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SN75LPE185

更新时间： 2024-11-18 22:53:31

品牌	Logo	应用领域
德州仪器 - TI		驱动器
页数	文件大小	规格书
13页	184K
描述
LOW-POWER MULTIPLE RS-232 DRIVERS/RECEIVERS WITH ENABLE

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SN75LPE185 数据手册

SN75LPE185

LOW-POWER MULTIPLE RS-232 DRIVERS/RECEIVERS

WITH ENABLE

SLLS256D – DECEMBER 1996 – REVISED OCTOBER 1998

DB, DW, NT, OR PW PACKAGE

Single-Chip RS-232 Interface for IBM PC

Compatible Serial Port

(TOP VIEW)

Designed to Transmit and Receive 4-µs Pulses

(Equivalent to 256 kbit/s)

RA1

RA2

RA3

DY1

DY2

RA4

DY3

RA5

RY1

RY2

RY3

DA1

DA2

RY4

DA3

RY5

GND

Standby Power Is Less Than 750 µW Maximum

Wide Supply-Voltage Range . . . 4.75 V to 15 V

Driver Output Slew Rates Are Internally

Controlled to 30-V/µs Maximum

RS-232 Bus-Pin ESD Protection Exceeds:

– 15 kV, Human-Body Model

– 8-kV IEC1000-4-2, Contact

– 15-kV IEC1000-4-2, Air Gap

Receiver Input Hysteresis . . . 1000 mV Typical

MODE 12

Three Drivers and Five Receivers Meet or

Exceed the Requirements of TIA/EIA-232-F and

ITU v.28 Standards

NC – No internal connection

Complements the SN75LP196

One Receiver Remains Active During WAKE-UP

Mode (100 µA Maximum)

Matches the Flow-Through Pinout of the

Industry-Standard SN75185, SN75C185, and

SN75LP185, With Additional Control Pins

Package Options Include Plastic Shrink

Small-Outline (DB), Small-Outline (DW), Thin

Shrink Small-Outline (PW), and Standard

Plastic (NT) DIPs

description

The SN75LPE185 is a low-power bipolar device containing three drivers and five receivers, with 15-kV ESD

protection on the bus pins, with respect to each other. Bus pins are defined as those pins that tie directly to the

serial-port connector, including GND. The pinout matches the flow-through design of the industry-standard

SN75185, SN75C185, and SN75LP185, with the addition of four pins for control signals. The flow-through

pinout of the device allows easy interconnection of the UART and serial-port connector of the IBM PC

compatibles. The SN75LPE185 provides a rugged, low-cost solution for this function with the combination of

bipolar processing and 15-kV ESD protection.

The SN75LPE185 has an internal slew-rate control to provide a maximum rate of change in the output signal

of 30 V/µs. The driver output swing is clamped at ±6 V to enable the higher data rates associated with this device

and reduce EMI emissions. Although the driver outputs are clamped, the outputs can handle voltages up to

±15 V without damage.

The device has flexible control options for power management when the serial port is inactive. A common

disable for all of the drivers and receivers is provided with the active-low enable (EN) input. The mode control

(MODE) input selects between the STANDBY and WAKE-UP modes. With a low-level input on the MODE pin

and a high-level input on the EN pin, one receiver remains active while the remaining drivers and receivers are

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

IBM and PC are trademarks of International Business Machines Corporation.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

12 3 4 5 6 7...13

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与SN75LPE185相关器件

型号	品牌	获取价格	描述	数据表
SN75LPE185_06	TI	获取价格	LOW-POWER MULTIPLE RS-232 DRIVERS/RECEIVERS WITH ENABLE
SN75LPE185DB	TI	获取价格	LOW-POWER MULTIPLE RS-232 DRIVERS/RECEIVERS WITH ENABLE
SN75LPE185DBR	TI	获取价格	LOW-POWER MULTIPLE RS-232 DRIVERS/RECEIVERS WITH ENABLE
SN75LPE185DBRE4	TI	获取价格	LOW-POWER MULTIPLE RS-232 DRIVERS/RECEIVERS WITH ENABLE
SN75LPE185DW	TI	获取价格	LOW-POWER MULTIPLE RS-232 DRIVERS/RECEIVERS WITH ENABLE
SN75LPE185DWE4	TI	获取价格	LOW-POWER MULTIPLE RS-232 DRIVERS/RECEIVERS WITH ENABLE
SN75LPE185DWR	TI	获取价格	LOW-POWER MULTIPLE RS-232 DRIVERS/RECEIVERS WITH ENABLE
SN75LPE185DWRE4	TI	获取价格	LOW-POWER MULTIPLE RS-232 DRIVERS/RECEIVERS WITH ENABLE
SN75LPE185NT	TI	获取价格	LOW-POWER MULTIPLE RS-232 DRIVERS/RECEIVERS WITH ENABLE
SN75LPE185NTE4	TI	获取价格	LOW-POWER MULTIPLE RS-232 DRIVERS/RECEIVERS WITH ENABLE

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