參數(shù)資料
型號(hào): ST16C452
廠商: Exar Corporation
英文描述: Dual UART with Parallel Printer Port(雙通用異步接收器/發(fā)送器(帶并行打印機(jī)端口))
中文描述: 雙UART與并行打印機(jī)端口(雙通用異步接收器/發(fā)送器(帶并行打印機(jī)端口))
文件頁(yè)數(shù): 6/30頁(yè)
文件大小: 389K
代理商: ST16C452
6
ST16C452/452PS
Rev. 3.10
Symbol
Pin
Signal Type
Pin Description
connected with a printer to select the printer with an active
low.
-STROBE
55
I/O
Strobe (open drain, with internal pull-up) - General purpose
I/O or data strobe output. Normally this output is connected
to a printer and indicates that valid data is available at the
printer port (PD0-PD7).
N.C.
22,42
Not Used. Should be left open.
VCC
23,40,64
Pwr
Power supply input.
-CD A/B
29,8
I
Carrier Detect (active low) - These inputs are associated
with individual UART channels A through B. A logic 0 on this
pin indicates that a carrier has been detected by the modem
for that channel.
-CTS A/B
28,13
I
Clear to Send (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 ready to accept
transmit data from the 452/452PS for the given channel.
Status can be tested by reading MSR bit-4 for that
channel(s). -CTS has no effect on the transmit or receive
operation.
-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 452/452PS 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.
SYMBOL DESCRIPTION
相關(guān)PDF資料
PDF描述
ST16C550 UART with 16-Byte FIFO(通用異步接收器/發(fā)送器(帶16字節(jié)的先進(jìn)先出))
ST16C552 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(jìn)先出和并行打印機(jī)端口))
ST16C552A 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(jìn)先出和并行打印機(jī)端口))
ST16C554DCJ68 QUAD UART WITH 16-BYTE FIFOS
ST68C554 QUAD UART WITH 16-BYTE FIFOS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ST16C452CJ68 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述:UART 2-CH 3.3V/5V 68-Pin PLCC
ST16C452CJ68-F 功能描述:UART 接口集成電路 DUAL UART W/PARALEL PRINTER PORT 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
ST16C452CJ68PS 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述:
ST16C452CJ68PS-F 功能描述:UART 接口集成電路 DUAL UART W/PARALEL PRINTER PORT 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
ST16C452CJ68TR-F 功能描述:UART 接口集成電路 DUAL UART W/PARALEL PRINTER PORT 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