MAX232CPE in MAX232 / MAX3232 RS-232 Family
The MAX232CPE family, originally designed by Maxim Integrated and now part of the Analog Devices portfolio, represents the industry-standard dual RS-232 driver/receiver. These components utilize an integrated charge pump to generate TIA/EIA-232-E voltage levels from a single 5V supply using four external capacitors. They are essential for bridging the gap between TTL/CMOS logic levels and the bipolar voltage requirements of serial communication interfaces in legacy and industrial systems.
Variants in This Sub-Family
Variants within the MAX232 family typically differ based on temperature grade, packaging, and capacitor requirements. The CPE designation specifically denotes a commercial temperature range (0 to 70 Celsius) in a 16-pin plastic DIP package. Related variants like the EPE offer extended industrial temperature ranges, while the MAX232A sub-family utilizes smaller 0.1uF external capacitors compared to the standard 1.0uF requirement of the base MAX232CPE.
