Overview
The MAX3237EIDBR, produced by Texas Instruments, is a multichannel RS-232 transceiver designed to provide a reliable and efficient serial communication interface. This device consists of five line drivers, three line receivers, and a dual charge-pump circuit, ensuring compliance with TIA/EIA-232-F and ITU v.28 standards. It operates with a single 3-V to 5.5-V supply and supports data signaling rates from 250 kbit/s to 1 Mbit/s. The MAX3237EIDBR is particularly suited for battery-powered, hand-held, and portable equipment due to its low standby current and robust ESD protection.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SSOP-28 | - |
| Operating Temperature Range | -40 to 85 | °C |
| Supply Voltage Range | 3 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 (HBM), ±8 kV (IEC61000-4-2, Contact Discharge), ±15 kV (IEC61000-4-2, Air-Gap Discharge) | - |
| Driver Output Slew Rate | 30 V/µs (maximum) | - |
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)
- External capacitors: 4 × 0.1 µF
- 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
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 MAX3237EIDBR?
The operating temperature range is from -40°C to 85°C.
- What are the supported data signaling rates for the MAX3237EIDBR?
The device supports data signaling rates from 250 kbit/s to 1 Mbit/s.
- What is the typical standby current of the MAX3237EIDBR?
The typical standby current is 1 µA.
- What kind of ESD protection does the MAX3237EIDBR offer?
The device offers ±15 kV ESD protection (HBM), ±8 kV (IEC61000-4-2, Contact Discharge), and ±15 kV (IEC61000-4-2, Air-Gap Discharge).
- Can the MAX3237EIDBR accept 5-V logic input with a 3.3-V supply?
- What is the maximum driver output slew rate of the MAX3237EIDBR?
The maximum driver output slew rate is 30 V/µs.
- How many external capacitors are required for the MAX3237EIDBR?
Four external capacitors, each 0.1 µF, are required.
- Is the MAX3237EIDBR designed to be interchangeable with other devices?
- What is the latch-up performance of the MAX3237EIDBR?
The latch-up performance exceeds 100 mA per JESD 78, Class II.
- What are some common applications of the MAX3237EIDBR?
