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MAX3388E

Maxim
Part Number MAX3388E
Manufacturer Maxim
Description ESD-Protected RS-232Transceivers
Published Jun 13, 2005
Detailed Description 19-1845; Rev 1; 9/01 2.5V, ±15kV ESD-Protected RS-232 Transceivers for PDAs and Cell Phones General Description The MAX...
Datasheet PDF File MAX3388E PDF File

MAX3388E
MAX3388E

Overview
19-1845; Rev 1; 9/01 2.
5V, ±15kV ESD-Protected RS-232 Transceivers for PDAs and Cell Phones General Description The MAX3388E/MAX3389E are 2.
5V-powered EIA/TIA232 and V.
28/V.
24 communications interfaces with low power requirements, high data-rate capabilities, and enhanced electrostatic discharge (ESD) protection.
The MAX3388E/MAX3389E have two 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.
In addition to the traditional RS-232 I/O, these devices have dedicated logic-level I/O pins for additional device-todevice handshaking.
During shutdown the logic-level I/O pins are active for the MAX3389E.
An internal 62Ω switch is provided to switch power to external circuitry or modules.
A proprietary low-dropout transmitter output stage enables RS-232 compatible performance from a +2.
35V to +3.
0V supply with a dual charge pump.
The charge pump requires only four small 0.
1µF capacitors for operation from a +2.
5V supply.
The MAX3388E/MAX3389E are capable of running at data rates up to 460kbps while maintaining RS-232-compatible output levels.
The MAX3388E/MAX3389E have 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 MAX3388E/MAX3389E are available in a space-saving TSSOP package.
Features o VL Pin for Compatibility with Mixed-Voltage Systems o Additional I/O for Hot-Sync Applications o ±15kV ESD Protection on Rx Inputs, Tx Outputs, LIN, and SWIN o Low 300µA Supply Current o Guaranteed 460kbps Data Rate o 1µA Low-Power Shutdown o Integrated Switch for Powering Remote Circuitry o Flow-Through Pinout o LOUT Active During Shutdown (MAX3389E) MAX3388E/MAX3389E Applications Subnotebook/Palmtop Computers PDAs and PDA Cradles Cell Phone Data Cables Battery-Powered Equipment Hand-Held Equipment Periph...


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