《《元器件》MAX232ESE【GHOE]》由会员分享，可在线阅读，更多相关《《元器件》MAX232ESE【GHOE]（36页珍藏版）》请在金锄头文库上搜索。
1、General Description 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 12V is not available These parts are especially useful in battery powered sys tems since their low power shutdown mode redu
2、ces power dissipation to less than 5 W 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 Applications Portable Computers Low Power Modems Interface Translation Battery Powered RS 232 System
3、s Multidrop RS 232 Networks Features 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 Lin
4、e Detection MAX243 Ordering Information Ordering Information continued at end of data sheet Contact factory for dice specifications MAX220 MAX249 5V Powered Multichannel RS 232 Drivers Receivers Maxim Integrated Products1 Selection Table 19 4323 Rev 9 4 00 PART MAX220CPE MAX220CSE MAX220CWE0 C to 70
5、 C 0 C to 70 C 0 C to 70 C TEMP RANGEPIN PACKAGE 16 Plastic DIP 16 Narrow SO 16 Wide SO MAX220C D0 C to 70 CDice MAX220EPE MAX220ESE MAX220EWE 40 C to 85 C 40 C to 85 C 40 C to 85 C16 Plastic DIP 16 Narrow SO 16 Wide SO MAX220EJE 40 C to 85 C16 CERDIP MAX220MJE 55 C to 125 C16 CERDIP PowerNo ofNomin
6、alSHDN Rx PartSupplyRS 232No ofCap Value 7 5 to 13 2same functions as MAX232 MAX232 MAX202 52 241 0 0 1 No 120 64 Industry standard MAX232A 52 240 1No 200Higher slew rate small caps MAX233 MAX203 52 20 No 120No external caps MAX233A 52 20 No 200No external caps high slew rate MAX234 MAX204 54 041 0
7、0 1 No 120Replaces 1488 MAX235 MAX205 55 50 Yes 120No external caps MAX236 MAX206 54 341 0 0 1 Yes 120Shutdown three state MAX237 MAX207 55 341 0 0 1 No 120Complements IBM PC serial port MAX238 MAX208 54 441 0 0 1 No 120Replaces 1488 and 1489 MAX239 MAX209 5 and3 521 0 0 1 No 120Standard 5 12V or ba
8、ttery supplies 7 5 to 13 2single package solution for IBM PC serial port MAX240 55 541 0Yes 120DIP or flatpack package MAX241 MAX211 54 541 0 0 1 Yes 120Complete IBM PC serial port MAX242 52 240 1Yes 200Separate shutdown and enable MAX243 52 240 1No 200Open line detection simplifies cabling MAX244 5
9、8 1041 0No 120High slew rate MAX245 58 100 Yes 120High slew rate int caps two shutdown modes MAX246 58 100 Yes 120High slew rate int caps three shutdown modes MAX247 58 90 Yes 120High slew rate int caps nine operating modes MAX248 58 841 0Yes 120High slew rate selective half chip enables MAX249 56 1
10、041 0Yes 120Available in quad flatpack package For free samples MAX233 MAX235 VCC 5V 5 C1 C4 1 0 F MAX231 MAX239 VCC 5V 10 V 7 5V to 13 2V TA TMINto TMAX unless otherwise noted Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device These are stress ratin
11、gs only and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied Exposure to absolute maximum rating conditions for extended periods may affect device reliability CONDITIONSMINTYPMAXUNITS Output Vo
12、ltage SwingAll transmitter outputs loaded with 3k to ground 5 0 7 3V VCCPower Supply Current No load TA 25 C 510 mA715 0 41 V Power Supply Current 1 85 mA 515 Shutdown Supply CurrentTA 25 C 1550 VInput Logic Threshold High TIN2 0 EN SHDN MAX223 EN SHDN MAX230 235 236 240 241 2 4 Logic Pull Up Curren
13、tTIN 0V1 5200 Receiver Input Voltage Operating Range 3030V A A 110 VInput Logic Threshold LowTIN EN SHDN MAX233 EN SHDN MAX230 235 241 0 8 MAX231 239 MAX223 230 234 238 240 241 MAX232 233 PARAMETER MAX239 MAX230 235 236 240 241 MAX231 MAX223 mA MAX220 MAX249 5V Powered Multichannel RS 232 Drivers Re
14、ceivers 6 V 0 81 2 PARAMETERMINTYPMAXUNITSCONDITIONS Normal operation SHDN 5V MAX223 SHDN 0V MAX235 236 240 241 1 72 4 RS 232 Input Threshold Low TA 25 C VCC 5V 0 61 5 VRS 232 Input Threshold High TA 25 C VCC 5V Shutdown MAX223 SHDN 0V EN 5V R4IN R5IN 1 52 4 ELECTRICAL CHARACTERISTICS MAX223 MAX230
15、MAX241 continued MAX223 230 232 234 236 237 238 240 241 VCC 5V 10 MAX233 MAX235 VCC 5V 5 C1 C4 1 0 F MAX231 MAX239 VCC 5V 10 V 7 5V to 13 2V TA TMINto TMAX unless otherwise noted Shutdown MAX223 SHDN 0V EN 5V R4IN R5IN Normal operation SHDN 5V MAX223 SHDN 0V MAX235 236 240 241 RS 232 Input Hysteresi
16、sVCC 5V no hysteresis in shutdown0 20 51 0V RS 232 Input ResistanceTA 25 C VCC 5V357k TTL CMOS Output Voltage LowIOUT 1 6mA MAX231 232 233 IOUT 3 2mA 0 4V TTL CMOS Output Voltage HighIOUT 1mA3 5VCC 0 4V TTL CMOS Output Leakage Current 0V ROUT VCC EN 0V MAX223 EN VCC MAX235 241 0 05 10 A MAX223600 nsReceiver Output Enable Time Normal operation MAX235 236 239 240 241400 MAX223900 nsReceiver Output Disable Time Normal operation MAX235 236 239 240 241250 Normal operation0 510 s SHDN 0V MAX223 440Pro
