MAX3232PMB1# Peripheral Module
Overview
The MAX3232PMB1# is a Pmod-compatible peripheral module featuring the MAX3232 true RS-232 transceiver. It allows for seamless communication between a logic-level UART and an RS-232 serial port using a single supply voltage from 3.0V to 5.5V. This module is designed to bridge low-voltage microcontrollers with legacy industrial equipment or PC serial ports.
Why Choose This Part
The module utilizes internal charge pumps to maintain true RS-232 levels even when running from a 3.3V rail, ensuring compatibility with all standard receivers. It features enhanced ESD protection up to 15kV on transmitter outputs and receiver inputs, making it resilient in harsh environments. The pre-assembled Pmod form factor simplifies prototyping by eliminating the need for custom PCB layout for the sensitive charge pump capacitor placement.
Applications
Getting Started
Connect the module to any host board with a Pmod-compatible header configured for Type 4 UART. Ensure the supply voltage is within the 3.0V to 5.5V range and configure your microcontroller UART for the desired baud rate, as the MAX3232 supports data rates up to 120kbps.
MAX3232 Family
Comparing specs that differ across variants. The current part is highlighted.
| Part Number | Package | Temp Range | Stock |
|---|---|---|---|
| MAX3232 (this part) | — | — | 538 |
| MAX3232CPWR (Texas Instruments) | TSSOP-16 | 0degC ~ 70degC | 32,860 |
| MAX3232EIDWR (Texas Instruments) | SOIC-16 | -40degC ~ 85degC | 8,287 |
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