REG5608U-TR

更新时间： 2024-11-20 13:12:55

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数据手册

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REG5608U-TR 数据手册

REG5608

LOW CAPACITANCE 18-Line SCSI

ACTIVE TERMINATOR

FEATURES

DESCRIPTION

● ACTIVE 18-Line TERMINATOR

The REG5608 is a low capacitance 18-line active

terminator for SCSI (Small Computer Systems

Interface) parallel bus systems. On-chip resistors and

voltage regulator provide the prescribed SCSI bus

termination. Low line capacitance (2pF) meets

requirements for high data rate systems.

● 2pF CAPACITANCE PER LINE

IMPORTANT FOR SCSI FAST-20

● ON-CHIP TERMINATION RESISTORS

● ALL TERMINATIONS DISCONNECT WITH

SINGLE LOGIC SIGNAL

All terminations can be disconnected from the bus

with a single logic control line. In the disconnect

mode, output lines remain high impedance with or

without power applied. This allows “hot socket”

equipment plugging as required for “plug and play”

applications.

● 325mA CURRENT SINKING FOR ACTIVE

NEGATION

● 22.4mA PER LINE DURING ASSERTION

● CURRENT LIMIT AND THERMAL LIMIT

● HOT-SOCKET CAPABLE

The internal voltage regulator is temperature-compen-

sated to assure proper termination characteristics over

a wide operating range. Output current and thermal

limit circuitry protect against damage.

● 28-Lead SOIC and SSOP PACKAGES

The REG5608 is available in 28-lead SOIC and

fine-pitch SSOP packages and is specified for 0°C to

70°C operation.

2.9V

Reg Out

TERMPWR

Regulator

110Ω

SCSI

Termination

Lines

Thermal

Limit

Current

Limit

110Ω

Switch

Drive

Disconnect

(18 lines)

International Airport Industrial Park

•

Mailing Address: PO Box 11400

Cable: BBRCORP

•

Tucson, AZ 85734

•

Street Address: 6730 S. Tucson Blvd.

• Tucson, AZ 85706

Tel: (520)746-1111

•

Twx: 910-952-1111

•

Telex: 066-6491

•

FAX: (520)889-1510

•

Immediate Product Info: (800)548-6132

PDS-1305

Printed in U.S.A. November, 1995

12 3 4 5

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