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REG5608U Datasheet(PDF) 1 Page - Burr-Brown (TI) |
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REG5608U Datasheet(HTML) 1 Page - Burr-Brown (TI) |
1 / 5 page REG5608 FEATURES q ACTIVE 18-Line TERMINATOR q 2pF CAPACITANCE PER LINE IMPORTANT FOR SCSI FAST-20 q ON-CHIP TERMINATION RESISTORS q ALL TERMINATIONS DISCONNECT WITH SINGLE LOGIC SIGNAL q 325mA CURRENT SINKING FOR ACTIVE NEGATION q 22.4mA PER LINE DURING ASSERTION q CURRENT LIMIT AND THERMAL LIMIT q HOT-SOCKET CAPABLE q 28-Lead SOIC and SSOP PACKAGES DESCRIPTION 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. 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. 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. The REG5608 is available in 28-lead SOIC and fine-pitch SSOP packages and is specified for 0 °C to 70 °C operation. ® LOW CAPACITANCE 18-Line SCSI ACTIVE TERMINATOR REG5608 REG5608 TERMPWR Disconnect Thermal Limit 2.9V Regulator Reg Out 110 Ω 110 Ω 110 Ω (18 lines) SCSI Termination Lines Switch Drive Current Limit International Airport Industrial Park • Mailing Address: PO Box 11400 • Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd. • Tucson, AZ 85706 Tel: (520) 746-1111 • Twx: 910-952-1111 • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132 © 1995 Burr-Brown Corporation PDS-1305 Printed in U.S.A. November, 1995 |
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