®
RE G5 60 1
REG5601
RE
G5
60
1
18-LINE SCSI ACTIVE TERMINATOR
FEATURES
q COMPLIES WITH SCSI-2 SPECIFICATIONS q IN...
®
RE G5 60 1
REG5601
RE
G5
60
1
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 SHUTDOWN 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 prescribed 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 impedance 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 finepitch SSOP packages and is specified for operation over the 0°C to 70°C temperature range.
Termpwr Termpwr Thermal Shutdown Current Limit Clamp 110Ω
2.9V Reg Out
Switch
Signal Line 1
Ground
110Ω
2.9V
Signal Line 2 (18 Lines)
Disconnect
Switch Drive
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