MAX3221-EP Series

3- to 5.5-V single channel 250kbps RS-232 line driver/receiver with +/-15-kV IEC-ESD protection

Catalog

3- to 5.5-V single channel 250kbps RS-232 line driver/receiver with +/-15-kV IEC-ESD protection

Part	Data Rate	Operating Temperature [Max]	Operating Temperature [Min]	Receiver Hysteresis	Voltage - Supply [Max]	Voltage - Supply [Min]	Type	Supplier Device Package	Mounting Type	Package / Case	Package / Case [custom]	Package / Case [custom]	Protocol	Duplex	Package / Case [x]	Package / Case [y]
Texas Instruments MAX3221EIDBG4	250 KBd	85 °C	-40 °C	500 mV	5.5 V	3 V	Transceiver	16-SSOP	Surface Mount	16-SSOP	0.209 in	5.3 mm	RS232	Full
Texas Instruments MAX3221CDB	250 KBd	70 °C	0 °C	500 mV	5.5 V	3 V	Transceiver	16-SSOP	Surface Mount	16-SSOP	0.209 in	5.3 mm	RS232	Full
Texas Instruments MAX3221ECPWE4	250 KBd	70 °C	0 °C	500 mV	5.5 V	3 V	Transceiver	16-TSSOP	Surface Mount	16-TSSOP			RS232	Full	0.173 in	4.4 mm
Texas Instruments MAX3221ECPWR	250 KBd	70 °C	0 °C	500 mV	5.5 V	3 V	Transceiver	16-TSSOP	Surface Mount	16-TSSOP			RS232	Full	0.173 in	4.4 mm
Texas Instruments MAX3221CDBRG4	250 KBd	70 °C	0 °C	500 mV	5.5 V	3 V	Transceiver	16-SSOP	Surface Mount	16-SSOP	0.209 in	5.3 mm	RS232	Full
Texas Instruments MAX3221MDBREP	250 KBd	125 °C	-55 °C	500 mV	5.5 V	3 V	Transceiver	16-SSOP	Surface Mount	16-SSOP	0.209 in	5.3 mm	RS232	Full
Texas Instruments MAX3221EIPWE4	250 KBd	85 °C	-40 °C	500 mV	5.5 V	3 V	Transceiver	16-TSSOP	Surface Mount	16-TSSOP			RS232	Full	0.173 in	4.4 mm
Texas Instruments MAX3221ECDB	250 KBd	70 °C	0 °C	500 mV	5.5 V	3 V	Transceiver	16-SSOP	Surface Mount	16-SSOP	0.209 in	5.3 mm	RS232	Full
Texas Instruments MAX3221EIPWR	250 KBd	85 °C	-40 °C	500 mV	5.5 V	3 V	Transceiver	16-TSSOP	Surface Mount	16-TSSOP			RS232	Full	0.173 in	4.4 mm
Texas Instruments MAX3221CPWR	250 KBd	70 °C	0 °C	500 mV	5.5 V	3 V	Transceiver	16-TSSOP	Surface Mount	16-TSSOP			RS232	Full	0.173 in	4.4 mm

Catalog

3- to 5.5-V single channel 250kbps RS-232 line driver/receiver with +/-15-kV IEC-ESD protection

