参数资料
| 型号： | XR19L200IL32-F |
| 厂商： | Exar Corporation |
| 文件页数： | 5/40页 |
| 文件大小： | 0K |
| 描述： | IC UART/TXRX RS232 32QFN |
| 标准包装： | 490 |
| 特点： | * |
| 通道数： | 1，UART |
| FIFO's： | 16 字节 |
| 规程： | RS232 |
| 电源电压： | 3 V ~ 5.5 V |
| 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-QFN 裸露焊盘（5x5） |
| 包装： | 托盘 |
第1页第2页第3页第4页当前第5页第6页第7页第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
XR19L200
13
REV. 1.0.2
SINGLE CHANNEL INTEGRATED UART AND RS-232 TRANSCEIVER
2.14.1.2
UART active, charge pump of RS-232 transceiver shut down
If the ACP pin is HIGH and the UART portion of the L200 is not in sleep mode, then the charge pump will
automatically shut down to conserve power if the following conditions are true:
■ no activity on the TXD output signals
■ RXD input signal has been idling LOW for approximately 30 seconds
When these conditions are satisfied, the L200 shuts down the charge pump and tri-states the RS-232 drivers
to conserve power. In this mode, the RS-232 receivers are fully active and the internal registers of the L200
can be accessed. The time for the charge pump to resume normal operation after exiting the sleep mode is
typically 45
s. It will wake up by any of the following:
■ a receive data start bit transition on the RXD input (LOW to HIGH)
■ a data byte is loaded to the transmitter, THR or FIFO
Because the receivers are fully active when the charge pump is turned off, any data received will be transferred
to/from the UART without any issues.
2.14.2
Full Sleep Mode
In full sleep mode, the L210 shuts down the charge pump and the internal oscillator. The L210 enters the full
sleep mode if the following conditions are satisfied:
■ the UART portion of the L210 is already in sleep mode (no output on XTAL2)
■ the ACP (Autosleep for Charge Pump) pin is HIGH
When these conditions are satisfied, both the UART and the charge pump will be in the sleep mode. In this
mode, the RS-232 receivers are fully active and the internal registers of the L200 can be accessed. The L200
exits the full sleep mode if either the ACP pin becomes LOW or the internal oscillator starts up. The time for the
charge pump to resume normal operation after exiting the full sleep mode is typically 45
s.
相关PDF资料 |
PDF描述 |
|---|---|
| XR19L202IL48-F | IC UART/TXRX RS232 48QFN |
| XR19L210IL40-F | IC UART/TXRX RS232 40QFN |
| XR19L212IL48-F | IC UART/TXRX RS232 48QFN |
| XR19L220IL40-F | IC UART/TXRX RS232 40QFN |
| XR19L222IL64-F | IC UART/TXRX RS232 64QFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| XR19L202 | 制造商:EXAR 制造商全称:EXAR 功能描述:TWO CHANNEL INTEGRATED UART AND RS-232 TRANSCEIVER |
| XR19L202IL48 | 制造商:EXAR 制造商全称:EXAR 功能描述:TWO CHANNEL INTEGRATED UART AND RS-232 TRANSCEIVER |
| XR19L202IL48-0B-EB | 功能描述:界面开发工具 Supports L202 48 pin QFN,PCI Interface RoHS:否 制造商:Bourns 产品:Evaluation Boards 类型:RS-485 工具用于评估:ADM3485E 接口类型:RS-485 工作电源电压:3.3 V |
| XR19L202IL48-F | 功能描述:UART 接口集成电路 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 |
| XR19L210 | 制造商:EXAR 制造商全称:EXAR 功能描述:SINGLE CHANNEL INTEGRATED UART AND RS-232 TRANSCEIVER |
发布紧急采购，3分钟左右您将得到回复。