MAX3318

2.5V、1µA、460kbps、RS-232兼容收发器


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说明

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).
MAX3316、MAX3317、MAX3318、MAX3319:典型工作电路 MAX3316、MAX3317、MAX3318、MAX3319:典型工作电路 放大+

关键特性

  • 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

  • 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
Part NumberVSUPPLY
(V)
TxRxData Rate
(kbps)
ICC
(mA)
Internal Charge PumpExt. CapsCap. Value
(µF)
Rx Active in ShutdnPackage/PinsBudgetary
Price
mintypnomSee Notes
MAX3316 
2.5
3
224600.3Yes40.12
SSOP/16
TSSOP/20
$4.51 @1k
MAX3318 
2.5
3
22
SSOP/20
TSSOP/20
$5.90 @1k
MAX3319 2.5 to 311
SSOP/16
$2.42 @1k
查看所有RS-232 Line Driver/Receivers (136)
Pricing Notes:
价格仅供参考,用于同类产品的比较。所提供报价为美元,需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题,请参考:价格与供货网站或与指定代理商联系。

质量和环境数据

产品可靠性报告: MAX3318.pdf 
无铅封装的锡(Sn)晶须报告
型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C  

备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

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