MAX232DR

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MAX232DR

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IC TRANSCEIVER FULL 2/2 16SOIC

  • メーカーSTマイクロエレクトロニクス

  • メーカー品番 #MAX232DR

  • パッケージ SOIC (D)-16

  • 在庫状況1657

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仕様

属性
Package Tape & Reel (TR),Cut Tape (CT),Bulk
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
Package/Case 16-SOIC (0.154, 3.90mm Width)

概要

Description

The MAX232DR is an integrated circuit designed to convert signals between RS-232 serial communication and TTL (Transistor-Transistor Logic) logic levels. Developed by Maxim Integrated, it is commonly used in applications that require interfacing between computer serial ports and microcontrollers or other digital systems.
Key features of the MAX232DR include:
1. Dual Driver/Receiver: It includes two drivers (converting TTL to RS-232) and two receivers (converting RS-232 to TTL).
2. Voltage Levels: RS-232 outputs are typically ±12V, while TTL uses 0 to 5V, necessitating conversion.
3. Power Supply: Operates from a single 5V power supply, using on-chip charge pumps to generate necessary voltages for RS-232 communication.
4. Package Type: Available in surface-mount packaging, with "DR" indicating a SOIC (Small Outline Integrated Circuit) form factor.
5. Applications: Widely used in PCs, laptops, PDAs, and other devices requiring RS-232 connectivity.
The MAX232DR is valued for its versatility, ease of use, and reliable conversion capabilities in serial communication systems.

Equivalent

The MAX232DR is a dual driver/receiver for RS-232 communication. Equivalent products include:
1. STMicroelectronics' ST3232CDR
2. Texas Instruments' SN75C3232
3. Analog Devices' ADM232A
4. NXP's SP232A
5. Intersil's ICL232
These provide similar functionality and are used in converting signal levels between TTL/CMOS logic and RS-232. Always check the datasheet to ensure compatibility with your specific application.

Features

The MAX232DR is an IC designed for RS-232 communication, featuring dual drivers and dual receivers. It operates from a single 5V power supply and uses capacitive charge pump technology to generate the necessary RS-232 voltage levels, eliminating the need for dual power supplies. The device offers TTL/CMOS logic compatibility on its input side and meets RS-232 signal voltage levels on its output.
Key features include:
- Two drivers and two receivers for full-duplex communication.
- Operates from a single 5V supply.
- Internal charge pump to generate RS-232 voltage levels.
- Low power consumption, typically 5mA.
- High data transmission rate, up to 120 kbps.
- ±30V input voltage range tolerance, protecting against voltage spikes.
- Slew rate limited to 30V/μs to minimize EMI.
- Available in a variety of packages, including SOIC (Small Outline Integrated Circuit) for space-constrained applications.
Overall, the MAX232DR offers reliable performance for interfacing TTL/CMOS logic levels with RS-232 compatible devices, often used in serial communication applications such as PCs, modems, and embedded systems.

Pinout

The MAX232DR is a dual driver/receiver IC used to convert signals from RS-232 serial port to TTL compatible digital logic levels. It is a 16-pin integrated circuit. Here’s a brief overview of its pin functions:
1. Pin 1 (C1+): Positive terminal for the charge pump capacitor.
2. Pin 2 (V+): Positive voltage generated by the charge pump.
3. Pin 3 (C1-): Negative terminal for the charge pump capacitor.
4. Pin 4 (C2+): Positive terminal for the second charge pump capacitor.
5. Pin 5 (C2-): Negative terminal for the second charge pump capacitor.
6. Pin 6 (V-): Negative voltage generated by the charge pump.
7. Pin 7 (T2OUT): Transmitter output 2.
8. Pin 8 (R2IN): Receiver input 2.
9. Pin 9 (R2OUT): Receiver output 2.
10. Pin 10 (T2IN): Transmitter input 2.
11. Pin 11 (T1IN): Transmitter input 1.
12. Pin 12 (R1OUT): Receiver output 1.
13. Pin 13 (R1IN): Receiver input 1.
14. Pin 14 (T1OUT): Transmitter output 1.
15. Pin 15 (GND): Ground.
16. Pin 16 (VCC): Power supply voltage.
The integrated charge pump generates the necessary voltage levels for RS-232 communication from a single 5V supply.

Manufacturer

The MAX232DR is manufactured by Texas Instruments. Texas Instruments, often abbreviated as TI, is an American technology company that designs and manufactures semiconductors and various integrated circuits. The company is well known for its development of analog chips and embedded processors used in a wide range of electronics, including industrial equipment, automotive systems, personal electronics, and communication devices. TI is recognized as one of the leading global semiconductor companies, focusing on innovations in areas such as power management, signal processing, and wireless technology.

Application

The MAX232DR is a dual transmitter/dual receiver that converts signals from RS-232 serial port to TTL-compatible digital logic levels, making it ideal for interfacing between microcontrollers and RS-232 devices. Key application areas include communication between computers and embedded systems, integration with modems, connecting GPS modules, and interfacing with serial sensors and instruments. It's often used in industrial automation, point-of-sale systems, and data acquisition systems where RS-232 communication is required. Its low power consumption and ability to operate at various baud rates make it suitable for compact and portable devices.

Package

The MAX232DR is a dual in-line package (DIP) or small outline integrated circuit (SOIC) designed for RS-232 communication. Specifically, the "DR" suffix typically refers to a small outline package, meaning it is a surface-mount version for electronic circuits, commonly with 16 pins.

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