MAX3244:1µA电源电流、1Mbps、3.0V至5.5V、RS-232收发器,提供AutoShutdown Plus

The MAX3224–MAX3227/MAX3244/MAX3245 are 3V-powered EIA/TIA-232 and V.28/V.24 communications interfaces with automatic shutdown/wakeup features and high data-rate capabilities. All devices 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, and the UART driving the transmitter inputs is 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 MAX3225/MAX3227/MAX3245 also feature MegaBaud™ operation, guaranteeing 1Mbps for highspeed applications such as communicating with ISDN modems. The MAX3224/MAX3226/MAX3244 guarantee 250kbps operation. The transceivers have a proprietary low-dropout transmitter output stage enabling true RS-232 performance from a +3.0V to +5.5V supply with a dual charge pump. The charge pump requires only four small 0.1µF capacitors for operation from a 3.3V supply. The MAX3224-MAX3227 feature a logic-level output (READY) that asserts when the charge pump is regulating and the device is ready to begin transmitting. All devices are available in a space-saving TSSOP and SSOP packages.

关键特性
  • For Smaller Packaging:
    • MAX3228/MAX3229: +2.5V to +5.5V RS-232 Transceivers in UCSP™
  • For Low-Voltage or Data Cable Applications:
    • MAX3380E/MAX3381E: +2.35V to +5.5V, 1µA, 2 Tx/2 Rx RS-232 Transceivers with ±15kV ESD-Protected I/O and Logic Pins
  • For Integrated ESD Protection:
    • MAX3222E/MAX3232E/MAX3237E/MAX3241E/MAX3246E: ±15kV ESD-Protected, Down to 10nA, +3.0V to +5.5V, Up to 1Mbps, True RS-232 Transceivers (MAX3246E Available in UCSP)
MAX3224、MAX3225、MAX3226、MAX3227、MAX3244、MAX3245:引脚配置
MAX3224、MAX3225、MAX3226、MAX3227、MAX3244、MAX3245:引脚配置
应用
  • 电池供电设备
  • 蜂窝电话
  • 手持式装置
  • 笔记本电脑、亚笔记本电脑与掌上电脑
  • 外设
  • 打印机
数据手册DataSheet
语言下载文件备注
英文MAX3224-MAX3245.pdfRev 5; 02/2011
关键参数
Part NumberVSUPPLY
(V)
TxRxData Rate
(kbps)
ICC
(mA)
Internal Charge PumpExt. CapsCap. Value
(µF)
Rx Active in ShutdnPackage/PinsBudgetary
Price
mintypnomSee Notes
MAX3224
  • 3.3
  • 5
222500.3Yes40.12
  • SSOP/20
  • TQFN/20
  • TSSOP/20
$2.56 @1k
MAX32252210002
  • PDIP(N)/20
  • SSOP/20
  • TQFN/20
  • TSSOP/20
$2.56 @1k
MAX3226112502SSOP/16$1.67 @1k
MAX32271110002SSOP/16$1.67 @1k
MAX3244352505
  • SOIC(W)/28
  • SSOP/28
$1.83 @1k
MAX32453510005
  • SOIC(W)/28
  • SSOP/28
$1.83 @1k
技术资料
订购型号
型号状况推荐替代产品封装温度RoHS/无铅
MAX3244CAI停止供货MAX3244CAI+SSOP,;28引脚;81.6mm²0°C至+70°C参考数据资料
MAX3244CAI+生产中SSOP,;28引脚;81.6mm²0°C至+70°CRoHS/无铅:无铅
MAX3244CAI+T生产中SSOP,;28引脚;81.6mm²0°C至+70°CRoHS/无铅:无铅
MAX3244CAI-T停止供货MAX3244CAI+TSSOP;28引脚0°C至+70°C参考数据资料
MAX3244CWI停止供货MAX3244CWI+SOIC(W),;28引脚;192.8mm²0°C至+70°CRoHS/无铅:否
MAX3244CWI+生产中SOIC(W),;28引脚;192.8mm²0°C至+70°CRoHS/无铅:无铅
MAX3244CWI+T停止供货W.SO;0°C至+70°C参考数据资料
MAX3244CWI-T停止供货W.SO;28引脚0°C至+70°C参考数据资料
MAX3244EAI停止供货MAX3244EAI+SSOP,;28引脚;81.6mm²-40°C至+85°C参考数据资料
MAX3244EAI+生产中SSOP,;28引脚;81.6mm²-40°C至+85°CRoHS/无铅:无铅
型号状况推荐替代产品封装:类型 引脚 占位面积封装图 编码/变更 *温度RoHS/无铅?
MAX3244EAI+T生产中SSOP,;28引脚;81.6mm²-40°C至+85°CRoHS/无铅:无铅
MAX3244EAI-T停止供货MAX3244EAI+TSSOP;28引脚-40°C至+85°C参考数据资料
MAX3244EWI停止供货SOIC(W),;28引脚;192.8mm²-40°C至+85°CRoHS/无铅:否
MAX3244EWI-T停止供货W.SO;-40°C至+85°C参考数据资料
MAX3224-MAX3245.pdf MAX3245
Determining Clock Accuracy Requirements for UART Communications MAX3206E
MAX3224-MAX3245.pdf MAX3245