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2.5V、1µA、460kbps、RS-232兼容收发器

产品详情

主要特征

应用/用途

Parametric specs for RS-232 Line Driver/Receivers
# Rx 1
# Tx 1
VSUPPLY (V) 2.5 to 3
Data Rate (kbps) (min) 460
ICC (mA) (typ) 0.3
Internal Charge Pump Yes
External Caps 4
Cap. Value (µF) (nom) 0.1
Package/Pins SSOP/16
Budgetary
Price (See Notes)
2.42
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技术文档

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参量

Parametric specs for RS-232 Line Driver/Receivers
# Rx 1
# Tx 1
VSUPPLY (V) 2.5 to 3
Data Rate (kbps) (min) 460
ICC (mA) (typ) 0.3
Internal Charge Pump Yes
External Caps 4
Cap. Value (µF) (nom) 0.1
Package/Pins SSOP/16
Budgetary
Price (See Notes)
2.42

主要特征

  • AutoShutdown Plus (MAX3318/MAX3319)
  • 300µA Operating Supply Current
  • 1µA Low-Power Shutdown with Receivers Active
  • Guaranteed 460kbps Data Rate
  • Guaranteed 4V/µs Slew Rate
  • RS-232 Compatible Down to 2.25V

应用/用途

  • 蜂窝电话
  • 全球定位系统(GPS)
  • 手持式电子书
  • 手持式仪表(PDA、掌上电脑)
  • 手持终端
  • 寻呼机
  • 掌上电脑

描述

The MAX3316–MAX3319 transceivers have a proprietary low-dropout transmitter output stage enabling RS-232-compatible performance from +2.25V to +3.0V with a dual-charge pump. These devices require only four 0.1µF capacitors, and are guaranteed to operate at data rates up to 460kbps.

The MAX3318/MAX3319 achieve a 1µA supply current using Maxim's revolutionary AutoShutdown Plus™ feature. These devices automatically enter a low-power shutdown mode when the RS-232 cable is disconnected or the transmitters of the connected peripherals are inactive for more than 30 seconds. They turn on again when they sense a valid transition at any transmitter or receiver input. AutoShutdown Plus saves power without changes to the existing BIOS or operating system. The MAX3318 is a 2-Tx/2-Rx device while the MAX3319 is a 1-Tx/1-Rx device. These devices also feature a logic-level output (READY) that asserts when the charge pump is regulating and the device is ready to begin transmitting.

The MAX3316/MAX3317 are 2-Tx/2-Rx transceivers. The MAX3317 features a 1µA shutdown mode that can be entered by driving active-low SHDN low. The MAX3317's receivers remain active while in shutdown mode, allowing external devices such as modems to be monitored using only 1µA supply current.

These devices are available in space-saving packages: MAX3316 (16-pin SSOP and 20-pin TSSOP), MAX3317/MAX3318 (20-pin SSOP and 20-pin TSSOP), and MAX3319 (16-pin SSOP).

简化框图

MAX3316、MAX3317、MAX3318、MAX3319:典型工作电路 MAX3316、MAX3317、MAX3318、MAX3319:典型工作电路 Zoom icon

技术文档

支持和培训

在Maxim的知识库中搜索技术问题的答案

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Maxim的专业工程师团队也会为您解答相应的技术问题,请访问Maxim的 支持中心