Overview
The MAX3243EIPW is a multichannel RS-232 line driver/receiver produced by Texas Instruments. This device is designed to provide a single-chip, single-supply interface for IBM PC/AT serial ports. It operates with a supply voltage range of 3V to 5.5V, making it versatile for various applications. The MAX3243EIPW includes three line drivers and five line receivers, along with a dual charge-pump circuit, which enables operation from a single supply voltage. The device also features ±15kV ESD protection on serial-port connection pins, ensuring robustness against electrostatic discharges.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC Supply Voltage Range | -0.3 | 6 | V | |
| Driver and Control High-Level Input Voltage (VCC = 3.3V) | 2 | V | ||
| Driver and Control Low-Level Input Voltage (VCC = 3.3V) | 0.8 | V | ||
| Receiver Input Voltage | -25 | 25 | V | |
| Operating Free-Air Temperature (MAX3243EC) | 0 | 70 | °C | |
| Operating Free-Air Temperature (MAX3243EI) | -40 | 85 | °C | |
| Data Signaling Rate | 150 | 250 | kbit/s | |
| Driver Output Slew Rate | 4 | 30 | V/μs | |
| Package Types | SSOP (DB), SOIC (DW), TSSOP (PW) |
Key Features
- Operates with a 3V to 5.5V supply voltage.
- Single-chip and single-supply interface for IBM PC/AT serial ports.
- Includes three line drivers and five line receivers.
- Dual charge-pump circuit for voltage generation.
- ±15kV ESD protection on serial-port connection pins using the Human-Body Model (HBM).
- Meets or exceeds TIA/EIA-232-F and ITU V.28 standards.
- Accepts 5V logic input with a 3.3V supply.
- Always-active noninverting receiver output (ROUT2B) for ring indicator and valid RS-232 input checking.
- Auto-powerdown feature to disable driver outputs when no valid RS-232 signal is sensed.
- Low active current: 300μA typical, and low standby current: 1μA typical.
- Serial-mouse driveability.
Applications
- Battery-powered systems.
- Wired networking.
- Data center and enterprise computing.
- Notebooks and laptops.
- Hand-held equipment and palmtop PCs.
- Tablets.
Q & A
- What is the supply voltage range for the MAX3243EIPW?
The MAX3243EIPW operates with a supply voltage range of 3V to 5.5V.
- How many line drivers and receivers does the MAX3243EIPW have?
The device includes three line drivers and five line receivers.
- What is the ESD protection level of the MAX3243EIPW?
The device has ±15kV ESD protection on serial-port connection pins using the Human-Body Model (HBM).
- What standards does the MAX3243EIPW meet or exceed?
The device meets or exceeds TIA/EIA-232-F and ITU V.28 standards.
- What is the maximum data signaling rate of the MAX3243EIPW?
The device operates up to a data signaling rate of 250 kbit/s.
- Does the MAX3243EIPW 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 typical active and standby currents of the MAX3243EIPW?
The typical active current is 300μA, and the typical standby current is 1μA.
- What package types are available for the MAX3243EIPW?
The device is available in SSOP (DB), SOIC (DW), and TSSOP (PW) packages.
- What is the operating temperature range for the MAX3243EC and MAX3243EI versions?
The MAX3243EC operates from 0°C to 70°C, and the MAX3243EI operates from –40°C to 85°C.
- Does the MAX3243EIPW support 5V logic input with a 3.3V supply?
Yes, the device accepts 5V logic input with a 3.3V supply.
