Overview
The MAX3221MDBREP, produced by Texas Instruments, is a 3-V to 5.5-V single-channel RS-232 line driver/receiver with ±15-kV ESD protection. 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 wide temperature range of –55°C to 125°C, making it suitable for various applications, including battery-powered, hand-held, and portable equipment.
Key Specifications
| Parameter | Min | Typical | Max | Unit |
|---|---|---|---|---|
| Supply Voltage Range (VCC) | -0.3 | - | 6 | V |
| Positive Output Supply Voltage Range (V+) | -0.3 | - | 7 | V |
| Negative Output Supply Voltage Range (V-) | 0.3 | - | -7 | V |
| Supply Voltage Difference (V+ - V-) | - | - | 13 | V |
| High-Level Output Voltage (VOH) | 5 | 5.4 | - | V |
| Low-Level Output Voltage (VOL) | -5 | -5.4 | - | V |
| Input Voltage Range (VI) | -0.3 | - | 6 | V |
| Operating Temperature Range | -55 | - | 125 | °C |
| Data Signaling Rate | - | - | 250 kbit/s | - |
| Driver Output Slew Rate | - | - | 30 V/µs | - |
| Standby Current | - | 1 µA | - | - |
Key Features
- Operates with a 3-V to 5.5-V VCC supply.
- Meets or exceeds the requirements of TIA/EIA-232-F and ITU v.28 standards.
- One driver and one receiver.
- Low standby current of 1 µA typical.
- External capacitors: 4 × 0.1 µF.
- Accepts 5-V logic input with 3.3-V supply.
- Auto-powerdown feature for power savings.
- ±15-kV ESD protection on RS-232 bus pins.
- Extended temperature performance from –55°C to 125°C.
- Flexible control options for power management.
Applications
- Battery-powered, hand-held, and portable equipment.
- PDAs and palmtop PCs.
- Notebooks, subnotebooks, and laptops.
- Digital cameras.
- Mobile phones and wireless devices.
Q & A
- What is the operating voltage range of the MAX3221MDBREP?
The MAX3221MDBREP operates with a supply voltage range of 3-V to 5.5-V.
- What are the key standards that the MAX3221MDBREP complies with?
The device meets or exceeds the requirements of TIA/EIA-232-F and ITU v.28 standards.
- How many drivers and receivers does the MAX3221MDBREP have?
The MAX3221MDBREP has one driver and one receiver.
- What is the typical standby current of the MAX3221MDBREP?
The typical standby current is 1 µA.
- What kind of ESD protection does the MAX3221MDBREP offer?
The device offers ±15-kV ESD protection on RS-232 bus pins.
- What is the operating temperature range of the MAX3221MDBREP?
The operating temperature range is from –55°C to 125°C.
- Does the MAX3221MDBREP have an auto-powerdown feature?
Yes, the device has an auto-powerdown feature for power savings.
- What are the external capacitor requirements for the MAX3221MDBREP?
The device requires 4 × 0.1 µF external capacitors.
- Can the MAX3221MDBREP 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 data signaling rate of the MAX3221MDBREP?
The maximum data signaling rate is up to 250 kbit/s.
- What is the driver output slew rate of the MAX3221MDBREP?
The driver output slew rate is up to 30 V/µs.
