MAX232DR

Texas Instruments MAX232DR

Part No.:: MAX232DR

Manufacturer:: Texas Instruments

Package:: 16-SOIC (0.154, 3.90mm Width)

Datasheet:: MAX232DR.pdf

Description:: IC TRANSCEIVER FULL 2/2 16SOIC

Quantity:: RFQ

Payment:

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Product details

Product overview
The MAX232DR is a dual-channel RS-232 transceiver designed by Texas Instruments (TI) to address the need to convert TTL/CMOS levels to RS-232 standard levels. Its core function is to generate ±10V high voltage through a built-in charge pump, enabling two-way communication without an external power supply, compatible with the industrial temperature range (-40°C to +85°C) and suitable for harsh environments.

2. Core features
Level conversion: Support TTL/CMOS (0-5V) and RS-232 (±15V) bidirectional conversion.

High integration: Built-in charge pump, only 4 external capacitors (0.1μF) to work.

Anti-interference ability: ±15kV ESD protection (IEC 61000-4-2), enhance system reliability.

Low power consumption: Typical static current 8mA, suitable for battery-powered devices.

Data rate: The maximum transmission rate is 120kbps, which meets most serial communication requirements.

3. Technical specifications
Package type: 16-pin SOIC (DR Suffix), compact and easy to weld.

Supply voltage: Single supply 4.5V to 5.5V.

Operating temperature: Industrial grade -40°C to +85°C.

Compatibility: Complies with EIA/TIA-232-F standards and supports full-duplex communication.

3. Technical specifications
Package type: 16-pin SOIC (DR Suffix), compact and easy to weld.

Supply voltage: Single supply 4.5V to 5.5V.

Operating temperature: Industrial grade -40°C to +85°C.

Compatibility: Complies with EIA/TIA-232-F standards and supports full-duplex communication.

4. Typical application scenarios
Industrial control: RS-232 communication interface between PLC, sensor and upper computer.

Embedded system: MCU (such as STM32, Arduino) and PC serial port data transmission.

Medical equipment: Stable communication module in low noise environment.

Consumer electronics: POS machines, printers and other peripheral connections.

5. Design considerations
Capacitor selection: Low ESR ceramic capacitor (0.1μF recommended) should be used.

Wiring optimization: the signal line is as short as possible to avoid parallel high-frequency lines to reduce interference.

Alternative: If you need 3V power or higher, consider the MAX3232 series.
6. Frequently Asked Questions
Q1: Does MAX232DR require external power supply to generate negative voltage?
A: No, the built-in charge pump can generate ±10V voltage through the external capacitor.

Q2: How to solve the communication distance limitation?
A: RS-232 standard theoretical distance of 15 meters, can be installed signal repeater or use RS-485 extension.

7. Conclusion
With high reliability, low cost and ease of use, the MAX232DR is the preferred solution for traditional serial communication. Although high-speed scenarios are gradually shifting to USB or wireless technology, it still plays an important role in industrial control and upgrading of older equipment. The appropriate transceiver type should be selected according to the power supply, speed and environmental requirements.
max232dr

Package/Case:
16-SOIC (0.154, 3.90mm Width)
Packaging:
Tape & Reel (TR),Cut Tape (CT),Bulk
Series:
-
ProductStatus:
Active
Type:
Transceiver
Protocol:
RS232
NumberofDrivers/Receivers:
2/2
Duplex:
Full
ReceiverHysteresis:
500 mV
DataRate:
120Kbps
Voltage-Supply:
4.5V ~ 5.5V
OperatingTemperature:
0°C ~ 70°C
MountingType:
Surface Mount

1. How to order MAX232DR on Chip Easy Buy (HK) Technology Co.LTD?

Currently, Chip Easy Buy (HK) Technology Co.LTD only provide peer-to-peer order processing. While you submit the RFQ, our professional agent will contact you with the competitive prices in the global market, and our agent will prompt you to finish the order if you accept our offers.

2. How does Chip Easy Buy (HK) Technology Co.LTD guarantee that MAX232DR is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the MAX232DR. All suppliers must pass our qualification reviews before they can publish their products including MAX232DR on Chip Easy Buy (HK) Technology Co.LTD; we pay more attention to the channels and quality of MAX232DR products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.

3. Are the MAX232DR price and inventory displayed accurate?

The price and inventory of MAX232DR fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.

4. What forms of payment are accepted?

Wire Transfer, PayPal, Alipay, Wechat, Credit Card, Western Union, MoneyGram, and Escrow are all acceptable.

Warm Tips: Some orders in certain payment forms may require handling fee.

5. How is the shipping arranged?

Customers can choose industry-leading freight companies, including DHL, UPS, FedEx, TNT, and Registered Mail. Shipping insurance is also available.

Once your order has been processed for shipment, our salesperson will send you an email advising you of the shipping status and tracking number.

Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.

6. What is the process for return or replacement of MAX232DR?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the MAX232DR we delivered, we will accept the replacement or return of the MAX232DR only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of MAX232DR.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations