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Product Detailed Parameters
- Description：IC TRANSCEIVER FULL 3/5 28TSSOP
- Mfr：Texas Instruments
- Package：Tape & Reel (TR)
- Series：-
- Type：Transceiver
- Protocol：RS232
- Number of Drivers/Receivers：3月5日
- Duplex：Full
- Data Rate：250kbps
- Voltage - Supply：3V ~ 5.5V
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：28-TSSOP (0.173", 4.40mm Width)
- Supplier Device Package：28-TSSOP
- Receiver Hysteresis：500 mV
- Grade：-
- Qualification：-
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Overview
The MAX3243IPWRE4 is a multichannel RS-232 line driver and receiver manufactured by Texas Instruments. It operates from a single 3-V to 5.5-V supply and features three drivers and five receivers for full-duplex communication. The device supports data rates up to 250 kb/s and includes an auto-powerdown mode that reduces current consumption to less than 1 µA during shutdown. It provides ±15-kV electrostatic discharge (ESD) protection on RS-232 lines per IEC 61000-4-2 standards. The component is housed in a 28-pin TSSOP package and is rated for operation over an extended temperature range of -40°C to +85°C.
Feature Summary
- Integrated ESD protection exceeding ±15 kV on all RS-232 transceiver lines
- Auto-powerdown functionality significantly lowers quiescent current consumption
- Single-supply operation compatible with 3.3-V and 5-V logic systems
Applications
- Industrial control systems requiring robust serial communication
- Portable instrumentation and battery-powered devices
- Military and aerospace avionics interfaces
Procurement Notes
Verify the suffix RE4 indicates tape-and-reel packaging when sourcing. Confirm the IP designation corresponds to the industrial temperature grade (-40°C to +85°C). Ensure compatibility with existing PCB footprints for the 28-pin TSSOP package before finalizing procurement orders.
Selection Notes
Select this component for applications requiring high ESD immunity and low power consumption. The IPWRE4 variant offers industrial temperature stability compared to commercial grades. Verify that the 250-kb/s speed meets system requirements, as higher-speed alternatives exist within the family.
Part Context
This part belongs to the MAX3243 family of multichannel RS-232 transceivers. It shares core electrical characteristics with variants like the MAX3243IDWRG4 but differs in packaging and temperature rating. The RE4 suffix specifically denotes reel packaging, distinguishing it from tube-packaged counterparts.
Replacement Considerations
The MAX3243MPWREP serves as a military-grade replacement offering extended temperature ranges. For standard industrial needs, the MAX3243IDWRG4 is a direct functional equivalent with identical pinout and specifications.
