MAX3232 in MAX232 / MAX3232 RS-232 Family
The MAX3232 family consists of dual-channel RS-232 line drivers and receivers designed for battery-powered and portable applications. Produced by manufacturers like Texas Instruments and Analog Devices, these transceivers operate from a single 3.0V to 5.5V supply, making them ideal for interfacing legacy serial hardware with modern low-voltage microcontrollers. The architecture utilizes a proprietary low-dropout transmitter output stage and a dual charge pump to maintain true RS-232 voltage levels while minimizing power consumption and external component footprint.
Variants in This Sub-Family
Comparing specs that differ across variants.
| Part Number | Package | Temp Range | Stock |
|---|---|---|---|
| MAX3232ECDR (Texas Instruments) | SOIC-16 | 0degC ~ 70degC | 3,779 |
| MAX3232ECPWR (Texas Instruments) | TSSOP-16 | 0degC ~ 70degC | 7,480 |
| MAX3232CPWR (Texas Instruments) | TSSOP-16 | 0degC ~ 70degC | 32,860 |
| MAX3232EIDWR (Texas Instruments) | SOIC-16 | -40degC ~ 85degC | 8,287 |
Variants within the MAX3232 sub-family primarily differ based on ESD protection levels, temperature ratings, and package types. 'E' suffix versions, such as the MAX3232EIDWR, offer enhanced 15kV HBM ESD protection for harsher environments. Commercial (C) and Industrial (I) temperature grades are available across various footprints, including space-saving TSSOP (PW) and standard SOIC (D or DW) packages, allowing engineers to balance board density against thermal and environmental requirements.
