REV. 1.1.1 4 CTSA# 40 38 I UART channel A Clear-to-Send (active low) or general purpose input. This input shou" />
參數(shù)資料
型號： XR16L2450IM-F
廠商： Exar Corporation
文件頁數(shù)： 25/30頁
文件大小： 0K
描述： IC UART FIFO 1B DUAL 48TQFP
標準包裝： 250
特點： *
通道數(shù)： 2，DUART
FIFO's： 1 字節(jié)
規(guī)程： RS232
電源電壓： 2.25 V ~ 5.5 V
帶故障啟動位檢測功能： 是
帶調制解調器控制功能： 是
帶CMOS： 是
安裝類型： 表面貼裝
封裝/外殼： 48-TQFP
供應商設備封裝： 48-TQFP（7x7）
包裝： 托盤
XR16L2450
xr
2.25V TO 5.5V DUART
REV. 1.1.1
4
CTSA#
40
38
I
UART channel A Clear-to-Send (active low) or general purpose input.
This input should be connected to VCC when not used. This input has
no effect on the UART.
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 functionality. If it is not used at all, leave it
unconnected.
TXB
14
8
O
UART channel B Transmit Data. If it is not used, leave it unconnected.
RXB
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.
RTSB#
27
22
O
UART channel B Request-to-Send (active low) or general purpose out-
put. If it is not used, leave it unconnected.
CTSB#
28
23
I
UART channel B Clear-to-Send (active low) or general purpose input.
This input should be connected to VCC when not used. This input has
no effect on the UART.
DTRB#
38
35
O
UART channel B Data-Terminal-Ready (active low) or general purpose
output. If it is not used, leave it unconnected.
DSRB#
25
20
I
UART channel B 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.
CDB#
21
16
I
UART channel B 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.
RIB#
26
21
I
UART channel B 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.
PIN DESCRIPTIONS
NAME
44-PLCC
PIN #
48-TQFP
PIN #
TYPE
DESCRIPTION
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相關代理商/技術參數(shù)
參數(shù)描述
XR16L2550 制造商:EXAR 制造商全稱:EXAR 功能描述:LOW VOLTAGE DUART WITH 16-BYTE FIFO
XR16L2550_07 制造商:EXAR 制造商全稱:EXAR 功能描述:LOW VOLTAGE DUART WITH 16-BYTE FIFO
XR16L2550IJ 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述:
XR16L2550IJ-F 功能描述:UART 接口集成電路 UART RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
XR16L2550IL 功能描述:UART 接口集成電路 UART RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
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