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Product Detailed Parameters
- Description：IC TRANSCEIVER FULL 3/5 28SSOP
- Mfr：Texas Instruments
- Package：Tube
- 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-SSOP (0.209", 5.30mm Width)
- Supplier Device Package：28-SSOP
- Receiver Hysteresis：500 mV
- Grade：-
- Qualification：-
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Overview
The MAX3243IDB is a Texas Instruments RS-232 interface integrated circuit featuring three drivers and five receivers in an SSOP-28 package. It operates on a single 3V to 5.5V supply with a typical operating current of 1 mA. The device supports full-duplex communication at data rates up to 250 kb/s, with a propagation delay of 0.15 µs. It includes a shutdown feature for power management and provides 15 kV ESD protection. The component functions within a temperature range of -40°C to +85°C.
Feature Summary
- Integrates three independent line drivers and five receivers for multi-channel serial communication
- Includes a dedicated shutdown pin to minimize power consumption during idle periods
- Provides robust electrostatic discharge protection rated at 15 kV on all RS-232 lines
Applications
- Industrial control systems requiring reliable serial data transmission
- Portable instrumentation utilizing battery-powered 3V or 5V logic
- Communication interfaces in embedded systems needing multiple RS-232 channels
Procurement Notes
Verify the specific suffix IDB confirms the SSOP-28 package and industrial temperature grade (-40°C to +85°C). Confirm RoHS compliance status through official documentation as requirements vary by region. Check for end-of-life notices or obsolescence warnings from Texas Instruments before finalizing procurement plans.
Selection Notes
Select this component when three transmit and five receive channels are required in a compact surface-mount form factor. Ensure the application voltage stays within the 3V to 5.5V range. Consider the 250 kb/s speed limit if higher baud rates are necessary, and verify that the SSOP-28 footprint matches the PCB layout constraints.
Part Context
This part belongs to the MAX3243 family of multichannel RS-232 transceivers. It shares core electrical specifications with variants like the MAX3243IDWR but differs in packaging. The IDB designation specifically identifies the shrink small-outline package variant designed for space-constrained printed circuit board designs.
Replacement Considerations
Public confirmed substitutes include MAX3243IDWR (SOIC-28) and MAX3243MPWREP (TSSOP-28). Verify pin compatibility and thermal performance differences between packages before substitution.
