Overview
The MAX3222EIPWR is a dual-channel RS-232 line driver/receiver integrated circuit manufactured by Texas Instruments. This device is designed to provide a reliable and efficient interface between an asynchronous communication controller and a serial-port connector. It operates within a voltage range of 3V to 5.5V and supports data signaling rates up to 500 kbit/s. The MAX3222EIPWR features a dual charge-pump circuit and includes four small external capacitors, enabling operation from a single supply voltage. The device is packaged in a 20-pin TSSOP (PW) package and offers robust ESD protection, meeting the requirements of TIA/EIA-232-F and ITU v.28 standards.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VCC) | 3.3 to 5.5 | V |
| Operating Temperature Range | -40 to 85 | °C |
| Data Signaling Rate | Up to 500 kbit/s | |
| Driver Output Slew Rate | 30 V/μs | |
| ESD Protection (Human-body model, HBM) | ±15 kV | |
| ESD Protection (IEC 61000-4-2, Contact Discharge) | ±8 kV | |
| ESD Protection (IEC 61000-4-2, Air-gap Discharge) | ±15 kV | |
| Standby Current | 1 μA (typical) | |
| Package Type | TSSOP (PW), 20 pins | |
| External Capacitors | 4 × 0.1 μF |
Key Features
- ESD protection for RS-232 bus pins: ±15 kV Human-body model (HBM), ±8 kV IEC 61000-4-2 Contact discharge, and ±15 kV IEC 61000-4-2 Air-gap discharge.
- Meets or exceeds the requirements of TIA/EIA-232-F and ITU v.28 standards.
- Operates with a single 3V to 5.5V VCC supply.
- Supports data signaling rates up to 500 kbit/s.
- Includes two line drivers and two line receivers.
- Low standby current: 1 μA typical.
- Accepts 5V logic input with a 3.3V supply.
- Alternative high-speed pin-compatible device (1 Mbit/s) for SNx5C3222E.
- Power-down mode with low current consumption (1 μA) when PWRDOWN input is set low.
- Receiver outputs can be placed in the high-impedance state by setting EN high.
Applications
- Industrial PCs
- Wired networking
- Data center and networking equipment
- Notebooks
- Hand-held equipment
Q & A
- What is the operating voltage range of the MAX3222EIPWR?
The MAX3222EIPWR operates within a voltage range of 3V to 5.5V.
- What is the maximum data signaling rate supported by the MAX3222EIPWR?
The device supports data signaling rates up to 500 kbit/s.
- What type of ESD protection does the MAX3222EIPWR offer?
The device offers ±15 kV Human-body model (HBM), ±8 kV IEC 61000-4-2 Contact discharge, and ±15 kV IEC 61000-4-2 Air-gap discharge ESD protection.
- How many drivers and receivers does the MAX3222EIPWR have?
The device includes two line drivers and two line receivers.
- What is the typical standby current of the MAX3222EIPWR?
The typical standby current is 1 μA.
- Can the MAX3222EIPWR accept 5V logic input with a 3.3V supply?
- How can the MAX3222EIPWR be placed in power-down mode?
The device can be placed in power-down mode by setting the PWRDOWN input low, which draws only 1 μA from the power supply.
- What happens to the receivers during power-down mode?
During power-down mode, the receivers remain active while the drivers are placed in the high-impedance state.
- Can the receiver outputs be placed in the high-impedance state?
- What is the package type of the MAX3222EIPWR?
The device is packaged in a 20-pin TSSOP (PW) package.
- What are the external capacitor requirements for the MAX3222EIPWR?
The device requires four external capacitors, each 0.1 μF.
