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SP3232E TTL-to-RS232
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RS232 SP3232 TTL to RS232 module, RS232 to TTL flashing line

Price range: $0.49 through $0.991 pcs

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Brand

easyelecmodule
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DESCRIPTION AND FEATURES

Product Introduction

What is the RS232 module and what is its function?

The serial port of the single-chip microcomputer must undergo level conversion before it can communicate with the standard RS-232. The conversion chips for 5V are generally MAX232 or SP232, and for 3.3V, they are generally MAX3232 or SP3232.

The RS232 interface is a general serial communication standard, used to establish a reliable communication channel between a computer and external devices to achieve bidirectional data transmission. Through the RS232 interface, a computer can connect with various peripheral devices such as printers, modems, sensors, etc., to realize the control of devices and data exchange.
Applicable products: printers, scanners, sensors, etc.
It is commonly used in industrial automation control systems and communication equipment fields.

Key Specification

Spec Details
Supply Voltage 3.0V–5.5V (works with both 3.3V and 5V MCUs—no voltage dividers needed).
RS232 Output Voltage ±5.5V (meets RS232 standards—works with all RS232 devices).
Data Rate Up to 1Mbps (handles all common RS232 baud rates: 9600, 19200, 115200bps).
Operating Temperature -40°C to +85°C (industrial grade—works in garages or freezers).
ESD Protection ±15kV (Human Body Model)—safe to handle without anti-static gear (but still be careful).
Power Use 5mA active, 1μA shutdown (won’t drain batteries in portable projects).
SP3232E TTL-to-RS232
SP3232E TTL-to-RS232

Wiring Instructions

Note: For both TTL and RS232 ends, TXD should be connected to RXD and RXD to TXD, with cross – pairing connection.
 
TTL (UART) end:
 
  • VCC: Connect to DC 3V – 5.5V.
  • GND: Connect to GND.
  • TXD: Connect to RXD of the TTL end of external equipment.
  • RXD: Connect to TXD of the TTL end of external equipment.
 
RS232 end:
 
  • RXD: Connect to TXD of the RS232 end of external equipment.
  • TXD: Connect to RXD of the RS232 end of external equipment.
  • GND: Connect to GND.
SP3232E TTL-to-RS232 Circuit
SP3232E TTL-to-RS232
SP3232E TTL-to-RS232

Main Uses

  1. MCUs such as single – chip microcomputers and ARM communicate with computers through the computer’s serial port (COM port).
  2. Radio modification, mobile phone flashing, XBOX360 flashing, GPS, automobile detection, DVD flashing, hard disk maintenance, and set – top box upgrade.
  3. Serial port expansion of devices.

SP3222E_SP3232E Datasheet：https://easyelecmodule.com/wp-content/uploads/SP3222E_SP3232E-datasheet-1.pdf

Shipping and Delivery
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Shipping Cost

We only ship to the United States. Shipping costs are calculated based on the total order amount.

Shipping Method And Delivery Time

All orders will be processed and shipped within 72 hours of placing the order (excluding weekends and holidays). They will ship from Shenzhen, China, primarily via 4PX logistics. Depending on the destination and logistics conditions, other carriers such as DHL, FedEx, UPS, USPS, etc., may also handle the delivery. Estimated shipping time is 7-12 business days, with actual delivery occurring in 10-17 business days, depending on logistics conditions.

Payment:

We accept Visa, Master card, Maestro, American Express, JCB, Dinner's Club, Discover, Paypal, Apple Pay, Google Pay .