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ICL3238E

更新时间： 2024-09-19 14:57:43
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瑞萨 - RENESAS /
页数 文件大小 规格书
24页 383K
描述
±15kV ESD Protected, +3V to +5.5V, 1μA, 250kbps, RS-232 Transceivers With Enhanced Automatic Powerdown

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ICL3238E 数据手册

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Datasheet  
ICL3238E  
±15kV ESD Protected, +3V to +5.5V, 10nA, 250kbps, RS-232 Transceiver with  
Enhanced Automatic Powerdown  
The ICL3238E contains 3.0V to 5.5V powered  
RS-232 transmitters/receivers that meet ElA/TIA-232  
Features  
• Pb-free (RoHS compliant)  
and V.28/V.24 specifications, even at V = 3.0V. It  
CC  
• ESD protection for RS-232 I/O pins to ±15kV  
(IEC61000)  
provides ±15kV ESD protection (IEC61000-4-2 Air  
Gap and Human Body Model) on transmitter outputs  
and receiver inputs (RS-232 pins). Targeted  
applications are cell phones, Palmtops, and data  
cables in which the low operational power  
consumption and even lower standby power  
consumption is critical. Efficient on-chip charge  
pumps coupled with manual and enhanced automatic  
powerdown functions reduce the standby supply  
current to a 10nA trickle. Small footprint packaging  
and the use of small, low value capacitors ensure  
board space savings. Data rates greater than  
250kbps are ensured at worst-case load conditions  
and provide compatibility with popular PC  
• Active feedback resistors on T and logic inputs  
X
• Manual and enhanced automatic powerdown  
features  
• Pin compatible replacement for MAX3238E,  
MAX3238, and SP3238E  
• Meets EIA/TIA-232 and V.28/V.24 specifications  
at 3V  
• RS-232 compatible outputs at 2.7V supply  
• Flow through pinout  
• Latch-up free  
communication software.  
• On-chip voltage converters require only four  
external capacitors  
The ICL3238E is a five driver, three receiver device  
optimized for DCE applications with full hardware  
handshaking. It includes a noninverting, always-active  
receiver for RING INDICATOR monitoring.  
• Receiver and transmitter hysteresis for improved  
noise immunity  
• Guaranteed minimum data rate: 250kbps  
• Guaranteed minimum slew rate: 6V/µs  
The ICL3238E features an enhanced automatic  
powerdown function that powers down the on-chip  
power-supply and driver circuits. Automatic  
powerdown occurs when all receiver and transmitter  
inputs detect no signal transitions for a period of 30s.  
The ICL3238E automatically powers back up  
whenever it senses a transition on any transmitter or  
receiver input.  
• Wide power supply range: Single +3V to +5.5V  
• Low supply current in powerdown state: 10nA  
Applications  
• Any system requiring RS-232 communication ports  
The transmitter and logic inputs include active  
feedback resistors that retain the input state when  
driven to a valid logic level.  
○ Battery powered, hand-held, and portable  
equipment  
○ Data cradles  
Table 1 summarizes the features of the ICL3238E.  
Application Note AN9863 summarizes the features of  
each device in the ICL32xxE 3V RS-232 family.  
○ Modems, printers, and other peripherals  
○ Cellular/mobile phones and data cables  
Related Literature  
For a full list of related documents, visit our website:  
• ICL3238E device page  
Table 1.  
Summary of Features  
Enhanced  
Automatic  
No. of No. of  
No. of Monitor  
Data Rate  
(kbps)  
Rx. Enable  
Function?  
Ready  
Output?  
Manual  
Powerdown?  
Powerdown  
Function?  
Part Number  
Tx.  
Rx.  
Rx. (ROUTB  
)
ICL3238E  
5
3
1
250  
No  
No  
Yes  
Yes  
FN6012 Rev.4.00  
Apr.26.19  
Page 1 of 24  
1234567...24

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 		+-15kV ESD Protected, +3V to +5.5V, 10nA, 250kbps, RS-232 Transceiver with Enhanced Automa
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 		+-15kV ESD Protected, +3V to +5.5V, 10nA, 250kbps, RS-232 Transceiver with Enhanced Automa
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