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MAX3221E

ACTIVE

3- to 5.5-V single channel 250kbps RS-232 line driver/receiver with +/-15-kV IEC-ESD protection

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Data sheet

MAX3221E

ACTIVE
Data sheet Order now

Product details

Drivers per package 1 Receivers per package 1 Logic voltage (min) (V) 3.3 Data rate (max) (Mbps) 0.25 Main supply voltage (nom) (V) 3.3, 5 Features Auto-Powerdown ESD HBM (kV) 15 Rating Catalog Operating temperature range (°C) -40 to 85 Vout (typ) (V) 5.4
Drivers per package 1 Receivers per package 1 Logic voltage (min) (V) 3.3 Data rate (max) (Mbps) 0.25 Main supply voltage (nom) (V) 3.3, 5 Features Auto-Powerdown ESD HBM (kV) 15 Rating Catalog Operating temperature range (°C) -40 to 85 Vout (typ) (V) 5.4
SSOP (DB) 16 48.36 mm² 6.2 x 7.8 TSSOP (PW) 16 32 mm² 5 x 6.4
  • ESD protection for RS-232 pins
    • ±15kV Human-body model (HBM)
    • ±8kV (IEC 61000-4-2, Contact discharge)
    • ±15kV (IEC 61000-4-2, 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
  • Low standby current: 1µA typical
  • Accepts 5V logic input with 3.3V supply
  • Auto-power-down feature automatically disables drivers for power savings
  • Alternative high-speed device (1Mbit/s)
    • SN75C3221E and SN65C3221E
  • ESD protection for RS-232 pins
    • ±15kV Human-body model (HBM)
    • ±8kV (IEC 61000-4-2, Contact discharge)
    • ±15kV (IEC 61000-4-2, 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
  • Low standby current: 1µA typical
  • Accepts 5V logic input with 3.3V supply
  • Auto-power-down feature automatically disables drivers for power savings
  • Alternative high-speed device (1Mbit/s)
    • SN75C3221E and SN65C3221E

The MAX3221E is a single driver, single receiver RS-232 solution operating from a single VCC supply. The RS-232 pins provide IEC 61000-4-2 ESD protection. The device meets the requirements of TIA/EIA-232-F and provides the electrical interface between an asynchronous communication controller and the serial-port connector. The charge pump and four small external capacitors allow operation from a single 3V to 5.5V supply. These devices operate at data signaling rates up to 250kbit/s and a maximum of 30V/µs driver output slew rate.

Flexible control options for power management are available. Auto-power down disables driver and charge pump when the receiver is disconnected or the remote driver is power down. The drivers can be manually enabled or disabled. INVALID output goes low when receiver input is unconnected or power off.

The MAX3221E is a single driver, single receiver RS-232 solution operating from a single VCC supply. The RS-232 pins provide IEC 61000-4-2 ESD protection. The device meets the requirements of TIA/EIA-232-F and provides the electrical interface between an asynchronous communication controller and the serial-port connector. The charge pump and four small external capacitors allow operation from a single 3V to 5.5V supply. These devices operate at data signaling rates up to 250kbit/s and a maximum of 30V/µs driver output slew rate.

Flexible control options for power management are available. Auto-power down disables driver and charge pump when the receiver is disconnected or the remote driver is power down. The drivers can be manually enabled or disabled. INVALID output goes low when receiver input is unconnected or power off.
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* Data sheet MAX3221E 3V to 5.5V Single-Channel RS-232 Line Driver and Receiver With ±15kV IEC ESD Protection datasheet (Rev. D) PDF | HTML 17 Jul 2024

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