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XR21V1414 Просмотр технического описания (PDF) - Exar Corporation
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Компоненты Описание
производитель
XR21V1414
4-CH FULL-SPEED USB UART
Exar Corporation
XR21V1414 Datasheet PDF : 32 Pages
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XR21V1414
4-CH FULL-SPEED USB UART
F
IGURE
1. XR21V1414 B
LOCK
D
IAGRAM
3.3V VCC
GND
USBD+
USBD-
SDA
SCL
USB Slave
Interface
I
2
C
Interface
Internal
48MHz
Oscillator
Fractional
BRG
128-byte
TX FIFO
384-byte
RX FIFO
Internal
Status and
Control
Registers
GPIOs/
Modem IO
UART Channel A
UART Channel B
(Same as Ch A)
UART Channel C
(Same as Ch A)
UART Channel D
(Same as Ch A)
REV. 1.1.0
TXA
RXA
GPIOA5/RTSA#
GPIOA4/CTSA#
GPIOA3/DTRA#
GPIOA2/DSRA#
GPIOA1/CDA#
GPIOA0/RIA#
TXB
RXB
GPIOB[5:0]/ModemIO
TXC
RXC
GPIOC[5:0]/ModemIO
TXD
RXD
GPIOD[5:0]/ModemIO
2
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