DS9097U Dallas Semiconducotr, DS9097U Datasheet

DS9097U

Manufacturer Part Number

DS9097U

Description

Universal 1-Wire COM Port Adapter

Manufacturer

Dallas Semiconducotr

Datasheet

1.DS9097U.pdf (2 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

DS9097U-E25#

Manufacturer:

Maxim Integrated Products

Quantity:

135

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

DS9097U-S09#

Manufacturer:

Maxim

Quantity:

Current page: 1 of 2
Download datasheet (27Kb)

FEATURES

PIN ASSIGNMENT

DB-25: TXD (2), RXD (3), DTR (20), RTS (4),

PC-Ground (7); all other pins not connected

DB-9: TXD (3), RXD (2), DTR (4), RTS (7),

PC-Ground (5); all other pins not connected

NOTE:

The external supply for the DS9097U-E25 must

provide well regulated 12V @ 10 mA minimum,

center = GND, outer ring = V+ (Newark

Electronics Stock No. 84F2081, Allied

Electronics Stock No. 928-9895, Stancor Model

STA-300R, or equivalent)

ORDERING INFORMATION

DS9097U-009

DS9097U-S09

DS9097U-E25

www.dalsemi.com

True-ground interface to an RS232 COM Port

for reading and writing 1-Wire devices

Works with bipolar as well as unipolar logic

signals

Compatible to COM ports of (±)5V to (±)12V

(DB-9 version only) or (±)6V to (±)12V

(DB-25 version)

Supports reading and writing at regular and

Overdrive speeds

Provides strong pull-up to 5V for Tempera-

ture-, Crypto- and EEPROM 1-Wire devices

Programs 1-Wire EPROM devices (DB-25

version with external 12V power supply only)

Communicates at data rates of 9.6 (default),

19.2, 57.6 and 115.2 kbits/s

Standard DB-9 or DB-25 female connector

and 6-lead RJ-11 connector for easy attach-

ment of standard 1-Wire cables and probes

Includes DS2502 identification chip

(DS9097U-009 only)

DB-9, with DS2502 ID chip

DB-9, no ID chip

DB-25, with EPROM write

Universal 1-Wire

1 of 2

PACKAGE OUTLINE

DB-09 version

DB-25 version

SCHEMATIC

DB-9 version

DB-25 version

RS232

COM Port

RS232

COM Port

RTS

DTR

RXD

TXD

GND

RTS

DTR

RXD

TXD

GND

SIDE VIEW

Reg.

COM Port Adapter

(for illustration)

2480B

DS9097U-009

REAR VIEW

only

REAR VIEW

Power Jack

Chip

DS9097U

RJ-11 pin 1

2.1mm

power jack

- contact

+ contact

RJ-11 pin 1

RJ-11

1-W

GND

1-W

GND

091100

Related parts for DS9097U

DS9097U Summary of contents

Page 1

... PC-Ground (7); all other pins not connected DB-9: TXD (3), RXD (2), DTR (4), RTS (7), PC-Ground (5); all other pins not connected NOTE: The external supply for the DS9097U-E25 must provide well regulated 12V @ 10 mA minimum, center = GND, outer ring = V+ (Newark Electronics Stock No. 84F2081, Allied Electronics Stock No. 928-9895, Stancor Model ...

Page 2

... Without EPROM programming the external power may be anywhere in the range 9V. For EPROM programming the voltage must be at 12V in any case. Before using an externally powered DS9097U-E25 with a COM port of less than ( ) 5V check whether the COM port will not be damaged its RXD input. ...

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