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ICL3241 PDF预览

ICL3241

更新时间： 2024-11-06 22:48:19
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英特矽尔 - INTERSIL /
页数 文件大小 规格书
17页 175K
描述
1 Microamp Supply-Current, +3V to +5.5V, 250kbps, RS-232 Transmitters/Receivers

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ICL3241 数据手册

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ICL3221 thru ICL3243  
TM  
Data Sheet  
May 2000  
File Number 4805.2  
1 Microamp Supply-Current, +3V to +5.5V,  
250kbps, RS-232 Transmitters/Receivers  
Features  
• Drop in Replacements for MAX3221, MAX3222,  
MAX3223, MAX3232, MAX3241, MAX3243, SP3243  
The Intersil ICL32XX devices are 3.0V to 5.5V powered  
RS-232 transmitters/receivers which meet ElA/TIA-232 and  
• ICL3222 is Low Power, Pin Compatible Upgrade for 5V  
MAX242, and SP312A  
V.28/V.24 specifications, even at V  
= 3.0V. Targeted  
CC  
applications are PDAs, Palmtops, 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  
powerdown functions (except for the ICL3232), reduce the  
standby supply current to a 1µA trickle. Small footprint  
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. This  
family is fully compatible with 3.3V only systems, mixed 3.3V  
and 5.0V systems, and 5.0V only systems.  
• ICL3232 is Low Power Upgrade for HIN232/ICL232 and  
Pin Compatible Competitor Devices  
• Meets EIA/TIA-232 and V.28/V.24 Specifications at 3V  
• Latch-Up Free  
• On-Chip Voltage Converters Require Only Four External  
0.1µF Capacitors  
• Manual and Automatic Powerdown Features (Except  
ICL3232)  
• Guaranteed Mouse Driveability  
The ICL324X are 3 driver, 5 receiver devices that provide a  
complete serial port suitable for laptop or notebook  
computers. Both devices also include noninverting always-  
active receivers for “wake-up” capability.  
• Receiver Hysteresis For Improved Noise Immunity  
• Guaranteed Minimum Data Rate . . . . . . . . . . . . 250kbps  
• Guaranteed Minimum Slew Rate . . . . . . . . . . . . . . . 6V/µs  
• Wide Power Supply Range. . . . . . . . Single +3V to +5.5V  
• Low Supply Current in Powerdown State . . . . . . . . . . 1µA  
The ICL3221, ICL3223 and ICL3243, feature an automatic  
powerdown function which 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. These devices power up  
again when a valid RS-232 voltage is applied to any receiver  
input.  
Applications  
• Any System Requiring RS-232 Communication Ports  
- Battery Powered, Hand-Held, and Portable Equipment  
- Laptop Computers, Notebooks, Palmtops  
- Modems, Printers and other Peripherals  
- Digital Cameras  
Table 1 summarizes the features of the devices represented  
by this data sheet, while Application Note AN9863  
summarizes the features of each device comprising the  
ICL32XX 3V family.  
- Cellular/Mobile Phones  
TABLE 1. SUMMARY OF FEATURES  
DATA  
NO. OF  
MONITOR Rx.  
MANUAL  
POWER-  
DOWN?  
AUTOMATIC  
POWERDOWN  
FUNCTION?  
PART  
NO. OF NO.OF  
RATE  
Rx. ENABLE  
FUNCTION?  
READY  
OUTPUT?  
NUMBER  
Tx.  
Rx.  
(R  
)
(kbps)  
OUTB  
ICL3221  
ICL3222  
ICL3223  
ICL3232  
ICL3241  
ICL3243  
1
1
0
250  
YES  
YES  
YES  
NO  
NO  
NO  
NO  
NO  
NO  
NO  
YES  
YES  
YES  
NO  
YES  
NO  
2
2
0
0
0
2
1
250  
2
2
250  
YES  
NO  
2
2
250  
3
5
250  
YES  
NO  
YES  
YES  
NO  
3
5
250  
YES  
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.  
1-888-INTERSIL or 321-724-7143 | Intersil and Design is a trademark of Intersil Corporation. | Copyright © Intersil Corporation 2000  
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