- 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： | 30/62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页当前第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
36
www.emmicroelectronic.com
9. EEPROM
The EM6640’s EEPROM contains 32 words of 8 bits each. Addressing is done indirectly using 5 bits (32
addresses) defined in RegEEPAddr and RegEEPCntl registers.
Either in erase/write mode or in read mode, the EEPROM will be functional for all the standard operating
conditions. Refer to EM6640 Electrical specifications, on page 55.
In RegEEPCntl register, one can select EEPROM reading or writing operation by setting respectively to “0“ or “1“
the bit EEPRdWr.
How to read data from EEPROM :
1st instr.
: write EEPROM address (4 low bits) in RegEEPAddr register.
2nd instr.
: write the high address bit and select reading operation in RegEEPCntl register.
3rd instr.
: read EEPROM low data in RegEEPDataL register.
4th instr.
: read EEPROM high data in RegEEPDataH register.
The two last instructions can be executed in the reverse order.
How to write data in EEPROM :
1st instr.
: write EEPROM address (4 low bits) in RegEEPAddr register.
2nd instr.
: write EEPROM low data in RegEEPDataL register.
3rd instr.
: write EEPROM high data in RegEEPDataH register.
4th instr.
: write the high address bit and select writing operation in RegEEPCntl register.
The three first instructions can be executed in any order.
Writing to the RegEEPCntl register automatically starts the EEPROM reading or writing operation according to
the bit EEPRdWr. To guarantee correct functionality when the EEPROM is being used, one should never modify
the EEPROM’s registers.
EEPROM reading operation lasts 10s : then, data are available in RegEEPDataL and RegEEPDataH registers.
The flag EEPRdBusy in RegEEPCntl register stays high until the reading operation is finished.
EEPROM writing operation lasts 20200s : 10000s for erase process, 10000s for effective write process and
200s between these two processes. The flag EEPWrBusy in RegEEPCntl register stays high until the writing
operation is finished. An interrupt request IRQEEP is generated at the end of each writing operation. This interrupt
request can be masked (default, MaskIRQEEP bit). See also the interrupt handling section 10 for further
information.
During reading operation, the device will drawn an additional 60
A of Ivdd current and during erasing/writing
operation an additional 45
A of Ivdd current (typical, @ 3V, 600kHz, 25°C).
N.B. : During a EEPROM writing operation, all the peripherals of the EM6640 can be used but one
should never put the circuit in SLEEP mode or execute a RESET.
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。