Key Features

• Controlled BaselineOne Assembly/Test Site, One Fabrication SiteExtended Temperature Performance of -55°C to 125°CEnhanced Diminishing Manufacturing Sources (DMS) SupportEnhanced Product-Change NotificationQualification Pedigree(1)RS-232 Bus-Pin ESD Protection Exceeds ±15 kV Using Human-Body Model (HBM)Meets or Exceeds the Requirements of TIA/EIA-232-F and ITU v.28 StandardsOperates With 3-V to 5.5-V VCCSupplyOperates up to 250 kbit/sOne Driver and One ReceiverLow Standby Current . . . 1 µA TypicalExternal Capacitors . . . 4 × 0.1 µFAccepts 5-V Logic Input With 3.3-V SupplyAlternative High-Speed Pin-Compatible Device (1 Mbit/s)SNx5C3221Auto-Powerdown Feature Automatically Disables Drivers for Power SavingsAPPLICATIONSBattery-Powered, Hand-Held, and Portable EquipmentPDAs and Palmtop PCsNotebooks, Subnotebooks, and LaptopsDigital CamerasMobile Phones and Wireless Devices(1)Component qualification in accordance with JEDEC and industry standards to ensure reliable operation over an extended temperature range. This includes, but is not limited to, Highly Accelerated Stress Test (HAST) or biased 85/85, temperature cycle, autoclave or unbiased HAST, electromigration, bond intermetallic life, and mold compound life. Such qualification testing should not be viewed as justifying use of this component beyond specified performance and environmental limits.Controlled BaselineOne Assembly/Test Site, One Fabrication SiteExtended Temperature Performance of -55°C to 125°CEnhanced Diminishing Manufacturing Sources (DMS) SupportEnhanced Product-Change NotificationQualification Pedigree(1)RS-232 Bus-Pin ESD Protection Exceeds ±15 kV Using Human-Body Model (HBM)Meets or Exceeds the Requirements of TIA/EIA-232-F and ITU v.28 StandardsOperates With 3-V to 5.5-V VCCSupplyOperates up to 250 kbit/sOne Driver and One ReceiverLow Standby Current . . . 1 µA TypicalExternal Capacitors . . . 4 × 0.1 µFAccepts 5-V Logic Input With 3.3-V SupplyAlternative High-Speed Pin-Compatible Device (1 Mbit/s)SNx5C3221Auto-Powerdown Feature Automatically Disables Drivers for Power SavingsAPPLICATIONSBattery-Powered, Hand-Held, and Portable EquipmentPDAs and Palmtop PCsNotebooks, Subnotebooks, and LaptopsDigital CamerasMobile Phones and Wireless Devices(1)Component qualification in accordance with JEDEC and industry standards to ensure reliable operation over an extended temperature range. This includes, but is not limited to, Highly Accelerated Stress Test (HAST) or biased 85/85, temperature cycle, autoclave or unbiased HAST, electromigration, bond intermetallic life, and mold compound life. Such qualification testing should not be viewed as justifying use of this component beyond specified performance and environmental limits.

Description

The MAX3221 consists of one line driver, one line receiver, and a dual charge-pump circuit with ±15-kV ESD protection pin to pin (serial-port connection pins, including GND). The device meets the requirements of TIA/EIA-232-F and provides the electrical interface between an asynchronous communication controller and the serial-port connector. The charge pump and four small external capacitors allow operation from a single 3-V to 5.5-V supply. These devices operate at data signaling rates up to 250 kbit/s and a maximum of 30-V/µs driver output slew rate. Flexible control options for power management are available when the serial port is inactive. The auto-powerdown feature functions when FORCEON is low andFORCEOFFis high. During this mode of operation, if the device does not sense a valid RS-232 signal on the receiver input, the driver output is disabled. IfFORCEOFFis set low and enable (EN) is high, both the driver and receiver are shut off, and the supply current is reduced to 1 µA. Disconnecting the serial port or turning off the peripheral drivers causes the auto-powerdown condition to occur. Auto-powerdown can be disabled when FORCEON andFORCEOFFare high. With auto-powerdown enabled, the device is activated automatically when a valid signal is applied to the receiver input. TheINVALIDoutput notifies the user if an RS-232 signal is present at the receiver input.INVALIDis high (valid data) if the receiver input voltage is greater than 2.7 V or less than -2.7 V, or has been between -0.3 V and 0.3 V for less than 30 µs.INVALIDis low (invalid data) if the receiver input voltage is between -0.3 V and 0.3 V for more than 30 µs. The MAX3221 consists of one line driver, one line receiver, and a dual charge-pump circuit with ±15-kV ESD protection pin to pin (serial-port connection pins, including GND). The device meets the requirements of TIA/EIA-232-F and provides the electrical interface between an asynchronous communication controller and the serial-port connector. The charge pump and four small external capacitors allow operation from a single 3-V to 5.5-V supply. These devices operate at data signaling rates up to 250 kbit/s and a maximum of 30-V/µs driver output slew rate. Flexible control options for power management are available when the serial port is inactive. The auto-powerdown feature functions when FORCEON is low andFORCEOFFis high. During this mode of operation, if the device does not sense a valid RS-232 signal on the receiver input, the driver output is disabled. IfFORCEOFFis set low and enable (EN) is high, both the driver and receiver are shut off, and the supply current is reduced to 1 µA. Disconnecting the serial port or turning off the peripheral drivers causes the auto-powerdown condition to occur. Auto-powerdown can be disabled when FORCEON andFORCEOFFare high. With auto-powerdown enabled, the device is activated automatically when a valid signal is applied to the receiver input. TheINVALIDoutput notifies the user if an RS-232 signal is present at the receiver input.INVALIDis high (valid data) if the receiver input voltage is greater than 2.7 V or less than -2.7 V, or has been between -0.3 V and 0.3 V for less than 30 µs.INVALIDis low (invalid data) if the receiver input voltage is between -0.3 V and 0.3 V for more than 30 µs.