LX5252CDB MICROSEMI, LX5252CDB Datasheet

LX5252CDB

Manufacturer Part Number

LX5252CDB

Description

Manufacturer

MICROSEMI

Type

SCSI Terminationr

Datasheet

1.LX5252CDB.pdf (8 pages)

Specifications of LX5252CDB

Number Of Bits

Operating Supply Voltage (typ)

3.3/5V

Operating Supply Voltage (max)

5.25V

Mounting

Surface Mount

Operating Temperature Classification

Commercial

Lead Free Status / RoHS Status

Compliant

Current page: 1 of 8
Download datasheet (189Kb)

Rev. 1.2b, 2005-08-29

terminator that is compatible with the

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

(Ultra3 SCSI or Ultra160 SCSI), and

SCSI SPI-4 (Ultra320) specifications

developed

committee for low voltage differential

(LVD) termination, while providing

backwards compatibility to the SCSI,

SCSI-2,

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

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

The LX5250/52 is a multimode SCSI

The LX5250/52 utilizes an industry

When the LX5250/52 is enabled, the

without

L X 5250/

L X 5252

voltage

LVD

and

high

hardware

the

SPI

detection

bandwidth

architecture.

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

T10

single-ended

alterations.

standards

D E S C R I P T I O N

0 to 70

drivers

The

(°C)

the

Append the letters “TR” to the part number. (i.e. LX5250CDB-TR)

1.4V.

DIFFSENSE input of the corresponding LVD

transceivers.

transceiver function. DIFFSENSE is capable of

supplying a maximum of 10mA.

LX5250/52 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 LX5250/52 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.

slave function.

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.

Tying the DIFFSENSE pin high places the

Recognizing the needs of portable and

The LX5250/52 also provides a master /

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

RoHS Compliant / Pb-free

In application this pin is tied to the

Integrated Products Division

Transition DC: 0535

PACKAGE ORDER INFO

LX5250CDB

LX5252CDB

QSOP

36-Pin

Note: Available in Tape & Reel.

Microsemi

This action enables the LVD

Driving this pin high or

9-Line Multimode SCSI Terminator

Also during

RoHS Compliant / Pb-free

RODUCTION DATA SHEET

Transition DC: 0518

LX5250CPW

TSSOP

28-Pin

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 36-pin QSOP and 28-

pin TSSOP package

LX5250, 36-pin QSOP: Pin

Compatible With DS2118,

UCC5630A and UCC5672

LX5250 28-pin TSSOP: Pin

Compatible with DS2119, and

UCC5672

K E Y F E A T U R E S

L X 5250/

L X 5252

LX5250/5252

Page 1

Related parts for LX5252CDB

LX5252CDB Summary of contents

Page 1

... DB PW 36-Pin RoHS Compliant / Pb-free RoHS Compliant / Pb-free Transition DC: 0535 Transition DC: 0518 LX5250CDB LX5252CDB Note: Available in Tape & Reel. Append the letters “TR” to the part number. (i.e. LX5250CDB-TR) Microsemi Integrated Products Division LX5250/5252 Compliant with SCSI SPI-2 (Ultra2), SPI-3 (Ultra160), and ...

Page 2

... MBIENT JA x θ can vary significantly JA DIFFSENSE Status HI Z 0mA 1.3V 10mA Source 1.3V 10mA Source Outputs DIFFSENSE Status H < 0.5V Enable H 0.7V – 1.9V Enable H > 2.4V Disable X Disable Microsemi Integrated Products Division LX5250/5252 P RODUCTION DATA SHEET HEATSINK 8 29 HEATSINK ...

Page 3

... I LX5252: DISCONNECT < 0.8V, DDQ 4V 25° LINE A LX5250: DISCONNECT > 2.0V; I LX5252: DISCONNECT < 0.8V Open 2.7V 25° TERM LINE 1mA G Microsemi Integrated Products Division LX5250/5252 P RODUCTION DATA SHEET LX5250/52 Units Min Typ Max 2.9 5.25 3.5 5. TERM 0 125 ≤ ≤ ...

Page 4

... POWER SE ON HVD Window & Comp. MODE LVD DELAY DISC LATCH Microsemi Integrated Products Division LX5250/5252 P RODUCTION DATA SHEET ≤ ≤ T 70°C, VTerm = 4.75V. A LX5250/52 Min Typ Max 0.8 2.0 10 100 0.8 2.0 ...

Page 5

... High Voltage Differential output; when High, terminator is operating in HVD mode. Attached to die mounting pad, but not bonded to GND pin. Pins should be considered a heat sink only, and not a true ground connection recommended that these pins be connected to ground, but can be left floating. Microsemi Integrated Products Division LX5250/5252 RODUCTION DATA SHEET pin ...

Page 6

... GND DIFFSENS NC* Pin 1 4.7uF *The capacitor on pin 1 can be placed on the LX5250CDB, LX5250CPW, or LX5252CDB to be pin-compatible with other devices, but is not required. Copyright © 2002 Rev. 1.2b, 2005-08-29 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 ® 9-Line Multimode SCSI Terminator ...

Page 7

... *LC 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. Microsemi Integrated Products Division LX5250/5252 P RODUCTION DATA SHEET M I ILLIMETERS NCHES MIN MAX MIN MAX 2.14 2.54 ...

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 necessarily include testing of all parameters. Microsemi reserves the right to change the configuration and performance of the product and to discontinue product at any time. Copyright © ...

Related keywords

LX5252CDB datasheet
LX5252CDB data sheet
LX5252CDB pdf datasheet
LX5252CDB component
LX5252CDB part
LX5252CDB distributor
LX5252CDB RoHS
LX5252CDB datasheet download