поискавой системы для электроныых деталей |
|
ST16C450CP40 датащи(PDF) 5 Page - Exar Corporation |
|
ST16C450CP40 датащи(HTML) 5 Page - Exar Corporation |
5 / 28 page ST16C450 5 Rev. 4.20 -IOR 21 24 19 I Read data strobe (active low strobe). A logic 0 on this pin transfers the contents of the ST16C450 data bus to the CPU. -IOW 18 20 16 I Write data strobe (active low strobe). A logic 0 on this pin transfers the contents of the CPU data bus to the addressed internal register. INT 30 33 30 O Interrupt Request (active high). Interrupts are enabled in the interrupt enable register (IER), and when an interrupt con- dition exists. Interrupt conditions include: receiver errors, available receiver buffer data, transmit buffer empty, or when a modem status flag is detected. CSOUT 24 27 23 O Chip select out. A high on this pin indicates that the ST16C450 has been enabled by the chip select pin. -BAUDOUT 15 17 12 O Baud Rate Generator Output. This pin provides the 16X clock of the selected data rate from the baud rate generator. The RCLK pin must be connected externally to -BAUDOUT when the receiver is operating at the same data rate. -DDIS 23 26 22 O Drive Disable. This pin goes to a logic 0 when the external CPU is reading data from the ST16C450. This signal can be used to disable external transceivers or other logic func- tions. -OP1 34 38 34 O Output-1 (User Defined) - See bit-2 of modem control register (MCR bit-2). RESET 35 39 35 I Reset. (active high) - A logic 1 on this pin will reset the internal registers and all the outputs. The UART transmitter output and the receiver input will be disabled during reset time. (See ST16C450 External Reset Conditions for initial- ization details.) RCLK 9 10 5 I Receive Clock Input. This pin is used as external 16X clock input to the receiver section. External connection to - Baudout pin is required in order to utilize the internal baud rate generator. SYMBOL DESCRIPTION Symbol Pin Signal Pin Description 40 44 48 type |
Аналогичный номер детали - ST16C450CP40 |
|
Аналогичное описание - ST16C450CP40 |
|
|
ссылки URL |
Конфиденциальность |
ALLDATASHEETRU.COM |
Вашему бизинису помогли Аллдатащит? [ DONATE ] |
Что такое Аллдатащит | реклама | контакт | Конфиденциальность | 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 |