 |
поискавой системы для электроныых деталей |
|
|
поискавой системы для электроныых деталей |
|
LM8322 датащи(PDF) 7 Page - National Semiconductor (TI) |
|
|
|
|||||||||||||||||||||||||||||
LM8322 датащи(HTML) 7 Page - National Semiconductor (TI) |
|
|
7 / 42 page  8.0 Application Example 30013601 FIGURE 1. Typical Application 8.1 FEATURES The application example shown in Figure 1 supports the fol- lowing features: • 8 x 9 standard keys. • 8 special function keys (SF keys) with wake-up capability by forcing a WAKE_INx pin to ground. Pressing a SF key overrides any other key in the same row. • ACCESS.bus (I2C-compatible) interface for communication with the host. • Hardware IRQ interrupt to host to signal keypad, error, and status events. By default, this is an open-drain output, so an external pullup resistor may be required to avoid false assertion. The host can program this output for push-pull mode, in which case the pullup might not be required, if the host can ignore a false assertion before the LM8322 has been programmed. • Two LEDs driven by PWM outputs with programmable ramp-up and ramp-down. PWM_2 (shared with GPIO_15 and CONFIG_2) could be used as an additional PWM driver port to control a third external LED. • ACCESS.bus address is selected by the CONFIG_1 and CONFIG_2 inputs. These pins may also be used as GPIO pins after reset initialization has occurred. If extra GPIO pins are not needed, CONFIG_1 and CONFIG_2 may be tied directly to V CC and GND. • Crystal pins XTAL_IN and XTAL_OUT may be used to connect to an external 32.768 kHz crystal or receive an external 32.768 kHz clock input for running the PWM peripheral. By default, the PWM is clocked by an on-chip clock source. 7 www.national.com |
|
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
