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参数资料
| 型号： | XR16L2550IL |
| 厂商： | Exar Corporation |
| 文件页数： | 34/44页 |
| 文件大小： | 0K |
| 描述： | IC UART FIFO 16B DUAL 32QFN |
| 产品变化通告： | Leaded UART, V&I Obsolescence 11/Apr/2011 |
| 标准包装： | 490 |
| 特点： | * |
| 通道数： | 2，DUART |
| FIFO's： | 16 字节 |
| 规程： | RS232 |
| 电源电压： | 2.25 V ~ 5.5 V |
| 带自动流量控制功能： | 是 |
| 带IrDA 编码器/解码器： | 是 |
| 带故障启动位检测功能： | 是 |
| 带调制解调器控制功能： | 是 |
| 带CMOS： | 是 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-VFQFN 裸露焊盘 |
| 供应商设备封装： | 32-QFN 裸露焊盘（5x5） |
| 包装： | 托盘 |
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XR16L2550
4
LOW VOLTAGE DUART WITH 16-BYTE FIFO
REV. 1.1.3
TXRDYB#
-
12
6
O
UART channel B Transmitter Ready (active low). The output pro-
vides the TX FIFO/THR status for transmit channel B. If it is not
used, leave it unconnected.
RXRDYB#
-
23
18
O
UART channel B Receiver Ready (active low). This output pro-
vides the RX FIFO/RHR status for receive channel B. If it is not
used, leave it unconnected.
MODEM OR SERIAL I/O INTERFACE
TXA
5
13
7
O
UART channel A Transmit Data. If it is not used, leave it uncon-
nected.
RXA
4
11
5
I
UART channel A Receive Data. Normal receive data input must
idle at logic 1 condition. If it is not used, tie it to VCC or pull it high
via a 100k ohm resistor.
RTSA#
23
36
33
O
UART channel A Request-to-Send (active low) or general pur-
pose output. This output must be asserted prior to using auto
RTS flow control, see EFR[6], MCR[1] and IER[6]. If it is not
used, leave it unconnected.
CTSA#
25
40
38
I
UART channel A Clear-to-Send (active low) or general purpose
input. It can be used for auto CTS flow control, see EFR[7] and
IER[7]. This input should be connected to VCC when not used.
DTRA#
-
37
34
O
UART channel A Data-Terminal-Ready (active low) or general
purpose output. If it is not used, leave it unconnected.
DSRA#
-
41
39
I
UART channel A Data-Set-Ready (active low) or general purpose
input. This input should be connected to VCC when not used.
This input has no effect on the UART.
CDA#
-
42
40
I
UART channel A Carrier-Detect (active low) or general purpose
input. This input should be connected to VCC when not used.
This input has no effect on the UART.
RIA#
-
43
41
I
UART channel A Ring-Indicator (active low) or general purpose
input. This input should be connected to VCC when not used.
This input has no effect on the UART.
OP2A#
-
35
32
O
Output Port 2 Channel A - The output state is defined by the user
and through the software setting of MCR[3]. INTA is set to the
active mode and OP2A# output to a logic 0 when MCR[3] is set to
a logic 1. INTA is set to the three state mode and OP2A# to a
logic 1 when MCR[3] is set to a logic 0. This output should not be
used as a general output else it will disturb the INTA output func-
tionality. If it is not used at all, leave it unconnected.
TXB
6
14
8
O
UART channel B Transmit Data. If it is not used, leave it uncon-
nected.
RXB
3
10
4
I
UART channel B Receive Data. Normal receive data input must
idle at logic 1 condition. If it is not used, tie it to VCC or pull it high
via a 100k ohm resistor.
Pin Description
NAME
32-QFN
PIN #
44-PLCC
PIN #
48-TQFP
PIN #
TYPE
DESCRIPTION
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相关代理商/技术参数 |
参数描述 |
|---|---|
| XR16L2550IL-0A-EB | 功能描述:UART 接口集成电路 Supports L2550 32pin QFN, ISA Interface RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
| XR16L2550IL-0B-EB | 功能描述:UART 接口集成电路 Supports L2550 32pin QFN, PCI Interface RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
| XR16L2550IL-F | 功能描述:UART 接口集成电路 UART RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
| XR16L2550ILTR-F | 制造商:Exar Corporation 功能描述:UART 2-CH 16Byte FIFO 2.5V/3.3V/5V 32-Pin QFN EP T/R 制造商:Exar Corporation 功能描述:XR16L2550ILTR-F |
| XR16L2550IM | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
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