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MAX3243

ACTIVE

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

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Data sheet

MAX3243

ACTIVE
Data sheet Order now

Product details

Drivers per package 3 Receivers per package 5 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 3 Receivers per package 5 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
TSSOP (PW) 28 62.08 mm² (9.7 mm × 6.4 mm) SSOP (DB) 28 79.56 mm² (10.2 mm × 7.8 mm) SOIC (DW) 28 184.37 mm² (17.9 mm × 10.3 mm)
  • Operates with 3V to 5.5V VCC supply
  • Single-chip and single-supply interface for IBM™ PC/AT™ serial port
  • RS-232 Bus-pin ESD protection of ±15kV Using Human-Body Model (HBM)
  • Meets or exceeds the requirements of TIA/EIA-232-F and ITU V.28 standards
  • Three drivers and five receivers
  • Operates up to 250kbit/s
  • Low active current: 300µA typical
  • Low standby current: 1µA typical
  • External capacitors: 4 × 0.1µF
  • Accepts 5V logic input with 3.3V supply
  • Always-active noninverting receiver output (ROUT2B)
  • Operating temperature
    • MAX3243C: 0°C to 70°C
    • MAX3243I: –40°C to 85°C
  • Serial-mouse driveability
  • Auto-powerdown feature to disable driver outputs when no valid RS-232 signal is sensed
  • Operates with 3V to 5.5V VCC supply
  • Single-chip and single-supply interface for IBM™ PC/AT™ serial port
  • RS-232 Bus-pin ESD protection of ±15kV Using Human-Body Model (HBM)
  • Meets or exceeds the requirements of TIA/EIA-232-F and ITU V.28 standards
  • Three drivers and five receivers
  • Operates up to 250kbit/s
  • Low active current: 300µA typical
  • Low standby current: 1µA typical
  • External capacitors: 4 × 0.1µF
  • Accepts 5V logic input with 3.3V supply
  • Always-active noninverting receiver output (ROUT2B)
  • Operating temperature
    • MAX3243C: 0°C to 70°C
    • MAX3243I: –40°C to 85°C
  • Serial-mouse driveability
  • Auto-powerdown feature to disable driver outputs when no valid RS-232 signal is sensed

The MAX3243 device consists of three line drivers, five line receivers which is ideal for DE-9 DTE interface. ±15kV ESD (HBM) protection pin to pin (serial- port connection pins, including GND). Flexible power features saves power automatically. Special outputs ROUT2B and INVALID are always enabled to allow checking for ring indicator and valid RS232 input.

The MAX3243 device consists of three line drivers, five line receivers which is ideal for DE-9 DTE interface. ±15kV ESD (HBM) protection pin to pin (serial- port connection pins, including GND). Flexible power features saves power automatically. Special outputs ROUT2B and INVALID are always enabled to allow checking for ring indicator and valid RS232 input.
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Technical documentation

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* Data sheet MAX3243 3V to 5.5V Multichannel RS-232 Line Driver and Receiver With ±15kV ESD (HBM) Protection datasheet (Rev. Q) PDF | HTML Aug 9, 2024

Design & development

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Simulation model

MAX3243 IBIS Model (Rev. A)

SLLM022 (236 KB) - IBIS model
Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
TSSOP (PW) 28 Ultra Librarian
SSOP (DB) 28 Ultra Librarian
SOIC (DW) 28 Ultra Librarian
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