MAX3387E:3V, ±15kV ESD-Protected, AutoShutdown Plus RS-232 Transceiver for PDAs and Cell Phones

Separate Logic Supplies Ensure Compatibility with Mixed ASIC Logic Levels

The MAX3387E 3V powered EIA/TIA-232 and V.28/V.24 is a communications interface with low power requirements, high data-rate capabilities, and enhanced electrostatic discharge (ESD) protection. The MAX3387E has three receivers and three transmitters. All RS-232 inputs and outputs are protected to ±15kV using the IEC 1000-4-2 Air-Gap Discharge method, ±8kV using the IEC 1000-4-2 Contact Discharge method, and ±15kV using the Human Body Model. A proprietary low-dropout transmitter output stage enables true RS-232 performance from a +3.0V to +5.5V supply with a dual charge pump. The charge pump requires only four small 0.1µF capacitors for operation from a +3.3V supply. The MAX3387E is capable of running at data rates up to 250kbps while maintaining RS-232 compliant output levels. The MAX3387E has a unique VL pin that allows interoperation in mixed-logic voltage systems. Both input and output logic levels are pin programmable through the VL pin. The MAX3387E is available in a space-saving TSSOP package.

Key Features
  • VL Pin for Compatibility with Mixed-Voltage Systems
  • ±15kV ESD Protection on Rx Inputs and Tx Outputs
  • Low 300µA Supply Current
  • Guaranteed 250kbps Data Rate
  • 1µA AutoShutdown Plus™ with Receivers Active
  • Meets EIA/TIA-232 Specifications Down to 3.0V
MAX3387E: Typical Operating Circuit
MAX3387E: Typical Operating Circuit
Applications/Uses
  • Battery-Powered Applications
  • Cellular Data Cables
  • Handheld Equipment
  • PDAs and PDA Cradles
  • Peripherals
  • Subnotebook and Palmtop Computers
DataSheet
titleDownload file
MAX3387E Data SheetMAX3387E.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
MAX3387E3.3
5
332500.3Yes40.1153TSSOP/24$4.01 @1k
Quality and Environmental Data
Related Products
  • MAX3248E:+3.0V to +5.5V, 10nA, 250kbps RS-232 Transceivers with ±15kV ESD-Protected I/O and Logic Pins
  • MAX3386E:3.0V, ±15kV ESD-Protected RS-232 Transceivers for PDAs and Cell Phones
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX3387ECUGNo Longer AvailableMAX3387ECUG+TSSOP,;24 pin;52.4 mm²0°C to +70°CNo
MAX3387ECUG+ActiveTSSOP,;24 pin;52.4 mm²0°C to +70°CLead Free
MAX3387ECUG+TActiveTSSOP,;24 pin;52.4 mm²0°C to +70°CLead Free
MAX3387ECUG-TNo Longer AvailableMAX3387ECUG+TTSSOP,;24 pin;52.4 mm²0°C to +70°CNo
MAX3387EEUGNo Longer AvailableMAX3387EEUG+TSSOP,;24 pin;52.4 mm²-40°C to +85°CNo
MAX3387EEUG+ActiveTSSOP,;24 pin;52.4 mm²-40°C to +85°CLead Free
MAX3387EEUG+TActiveTSSOP,;24 pin;52.4 mm²-40°C to +85°CLead Free
MAX3387EEUG-TNo Longer AvailableMAX3387EEUG+TTSSOP,;24 pin;52.4 mm²-40°C to +85°CNo
MAX3387E.pdf MAX3387E
MAX3387E.pdf MAX3387E
MAX3387E.pdf MAX3387E
Reduce the Chances of Human Error: Part 2, Super Amps and Filters for Analog Interface MAX5492
Oops...Practical ESD Protection vs. Foolhardy Placebos MAX13362
Selecting and using RS-232 Interface Parts for Your Power Supply Voltages MAX3387E
Design Considerations for Data-Lump Cables MAX3387E
ESD Protection for I/O Ports MAX491E
Maxim Leads the Way in ESD Protection MAX491E
MAX3387E.pdf MAX3387E
MAX3387E.pdf MAX3387E