供应 ZT3485LEEN 通信接口芯片

ZT3485LEEN General Description

The ZT3485E series devices are 3V differential data line transceivers for RS485/RS422 communication that

consist of one driver and one receiver with high level of ESD protection. They are designed for balanced

transmission lines interface that meet ANSI standard TIA/EIA-485-A and ISO 8482:1987(E) specifi cations.

The ZT3485E series devices span out with half or full duplex, data rate guaranteed at 250kbps or 16Mbps,

and allow one unit load that fan out 32 devices sharing a common bus. The I/Os are enhanced-electrostatic

discharge (ESD) protected, exceeding ±15kV Human Body Model (HBM).

ZT3485LEEN Features

• Meets or exceeds the requirements of ANSI Standard TIA/EIA-485-A and ISO 8482:1987(E) specifi cations for V CC at +3.3V ±10%

• Low quiescent current – 0.5mA typ., 1.5mA max.

• Low shutdown current (where applicable) - 0.05μA typical, 10μA max.

• Guaranteed standard data rate 250kbps or 16Mbps

• True Fail-Safe (Open and Short) Receiver

• Thermal shutdown protection

• -7V to +12V common-mode input voltage range

• Half-Duplex or Full-Duplex confi guration

• Allows up to 1 unit load (32 devices) on the same common bus

• Controlled driver output slew rate and receiver input fi ltering

• Active-high driver enable and active-low receiver enable

• ESD Protection on bus terminals ±15kV Human Body Model (HBM)

• Drop-in Replacements for MAX3483E, MAX3485E, MAX3488E, MAX3490E, MAX3491E

• High fanout driving 1/8 unit load (256 devices) available on ZT3070E Series

ZT3485LEEN系列型号及ZT3485LEEN封装