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参数资料
| 型号： | SC16IS741IPW,128 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 4/17页 |
| 文件大小： | 0K |
| 描述： | IC UART 16TSSOP |
| 标准包装： | 2,500 |
| 特点： | RS-485 |
| 通道数： | 1，UART |
| FIFO's： | 64 字节 |
| 规程： | RS232，RS485 |
| 电源电压： | 2.5V, 3.3V |
| 带自动流量控制功能： | 是 |
| 带IrDA 编码器/解码器： | 是 |
| 带调制解调器控制功能： | 是 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 16-TSSOP |
| 包装： | 带卷 (TR) |
SC16IS741_1
NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 01 — 29 April 2010
12 of 52
NXP Semiconductors
SC16IS741
Single UART with I2C-bus/SPI interface, 64-byte FIFOs, IrDA SIR
7.5.1 Interrupt mode operation
In Interrupt mode (if any bit of IER[3:0] is 1) the host is informed of the status of the
receiver and transmitter by an interrupt signal, IRQ. Therefore, it is not necessary to
continuously poll the Line Status Register (LSR) to see if any interrupt needs to be
serviced. Figure 8 shows Interrupt mode operation.
7.5.2 Polled mode operation
In Polled mode (IER[3:0] = 0000) the status of the receiver and transmitter can be
checked by polling the Line Status Register (LSR). This mode is an alternative to the FIFO
Interrupt mode of operation where the status of the receiver and transmitter is
automatically known by means of interrupts sent to the CPU. Figure 9 shows FIFO Polled
mode operation.
Fig 8.
Interrupt mode operation
11
IIR
IER
THR
RHR
HOST
IRQ
002aab042
read IIR
Fig 9.
FIFO Polled mode operation
00
LSR
IER
THR
RHR
HOST
read LSR
002aab043
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相关代理商/技术参数 |
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| SC16IS74Q900 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Single UART with I2C-bus/SPI interface, 64 bytes of transmit and receive FIFOs |
| SC16IS750 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Single UART with I2C-bus/SPI interface, 64 bytes of transmit and receive FIFOs, IrDA SIR built-in support |
| SC16IS750IBS | 功能描述:UART 接口集成电路 I2C/SPI-UARTBRIDGE W/IRDA AND GPIO 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 |
| SC16IS750IBS,128 | 功能描述:UART 接口集成电路 I2C/SPI-UARTBRIDGE W/IRDA AND GPIO 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 |
| SC16IS750IBS,151 | 功能描述:UART 接口集成电路 UART I2C/SPI 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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