Datasheet > UCC5630A

UCC5630A

更新时间： 2024-11-25 22:49:27

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
8页	146K
描述
Multimode SCSI 9 Line Terminator

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中文翻译

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数据手册
替代型号

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UCC5630A 数据手册

UCC5630A

Multimode SCSI 9 Line Terminator

FEATURES

DESCRIPTION

• Auto Selection Single Ended (SE) or

Low Voltage Differential (LVD)

Termination

The UCC5630A Multimode SCSI Terminator provides a smooth transition

into the LVD SCSI Parallel Interface (SPI-2, SPI-3, SPI-4). It automatically

senses the bus, via DIFFB, and switches the termination to either single

ended (SE) or low voltage differential (LVD) SCSI, dependent on which

type of devices are connected to the bus. The UCC5630A can not be used

on a HVD, EIA485, differential SCSI bus. If the UCC5630A detects a HVD

SCSI device, it switches to a high impedance state.

• Meets SCSI-1, SCSI-2, Ultra2 (SPI-2

LVD), Ultra3, Ultra160 (SPI-3) and

Ultra320 (SPI-4) Standards

• 2.7V to 5.25V Operation

• Differential Failsafe Bias

The Multimode terminator contains all functions required to terminate and

auto detect and switch modes for SPI-2, SPI-3 and SPI-4 bus architectures.

Single Ended and Differential impedances and currents are trimmed for

maximum effectiveness. Fail Safe biasing is provided to insure signal integ-

rity. Device/Bus type detection circuitry is integrated into the terminator to

provide automatic switching of termination between single ended and LVD

SCSI and a high impedance for HVD SCSI. The multimode function pro-

vides all the performance analog functions necessary to implement SPI-2

termination in a single monolithic device.

• Thermal packaging for low junction

temperature and better MTBF

• Master/Slave Input

• Supports Active Negation

• 3pF Channel Capacitance

The UCC5630A is offered in a 36 pin SSOP package, as well as a 48 pin

LQFP package for a temperature range of 0°C to 70°C.

BLOCK DIAGRAM

HIPD LVD

35 34

(NOISE LOAD)

REF 1.3V

HIPD

2.15V

1.3V

20 DIFSENS

DIFFB 21

LVD

–15mA ≤ I

≤ –5mA

SOURCE

0.6V

50µA ≤ I

≤ 200µA

SINK

MSTR/SLV

110

124

SOURCE/SINK REGULATOR

SE REF 2.7V

56mV

52.5

–

L1–

L1+

LVD REF 1.25V

56mV

–

ALL

SWITCHES

MODE

SE GND SWITCH

56mV

LVD

110

124

10µA

DOWN

OPEN

HIPD

52.5

ENABLE

SWITCHES

–

DISCNCT

32 L9–

31 L9+

56mV

–

TRMPWR 36

SE GND SWITCH

PATENTED CIRCUIT DESIGN

GND

REG

HS/GND

UDG-98192

Note: Indicated pinout is for 36 pin SSOP package.

SLUS322C - SEPTEMBER 1999 - REVISED MARCH 2002

12 3 4 5 6 7 8

中文翻译

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UCC5630A 替代型号

型号	品牌	替代类型	描述	数据表
UCC5630	TI	功能相似	Low Voltage Differential LVD/SE SCSI 9 Line Terminator

与UCC5630A相关器件

型号	品牌	获取价格	描述	数据表
UCC5630AFQP	TI	获取价格	Multimode SCSI 9 Line Terminator
UCC5630AFQPG4	TI	获取价格	9-LINE 105ohm SCSI BUS TERMINATOR, PQFP48, GREEN, PLASTIC, LQFP-48
UCC5630AFQPTR	TI	获取价格	Multimode SCSI 9 Line Terminator
UCC5630AFQPTRG4	TI	获取价格	9-LINE 105ohm SCSI BUS TERMINATOR, PQFP48, GREEN, PLASTIC, LQFP-48
UCC5630AMWP	TI	获取价格	Multimode SCSI 9 Line Terminator
UCC5630AMWP/81535	TI	获取价格	Multimode SCSI 9 Line Terminator
UCC5630AMWPR/81535	TI	获取价格	Multimode SCSI 9 Line Terminator
UCC5630AMWPTR	TI	获取价格	Multimode SCSI 9 Line Terminator
UCC5630AMWPTR/81535	TI	获取价格	UCC5630AMWPTR/81535
UCC5630AMWPTRG4	TI	获取价格	Multimode SCSI 9 Line Terminator

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