Texas Instruments MAX3221E RS-232 Line Driver/Receiver
Texas Instruments MAX3221E RS-232 Line Driver/Receiver offers IEC 61000-4-2 ESD protection and meets the requirements of TIA/EIA-232-F. This single-driver, single-receiver RS-232 solution operates from a single VCC supply and provides the electrical interface between an asynchronous communication controller and the serial-port connector. The MAX3221E device features data signaling rates up to 250kbit/s and a 30V/µs maximum driver output slew rate. The charge pump and four small external capacitors allow operation from a single 3V to 5.5V supply voltage range. The MAX3221E driver/receiver provides flexible control options for power management and an auto-power-down for power savings. Typical applications include industrial PCs, wired networking, data center and enterprise computing, battery-powered systems, PDAs, notebooks, laptops, palmtop PCs, and hand-held equipment.
Features
- ESD protection for RS-232 pins:
- ±15kV Human-Body Model (HBM)
- ±8kV (IEC 61000-4-2 and contact discharge)
- ±15kV (IEC 61000-4-2 and air-gap discharge)
- Meets or exceeds the requirements of TIA/EIA-232-F and ITU v.28 standards
- Operates with 3V to 5.5V VCC supply
- Operates up to 250kbit/s
- One driver and one receiver
- 1µA typical low standby current
- Accepts 5V logic input with a 3.3V supply
- Auto-power-down feature automatically disables drivers for power savings
- SN75C3221E and SN65C3221E alternative high-speed device (1Mbit/s)
Applications
- Industrial PCs
- Wired networking
- Data center and enterprise computing
- Battery-powered systems
- PDAs
- Notebooks
- Laptops
- Palmtop PCs
- Hand-held equipment
Block Diagram
Typical Operating Circuit and Capacitor Values
Related products
Texas Instruments MAX3222E Multichannel RS-232 Line Driver/Receiver
Includes 2-drivers, 2-receivers, and dual charge-pump circuit with ±15kV ESD protection pin-to-pin.
發佈日期: 2025-01-28
| 更新日期: 2025-04-21