MAX1489ECSD+

MAX1489ECSD+ is a ±15kV ESD-protected, quad, low-power RS-232 line receiver. It is designed for EIA/TIA-232, EIA/TIA-562, and CCITT V.28 communications in harsh environments. 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. It is pin-compatible with the MC1489, MC14C89, SN75189, SN75C189, DS1489, and DS14C89. Applications include PC motherboards, modems, interfacing data terminal equipment (DTE) with data circuit-terminating equipment (DCE), and equipment meeting IEC1000-4-2 (formerly IEC801-2) or ±15kV ESD protection.

• Latch up free during an ESD event
• Low 350µA supply current
• Input hysteresis and time-domain filtering eliminate the need for external filtering
• Stable input thresholds
• Output short-circuit current is 60mA max at shorted to VCC
• Supply current is 260µA typical at VCC=5V, TA=+25°C
• Output propagation delay skew tPLH - tPHL is 70ns typ at VCC=5V, TA=+25°C
• Input noise rejection is 1.0µs typ at pulse amplitude=5V, VCC=5V, TA=+25°C
• 14 SO package
• 0°C to +70°C temperature range