参数资料
| 型号： | ST16C450CQ48-F |
| 厂商： | Exar Corporation |
| 文件页数： | 8/28页 |
| 文件大小： | 0K |
| 描述： | IC UART SINGLE 48TQFP |
| 标准包装： | 250 |
| 特点： | * |
| 通道数： | 1，UART |
| FIFO's： | 1 字节 |
| 电源电压： | 2.97 V ~ 5.5 V |
| 带故障启动位检测功能： | 是 |
| 带调制解调器控制功能： | 是 |
| 带CMOS： | 是 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 48-TQFP |
| 供应商设备封装： | 48-TQFP（7x7） |
| 包装： | 托盘 |
| 其它名称： | 1016-1444 1016-1444-ND 1016-1668 ST16C450CQ48-F-ND |
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ST16C450
16
Rev. 4.20
LSR BIT-3:
Logic 0 = No framing error (normal default condition).
Logic 1 = Framing error. The receive character did not
have a valid stop bit(s).
LSR BIT-4:
Logic 0 = No break condition (normal default condi-
tion)
Logic 1 = The receiver received a break signal.
LSR BIT-5:
This bit indicates that the ST16C450 is ready to accept
new characters for transmission. This bit causes the
ST16C450 to issue an interrupt to the CPU when the
transmit holding register is empty and the interrupt
enable is set.
Logic 0 = Transmit holding register is not empty.
(normal default condition)
Logic 1 = Transmit holding register is empty. When
this bit is a logic 1, the CPU can load a new characters
into the Transmit Holding Register for transmission.
LSR BIT-6:
Logic 0 = Transmitter holding and shift registers are
full.
Logic 1 = Transmitter holding and shift registers are
empty.
LSR BIT-7: Not used and set to “0”.
Modem Status Register (MSR)
This register provides the current state of the control
interface signals from the modem, or other peripheral
device that the ST16C450 is connected to. Four bits
of this register are used to indicate the changed
information. These bits are set to a logic 1 whenever
a control input from the modem changes state. These
bits are set to a logic 0 whenever the CPU reads this
register.
MSR BIT-0:
Logic 0 = No -CTS Change (normal default condition)
Logic 1 = The -CTS input to the ST16C450 has
changed state since the last time it was read. A
modem Status Interrupt will be generated.
MSR BIT-1:
Logic 0 = No -DSR Change (normal default condition)
Logic 1 = The -DSR input to the ST16C450 has
changed state since the last time it was read. A
modem Status Interrupt will be generated.
MSR BIT-2:
Logic 0 = No -RI Change (normal default condition)
Logic 1 = The -RI input to the ST16C450 has changed
from a logic 0 to a logic 1. A modem Status Interrupt
will be generated.
MSR BIT-3:
Logic 0 = No -CD Change (normal default condition)
Logic 1 = Indicates that the -CD input to the has
changed state since the last time it was read. A
modem Status Interrupt will be generated.
MSR BIT-4:
CTS (active high, logical 1). Normally this bit is the
compliment of the -CTS input. In the loop-back mode,
this bit is equivalent to the RTS bit in the MCR register.
MSR BIT-5:
DSR (active high, logical 1). Normally this bit is the
compliment of the -DSR input. In the loop-back mode,
this bit is equivalent to the DTR bit in the MCR register.
MSR BIT-6:
RI (active high, logical 1). Normally this bit is the
compliment of the -RI input. In the loop-back mode this
bit is equivalent to the OP1 bit in the MCR register.
MSR BIT-7:
CD (active high, logical 1). Normally this bit is the
compliment of the -CD input. In the loop-back mode
this bit is equivalent to the OP2 bit in the MCR register.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ST16C450CQ48TR-F | 功能描述:UART 接口集成电路 SINGLE UART RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
| ST16C450IJ44 | 制造商:EXAR 制造商全称:EXAR 功能描述:UNIVERSAL ASYNCHRONOUS RECEIVER/TRANSMITTER (UART) |
| ST16C450IJ44-F | 功能描述:UART 接口集成电路 SINGLE UART RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
| ST16C450IJ44TR | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
| ST16C450IJ44TR-F | 功能描述:UART 接口集成电路 SINGLE UART RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
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