Datasheet > STC3485E

STC3485E

更新时间： 2024-11-25 00:04:19

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STC485

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STC3485E 数据手册

STC International Limited

http://www.mcu-memory.com

STC3485E

3.3V-Powered,±15kV ESD-Protected,

and Slew-Rate-Limited True RS-485 Transceivers

General Description

The STC3485E is +15 KV ESD protected, slew-rate limited, ultra lower differential line transceivers which provide full RS485 compat-

ibility while operating from single 3.3V supply. Each part contains one driver and one receiver, which is designed for data transmission

with extended common mode range (-7V to 12V). The STC3485E features slew-rate limited driver that minimizes EMI and reduces

reflections caused by improperly terminated cables, allowing error-free data transmission at data rate up to 500kbps.

All devices feature enhanced electrostatic discharge (ESD) protection. All transmitter outputs and receiver inputs are protected to

±15kV using IEC 1000-4-2 Air-Gap Discharge and ±15kV using the Human Body Model.

Drivers are short-circuit current limited and are protected against excessive power dissipation by thermal shutdown circuitry that

places the driver outputs into a high-impedance state. The receiver input has a fail-safe feature that guarantees a logic-high output if

both inputs are open, shorted or idle.

Both parts have power up/down glitch free driver outputs permit live insertion or removal of transceiver from/to data bus. The

CMOS design offers significant power savings without sacrificing ruggedness against overload or ESD damage. Typical quiescent

current is only 500 µA while operating and 1 µA in shutdown.

The STC3485E are fully specified over the commercial an extended industrial temperature range and are available in 8-pin and DIP

packages.

Applications

Telecommunications

Low-Power RS-485 Transceivers

Integrated Services Digital Networks

Transceivers for EMI-Sensitive Applications

Packet Switching

Features

ESD Protection for RS-485 I/O Pins

±15kV— Human Body Model

±15kV— IEC 1000-4-2, Air-Gap Discharge

Operate from a Single 3.3V supply

Interoperable with +5V Logic

Slew-Rate Limited for Errorless Data Transmission

1 µA Low-Current Shutdown Mode

–7V to +12V Common-Mode Input Voltage Range

Allows up to 256 Transceivers on the Bus

Thermal Shutdown

Current-Limiting for Driver Overload Protection

Ordering Information

PART

TEMP. RANGE

-40°C to +85°C

PIN-PACKAGE

8 SO

STC3485EESA

STC3485EEPA

8 Plastic DIP

STC3485E Datasheet Rev.0.1, Dec.2005

Page 1 of 11

12 3 4 5 6 7...11

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与STC3485E相关器件

型号	品牌	获取价格	描述	数据表
STC3485EEPA	ETC	获取价格	3.3V-Powered, ±15kV ESD-Protected, and Slew-R
STC3485EESA	ETC	获取价格	STC485
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STC3800	CONNOR-WINFIELD	获取价格	INTEGRATED - STRATUM 3E TIMING SOURCE
STC3800_15	CONNOR-WINFIELD	获取价格	INTEGRATED - STRATUM 3E TIMING SOURCE
STC4.7-15C2	VISHAY	获取价格	Subminiature, Leaded Solid Tantalum Capacitors Polar or Non-Polar
STC4.715C2AJ	VISHAY	获取价格	CAPACITOR, TANTALUM, SOLID, POLARIZED, 15 V, 4.7 uF, THROUGH HOLE MOUNT, AXIAL LEADED
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