The MAX1489E is a quad, low-power line receiver designed for EIA/TIA-232, EIA/TIA-562, and CCITT V.28 communications. Each receiver input is protected against ±15kV electrostatic discharge (ESD) shocks. These inputs have a ±25V range and feature hysteresis and time-domain filtering. The outputs are TTL and CMOS compatible. The MAX1489E has a 120kbps guaranteed data rate. Supply current is typically 350µA.
The MAX1489E is a four‑channel, low‑power RS‑232 line receiver designed for harsh environments. Each input is protected against ±15 kV electrostatic discharge, offers a ±25 V input range, hysteresis, and time‑domain filtering. The device operates with a guaranteed data rate of 120 kbps and a typical supply current of 350 µA, and its outputs are TTL and CMOS compatible.
Typical applications include PC motherboards, modems, and other DTE/DCE interfaces that require robust ESD protection and low power consumption. The part is available in 14‑pin plastic DIP and SOIC packages and is pin‑compatible with several legacy devices such as the MC1489 and SN75189.
| Typical Supply Current | 350 µA |
|---|---|
| Guaranteed Data Rate | 120 kbps |
| Input Voltage Range | ±25 V |
| ESD Protection (Human Body Model) | ±15 kV |
| Operating Temperature (DIP) | 0 °C to +70 °C |
The device guarantees a data rate of 120 kbps.
It typically draws 350 µA of supply current.
It provides ±15 kV protection under the Human Body Model and IEC1000‑4‑2 standards.