Overview
The MAX3237EIDB, produced by Texas Instruments, is a multichannel RS-232 line driver/receiver integrated circuit. This device is designed to provide a reliable and efficient interface between an asynchronous communication controller and the serial-port connector. It operates within a voltage range of 3-V to 5.5-V and supports data signaling rates up to 1 Mbit/s. The MAX3237EIDB features five line drivers, three line receivers, and a dual charge-pump circuit, ensuring robust ESD protection and low standby current.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Drivers/Receivers | 5/3 | - |
| Protocol | RS232 | - |
| Data Rate | Up to 1 Mbps | - |
| Voltage - Supply | 3 V to 5.5 V | V |
| Operating Temperature | -40°C to 85°C | °C |
| Package/Case | 28-SSOP (0.209", 5.30mm Width) | - |
| Mounting Type | Surface Mount | - |
| ESD Protection | ±15 kV (Human-Body Model), ±8 kV (IEC61000-4-2, Contact Discharge), ±15 kV (IEC61000-4-2, Air-Gap Discharge) | kV |
| Standby Current | 1 mA Typical | mA |
| Shutdown Supply Current | 10 nA to 300 nA | nA |
Key Features
- Meets or exceeds the requirements of TIA/EIA-232-F and ITU v.28 standards.
- Operates with a single 3-V to 5.5-V supply voltage.
- Supports data signaling rates from 250 kbit/s to 1 Mbit/s.
- Low standby current of 1 mA typical.
- Robust ESD protection: ±15 kV (Human-Body Model), ±8 kV (IEC61000-4-2, Contact Discharge), and ±15 kV (IEC61000-4-2, Air-Gap Discharge).
- Dual charge-pump circuit for efficient voltage generation.
- Five line drivers and three line receivers.
- Shutdown mode with high-impedance state for transmitters and receivers.
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 voltage supply range for the MAX3237EIDB?
The MAX3237EIDB operates with a single 3-V to 5.5-V supply voltage. - What are the data signaling rates supported by the MAX3237EIDB?
The device supports data signaling rates from 250 kbit/s to 1 Mbit/s. - How many line drivers and receivers does the MAX3237EIDB have?
The MAX3237EIDB features five line drivers and three line receivers. - What is the ESD protection level of the MAX3237EIDB?
The device offers robust ESD protection: ±15 kV (Human-Body Model), ±8 kV (IEC61000-4-2, Contact Discharge), and ±15 kV (IEC61000-4-2, Air-Gap Discharge). - What is the typical standby current of the MAX3237EIDB?
The typical standby current is 1 mA. - What are the operating temperature ranges for the MAX3237EIDB?
The device operates from -40°C to 85°C. - What package types are available for the MAX3237EIDB?
The device is available in a 28-SSOP package. - Is the MAX3237EIDB suitable for battery-powered devices?
Yes, it is designed for battery-powered, hand-held, and portable equipment. - How does the shutdown mode affect the MAX3237EIDB?
In shutdown mode, the transmitters are disabled, and the outputs are forced into a high-impedance state, with the supply current falling to less than 1 mA. - Can the receiver outputs be placed in a high-impedance state?
Yes, the receiver outputs can be placed in a high-impedance state by setting the enable (EN) high.
