LX5251CPW Semicoa Semiconductors, LX5251CPW Datasheet

LX5251CPW

Manufacturer Part Number

LX5251CPW

Description

Manufacturer

Semicoa Semiconductors

Type

SCSI Terminationr

Datasheet

1.LX5251CPW.pdf (8 pages)

Specifications of LX5251CPW

Number Of Bits

Operating Supply Voltage (typ)

3.3/5V

Operating Supply Voltage (max)

5.25V

Package Type

TSSOP

Mounting

Surface Mount

Pin Count

Operating Temperature Classification

Commercial

Lead Free Status / RoHS Status

Compliant

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

LX5251CPW

Manufacturer:

Exar

Quantity:

Company:

Meier Automation Equipment Co., Limited

Part Number:

LX5251CPW

Manufacturer:

MSC

Quantity:

20 000

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Rev. 1.1, 2006-02-27

terminator that is compatible with the

SCSI SPI-2 (Ultra2), SCSI SPI-3 (Ultra3

or Ultra160), and SCSI SPI-4 (Ultra320)

specifications developed by the T10

standards committee for low voltage

differential (LVD) termination, while

providing backwards compatibility to the

SCSI, SCSI-2, and SPI single-ended

specifications. Multimode compatibility

permits the use of legacy devices on the

bus

Automatic mode selection is achieved

through

Diffsense line.

standard

individual

maximize channel separation, reduce

channel-to-channel noise and cross talk

to insure Ultra320 performance.

differential sense (DIFFSENSE) pin

supplies a voltage between 1.2V and

1.4V. In

IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com

The LX5251 is a multimode SCSI

The LX5251 utilizes an industry

When the LX5251 is enabled, the

without

L X 5251

voltage

LVD

high

hardware

detection

bandwidth

architecture.

11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570

alterations.

D E S C R I P T I O N

drivers

The

the

input of the corresponding LVD transceivers.

This action enables the LVD transceiver

function. DIFFSENSE is capable of supplying

a maximum of 15mA.

LX5251 in a HI-Z state indicating the presence

of an HVD device. Tying the pin low places

the part in a single-ended mode while also

signaling the multimode transceiver to operate

in a single-ended mode.

configurable peripherals, the LX5251 has a

TTL compatible sleep/disable mode. During

this sleep/disable mode, power dissipation is

reduced to a meager 15uA while also placing

all outputs in a HI-Z state.

sleep/disable mode, the DIFFSENSE function

is disabled and is placed in a HI-Z state.

function. Driving this pin high or floating the

pin enables the 1.3V DIFFSENSE reference.

Driving the pin low disables the on board

DIFFSENSE reference and enables use of an

external master reference device.

application, this pin is tied to the DIFFSENSE

Note: Available in Tape & Reel.Append the letters “TR” to the

Tying the DIFFSENSE pin high places the

Recognizing the needs of portable and

The LX5251 also provides a master / slave

0 to 70

P R O D U C T H I G H L I G H T

(°C)

Integrated Products Division

PACKAGE ORDER INFO

part number. (i.e. LX5251CPW-TR)

Microsemi

RoHS Compliant / Pb-free

Transition DC: 0442

Plastic TSSOP

24-Pin

LX5251CPW

9-Line Multimode SCSI Terminator

Also during

RODUCTION DATA SHEET

Compliant with SCSI SPI-2

(Ultra2), SPI-3 (Ultra160), and

SPI-4 (Ultra320)

Auto-Selectable LVD or Single-

Ended Termination

Fast Response, No Output

Capacitors Required

Compatible with Active Negation

Drivers

15µA Supply Current in

Disconnect Mode

Logic Command Disconnects All

Termination Lines

Diffsense Line Driver

Ground Driver Integrated for

Single-Ended Operation

Current Limit and Thermal

Protection

Hot-Swap Compatible (Single-

Ended)

Available in 24-pin TSSOP

Package

K E Y F E A T U R E S

L X 5251

LX5251

Page 1

Related parts for LX5251CPW

LX5251CPW Summary of contents

Page 1

... T (°C) A RoHS Compliant / Pb-free Transition DC: 0442 LX5251CPW Note: Available in Tape & Reel.Append the letters “TR” to the part number. (i.e. LX5251CPW-TR) Microsemi Integrated Products Division LX5251 Compliant with SCSI SPI-2 (Ultra2), SPI-3 (Ultra160), and SPI-4 (Ultra320) Auto-Selectable LVD or Single- Ended Termination ...

Page 2

Term Power (V ) ................................................................................................-0. TERM Operating Junction Temperature .......................................................................................150°C Storage Temperature Range ............................................................................... -65°C ...

Page 3

Parameter LVD VTerm SE Signal Line ...

Page 4

Unless otherwise specified, ...

Page 5

Page 6

... GND DIFFSENS VTERM LX5251 DISC GND DIFFSENS * DIFFB pin not present on the LX5251CPW. Must connect Diffsense signal to Diffsens pin of each terminator. Copyright © 2002 Rev. 1.1, 2006-02-27 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 ® 9-Line Multimode SCSI Terminator P ...

Page 7

TM PW 24-Pin Thin Small Shrink Outline (TSSOP SEATING PLANE * Lead Coplanarity Note: 1. Dimensions do not include mold flash or protrusions; these shall not exceed 0.155mm(.006”) on any side. Lead dimension shall not include solder coverage. ...

Page 8

TM PRODUCTION DATA – Information contained in this document is proprietary to Microsemi and is current as of publication date. This document may not be modified in any way without the express written consent of Microsemi. Product processing does not ...

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