MAX232中文资料RS-232 应用 pdf 封装图 管脚说明

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Value & Three- Active in Data Rate Number (V) Drivers/Rx Ext. Caps (μF) State SHDN (kbps) Features MAX220 +5 2/2 4 0.047/0.33 No — 120 Ultra-low-power, industry-standard pinout MAX222 +5 2/2 4 0.1 Yes — 200 Low-power shutdown MAX223 (MAX213) +5 4/5 4 1.0 (0.1) Yes ✔ 120 MAX241 and receivers active in shutdown MAX225 +5 5/5 0 — Yes ✔ 120 Available in SO MAX230 (MAX200) +5 5/0 4 1.0 (0.1) Yes — 120 5 drivers with shutdown MAX231 (MAX201) +5 and 2/2 2 1.0 (0.1) No — 120 Standard +5/+12V or battery supplies; +7.5 to +13.2 same functions as MAX232 MAX232 (MAX202) +5 2/2 4 1.0 (0.1) No — 120 (64) Industry standard MAX232A +5 2/2 4 0.1 No — 200 Higher slew rate, small caps MAX233 (MAX203) +5 2/2 0 — No — 120 No external caps MAX233A +5 2/2 0 — No — 200 No external caps, high slew rate MAX234 (MAX204) +5 4/0 4 1.0 (0.1) No — 120 Replaces 1488 MAX235 (MAX205) +5 5/5 0 — Yes — 120 No external caps MAX236 (MAX206) +5 4/3 4 1.0 (0.1) Yes — 120 Shutdown, three state MAX237 (MAX207) +5 5/3 4 1.0 (0.1) No — 120 Complements IBM PC serial port MAX238 (MAX208) +5 4/4 4 1.0 (0.1) No — 120 Replaces 1488 and 1489 MAX239 (MAX209) +5 and 3/5 2 1.0 (0.1) No — 120 Standard +5/+12V or battery supplies; +7.5 to +13.2 single-package solution for IBM PC serial port MAX240 +5 5/5 4 1.0 Yes — 120 DIP or flatpack package MAX241 (MAX211) +5 4/5 4 1.0 (0.1) Yes — 120 Complete IBM PC serial port MAX242 +5 2/2 4 0.1 Yes ✔ 200 Separate shutdown and enable MAX243 +5 2/2 4 0.1 No — 200 Open-line detection simplifies cabling MAX244 +5 8/10 4 1.0 No — 120 High slew rate MAX245 +5 8/10 0 — Yes ✔ 120 High slew rate, int. caps, two shutdown modes MAX246 +5 8/10 0 — Yes ✔ 120 High slew rate, int. caps, three shutdown modes MAX247 +5 8/9 0 — Yes ✔ 120 High slew rate, int. caps, nine operating modes MAX248 +5 8/8 4 1.0 Yes ✔ 120 High slew rate, selective half-chip enables MAX249 +5 6/10 4 1.0 Yes ✔ 120 Available in quad flatpack package _____________________________ ڊ޶ဳྲ ࢾ৪ቧᇦ)ኚ*Ᏼၫ௣ᓾ೯ࡼᔢઁ৊߲ă *ൡຢਖৃLj༿Ꭷ৔ޣೊᇹă AutoShutdownࠧ UCSPก Maxim Integrated Products, Inc.وඨӶă ۾ᆪဵNbyjnᑵါ፞ᆪᓾ೯ࡼፉᆪLjNbyjnݙ࣪डፉᒦࡀᏴࡼތፊ૞ᎅࠥޘညࡼࡇᇙঌᐊă༿ᓖፀፉᆪᒦభถࡀᏴᆪᔊᔝᒅ૞ डፉࡇᇙLjྙኊཀྵཱྀྀੜࠤᎫࡼᓰཀྵቶLj༿ݬఠNbyjnᄋ৙ࡼ፞ᆪۈᓾ೯ă Ⴣན඾ॅዹອਜ਼ᔢቤۈࡼၫ௣ᓾ೯Lj༿षᆰNbyjnࡼᓍ጑ǖxxx/nbyjn.jd/dpn/doă 17ic?????:www.17ic.com ???????????????????，???，???，????? 17ic?????????????????、??? ?????????????????www.17ic.com w w w .1 7i c .c o m M AX 22 0– M AX 24 9 +5Vޥ٫Ăۂ໼لRS-232 ഝڑಹ/ेฏಹ 2 _______________________________________________________________________________________ ABSOLUTE MAXIMUM RATINGS—MAX220/222/232A/233A/242/243 ELECTRICAL CHARACTERISTICS—MAX220/222/232A/233A/242/243 (VCC = +5V ±10%, C1–C4 = 0.1μF‚ MAX220, C1 = 0.047μF, C2–C4 = 0.33μF, TA = TMIN to TMAX‚ unless otherwise noted.) Note 1: For the MAX220, V+ and V- can have a maximum magnitude of 7V, but their absolute difference cannot exceed 13V. Note 2: Input voltage measured with TOUT in high-impedance state, SHDN or VCC = 0V. Note 3: Maximum reflow temperature for the MAX233A is +225°C. Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings 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. Supply Voltage (VCC) ...............................................-0.3V to +6V V+ (Note 1) ..................................................(VCC - 0.3V) to +14V V- (Note 1) .............................................................+0.3V to +14V Input Voltages TIN..............................................................-0.3V to (VCC - 0.3V) RIN (Except MAX220) ........................................................±30V RIN (MAX220).....................................................................±25V TOUT (Except MAX220) (Note 2) .......................................±15V TOUT (MAX220)...............................................................±13.2V Output Voltages TOUT...................................................................................±15V ROUT.........................................................-0.3V to (VCC + 0.3V) Driver/Receiver Output Short Circuited to GND.........Continuous Continuous Power Dissipation (TA = +70°C) 16-Pin Plastic DIP (derate 10.53mW/°C above +70°C) .842mW 18-Pin Plastic DIP (derate 11.11mW/°C above +70°C)..889mW 20-Pin Plastic DIP (derate 8.00mW/°C above +70°C) ..440mW 16-Pin Narrow SO (derate 8.70mW/°C above +70°C) ...696mW 16-Pin Wide SO (derate 9.52mW/°C above +70°C)......762mW 18-Pin Wide SO (derate 9.52mW/°C above +70°C)......762mW 20-Pin Wide SO (derate 10.00mW/°C above +70°C)....800mW 20-Pin SSOP (derate 8.00mW/°C above +70°C) ..........640mW 16-Pin CERDIP (derate 10.00mW/°C above +70°C).....800mW 18-Pin CERDIP (derate 10.53mW/°C above +70°C).....842mW Operating Temperature Ranges MAX2_ _AC_ _, MAX2_ _C_ _.............................0°C to +70°C MAX2_ _AE_ _, MAX2_ _E_ _ ..........................-40°C to +85°C MAX2_ _AM_ _, MAX2_ _M_ _.......................-55°C to +125°C Storage Temperature Range .............................-65°C to +160°C Lead Temperature (soldering, 10s) (Note 3) ...................+300°C PARAMETER CONDITIONS MIN TYP MAX UNITS RS-232 TRANSMITTERS Output Voltage Swing All transmitter outputs loaded with 3kΩ to GND ±5 ±8 V Input Logic Threshold Low 1.4 0.8 V All devices except MAX220 2 1.4 Input Logic Threshold High MAX220: VCC = 5.0V 2.4 V All except MAX220, normal operation 5 40 Logic Pullup/lnput Current SHDN = 0V, MAX222/MAX242, shutdown, MAX220 ±0.01 ±1 μA VCC = 5.5V, SHDN = 0V, VOUT = ±15V, MAX222/MAX242 ±0.01 ±10 VOUT = ±15V ±0.01 ±10 Output Leakage Current VCC = SHDN = 0V MAX220, VOUT = ±12V ±25 μA Data Rate 200 116 kbps Transmitter Output Resistance VCC = V+ = V- = 0V, VOUT = ±2V 300 10M Ω VOUT = 0V ±7 ±22 Output Short-Circuit Current VOUT = 0V MAX220 ±60 mA RS-232 RECEIVERS ±30 RS-232 Input Voltage Operating Range MAX220 ±25 V All except MAX243 R2IN 0.8 1.3 RS-232 Input Threshold Low VCC = 5V MAX243 R2IN (Note 4) -3 V All except MAX243 R2IN 1.8 2.4 RS-232 Input Threshold High VCC = 5V MAX243 R2IN (Note 4) -0.5 -0.1 V 17ic?????:www.17ic.com ???????????????????