REV. 4.4.1 2.97V TO 5.5V DUART WITH 16-BYTE FIFO TXRDYB# - 12 6 O UART channel B Transmitter Ready (active low). The out- put provi" />
參數(shù)資料
型號： ST16C2550CQ-0B-EB
廠商： Exar Corporation
文件頁數(shù)： 33/37頁
文件大?。?/td> 0K
描述： EVAL BOARD FOR ST16C2551 48TQFP
標準包裝： 1
系列： *
ST16C2550
5
REV. 4.4.1
2.97V TO 5.5V DUART WITH 16-BYTE FIFO
TXRDYB#
-
12
6
O
UART channel B Transmitter Ready (active low). The out-
put provides the TX FIFO/THR status for transmit channel
B. See Table 2. If it is not used, leave it unconnected.
RXRDYB#
-
23
18
O
UART channel B Receiver Ready (active low). This out-
put provides the RX FIFO/RHR status for receive channel
B. See Table 2. If it is not used, leave it unconnected.
MODEM OR SERIAL I/O INTERFACE
TXA
11
13
7
O
UART channel A Transmit Data. If it is not used, leave it
unconnected.
RXA
10
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#
32
36
33
O
UART channel A Request-to-Send (active low) or general
purpose output. If it is not used, leave it unconnected.
CTSA#
36
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#
33
37
34
O
UART channel A Data-Terminal-Ready (active low) or
general purpose output. If it is not used, leave it uncon-
nected.
DSRA#
37
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#
38
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#
39
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#
31
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. See MCR[3]. This output should not be
used as a general output else it will disturb the INTA out-
put functionality. If it is not used at all, leave it uncon-
nected.
TXB
12
14
8
O
UART channel B Transmit Data. If it is not used, leave it
unconnected.
RXB
9
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#
24
27
22
O
UART channel B Request-to-Send (active low) or general
purpose output. If it is not used, leave it unconnected.
Pin Description
NAME
40-PDIP
PIN #
44-PLCC
PIN #
48-TQFP
PIN #
TYPE
DESCRIPTION
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參數(shù)描述
ST16C2550CQ48 制造商:Exar Corporation 功能描述:
ST16C2550CQ48-F 功能描述:UART 接口集成電路 2.97V-5.5V 16B FIFO temp 0C to 70C; 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
ST16C2550CQ48TR-F 功能描述:UART 接口集成電路 DUAL UART W/16BYTE FIFO 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
ST16C2550IJ44 制造商:Exar Corporation 功能描述:
ST16C2550IJ44-F 功能描述:UART 接口集成電路 DUAL UART W/16BYTE FIFO 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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