Hw-044 Datasheet Jun 2026

transceiver IC, which allows it to handle bidirectional data conversion while supporting a wide range of logic levels. Key Specifications

The core of the HW-044 is the Texas Instruments MAX3232 (or equivalent compatible IC), which allows for low-power, high-speed data transmission. Specification 3.0V to 5.5V DC Communication IC MAX3232 (Dual Driver/Receiver) Maximum Data Rate Connector Type DB9 Female (RS232 side) Interface Pins VCC, GND, TX, RX (TTL side) Operating Temp -40°C to +85°C Conversion Type Bi-directional (RS232 ↔ TTL) Pinout and Connection Guide hw-044 datasheet

The DB9 connector follows the standard RS232 Serial Port Pinout . In most applications, only three pins are active: : TX (Output from module) Pin 3 : RX (Input to module) Pin 5 : Signal Ground Key Features & Advantages transceiver IC, which allows it to handle bidirectional

The HW-044 is a compact RS232 to TTL converter module featuring the MAX3232 chip, allowing 3.0V to 5.5V operation for interfacing microcontrollers like Arduino with RS232 devices. It provides a female DB9 connector for serial data and a 4-pin header for VCC, GND, TX, and RX signals. For more details, visit freedelivery.com.ua Магазин "Бесплатная доставка" In most applications, only three pins are active:

Although the MAX3232 is built to natively understand 3.3V power rails, check your generic HW-044 version board components carefully before plugging it into an ESP32 or Raspberry Pi. Some knock-off manufacturing variations skip secondary passives and hardwire VCC directly to 5V power tolerances, creating risk of blowing out lower 3.3V threshold chips. Always verify the voltage level on the TXD pin before connecting to sensitive pins.