Fairchild Semiconductor
The acquisition of Fairchild by onsemi has culminated. In synergy, an amplified product array emerges: power discretes, ICs, and modules, coupled with a comprehensive selection spanning low to high voltage realms, augmenting design alternatives. This union fortifies our footing in pivotal domains like automotive, industrial, and wireless, bolstered by elevated technical and sales reinforcement.
View All Product from Fairchild SemiconductorThe ML6518 BiCMOS 18 line SCSI terminator providesactive termination in SCSI systems using single-endeddrivers and receivers. Active SCSI termination helps toeffectively control analog transmission line effects such asringing, noise, crosstalk, and ground bounce. In addition,the ML6518 provides support for hot insertability on theSCSI bus.The ML6518 provides a V-I characteristic optimized tominimize transmission line effects during both signalnegation and assertion using a MOSFET-basedarchitecture. The desired V-I characteristic is achieved bytrimming one resistor in the control block. Internalclamping controls signal assertion transients and providescurrent sink capability to handle active negation driverovershoots above 2.85V. It provides a 2.85V referencethrough an internal low dropout (1V) linear regulator.The ML6518 also provides a disconnect function whicheffectively removes the terminator from the SCSI bus. Thedisconnect mode capacitance is typically less than 5pFper line. Current limiting and thermal shutdown protectionare also included.
12345678925L126L227L328L412346L5L6L7L8L9Signal termination for SCSIbus line 1Signal termination for SCSIbus line 2Signal termination for SCSIbus line 3Signal termination for SCSIbus line 4Signal termination for SCSIbus line 5Signal termination for SCSIbus line 6Signal termination for SCSIbus line 7Signal termination for SCSIbus line 8Signal termination for SCSIbus line 911–14, 7, 22, GND2327–30Ground158DISCNKT Terminator disconnect. Logicinput to disconnect theterminator from the bus whenthe SCSI device no longerneeds termination. DISCNKThas a 200ký internal pull-upresistor connected toTERMPWR for use with amechanical switch16171819202122232411L1012L1113L1214L1315L1416L1517L1618L1719L18Signal termination for SCSIbus line 10Signal termination for SCSIbus line 11Signal termination for SCSIbus line 12Signal termination for SCSIbus line 13Signal termination for SCSIbus line 14Signal termination for SCSIbus line 15Signal termination for SCSIbus line 16Signal termination for SCSIbus line 17Signal termination for SCSIbus line 1825, 26 20, 21 TERMPWR Power should be connectedto the SCSI TERMPWR line.A 22µF tantalum bypasscapacitor is recommendedas shown in the applicationdiagram31, 3224VREF2.85V VREF output. Externaldecoupling with a 10µFtantalum in parallel with a0.1µF ceramic capacitor isrecommended as shown in theapplication diagram3
TYPE | DESCRIPTION | Select all |
---|---|---|
Package | Bulk | |
Series | - | |
Supplier Device Package | 32-TQFP (7x7) | |
Package / Case | 32-TQFP | |
Mounting Type | Surface Mount | |
Operating Temperature | 0°C ~ 70°C | |
Voltage - Supply | 4V ~ 5.25V | |
Number of Terminations | 18 | |
Type | SCSI | |
Product Status | Active |
Fairchild Semiconductor
The acquisition of Fairchild by onsemi has culminated. In synergy, an amplified product array emerges: power discretes, ICs, and modules, coupled with a comprehensive selection spanning low to high voltage realms, augmenting design alternatives. This union fortifies our footing in pivotal domains like automotive, industrial, and wireless, bolstered by elevated technical and sales reinforcement.
View All Product from Fairchild SemiconductorSCSI TERMINATOR, 18-LINE, PQFP32
DECODER/DRIVER, TTL, PDIP16
DECODER/DRIVER, TTL
LINE DRIVER/RECEIVER, 2 DRIVER
IC BUFFER NON-INVERT 5.5V 20DIP
IC BUFFER INVERT 5.25V 14DIP
BUS DRIVER, LS SERIES TTL
BUS TRANSCEIVER, LS SERIES TTL
IC TXRX INVERT 5.5V 24DIP
IC BINARY COUNTER 4-BIT 16DIP