Overview
The MAX3243IDBR from Texas Instruments is a multichannel RS-232 line driver and receiver designed for single-chip and single-supply operation. It is ideal for interfacing with IBM™ PC/AT™ serial ports and meets or exceeds the requirements of TIA/EIA-232-F and ITU V.28 standards. This device features three line drivers and five line receivers, making it suitable for a variety of serial communication applications. The MAX3243IDBR operates with a supply voltage range of 3V to 5.5V and includes robust ESD protection of ±15kV using the Human-Body Model (HBM).
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VCC) | 3V to 5.5V | V |
| Number of Drivers | 3 | - |
| Number of Receivers | 5 | - |
| Data Rate | Up to 250 kbit/s | kbit/s |
| Active Current | 300 μA (typical) | μA |
| Standby Current | 1 μA (typical) | μA |
| ESD Protection | ±15kV (HBM) | kV |
| Operating Temperature (MAX3243C) | 0°C to 70°C | °C |
| Operating Temperature (MAX3243I) | –40°C to 85°C | °C |
| Package Types | SSOP (28), SOIC (28), TSSOP (28) | - |
Key Features
- Operates with a single 3V to 5.5V supply voltage, making it versatile for various applications.
- Single-chip and single-supply interface for IBM™ PC/AT™ serial ports.
- RS-232 Bus-pin ESD protection of ±15kV using the Human-Body Model (HBM).
- Meets or exceeds the requirements of TIA/EIA-232-F and ITU V.28 standards.
- Three line drivers and five line receivers, ideal for DE-9 DTE interfaces.
- Low active current: 300 μA typical, and low standby current: 1 μA typical.
- Auto-powerdown feature to disable driver outputs when no valid RS-232 signal is sensed.
- Always-active noninverting receiver output (ROUT2B) and special outputs for ring indicator and valid RS232 input checking.
- Accepts 5V logic input with 3.3V supply.
Applications
- Battery-powered systems.
- Tablets.
- Notebooks.
- Laptops.
- Hand-held equipment.
Q & A
- What is the operating voltage range of the MAX3243IDBR?
The MAX3243IDBR operates with a supply voltage range of 3V to 5.5V.
- How many line drivers and receivers does the MAX3243IDBR have?
The device features three line drivers and five line receivers.
- What is the maximum data rate supported by the MAX3243IDBR?
The MAX3243IDBR supports data rates up to 250 kbit/s.
- What kind of ESD protection does the MAX3243IDBR offer?
The device offers ±15kV ESD protection using the Human-Body Model (HBM).
- What are the typical active and standby currents of the MAX3243IDBR?
The typical active current is 300 μA, and the typical standby current is 1 μA).
- Does the MAX3243IDBR support auto-powerdown?
Yes, the device features an auto-powerdown feature to disable driver outputs when no valid RS-232 signal is sensed).
- What are the package types available for the MAX3243IDBR?
The device is available in SSOP (28), SOIC (28), and TSSOP (28) packages).
- What are the operating temperature ranges for the MAX3243C and MAX3243I versions?
The MAX3243C operates from 0°C to 70°C, and the MAX3243I operates from –40°C to 85°C).
- Does the MAX3243IDBR meet industry standards for RS-232 communication?
Yes, it meets or exceeds the requirements of TIA/EIA-232-F and ITU V.28 standards).
- What types of applications is the MAX3243IDBR suitable for?
The device is suitable for battery-powered systems, tablets, notebooks, laptops, and hand-held equipment).
