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XR19L222IL64-F PDF预览

XR19L222IL64-F

更新时间： 2024-11-22 21:16:35
品牌 Logo 应用领域
艾科嘉 - EXAR 驱动接口集成电路驱动器
页数 文件大小 规格书
53页 401K
描述
Line Transceiver, 3 Func, 3 Driver, 3 Rcvr, CMOS, 9 X 9 MM, 0.90 MM HEIGHT, GREEN, QFN-64

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XR19L222IL64-F 技术参数

是否Rohs认证： 符合生命周期：Obsolete
零件包装代码：QFN包装说明：HVQCCN,
针数：64Reach Compliance Code：unknown
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.82差分输出：NO
驱动器位数：3输入特性：SCHMITT TRIGGER
接口集成电路类型：LINE TRANSCEIVER接口标准：EIA-232-F; TIA-232-F
JESD-30 代码：S-XQCC-N64JESD-609代码：e3
长度：9 mm湿度敏感等级：3
功能数量：3端子数量：64
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：HVQCCN
封装形状：SQUARE封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：260认证状态：Not Qualified
最大接收延迟：接收器位数：3
座面最大高度：1 mm最大供电电压：5.5 V
最小供电电压：3.3 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：9 mm
Base Number Matches：1

XR19L222IL64-F 数据手册

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XR19L222  
TWO CHANNEL INTEGRATED UART AND RS-232 TRANSCEIVER  
JULY 2007  
REV. 1.0.1  
APPLICATIONS  
GENERAL DESCRIPTION  
•
•
•
•
•
Battery-Powered Equipment  
Handheld and Mobile Devices  
Handheld Terminals  
The XR19L222 (L222) is a highly integrated device that  
combines  
a
full-featured two channel Universal  
Asynchronous Receiver and Transmitter (UART) and RS-  
232 transceivers. The L222 is designed to operate with a  
single 3.3V or 5V power supply. The L222 is fully compliant  
with EIA/TIA-232-F Standards from a +3.3V to +5.5V power  
supply. The device operates at 1 Mbps data rate with worst  
case 3K ohms load. Both RS-232 driver outputs and  
receiver inputs can operate in harsh electrical environments  
of +/-15V without damage and can survive multiple +/-15kV  
ESD on the RS-232 lines, while maintaining RS-232 output  
levels.  
Industrial Peripheral Interfaces  
Point-of-Sale (POS) Systems  
FEATURES  
•
Meets true EIA/TIA-232-F Standards from +3.3V to +5.5V  
operation  
•
•
•
Up to 1 Mbps data transmission rate  
The L222 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  
L222 is in the Active mode where the UART and RS-232  
transceiver function normally. In the Partial Sleep mode, the  
internal crystal oscillator of the UART or charge pump of the  
RS-232 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-232 receivers  
remain active in any of these four modes.  
45us sleep mode exit (charge pump to full power)  
ESD protection for RS-232 I/O pins at  
■
■
■
+/-15kV - Human Body Model  
+/-15kV - 61000-4-2, Air-Gap Discharge  
+/- 8kV - 61000-4-2, Contact 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  
F
IGURE 1. BLOCK DIAGRAM  
VREF+  
*5 V Tolerant  
Inputs  
Crystal  
Osc/Buffer  
PwrSave  
A2:A0  
BRG  
Charge Pump  
VREF-  
64 Byte  
TX & RX  
FIFO  
TXA  
RXA  
TXDA  
D7:D0  
RXDA  
5K  
IOR#  
RTSA#  
RTSA  
DTRA#  
CTSA#  
DTRA  
CTSA  
IOW# (R/W#)  
CSA# (CS#)  
CSB#  
5K  
5K  
Modem  
I/Os  
DSRA#  
RIA#  
DSRA  
RIA  
5K  
5K  
CDA#  
CDA  
INTA (IRQ#)  
INTB  
Channel A  
Ch A Transceiver  
CDB#  
RIB#  
CDB  
RIB  
DSRB#  
CTSB#  
DTRB#  
RTSB#  
TXB  
DSRB  
CTSB  
DTRB  
RTSB  
TXDB  
TXB  
RESET (RESET#)  
I/M#  
Channel B  
Channel B  
Transceiver  
RXB  
RXDB  
RXB  
(See Figure 6)  
RXBSEL  
UART  
RS-232 Transceiver  
XR19L222  
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (510) 668-7000 • FAX (510) 668-7017 • www.exar.com  
 
 
 
 
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