LMS1487CM

• Product Introduction

peculiarity

RS-485-A and RS-422-B in accordance with ANSI standards Data transfer rates up to 2.5 Mbps 5V single supply voltage operation, Wide input and output voltage range Thermal shutdown protection Short-circuit protection Low quiescent current 320μA Up to 128 transceivers are allowed on the bus Open circuit fail-safe reception Extended operating temperature range of -40°C to 85°C Easy replacement to MAX1487 It is available in 8-pin SOIC and 8-pin DIP packages

illustrate

LMS1487 is a bidirectional data communication line transceiver design on a low-power differential bus/high-speed multipoint bus transmission line. It is designed to balance transmission lines. It complies with the TIA/EIA RS-422-B, TIA/EIA RS-485-A and ITU recommendations and V.11 and X.27 of the ANSI standard. LMS1487 combines a three-state ™ differential line driver and a differential input receiver, both of which operate from a single 5.0V supply. Drive and receive high-effective and active-low, externally connected directional control functions respectively. The differential input internal connections of the driver and receiver form a differential input/output (I/O) bus design that provides a minimum load bus whenever the driver is disabled or the V CC = 0V port. These ports feature a wide range of positive and negative common-mode voltages, making the device suitable for multi-point applications in noisy environments. LMS1487 is an 8-pin SOIC and an 8-pin DIP package. This is a drop-down socket to replace the MAX1487 for Maxim

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Low-power RS-485 system Network hubs, bridges, and routers Point of sale equipment (ATMs, barcode scanners,...) Local Area Network (LAN) Integrated Service Digital Network (ISDN) Industrial programmable logic controllers High-speed serial and parallel applications Application in multi-noisy environments