，???，???，????? 17ic?????????????????、??? ?????????????????www.17ic.com w w w .1 7i c .c o m M AX220–M AX249 +5Vޥ٫Ăۂ໼لRS-232 ഝڑಹ/ेฏಹ _______________________________________________________________________________________ 3 Note 4: MAX243 R2OUT is guaranteed to be low when R2IN is ≥ 0V or is floating. ELECTRICAL CHARACTERISTICS—MAX220/222/232A/233A/242/243 (continued) (VCC = +5V ±10%, C1–C4 = 0.1μF‚ MAX220, C1 = 0.047μF, C2–C4 = 0.33μF, TA = TMIN to TMAX‚ unless otherwise noted.) PARAMETER CONDITIONS MIN TYP MAX UNITS All except MAX220/MAX243, VCC = 5V, no hysteresis in SHDN 0.2 0.5 1.0 MAX220 0.3 RS-232 Input Hysteresis MAX243 1 V 3 5 7 RS-232 Input Resistance TA = +25°C (MAX220) 3 5 7 kΩ IOUT = 3.2mA 0.2 0.4 TTL/CMOS Output Voltage Low IOUT = 1.6mA (MAX220) 0.4 V TTL/CMOS Output Voltage High IOUT = -1.0mA 3.5 VCC - 0.2 V Sourcing VOUT = GND -2 -10 TTL/CMOS Output Short-Circuit Current Sinking VOUT = VCC 10 30 mA TTL/CMOS Output Leakage Current SHDN = VCC or EN = VCC (SHDN = 0V for MAX222), 0V ≤ VOUT ≤ VCC ±0.05 ±10 μA EN Input Threshold Low MAX242 1.4 0.8 V EN Input Threshold High MAX242 2.0 1.4 V Operating Supply Voltage 4.5 5.5 V MAX220 0.5 2 No load MAX222/MAX232A/MAX233A/ MAX242/MAX243 4 10 MAX220 12 VCC Supply Current (SHDN = VCC), Figures 5, 6, 11, 19 3kΩ load both inputs MAX222/MAX232A/MAX233A/ MAX242/MAX243 15 μA TA = +25°C 0.1 10 TA = 0°C to +70°C 2 50 TA = -40°C to +85°C 2 50 Shutdown Supply Current MAX222/ MAX242 TA = -55°C to +125°C 35 100 μA SHDN Input Leakage Current MAX222/MAX242 ±1 μA SHDN Threshold Low MAX222/MAX242 1.4 0.8 V SHDN Threshold High MAX222/MAX242 2.0 1.4 V MAX222/MAX232A/MAX233/ MAX242/MAX243 6 12 30 Transition Slew Rate CL = 50pF to 2500pF, RL = 3kΩ to 7kΩ, VCC = 5V, TA = +25°C, measured from +3V to -3V or -3V MAX220 1.5 3 30.0 V/μs MAX222/MAX232A/MAX233/ MAX242/MAX243 1.3 3.5 tPHLT MAX220 4 10 MAX222/MAX232A/MAX233/ MAX242/MAX243 1.5 3.5 Transmitter Propagation Delay TLL to RS-232 (Normal Operation), Figure 1 tPLHT MAX220 5 10 μs 17ic?????:www.17ic.com ???????????????????，???，???，????? 17ic?????????????????、??? ?????????????????www.17ic.com w w w .1 7i c .c o m M AX 22 0– M AX 24 9 +5Vޥ٫Ăۂ໼لRS-232 ഝڑಹ/ेฏಹ 4 _______________________________________________________________________________________ ________________________________________________________________ ٨ျޠዷ໎၂ MAX220/MAX222/MAX232A/MAX233A/MAX242/MAX243 10 8 -10 0 5 15 25 OUTPUT VOLTAGE vs. LOAD CURRENT -4 -6 -8 -2 6 4 2 M AX 22 0- 01 LOAD CURRENT (mA) OU TP UT V OL TA GE (V ) 10 0 20 0.1μF EITHER V+ OR V- LOADED VCC = ±5V NO LOAD ON TRANSMITTER