REV. 1.3.0 4-CH FULL-SPEED USB UART TXB 8 O UART Channel B Transmit Data or IR Transmit Data. GPIOB0/RIB#/ RWKB# 15 I/O UART Channe" />
參數(shù)資料
型號(hào)： XR21V1414IM48-F
廠商： Exar Corporation
文件頁(yè)數(shù)： 30/34頁(yè)
文件大?。?/td> 0K
描述： IC UART FIFO USB QUAD 48TQFP
產(chǎn)品培訓(xùn)模塊： UART Product Overview
XR21V141x Full-Speed USB UART Family
特色產(chǎn)品： XR21V141x Full-Speed USB UART
標(biāo)準(zhǔn)包裝： 250
特點(diǎn)： *
通道數(shù)： 1，UART
FIFO's： 128 字節(jié)
規(guī)程： USB 2.0
電源電壓： 3.3V
帶自動(dòng)流量控制功能： 是
安裝類(lèi)型： 表面貼裝
封裝/外殼： 48-TQFP
供應(yīng)商設(shè)備封裝： 48-TQFP（7x7）
包裝： 托盤(pán)
配用： 1016-1303-ND - EVAL BOARD FOR XR21V1414IM
其它名稱(chēng)： 1016-1304
XR21V1414
5
REV. 1.3.0
4-CH FULL-SPEED USB UART
TXB
8
O
UART Channel B Transmit Data or IR Transmit Data.
GPIOB0/RIB#/
RWKB#
15
I/O
UART Channel B general purpose I/O or UART Ring-Indicator input
(active low) or Remote Wakeup Input (
See ”Section 1.5.12, USB Sus-
pend” on page 14.). This pin has an internal pull-up resistor which is
disabled during suspend mode. If using this GPIO as an input, an external
pull-up resistor is required to minimize the power consumption in the sus-
pend mode.
GPIOB1/CDB#
14
I/O
UART Channel B general purpose I/O or UART Carrier-Detect input
(active low). This pin has an internal pull-up resistor which is disabled dur-
ing suspend mode. If using this GPIO as an input, an external pull-up
resistor is required to minimize the power consumption in the suspend
mode.
GPIOB2/DSRB#
13
I/O
UART Channel B general purpose I/O or UART Data-Set-Ready input
(active low).
See ”Section 1.5.6, Automatic DTR/DSR Hardware
Flow Control” on page 13. This pin has an internal pull-up resistor
which is disabled during suspend mode. If using this GPIO as an input, an
external pull-up resistor is required to minimize the power consumption in
the suspend mode.
GPIOB3/DTRB#
12
I/O
UART Channel B general purpose I/O or UART Data-Terminal-Ready out-
put (active low).
See ”Section 1.5.6, Automatic DTR/DSR Hard-
ware Flow Control” on page 13. This pin has an internal pull-up
resistor which is disabled during suspend mode. If using this GPIO as an
input, an external pull-up resistor is required to minimize the power con-
sumption in the suspend mode.
GPIOB4/CTSB#
11
I/O
UART Channel B general purpose I/O or UART Clear-to-Send input
(active low).
See ”Section 1.5.5, Automatic RTS/CTS Hardware
Flow Control” on page 13. This pin has an internal pull-up resistor
which is disabled during suspend mode. If using this GPIO as an input, an
external pull-up resistor is required to minimize the power consumption in
the suspend mode.
GPIOB5/RTSB#/
RS485B
10
I/O
UART Channel B general purpose I/O or UART Request-to-Send output
(active low) or auto RS-485 half-duplex control.
See ”Section 1.5.5,
Automatic RTS/CTS Hardware Flow Control” on page 13. This
pin has an internal pull-up resistor which is disabled during suspend mode.
If using this GPIO as an input, an external pull-up resistor is required to
minimize the power consumption in the suspend mode.
UART Channel C Signals
RXC
23
I
UART Channel C Receive Data or IR Receive Data. This pin has an inter-
nal pull-up resistor. Internal pull-up resistor is not disabled during suspend
mode.
TXC
22
O
UART Channel C Transmit Data or IR Transmit Data.
GPIOC0/RIC#/
RWKC#
29
I/O
UART Channel C general purpose I/O or UART Ring-Indicator input
(active low) or Remote Wakeup Input (
See ”Section 1.5.12, USB Sus-
pend” on page 14.). This pin has an internal pull-up resistor which is
disabled during suspend mode. If using this GPIO as an input, an external
pull-up resistor is required to minimize the power consumption in the sus-
pend mode.
Pin Description
NAME
48-QFN
PIN #
TYPE
DESCRIPTION
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