Overview
The MAX3237EIPWR is a 3- to 5.5-V multichannel RS-232 line driver/receiver produced by Texas Instruments. This device is designed to provide the electrical interface between an asynchronous communication controller and the serial-port connector, adhering to the TIA/EIA-232-F and ITU v.28 standards. It features a dual charge-pump circuit and includes five line drivers, three line receivers, and robust ESD protection. The MAX3237EIPWR operates from a single 3-V to 5.5-V supply and supports data signaling rates up to 1 Mbps, making it suitable for a variety of applications requiring reliable serial communication.
Key Specifications
| Parameter | Value |
|---|---|
| Package | TSSOP (PW) with 28 pins |
| Operating Temperature Range | -40°C to 85°C |
| Supply Voltage Range | 3 V to 5.5 V |
| Data Signaling Rate | 250 kbit/s to 1 Mbit/s |
| Standby Current | 1 µA typical |
| External Capacitors | 4 × 0.1 µF |
| ESD Protection | ±15 kV – Human-Body Model (HBM), ±8 kV – IEC61000-4-2, Contact Discharge, ±15 kV – IEC61000-4-2, Air-Gap Discharge |
| Driver Output Slew Rate | Maximum of 30 V/µs |
Key Features
- Meets or exceeds the requirements of TIA/EIA-232-F and ITU v.28 standards
- Operates with 3-V to 5.5-V VCC supply
- Supports data signaling rates from 250 kbit/s to 1 Mbit/s
- Low standby current of 1 µA typical
- Accepts 5-V logic input with 3.3-V supply
- Designed to be interchangeable with Maxim MAX3237E
- Latch-up performance exceeds 100 mA per JESD 78, Class II
- Robust ESD protection for RS-232 I/O pins
- Dual charge-pump circuit for efficient operation
Applications
- Battery-powered, hand-held, and portable equipment
- PDAs and palmtop PCs
- Notebooks, sub-notebooks, and laptops
- Digital cameras
- Mobile phones and wireless devices
Q & A
- What is the operating temperature range of the MAX3237EIPWR?
The operating temperature range is -40°C to 85°C. - What is the supply voltage range for the MAX3237EIPWR?
The supply voltage range is 3 V to 5.5 V. - What are the data signaling rates supported by the MAX3237EIPWR?
The device supports data signaling rates from 250 kbit/s to 1 Mbit/s. - What is the typical standby current of the MAX3237EIPWR?
The typical standby current is 1 µA. - Does the MAX3237EIPWR have ESD protection?
Yes, it has ±15 kV ESD protection for RS-232 I/O pins. - Can the MAX3237EIPWR accept 5-V logic input with a 3.3-V supply?
Yes, it can accept 5-V logic input with a 3.3-V supply. - What is the maximum driver output slew rate of the MAX3237EIPWR?
The maximum driver output slew rate is 30 V/µs. - How many external capacitors are required for the MAX3237EIPWR?
Four external capacitors of 0.1 µF each are required. - Is the MAX3237EIPWR designed to be interchangeable with other devices?
Yes, it is designed to be interchangeable with Maxim MAX3237E. - What are some common applications of the MAX3237EIPWR?
Common applications include battery-powered devices, PDAs, notebooks, digital cameras, and mobile phones.
