ST3243EC

批量生产
Design Win

15 kV ESD保护3 - 5.5V 400 KBPS RS-232收发器,支持自动断电,温度范围[0℃, 70℃]

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产品概述

描述

The ST3243E device consists of 3 drivers, 5 receivers and a dual charge-pump circuit. The device meets the requirements of EIA/TIA and V.28/V.24 communication standards providing high data rate capability and enhanced electrostatic discharge (ESD) protection. All transmitter outputs and receiver input are protected to ±8 kV USING IEC 1000-4-2 contact discharge and ±15 kV using the human body model. The receiver R2 is always active to implement a wake-up feature for serial port.

The ST3243E has a proprietary low-dropout transmitter output stage enabling true RS-232 performance from a 3.0 V to 5.5 V supply with a dual charge pump. The device is guaranteed to run at data rates of 250kbps while maintaining RS-232 output levels.

The auto-powerdown feature functions when FORCEON is low and FORCEOFF is high. During this mode of operation, if the device does not sense a valid RS-232 signal, the driver outputs are disabled. If FORCEOFF is set low, both drivers and receivers (expert R2B) are shut off, and supply current is reduced to 1 µA.

Disconnecting the serial port or turning off the peripheral drives causes the auto power-down condition to occur.

Auto power-down can be disabled when FORCEON and FORCEOFF are high, and should be done when driving a serial mouse. With auto power-down enabled, the device is activated automatically when a valid signal is applied to any receiver input.

Typical application are in notebook, subnotebook, palmtop computers, battery-powered equipment, hand-held equipment, peripherals and printers.

  • 所有功能

    • Meet EIA/TIA-232 specifications down to 3 V
    • 0.1 µF external capacitors
    • ESD protection for RS-232 I/O pins: ±8 kV IEC 1000-4-2 contact discharge ±15 kV human body model
    • 250 Kbps minimum guaranteed data rate
    • 1 µA supply current achieved when in auto power-down
    • Guaranteed mouse drive ability
    • Available in SO-28, SSOP-28, TSSOP28 and flip-chip28 packages
    • Guaranteed 6 V/ms slew rate range

EDA符号、封装和3D模型

STMicroelectronics - ST3243EC

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质量与可靠性

产品型号 Marketing Status 等级规格 符合RoHS级别 材料声明**
ST3243ECTR-E
批量生产
TSSOP-28 工业 Ecopack3

ST3243ECTR-E

Package:

TSSOP-28

Material Declaration**:

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Marketing Status

批量生产

Package

TSSOP-28

Grade

Industrial

RoHS Compliance Grade

Ecopack3

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样片和购买

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ST3243ECTR-E
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ST3243ECTR-E 批量生产

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(*) 建议转售单价(美元)仅用于预算用途。如需以当地货币计价的报价,请联系您当地的 ST销售办事处 或我们的 经销商