 |
поискавой системы для электроныых деталей |
|
|
поискавой системы для электроныых деталей |
|
33742 датащи(PDF) 32 Page - Freescale Semiconductor, Inc |
|
|
|||||||||||||||||||||||||||||
33742 датащи(HTML) 32 Page - Freescale Semiconductor, Inc |
|
|
32 / 65 page  Analog Integrated Circuit Device Data 32 Freescale Semiconductor 33742 FUNCTIONAL DEVICE OPERATION OPERATIONAL MODES MCU FLASH PROGRAMMING CONFIGURATION To allow for new software to be loaded into a SBC’s MCU NVM or to standalone EEPROM or Flash, the 33742 is capable of having (1) VSUP applied to it to from an external power 5.0 V supply and (2) having the RST and the WDOG outputs pins eternally forced to 0.0 V or 5.0 V without damaging the device. This allows the SBC to be externally powered and off- board signals to be applied to the reset pins. No functions of the 33742 are operating. Figure 18 illustrates a typical configuration for the connection of programming and debugging tools. The VSUP should be left open or forced to a value equal to or above V. The VDD regulator uses an internal pass transistor between VSUP and the VDD output pin. Biasing the VDD output pin with a voltage greater than VDD potential will force current through the body diode of the internal pass transistor to the VSUP pin. The RST pin is periodically pulled LOW for the tRSTDUR time (device in Reset mode), before being pulled to VDD for 350 ms typical (device in Normal Request mode). During the time reset is LOW, the RST pin sinks 5.0 mA maximum (IPDW). Figure 18. Simplified Schematic for Microcontroller Flash Programming 33742 MCU with VDD RST WDOG VSUP (Open or > 5.0 V Programming Bus Note External supply and sources applied to VDD, RST, and WDOG test points on application circuit board. 5.0 V Programming Tool Flash Memory |
|
ссылки URL |
| Вашему бизинису помогли Аллдатащит? [ DONATE ] |
Что такое Аллдатащит | реклама | контакт | Конфиденциальность | Ссылка на техническое описание | обмен ссыками | поиск по производителю All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
Russian ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
