Image MAX232
型号: MAX232
厂商: Maxim Integrated Maxim Integrated
标准:
分类: 无源元器件
描述: +5V-powered, multichannel RS-232 drivers/receivers
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19-4323; Rev 9; 4/00  
+5V-Powered, Multichannel RS-232  
Drivers/Receivers  
General Description  
____________________________Features  
The MAX220–MAX249 family of line drivers/receivers is  
intended for all EIA/TIA-232E and V.28/V.24 communica-  
tions interfaces, particularly applications where ±±2V is  
not available.  
These parts are especially useful in battery-powered sys-  
tems, since their low-power shutdown mode reduces  
power dissipation to less than 5µW. The MAX225,  
MAX233, MAX235, and MAX245/MAX246/MAX247 use  
no external components and are recommended for appli-  
cations where printed circuit board space is critical.  
Superior to Bipolar  
o Operate from Single +5V Power Supply  
(+5V and +12V—MAX231/MAX239)  
o Low-Power Receive Mode in Shutdown  
(MAX223/MAX242)  
o Meet All EIA/TIA-232E and V.28 Specifications  
o Multiple Drivers and Receivers  
o 3-State Driver and Receiver Outputs  
o Open-Line Detection (MAX243)  
Ordering Information  
________________________Applications  
Portable Computers  
PART  
TEMP. RANGE  
0°C to +70°C  
PIN-PACKAGE  
±6 Plastic DIP  
±6 Narrow SO  
±6 Wide SO  
Dice*  
MAX220CPE  
MAX220CSE  
MAX220CWE  
MAX220C/D  
MAX220EPE  
MAX220ESE  
MAX220EWE  
MAX220EJE  
MAX220MJE  
Low-Power Modems  
0°C to +70°C  
0°C to +70°C  
0°C to +70°C  
Interface Translation  
Battery-Powered RS-232 Systems  
Multidrop RS-232 Networks  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-55°C to +±25°C  
±6 Plastic DIP  
±6 Narrow SO  
±6 Wide SO  
±6 CERDIP  
±6 CERDIP  
Ordering Information continued at end of data sheet.  
*Contact factory for dice specifications.  
Selection Table  
Power  
Supply  
(V)  
+5  
+5  
No. of  
RS-232  
Drivers/Rx Ext. Caps (µF)  
2/2  
2/2  
4/5  
5/5  
5/0  
2/2  
Nominal  
SHDN  
Rx  
Part  
No. of  
Cap. Value & Three- Active in Data Rate  
Number  
MAX220  
MAX222  
State  
No  
Yes  
Yes  
Yes  
Yes  
No  
SHDN  
(kbps)  
±20  
200  
±20  
±20  
±20  
±20  
Features  
4
4
4
0
4
2
4.7/±0  
0.±  
±.0 (0.±)  
±.0 (0.±)  
±.0 (0.±)  
Ultra-low-power, industry-standard pinout  
Low-power shutdown  
MAX24± and receivers active in shutdown  
Available in SO  
MAX223 (MAX2±3) +5  
MAX225 +5  
MAX230 (MAX200) +5  
5 drivers with shutdown  
MAX23± (MAX20±) +5 and  
Standard +5/+±2V or battery supplies;  
same functions as MAX232  
Industry standard  
Higher slew rate, small caps  
No external caps  
No external caps, high slew rate  
Replaces ±488  
No external caps  
Shutdown, three state  
Complements IBM PC serial port  
Replaces ±488 and ±489  
Standard +5/+±2V or battery supplies;  
single-package solution for IBM PC serial port  
DIP or flatpack package  
Complete IBM PC serial port  
Separate shutdown and enable  
Open-line detection simplifies cabling  
High slew rate  
+7.5 to +±3.2  
MAX232 (MAX202) +5  
MAX232A +5  
MAX233 (MAX203) +5  
MAX233A +5  
MAX234 (MAX204) +5  
MAX235 (MAX205) +5  
MAX236 (MAX206) +5  
MAX237 (MAX207) +5  
MAX238 (MAX208) +5  
MAX239 (MAX209) +5 and  
2/2  
2/2  
2/2  
2/2  
4/0  
5/5  
4/3  
5/3  
4/4  
3/5  
4
4
0
0
4
0
4
4
4
2
±.0 (0.±)  
0.±  
±.0 (0.±)  
±.0 (0.±)  
±.0 (0.±)  
±.0 (0.±)  
±.0 (0.±)  
No  
No  
No  
No  
No  
Yes  
Yes  
No  
No  
No  
±20 (64)  
200  
±20  
200  
±20  
±20  
±20  
±20  
±20  
±20  
+7.5 to +±3.2  
+5  
MAX24± (MAX2±±) +5  
MAX240  
5/5  
4/5  
2/2  
2/2  
8/±0  
8/±0  
8/±0  
8/9  
8/8  
6/±0  
4
4
4
4
4
0
0
0
4
4
±.0  
±.0 (0.±)  
0.±  
0.±  
±.0  
±.0  
±.0  
Yes  
Yes  
Yes  
No  
±20  
±20  
200  
200  
±20  
±20  
±20  
±20  
±20  
±20  
MAX242  
MAX243  
MAX244  
MAX245  
MAX246  
MAX247  
MAX248  
MAX249  
+5  
+5  
+5  
+5  
+5  
+5  
+5  
+5  
No  
Yes  
Yes  
Yes  
Yes  
Yes  
High slew rate, int. caps, two shutdown modes  
High slew rate, int. caps, three shutdown modes  
High slew rate, int. caps, nine operating modes  
High slew rate, selective half-chip enables  
Available in quad flatpack package  
________________________________________________________________ Maxim Integrated Products  
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.  
For small orders, phone 1-800-835-8769.  

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