參數(shù)資料
型號(hào)： ST16C454
廠商： Exar Corporation
英文描述： QUAD UNIVERSAL ASYNCHRONOUS RECEIVER/TRANSMITTER (UART)
中文描述： 四通用異步接收/發(fā)送器（UART）
文件頁(yè)數(shù)： 7/30頁(yè)
文件大?。?/td> 378K
代理商： ST16C454
ST16C454/68C454
7
Rev. 3.20
-CD A-B
-CD C-D
9,27
43,61
I
Carrier Detect (active low) - These inputs are associated with
individual UART channels A through D. A logic 0 on this pin
indicates that a carrier has been detected by the modem for that
channel.
-CTS A-B
-CTS C-D
11,25
45,59
I
Clear to Send (active low) - These inputs are associated with
individual UART channels, A through D. A logic 0 on the -CTS pin
indicates the modem or data set is ready to accept transmit data
from the 454. Status can be tested by reading MSR bit-4.
-DSR A-B
-DSR C-D
10,26
44,60
I
Data Set Ready (active low) - These inputs are associated with
individual UART channels, A through D. A logic 0 on this pin
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. This pin has no effect on the
UARTs transmit or receive operation.
-DTR A-B
-DTR C-D
12,24
46,58
O
Data Terminal Ready (active low) - These inputs are associated
with individual UART channels, A through D. A logic 0 on this pin
indicates that the 454 is powered-on and ready. This pin can be
controlled via the modem control register. 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. This pin has
no effect on the UARTs transmit or receive operation.
-RI A-B
-RI C-D
8,28
42,62
I
Ring Indicator (active low) - These inputs are associated with
individual UART channels, A through D. A logic 0 on this pin
indicates the modem has received a ringing signal from the
telephone line. A logic 1 transition on this input pin will generate an
interrupt.
-RTS A-B
-RTS C-D
14,22
48,56
O
Request to Send (active low) - These outputs are associated with
individual UART channels, A through D. A logic 0 on the -RTS pin
indicates the transmitter has data ready and waiting to send.
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
Symbol
Pin
Signal
type
Pin Description
SYMBOL DESCRIPTION
相關(guān)PDF資料
PDF描述
ST16C454CJ68 QUAD UNIVERSAL ASYNCHRONOUS RECEIVER/TRANSMITTER (UART)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ST16C454_05 制造商:EXAR 制造商全稱:EXAR 功能描述:QUAD UNIVERSAL ASYNCHRONOUS RECEIVER/TRANSMITTER (UART)
ST16C454CJ 制造商:Exar Corporation 功能描述:
ST16C454CJ-0A-EVB 功能描述:界面開(kāi)發(fā)工具 Supports C454 68 ld PLCC, ISA Interface RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評(píng)估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V
ST16C454CJ68 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述:
ST16C454CJ68-F 功能描述:UART 接口集成電路 QUAD 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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