MAX3222E:±15kV ESD-Protected, Down to 10nA, 3.0V to 5.5V, Up to 1Mbps, True RS-232 Transceivers

The MAX3222E/MAX3232E/MAX3237E/MAX3241E/MAX3246E +3.0V-powered EIA/TIA-232 and V.28/V.24 communications interface devices feature low power consumption, high data-rate capabilities, and enhanced electrostatic-discharge (ESD) protection. The enhanced ESD structure protects all transmitter outputs and receiver inputs to ±15kV using IEC 1000-4-2 Air-Gap Discharge, ±8kV using IEC 1000-4-2 Contact Discharge (±9kV for MAX3246E), and ±15kV using the Human Body Model. The logic and receiver I/O pins of the MAX3237E are protected to the above standards, while the transmitter output pins are protected to ±15kV using the Human Body Model. A proprietary low-dropout transmitter output stage delivers true RS-232 performance from a +3.0V to +5.5V power supply, using an internal dual charge pump. The charge pump requires only four small 0.1µF capacitors for operation from a +3.3V supply. Each device guarantees operation at data rates of 250kbps while maintaining RS-232 output levels. The MAX3237E guarantees operation at 250kbps in the normal operating mode and 1Mbps in the MegaBaud™ operating mode, while maintaining RS-232-compliant output levels. The MAX3222E/MAX3232E have two receivers and two transmitters. The MAX3222E features a 1µA shutdown mode that reduces power consumption in battery-powered portable systems. The MAX3222E receivers remain active in shutdown mode, allowing monitoring of external devices while consuming only 1µA of supply current. The MAX3222E and MAX3232E are pin, package, and functionally compatible with the industry-standard MAX242 and MAX232, respectively. The MAX3241E/MAX3246E are complete serial ports (three drivers/five receivers) designed for notebook and subnotebook computers. The MAX3237E (five drivers/three receivers) is ideal for peripheral applications that require fast data transfer. These devices feature a shutdown mode in which all receivers remain active, while consuming only 1µA (MAX3241E/MAX3246E) or 10nA (MAX3237E). The MAX3222E, MAX3232E, and MAX3241E are available in space-saving SO, SSOP, TQFN and TSSOP packages. The MAX3237E is offered in an SSOP package. The MAX3246E is offered in the ultra-small 6 x 6 UCSP™ package.

Key Features
  • For Space-Constrained Applications
    • MAX3228E/MAX3229E: ±15kV ESD-Protected, +2.5V to +5.5V, RS-232 Transceivers in UCSP
  • For Low-Voltage or Data Cable Applications
    • MAX3380E/MAX3381E: +2.35V to +5.5V, 1µA, 2Tx/2Rx, RS-232 Transceivers with ±15kV ESD-Protected I/O and Logic Pins
MAX3222E, MAX3232E, MAX3237E, MAX3241E, MAX3246E: Typical Operating Circuit
MAX3222E, MAX3232E, MAX3237E, MAX3241E, MAX3246E: Typical Operating Circuit
Applications/Uses
  • Battery-Powered Equipment
  • Cell Phone Data Cables
  • Cell Phones/Smartphones
  • Notebook, Subnotebook, and Palmtop Computers
  • Printers
  • XDSL Modems
DataSheet
titleDownload file
MAX3222E-MAX3246E Data SheetMAX3222E-MAX3246E.pdf
Parametrics
Part NumberVSUPPLY
(V)
TxRxData Rate
(kbps)
ICC
(mA)
Internal Charge PumpExt. CapsCap. Value
(µF)
ESD Protect.
(±kV)
Rx Active in ShutdnPackage/PinsBudgetary
Price
mintypnomSee Notes
MAX3222E3.3
5
222500.3Yes40.1152PDIP(N)/18
SOIC(W)/18
SSOP/20
TQFN/20
TSSOP/20
$2.95 @1k
MAX3232E222500PDIP(N)/16
SOIC(W)/16
SSOP/16
TQFN/16
TSSOP/16
TSSOP/20
$2.95 @1k
MAX3237E5310003SSOP/28$2.25 @1k
MAX3241E352505QFN/32
SOIC(W)/28
SSOP/28
TQFN/32
TSSOP/28
$4.96 @1k
Design kits & evaluation modules
Quality and Environmental Data
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX3222EC/DNo Longer AvailableDICE SALES,;NA pin;DICE;0°C to +70°CSee data sheet
