MAX232 / MAX3232 RS-232 Family (15 parts in our catalog)
Maxim/Analog Devices MAX232 (5V) and MAX3232 (3V/5V) RS-232 transceivers. The standard chips for legacy serial-port interfacing on embedded designs.
Sub-families
| Sub-family | Variants | Core | Max Speed | Features |
|---|---|---|---|---|
| GENERAL PURPOSE | ||||
| MAX232CPE | 1 | CMOS dual transceiver | 120 kbps | HV LP |
| MAX3232EIDR | 1 | CMOS dual transceiver | 250 kbps | LV HS LP AUTO |
| MAX232 | 2 | CMOS dual transceiver | 120 kbps | HV 5V |
| HIGH SPEED | ||||
| MAX3232EPE | 1 | CMOS Dual Transceiver | 1 Mbps | LP HS LV |
| LOW VOLTAGE MAINSTREAM | ||||
| MAX3232 | 5 | CMOS Dual Transceiver | 250 kbps | LV LP HS AUTO |
| LOW VOLTAGE HIGH SPEED | ||||
| MAX3232CPE | 1 | CMOS Dual RS-232 | 1 Mbps | LP LV HS ESD |
| LOW VOLTAGE GENERAL PURPOSE | ||||
| MAX3232ESE | 1 | CMOS Dual Transceiver | 1 Mbps | LP LV HS |
| HIGH PERFORMANCE ROBUST | ||||
| MAX3232EEUE | 1 | CMOS Dual Transceiver | 1 Mbps | LP HS LV ESD |
| HIGH SPEED INDUSTRIAL | ||||
| MAX3232EUE | 1 | CMOS Dual Transceiver | 1 Mbps | LP HS LV ESD |
| INDUSTRIAL GRADE GENERAL PURPOSE | ||||
| MAX3232EESA | 1 | CMOS dual transceiver | 250 kbps | LP HS LV AUTO |
Popular Variants
Top variants from across the family, with specs that differentiate them.
| Part Number | Sub-family | Data Rate | Package | Voltage | Receiver Hysteresis | Temp Range | Stock |
|---|---|---|---|---|---|---|---|
| MAX232DR | MAX232 | 120K | SOIC-16 | 4.5V | 500 mV | 0degC ~ 70degC | 36,336 |
| MAX232CPE+ | MAX232CPE | 120K | DIP-16 | 4.5V | 500 mV | 0degC ~ 70degC | 4,307 |
| MAX3232EIDR | MAX3232EIDR | 250k | SOIC-16 | 3V | 300 mV | -40degC ~ 85degC | 7,000 |
| MAX3232ECDR | MAX3232 | 250k | SOIC-16 | 3V | 300 mV | 0degC ~ 70degC | 3,779 |
| MAX3232ECPWR | MAX3232 | 250k | TSSOP-16 | 3V | 300 mV | 0degC ~ 70degC | 7,480 |
| MAX3232CPWR | MAX3232 | 250k | TSSOP-16 | 3V | 300 mV | 0degC ~ 70degC | 32,860 |
| MAX3232EIDWR | MAX3232 | 250k | SOIC-16 | 3V | 300 mV | -40degC ~ 85degC | 8,287 |
