MAX213ECAI+

Drivers, Receivers, Transceivers Overview

The MAX213ECAI+ is a full-duplex RS-232 transceiver from the MAX202E–MAX213E family, manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single +4.5V to +5.5V supply and integrates dual charge-pump voltage converters to generate ±10V levels without external bipolar supplies. The device features four drivers and five receivers, with two receivers (R4, R5) remaining active during shutdown for ring monitoring. It supports data rates up to 120kbps and provides ±15kV ESD protection via Human Body Model testing. The component is housed in a 28-pin SSOP package and functions within an operating temperature range of -40°C to +85°C.

Drivers, Receivers, Transceivers Feature Summary

• Integrates dual charge-pump circuitry to enable single-supply operation from +5V, eliminating the need for external bipolar power sources.
• Provides high electrostatic discharge protection rated at ±15kV using the Human Body Model on all RS-232 inputs and outputs.
• Includes two awake-in-shutdown receivers that maintain functionality during low-power shutdown mode to monitor external activity.
• Features tight receiver input thresholds that ensure compatibility with TTL/CMOS logic levels while meeting EIA/TIA-232E specifications.

Drivers, Receivers, Transceivers Applications

• Battery-powered equipment requiring low power consumption
• Hand-held devices with limited board space
• Portable diagnostics equipment

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'CAI+' corresponds to the 28-pin SSOP package and the -40°C to +85°C industrial temperature grade as defined in the official datasheet. Confirm RoHS compliance status through current manufacturer documentation, as product attributes may change over time. Ensure the ordering information matches the exact pinout and control logic polarity (Active High EN, Active Low SHDN) specified for the MAX213E variant.

Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems that require full-duplex RS-232 communication with integrated voltage conversion from a single +5V source. It is suitable for applications needing ESD protection and low-power shutdown modes where specific receivers must remain active to detect ring signals or external events. Verify that the required data rate does not exceed 120kbps under maximum capacitive load conditions.

Drivers, Receivers, Transceivers Part Context

The MAX213ECAI+ belongs to the MAX202E–MAX213E family of RS-232 transceivers designed for harsh environments. This family shares common architecture including integrated charge pumps and ESD protection structures. The MAX213E specifically distinguishes itself by offering four drivers and five receivers, with unique control logic for shutdown and enable pins compared to other family members like the MAX211E.

Drivers, Receivers, Transceivers Replacement Considerations

Direct parameter-equivalent replacements within the same family include the MAX211EEAI+ and MAX241EEAI+. Note that these alternatives have different control pin polarities and receiver counts; verify functional compatibility before substitution.

Drivers, Receivers, Transceivers FAQ

How do the control pin polarities differ for the MAX213E compared to other family members?

For the MAX213E, the Receiver Enable (EN) pin is active high, whereas it is active low for the MAX211E and MAX241E. Conversely, the Shutdown (SHDN) pin is active low for the MAX213E, but active high for the MAX211E and MAX241E.

Which receivers remain active during shutdown mode?

In shutdown mode, receivers R4 and R5 of the MAX213E remain active to monitor external activity, such as ring indicators. All other receivers (R1-R3) enter a high-impedance state.

What is the typical propagation delay for the MAX213E receivers in normal operation?

The typical receiver propagation delay for the MAX213E is 0.5μs in normal operation. In shutdown mode, the delay increases to 4μs for both rising and falling transitions.