仕様
| 属性 | 値 |
| Package | Tube,Tube |
| ProductStatus | Obsolete |
| Type | Transceiver |
| Protocol | RS232 |
| NumberofDrivers/Receivers | 2/2 |
| Duplex | Full |
| ReceiverHysteresis | 500 mV |
| DataRate | 120Kbps |
| Voltage-Supply | 4.5V ~ 5.5V |
| OperatingTemperature | -40°C ~ 85°C |
| MountingType | Surface Mount |
| Package/Case | 16-SOIC (0.295, 7.50mm Width) |
概要
Description
The MAX232EWE is a dual-channel RS-232 line driver/receiver, commonly used in serial communication to convert signals between a microcontroller and RS-232-compatible devices. Manufactured by Maxim Integrated, it is part of the MAX232 series, which is renowned for its ability to operate from a single 5V power supply, making it suitable for various applications in embedded systems.
Key features of the MAX232EWE include its design to handle both transmit and receive channels, eliminating the need for dual power supplies. It employs external capacitors for charge-pumping voltage conversion, which allows it to generate the necessary RS-232 voltage levels from a 5V supply. The device typically includes integrated ESD protection, ensuring robust communication interfaces. Its compact form factor, usually available in SOIC packages, makes it suitable for space-constrained designs. Overall, the MAX232EWE is a reliable choice for facilitating RS-232 communication in devices requiring simple, efficient serial data exchange.
Key features of the MAX232EWE include its design to handle both transmit and receive channels, eliminating the need for dual power supplies. It employs external capacitors for charge-pumping voltage conversion, which allows it to generate the necessary RS-232 voltage levels from a 5V supply. The device typically includes integrated ESD protection, ensuring robust communication interfaces. Its compact form factor, usually available in SOIC packages, makes it suitable for space-constrained designs. Overall, the MAX232EWE is a reliable choice for facilitating RS-232 communication in devices requiring simple, efficient serial data exchange.
Equivalent
The MAX232EWE is a dual RS-232 driver/receiver IC. Equivalent products include:
1. Texas Instruments SN75C3223E
2. STMicroelectronics ST232C
3. NXP DS232A
4. ON Semiconductor NUP2323
These alternatives have similar functionality, typically used for serial communication in microcontroller applications. Always verify pin compatibility and electrical characteristics before substituting.
1. Texas Instruments SN75C3223E
2. STMicroelectronics ST232C
3. NXP DS232A
4. ON Semiconductor NUP2323
These alternatives have similar functionality, typically used for serial communication in microcontroller applications. Always verify pin compatibility and electrical characteristics before substituting.
Features
The MAX232EWE is an integrated circuit designed for RS-232 serial communication, commonly used to interface TTL/CMOS logic levels with RS-232 compliant equipment. Key features include:
1. Dual Transceiver: It contains two drivers and two receivers, facilitating full-duplex communication.
2. Voltage Levels: Converts TTL/CMOS logic levels (0 to 5V) to RS-232 compatible levels (approximately ±10V).
3. On-Chip Charge Pump: Eliminates the need for external dual power supplies by generating the necessary RS-232 voltage levels from a single 5V supply.
4. Low Power Consumption: Efficient design with low quiescent current, making it ideal for battery-powered applications.
5. Data Rate: Supports data rates up to 120 kbps, suitable for most standard RS-232 applications.
6. ESD Protection: Enhanced electrostatic discharge protection, safeguarding against ESD events.
7. Ease of Use: Minimal external components required, typically just four external capacitors.
8. Package Options: Available in SOP and other package types, offering flexibility for different design needs.
These features make the MAX232EWE a versatile and reliable choice for RS-232 interfacing in various electronic projects and applications.
1. Dual Transceiver: It contains two drivers and two receivers, facilitating full-duplex communication.
2. Voltage Levels: Converts TTL/CMOS logic levels (0 to 5V) to RS-232 compatible levels (approximately ±10V).
3. On-Chip Charge Pump: Eliminates the need for external dual power supplies by generating the necessary RS-232 voltage levels from a single 5V supply.
