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| 型號(hào)： | SC16IS741IPW,112 |
| 廠(chǎng)商： | NXP Semiconductors |
| 文件頁(yè)數(shù)： | 4/17頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC UART 16TSSOP |
| 標(biāo)準(zhǔn)包裝： | 96 |
| 特點(diǎn)： | RS-485 |
| 通道數(shù)： | 1，UART |
| FIFO's： | 64 字節(jié) |
| 規(guī)程： | RS232，RS485 |
| 電源電壓： | 2.5V, 3.3V |
| 帶自動(dòng)流量控制功能： | 是 |
| 帶IrDA 編碼器/解碼器： | 是 |
| 帶調(diào)制解調(diào)器控制功能： | 是 |
| 安裝類(lèi)型： | 表面貼裝 |
| 封裝/外殼： | 16-TSSOP（0.173"，4.40mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 16-TSSOP |
| 包裝： | 管件 |
| 其它名稱(chēng)： | 568-5784 SC16IS741IPW,112-ND |
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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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| SC16IS750IBS | 功能描述:UART 接口集成電路 I2C/SPI-UARTBRIDGE W/IRDA AND GPIO 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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