參數(shù)資料
型號： ST16C552A
廠商： Exar Corporation
英文描述： Dual UART with 16-Byte FIFO and Parallel Printer Port(雙通用異步接收器/發(fā)送器（帶16字節(jié)的先進先出和并行打印機端口）)
中文描述： 雙UART），16字節(jié)FIFO和并行打印機端口（雙通用異步接收器/發(fā)送器（帶16字節(jié)的先進先出和并行打印機端口）
文件頁數(shù)： 7/40頁
文件大?。?/td> 463K
代理商： ST16C552A
7
ST16C552/552A
Rev. 3.30
Symbol
Pin
Signal Type
Pin Description
-DSR A/B
31,5
I
Data Set Ready (active low) - These inputs are associated
with individual UART channels, A through B. A logic 0 on
this pin(s) indicates the modem or data set is powered-on
and is ready for data exchange with the UART. This pin has
no effect on the UARTs transmit or receive operation.
-DTR A/B
25,11
O
Data Terminal Ready (active low) - These outputs are
associated with individual UART channels, A through B. A
logic 0 on this pin(s) indicates that the 552/552A is powered-
on and ready. This pin can be controlled via the modem
control register for channel(s) A-B. Writing a logic 1 to MCR
bit-0 will set the -DTR output to logic 0, enabling the modem.
This pin will be a logic 1 after writing a logic 0 to MCR bit-
0, or after a reset. This pin has no effect on the UARTs
transmit or receive operation.
-RI A/B
30,6
I
Ring Indicator (active low) - These inputs are associated
with individual UART channels, A through B. A logic 0 on
this pin(s) indicates the modem has received a ringing
signal from the telephone line(s). A logic 1 transition on this
input pin will generate an interrupt for the ringing channel(s).
This pin does not have any effect on the transmit or receive
operation.
-RTS A/B
24,12
O
Request to Send (active low) - These outputs are associated
with individual UART channels, A through B. A logic 0 on the
-RTS pin(s) indicates the transmitter has data ready and
waiting to send for the given channel(s). Writing a logic 1 in
the modem control register (MCR bit-1) will set this pin to a
logic 0 indicating data is available. After a reset this pin will
be set to a logic 1. This pin does not have any effect on the
transmit or receive operation.
RX A/B
41,62
I
Receive Data Input, RX A-B. - These inputs are associated
with individual serial channel(s) to the 552. The RX signal
will be a logic 1 during reset, idle (no data), or when the
transmitter is disabled. During the local loop-back mode,
the RX input pins are disabled and TX data is internally
connected to the UART RX Inputs, internally.
SYMBOL DESCRIPTION
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相關代理商/技術參數(shù)
參數(shù)描述
ST16C552ACJ68 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述:
ST16C552ACJ68-F 功能描述:UART 接口集成電路 DUAL UART W/16BYTE FIFO&PARALELPRNTPORT 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
ST16C552ACJ68TR-F 功能描述:UART 接口集成電路 DUAL UART W/16BYTE FIFO&PARALELPRNTPORT 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
ST16C552AIJ68 制造商:EXAR 制造商全稱:EXAR 功能描述:DUAL UART WITH 16-BYTE FIFO AND PARALLEL PRINTER PORT
ST16C552AIJ68-F 功能描述:UART 接口集成電路 DUAL UART W/16BYTE FIFO&PARALELPRNTPORT 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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