MAX232NG4
Product Overview
- Category: Integrated Circuit
- Use: MAX232NG4 is a dual driver/receiver that includes a capacitive voltage generator to supply TIA/EIA-232-F voltage levels from a single 5V supply.
- Characteristics: It is designed for RS-232 and V.28 communication interfaces, and it is suitable for battery-powered systems.
- Package: The MAX232NG4 comes in a 16-pin DIP or SO package.
- Essence: This product serves as a level shifter and line driver/receiver for serial communication.
- Packaging/Quantity: Available in tubes or tape and reel packaging with various quantities.
Specifications
- Supply Voltage: 5V
- Operating Temperature: -40°C to +85°C
- Data Rate: 120kbps
- Number of Drivers/Receivers: 2
Detailed Pin Configuration
The MAX232NG4 has a 16-pin configuration with specific functions assigned to each pin. The detailed pin configuration is as follows: 1. VCC 2. C1+ 3. C1- 4. V+ 5. R1- 6. R1+ 7. GND 8. GND 9. T2OUT 10. T2IN 11. R2IN 12. R2OUT 13. T1OUT 14. T1IN 15. R1IN 16. R1OUT
Functional Features
- Dual Driver/Receiver
- Capacitive Voltage Generator
- Suitable for Battery-Powered Systems
- ESD Protection Exceeds JESD 22
Advantages and Disadvantages
Advantages
- Single 5V Supply Operation
- Meets or Exceeds TIA/EIA-232-F and ITU Recommendation V.28
- Low Power Consumption
Disadvantages
- Limited Data Rate (120kbps)
- Requires External Capacitors
Working Principles
The MAX232NG4 operates by converting the TTL/CMOS logic levels to RS-232 voltage levels. It uses an internal voltage doubler to generate the RS-232 voltage levels required for communication.
Detailed Application Field Plans
The MAX232NG4 is commonly used in various applications such as: - Serial Communication Interfaces - Industrial Control Systems - Data Terminals - Modems - Instrumentation
Detailed and Complete Alternative Models
Some alternative models to MAX232NG4 include: - MAX3232E - SP3232E - ADM3202
In conclusion, the MAX232NG4 is a versatile integrated circuit that serves as a vital component in serial communication interfaces, offering reliable performance and compatibility with various systems.
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10个与MAX232NG4在技术解决方案中的应用相关的常见问题及解答
What is MAX232NG4?
- MAX232NG4 is a dual driver/receiver that includes a capacitive voltage generator to supply TIA/EIA-232-F voltage levels from a single 5V supply.
What are the typical applications of MAX232NG4?
- MAX232NG4 is commonly used in RS-232 communication interfaces, such as connecting microcontrollers to PCs, modems, and other serial devices.
What is the operating voltage range for MAX232NG4?
- The operating voltage range for MAX232NG4 is typically between 4.5V and 5.5V.
How many drivers and receivers are included in MAX232NG4?
- MAX232NG4 contains two drivers and two receivers, making it suitable for full-duplex communication.
What is the maximum data rate supported by MAX232NG4?
- MAX232NG4 can support data rates up to 120kbps.
Does MAX232NG4 require external capacitors?
- Yes, MAX232NG4 requires four external 1μF capacitors for its internal charge pump circuitry.
Can MAX232NG4 be used with 3.3V microcontrollers?
- Yes, MAX232NG4 can be used with 3.3V microcontrollers by adding level shifters or voltage dividers to interface with the 5V logic levels of MAX232NG4.
What are the typical pin configurations for MAX232NG4?
- The typical pin configuration includes VCC, GND, T1IN, T1OUT, R1IN, R1OUT, T2IN, T2OUT, R2IN, and R2OUT.
Is MAX232NG4 ESD protected?
- Yes, MAX232NG4 provides ±15kV ESD protection on the RS-232 transmitter outputs and receiver inputs.
Are there any common pitfalls when using MAX232NG4?
- One common pitfall is incorrect capacitor selection or placement, which can lead to unreliable communication or damage to the device. It's important to carefully follow the recommended capacitor specifications and layout guidelines provided in the datasheet.