4. Low Power Consumption: Efficient design with low quiescent current, making it ideal for battery-powered applications.
5. Data Rate: Supports data rates up to 120 kbps, suitable for most standard RS-232 applications.
6. ESD Protection: Enhanced electrostatic discharge protection, safeguarding against ESD events.
7. Ease of Use: Minimal external components required, typically just four external capacitors.
8. Package Options: Available in SOP and other package types, offering flexibility for different design needs.
These features make the MAX232EWE a versatile and reliable choice for RS-232 interfacing in various electronic projects and applications.
Pinout
The MAX232EWE is an integrated circuit designed for RS-232 communication and features a 16-pin SOIC (Small Outline Integrated Circuit) package. It functions as a dual driver/receiver, converting TTL/CMOS logic levels to RS-232 levels and vice versa.
Key pin functions include:
- VCC (Pin 16): Power supply input.
- GND (Pin 15): Ground.
- T1IN, T2IN (Pins 11, 10): TTL/CMOS inputs for the transmitters.
- T1OUT, T2OUT (Pins 14, 7): RS-232 level outputs for the transmitters.
- R1IN, R2IN (Pins 13, 8): RS-232 level inputs for the receivers.
- R1OUT, R2OUT (Pins 12, 9): TTL/CMOS outputs for the receivers.
- C1+, C1- (Pins 1, 3): External capacitor connection for charge pump.
- C2+, C2- (Pins 4, 5): External capacitor connection for charge pump.
- V+ (Pin 2) and V- (Pin 6): Generated positive and negative voltages used for RS-232 communication.
The chip uses a built-in charge pump to generate the necessary voltage levels, eliminating the need for dual power supplies. This makes it suitable for interfacing between TTL/CMOS devices and RS-232 ports.
Key pin functions include:
- VCC (Pin 16): Power supply input.
- GND (Pin 15): Ground.
- T1IN, T2IN (Pins 11, 10): TTL/CMOS inputs for the transmitters.
- T1OUT, T2OUT (Pins 14, 7): RS-232 level outputs for the transmitters.
- R1IN, R2IN (Pins 13, 8): RS-232 level inputs for the receivers.
- R1OUT, R2OUT (Pins 12, 9): TTL/CMOS outputs for the receivers.
- C1+, C1- (Pins 1, 3): External capacitor connection for charge pump.
- C2+, C2- (Pins 4, 5): External capacitor connection for charge pump.
- V+ (Pin 2) and V- (Pin 6): Generated positive and negative voltages used for RS-232 communication.
The chip uses a built-in charge pump to generate the necessary voltage levels, eliminating the need for dual power supplies. This makes it suitable for interfacing between TTL/CMOS devices and RS-232 ports.
Manufacturer
The MAX232EWE is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company specializing in the design and manufacturing of analog, mixed-signal, and digital signal processing (DSP) integrated circuits. The company provides a broad range of products that are used in various applications, including industrial, automotive, communications, healthcare, and consumer electronics. Analog Devices is known for its focus on innovation and high-performance solutions, making it a leading player in the semiconductor industry.
Application
The MAX232EWE is a dual driver/receiver IC used to convert signals between RS-232 serial ports and TTL/CMOS logic levels. Key application areas include:
1. Serial Communication Interfaces: Used in devices requiring RS-232 serial communication, such as computers, modems, and microcontrollers.
2. Embedded Systems: Facilitates communication between microcontrollers and other peripherals or systems with RS-232 ports.
3. Data Logging: Essential in systems that collect data from sensors and transmit it via RS-232 interfaces.
4. Industrial Automation: Utilized in PLCs and other industrial equipment for serial communication.
5. Consumer Electronics: Employed in devices like printers and scanners that use RS-232 connections.
Its ability to operate with a single power supply and provide reliable voltage level conversions makes it versatile in various electronic applications.
1. Serial Communication Interfaces: Used in devices requiring RS-232 serial communication, such as computers, modems, and microcontrollers.
2. Embedded Systems: Facilitates communication between microcontrollers and other peripherals or systems with RS-232 ports.
3. Data Logging: Essential in systems that collect data from sensors and transmit it via RS-232 interfaces.
4. Industrial Automation: Utilized in PLCs and other industrial equipment for serial communication.
5. Consumer Electronics: Employed in devices like printers and scanners that use RS-232 connections.
Its ability to operate with a single power supply and provide reliable voltage level conversions makes it versatile in various electronic applications.
Package
The MAX232EWE is housed in a 16-pin wide SOIC (Small Outline Integrated Circuit) package.
