MAX3243 Series

+3V to +5.5V RS-232 Transceivers with AutoShutdown

Catalog(27 parts)

Part	Mounting Type	Operating Temperature▲▼	Operating Temperature▲▼	Supplier Device Package	Number of Drivers/Receivers▲▼	Number of Drivers/Receivers▲▼	Voltage - Supply▲▼	Voltage - Supply▲▼	Protocol	Receiver Hysteresis▲▼	Duplex	Type	Package / Case	Package / Case▲▼	Package / Case▲▼	Data Rate▲▼	Package / Case▲▼
Texas Instruments MAX3243IPWRG4 3/5 Transceiver Full RS232 28-TSSOP	Surface Mount	-40 °C	85 °C	28-TSSOP	5 ul	3 ul	3 V	5.5 V	RS232	0.5 V	Full	Transceiver	28-TSSOP	0.004399999976158142 m	0.004394200164824724 m	256000 bit/s
Texas Instruments MAX3243EIDWR 3/5 Transceiver Full RS232 28-SOIC	Surface Mount	-40 °C	85 °C	28-SOIC	5 ul	3 ul	3 V	5.5 V	RS232	0.5 V	Full	Transceiver	28-SOIC	0.007493000011891127 m		512000 bit/s	0.007499999832361937 m
Texas Instruments MAX3243EIDBR 3/5 Transceiver Full RS232 28-SSOP	Surface Mount	-40 °C	85 °C	28-SSOP	5 ul	3 ul	3 V	5.5 V	RS232	0.5 V	Full	Transceiver	28-SSOP		0.0052999998442828655 m, 0.005308600142598152 m	512000 bit/s
Texas Instruments MAX3243CDBRE4 3/5 Transceiver Full RS232 28-SSOP	Surface Mount	0 °C	70 °C	28-SSOP	5 ul	3 ul	3 V	5.5 V	RS232	0.30000001192092896 V	Full	Transceiver	28-SSOP		0.0052999998442828655 m, 0.005308600142598152 m	256000 bit/s
Texas Instruments MAX3243ECPW 3/5 Transceiver Full RS232 28-TSSOP	Surface Mount	0 °C	70 °C	28-TSSOP	5 ul	3 ul	3 V	5.5 V	RS232	0.5 V	Full	Transceiver	28-TSSOP	0.004399999976158142 m	0.004394200164824724 m	512000 bit/s
Texas Instruments MAX3243EIDW 3/5 Transceiver Full RS232 28-SOIC	Surface Mount	-40 °C	85 °C	28-SOIC	5 ul	3 ul	3 V	5.5 V	RS232	0.5 V	Full	Transceiver	28-SOIC	0.007493000011891127 m		512000 bit/s	0.007499999832361937 m
Texas Instruments MAX3243IPWR 3/5 Transceiver Full RS232 28-TSSOP	Surface Mount	-40 °C	85 °C	28-TSSOP	5 ul	3 ul	3 V	5.5 V	RS232	0.5 V	Full	Transceiver	28-TSSOP	0.004399999976158142 m	0.004394200164824724 m	256000 bit/s
Texas Instruments MAX3243IDB 3/5 Transceiver Full RS232 28-SSOP	Surface Mount	-40 °C	85 °C	28-SSOP	5 ul	3 ul	3 V	5.5 V	RS232	0.5 V	Full	Transceiver	28-SSOP		0.0052999998442828655 m, 0.005308600142598152 m	256000 bit/s
Texas Instruments MAX3243ECPWE4 3/5 Transceiver Full RS232 28-TSSOP	Surface Mount	0 °C	70 °C	28-TSSOP	5 ul	3 ul	3 V	5.5 V	RS232	0.5 V	Full	Transceiver	28-TSSOP	0.004399999976158142 m	0.004394200164824724 m	512000 bit/s
Texas Instruments MAX3243ECPWG4 3/5 Transceiver Full RS232 28-TSSOP	Surface Mount	0 °C	70 °C	28-TSSOP	5 ul	3 ul	3 V	5.5 V	RS232	0.5 V	Full	Transceiver	28-TSSOP	0.004399999976158142 m	0.004394200164824724 m	512000 bit/s
Texas Instruments MAX3243EIPWRG4 3/5 Transceiver Full RS232 28-TSSOP	Surface Mount	-40 °C	85 °C	28-TSSOP	5 ul	3 ul	3 V	5.5 V	RS232	0.5 V	Full	Transceiver	28-TSSOP	0.004399999976158142 m	0.004394200164824724 m	512000 bit/s
Texas Instruments MAX3243IPWRE4 3/5 Transceiver Full RS232 28-TSSOP	Surface Mount	-40 °C	85 °C	28-TSSOP	5 ul	3 ul	3 V	5.5 V	RS232	0.5 V	Full	Transceiver	28-TSSOP	0.004399999976158142 m	0.004394200164824724 m	256000 bit/s
Texas Instruments MAX3243CPW 3/5 Transceiver Full RS232 28-TSSOP	Surface Mount	0 °C	70 °C	28-TSSOP	5 ul	3 ul	3 V	5.5 V	RS232	0.5 V	Full	Transceiver	28-TSSOP	0.004399999976158142 m	0.004394200164824724 m	256000 bit/s
Texas Instruments MAX3243MDBREP 3/5 Transceiver Full RS232 28-SSOP	Surface Mount	-55 °C	125 °C	28-SSOP	5 ul	3 ul	3 V	5.5 V	RS232	0.5 V	Full	Transceiver	28-SSOP		0.0052999998442828655 m, 0.005308600142598152 m	256000 bit/s
