MAX3232
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The MAX3232 is a high-performance RS-232 transceiver designed to provide reliable serial communication in both 3V and 5V systems. It features two drivers and two receivers, offering a complete serial port interface. The MAX3232 operates from a single 3V to 5.5V power supply and uses an internal charge pump with external capacitors to generate the necessary RS-232 voltage levels. This transceiver ensures compliance with the RS-232 standard and is ideal for applications requiring robust data transmission over serial interfaces.
Key Features:
- Two RS-232 drivers and two RS-232 receivers
- Operates from a single 3V to 5.5V power supply
- Internal charge pump requires four external capacitors
- Meets RS-232D and V.28 specifications
- Data rate: up to 250 kbps
- Low power consumption
- ±15 kV ESD protection on RS-232 I/O pins
- Compatible with both 3.3V and 5V logic levels
- Pin-compatible with industry-standard 232 devices
- Supply Voltage (VCC): 3V to 5.5V
- Driver Output Voltage: ±5.5V (typical)
- Receiver Input Voltage Range: ±25V
- High-Level Input Voltage (VIH): 2.0V (min)
- Low-Level Input Voltage (VIL): 0.8V (max)
- High-Level Output Voltage (VOH): VCC - 0.6V (min)
- Low-Level Output Voltage (VOL): 0.4V (max)
- Data Rate: Up to 250 kbps
- Operating Temperature Range: -40°C to +85°C
- Package: 16-pin SOIC/DIP
- PC Serial Ports: Adds RS-232 serial ports to computers.
- Industrial Automation: Interfaces serial devices in factory automation systems.
- Embedded Systems: Provides serial communication in microcontroller-based projects.
- Point-of-Sale Systems: Facilitates data transfer in retail environments.
- Networking Equipment: Connects serial devices in networked systems.
- Telecommunications: Used in communication equipment for reliable data transfer.
Technical Specifications:
- Logic Family: CMOS
- Number of Channels: 3
- Switch Configuration: Single-Pole Double-Throw (SPDT)
- Supply Voltage Range: 3V to 15V
- “ON” Resistance (R_ON): 125Ω typical at V_DD = 10V
- “OFF” Leakage Current (I_OFF): ±100pA typical at V_DD = 10V
- Control Input Voltage (V_IH): 0.7 V_DD min, 0.3 V_DD max
- Maximum Operating Frequency: 40 MHz at V_DD = 10V
Applications:
- Signal routing and switching
- Analog and digital multiplexing
- Audio and video signal processing
- Data acquisition systems
- Test equipment