UC5607J

更新时间： 2024-11-19 03:24:35

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
4页	247K
描述
Plug and Play, 18-Line SCSI Active Terminator

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UC5607J 数据手册

UC5607

Plug and Play, 18-Line SCSI Active Terminator

FEATURES

DESCRIPTION

• Complies with SCSI and SCSI-2

Standards

The UC5607 provides 18 lines of active termination for a SCSI (Small

Computer Systems Interface) parallel bus. The SCSI standard recom-

mends active termination at both ends of the cable segment.

• 8pF Channel Capacitance during

Disconnect

The UC5607 provides a low disconnect feature which will disconnect all

terminating resistors, and will disable the regulator, greatly reducing

standby power. The output channels remain high impedance even without

Termpwr applied.

• SCSI Plug and Play, Dual Low

Disconnect, Logic Low Command

Disconnects All Termination Lines

The UC5607 terminator is specially designed with two disconnect pins for

full SCSI Plug and Play (PnP) applications.

• Meets SCSI Hot Plugging Capability

• -650mA Sourcing Current for

Termination

Custom power packages are utilized to allow normal operation at full

power conditions (2 Watts).

• +200mA Sinking Current for Active

Negation

Internal circuit trimming is utilized, first to trim the impedance to a 7% tol-

erance, and then most importantly, to trim the output current to a 7% toler-

ance, as close to the max SCSI spec as possible, which maximizes noise

margin in fast SCSI operation.

• 200µA Supply Current in Disconnect

Mode

Other features include thermal shutdown and current limit.

• Trimmed Termination Current to 7%

• Trimmed Impedance to 7%

This device is offered in low thermal resistance versions of the industry

standard 28 pin wide body SOIC, and 28 pin PLCC, as well as 24 pin DIP.

• Provides Active Termination for 18

Lines

BLOCK DIAGRAM

Connect Connect Connect

Disc

DISCNCT1

DISCNCT2

UDG-94124

Circuit Design Patented

7/98

12 3 4

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与UC5607J相关器件

型号	品牌	获取价格	描述	数据表
UC5607N	TI	获取价格	Plug and Play, 18-Line SCSI Active Terminator
UC5607QP	TI	获取价格	Plug and Play, 18-Line SCSI Active Terminator
UC5607QPTR	ETC	获取价格	Terminator
UC5608	TI	获取价格	18-Line Low Capacitance SCSI Active Terminator
UC5608DWP	TI	获取价格	18-Line Low Capacitance SCSI Active Terminator
UC5608DWP/81168	TI	获取价格	Lower Capacitance 18-Line 5V SE Terminator for SCSI and Fast SCSI 28-SOIC 0 to 70
UC5608DWPTR	ETC	获取价格	Terminator
UC5608J	ETC	获取价格	Terminator
UC5608N	ETC	获取价格	Terminator
UC5608PWP	ETC	获取价格	Terminator