MAX13235EETP+

Drivers, Receivers, Transceivers Overview

The MAX13235EETP+ is a dual-channel RS-232 transceiver from the MAX1323x family, manufactured by Analog Devices Inc./Maxim Integrated. It supports data rates up to 3Mbps and operates on a +3V to +5.5V supply voltage with a separate logic supply (VL) ranging from 1.62V to VCC. The device features AutoShutdown Plus technology, reducing supply current to 1µA when inputs are inactive for over 30 seconds. It includes integrated charge pumps requiring four external 0.1µF capacitors for 3.3V operation. ESD protection is rated at ±15kV HBM. The component is housed in a 20-pin TQFN-EP package and operates within a temperature range of -40°C to +85°C.

Drivers, Receivers, Transceivers Feature Summary

• AutoShutdown Plus functionality automatically reduces power consumption by shutting down internal circuitry during periods of inactivity or cable disconnection.
• Integrated low-voltage logic interface allows direct connection to ASICs and microcontrollers operating at various logic levels without additional level shifters.
• Built-in dual charge-pump circuitry generates required RS-232 voltages using only four small external capacitors, minimizing board space requirements.

Drivers, Receivers, Transceivers Applications

• Telematics systems
• GPS navigation units
• Industrial control equipment
• Point-of-sale (POS) terminals

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to ensure correct package type and RoHS compliance status. Confirm that the exposed pad (EP) pin is correctly connected to ground in the PCB layout to ensure proper thermal dissipation and electrical performance. Cross-reference the datasheet revision date to confirm compatibility with current design specifications.

Drivers, Receivers, Transceivers Selection Notes

Select this component when a dual-channel RS-232 interface is required with high-speed data transmission capabilities up to 3Mbps. It is suitable for designs needing low-power standby modes via AutoShutdown Plus and robust ESD protection for portable or industrial environments. Ensure the system logic voltage falls within the specified VL range for proper signal thresholding.

Drivers, Receivers, Transceivers Part Context

This part belongs to the MAX13234E–MAX13237E family of 3Mbps RS-232 transceivers. The MAX13235E variant specifically provides two drivers and two receivers, distinguishing it from the single-channel MAX13236E/MAX13237E models. The 'E' suffix indicates an extended temperature range, while 'T' denotes tape-and-reel packaging.

Drivers, Receivers, Transceivers Replacement Considerations

The MAX13234EETP+ serves as a lower-speed alternative within the same package if 250kbps is sufficient. For single-channel applications, the MAX13237EETE+ offers similar performance in a smaller footprint. Verify pinout compatibility before substituting with other Maxim RS-232 devices.