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XR19L400IL40-F PDF预览

XR19L400IL40-F

更新时间: 2024-02-20 10:01:34
品牌 Logo 应用领域
艾科嘉 - EXAR /
页数 文件大小 规格书
46页 1017K
描述
Serial I/O Controller, 1 Channel(s), 1MBps, CMOS, 6 X 6 MM, 0.90 MM HEIGHT, GREEN, QFN-40

XR19L400IL40-F 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Obsolete零件包装代码:QFN
包装说明:VQCCN, LCC40,.24SQ,20针数:40
Reach Compliance Code:compliantECCN代码:5A991
HTS代码:8542.31.00.01风险等级:5.74
其他特性:ALSO OPERATES AT 3.3V SUPPLY地址总线宽度:3
边界扫描:NO最大时钟频率:64 MHz
通信协议:ASYNC, BIT最大数据传输速率:1 MBps
外部数据总线宽度:8JESD-30 代码:S-XQCC-N40
JESD-609代码:e3长度:6 mm
低功率模式:YES湿度敏感等级:3
串行 I/O 数:1端子数量:40
最高工作温度:85 °C最低工作温度:-40 °C
封装主体材料:UNSPECIFIED封装代码:VQCCN
封装等效代码:LCC40,.24SQ,20封装形状:SQUARE
封装形式:CHIP CARRIER, VERY THIN PROFILE峰值回流温度(摄氏度):260
电源:3.3/5 V认证状态:Not Qualified
座面最大高度:1 mm子类别:Serial IO/Communication Controllers
最大供电电压:5.5 V最小供电电压:4.5 V
标称供电电压:5 V表面贴装:YES
技术:CMOS温度等级:INDUSTRIAL
端子面层:Matte Tin (Sn)端子形式:NO LEAD
端子节距:0.5 mm端子位置:QUAD
处于峰值回流温度下的最长时间:40宽度:6 mm
uPs/uCs/外围集成电路类型:SERIAL IO/COMMUNICATION CONTROLLER, SERIALBase Number Matches:1

XR19L400IL40-F 数据手册

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XR19L400  
SINGLE CHANNEL INTEGRATED UART AND RS-485 TRANSCEIVER  
JULY 2009  
REV. 1.0.3  
APPLICATIONS  
GENERAL DESCRIPTION  
Battery-Powered Equipment  
Handheld and Mobile Devices  
Handheld Terminals  
Industrial Peripheral Interfaces  
Point-of-Sale (POS) Systems  
The XR19L400 (L400) is a highly integrated device that  
combines  
a
full-featured single channel Universal  
Asynchronous Receiver and Transmitter (UART) and RS-  
485 transceivers. The L400 is designed to operate with a  
single 3.3V or 5V power supply. The L400 is fully compliant  
with RS-485 Standards.  
The L400 operates in four different modes: Active, Partial  
Sleep, Full Sleep and Power-Save. Each mode can be  
invoked via hardware or software. Upon power-up, the  
L400 is in the Active mode where the UART and RS-485  
transceiver function normally. In the Partial Sleep mode, the  
internal crystal oscillator of the UART or charge pump of the  
RS-485 transceiver is turned off. In Full Sleep mode, both  
the crystal oscillator and the charge pump are turned off.  
While the UART is in the Sleep mode, the Power-Save  
mode isolates the core logic from the control signals (chip  
select, read/write strobes, address and data bus lines) to  
minimize the power consumption. The RS-485 receivers  
remain active in any of these four modes.  
FEATURES  
Meets true RS-485 standards at 3.3V or 5V operation  
Up to 8 Mbps data transmission rate  
45us sleep mode exit (charge pump to full power)  
ESD protection for RS-485 I/O pins at  
+/-15kV - Human Body Model  
+/- 8kV - IEC 61000-4-2, Contact Discharge  
+/- 15kV - IEC 61000-4-2, Air-Gap Discharge  
Software compatible with industry standard 16550 UART  
Intel/Motorola bus select  
Complete modem interface  
Sleep and Power-save modes to conserve battery power  
Wake-up interrupt upon exiting low power modes  
FIGURE 1. BLOCK DIAGRAM  
*5 V Tolerant  
Inputs  
Crystal  
Charge Pump  
BRG  
Osc/Buffer  
PwrSave  
A2:A0  
D7:D0  
64 Byte  
TX FIFO  
TX+  
TX-  
TX  
RX  
IOR#  
RX+  
RX-  
64 Byte  
RX FIFO  
IOW# (R/W#)  
CS# (CS#)  
INT (IRQ#)  
RESET (RESET#)  
I/M#  
VCC33  
CTS#  
Modem  
I/Os  
DSR#  
RI#  
HALF/FULL#  
CD#  
UART  
RS-485 Transceiver  
XR19L400  
Exar Corporation 48720 Kato Road, Fremont CA, 94538 (510) 668-7000 FAX (510) 668-7017 www.exar.com  

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