REG5601 Datasheet, PDF (1/3 Pages) Burr-Brown (TI) – 18-LINE SCSI ACTIVE TERMINATOR

®
REG5601
REG5601
REG5601
18-LINE SCSI
ACTIVE TERMINATOR
FEATURES
q COMPLIES WITH SCSI-2 SPECIFICATIONS
q INTERNAL 2.9V REGULATOR
q ON-CHIP TERMINATION RESISTORS
q DISCONNECT ALL TERMINATION
RESISTORS WITH A SINGLE LOGIC
COMMAND
q POWER-DOWN MODE: 150µA max
q LINE CAPACITANCE: 10pF typ
q CURRENT LIMIT AND THERMAL SHUT-
DOWN PROTECTION
q 28-Lead SOIC and SSOP PACKAGES
DESCRIPTION
The REG5601 is an 18-line active terminator for
SCSI-2 (Small Computer Systems Interface) circuitry.
On-chip resistors and 2.9V regulator provide the pre-
scribed 110Ω termination for low power dissipation
and high speed data transmission.
All line connections can be disconnected from the bus
with a single logic control line to reduce standby
power consumption. Output lines remain high imped-
ance without power applied. Each line is individually
clamped at ground to dissipate negative-going glitches.
The 2.9V regulator is current-limited and thermally
protected. Regulated output is available for external
circuitry.
The REG5601 is available in 28-lead SOIC and fine-
pitch SSOP packages and is specified for operation
over the 0°C to 70°C temperature range.
Termpwr
Ground
Disconnect
Thermal
Shutdown
Current
Limit
Termpwr
Clamp
Switch ^110Ω
2.9V
Reg Out
Signal
Line 1
2.9V
Switch
Drive
110Ω
Signal
Line 2
•
•
•
(18 Lines)
International Airport Industrial Park • Mailing Address: PO Box 11400 • Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd. • Tucson, AZ 85706
Tel: [phone] • Twx: 910-952-1111 • Cable: BBRCORP • Telex: 066-6491 • FAX: [phone] • Immediate Product Info: [phone]
©_{1994 Burr-Brown Corporation}
PDS-1216B
Printed in U.S.A. August, 1995