- 您现在的位置：买卖IC网 > PDF目录3765 > SC16IS752IBS,151 (NXP Semiconductors)IC UART DUAL I2C/SPI 32-HVQFN PDF资料下载
参数资料
| 型号： | SC16IS752IBS,151 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 8/60页 |
| 文件大小： | 0K |
| 描述： | IC UART DUAL I2C/SPI 32-HVQFN |
| 产品培训模块： | Bridge Solutions Stand-Alone UARTs I²C Bus Fundamentals |
| 特色产品： | NXP - I2C Interface |
| 标准包装： | 490 |
| 特点： | 低电流 |
| 通道数： | 2，DUART |
| 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 |
| 带故障启动位检测功能： | 是 |
| 带调制解调器控制功能： | 是 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-VFQFN 裸露焊盘 |
| 供应商设备封装： | 32-HVQFN（5x5） |
| 包装： | 托盘 |
| 产品目录页面： | 828 (CN2011-ZH PDF) |
| 配用： | 568-4000-ND - DEMO BOARD SPI/I2C TO DUAL UART 568-3510-ND - DEMO BOARD SPI/I2C TO UART |
| 其它名称： | 568-2236 935279288151 SC16IS752IBS-S |
第1页第2页第3页第4页第5页第6页第7页当前第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页
SC16IS752_SC16IS762
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2012. All rights reserved.
Product data sheet
Rev. 9 — 22 March 2012
16 of 60
NXP Semiconductors
SC16IS752; SC16IS762
Dual UART with I2C-bus/SPI interface, 64-byte FIFOs, IrDA SIR
7.6 Sleep mode
Sleep mode is an enhanced feature of the SC16IS752/SC16IS762 UART. It is enabled
when EFR[4], the enhanced functions bit, is set and when IER[4] is set. Sleep mode is
entered when:
The serial data input line, RX, is idle (see Section 7.7 “Break and time-out
The TX FIFO and TX shift register are empty.
There are no interrupts pending except THR.
Remark: Sleep mode will not be entered if there is data in the RX FIFO.
In Sleep mode, the clock to the UART is stopped. Since most registers are clocked using
these clocks, the power consumption is greatly reduced. The UART will wake up when
any change is detected on the RX line, when there is any change in the state of the
modem input pins, or if data is written to the TX FIFO.
Remark: Writing to the divisor latches DLL and DLH to set the baud clock must not be
done during Sleep mode. Therefore, it is advisable to disable Sleep mode using IER[4]
before writing to DLL or DLH.
7.7 Break and time-out conditions
When the UART receives a number of characters and these data are not enough to set off
the receive interrupt (because they do not reach the receive trigger level), the UART will
generate a time-out interrupt instead, 4 character times after the last character is
received. The time-out counter will be reset at the center of each stop bit received or each
time the receive FIFO is read.
A break condition is detected when the RX pin is pulled LOW for a duration longer than
the time it takes to send a complete character plus start, stop and parity bits. A break
condition can be sent by setting LCR[6], when this happens the TX pin will be pulled LOW
until LSR[6] is cleared by the software.
7.8 Programmable baud rate generator
The SC16IS752/SC16IS762 UART contains a programmable baud rate generator that
takes any clock input and divides it by a divisor in the range between 1 and (216
1). An
additional divide-by-4 prescaler is also available and can be selected by MCR[7], as
shown in Figure 10. The output frequency of the baud rate generator is 16
the baud
rate. The formula for the divisor is:
(1)
where:
prescaler = 1, when MCR[7] is set to logic 0 after reset (divide-by-1 clock selected)
prescaler = 4, when MCR[7] is set to logic 1 after reset (divide-by-4 clock selected).
Remark: The default value of prescaler after reset is divide-by-1.
divisor
XTAL1 crystal input frequency
prescaler
-----------------------------------------------------------------------------------
desired baud rate
16
-----------------------------------------------------------------------------------------
=
相关PDF资料 |
PDF描述 |
|---|---|
| SC16IS752IPW,112 | IC UART DUAL 12C/SPI 28TSSOP |
| SC16C850IBS,151 | IC UART SGL-CH 3.3V 32-HVQFN |
| SC16IS760IPW,112 | IC UART 64BYTE 24TSSOP |
| FT2232HL-REEL | IC USB HS DUAL UART/FIFO 64-LQFP |
| ATMEGA168P-20AUR | MCU AVR 16K FLASH 20MHZ 32-TQFP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SC16IS752IBS-F | 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 |
| SC16IS752IPW | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Dual UART with I2C-bus/SPI interface, 64 bytes of transmit and receive FIFOs, IrDA SIR built-in support |
| SC16IS752IPW,112 | 功能描述:UART 接口集成电路 UART DUAL 12C/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 |
| SC16IS752IPW,128 | 功能描述:UART 接口集成电路 I2C/SPI-UARTBRIDGE 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 |
| SC16IS752IPW112 | 制造商:NXP Semiconductors 功能描述:IC DUAL UART FIFO 5MBPS 3.6V TSSOP28 |
发布紧急采购，3分钟左右您将得到回复。