OUTPUTS (EXCEPT MAX220, MAX233A) V- LOADED, NO LOAD ON V+ V+ LOADED, NO LOAD ON V- 1μF 1μF0.1μF 11 10 4 0 10 40 60 AVAILABLE OUTPUT CURRENT vs. DATA RATE 6 5 7 9 8 M AX 22 0- 02 DATA RATE (kb/s) OU TP UT C UR RE NT (m A) 20 30 50 OUTPUT LOAD CURRENT FLOWS FROM V+ TO V- VCC = +5.25V ALL CAPS 1μF ALL CAPS 0.1μF VCC = +4.75V +10V -10V MAX222/MAX242 ON-TIME EXITING SHUTDOWN +5V +5V 0V 0V M AX 22 0- 03 500μs/div V+ , V - V OL TA GE (V ) 1μF CAPS V+ V+ V-V- SHDN 0.1μF CAPS 1μF CAPS 0.1μF CAPS ELECTRICAL CHARACTERISTICS—MAX220/222/232A/233A/242/243 (continued) (VCC = +5V ±10%, C1–C4 = 0.1μF‚ MAX220, C1 = 0.047μF, C2–C4 = 0.33μF, TA = TMIN to TMAX‚ unless otherwise noted.) PARAMETER CONDITIONS MIN TYP MAX UNITS MAX222/MAX232A/MAX233/ MAX242/MAX243 0.5 1 tPHLR MAX220 0.6 3 MAX222/MAX232A/MAX233/ MAX242/MAX243 0.6 1 Receiver Propagation Delay RS-232 to TLL (Normal Operation), Figure 2 tPLHR MAX220 0.8 3 μs tPHLS MAX242 0.5 10 Receiver Propagation Delay RS-232 to TLL (Shutdown), Figure 2 tPHLS MAX242 2.5 10 μs Receiver-Output Enable Time, Figure 3 tER MAX242 125 500 ns Receiver-Output Disable Time, Figure 3 tDR MAX242 160 500 ns Transmitter-Output Enable Time (SHDN Goes High), Figure 4 tET MAX222/MAX242, 0.1μF caps (includes charge-pump start-up) 250 μs Transmitter-Output Disable Time (SHDN Goes Low), Figure 4 tDT MAX222/MAX242, 0.1μF caps 600 ns MAX222/MAX232A/MAX233/ MAX242/MAX243 300 Transmitter + to - Propagation Delay Difference (Normal Operation) tPHLT - tPLHT MAX220 2000 ns MAX222/MAX232A/MAX233/ MAX242/MAX243 100Receiver + to - Propagation Delay Difference (Normal Operation) tPHLR - tPLHR MAX220 225 ns 17ic?????:www.17ic.com ???????????????????，???，???，????? 17ic?????????????????、??? ?????????????????www.17ic.com w w w .1 7i c .c o m M AX220–M AX249 +5Vޥ٫Ăۂ໼لRS-232 ഝڑಹ/ेฏಹ _______________________________________________________________________________________ 5 VCC...........................................................................-0.3V to +6V V+................................................................(VCC - 0.3V) to +14V V- ............................................................................+0.3V to -14V Input Voltages TIN ............................................................-0.3V to (VCC + 0.3V) RIN......................................................................................±30V Output Voltages TOUT ...................................................(V+ + 0.3V) to (V- - 0.3V) ROUT.........................................................