مدار مجتمع (آی سی) آی‌سی واسط ارتباطی واسط ویژه

Product Attributes

Introduction

MC721 is a single-chip integrated slave transceiver for two-wire M-Bus slave devices and repeaters. The transceiver provides all functions required to meet the M-Bus physical layer requirements described in European standards EN 13757-2 and EN 1434-3. It includes programmable power levels up to 2 unit loads, available to external circuits via a 3.3V LDO regulator. The MC721 supports a maximum M-Bus communication rate of up to 38,400 baud (half-duplex).

Features

• Single-chip instrumentation bus transceiver
• UART communication rate up to 38,400 baud
• Integrated 3.3V VDD LDO regulator with peak current capability extended to 15mA, supporting slave device power supply from bus or external source
• Adjustable I/O levels for low bus voltage operation
• Extended current budget for external circuits: minimum 0.88mA
• Polarity-independent
• Power failure detection
• Fast start-up — no external transistor required on STC pin
• Industrial ambient temperature range: -40℃ to +85℃
• Available in 16-pin SOIC package
• Lead-free device

Applications

• Multi-energy utility meters
• Water meters
• Gas meters
• Electricity meters
• Heating systems