Overview
The MAX232ECNG4, produced by Texas Instruments, is a dual driver/receiver integrated circuit designed to convert TTL/CMOS logic levels to RS-232-F compliant voltage levels and vice versa. This device is part of the MAX232 family and is specifically enhanced with improved ESD protection. It operates from a single 5V power supply and uses a capacitive voltage generator to produce the necessary RS-232 voltage levels, making it highly efficient for various communication applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Voltage | 5 | V |
| Supply Current | 8 | mA (typical) |
| Data Rate | Up to 120 kbit/s | kbit/s |
| Input Levels | ±30 V | V |
| ESD Protection | ±15 kV HBM, ±8 kV IEC61000-4-2 Contact Discharge, ±15 kV IEC61000-4-2 Air-Gap Discharge | kV |
| Package Types | SOIC (16-pin), PDIP (16-pin), SOP (16-pin) | |
| Threshold Voltage | 1.3 V (typical) | V |
| Hysteresis | 0.5 V (typical) | V |
Key Features
- Meets or exceeds TIA/EIA-232-F and ITU recommendation V.28 standards.
- Operates from a single 5V power supply with 1µF charge-pump capacitors.
- Supports data rates up to 120 kbit/s.
- Includes two drivers and two receivers.
- Accepts ±30V input levels.
- Low supply current: 8mA typical.
- Enhanced ESD protection: ±15kV HBM, ±8kV IEC61000-4-2 Contact Discharge, ±15kV IEC61000-4-2 Air-Gap Discharge.
- Available in various package types including SOIC, PDIP, and SOP.
- Each receiver converts RS-232 inputs to 5V TTL/CMOS levels with a typical threshold of 1.3V and hysteresis of 0.5V.
Applications
- TIA/EIA-232-F compliant systems.
- Battery-powered systems.
- Terminals and modems.
- Computers and other RS-232 compatible devices.
- Interface between microcontrollers (e.g., PIC, ARM, Atmel) and computers.
Q & A
- What is the operating voltage of the MAX232ECNG4?
The MAX232ECNG4 operates from a single 5V power supply.
- What is the maximum data rate supported by the MAX232ECNG4?
The MAX232ECNG4 supports data rates up to 120 kbit/s.
- How many drivers and receivers does the MAX232ECNG4 have?
The MAX232ECNG4 includes two drivers and two receivers.
- What is the typical supply current of the MAX232ECNG4?
The typical supply current is 8mA.
- What level of ESD protection does the MAX232ECNG4 offer?
The MAX232ECNG4 offers ±15kV HBM, ±8kV IEC61000-4-2 Contact Discharge, and ±15kV IEC61000-4-2 Air-Gap Discharge ESD protection.
- What are the common applications of the MAX232ECNG4?
Common applications include TIA/EIA-232-F compliant systems, battery-powered systems, terminals, modems, computers, and interfaces between microcontrollers and computers.
- What package types are available for the MAX232ECNG4?
The MAX232ECNG4 is available in SOIC, PDIP, and SOP package types.
- How does the MAX232ECNG4 convert voltage levels?
The MAX232ECNG4 uses a capacitive voltage generator to convert TTL/CMOS logic levels to RS-232-F compliant voltage levels and vice versa.
- What is the input voltage range for the receivers of the MAX232ECNG4?
The receivers can accept input levels up to ±30V.
- What is the typical threshold voltage for the receivers of the MAX232ECNG4?
The typical threshold voltage for the receivers is 1.3V with a hysteresis of 0.5V.
