Overview
The MAX232EING4, produced by Texas Instruments, is a dual driver/receiver integrated circuit designed to convert TTL/CMOS logic levels to RS232 levels and vice versa. This device is part of the MAX232 family and is widely used in various applications requiring serial communication between microcontrollers and RS232-compatible devices.
The MAX232EING4 includes a capacitive voltage generator that enables it to operate from a single 5V power supply, generating the necessary voltage levels for RS232 communication. This makes it an efficient and compact solution for integrating microcontrollers with RS232 systems.
Key Specifications
| Specification | Value |
|---|---|
| Operating Voltage | Single 5V power supply |
| Charge-Pump Capacitors | 1µF (four capacitors required) |
| Data Rate | Up to 120 kbit/s |
| Drivers and Receivers | Two drivers and two receivers |
| Input Levels | ±30V |
| Supply Current | 8 mA typical |
| ESD Protection | Exceeds JESD 22 – 2000V Human-body model (A114-A) |
| Package Types | SOIC (16), PDIP (16), SOP (16) |
| Operating Temperature Range | -40°C to 85°C |
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 for dual conversion capability.
- Accepts ±30V input levels.
- Low supply current of 8 mA typical.
- ESD protection exceeds JESD 22 – 2000V Human-body model (A114-A).
- Available in various package types including SOIC, PDIP, and SOP.
Applications
- Connecting microcontrollers to computers and other RS232-compatible devices.
- TTL/CMOS to RS232 conversion in various electronic systems.
- Used in battery-powered systems, terminals, modems, and computers.
- RS232 cables and adapters.
Q & A
- What is the primary function of the MAX232EING4 IC?
The primary function of the MAX232EING4 IC is to convert TTL/CMOS logic levels to RS232 levels and vice versa.
- What is the operating voltage of the MAX232EING4?
The MAX232EING4 operates from a single 5V power supply.
- How many charge-pump capacitors are required for the MAX232EING4?
Four 1µF charge-pump capacitors are required.
- What is the maximum data rate supported by the MAX232EING4?
The MAX232EING4 supports data rates up to 120 kbit/s.
- How many drivers and receivers does the MAX232EING4 have?
The MAX232EING4 has two drivers and two receivers.
- What are the input voltage levels accepted by the MAX232EING4?
The MAX232EING4 can accept ±30V input levels.
- What is the typical supply current of the MAX232EING4?
The typical supply current is 8 mA.
- What kind of ESD protection does the MAX232EING4 offer?
The MAX232EING4 offers ESD protection that exceeds JESD 22 – 2000V Human-body model (A114-A).
- In what package types is the MAX232EING4 available?
The MAX232EING4 is available in SOIC, PDIP, and SOP package types.
- What is the operating temperature range of the MAX232EING4?
The operating temperature range is -40°C to 85°C.
