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RS-232 收发器

MAX3227E

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具有 +/-15kV IEC-ESD 保护的 3V 至 5.5V 单通道 1Mbps RS-232 线路驱动器/接收器

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MAX3227E

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米6体育平台手机版_好二三四详情

Drivers per package 1 Receivers per package 1 Logic voltage (min) (V) 3.3 Data rate (max) (Mbps) 1 Main supply voltage (nom) (V) 3.3, 5 Features Auto-Powerdown Plus ESD HBM (kV) 15 Rating Catalog Operating temperature range (°C) -40 to 85 Vout (typ) (V) 5.4
Drivers per package 1 Receivers per package 1 Logic voltage (min) (V) 3.3 Data rate (max) (Mbps) 1 Main supply voltage (nom) (V) 3.3, 5 Features Auto-Powerdown Plus ESD HBM (kV) 15 Rating Catalog Operating temperature range (°C) -40 to 85 Vout (typ) (V) 5.4
SSOP (DB) 16 48.36 mm² 6.2 x 7.8
  • Meets or Exceeds the Requirements of TIA/EIA-232-F and ITU v.28 Standards
  • Operates With 3-V to 5.5-V VCC Supply
  • Operates at Least 1 Mbit/s
  • Low Standby Current . . . 1 µA Typ
  • External Capacitors . . . 4 × 0.1 µF
  • Accepts 5-V Logic Input With 3.3-V Supply
  • Designed to Be Interchangeable With Maxim™ MAX3227E
  • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
  • ESD Protection for RS-232 I/O Pins
    • ±15 kV — Human-Body Model
    • ±8 kV — IEC61000-4-2, Contact Discharge
    • ±15 kV — IEC61000-4-2, Air-Gap Discharge
  • Auto-Powerdown Plus Feature Automatically Disables Drivers for Power Savings
  • Packaged in Plastic Shrink Small-Outline Package
  • APPLICATIONS
    • Battery-Powered, Hand-Held, and Portable Equipment
    • PDAs and Palmtop PCs
    • Notebooks, Sub-Notebooks, and Laptops
    • Digital Cameras
    • Mobile Phones and Wireless Devices

All trademarks are the property of their respective owners.
  • Meets or Exceeds the Requirements of TIA/EIA-232-F and ITU v.28 Standards
  • Operates With 3-V to 5.5-V VCC Supply
  • Operates at Least 1 Mbit/s
  • Low Standby Current . . . 1 µA Typ
  • External Capacitors . . . 4 × 0.1 µF
  • Accepts 5-V Logic Input With 3.3-V Supply
  • Designed to Be Interchangeable With Maxim™ MAX3227E
  • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
  • ESD Protection for RS-232 I/O Pins
    • ±15 kV — Human-Body Model
    • ±8 kV — IEC61000-4-2, Contact Discharge
    • ±15 kV — IEC61000-4-2, Air-Gap Discharge
  • Auto-Powerdown Plus Feature Automatically Disables Drivers for Power Savings
  • Packaged in Plastic Shrink Small-Outline Package
  • APPLICATIONS
    • Battery-Powered, Hand-Held, and Portable Equipment
    • PDAs and Palmtop PCs
    • Notebooks, Sub-Notebooks, and Laptops
    • Digital Cameras
    • Mobile Phones and Wireless Devices

All trademarks are the property of their respective owners.

The MAX3227E consists of one line driver, one line receiver, and a dual charge-pump circuit with ±15-kV IEC ESD protection pin to pin (serial-port connection pins, including GND). The device meets the requirements of TIA/EIA-232-F and provides the electrical interface between an asynchronous communication controller and the serial-port connector. The charge pump and four small external capacitors allow operation from a single 3-V to 5.5-V supply. This device operates at data-signaling rates of 1 Mbit/s in normal operating mode and a maximum of 30-V/µs driver output slew rate. This device also features a logic-level output (READY) that asserts when the charge pump is regulating and the device is ready to begin transmitting.

The MAX3227E achieves a 1-µA supply current using the auto-powerdown plus feature. This device automatically enters a low-power powerdown mode when the RS-232 cable is disconnected or the drivers of the connected peripherals are inactive for more than 30 s. They turn on again when they sense a valid transition at any driver or receiver input. Auto-powerdown saves power without changes to the existing BIOS or operating system.

The MAX3227EC is characterized for operation from 0°C to 70°C. The MAX3227EI is characterized for operation from -40°C to 85°C.

The MAX3227E consists of one line driver, one line receiver, and a dual charge-pump circuit with ±15-kV IEC ESD protection pin to pin (serial-port connection pins, including GND). The device meets the requirements of TIA/EIA-232-F and provides the electrical interface between an asynchronous communication controller and the serial-port connector. The charge pump and four small external capacitors allow operation from a single 3-V to 5.5-V supply. This device operates at data-signaling rates of 1 Mbit/s in normal operating mode and a maximum of 30-V/µs driver output slew rate. This device also features a logic-level output (READY) that asserts when the charge pump is regulating and the device is ready to begin transmitting.

The MAX3227E achieves a 1-µA supply current using the auto-powerdown plus feature. This device automatically enters a low-power powerdown mode when the RS-232 cable is disconnected or the drivers of the connected peripherals are inactive for more than 30 s. They turn on again when they sense a valid transition at any driver or receiver input. Auto-powerdown saves power without changes to the existing BIOS or operating system.

The MAX3227EC is characterized for operation from 0°C to 70°C. The MAX3227EI is characterized for operation from -40°C to 85°C.
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* 数据表 3-V to 5.5-V Single-Channel RS-232 Line Driver/Receiver With +/-15-kV IEC ESD Pr 数据表 (Rev. A) 2007年 6月 19日
应用手册 RS-232 术语表和选择指南 PDF | HTML 英语版 PDF | HTML 2023年 6月 7日

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