Overview
The MAX232CPE is a dual driver/receiver integrated circuit designed for converting TTL/CMOS logic levels to RS232 logic levels and vice versa. It is manufactured by Analog Devices Inc./Maxim Integrated and operates from a single +5V power supply. This IC is particularly useful for interfacing microcontrollers with computers or other RS232-compatible devices.
Key Specifications
| Parameter | Value | Description |
|---|---|---|
| Number of Drivers/Receivers | 2/2 | Dual drivers and receivers |
| Supply Voltage | 4.5 V ~ 5.5 V | Operating voltage range |
| Operating Temperature | 0°C ~ 70°C | Temperature range for operation |
| Data Rate | 120 kbps | Maximum data transfer rate |
| Input Levels | ±30 V | RS232 input voltage levels |
| Supply Current | 8 mA (typical) | Current consumption |
| Package Type | 16-DIP (0.300", 7.62mm) | Package type and dimensions |
| Mounting Type | Through Hole | Type of mounting |
Key Features
- TTL/CMOS to RS232 Conversion: Converts TTL/CMOS logic levels to RS232 and vice versa.
- Dual Drivers and Receivers: Supports two conversion channels simultaneously.
- Single +5V Supply: Operates from a single +5V power supply with an integrated charge pump.
- High-Speed Operation: Supports data rates up to 120 kbps.
- ESD Protection: Exceeds JESD 22 – 2000V Human-body model (A114-A) and 15kV HBM for improved ESD protection.
- Low Supply Current: Typical supply current of 8 mA.
- Easy Setup: Simple to set up and initialize, requiring minimal external components.
Applications
- Microcontroller Interface: Used to connect microcontrollers with computers or other RS232-compatible devices.
- RS232 Cables and Adapters: Utilized in RS232 cables and adapters for serial communication.
- Terminals and Modems: Employed in terminals, modems, and other serial communication devices.
- Battery-Powered Systems: Suitable for battery-powered systems due to low power consumption.
Q & A
- What is the primary function of the MAX232CPE IC?
The primary function of the MAX232CPE IC is to convert TTL/CMOS logic levels to RS232 logic levels and vice versa.
- What is the operating voltage range of the MAX232CPE?
The operating voltage range of the MAX232CPE is 4.5 V to 5.5 V.
- How many drivers and receivers does the MAX232CPE have?
The MAX232CPE has two drivers and two receivers.
- What is the maximum data rate supported by the MAX232CPE?
The MAX232CPE supports data rates up to 120 kbps.
- What type of package is the MAX232CPE available in?
The MAX232CPE is available in a 16-DIP (0.300", 7.62mm) package.
- Does the MAX232CPE require external voltage sources for RS232 levels?
No, the MAX232CPE generates RS232 voltage levels from a single +5V supply using an integrated charge pump.
- What is the typical supply current of the MAX232CPE?
The typical supply current of the MAX232CPE is 8 mA.
- What kind of ESD protection does the MAX232CPE offer?
The MAX232CPE offers ESD protection exceeding JESD 22 – 2000V Human-body model (A114-A) and 15kV HBM.
- In what applications is the MAX232CPE commonly used?
The MAX232CPE is commonly used in microcontroller interfaces, RS232 cables and adapters, terminals, modems, and battery-powered systems.
- How many capacitors are required for the MAX232CPE to operate?
The MAX232CPE requires four capacitors to operate, typically 1µF to 22µF.
