 |
поискавой системы для электроныых деталей |
|
|
поискавой системы для электроныых деталей |
|
UPSD3233 датащи(PDF) 91 Page - STMicroelectronics |
|
|
|||||||||||||||||||||||||||||
UPSD3233 датащи(HTML) 91 Page - STMicroelectronics |
|
|
91 / 170 page  91/170 uPSD3234A, uPSD3234BV, uPSD3233B, uPSD3233BV External USB Pull-Up Resistor The USB system specifies a pull-up resistor on the D- pin for low-speed peripherals. The USB Spec 1.1 describes a 1.5k Ω pull-up resistor to a 3.3V supply. An approved alternative method is a 7.5k Ω pull-up to the USB VCC supply. This alterna- tive is defined for low-speed devices with an inte- grated cable. The chip is specified for the 7.5k Ω pull-up. This eliminates the need for an external 3.3V regulator, or for a pin dedicated to providing a 3.3V output from the chip. Figure 46. USB Data Signal Timing and Voltage Levels Figure 47. Receiver Jitter Tolerance AI06631 VCR D- D+ tR tF 10% 90% 90% 10% VOH VOL AI06632 TJR TJR1 TJR2 Consecutive Transitions N*TPERIOD+TJR1 TPERIOD Paired Transitions N*TPERIOD+TJR2 Differential Data Lines |
|
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
