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MAX3223 Dataheets PDF



Part Number MAX3223
Manufacturers Maxim
Logo Maxim
Description +3V to +5.5V RS-232 Transceivers
Datasheet MAX3223 DatasheetMAX3223 Datasheet (PDF)

Click here for production status of specific part numbers. MAX3221/MAX3223/ MAX3243 +3V to +5.5V RS-232 Transceivers with AutoShutdown General Description The MAX3221/MAX3223/MAX3243 achieve 1µA supply current with Maxim’s revolutionary AutoShutdown™ feature. When the MAX3221/MAX3223/MAX3243 do not sense a valid signal level on their receiver inputs, the onboard power supply and drivers shut down. This occurs if the RS-232 cable is disconnected or if the transmitters of the connected periphera.

  MAX3223   MAX3223


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Click here for production status of specific part numbers. MAX3221/MAX3223/ MAX3243 +3V to +5.5V RS-232 Transceivers with AutoShutdown General Description The MAX3221/MAX3223/MAX3243 achieve 1µA supply current with Maxim’s revolutionary AutoShutdown™ feature. When the MAX3221/MAX3223/MAX3243 do not sense a valid signal level on their receiver inputs, the onboard power supply and drivers shut down. This occurs if the RS-232 cable is disconnected or if the transmitters of the connected peripheral are turned off. The system turns on again when a valid level is applied to any RS-232 receiver input. The MAX3221/MAX3223/MAX3243 require only 0.1µF capacitors in 3.3V operation, and can operate from input voltages ranging from +3.0V to +5.5V. A proprietary, high-efficiency, dual charge-pump power supply and a low-dropout transmitter combine to deliver true RS-232 performance from a single +3.0V to +5.5V supply. The MAX3221 is a 1-driver/1-receiver 16-pin SSOP version of the 20-pin 2-driver/2-receiver MAX3223. The MAX3243 is a 3-driver/5-receiver with a complementary always-active receiver for external monitoring in a variety of 28 pin packages. See Order Information table for package offerings. Applications ●● Battery-Powered Equipment ●● Hand-Held Equipment ●● Peripherals ●● Portable Diagnostics Equipment Selector Guide PART Tx Rx VCC RANGE (V) AutoShutdown MAX3221 1 1 3.0 to 5.5 Yes MAX3223 2 2 3.0 to 5.5 Yes MAX3243 3 5 3.0 to 5.5 Yes Pin Configurations appear at end of data sheet. Typical Operating Circuits appear at end of data sheet. AutoShutdown and UCSP are trademarks of Maxim Integrated Products, Inc. Benefits and Features ●● Integrated Charge Pump Circuitry Simplifies Power Requirements • Eliminates the Need for a ±12 Supply • Operation From a Single +3.3V or +5V Supply ●● 1µA Supply Current in Shutdown Mode Saves Power • AutoShutdown Feature is Enabled After No Activity on Receiver Inputs for 30µs • Software Control Option for Shutdown Ordering Information PART TEMP RANGE PIN-PACKAGE MAX3221CAE 0°C to +70°C 16 SSOP MAX3221CUE† 0°C to +70°C 16 TSSOP MAX3221EAE -40°C to +85°C 16 SSOP MAX3221EUE† -40°C to +85°C 16 TSSOP MAX3223CPP 0°C to +70°C 20 Plastic DIP MAX3223CAP 0°C to +70°C 20 SSOP MAX3223CUP 0°C to +70°C 20 TSSOP MAX3223EPP -40°C to +85°C 20 Plastic DIP MAX3223EAP -40°C to +85°C 20 SSOP MAX3223EUP -40°C to +85°C 20 TSSOP MAX3243CWI 0°C to +70°C 28 Wide SO MAX3243CAI 0°C to +70°C 28 SSOP MAX3243CUI 0°C to +70°C 28 TSSOP MAX3243EWI -40°C to +85°C 28 Wide SO MAX3243EAI -40°C to +85°C 28 SSOP MAX3243EUI -40°C to +85°C 28 TSSOP †Future product—contact factory for availability. 19-0306; Rev 10; 5/19 MAX3221/MAX3223/ MAX3243 +3V to +5.5V RS-232 Transceivers with AutoShutdown Absolute Maximum Ratings VCC...........................................................................-0.3V to +6V V+ (Note 1)...............................................................-0.3V to +7V V- (Note 1)...............................................................+0.3V to -7V V+ + |V-| (Note 1).................................................................+13V Input Voltages T_IN, FORCEOFF, FORCEON, EN (MAX3223)... -0.3V to +6V R_IN.................................................................................±25V Output Voltages T_OUT...........................................................................±13.2V R_OUT, INVALID................................... -0.3V to (VCC + 0.3V) Short-Circuit Duration T_OUT.................................................................... Continuous Continuous Power Dissipation (TA = +70°C) 16-Pin SSOP (derate 7.14mW/°C above +70°C).........571mW 16-Pin TSSOP (derate 6.70mW/°C above +70°C).......533mW 20-Pin Plastic DIP (derate 11.11mW/°C above +70°C)..............................889mW 20-Pin SSOP (derate 8.00mW/°C above +70°C).........640mW 20-Pin TSSOP DIP (derate 7.00mW/°C above +70°C)...............................559mW 28-Pin Wide SO (derate 12.50mW/°C above +70°C).........1W 28-Pin SSOP (derate 9.52mW/°C above +70°C).........762mW 28-Pin TSSOP (derate 8.70mW/°C above +70°C).......696mW Operating Temperature Ranges MAX32_ _C_ _....................................................0°C to +70°C MAX32_ _E_ _................................................ -40°C to +85°C Storage Temperature Range............................. -65°C to +150°C Lead Temperature (soldering, 10s).................................. +300°C Note 1: V+ and V- can have maximum magnitudes of 7V, but their absolute difference cannot exceed 13V. 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 spe.


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