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ISL3243EIRZ-T

更新时间： 2024-02-07 14:40:06
品牌 Logo 应用领域
英特矽尔 - INTERSIL /
页数 文件大小 规格书
16页 549K
描述
QFN Packaged, ±15kV ESD Protected, +2.7V to +3.6V, 250kbps, RS-232 Transmitters/Receivers with Separate Logic Supply Pin

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ISL3243EIRZ-T 技术参数

生命周期：Active包装说明：,
Reach Compliance Code：compliant风险等级：5.69
接口集成电路类型：LINE TRANSCEIVER

ISL3243EIRZ-T 数据手册

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ISL3241E, ISL3243E  
®
Data Sheet  
May 13, 2010  
FN6768.1  
QFN Packaged, ±15kV ESD Protected,  
+2.7V to +3.6V, 250kbps, RS-232  
Transmitters/Receivers with Separate  
Logic Supply Pin  
Features  
• V Pin for Compatibility in Mixed Voltage Systems  
L
Adjusts Logic Output Levels and Input Thresholds for  
Compatibility with Lower Supply Voltage Logic  
The Intersil ISL324xE devices are 2.7V to 3.6V powered  
RS-232 transmitters/receivers which meet ElA/TIA-232 and  
• Parameters Specified for 10% Tolerance Supplies and Full  
Industrial Temp Range  
V.28/V.24 specifications, even at V  
= 3.0V. Additionally,  
CC  
• Pb-free Small QFN (5mmx5mm) Package is 60% Smaller  
than a 28 Lead TSSOP  
they provide ±15kV ESD protection (IEC61000-4-2 Air Gap  
and Human Body Model) on transmitter outputs and receiver  
inputs (RS-232 pins). Targeted applications are POS  
systems, and notebook and laptop computers where the low  
operational, and even lower standby, power consumption is  
critical. Efficient on-chip charge pumps, coupled with manual  
and automatic power-down functions, reduce the standby  
supply current to a 0.5µA trickle. Tiny 5mmx5mm Quad Flat  
No-Lead (QFN) packaging and the use of small, low value  
capacitors ensure board space savings as well. Data rates  
greater than 250kbps are guaranteed at worst case load  
conditions.  
• ESD Protection for RS-232 I/O Pins to ±15kV (IEC61000)  
• Meets EIA/TIA-232 and V.28/V.24 Specifications at 3V  
• RS-232 Compatible with V  
CC  
= 2.7V  
• On-Chip Voltage Converters Require Only Four External  
0.1µF Capacitors  
• Manual and Automatic Power-down Features  
• Receiver Hysteresis for Improved Noise Immunity  
• Guaranteed Minimum Data Rate . . . . . . . . . . . . . 250kbps  
• Low Supply Current in Power-down State . . . . . . . . 0.5µA  
• Pb-Free (RoHS compliant)  
ISL324xE are 3 driver, 5 receiver devices that, coupled with  
the 5x5 QFN package, provide the industry’s smallest,  
lowest power complete serial port. The 5x5 QFN requires  
60% less board area than a 28 Ld TSSOP, and is nearly  
20% thinner. These devices also include a noninverting  
always-active receiver for “wake-up” capability.  
Applications  
• Any Space Constrained System Requiring RS-232 Ports  
- Battery Powered, Hand-Held, and Portable Equipment  
- POS Systems and Scanners  
The ISL3243E features an automatic powerdown function  
that powers down the on-chip power supply and driver  
circuits. This occurs when an attached peripheral device is  
shut off or the RS-232 cable is removed, conserving system  
power automatically without changes to the hardware or  
operating system. It powers up again when a valid RS-232  
voltage is applied to any receiver input.  
- Laptop Computers, Notebooks  
- GPS Receivers  
• Mixed Voltage Serial Ports  
Related Literature  
• Technical Brief TB363 “Guidelines for Handling and  
Processing Moisture Sensitive Surface Mount Devices  
The ISL324xE feature a V pin that adjusts the logic pin (see  
L
“Pin Descriptions” on page 2) output levels and input  
• ”Technical Brief TB379 “Thermal Characterization of  
Packages for ICs”  
thresholds to values compatible with the V  
external logic (e.g., a UART).  
powering the  
CC  
• Technical Brief TB389 “PCB Land Pattern Design and  
Surface Mount Guidelines for QFN Packages”  
Table 1 summarizes the features of the ISL324xE.  
TABLE 1. SUMMARY OF FEATURES  
LOGIC  
NO. OF  
DATA  
RATE  
(kbps)  
MANUAL  
POWER- POWERDOWN  
DOWN?  
YES  
AUTOMATIC  
NO. OF NO.OF SUPPLY (V ) MONITOR Rx.  
Rx. ENABLE  
FUNCTION? Pb-FREE?  
L
PART NUMBER  
ISL3241E  
Tx.  
3
Rx.  
5
PIN?  
YES  
YES  
(R  
)
FUNCTION?  
NO  
OUTB  
2
250  
250  
YES  
NO  
YES  
YES  
ISL3243E  
3
5
1
YES  
YES  
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.  
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.  
Copyright Intersil Americas Inc. 2008, 2010. All Rights Reserved  
1
All other trademarks mentioned are the property of their respective owners.  
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