参数资料
| 型号： | XR21V1414IM48-F |
| 厂商： | Exar Corporation |
| 文件页数： | 32/34页 |
| 文件大小： | 0K |
| 描述： | IC UART FIFO USB QUAD 48TQFP |
| 产品培训模块： | UART Product Overview XR21V141x Full-Speed USB UART Family |
| 特色产品： | XR21V141x Full-Speed USB UART |
| 标准包装： | 250 |
| 特点： | * |
| 通道数： | 1，UART |
| FIFO's： | 128 字节 |
| 规程： | USB 2.0 |
| 电源电压： | 3.3V |
| 带自动流量控制功能： | 是 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 48-TQFP |
| 供应商设备封装： | 48-TQFP（7x7） |
| 包装： | 托盘 |
| 配用： | 1016-1303-ND - EVAL BOARD FOR XR21V1414IM |
| 其它名称： | 1016-1304 |
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XR21V1414
7
REV. 1.3.0
4-CH FULL-SPEED USB UART
GPIOD2/DSRD#
3
I/O
UART Channel D 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.
GPIOD3/DTRD#
48
I/O
UART Channel D 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.
GPIOD4/CTSD#
47
I/O
UART Channel D 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.
GPIOD5/RTSD#/
RS485D
46
I/O
UART Channel D 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.
USB Interface Signals
USBD+
43
I/O
USB port differential data plus. This pin has a 1.5 K Ohm internal pull-up
resistor.
USBD-
42
I/O
USB port differential data minus.
I2C Interface Signals
SDA
35
I/O OD
I2C-controller data input/output (open-drain). An optional external I2C
EEPROM can be used to store default configurations upon power-up
including the USB Vendor ID and Device ID. See
Table 3. A pull-up
resisitor (typically 4.7 to 10k Ohms) is required.
If an EEPROM is not used, this pin can be used with the SCL pin to select
the Remote Wake-up and Power modes. An external pull-up or pull-down
resistor is required. See
Table 2.
SCL
36
I/O OD
I2C-controller serial input clock. An optional external I2C EEPROM can be
used to store default configurations upon power-up including the USB
Vendor ID and Device ID. See
Table 3. A pull-up resisitor (typically 4.7
to 10k Ohms) is required.
If an EEPROM is not used, this pin can be used with the SDA pin to select
the Remote Wake-up and Power modes. An external pull-up or pull-down
resistor is required. See
Table 2.
Pin Description
NAME
48-QFN
PIN #
TYPE
DESCRIPTION
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| XR21V1414IM48-F | 制造商:Exar Corporation 功能描述:IC QUAD UART 12MBPS 3.63V 48-TQFP |
| XR21V1414IM48TR-F | 制造商:Exar Corporation 功能描述:USB-to-UART 4-CH 128Byte FIFO 48-Pin TQFP T/R 制造商:Exar Corporation 功能描述:XR21V1414 Series 12 Mbps 3.63 V Quad Channel USB UART SMT - TQFP-48 制造商:Exar Corporation 功能描述:XR21V1414IM48TR-F 制造商:EXAR 功能描述:USB-to-UART 4-CH 128Byte FIFO 48-Pin TQFP T/R |
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