62页 |
| 文件大小： | 620K |
| 代理商： | EM6640SO18B |
第1页第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页当前第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
6
www.emmicroelectronic.com
The output drivers are supplied directly from the external supply VDD.
4. Reset
Figure 5 illustrates the reset structure of the EM6640. One can see that there are six possible reset sources:
(1) Internal initial reset from the Power On Reset (POR) circuitry.
(2) External reset by simultaneous high/low inputs to PortA.
(Combinations are defined in the registers OptInpRSel1 and OptInpRSel2
(3) Internal reset from the Digital Watchdog.
(4) Internal reset from the Oscillation Detection Circuit.
(5) Internal reset when SLEEP mode is activated.
(6) Internal reset from Sleep Counter Reset.
All reset sources activate the System Reset and the Reset CPU. The ‘System Reset Delay’ ensures that the
System Reset remains active long enough for all system functions to be reset (active for N SysClk cycles).
The ‘CPU Reset Delay‘ ensures that the Reset CPU remains active until the oscillator is in stable oscillation.
As well as activating the System Reset and the Reset CPU, the POR also resets all Option Registers and the
SLEEP ENABLE latch. System Reset and Reset CPU do not reset Option Registers nor the SLEEP ENABLE
latch.
Figure 5. Reset structure
Digital W atchdog
O scillation
Detection
System
Reset
Reset from PortA Input
com bination
NoInpReset
Sleep
Inhibit
O scillation
detection
Inhibit
Digital
W atchdog
POR
PO R to O ption
Registers & S LEEP
ENAB LE latch
SLE EP
Latch
SLEEP
ENABLE
Latch
DEB O UNCE R
(for reset)
A nalog
Debouncer
PO R
Internal Data Bus
Write Reset
Read Status
Write Activ e
Read Status
CK[10]
CK[1]
ck[10]
S ystem Reset
Delay
Reset
CP U
CPU Reset
Delay
ck[11]
ck[18]
Reset
set
R
Sleep Counter
Reset
EN
Sleep
Inhibit
SCR
相关PDF资料 |
PDF描述 |
|---|---|
| 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 |
| EM73MA89B | 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 |
|---|---|
| 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 |
| EM6640WS11 | 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。