參數(shù)資料
型號： ST16C550IJ44
廠商： EXAR CORP
元件分類： 微控制器/微處理器
英文描述： UART WITH 16-BYTE FIFO’s
中文描述： 1 CHANNEL(S), 1.5M bps, SERIAL COMM CONTROLLER, PQCC44
封裝： PLASTIC, LCC-44
文件頁數(shù)： 5/35頁
文件大?。?/td> 227K
代理商： ST16C550IJ44
ST16C550
5
Rev. 4.30
Symbol
Pin
44
Signal
type
Pin Description
40
48
SYMBOL DESCRIPTION
-IOR
21
24
19
I
Read data strobe (active low strobe). A logic 0 on this pin
transfers the contents of the ST16C550 data bus to the CPU.
Connect to logic 1 when using IOR.
-IOW
18
20
16
I
Write data strobe (active low strobe). A logic 0 on this pin
transfers the contents of the CPU data bus to the addressed
internal register. Connect to logic 1 when using IOW.
INT
30
33
30
O
Interrupt Request (active high). Interrupts are enabled in the
interrupt enable register (IER), and when an interrupt con-
dition exists. Interrupt conditions include: receiver errors,
available receiver buffer data, transmit buffer empty, or
when a modem status flag is detected.
-RXRDY
29
32
29
O
Receive Ready. When operating in the FIFO mode, one of
two types of DMA signaling can be selected using the FIFO
control register bit-3. When operating in the ST16C450
mode, only DMA mode “0” is allowed. Mode “0” supports
single transfer DMA in which a transfer is made between
CPU bus cycles. Mode “1” supports multi-transfer DMA in
which multiple transfers are made continuously until the
receiver FIFO has been emptied. In DMA mode “0” -RXRDY
is low, when there is at least one character in the receiver
FIFO or receive holding register. In DMA mode “1”, -RXRDY
is low, when the trigger level or the time-out has been
reached.
-TXRDY
24
27
23
O
Transmit Ready. When operating in the FIFO mode, one of
two types of DMA signaling can be selected using the FIFO
control register bit-3. When operating in the ST16C450
mode, only DMA mode “0” is allowed. Mode “0” supports
single transfer DMA in which a transfer is made between
CPU bus cycles. Mode “1” supports multi-transfer DMA in
which multiple transfers are made continuously until the
transmit FIFO has been filled.
-BAUDOUT
15
17
12
O
Baud Rate Generator Output. This pin provides the 16X
clock of the selected data rate from the baud rate generator.
The RCLK pin must be connected externally to -BAUDOUT
when the receiver is operating at the same data rate.
相關PDF資料
PDF描述
ST16C550IQ48 UART WITH 16-BYTE FIFO’s
ST16C550CJ44 Voltage Regulator IC; Package/Case:8-TSSOP; Output Current:350mA; Output Voltage:1.5V; Supply Voltage Max:6V; Current Rating:350mA; Leaded Process Compatible:No; Output Current Max:350mA; Output Voltage Max:1.5V RoHS Compliant: Yes
ST16C550CP40 Voltage Regulator IC; Output Current:350mA; Output Voltage:1.8V; Package/Case:8-TSSOP; Supply Voltage Max:6V; Current Rating:350mA; Leaded Process Compatible:No; Output Current Max:350mA; Output Voltage Max:1.8V
ST16C550IP40 UART WITH 16-BYTE FIFO’s
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相關代理商/技術參數(shù)
參數(shù)描述
ST16C550IJ44-F 功能描述:UART 接口集成電路 2.97V-5.5V 16B FIFO temp -45 to 85C;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
ST16C550IJ44TR-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
ST16C550IP40 功能描述:UART 接口集成電路 SINGLE UART W/16 BYTE 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
ST16C550IP40-F 功能描述:UART 接口集成電路 SINGLE UART W/16 BYTE 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
ST16C550IQ48 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述:
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