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MAX3243E中文资料具有 +/-15kV IEC-ESD 保护的 3V 至 5.5V 多通道 500kbps RS-232 线路驱动器/接收器数据手册TI规格书

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厂商型号

MAX3243E

参数属性

MAX3243E 封装/外壳为28-SSOP(0.209",5.30mm 宽);包装为卷带(TR);类别为集成电路(IC)的驱动器接收器收发器;产品描述:IC TRANSCEIVER FULL 3/5 28SSOP

功能描述

具有 +/-15kV IEC-ESD 保护的 3V 至 5.5V 多通道 500kbps RS-232 线路驱动器/接收器
IC TRANSCEIVER FULL 3/5 28SSOP

封装外壳

28-SSOP(0.209",5.30mm 宽)

制造商

TI Texas Instruments

中文名称

德州仪器

数据手册

原厂下载下载地址下载地址二

更新时间

2026-1-25 16:10:00

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MAX3243E规格书详情

描述 Description

The MAX3243E device consists of three line drivers, five line receivers, and a dual charge-pump circuit with ±15-kV ESD (HBM and IEC61000-4-2, Air-Gap Discharge) and ±8-kV ESD (IEC61000-4-2, ContactDischarge) protection on serial-port connection pins. The device meets the requirements of TIA/EIA-232-F and provides the electrical interface between an asynchronous communication controller and the serial-portconnector. This combination of drivers and receivers matches that needed for the typical serial port used in an IBM PC/AT, or compatible. The charge pump and four small external capacitors allow operation from a single 3-V to 5.5-V supply. In addition, the device includes an always-active noninverting output (ROUT2B), which allows applicationsusing the ring indicator to transmit data while the device is powered down. The device operates at data signaling rates up to 250 kbit/s and a maximum of 30-V/µs driver output slew rate.

Flexible control options for power management are available when the serial port is inactive. 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 (except ROUT2B) are shut off, and the supply current is reduced to 1 µA. Disconnecting the serial port or turning off the peripheral drivers causes the auto-powerdown condition to occur.

Auto-powerdown can be disabled when FORCEON and FORCEOFF are high, and should be done when driving a serial mouse. With auto-powerdown enabled, the device is activated automatically when a valid signal is applied to any receiver input. The INVALID output is used to notify the user if an RS-232 signal is present at any receiver input. INVALID is high (valid data) if any receiver input voltage is greater than 2.7 V or less than –2.7 V or has been between –0.3 V and 0.3 V for less than30 µs. INVALID is low (invalid data) if all receiver input voltages are between –0.3 V and 0.3 V for more than 30 µs. Refer to Figure 5 for receiver input levels.

The MAX3243EC is characterized for operation from 0°C to 70°C. The MAX3243EI is characterized for operation from –40°C to 85°C.

特性 Features

• Single-Chip and Single-Supply Interface for IBM PC/AT Serial Port
• ESD Protection for RS-232 Bus Pins
• ±15-kV Human-Body Model (HBM)
• ±8-kV IEC61000-4-2, Contact Discharge
• ±15-kV IEC61000-4-2, Air-Gap Discharge

• Meets or Exceeds Requirements of TIA/EIA-232-F and ITU v.28 Standards
• Operates With 3-V to 5.5-V VCC Supply
• Always-Active Noninverting Receiver Output (ROUT2B)
• Designed to Transmit at a Data Rate up to500 kbit/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 MAX3243E
• Serial-Mouse Driveability
• Auto-Powerdown Feature to Disable Driver Outputs When No Valid RS-232 Signal Is Sensed
• Package Options Include Plastic Small-Outline (DW), Shrink Small-Outline (DB), and Thin Shrink Small-Outline (PW) Packages

简介

MAX3243E属于集成电路(IC)的驱动器接收器收发器。由TI制造生产的MAX3243E驱动器,接收器,收发器该系列产品的主要功能是提供必需的硬件资源,以通过延长电缆或印制线进行通信。确切的功能会因所采用的通信协议而异,可能包括诸如瞬态抑制之类的功能,这些功能对于通信用途可能并非绝对必要,但对于可能的使用环境却是明智之选。

技术参数

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  • 制造商编号

    :MAX3243E

  • 生产厂家

    :TI

  • Receivers per package

    :5

  • Logic voltage (Min) (V)

    :3.3

  • Data rate (Max) (kbps)

    :500

  • Main supply voltage (Nom) (V)

    :3.3

  • Features

    :Auto-Powerdown

  • ESD HBM (kV)

    :15

  • Rating

    :Catalog

  • Operating temperature range (C)

    :-40 to 85

  • Vout (Typ) (V)

    :5.4

供应商 型号 品牌 批号 封装 库存 备注 价格
MAXIM
22+
SSOP
8200
原装现货库存.价格优势
询价
TI
17+
SSOP28
6200
100%原装正品现货
询价
24+
SOP
3000
公司现货
询价
MAX
23+
TSSOP-28
5000
原装正品,假一罚十
询价
MAXIM
18+
SOP24
85600
保证进口原装可开17%增值税发票
询价
MAXIM
1716+
?
6500
只做原装进口,假一罚十
询价
TI
三年内
1983
只做原装正品
询价
MAX
25+
SMD
18000
原厂直接发货进口原装
询价
最新
2000
原装正品现货
询价
TI
24+
SSOP
6000
进口原装正品假一赔十,货期7-10天
询价