MAX3222ECAPNo Longer AvailableMAX3222ECAP+SSOP,;20 pin;57.9 mm²0°C to +70°CNo
MAX3222ECAP+ActiveSSOP,;20 pin;57.9 mm²0°C to +70°CLead Free
MAX3222ECAP+TActiveSSOP,;20 pin;57.9 mm²0°C to +70°CLead Free
MAX3222ECAP-TNo Longer AvailableMAX3222ECAP+TSSOP,;20 pin;57.9 mm²0°C to +70°CNo
MAX3222ECPNNo Longer AvailableMAX3222ECPN+PDIP(N),;18 pin;192 mm²0°C to +70°CNo
MAX3222ECPN+ActivePDIP(N),;18 pin;192 mm²0°C to +70°CLead Free
MAX3222ECTPNo Longer AvailableMAX3222ECTP+TQFN,;20 pin;26 mm²0°C to +70°CNo
MAX3222ECTP+ActiveTQFN,;20 pin;26 mm²0°C to +70°CLead Free
MAX3222ECTP+TActiveTQFN,;20 pin;26 mm²0°C to +70°CLead Free
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX3222ECTP-TNo Longer AvailableMAX3222ECTP+TQFN;20 pin0°C to +70°CSee data sheet
MAX3222ECUPNo Longer AvailableMAX3222ECUP+TSSOP,;20 pin;45.2 mm²0°C to +70°CNo
MAX3222ECUP+ActiveTSSOP,;20 pin;45.2 mm²0°C to +70°CLead Free
MAX3222ECUP+G071No Longer AvailableTSSOP,;20 pin;45.2 mm²0°C to +70°CLead Free
MAX3222ECUP+TActiveTSSOP,;20 pin;45.2 mm²0°C to +70°CLead Free
MAX3222ECUP-TNo Longer AvailableMAX3222ECUP+TTSSOP,;20 pin;45.2 mm²0°C to +70°CNo
MAX3222ECWNNo Longer AvailableMAX3222ECWN+SOIC(W),;18 pin;125.1 mm²0°C to +70°CNo
MAX3222ECWN+ActiveSOIC(W),;18 pin;125.1 mm²0°C to +70°CLead Free
MAX3222ECWN+TActiveSOIC(W),;18 pin;125.1 mm²0°C to +70°CLead Free
MAX3222ECWN-TNo Longer AvailableMAX3222ECWN+TSOIC(W),;18 pin;125.1 mm²0°C to +70°CNo
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX3222EEAPNo Longer AvailableMAX3222EEAP+SSOP,;20 pin;57.9 mm²-40°C to +85°CNo
MAX3222EEAP+ActiveSSOP,;20 pin;57.9 mm²-40°C to +85°CLead Free
MAX3222EEAP+TActiveSSOP,;20 pin;57.9 mm²-40°C to +85°CLead Free
MAX3222EEAP-TNo Longer AvailableMAX3222EEAP+TSSOP;20 pin-40°C to +85°CSee data sheet
MAX3222EEPNNo Longer AvailableMAX3222EEPN+PDIP(N),;18 pin;192 mm²-40°C to +85°CNo
MAX3222EEPN+ActivePDIP(N),;18 pin;192 mm²-40°C to +85°CLead Free
MAX3222EETPNo Longer AvailableMAX3222EETP+TQFN,;20 pin;26 mm²-40°C to +85°CNo
MAX3222EETP+ActiveTQFN,;20 pin;26 mm²-40°C to +85°CLead Free
MAX3222EETP+TActiveTQFN,;20 pin;26 mm²-40°C to +85°CLead Free
MAX3222EETP-TNo Longer AvailableMAX3222EETP+TQFN;20 pin-40°C to +85°CSee data sheet
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX3222EEUPNo Longer AvailableMAX3222EEUP+TSSOP,;20 pin;45.2 mm²-40°C to +85°CNo
MAX3222EEUP+ActiveTSSOP,;20 pin;45.2 mm²-40°C to +85°CLead Free
MAX3222EEUP+G071No Longer AvailableTSSOP,;20 pin;45.2 mm²-40°C to +85°CLead Free
MAX3222EEUP+G1ZActiveTSSOP,;20 pin;45.2 mm²-40°C to +85°CLead Free
MAX3222EEUP+TActiveTSSOP,;20 pin;45.2 mm²-40°C to +85°CLead Free
MAX3222EEUP+TG1ZActiveTSSOP,;20 pin;45.2 mm²-40°C to +85°CLead Free
MAX3222EEUP-TNo Longer AvailableMAX3222EEUP+TTSSOP,;20 pin;45.2 mm²-40°C to +85°CNo
MAX3222EEUP/V+ActiveTSSOP,;20 pin;45.2 mm²-40°C to +85°CLead Free
MAX3222EEUP/V+TActiveTSSOP,;20 pin;45.2 mm²-40°C to +85°CLead Free
MAX3222EEWNNo Longer AvailableMAX3222EEWN+SOIC(W),;18 pin;125.1 mm²-40°C to +85°CNo
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX3222EEWN+ActiveSOIC(W),;18 pin;125.1 mm²-40°C to +85°CLead Free
MAX3222EEWN+TActiveSOIC(W),;18 pin;125.1 mm²-40°C to +85°CLead Free
MAX3222EEWN-TNo Longer AvailableMAX3222EEWN+TW.SO;18 pin-40°C to +85°CSee data sheet
MAX3222E-MAX3246E.pdf MAX3241E
MAX3222E-MAX3246E_cn.pdf MAX3241E
Determining Clock Accuracy Requirements for UART Communications MAX3206E
Selecting and using RS-232 Interface Parts for Your Power Supply Voltages MAX3387E
Design Considerations for Data-Lump Cables MAX3387E
MAX3222E.pdf MAX3222E
MAX3222E-MAX3246E_cn.pdf MAX3246E