Texas Instruments MAX3243IDWR 3/5 Transceiver Full RS232 28-SOIC	Surface Mount	-40 °C	85 °C	28-SOIC	5 ul	3 ul	3 V	5.5 V	RS232	0.5 V	Full	Transceiver	28-SOIC	0.007493000011891127 m		256000 bit/s	0.007499999832361937 m
Texas Instruments MAX3243CDBRG4 3/5 Transceiver Full RS232 28-SSOP	Surface Mount	0 °C	70 °C	28-SSOP	5 ul	3 ul	3 V	5.5 V	RS232	0.30000001192092896 V	Full	Transceiver	28-SSOP		0.0052999998442828655 m, 0.005308600142598152 m	256000 bit/s
Texas Instruments MAX3243EIPWRE4 3/5 Transceiver Full RS232 28-TSSOP	Surface Mount	-40 °C	85 °C	28-TSSOP	5 ul	3 ul	3 V	5.5 V	RS232	0.5 V	Full	Transceiver	28-TSSOP	0.004399999976158142 m	0.004394200164824724 m	512000 bit/s
Texas Instruments MAX3243IDW 3/5 Transceiver Full RS232 28-SOIC	Surface Mount	-40 °C	85 °C	28-SOIC	5 ul	3 ul	3 V	5.5 V	RS232	0.5 V	Full	Transceiver	28-SOIC	0.007493000011891127 m		256000 bit/s	0.007499999832361937 m
Texas Instruments MAX3243CDB 3/5 Transceiver Full RS232 28-SSOP	Surface Mount	0 °C	70 °C	28-SSOP	5 ul	3 ul	3 V	5.5 V	RS232	0.30000001192092896 V	Full	Transceiver	28-SSOP		0.0052999998442828655 m, 0.005308600142598152 m	256000 bit/s
Texas Instruments MAX3243ECRHBR 3/5 Transceiver Full RS232 32-VQFN (5x5)	Surface Mount	0 °C	70 °C	32-VQFN (5x5)	5 ul	3 ul	3 V	5.5 V	RS232	0.5 V	Full	Transceiver	32-VFQFN Exposed Pad			512000 bit/s
Texas Instruments MAX3243CDBR 3/5 Transceiver Full RS232 28-SSOP	Surface Mount	0 °C	70 °C	28-SSOP	5 ul	3 ul	3 V	5.5 V	RS232	0.30000001192092896 V	Full	Transceiver	28-SSOP		0.0052999998442828655 m, 0.005308600142598152 m	256000 bit/s
Texas Instruments MAX3243EIDWRG4 3/5 Transceiver Full RS232 28-SOIC	Surface Mount	-40 °C	85 °C	28-SOIC	5 ul	3 ul	3 V	5.5 V	RS232	0.5 V	Full	Transceiver	28-SOIC	0.007493000011891127 m		512000 bit/s	0.007499999832361937 m
Texas Instruments MAX3243EIDB 3/5 Transceiver Full RS232 28-SSOP	Surface Mount	-40 °C	85 °C	28-SSOP	5 ul	3 ul	3 V	5.5 V	RS232	0.5 V	Full	Transceiver	28-SSOP		0.0052999998442828655 m, 0.005308600142598152 m	512000 bit/s
Texas Instruments MAX3243EIPW 3/5 Transceiver Full RS232 28-TSSOP	Surface Mount	-40 °C	85 °C	28-TSSOP	5 ul	3 ul	3 V	5.5 V	RS232	0.5 V	Full	Transceiver	28-TSSOP	0.004399999976158142 m	0.004394200164824724 m	512000 bit/s
Texas Instruments MAX3243ECDWR 3/5 Transceiver Full RS232 28-SOIC	Surface Mount	0 °C	70 °C	28-SOIC	5 ul	3 ul	3 V	5.5 V	RS232	0.5 V	Full	Transceiver	28-SOIC	0.007493000011891127 m		512000 bit/s	0.007499999832361937 m
Texas Instruments MAX3243CDWRG4 3/5 Transceiver Full RS232 28-SOIC	Surface Mount	0 °C	70 °C	28-SOIC	5 ul	3 ul	3 V	5.5 V	RS232	0.30000001192092896 V	Full	Transceiver	28-SOIC	0.007493000011891127 m		256000 bit/s	0.007499999832361937 m
Texas Instruments MAX3243EIPWE4 3/5 Transceiver Full RS232 28-TSSOP	Surface Mount	-40 °C	85 °C	28-TSSOP	5 ul	3 ul	3 V	5.5 V	RS232	0.5 V	Full	Transceiver	28-TSSOP	0.004399999976158142 m	0.004394200164824724 m	512000 bit/s

Key Features

• Integrated Charge Pump Circuitry Simplifies Power RequirementsEliminates the Need for a ±12V SupplyOperation From a Single +3.3V or +5V Supply

• Eliminates the Need for a ±12V Supply

• Operation From a Single +3.3V or +5V Supply

• 1µA Supply Current in Shutdown Mode Saves PowerAutoShutdown Feature is Enabled After No Activity on Receiver Inputs for 30μsSoftware Control Option for Shutdown

• AutoShutdown Feature is Enabled After No Activity on Receiver Inputs for 30μs

• Software Control Option for Shutdown

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 on-board 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. Please see order information table for package offerings.ApplicationsBattery-Powered EquipmentHand-Held EquipmentPeripheralsPortable Diagnostics Equipment