Overview
The MAX3243EIPWR from Texas Instruments is a 3- to 5.5-V multichannel RS-232 line driver/receiver designed for robust serial communication applications. This device is part of the MAX3243E family and is packaged in a 28-pin TSSOP (PW) package. It provides a single-chip and single-supply interface for IBM PC/AT serial ports, making it compatible with a wide range of systems. The MAX3243EIPWR features advanced ESD protection, meeting or exceeding the requirements of TIA/EIA-232-F and ITU V.28 standards.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage Range | 3 to 5.5 | V |
| Operating Temperature Range | –40 to 85 | °C |
| Data Signaling Rate | Up to 500 kbit/s | |
| ESD Protection | ±15-kV HBM, ±8-kV IEC61000-4-2 contact discharge, ±15-kV IEC61000-4-2 air-gap discharge | |
| Package Type | TSSOP (PW) | |
| Number of Pins | 28 | |
| Standby Current | 1 µA typical | |
| External Capacitors | 4 × 0.1 µF |
Key Features
- Single-chip and single-supply interface for IBM PC/AT serial ports
- ESD protection for RS-232 bus pins: ±15-kV HBM, ±8-kV IEC61000-4-2 contact discharge, ±15-kV IEC61000-4-2 air-gap discharge
- Meets or exceeds requirements of TIA/EIA-232-F and ITU V.28 standards
- Operates with 3-V to 5.5-V VCC supply
- Always-active noninverting receiver output (ROUT2B)
- Designed to transmit at a data rate up to 500 kbit/s
- Low standby current: 1 µA typical
- Accepts 5-V logic input with 3.3-V supply
- Serial-mouse driveability
- Auto-powerdown feature to disable driver outputs when no valid RS-232 signal is sensed
Applications
- Battery-powered systems
- Wired networking
- Data center and enterprise computing
- Notebooks and laptops
- Palmtop PCs and hand-held equipment
Q & A
- What is the operating voltage range of the MAX3243EIPWR?
The MAX3243EIPWR operates with a supply voltage range of 3 to 5.5 volts.
- What is the maximum data signaling rate supported by the MAX3243EIPWR?
The device supports data signaling rates up to 500 kbit/s.
- What kind of ESD protection does the MAX3243EIPWR offer?
The device offers ±15-kV HBM, ±8-kV IEC61000-4-2 contact discharge, and ±15-kV IEC61000-4-2 air-gap discharge ESD protection.
- What is the package type and pin count of the MAX3243EIPWR?
The device is packaged in a 28-pin TSSOP (PW) package.
- What is the typical standby current of the MAX3243EIPWR?
The typical standby current is 1 µA.
- Does the MAX3243EIPWR support 5-V logic input with a 3.3-V supply?
- What is the purpose of the auto-powerdown feature in the MAX3243EIPWR?
The auto-powerdown feature disables the driver outputs when no valid RS-232 signal is sensed.
- What standards does the MAX3243EIPWR meet or exceed?
The device meets or exceeds the requirements of TIA/EIA-232-F and ITU V.28 standards.
- What is the operating temperature range of the MAX3243EIPWR?
The operating temperature range is –40°C to 85°C.
- What external capacitors are required for the MAX3243EIPWR?
The device requires 4 × 0.1 µF external capacitors.