-0.3V to (VCC + 0.3V) Short-Circuit Duration, TOUT ......................................Continuous Continuous Power Dissipation (TA = +70°C) 14-Pin Plastic DIP (derate 10.00mW/°C above +70°C)....800mW 16-Pin Plastic DIP (derate 10.53mW/°C above +70°C)....842mW 20-Pin Plastic DIP (derate 11.11mW/°C above +70°C)....889mW 24-Pin Narrow Plastic DIP (derate 13.33mW/°C above +70°C) ..........1.07W 24-Pin Plastic DIP (derate 9.09mW/°C above +70°C)......500mW 16-Pin Wide SO (derate 9.52mW/°C above +70°C).........762mW 20-Pin Wide SO (derate 10.00mW/°C above +70°C).......800mW 24-Pin Wide SO (derate 11.76mW/°C above +70°C).......941mW 28-Pin Wide SO (derate 12.50mW/°C above +70°C) .............1W 44-Pin Plastic FP (derate 11.11mW/°C above +70°C) .....889mW 14-Pin CERDIP (derate 9.09mW/°C above +70°C) ..........727mW 16-Pin CERDIP (derate 10.00mW/°C above +70°C) ........800mW 20-Pin CERDIP (derate 11.11mW/°C above +70°C) ........889mW 24-Pin Narrow CERDIP (derate 12.50mW/°C above +70°C) ..............1W 24-Pin Sidebraze (derate 20.0mW/°C above +70°C)..........1.6W 28-Pin SSOP (derate 9.52mW/°C above +70°C).............762mW Operating Temperature Ranges MAX2 _ _ C _ _......................................................0°C to +70°C MAX2 _ _ E _ _ ...................................................-40°C to +85°C MAX2 _ _ M _ _ ................................................-55°C to +125°C Storage Temperature Range .............................-65°C to +160°C Lead Temperature (soldering, 10s) (Note 4) ...................+300°C ABSOLUTE MAXIMUM RATINGS—MAX223/MAX230–MAX241 ELECTRICAL CHARACTERISTICS—MAX223/MAX230–MAX241 (MAX223/230/232/234/236/237/238/240/241, VCC = +5V ±10%; MAX233/MAX235, VCC = 5V ±5%‚ C1–C4 = 1.0μF; MAX231/MAX239, VCC = 5V ±10%; V+ = 7.5V to 13.2V; TA = TMIN to TMAX; unless otherwise noted.) Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings 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. CONDITIONS MIN TYP MAX UNITS Output Voltage Swing All transmitter outputs loaded with 3kΩ to ground ±5.0 ±7.3 V VCC Power-Supply Current No load, TA = +25°C 5 10 mA7 15 0.4 1 V+ Power-Supply Current 1.8 5 mA 5 15 Shutdown Supply Current TA = +25°C 15 50 VInput Logic Threshold High TIN 2.0 EN, SHDN (MAX223); EN, SHDN (MAX230/235/236/240/241) 2.4 Logic Pullup Current TIN = 0V 1.5 200 Receiver Input Voltage Operating Range -30 +30 V μA μA 1 10 VInput Logic Threshold Low TIN; 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 Note 4: Maximum reflow temperature for the MAX233/MAX235 is +225°C. 17ic?????:www.17ic.com ???????????????????，???，???，????? 17ic?????????????????、??? ?????????????????www.17ic.com w w w .1 7i c .c o m M AX 22 0– M AX 24 9 +5Vޥ٫Ăۂ໼لRS-232 ഝڑಹ/ेฏಹ 6 _______________________________________________________________________________________ mA V 0.8 1.2 PARAMETER MIN TYP MAX UNITSCONDITIONS Normal operation SHDN = 5V (MAX223) SHDN = 0V (MAX235/236/240/241) 1.7 2.4 RS-232 Input Threshold Low TA = +25°C, VCC = 5V 0.6 1.5 VRS-232 Input Threshold High TA = +25°C, VCC = 5V Shutdown (MAX223) SHDN = 0V, EN = 5V (R4IN‚ R5IN) 1.5 2.4 ELECTRICAL CHARACTERISTICS—MAX223/MAX230–MAX241 (continued) (MAX223/230/232/234/236/237/238/240/241, VCC = +5V ±10%; MAX233/MAX235, VCC = 5