Datasheet > UC5613J

UC5613J

更新时间： 2024-11-07 23:38:59

品牌	Logo	应用领域
其他 - ETC		接口集成电路
页数	文件大小	规格书
5页	268K
描述
Terminator

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

UC5613J 数据手册

UC5613

9-Line Low Capacitance SCSI Active Terminator

FEATURES

DESCRIPTION

•

Complies with SCSI, SCSI-2 and

SPI-2 Standards

The UC5613 provides 9 lines of active termination for a SCSI (Small Com-

puter Systems Interface) parallel bus. The SCSI standard recommends ac-

tive termination at both ends of the cable segment.

3pF Channel Capacitance during

Disconnect

The UC5613 provides a disconnect feature which, when opened or driven

high, disconnects all terminating resistors and disables the regulator

greatly reducing standby power. The output channels remain high imped-

ance even without Termpwr applied. A low channel capacitance of 3pF al-

lows units at interim points of the bus to have little or no effect on the signal

integrity.

100µA Supply Current in

Disconnect Mode

•

Meets SCSI Hot Plugging Capability

−400mA Sourcing Current for

Termination

The UC5613 is pin-for-pin compatible with its predecessor, the UC5603 - 9

line Active Terminator. The only functional difference between the UC5613

and UC5603 is the absence of the negative clamps. Parametrically, the

UC5613 has a 5% tolerance on impedance and current compared to a 3%

tolerance on the UC5603. Custom power packages are utilized to allow

normal operation at full power (1.2 watts).

•

+400mA Sinking Current for Active

Negation

Logic Command Disconnects all

Termination Lines

•

Trimmed Termination Current to 5%

Trimmed Impedance to 5%

Internal circuit trimming is utilized, first to trim the impedance to a 5% toler-

ance; then, the output current is trimmed to a 5% tolerance. The output

current trim is set as close as possible to the maximum value of the SCSI

specification which maximizes the noise margin for fast SCSI operation.

Current Limit and Thermal

Shutdown Protection

Other features include thermal shutdown and current limit.

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

standard 16 pin narrow body SOIC, 16 pin ZIP (zig-zag in line package),

and 24 pin TSSOP.

BLOCK DIAGRAM

UDG-94003-1

Circuit Design Patented

3/97

12 3 4 5

中文翻译

下载PDF

与UC5613J相关器件

型号	品牌	获取价格	描述	数据表
UC5613N	ETC	获取价格	Terminator
UC5613PWP	ETC	获取价格	Terminator
UC5613PWPTR	ETC	获取价格	Terminator
UC5613QP	TI	获取价格	Lower Capacitance 9-Line 5V SE Terminator for SCSI and Fast SCSI 28-PLCC 0 to 70
UC5613QPTR	TI	获取价格	Lower Capacitance 9-Line 5V SE Terminator for SCSI and Fast SCSI 28-PLCC 0 to 70
UC5613Z	TI	获取价格	暂无描述
UC563DP	ETC	获取价格	Positive Fixed Voltage Regulator
UC563DPG4	TI	获取价格	IC SPECIALTY INTERFACE CIRCUIT, PDSO8, POWER, SOIC-8, Interface IC:Other
UC563DPTR	TI	获取价格	SPECIALTY INTERFACE CIRCUIT, PDSO8, POWER, SOIC-8
UC563T	TI	获取价格	SPECIALTY INTERFACE CIRCUIT, PSFM3, TO-220, 3 PIN