MAX3320A|MAX3320B|MAX3320L|MAX3320T - 3V至5.5V、高达250kbps、真RS-232收发器，带有4µA AutoShutdown Plus及上电复位

MAX3320A|MAX3320B|MAX3320L|MAX3320T - 3V至5.5V、高达250kbps、真RS-232收发器，带有4µA AutoShutdown Plus及上电复位 - 美信芯片 - Maxim美信半导体高性能芯片品质 - 美信半导体

产品概述

The MAX3320 combines a microprocessor (µP) supervisory circuit with an RS-232 transceiver. The power-on reset performs a single function: it asserts a reset signal whenever the VCC supply voltage declines below a preset threshold, staying asserted for at least 100ms after VCC rises above the reset threshold. The MAX3320 has an active-low RESET output, which is guaranteed to be in the correct state for VCC down to 1V. The reset comparator is designed to ignore fast transients on VCC. Reset thresholds suitable for operation with a variety of supply voltages are available.

The MAX3320 transceivers have a proprietary low-dropout transmitter output stage, enabling true RS-232 performance with a dual charge pump powered from a +3V to +5.5V supply. The device requires only four small 0.1µF external charge-pump capacitors, and is guaranteed to run at data rates of up to 250kbps. It comes in the space-saving 20-pin SSOP package.

关键特性

以下关键特性由Maxim美信半导体提供：

Precise Monitoring of 5V and 3.3V Power-Supply Voltages:

100ms (min) Power-On active-low RESET Pulse Width

Power-Supply Transient Immunity

Guaranteed active-low RESET Valid to VCC = 1V

4µA Supply Current Achieved with AutoShutdown Plus™

Receivers Always Active

Power-On Reset Always Active

4µA Low-Power Shutdown

250kbps Guaranteed Data Rate

热门应用

手持式装置

掌上电脑

外设

便携式电池供电设备

打印机

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